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mac80211: clarify alignment comment
[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, },
55682965
JB		 373};
374
e31b8213 375/* policy for the key attributes */
b54452b0 376static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 377 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 378 [NL80211_KEY_IDX] = { .type = NLA_U8 },
379 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 380 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 381 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
382 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 383 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 384 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
385};
386
387/* policy for the key default flags */
388static const struct nla_policy
389nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
390 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
391 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 392};
393
ff1b6e69
JB		 394/* policy for WoWLAN attributes */
395static const struct nla_policy
396nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
397 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
400 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 401 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
402 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
403 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
404 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 405 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
406};
407
408static const struct nla_policy
409nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
410 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
411 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
412 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
413 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
414 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
415 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
416 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
417 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
418 },
419 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
420 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
421 },
422 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
423 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
424 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 425};
426
e5497d76
JB		 427/* policy for GTK rekey offload attributes */
428static const struct nla_policy
429nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
430 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
431 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
432 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
433};
434
a1f1c21c
LC		 435static const struct nla_policy
436nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 437 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 438 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 439 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 440};
441
a043897a
HS		 442/* ifidx get helper */
443static int nl80211_get_ifidx(struct netlink_callback *cb)
444{
445 int res;
446
447 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
448 nl80211_fam.attrbuf, nl80211_fam.maxattr,
449 nl80211_policy);
450 if (res)
451 return res;
452
453 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
454 return -EINVAL;
455
456 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
457 if (!res)
458 return -EINVAL;
459 return res;
460}
461
67748893
JB		 462static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
463 struct netlink_callback *cb,
464 struct cfg80211_registered_device **rdev,
465 struct net_device **dev)
466{
467 int ifidx = cb->args[0];
468 int err;
469
470 if (!ifidx)
471 ifidx = nl80211_get_ifidx(cb);
472 if (ifidx < 0)
473 return ifidx;
474
475 cb->args[0] = ifidx;
476
477 rtnl_lock();
478
479 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
480 if (!*dev) {
481 err = -ENODEV;
482 goto out_rtnl;
483 }
484
485 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 486 if (IS_ERR(*rdev)) {
487 err = PTR_ERR(*rdev);
67748893
JB		 488 goto out_rtnl;
489 }
490
491 return 0;
492 out_rtnl:
493 rtnl_unlock();
494 return err;
495}
496
497static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
498{
499 cfg80211_unlock_rdev(rdev);
500 rtnl_unlock();
501}
502
f4a11bb0
JB		 503/* IE validation */
504static bool is_valid_ie_attr(const struct nlattr *attr)
505{
506 const u8 *pos;
507 int len;
508
509 if (!attr)
510 return true;
511
512 pos = nla_data(attr);
513 len = nla_len(attr);
514
515 while (len) {
516 u8 elemlen;
517
518 if (len < 2)
519 return false;
520 len -= 2;
521
522 elemlen = pos[1];
523 if (elemlen > len)
524 return false;
525
526 len -= elemlen;
527 pos += 2 + elemlen;
528 }
529
530 return true;
531}
532
55682965 533/* message building helper */
15e47304 534static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 535 int flags, u8 cmd)
536{
537 /* since there is no private header just add the generic one */
15e47304 538 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 539}
540
5dab3b8a
LR		 541static int nl80211_msg_put_channel(struct sk_buff *msg,
542 struct ieee80211_channel *chan)
543{
9360ffd1
DM		 544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
545 chan->center_freq))
546 goto nla_put_failure;
5dab3b8a 547
9360ffd1
DM		 548 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
549 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
550 goto nla_put_failure;
551 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
552 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
553 goto nla_put_failure;
554 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
556 goto nla_put_failure;
1c33a059
JB		 557 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
559 goto nla_put_failure;
5dab3b8a 560
9360ffd1
DM		 561 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
562 DBM_TO_MBM(chan->max_power)))
563 goto nla_put_failure;
5dab3b8a
LR		 564
565 return 0;
566
567 nla_put_failure:
568 return -ENOBUFS;
569}
570
55682965
JB		 571/* netlink command implementations */
572
b9454e83
JB		 573struct key_parse {
574 struct key_params p;
575 int idx;
e31b8213 576 int type;
b9454e83 577 bool def, defmgmt;
dbd2fd65 578 bool def_uni, def_multi;
b9454e83
JB		 579};
580
581static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
582{
583 struct nlattr *tb[NL80211_KEY_MAX + 1];
584 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
585 nl80211_key_policy);
586 if (err)
587 return err;
588
589 k->def = !!tb[NL80211_KEY_DEFAULT];
590 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
591
dbd2fd65
JB		 592 if (k->def) {
593 k->def_uni = true;
594 k->def_multi = true;
595 }
596 if (k->defmgmt)
597 k->def_multi = true;
598
b9454e83
JB		 599 if (tb[NL80211_KEY_IDX])
600 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
601
602 if (tb[NL80211_KEY_DATA]) {
603 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
604 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
605 }
606
607 if (tb[NL80211_KEY_SEQ]) {
608 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
609 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
610 }
611
612 if (tb[NL80211_KEY_CIPHER])
613 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
614
e31b8213
JB		 615 if (tb[NL80211_KEY_TYPE]) {
616 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
617 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
618 return -EINVAL;
619 }
620
dbd2fd65
JB		 621 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
622 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 623 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
624 tb[NL80211_KEY_DEFAULT_TYPES],
625 nl80211_key_default_policy);
dbd2fd65
JB		 626 if (err)
627 return err;
628
629 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
630 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
631 }
632
b9454e83
JB		 633 return 0;
634}
635
636static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
637{
638 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
639 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
640 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
641 }
642
643 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
644 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
645 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
646 }
647
648 if (info->attrs[NL80211_ATTR_KEY_IDX])
649 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
650
651 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
652 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
653
654 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
655 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
656
dbd2fd65
JB		 657 if (k->def) {
658 k->def_uni = true;
659 k->def_multi = true;
660 }
661 if (k->defmgmt)
662 k->def_multi = true;
663
e31b8213
JB		 664 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
665 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
666 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
667 return -EINVAL;
668 }
669
dbd2fd65
JB		 670 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
671 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
672 int err = nla_parse_nested(
673 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
674 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
675 nl80211_key_default_policy);
676 if (err)
677 return err;
678
679 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
680 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
681 }
682
b9454e83
JB		 683 return 0;
684}
685
686static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
687{
688 int err;
689
690 memset(k, 0, sizeof(*k));
691 k->idx = -1;
e31b8213 692 k->type = -1;
b9454e83
JB		 693
694 if (info->attrs[NL80211_ATTR_KEY])
695 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
696 else
697 err = nl80211_parse_key_old(info, k);
698
699 if (err)
700 return err;
701
702 if (k->def && k->defmgmt)
703 return -EINVAL;
704
dbd2fd65
JB		 705 if (k->defmgmt) {
706 if (k->def_uni || !k->def_multi)
707 return -EINVAL;
708 }
709
b9454e83
JB		 710 if (k->idx != -1) {
711 if (k->defmgmt) {
712 if (k->idx < 4 || k->idx > 5)
713 return -EINVAL;
714 } else if (k->def) {
715 if (k->idx < 0 || k->idx > 3)
716 return -EINVAL;
717 } else {
718 if (k->idx < 0 || k->idx > 5)
719 return -EINVAL;
720 }
721 }
722
723 return 0;
724}
725
fffd0934
JB		 726static struct cfg80211_cached_keys *
727nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 728 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 729{
730 struct key_parse parse;
731 struct nlattr *key;
732 struct cfg80211_cached_keys *result;
733 int rem, err, def = 0;
734
735 result = kzalloc(sizeof(*result), GFP_KERNEL);
736 if (!result)
737 return ERR_PTR(-ENOMEM);
738
739 result->def = -1;
740 result->defmgmt = -1;
741
742 nla_for_each_nested(key, keys, rem) {
743 memset(&parse, 0, sizeof(parse));
744 parse.idx = -1;
745
746 err = nl80211_parse_key_new(key, &parse);
747 if (err)
748 goto error;
749 err = -EINVAL;
750 if (!parse.p.key)
751 goto error;
752 if (parse.idx < 0 || parse.idx > 4)
753 goto error;
754 if (parse.def) {
755 if (def)
756 goto error;
757 def = 1;
758 result->def = parse.idx;
dbd2fd65
JB		 759 if (!parse.def_uni || !parse.def_multi)
760 goto error;
fffd0934
JB		 761 } else if (parse.defmgmt)
762 goto error;
763 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 764 parse.idx, false, NULL);
fffd0934
JB		 765 if (err)
766 goto error;
767 result->params[parse.idx].cipher = parse.p.cipher;
768 result->params[parse.idx].key_len = parse.p.key_len;
769 result->params[parse.idx].key = result->data[parse.idx];
770 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 771
772 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
773 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
774 if (no_ht)
775 *no_ht = true;
776 }
fffd0934
JB		 777 }
778
779 return result;
780 error:
781 kfree(result);
782 return ERR_PTR(err);
783}
784
785static int nl80211_key_allowed(struct wireless_dev *wdev)
786{
787 ASSERT_WDEV_LOCK(wdev);
788
fffd0934
JB		 789 switch (wdev->iftype) {
790 case NL80211_IFTYPE_AP:
791 case NL80211_IFTYPE_AP_VLAN:
074ac8df 792 case NL80211_IFTYPE_P2P_GO:
ff973af7 793 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 794 break;
795 case NL80211_IFTYPE_ADHOC:
796 if (!wdev->current_bss)
797 return -ENOLINK;
798 break;
799 case NL80211_IFTYPE_STATION:
074ac8df 800 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 801 if (wdev->sme_state != CFG80211_SME_CONNECTED)
802 return -ENOLINK;
803 break;
804 default:
805 return -EINVAL;
806 }
807
808 return 0;
809}
810
7527a782
JB		 811static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
812{
813 struct nlattr *nl_modes = nla_nest_start(msg, attr);
814 int i;
815
816 if (!nl_modes)
817 goto nla_put_failure;
818
819 i = 0;
820 while (ifmodes) {
9360ffd1
DM		 821 if ((ifmodes & 1) && nla_put_flag(msg, i))
822 goto nla_put_failure;
7527a782
JB		 823 ifmodes >>= 1;
824 i++;
825 }
826
827 nla_nest_end(msg, nl_modes);
828 return 0;
829
830nla_put_failure:
831 return -ENOBUFS;
832}
833
834static int nl80211_put_iface_combinations(struct wiphy *wiphy,
835 struct sk_buff *msg)
836{
837 struct nlattr *nl_combis;
838 int i, j;
839
840 nl_combis = nla_nest_start(msg,
841 NL80211_ATTR_INTERFACE_COMBINATIONS);
842 if (!nl_combis)
843 goto nla_put_failure;
844
845 for (i = 0; i < wiphy->n_iface_combinations; i++) {
846 const struct ieee80211_iface_combination *c;
847 struct nlattr *nl_combi, *nl_limits;
848
849 c = &wiphy->iface_combinations[i];
850
851 nl_combi = nla_nest_start(msg, i + 1);
852 if (!nl_combi)
853 goto nla_put_failure;
854
855 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
856 if (!nl_limits)
857 goto nla_put_failure;
858
859 for (j = 0; j < c->n_limits; j++) {
860 struct nlattr *nl_limit;
861
862 nl_limit = nla_nest_start(msg, j + 1);
863 if (!nl_limit)
864 goto nla_put_failure;
9360ffd1
DM		 865 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
866 c->limits[j].max))
867 goto nla_put_failure;
7527a782
JB		 868 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
869 c->limits[j].types))
870 goto nla_put_failure;
871 nla_nest_end(msg, nl_limit);
872 }
873
874 nla_nest_end(msg, nl_limits);
875
9360ffd1
DM		 876 if (c->beacon_int_infra_match &&
877 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
878 goto nla_put_failure;
879 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
880 c->num_different_channels) ||
881 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
882 c->max_interfaces))
883 goto nla_put_failure;
7527a782
JB		 884
885 nla_nest_end(msg, nl_combi);
886 }
887
888 nla_nest_end(msg, nl_combis);
889
890 return 0;
891nla_put_failure:
892 return -ENOBUFS;
893}
894
15e47304 895static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 896 struct cfg80211_registered_device *dev)
897{
898 void *hdr;
ee688b00
JB		 899 struct nlattr *nl_bands, *nl_band;
900 struct nlattr *nl_freqs, *nl_freq;
901 struct nlattr *nl_rates, *nl_rate;
8fdc621d 902 struct nlattr *nl_cmds;
ee688b00
JB		 903 enum ieee80211_band band;
904 struct ieee80211_channel *chan;
905 struct ieee80211_rate *rate;
906 int i;
2e161f78
JB		 907 const struct ieee80211_txrx_stypes *mgmt_stypes =
908 dev->wiphy.mgmt_stypes;
55682965 909
15e47304 910 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 911 if (!hdr)
912 return -1;
913
9360ffd1
DM		 914 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
915 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
916 nla_put_u32(msg, NL80211_ATTR_GENERATION,
917 cfg80211_rdev_list_generation) ||
918 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
919 dev->wiphy.retry_short) ||
920 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
921 dev->wiphy.retry_long) ||
922 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
923 dev->wiphy.frag_threshold) ||
924 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
925 dev->wiphy.rts_threshold) ||
926 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
927 dev->wiphy.coverage_class) ||
928 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
929 dev->wiphy.max_scan_ssids) ||
930 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
931 dev->wiphy.max_sched_scan_ssids) ||
932 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
933 dev->wiphy.max_scan_ie_len) ||
934 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
935 dev->wiphy.max_sched_scan_ie_len) ||
936 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
937 dev->wiphy.max_match_sets))
938 goto nla_put_failure;
939
940 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
941 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
942 goto nla_put_failure;
943 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
944 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
945 goto nla_put_failure;
946 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
947 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
948 goto nla_put_failure;
949 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
950 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
951 goto nla_put_failure;
952 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
953 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
954 goto nla_put_failure;
955 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
956 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
957 goto nla_put_failure;
958
959 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
960 sizeof(u32) * dev->wiphy.n_cipher_suites,
961 dev->wiphy.cipher_suites))
962 goto nla_put_failure;
963
964 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
965 dev->wiphy.max_num_pmkids))
966 goto nla_put_failure;
967
968 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
969 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
970 goto nla_put_failure;
971
972 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
973 dev->wiphy.available_antennas_tx) ||
974 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
975 dev->wiphy.available_antennas_rx))
976 goto nla_put_failure;
977
978 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
979 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
980 dev->wiphy.probe_resp_offload))
981 goto nla_put_failure;
87bbbe22 982
7f531e03
BR		 983 if ((dev->wiphy.available_antennas_tx ||
984 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 985 u32 tx_ant = 0, rx_ant = 0;
986 int res;
e35e4d28 987 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
afe0cbf8 988 if (!res) {
9360ffd1
DM		 989 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
990 tx_ant) ||
991 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
992 rx_ant))
993 goto nla_put_failure;
afe0cbf8
BR		 994 }
995 }
996
7527a782
JB		 997 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
998 dev->wiphy.interface_modes))
f59ac048
LR		 999 goto nla_put_failure;
1000
ee688b00
JB		 1001 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1002 if (!nl_bands)
1003 goto nla_put_failure;
1004
1005 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1006 if (!dev->wiphy.bands[band])
1007 continue;
1008
1009 nl_band = nla_nest_start(msg, band);
1010 if (!nl_band)
1011 goto nla_put_failure;
1012
d51626df 1013 /* add HT info */
9360ffd1
DM		 1014 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
1015 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1016 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
1017 &dev->wiphy.bands[band]->ht_cap.mcs) ||
1018 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1019 dev->wiphy.bands[band]->ht_cap.cap) ||
1020 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1021 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
1022 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1023 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
1024 goto nla_put_failure;
d51626df 1025
bf0c111e
MP		 1026 /* add VHT info */
1027 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1028 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1029 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1030 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1031 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1032 dev->wiphy.bands[band]->vht_cap.cap)))
1033 goto nla_put_failure;
1034
ee688b00
JB		 1035 /* add frequencies */
1036 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1037 if (!nl_freqs)
1038 goto nla_put_failure;
1039
1040 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1041 nl_freq = nla_nest_start(msg, i);
1042 if (!nl_freq)
1043 goto nla_put_failure;
1044
1045 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1046
1047 if (nl80211_msg_put_channel(msg, chan))
1048 goto nla_put_failure;
e2f367f2 1049
ee688b00
JB		 1050 nla_nest_end(msg, nl_freq);
1051 }
1052
1053 nla_nest_end(msg, nl_freqs);
1054
1055 /* add bitrates */
1056 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1057 if (!nl_rates)
1058 goto nla_put_failure;
1059
1060 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1061 nl_rate = nla_nest_start(msg, i);
1062 if (!nl_rate)
1063 goto nla_put_failure;
1064
1065 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1066 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1067 rate->bitrate))
1068 goto nla_put_failure;
1069 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1070 nla_put_flag(msg,
1071 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1072 goto nla_put_failure;
ee688b00
JB		 1073
1074 nla_nest_end(msg, nl_rate);
1075 }
1076
1077 nla_nest_end(msg, nl_rates);
1078
1079 nla_nest_end(msg, nl_band);
1080 }
1081 nla_nest_end(msg, nl_bands);
1082
8fdc621d
JB		 1083 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1084 if (!nl_cmds)
1085 goto nla_put_failure;
1086
1087 i = 0;
1088#define CMD(op, n) \
1089 do { \
1090 if (dev->ops->op) { \
1091 i++; \
9360ffd1
DM		 1092 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1093 goto nla_put_failure; \
8fdc621d
JB		 1094 } \
1095 } while (0)
1096
1097 CMD(add_virtual_intf, NEW_INTERFACE);
1098 CMD(change_virtual_intf, SET_INTERFACE);
1099 CMD(add_key, NEW_KEY);
8860020e 1100 CMD(start_ap, START_AP);
8fdc621d
JB		 1101 CMD(add_station, NEW_STATION);
1102 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1103 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1104 CMD(change_bss, SET_BSS);
636a5d36
JM		 1105 CMD(auth, AUTHENTICATE);
1106 CMD(assoc, ASSOCIATE);
1107 CMD(deauth, DEAUTHENTICATE);
1108 CMD(disassoc, DISASSOCIATE);
04a773ad 1109 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1110 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1111 CMD(set_pmksa, SET_PMKSA);
1112 CMD(del_pmksa, DEL_PMKSA);
1113 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1114 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1115 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1116 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1117 CMD(mgmt_tx, FRAME);
f7ca38df 1118 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1119 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1120 i++;
9360ffd1
DM		 1121 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1122 goto nla_put_failure;
463d0183 1123 }
e8c9bd5b 1124 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1125 dev->ops->join_mesh) {
aa430da4
JB		 1126 i++;
1127 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1128 goto nla_put_failure;
1129 }
e8347eba 1130 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1131 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1132 CMD(tdls_mgmt, TDLS_MGMT);
1133 CMD(tdls_oper, TDLS_OPER);
1134 }
807f8a8c
LC		 1135 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1136 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1137 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1138 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1139 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1140 i++;
9360ffd1
DM		 1141 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1142 goto nla_put_failure;
5e760230 1143 }
98104fde 1144 CMD(start_p2p_device, START_P2P_DEVICE);
f4e583c8 1145 CMD(set_mcast_rate, SET_MCAST_RATE);
8fdc621d 1146
4745fc09
KV		 1147#ifdef CONFIG_NL80211_TESTMODE
1148 CMD(testmode_cmd, TESTMODE);
1149#endif
1150
8fdc621d 1151#undef CMD
b23aa676 1152
6829c878 1153 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1154 i++;
9360ffd1
DM		 1155 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1156 goto nla_put_failure;
b23aa676
SO		 1157 }
1158
6829c878 1159 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1160 i++;
9360ffd1
DM		 1161 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1162 goto nla_put_failure;
b23aa676
SO		 1163 }
1164
8fdc621d
JB		 1165 nla_nest_end(msg, nl_cmds);
1166
7c4ef712 1167 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1168 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1169 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1170 dev->wiphy.max_remain_on_channel_duration))
1171 goto nla_put_failure;
a293911d 1172
9360ffd1
DM		 1173 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1174 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1175 goto nla_put_failure;
f7ca38df 1176
2e161f78
JB		 1177 if (mgmt_stypes) {
1178 u16 stypes;
1179 struct nlattr *nl_ftypes, *nl_ifs;
1180 enum nl80211_iftype ift;
1181
1182 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1183 if (!nl_ifs)
1184 goto nla_put_failure;
1185
1186 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1187 nl_ftypes = nla_nest_start(msg, ift);
1188 if (!nl_ftypes)
1189 goto nla_put_failure;
1190 i = 0;
1191 stypes = mgmt_stypes[ift].tx;
1192 while (stypes) {
9360ffd1
DM		 1193 if ((stypes & 1) &&
1194 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1195 (i << 4) | IEEE80211_FTYPE_MGMT))
1196 goto nla_put_failure;
2e161f78
JB		 1197 stypes >>= 1;
1198 i++;
1199 }
1200 nla_nest_end(msg, nl_ftypes);
1201 }
1202
74b70a4e
JB		 1203 nla_nest_end(msg, nl_ifs);
1204
2e161f78
JB		 1205 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1206 if (!nl_ifs)
1207 goto nla_put_failure;
1208
1209 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1210 nl_ftypes = nla_nest_start(msg, ift);
1211 if (!nl_ftypes)
1212 goto nla_put_failure;
1213 i = 0;
1214 stypes = mgmt_stypes[ift].rx;
1215 while (stypes) {
9360ffd1
DM		 1216 if ((stypes & 1) &&
1217 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1218 (i << 4) | IEEE80211_FTYPE_MGMT))
1219 goto nla_put_failure;
2e161f78
JB		 1220 stypes >>= 1;
1221 i++;
1222 }
1223 nla_nest_end(msg, nl_ftypes);
1224 }
1225 nla_nest_end(msg, nl_ifs);
1226 }
1227
dfb89c56 1228#ifdef CONFIG_PM
ff1b6e69
JB		 1229 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1230 struct nlattr *nl_wowlan;
1231
1232 nl_wowlan = nla_nest_start(msg,
1233 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1234 if (!nl_wowlan)
1235 goto nla_put_failure;
1236
9360ffd1
DM		 1237 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1238 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1239 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1240 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1241 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1242 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1243 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1244 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1245 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1246 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1247 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1248 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1249 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1250 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1251 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1253 goto nla_put_failure;
ff1b6e69
JB		 1254 if (dev->wiphy.wowlan.n_patterns) {
1255 struct nl80211_wowlan_pattern_support pat = {
1256 .max_patterns = dev->wiphy.wowlan.n_patterns,
1257 .min_pattern_len =
1258 dev->wiphy.wowlan.pattern_min_len,
1259 .max_pattern_len =
1260 dev->wiphy.wowlan.pattern_max_len,
bb92d199
AK		 1261 .max_pkt_offset =
1262 dev->wiphy.wowlan.max_pkt_offset,
ff1b6e69 1263 };
9360ffd1
DM		 1264 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1265 sizeof(pat), &pat))
1266 goto nla_put_failure;
ff1b6e69
JB		 1267 }
1268
1269 nla_nest_end(msg, nl_wowlan);
1270 }
dfb89c56 1271#endif
ff1b6e69 1272
7527a782
JB		 1273 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1274 dev->wiphy.software_iftypes))
1275 goto nla_put_failure;
1276
1277 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1278 goto nla_put_failure;
1279
9360ffd1
DM		 1280 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1281 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1282 dev->wiphy.ap_sme_capa))
1283 goto nla_put_failure;
562a7480 1284
9360ffd1
DM		 1285 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1286 dev->wiphy.features))
1287 goto nla_put_failure;
1f074bd8 1288
9360ffd1
DM		 1289 if (dev->wiphy.ht_capa_mod_mask &&
1290 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1291 sizeof(*dev->wiphy.ht_capa_mod_mask),
1292 dev->wiphy.ht_capa_mod_mask))
1293 goto nla_put_failure;
7e7c8926 1294
77765eaf
VT		 1295 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1296 dev->wiphy.max_acl_mac_addrs &&
1297 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1298 dev->wiphy.max_acl_mac_addrs))
1299 goto nla_put_failure;
a50df0c4 1300
55682965
JB		 1301 return genlmsg_end(msg, hdr);
1302
1303 nla_put_failure:
bc3ed28c
TG		 1304 genlmsg_cancel(msg, hdr);
1305 return -EMSGSIZE;
55682965
JB		 1306}
1307
1308static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1309{
645e77de 1310 int idx = 0, ret;
55682965
JB		 1311 int start = cb->args[0];
1312 struct cfg80211_registered_device *dev;
1313
a1794390 1314 mutex_lock(&cfg80211_mutex);
79c97e97 1315 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1316 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1317 continue;
b4637271 1318 if (++idx <= start)
55682965 1319 continue;
645e77de
JB		 1320 ret = nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1321 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1322 dev);
1323 if (ret < 0) {
1324 /*
1325 * If sending the wiphy data didn't fit (ENOBUFS or
1326 * EMSGSIZE returned), this SKB is still empty (so
1327 * it's not too big because another wiphy dataset is
1328 * already in the skb) and we've not tried to adjust
1329 * the dump allocation yet ... then adjust the alloc
1330 * size to be bigger, and return 1 but with the empty
1331 * skb. This results in an empty message being RX'ed
1332 * in userspace, but that is ignored.
1333 *
1334 * We can then retry with the larger buffer.
1335 */
1336 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1337 !skb->len &&
1338 cb->min_dump_alloc < 4096) {
1339 cb->min_dump_alloc = 4096;
1340 mutex_unlock(&cfg80211_mutex);
1341 return 1;
1342 }
b4637271 1343 idx--;
55682965 1344 break;
b4637271 1345 }
55682965 1346 }
a1794390 1347 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1348
1349 cb->args[0] = idx;
1350
1351 return skb->len;
1352}
1353
1354static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1355{
1356 struct sk_buff *msg;
4c476991 1357 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1358
645e77de 1359 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1360 if (!msg)
4c476991 1361 return -ENOMEM;
55682965 1362
15e47304 1363 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1364 nlmsg_free(msg);
1365 return -ENOBUFS;
1366 }
55682965 1367
134e6375 1368 return genlmsg_reply(msg, info);
55682965
JB		 1369}
1370
31888487
JM		 1371static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1372 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1373 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1374 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1375 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1376 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1377};
1378
1379static int parse_txq_params(struct nlattr *tb[],
1380 struct ieee80211_txq_params *txq_params)
1381{
a3304b0a 1382 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1383 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1384 !tb[NL80211_TXQ_ATTR_AIFS])
1385 return -EINVAL;
1386
a3304b0a 1387 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1388 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1389 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1390 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1391 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1392
a3304b0a
JB		 1393 if (txq_params->ac >= NL80211_NUM_ACS)
1394 return -EINVAL;
1395
31888487
JM		 1396 return 0;
1397}
1398
f444de05
JB		 1399static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1400{
1401 /*
cc1d2806
JB		 1402 * You can only set the channel explicitly for WDS interfaces,
1403 * all others have their channel managed via their respective
1404 * "establish a connection" command (connect, join, ...)
1405 *
1406 * For AP/GO and mesh mode, the channel can be set with the
1407 * channel userspace API, but is only stored and passed to the
1408 * low-level driver when the AP starts or the mesh is joined.
1409 * This is for backward compatibility, userspace can also give
1410 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1411 *
1412 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1413 * whatever else is going on, so they have their own special
1414 * operation to set the monitor channel if possible.
f444de05
JB		 1415 */
1416 return !wdev ||
1417 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1418 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1419 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1420 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1421}
1422
683b6d3b
JB		 1423static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1424 struct genl_info *info,
1425 struct cfg80211_chan_def *chandef)
1426{
dbeca2ea 1427 u32 control_freq;
683b6d3b
JB		 1428
1429 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1430 return -EINVAL;
1431
1432 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1433
1434 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1435 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1436 chandef->center_freq1 = control_freq;
1437 chandef->center_freq2 = 0;
683b6d3b
JB		 1438
1439 /* Primary channel not allowed */
1440 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1441 return -EINVAL;
1442
3d9d1d66
JB		 1443 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1444 enum nl80211_channel_type chantype;
1445
1446 chantype = nla_get_u32(
1447 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1448
1449 switch (chantype) {
1450 case NL80211_CHAN_NO_HT:
1451 case NL80211_CHAN_HT20:
1452 case NL80211_CHAN_HT40PLUS:
1453 case NL80211_CHAN_HT40MINUS:
1454 cfg80211_chandef_create(chandef, chandef->chan,
1455 chantype);
1456 break;
1457 default:
1458 return -EINVAL;
1459 }
1460 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1461 chandef->width =
1462 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1463 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1464 chandef->center_freq1 =
1465 nla_get_u32(
1466 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1467 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1468 chandef->center_freq2 =
1469 nla_get_u32(
1470 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1471 }
1472
9f5e8f6e 1473 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1474 return -EINVAL;
1475
9f5e8f6e
JB		 1476 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1477 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1478 return -EINVAL;
1479
683b6d3b
JB		 1480 return 0;
1481}
1482
f444de05
JB		 1483static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1484 struct wireless_dev *wdev,
1485 struct genl_info *info)
1486{
683b6d3b 1487 struct cfg80211_chan_def chandef;
f444de05 1488 int result;
e8c9bd5b
JB		 1489 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1490
1491 if (wdev)
1492 iftype = wdev->iftype;
f444de05 1493
f444de05
JB		 1494 if (!nl80211_can_set_dev_channel(wdev))
1495 return -EOPNOTSUPP;
1496
683b6d3b
JB		 1497 result = nl80211_parse_chandef(rdev, info, &chandef);
1498 if (result)
1499 return result;
f444de05
JB		 1500
1501 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1502 switch (iftype) {
aa430da4
JB		 1503 case NL80211_IFTYPE_AP:
1504 case NL80211_IFTYPE_P2P_GO:
1505 if (wdev->beacon_interval) {
1506 result = -EBUSY;
1507 break;
1508 }
683b6d3b 1509 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1510 result = -EINVAL;
1511 break;
1512 }
683b6d3b 1513 wdev->preset_chandef = chandef;
aa430da4
JB		 1514 result = 0;
1515 break;
cc1d2806 1516 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1517 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1518 break;
e8c9bd5b 1519 case NL80211_IFTYPE_MONITOR:
683b6d3b 1520 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1521 break;
aa430da4 1522 default:
e8c9bd5b 1523 result = -EINVAL;
f444de05
JB		 1524 }
1525 mutex_unlock(&rdev->devlist_mtx);
1526
1527 return result;
1528}
1529
1530static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1531{
4c476991
JB		 1532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1533 struct net_device *netdev = info->user_ptr[1];
f444de05 1534
4c476991 1535 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1536}
1537
e8347eba
BJ		 1538static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1539{
43b19952
JB		 1540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1541 struct net_device *dev = info->user_ptr[1];
1542 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1543 const u8 *bssid;
e8347eba
BJ		 1544
1545 if (!info->attrs[NL80211_ATTR_MAC])
1546 return -EINVAL;
1547
43b19952
JB		 1548 if (netif_running(dev))
1549 return -EBUSY;
e8347eba 1550
43b19952
JB		 1551 if (!rdev->ops->set_wds_peer)
1552 return -EOPNOTSUPP;
e8347eba 1553
43b19952
JB		 1554 if (wdev->iftype != NL80211_IFTYPE_WDS)
1555 return -EOPNOTSUPP;
e8347eba
BJ		 1556
1557 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1558 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1559}
1560
1561
55682965
JB		 1562static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1563{
1564 struct cfg80211_registered_device *rdev;
f444de05
JB		 1565 struct net_device *netdev = NULL;
1566 struct wireless_dev *wdev;
a1e567c8 1567 int result = 0, rem_txq_params = 0;
31888487 1568 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1569 u32 changed;
1570 u8 retry_short = 0, retry_long = 0;
1571 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1572 u8 coverage_class = 0;
55682965 1573
f444de05
JB		 1574 /*
1575 * Try to find the wiphy and netdev. Normally this
1576 * function shouldn't need the netdev, but this is
1577 * done for backward compatibility -- previously
1578 * setting the channel was done per wiphy, but now
1579 * it is per netdev. Previous userland like hostapd
1580 * also passed a netdev to set_wiphy, so that it is
1581 * possible to let that go to the right netdev!
1582 */
4bbf4d56
JB		 1583 mutex_lock(&cfg80211_mutex);
1584
f444de05
JB		 1585 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1586 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1587
1588 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1589 if (netdev && netdev->ieee80211_ptr) {
1590 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1591 mutex_lock(&rdev->mtx);
1592 } else
1593 netdev = NULL;
4bbf4d56
JB		 1594 }
1595
f444de05 1596 if (!netdev) {
878d9ec7
JB		 1597 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1598 info->attrs);
f444de05
JB		 1599 if (IS_ERR(rdev)) {
1600 mutex_unlock(&cfg80211_mutex);
4c476991 1601 return PTR_ERR(rdev);
f444de05
JB		 1602 }
1603 wdev = NULL;
1604 netdev = NULL;
1605 result = 0;
1606
1607 mutex_lock(&rdev->mtx);
71fe96bf 1608 } else
f444de05 1609 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1610
1611 /*
1612 * end workaround code, by now the rdev is available
1613 * and locked, and wdev may or may not be NULL.
