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mac80211: fix copy-paste typo in Kconfig
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
27 struct genl_info *info,
28 struct cfg80211_crypto_settings *settings,
29 int cipher_limit);
30
4c476991
JB		 31static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
32 struct genl_info *info);
33static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35
55682965
JB		 36/* the netlink family */
37static struct genl_family nl80211_fam = {
38 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
39 .name = "nl80211", /* have users key off the name instead */
40 .hdrsize = 0, /* no private header */
41 .version = 1, /* no particular meaning now */
42 .maxattr = NL80211_ATTR_MAX,
463d0183 43 .netnsok = true,
4c476991
JB		 44 .pre_doit = nl80211_pre_doit,
45 .post_doit = nl80211_post_doit,
55682965
JB		 46};
47
89a54e48
JB		 48/* returns ERR_PTR values */
49static struct wireless_dev *
50__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 51{
89a54e48
JB		 52 struct cfg80211_registered_device *rdev;
53 struct wireless_dev *result = NULL;
54 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
55 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
56 u64 wdev_id;
57 int wiphy_idx = -1;
58 int ifidx = -1;
55682965 59
89a54e48 60 assert_cfg80211_lock();
55682965 61
89a54e48
JB		 62 if (!have_ifidx && !have_wdev_id)
63 return ERR_PTR(-EINVAL);
55682965 64
89a54e48
JB		 65 if (have_ifidx)
66 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
67 if (have_wdev_id) {
68 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
69 wiphy_idx = wdev_id >> 32;
55682965
JB		 70 }
71
89a54e48
JB		 72 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
73 struct wireless_dev *wdev;
74
75 if (wiphy_net(&rdev->wiphy) != netns)
76 continue;
77
78 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
79 continue;
80
81 mutex_lock(&rdev->devlist_mtx);
82 list_for_each_entry(wdev, &rdev->wdev_list, list) {
83 if (have_ifidx && wdev->netdev &&
84 wdev->netdev->ifindex == ifidx) {
85 result = wdev;
86 break;
87 }
88 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
89 result = wdev;
90 break;
91 }
92 }
93 mutex_unlock(&rdev->devlist_mtx);
94
95 if (result)
96 break;
97 }
98
99 if (result)
100 return result;
101 return ERR_PTR(-ENODEV);
55682965
JB		 102}
103
a9455408 104static struct cfg80211_registered_device *
878d9ec7 105__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 106{
7fee4778
JB		 107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
a9455408
JB		 109
110 assert_cfg80211_lock();
111
878d9ec7 112 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 115 return ERR_PTR(-EINVAL);
116
878d9ec7 117 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 118 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 120
89a54e48
JB		 121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
124 bool found = false;
125
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
127 if (tmp) {
128 /* make sure wdev exists */
129 mutex_lock(&tmp->devlist_mtx);
130 list_for_each_entry(wdev, &tmp->wdev_list, list) {
131 if (wdev->identifier != (u32)wdev_id)
132 continue;
133 found = true;
134 break;
135 }
136 mutex_unlock(&tmp->devlist_mtx);
137
138 if (!found)
139 tmp = NULL;
140
141 if (rdev && tmp != rdev)
142 return ERR_PTR(-EINVAL);
143 rdev = tmp;
144 }
145 }
146
878d9ec7
JB		 147 if (attrs[NL80211_ATTR_IFINDEX]) {
148 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 149 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 150 if (netdev) {
151 if (netdev->ieee80211_ptr)
152 tmp = wiphy_to_dev(
153 netdev->ieee80211_ptr->wiphy);
154 else
155 tmp = NULL;
156
157 dev_put(netdev);
158
159 /* not wireless device -- return error */
160 if (!tmp)
161 return ERR_PTR(-EINVAL);
162
163 /* mismatch -- return error */
164 if (rdev && tmp != rdev)
165 return ERR_PTR(-EINVAL);
166
167 rdev = tmp;
a9455408 168 }
a9455408 169 }
a9455408 170
4f7eff10
JB		 171 if (!rdev)
172 return ERR_PTR(-ENODEV);
a9455408 173
4f7eff10
JB		 174 if (netns != wiphy_net(&rdev->wiphy))
175 return ERR_PTR(-ENODEV);
176
177 return rdev;
a9455408
JB		 178}
179
180/*
181 * This function returns a pointer to the driver
182 * that the genl_info item that is passed refers to.
183 * If successful, it returns non-NULL and also locks
184 * the driver's mutex!
185 *
186 * This means that you need to call cfg80211_unlock_rdev()
187 * before being allowed to acquire &cfg80211_mutex!
188 *
189 * This is necessary because we need to lock the global
190 * mutex to get an item off the list safely, and then
191 * we lock the rdev mutex so it doesn't go away under us.
192 *
193 * We don't want to keep cfg80211_mutex locked
194 * for all the time in order to allow requests on
195 * other interfaces to go through at the same time.
196 *
197 * The result of this can be a PTR_ERR and hence must
198 * be checked with IS_ERR() for errors.
199 */
200static struct cfg80211_registered_device *
4f7eff10 201cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 202{
203 struct cfg80211_registered_device *rdev;
204
205 mutex_lock(&cfg80211_mutex);
878d9ec7 206 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 207
208 /* if it is not an error we grab the lock on
209 * it to assure it won't be going away while
210 * we operate on it */
211 if (!IS_ERR(rdev))
212 mutex_lock(&rdev->mtx);
213
214 mutex_unlock(&cfg80211_mutex);
215
216 return rdev;
217}
218
55682965 219/* policy for the attributes */
b54452b0 220static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 221 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
222 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 223 .len = 20-1 },
31888487 224 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 225 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 226 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 227 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
228 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
230 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 231 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 232
233 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 236
e007b857
EP		 237 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
238 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 239
b9454e83 240 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 241 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
242 .len = WLAN_MAX_KEY_LEN },
243 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
244 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
245 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 246 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 247 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 248
249 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
250 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
251 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 255 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
257 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
259 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 260 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 261 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 262 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 263 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 264 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 265 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 266
b2e1b302
LR		 267 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
268 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269
9f1ba906
JM		 270 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 273 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
274 .len = NL80211_MAX_SUPP_RATES },
50b12f59 275 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 276
24bdd9f4 277 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 278 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 279
6c739419 280 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 281
282 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
283 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 285 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 287
288 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_SSID_LEN },
290 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
291 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 292 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 293 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 294 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 295 [NL80211_ATTR_STA_FLAGS2] = {
296 .len = sizeof(struct nl80211_sta_flag_update),
297 },
3f77316c 298 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 299 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
300 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 301 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
302 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
303 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 304 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 305 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 306 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
307 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 308 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
309 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 310 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 311 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 314 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 315 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 316 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 317 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 318 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 320 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 321 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
322 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 323 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 324 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 325 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 326 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 327 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 328 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 329 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 330 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 331 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 332 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 336 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 337 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 338 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 339 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
351 },
1d9d9213 352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
55682965
JB		 360};
361
e31b8213 362/* policy for the key attributes */
b54452b0 363static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 364 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 365 [NL80211_KEY_IDX] = { .type = NLA_U8 },
366 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 367 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 368 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
369 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 370 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 371 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
372};
373
374/* policy for the key default flags */
375static const struct nla_policy
376nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
377 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
378 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 379};
380
ff1b6e69
JB		 381/* policy for WoWLAN attributes */
382static const struct nla_policy
383nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
384 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
385 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
386 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 388 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
389 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
390 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
391 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 392};
393
e5497d76
JB		 394/* policy for GTK rekey offload attributes */
395static const struct nla_policy
396nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
397 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
398 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
399 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
400};
401
a1f1c21c
LC		 402static const struct nla_policy
403nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 404 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 405 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 406 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 407};
408
a043897a
HS		 409/* ifidx get helper */
410static int nl80211_get_ifidx(struct netlink_callback *cb)
411{
412 int res;
413
414 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
415 nl80211_fam.attrbuf, nl80211_fam.maxattr,
416 nl80211_policy);
417 if (res)
418 return res;
419
420 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
421 return -EINVAL;
422
423 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
424 if (!res)
425 return -EINVAL;
426 return res;
427}
428
67748893
JB		 429static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
430 struct netlink_callback *cb,
431 struct cfg80211_registered_device **rdev,
432 struct net_device **dev)
433{
434 int ifidx = cb->args[0];
435 int err;
436
437 if (!ifidx)
438 ifidx = nl80211_get_ifidx(cb);
439 if (ifidx < 0)
440 return ifidx;
441
442 cb->args[0] = ifidx;
443
444 rtnl_lock();
445
446 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
447 if (!*dev) {
448 err = -ENODEV;
449 goto out_rtnl;
450 }
451
452 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 453 if (IS_ERR(*rdev)) {
454 err = PTR_ERR(*rdev);
67748893
JB		 455 goto out_rtnl;
456 }
457
458 return 0;
459 out_rtnl:
460 rtnl_unlock();
461 return err;
462}
463
464static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
465{
466 cfg80211_unlock_rdev(rdev);
467 rtnl_unlock();
468}
469
f4a11bb0
JB		 470/* IE validation */
471static bool is_valid_ie_attr(const struct nlattr *attr)
472{
473 const u8 *pos;
474 int len;
475
476 if (!attr)
477 return true;
478
479 pos = nla_data(attr);
480 len = nla_len(attr);
481
482 while (len) {
483 u8 elemlen;
484
485 if (len < 2)
486 return false;
487 len -= 2;
488
489 elemlen = pos[1];
490 if (elemlen > len)
491 return false;
492
493 len -= elemlen;
494 pos += 2 + elemlen;
495 }
496
497 return true;
498}
499
55682965 500/* message building helper */
15e47304 501static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 502 int flags, u8 cmd)
503{
504 /* since there is no private header just add the generic one */
15e47304 505 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 506}
507
5dab3b8a
LR		 508static int nl80211_msg_put_channel(struct sk_buff *msg,
509 struct ieee80211_channel *chan)
510{
9360ffd1
DM		 511 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
512 chan->center_freq))
513 goto nla_put_failure;
5dab3b8a 514
9360ffd1
DM		 515 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
516 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
517 goto nla_put_failure;
518 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
519 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
520 goto nla_put_failure;
521 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
522 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
523 goto nla_put_failure;
524 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
525 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
526 goto nla_put_failure;
5dab3b8a 527
9360ffd1
DM		 528 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
529 DBM_TO_MBM(chan->max_power)))
530 goto nla_put_failure;
5dab3b8a
LR		 531
532 return 0;
533
534 nla_put_failure:
535 return -ENOBUFS;
536}
537
55682965
JB		 538/* netlink command implementations */
539
b9454e83
JB		 540struct key_parse {
541 struct key_params p;
542 int idx;
e31b8213 543 int type;
b9454e83 544 bool def, defmgmt;
dbd2fd65 545 bool def_uni, def_multi;
b9454e83
JB		 546};
547
548static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
549{
550 struct nlattr *tb[NL80211_KEY_MAX + 1];
551 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
552 nl80211_key_policy);
553 if (err)
554 return err;
555
556 k->def = !!tb[NL80211_KEY_DEFAULT];
557 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
558
dbd2fd65
JB		 559 if (k->def) {
560 k->def_uni = true;
561 k->def_multi = true;
562 }
563 if (k->defmgmt)
564 k->def_multi = true;
565
b9454e83
JB		 566 if (tb[NL80211_KEY_IDX])
567 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
568
569 if (tb[NL80211_KEY_DATA]) {
570 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
571 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
572 }
573
574 if (tb[NL80211_KEY_SEQ]) {
575 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
576 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
577 }
578
579 if (tb[NL80211_KEY_CIPHER])
580 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
581
e31b8213
JB		 582 if (tb[NL80211_KEY_TYPE]) {
583 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
584 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
585 return -EINVAL;
586 }
587
dbd2fd65
JB		 588 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
589 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 590 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
591 tb[NL80211_KEY_DEFAULT_TYPES],
592 nl80211_key_default_policy);
dbd2fd65
JB		 593 if (err)
594 return err;
595
596 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
597 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
598 }
599
b9454e83
JB		 600 return 0;
601}
602
603static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
604{
605 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
606 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
607 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
608 }
609
610 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
611 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
612 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
613 }
614
615 if (info->attrs[NL80211_ATTR_KEY_IDX])
616 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
617
618 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
619 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
620
621 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
622 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
623
dbd2fd65
JB		 624 if (k->def) {
625 k->def_uni = true;
626 k->def_multi = true;
627 }
628 if (k->defmgmt)
629 k->def_multi = true;
630
e31b8213
JB		 631 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
632 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
633 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
634 return -EINVAL;
635 }
636
dbd2fd65
JB		 637 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
638 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
639 int err = nla_parse_nested(
640 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
641 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
642 nl80211_key_default_policy);
643 if (err)
644 return err;
645
646 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
647 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
648 }
649
b9454e83
JB		 650 return 0;
651}
652
653static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
654{
655 int err;
656
657 memset(k, 0, sizeof(*k));
658 k->idx = -1;
e31b8213 659 k->type = -1;
b9454e83
JB		 660
661 if (info->attrs[NL80211_ATTR_KEY])
662 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
663 else
664 err = nl80211_parse_key_old(info, k);
665
666 if (err)
667 return err;
668
669 if (k->def && k->defmgmt)
670 return -EINVAL;
671
dbd2fd65
JB		 672 if (k->defmgmt) {
673 if (k->def_uni || !k->def_multi)
674 return -EINVAL;
675 }
676
b9454e83
JB		 677 if (k->idx != -1) {
678 if (k->defmgmt) {
679 if (k->idx < 4 || k->idx > 5)
680 return -EINVAL;
681 } else if (k->def) {
682 if (k->idx < 0 || k->idx > 3)
683 return -EINVAL;
684 } else {
685 if (k->idx < 0 || k->idx > 5)
686 return -EINVAL;
687 }
688 }
689
690 return 0;
691}
692
fffd0934
JB		 693static struct cfg80211_cached_keys *
694nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
695 struct nlattr *keys)
696{
697 struct key_parse parse;
698 struct nlattr *key;
699 struct cfg80211_cached_keys *result;
700 int rem, err, def = 0;
701
702 result = kzalloc(sizeof(*result), GFP_KERNEL);
703 if (!result)
704 return ERR_PTR(-ENOMEM);
705
706 result->def = -1;
707 result->defmgmt = -1;
708
709 nla_for_each_nested(key, keys, rem) {
710 memset(&parse, 0, sizeof(parse));
711 parse.idx = -1;
712
713 err = nl80211_parse_key_new(key, &parse);
714 if (err)
715 goto error;
716 err = -EINVAL;
717 if (!parse.p.key)
718 goto error;
719 if (parse.idx < 0 || parse.idx > 4)
720 goto error;
721 if (parse.def) {
722 if (def)
723 goto error;
724 def = 1;
725 result->def = parse.idx;
dbd2fd65
JB		 726 if (!parse.def_uni || !parse.def_multi)
727 goto error;
fffd0934
JB		 728 } else if (parse.defmgmt)
729 goto error;
730 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 731 parse.idx, false, NULL);
fffd0934
JB		 732 if (err)
733 goto error;
734 result->params[parse.idx].cipher = parse.p.cipher;
735 result->params[parse.idx].key_len = parse.p.key_len;
736 result->params[parse.idx].key = result->data[parse.idx];
737 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
738 }
739
740 return result;
741 error:
742 kfree(result);
743 return ERR_PTR(err);
744}
745
746static int nl80211_key_allowed(struct wireless_dev *wdev)
747{
748 ASSERT_WDEV_LOCK(wdev);
749
fffd0934
JB		 750 switch (wdev->iftype) {
751 case NL80211_IFTYPE_AP:
752 case NL80211_IFTYPE_AP_VLAN:
074ac8df 753 case NL80211_IFTYPE_P2P_GO:
ff973af7 754 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 755 break;
756 case NL80211_IFTYPE_ADHOC:
757 if (!wdev->current_bss)
758 return -ENOLINK;
759 break;
760 case NL80211_IFTYPE_STATION:
074ac8df 761 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 762 if (wdev->sme_state != CFG80211_SME_CONNECTED)
763 return -ENOLINK;
764 break;
765 default:
766 return -EINVAL;
767 }
768
769 return 0;
770}
771
7527a782
JB		 772static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
773{
774 struct nlattr *nl_modes = nla_nest_start(msg, attr);
775 int i;
776
777 if (!nl_modes)
778 goto nla_put_failure;
779
780 i = 0;
781 while (ifmodes) {
9360ffd1
DM		 782 if ((ifmodes & 1) && nla_put_flag(msg, i))
783 goto nla_put_failure;
7527a782
JB		 784 ifmodes >>= 1;
785 i++;
786 }
787
788 nla_nest_end(msg, nl_modes);
789 return 0;
790
791nla_put_failure:
792 return -ENOBUFS;
793}
794
795static int nl80211_put_iface_combinations(struct wiphy *wiphy,
796 struct sk_buff *msg)
797{
798 struct nlattr *nl_combis;
799 int i, j;
800
801 nl_combis = nla_nest_start(msg,
802 NL80211_ATTR_INTERFACE_COMBINATIONS);
803 if (!nl_combis)
804 goto nla_put_failure;
805
806 for (i = 0; i < wiphy->n_iface_combinations; i++) {
807 const struct ieee80211_iface_combination *c;
808 struct nlattr *nl_combi, *nl_limits;
809
810 c = &wiphy->iface_combinations[i];