1614 */
4bbf4d56
JB		 1615
1616 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1617 result = cfg80211_dev_rename(
1618 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1619
1620 mutex_unlock(&cfg80211_mutex);
1621
1622 if (result)
1623 goto bad_res;
31888487
JM		 1624
1625 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1626 struct ieee80211_txq_params txq_params;
1627 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1628
1629 if (!rdev->ops->set_txq_params) {
1630 result = -EOPNOTSUPP;
1631 goto bad_res;
1632 }
1633
f70f01c2
EP		 1634 if (!netdev) {
1635 result = -EINVAL;
1636 goto bad_res;
1637 }
1638
133a3ff2
JB		 1639 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1640 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1641 result = -EINVAL;
1642 goto bad_res;
1643 }
1644
2b5f8b0b
JB		 1645 if (!netif_running(netdev)) {
1646 result = -ENETDOWN;
1647 goto bad_res;
1648 }
1649
31888487
JM		 1650 nla_for_each_nested(nl_txq_params,
1651 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1652 rem_txq_params) {
1653 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1654 nla_data(nl_txq_params),
1655 nla_len(nl_txq_params),
1656 txq_params_policy);
1657 result = parse_txq_params(tb, &txq_params);
1658 if (result)
1659 goto bad_res;
1660
e35e4d28
HG		 1661 result = rdev_set_txq_params(rdev, netdev,
1662 &txq_params);
31888487
JM		 1663 if (result)
1664 goto bad_res;
1665 }
1666 }
55682965 1667
72bdcf34 1668 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1669 result = __nl80211_set_channel(rdev,
1670 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1671 info);
72bdcf34
JM		 1672 if (result)
1673 goto bad_res;
1674 }
1675
98d2ff8b 1676 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1677 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1678 enum nl80211_tx_power_setting type;
1679 int idx, mbm = 0;
1680
c8442118
JB		 1681 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1682 txp_wdev = NULL;
1683
98d2ff8b 1684 if (!rdev->ops->set_tx_power) {
60ea385f 1685 result = -EOPNOTSUPP;
98d2ff8b
JO		 1686 goto bad_res;
1687 }
1688
1689 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1690 type = nla_get_u32(info->attrs[idx]);
1691
1692 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1693 (type != NL80211_TX_POWER_AUTOMATIC)) {
1694 result = -EINVAL;
1695 goto bad_res;
1696 }
1697
1698 if (type != NL80211_TX_POWER_AUTOMATIC) {
1699 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1700 mbm = nla_get_u32(info->attrs[idx]);
1701 }
1702
c8442118 1703 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1704 if (result)
1705 goto bad_res;
1706 }
1707
afe0cbf8
BR		 1708 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1709 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1710 u32 tx_ant, rx_ant;
7f531e03
BR		 1711 if ((!rdev->wiphy.available_antennas_tx &&
1712 !rdev->wiphy.available_antennas_rx) ||
1713 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1714 result = -EOPNOTSUPP;
1715 goto bad_res;
1716 }
1717
1718 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1719 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1720
a7ffac95 1721 /* reject antenna configurations which don't match the
7f531e03
BR		 1722 * available antenna masks, except for the "all" mask */
1723 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1724 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1725 result = -EINVAL;
1726 goto bad_res;
1727 }
1728
7f531e03
BR		 1729 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1730 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1731
e35e4d28 1732 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1733 if (result)
1734 goto bad_res;
1735 }
1736
b9a5f8ca
JM		 1737 changed = 0;
1738
1739 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1740 retry_short = nla_get_u8(
1741 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1742 if (retry_short == 0) {
1743 result = -EINVAL;
1744 goto bad_res;
1745 }
1746 changed |= WIPHY_PARAM_RETRY_SHORT;
1747 }
1748
1749 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1750 retry_long = nla_get_u8(
1751 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1752 if (retry_long == 0) {
1753 result = -EINVAL;
1754 goto bad_res;
1755 }
1756 changed |= WIPHY_PARAM_RETRY_LONG;
1757 }
1758
1759 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1760 frag_threshold = nla_get_u32(
1761 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1762 if (frag_threshold < 256) {
1763 result = -EINVAL;
1764 goto bad_res;
1765 }
1766 if (frag_threshold != (u32) -1) {
1767 /*
1768 * Fragments (apart from the last one) are required to
1769 * have even length. Make the fragmentation code
1770 * simpler by stripping LSB should someone try to use
1771 * odd threshold value.
1772 */
1773 frag_threshold &= ~0x1;
1774 }
1775 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1776 }
1777
1778 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1779 rts_threshold = nla_get_u32(
1780 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1781 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1782 }
1783
81077e82
LT		 1784 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1785 coverage_class = nla_get_u8(
1786 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1787 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1788 }
1789
b9a5f8ca
JM		 1790 if (changed) {
1791 u8 old_retry_short, old_retry_long;
1792 u32 old_frag_threshold, old_rts_threshold;
81077e82 1793 u8 old_coverage_class;
b9a5f8ca
JM		 1794
1795 if (!rdev->ops->set_wiphy_params) {
1796 result = -EOPNOTSUPP;
1797 goto bad_res;
1798 }
1799
1800 old_retry_short = rdev->wiphy.retry_short;
1801 old_retry_long = rdev->wiphy.retry_long;
1802 old_frag_threshold = rdev->wiphy.frag_threshold;
1803 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1804 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1805
1806 if (changed & WIPHY_PARAM_RETRY_SHORT)
1807 rdev->wiphy.retry_short = retry_short;
1808 if (changed & WIPHY_PARAM_RETRY_LONG)
1809 rdev->wiphy.retry_long = retry_long;
1810 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1811 rdev->wiphy.frag_threshold = frag_threshold;
1812 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1813 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1814 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1815 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1816
e35e4d28 1817 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1818 if (result) {
1819 rdev->wiphy.retry_short = old_retry_short;
1820 rdev->wiphy.retry_long = old_retry_long;
1821 rdev->wiphy.frag_threshold = old_frag_threshold;
1822 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1823 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1824 }
1825 }
72bdcf34 1826
306d6112 1827 bad_res:
4bbf4d56 1828 mutex_unlock(&rdev->mtx);
f444de05
JB		 1829 if (netdev)
1830 dev_put(netdev);
55682965
JB		 1831 return result;
1832}
1833
71bbc994
JB		 1834static inline u64 wdev_id(struct wireless_dev *wdev)
1835{
1836 return (u64)wdev->identifier |
1837 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1838}
55682965 1839
683b6d3b
JB		 1840static int nl80211_send_chandef(struct sk_buff *msg,
1841 struct cfg80211_chan_def *chandef)
1842{
9f5e8f6e 1843 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 1844
683b6d3b
JB		 1845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1846 chandef->chan->center_freq))
1847 return -ENOBUFS;
3d9d1d66
JB		 1848 switch (chandef->width) {
1849 case NL80211_CHAN_WIDTH_20_NOHT:
1850 case NL80211_CHAN_WIDTH_20:
1851 case NL80211_CHAN_WIDTH_40:
1852 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1853 cfg80211_get_chandef_type(chandef)))
1854 return -ENOBUFS;
1855 break;
1856 default:
1857 break;
1858 }
1859 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1860 return -ENOBUFS;
1861 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1862 return -ENOBUFS;
1863 if (chandef->center_freq2 &&
1864 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1865 return -ENOBUFS;
1866 return 0;
1867}
1868
15e47304 1869static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1870 struct cfg80211_registered_device *rdev,
72fb2abc 1871 struct wireless_dev *wdev)
55682965 1872{
72fb2abc 1873 struct net_device *dev = wdev->netdev;
55682965
JB		 1874 void *hdr;
1875
15e47304 1876 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1877 if (!hdr)
1878 return -1;
1879
72fb2abc
JB		 1880 if (dev &&
1881 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1882 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1883 goto nla_put_failure;
1884
1885 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1886 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1887 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1888 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1889 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1890 rdev->devlist_generation ^
1891 (cfg80211_rdev_list_generation << 2)))
1892 goto nla_put_failure;
f5ea9120 1893
5b7ccaf3 1894 if (rdev->ops->get_channel) {
683b6d3b
JB		 1895 int ret;
1896 struct cfg80211_chan_def chandef;
1897
1898 ret = rdev_get_channel(rdev, wdev, &chandef);
1899 if (ret == 0) {
1900 if (nl80211_send_chandef(msg, &chandef))
1901 goto nla_put_failure;
1902 }
d91df0e3
PF		 1903 }
1904
b84e7a05
AQ		 1905 if (wdev->ssid_len) {
1906 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1907 goto nla_put_failure;
1908 }
1909
55682965
JB		 1910 return genlmsg_end(msg, hdr);
1911
1912 nla_put_failure:
bc3ed28c
TG		 1913 genlmsg_cancel(msg, hdr);
1914 return -EMSGSIZE;
55682965
JB		 1915}
1916
1917static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1918{
1919 int wp_idx = 0;
1920 int if_idx = 0;
1921 int wp_start = cb->args[0];
1922 int if_start = cb->args[1];
f5ea9120 1923 struct cfg80211_registered_device *rdev;
55682965
JB		 1924 struct wireless_dev *wdev;
1925
a1794390 1926 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1927 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1928 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1929 continue;
bba95fef
JB		 1930 if (wp_idx < wp_start) {
1931 wp_idx++;
55682965 1932 continue;
bba95fef 1933 }
55682965
JB		 1934 if_idx = 0;
1935
f5ea9120 1936 mutex_lock(&rdev->devlist_mtx);
89a54e48 1937 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1938 if (if_idx < if_start) {
1939 if_idx++;
55682965 1940 continue;
bba95fef 1941 }
15e47304 1942 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1943 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1944 rdev, wdev) < 0) {
f5ea9120 1945 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1946 goto out;
1947 }
1948 if_idx++;
55682965 1949 }
f5ea9120 1950 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1951
1952 wp_idx++;
55682965 1953 }
bba95fef 1954 out:
a1794390 1955 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1956
1957 cb->args[0] = wp_idx;
1958 cb->args[1] = if_idx;
1959
1960 return skb->len;
1961}
1962
1963static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1964{
1965 struct sk_buff *msg;
4c476991 1966 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1967 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1968
fd2120ca 1969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1970 if (!msg)
4c476991 1971 return -ENOMEM;
55682965 1972
15e47304 1973 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1974 dev, wdev) < 0) {
4c476991
JB		 1975 nlmsg_free(msg);
1976 return -ENOBUFS;
1977 }
55682965 1978
134e6375 1979 return genlmsg_reply(msg, info);
55682965
JB		 1980}
1981
66f7ac50
MW		 1982static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1983 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1984 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1985 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1986 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1987 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1988};
1989
1990static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1991{
1992 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1993 int flag;
1994
1995 *mntrflags = 0;
1996
1997 if (!nla)
1998 return -EINVAL;
1999
2000 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2001 nla, mntr_flags_policy))
2002 return -EINVAL;
2003
2004 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2005 if (flags[flag])
2006 *mntrflags |= (1<<flag);
2007
2008 return 0;
2009}
2010
9bc383de 2011static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2012 struct net_device *netdev, u8 use_4addr,
2013 enum nl80211_iftype iftype)
9bc383de 2014{
ad4bb6f8 2015 if (!use_4addr) {
f350a0a8 2016 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2017 return -EBUSY;
9bc383de 2018 return 0;
ad4bb6f8 2019 }
9bc383de
JB		 2020
2021 switch (iftype) {
2022 case NL80211_IFTYPE_AP_VLAN:
2023 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2024 return 0;
2025 break;
2026 case NL80211_IFTYPE_STATION:
2027 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2028 return 0;
2029 break;
2030 default:
2031 break;
2032 }
2033
2034 return -EOPNOTSUPP;
2035}
2036
55682965
JB		 2037static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2038{
4c476991 2039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2040 struct vif_params params;
e36d56b6 2041 int err;
04a773ad 2042 enum nl80211_iftype otype, ntype;
4c476991 2043 struct net_device *dev = info->user_ptr[1];
92ffe055 2044 u32 _flags, *flags = NULL;
ac7f9cfa 2045 bool change = false;
55682965 2046
2ec600d6
LCC		 2047 memset(&params, 0, sizeof(params));
2048
04a773ad 2049 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2050
723b038d 2051 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2052 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2053 if (otype != ntype)
ac7f9cfa 2054 change = true;
4c476991
JB		 2055 if (ntype > NL80211_IFTYPE_MAX)
2056 return -EINVAL;
723b038d
JB		 2057 }
2058
92ffe055 2059 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2060 struct wireless_dev *wdev = dev->ieee80211_ptr;
2061
4c476991
JB		 2062 if (ntype != NL80211_IFTYPE_MESH_POINT)
2063 return -EINVAL;
29cbe68c
JB		 2064 if (netif_running(dev))
2065 return -EBUSY;
2066
2067 wdev_lock(wdev);
2068 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2069 IEEE80211_MAX_MESH_ID_LEN);
2070 wdev->mesh_id_up_len =
2071 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2072 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2073 wdev->mesh_id_up_len);
2074 wdev_unlock(wdev);
2ec600d6
LCC		 2075 }
2076
8b787643
FF		 2077 if (info->attrs[NL80211_ATTR_4ADDR]) {
2078 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2079 change = true;
ad4bb6f8 2080 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2081 if (err)
4c476991 2082 return err;
8b787643
FF		 2083 } else {
2084 params.use_4addr = -1;
2085 }
2086
92ffe055 2087 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2088 if (ntype != NL80211_IFTYPE_MONITOR)
2089 return -EINVAL;
92ffe055
JB		 2090 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2091 &_flags);
ac7f9cfa 2092 if (err)
4c476991 2093 return err;
ac7f9cfa
JB		 2094
2095 flags = &_flags;
2096 change = true;
92ffe055 2097 }
3b85875a 2098
ac7f9cfa 2099 if (change)
3d54d255 2100 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2101 else
2102 err = 0;
60719ffd 2103
9bc383de
JB		 2104 if (!err && params.use_4addr != -1)
2105 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2106
55682965
JB		 2107 return err;
2108}
2109
2110static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2111{
4c476991 2112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2113 struct vif_params params;
84efbb84 2114 struct wireless_dev *wdev;
1c90f9d4 2115 struct sk_buff *msg;
55682965
JB		 2116 int err;
2117 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2118 u32 flags;
55682965 2119
2ec600d6
LCC		 2120 memset(&params, 0, sizeof(params));
2121
55682965
JB		 2122 if (!info->attrs[NL80211_ATTR_IFNAME])
2123 return -EINVAL;
2124
2125 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2126 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2127 if (type > NL80211_IFTYPE_MAX)
2128 return -EINVAL;
2129 }
2130
79c97e97 2131 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2132 !(rdev->wiphy.interface_modes & (1 << type)))
2133 return -EOPNOTSUPP;
55682965 2134
1c18f145
AS		 2135 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2136 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2137 ETH_ALEN);
2138 if (!is_valid_ether_addr(params.macaddr))
2139 return -EADDRNOTAVAIL;
2140 }
2141
9bc383de 2142 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2143 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2144 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2145 if (err)
4c476991 2146 return err;
9bc383de 2147 }
8b787643 2148
1c90f9d4
JB		 2149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2150 if (!msg)
2151 return -ENOMEM;
2152
66f7ac50
MW		 2153 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2154 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2155 &flags);
e35e4d28
HG		 2156 wdev = rdev_add_virtual_intf(rdev,
2157 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2158 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2159 if (IS_ERR(wdev)) {
2160 nlmsg_free(msg);
84efbb84 2161 return PTR_ERR(wdev);
1c90f9d4 2162 }
2ec600d6 2163
98104fde
JB		 2164 switch (type) {
2165 case NL80211_IFTYPE_MESH_POINT:
2166 if (!info->attrs[NL80211_ATTR_MESH_ID])
2167 break;
29cbe68c
JB		 2168 wdev_lock(wdev);
2169 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2170 IEEE80211_MAX_MESH_ID_LEN);
2171 wdev->mesh_id_up_len =
2172 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2173 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2174 wdev->mesh_id_up_len);
2175 wdev_unlock(wdev);
98104fde
JB		 2176 break;
2177 case NL80211_IFTYPE_P2P_DEVICE:
2178 /*
2179 * P2P Device doesn't have a netdev, so doesn't go
2180 * through the netdev notifier and must be added here
2181 */
2182 mutex_init(&wdev->mtx);
2183 INIT_LIST_HEAD(&wdev->event_list);
2184 spin_lock_init(&wdev->event_lock);
2185 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2186 spin_lock_init(&wdev->mgmt_registrations_lock);
2187
2188 mutex_lock(&rdev->devlist_mtx);
2189 wdev->identifier = ++rdev->wdev_id;
2190 list_add_rcu(&wdev->list, &rdev->wdev_list);
2191 rdev->devlist_generation++;
2192 mutex_unlock(&rdev->devlist_mtx);
2193 break;
2194 default:
2195 break;
29cbe68c
JB		 2196 }
2197
15e47304 2198 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2199 rdev, wdev) < 0) {
2200 nlmsg_free(msg);
2201 return -ENOBUFS;
2202 }
2203
2204 return genlmsg_reply(msg, info);
55682965
JB		 2205}
2206
2207static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2208{
4c476991 2209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2210 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2211
4c476991
JB		 2212 if (!rdev->ops->del_virtual_intf)
2213 return -EOPNOTSUPP;
55682965 2214
84efbb84
JB		 2215 /*
2216 * If we remove a wireless device without a netdev then clear
2217 * user_ptr[1] so that nl80211_post_doit won't dereference it
2218 * to check if it needs to do dev_put(). Otherwise it crashes
2219 * since the wdev has been freed, unlike with a netdev where
2220 * we need the dev_put() for the netdev to really be freed.
2221 */
2222 if (!wdev->netdev)
2223 info->user_ptr[1] = NULL;
2224
e35e4d28 2225 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2226}
2227
1d9d9213
SW		 2228static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2229{
2230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2231 struct net_device *dev = info->user_ptr[1];
2232 u16 noack_map;
2233
2234 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2235 return -EINVAL;
2236
2237 if (!rdev->ops->set_noack_map)
2238 return -EOPNOTSUPP;
2239
2240 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2241
e35e4d28 2242 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2243}
2244
41ade00f
JB		 2245struct get_key_cookie {
2246 struct sk_buff *msg;
2247 int error;
b9454e83 2248 int idx;
41ade00f
JB		 2249};
2250
2251static void get_key_callback(void *c, struct key_params *params)
2252{
b9454e83 2253 struct nlattr *key;
41ade00f
JB		 2254 struct get_key_cookie *cookie = c;
2255
9360ffd1
DM		 2256 if ((params->key &&
2257 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2258 params->key_len, params->key)) ||
2259 (params->seq &&
2260 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2261 params->seq_len, params->seq)) ||
2262 (params->cipher &&
2263 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2264 params->cipher)))
2265 goto nla_put_failure;
41ade00f 2266
b9454e83
JB		 2267 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2268 if (!key)
2269 goto nla_put_failure;
2270
9360ffd1
DM		 2271 if ((params->key &&
2272 nla_put(cookie->msg, NL80211_KEY_DATA,
2273 params->key_len, params->key)) ||
2274 (params->seq &&
2275 nla_put(cookie->msg, NL80211_KEY_SEQ,
2276 params->seq_len, params->seq)) ||
2277 (params->cipher &&
2278 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2279 params->cipher)))
2280 goto nla_put_failure;
b9454e83 2281
9360ffd1
DM		 2282 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2283 goto nla_put_failure;
b9454e83
JB		 2284
2285 nla_nest_end(cookie->msg, key);
2286
41ade00f
JB		 2287 return;
2288 nla_put_failure:
2289 cookie->error = 1;
2290}
2291
2292static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2293{
4c476991 2294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2295 int err;
4c476991 2296 struct net_device *dev = info->user_ptr[1];
41ade00f 2297 u8 key_idx = 0;
e31b8213
JB		 2298 const u8 *mac_addr = NULL;
2299 bool pairwise;
41ade00f
JB		 2300 struct get_key_cookie cookie = {
2301 .error = 0,
2302 };
2303 void *hdr;
2304 struct sk_buff *msg;
2305
2306 if (info->attrs[NL80211_ATTR_KEY_IDX])
2307 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2308
3cfcf6ac 2309 if (key_idx > 5)
41ade00f
JB		 2310 return -EINVAL;
2311
2312 if (info->attrs[NL80211_ATTR_MAC])
2313 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2314
e31b8213
JB		 2315 pairwise = !!mac_addr;
2316 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2317 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2318 if (kt >= NUM_NL80211_KEYTYPES)
2319 return -EINVAL;
2320 if (kt != NL80211_KEYTYPE_GROUP &&
2321 kt != NL80211_KEYTYPE_PAIRWISE)
2322 return -EINVAL;
2323 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2324 }
2325
4c476991
JB		 2326 if (!rdev->ops->get_key)
2327 return -EOPNOTSUPP;
41ade00f 2328
fd2120ca 2329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2330 if (!msg)
2331 return -ENOMEM;
41ade00f 2332
15e47304 2333 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2334 NL80211_CMD_NEW_KEY);
4c476991
JB		 2335 if (IS_ERR(hdr))
2336 return PTR_ERR(hdr);
41ade00f
JB		 2337
2338 cookie.msg = msg;
b9454e83 2339 cookie.idx = key_idx;
41ade00f 2340
9360ffd1
DM		 2341 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2342 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2343 goto nla_put_failure;
2344 if (mac_addr &&
2345 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2346 goto nla_put_failure;
41ade00f 2347
e31b8213
JB		 2348 if (pairwise && mac_addr &&
2349 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2350 return -ENOENT;
2351
e35e4d28
HG		 2352 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2353 get_key_callback);
41ade00f
JB		 2354
2355 if (err)
6c95e2a2 2356 goto free_msg;
41ade00f
JB		 2357
2358 if (cookie.error)
2359 goto nla_put_failure;
2360
2361 genlmsg_end(msg, hdr);
4c476991 2362 return genlmsg_reply(msg, info);
41ade00f
JB		 2363
2364 nla_put_failure:
2365 err = -ENOBUFS;
6c95e2a2 2366 free_msg:
41ade00f 2367 nlmsg_free(msg);
41ade00f
JB		 2368 return err;
2369}
2370
2371static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2372{
4c476991 2373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2374 struct key_parse key;
41ade00f 2375 int err;
4c476991 2376 struct net_device *dev = info->user_ptr[1];
41ade00f 2377
b9454e83
JB		 2378 err = nl80211_parse_key(info, &key);
2379 if (err)
2380 return err;
41ade00f 2381
b9454e83 2382 if (key.idx < 0)
41ade00f
JB		 2383 return -EINVAL;
2384
b9454e83
JB		 2385 /* only support setting default key */
2386 if (!key.def && !key.defmgmt)
41ade00f
JB		 2387 return -EINVAL;
2388
dbd2fd65 2389 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2390
dbd2fd65
JB		 2391 if (key.def) {
2392 if (!rdev->ops->set_default_key) {
2393 err = -EOPNOTSUPP;
2394 goto out;
2395 }
41ade00f 2396
dbd2fd65
JB		 2397 err = nl80211_key_allowed(dev->ieee80211_ptr);
2398 if (err)
2399 goto out;
2400
e35e4d28 2401 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2402 key.def_uni, key.def_multi);
2403
2404 if (err)
2405 goto out;
fffd0934 2406
3d23e349 2407#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2408 dev->ieee80211_ptr->wext.default_key = key.idx;
2409#endif
2410 } else {
2411 if (key.def_uni || !key.def_multi) {
2412 err = -EINVAL;
2413 goto out;
2414 }
2415
2416 if (!rdev->ops->set_default_mgmt_key) {
2417 err = -EOPNOTSUPP;
2418 goto out;
2419 }
2420
2421 err = nl80211_key_allowed(dev->ieee80211_ptr);
2422 if (err)
2423 goto out;
2424
e35e4d28 2425 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2426 if (err)
2427 goto out;
2428
2429#ifdef CONFIG_CFG80211_WEXT
2430 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2431#endif
dbd2fd65
JB		 2432 }
2433
2434 out:
fffd0934 2435 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2436
41ade00f
JB		 2437 return err;
2438}
2439
2440static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2441{
4c476991 2442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2443 int err;
4c476991 2444 struct net_device *dev = info->user_ptr[1];
b9454e83 2445 struct key_parse key;
e31b8213 2446 const u8 *mac_addr = NULL;
41ade00f 2447
b9454e83
JB		 2448 err = nl80211_parse_key(info, &key);
2449 if (err)
2450 return err;
41ade00f 2451
b9454e83 2452 if (!key.p.key)
41ade00f
JB		 2453 return -EINVAL;
2454
41ade00f
JB		 2455 if (info->attrs[NL80211_ATTR_MAC])
2456 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2457
e31b8213
JB		 2458 if (key.type == -1) {
2459 if (mac_addr)
2460 key.type = NL80211_KEYTYPE_PAIRWISE;
2461 else
2462 key.type = NL80211_KEYTYPE_GROUP;
2463 }
2464
2465 /* for now */
2466 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2467 key.type != NL80211_KEYTYPE_GROUP)
2468 return -EINVAL;
2469
4c476991
JB		 2470 if (!rdev->ops->add_key)
2471 return -EOPNOTSUPP;
25e47c18 2472
e31b8213
JB		 2473 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2474 key.type == NL80211_KEYTYPE_PAIRWISE,
2475 mac_addr))
4c476991 2476 return -EINVAL;
41ade00f 2477
fffd0934
JB		 2478 wdev_lock(dev->ieee80211_ptr);
2479 err = nl80211_key_allowed(dev->ieee80211_ptr);
2480 if (!err)
e35e4d28
HG		 2481 err = rdev_add_key(rdev, dev, key.idx,
2482 key.type == NL80211_KEYTYPE_PAIRWISE,
2483 mac_addr, &key.p);
fffd0934 2484 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2485
41ade00f
JB		 2486 return err;
2487}
2488
2489static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2490{
4c476991 2491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2492 int err;
4c476991 2493 struct net_device *dev = info->user_ptr[1];
41ade00f 2494 u8 *mac_addr = NULL;
b9454e83 2495 struct key_parse key;
41ade00f 2496
b9454e83
JB		 2497 err = nl80211_parse_key(info, &key);
2498 if (err)
2499 return err;
41ade00f
JB		 2500
2501 if (info->attrs[NL80211_ATTR_MAC])
2502 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2503
e31b8213
JB		 2504 if (key.type == -1) {
2505 if (mac_addr)
2506 key.type = NL80211_KEYTYPE_PAIRWISE;
2507 else
2508 key.type = NL80211_KEYTYPE_GROUP;
2509 }
2510
2511 /* for now */
2512 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2513 key.type != NL80211_KEYTYPE_GROUP)
2514 return -EINVAL;
2515
4c476991
JB		 2516 if (!rdev->ops->del_key)
2517 return -EOPNOTSUPP;
41ade00f 2518
fffd0934
JB		 2519 wdev_lock(dev->ieee80211_ptr);
2520 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2521
2522 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2523 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2524 err = -ENOENT;
2525
fffd0934 2526 if (!err)
e35e4d28
HG		 2527 err = rdev_del_key(rdev, dev, key.idx,
2528 key.type == NL80211_KEYTYPE_PAIRWISE,
2529 mac_addr);
41ade00f 2530
3d23e349 2531#ifdef CONFIG_CFG80211_WEXT
08645126 2532 if (!err) {
b9454e83 2533 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2534 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2535 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2536 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2537 }
2538#endif
fffd0934 2539 wdev_unlock(dev->ieee80211_ptr);
08645126 2540
41ade00f
JB		 2541 return err;
2542}
2543
77765eaf
VT		 2544/* This function returns an error or the number of nested attributes */
2545static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2546{
2547 struct nlattr *attr;
2548 int n_entries = 0, tmp;
2549
2550 nla_for_each_nested(attr, nl_attr, tmp) {
2551 if (nla_len(attr) != ETH_ALEN)
2552 return -EINVAL;
2553
2554 n_entries++;
2555 }
2556
2557 return n_entries;
2558}
2559
2560/*
2561 * This function parses ACL information and allocates memory for ACL data.
2562 * On successful return, the calling function is responsible to free the
2563 * ACL buffer returned by this function.
2564 */
2565static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2566 struct genl_info *info)
2567{
2568 enum nl80211_acl_policy acl_policy;
2569 struct nlattr *attr;
2570 struct cfg80211_acl_data *acl;
2571 int i = 0, n_entries, tmp;
2572
2573 if (!wiphy->max_acl_mac_addrs)
2574 return ERR_PTR(-EOPNOTSUPP);
2575
2576 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2577 return ERR_PTR(-EINVAL);
2578
2579 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2580 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2581 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2582 return ERR_PTR(-EINVAL);
2583
2584 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2585 return ERR_PTR(-EINVAL);
2586
2587 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2588 if (n_entries < 0)
2589 return ERR_PTR(n_entries);
2590
2591 if (n_entries > wiphy->max_acl_mac_addrs)
2592 return ERR_PTR(-ENOTSUPP);
2593
2594 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2595 GFP_KERNEL);
2596 if (!acl)
2597 return ERR_PTR(-ENOMEM);
2598
2599 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2600 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2601 i++;
2602 }
2603
2604 acl->n_acl_entries = n_entries;
2605 acl->acl_policy = acl_policy;
2606
2607 return acl;
2608}
2609
2610static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2611{
2612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2613 struct net_device *dev = info->user_ptr[1];
2614 struct cfg80211_acl_data *acl;
2615 int err;
2616
2617 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2618 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2619 return -EOPNOTSUPP;
2620
2621 if (!dev->ieee80211_ptr->beacon_interval)
2622 return -EINVAL;
2623
2624 acl = parse_acl_data(&rdev->wiphy, info);
2625 if (IS_ERR(acl))
2626 return PTR_ERR(acl);
2627
2628 err = rdev_set_mac_acl(rdev, dev, acl);
2629
2630 kfree(acl);
2631
2632 return err;
2633}
2634
8860020e
JB		 2635static int nl80211_parse_beacon(struct genl_info *info,
2636 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2637{
8860020e 2638 bool haveinfo = false;
ed1b6cc7 2639
9946ecfb
JM		 2640 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2641 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2642 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2643 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2644 return -EINVAL;
2645
8860020e 2646 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2647
ed1b6cc7 2648 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2649 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2650 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2651 if (!bcn->head_len)
2652 return -EINVAL;
2653 haveinfo = true;
ed1b6cc7
JB		 2654 }
2655
2656 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2657 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2658 bcn->tail_len =
ed1b6cc7 2659 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2660 haveinfo = true;
ed1b6cc7
JB		 2661 }
2662
4c476991
JB		 2663 if (!haveinfo)
2664 return -EINVAL;
3b85875a 2665
9946ecfb 2666 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2667 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2668 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2669 }
2670
2671 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2672 bcn->proberesp_ies =
9946ecfb 2673 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2674 bcn->proberesp_ies_len =
9946ecfb
JM		 2675 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2676 }
2677
2678 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2679 bcn->assocresp_ies =
9946ecfb 2680 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2681 bcn->assocresp_ies_len =
9946ecfb
JM		 2682 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2683 }
2684
00f740e1 2685 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2686 bcn->probe_resp =
00f740e1 2687 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2688 bcn->probe_resp_len =
00f740e1
AN		 2689 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2690 }
2691
8860020e
JB		 2692 return 0;
2693}
2694
46c1dd0c
FF		 2695static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2696 struct cfg80211_ap_settings *params)
2697{
2698 struct wireless_dev *wdev;
2699 bool ret = false;
2700
2701 mutex_lock(&rdev->devlist_mtx);
2702
89a54e48 2703 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2704 if (wdev->iftype != NL80211_IFTYPE_AP &&
2705 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2706 continue;
2707
683b6d3b 2708 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2709 continue;
2710
683b6d3b 2711 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2712 ret = true;
2713 break;
2714 }
2715
2716 mutex_unlock(&rdev->devlist_mtx);
2717
2718 return ret;
2719}
2720
e39e5b5e
JM		 2721static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2722 enum nl80211_auth_type auth_type,
2723 enum nl80211_commands cmd)
2724{
2725 if (auth_type > NL80211_AUTHTYPE_MAX)
2726 return false;
2727
2728 switch (cmd) {
2729 case NL80211_CMD_AUTHENTICATE:
2730 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2731 auth_type == NL80211_AUTHTYPE_SAE)
2732 return false;
2733 return true;
2734 case NL80211_CMD_CONNECT:
2735 case NL80211_CMD_START_AP:
2736 /* SAE not supported yet */
2737 if (auth_type == NL80211_AUTHTYPE_SAE)
2738 return false;
2739 return true;
2740 default:
2741 return false;
2742 }
2743}
2744
8860020e
JB		 2745static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2746{
2747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2748 struct net_device *dev = info->user_ptr[1];
2749 struct wireless_dev *wdev = dev->ieee80211_ptr;
2750 struct cfg80211_ap_settings params;
2751 int err;
04f39047 2752 u8 radar_detect_width = 0;
8860020e
JB		 2753
2754 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2755 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2756 return -EOPNOTSUPP;
2757
2758 if (!rdev->ops->start_ap)
2759 return -EOPNOTSUPP;
2760
2761 if (wdev->beacon_interval)
2762 return -EALREADY;
2763
2764 memset(&params, 0, sizeof(params));
2765
2766 /* these are required for START_AP */
2767 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2768 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2769 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2770 return -EINVAL;
2771
2772 err = nl80211_parse_beacon(info, &params.beacon);
2773 if (err)
2774 return err;
2775
2776 params.beacon_interval =
2777 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2778 params.dtim_period =
2779 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2780
2781 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2782 if (err)
2783 return err;
2784
2785 /*
2786 * In theory, some of these attributes should be required here
2787 * but since they were not used when the command was originally
2788 * added, keep them optional for old user space programs to let
2789 * them continue to work with drivers that do not need the
2790 * additional information -- drivers must check!
2791 */
2792 if (info->attrs[NL80211_ATTR_SSID]) {
2793 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2794 params.ssid_len =
2795 nla_len(info->attrs[NL80211_ATTR_SSID]);
2796 if (params.ssid_len == 0 ||
2797 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2798 return -EINVAL;
2799 }
2800
2801 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2802 params.hidden_ssid = nla_get_u32(
2803 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2804 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2805 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2806 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2807 return -EINVAL;
2808 }
2809
2810 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2811
2812 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2813 params.auth_type = nla_get_u32(
2814 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2815 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2816 NL80211_CMD_START_AP))
8860020e
JB		 2817 return -EINVAL;
2818 } else
2819 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2820
2821 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2822 NL80211_MAX_NR_CIPHER_SUITES);
2823 if (err)
2824 return err;
2825
1b658f11
VT		 2826 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2827 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2828 return -EOPNOTSUPP;
2829 params.inactivity_timeout = nla_get_u16(
2830 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2831 }
2832
53cabad7
JB		 2833 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2834 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2835 return -EINVAL;
2836 params.p2p_ctwindow =
2837 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2838 if (params.p2p_ctwindow > 127)
2839 return -EINVAL;
2840 if (params.p2p_ctwindow != 0 &&
2841 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2842 return -EINVAL;
2843 }
2844
2845 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2846 u8 tmp;
2847
2848 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2849 return -EINVAL;
2850 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2851 if (tmp > 1)
2852 return -EINVAL;
2853 params.p2p_opp_ps = tmp;
2854 if (params.p2p_opp_ps != 0 &&
2855 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2856 return -EINVAL;
2857 }
2858
aa430da4 2859 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2860 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2861 if (err)
2862 return err;
2863 } else if (wdev->preset_chandef.chan) {
2864 params.chandef = wdev->preset_chandef;
46c1dd0c 2865 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2866 return -EINVAL;
2867
683b6d3b 2868 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2869 return -EINVAL;
2870
04f39047
SW		 2871 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
2872 if (err < 0)
2873 return err;
2874 if (err) {
2875 radar_detect_width = BIT(params.chandef.width);
2876 params.radar_required = true;
2877 }
2878
e4e32459 2879 mutex_lock(&rdev->devlist_mtx);
04f39047
SW		 2880 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
2881 params.chandef.chan,
2882 CHAN_MODE_SHARED,
2883 radar_detect_width);
e4e32459
MK		 2884 mutex_unlock(&rdev->devlist_mtx);
2885
2886 if (err)
2887 return err;
2888
77765eaf
VT		 2889 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2890 params.acl = parse_acl_data(&rdev->wiphy, info);
2891 if (IS_ERR(params.acl))
2892 return PTR_ERR(params.acl);
2893 }
2894
e35e4d28 2895 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2896 if (!err) {
683b6d3b 2897 wdev->preset_chandef = params.chandef;
8860020e 2898 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2899 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2900 wdev->ssid_len = params.ssid_len;
2901 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2902 }
77765eaf
VT		 2903
2904 kfree(params.acl);
2905
56d1893d 2906 return err;
ed1b6cc7
JB		 2907}
2908
8860020e
JB		 2909static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2910{
2911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2912 struct net_device *dev = info->user_ptr[1];
2913 struct wireless_dev *wdev = dev->ieee80211_ptr;
2914 struct cfg80211_beacon_data params;
2915 int err;
2916
2917 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2918 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2919 return -EOPNOTSUPP;
2920
2921 if (!rdev->ops->change_beacon)
2922 return -EOPNOTSUPP;
2923
2924 if (!wdev->beacon_interval)
2925 return -EINVAL;
2926
2927 err = nl80211_parse_beacon(info, &params);
2928 if (err)
2929 return err;
2930
e35e4d28 2931 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2932}
2933
2934static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2935{
4c476991
JB		 2936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2937 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2938
60771780 2939 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2940}
2941
5727ef1b
JB		 2942static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2943 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2944 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2945 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2946 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2947 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2948 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2949};
2950
eccb8e8f 2951static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2952 enum nl80211_iftype iftype,
eccb8e8f 2953 struct station_parameters *params)
5727ef1b
JB		 2954{
2955 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2956 struct nlattr *nla;
5727ef1b
JB		 2957 int flag;
2958
eccb8e8f
JB		 2959 /*
2960 * Try parsing the new attribute first so userspace
2961 * can specify both for older kernels.
2962 */
2963 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2964 if (nla) {
2965 struct nl80211_sta_flag_update *sta_flags;
2966
2967 sta_flags = nla_data(nla);
2968 params->sta_flags_mask = sta_flags->mask;
2969 params->sta_flags_set = sta_flags->set;
77ee7c89 2970 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 2971 if ((params->sta_flags_mask |
2972 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2973 return -EINVAL;
2974 return 0;
2975 }
2976
2977 /* if present, parse the old attribute */
5727ef1b 2978
eccb8e8f 2979 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2980 if (!nla)
2981 return 0;
2982
2983 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2984 nla, sta_flags_policy))
2985 return -EINVAL;
2986
bdd3ae3d
JB		 2987 /*
2988 * Only allow certain flags for interface types so that
2989 * other attributes are silently ignored. Remember that
2990 * this is backward compatibility code with old userspace
2991 * and shouldn't be hit in other cases anyway.
2992 */
2993 switch (iftype) {
2994 case NL80211_IFTYPE_AP:
2995 case NL80211_IFTYPE_AP_VLAN:
2996 case NL80211_IFTYPE_P2P_GO:
2997 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2998 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2999 BIT(NL80211_STA_FLAG_WME) |
3000 BIT(NL80211_STA_FLAG_MFP);
3001 break;
3002 case NL80211_IFTYPE_P2P_CLIENT:
3003 case NL80211_IFTYPE_STATION:
3004 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3005 BIT(NL80211_STA_FLAG_TDLS_PEER);
3006 break;
3007 case NL80211_IFTYPE_MESH_POINT:
3008 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3009 BIT(NL80211_STA_FLAG_MFP) |
3010 BIT(NL80211_STA_FLAG_AUTHORIZED);
3011 default:
3012 return -EINVAL;
3013 }
5727ef1b 3014
3383b5a6
JB		 3015 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3016 if (flags[flag]) {
eccb8e8f 3017 params->sta_flags_set |= (1<<flag);
5727ef1b 3018
3383b5a6
JB		 3019 /* no longer support new API additions in old API */
3020 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3021 return -EINVAL;
3022 }
3023 }
3024
5727ef1b
JB		 3025 return 0;
3026}
3027
c8dcfd8a
FF		 3028static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3029 int attr)
3030{
3031 struct nlattr *rate;
8eb41c8d
VK		 3032 u32 bitrate;
3033 u16 bitrate_compat;
c8dcfd8a
FF		 3034
3035 rate = nla_nest_start(msg, attr);
3036 if (!rate)
db9c64cf 3037 return false;
c8dcfd8a
FF		 3038
3039 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3040 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3041 /* report 16-bit bitrate only if we can */
3042 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3043 if (bitrate > 0 &&
3044 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3045 return false;
3046 if (bitrate_compat > 0 &&
3047 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3048 return false;
3049
3050 if (info->flags & RATE_INFO_FLAGS_MCS) {
3051 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3052 return false;
3053 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3054 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3055 return false;
3056 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3057 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3058 return false;
3059 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3060 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3061 return false;
3062 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3063 return false;
3064 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3065 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3066 return false;
3067 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3068 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3069 return false;
3070 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3071 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3072 return false;
3073 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3074 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3075 return false;
3076 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3077 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3078 return false;
3079 }
c8dcfd8a
FF		 3080
3081 nla_nest_end(msg, rate);
3082 return true;
c8dcfd8a
FF		 3083}
3084
15e47304 3085static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3086 int flags,
3087 struct cfg80211_registered_device *rdev,
3088 struct net_device *dev,
98b62183 3089 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3090{
3091 void *hdr;
f4263c98 3092 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3093
15e47304 3094 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3095 if (!hdr)
3096 return -1;
3097
9360ffd1
DM		 3098 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3099 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3100 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3101 goto nla_put_failure;
f5ea9120 3102
2ec600d6
LCC		 3103 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3104 if (!sinfoattr)
fd5b74dc 3105 goto nla_put_failure;
9360ffd1
DM		 3106 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3107 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3108 sinfo->connected_time))
3109 goto nla_put_failure;
3110 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3111 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3112 sinfo->inactive_time))
3113 goto nla_put_failure;
42745e03
VK		 3114 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3115 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3116 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3117 (u32)sinfo->rx_bytes))
9360ffd1 3118 goto nla_put_failure;
42745e03
VK		 3119 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3120 NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3121 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3122 (u32)sinfo->tx_bytes))
3123 goto nla_put_failure;
3124 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3125 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3126 sinfo->rx_bytes))
3127 goto nla_put_failure;
3128 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3129 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3130 sinfo->tx_bytes))
3131 goto nla_put_failure;
3132 if ((sinfo->filled & STATION_INFO_LLID) &&
3133 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3134 goto nla_put_failure;
3135 if ((sinfo->filled & STATION_INFO_PLID) &&
3136 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3137 goto nla_put_failure;
3138 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3139 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3140 sinfo->plink_state))
3141 goto nla_put_failure;
66266b3a
JL		 3142 switch (rdev->wiphy.signal_type) {
3143 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3144 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3145 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3146 sinfo->signal))
3147 goto nla_put_failure;
3148 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3149 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3150 sinfo->signal_avg))
3151 goto nla_put_failure;
66266b3a
JL		 3152 break;
3153 default:
3154 break;
3155 }
420e7fab 3156 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3157 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3158 NL80211_STA_INFO_TX_BITRATE))
3159 goto nla_put_failure;
3160 }
3161 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3162 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3163 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3164 goto nla_put_failure;
420e7fab 3165 }
9360ffd1
DM		 3166 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3167 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3168 sinfo->rx_packets))
3169 goto nla_put_failure;
3170 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3171 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3172 sinfo->tx_packets))
3173 goto nla_put_failure;
3174 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3175 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3176 sinfo->tx_retries))
3177 goto nla_put_failure;
3178 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3179 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3180 sinfo->tx_failed))
3181 goto nla_put_failure;
3182 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3183 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3184 sinfo->beacon_loss_count))
3185 goto nla_put_failure;
3b1c5a53
MP		 3186 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3187 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3188 sinfo->local_pm))
3189 goto nla_put_failure;
3190 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3191 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3192 sinfo->peer_pm))
3193 goto nla_put_failure;
3194 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3195 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3196 sinfo->nonpeer_pm))
3197 goto nla_put_failure;
f4263c98
PS		 3198 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3199 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3200 if (!bss_param)
3201 goto nla_put_failure;
3202
9360ffd1
DM		 3203 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3204 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3205 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3206 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3207 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3208 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3209 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3210 sinfo->bss_param.dtim_period) ||
3211 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3212 sinfo->bss_param.beacon_interval))
3213 goto nla_put_failure;
f4263c98
PS		 3214
3215 nla_nest_end(msg, bss_param);
3216 }
9360ffd1
DM		 3217 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3218 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3219 sizeof(struct nl80211_sta_flag_update),
3220 &sinfo->sta_flags))
3221 goto nla_put_failure;
7eab0f64
JL		 3222 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3223 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3224 sinfo->t_offset))
3225 goto nla_put_failure;
2ec600d6 3226 nla_nest_end(msg, sinfoattr);
fd5b74dc 3227
9360ffd1
DM		 3228 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3229 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3230 sinfo->assoc_req_ies))
3231 goto nla_put_failure;
50d3dfb7 3232
fd5b74dc
JB		 3233 return genlmsg_end(msg, hdr);
3234
3235 nla_put_failure:
bc3ed28c
TG		 3236 genlmsg_cancel(msg, hdr);
3237 return -EMSGSIZE;
fd5b74dc
JB		 3238}
3239
2ec600d6 3240static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3241 struct netlink_callback *cb)
2ec600d6 3242{
2ec600d6
LCC		 3243 struct station_info sinfo;
3244 struct cfg80211_registered_device *dev;
bba95fef 3245 struct net_device *netdev;
2ec600d6 3246 u8 mac_addr[ETH_ALEN];
bba95fef 3247 int sta_idx = cb->args[1];
2ec600d6 3248 int err;
2ec600d6 3249
67748893
JB		 3250 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3251 if (err)
3252 return err;
bba95fef
JB		 3253
3254 if (!dev->ops->dump_station) {
eec60b03 3255 err = -EOPNOTSUPP;
bba95fef
JB		 3256 goto out_err;
3257 }
3258
bba95fef 3259 while (1) {
f612cedf 3260 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3261 err = rdev_dump_station(dev, netdev, sta_idx,
3262 mac_addr, &sinfo);
bba95fef
JB		 3263 if (err == -ENOENT)
3264 break;
3265 if (err)
3b85875a 3266 goto out_err;
bba95fef
JB		 3267
3268 if (nl80211_send_station(skb,
15e47304 3269 NETLINK_CB(cb->skb).portid,
bba95fef 3270 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3271 dev, netdev, mac_addr,
bba95fef
JB		 3272 &sinfo) < 0)
3273 goto out;
3274
3275 sta_idx++;
3276 }
3277
3278
3279 out:
3280 cb->args[1] = sta_idx;
3281 err = skb->len;
bba95fef 3282 out_err:
67748893 3283 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3284
3285 return err;
2ec600d6 3286}
fd5b74dc 3287
5727ef1b
JB		 3288static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3289{
4c476991
JB		 3290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3291 struct net_device *dev = info->user_ptr[1];
2ec600d6 3292 struct station_info sinfo;
fd5b74dc
JB		 3293 struct sk_buff *msg;
3294 u8 *mac_addr = NULL;
4c476991 3295 int err;
fd5b74dc 3296
2ec600d6 3297 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3298
3299 if (!info->attrs[NL80211_ATTR_MAC])
3300 return -EINVAL;
3301
3302 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3303
4c476991
JB		 3304 if (!rdev->ops->get_station)
3305 return -EOPNOTSUPP;
3b85875a 3306
e35e4d28 3307 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3308 if (err)
4c476991 3309 return err;
2ec600d6 3310
fd2120ca 3311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3312 if (!msg)
4c476991 3313 return -ENOMEM;
fd5b74dc 3314
15e47304 3315 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3316 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3317 nlmsg_free(msg);
3318 return -ENOBUFS;
3319 }
3b85875a 3320
4c476991 3321 return genlmsg_reply(msg, info);
5727ef1b
JB		 3322}
3323
77ee7c89
JB		 3324int cfg80211_check_station_change(struct wiphy *wiphy,
3325 struct station_parameters *params,
3326 enum cfg80211_station_type statype)
3327{
3328 if (params->listen_interval != -1)
3329 return -EINVAL;
3330 if (params->aid)
3331 return -EINVAL;
3332
3333 /* When you run into this, adjust the code below for the new flag */
3334 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3335
3336 switch (statype) {
3337 case CFG80211_STA_MESH_PEER_NONSEC:
3338 case CFG80211_STA_MESH_PEER_SECURE:
3339 /*
3340 * No ignoring the TDLS flag here -- the userspace mesh
3341 * code doesn't have the bug of including TDLS in the
3342 * mask everywhere.
3343 */
3344 if (params->sta_flags_mask &
3345 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3346 BIT(NL80211_STA_FLAG_MFP) |
3347 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3348 return -EINVAL;
3349 break;
3350 case CFG80211_STA_TDLS_PEER_SETUP:
3351 case CFG80211_STA_TDLS_PEER_ACTIVE:
3352 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3353 return -EINVAL;
3354 /* ignore since it can't change */
3355 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3356 break;
3357 default:
3358 /* disallow mesh-specific things */
3359 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3360 return -EINVAL;
3361 if (params->local_pm)
3362 return -EINVAL;
3363 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3364 return -EINVAL;
3365 }
3366
3367 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3368 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3369 /* TDLS can't be set, ... */
3370 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3371 return -EINVAL;
3372 /*
3373 * ... but don't bother the driver with it. This works around
3374 * a hostapd/wpa_supplicant issue -- it always includes the
3375 * TLDS_PEER flag in the mask even for AP mode.
3376 */
3377 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3378 }
3379
3380 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3381 /* reject other things that can't change */
3382 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3383 return -EINVAL;
3384 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3385 return -EINVAL;
3386 if (params->supported_rates)
3387 return -EINVAL;
3388 if (params->ext_capab || params->ht_capa || params->vht_capa)
3389 return -EINVAL;
3390 }
3391
3392 if (statype != CFG80211_STA_AP_CLIENT) {
3393 if (params->vlan)
3394 return -EINVAL;
3395 }
3396
3397 switch (statype) {
3398 case CFG80211_STA_AP_MLME_CLIENT:
3399 /* Use this only for authorizing/unauthorizing a station */
3400 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3401 return -EOPNOTSUPP;
3402 break;
3403 case CFG80211_STA_AP_CLIENT:
3404 /* accept only the listed bits */
3405 if (params->sta_flags_mask &
3406 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3407 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3408 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3409 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3410 BIT(NL80211_STA_FLAG_WME) |
3411 BIT(NL80211_STA_FLAG_MFP)))
3412 return -EINVAL;
3413
3414 /* but authenticated/associated only if driver handles it */
3415 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3416 params->sta_flags_mask &
3417 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3418 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3419 return -EINVAL;
3420 break;
3421 case CFG80211_STA_IBSS:
3422 case CFG80211_STA_AP_STA:
3423 /* reject any changes other than AUTHORIZED */
3424 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3425 return -EINVAL;
3426 break;
3427 case CFG80211_STA_TDLS_PEER_SETUP:
3428 /* reject any changes other than AUTHORIZED or WME */
3429 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3430 BIT(NL80211_STA_FLAG_WME)))
3431 return -EINVAL;
3432 /* force (at least) rates when authorizing */
3433 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3434 !params->supported_rates)
3435 return -EINVAL;
3436 break;
3437 case CFG80211_STA_TDLS_PEER_ACTIVE:
3438 /* reject any changes */
3439 return -EINVAL;
3440 case CFG80211_STA_MESH_PEER_NONSEC:
3441 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3442 return -EINVAL;
3443 break;
3444 case CFG80211_STA_MESH_PEER_SECURE:
3445 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3446 return -EINVAL;
3447 break;
3448 }
3449
3450 return 0;
3451}
3452EXPORT_SYMBOL(cfg80211_check_station_change);
3453
5727ef1b 3454/*
c258d2de 3455 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3456 */
80b99899
JB		 3457static struct net_device *get_vlan(struct genl_info *info,
3458 struct cfg80211_registered_device *rdev)
5727ef1b 3459{
463d0183 3460 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3461 struct net_device *v;
3462 int ret;
3463
3464 if (!vlanattr)
3465 return NULL;
3466
3467 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3468 if (!v)
3469 return ERR_PTR(-ENODEV);
3470
3471 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3472 ret = -EINVAL;
3473 goto error;
5727ef1b 3474 }
80b99899 3475
77ee7c89
JB		 3476 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3477 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3478 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3479 ret = -EINVAL;
3480 goto error;
3481 }
3482
80b99899
JB		 3483 if (!netif_running(v)) {
3484 ret = -ENETDOWN;
3485 goto error;
3486 }
3487
3488 return v;
3489 error:
3490 dev_put(v);
3491 return ERR_PTR(ret);
5727ef1b
JB		 3492}
3493
df881293
JM		 3494static struct nla_policy
3495nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3496 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3497 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3498};
3499
ff276691
JB		 3500static int nl80211_parse_sta_wme(struct genl_info *info,
3501 struct station_parameters *params)
df881293 3502{
df881293
JM		 3503 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3504 struct nlattr *nla;
3505 int err;
3506
df881293
JM		 3507 /* parse WME attributes if present */
3508 if (!info->attrs[NL80211_ATTR_STA_WME])
3509 return 0;
3510
3511 nla = info->attrs[NL80211_ATTR_STA_WME];
3512 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3513 nl80211_sta_wme_policy);
3514 if (err)
3515 return err;
3516
3517 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3518 params->uapsd_queues = nla_get_u8(
3519 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3520 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3521 return -EINVAL;
3522
3523 if (tb[NL80211_STA_WME_MAX_SP])
3524 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3525
3526 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3527 return -EINVAL;
3528
3529 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3530
3531 return 0;
3532}
3533
ff276691
JB		 3534static int nl80211_set_station_tdls(struct genl_info *info,
3535 struct station_parameters *params)
3536{
3537 /* Dummy STA entry gets updated once the peer capabilities are known */
3538 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3539 params->ht_capa =
3540 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3541 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3542 params->vht_capa =
3543 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3544
3545 return nl80211_parse_sta_wme(info, params);
3546}
3547
5727ef1b
JB		 3548static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3549{
4c476991 3550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3551 struct net_device *dev = info->user_ptr[1];
5727ef1b 3552 struct station_parameters params;
77ee7c89
JB		 3553 u8 *mac_addr;
3554 int err;
5727ef1b
JB		 3555
3556 memset(&params, 0, sizeof(params));
3557
3558 params.listen_interval = -1;
3559
77ee7c89
JB		 3560 if (!rdev->ops->change_station)
3561 return -EOPNOTSUPP;
3562
5727ef1b
JB		 3563 if (info->attrs[NL80211_ATTR_STA_AID])
3564 return -EINVAL;
3565
3566 if (!info->attrs[NL80211_ATTR_MAC])
3567 return -EINVAL;
3568
3569 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3570
3571 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3572 params.supported_rates =
3573 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3574 params.supported_rates_len =
3575 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3576 }
3577
9d62a986
JM		 3578 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3579 params.capability =
3580 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3581 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3582 }
3583
3584 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3585 params.ext_capab =
3586 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3587 params.ext_capab_len =
3588 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3589 }
3590
df881293 3591 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3592 return -EINVAL;
36aedc90 3593
bdd3ae3d 3594 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3595 return -EINVAL;
3596
f8bacc21 3597 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3598 params.plink_action =
f8bacc21
JB		 3599 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3600 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3601 return -EINVAL;
3602 }
2ec600d6 3603
f8bacc21 3604 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3605 params.plink_state =
f8bacc21
JB		 3606 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3607 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3608 return -EINVAL;
3609 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3610 }
9c3990aa 3611
3b1c5a53
MP		 3612 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3613 enum nl80211_mesh_power_mode pm = nla_get_u32(
3614 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3615
3616 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3617 pm > NL80211_MESH_POWER_MAX)
3618 return -EINVAL;
3619
3620 params.local_pm = pm;
3621 }
3622
77ee7c89
JB		 3623 /* Include parameters for TDLS peer (will check later) */
3624 err = nl80211_set_station_tdls(info, &params);
3625 if (err)
3626 return err;
3627
3628 params.vlan = get_vlan(info, rdev);
3629 if (IS_ERR(params.vlan))
3630 return PTR_ERR(params.vlan);
3631
a97f4424
JB		 3632 switch (dev->ieee80211_ptr->iftype) {
3633 case NL80211_IFTYPE_AP:
3634 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3635 case NL80211_IFTYPE_P2P_GO:
074ac8df 3636 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3637 case NL80211_IFTYPE_STATION:
267335d6 3638 case NL80211_IFTYPE_ADHOC:
a97f4424 3639 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3640 break;
3641 default:
77ee7c89
JB		 3642 err = -EOPNOTSUPP;
3643 goto out_put_vlan;
034d655e
JB		 3644 }
3645
77ee7c89 3646 /* driver will call cfg80211_check_station_change() */
e35e4d28 3647 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3648
77ee7c89 3649 out_put_vlan:
5727ef1b
JB		 3650 if (params.vlan)
3651 dev_put(params.vlan);
3b85875a 3652
5727ef1b
JB		 3653 return err;
3654}
3655
3656static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3657{
4c476991 3658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3659 int err;
4c476991 3660 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3661 struct station_parameters params;
3662 u8 *mac_addr = NULL;
3663
3664 memset(&params, 0, sizeof(params));
3665
984c311b
JB		 3666 if (!rdev->ops->add_station)
3667 return -EOPNOTSUPP;
3668
5727ef1b
JB		 3669 if (!info->attrs[NL80211_ATTR_MAC])
3670 return -EINVAL;
3671
5727ef1b
JB		 3672 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3673 return -EINVAL;
3674
3675 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3676 return -EINVAL;
3677
0e956c13
TLSC		 3678 if (!info->attrs[NL80211_ATTR_STA_AID])
3679 return -EINVAL;
3680
5727ef1b
JB		 3681 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3682 params.supported_rates =
3683 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3684 params.supported_rates_len =
3685 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3686 params.listen_interval =
3687 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3688
0e956c13
TLSC		 3689 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3690 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3691 return -EINVAL;
51b50fbe 3692
9d62a986
JM		 3693 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3694 params.capability =
3695 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3696 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3697 }
3698
3699 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3700 params.ext_capab =
3701 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3702 params.ext_capab_len =
3703 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3704 }
3705
36aedc90
JM		 3706 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3707 params.ht_capa =
3708 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3709
f461be3e
MP		 3710 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3711 params.vht_capa =
3712 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3713
f8bacc21 3714 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 3715 params.plink_action =
f8bacc21
JB		 3716 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3717 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3718 return -EINVAL;
3719 }
96b78dff 3720
ff276691
JB		 3721 err = nl80211_parse_sta_wme(info, &params);
3722 if (err)
3723 return err;
bdd90d5e 3724
bdd3ae3d 3725 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3726 return -EINVAL;
3727
77ee7c89
JB		 3728 /* When you run into this, adjust the code below for the new flag */
3729 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3730
bdd90d5e
JB		 3731 switch (dev->ieee80211_ptr->iftype) {
3732 case NL80211_IFTYPE_AP:
3733 case NL80211_IFTYPE_AP_VLAN:
3734 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 3735 /* ignore WME attributes if iface/sta is not capable */
3736 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
3737 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
3738 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 3739
bdd90d5e
JB		 3740 /* TDLS peers cannot be added */
3741 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3742 return -EINVAL;
bdd90d5e
JB		 3743 /* but don't bother the driver with it */
3744 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3745
d582cffb
JB		 3746 /* allow authenticated/associated only if driver handles it */
3747 if (!(rdev->wiphy.features &
3748 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3749 params.sta_flags_mask &
3750 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3751 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3752 return -EINVAL;
3753
bdd90d5e
JB		 3754 /* must be last in here for error handling */
3755 params.vlan = get_vlan(info, rdev);
3756 if (IS_ERR(params.vlan))
3757 return PTR_ERR(params.vlan);
3758 break;
3759 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 3760 /* ignore uAPSD data */
3761 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
3762
d582cffb
JB		 3763 /* associated is disallowed */
3764 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3765 return -EINVAL;
bdd90d5e
JB		 3766 /* TDLS peers cannot be added */
3767 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3768 return -EINVAL;
3769 break;
3770 case NL80211_IFTYPE_STATION:
984c311b
JB		 3771 /* ignore uAPSD data */
3772 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
3773
77ee7c89
JB		 3774 /* these are disallowed */
3775 if (params.sta_flags_mask &
3776 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
3777 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 3778 return -EINVAL;
bdd90d5e
JB		 3779 /* Only TDLS peers can be added */
3780 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3781 return -EINVAL;
3782 /* Can only add if TDLS ... */
3783 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3784 return -EOPNOTSUPP;
3785 /* ... with external setup is supported */
3786 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3787 return -EOPNOTSUPP;
77ee7c89
JB		 3788 /*
3789 * Older wpa_supplicant versions always mark the TDLS peer
3790 * as authorized, but it shouldn't yet be.
3791 */
3792 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 3793 break;
3794 default:
3795 return -EOPNOTSUPP;
c75786c9
EP		 3796 }
3797
bdd90d5e 3798 /* be aware of params.vlan when changing code here */
5727ef1b 3799
e35e4d28 3800 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3801
5727ef1b
JB		 3802 if (params.vlan)
3803 dev_put(params.vlan);
5727ef1b
JB		 3804 return err;
3805}
3806
3807static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3808{
4c476991
JB		 3809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3810 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3811 u8 *mac_addr = NULL;
3812
3813 if (info->attrs[NL80211_ATTR_MAC])
3814 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3815
e80cf853 3816 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3817 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3818 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3819 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3820 return -EINVAL;
5727ef1b 3821
4c476991
JB		 3822 if (!rdev->ops->del_station)
3823 return -EOPNOTSUPP;
3b85875a 3824
e35e4d28 3825 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3826}
3827
15e47304 3828static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3829 int flags, struct net_device *dev,
3830 u8 *dst, u8 *next_hop,
3831 struct mpath_info *pinfo)
3832{
3833 void *hdr;
3834 struct nlattr *pinfoattr;
3835
15e47304 3836 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3837 if (!hdr)
3838 return -1;
3839
9360ffd1
DM		 3840 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3841 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3842 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3843 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3844 goto nla_put_failure;
f5ea9120 3845
2ec600d6
LCC		 3846 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3847 if (!pinfoattr)
3848 goto nla_put_failure;
9360ffd1
DM		 3849 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3850 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3851 pinfo->frame_qlen))
3852 goto nla_put_failure;
3853 if (((pinfo->filled & MPATH_INFO_SN) &&
3854 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3855 ((pinfo->filled & MPATH_INFO_METRIC) &&
3856 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3857 pinfo->metric)) ||
3858 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3859 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3860 pinfo->exptime)) ||
3861 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3862 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3863 pinfo->flags)) ||
3864 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3865 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3866 pinfo->discovery_timeout)) ||
3867 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3868 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3869 pinfo->discovery_retries)))
3870 goto nla_put_failure;
2ec600d6
LCC		 3871
3872 nla_nest_end(msg, pinfoattr);
3873
3874 return genlmsg_end(msg, hdr);
3875
3876 nla_put_failure:
bc3ed28c
TG		 3877 genlmsg_cancel(msg, hdr);
3878 return -EMSGSIZE;
2ec600d6
LCC		 3879}
3880
3881static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3882 struct netlink_callback *cb)
2ec600d6 3883{
2ec600d6
LCC		 3884 struct mpath_info pinfo;
3885 struct cfg80211_registered_device *dev;
bba95fef 3886 struct net_device *netdev;
2ec600d6
LCC		 3887 u8 dst[ETH_ALEN];
3888 u8 next_hop[ETH_ALEN];
bba95fef 3889 int path_idx = cb->args[1];
2ec600d6 3890 int err;
2ec600d6 3891
67748893
JB		 3892 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3893 if (err)
3894 return err;
bba95fef
JB		 3895
3896 if (!dev->ops->dump_mpath) {
eec60b03 3897 err = -EOPNOTSUPP;
bba95fef
JB		 3898 goto out_err;
3899 }
3900
eec60b03
JM		 3901 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3902 err = -EOPNOTSUPP;
0448b5fc 3903 goto out_err;
eec60b03
JM		 3904 }
3905
bba95fef 3906 while (1) {
e35e4d28
HG		 3907 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3908 &pinfo);
bba95fef 3909 if (err == -ENOENT)
2ec600d6 3910 break;
bba95fef 3911 if (err)
3b85875a 3912 goto out_err;
2ec600d6 3913
15e47304 3914 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3915 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3916 netdev, dst, next_hop,
3917 &pinfo) < 0)
3918 goto out;
2ec600d6 3919
bba95fef 3920 path_idx++;
2ec600d6 3921 }
2ec600d6 3922
2ec600d6 3923
bba95fef
JB		 3924 out:
3925 cb->args[1] = path_idx;
3926 err = skb->len;
bba95fef 3927 out_err:
67748893 3928 nl80211_finish_netdev_dump(dev);
bba95fef 3929 return err;
2ec600d6
LCC		 3930}
3931
3932static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3933{
4c476991 3934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3935 int err;
4c476991 3936 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3937 struct mpath_info pinfo;
3938 struct sk_buff *msg;
3939 u8 *dst = NULL;
3940 u8 next_hop[ETH_ALEN];
3941
3942 memset(&pinfo, 0, sizeof(pinfo));
3943
3944 if (!info->attrs[NL80211_ATTR_MAC])
3945 return -EINVAL;
3946
3947 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3948
4c476991
JB		 3949 if (!rdev->ops->get_mpath)
3950 return -EOPNOTSUPP;
2ec600d6 3951
4c476991
JB		 3952 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3953 return -EOPNOTSUPP;
eec60b03 3954
e35e4d28 3955 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3956 if (err)
4c476991 3957 return err;
2ec600d6 3958
fd2120ca 3959 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3960 if (!msg)
4c476991 3961 return -ENOMEM;
2ec600d6 3962
15e47304 3963 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3964 dev, dst, next_hop, &pinfo) < 0) {
3965 nlmsg_free(msg);
3966 return -ENOBUFS;
3967 }
3b85875a 3968
4c476991 3969 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3970}
3971
3972static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3973{
4c476991
JB		 3974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3975 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3976 u8 *dst = NULL;
3977 u8 *next_hop = NULL;
3978
3979 if (!info->attrs[NL80211_ATTR_MAC])
3980 return -EINVAL;
3981
3982 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3983 return -EINVAL;
3984
3985 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3986 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3987
4c476991
JB		 3988 if (!rdev->ops->change_mpath)
3989 return -EOPNOTSUPP;
35a8efe1 3990
4c476991
JB		 3991 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3992 return -EOPNOTSUPP;
2ec600d6 3993
e35e4d28 3994 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3995}
4c476991 3996
2ec600d6
LCC		 3997static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3998{
4c476991
JB		 3999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4000 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4001 u8 *dst = NULL;
4002 u8 *next_hop = NULL;
4003
4004 if (!info->attrs[NL80211_ATTR_MAC])
4005 return -EINVAL;
4006
4007 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4008 return -EINVAL;
4009
4010 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4011 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4012
4c476991
JB		 4013 if (!rdev->ops->add_mpath)
4014 return -EOPNOTSUPP;
35a8efe1 4015
4c476991
JB		 4016 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4017 return -EOPNOTSUPP;
2ec600d6 4018
e35e4d28 4019 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4020}
4021
4022static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4023{
4c476991
JB		 4024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4025 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4026 u8 *dst = NULL;
4027
4028 if (info->attrs[NL80211_ATTR_MAC])
4029 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4030
4c476991
JB		 4031 if (!rdev->ops->del_mpath)
4032 return -EOPNOTSUPP;
3b85875a 4033
e35e4d28 4034 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4035}
4036
9f1ba906
JM		 4037static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4038{
4c476991
JB		 4039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4040 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4041 struct bss_parameters params;
4042
4043 memset(&params, 0, sizeof(params));
4044 /* default to not changing parameters */
4045 params.use_cts_prot = -1;
4046 params.use_short_preamble = -1;
4047 params.use_short_slot_time = -1;
fd8aaaf3 4048 params.ap_isolate = -1;
50b12f59 4049 params.ht_opmode = -1;
53cabad7
JB		 4050 params.p2p_ctwindow = -1;
4051 params.p2p_opp_ps = -1;
9f1ba906
JM		 4052
4053 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4054 params.use_cts_prot =
4055 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4056 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4057 params.use_short_preamble =
4058 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4059 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4060 params.use_short_slot_time =
4061 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4062 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4063 params.basic_rates =
4064 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4065 params.basic_rates_len =
4066 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4067 }
fd8aaaf3
FF		 4068 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4069 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4070 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4071 params.ht_opmode =
4072 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4073
53cabad7
JB		 4074 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4075 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4076 return -EINVAL;
4077 params.p2p_ctwindow =
4078 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4079 if (params.p2p_ctwindow < 0)
4080 return -EINVAL;
4081 if (params.p2p_ctwindow != 0 &&
4082 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4083 return -EINVAL;
4084 }
4085
4086 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4087 u8 tmp;
4088
4089 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4090 return -EINVAL;
4091 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4092 if (tmp > 1)
4093 return -EINVAL;
4094 params.p2p_opp_ps = tmp;
4095 if (params.p2p_opp_ps &&
4096 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4097 return -EINVAL;
4098 }
4099
4c476991
JB		 4100 if (!rdev->ops->change_bss)
4101 return -EOPNOTSUPP;
9f1ba906 4102
074ac8df 4103 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4104 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4105 return -EOPNOTSUPP;
3b85875a 4106
e35e4d28 4107 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4108}
4109
b54452b0 4110static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4111 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4112 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4113 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4114 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4115 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4116 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4117};
4118
4119static int parse_reg_rule(struct nlattr *tb[],
4120 struct ieee80211_reg_rule *reg_rule)
4121{
4122 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4123 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4124
4125 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4126 return -EINVAL;
4127 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4128 return -EINVAL;
4129 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4130 return -EINVAL;
4131 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4132 return -EINVAL;
4133 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4134 return -EINVAL;
4135
4136 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4137
4138 freq_range->start_freq_khz =
4139 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4140 freq_range->end_freq_khz =
4141 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4142 freq_range->max_bandwidth_khz =
4143 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4144
4145 power_rule->max_eirp =
4146 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4147
4148 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4149 power_rule->max_antenna_gain =
4150 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4151
4152 return 0;
4153}
4154
4155static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4156{
4157 int r;
4158 char *data = NULL;
57b5ce07 4159 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4160
80778f18
LR		 4161 /*
4162 * You should only get this when cfg80211 hasn't yet initialized
4163 * completely when built-in to the kernel right between the time
4164 * window between nl80211_init() and regulatory_init(), if that is
4165 * even possible.