811
812 nl_combi = nla_nest_start(msg, i + 1);
813 if (!nl_combi)
814 goto nla_put_failure;
815
816 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
817 if (!nl_limits)
818 goto nla_put_failure;
819
820 for (j = 0; j < c->n_limits; j++) {
821 struct nlattr *nl_limit;
822
823 nl_limit = nla_nest_start(msg, j + 1);
824 if (!nl_limit)
825 goto nla_put_failure;
9360ffd1
DM		 826 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
827 c->limits[j].max))
828 goto nla_put_failure;
7527a782
JB		 829 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
830 c->limits[j].types))
831 goto nla_put_failure;
832 nla_nest_end(msg, nl_limit);
833 }
834
835 nla_nest_end(msg, nl_limits);
836
9360ffd1
DM		 837 if (c->beacon_int_infra_match &&
838 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
839 goto nla_put_failure;
840 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
841 c->num_different_channels) ||
842 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
843 c->max_interfaces))
844 goto nla_put_failure;
7527a782
JB		 845
846 nla_nest_end(msg, nl_combi);
847 }
848
849 nla_nest_end(msg, nl_combis);
850
851 return 0;
852nla_put_failure:
853 return -ENOBUFS;
854}
855
15e47304 856static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 857 struct cfg80211_registered_device *dev)
858{
859 void *hdr;
ee688b00
JB		 860 struct nlattr *nl_bands, *nl_band;
861 struct nlattr *nl_freqs, *nl_freq;
862 struct nlattr *nl_rates, *nl_rate;
8fdc621d 863 struct nlattr *nl_cmds;
ee688b00
JB		 864 enum ieee80211_band band;
865 struct ieee80211_channel *chan;
866 struct ieee80211_rate *rate;
867 int i;
2e161f78
JB		 868 const struct ieee80211_txrx_stypes *mgmt_stypes =
869 dev->wiphy.mgmt_stypes;
55682965 870
15e47304 871 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 872 if (!hdr)
873 return -1;
874
9360ffd1
DM		 875 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
876 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
877 nla_put_u32(msg, NL80211_ATTR_GENERATION,
878 cfg80211_rdev_list_generation) ||
879 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
880 dev->wiphy.retry_short) ||
881 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
882 dev->wiphy.retry_long) ||
883 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
884 dev->wiphy.frag_threshold) ||
885 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
886 dev->wiphy.rts_threshold) ||
887 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
888 dev->wiphy.coverage_class) ||
889 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
890 dev->wiphy.max_scan_ssids) ||
891 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
892 dev->wiphy.max_sched_scan_ssids) ||
893 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
894 dev->wiphy.max_scan_ie_len) ||
895 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
896 dev->wiphy.max_sched_scan_ie_len) ||
897 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
898 dev->wiphy.max_match_sets))
899 goto nla_put_failure;
900
901 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
902 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
903 goto nla_put_failure;
904 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
905 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
906 goto nla_put_failure;
907 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
908 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
909 goto nla_put_failure;
910 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
911 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
912 goto nla_put_failure;
913 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
914 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
915 goto nla_put_failure;
916 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
917 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
918 goto nla_put_failure;
919
920 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
921 sizeof(u32) * dev->wiphy.n_cipher_suites,
922 dev->wiphy.cipher_suites))
923 goto nla_put_failure;
924
925 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
926 dev->wiphy.max_num_pmkids))
927 goto nla_put_failure;
928
929 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
930 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
931 goto nla_put_failure;
932
933 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
934 dev->wiphy.available_antennas_tx) ||
935 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
936 dev->wiphy.available_antennas_rx))
937 goto nla_put_failure;
938
939 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
940 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
941 dev->wiphy.probe_resp_offload))
942 goto nla_put_failure;
87bbbe22 943
7f531e03
BR		 944 if ((dev->wiphy.available_antennas_tx ||
945 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 946 u32 tx_ant = 0, rx_ant = 0;
947 int res;
948 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
949 if (!res) {
9360ffd1
DM		 950 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
951 tx_ant) ||
952 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
953 rx_ant))
954 goto nla_put_failure;
afe0cbf8
BR		 955 }
956 }
957
7527a782
JB		 958 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
959 dev->wiphy.interface_modes))
f59ac048
LR		 960 goto nla_put_failure;
961
ee688b00
JB		 962 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
963 if (!nl_bands)
964 goto nla_put_failure;
965
966 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
967 if (!dev->wiphy.bands[band])
968 continue;
969
970 nl_band = nla_nest_start(msg, band);
971 if (!nl_band)
972 goto nla_put_failure;
973
d51626df 974 /* add HT info */
9360ffd1
DM		 975 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
976 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
977 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
978 &dev->wiphy.bands[band]->ht_cap.mcs) ||
979 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
980 dev->wiphy.bands[band]->ht_cap.cap) ||
981 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
982 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
983 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
984 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
985 goto nla_put_failure;
d51626df 986
bf0c111e
MP		 987 /* add VHT info */
988 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
989 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
990 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
991 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
992 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
993 dev->wiphy.bands[band]->vht_cap.cap)))
994 goto nla_put_failure;
995
ee688b00
JB		 996 /* add frequencies */
997 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
998 if (!nl_freqs)
999 goto nla_put_failure;
1000
1001 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1002 nl_freq = nla_nest_start(msg, i);
1003 if (!nl_freq)
1004 goto nla_put_failure;
1005
1006 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1007
1008 if (nl80211_msg_put_channel(msg, chan))
1009 goto nla_put_failure;
e2f367f2 1010
ee688b00
JB		 1011 nla_nest_end(msg, nl_freq);
1012 }
1013
1014 nla_nest_end(msg, nl_freqs);
1015
1016 /* add bitrates */
1017 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1018 if (!nl_rates)
1019 goto nla_put_failure;
1020
1021 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1022 nl_rate = nla_nest_start(msg, i);
1023 if (!nl_rate)
1024 goto nla_put_failure;
1025
1026 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1027 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1028 rate->bitrate))
1029 goto nla_put_failure;
1030 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1031 nla_put_flag(msg,
1032 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1033 goto nla_put_failure;
ee688b00
JB		 1034
1035 nla_nest_end(msg, nl_rate);
1036 }
1037
1038 nla_nest_end(msg, nl_rates);
1039
1040 nla_nest_end(msg, nl_band);
1041 }
1042 nla_nest_end(msg, nl_bands);
1043
8fdc621d
JB		 1044 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1045 if (!nl_cmds)
1046 goto nla_put_failure;
1047
1048 i = 0;
1049#define CMD(op, n) \
1050 do { \
1051 if (dev->ops->op) { \
1052 i++; \
9360ffd1
DM		 1053 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1054 goto nla_put_failure; \
8fdc621d
JB		 1055 } \
1056 } while (0)
1057
1058 CMD(add_virtual_intf, NEW_INTERFACE);
1059 CMD(change_virtual_intf, SET_INTERFACE);
1060 CMD(add_key, NEW_KEY);
8860020e 1061 CMD(start_ap, START_AP);
8fdc621d
JB		 1062 CMD(add_station, NEW_STATION);
1063 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1064 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1065 CMD(change_bss, SET_BSS);
636a5d36
JM		 1066 CMD(auth, AUTHENTICATE);
1067 CMD(assoc, ASSOCIATE);
1068 CMD(deauth, DEAUTHENTICATE);
1069 CMD(disassoc, DISASSOCIATE);
04a773ad 1070 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1071 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1072 CMD(set_pmksa, SET_PMKSA);
1073 CMD(del_pmksa, DEL_PMKSA);
1074 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1075 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1076 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1077 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1078 CMD(mgmt_tx, FRAME);
f7ca38df 1079 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1080 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1081 i++;
9360ffd1
DM		 1082 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1083 goto nla_put_failure;
463d0183 1084 }
e8c9bd5b 1085 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1086 dev->ops->join_mesh) {
aa430da4
JB		 1087 i++;
1088 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1089 goto nla_put_failure;
1090 }
e8347eba 1091 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1092 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1093 CMD(tdls_mgmt, TDLS_MGMT);
1094 CMD(tdls_oper, TDLS_OPER);
1095 }
807f8a8c
LC		 1096 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1097 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1098 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1099 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1100 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1101 i++;
9360ffd1
DM		 1102 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1103 goto nla_put_failure;
5e760230 1104 }
98104fde 1105 CMD(start_p2p_device, START_P2P_DEVICE);
8fdc621d 1106
4745fc09
KV		 1107#ifdef CONFIG_NL80211_TESTMODE
1108 CMD(testmode_cmd, TESTMODE);
1109#endif
1110
8fdc621d 1111#undef CMD
b23aa676 1112
6829c878 1113 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1114 i++;
9360ffd1
DM		 1115 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1116 goto nla_put_failure;
b23aa676
SO		 1117 }
1118
6829c878 1119 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1120 i++;
9360ffd1
DM		 1121 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1122 goto nla_put_failure;
b23aa676
SO		 1123 }
1124
8fdc621d
JB		 1125 nla_nest_end(msg, nl_cmds);
1126
7c4ef712 1127 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1128 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1129 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1130 dev->wiphy.max_remain_on_channel_duration))
1131 goto nla_put_failure;
a293911d 1132
9360ffd1
DM		 1133 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1134 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1135 goto nla_put_failure;
f7ca38df 1136
2e161f78
JB		 1137 if (mgmt_stypes) {
1138 u16 stypes;
1139 struct nlattr *nl_ftypes, *nl_ifs;
1140 enum nl80211_iftype ift;
1141
1142 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1143 if (!nl_ifs)
1144 goto nla_put_failure;
1145
1146 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1147 nl_ftypes = nla_nest_start(msg, ift);
1148 if (!nl_ftypes)
1149 goto nla_put_failure;
1150 i = 0;
1151 stypes = mgmt_stypes[ift].tx;
1152 while (stypes) {
9360ffd1
DM		 1153 if ((stypes & 1) &&
1154 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1155 (i << 4) | IEEE80211_FTYPE_MGMT))
1156 goto nla_put_failure;
2e161f78
JB		 1157 stypes >>= 1;
1158 i++;
1159 }
1160 nla_nest_end(msg, nl_ftypes);
1161 }
1162
74b70a4e
JB		 1163 nla_nest_end(msg, nl_ifs);
1164
2e161f78
JB		 1165 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1166 if (!nl_ifs)
1167 goto nla_put_failure;
1168
1169 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1170 nl_ftypes = nla_nest_start(msg, ift);
1171 if (!nl_ftypes)
1172 goto nla_put_failure;
1173 i = 0;
1174 stypes = mgmt_stypes[ift].rx;
1175 while (stypes) {
9360ffd1
DM		 1176 if ((stypes & 1) &&
1177 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1178 (i << 4) | IEEE80211_FTYPE_MGMT))
1179 goto nla_put_failure;
2e161f78
JB		 1180 stypes >>= 1;
1181 i++;
1182 }
1183 nla_nest_end(msg, nl_ftypes);
1184 }
1185 nla_nest_end(msg, nl_ifs);
1186 }
1187
dfb89c56 1188#ifdef CONFIG_PM
ff1b6e69
JB		 1189 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1190 struct nlattr *nl_wowlan;
1191
1192 nl_wowlan = nla_nest_start(msg,
1193 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1194 if (!nl_wowlan)
1195 goto nla_put_failure;
1196
9360ffd1
DM		 1197 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1198 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1199 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1200 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1201 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1202 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1203 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1204 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1205 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1206 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1207 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1208 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1209 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1210 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1211 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1212 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1213 goto nla_put_failure;
ff1b6e69
JB		 1214 if (dev->wiphy.wowlan.n_patterns) {
1215 struct nl80211_wowlan_pattern_support pat = {
1216 .max_patterns = dev->wiphy.wowlan.n_patterns,
1217 .min_pattern_len =
1218 dev->wiphy.wowlan.pattern_min_len,
1219 .max_pattern_len =
1220 dev->wiphy.wowlan.pattern_max_len,
1221 };
9360ffd1
DM		 1222 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1223 sizeof(pat), &pat))
1224 goto nla_put_failure;
ff1b6e69
JB		 1225 }
1226
1227 nla_nest_end(msg, nl_wowlan);
1228 }
dfb89c56 1229#endif
ff1b6e69 1230
7527a782
JB		 1231 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1232 dev->wiphy.software_iftypes))
1233 goto nla_put_failure;
1234
1235 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1236 goto nla_put_failure;
1237
9360ffd1
DM		 1238 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1239 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1240 dev->wiphy.ap_sme_capa))
1241 goto nla_put_failure;
562a7480 1242
9360ffd1
DM		 1243 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1244 dev->wiphy.features))
1245 goto nla_put_failure;
1f074bd8 1246
9360ffd1
DM		 1247 if (dev->wiphy.ht_capa_mod_mask &&
1248 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1249 sizeof(*dev->wiphy.ht_capa_mod_mask),
1250 dev->wiphy.ht_capa_mod_mask))
1251 goto nla_put_failure;
7e7c8926 1252
55682965
JB		 1253 return genlmsg_end(msg, hdr);
1254
1255 nla_put_failure:
bc3ed28c
TG		 1256 genlmsg_cancel(msg, hdr);
1257 return -EMSGSIZE;
55682965
JB		 1258}
1259
1260static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1261{
1262 int idx = 0;
1263 int start = cb->args[0];
1264 struct cfg80211_registered_device *dev;
1265
a1794390 1266 mutex_lock(&cfg80211_mutex);
79c97e97 1267 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1268 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1269 continue;
b4637271 1270 if (++idx <= start)
55682965 1271 continue;
15e47304 1272 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
55682965 1273 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1274 dev) < 0) {
1275 idx--;
55682965 1276 break;
b4637271 1277 }
55682965 1278 }
a1794390 1279 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1280
1281 cb->args[0] = idx;
1282
1283 return skb->len;
1284}
1285
1286static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1287{
1288 struct sk_buff *msg;
4c476991 1289 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1290
fd2120ca 1291 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1292 if (!msg)
4c476991 1293 return -ENOMEM;
55682965 1294
15e47304 1295 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1296 nlmsg_free(msg);
1297 return -ENOBUFS;
1298 }
55682965 1299
134e6375 1300 return genlmsg_reply(msg, info);
55682965
JB		 1301}
1302
31888487
JM		 1303static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1304 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1305 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1306 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1307 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1308 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1309};
1310
1311static int parse_txq_params(struct nlattr *tb[],
1312 struct ieee80211_txq_params *txq_params)
1313{
a3304b0a 1314 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1315 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1316 !tb[NL80211_TXQ_ATTR_AIFS])
1317 return -EINVAL;
1318
a3304b0a 1319 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1320 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1321 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1322 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1323 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1324
a3304b0a
JB		 1325 if (txq_params->ac >= NL80211_NUM_ACS)
1326 return -EINVAL;
1327
31888487
JM		 1328 return 0;
1329}
1330
f444de05
JB		 1331static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1332{
1333 /*
cc1d2806
JB		 1334 * You can only set the channel explicitly for WDS interfaces,
1335 * all others have their channel managed via their respective
1336 * "establish a connection" command (connect, join, ...)
1337 *
1338 * For AP/GO and mesh mode, the channel can be set with the
1339 * channel userspace API, but is only stored and passed to the
1340 * low-level driver when the AP starts or the mesh is joined.
1341 * This is for backward compatibility, userspace can also give
1342 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1343 *
1344 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1345 * whatever else is going on, so they have their own special
1346 * operation to set the monitor channel if possible.
f444de05
JB		 1347 */
1348 return !wdev ||
1349 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1350 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1351 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1352 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1353}
1354
cd6c6598
JB		 1355static bool nl80211_valid_channel_type(struct genl_info *info,
1356 enum nl80211_channel_type *channel_type)
1357{
1358 enum nl80211_channel_type tmp;
1359
1360 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1361 return false;
1362
1363 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1364 if (tmp != NL80211_CHAN_NO_HT &&
1365 tmp != NL80211_CHAN_HT20 &&
1366 tmp != NL80211_CHAN_HT40PLUS &&
1367 tmp != NL80211_CHAN_HT40MINUS)
1368 return false;
1369
1370 if (channel_type)
1371 *channel_type = tmp;
1372
1373 return true;
1374}
1375
f444de05
JB		 1376static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1377 struct wireless_dev *wdev,
1378 struct genl_info *info)
1379{
aa430da4 1380 struct ieee80211_channel *channel;
f444de05
JB		 1381 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1382 u32 freq;
1383 int result;
e8c9bd5b
JB		 1384 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1385
1386 if (wdev)
1387 iftype = wdev->iftype;
f444de05
JB		 1388
1389 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1390 return -EINVAL;
1391
1392 if (!nl80211_can_set_dev_channel(wdev))
1393 return -EOPNOTSUPP;
1394
cd6c6598
JB		 1395 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1396 !nl80211_valid_channel_type(info, &channel_type))
1397 return -EINVAL;
f444de05
JB		 1398
1399 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1400
1401 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1402 switch (iftype) {
aa430da4
JB		 1403 case NL80211_IFTYPE_AP:
1404 case NL80211_IFTYPE_P2P_GO:
1405 if (wdev->beacon_interval) {
1406 result = -EBUSY;
1407 break;
1408 }
1409 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1410 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1411 channel,
1412 channel_type)) {
1413 result = -EINVAL;
1414 break;
1415 }
1416 wdev->preset_chan = channel;
1417 wdev->preset_chantype = channel_type;
1418 result = 0;
1419 break;
cc1d2806
JB		 1420 case NL80211_IFTYPE_MESH_POINT:
1421 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1422 break;
e8c9bd5b
JB		 1423 case NL80211_IFTYPE_MONITOR:
1424 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1425 break;
aa430da4 1426 default:
e8c9bd5b 1427 result = -EINVAL;
f444de05
JB		 1428 }
1429 mutex_unlock(&rdev->devlist_mtx);
1430
1431 return result;
1432}
1433
1434static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1435{
4c476991
JB		 1436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1437 struct net_device *netdev = info->user_ptr[1];
f444de05 1438
4c476991 1439 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1440}
1441
e8347eba
BJ		 1442static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1443{
43b19952
JB		 1444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1445 struct net_device *dev = info->user_ptr[1];
1446 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1447 const u8 *bssid;
e8347eba
BJ		 1448
1449 if (!info->attrs[NL80211_ATTR_MAC])
1450 return -EINVAL;
1451
43b19952
JB		 1452 if (netif_running(dev))
1453 return -EBUSY;
e8347eba 1454
43b19952
JB		 1455 if (!rdev->ops->set_wds_peer)
1456 return -EOPNOTSUPP;
e8347eba 1457
43b19952
JB		 1458 if (wdev->iftype != NL80211_IFTYPE_WDS)
1459 return -EOPNOTSUPP;
e8347eba
BJ		 1460
1461 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1462 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1463}
1464
1465
55682965
JB		 1466static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1467{
1468 struct cfg80211_registered_device *rdev;
f444de05
JB		 1469 struct net_device *netdev = NULL;
1470 struct wireless_dev *wdev;
a1e567c8 1471 int result = 0, rem_txq_params = 0;
31888487 1472 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1473 u32 changed;
1474 u8 retry_short = 0, retry_long = 0;
1475 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1476 u8 coverage_class = 0;
55682965 1477
f444de05
JB		 1478 /*
1479 * Try to find the wiphy and netdev. Normally this
1480 * function shouldn't need the netdev, but this is
1481 * done for backward compatibility -- previously
1482 * setting the channel was done per wiphy, but now
1483 * it is per netdev. Previous userland like hostapd
1484 * also passed a netdev to set_wiphy, so that it is
1485 * possible to let that go to the right netdev!