4166 */
458f4f9e 4167 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4168 return -EINPROGRESS;
80778f18 4169
fe33eb39
LR		 4170 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4171 return -EINVAL;
b2e1b302
LR		 4172
4173 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4174
57b5ce07
LR		 4175 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4176 user_reg_hint_type =
4177 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4178 else
4179 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4180
4181 switch (user_reg_hint_type) {
4182 case NL80211_USER_REG_HINT_USER:
4183 case NL80211_USER_REG_HINT_CELL_BASE:
4184 break;
4185 default:
4186 return -EINVAL;
4187 }
4188
4189 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4190
b2e1b302
LR		 4191 return r;
4192}
4193
24bdd9f4 4194static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4195 struct genl_info *info)
93da9cc1 4196{
4c476991 4197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4198 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4199 struct wireless_dev *wdev = dev->ieee80211_ptr;
4200 struct mesh_config cur_params;
4201 int err = 0;
93da9cc1 4202 void *hdr;
4203 struct nlattr *pinfoattr;
4204 struct sk_buff *msg;
4205
29cbe68c
JB		 4206 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4207 return -EOPNOTSUPP;
4208
24bdd9f4 4209 if (!rdev->ops->get_mesh_config)
4c476991 4210 return -EOPNOTSUPP;
f3f92586 4211
29cbe68c
JB		 4212 wdev_lock(wdev);
4213 /* If not connected, get default parameters */
4214 if (!wdev->mesh_id_len)
4215 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4216 else
e35e4d28 4217 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4218 wdev_unlock(wdev);
4219
93da9cc1 4220 if (err)
4c476991 4221 return err;
93da9cc1 4222
4223 /* Draw up a netlink message to send back */
fd2120ca 4224 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4225 if (!msg)
4226 return -ENOMEM;
15e47304 4227 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4228 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4229 if (!hdr)
efe1cf0c 4230 goto out;
24bdd9f4 4231 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4232 if (!pinfoattr)
4233 goto nla_put_failure;
9360ffd1
DM		 4234 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4235 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4236 cur_params.dot11MeshRetryTimeout) ||
4237 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4238 cur_params.dot11MeshConfirmTimeout) ||
4239 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4240 cur_params.dot11MeshHoldingTimeout) ||
4241 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4242 cur_params.dot11MeshMaxPeerLinks) ||
4243 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4244 cur_params.dot11MeshMaxRetries) ||
4245 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4246 cur_params.dot11MeshTTL) ||
4247 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4248 cur_params.element_ttl) ||
4249 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4250 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4251 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4252 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4253 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4254 cur_params.dot11MeshHWMPmaxPREQretries) ||
4255 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4256 cur_params.path_refresh_time) ||
4257 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4258 cur_params.min_discovery_timeout) ||
4259 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4260 cur_params.dot11MeshHWMPactivePathTimeout) ||
4261 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4262 cur_params.dot11MeshHWMPpreqMinInterval) ||
4263 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4264 cur_params.dot11MeshHWMPperrMinInterval) ||
4265 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4266 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4267 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4268 cur_params.dot11MeshHWMPRootMode) ||
4269 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4270 cur_params.dot11MeshHWMPRannInterval) ||
4271 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4272 cur_params.dot11MeshGateAnnouncementProtocol) ||
4273 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4274 cur_params.dot11MeshForwarding) ||
4275 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4276 cur_params.rssi_threshold) ||
4277 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4278 cur_params.ht_opmode) ||
4279 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4280 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4281 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4282 cur_params.dot11MeshHWMProotInterval) ||
4283 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4284 cur_params.dot11MeshHWMPconfirmationInterval) ||
4285 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4286 cur_params.power_mode) ||
4287 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4288 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4289 goto nla_put_failure;
93da9cc1 4290 nla_nest_end(msg, pinfoattr);
4291 genlmsg_end(msg, hdr);
4c476991 4292 return genlmsg_reply(msg, info);
93da9cc1 4293
3b85875a 4294 nla_put_failure:
93da9cc1 4295 genlmsg_cancel(msg, hdr);
efe1cf0c 4296 out:
d080e275 4297 nlmsg_free(msg);
4c476991 4298 return -ENOBUFS;
93da9cc1 4299}
4300
b54452b0 4301static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4302 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4303 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4304 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4305 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4306 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4307 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4308 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4309 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4310 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4311 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4312 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4313 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4314 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4315 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4316 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4317 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4318 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4319 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4320 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4321 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4322 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4323 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4324 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4325 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4326 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4327 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4328 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4329};
4330
c80d545d
JC		 4331static const struct nla_policy
4332 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4333 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4334 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4335 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4336 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 4337 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4338 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4339 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4340};
4341
24bdd9f4 4342static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4343 struct mesh_config *cfg,
4344 u32 *mask_out)
93da9cc1 4345{
93da9cc1 4346 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4347 u32 mask = 0;
93da9cc1 4348
ea54fba2
MP		 4349#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4350do { \
4351 if (tb[attr]) { \
4352 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4353 return -EINVAL; \
4354 cfg->param = fn(tb[attr]); \
4355 mask |= (1 << (attr - 1)); \
4356 } \
4357} while (0)
bd90fdcc
JB		 4358
4359
24bdd9f4 4360 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4361 return -EINVAL;
4362 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4363 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4364 nl80211_meshconf_params_policy))
93da9cc1 4365 return -EINVAL;
4366
93da9cc1 4367 /* This makes sure that there aren't more than 32 mesh config
4368 * parameters (otherwise our bitfield scheme would not work.) */
4369 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4370
4371 /* Fill in the params struct */
ea54fba2 4372 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4373 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4374 nla_get_u16);
ea54fba2 4375 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4376 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4377 nla_get_u16);
ea54fba2 4378 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4379 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4380 nla_get_u16);
ea54fba2 4381 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4382 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4383 nla_get_u16);
ea54fba2 4384 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4385 mask, NL80211_MESHCONF_MAX_RETRIES,
4386 nla_get_u8);
ea54fba2 4387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4388 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4389 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4390 mask, NL80211_MESHCONF_ELEMENT_TTL,
4391 nla_get_u8);
ea54fba2 4392 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4393 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4394 nla_get_u8);
ea54fba2
MP		 4395 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4396 1, 255, mask,
a4f606ea
CYY		 4397 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4398 nla_get_u32);
ea54fba2 4399 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4400 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4401 nla_get_u8);
ea54fba2 4402 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4403 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4404 nla_get_u32);
ea54fba2 4405 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4406 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4407 nla_get_u16);
ea54fba2
MP		 4408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4409 1, 65535, mask,
a4f606ea
CYY		 4410 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4411 nla_get_u32);
93da9cc1 4412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4413 1, 65535, mask,
4414 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4415 nla_get_u16);
dca7e943 4416 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4417 1, 65535, mask,
4418 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4419 nla_get_u16);
93da9cc1 4420 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4421 dot11MeshHWMPnetDiameterTraversalTime,
4422 1, 65535, mask,
a4f606ea
CYY		 4423 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4424 nla_get_u16);
ea54fba2
MP		 4425 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4426 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4427 nla_get_u8);
4428 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4429 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4430 nla_get_u16);
63c5723b 4431 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4432 dot11MeshGateAnnouncementProtocol, 0, 1,
4433 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4434 nla_get_u8);
ea54fba2 4435 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4436 mask, NL80211_MESHCONF_FORWARDING,
4437 nla_get_u8);
ea54fba2 4438 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4439 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4440 nla_get_u32);
ea54fba2 4441 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4442 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4443 nla_get_u16);
4444 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4445 1, 65535, mask,
ac1073a6
CYY		 4446 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4447 nla_get_u32);
ea54fba2 4448 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4449 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4450 nla_get_u16);
4451 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4452 dot11MeshHWMPconfirmationInterval,
4453 1, 65535, mask,
728b19e5 4454 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4455 nla_get_u16);
3b1c5a53
MP		 4456 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4457 NL80211_MESH_POWER_ACTIVE,
4458 NL80211_MESH_POWER_MAX,
4459 mask, NL80211_MESHCONF_POWER_MODE,
4460 nla_get_u32);
4461 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4462 0, 65535, mask,
4463 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4464 if (mask_out)
4465 *mask_out = mask;
c80d545d 4466
bd90fdcc
JB		 4467 return 0;
4468
4469#undef FILL_IN_MESH_PARAM_IF_SET
4470}
4471
c80d545d
JC		 4472static int nl80211_parse_mesh_setup(struct genl_info *info,
4473 struct mesh_setup *setup)
4474{
4475 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4476
4477 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4478 return -EINVAL;
4479 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4480 info->attrs[NL80211_ATTR_MESH_SETUP],
4481 nl80211_mesh_setup_params_policy))
4482 return -EINVAL;
4483
d299a1f2
JC		 4484 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4485 setup->sync_method =
4486 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4487 IEEE80211_SYNC_METHOD_VENDOR :
4488 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4489
c80d545d
JC		 4490 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4491 setup->path_sel_proto =
4492 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4493 IEEE80211_PATH_PROTOCOL_VENDOR :
4494 IEEE80211_PATH_PROTOCOL_HWMP;
4495
4496 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4497 setup->path_metric =
4498 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4499 IEEE80211_PATH_METRIC_VENDOR :
4500 IEEE80211_PATH_METRIC_AIRTIME;
4501
581a8b0f
JC		 4502
4503 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4504 struct nlattr *ieattr =
581a8b0f 4505 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4506 if (!is_valid_ie_attr(ieattr))
4507 return -EINVAL;
581a8b0f
JC		 4508 setup->ie = nla_data(ieattr);
4509 setup->ie_len = nla_len(ieattr);
c80d545d 4510 }
b130e5ce
JC		 4511 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4512 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4513
4514 return 0;
4515}
4516
24bdd9f4 4517static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4518 struct genl_info *info)
bd90fdcc
JB		 4519{
4520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 struct net_device *dev = info->user_ptr[1];
29cbe68c 4522 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4523 struct mesh_config cfg;
4524 u32 mask;
4525 int err;
4526
29cbe68c
JB		 4527 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4528 return -EOPNOTSUPP;
4529
24bdd9f4 4530 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4531 return -EOPNOTSUPP;
4532
24bdd9f4 4533 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4534 if (err)
4535 return err;
4536
29cbe68c
JB		 4537 wdev_lock(wdev);
4538 if (!wdev->mesh_id_len)
4539 err = -ENOLINK;
4540
4541 if (!err)
e35e4d28 4542 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4543
4544 wdev_unlock(wdev);
4545
4546 return err;
93da9cc1 4547}
4548
f130347c
LR		 4549static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4550{
458f4f9e 4551 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4552 struct sk_buff *msg;
4553 void *hdr = NULL;
4554 struct nlattr *nl_reg_rules;
4555 unsigned int i;
4556 int err = -EINVAL;
4557
a1794390 4558 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4559
4560 if (!cfg80211_regdomain)
4561 goto out;
4562
fd2120ca 4563 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4564 if (!msg) {
4565 err = -ENOBUFS;
4566 goto out;
4567 }
4568
15e47304 4569 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4570 NL80211_CMD_GET_REG);
4571 if (!hdr)
efe1cf0c 4572 goto put_failure;
f130347c 4573
57b5ce07
LR		 4574 if (reg_last_request_cell_base() &&
4575 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4576 NL80211_USER_REG_HINT_CELL_BASE))
4577 goto nla_put_failure;
4578
458f4f9e
JB		 4579 rcu_read_lock();
4580 regdom = rcu_dereference(cfg80211_regdomain);
4581
4582 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4583 (regdom->dfs_region &&
4584 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4585 goto nla_put_failure_rcu;
4586
f130347c
LR		 4587 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4588 if (!nl_reg_rules)
458f4f9e 4589 goto nla_put_failure_rcu;
f130347c 4590
458f4f9e 4591 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4592 struct nlattr *nl_reg_rule;
4593 const struct ieee80211_reg_rule *reg_rule;
4594 const struct ieee80211_freq_range *freq_range;
4595 const struct ieee80211_power_rule *power_rule;
4596
458f4f9e 4597 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4598 freq_range = &reg_rule->freq_range;
4599 power_rule = &reg_rule->power_rule;
4600
4601 nl_reg_rule = nla_nest_start(msg, i);
4602 if (!nl_reg_rule)
458f4f9e 4603 goto nla_put_failure_rcu;
f130347c 4604
9360ffd1
DM		 4605 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4606 reg_rule->flags) ||
4607 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4608 freq_range->start_freq_khz) ||
4609 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4610 freq_range->end_freq_khz) ||
4611 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4612 freq_range->max_bandwidth_khz) ||
4613 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4614 power_rule->max_antenna_gain) ||
4615 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4616 power_rule->max_eirp))
458f4f9e 4617 goto nla_put_failure_rcu;
f130347c
LR		 4618
4619 nla_nest_end(msg, nl_reg_rule);
4620 }
458f4f9e 4621 rcu_read_unlock();
f130347c
LR		 4622
4623 nla_nest_end(msg, nl_reg_rules);
4624
4625 genlmsg_end(msg, hdr);
134e6375 4626 err = genlmsg_reply(msg, info);
f130347c
LR		 4627 goto out;
4628
458f4f9e
JB		 4629nla_put_failure_rcu:
4630 rcu_read_unlock();
f130347c
LR		 4631nla_put_failure:
4632 genlmsg_cancel(msg, hdr);
efe1cf0c 4633put_failure:
d080e275 4634 nlmsg_free(msg);
f130347c
LR		 4635 err = -EMSGSIZE;
4636out:
a1794390 4637 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4638 return err;
4639}
4640
b2e1b302
LR		 4641static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4642{
4643 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4644 struct nlattr *nl_reg_rule;
4645 char *alpha2 = NULL;
4646 int rem_reg_rules = 0, r = 0;
4647 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4648 u8 dfs_region = 0;
b2e1b302
LR		 4649 struct ieee80211_regdomain *rd = NULL;
4650
4651 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4652 return -EINVAL;
4653
4654 if (!info->attrs[NL80211_ATTR_REG_RULES])
4655 return -EINVAL;
4656
4657 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4658
8b60b078
LR		 4659 if (info->attrs[NL80211_ATTR_DFS_REGION])
4660 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4661
b2e1b302 4662 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4663 rem_reg_rules) {
b2e1b302
LR		 4664 num_rules++;
4665 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4666 return -EINVAL;
b2e1b302
LR		 4667 }
4668
b2e1b302 4669 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4670 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4671
4672 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4673 if (!rd)
4674 return -ENOMEM;
b2e1b302
LR		 4675
4676 rd->n_reg_rules = num_rules;
4677 rd->alpha2[0] = alpha2[0];
4678 rd->alpha2[1] = alpha2[1];
4679
8b60b078
LR		 4680 /*
4681 * Disable DFS master mode if the DFS region was
4682 * not supported or known on this kernel.
4683 */
4684 if (reg_supported_dfs_region(dfs_region))
4685 rd->dfs_region = dfs_region;
4686
b2e1b302 4687 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4688 rem_reg_rules) {
b2e1b302 4689 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4690 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4691 reg_rule_policy);
b2e1b302
LR		 4692 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4693 if (r)
4694 goto bad_reg;
4695
4696 rule_idx++;
4697
d0e18f83
LR		 4698 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4699 r = -EINVAL;
b2e1b302 4700 goto bad_reg;
d0e18f83 4701 }
b2e1b302
LR		 4702 }
4703
6913b49a
JB		 4704 mutex_lock(&cfg80211_mutex);
4705
b2e1b302 4706 r = set_regdom(rd);
6913b49a 4707 /* set_regdom took ownership */
1a919318 4708 rd = NULL;
6913b49a 4709 mutex_unlock(&cfg80211_mutex);
b2e1b302 4710
d2372b31 4711 bad_reg:
b2e1b302 4712 kfree(rd);
d0e18f83 4713 return r;
b2e1b302
LR		 4714}
4715
83f5e2cf
JB		 4716static int validate_scan_freqs(struct nlattr *freqs)
4717{
4718 struct nlattr *attr1, *attr2;
4719 int n_channels = 0, tmp1, tmp2;
4720
4721 nla_for_each_nested(attr1, freqs, tmp1) {
4722 n_channels++;
4723 /*
4724 * Some hardware has a limited channel list for
4725 * scanning, and it is pretty much nonsensical
4726 * to scan for a channel twice, so disallow that
4727 * and don't require drivers to check that the
4728 * channel list they get isn't longer than what
4729 * they can scan, as long as they can scan all
4730 * the channels they registered at once.
4731 */
4732 nla_for_each_nested(attr2, freqs, tmp2)
4733 if (attr1 != attr2 &&
4734 nla_get_u32(attr1) == nla_get_u32(attr2))
4735 return 0;
4736 }
4737
4738 return n_channels;
4739}
4740
2a519311
JB		 4741static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4742{
4c476991 4743 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4744 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4745 struct cfg80211_scan_request *request;
2a519311
JB		 4746 struct nlattr *attr;
4747 struct wiphy *wiphy;
83f5e2cf 4748 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4749 size_t ie_len;
2a519311 4750
f4a11bb0
JB		 4751 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4752 return -EINVAL;
4753
79c97e97 4754 wiphy = &rdev->wiphy;
2a519311 4755
4c476991
JB		 4756 if (!rdev->ops->scan)
4757 return -EOPNOTSUPP;
2a519311 4758
4c476991
JB		 4759 if (rdev->scan_req)
4760 return -EBUSY;
2a519311
JB		 4761
4762 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4763 n_channels = validate_scan_freqs(
4764 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4765 if (!n_channels)
4766 return -EINVAL;
2a519311 4767 } else {
34850ab2 4768 enum ieee80211_band band;
83f5e2cf
JB		 4769 n_channels = 0;
4770
2a519311
JB		 4771 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4772 if (wiphy->bands[band])
4773 n_channels += wiphy->bands[band]->n_channels;
4774 }
4775
4776 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4777 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4778 n_ssids++;
4779
4c476991
JB		 4780 if (n_ssids > wiphy->max_scan_ssids)
4781 return -EINVAL;
2a519311 4782
70692ad2
JM		 4783 if (info->attrs[NL80211_ATTR_IE])
4784 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4785 else
4786 ie_len = 0;
4787
4c476991
JB		 4788 if (ie_len > wiphy->max_scan_ie_len)
4789 return -EINVAL;
18a83659 4790
2a519311 4791 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4792 + sizeof(*request->ssids) * n_ssids
4793 + sizeof(*request->channels) * n_channels
70692ad2 4794 + ie_len, GFP_KERNEL);
4c476991
JB		 4795 if (!request)
4796 return -ENOMEM;
2a519311 4797
2a519311 4798 if (n_ssids)
5ba63533 4799 request->ssids = (void *)&request->channels[n_channels];
2a519311 4800 request->n_ssids = n_ssids;
70692ad2
JM		 4801 if (ie_len) {
4802 if (request->ssids)
4803 request->ie = (void *)(request->ssids + n_ssids);
4804 else
4805 request->ie = (void *)(request->channels + n_channels);
4806 }
2a519311 4807
584991dc 4808 i = 0;
2a519311
JB		 4809 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4810 /* user specified, bail out if channel not found */
2a519311 4811 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4812 struct ieee80211_channel *chan;
4813
4814 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4815
4816 if (!chan) {
2a519311
JB		 4817 err = -EINVAL;
4818 goto out_free;
4819 }
584991dc
JB		 4820
4821 /* ignore disabled channels */
4822 if (chan->flags & IEEE80211_CHAN_DISABLED)
4823 continue;
4824
4825 request->channels[i] = chan;
2a519311
JB		 4826 i++;
4827 }
4828 } else {
34850ab2
JB		 4829 enum ieee80211_band band;
4830
2a519311 4831 /* all channels */
2a519311
JB		 4832 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4833 int j;
4834 if (!wiphy->bands[band])
4835 continue;
4836 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4837 struct ieee80211_channel *chan;
4838
4839 chan = &wiphy->bands[band]->channels[j];
4840
4841 if (chan->flags & IEEE80211_CHAN_DISABLED)
4842 continue;
4843
4844 request->channels[i] = chan;
2a519311
JB		 4845 i++;
4846 }
4847 }
4848 }
4849
584991dc
JB		 4850 if (!i) {
4851 err = -EINVAL;
4852 goto out_free;
4853 }
4854
4855 request->n_channels = i;
4856
2a519311
JB		 4857 i = 0;
4858 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4859 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4860 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4861 err = -EINVAL;
4862 goto out_free;
4863 }
57a27e1d 4864 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4865 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4866 i++;
4867 }
4868 }
4869
70692ad2
JM		 4870 if (info->attrs[NL80211_ATTR_IE]) {
4871 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4872 memcpy((void *)request->ie,
4873 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4874 request->ie_len);
4875 }
4876
34850ab2 4877 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4878 if (wiphy->bands[i])
4879 request->rates[i] =
4880 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4881
4882 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4883 nla_for_each_nested(attr,
4884 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4885 tmp) {
4886 enum ieee80211_band band = nla_type(attr);
4887
84404623 4888 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4889 err = -EINVAL;
4890 goto out_free;
4891 }
4892 err = ieee80211_get_ratemask(wiphy->bands[band],
4893 nla_data(attr),
4894 nla_len(attr),
4895 &request->rates[band]);
4896 if (err)
4897 goto out_free;
4898 }
4899 }
4900
46856bbf 4901 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4902 request->flags = nla_get_u32(
4903 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4904 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4905 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4906 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4907 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4908 err = -EOPNOTSUPP;
4909 goto out_free;
4910 }
4911 }
ed473771 4912
e9f935e3
RM		 4913 request->no_cck =
4914 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4915
fd014284 4916 request->wdev = wdev;
79c97e97 4917 request->wiphy = &rdev->wiphy;
15d6030b 4918 request->scan_start = jiffies;
2a519311 4919
79c97e97 4920 rdev->scan_req = request;
e35e4d28 4921 err = rdev_scan(rdev, request);
2a519311 4922
463d0183 4923 if (!err) {
fd014284
JB		 4924 nl80211_send_scan_start(rdev, wdev);
4925 if (wdev->netdev)
4926 dev_hold(wdev->netdev);
4c476991 4927 } else {
2a519311 4928 out_free:
79c97e97 4929 rdev->scan_req = NULL;
2a519311
JB		 4930 kfree(request);
4931 }
3b85875a 4932
2a519311
JB		 4933 return err;
4934}
4935
807f8a8c
LC		 4936static int nl80211_start_sched_scan(struct sk_buff *skb,
4937 struct genl_info *info)
4938{
4939 struct cfg80211_sched_scan_request *request;
4940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4941 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4942 struct nlattr *attr;
4943 struct wiphy *wiphy;
a1f1c21c 4944 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4945 u32 interval;
807f8a8c
LC		 4946 enum ieee80211_band band;
4947 size_t ie_len;
a1f1c21c 4948 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4949
4950 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4951 !rdev->ops->sched_scan_start)
4952 return -EOPNOTSUPP;
4953
4954 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4955 return -EINVAL;
4956
bbe6ad6d
LC		 4957 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4958 return -EINVAL;
4959
4960 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4961 if (interval == 0)
4962 return -EINVAL;
4963
807f8a8c
LC		 4964 wiphy = &rdev->wiphy;
4965
4966 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4967 n_channels = validate_scan_freqs(
4968 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4969 if (!n_channels)
4970 return -EINVAL;
4971 } else {
4972 n_channels = 0;
4973
4974 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4975 if (wiphy->bands[band])
4976 n_channels += wiphy->bands[band]->n_channels;
4977 }
4978
4979 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4980 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4981 tmp)
4982 n_ssids++;
4983
93b6aa69 4984 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4985 return -EINVAL;
4986
a1f1c21c
LC		 4987 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4988 nla_for_each_nested(attr,
4989 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4990 tmp)
4991 n_match_sets++;
4992
4993 if (n_match_sets > wiphy->max_match_sets)
4994 return -EINVAL;
4995
807f8a8c
LC		 4996 if (info->attrs[NL80211_ATTR_IE])
4997 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4998 else
4999 ie_len = 0;
5000
5a865bad 5001 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5002 return -EINVAL;
5003
c10841ca
LC		 5004 mutex_lock(&rdev->sched_scan_mtx);
5005
5006 if (rdev->sched_scan_req) {
5007 err = -EINPROGRESS;
5008 goto out;
5009 }
5010
807f8a8c 5011 request = kzalloc(sizeof(*request)
a2cd43c5 5012 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5013 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5014 + sizeof(*request->channels) * n_channels
807f8a8c 5015 + ie_len, GFP_KERNEL);
c10841ca
LC		 5016 if (!request) {
5017 err = -ENOMEM;
5018 goto out;
5019 }
807f8a8c
LC		 5020
5021 if (n_ssids)
5022 request->ssids = (void *)&request->channels[n_channels];
5023 request->n_ssids = n_ssids;
5024 if (ie_len) {
5025 if (request->ssids)
5026 request->ie = (void *)(request->ssids + n_ssids);
5027 else
5028 request->ie = (void *)(request->channels + n_channels);
5029 }
5030
a1f1c21c
LC		 5031 if (n_match_sets) {
5032 if (request->ie)
5033 request->match_sets = (void *)(request->ie + ie_len);
5034 else if (request->ssids)
5035 request->match_sets =
5036 (void *)(request->ssids + n_ssids);
5037 else
5038 request->match_sets =
5039 (void *)(request->channels + n_channels);
5040 }
5041 request->n_match_sets = n_match_sets;
5042
807f8a8c
LC		 5043 i = 0;
5044 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5045 /* user specified, bail out if channel not found */
5046 nla_for_each_nested(attr,
5047 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5048 tmp) {
5049 struct ieee80211_channel *chan;
5050
5051 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5052
5053 if (!chan) {
5054 err = -EINVAL;
5055 goto out_free;
5056 }
5057
5058 /* ignore disabled channels */
5059 if (chan->flags & IEEE80211_CHAN_DISABLED)
5060 continue;
5061
5062 request->channels[i] = chan;
5063 i++;
5064 }
5065 } else {
5066 /* all channels */
5067 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5068 int j;
5069 if (!wiphy->bands[band])
5070 continue;
5071 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5072 struct ieee80211_channel *chan;
5073
5074 chan = &wiphy->bands[band]->channels[j];
5075
5076 if (chan->flags & IEEE80211_CHAN_DISABLED)
5077 continue;
5078
5079 request->channels[i] = chan;
5080 i++;
5081 }
5082 }
5083 }
5084
5085 if (!i) {
5086 err = -EINVAL;
5087 goto out_free;
5088 }
5089
5090 request->n_channels = i;
5091
5092 i = 0;
5093 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5094 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5095 tmp) {
57a27e1d 5096 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5097 err = -EINVAL;
5098 goto out_free;
5099 }
57a27e1d 5100 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5101 memcpy(request->ssids[i].ssid, nla_data(attr),
5102 nla_len(attr));
807f8a8c
LC		 5103 i++;
5104 }
5105 }
5106
a1f1c21c
LC		 5107 i = 0;
5108 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5109 nla_for_each_nested(attr,
5110 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5111 tmp) {
88e920b4 5112 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5113
5114 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5115 nla_data(attr), nla_len(attr),
5116 nl80211_match_policy);
4a4ab0d7 5117 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5118 if (ssid) {
5119 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5120 err = -EINVAL;
5121 goto out_free;
5122 }
5123 memcpy(request->match_sets[i].ssid.ssid,
5124 nla_data(ssid), nla_len(ssid));
5125 request->match_sets[i].ssid.ssid_len =
5126 nla_len(ssid);
5127 }
88e920b4
TP		 5128 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5129 if (rssi)
5130 request->rssi_thold = nla_get_u32(rssi);
5131 else
5132 request->rssi_thold =
5133 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5134 i++;
5135 }
5136 }
5137
807f8a8c
LC		 5138 if (info->attrs[NL80211_ATTR_IE]) {
5139 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5140 memcpy((void *)request->ie,
5141 nla_data(info->attrs[NL80211_ATTR_IE]),
5142 request->ie_len);
5143 }
5144
46856bbf 5145 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5146 request->flags = nla_get_u32(
5147 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5148 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5149 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5150 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5151 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5152 err = -EOPNOTSUPP;
5153 goto out_free;
5154 }
5155 }
ed473771 5156
807f8a8c
LC		 5157 request->dev = dev;
5158 request->wiphy = &rdev->wiphy;
bbe6ad6d 5159 request->interval = interval;
15d6030b 5160 request->scan_start = jiffies;
807f8a8c 5161
e35e4d28 5162 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5163 if (!err) {
5164 rdev->sched_scan_req = request;
5165 nl80211_send_sched_scan(rdev, dev,
5166 NL80211_CMD_START_SCHED_SCAN);
5167 goto out;
5168 }
5169
5170out_free:
5171 kfree(request);
5172out:
c10841ca 5173 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 5174 return err;
5175}
5176
5177static int nl80211_stop_sched_scan(struct sk_buff *skb,
5178 struct genl_info *info)
5179{
5180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 5181 int err;
807f8a8c
LC		 5182
5183 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5184 !rdev->ops->sched_scan_stop)
5185 return -EOPNOTSUPP;
5186
c10841ca
LC		 5187 mutex_lock(&rdev->sched_scan_mtx);
5188 err = __cfg80211_stop_sched_scan(rdev, false);
5189 mutex_unlock(&rdev->sched_scan_mtx);
5190
5191 return err;
807f8a8c
LC		 5192}
5193
04f39047
SW		 5194static int nl80211_start_radar_detection(struct sk_buff *skb,
5195 struct genl_info *info)
5196{
5197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5198 struct net_device *dev = info->user_ptr[1];
5199 struct wireless_dev *wdev = dev->ieee80211_ptr;
5200 struct cfg80211_chan_def chandef;
5201 int err;
5202
5203 err = nl80211_parse_chandef(rdev, info, &chandef);
5204 if (err)
5205 return err;
5206
5207 if (wdev->cac_started)
5208 return -EBUSY;
5209
5210 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5211 if (err < 0)
5212 return err;
5213
5214 if (err == 0)
5215 return -EINVAL;
5216
5217 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5218 return -EINVAL;
5219
5220 if (!rdev->ops->start_radar_detection)
5221 return -EOPNOTSUPP;
5222
5223 mutex_lock(&rdev->devlist_mtx);
5224 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5225 chandef.chan, CHAN_MODE_SHARED,
5226 BIT(chandef.width));
5227 if (err)
5228 goto err_locked;
5229
5230 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5231 if (!err) {
5232 wdev->channel = chandef.chan;
5233 wdev->cac_started = true;
5234 wdev->cac_start_time = jiffies;
5235 }
5236err_locked:
5237 mutex_unlock(&rdev->devlist_mtx);
5238
5239 return err;
5240}
5241
9720bb3a
JB		 5242static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5243 u32 seq, int flags,
2a519311 5244 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5245 struct wireless_dev *wdev,
5246 struct cfg80211_internal_bss *intbss)
2a519311 5247{
48ab905d 5248 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5249 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5250 void *hdr;
5251 struct nlattr *bss;
8cef2c9d 5252 bool tsf = false;
48ab905d
JB		 5253
5254 ASSERT_WDEV_LOCK(wdev);
2a519311 5255
15e47304 5256 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5257 NL80211_CMD_NEW_SCAN_RESULTS);
5258 if (!hdr)
5259 return -1;
5260
9720bb3a
JB		 5261 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5262
9360ffd1
DM		 5263 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5264 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5265 goto nla_put_failure;
2a519311
JB		 5266
5267 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5268 if (!bss)
5269 goto nla_put_failure;
9360ffd1 5270 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5271 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5272 goto nla_put_failure;
9caf0364
JB		 5273
5274 rcu_read_lock();
5275 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5276 if (ies) {
5277 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5278 goto fail_unlock_rcu;
5279 tsf = true;
5280 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5281 ies->len, ies->data))
5282 goto fail_unlock_rcu;
9caf0364
JB		 5283 }
5284 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5285 if (ies) {
5286 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5287 goto fail_unlock_rcu;
5288 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5289 ies->len, ies->data))
5290 goto fail_unlock_rcu;
9caf0364
JB		 5291 }
5292 rcu_read_unlock();
5293
9360ffd1
DM		 5294 if (res->beacon_interval &&
5295 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5296 goto nla_put_failure;
5297 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5298 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5299 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5300 jiffies_to_msecs(jiffies - intbss->ts)))
5301 goto nla_put_failure;
2a519311 5302
77965c97 5303 switch (rdev->wiphy.signal_type) {
2a519311 5304 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5305 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5306 goto nla_put_failure;
2a519311
JB		 5307 break;
5308 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5309 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5310 goto nla_put_failure;
2a519311
JB		 5311 break;
5312 default:
5313 break;
5314 }
5315
48ab905d 5316 switch (wdev->iftype) {
074ac8df 5317 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5318 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5319 if (intbss == wdev->current_bss &&