1486 */
4bbf4d56
JB		 1487 mutex_lock(&cfg80211_mutex);
1488
f444de05
JB		 1489 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1490 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1491
1492 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1493 if (netdev && netdev->ieee80211_ptr) {
1494 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1495 mutex_lock(&rdev->mtx);
1496 } else
1497 netdev = NULL;
4bbf4d56
JB		 1498 }
1499
f444de05 1500 if (!netdev) {
878d9ec7
JB		 1501 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1502 info->attrs);
f444de05
JB		 1503 if (IS_ERR(rdev)) {
1504 mutex_unlock(&cfg80211_mutex);
4c476991 1505 return PTR_ERR(rdev);
f444de05
JB		 1506 }
1507 wdev = NULL;
1508 netdev = NULL;
1509 result = 0;
1510
1511 mutex_lock(&rdev->mtx);
cc1d2806 1512 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
f444de05
JB		 1513 wdev = netdev->ieee80211_ptr;
1514 else
1515 wdev = NULL;
1516
1517 /*
1518 * end workaround code, by now the rdev is available
1519 * and locked, and wdev may or may not be NULL.
1520 */
4bbf4d56
JB		 1521
1522 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1523 result = cfg80211_dev_rename(
1524 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1525
1526 mutex_unlock(&cfg80211_mutex);
1527
1528 if (result)
1529 goto bad_res;
31888487
JM		 1530
1531 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1532 struct ieee80211_txq_params txq_params;
1533 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1534
1535 if (!rdev->ops->set_txq_params) {
1536 result = -EOPNOTSUPP;
1537 goto bad_res;
1538 }
1539
f70f01c2
EP		 1540 if (!netdev) {
1541 result = -EINVAL;
1542 goto bad_res;
1543 }
1544
133a3ff2
JB		 1545 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1546 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1547 result = -EINVAL;
1548 goto bad_res;
1549 }
1550
2b5f8b0b
JB		 1551 if (!netif_running(netdev)) {
1552 result = -ENETDOWN;
1553 goto bad_res;
1554 }
1555
31888487
JM		 1556 nla_for_each_nested(nl_txq_params,
1557 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1558 rem_txq_params) {
1559 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1560 nla_data(nl_txq_params),
1561 nla_len(nl_txq_params),
1562 txq_params_policy);
1563 result = parse_txq_params(tb, &txq_params);
1564 if (result)
1565 goto bad_res;
1566
1567 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1568 netdev,
31888487
JM		 1569 &txq_params);
1570 if (result)
1571 goto bad_res;
1572 }
1573 }
55682965 1574
72bdcf34 1575 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1576 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1577 if (result)
1578 goto bad_res;
1579 }
1580
98d2ff8b
JO		 1581 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1582 enum nl80211_tx_power_setting type;
1583 int idx, mbm = 0;
1584
1585 if (!rdev->ops->set_tx_power) {
60ea385f 1586 result = -EOPNOTSUPP;
98d2ff8b
JO		 1587 goto bad_res;
1588 }
1589
1590 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1591 type = nla_get_u32(info->attrs[idx]);
1592
1593 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1594 (type != NL80211_TX_POWER_AUTOMATIC)) {
1595 result = -EINVAL;
1596 goto bad_res;
1597 }
1598
1599 if (type != NL80211_TX_POWER_AUTOMATIC) {
1600 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1601 mbm = nla_get_u32(info->attrs[idx]);
1602 }
1603
1604 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1605 if (result)
1606 goto bad_res;
1607 }
1608
afe0cbf8
BR		 1609 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1610 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1611 u32 tx_ant, rx_ant;
7f531e03
BR		 1612 if ((!rdev->wiphy.available_antennas_tx &&
1613 !rdev->wiphy.available_antennas_rx) ||
1614 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1615 result = -EOPNOTSUPP;
1616 goto bad_res;
1617 }
1618
1619 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1620 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1621
a7ffac95 1622 /* reject antenna configurations which don't match the
7f531e03
BR		 1623 * available antenna masks, except for the "all" mask */
1624 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1625 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1626 result = -EINVAL;
1627 goto bad_res;
1628 }
1629
7f531e03
BR		 1630 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1631 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1632
afe0cbf8
BR		 1633 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1634 if (result)
1635 goto bad_res;
1636 }
1637
b9a5f8ca
JM		 1638 changed = 0;
1639
1640 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1641 retry_short = nla_get_u8(
1642 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1643 if (retry_short == 0) {
1644 result = -EINVAL;
1645 goto bad_res;
1646 }
1647 changed |= WIPHY_PARAM_RETRY_SHORT;
1648 }
1649
1650 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1651 retry_long = nla_get_u8(
1652 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1653 if (retry_long == 0) {
1654 result = -EINVAL;
1655 goto bad_res;
1656 }
1657 changed |= WIPHY_PARAM_RETRY_LONG;
1658 }
1659
1660 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1661 frag_threshold = nla_get_u32(
1662 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1663 if (frag_threshold < 256) {
1664 result = -EINVAL;
1665 goto bad_res;
1666 }
1667 if (frag_threshold != (u32) -1) {
1668 /*
1669 * Fragments (apart from the last one) are required to
1670 * have even length. Make the fragmentation code
1671 * simpler by stripping LSB should someone try to use
1672 * odd threshold value.
1673 */
1674 frag_threshold &= ~0x1;
1675 }
1676 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1677 }
1678
1679 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1680 rts_threshold = nla_get_u32(
1681 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1682 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1683 }
1684
81077e82
LT		 1685 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1686 coverage_class = nla_get_u8(
1687 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1688 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1689 }
1690
b9a5f8ca
JM		 1691 if (changed) {
1692 u8 old_retry_short, old_retry_long;
1693 u32 old_frag_threshold, old_rts_threshold;
81077e82 1694 u8 old_coverage_class;
b9a5f8ca
JM		 1695
1696 if (!rdev->ops->set_wiphy_params) {
1697 result = -EOPNOTSUPP;
1698 goto bad_res;
1699 }
1700
1701 old_retry_short = rdev->wiphy.retry_short;
1702 old_retry_long = rdev->wiphy.retry_long;
1703 old_frag_threshold = rdev->wiphy.frag_threshold;
1704 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1705 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1706
1707 if (changed & WIPHY_PARAM_RETRY_SHORT)
1708 rdev->wiphy.retry_short = retry_short;
1709 if (changed & WIPHY_PARAM_RETRY_LONG)
1710 rdev->wiphy.retry_long = retry_long;
1711 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1712 rdev->wiphy.frag_threshold = frag_threshold;
1713 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1714 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1715 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1716 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1717
1718 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1719 if (result) {
1720 rdev->wiphy.retry_short = old_retry_short;
1721 rdev->wiphy.retry_long = old_retry_long;
1722 rdev->wiphy.frag_threshold = old_frag_threshold;
1723 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1724 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1725 }
1726 }
72bdcf34 1727
306d6112 1728 bad_res:
4bbf4d56 1729 mutex_unlock(&rdev->mtx);
f444de05
JB		 1730 if (netdev)
1731 dev_put(netdev);
55682965
JB		 1732 return result;
1733}
1734
71bbc994
JB		 1735static inline u64 wdev_id(struct wireless_dev *wdev)
1736{
1737 return (u64)wdev->identifier |
1738 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1739}
55682965 1740
15e47304 1741static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1742 struct cfg80211_registered_device *rdev,
72fb2abc 1743 struct wireless_dev *wdev)
55682965 1744{
72fb2abc 1745 struct net_device *dev = wdev->netdev;
55682965
JB		 1746 void *hdr;
1747
15e47304 1748 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1749 if (!hdr)
1750 return -1;
1751
72fb2abc
JB		 1752 if (dev &&
1753 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1754 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1755 goto nla_put_failure;
1756
1757 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1758 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1759 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1760 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1761 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1762 rdev->devlist_generation ^
1763 (cfg80211_rdev_list_generation << 2)))
1764 goto nla_put_failure;
f5ea9120 1765
5b7ccaf3
JB		 1766 if (rdev->ops->get_channel) {
1767 struct ieee80211_channel *chan;
1768 enum nl80211_channel_type channel_type;
1769
1770 chan = rdev->ops->get_channel(&rdev->wiphy, wdev,
1771 &channel_type);
1772 if (chan &&
1773 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1774 chan->center_freq) ||
1775 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1776 channel_type)))
59ef43e6 1777 goto nla_put_failure;
d91df0e3
PF		 1778 }
1779
55682965
JB		 1780 return genlmsg_end(msg, hdr);
1781
1782 nla_put_failure:
bc3ed28c
TG		 1783 genlmsg_cancel(msg, hdr);
1784 return -EMSGSIZE;
55682965
JB		 1785}
1786
1787static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1788{
1789 int wp_idx = 0;
1790 int if_idx = 0;
1791 int wp_start = cb->args[0];
1792 int if_start = cb->args[1];
f5ea9120 1793 struct cfg80211_registered_device *rdev;
55682965
JB		 1794 struct wireless_dev *wdev;
1795
a1794390 1796 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1797 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1798 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1799 continue;
bba95fef
JB		 1800 if (wp_idx < wp_start) {
1801 wp_idx++;
55682965 1802 continue;
bba95fef 1803 }
55682965
JB		 1804 if_idx = 0;
1805
f5ea9120 1806 mutex_lock(&rdev->devlist_mtx);
89a54e48 1807 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1808 if (if_idx < if_start) {
1809 if_idx++;
55682965 1810 continue;
bba95fef 1811 }
15e47304 1812 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1813 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1814 rdev, wdev) < 0) {
f5ea9120 1815 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1816 goto out;
1817 }
1818 if_idx++;
55682965 1819 }
f5ea9120 1820 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1821
1822 wp_idx++;
55682965 1823 }
bba95fef 1824 out:
a1794390 1825 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1826
1827 cb->args[0] = wp_idx;
1828 cb->args[1] = if_idx;
1829
1830 return skb->len;
1831}
1832
1833static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1834{
1835 struct sk_buff *msg;
4c476991 1836 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1837 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1838
fd2120ca 1839 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1840 if (!msg)
4c476991 1841 return -ENOMEM;
55682965 1842
15e47304 1843 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1844 dev, wdev) < 0) {
4c476991
JB		 1845 nlmsg_free(msg);
1846 return -ENOBUFS;
1847 }
55682965 1848
134e6375 1849 return genlmsg_reply(msg, info);
55682965
JB		 1850}
1851
66f7ac50
MW		 1852static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1853 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1854 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1855 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1856 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1857 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1858};
1859
1860static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1861{
1862 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1863 int flag;
1864
1865 *mntrflags = 0;
1866
1867 if (!nla)
1868 return -EINVAL;
1869
1870 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1871 nla, mntr_flags_policy))
1872 return -EINVAL;
1873
1874 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1875 if (flags[flag])
1876 *mntrflags |= (1<<flag);
1877
1878 return 0;
1879}
1880
9bc383de 1881static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1882 struct net_device *netdev, u8 use_4addr,
1883 enum nl80211_iftype iftype)
9bc383de 1884{
ad4bb6f8 1885 if (!use_4addr) {
f350a0a8 1886 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1887 return -EBUSY;
9bc383de 1888 return 0;
ad4bb6f8 1889 }
9bc383de
JB		 1890
1891 switch (iftype) {
1892 case NL80211_IFTYPE_AP_VLAN:
1893 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1894 return 0;
1895 break;
1896 case NL80211_IFTYPE_STATION:
1897 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1898 return 0;
1899 break;
1900 default:
1901 break;
1902 }
1903
1904 return -EOPNOTSUPP;
1905}
1906
55682965
JB		 1907static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1908{
4c476991 1909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1910 struct vif_params params;
e36d56b6 1911 int err;
04a773ad 1912 enum nl80211_iftype otype, ntype;
4c476991 1913 struct net_device *dev = info->user_ptr[1];
92ffe055 1914 u32 _flags, *flags = NULL;
ac7f9cfa 1915 bool change = false;
55682965 1916
2ec600d6
LCC		 1917 memset(&params, 0, sizeof(params));
1918
04a773ad 1919 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1920
723b038d 1921 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1922 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1923 if (otype != ntype)
ac7f9cfa 1924 change = true;
4c476991
JB		 1925 if (ntype > NL80211_IFTYPE_MAX)
1926 return -EINVAL;
723b038d
JB		 1927 }
1928
92ffe055 1929 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1930 struct wireless_dev *wdev = dev->ieee80211_ptr;
1931
4c476991
JB		 1932 if (ntype != NL80211_IFTYPE_MESH_POINT)
1933 return -EINVAL;
29cbe68c
JB		 1934 if (netif_running(dev))
1935 return -EBUSY;
1936
1937 wdev_lock(wdev);
1938 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1939 IEEE80211_MAX_MESH_ID_LEN);
1940 wdev->mesh_id_up_len =
1941 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1942 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1943 wdev->mesh_id_up_len);
1944 wdev_unlock(wdev);
2ec600d6
LCC		 1945 }
1946
8b787643
FF		 1947 if (info->attrs[NL80211_ATTR_4ADDR]) {
1948 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1949 change = true;
ad4bb6f8 1950 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1951 if (err)
4c476991 1952 return err;
8b787643
FF		 1953 } else {
1954 params.use_4addr = -1;
1955 }
1956
92ffe055 1957 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1958 if (ntype != NL80211_IFTYPE_MONITOR)
1959 return -EINVAL;
92ffe055
JB		 1960 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1961 &_flags);
ac7f9cfa 1962 if (err)
4c476991 1963 return err;
ac7f9cfa
JB		 1964
1965 flags = &_flags;
1966 change = true;
92ffe055 1967 }
3b85875a 1968
ac7f9cfa 1969 if (change)
3d54d255 1970 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1971 else
1972 err = 0;
60719ffd 1973
9bc383de
JB		 1974 if (!err && params.use_4addr != -1)
1975 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1976
55682965
JB		 1977 return err;
1978}
1979
1980static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1981{
4c476991 1982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1983 struct vif_params params;
84efbb84 1984 struct wireless_dev *wdev;
1c90f9d4 1985 struct sk_buff *msg;
55682965
JB		 1986 int err;
1987 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1988 u32 flags;
55682965 1989
2ec600d6
LCC		 1990 memset(&params, 0, sizeof(params));
1991
55682965
JB		 1992 if (!info->attrs[NL80211_ATTR_IFNAME])
1993 return -EINVAL;
1994
1995 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1996 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1997 if (type > NL80211_IFTYPE_MAX)
1998 return -EINVAL;
1999 }
2000
79c97e97 2001 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2002 !(rdev->wiphy.interface_modes & (1 << type)))
2003 return -EOPNOTSUPP;
55682965 2004
9bc383de 2005 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2006 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2007 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2008 if (err)
4c476991 2009 return err;
9bc383de 2010 }
8b787643 2011
1c90f9d4
JB		 2012 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2013 if (!msg)
2014 return -ENOMEM;
2015
66f7ac50
MW		 2016 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2017 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2018 &flags);
84efbb84 2019 wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 2020 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 2021 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2022 if (IS_ERR(wdev)) {
2023 nlmsg_free(msg);
84efbb84 2024 return PTR_ERR(wdev);
1c90f9d4 2025 }
2ec600d6 2026
98104fde
JB		 2027 switch (type) {
2028 case NL80211_IFTYPE_MESH_POINT:
2029 if (!info->attrs[NL80211_ATTR_MESH_ID])
2030 break;
29cbe68c
JB		 2031 wdev_lock(wdev);
2032 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2033 IEEE80211_MAX_MESH_ID_LEN);
2034 wdev->mesh_id_up_len =
2035 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2036 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2037 wdev->mesh_id_up_len);
2038 wdev_unlock(wdev);
98104fde
JB		 2039 break;
2040 case NL80211_IFTYPE_P2P_DEVICE:
2041 /*
2042 * P2P Device doesn't have a netdev, so doesn't go
2043 * through the netdev notifier and must be added here
2044 */
2045 mutex_init(&wdev->mtx);
2046 INIT_LIST_HEAD(&wdev->event_list);
2047 spin_lock_init(&wdev->event_lock);
2048 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2049 spin_lock_init(&wdev->mgmt_registrations_lock);
2050
2051 mutex_lock(&rdev->devlist_mtx);
2052 wdev->identifier = ++rdev->wdev_id;
2053 list_add_rcu(&wdev->list, &rdev->wdev_list);
2054 rdev->devlist_generation++;
2055 mutex_unlock(&rdev->devlist_mtx);
2056 break;
2057 default:
2058 break;
29cbe68c
JB		 2059 }
2060
15e47304 2061 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2062 rdev, wdev) < 0) {
2063 nlmsg_free(msg);
2064 return -ENOBUFS;
2065 }
2066
2067 return genlmsg_reply(msg, info);
55682965
JB		 2068}
2069
2070static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2071{
4c476991 2072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2073 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2074
4c476991
JB		 2075 if (!rdev->ops->del_virtual_intf)
2076 return -EOPNOTSUPP;
55682965 2077
84efbb84
JB		 2078 /*
2079 * If we remove a wireless device without a netdev then clear
2080 * user_ptr[1] so that nl80211_post_doit won't dereference it
2081 * to check if it needs to do dev_put(). Otherwise it crashes
2082 * since the wdev has been freed, unlike with a netdev where
2083 * we need the dev_put() for the netdev to really be freed.
2084 */
2085 if (!wdev->netdev)
2086 info->user_ptr[1] = NULL;
2087
2088 return rdev->ops->del_virtual_intf(&rdev->wiphy, wdev);
55682965
JB		 2089}
2090
1d9d9213
SW		 2091static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2092{
2093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2094 struct net_device *dev = info->user_ptr[1];
2095 u16 noack_map;
2096
2097 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2098 return -EINVAL;
2099
2100 if (!rdev->ops->set_noack_map)
2101 return -EOPNOTSUPP;
2102
2103 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2104
2105 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2106}
2107
41ade00f
JB		 2108struct get_key_cookie {
2109 struct sk_buff *msg;
2110 int error;
b9454e83 2111 int idx;
41ade00f
JB		 2112};
2113
2114static void get_key_callback(void *c, struct key_params *params)
2115{
b9454e83 2116 struct nlattr *key;
41ade00f
JB		 2117 struct get_key_cookie *cookie = c;
2118
9360ffd1
DM		 2119 if ((params->key &&
2120 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2121 params->key_len, params->key)) ||
2122 (params->seq &&
2123 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2124 params->seq_len, params->seq)) ||
2125 (params->cipher &&
2126 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2127 params->cipher)))
2128 goto nla_put_failure;
41ade00f 2129
b9454e83
JB		 2130 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2131 if (!key)
2132 goto nla_put_failure;
2133
9360ffd1
DM		 2134 if ((params->key &&
2135 nla_put(cookie->msg, NL80211_KEY_DATA,
2136 params->key_len, params->key)) ||
2137 (params->seq &&
2138 nla_put(cookie->msg, NL80211_KEY_SEQ,
2139 params->seq_len, params->seq)) ||
2140 (params->cipher &&
2141 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2142 params->cipher)))
2143 goto nla_put_failure;
b9454e83 2144
9360ffd1
DM		 2145 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2146 goto nla_put_failure;
b9454e83
JB		 2147
2148 nla_nest_end(cookie->msg, key);
2149
41ade00f
JB		 2150 return;
2151 nla_put_failure:
2152 cookie->error = 1;
2153}
2154
2155static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2156{
4c476991 2157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2158 int err;
4c476991 2159 struct net_device *dev = info->user_ptr[1];
41ade00f 2160 u8 key_idx = 0;
e31b8213
JB		 2161 const u8 *mac_addr = NULL;
2162 bool pairwise;
41ade00f
JB		 2163 struct get_key_cookie cookie = {
2164 .error = 0,
2165 };
2166 void *hdr;
2167 struct sk_buff *msg;
2168
2169 if (info->attrs[NL80211_ATTR_KEY_IDX])
2170 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2171
3cfcf6ac 2172 if (key_idx > 5)
41ade00f
JB		 2173 return -EINVAL;
2174
2175 if (info->attrs[NL80211_ATTR_MAC])
2176 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2177
e31b8213
JB		 2178 pairwise = !!mac_addr;
2179 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2180 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2181 if (kt >= NUM_NL80211_KEYTYPES)
2182 return -EINVAL;
2183 if (kt != NL80211_KEYTYPE_GROUP &&
2184 kt != NL80211_KEYTYPE_PAIRWISE)
2185 return -EINVAL;
2186 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2187 }
2188
4c476991
JB		 2189 if (!rdev->ops->get_key)
2190 return -EOPNOTSUPP;
41ade00f 2191
fd2120ca 2192 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2193 if (!msg)
2194 return -ENOMEM;
41ade00f 2195
15e47304 2196 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2197 NL80211_CMD_NEW_KEY);
4c476991
JB		 2198 if (IS_ERR(hdr))
2199 return PTR_ERR(hdr);
41ade00f
JB		 2200
2201 cookie.msg = msg;
b9454e83 2202 cookie.idx = key_idx;
41ade00f 2203
9360ffd1
DM		 2204 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2205 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2206 goto nla_put_failure;
2207 if (mac_addr &&
2208 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2209 goto nla_put_failure;
41ade00f 2210
e31b8213
JB		 2211 if (pairwise && mac_addr &&
2212 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2213 return -ENOENT;
2214
2215 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2216 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 2217
2218 if (err)
6c95e2a2 2219 goto free_msg;
41ade00f
JB		 2220
2221 if (cookie.error)
2222 goto nla_put_failure;
2223
2224 genlmsg_end(msg, hdr);
4c476991 2225 return genlmsg_reply(msg, info);
41ade00f
JB		 2226
2227 nla_put_failure:
2228 err = -ENOBUFS;
6c95e2a2 2229 free_msg:
41ade00f 2230 nlmsg_free(msg);
41ade00f
JB		 2231 return err;
2232}
2233
2234static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2235{
4c476991 2236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2237 struct key_parse key;
41ade00f 2238 int err;
4c476991 2239 struct net_device *dev = info->user_ptr[1];
41ade00f 2240
b9454e83
JB		 2241 err = nl80211_parse_key(info, &key);
2242 if (err)
2243 return err;
41ade00f 2244
b9454e83 2245 if (key.idx < 0)
41ade00f
JB		 2246 return -EINVAL;
2247
b9454e83
JB		 2248 /* only support setting default key */
2249 if (!key.def && !key.defmgmt)
41ade00f
JB		 2250 return -EINVAL;
2251
dbd2fd65 2252 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2253
dbd2fd65
JB		 2254 if (key.def) {
2255 if (!rdev->ops->set_default_key) {
2256 err = -EOPNOTSUPP;
2257 goto out;
2258 }
41ade00f 2259
dbd2fd65
JB		 2260 err = nl80211_key_allowed(dev->ieee80211_ptr);
2261 if (err)
2262 goto out;
2263
dbd2fd65
JB		 2264 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2265 key.def_uni, key.def_multi);
2266
2267 if (err)
2268 goto out;
fffd0934 2269
3d23e349 2270#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2271 dev->ieee80211_ptr->wext.default_key = key.idx;
2272#endif
2273 } else {
2274 if (key.def_uni || !key.def_multi) {
2275 err = -EINVAL;
2276 goto out;
2277 }
2278
2279 if (!rdev->ops->set_default_mgmt_key) {
2280 err = -EOPNOTSUPP;
2281 goto out;
2282 }
2283
2284 err = nl80211_key_allowed(dev->ieee80211_ptr);
2285 if (err)
2286 goto out;
2287
2288 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2289 dev, key.idx);
2290 if (err)
2291 goto out;
2292
2293#ifdef CONFIG_CFG80211_WEXT
2294 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2295#endif
dbd2fd65
JB		 2296 }
2297
2298 out:
fffd0934 2299 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2300
41ade00f
JB		 2301 return err;
2302}
2303
2304static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2305{
4c476991 2306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2307 int err;
4c476991 2308 struct net_device *dev = info->user_ptr[1];
b9454e83 2309 struct key_parse key;
e31b8213 2310 const u8 *mac_addr = NULL;
41ade00f 2311
b9454e83
JB		 2312 err = nl80211_parse_key(info, &key);
2313 if (err)
2314 return err;
41ade00f 2315
b9454e83 2316 if (!key.p.key)
41ade00f
JB		 2317 return -EINVAL;
2318
41ade00f
JB		 2319 if (info->attrs[NL80211_ATTR_MAC])
2320 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2321
e31b8213
JB		 2322 if (key.type == -1) {
2323 if (mac_addr)
2324 key.type = NL80211_KEYTYPE_PAIRWISE;
2325 else
2326 key.type = NL80211_KEYTYPE_GROUP;
2327 }
2328
2329 /* for now */
2330 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2331 key.type != NL80211_KEYTYPE_GROUP)
2332 return -EINVAL;
2333
4c476991
JB		 2334 if (!rdev->ops->add_key)
2335 return -EOPNOTSUPP;
25e47c18 2336
e31b8213
JB		 2337 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2338 key.type == NL80211_KEYTYPE_PAIRWISE,
2339 mac_addr))
4c476991 2340 return -EINVAL;
41ade00f 2341
fffd0934
JB		 2342 wdev_lock(dev->ieee80211_ptr);
2343 err = nl80211_key_allowed(dev->ieee80211_ptr);
2344 if (!err)
2345 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2346 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2347 mac_addr, &key.p);
2348 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2349
41ade00f
JB		 2350 return err;
2351}
2352
2353static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2354{
4c476991 2355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2356 int err;
4c476991 2357 struct net_device *dev = info->user_ptr[1];
41ade00f 2358 u8 *mac_addr = NULL;
b9454e83 2359 struct key_parse key;
41ade00f 2360
b9454e83
JB		 2361 err = nl80211_parse_key(info, &key);
2362 if (err)
2363 return err;
41ade00f
JB		 2364
2365 if (info->attrs[NL80211_ATTR_MAC])
2366 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2367
e31b8213
JB		 2368 if (key.type == -1) {
2369 if (mac_addr)
2370 key.type = NL80211_KEYTYPE_PAIRWISE;
2371 else
2372 key.type = NL80211_KEYTYPE_GROUP;
2373 }
2374
2375 /* for now */
2376 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2377 key.type != NL80211_KEYTYPE_GROUP)
2378 return -EINVAL;
2379
4c476991
JB		 2380 if (!rdev->ops->del_key)
2381 return -EOPNOTSUPP;
41ade00f 2382
fffd0934
JB		 2383 wdev_lock(dev->ieee80211_ptr);
2384 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2385
2386 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2387 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2388 err = -ENOENT;
2389
fffd0934 2390 if (!err)
e31b8213
JB		 2391 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2392 key.type == NL80211_KEYTYPE_PAIRWISE,
2393 mac_addr);
41ade00f 2394
3d23e349 2395#ifdef CONFIG_CFG80211_WEXT
08645126 2396 if (!err) {
b9454e83 2397 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2398 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2399 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2400 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2401 }
2402#endif
fffd0934 2403 wdev_unlock(dev->ieee80211_ptr);
08645126 2404
41ade00f
JB		 2405 return err;
2406}
2407
8860020e
JB		 2408static int nl80211_parse_beacon(struct genl_info *info,
2409 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2410{
8860020e 2411 bool haveinfo = false;
ed1b6cc7 2412
9946ecfb
JM		 2413 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2414 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2415 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2416 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2417 return -EINVAL;
2418
8860020e 2419 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2420
ed1b6cc7 2421 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2422 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2423 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2424 if (!bcn->head_len)
2425 return -EINVAL;
2426 haveinfo = true;
ed1b6cc7
JB		 2427 }
2428
2429 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2430 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2431 bcn->tail_len =
ed1b6cc7 2432 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2433 haveinfo = true;
ed1b6cc7
JB		 2434 }
2435
4c476991
JB		 2436 if (!haveinfo)
2437 return -EINVAL;
3b85875a 2438
9946ecfb 2439 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2440 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2441 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2442 }
2443
2444 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2445 bcn->proberesp_ies =
9946ecfb 2446 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2447 bcn->proberesp_ies_len =
9946ecfb
JM		 2448 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2449 }
2450
2451 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2452 bcn->assocresp_ies =
9946ecfb 2453 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2454 bcn->assocresp_ies_len =
9946ecfb
JM		 2455 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2456 }
2457
00f740e1 2458 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2459 bcn->probe_resp =
00f740e1 2460 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2461 bcn->probe_resp_len =
00f740e1
AN		 2462 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2463 }
2464
8860020e
JB		 2465 return 0;
2466}
2467
46c1dd0c
FF		 2468static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2469 struct cfg80211_ap_settings *params)
2470{
2471 struct wireless_dev *wdev;
2472 bool ret = false;
2473
2474 mutex_lock(&rdev->devlist_mtx);
2475
89a54e48 2476 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2477 if (wdev->iftype != NL80211_IFTYPE_AP &&
2478 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2479 continue;
2480
2481 if (!wdev->preset_chan)
2482 continue;
2483
2484 params->channel = wdev->preset_chan;
2485 params->channel_type = wdev->preset_chantype;
2486 ret = true;
2487 break;
2488 }
2489
2490 mutex_unlock(&rdev->devlist_mtx);
2491
2492 return ret;
2493}
2494
e39e5b5e
JM		 2495static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2496 enum nl80211_auth_type auth_type,
2497 enum nl80211_commands cmd)
2498{
2499 if (auth_type > NL80211_AUTHTYPE_MAX)
2500 return false;
2501
2502 switch (cmd) {
2503 case NL80211_CMD_AUTHENTICATE:
2504 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2505 auth_type == NL80211_AUTHTYPE_SAE)
2506 return false;
2507 return true;
2508 case NL80211_CMD_CONNECT:
2509 case NL80211_CMD_START_AP:
2510 /* SAE not supported yet */
2511 if (auth_type == NL80211_AUTHTYPE_SAE)
2512 return false;
2513 return true;
2514 default:
2515 return false;
2516 }
2517}
2518
8860020e
JB		 2519static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2520{
2521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2522 struct net_device *dev = info->user_ptr[1];
2523 struct wireless_dev *wdev = dev->ieee80211_ptr;
2524 struct cfg80211_ap_settings params;
2525 int err;
2526
2527 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2528 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2529 return -EOPNOTSUPP;
2530
2531 if (!rdev->ops->start_ap)
2532 return -EOPNOTSUPP;
2533
2534 if (wdev->beacon_interval)
2535 return -EALREADY;
2536
2537 memset(&params, 0, sizeof(params));
2538
2539 /* these are required for START_AP */
2540 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2541 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2542 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2543 return -EINVAL;
2544
2545 err = nl80211_parse_beacon(info, &params.beacon);
2546 if (err)
2547 return err;
2548
2549 params.beacon_interval =
2550 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2551 params.dtim_period =
2552 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2553
2554 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2555 if (err)
2556 return err;
2557
2558 /*
2559 * In theory, some of these attributes should be required here
2560 * but since they were not used when the command was originally
2561 * added, keep them optional for old user space programs to let
2562 * them continue to work with drivers that do not need the
2563 * additional information -- drivers must check!