5320 nla_put_u32(msg, NL80211_BSS_STATUS,
5321 NL80211_BSS_STATUS_ASSOCIATED))
5322 goto nla_put_failure;
48ab905d
JB		 5323 break;
5324 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5325 if (intbss == wdev->current_bss &&
5326 nla_put_u32(msg, NL80211_BSS_STATUS,
5327 NL80211_BSS_STATUS_IBSS_JOINED))
5328 goto nla_put_failure;
48ab905d
JB		 5329 break;
5330 default:
5331 break;
5332 }
5333
2a519311
JB		 5334 nla_nest_end(msg, bss);
5335
5336 return genlmsg_end(msg, hdr);
5337
8cef2c9d
JB		 5338 fail_unlock_rcu:
5339 rcu_read_unlock();
2a519311
JB		 5340 nla_put_failure:
5341 genlmsg_cancel(msg, hdr);
5342 return -EMSGSIZE;
5343}
5344
5345static int nl80211_dump_scan(struct sk_buff *skb,
5346 struct netlink_callback *cb)
5347{
48ab905d
JB		 5348 struct cfg80211_registered_device *rdev;
5349 struct net_device *dev;
2a519311 5350 struct cfg80211_internal_bss *scan;
48ab905d 5351 struct wireless_dev *wdev;
2a519311
JB		 5352 int start = cb->args[1], idx = 0;
5353 int err;
5354
67748893
JB		 5355 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5356 if (err)
5357 return err;
2a519311 5358
48ab905d 5359 wdev = dev->ieee80211_ptr;
2a519311 5360
48ab905d
JB		 5361 wdev_lock(wdev);
5362 spin_lock_bh(&rdev->bss_lock);
5363 cfg80211_bss_expire(rdev);
5364
9720bb3a
JB		 5365 cb->seq = rdev->bss_generation;
5366
48ab905d 5367 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5368 if (++idx <= start)
5369 continue;
9720bb3a 5370 if (nl80211_send_bss(skb, cb,
2a519311 5371 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5372 rdev, wdev, scan) < 0) {
2a519311 5373 idx--;
67748893 5374 break;
2a519311
JB		 5375 }
5376 }
5377
48ab905d
JB		 5378 spin_unlock_bh(&rdev->bss_lock);
5379 wdev_unlock(wdev);
2a519311
JB		 5380
5381 cb->args[1] = idx;
67748893 5382 nl80211_finish_netdev_dump(rdev);
2a519311 5383
67748893 5384 return skb->len;
2a519311
JB		 5385}
5386
15e47304 5387static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5388 int flags, struct net_device *dev,
5389 struct survey_info *survey)
5390{
5391 void *hdr;
5392 struct nlattr *infoattr;
5393
15e47304 5394 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5395 NL80211_CMD_NEW_SURVEY_RESULTS);
5396 if (!hdr)
5397 return -ENOMEM;
5398
9360ffd1
DM		 5399 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5400 goto nla_put_failure;
61fa713c
HS		 5401
5402 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5403 if (!infoattr)
5404 goto nla_put_failure;
5405
9360ffd1
DM		 5406 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5407 survey->channel->center_freq))
5408 goto nla_put_failure;
5409
5410 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5411 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5412 goto nla_put_failure;
5413 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5414 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5415 goto nla_put_failure;
5416 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5417 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5418 survey->channel_time))
5419 goto nla_put_failure;
5420 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5421 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5422 survey->channel_time_busy))
5423 goto nla_put_failure;
5424 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5425 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5426 survey->channel_time_ext_busy))
5427 goto nla_put_failure;
5428 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5429 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5430 survey->channel_time_rx))
5431 goto nla_put_failure;
5432 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5433 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5434 survey->channel_time_tx))
5435 goto nla_put_failure;
61fa713c
HS		 5436
5437 nla_nest_end(msg, infoattr);
5438
5439 return genlmsg_end(msg, hdr);
5440
5441 nla_put_failure:
5442 genlmsg_cancel(msg, hdr);
5443 return -EMSGSIZE;
5444}
5445
5446static int nl80211_dump_survey(struct sk_buff *skb,
5447 struct netlink_callback *cb)
5448{
5449 struct survey_info survey;
5450 struct cfg80211_registered_device *dev;
5451 struct net_device *netdev;
61fa713c
HS		 5452 int survey_idx = cb->args[1];
5453 int res;
5454
67748893
JB		 5455 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5456 if (res)
5457 return res;
61fa713c
HS		 5458
5459 if (!dev->ops->dump_survey) {
5460 res = -EOPNOTSUPP;
5461 goto out_err;
5462 }
5463
5464 while (1) {
180cdc79
LR		 5465 struct ieee80211_channel *chan;
5466
e35e4d28 5467 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5468 if (res == -ENOENT)
5469 break;
5470 if (res)
5471 goto out_err;
5472
180cdc79
LR		 5473 /* Survey without a channel doesn't make sense */
5474 if (!survey.channel) {
5475 res = -EINVAL;
5476 goto out;
5477 }
5478
5479 chan = ieee80211_get_channel(&dev->wiphy,
5480 survey.channel->center_freq);
5481 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5482 survey_idx++;
5483 continue;
5484 }
5485
61fa713c 5486 if (nl80211_send_survey(skb,
15e47304 5487 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5488 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5489 netdev,
5490 &survey) < 0)
5491 goto out;
5492 survey_idx++;
5493 }
5494
5495 out:
5496 cb->args[1] = survey_idx;
5497 res = skb->len;
5498 out_err:
67748893 5499 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5500 return res;
5501}
5502
b23aa676
SO		 5503static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5504{
5505 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5506 NL80211_WPA_VERSION_2));
5507}
5508
636a5d36
JM		 5509static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5510{
4c476991
JB		 5511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5512 struct net_device *dev = info->user_ptr[1];
19957bb3 5513 struct ieee80211_channel *chan;
e39e5b5e
JM		 5514 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5515 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5516 enum nl80211_auth_type auth_type;
fffd0934 5517 struct key_parse key;
d5cdfacb 5518 bool local_state_change;
636a5d36 5519
f4a11bb0
JB		 5520 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5521 return -EINVAL;
5522
5523 if (!info->attrs[NL80211_ATTR_MAC])
5524 return -EINVAL;
5525
1778092e
JM		 5526 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5527 return -EINVAL;
5528
19957bb3
JB		 5529 if (!info->attrs[NL80211_ATTR_SSID])
5530 return -EINVAL;
5531
5532 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5533 return -EINVAL;
5534
fffd0934
JB		 5535 err = nl80211_parse_key(info, &key);
5536 if (err)
5537 return err;
5538
5539 if (key.idx >= 0) {
e31b8213
JB		 5540 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5541 return -EINVAL;
fffd0934
JB		 5542 if (!key.p.key || !key.p.key_len)
5543 return -EINVAL;
5544 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5545 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5546 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5547 key.p.key_len != WLAN_KEY_LEN_WEP104))
5548 return -EINVAL;
5549 if (key.idx > 4)
5550 return -EINVAL;
5551 } else {
5552 key.p.key_len = 0;
5553 key.p.key = NULL;
5554 }
5555
afea0b7a
JB		 5556 if (key.idx >= 0) {
5557 int i;
5558 bool ok = false;
5559 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5560 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5561 ok = true;
5562 break;
5563 }
5564 }
4c476991
JB		 5565 if (!ok)
5566 return -EINVAL;
afea0b7a
JB		 5567 }
5568
4c476991
JB		 5569 if (!rdev->ops->auth)
5570 return -EOPNOTSUPP;
636a5d36 5571
074ac8df 5572 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5573 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5574 return -EOPNOTSUPP;
eec60b03 5575
19957bb3 5576 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5577 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5578 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5579 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5580 return -EINVAL;
636a5d36 5581
19957bb3
JB		 5582 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5583 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5584
5585 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5586 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5587 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5588 }
5589
19957bb3 5590 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5591 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5592 return -EINVAL;
636a5d36 5593
e39e5b5e
JM		 5594 if (auth_type == NL80211_AUTHTYPE_SAE &&
5595 !info->attrs[NL80211_ATTR_SAE_DATA])
5596 return -EINVAL;
5597
5598 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5599 if (auth_type != NL80211_AUTHTYPE_SAE)
5600 return -EINVAL;
5601 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5602 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5603 /* need to include at least Auth Transaction and Status Code */
5604 if (sae_data_len < 4)
5605 return -EINVAL;
5606 }
5607
d5cdfacb
JM		 5608 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5609
95de817b
JB		 5610 /*
5611 * Since we no longer track auth state, ignore
5612 * requests to only change local state.
5613 */
5614 if (local_state_change)
5615 return 0;
5616
4c476991
JB		 5617 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5618 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5619 key.p.key, key.p.key_len, key.idx,
5620 sae_data, sae_data_len);
636a5d36
JM		 5621}
5622
c0692b8f
JB		 5623static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5624 struct genl_info *info,
3dc27d25
JB		 5625 struct cfg80211_crypto_settings *settings,
5626 int cipher_limit)
b23aa676 5627{
c0b2bbd8
JB		 5628 memset(settings, 0, sizeof(*settings));
5629
b23aa676
SO		 5630 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5631
c0692b8f
JB		 5632 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5633 u16 proto;
5634 proto = nla_get_u16(
5635 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5636 settings->control_port_ethertype = cpu_to_be16(proto);
5637 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5638 proto != ETH_P_PAE)
5639 return -EINVAL;
5640 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5641 settings->control_port_no_encrypt = true;
5642 } else
5643 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5644
b23aa676
SO		 5645 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5646 void *data;
5647 int len, i;
5648
5649 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5650 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5651 settings->n_ciphers_pairwise = len / sizeof(u32);
5652
5653 if (len % sizeof(u32))
5654 return -EINVAL;
5655
3dc27d25 5656 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5657 return -EINVAL;
5658
5659 memcpy(settings->ciphers_pairwise, data, len);
5660
5661 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5662 if (!cfg80211_supported_cipher_suite(
5663 &rdev->wiphy,
b23aa676
SO		 5664 settings->ciphers_pairwise[i]))
5665 return -EINVAL;
5666 }
5667
5668 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5669 settings->cipher_group =
5670 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5671 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5672 settings->cipher_group))
b23aa676
SO		 5673 return -EINVAL;
5674 }
5675
5676 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5677 settings->wpa_versions =
5678 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5679 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5680 return -EINVAL;
5681 }
5682
5683 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5684 void *data;
6d30240e 5685 int len;
b23aa676
SO		 5686
5687 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5688 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5689 settings->n_akm_suites = len / sizeof(u32);
5690
5691 if (len % sizeof(u32))
5692 return -EINVAL;
5693
1b9ca027
JM		 5694 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5695 return -EINVAL;
5696
b23aa676 5697 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5698 }
5699
5700 return 0;
5701}
5702
636a5d36
JM		 5703static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5704{
4c476991
JB		 5705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5706 struct net_device *dev = info->user_ptr[1];
19957bb3 5707 struct cfg80211_crypto_settings crypto;
f444de05 5708 struct ieee80211_channel *chan;
3e5d7649 5709 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5710 int err, ssid_len, ie_len = 0;
5711 bool use_mfp = false;
7e7c8926
BG		 5712 u32 flags = 0;
5713 struct ieee80211_ht_cap *ht_capa = NULL;
5714 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5715
f4a11bb0
JB		 5716 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5717 return -EINVAL;
5718
5719 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5720 !info->attrs[NL80211_ATTR_SSID] ||
5721 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5722 return -EINVAL;
5723
4c476991
JB		 5724 if (!rdev->ops->assoc)
5725 return -EOPNOTSUPP;
636a5d36 5726
074ac8df 5727 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5728 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5729 return -EOPNOTSUPP;
eec60b03 5730
19957bb3 5731 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5732
19957bb3
JB		 5733 chan = ieee80211_get_channel(&rdev->wiphy,
5734 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5735 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5736 return -EINVAL;
636a5d36 5737
19957bb3
JB		 5738 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5739 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5740
5741 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5742 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5743 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5744 }
5745
dc6382ce 5746 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5747 enum nl80211_mfp mfp =
dc6382ce 5748 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5749 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5750 use_mfp = true;
4c476991
JB		 5751 else if (mfp != NL80211_MFP_NO)
5752 return -EINVAL;
dc6382ce
JM		 5753 }
5754
3e5d7649
JB		 5755 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5756 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5757
7e7c8926
BG		 5758 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5759 flags |= ASSOC_REQ_DISABLE_HT;
5760
5761 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5762 ht_capa_mask =
5763 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5764
5765 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5766 if (!ht_capa_mask)
5767 return -EINVAL;
5768 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5769 }
5770
c0692b8f 5771 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5772 if (!err)
3e5d7649
JB		 5773 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5774 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5775 &crypto, flags, ht_capa,
5776 ht_capa_mask);
636a5d36 5777
636a5d36
JM		 5778 return err;
5779}
5780
5781static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5782{
4c476991
JB		 5783 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5784 struct net_device *dev = info->user_ptr[1];
19957bb3 5785 const u8 *ie = NULL, *bssid;
4c476991 5786 int ie_len = 0;
19957bb3 5787 u16 reason_code;
d5cdfacb 5788 bool local_state_change;
636a5d36 5789
f4a11bb0
JB		 5790 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5791 return -EINVAL;
5792
5793 if (!info->attrs[NL80211_ATTR_MAC])
5794 return -EINVAL;
5795
5796 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5797 return -EINVAL;
5798
4c476991
JB		 5799 if (!rdev->ops->deauth)
5800 return -EOPNOTSUPP;
636a5d36 5801
074ac8df 5802 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5803 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5804 return -EOPNOTSUPP;
eec60b03 5805
19957bb3 5806 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5807
19957bb3
JB		 5808 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5809 if (reason_code == 0) {
f4a11bb0 5810 /* Reason Code 0 is reserved */
4c476991 5811 return -EINVAL;
255e737e 5812 }
636a5d36
JM		 5813
5814 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5815 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5816 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5817 }
5818
d5cdfacb
JM		 5819 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5820
4c476991
JB		 5821 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5822 local_state_change);
636a5d36
JM		 5823}
5824
5825static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5826{
4c476991
JB		 5827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5828 struct net_device *dev = info->user_ptr[1];
19957bb3 5829 const u8 *ie = NULL, *bssid;
4c476991 5830 int ie_len = 0;
19957bb3 5831 u16 reason_code;
d5cdfacb 5832 bool local_state_change;
636a5d36 5833
f4a11bb0
JB		 5834 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5835 return -EINVAL;
5836
5837 if (!info->attrs[NL80211_ATTR_MAC])
5838 return -EINVAL;
5839
5840 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5841 return -EINVAL;
5842
4c476991
JB		 5843 if (!rdev->ops->disassoc)
5844 return -EOPNOTSUPP;
636a5d36 5845
074ac8df 5846 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5847 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5848 return -EOPNOTSUPP;
eec60b03 5849
19957bb3 5850 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5851
19957bb3
JB		 5852 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5853 if (reason_code == 0) {
f4a11bb0 5854 /* Reason Code 0 is reserved */
4c476991 5855 return -EINVAL;
255e737e 5856 }
636a5d36
JM		 5857
5858 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5859 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5860 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5861 }
5862
d5cdfacb
JM		 5863 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5864
4c476991
JB		 5865 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5866 local_state_change);
636a5d36
JM		 5867}
5868
dd5b4cc7
FF		 5869static bool
5870nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5871 int mcast_rate[IEEE80211_NUM_BANDS],
5872 int rateval)
5873{
5874 struct wiphy *wiphy = &rdev->wiphy;
5875 bool found = false;
5876 int band, i;
5877
5878 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5879 struct ieee80211_supported_band *sband;
5880
5881 sband = wiphy->bands[band];
5882 if (!sband)
5883 continue;
5884
5885 for (i = 0; i < sband->n_bitrates; i++) {
5886 if (sband->bitrates[i].bitrate == rateval) {
5887 mcast_rate[band] = i + 1;
5888 found = true;
5889 break;
5890 }
5891 }
5892 }
5893
5894 return found;
5895}
5896
04a773ad
JB		 5897static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5898{
4c476991
JB		 5899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5900 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5901 struct cfg80211_ibss_params ibss;
5902 struct wiphy *wiphy;
fffd0934 5903 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5904 int err;
5905
8e30bc55
JB		 5906 memset(&ibss, 0, sizeof(ibss));
5907
04a773ad
JB		 5908 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5909 return -EINVAL;
5910
683b6d3b 5911 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5912 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5913 return -EINVAL;
5914
8e30bc55
JB		 5915 ibss.beacon_interval = 100;
5916
5917 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5918 ibss.beacon_interval =
5919 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5920 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5921 return -EINVAL;
5922 }
5923
4c476991
JB		 5924 if (!rdev->ops->join_ibss)
5925 return -EOPNOTSUPP;
04a773ad 5926
4c476991
JB		 5927 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5928 return -EOPNOTSUPP;
04a773ad 5929
79c97e97 5930 wiphy = &rdev->wiphy;
04a773ad 5931
39193498 5932 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5933 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5934
5935 if (!is_valid_ether_addr(ibss.bssid))
5936 return -EINVAL;
5937 }
04a773ad
JB		 5938 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5939 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5940
5941 if (info->attrs[NL80211_ATTR_IE]) {
5942 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5943 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5944 }
5945
683b6d3b
JB		 5946 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5947 if (err)
5948 return err;
04a773ad 5949
683b6d3b 5950 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5951 return -EINVAL;
5952
db9c64cf
JB		 5953 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5954 return -EINVAL;
5955 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5956 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5957 return -EINVAL;
db9c64cf 5958
04a773ad 5959 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5960 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5961
fbd2c8dc
TP		 5962 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5963 u8 *rates =
5964 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5965 int n_rates =
5966 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5967 struct ieee80211_supported_band *sband =
683b6d3b 5968 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5969
34850ab2
JB		 5970 err = ieee80211_get_ratemask(sband, rates, n_rates,
5971 &ibss.basic_rates);
5972 if (err)
5973 return err;
fbd2c8dc 5974 }
dd5b4cc7
FF		 5975
5976 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5977 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5978 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5979 return -EINVAL;
fbd2c8dc 5980
4c476991 5981 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5982 bool no_ht = false;
5983
4c476991 5984 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5985 info->attrs[NL80211_ATTR_KEYS],
5986 &no_ht);
4c476991
JB		 5987 if (IS_ERR(connkeys))
5988 return PTR_ERR(connkeys);
de7044ee 5989
3d9d1d66
JB		 5990 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5991 no_ht) {
de7044ee
SM		 5992 kfree(connkeys);
5993 return -EINVAL;
5994 }
4c476991 5995 }
04a773ad 5996
267335d6
AQ		 5997 ibss.control_port =
5998 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5999
4c476991 6000 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6001 if (err)
6002 kfree(connkeys);
04a773ad
JB		 6003 return err;
6004}
6005
6006static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6007{
4c476991
JB		 6008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6009 struct net_device *dev = info->user_ptr[1];
04a773ad 6010
4c476991
JB		 6011 if (!rdev->ops->leave_ibss)
6012 return -EOPNOTSUPP;
04a773ad 6013
4c476991
JB		 6014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6015 return -EOPNOTSUPP;
04a773ad 6016
4c476991 6017 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6018}
6019
f4e583c8
AQ		 6020static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6021{
6022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6023 struct net_device *dev = info->user_ptr[1];
6024 int mcast_rate[IEEE80211_NUM_BANDS];
6025 u32 nla_rate;
6026 int err;
6027
6028 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6030 return -EOPNOTSUPP;
6031
6032 if (!rdev->ops->set_mcast_rate)
6033 return -EOPNOTSUPP;
6034
6035 memset(mcast_rate, 0, sizeof(mcast_rate));
6036
6037 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6038 return -EINVAL;
6039
6040 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6041 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6042 return -EINVAL;
6043
6044 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6045
6046 return err;
6047}
6048
6049
aff89a9b
JB		 6050#ifdef CONFIG_NL80211_TESTMODE
6051static struct genl_multicast_group nl80211_testmode_mcgrp = {
6052 .name = "testmode",
6053};
6054
6055static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6056{
4c476991 6057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6058 int err;
6059
6060 if (!info->attrs[NL80211_ATTR_TESTDATA])
6061 return -EINVAL;
6062
aff89a9b
JB		 6063 err = -EOPNOTSUPP;
6064 if (rdev->ops->testmode_cmd) {
6065 rdev->testmode_info = info;
e35e4d28 6066 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6067 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6068 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6069 rdev->testmode_info = NULL;
6070 }
6071
aff89a9b
JB		 6072 return err;
6073}
6074
71063f0e
WYG		 6075static int nl80211_testmode_dump(struct sk_buff *skb,
6076 struct netlink_callback *cb)
6077{
00918d33 6078 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6079 int err;
6080 long phy_idx;
6081 void *data = NULL;
6082 int data_len = 0;
6083
6084 if (cb->args[0]) {
6085 /*
6086 * 0 is a valid index, but not valid for args[0],
6087 * so we need to offset by 1.
6088 */
6089 phy_idx = cb->args[0] - 1;
6090 } else {
6091 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6092 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6093 nl80211_policy);
6094 if (err)
6095 return err;
00918d33 6096
2bd7e35d
JB		 6097 mutex_lock(&cfg80211_mutex);
6098 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6099 nl80211_fam.attrbuf);
6100 if (IS_ERR(rdev)) {
6101 mutex_unlock(&cfg80211_mutex);
6102 return PTR_ERR(rdev);
00918d33 6103 }
2bd7e35d
JB		 6104 phy_idx = rdev->wiphy_idx;
6105 rdev = NULL;
6106 mutex_unlock(&cfg80211_mutex);
6107
71063f0e
WYG		 6108 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6109 cb->args[1] =
6110 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6111 }
6112
6113 if (cb->args[1]) {
6114 data = nla_data((void *)cb->args[1]);
6115 data_len = nla_len((void *)cb->args[1]);
6116 }
6117
6118 mutex_lock(&cfg80211_mutex);
00918d33
JB		 6119 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6120 if (!rdev) {
71063f0e
WYG		 6121 mutex_unlock(&cfg80211_mutex);
6122 return -ENOENT;
6123 }
00918d33 6124 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 6125 mutex_unlock(&cfg80211_mutex);
6126
00918d33 6127 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6128 err = -EOPNOTSUPP;
6129 goto out_err;
6130 }
6131
6132 while (1) {
15e47304 6133 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6134 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6135 NL80211_CMD_TESTMODE);
6136 struct nlattr *tmdata;
6137
9360ffd1 6138 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6139 genlmsg_cancel(skb, hdr);
6140 break;
6141 }
6142
6143 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6144 if (!tmdata) {
6145 genlmsg_cancel(skb, hdr);
6146 break;
6147 }
e35e4d28 6148 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6149 nla_nest_end(skb, tmdata);
6150
6151 if (err == -ENOBUFS || err == -ENOENT) {
6152 genlmsg_cancel(skb, hdr);
6153 break;
6154 } else if (err) {
6155 genlmsg_cancel(skb, hdr);
6156 goto out_err;
6157 }
6158
6159 genlmsg_end(skb, hdr);
6160 }
6161
6162 err = skb->len;
6163 /* see above */
6164 cb->args[0] = phy_idx + 1;
6165 out_err:
00918d33 6166 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 6167 return err;
6168}
6169
aff89a9b
JB		 6170static struct sk_buff *
6171__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6172 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6173{
6174 struct sk_buff *skb;
6175 void *hdr;
6176 struct nlattr *data;
6177
6178 skb = nlmsg_new(approxlen + 100, gfp);
6179 if (!skb)
6180 return NULL;
6181
15e47304 6182 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6183 if (!hdr) {
6184 kfree_skb(skb);
6185 return NULL;
6186 }
6187
9360ffd1
DM		 6188 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6189 goto nla_put_failure;
aff89a9b
JB		 6190 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6191
6192 ((void **)skb->cb)[0] = rdev;
6193 ((void **)skb->cb)[1] = hdr;
6194 ((void **)skb->cb)[2] = data;
6195
6196 return skb;
6197
6198 nla_put_failure:
6199 kfree_skb(skb);
6200 return NULL;
6201}
6202
6203struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6204 int approxlen)
6205{
6206 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6207
6208 if (WARN_ON(!rdev->testmode_info))
6209 return NULL;
6210
6211 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6212 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6213 rdev->testmode_info->snd_seq,
6214 GFP_KERNEL);
6215}
6216EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6217
6218int cfg80211_testmode_reply(struct sk_buff *skb)
6219{
6220 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6221 void *hdr = ((void **)skb->cb)[1];
6222 struct nlattr *data = ((void **)skb->cb)[2];
6223
6224 if (WARN_ON(!rdev->testmode_info)) {
6225 kfree_skb(skb);
6226 return -EINVAL;
6227 }
6228
6229 nla_nest_end(skb, data);
6230 genlmsg_end(skb, hdr);
6231 return genlmsg_reply(skb, rdev->testmode_info);
6232}
6233EXPORT_SYMBOL(cfg80211_testmode_reply);
6234
6235struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6236 int approxlen, gfp_t gfp)
6237{
6238 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6239
6240 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6241}
6242EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6243
6244void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6245{
6246 void *hdr = ((void **)skb->cb)[1];
6247 struct nlattr *data = ((void **)skb->cb)[2];
6248
6249 nla_nest_end(skb, data);
6250 genlmsg_end(skb, hdr);
6251 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6252}
6253EXPORT_SYMBOL(cfg80211_testmode_event);
6254#endif
6255
b23aa676
SO		 6256static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6257{
4c476991
JB		 6258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6259 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6260 struct cfg80211_connect_params connect;
6261 struct wiphy *wiphy;
fffd0934 6262 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6263 int err;
6264
6265 memset(&connect, 0, sizeof(connect));
6266
6267 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6268 return -EINVAL;
6269
6270 if (!info->attrs[NL80211_ATTR_SSID] ||
6271 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6272 return -EINVAL;
6273
6274 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6275 connect.auth_type =
6276 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6277 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6278 NL80211_CMD_CONNECT))
b23aa676
SO		 6279 return -EINVAL;
6280 } else
6281 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6282
6283 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6284
c0692b8f 6285 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6286 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6287 if (err)
6288 return err;
b23aa676 6289
074ac8df 6290 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6291 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6292 return -EOPNOTSUPP;
b23aa676 6293
79c97e97 6294 wiphy = &rdev->wiphy;
b23aa676 6295
4486ea98
BS		 6296 connect.bg_scan_period = -1;
6297 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6298 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6299 connect.bg_scan_period =
6300 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6301 }
6302
b23aa676
SO		 6303 if (info->attrs[NL80211_ATTR_MAC])
6304 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6305 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6306 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6307
6308 if (info->attrs[NL80211_ATTR_IE]) {
6309 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6310 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6311 }
6312
cee00a95
JM		 6313 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6314 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6315 if (connect.mfp != NL80211_MFP_REQUIRED &&
6316 connect.mfp != NL80211_MFP_NO)
6317 return -EINVAL;
6318 } else {
6319 connect.mfp = NL80211_MFP_NO;
6320 }
6321
b23aa676
SO		 6322 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6323 connect.channel =
6324 ieee80211_get_channel(wiphy,
6325 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6326 if (!connect.channel ||
4c476991
JB		 6327 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6328 return -EINVAL;
b23aa676
SO		 6329 }
6330
fffd0934
JB		 6331 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6332 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6333 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6334 if (IS_ERR(connkeys))
6335 return PTR_ERR(connkeys);
fffd0934
JB		 6336 }
6337
7e7c8926
BG		 6338 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6339 connect.flags |= ASSOC_REQ_DISABLE_HT;
6340
6341 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6342 memcpy(&connect.ht_capa_mask,
6343 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6344 sizeof(connect.ht_capa_mask));
6345
6346 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6347 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6348 kfree(connkeys);
7e7c8926 6349 return -EINVAL;
b4e4f47e 6350 }
7e7c8926
BG		 6351 memcpy(&connect.ht_capa,
6352 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6353 sizeof(connect.ht_capa));
6354 }
6355
fffd0934 6356 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6357 if (err)
6358 kfree(connkeys);
b23aa676
SO		 6359 return err;
6360}
6361
6362static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6363{
4c476991
JB		 6364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6365 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6366 u16 reason;
6367
6368 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6369 reason = WLAN_REASON_DEAUTH_LEAVING;
6370 else
6371 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6372
6373 if (reason == 0)
6374 return -EINVAL;
6375
074ac8df 6376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6377 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6378 return -EOPNOTSUPP;
b23aa676 6379
4c476991 6380 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6381}
6382
463d0183
JB		 6383static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6384{
4c476991 6385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6386 struct net *net;
6387 int err;
6388 u32 pid;
6389
6390 if (!info->attrs[NL80211_ATTR_PID])
6391 return -EINVAL;
6392
6393 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6394
463d0183 6395 net = get_net_ns_by_pid(pid);
4c476991
JB		 6396 if (IS_ERR(net))
6397 return PTR_ERR(net);
463d0183
JB		 6398
6399 err = 0;
6400
6401 /* check if anything to do */
4c476991
JB		 6402 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6403 err = cfg80211_switch_netns(rdev, net);
463d0183 6404
463d0183 6405 put_net(net);
463d0183
JB		 6406 return err;
6407}
6408
67fbb16b
SO		 6409static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6410{
4c476991 6411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6412 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6413 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6414 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6415 struct cfg80211_pmksa pmksa;
6416
6417 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6418
6419 if (!info->attrs[NL80211_ATTR_MAC])
6420 return -EINVAL;
6421
6422 if (!info->attrs[NL80211_ATTR_PMKID])
6423 return -EINVAL;
6424
67fbb16b
SO		 6425 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6426 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6427
074ac8df 6428 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6429 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6430 return -EOPNOTSUPP;
67fbb16b
SO		 6431
6432 switch (info->genlhdr->cmd) {
6433 case NL80211_CMD_SET_PMKSA:
6434 rdev_ops = rdev->ops->set_pmksa;
6435 break;
6436 case NL80211_CMD_DEL_PMKSA:
6437 rdev_ops = rdev->ops->del_pmksa;
6438 break;
6439 default:
6440 WARN_ON(1);
6441 break;
6442 }
6443
4c476991
JB		 6444 if (!rdev_ops)
6445 return -EOPNOTSUPP;
67fbb16b 6446
4c476991 6447 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6448}
6449
6450static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6451{
4c476991
JB		 6452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6453 struct net_device *dev = info->user_ptr[1];
67fbb16b 6454
074ac8df 6455 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6456 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6457 return -EOPNOTSUPP;
67fbb16b 6458
4c476991
JB		 6459 if (!rdev->ops->flush_pmksa)
6460 return -EOPNOTSUPP;
67fbb16b 6461
e35e4d28 6462 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6463}
6464
109086ce
AN		 6465static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6466{
6467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6468 struct net_device *dev = info->user_ptr[1];
6469 u8 action_code, dialog_token;
6470 u16 status_code;
6471 u8 *peer;
6472
6473 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6474 !rdev->ops->tdls_mgmt)
6475 return -EOPNOTSUPP;
6476
6477 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6478 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6479 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6480 !info->attrs[NL80211_ATTR_IE] ||
6481 !info->attrs[NL80211_ATTR_MAC])
6482 return -EINVAL;
6483
6484 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6485 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6486 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6487 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6488
e35e4d28
HG		 6489 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6490 dialog_token, status_code,
6491 nla_data(info->attrs[NL80211_ATTR_IE]),
6492 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6493}
6494
6495static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6496{
6497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6498 struct net_device *dev = info->user_ptr[1];
6499 enum nl80211_tdls_operation operation;
6500 u8 *peer;
6501
6502 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6503 !rdev->ops->tdls_oper)
6504 return -EOPNOTSUPP;
6505
6506 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6507 !info->attrs[NL80211_ATTR_MAC])
6508 return -EINVAL;
6509
6510 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6511 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6512
e35e4d28 6513 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6514}
6515
9588bbd5
JM		 6516static int nl80211_remain_on_channel(struct sk_buff *skb,
6517 struct genl_info *info)
6518{
4c476991 6519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6520 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6521 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6522 struct sk_buff *msg;
6523 void *hdr;
6524 u64 cookie;
683b6d3b 6525 u32 duration;
9588bbd5
JM		 6526 int err;
6527
6528 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6529 !info->attrs[NL80211_ATTR_DURATION])
6530 return -EINVAL;
6531
6532 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6533
ebf348fc
JB		 6534 if (!rdev->ops->remain_on_channel ||
6535 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6536 return -EOPNOTSUPP;
6537
9588bbd5 6538 /*
ebf348fc
JB		 6539 * We should be on that channel for at least a minimum amount of
6540 * time (10ms) but no longer than the driver supports.