2564 */
2565 if (info->attrs[NL80211_ATTR_SSID]) {
2566 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2567 params.ssid_len =
2568 nla_len(info->attrs[NL80211_ATTR_SSID]);
2569 if (params.ssid_len == 0 ||
2570 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2571 return -EINVAL;
2572 }
2573
2574 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2575 params.hidden_ssid = nla_get_u32(
2576 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2577 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2578 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2579 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2580 return -EINVAL;
2581 }
2582
2583 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2584
2585 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2586 params.auth_type = nla_get_u32(
2587 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2588 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2589 NL80211_CMD_START_AP))
8860020e
JB		 2590 return -EINVAL;
2591 } else
2592 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2593
2594 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2595 NL80211_MAX_NR_CIPHER_SUITES);
2596 if (err)
2597 return err;
2598
1b658f11
VT		 2599 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2600 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2601 return -EOPNOTSUPP;
2602 params.inactivity_timeout = nla_get_u16(
2603 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2604 }
2605
aa430da4
JB		 2606 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2607 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2608
2609 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2610 !nl80211_valid_channel_type(info, &channel_type))
2611 return -EINVAL;
2612
2613 params.channel = rdev_freq_to_chan(rdev,
2614 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2615 channel_type);
2616 if (!params.channel)
2617 return -EINVAL;
2618 params.channel_type = channel_type;
2619 } else if (wdev->preset_chan) {
2620 params.channel = wdev->preset_chan;
2621 params.channel_type = wdev->preset_chantype;
46c1dd0c 2622 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2623 return -EINVAL;
2624
2625 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2626 params.channel_type))
2627 return -EINVAL;
2628
e4e32459
MK		 2629 mutex_lock(&rdev->devlist_mtx);
2630 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2631 CHAN_MODE_SHARED);
2632 mutex_unlock(&rdev->devlist_mtx);
2633
2634 if (err)
2635 return err;
2636
8860020e 2637 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
46c1dd0c
FF		 2638 if (!err) {
2639 wdev->preset_chan = params.channel;
2640 wdev->preset_chantype = params.channel_type;
8860020e 2641 wdev->beacon_interval = params.beacon_interval;
f4489ebe 2642 wdev->channel = params.channel;
46c1dd0c 2643 }
56d1893d 2644 return err;
ed1b6cc7
JB		 2645}
2646
8860020e
JB		 2647static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2648{
2649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2650 struct net_device *dev = info->user_ptr[1];
2651 struct wireless_dev *wdev = dev->ieee80211_ptr;
2652 struct cfg80211_beacon_data params;
2653 int err;
2654
2655 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2656 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2657 return -EOPNOTSUPP;
2658
2659 if (!rdev->ops->change_beacon)
2660 return -EOPNOTSUPP;
2661
2662 if (!wdev->beacon_interval)
2663 return -EINVAL;
2664
2665 err = nl80211_parse_beacon(info, &params);
2666 if (err)
2667 return err;
2668
2669 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2670}
2671
2672static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2673{
4c476991
JB		 2674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2675 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2676
60771780 2677 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2678}
2679
5727ef1b
JB		 2680static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2681 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2682 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2683 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2684 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2685 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2686 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2687};
2688
eccb8e8f 2689static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2690 enum nl80211_iftype iftype,
eccb8e8f 2691 struct station_parameters *params)
5727ef1b
JB		 2692{
2693 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2694 struct nlattr *nla;
5727ef1b
JB		 2695 int flag;
2696
eccb8e8f
JB		 2697 /*
2698 * Try parsing the new attribute first so userspace
2699 * can specify both for older kernels.
2700 */
2701 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2702 if (nla) {
2703 struct nl80211_sta_flag_update *sta_flags;
2704
2705 sta_flags = nla_data(nla);
2706 params->sta_flags_mask = sta_flags->mask;
2707 params->sta_flags_set = sta_flags->set;
2708 if ((params->sta_flags_mask |
2709 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2710 return -EINVAL;
2711 return 0;
2712 }
2713
2714 /* if present, parse the old attribute */
5727ef1b 2715
eccb8e8f 2716 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2717 if (!nla)
2718 return 0;
2719
2720 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2721 nla, sta_flags_policy))
2722 return -EINVAL;
2723
bdd3ae3d
JB		 2724 /*
2725 * Only allow certain flags for interface types so that
2726 * other attributes are silently ignored. Remember that
2727 * this is backward compatibility code with old userspace
2728 * and shouldn't be hit in other cases anyway.
2729 */
2730 switch (iftype) {
2731 case NL80211_IFTYPE_AP:
2732 case NL80211_IFTYPE_AP_VLAN:
2733 case NL80211_IFTYPE_P2P_GO:
2734 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2735 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2736 BIT(NL80211_STA_FLAG_WME) |
2737 BIT(NL80211_STA_FLAG_MFP);
2738 break;
2739 case NL80211_IFTYPE_P2P_CLIENT:
2740 case NL80211_IFTYPE_STATION:
2741 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2742 BIT(NL80211_STA_FLAG_TDLS_PEER);
2743 break;
2744 case NL80211_IFTYPE_MESH_POINT:
2745 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2746 BIT(NL80211_STA_FLAG_MFP) |
2747 BIT(NL80211_STA_FLAG_AUTHORIZED);
2748 default:
2749 return -EINVAL;
2750 }
5727ef1b 2751
3383b5a6
JB		 2752 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2753 if (flags[flag]) {
eccb8e8f 2754 params->sta_flags_set |= (1<<flag);
5727ef1b 2755
3383b5a6
JB		 2756 /* no longer support new API additions in old API */
2757 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2758 return -EINVAL;
2759 }
2760 }
2761
5727ef1b
JB		 2762 return 0;
2763}
2764
c8dcfd8a
FF		 2765static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2766 int attr)
2767{
2768 struct nlattr *rate;
8eb41c8d
VK		 2769 u32 bitrate;
2770 u16 bitrate_compat;
c8dcfd8a
FF		 2771
2772 rate = nla_nest_start(msg, attr);
2773 if (!rate)
2774 goto nla_put_failure;
2775
2776 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2777 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2778 /* report 16-bit bitrate only if we can */
2779 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
9360ffd1 2780 if ((bitrate > 0 &&
8eb41c8d
VK		 2781 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2782 (bitrate_compat > 0 &&
2783 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
9360ffd1
DM		 2784 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2785 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2786 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2787 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2788 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2789 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2790 goto nla_put_failure;
c8dcfd8a
FF		 2791
2792 nla_nest_end(msg, rate);
2793 return true;
2794
2795nla_put_failure:
2796 return false;
2797}
2798
15e47304 2799static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 2800 int flags,
2801 struct cfg80211_registered_device *rdev,
2802 struct net_device *dev,
98b62183 2803 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2804{
2805 void *hdr;
f4263c98 2806 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 2807
15e47304 2808 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 2809 if (!hdr)
2810 return -1;
2811
9360ffd1
DM		 2812 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2813 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2814 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2815 goto nla_put_failure;
f5ea9120 2816
2ec600d6
LCC		 2817 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2818 if (!sinfoattr)
fd5b74dc 2819 goto nla_put_failure;
9360ffd1
DM		 2820 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2821 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2822 sinfo->connected_time))
2823 goto nla_put_failure;
2824 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2825 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2826 sinfo->inactive_time))
2827 goto nla_put_failure;
2828 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2829 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2830 sinfo->rx_bytes))
2831 goto nla_put_failure;
2832 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2833 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2834 sinfo->tx_bytes))
2835 goto nla_put_failure;
2836 if ((sinfo->filled & STATION_INFO_LLID) &&
2837 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2838 goto nla_put_failure;
2839 if ((sinfo->filled & STATION_INFO_PLID) &&
2840 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2841 goto nla_put_failure;
2842 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2843 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2844 sinfo->plink_state))
2845 goto nla_put_failure;
66266b3a
JL		 2846 switch (rdev->wiphy.signal_type) {
2847 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2848 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2849 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2850 sinfo->signal))
2851 goto nla_put_failure;
2852 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2853 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2854 sinfo->signal_avg))
2855 goto nla_put_failure;
66266b3a
JL		 2856 break;
2857 default:
2858 break;
2859 }
420e7fab 2860 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2861 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2862 NL80211_STA_INFO_TX_BITRATE))
2863 goto nla_put_failure;
2864 }
2865 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2866 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2867 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2868 goto nla_put_failure;
420e7fab 2869 }
9360ffd1
DM		 2870 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2871 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2872 sinfo->rx_packets))
2873 goto nla_put_failure;
2874 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2875 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2876 sinfo->tx_packets))
2877 goto nla_put_failure;
2878 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2879 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2880 sinfo->tx_retries))
2881 goto nla_put_failure;
2882 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2883 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2884 sinfo->tx_failed))
2885 goto nla_put_failure;
2886 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2887 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2888 sinfo->beacon_loss_count))
2889 goto nla_put_failure;
f4263c98
PS		 2890 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2891 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2892 if (!bss_param)
2893 goto nla_put_failure;
2894
9360ffd1
DM		 2895 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2896 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2897 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2898 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2899 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2900 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2901 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2902 sinfo->bss_param.dtim_period) ||
2903 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2904 sinfo->bss_param.beacon_interval))
2905 goto nla_put_failure;
f4263c98
PS		 2906
2907 nla_nest_end(msg, bss_param);
2908 }
9360ffd1
DM		 2909 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2910 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2911 sizeof(struct nl80211_sta_flag_update),
2912 &sinfo->sta_flags))
2913 goto nla_put_failure;
7eab0f64
JL		 2914 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2915 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2916 sinfo->t_offset))
2917 goto nla_put_failure;
2ec600d6 2918 nla_nest_end(msg, sinfoattr);
fd5b74dc 2919
9360ffd1
DM		 2920 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2921 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2922 sinfo->assoc_req_ies))
2923 goto nla_put_failure;
50d3dfb7 2924
fd5b74dc
JB		 2925 return genlmsg_end(msg, hdr);
2926
2927 nla_put_failure:
bc3ed28c
TG		 2928 genlmsg_cancel(msg, hdr);
2929 return -EMSGSIZE;
fd5b74dc
JB		 2930}
2931
2ec600d6 2932static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2933 struct netlink_callback *cb)
2ec600d6 2934{
2ec600d6
LCC		 2935 struct station_info sinfo;
2936 struct cfg80211_registered_device *dev;
bba95fef 2937 struct net_device *netdev;
2ec600d6 2938 u8 mac_addr[ETH_ALEN];
bba95fef 2939 int sta_idx = cb->args[1];
2ec600d6 2940 int err;
2ec600d6 2941
67748893
JB		 2942 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2943 if (err)
2944 return err;
bba95fef
JB		 2945
2946 if (!dev->ops->dump_station) {
eec60b03 2947 err = -EOPNOTSUPP;
bba95fef
JB		 2948 goto out_err;
2949 }
2950
bba95fef 2951 while (1) {
f612cedf 2952 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2953 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2954 mac_addr, &sinfo);
2955 if (err == -ENOENT)
2956 break;
2957 if (err)
3b85875a 2958 goto out_err;
bba95fef
JB		 2959
2960 if (nl80211_send_station(skb,
15e47304 2961 NETLINK_CB(cb->skb).portid,
bba95fef 2962 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2963 dev, netdev, mac_addr,
bba95fef
JB		 2964 &sinfo) < 0)
2965 goto out;
2966
2967 sta_idx++;
2968 }
2969
2970
2971 out:
2972 cb->args[1] = sta_idx;
2973 err = skb->len;
bba95fef 2974 out_err:
67748893 2975 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2976
2977 return err;
2ec600d6 2978}
fd5b74dc 2979
5727ef1b
JB		 2980static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2981{
4c476991
JB		 2982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2983 struct net_device *dev = info->user_ptr[1];
2ec600d6 2984 struct station_info sinfo;
fd5b74dc
JB		 2985 struct sk_buff *msg;
2986 u8 *mac_addr = NULL;
4c476991 2987 int err;
fd5b74dc 2988
2ec600d6 2989 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2990
2991 if (!info->attrs[NL80211_ATTR_MAC])
2992 return -EINVAL;
2993
2994 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2995
4c476991
JB		 2996 if (!rdev->ops->get_station)
2997 return -EOPNOTSUPP;
3b85875a 2998
4c476991 2999 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 3000 if (err)
4c476991 3001 return err;
2ec600d6 3002
fd2120ca 3003 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3004 if (!msg)
4c476991 3005 return -ENOMEM;
fd5b74dc 3006
15e47304 3007 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3008 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3009 nlmsg_free(msg);
3010 return -ENOBUFS;
3011 }
3b85875a 3012
4c476991 3013 return genlmsg_reply(msg, info);
5727ef1b
JB		 3014}
3015
3016/*
c258d2de 3017 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3018 */
80b99899
JB		 3019static struct net_device *get_vlan(struct genl_info *info,
3020 struct cfg80211_registered_device *rdev)
5727ef1b 3021{
463d0183 3022 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3023 struct net_device *v;
3024 int ret;
3025
3026 if (!vlanattr)
3027 return NULL;
3028
3029 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3030 if (!v)
3031 return ERR_PTR(-ENODEV);
3032
3033 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3034 ret = -EINVAL;
3035 goto error;
5727ef1b 3036 }
80b99899
JB		 3037
3038 if (!netif_running(v)) {
3039 ret = -ENETDOWN;
3040 goto error;
3041 }
3042
3043 return v;
3044 error:
3045 dev_put(v);
3046 return ERR_PTR(ret);
5727ef1b
JB		 3047}
3048
3049static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3050{
4c476991 3051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3052 int err;
4c476991 3053 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3054 struct station_parameters params;
3055 u8 *mac_addr = NULL;
3056
3057 memset(&params, 0, sizeof(params));
3058
3059 params.listen_interval = -1;
57cf8043 3060 params.plink_state = -1;
5727ef1b
JB		 3061
3062 if (info->attrs[NL80211_ATTR_STA_AID])
3063 return -EINVAL;
3064
3065 if (!info->attrs[NL80211_ATTR_MAC])
3066 return -EINVAL;
3067
3068 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3069
3070 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3071 params.supported_rates =
3072 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3073 params.supported_rates_len =
3074 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3075 }
3076
3077 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3078 params.listen_interval =
3079 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3080
36aedc90
JM		 3081 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3082 params.ht_capa =
3083 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3084
bdd90d5e
JB		 3085 if (!rdev->ops->change_station)
3086 return -EOPNOTSUPP;
3087
bdd3ae3d 3088 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3089 return -EINVAL;
3090
2ec600d6
LCC		 3091 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3092 params.plink_action =
3093 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3094
9c3990aa
JC		 3095 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3096 params.plink_state =
3097 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3098
a97f4424
JB		 3099 switch (dev->ieee80211_ptr->iftype) {
3100 case NL80211_IFTYPE_AP:
3101 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3102 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3103 /* disallow mesh-specific things */
3104 if (params.plink_action)
bdd90d5e
JB		 3105 return -EINVAL;
3106
3107 /* TDLS can't be set, ... */
3108 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3109 return -EINVAL;
3110 /*
3111 * ... but don't bother the driver with it. This works around
3112 * a hostapd/wpa_supplicant issue -- it always includes the
3113 * TLDS_PEER flag in the mask even for AP mode.
3114 */
3115 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3116
3117 /* accept only the listed bits */
3118 if (params.sta_flags_mask &
3119 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3120 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3121 BIT(NL80211_STA_FLAG_WME) |
3122 BIT(NL80211_STA_FLAG_MFP)))
3123 return -EINVAL;
3124
3125 /* must be last in here for error handling */
3126 params.vlan = get_vlan(info, rdev);
3127 if (IS_ERR(params.vlan))
3128 return PTR_ERR(params.vlan);
a97f4424 3129 break;
074ac8df 3130 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3131 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3132 /*
3133 * Don't allow userspace to change the TDLS_PEER flag,
3134 * but silently ignore attempts to change it since we
3135 * don't have state here to verify that it doesn't try
3136 * to change the flag.
3137 */
3138 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3139 /* fall through */
3140 case NL80211_IFTYPE_ADHOC:
3141 /* disallow things sta doesn't support */
3142 if (params.plink_action)
3143 return -EINVAL;
3144 if (params.ht_capa)
3145 return -EINVAL;
3146 if (params.listen_interval >= 0)
3147 return -EINVAL;
bdd90d5e
JB		 3148 /* reject any changes other than AUTHORIZED */
3149 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3150 return -EINVAL;
a97f4424
JB		 3151 break;
3152 case NL80211_IFTYPE_MESH_POINT:
3153 /* disallow things mesh doesn't support */
3154 if (params.vlan)
bdd90d5e 3155 return -EINVAL;
a97f4424 3156 if (params.ht_capa)
bdd90d5e 3157 return -EINVAL;
a97f4424 3158 if (params.listen_interval >= 0)
bdd90d5e
JB		 3159 return -EINVAL;
3160 /*
3161 * No special handling for TDLS here -- the userspace
3162 * mesh code doesn't have this bug.
3163 */
b39c48fa
JC		 3164 if (params.sta_flags_mask &
3165 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3166 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3167 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3168 return -EINVAL;
a97f4424
JB		 3169 break;
3170 default:
bdd90d5e 3171 return -EOPNOTSUPP;
034d655e
JB		 3172 }
3173
bdd90d5e 3174 /* be aware of params.vlan when changing code here */
5727ef1b 3175
79c97e97 3176 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3177
5727ef1b
JB		 3178 if (params.vlan)
3179 dev_put(params.vlan);
3b85875a 3180
5727ef1b
JB		 3181 return err;
3182}
3183
c75786c9
EP		 3184static struct nla_policy
3185nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3186 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3187 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3188};
3189
5727ef1b
JB		 3190static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3191{
4c476991 3192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3193 int err;
4c476991 3194 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3195 struct station_parameters params;
3196 u8 *mac_addr = NULL;
3197
3198 memset(&params, 0, sizeof(params));
3199
3200 if (!info->attrs[NL80211_ATTR_MAC])
3201 return -EINVAL;
3202
5727ef1b
JB		 3203 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3204 return -EINVAL;
3205
3206 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3207 return -EINVAL;
3208
0e956c13
TLSC		 3209 if (!info->attrs[NL80211_ATTR_STA_AID])
3210 return -EINVAL;
3211
5727ef1b
JB		 3212 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3213 params.supported_rates =
3214 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3215 params.supported_rates_len =
3216 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3217 params.listen_interval =
3218 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3219
0e956c13
TLSC		 3220 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3221 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3222 return -EINVAL;
51b50fbe 3223
36aedc90
JM		 3224 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3225 params.ht_capa =
3226 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3227
f461be3e
MP		 3228 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3229 params.vht_capa =
3230 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3231
96b78dff
JC		 3232 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3233 params.plink_action =
3234 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3235
bdd90d5e
JB		 3236 if (!rdev->ops->add_station)
3237 return -EOPNOTSUPP;
3238
bdd3ae3d 3239 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3240 return -EINVAL;
3241
bdd90d5e
JB		 3242 switch (dev->ieee80211_ptr->iftype) {
3243 case NL80211_IFTYPE_AP:
3244 case NL80211_IFTYPE_AP_VLAN:
3245 case NL80211_IFTYPE_P2P_GO:
3246 /* parse WME attributes if sta is WME capable */
3247 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3248 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3249 info->attrs[NL80211_ATTR_STA_WME]) {
3250 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3251 struct nlattr *nla;
3252
3253 nla = info->attrs[NL80211_ATTR_STA_WME];
3254 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3255 nl80211_sta_wme_policy);
3256 if (err)
3257 return err;
3258
3259 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3260 params.uapsd_queues =
3261 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3262 if (params.uapsd_queues &
3263 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3264 return -EINVAL;
c75786c9 3265
bdd90d5e
JB		 3266 if (tb[NL80211_STA_WME_MAX_SP])
3267 params.max_sp =
3268 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3269
bdd90d5e
JB		 3270 if (params.max_sp &
3271 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3272 return -EINVAL;
4319e193 3273
bdd90d5e
JB		 3274 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3275 }
3276 /* TDLS peers cannot be added */
3277 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3278 return -EINVAL;
bdd90d5e
JB		 3279 /* but don't bother the driver with it */
3280 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3281
bdd90d5e
JB		 3282 /* must be last in here for error handling */
3283 params.vlan = get_vlan(info, rdev);
3284 if (IS_ERR(params.vlan))
3285 return PTR_ERR(params.vlan);
3286 break;
3287 case NL80211_IFTYPE_MESH_POINT:
3288 /* TDLS peers cannot be added */
3289 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3290 return -EINVAL;
3291 break;
3292 case NL80211_IFTYPE_STATION:
3293 /* Only TDLS peers can be added */
3294 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3295 return -EINVAL;
3296 /* Can only add if TDLS ... */
3297 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3298 return -EOPNOTSUPP;
3299 /* ... with external setup is supported */
3300 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3301 return -EOPNOTSUPP;
3302 break;
3303 default:
3304 return -EOPNOTSUPP;
c75786c9
EP		 3305 }
3306
bdd90d5e 3307 /* be aware of params.vlan when changing code here */
5727ef1b 3308
79c97e97 3309 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3310
5727ef1b
JB		 3311 if (params.vlan)
3312 dev_put(params.vlan);
5727ef1b
JB		 3313 return err;
3314}
3315
3316static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3317{
4c476991
JB		 3318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3319 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3320 u8 *mac_addr = NULL;
3321
3322 if (info->attrs[NL80211_ATTR_MAC])
3323 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3324
e80cf853 3325 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3326 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3327 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3328 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3329 return -EINVAL;
5727ef1b 3330
4c476991
JB		 3331 if (!rdev->ops->del_station)
3332 return -EOPNOTSUPP;
3b85875a 3333
4c476991 3334 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 3335}
3336
15e47304 3337static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3338 int flags, struct net_device *dev,
3339 u8 *dst, u8 *next_hop,
3340 struct mpath_info *pinfo)
3341{
3342 void *hdr;
3343 struct nlattr *pinfoattr;
3344
15e47304 3345 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3346 if (!hdr)
3347 return -1;
3348
9360ffd1
DM		 3349 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3350 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3351 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3352 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3353 goto nla_put_failure;
f5ea9120 3354
2ec600d6
LCC		 3355 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3356 if (!pinfoattr)
3357 goto nla_put_failure;
9360ffd1
DM		 3358 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3359 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3360 pinfo->frame_qlen))
3361 goto nla_put_failure;
3362 if (((pinfo->filled & MPATH_INFO_SN) &&
3363 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3364 ((pinfo->filled & MPATH_INFO_METRIC) &&
3365 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3366 pinfo->metric)) ||
3367 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3368 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3369 pinfo->exptime)) ||
3370 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3371 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3372 pinfo->flags)) ||
3373 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3374 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3375 pinfo->discovery_timeout)) ||
3376 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3377 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3378 pinfo->discovery_retries)))
3379 goto nla_put_failure;
2ec600d6
LCC		 3380
3381 nla_nest_end(msg, pinfoattr);
3382
3383 return genlmsg_end(msg, hdr);
3384
3385 nla_put_failure:
bc3ed28c
TG		 3386 genlmsg_cancel(msg, hdr);
3387 return -EMSGSIZE;
2ec600d6
LCC		 3388}
3389
3390static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3391 struct netlink_callback *cb)
2ec600d6 3392{
2ec600d6
LCC		 3393 struct mpath_info pinfo;
3394 struct cfg80211_registered_device *dev;
bba95fef 3395 struct net_device *netdev;
2ec600d6
LCC		 3396 u8 dst[ETH_ALEN];
3397 u8 next_hop[ETH_ALEN];
bba95fef 3398 int path_idx = cb->args[1];
2ec600d6 3399 int err;
2ec600d6 3400
67748893
JB		 3401 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3402 if (err)
3403 return err;
bba95fef
JB		 3404
3405 if (!dev->ops->dump_mpath) {
eec60b03 3406 err = -EOPNOTSUPP;
bba95fef
JB		 3407 goto out_err;
3408 }
3409
eec60b03
JM		 3410 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3411 err = -EOPNOTSUPP;
0448b5fc 3412 goto out_err;
eec60b03
JM		 3413 }
3414
bba95fef
JB		 3415 while (1) {
3416 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3417 dst, next_hop, &pinfo);
3418 if (err == -ENOENT)
2ec600d6 3419 break;
bba95fef 3420 if (err)
3b85875a 3421 goto out_err;
2ec600d6 3422
15e47304 3423 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3424 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3425 netdev, dst, next_hop,
3426 &pinfo) < 0)
3427 goto out;
2ec600d6 3428
bba95fef 3429 path_idx++;
2ec600d6 3430 }
2ec600d6 3431
2ec600d6 3432
bba95fef
JB		 3433 out:
3434 cb->args[1] = path_idx;
3435 err = skb->len;
bba95fef 3436 out_err:
67748893 3437 nl80211_finish_netdev_dump(dev);
bba95fef 3438 return err;
2ec600d6
LCC		 3439}
3440
3441static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3442{
4c476991 3443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3444 int err;
4c476991 3445 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3446 struct mpath_info pinfo;
3447 struct sk_buff *msg;
3448 u8 *dst = NULL;
3449 u8 next_hop[ETH_ALEN];
3450
3451 memset(&pinfo, 0, sizeof(pinfo));
3452
3453 if (!info->attrs[NL80211_ATTR_MAC])
3454 return -EINVAL;
3455
3456 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3457
4c476991
JB		 3458 if (!rdev->ops->get_mpath)
3459 return -EOPNOTSUPP;
2ec600d6 3460
4c476991
JB		 3461 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3462 return -EOPNOTSUPP;
eec60b03 3463
79c97e97 3464 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3465 if (err)
4c476991 3466 return err;
2ec600d6 3467
fd2120ca 3468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3469 if (!msg)
4c476991 3470 return -ENOMEM;
2ec600d6 3471
15e47304 3472 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3473 dev, dst, next_hop, &pinfo) < 0) {
3474 nlmsg_free(msg);
3475 return -ENOBUFS;
3476 }
3b85875a 3477
4c476991 3478 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3479}
3480
3481static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3482{
4c476991
JB		 3483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3484 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3485 u8 *dst = NULL;
3486 u8 *next_hop = NULL;
3487
3488 if (!info->attrs[NL80211_ATTR_MAC])
3489 return -EINVAL;
3490
3491 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3492 return -EINVAL;
3493
3494 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3495 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3496
4c476991
JB		 3497 if (!rdev->ops->change_mpath)
3498 return -EOPNOTSUPP;
35a8efe1 3499
4c476991
JB		 3500 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3501 return -EOPNOTSUPP;
2ec600d6 3502
4c476991 3503 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3504}
4c476991 3505
2ec600d6
LCC		 3506static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3507{
4c476991
JB		 3508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3509 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3510 u8 *dst = NULL;
3511 u8 *next_hop = NULL;
3512
3513 if (!info->attrs[NL80211_ATTR_MAC])
3514 return -EINVAL;
3515
3516 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3517 return -EINVAL;
3518
3519 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3520 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3521
4c476991
JB		 3522 if (!rdev->ops->add_mpath)
3523 return -EOPNOTSUPP;
35a8efe1 3524
4c476991
JB		 3525 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3526 return -EOPNOTSUPP;
2ec600d6 3527
4c476991 3528 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3529}
3530
3531static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3532{
4c476991
JB		 3533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3534 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3535 u8 *dst = NULL;
3536
3537 if (info->attrs[NL80211_ATTR_MAC])
3538 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3539
4c476991
JB		 3540 if (!rdev->ops->del_mpath)
3541 return -EOPNOTSUPP;
3b85875a 3542
4c476991 3543 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3544}
3545
9f1ba906
JM		 3546static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3547{
4c476991
JB		 3548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3549 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3550 struct bss_parameters params;
3551
3552 memset(&params, 0, sizeof(params));
3553 /* default to not changing parameters */
3554 params.use_cts_prot = -1;
3555 params.use_short_preamble = -1;
3556 params.use_short_slot_time = -1;
fd8aaaf3 3557 params.ap_isolate = -1;
50b12f59 3558 params.ht_opmode = -1;
9f1ba906
JM		 3559
3560 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3561 params.use_cts_prot =
3562 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3563 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3564 params.use_short_preamble =
3565 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3566 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3567 params.use_short_slot_time =
3568 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3569 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3570 params.basic_rates =
3571 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3572 params.basic_rates_len =
3573 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3574 }
fd8aaaf3
FF		 3575 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3576 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3577 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3578 params.ht_opmode =
3579 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3580
4c476991
JB		 3581 if (!rdev->ops->change_bss)
3582 return -EOPNOTSUPP;
9f1ba906 3583
074ac8df 3584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3586 return -EOPNOTSUPP;
3b85875a 3587
4c476991 3588 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3589}
3590
b54452b0 3591static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3592 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3593 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3594 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3595 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3596 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3597 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3598};
3599
3600static int parse_reg_rule(struct nlattr *tb[],
3601 struct ieee80211_reg_rule *reg_rule)
3602{
3603 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3604 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3605
3606 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3607 return -EINVAL;
3608 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3609 return -EINVAL;
3610 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3611 return -EINVAL;
3612 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3613 return -EINVAL;
3614 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3615 return -EINVAL;
3616
3617 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3618
3619 freq_range->start_freq_khz =
3620 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3621 freq_range->end_freq_khz =
3622 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3623 freq_range->max_bandwidth_khz =
3624 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3625
3626 power_rule->max_eirp =
3627 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3628
3629 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3630 power_rule->max_antenna_gain =
3631 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3632
3633 return 0;
3634}
3635
3636static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3637{
3638 int r;
3639 char *data = NULL;
57b5ce07 3640 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 3641
80778f18
LR		 3642 /*
3643 * You should only get this when cfg80211 hasn't yet initialized
3644 * completely when built-in to the kernel right between the time
3645 * window between nl80211_init() and regulatory_init(), if that is
3646 * even possible.
3647 */
3648 mutex_lock(&cfg80211_mutex);
3649 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3650 mutex_unlock(&cfg80211_mutex);
3651 return -EINPROGRESS;
80778f18 3652 }
fe33eb39 3653 mutex_unlock(&cfg80211_mutex);
80778f18 3654
fe33eb39
LR		 3655 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3656 return -EINVAL;
b2e1b302
LR		 3657
3658 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3659
57b5ce07
LR		 3660 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3661 user_reg_hint_type =
3662 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3663 else
3664 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3665
3666 switch (user_reg_hint_type) {
3667 case NL80211_USER_REG_HINT_USER:
3668 case NL80211_USER_REG_HINT_CELL_BASE:
3669 break;
3670 default:
3671 return -EINVAL;
3672 }
3673
3674 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3675
b2e1b302
LR		 3676 return r;
3677}
3678
24bdd9f4 3679static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3680 struct genl_info *info)
93da9cc1 3681{
4c476991 3682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3683 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3684 struct wireless_dev *wdev = dev->ieee80211_ptr;
3685 struct mesh_config cur_params;
3686 int err = 0;
93da9cc1 3687 void *hdr;
3688 struct nlattr *pinfoattr;
3689 struct sk_buff *msg;
3690
29cbe68c
JB		 3691 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3692 return -EOPNOTSUPP;
3693
24bdd9f4 3694 if (!rdev->ops->get_mesh_config)
4c476991 3695 return -EOPNOTSUPP;
f3f92586 3696
29cbe68c
JB		 3697 wdev_lock(wdev);
3698 /* If not connected, get default parameters */
3699 if (!wdev->mesh_id_len)
3700 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3701 else
24bdd9f4 3702 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3703 &cur_params);
3704 wdev_unlock(wdev);
3705
93da9cc1 3706 if (err)
4c476991 3707 return err;
93da9cc1 3708
3709 /* Draw up a netlink message to send back */
fd2120ca 3710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3711 if (!msg)
3712 return -ENOMEM;
15e47304 3713 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 3714 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3715 if (!hdr)
efe1cf0c 3716 goto out;
24bdd9f4 3717 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3718 if (!pinfoattr)
3719 goto nla_put_failure;
9360ffd1
DM		 3720 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3721 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3722 cur_params.dot11MeshRetryTimeout) ||
3723 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3724 cur_params.dot11MeshConfirmTimeout) ||
3725 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3726 cur_params.dot11MeshHoldingTimeout) ||
3727 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3728 cur_params.dot11MeshMaxPeerLinks) ||
3729 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3730 cur_params.dot11MeshMaxRetries) ||
3731 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3732 cur_params.dot11MeshTTL) ||
3733 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3734 cur_params.element_ttl) ||
3735 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3736 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3737 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3738 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3739 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3740 cur_params.dot11MeshHWMPmaxPREQretries) ||
3741 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3742 cur_params.path_refresh_time) ||
3743 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3744 cur_params.min_discovery_timeout) ||
3745 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3746 cur_params.dot11MeshHWMPactivePathTimeout) ||
3747 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3748 cur_params.dot11MeshHWMPpreqMinInterval) ||
3749 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3750 cur_params.dot11MeshHWMPperrMinInterval) ||
3751 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3752 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3753 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3754 cur_params.dot11MeshHWMPRootMode) ||
3755 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3756 cur_params.dot11MeshHWMPRannInterval) ||
3757 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3758 cur_params.dot11MeshGateAnnouncementProtocol) ||
3759 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3760 cur_params.dot11MeshForwarding) ||
3761 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3762 cur_params.rssi_threshold) ||
3763 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3764 cur_params.ht_opmode) ||
3765 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3766 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3767 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3768 cur_params.dot11MeshHWMProotInterval) ||
3769 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3770 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3771 goto nla_put_failure;