9588bbd5 6541 */
ebf348fc 6542 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6543 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6544 return -EINVAL;
6545
683b6d3b
JB		 6546 err = nl80211_parse_chandef(rdev, info, &chandef);
6547 if (err)
6548 return err;
9588bbd5
JM		 6549
6550 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6551 if (!msg)
6552 return -ENOMEM;
9588bbd5 6553
15e47304 6554 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6555 NL80211_CMD_REMAIN_ON_CHANNEL);
6556
6557 if (IS_ERR(hdr)) {
6558 err = PTR_ERR(hdr);
6559 goto free_msg;
6560 }
6561
683b6d3b
JB		 6562 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6563 duration, &cookie);
9588bbd5
JM		 6564
6565 if (err)
6566 goto free_msg;
6567
9360ffd1
DM		 6568 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6569 goto nla_put_failure;
9588bbd5
JM		 6570
6571 genlmsg_end(msg, hdr);
4c476991
JB		 6572
6573 return genlmsg_reply(msg, info);
9588bbd5
JM		 6574
6575 nla_put_failure:
6576 err = -ENOBUFS;
6577 free_msg:
6578 nlmsg_free(msg);
9588bbd5
JM		 6579 return err;
6580}
6581
6582static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6583 struct genl_info *info)
6584{
4c476991 6585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6586 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6587 u64 cookie;
9588bbd5
JM		 6588
6589 if (!info->attrs[NL80211_ATTR_COOKIE])
6590 return -EINVAL;
6591
4c476991
JB		 6592 if (!rdev->ops->cancel_remain_on_channel)
6593 return -EOPNOTSUPP;
9588bbd5 6594
9588bbd5
JM		 6595 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6596
e35e4d28 6597 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6598}
6599
13ae75b1
JM		 6600static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6601 u8 *rates, u8 rates_len)
6602{
6603 u8 i;
6604 u32 mask = 0;
6605
6606 for (i = 0; i < rates_len; i++) {
6607 int rate = (rates[i] & 0x7f) * 5;
6608 int ridx;
6609 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6610 struct ieee80211_rate *srate =
6611 &sband->bitrates[ridx];
6612 if (rate == srate->bitrate) {
6613 mask |= 1 << ridx;
6614 break;
6615 }
6616 }
6617 if (ridx == sband->n_bitrates)
6618 return 0; /* rate not found */
6619 }
6620
6621 return mask;
6622}
6623
24db78c0
SW		 6624static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6625 u8 *rates, u8 rates_len,
6626 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6627{
6628 u8 i;
6629
6630 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6631
6632 for (i = 0; i < rates_len; i++) {
6633 int ridx, rbit;
6634
6635 ridx = rates[i] / 8;
6636 rbit = BIT(rates[i] % 8);
6637
6638 /* check validity */
910570b5 6639 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6640 return false;
6641
6642 /* check availability */
6643 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6644 mcs[ridx] |= rbit;
6645 else
6646 return false;
6647 }
6648
6649 return true;
6650}
6651
b54452b0 6652static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6653 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6654 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6655 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6656 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6657};
6658
6659static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6660 struct genl_info *info)
6661{
6662 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6664 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6665 int rem, i;
6666 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6667 struct nlattr *tx_rates;
6668 struct ieee80211_supported_band *sband;
6669
6670 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6671 return -EINVAL;
6672
4c476991
JB		 6673 if (!rdev->ops->set_bitrate_mask)
6674 return -EOPNOTSUPP;
13ae75b1
JM		 6675
6676 memset(&mask, 0, sizeof(mask));
6677 /* Default to all rates enabled */
6678 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6679 sband = rdev->wiphy.bands[i];
6680 mask.control[i].legacy =
6681 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6682 if (sband)
6683 memcpy(mask.control[i].mcs,
6684 sband->ht_cap.mcs.rx_mask,
6685 sizeof(mask.control[i].mcs));
6686 else
6687 memset(mask.control[i].mcs, 0,
6688 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6689 }
6690
6691 /*
6692 * The nested attribute uses enum nl80211_band as the index. This maps
6693 * directly to the enum ieee80211_band values used in cfg80211.
6694 */
24db78c0 6695 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6696 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6697 {
6698 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6699 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6700 return -EINVAL;
13ae75b1 6701 sband = rdev->wiphy.bands[band];
4c476991
JB		 6702 if (sband == NULL)
6703 return -EINVAL;
13ae75b1
JM		 6704 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6705 nla_len(tx_rates), nl80211_txattr_policy);
6706 if (tb[NL80211_TXRATE_LEGACY]) {
6707 mask.control[band].legacy = rateset_to_mask(
6708 sband,
6709 nla_data(tb[NL80211_TXRATE_LEGACY]),
6710 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6711 if ((mask.control[band].legacy == 0) &&
6712 nla_len(tb[NL80211_TXRATE_LEGACY]))
6713 return -EINVAL;
24db78c0
SW		 6714 }
6715 if (tb[NL80211_TXRATE_MCS]) {
6716 if (!ht_rateset_to_mask(
6717 sband,
6718 nla_data(tb[NL80211_TXRATE_MCS]),
6719 nla_len(tb[NL80211_TXRATE_MCS]),
6720 mask.control[band].mcs))
6721 return -EINVAL;
6722 }
6723
6724 if (mask.control[band].legacy == 0) {
6725 /* don't allow empty legacy rates if HT
6726 * is not even supported. */
6727 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6728 return -EINVAL;
6729
6730 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6731 if (mask.control[band].mcs[i])
6732 break;
6733
6734 /* legacy and mcs rates may not be both empty */
6735 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6736 return -EINVAL;
13ae75b1
JM		 6737 }
6738 }
6739
e35e4d28 6740 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6741}
6742
2e161f78 6743static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6744{
4c476991 6745 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6746 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6747 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6748
6749 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6750 return -EINVAL;
6751
2e161f78
JB		 6752 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6753 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6754
71bbc994
JB		 6755 switch (wdev->iftype) {
6756 case NL80211_IFTYPE_STATION:
6757 case NL80211_IFTYPE_ADHOC:
6758 case NL80211_IFTYPE_P2P_CLIENT:
6759 case NL80211_IFTYPE_AP:
6760 case NL80211_IFTYPE_AP_VLAN:
6761 case NL80211_IFTYPE_MESH_POINT:
6762 case NL80211_IFTYPE_P2P_GO:
98104fde 6763 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6764 break;
6765 default:
4c476991 6766 return -EOPNOTSUPP;
71bbc994 6767 }
026331c4
JM		 6768
6769 /* not much point in registering if we can't reply */
4c476991
JB		 6770 if (!rdev->ops->mgmt_tx)
6771 return -EOPNOTSUPP;
026331c4 6772
15e47304 6773 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6774 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6775 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6776}
6777
2e161f78 6778static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6779{
4c476991 6780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6781 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6782 struct cfg80211_chan_def chandef;
026331c4 6783 int err;
d64d373f 6784 void *hdr = NULL;
026331c4 6785 u64 cookie;
e247bd90 6786 struct sk_buff *msg = NULL;
f7ca38df 6787 unsigned int wait = 0;
e247bd90
JB		 6788 bool offchan, no_cck, dont_wait_for_ack;
6789
6790 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6791
683b6d3b 6792 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6793 return -EINVAL;
6794
4c476991
JB		 6795 if (!rdev->ops->mgmt_tx)
6796 return -EOPNOTSUPP;
026331c4 6797
71bbc994
JB		 6798 switch (wdev->iftype) {
6799 case NL80211_IFTYPE_STATION:
6800 case NL80211_IFTYPE_ADHOC:
6801 case NL80211_IFTYPE_P2P_CLIENT:
6802 case NL80211_IFTYPE_AP:
6803 case NL80211_IFTYPE_AP_VLAN:
6804 case NL80211_IFTYPE_MESH_POINT:
6805 case NL80211_IFTYPE_P2P_GO:
98104fde 6806 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6807 break;
6808 default:
4c476991 6809 return -EOPNOTSUPP;
71bbc994 6810 }
026331c4 6811
f7ca38df 6812 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6813 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6814 return -EINVAL;
6815 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6816
6817 /*
6818 * We should wait on the channel for at least a minimum amount
6819 * of time (10ms) but no longer than the driver supports.
6820 */
6821 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6822 wait > rdev->wiphy.max_remain_on_channel_duration)
6823 return -EINVAL;
6824
f7ca38df
JB		 6825 }
6826
f7ca38df
JB		 6827 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6828
7c4ef712
JB		 6829 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6830 return -EINVAL;
6831
e9f935e3
RM		 6832 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6833
683b6d3b
JB		 6834 err = nl80211_parse_chandef(rdev, info, &chandef);
6835 if (err)
6836 return err;
026331c4 6837
e247bd90
JB		 6838 if (!dont_wait_for_ack) {
6839 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6840 if (!msg)
6841 return -ENOMEM;
026331c4 6842
15e47304 6843 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6844 NL80211_CMD_FRAME);
026331c4 6845
e247bd90
JB		 6846 if (IS_ERR(hdr)) {
6847 err = PTR_ERR(hdr);
6848 goto free_msg;
6849 }
026331c4 6850 }
e247bd90 6851
683b6d3b 6852 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6853 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6854 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6855 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6856 if (err)
6857 goto free_msg;
6858
e247bd90 6859 if (msg) {
9360ffd1
DM		 6860 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6861 goto nla_put_failure;
026331c4 6862
e247bd90
JB		 6863 genlmsg_end(msg, hdr);
6864 return genlmsg_reply(msg, info);
6865 }
6866
6867 return 0;
026331c4
JM		 6868
6869 nla_put_failure:
6870 err = -ENOBUFS;
6871 free_msg:
6872 nlmsg_free(msg);
026331c4
JM		 6873 return err;
6874}
6875
f7ca38df
JB		 6876static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6877{
6878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6879 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6880 u64 cookie;
6881
6882 if (!info->attrs[NL80211_ATTR_COOKIE])
6883 return -EINVAL;
6884
6885 if (!rdev->ops->mgmt_tx_cancel_wait)
6886 return -EOPNOTSUPP;
6887
71bbc994
JB		 6888 switch (wdev->iftype) {
6889 case NL80211_IFTYPE_STATION:
6890 case NL80211_IFTYPE_ADHOC:
6891 case NL80211_IFTYPE_P2P_CLIENT:
6892 case NL80211_IFTYPE_AP:
6893 case NL80211_IFTYPE_AP_VLAN:
6894 case NL80211_IFTYPE_P2P_GO:
98104fde 6895 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6896 break;
6897 default:
f7ca38df 6898 return -EOPNOTSUPP;
71bbc994 6899 }
f7ca38df
JB		 6900
6901 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6902
e35e4d28 6903 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6904}
6905
ffb9eb3d
KV		 6906static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6907{
4c476991 6908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6909 struct wireless_dev *wdev;
4c476991 6910 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6911 u8 ps_state;
6912 bool state;
6913 int err;
6914
4c476991
JB		 6915 if (!info->attrs[NL80211_ATTR_PS_STATE])
6916 return -EINVAL;
ffb9eb3d
KV		 6917
6918 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6919
4c476991
JB		 6920 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6921 return -EINVAL;
ffb9eb3d
KV		 6922
6923 wdev = dev->ieee80211_ptr;
6924
4c476991
JB		 6925 if (!rdev->ops->set_power_mgmt)
6926 return -EOPNOTSUPP;
ffb9eb3d
KV		 6927
6928 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6929
6930 if (state == wdev->ps)
4c476991 6931 return 0;
ffb9eb3d 6932
e35e4d28 6933 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6934 if (!err)
6935 wdev->ps = state;
ffb9eb3d
KV		 6936 return err;
6937}
6938
6939static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6940{
4c476991 6941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6942 enum nl80211_ps_state ps_state;
6943 struct wireless_dev *wdev;
4c476991 6944 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6945 struct sk_buff *msg;
6946 void *hdr;
6947 int err;
6948
ffb9eb3d
KV		 6949 wdev = dev->ieee80211_ptr;
6950
4c476991
JB		 6951 if (!rdev->ops->set_power_mgmt)
6952 return -EOPNOTSUPP;
ffb9eb3d
KV		 6953
6954 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6955 if (!msg)
6956 return -ENOMEM;
ffb9eb3d 6957
15e47304 6958 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6959 NL80211_CMD_GET_POWER_SAVE);
6960 if (!hdr) {
4c476991 6961 err = -ENOBUFS;
ffb9eb3d
KV		 6962 goto free_msg;
6963 }
6964
6965 if (wdev->ps)
6966 ps_state = NL80211_PS_ENABLED;
6967 else
6968 ps_state = NL80211_PS_DISABLED;
6969
9360ffd1
DM		 6970 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6971 goto nla_put_failure;
ffb9eb3d
KV		 6972
6973 genlmsg_end(msg, hdr);
4c476991 6974 return genlmsg_reply(msg, info);
ffb9eb3d 6975
4c476991 6976 nla_put_failure:
ffb9eb3d 6977 err = -ENOBUFS;
4c476991 6978 free_msg:
ffb9eb3d 6979 nlmsg_free(msg);
ffb9eb3d
KV		 6980 return err;
6981}
6982
d6dc1a38
JO		 6983static struct nla_policy
6984nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6985 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6986 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6987 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6988 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6989 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6990 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6991};
6992
84f10708 6993static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6994 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 6995{
6996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6997 struct wireless_dev *wdev;
6998 struct net_device *dev = info->user_ptr[1];
6999
d9d8b019 7000 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7001 return -EINVAL;
7002
7003 wdev = dev->ieee80211_ptr;
7004
7005 if (!rdev->ops->set_cqm_txe_config)
7006 return -EOPNOTSUPP;
7007
7008 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7009 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7010 return -EOPNOTSUPP;
7011
e35e4d28 7012 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7013}
7014
d6dc1a38
JO		 7015static int nl80211_set_cqm_rssi(struct genl_info *info,
7016 s32 threshold, u32 hysteresis)
7017{
4c476991 7018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7019 struct wireless_dev *wdev;
4c476991 7020 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7021
7022 if (threshold > 0)
7023 return -EINVAL;
7024
d6dc1a38
JO		 7025 wdev = dev->ieee80211_ptr;
7026
4c476991
JB		 7027 if (!rdev->ops->set_cqm_rssi_config)
7028 return -EOPNOTSUPP;
d6dc1a38 7029
074ac8df 7030 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7031 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7032 return -EOPNOTSUPP;
d6dc1a38 7033
e35e4d28 7034 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7035}
7036
7037static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7038{
7039 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7040 struct nlattr *cqm;
7041 int err;
7042
7043 cqm = info->attrs[NL80211_ATTR_CQM];
7044 if (!cqm) {
7045 err = -EINVAL;
7046 goto out;
7047 }
7048
7049 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7050 nl80211_attr_cqm_policy);
7051 if (err)
7052 goto out;
7053
7054 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7055 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7056 s32 threshold;
7057 u32 hysteresis;
7058 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7059 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7060 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7061 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7062 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7063 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7064 u32 rate, pkts, intvl;
7065 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7066 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7067 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7068 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7069 } else
7070 err = -EINVAL;
7071
7072out:
7073 return err;
7074}
7075
29cbe68c
JB		 7076static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7077{
7078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7079 struct net_device *dev = info->user_ptr[1];
7080 struct mesh_config cfg;
c80d545d 7081 struct mesh_setup setup;
29cbe68c
JB		 7082 int err;
7083
7084 /* start with default */
7085 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7086 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7087
24bdd9f4 7088 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7089 /* and parse parameters if given */
24bdd9f4 7090 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7091 if (err)
7092 return err;
7093 }
7094
7095 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7096 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7097 return -EINVAL;
7098
c80d545d
JC		 7099 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7100 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7101
4bb62344
CYY		 7102 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7103 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7104 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7105 return -EINVAL;
7106
9bdbf04d
MP		 7107 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7108 setup.beacon_interval =
7109 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7110 if (setup.beacon_interval < 10 ||
7111 setup.beacon_interval > 10000)
7112 return -EINVAL;
7113 }
7114
7115 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7116 setup.dtim_period =
7117 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7118 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7119 return -EINVAL;
7120 }
7121
c80d545d
JC		 7122 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7123 /* parse additional setup parameters if given */
7124 err = nl80211_parse_mesh_setup(info, &setup);
7125 if (err)
7126 return err;
7127 }
7128
cc1d2806 7129 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7130 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7131 if (err)
7132 return err;
cc1d2806
JB		 7133 } else {
7134 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7135 setup.chandef.chan = NULL;
cc1d2806
JB		 7136 }
7137
c80d545d 7138 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7139}
7140
7141static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7142{
7143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7144 struct net_device *dev = info->user_ptr[1];
7145
7146 return cfg80211_leave_mesh(rdev, dev);
7147}
7148
dfb89c56 7149#ifdef CONFIG_PM
bb92d199
AK		 7150static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7151 struct cfg80211_registered_device *rdev)
7152{
7153 struct nlattr *nl_pats, *nl_pat;
7154 int i, pat_len;
7155
7156 if (!rdev->wowlan->n_patterns)
7157 return 0;
7158
7159 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7160 if (!nl_pats)
7161 return -ENOBUFS;
7162
7163 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7164 nl_pat = nla_nest_start(msg, i + 1);
7165 if (!nl_pat)
7166 return -ENOBUFS;
7167 pat_len = rdev->wowlan->patterns[i].pattern_len;
7168 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7169 DIV_ROUND_UP(pat_len, 8),
7170 rdev->wowlan->patterns[i].mask) ||
7171 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7172 pat_len, rdev->wowlan->patterns[i].pattern) ||
7173 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7174 rdev->wowlan->patterns[i].pkt_offset))
7175 return -ENOBUFS;
7176 nla_nest_end(msg, nl_pat);
7177 }
7178 nla_nest_end(msg, nl_pats);
7179
7180 return 0;
7181}
7182
2a0e047e
JB		 7183static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7184 struct cfg80211_wowlan_tcp *tcp)
7185{
7186 struct nlattr *nl_tcp;
7187
7188 if (!tcp)
7189 return 0;
7190
7191 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7192 if (!nl_tcp)
7193 return -ENOBUFS;
7194
7195 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7196 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7197 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7198 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7199 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7200 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7201 tcp->payload_len, tcp->payload) ||
7202 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7203 tcp->data_interval) ||
7204 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7205 tcp->wake_len, tcp->wake_data) ||
7206 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7207 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7208 return -ENOBUFS;
7209
7210 if (tcp->payload_seq.len &&
7211 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7212 sizeof(tcp->payload_seq), &tcp->payload_seq))
7213 return -ENOBUFS;
7214
7215 if (tcp->payload_tok.len &&
7216 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7217 sizeof(tcp->payload_tok) + tcp->tokens_size,
7218 &tcp->payload_tok))
7219 return -ENOBUFS;
7220
7221 return 0;
7222}
7223
ff1b6e69
JB		 7224static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7225{
7226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7227 struct sk_buff *msg;
7228 void *hdr;
2a0e047e 7229 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7230
2a0e047e
JB		 7231 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7232 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7233 return -EOPNOTSUPP;
7234
2a0e047e
JB		 7235 if (rdev->wowlan && rdev->wowlan->tcp) {
7236 /* adjust size to have room for all the data */
7237 size += rdev->wowlan->tcp->tokens_size +
7238 rdev->wowlan->tcp->payload_len +
7239 rdev->wowlan->tcp->wake_len +
7240 rdev->wowlan->tcp->wake_len / 8;
7241 }
7242
7243 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7244 if (!msg)
7245 return -ENOMEM;
7246
15e47304 7247 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7248 NL80211_CMD_GET_WOWLAN);
7249 if (!hdr)
7250 goto nla_put_failure;
7251
7252 if (rdev->wowlan) {
7253 struct nlattr *nl_wowlan;
7254
7255 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7256 if (!nl_wowlan)
7257 goto nla_put_failure;
7258
9360ffd1
DM		 7259 if ((rdev->wowlan->any &&
7260 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7261 (rdev->wowlan->disconnect &&
7262 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7263 (rdev->wowlan->magic_pkt &&
7264 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7265 (rdev->wowlan->gtk_rekey_failure &&
7266 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7267 (rdev->wowlan->eap_identity_req &&
7268 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7269 (rdev->wowlan->four_way_handshake &&
7270 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7271 (rdev->wowlan->rfkill_release &&
7272 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7273 goto nla_put_failure;
2a0e047e 7274
bb92d199
AK		 7275 if (nl80211_send_wowlan_patterns(msg, rdev))
7276 goto nla_put_failure;
2a0e047e
JB		 7277
7278 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7279 goto nla_put_failure;
7280
ff1b6e69
JB		 7281 nla_nest_end(msg, nl_wowlan);
7282 }
7283
7284 genlmsg_end(msg, hdr);
7285 return genlmsg_reply(msg, info);
7286
7287nla_put_failure:
7288 nlmsg_free(msg);
7289 return -ENOBUFS;
7290}
7291
2a0e047e
JB		 7292static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7293 struct nlattr *attr,
7294 struct cfg80211_wowlan *trig)
7295{
7296 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7297 struct cfg80211_wowlan_tcp *cfg;
7298 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7299 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7300 u32 size;
7301 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7302 int err, port;
7303
7304 if (!rdev->wiphy.wowlan.tcp)
7305 return -EINVAL;
7306
7307 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7308 nla_data(attr), nla_len(attr),
7309 nl80211_wowlan_tcp_policy);
7310 if (err)
7311 return err;
7312
7313 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7314 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7315 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7316 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7317 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7318 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7319 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7320 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7321 return -EINVAL;
7322
7323 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7324 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7325 return -EINVAL;
7326
7327 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7328 rdev->wiphy.wowlan.tcp->data_interval_max)
7329 return -EINVAL;
7330
7331 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7332 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7333 return -EINVAL;
7334
7335 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7336 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7337 return -EINVAL;
7338
7339 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7340 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7341
7342 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7343 tokens_size = tokln - sizeof(*tok);
7344
7345 if (!tok->len || tokens_size % tok->len)
7346 return -EINVAL;
7347 if (!rdev->wiphy.wowlan.tcp->tok)
7348 return -EINVAL;
7349 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7350 return -EINVAL;
7351 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7352 return -EINVAL;
7353 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7354 return -EINVAL;
7355 if (tok->offset + tok->len > data_size)
7356 return -EINVAL;
7357 }
7358
7359 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7360 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7361 if (!rdev->wiphy.wowlan.tcp->seq)
7362 return -EINVAL;
7363 if (seq->len == 0 || seq->len > 4)
7364 return -EINVAL;
7365 if (seq->len + seq->offset > data_size)
7366 return -EINVAL;
7367 }
7368
7369 size = sizeof(*cfg);
7370 size += data_size;
7371 size += wake_size + wake_mask_size;
7372 size += tokens_size;
7373
7374 cfg = kzalloc(size, GFP_KERNEL);
7375 if (!cfg)
7376 return -ENOMEM;
7377 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7378 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7379 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7380 ETH_ALEN);
7381 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7382 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7383 else
7384 port = 0;
7385#ifdef CONFIG_INET
7386 /* allocate a socket and port for it and use it */
7387 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7388 IPPROTO_TCP, &cfg->sock, 1);
7389 if (err) {
7390 kfree(cfg);
7391 return err;
7392 }
7393 if (inet_csk_get_port(cfg->sock->sk, port)) {
7394 sock_release(cfg->sock);
7395 kfree(cfg);
7396 return -EADDRINUSE;
7397 }
7398 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7399#else
7400 if (!port) {
7401 kfree(cfg);
7402 return -EINVAL;
7403 }
7404 cfg->src_port = port;
7405#endif
7406
7407 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7408 cfg->payload_len = data_size;
7409 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7410 memcpy((void *)cfg->payload,
7411 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7412 data_size);
7413 if (seq)
7414 cfg->payload_seq = *seq;
7415 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7416 cfg->wake_len = wake_size;
7417 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7418 memcpy((void *)cfg->wake_data,
7419 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7420 wake_size);
7421 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7422 data_size + wake_size;
7423 memcpy((void *)cfg->wake_mask,
7424 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7425 wake_mask_size);
7426 if (tok) {
7427 cfg->tokens_size = tokens_size;
7428 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7429 }
7430
7431 trig->tcp = cfg;
7432
7433 return 0;
7434}
7435
ff1b6e69
JB		 7436static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7437{
7438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7439 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7440 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7441 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7442 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7443 int err, i;
6d52563f 7444 bool prev_enabled = rdev->wowlan;
ff1b6e69 7445
2a0e047e
JB		 7446 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7447 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7448 return -EOPNOTSUPP;
7449
ae33bd81
JB		 7450 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7451 cfg80211_rdev_free_wowlan(rdev);
7452 rdev->wowlan = NULL;
7453 goto set_wakeup;
7454 }
ff1b6e69
JB		 7455
7456 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7457 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7458 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7459 nl80211_wowlan_policy);
7460 if (err)
7461 return err;
7462
7463 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7464 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7465 return -EINVAL;
7466 new_triggers.any = true;
7467 }
7468
7469 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7470 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7471 return -EINVAL;
7472 new_triggers.disconnect = true;
7473 }
7474
7475 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7476 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7477 return -EINVAL;
7478 new_triggers.magic_pkt = true;
7479 }
7480
77dbbb13
JB		 7481 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7482 return -EINVAL;
7483
7484 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7485 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7486 return -EINVAL;
7487 new_triggers.gtk_rekey_failure = true;
7488 }
7489
7490 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7491 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7492 return -EINVAL;
7493 new_triggers.eap_identity_req = true;
7494 }
7495
7496 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7497 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7498 return -EINVAL;
7499 new_triggers.four_way_handshake = true;
7500 }
7501
7502 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7503 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7504 return -EINVAL;
7505 new_triggers.rfkill_release = true;
7506 }
7507
ff1b6e69
JB		 7508 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7509 struct nlattr *pat;
7510 int n_patterns = 0;
bb92d199 7511 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7512 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7513
7514 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7515 rem)
7516 n_patterns++;
7517 if (n_patterns > wowlan->n_patterns)
7518 return -EINVAL;
7519
7520 new_triggers.patterns = kcalloc(n_patterns,
7521 sizeof(new_triggers.patterns[0]),
7522 GFP_KERNEL);
7523 if (!new_triggers.patterns)
7524 return -ENOMEM;
7525
7526 new_triggers.n_patterns = n_patterns;
7527 i = 0;
7528
7529 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7530 rem) {
7531 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7532 nla_data(pat), nla_len(pat), NULL);
7533 err = -EINVAL;
7534 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7535 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7536 goto error;
7537 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7538 mask_len = DIV_ROUND_UP(pat_len, 8);
7539 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7540 mask_len)
7541 goto error;
7542 if (pat_len > wowlan->pattern_max_len ||
7543 pat_len < wowlan->pattern_min_len)
7544 goto error;
7545
bb92d199
AK		 7546 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7547 pkt_offset = 0;
7548 else
7549 pkt_offset = nla_get_u32(
7550 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7551 if (pkt_offset > wowlan->max_pkt_offset)
7552 goto error;
7553 new_triggers.patterns[i].pkt_offset = pkt_offset;
7554
ff1b6e69
JB		 7555 new_triggers.patterns[i].mask =
7556 kmalloc(mask_len + pat_len, GFP_KERNEL);
7557 if (!new_triggers.patterns[i].mask) {
7558 err = -ENOMEM;
7559 goto error;
7560 }
7561 new_triggers.patterns[i].pattern =
7562 new_triggers.patterns[i].mask + mask_len;
7563 memcpy(new_triggers.patterns[i].mask,
7564 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7565 mask_len);
7566 new_triggers.patterns[i].pattern_len = pat_len;
7567 memcpy(new_triggers.patterns[i].pattern,
7568 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7569 pat_len);
7570 i++;
7571 }
7572 }
7573
2a0e047e
JB		 7574 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7575 err = nl80211_parse_wowlan_tcp(
7576 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7577 &new_triggers);
7578 if (err)
7579 goto error;
7580 }
7581
ae33bd81
JB		 7582 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7583 if (!ntrig) {
7584 err = -ENOMEM;
7585 goto error;
ff1b6e69 7586 }
ae33bd81
JB		 7587 cfg80211_rdev_free_wowlan(rdev);
7588 rdev->wowlan = ntrig;
ff1b6e69 7589
ae33bd81 7590 set_wakeup:
6d52563f 7591 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7592 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7593
ff1b6e69
JB		 7594 return 0;
7595 error:
7596 for (i = 0; i < new_triggers.n_patterns; i++)
7597 kfree(new_triggers.patterns[i].mask);
7598 kfree(new_triggers.patterns);
2a0e047e
JB		 7599 if (new_triggers.tcp && new_triggers.tcp->sock)
7600 sock_release(new_triggers.tcp->sock);
7601 kfree(new_triggers.tcp);
ff1b6e69
JB		 7602 return err;
7603}
dfb89c56 7604#endif
ff1b6e69 7605
e5497d76
JB		 7606static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7607{
7608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7609 struct net_device *dev = info->user_ptr[1];
7610 struct wireless_dev *wdev = dev->ieee80211_ptr;
7611 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7612 struct cfg80211_gtk_rekey_data rekey_data;
7613 int err;
7614
7615 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7616 return -EINVAL;
7617
7618 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7619 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7620 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7621 nl80211_rekey_policy);
7622 if (err)
7623 return err;
7624
7625 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7626 return -ERANGE;
7627 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7628 return -ERANGE;
7629 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7630 return -ERANGE;
7631
7632 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7633 NL80211_KEK_LEN);
7634 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7635 NL80211_KCK_LEN);
7636 memcpy(rekey_data.replay_ctr,
7637 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7638 NL80211_REPLAY_CTR_LEN);
7639
7640 wdev_lock(wdev);
7641 if (!wdev->current_bss) {
7642 err = -ENOTCONN;
7643 goto out;
7644 }
7645
7646 if (!rdev->ops->set_rekey_data) {
7647 err = -EOPNOTSUPP;
7648 goto out;
7649 }
7650
e35e4d28 7651 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7652 out:
7653 wdev_unlock(wdev);
7654 return err;
7655}
7656
28946da7
JB		 7657static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7658 struct genl_info *info)
7659{
7660 struct net_device *dev = info->user_ptr[1];
7661 struct wireless_dev *wdev = dev->ieee80211_ptr;
7662
7663 if (wdev->iftype != NL80211_IFTYPE_AP &&
7664 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7665 return -EINVAL;
7666
15e47304 7667 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7668 return -EBUSY;
7669
15e47304 7670 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7671 return 0;
7672}
7673
7f6cf311
JB		 7674static int nl80211_probe_client(struct sk_buff *skb,
7675 struct genl_info *info)
7676{
7677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7678 struct net_device *dev = info->user_ptr[1];
7679 struct wireless_dev *wdev = dev->ieee80211_ptr;
7680 struct sk_buff *msg;
7681 void *hdr;
7682 const u8 *addr;
7683 u64 cookie;
7684 int err;
7685
7686 if (wdev->iftype != NL80211_IFTYPE_AP &&
7687 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7688 return -EOPNOTSUPP;
7689
7690 if (!info->attrs[NL80211_ATTR_MAC])
7691 return -EINVAL;
7692
7693 if (!rdev->ops->probe_client)
7694 return -EOPNOTSUPP;
7695
7696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7697 if (!msg)
7698 return -ENOMEM;
7699
15e47304 7700 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 7701 NL80211_CMD_PROBE_CLIENT);
7702
7703 if (IS_ERR(hdr)) {
7704 err = PTR_ERR(hdr);
7705 goto free_msg;
7706 }
7707
7708 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7709
e35e4d28 7710 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7711 if (err)
7712 goto free_msg;
7713
9360ffd1
DM		 7714 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7715 goto nla_put_failure;
7f6cf311
JB		 7716
7717 genlmsg_end(msg, hdr);
7718
7719 return genlmsg_reply(msg, info);
7720
7721 nla_put_failure:
7722 err = -ENOBUFS;
7723 free_msg:
7724 nlmsg_free(msg);
7725 return err;
7726}
7727
5e760230
JB		 7728static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7729{
7730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7731 struct cfg80211_beacon_registration *reg, *nreg;
7732 int rv;
5e760230
JB		 7733
7734 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7735 return -EOPNOTSUPP;
7736
37c73b5f
BG		 7737 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7738 if (!nreg)
7739 return -ENOMEM;
7740
7741 /* First, check if already registered. */
7742 spin_lock_bh(&rdev->beacon_registrations_lock);
7743 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7744 if (reg->nlportid == info->snd_portid) {
7745 rv = -EALREADY;
7746 goto out_err;
7747 }
7748 }
7749 /* Add it to the list */
7750 nreg->nlportid = info->snd_portid;
7751 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7752
37c73b5f 7753 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7754
7755 return 0;
37c73b5f
BG		 7756out_err:
7757 spin_unlock_bh(&rdev->beacon_registrations_lock);
7758 kfree(nreg);
7759 return rv;
5e760230
JB		 7760}
7761
98104fde
JB		 7762static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7763{
7764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7765 struct wireless_dev *wdev = info->user_ptr[1];
7766 int err;
7767
7768 if (!rdev->ops->start_p2p_device)
7769 return -EOPNOTSUPP;
7770
7771 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7772 return -EOPNOTSUPP;
7773
7774 if (wdev->p2p_started)
7775 return 0;
7776
7777 mutex_lock(&rdev->devlist_mtx);
7778 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7779 mutex_unlock(&rdev->devlist_mtx);
7780 if (err)
7781 return err;
7782
eeb126e9 7783 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7784 if (err)
7785 return err;
7786
7787 wdev->p2p_started = true;
7788 mutex_lock(&rdev->devlist_mtx);
7789 rdev->opencount++;
7790 mutex_unlock(&rdev->devlist_mtx);
7791
7792 return 0;
7793}
7794
7795static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7796{
7797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7798 struct wireless_dev *wdev = info->user_ptr[1];
7799
7800 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7801 return -EOPNOTSUPP;
7802
7803 if (!rdev->ops->stop_p2p_device)
7804 return -EOPNOTSUPP;
7805
7806 if (!wdev->p2p_started)
7807 return 0;
7808
eeb126e9 7809 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7810 wdev->p2p_started = false;
7811
7812 mutex_lock(&rdev->devlist_mtx);
7813 rdev->opencount--;
7814 mutex_unlock(&rdev->devlist_mtx);
7815
7816 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7817 rdev->scan_req->aborted = true;
7818 ___cfg80211_scan_done(rdev, true);
7819 }
7820
7821 return 0;
7822}
7823
4c476991
JB		 7824#define NL80211_FLAG_NEED_WIPHY 0x01
7825#define NL80211_FLAG_NEED_NETDEV 0x02
7826#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7827#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7828#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7829 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7830#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7831/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7832#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7833 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7834
7835static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7836 struct genl_info *info)
7837{
7838 struct cfg80211_registered_device *rdev;
89a54e48 7839 struct wireless_dev *wdev;
4c476991 7840 struct net_device *dev;
4c476991
JB		 7841 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7842
7843 if (rtnl)
7844 rtnl_lock();
7845
7846 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7847 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7848 if (IS_ERR(rdev)) {
7849 if (rtnl)
7850 rtnl_unlock();
7851 return PTR_ERR(rdev);
7852 }
7853 info->user_ptr[0] = rdev;
1bf614ef
JB		 7854 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7855 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7856 mutex_lock(&cfg80211_mutex);
7857 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7858 info->attrs);
7859 if (IS_ERR(wdev)) {
7860 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7861 if (rtnl)
7862 rtnl_unlock();
89a54e48 7863 return PTR_ERR(wdev);
4c476991 7864 }
89a54e48 7865
89a54e48
JB		 7866 dev = wdev->netdev;
7867 rdev = wiphy_to_dev(wdev->wiphy);
7868
1bf614ef
JB		 7869 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7870 if (!dev) {
7871 mutex_unlock(&cfg80211_mutex);
7872 if (rtnl)
7873 rtnl_unlock();
7874 return -EINVAL;
7875 }
7876
7877 info->user_ptr[1] = dev;
7878 } else {
7879 info->user_ptr[1] = wdev;
41265714 7880 }
1bf614ef
JB		 7881
7882 if (dev) {
7883 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7884 !netif_running(dev)) {
7885 mutex_unlock(&cfg80211_mutex);
7886 if (rtnl)
7887 rtnl_unlock();
7888 return -ENETDOWN;
7889 }
7890
7891 dev_hold(dev);
98104fde
JB		 7892 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7893 if (!wdev->p2p_started) {
7894 mutex_unlock(&cfg80211_mutex);
7895 if (rtnl)
7896 rtnl_unlock();
7897 return -ENETDOWN;
7898 }
41265714 7899 }
89a54e48 7900
89a54e48
JB		 7901 cfg80211_lock_rdev(rdev);
7902
7903 mutex_unlock(&cfg80211_mutex);
7904
4c476991 7905 info->user_ptr[0] = rdev;
4c476991
JB		 7906 }
7907
7908 return 0;
7909}
7910
7911static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7912 struct genl_info *info)
7913{
7914 if (info->user_ptr[0])
7915 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7916 if (info->user_ptr[1]) {
7917 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7918 struct wireless_dev *wdev = info->user_ptr[1];
7919
7920 if (wdev->netdev)
7921 dev_put(wdev->netdev);
7922 } else {
7923 dev_put(info->user_ptr[1]);
7924 }
7925 }
4c476991
JB		 7926 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7927 rtnl_unlock();
7928}
7929
55682965
JB		 7930static struct genl_ops nl80211_ops[] = {
7931 {
7932 .cmd = NL80211_CMD_GET_WIPHY,
7933 .doit = nl80211_get_wiphy,
7934 .dumpit = nl80211_dump_wiphy,
7935 .policy = nl80211_policy,
7936 /* can be retrieved by unprivileged users */
4c476991 7937 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7938 },
7939 {
7940 .cmd = NL80211_CMD_SET_WIPHY,
7941 .doit = nl80211_set_wiphy,
7942 .policy = nl80211_policy,
7943 .flags = GENL_ADMIN_PERM,
4c476991 7944 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7945 },
7946 {
7947 .cmd = NL80211_CMD_GET_INTERFACE,
7948 .doit = nl80211_get_interface,
7949 .dumpit = nl80211_dump_interface,
7950 .policy = nl80211_policy,
7951 /* can be retrieved by unprivileged users */
72fb2abc 7952 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7953 },
7954 {
7955 .cmd = NL80211_CMD_SET_INTERFACE,
7956 .doit = nl80211_set_interface,
7957 .policy = nl80211_policy,
7958 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7959 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7960 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7961 },
7962 {
7963 .cmd = NL80211_CMD_NEW_INTERFACE,
7964 .doit = nl80211_new_interface,
7965 .policy = nl80211_policy,
7966 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7967 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7968 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7969 },
7970 {
7971 .cmd = NL80211_CMD_DEL_INTERFACE,
7972 .doit = nl80211_del_interface,
7973 .policy = nl80211_policy,
41ade00f 7974 .flags = GENL_ADMIN_PERM,
84efbb84 7975 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7976 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7977 },
7978 {
7979 .cmd = NL80211_CMD_GET_KEY,
7980 .doit = nl80211_get_key,
7981 .policy = nl80211_policy,
7982 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7984 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7985 },
7986 {
7987 .cmd = NL80211_CMD_SET_KEY,
7988 .doit = nl80211_set_key,
7989 .policy = nl80211_policy,
7990 .flags = GENL_ADMIN_PERM,
41265714 7991 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7992 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7993 },
7994 {
7995 .cmd = NL80211_CMD_NEW_KEY,
7996 .doit = nl80211_new_key,
7997 .policy = nl80211_policy,
7998 .flags = GENL_ADMIN_PERM,
41265714 7999 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8000 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8001 },
8002 {
8003 .cmd = NL80211_CMD_DEL_KEY,
8004 .doit = nl80211_del_key,
8005 .policy = nl80211_policy,
55682965 8006 .flags = GENL_ADMIN_PERM,
41265714 8007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8008 NL80211_FLAG_NEED_RTNL,
55682965 8009 },
ed1b6cc7
JB		 8010 {
8011 .cmd = NL80211_CMD_SET_BEACON,
8012 .policy = nl80211_policy,
8013 .flags = GENL_ADMIN_PERM,
8860020e 8014 .doit = nl80211_set_beacon,
2b5f8b0b 8015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8016 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8017 },
8018 {
8860020e 8019 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8020 .policy = nl80211_policy,
8021 .flags = GENL_ADMIN_PERM,
8860020e 8022 .doit = nl80211_start_ap,
2b5f8b0b 8023 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8024 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8025 },
8026 {
8860020e 8027 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8028 .policy = nl80211_policy,
8029 .flags = GENL_ADMIN_PERM,
8860020e 8030 .doit = nl80211_stop_ap,
2b5f8b0b 8031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8032 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8033 },
5727ef1b
JB		 8034 {
8035 .cmd = NL80211_CMD_GET_STATION,
8036 .doit = nl80211_get_station,
2ec600d6 8037 .dumpit = nl80211_dump_station,
5727ef1b 8038 .policy = nl80211_policy,
4c476991
JB		 8039 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8040 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8041 },
8042 {
8043 .cmd = NL80211_CMD_SET_STATION,
8044 .doit = nl80211_set_station,
8045 .policy = nl80211_policy,
8046 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8048 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8049 },
8050 {
8051 .cmd = NL80211_CMD_NEW_STATION,
8052 .doit = nl80211_new_station,
8053 .policy = nl80211_policy,
8054 .flags = GENL_ADMIN_PERM,
41265714 8055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8056 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8057 },
8058 {
8059 .cmd = NL80211_CMD_DEL_STATION,
8060 .doit = nl80211_del_station,
8061 .policy = nl80211_policy,
2ec600d6 8062 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8064 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8065 },
8066 {
8067 .cmd = NL80211_CMD_GET_MPATH,
8068 .doit = nl80211_get_mpath,
8069 .dumpit = nl80211_dump_mpath,
8070 .policy = nl80211_policy,
8071 .flags = GENL_ADMIN_PERM,
41265714 8072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8073 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8074 },
8075 {
8076 .cmd = NL80211_CMD_SET_MPATH,
8077 .doit = nl80211_set_mpath,
8078 .policy = nl80211_policy,
8079 .flags = GENL_ADMIN_PERM,
41265714 8080 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8081 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8082 },
8083 {
8084 .cmd = NL80211_CMD_NEW_MPATH,
8085 .doit = nl80211_new_mpath,
8086 .policy = nl80211_policy,
8087 .flags = GENL_ADMIN_PERM,
41265714 8088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8089 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8090 },
8091 {
8092 .cmd = NL80211_CMD_DEL_MPATH,
8093 .doit = nl80211_del_mpath,
8094 .policy = nl80211_policy,
9f1ba906 8095 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8097 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8098 },
8099 {
8100 .cmd = NL80211_CMD_SET_BSS,
8101 .doit = nl80211_set_bss,
8102 .policy = nl80211_policy,
b2e1b302 8103 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8104 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8105 NL80211_FLAG_NEED_RTNL,
b2e1b302 8106 },
f130347c
LR		 8107 {
8108 .cmd = NL80211_CMD_GET_REG,
8109 .doit = nl80211_get_reg,
8110 .policy = nl80211_policy,
8111 /* can be retrieved by unprivileged users */
8112 },
b2e1b302
LR		 8113 {
8114 .cmd = NL80211_CMD_SET_REG,
8115 .doit = nl80211_set_reg,
8116 .policy = nl80211_policy,
8117 .flags = GENL_ADMIN_PERM,
8118 },
8119 {
8120 .cmd = NL80211_CMD_REQ_SET_REG,
8121 .doit = nl80211_req_set_reg,
8122 .policy = nl80211_policy,
93da9cc1 8123 .flags = GENL_ADMIN_PERM,
8124 },
8125 {
24bdd9f4
JC		 8126 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8127 .doit = nl80211_get_mesh_config,
93da9cc1 8128 .policy = nl80211_policy,
8129 /* can be retrieved by unprivileged users */
2b5f8b0b 8130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8131 NL80211_FLAG_NEED_RTNL,
93da9cc1 8132 },
8133 {
24bdd9f4
JC		 8134 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8135 .doit = nl80211_update_mesh_config,
93da9cc1 8136 .policy = nl80211_policy,
9aed3cc1 8137 .flags = GENL_ADMIN_PERM,
29cbe68c 8138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8139 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8140 },
2a519311
JB		 8141 {
8142 .cmd = NL80211_CMD_TRIGGER_SCAN,
8143 .doit = nl80211_trigger_scan,
8144 .policy = nl80211_policy,
8145 .flags = GENL_ADMIN_PERM,
fd014284 8146 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8147 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8148 },
8149 {
8150 .cmd = NL80211_CMD_GET_SCAN,
8151 .policy = nl80211_policy,
8152 .dumpit = nl80211_dump_scan,
8153 },
807f8a8c
LC		 8154 {
8155 .cmd = NL80211_CMD_START_SCHED_SCAN,
8156 .doit = nl80211_start_sched_scan,
8157 .policy = nl80211_policy,
8158 .flags = GENL_ADMIN_PERM,
8159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8160 NL80211_FLAG_NEED_RTNL,
8161 },
8162 {
8163 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8164 .doit = nl80211_stop_sched_scan,
8165 .policy = nl80211_policy,
8166 .flags = GENL_ADMIN_PERM,
8167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8168 NL80211_FLAG_NEED_RTNL,
8169 },
636a5d36
JM		 8170 {
8171 .cmd = NL80211_CMD_AUTHENTICATE,
8172 .doit = nl80211_authenticate,
8173 .policy = nl80211_policy,
8174 .flags = GENL_ADMIN_PERM,
41265714 8175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8176 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8177 },
8178 {
8179 .cmd = NL80211_CMD_ASSOCIATE,
8180 .doit = nl80211_associate,
8181 .policy = nl80211_policy,
8182 .flags = GENL_ADMIN_PERM,
41265714 8183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8184 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8185 },
8186 {
8187 .cmd = NL80211_CMD_DEAUTHENTICATE,
8188 .doit = nl80211_deauthenticate,
8189 .policy = nl80211_policy,
8190 .flags = GENL_ADMIN_PERM,
41265714 8191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8192 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8193 },
8194 {
8195 .cmd = NL80211_CMD_DISASSOCIATE,
8196 .doit = nl80211_disassociate,
8197 .policy = nl80211_policy,
8198 .flags = GENL_ADMIN_PERM,
41265714 8199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8200 NL80211_FLAG_NEED_RTNL,
636a5d36 8201 },
04a773ad
JB		 8202 {
8203 .cmd = NL80211_CMD_JOIN_IBSS,
8204 .doit = nl80211_join_ibss,
8205 .policy = nl80211_policy,
8206 .flags = GENL_ADMIN_PERM,
41265714 8207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8208 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8209 },
8210 {
8211 .cmd = NL80211_CMD_LEAVE_IBSS,
8212 .doit = nl80211_leave_ibss,
8213 .policy = nl80211_policy,
8214 .flags = GENL_ADMIN_PERM,
41265714 8215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8216 NL80211_FLAG_NEED_RTNL,
04a773ad 8217 },
aff89a9b
JB		 8218#ifdef CONFIG_NL80211_TESTMODE
8219 {
8220 .cmd = NL80211_CMD_TESTMODE,
8221 .doit = nl80211_testmode_do,
71063f0e 8222 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8223 .policy = nl80211_policy,
8224 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8225 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8226 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8227 },
8228#endif
b23aa676
SO		 8229 {
8230 .cmd = NL80211_CMD_CONNECT,
8231 .doit = nl80211_connect,
8232 .policy = nl80211_policy,
8233 .flags = GENL_ADMIN_PERM,
41265714 8234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8235 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8236 },
8237 {
8238 .cmd = NL80211_CMD_DISCONNECT,
8239 .doit = nl80211_disconnect,
8240 .policy = nl80211_policy,
8241 .flags = GENL_ADMIN_PERM,
41265714 8242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8243 NL80211_FLAG_NEED_RTNL,
b23aa676 8244 },
463d0183
JB		 8245 {
8246 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8247 .doit = nl80211_wiphy_netns,
8248 .policy = nl80211_policy,
8249 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8250 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8251 NL80211_FLAG_NEED_RTNL,
463d0183 8252 },
61fa713c
HS		 8253 {
8254 .cmd = NL80211_CMD_GET_SURVEY,
8255 .policy = nl80211_policy,
8256 .dumpit = nl80211_dump_survey,
8257 },
67fbb16b
SO		 8258 {
8259 .cmd = NL80211_CMD_SET_PMKSA,
8260 .doit = nl80211_setdel_pmksa,
8261 .policy = nl80211_policy,
8262 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8264 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8265 },
8266 {
8267 .cmd = NL80211_CMD_DEL_PMKSA,
8268 .doit = nl80211_setdel_pmksa,
8269 .policy = nl80211_policy,
8270 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8272 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8273 },
8274 {
8275 .cmd = NL80211_CMD_FLUSH_PMKSA,
8276 .doit = nl80211_flush_pmksa,
8277 .policy = nl80211_policy,
8278 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8280 NL80211_FLAG_NEED_RTNL,
67fbb16b 8281 },
9588bbd5
JM		 8282 {
8283 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8284 .doit = nl80211_remain_on_channel,
8285 .policy = nl80211_policy,
8286 .flags = GENL_ADMIN_PERM,
71bbc994 8287 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8288 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8289 },
8290 {
8291 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8292 .doit = nl80211_cancel_remain_on_channel,
8293 .policy = nl80211_policy,
8294 .flags = GENL_ADMIN_PERM,
71bbc994 8295 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8296 NL80211_FLAG_NEED_RTNL,
9588bbd5 8297 },
13ae75b1
JM		 8298 {
8299 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8300 .doit = nl80211_set_tx_bitrate_mask,
8301 .policy = nl80211_policy,
8302 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8303 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8304 NL80211_FLAG_NEED_RTNL,
13ae75b1 8305 },
026331c4 8306 {
2e161f78
JB		 8307 .cmd = NL80211_CMD_REGISTER_FRAME,
8308 .doit = nl80211_register_mgmt,
026331c4
JM		 8309 .policy = nl80211_policy,
8310 .flags = GENL_ADMIN_PERM,
71bbc994 8311 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8312 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8313 },
8314 {
2e161f78
JB		 8315 .cmd = NL80211_CMD_FRAME,
8316 .doit = nl80211_tx_mgmt,
026331c4 8317 .policy = nl80211_policy,
f7ca38df 8318 .flags = GENL_ADMIN_PERM,
71bbc994 8319 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8320 NL80211_FLAG_NEED_RTNL,
8321 },
8322 {
8323 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8324 .doit = nl80211_tx_mgmt_cancel_wait,
8325 .policy = nl80211_policy,
026331c4 8326 .flags = GENL_ADMIN_PERM,
71bbc994 8327 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8328 NL80211_FLAG_NEED_RTNL,
026331c4 8329 },
ffb9eb3d
KV		 8330 {
8331 .cmd = NL80211_CMD_SET_POWER_SAVE,
8332 .doit = nl80211_set_power_save,
8333 .policy = nl80211_policy,
8334 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8335 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8336 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8337 },
8338 {
8339 .cmd = NL80211_CMD_GET_POWER_SAVE,
8340 .doit = nl80211_get_power_save,
8341 .policy = nl80211_policy,
8342 /* can be retrieved by unprivileged users */
4c476991
JB		 8343 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8344 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8345 },
d6dc1a38
JO		 8346 {
8347 .cmd = NL80211_CMD_SET_CQM,
8348 .doit = nl80211_set_cqm,
8349 .policy = nl80211_policy,
8350 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8351 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8352 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8353 },
f444de05
JB		 8354 {
8355 .cmd = NL80211_CMD_SET_CHANNEL,
8356 .doit = nl80211_set_channel,
8357 .policy = nl80211_policy,
8358 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8359 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8360 NL80211_FLAG_NEED_RTNL,
f444de05 8361 },
e8347eba
BJ		 8362 {
8363 .cmd = NL80211_CMD_SET_WDS_PEER,
8364 .doit = nl80211_set_wds_peer,
8365 .policy = nl80211_policy,
8366 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8367 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8368 NL80211_FLAG_NEED_RTNL,
e8347eba 8369 },
29cbe68c
JB		 8370 {
8371 .cmd = NL80211_CMD_JOIN_MESH,
8372 .doit = nl80211_join_mesh,
8373 .policy = nl80211_policy,
8374 .flags = GENL_ADMIN_PERM,
8375 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8376 NL80211_FLAG_NEED_RTNL,
8377 },
8378 {
8379 .cmd = NL80211_CMD_LEAVE_MESH,
8380 .doit = nl80211_leave_mesh,
8381 .policy = nl80211_policy,
8382 .flags = GENL_ADMIN_PERM,
8383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8384 NL80211_FLAG_NEED_RTNL,
8385 },
dfb89c56 8386#ifdef CONFIG_PM
ff1b6e69
JB		 8387 {
8388 .cmd = NL80211_CMD_GET_WOWLAN,
8389 .doit = nl80211_get_wowlan,
8390 .policy = nl80211_policy,
8391 /* can be retrieved by unprivileged users */
8392 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8393 NL80211_FLAG_NEED_RTNL,
8394 },
8395 {
8396 .cmd = NL80211_CMD_SET_WOWLAN,
8397 .doit = nl80211_set_wowlan,
8398 .policy = nl80211_policy,
8399 .flags = GENL_ADMIN_PERM,
8400 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8401 NL80211_FLAG_NEED_RTNL,
8402 },
dfb89c56 8403#endif
e5497d76
JB		 8404 {
8405 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8406 .doit = nl80211_set_rekey_data,
8407 .policy = nl80211_policy,
8408 .flags = GENL_ADMIN_PERM,
8409 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8410 NL80211_FLAG_NEED_RTNL,
8411 },
109086ce
AN		 8412 {
8413 .cmd = NL80211_CMD_TDLS_MGMT,
8414 .doit = nl80211_tdls_mgmt,
8415 .policy = nl80211_policy,
8416 .flags = GENL_ADMIN_PERM,
8417 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8418 NL80211_FLAG_NEED_RTNL,
8419 },
8420 {
8421 .cmd = NL80211_CMD_TDLS_OPER,
8422 .doit = nl80211_tdls_oper,
8423 .policy = nl80211_policy,
8424 .flags = GENL_ADMIN_PERM,
8425 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8426 NL80211_FLAG_NEED_RTNL,
8427 },
28946da7
JB		 8428 {
8429 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8430 .doit = nl80211_register_unexpected_frame,
8431 .policy = nl80211_policy,
8432 .flags = GENL_ADMIN_PERM,
8433 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8434 NL80211_FLAG_NEED_RTNL,
8435 },
7f6cf311
JB		 8436 {
8437 .cmd = NL80211_CMD_PROBE_CLIENT,
8438 .doit = nl80211_probe_client,
8439 .policy = nl80211_policy,
8440 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8442 NL80211_FLAG_NEED_RTNL,
8443 },
5e760230
JB		 8444 {
8445 .cmd = NL80211_CMD_REGISTER_BEACONS,
8446 .doit = nl80211_register_beacons,
8447 .policy = nl80211_policy,
8448 .flags = GENL_ADMIN_PERM,
8449 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8450 NL80211_FLAG_NEED_RTNL,
8451 },
1d9d9213
SW		 8452 {
8453 .cmd = NL80211_CMD_SET_NOACK_MAP,
8454 .doit = nl80211_set_noack_map,
8455 .policy = nl80211_policy,
8456 .flags = GENL_ADMIN_PERM,
8457 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8458 NL80211_FLAG_NEED_RTNL,
8459 },
98104fde
JB		 8460 {
8461 .cmd = NL80211_CMD_START_P2P_DEVICE,
8462 .doit = nl80211_start_p2p_device,
8463 .policy = nl80211_policy,
8464 .flags = GENL_ADMIN_PERM,
8465 .internal_flags = NL80211_FLAG_NEED_WDEV |
8466 NL80211_FLAG_NEED_RTNL,
8467 },
8468 {
8469 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8470 .doit = nl80211_stop_p2p_device,
8471 .policy = nl80211_policy,
8472 .flags = GENL_ADMIN_PERM,
8473 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8474 NL80211_FLAG_NEED_RTNL,
8475 },
f4e583c8
AQ		 8476 {
8477 .cmd = NL80211_CMD_SET_MCAST_RATE,
8478 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8479 .policy = nl80211_policy,
8480 .flags = GENL_ADMIN_PERM,
8481 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8482 NL80211_FLAG_NEED_RTNL,
8483 },
8484 {
8485 .cmd = NL80211_CMD_SET_MAC_ACL,
8486 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8487 .policy = nl80211_policy,
8488 .flags = GENL_ADMIN_PERM,
8489 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8490 NL80211_FLAG_NEED_RTNL,
8491 },
04f39047
SW		 8492 {
8493 .cmd = NL80211_CMD_RADAR_DETECT,
8494 .doit = nl80211_start_radar_detection,
8495 .policy = nl80211_policy,
8496 .flags = GENL_ADMIN_PERM,
8497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8498 NL80211_FLAG_NEED_RTNL,
8499 },
55682965 8500};
9588bbd5 8501
6039f6d2
JM		 8502static struct genl_multicast_group nl80211_mlme_mcgrp = {
8503 .name = "mlme",
8504};
55682965
JB		 8505
8506/* multicast groups */
8507static struct genl_multicast_group nl80211_config_mcgrp = {
8508 .name = "config",
8509};
2a519311
JB		 8510static struct genl_multicast_group nl80211_scan_mcgrp = {
8511 .name = "scan",
8512};
73d54c9e
LR		 8513static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8514 .name = "regulatory",
8515};
55682965
JB		 8516
8517/* notification functions */
8518
8519void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8520{
8521 struct sk_buff *msg;
8522
fd2120ca 8523 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8524 if (!msg)
8525 return;
8526
8527 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8528 nlmsg_free(msg);
8529 return;
8530 }
8531
463d0183
JB		 8532 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8533 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8534}
8535
362a415d
JB		 8536static int nl80211_add_scan_req(struct sk_buff *msg,
8537 struct cfg80211_registered_device *rdev)
8538{
8539 struct cfg80211_scan_request *req = rdev->scan_req;
8540 struct nlattr *nest;
8541 int i;
8542
667503dd
JB		 8543 ASSERT_RDEV_LOCK(rdev);
8544
362a415d
JB		 8545 if (WARN_ON(!req))
8546 return 0;
8547
8548 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8549 if (!nest)
8550 goto nla_put_failure;
9360ffd1
DM		 8551 for (i = 0; i < req->n_ssids; i++) {
8552 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8553 goto nla_put_failure;
8554 }
362a415d
JB		 8555 nla_nest_end(msg, nest);
8556
8557 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8558 if (!nest)
8559 goto nla_put_failure;
9360ffd1
DM		 8560 for (i = 0; i < req->n_channels; i++) {
8561 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8562 goto nla_put_failure;
8563 }
362a415d
JB		 8564 nla_nest_end(msg, nest);
8565
9360ffd1
DM		 8566 if (req->ie &&
8567 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8568 goto nla_put_failure;
362a415d 8569
ed473771
SL		 8570 if (req->flags)
8571 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8572
362a415d
JB		 8573 return 0;
8574 nla_put_failure:
8575 return -ENOBUFS;
8576}
8577
a538e2d5
JB		 8578static int nl80211_send_scan_msg(struct sk_buff *msg,
8579 struct cfg80211_registered_device *rdev,
fd014284 8580 struct wireless_dev *wdev,
15e47304 8581 u32 portid, u32 seq, int flags,
a538e2d5 8582 u32 cmd)
2a519311
JB		 8583{
8584 void *hdr;
8585
15e47304 8586 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 8587 if (!hdr)
8588 return -1;
8589
9360ffd1 8590 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 8591 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8592 wdev->netdev->ifindex)) ||
8593 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 8594 goto nla_put_failure;
2a519311 8595
362a415d
JB		 8596 /* ignore errors and send incomplete event anyway */
8597 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 8598
8599 return genlmsg_end(msg, hdr);
8600
8601 nla_put_failure:
8602 genlmsg_cancel(msg, hdr);
8603 return -EMSGSIZE;
8604}
8605
807f8a8c
LC		 8606static int
8607nl80211_send_sched_scan_msg(struct sk_buff *msg,
8608 struct cfg80211_registered_device *rdev,
8609 struct net_device *netdev,
15e47304 8610 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 8611{
8612 void *hdr;
8613
15e47304 8614 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 8615 if (!hdr)
8616 return -1;
8617
9360ffd1
DM		 8618 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8619 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8620 goto nla_put_failure;
807f8a8c
LC		 8621
8622 return genlmsg_end(msg, hdr);
8623
8624 nla_put_failure:
8625 genlmsg_cancel(msg, hdr);
8626 return -EMSGSIZE;
8627}
8628
a538e2d5 8629void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 8630 struct wireless_dev *wdev)
a538e2d5
JB		 8631{
8632 struct sk_buff *msg;
8633
58050fce 8634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 8635 if (!msg)
8636 return;
8637
fd014284 8638 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 8639 NL80211_CMD_TRIGGER_SCAN) < 0) {
8640 nlmsg_free(msg);
8641 return;
8642 }
8643
463d0183
JB		 8644 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8645 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 8646}
8647
2a519311 8648void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 8649 struct wireless_dev *wdev)
2a519311
JB		 8650{
8651 struct sk_buff *msg;
8652
fd2120ca 8653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8654 if (!msg)
8655 return;
8656
fd014284 8657 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8658 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 8659 nlmsg_free(msg);
8660 return;
8661 }
8662
463d0183
JB		 8663 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8664 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8665}
8666
8667void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 8668 struct wireless_dev *wdev)
2a519311
JB		 8669{
8670 struct sk_buff *msg;
8671
fd2120ca 8672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8673 if (!msg)
8674 return;
8675
fd014284 8676 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8677 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 8678 nlmsg_free(msg);
8679 return;
8680 }
8681
463d0183
JB		 8682 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8683 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8684}
8685
807f8a8c
LC		 8686void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8687 struct net_device *netdev)
8688{
8689 struct sk_buff *msg;
8690
8691 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8692 if (!msg)
8693 return;
8694
8695 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8696 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8697 nlmsg_free(msg);
8698 return;
8699 }
8700
8701 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8702 nl80211_scan_mcgrp.id, GFP_KERNEL);
8703}
8704
8705void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8706 struct net_device *netdev, u32 cmd)
8707{
8708 struct sk_buff *msg;
8709
58050fce 8710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 8711 if (!msg)
8712 return;
8713
8714 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8715 nlmsg_free(msg);
8716 return;
8717 }
8718
8719 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8720 nl80211_scan_mcgrp.id, GFP_KERNEL);
8721}
8722
73d54c9e
LR		 8723/*
8724 * This can happen on global regulatory changes or device specific settings
8725 * based on custom world regulatory domains.