93da9cc1 3772 nla_nest_end(msg, pinfoattr);
3773 genlmsg_end(msg, hdr);
4c476991 3774 return genlmsg_reply(msg, info);
93da9cc1 3775
3b85875a 3776 nla_put_failure:
93da9cc1 3777 genlmsg_cancel(msg, hdr);
efe1cf0c 3778 out:
d080e275 3779 nlmsg_free(msg);
4c476991 3780 return -ENOBUFS;
93da9cc1 3781}
3782
b54452b0 3783static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3784 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3785 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3786 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3787 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3788 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3789 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3790 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3791 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3792 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3793 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3794 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3795 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3796 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3797 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3798 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3799 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3800 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3801 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3802 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3803 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3804 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3805 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3806 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3807 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3808 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3809};
3810
c80d545d
JC		 3811static const struct nla_policy
3812 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3813 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3814 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3815 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3816 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3817 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3818 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3819 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3820};
3821
24bdd9f4 3822static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3823 struct mesh_config *cfg,
3824 u32 *mask_out)
93da9cc1 3825{
93da9cc1 3826 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3827 u32 mask = 0;
93da9cc1 3828
bd90fdcc
JB		 3829#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3830do {\
3831 if (table[attr_num]) {\
3832 cfg->param = nla_fn(table[attr_num]); \
3833 mask |= (1 << (attr_num - 1)); \
3834 } \
3835} while (0);\
3836
3837
24bdd9f4 3838 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3839 return -EINVAL;
3840 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3841 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3842 nl80211_meshconf_params_policy))
93da9cc1 3843 return -EINVAL;
3844
93da9cc1 3845 /* This makes sure that there aren't more than 32 mesh config
3846 * parameters (otherwise our bitfield scheme would not work.) */
3847 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3848
3849 /* Fill in the params struct */
93da9cc1 3850 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3851 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3852 nla_get_u16);
93da9cc1 3853 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3854 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3855 nla_get_u16);
93da9cc1 3856 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3857 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3858 nla_get_u16);
93da9cc1 3859 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3860 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3861 nla_get_u16);
93da9cc1 3862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3863 mask, NL80211_MESHCONF_MAX_RETRIES,
3864 nla_get_u8);
93da9cc1 3865 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3866 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3868 mask, NL80211_MESHCONF_ELEMENT_TTL,
3869 nla_get_u8);
93da9cc1 3870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3871 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3872 nla_get_u8);
3873 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3874 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3875 nla_get_u32);
93da9cc1 3876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3877 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3878 nla_get_u8);
93da9cc1 3879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3880 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3881 nla_get_u32);
93da9cc1 3882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3883 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3884 nla_get_u16);
3885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3886 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3887 nla_get_u32);
93da9cc1 3888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 3889 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3890 nla_get_u16);
dca7e943 3891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 3892 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3893 nla_get_u16);
93da9cc1 3894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3895 dot11MeshHWMPnetDiameterTraversalTime, mask,
3896 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3897 nla_get_u16);
3898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3899 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3901 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3902 nla_get_u16);
63c5723b 3903 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3904 dot11MeshGateAnnouncementProtocol, mask,
3905 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3906 nla_get_u8);
94f90656 3907 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 3908 mask, NL80211_MESHCONF_FORWARDING,
3909 nla_get_u8);
55335137 3910 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 3911 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3912 nla_get_u32);
70c33eaa 3913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 3914 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3915 nla_get_u16);
3916 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3917 mask,
3918 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3919 nla_get_u32);
3920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3921 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3922 nla_get_u16);
3923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3924 dot11MeshHWMPconfirmationInterval, mask,
3925 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 3926 nla_get_u16);
bd90fdcc
JB		 3927 if (mask_out)
3928 *mask_out = mask;
c80d545d 3929
bd90fdcc
JB		 3930 return 0;
3931
3932#undef FILL_IN_MESH_PARAM_IF_SET
3933}
3934
c80d545d
JC		 3935static int nl80211_parse_mesh_setup(struct genl_info *info,
3936 struct mesh_setup *setup)
3937{
3938 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3939
3940 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3941 return -EINVAL;
3942 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3943 info->attrs[NL80211_ATTR_MESH_SETUP],
3944 nl80211_mesh_setup_params_policy))
3945 return -EINVAL;
3946
d299a1f2
JC		 3947 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3948 setup->sync_method =
3949 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3950 IEEE80211_SYNC_METHOD_VENDOR :
3951 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3952
c80d545d
JC		 3953 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3954 setup->path_sel_proto =
3955 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3956 IEEE80211_PATH_PROTOCOL_VENDOR :
3957 IEEE80211_PATH_PROTOCOL_HWMP;
3958
3959 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3960 setup->path_metric =
3961 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3962 IEEE80211_PATH_METRIC_VENDOR :
3963 IEEE80211_PATH_METRIC_AIRTIME;
3964
581a8b0f
JC		 3965
3966 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3967 struct nlattr *ieattr =
581a8b0f 3968 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3969 if (!is_valid_ie_attr(ieattr))
3970 return -EINVAL;
581a8b0f
JC		 3971 setup->ie = nla_data(ieattr);
3972 setup->ie_len = nla_len(ieattr);
c80d545d 3973 }
b130e5ce
JC		 3974 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3975 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3976
3977 return 0;
3978}
3979
24bdd9f4 3980static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3981 struct genl_info *info)
bd90fdcc
JB		 3982{
3983 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3984 struct net_device *dev = info->user_ptr[1];
29cbe68c 3985 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3986 struct mesh_config cfg;
3987 u32 mask;
3988 int err;
3989
29cbe68c
JB		 3990 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3991 return -EOPNOTSUPP;
3992
24bdd9f4 3993 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3994 return -EOPNOTSUPP;
3995
24bdd9f4 3996 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3997 if (err)
3998 return err;
3999
29cbe68c
JB		 4000 wdev_lock(wdev);
4001 if (!wdev->mesh_id_len)
4002 err = -ENOLINK;
4003
4004 if (!err)
24bdd9f4 4005 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 4006 mask, &cfg);
4007
4008 wdev_unlock(wdev);
4009
4010 return err;
93da9cc1 4011}
4012
f130347c
LR		 4013static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4014{
4015 struct sk_buff *msg;
4016 void *hdr = NULL;
4017 struct nlattr *nl_reg_rules;
4018 unsigned int i;
4019 int err = -EINVAL;
4020
a1794390 4021 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4022
4023 if (!cfg80211_regdomain)
4024 goto out;
4025
fd2120ca 4026 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4027 if (!msg) {
4028 err = -ENOBUFS;
4029 goto out;
4030 }
4031
15e47304 4032 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4033 NL80211_CMD_GET_REG);
4034 if (!hdr)
efe1cf0c 4035 goto put_failure;
f130347c 4036
9360ffd1
DM		 4037 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4038 cfg80211_regdomain->alpha2) ||
4039 (cfg80211_regdomain->dfs_region &&
4040 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4041 cfg80211_regdomain->dfs_region)))
4042 goto nla_put_failure;
f130347c 4043
57b5ce07
LR		 4044 if (reg_last_request_cell_base() &&
4045 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4046 NL80211_USER_REG_HINT_CELL_BASE))
4047 goto nla_put_failure;
4048
f130347c
LR		 4049 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4050 if (!nl_reg_rules)
4051 goto nla_put_failure;
4052
4053 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4054 struct nlattr *nl_reg_rule;
4055 const struct ieee80211_reg_rule *reg_rule;
4056 const struct ieee80211_freq_range *freq_range;
4057 const struct ieee80211_power_rule *power_rule;
4058
4059 reg_rule = &cfg80211_regdomain->reg_rules[i];
4060 freq_range = &reg_rule->freq_range;
4061 power_rule = &reg_rule->power_rule;
4062
4063 nl_reg_rule = nla_nest_start(msg, i);
4064 if (!nl_reg_rule)
4065 goto nla_put_failure;
4066
9360ffd1
DM		 4067 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4068 reg_rule->flags) ||
4069 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4070 freq_range->start_freq_khz) ||
4071 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4072 freq_range->end_freq_khz) ||
4073 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4074 freq_range->max_bandwidth_khz) ||
4075 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4076 power_rule->max_antenna_gain) ||
4077 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4078 power_rule->max_eirp))
4079 goto nla_put_failure;
f130347c
LR		 4080
4081 nla_nest_end(msg, nl_reg_rule);
4082 }
4083
4084 nla_nest_end(msg, nl_reg_rules);
4085
4086 genlmsg_end(msg, hdr);
134e6375 4087 err = genlmsg_reply(msg, info);
f130347c
LR		 4088 goto out;
4089
4090nla_put_failure:
4091 genlmsg_cancel(msg, hdr);
efe1cf0c 4092put_failure:
d080e275 4093 nlmsg_free(msg);
f130347c
LR		 4094 err = -EMSGSIZE;
4095out:
a1794390 4096 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4097 return err;
4098}
4099
b2e1b302
LR		 4100static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4101{
4102 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4103 struct nlattr *nl_reg_rule;
4104 char *alpha2 = NULL;
4105 int rem_reg_rules = 0, r = 0;
4106 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4107 u8 dfs_region = 0;
b2e1b302
LR		 4108 struct ieee80211_regdomain *rd = NULL;
4109
4110 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4111 return -EINVAL;
4112
4113 if (!info->attrs[NL80211_ATTR_REG_RULES])
4114 return -EINVAL;
4115
4116 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4117
8b60b078
LR		 4118 if (info->attrs[NL80211_ATTR_DFS_REGION])
4119 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4120
b2e1b302
LR		 4121 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4122 rem_reg_rules) {
4123 num_rules++;
4124 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4125 return -EINVAL;
b2e1b302
LR		 4126 }
4127
61405e97
LR		 4128 mutex_lock(&cfg80211_mutex);
4129
d0e18f83
LR		 4130 if (!reg_is_valid_request(alpha2)) {
4131 r = -EINVAL;
4132 goto bad_reg;
4133 }
b2e1b302
LR		 4134
4135 size_of_regd = sizeof(struct ieee80211_regdomain) +
4136 (num_rules * sizeof(struct ieee80211_reg_rule));
4137
4138 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 4139 if (!rd) {
4140 r = -ENOMEM;
4141 goto bad_reg;
4142 }
b2e1b302
LR		 4143
4144 rd->n_reg_rules = num_rules;
4145 rd->alpha2[0] = alpha2[0];
4146 rd->alpha2[1] = alpha2[1];
4147
8b60b078
LR		 4148 /*
4149 * Disable DFS master mode if the DFS region was
4150 * not supported or known on this kernel.
4151 */
4152 if (reg_supported_dfs_region(dfs_region))
4153 rd->dfs_region = dfs_region;
4154
b2e1b302
LR		 4155 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4156 rem_reg_rules) {
4157 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4158 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4159 reg_rule_policy);
4160 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4161 if (r)
4162 goto bad_reg;
4163
4164 rule_idx++;
4165
d0e18f83
LR		 4166 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4167 r = -EINVAL;
b2e1b302 4168 goto bad_reg;
d0e18f83 4169 }
b2e1b302
LR		 4170 }
4171
4172 BUG_ON(rule_idx != num_rules);
4173
b2e1b302 4174 r = set_regdom(rd);
61405e97 4175
a1794390 4176 mutex_unlock(&cfg80211_mutex);
d0e18f83 4177
b2e1b302
LR		 4178 return r;
4179
d2372b31 4180 bad_reg:
61405e97 4181 mutex_unlock(&cfg80211_mutex);
b2e1b302 4182 kfree(rd);
d0e18f83 4183 return r;
b2e1b302
LR		 4184}
4185
83f5e2cf
JB		 4186static int validate_scan_freqs(struct nlattr *freqs)
4187{
4188 struct nlattr *attr1, *attr2;
4189 int n_channels = 0, tmp1, tmp2;
4190
4191 nla_for_each_nested(attr1, freqs, tmp1) {
4192 n_channels++;
4193 /*
4194 * Some hardware has a limited channel list for
4195 * scanning, and it is pretty much nonsensical
4196 * to scan for a channel twice, so disallow that
4197 * and don't require drivers to check that the
4198 * channel list they get isn't longer than what
4199 * they can scan, as long as they can scan all
4200 * the channels they registered at once.
4201 */
4202 nla_for_each_nested(attr2, freqs, tmp2)
4203 if (attr1 != attr2 &&
4204 nla_get_u32(attr1) == nla_get_u32(attr2))
4205 return 0;
4206 }
4207
4208 return n_channels;
4209}
4210
2a519311
JB		 4211static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4212{
4c476991 4213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4214 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4215 struct cfg80211_scan_request *request;
2a519311
JB		 4216 struct nlattr *attr;
4217 struct wiphy *wiphy;
83f5e2cf 4218 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4219 size_t ie_len;
2a519311 4220
f4a11bb0
JB		 4221 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4222 return -EINVAL;
4223
79c97e97 4224 wiphy = &rdev->wiphy;
2a519311 4225
4c476991
JB		 4226 if (!rdev->ops->scan)
4227 return -EOPNOTSUPP;
2a519311 4228
4c476991
JB		 4229 if (rdev->scan_req)
4230 return -EBUSY;
2a519311
JB		 4231
4232 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4233 n_channels = validate_scan_freqs(
4234 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4235 if (!n_channels)
4236 return -EINVAL;
2a519311 4237 } else {
34850ab2 4238 enum ieee80211_band band;
83f5e2cf
JB		 4239 n_channels = 0;
4240
2a519311
JB		 4241 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4242 if (wiphy->bands[band])
4243 n_channels += wiphy->bands[band]->n_channels;
4244 }
4245
4246 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4247 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4248 n_ssids++;
4249
4c476991
JB		 4250 if (n_ssids > wiphy->max_scan_ssids)
4251 return -EINVAL;
2a519311 4252
70692ad2
JM		 4253 if (info->attrs[NL80211_ATTR_IE])
4254 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4255 else
4256 ie_len = 0;
4257
4c476991
JB		 4258 if (ie_len > wiphy->max_scan_ie_len)
4259 return -EINVAL;
18a83659 4260
2a519311 4261 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4262 + sizeof(*request->ssids) * n_ssids
4263 + sizeof(*request->channels) * n_channels
70692ad2 4264 + ie_len, GFP_KERNEL);
4c476991
JB		 4265 if (!request)
4266 return -ENOMEM;
2a519311 4267
2a519311 4268 if (n_ssids)
5ba63533 4269 request->ssids = (void *)&request->channels[n_channels];
2a519311 4270 request->n_ssids = n_ssids;
70692ad2
JM		 4271 if (ie_len) {
4272 if (request->ssids)
4273 request->ie = (void *)(request->ssids + n_ssids);
4274 else
4275 request->ie = (void *)(request->channels + n_channels);
4276 }
2a519311 4277
584991dc 4278 i = 0;
2a519311
JB		 4279 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4280 /* user specified, bail out if channel not found */
2a519311 4281 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4282 struct ieee80211_channel *chan;
4283
4284 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4285
4286 if (!chan) {
2a519311
JB		 4287 err = -EINVAL;
4288 goto out_free;
4289 }
584991dc
JB		 4290
4291 /* ignore disabled channels */
4292 if (chan->flags & IEEE80211_CHAN_DISABLED)
4293 continue;
4294
4295 request->channels[i] = chan;
2a519311
JB		 4296 i++;
4297 }
4298 } else {
34850ab2
JB		 4299 enum ieee80211_band band;
4300
2a519311 4301 /* all channels */
2a519311
JB		 4302 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4303 int j;
4304 if (!wiphy->bands[band])
4305 continue;
4306 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4307 struct ieee80211_channel *chan;
4308
4309 chan = &wiphy->bands[band]->channels[j];
4310
4311 if (chan->flags & IEEE80211_CHAN_DISABLED)
4312 continue;
4313
4314 request->channels[i] = chan;
2a519311
JB		 4315 i++;
4316 }
4317 }
4318 }
4319
584991dc
JB		 4320 if (!i) {
4321 err = -EINVAL;
4322 goto out_free;
4323 }
4324
4325 request->n_channels = i;
4326
2a519311
JB		 4327 i = 0;
4328 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4329 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4330 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4331 err = -EINVAL;
4332 goto out_free;
4333 }
57a27e1d 4334 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4335 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4336 i++;
4337 }
4338 }
4339
70692ad2
JM		 4340 if (info->attrs[NL80211_ATTR_IE]) {
4341 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4342 memcpy((void *)request->ie,
4343 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4344 request->ie_len);
4345 }
4346
34850ab2 4347 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4348 if (wiphy->bands[i])
4349 request->rates[i] =
4350 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4351
4352 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4353 nla_for_each_nested(attr,
4354 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4355 tmp) {
4356 enum ieee80211_band band = nla_type(attr);
4357
84404623 4358 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4359 err = -EINVAL;
4360 goto out_free;
4361 }
4362 err = ieee80211_get_ratemask(wiphy->bands[band],
4363 nla_data(attr),
4364 nla_len(attr),
4365 &request->rates[band]);
4366 if (err)
4367 goto out_free;
4368 }
4369 }
4370
46856bbf 4371 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4372 request->flags = nla_get_u32(
4373 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4374 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4375 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4376 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4377 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4378 err = -EOPNOTSUPP;
4379 goto out_free;
4380 }
4381 }
ed473771 4382
e9f935e3
RM		 4383 request->no_cck =
4384 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4385
fd014284 4386 request->wdev = wdev;
79c97e97 4387 request->wiphy = &rdev->wiphy;
15d6030b 4388 request->scan_start = jiffies;
2a519311 4389
79c97e97 4390 rdev->scan_req = request;
fd014284 4391 err = rdev->ops->scan(&rdev->wiphy, request);
2a519311 4392
463d0183 4393 if (!err) {
fd014284
JB		 4394 nl80211_send_scan_start(rdev, wdev);
4395 if (wdev->netdev)
4396 dev_hold(wdev->netdev);
4c476991 4397 } else {
2a519311 4398 out_free:
79c97e97 4399 rdev->scan_req = NULL;
2a519311
JB		 4400 kfree(request);
4401 }
3b85875a 4402
2a519311
JB		 4403 return err;
4404}
4405
807f8a8c