8726 */
8727void nl80211_send_reg_change_event(struct regulatory_request *request)
8728{
8729 struct sk_buff *msg;
8730 void *hdr;
8731
fd2120ca 8732 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8733 if (!msg)
8734 return;
8735
8736 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8737 if (!hdr) {
8738 nlmsg_free(msg);
8739 return;
8740 }
8741
8742 /* Userspace can always count this one always being set */
9360ffd1
DM		 8743 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8744 goto nla_put_failure;
8745
8746 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8747 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8748 NL80211_REGDOM_TYPE_WORLD))
8749 goto nla_put_failure;
8750 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8751 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8752 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8753 goto nla_put_failure;
8754 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8755 request->intersect) {
8756 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8757 NL80211_REGDOM_TYPE_INTERSECTION))
8758 goto nla_put_failure;
8759 } else {
8760 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8761 NL80211_REGDOM_TYPE_COUNTRY) ||
8762 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8763 request->alpha2))
8764 goto nla_put_failure;
8765 }
8766
f4173766 8767 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8768 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8769 goto nla_put_failure;
73d54c9e 8770
3b7b72ee 8771 genlmsg_end(msg, hdr);
73d54c9e 8772
bc43b28c 8773 rcu_read_lock();
463d0183 8774 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8775 GFP_ATOMIC);
8776 rcu_read_unlock();
73d54c9e
LR		 8777
8778 return;
8779
8780nla_put_failure:
8781 genlmsg_cancel(msg, hdr);
8782 nlmsg_free(msg);
8783}
8784
6039f6d2
JM		 8785static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8786 struct net_device *netdev,
8787 const u8 *buf, size_t len,
e6d6e342 8788 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8789{
8790 struct sk_buff *msg;
8791 void *hdr;
8792
e6d6e342 8793 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8794 if (!msg)
8795 return;
8796
8797 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8798 if (!hdr) {
8799 nlmsg_free(msg);
8800 return;
8801 }
8802
9360ffd1
DM		 8803 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8804 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8805 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8806 goto nla_put_failure;
6039f6d2 8807
3b7b72ee 8808 genlmsg_end(msg, hdr);
6039f6d2 8809
463d0183
JB		 8810 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8811 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8812 return;
8813
8814 nla_put_failure:
8815 genlmsg_cancel(msg, hdr);
8816 nlmsg_free(msg);
8817}
8818
8819void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8820 struct net_device *netdev, const u8 *buf,
8821 size_t len, gfp_t gfp)
6039f6d2
JM		 8822{
8823 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8824 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8825}
8826
8827void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8828 struct net_device *netdev, const u8 *buf,
e6d6e342 8829 size_t len, gfp_t gfp)
6039f6d2 8830{
e6d6e342
JB		 8831 nl80211_send_mlme_event(rdev, netdev, buf, len,
8832 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8833}
8834
53b46b84 8835void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8836 struct net_device *netdev, const u8 *buf,
8837 size_t len, gfp_t gfp)
6039f6d2
JM		 8838{
8839 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8840 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8841}
8842
53b46b84
JM		 8843void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8844 struct net_device *netdev, const u8 *buf,
e6d6e342 8845 size_t len, gfp_t gfp)
6039f6d2
JM		 8846{
8847 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8848 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8849}
8850
cf4e594e
JM		 8851void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8852 struct net_device *netdev, const u8 *buf,
8853 size_t len, gfp_t gfp)
8854{
8855 nl80211_send_mlme_event(rdev, netdev, buf, len,
8856 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8857}
8858
8859void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8860 struct net_device *netdev, const u8 *buf,
8861 size_t len, gfp_t gfp)
8862{
8863 nl80211_send_mlme_event(rdev, netdev, buf, len,
8864 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8865}
8866
1b06bb40
LR		 8867static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8868 struct net_device *netdev, int cmd,
e6d6e342 8869 const u8 *addr, gfp_t gfp)
1965c853
JM		 8870{
8871 struct sk_buff *msg;
8872 void *hdr;
8873
e6d6e342 8874 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8875 if (!msg)
8876 return;
8877
8878 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8879 if (!hdr) {
8880 nlmsg_free(msg);
8881 return;
8882 }
8883
9360ffd1
DM		 8884 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8885 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8886 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8887 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8888 goto nla_put_failure;
1965c853 8889
3b7b72ee 8890 genlmsg_end(msg, hdr);
1965c853 8891
463d0183
JB		 8892 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8893 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8894 return;
8895
8896 nla_put_failure:
8897 genlmsg_cancel(msg, hdr);
8898 nlmsg_free(msg);
8899}
8900
8901void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8902 struct net_device *netdev, const u8 *addr,
8903 gfp_t gfp)
1965c853
JM		 8904{
8905 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8906 addr, gfp);
1965c853
JM		 8907}
8908
8909void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8910 struct net_device *netdev, const u8 *addr,
8911 gfp_t gfp)
1965c853 8912{
e6d6e342
JB		 8913 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8914 addr, gfp);
1965c853
JM		 8915}
8916
b23aa676
SO		 8917void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8918 struct net_device *netdev, const u8 *bssid,
8919 const u8 *req_ie, size_t req_ie_len,
8920 const u8 *resp_ie, size_t resp_ie_len,
8921 u16 status, gfp_t gfp)
8922{
8923 struct sk_buff *msg;
8924 void *hdr;
8925
58050fce 8926 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8927 if (!msg)
8928 return;
8929
8930 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8931 if (!hdr) {
8932 nlmsg_free(msg);
8933 return;
8934 }
8935
9360ffd1
DM		 8936 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8937 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8938 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8939 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8940 (req_ie &&
8941 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8942 (resp_ie &&
8943 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8944 goto nla_put_failure;
b23aa676 8945
3b7b72ee 8946 genlmsg_end(msg, hdr);
b23aa676 8947
463d0183
JB		 8948 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8949 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8950 return;
8951
8952 nla_put_failure:
8953 genlmsg_cancel(msg, hdr);
8954 nlmsg_free(msg);
8955
8956}
8957
8958void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8959 struct net_device *netdev, const u8 *bssid,
8960 const u8 *req_ie, size_t req_ie_len,
8961 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8962{
8963 struct sk_buff *msg;
8964 void *hdr;
8965
58050fce 8966 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8967 if (!msg)
8968 return;
8969
8970 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8971 if (!hdr) {
8972 nlmsg_free(msg);
8973 return;
8974 }
8975
9360ffd1
DM		 8976 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8977 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8978 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8979 (req_ie &&
8980 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8981 (resp_ie &&
8982 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8983 goto nla_put_failure;
b23aa676 8984
3b7b72ee 8985 genlmsg_end(msg, hdr);
b23aa676 8986
463d0183
JB		 8987 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8988 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8989 return;
8990
8991 nla_put_failure:
8992 genlmsg_cancel(msg, hdr);
8993 nlmsg_free(msg);
8994
8995}
8996
8997void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8998 struct net_device *netdev, u16 reason,
667503dd 8999 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9000{
9001 struct sk_buff *msg;
9002 void *hdr;
9003
58050fce 9004 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9005 if (!msg)
9006 return;
9007
9008 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9009 if (!hdr) {
9010 nlmsg_free(msg);
9011 return;
9012 }
9013
9360ffd1
DM		 9014 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9015 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9016 (from_ap && reason &&
9017 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9018 (from_ap &&
9019 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9020 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9021 goto nla_put_failure;
b23aa676 9022
3b7b72ee 9023 genlmsg_end(msg, hdr);
b23aa676 9024
463d0183
JB		 9025 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9026 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9027 return;
9028
9029 nla_put_failure:
9030 genlmsg_cancel(msg, hdr);
9031 nlmsg_free(msg);
9032
9033}
9034
04a773ad
JB		 9035void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9036 struct net_device *netdev, const u8 *bssid,
9037 gfp_t gfp)
9038{
9039 struct sk_buff *msg;
9040 void *hdr;
9041
fd2120ca 9042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9043 if (!msg)
9044 return;
9045
9046 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9047 if (!hdr) {
9048 nlmsg_free(msg);
9049 return;
9050 }
9051
9360ffd1
DM		 9052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9053 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9054 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9055 goto nla_put_failure;
04a773ad 9056
3b7b72ee 9057 genlmsg_end(msg, hdr);
04a773ad 9058
463d0183
JB		 9059 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9060 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9061 return;
9062
9063 nla_put_failure:
9064 genlmsg_cancel(msg, hdr);
9065 nlmsg_free(msg);
9066}
9067
c93b5e71
JC		 9068void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
9069 struct net_device *netdev,
9070 const u8 *macaddr, const u8* ie, u8 ie_len,
9071 gfp_t gfp)
9072{
9073 struct sk_buff *msg;
9074 void *hdr;
9075
9076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9077 if (!msg)
9078 return;
9079
9080 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9081 if (!hdr) {
9082 nlmsg_free(msg);
9083 return;
9084 }
9085
9360ffd1
DM		 9086 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9087 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9088 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
9089 (ie_len && ie &&
9090 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9091 goto nla_put_failure;
c93b5e71 9092
3b7b72ee 9093 genlmsg_end(msg, hdr);
c93b5e71
JC		 9094
9095 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9096 nl80211_mlme_mcgrp.id, gfp);
9097 return;
9098
9099 nla_put_failure:
9100 genlmsg_cancel(msg, hdr);
9101 nlmsg_free(msg);
9102}
9103
a3b8b056
JM		 9104void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9105 struct net_device *netdev, const u8 *addr,
9106 enum nl80211_key_type key_type, int key_id,
e6d6e342 9107 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9108{
9109 struct sk_buff *msg;
9110 void *hdr;
9111
e6d6e342 9112 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9113 if (!msg)
9114 return;
9115
9116 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9117 if (!hdr) {
9118 nlmsg_free(msg);
9119 return;
9120 }
9121
9360ffd1
DM		 9122 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9123 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9124 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9125 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9126 (key_id != -1 &&
9127 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9128 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9129 goto nla_put_failure;
a3b8b056 9130
3b7b72ee 9131 genlmsg_end(msg, hdr);
a3b8b056 9132
463d0183
JB		 9133 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9134 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9135 return;
9136
9137 nla_put_failure:
9138 genlmsg_cancel(msg, hdr);
9139 nlmsg_free(msg);
9140}
9141
6bad8766
LR		 9142void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9143 struct ieee80211_channel *channel_before,
9144 struct ieee80211_channel *channel_after)
9145{
9146 struct sk_buff *msg;
9147 void *hdr;
9148 struct nlattr *nl_freq;
9149
fd2120ca 9150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9151 if (!msg)
9152 return;
9153
9154 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9155 if (!hdr) {
9156 nlmsg_free(msg);
9157 return;
9158 }
9159
9160 /*
9161 * Since we are applying the beacon hint to a wiphy we know its
9162 * wiphy_idx is valid
9163 */
9360ffd1
DM		 9164 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9165 goto nla_put_failure;
6bad8766
LR		 9166
9167 /* Before */
9168 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9169 if (!nl_freq)
9170 goto nla_put_failure;
9171 if (nl80211_msg_put_channel(msg, channel_before))
9172 goto nla_put_failure;
9173 nla_nest_end(msg, nl_freq);
9174
9175 /* After */
9176 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9177 if (!nl_freq)
9178 goto nla_put_failure;
9179 if (nl80211_msg_put_channel(msg, channel_after))
9180 goto nla_put_failure;
9181 nla_nest_end(msg, nl_freq);
9182
3b7b72ee 9183 genlmsg_end(msg, hdr);
6bad8766 9184
463d0183
JB		 9185 rcu_read_lock();
9186 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9187 GFP_ATOMIC);
9188 rcu_read_unlock();
6bad8766
LR		 9189
9190 return;
9191
9192nla_put_failure:
9193 genlmsg_cancel(msg, hdr);
9194 nlmsg_free(msg);
9195}
9196
9588bbd5
JM		 9197static void nl80211_send_remain_on_chan_event(
9198 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9199 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9200 struct ieee80211_channel *chan,
9588bbd5
JM		 9201 unsigned int duration, gfp_t gfp)
9202{
9203 struct sk_buff *msg;
9204 void *hdr;
9205
9206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9207 if (!msg)
9208 return;
9209
9210 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9211 if (!hdr) {
9212 nlmsg_free(msg);
9213 return;
9214 }
9215
9360ffd1 9216 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9217 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9218 wdev->netdev->ifindex)) ||
00f53350 9219 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9220 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9221 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9222 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9223 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9224 goto nla_put_failure;
9588bbd5 9225
9360ffd1
DM		 9226 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9227 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9228 goto nla_put_failure;
9588bbd5 9229
3b7b72ee 9230 genlmsg_end(msg, hdr);
9588bbd5
JM		 9231
9232 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9233 nl80211_mlme_mcgrp.id, gfp);
9234 return;
9235
9236 nla_put_failure:
9237 genlmsg_cancel(msg, hdr);
9238 nlmsg_free(msg);
9239}
9240
9241void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 9242 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9243 struct ieee80211_channel *chan,
9588bbd5
JM		 9244 unsigned int duration, gfp_t gfp)
9245{
9246 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9247 rdev, wdev, cookie, chan,
42d97a59 9248 duration, gfp);
9588bbd5
JM		 9249}
9250
9251void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 9252 struct cfg80211_registered_device *rdev,
9253 struct wireless_dev *wdev,
42d97a59 9254 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 9255{
9256 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9257 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 9258}
9259
98b62183
JB		 9260void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9261 struct net_device *dev, const u8 *mac_addr,
9262 struct station_info *sinfo, gfp_t gfp)
9263{
9264 struct sk_buff *msg;
9265
58050fce 9266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9267 if (!msg)
9268 return;
9269
66266b3a
JL		 9270 if (nl80211_send_station(msg, 0, 0, 0,
9271 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9272 nlmsg_free(msg);
9273 return;
9274 }
9275
9276 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9277 nl80211_mlme_mcgrp.id, gfp);
9278}
9279
ec15e68b
JM		 9280void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9281 struct net_device *dev, const u8 *mac_addr,
9282 gfp_t gfp)
9283{
9284 struct sk_buff *msg;
9285 void *hdr;
9286
58050fce 9287 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9288 if (!msg)
9289 return;
9290
9291 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9292 if (!hdr) {
9293 nlmsg_free(msg);
9294 return;
9295 }
9296
9360ffd1
DM		 9297 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9298 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9299 goto nla_put_failure;
ec15e68b 9300
3b7b72ee 9301 genlmsg_end(msg, hdr);
ec15e68b
JM		 9302
9303 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9304 nl80211_mlme_mcgrp.id, gfp);
9305 return;
9306
9307 nla_put_failure:
9308 genlmsg_cancel(msg, hdr);
9309 nlmsg_free(msg);
9310}
9311
ed44a951
PP		 9312void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9313 struct net_device *dev, const u8 *mac_addr,
9314 enum nl80211_connect_failed_reason reason,
9315 gfp_t gfp)
9316{
9317 struct sk_buff *msg;
9318 void *hdr;
9319
9320 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9321 if (!msg)
9322 return;
9323
9324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9325 if (!hdr) {
9326 nlmsg_free(msg);
9327 return;
9328 }
9329
9330 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9331 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9332 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9333 goto nla_put_failure;
9334
9335 genlmsg_end(msg, hdr);
9336
9337 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9338 nl80211_mlme_mcgrp.id, gfp);
9339 return;
9340
9341 nla_put_failure:
9342 genlmsg_cancel(msg, hdr);
9343 nlmsg_free(msg);
9344}
9345
b92ab5d8
JB		 9346static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9347 const u8 *addr, gfp_t gfp)
28946da7
JB		 9348{
9349 struct wireless_dev *wdev = dev->ieee80211_ptr;
9350 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9351 struct sk_buff *msg;
9352 void *hdr;
9353 int err;
15e47304 9354 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9355
15e47304 9356 if (!nlportid)
28946da7
JB		 9357 return false;
9358
9359 msg = nlmsg_new(100, gfp);
9360 if (!msg)
9361 return true;
9362
b92ab5d8 9363 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9364 if (!hdr) {
9365 nlmsg_free(msg);
9366 return true;
9367 }
9368
9360ffd1
DM		 9369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9370 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9371 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9372 goto nla_put_failure;
28946da7
JB		 9373
9374 err = genlmsg_end(msg, hdr);
9375 if (err < 0) {
9376 nlmsg_free(msg);
9377 return true;
9378 }
9379
15e47304 9380 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9381 return true;
9382
9383 nla_put_failure:
9384 genlmsg_cancel(msg, hdr);
9385 nlmsg_free(msg);
9386 return true;
9387}
9388
b92ab5d8
JB		 9389bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9390{
9391 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9392 addr, gfp);
9393}
9394
9395bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9396 const u8 *addr, gfp_t gfp)
9397{
9398 return __nl80211_unexpected_frame(dev,
9399 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9400 addr, gfp);
9401}
9402
2e161f78 9403int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9404 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9405 int freq, int sig_dbm,
9406 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9407{
71bbc994 9408 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9409 struct sk_buff *msg;
9410 void *hdr;
026331c4
JM		 9411
9412 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9413 if (!msg)
9414 return -ENOMEM;
9415
2e161f78 9416 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9417 if (!hdr) {
9418 nlmsg_free(msg);
9419 return -ENOMEM;
9420 }
9421
9360ffd1 9422 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9423 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9424 netdev->ifindex)) ||
9360ffd1
DM		 9425 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9426 (sig_dbm &&
9427 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9428 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9429 goto nla_put_failure;
026331c4 9430
3b7b72ee 9431 genlmsg_end(msg, hdr);
026331c4 9432
15e47304 9433 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9434
9435 nla_put_failure:
9436 genlmsg_cancel(msg, hdr);
9437 nlmsg_free(msg);
9438 return -ENOBUFS;
9439}
9440
2e161f78 9441void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 9442 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 9443 const u8 *buf, size_t len, bool ack,
9444 gfp_t gfp)
026331c4 9445{
71bbc994 9446 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9447 struct sk_buff *msg;
9448 void *hdr;
9449
9450 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9451 if (!msg)
9452 return;
9453
2e161f78 9454 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9455 if (!hdr) {
9456 nlmsg_free(msg);
9457 return;
9458 }
9459
9360ffd1 9460 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9461 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9462 netdev->ifindex)) ||
9360ffd1
DM		 9463 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9464 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9465 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9466 goto nla_put_failure;
026331c4 9467
3b7b72ee 9468 genlmsg_end(msg, hdr);
026331c4
JM		 9469
9470 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9471 return;
9472
9473 nla_put_failure:
9474 genlmsg_cancel(msg, hdr);
9475 nlmsg_free(msg);
9476}
9477
d6dc1a38
JO		 9478void
9479nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9480 struct net_device *netdev,
9481 enum nl80211_cqm_rssi_threshold_event rssi_event,
9482 gfp_t gfp)
9483{
9484 struct sk_buff *msg;
9485 struct nlattr *pinfoattr;
9486 void *hdr;
9487
58050fce 9488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 9489 if (!msg)
9490 return;
9491
9492 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9493 if (!hdr) {
9494 nlmsg_free(msg);
9495 return;
9496 }
9497
9360ffd1
DM		 9498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9499 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9500 goto nla_put_failure;
d6dc1a38
JO		 9501
9502 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9503 if (!pinfoattr)
9504 goto nla_put_failure;
9505
9360ffd1
DM		 9506 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9507 rssi_event))
9508 goto nla_put_failure;
d6dc1a38
JO		 9509
9510 nla_nest_end(msg, pinfoattr);
9511
3b7b72ee 9512 genlmsg_end(msg, hdr);
d6dc1a38
JO		 9513
9514 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9515 nl80211_mlme_mcgrp.id, gfp);
9516 return;
9517
9518 nla_put_failure:
9519 genlmsg_cancel(msg, hdr);
9520 nlmsg_free(msg);
9521}
9522
e5497d76
JB		 9523void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9524 struct net_device *netdev, const u8 *bssid,
9525 const u8 *replay_ctr, gfp_t gfp)
9526{
9527 struct sk_buff *msg;
9528 struct nlattr *rekey_attr;
9529 void *hdr;
9530
58050fce 9531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 9532 if (!msg)
9533 return;
9534
9535 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9536 if (!hdr) {
9537 nlmsg_free(msg);
9538 return;
9539 }
9540
9360ffd1
DM		 9541 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9542 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9543 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9544 goto nla_put_failure;
e5497d76
JB		 9545
9546 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9547 if (!rekey_attr)
9548 goto nla_put_failure;
9549
9360ffd1
DM		 9550 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9551 NL80211_REPLAY_CTR_LEN, replay_ctr))
9552 goto nla_put_failure;
e5497d76
JB		 9553
9554 nla_nest_end(msg, rekey_attr);
9555
3b7b72ee 9556 genlmsg_end(msg, hdr);
e5497d76
JB		 9557
9558 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9559 nl80211_mlme_mcgrp.id, gfp);
9560 return;
9561
9562 nla_put_failure:
9563 genlmsg_cancel(msg, hdr);
9564 nlmsg_free(msg);
9565}
9566
c9df56b4
JM		 9567void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9568 struct net_device *netdev, int index,
9569 const u8 *bssid, bool preauth, gfp_t gfp)
9570{
9571 struct sk_buff *msg;
9572 struct nlattr *attr;
9573 void *hdr;
9574
58050fce 9575 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 9576 if (!msg)
9577 return;
9578
9579 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9580 if (!hdr) {
9581 nlmsg_free(msg);
9582 return;
9583 }
9584
9360ffd1
DM		 9585 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9586 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9587 goto nla_put_failure;
c9df56b4
JM		 9588
9589 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9590 if (!attr)
9591 goto nla_put_failure;
9592
9360ffd1
DM		 9593 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9594 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9595 (preauth &&
9596 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9597 goto nla_put_failure;
c9df56b4
JM		 9598
9599 nla_nest_end(msg, attr);
9600
3b7b72ee 9601 genlmsg_end(msg, hdr);
c9df56b4
JM		 9602
9603 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9604 nl80211_mlme_mcgrp.id, gfp);
9605 return;
9606
9607 nla_put_failure:
9608 genlmsg_cancel(msg, hdr);
9609 nlmsg_free(msg);
9610}
9611
5314526b 9612void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 9613 struct net_device *netdev,
9614 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 9615{
9616 struct sk_buff *msg;
9617 void *hdr;
9618
58050fce 9619 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 9620 if (!msg)
9621 return;
9622
9623 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9624 if (!hdr) {
9625 nlmsg_free(msg);
9626 return;
9627 }
9628
683b6d3b
JB		 9629 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9630 goto nla_put_failure;
9631
9632 if (nl80211_send_chandef(msg, chandef))
7eab0f64 9633 goto nla_put_failure;
5314526b
TP		 9634
9635 genlmsg_end(msg, hdr);
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
84f10708
TP		 9646void
9647nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9648 struct net_device *netdev, const u8 *peer,
9649 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9650{
9651 struct sk_buff *msg;
9652 struct nlattr *pinfoattr;
9653 void *hdr;
9654
9655 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9656 if (!msg)
9657 return;
9658
9659 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9660 if (!hdr) {
9661 nlmsg_free(msg);
9662 return;
9663 }
9664
9665 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9666 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9667 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9668 goto nla_put_failure;
9669
9670 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9671 if (!pinfoattr)
9672 goto nla_put_failure;
9673
9674 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9675 goto nla_put_failure;
9676
9677 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9678 goto nla_put_failure;
9679
9680 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9681 goto nla_put_failure;
9682
9683 nla_nest_end(msg, pinfoattr);
9684
9685 genlmsg_end(msg, hdr);
9686
9687 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9688 nl80211_mlme_mcgrp.id, gfp);
9689 return;
9690
9691 nla_put_failure:
9692 genlmsg_cancel(msg, hdr);
9693 nlmsg_free(msg);
9694}
9695
04f39047
SW		 9696void
9697nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9698 struct cfg80211_chan_def *chandef,
9699 enum nl80211_radar_event event,
9700 struct net_device *netdev, gfp_t gfp)
9701{
9702 struct sk_buff *msg;
9703 void *hdr;
9704
9705 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9706 if (!msg)
9707 return;
9708
9709 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9710 if (!hdr) {
9711 nlmsg_free(msg);
9712 return;
9713 }
9714
9715 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9716 goto nla_put_failure;
9717
9718 /* NOP and radar events don't need a netdev parameter */
9719 if (netdev) {
9720 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9721
9722 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9723 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9724 goto nla_put_failure;
9725 }
9726
9727 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9728 goto nla_put_failure;
9729
9730 if (nl80211_send_chandef(msg, chandef))
9731 goto nla_put_failure;
9732
9733 if (genlmsg_end(msg, hdr) < 0) {
9734 nlmsg_free(msg);
9735 return;
9736 }
9737
9738 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9739 nl80211_mlme_mcgrp.id, gfp);
9740 return;
9741
9742 nla_put_failure:
9743 genlmsg_cancel(msg, hdr);
9744 nlmsg_free(msg);
9745}
9746
c063dbf5
JB		 9747void
9748nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9749 struct net_device *netdev, const u8 *peer,
9750 u32 num_packets, gfp_t gfp)
9751{
9752 struct sk_buff *msg;
9753 struct nlattr *pinfoattr;
9754 void *hdr;
9755
58050fce 9756 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 9757 if (!msg)
9758 return;
9759
9760 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9761 if (!hdr) {
9762 nlmsg_free(msg);
9763 return;
9764 }
9765
9360ffd1
DM		 9766 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9767 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9768 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9769 goto nla_put_failure;
c063dbf5
JB		 9770
9771 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9772 if (!pinfoattr)
9773 goto nla_put_failure;
9774
9360ffd1
DM		 9775 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9776 goto nla_put_failure;
c063dbf5
JB		 9777
9778 nla_nest_end(msg, pinfoattr);
9779
3b7b72ee 9780 genlmsg_end(msg, hdr);
c063dbf5
JB		 9781
9782 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9783 nl80211_mlme_mcgrp.id, gfp);
9784 return;
9785
9786 nla_put_failure:
9787 genlmsg_cancel(msg, hdr);
9788 nlmsg_free(msg);
9789}
9790
7f6cf311
JB		 9791void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9792 u64 cookie, bool acked, gfp_t gfp)
9793{
9794 struct wireless_dev *wdev = dev->ieee80211_ptr;
9795 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9796 struct sk_buff *msg;
9797 void *hdr;
9798 int err;
9799
4ee3e063
BL		 9800 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9801
58050fce 9802 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9803
7f6cf311
JB		 9804 if (!msg)
9805 return;
9806
9807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9808 if (!hdr) {
9809 nlmsg_free(msg);
9810 return;
9811 }
9812
9360ffd1
DM		 9813 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9814 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9815 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9816 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9817 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9818 goto nla_put_failure;
7f6cf311
JB		 9819
9820 err = genlmsg_end(msg, hdr);
9821 if (err < 0) {
9822 nlmsg_free(msg);
9823 return;
9824 }
9825
9826 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9827 nl80211_mlme_mcgrp.id, gfp);
9828 return;
9829
9830 nla_put_failure:
9831 genlmsg_cancel(msg, hdr);
9832 nlmsg_free(msg);
9833}
9834EXPORT_SYMBOL(cfg80211_probe_status);
9835
5e760230
JB		 9836void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9837 const u8 *frame, size_t len,
37c73b5f 9838 int freq, int sig_dbm)
5e760230
JB		 9839{
9840 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9841 struct sk_buff *msg;
9842 void *hdr;
37c73b5f 9843 struct cfg80211_beacon_registration *reg;
5e760230 9844
4ee3e063
BL		 9845 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9846
37c73b5f
BG		 9847 spin_lock_bh(&rdev->beacon_registrations_lock);
9848 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9849 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9850 if (!msg) {
9851 spin_unlock_bh(&rdev->beacon_registrations_lock);
9852 return;
9853 }
5e760230 9854
37c73b5f
BG		 9855 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9856 if (!hdr)
9857 goto nla_put_failure;
5e760230 9858
37c73b5f
BG		 9859 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9860 (freq &&
9861 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9862 (sig_dbm &&
9863 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9864 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9865 goto nla_put_failure;
5e760230 9866
37c73b5f 9867 genlmsg_end(msg, hdr);
5e760230 9868
37c73b5f
BG		 9869 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9870 }
9871 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9872 return;
9873
9874 nla_put_failure:
37c73b5f
BG		 9875 spin_unlock_bh(&rdev->beacon_registrations_lock);
9876 if (hdr)
9877 genlmsg_cancel(msg, hdr);
5e760230
JB		 9878 nlmsg_free(msg);
9879}
9880EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9881
cd8f7cb4
JB		 9882#ifdef CONFIG_PM
9883void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9884 struct cfg80211_wowlan_wakeup *wakeup,
9885 gfp_t gfp)
9886{
9887 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9888 struct sk_buff *msg;
9889 void *hdr;
9890 int err, size = 200;
9891
9892 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9893
9894 if (wakeup)
9895 size += wakeup->packet_present_len;
9896
9897 msg = nlmsg_new(size, gfp);
9898 if (!msg)
9899 return;
9900
9901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9902 if (!hdr)
9903 goto free_msg;
9904
9905 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9906 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9907 goto free_msg;
9908
9909 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9910 wdev->netdev->ifindex))
9911 goto free_msg;
9912
9913 if (wakeup) {
9914 struct nlattr *reasons;
9915
9916 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9917
9918 if (wakeup->disconnect &&
9919 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9920 goto free_msg;
9921 if (wakeup->magic_pkt &&
9922 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9923 goto free_msg;
9924 if (wakeup->gtk_rekey_failure &&
9925 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9926 goto free_msg;
9927 if (wakeup->eap_identity_req &&
9928 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9929 goto free_msg;
9930 if (wakeup->four_way_handshake &&
9931 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9932 goto free_msg;
9933 if (wakeup->rfkill_release &&
9934 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9935 goto free_msg;
9936
9937 if (wakeup->pattern_idx >= 0 &&
9938 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9939 wakeup->pattern_idx))
9940 goto free_msg;
9941
2a0e047e
JB		 9942 if (wakeup->tcp_match)
9943 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9944
9945 if (wakeup->tcp_connlost)
9946 nla_put_flag(msg,
9947 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9948
9949 if (wakeup->tcp_nomoretokens)
9950 nla_put_flag(msg,
9951 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9952
cd8f7cb4
JB		 9953 if (wakeup->packet) {
9954 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9955 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9956
9957 if (!wakeup->packet_80211) {
9958 pkt_attr =
9959 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9960 len_attr =
9961 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9962 }
9963
9964 if (wakeup->packet_len &&
9965 nla_put_u32(msg, len_attr, wakeup->packet_len))
9966 goto free_msg;
9967
9968 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9969 wakeup->packet))
9970 goto free_msg;
9971 }
9972
9973 nla_nest_end(msg, reasons);
9974 }
9975
9976 err = genlmsg_end(msg, hdr);
9977 if (err < 0)
9978 goto free_msg;
9979
9980 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9981 nl80211_mlme_mcgrp.id, gfp);
9982 return;
9983
9984 free_msg:
9985 nlmsg_free(msg);
9986}
9987EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9988#endif
9989
3475b094
JM		 9990void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9991 enum nl80211_tdls_operation oper,
9992 u16 reason_code, gfp_t gfp)
9993{
9994 struct wireless_dev *wdev = dev->ieee80211_ptr;
9995 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9996 struct sk_buff *msg;
9997 void *hdr;
9998 int err;
9999
10000 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10001 reason_code);
10002
10003 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10004 if (!msg)
10005 return;
10006
10007 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10008 if (!hdr) {
10009 nlmsg_free(msg);
10010 return;
10011 }
10012
10013 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10014 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10015 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10016 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10017 (reason_code > 0 &&
10018 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10019 goto nla_put_failure;
10020
10021 err = genlmsg_end(msg, hdr);
10022 if (err < 0) {
10023 nlmsg_free(msg);
10024 return;
10025 }
10026
10027 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10028 nl80211_mlme_mcgrp.id, gfp);
10029 return;
10030
10031 nla_put_failure:
10032 genlmsg_cancel(msg, hdr);
10033 nlmsg_free(msg);
10034}
10035EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10036
026331c4
JM		 10037static int nl80211_netlink_notify(struct notifier_block * nb,
10038 unsigned long state,
10039 void *_notify)
10040{
10041 struct netlink_notify *notify = _notify;
10042 struct cfg80211_registered_device *rdev;
10043 struct wireless_dev *wdev;
37c73b5f 10044 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10045
10046 if (state != NETLINK_URELEASE)
10047 return NOTIFY_DONE;
10048
10049 rcu_read_lock();
10050
5e760230 10051 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10052 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10053 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10054
10055 spin_lock_bh(&rdev->beacon_registrations_lock);
10056 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10057 list) {
10058 if (reg->nlportid == notify->portid) {
10059 list_del(&reg->list);
10060 kfree(reg);
10061 break;
10062 }
10063 }
10064 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10065 }
026331c4
JM		 10066
10067 rcu_read_unlock();
10068
10069 return NOTIFY_DONE;
10070}
10071
10072static struct notifier_block nl80211_netlink_notifier = {
10073 .notifier_call = nl80211_netlink_notify,
10074};
10075
55682965
JB		 10076/* initialisation/exit functions */
10077
10078int nl80211_init(void)
10079{
0d63cbb5 10080 int err;
55682965 10081
0d63cbb5
MM		 10082 err = genl_register_family_with_ops(&nl80211_fam,
10083 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10084 if (err)
10085 return err;
10086
55682965
JB		 10087 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10088 if (err)
10089 goto err_out;
10090
2a519311
JB		 10091 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10092 if (err)
10093 goto err_out;
10094
73d54c9e
LR		 10095 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10096 if (err)
10097 goto err_out;
10098
6039f6d2
JM		 10099 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10100 if (err)
10101 goto err_out;
10102
aff89a9b
JB		 10103#ifdef CONFIG_NL80211_TESTMODE
10104 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10105 if (err)
10106 goto err_out;
10107#endif
10108
026331c4
JM		 10109 err = netlink_register_notifier(&nl80211_netlink_notifier);
10110 if (err)
10111 goto err_out;
10112
55682965
JB		 10113 return 0;
10114 err_out:
10115 genl_unregister_family(&nl80211_fam);
10116 return err;
10117}
10118
10119void nl80211_exit(void)
10120{
026331c4 10121 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10122 genl_unregister_family(&nl80211_fam);
10123}
Linux kernel - Deliverables
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