LC		 4406static int nl80211_start_sched_scan(struct sk_buff *skb,
4407 struct genl_info *info)
4408{
4409 struct cfg80211_sched_scan_request *request;
4410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4411 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4412 struct nlattr *attr;
4413 struct wiphy *wiphy;
a1f1c21c 4414 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4415 u32 interval;
807f8a8c
LC		 4416 enum ieee80211_band band;
4417 size_t ie_len;
a1f1c21c 4418 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4419
4420 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4421 !rdev->ops->sched_scan_start)
4422 return -EOPNOTSUPP;
4423
4424 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4425 return -EINVAL;
4426
bbe6ad6d
LC		 4427 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4428 return -EINVAL;
4429
4430 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4431 if (interval == 0)
4432 return -EINVAL;
4433
807f8a8c
LC		 4434 wiphy = &rdev->wiphy;
4435
4436 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4437 n_channels = validate_scan_freqs(
4438 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4439 if (!n_channels)
4440 return -EINVAL;
4441 } else {
4442 n_channels = 0;
4443
4444 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4445 if (wiphy->bands[band])
4446 n_channels += wiphy->bands[band]->n_channels;
4447 }
4448
4449 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4450 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4451 tmp)
4452 n_ssids++;
4453
93b6aa69 4454 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4455 return -EINVAL;
4456
a1f1c21c
LC		 4457 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4458 nla_for_each_nested(attr,
4459 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4460 tmp)
4461 n_match_sets++;
4462
4463 if (n_match_sets > wiphy->max_match_sets)
4464 return -EINVAL;
4465
807f8a8c
LC		 4466 if (info->attrs[NL80211_ATTR_IE])
4467 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4468 else
4469 ie_len = 0;
4470
5a865bad 4471 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4472 return -EINVAL;
4473
c10841ca
LC		 4474 mutex_lock(&rdev->sched_scan_mtx);
4475
4476 if (rdev->sched_scan_req) {
4477 err = -EINPROGRESS;
4478 goto out;
4479 }
4480
807f8a8c 4481 request = kzalloc(sizeof(*request)
a2cd43c5 4482 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4483 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4484 + sizeof(*request->channels) * n_channels
807f8a8c 4485 + ie_len, GFP_KERNEL);
c10841ca
LC		 4486 if (!request) {
4487 err = -ENOMEM;
4488 goto out;
4489 }
807f8a8c
LC		 4490
4491 if (n_ssids)
4492 request->ssids = (void *)&request->channels[n_channels];
4493 request->n_ssids = n_ssids;
4494 if (ie_len) {
4495 if (request->ssids)
4496 request->ie = (void *)(request->ssids + n_ssids);
4497 else
4498 request->ie = (void *)(request->channels + n_channels);
4499 }
4500
a1f1c21c
LC		 4501 if (n_match_sets) {
4502 if (request->ie)
4503 request->match_sets = (void *)(request->ie + ie_len);
4504 else if (request->ssids)
4505 request->match_sets =
4506 (void *)(request->ssids + n_ssids);
4507 else
4508 request->match_sets =
4509 (void *)(request->channels + n_channels);
4510 }
4511 request->n_match_sets = n_match_sets;
4512
807f8a8c
LC		 4513 i = 0;
4514 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4515 /* user specified, bail out if channel not found */
4516 nla_for_each_nested(attr,
4517 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4518 tmp) {
4519 struct ieee80211_channel *chan;
4520
4521 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4522
4523 if (!chan) {
4524 err = -EINVAL;
4525 goto out_free;
4526 }
4527
4528 /* ignore disabled channels */
4529 if (chan->flags & IEEE80211_CHAN_DISABLED)
4530 continue;
4531
4532 request->channels[i] = chan;
4533 i++;
4534 }
4535 } else {
4536 /* all channels */
4537 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4538 int j;
4539 if (!wiphy->bands[band])
4540 continue;
4541 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4542 struct ieee80211_channel *chan;
4543
4544 chan = &wiphy->bands[band]->channels[j];
4545
4546 if (chan->flags & IEEE80211_CHAN_DISABLED)
4547 continue;
4548
4549 request->channels[i] = chan;
4550 i++;
4551 }
4552 }
4553 }
4554
4555 if (!i) {
4556 err = -EINVAL;
4557 goto out_free;
4558 }
4559
4560 request->n_channels = i;
4561
4562 i = 0;
4563 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4564 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4565 tmp) {
57a27e1d 4566 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4567 err = -EINVAL;
4568 goto out_free;
4569 }
57a27e1d 4570 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4571 memcpy(request->ssids[i].ssid, nla_data(attr),
4572 nla_len(attr));
807f8a8c
LC		 4573 i++;
4574 }
4575 }
4576
a1f1c21c
LC		 4577 i = 0;
4578 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4579 nla_for_each_nested(attr,
4580 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4581 tmp) {
88e920b4 4582 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4583
4584 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4585 nla_data(attr), nla_len(attr),
4586 nl80211_match_policy);
4a4ab0d7 4587 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4588 if (ssid) {
4589 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4590 err = -EINVAL;
4591 goto out_free;
4592 }
4593 memcpy(request->match_sets[i].ssid.ssid,
4594 nla_data(ssid), nla_len(ssid));
4595 request->match_sets[i].ssid.ssid_len =
4596 nla_len(ssid);
4597 }
88e920b4
TP		 4598 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4599 if (rssi)
4600 request->rssi_thold = nla_get_u32(rssi);
4601 else
4602 request->rssi_thold =
4603 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4604 i++;
4605 }
4606 }
4607
807f8a8c
LC		 4608 if (info->attrs[NL80211_ATTR_IE]) {
4609 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4610 memcpy((void *)request->ie,
4611 nla_data(info->attrs[NL80211_ATTR_IE]),
4612 request->ie_len);
4613 }
4614
46856bbf 4615 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4616 request->flags = nla_get_u32(
4617 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4618 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4619 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4620 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4621 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4622 err = -EOPNOTSUPP;
4623 goto out_free;
4624 }
4625 }
ed473771 4626
807f8a8c
LC		 4627 request->dev = dev;
4628 request->wiphy = &rdev->wiphy;
bbe6ad6d 4629 request->interval = interval;
15d6030b 4630 request->scan_start = jiffies;
807f8a8c
LC		 4631
4632 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4633 if (!err) {
4634 rdev->sched_scan_req = request;
4635 nl80211_send_sched_scan(rdev, dev,
4636 NL80211_CMD_START_SCHED_SCAN);
4637 goto out;
4638 }
4639
4640out_free:
4641 kfree(request);
4642out:
c10841ca 4643 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4644 return err;
4645}
4646
4647static int nl80211_stop_sched_scan(struct sk_buff *skb,
4648 struct genl_info *info)
4649{
4650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4651 int err;
807f8a8c
LC		 4652
4653 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4654 !rdev->ops->sched_scan_stop)
4655 return -EOPNOTSUPP;
4656
c10841ca
LC		 4657 mutex_lock(&rdev->sched_scan_mtx);
4658 err = __cfg80211_stop_sched_scan(rdev, false);
4659 mutex_unlock(&rdev->sched_scan_mtx);
4660
4661 return err;
807f8a8c
LC		 4662}
4663
9720bb3a
JB		 4664static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4665 u32 seq, int flags,
2a519311 4666 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4667 struct wireless_dev *wdev,
4668 struct cfg80211_internal_bss *intbss)
2a519311 4669{
48ab905d 4670 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4671 void *hdr;
4672 struct nlattr *bss;
48ab905d
JB		 4673
4674 ASSERT_WDEV_LOCK(wdev);
2a519311 4675
15e47304 4676 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4677 NL80211_CMD_NEW_SCAN_RESULTS);
4678 if (!hdr)
4679 return -1;
4680
9720bb3a
JB		 4681 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4682
9360ffd1
DM		 4683 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4685 goto nla_put_failure;
2a519311
JB		 4686
4687 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4688 if (!bss)
4689 goto nla_put_failure;
9360ffd1
DM		 4690 if ((!is_zero_ether_addr(res->bssid) &&
4691 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4692 (res->information_elements && res->len_information_elements &&
4693 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4694 res->len_information_elements,
4695 res->information_elements)) ||
4696 (res->beacon_ies && res->len_beacon_ies &&
4697 res->beacon_ies != res->information_elements &&
4698 nla_put(msg, NL80211_BSS_BEACON_IES,
4699 res->len_beacon_ies, res->beacon_ies)))
4700 goto nla_put_failure;
4701 if (res->tsf &&
4702 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4703 goto nla_put_failure;
4704 if (res->beacon_interval &&
4705 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4706 goto nla_put_failure;
4707 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4708 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4709 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4710 jiffies_to_msecs(jiffies - intbss->ts)))
4711 goto nla_put_failure;
2a519311 4712
77965c97 4713 switch (rdev->wiphy.signal_type) {
2a519311 4714 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4715 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4716 goto nla_put_failure;
2a519311
JB		 4717 break;
4718 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4719 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4720 goto nla_put_failure;
2a519311
JB		 4721 break;
4722 default:
4723 break;
4724 }
4725
48ab905d 4726 switch (wdev->iftype) {
074ac8df 4727 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4728 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4729 if (intbss == wdev->current_bss &&
4730 nla_put_u32(msg, NL80211_BSS_STATUS,
4731 NL80211_BSS_STATUS_ASSOCIATED))
4732 goto nla_put_failure;
48ab905d
JB		 4733 break;
4734 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4735 if (intbss == wdev->current_bss &&
4736 nla_put_u32(msg, NL80211_BSS_STATUS,
4737 NL80211_BSS_STATUS_IBSS_JOINED))
4738 goto nla_put_failure;
48ab905d
JB		 4739 break;
4740 default:
4741 break;
4742 }
4743
2a519311
JB		 4744 nla_nest_end(msg, bss);
4745
4746 return genlmsg_end(msg, hdr);
4747
4748 nla_put_failure:
4749 genlmsg_cancel(msg, hdr);
4750 return -EMSGSIZE;
4751}
4752
4753static int nl80211_dump_scan(struct sk_buff *skb,
4754 struct netlink_callback *cb)
4755{
48ab905d
JB		 4756 struct cfg80211_registered_device *rdev;
4757 struct net_device *dev;
2a519311 4758 struct cfg80211_internal_bss *scan;
48ab905d 4759 struct wireless_dev *wdev;
2a519311
JB		 4760 int start = cb->args[1], idx = 0;
4761 int err;
4762
67748893
JB		 4763 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4764 if (err)
4765 return err;
2a519311 4766
48ab905d 4767 wdev = dev->ieee80211_ptr;
2a519311 4768
48ab905d
JB		 4769 wdev_lock(wdev);
4770 spin_lock_bh(&rdev->bss_lock);
4771 cfg80211_bss_expire(rdev);
4772
9720bb3a
JB		 4773 cb->seq = rdev->bss_generation;
4774
48ab905d 4775 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4776 if (++idx <= start)
4777 continue;
9720bb3a 4778 if (nl80211_send_bss(skb, cb,
2a519311 4779 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4780 rdev, wdev, scan) < 0) {
2a519311 4781 idx--;
67748893 4782 break;
2a519311
JB		 4783 }
4784 }
4785
48ab905d
JB		 4786 spin_unlock_bh(&rdev->bss_lock);
4787 wdev_unlock(wdev);
2a519311
JB		 4788
4789 cb->args[1] = idx;
67748893 4790 nl80211_finish_netdev_dump(rdev);
2a519311 4791
67748893 4792 return skb->len;
2a519311
JB		 4793}
4794
15e47304 4795static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 4796 int flags, struct net_device *dev,
4797 struct survey_info *survey)
4798{
4799 void *hdr;
4800 struct nlattr *infoattr;
4801
15e47304 4802 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 4803 NL80211_CMD_NEW_SURVEY_RESULTS);
4804 if (!hdr)
4805 return -ENOMEM;
4806
9360ffd1
DM		 4807 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4808 goto nla_put_failure;
61fa713c
HS		 4809
4810 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4811 if (!infoattr)
4812 goto nla_put_failure;
4813
9360ffd1
DM		 4814 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4815 survey->channel->center_freq))
4816 goto nla_put_failure;
4817
4818 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4819 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4820 goto nla_put_failure;
4821 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4822 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4823 goto nla_put_failure;
4824 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4825 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4826 survey->channel_time))
4827 goto nla_put_failure;
4828 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4829 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4830 survey->channel_time_busy))
4831 goto nla_put_failure;
4832 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4833 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4834 survey->channel_time_ext_busy))
4835 goto nla_put_failure;
4836 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4837 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4838 survey->channel_time_rx))
4839 goto nla_put_failure;
4840 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4841 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4842 survey->channel_time_tx))
4843 goto nla_put_failure;
61fa713c
HS		 4844
4845 nla_nest_end(msg, infoattr);
4846
4847 return genlmsg_end(msg, hdr);
4848
4849 nla_put_failure:
4850 genlmsg_cancel(msg, hdr);
4851 return -EMSGSIZE;
4852}
4853
4854static int nl80211_dump_survey(struct sk_buff *skb,
4855 struct netlink_callback *cb)
4856{
4857 struct survey_info survey;
4858 struct cfg80211_registered_device *dev;
4859 struct net_device *netdev;
61fa713c
HS		 4860 int survey_idx = cb->args[1];
4861 int res;
4862
67748893
JB		 4863 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4864 if (res)
4865 return res;
61fa713c
HS		 4866
4867 if (!dev->ops->dump_survey) {
4868 res = -EOPNOTSUPP;
4869 goto out_err;
4870 }
4871
4872 while (1) {
180cdc79
LR		 4873 struct ieee80211_channel *chan;
4874
61fa713c
HS		 4875 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4876 &survey);
4877 if (res == -ENOENT)
4878 break;
4879 if (res)
4880 goto out_err;
4881
180cdc79
LR		 4882 /* Survey without a channel doesn't make sense */
4883 if (!survey.channel) {
4884 res = -EINVAL;
4885 goto out;
4886 }
4887
4888 chan = ieee80211_get_channel(&dev->wiphy,
4889 survey.channel->center_freq);
4890 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4891 survey_idx++;
4892 continue;
4893 }
4894
61fa713c 4895 if (nl80211_send_survey(skb,
15e47304 4896 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 4897 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4898 netdev,
4899 &survey) < 0)
4900 goto out;
4901 survey_idx++;
4902 }
4903
4904 out:
4905 cb->args[1] = survey_idx;
4906 res = skb->len;
4907 out_err:
67748893 4908 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4909 return res;
4910}
4911
b23aa676
SO		 4912static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4913{
4914 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4915 NL80211_WPA_VERSION_2));
4916}
4917
636a5d36
JM		 4918static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4919{
4c476991
JB		 4920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4921 struct net_device *dev = info->user_ptr[1];
19957bb3 4922 struct ieee80211_channel *chan;
e39e5b5e
JM		 4923 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
4924 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 4925 enum nl80211_auth_type auth_type;
fffd0934 4926 struct key_parse key;
d5cdfacb 4927 bool local_state_change;
636a5d36 4928
f4a11bb0
JB		 4929 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4930 return -EINVAL;
4931
4932 if (!info->attrs[NL80211_ATTR_MAC])
4933 return -EINVAL;
4934
1778092e
JM		 4935 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4936 return -EINVAL;
4937
19957bb3
JB		 4938 if (!info->attrs[NL80211_ATTR_SSID])
4939 return -EINVAL;
4940
4941 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4942 return -EINVAL;
4943
fffd0934
JB		 4944 err = nl80211_parse_key(info, &key);
4945 if (err)
4946 return err;
4947
4948 if (key.idx >= 0) {
e31b8213
JB		 4949 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4950 return -EINVAL;
fffd0934
JB		 4951 if (!key.p.key || !key.p.key_len)
4952 return -EINVAL;
4953 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4954 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4955 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4956 key.p.key_len != WLAN_KEY_LEN_WEP104))
4957 return -EINVAL;
4958 if (key.idx > 4)
4959 return -EINVAL;
4960 } else {
4961 key.p.key_len = 0;
4962 key.p.key = NULL;
4963 }
4964
afea0b7a
JB		 4965 if (key.idx >= 0) {
4966 int i;
4967 bool ok = false;
4968 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4969 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4970 ok = true;
4971 break;
4972 }
4973 }
4c476991
JB		 4974 if (!ok)
4975 return -EINVAL;
afea0b7a
JB		 4976 }
4977
4c476991
JB		 4978 if (!rdev->ops->auth)
4979 return -EOPNOTSUPP;
636a5d36 4980
074ac8df 4981 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4982 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4983 return -EOPNOTSUPP;
eec60b03 4984
19957bb3 4985 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4986 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4987 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4988 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4989 return -EINVAL;
636a5d36 4990
19957bb3
JB		 4991 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4992 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4993
4994 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4995 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4996 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4997 }
4998
19957bb3 4999 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5000 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5001 return -EINVAL;
636a5d36 5002
e39e5b5e
JM		 5003 if (auth_type == NL80211_AUTHTYPE_SAE &&
5004 !info->attrs[NL80211_ATTR_SAE_DATA])
5005 return -EINVAL;
5006
5007 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5008 if (auth_type != NL80211_AUTHTYPE_SAE)
5009 return -EINVAL;
5010 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5011 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5012 /* need to include at least Auth Transaction and Status Code */
5013 if (sae_data_len < 4)
5014 return -EINVAL;
5015 }
5016
d5cdfacb
JM		 5017 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5018
95de817b
JB		 5019 /*
5020 * Since we no longer track auth state, ignore
5021 * requests to only change local state.
5022 */
5023 if (local_state_change)
5024 return 0;
5025
4c476991
JB		 5026 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5027 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5028 key.p.key, key.p.key_len, key.idx,
5029 sae_data, sae_data_len);
636a5d36
JM		 5030}
5031
c0692b8f
JB		 5032static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5033 struct genl_info *info,
3dc27d25
JB		 5034 struct cfg80211_crypto_settings *settings,
5035 int cipher_limit)
b23aa676 5036{
c0b2bbd8
JB		 5037 memset(settings, 0, sizeof(*settings));
5038
b23aa676
SO		 5039 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5040
c0692b8f
JB		 5041 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5042 u16 proto;
5043 proto = nla_get_u16(
5044 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5045 settings->control_port_ethertype = cpu_to_be16(proto);
5046 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5047 proto != ETH_P_PAE)
5048 return -EINVAL;
5049 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5050 settings->control_port_no_encrypt = true;
5051 } else
5052 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5053
b23aa676
SO		 5054 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5055 void *data;
5056 int len, i;
5057
5058 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5059 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5060 settings->n_ciphers_pairwise = len / sizeof(u32);
5061
5062 if (len % sizeof(u32))
5063 return -EINVAL;
5064
3dc27d25 5065 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5066 return -EINVAL;
5067
5068 memcpy(settings->ciphers_pairwise, data, len);
5069
5070 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5071 if (!cfg80211_supported_cipher_suite(
5072 &rdev->wiphy,
b23aa676
SO		 5073 settings->ciphers_pairwise[i]))
5074 return -EINVAL;
5075 }
5076
5077 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5078 settings->cipher_group =
5079 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5080 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5081 settings->cipher_group))
b23aa676
SO		 5082 return -EINVAL;
5083 }
5084
5085 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5086 settings->wpa_versions =
5087 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5088 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5089 return -EINVAL;
5090 }
5091
5092 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5093 void *data;
6d30240e 5094 int len;
b23aa676
SO		 5095
5096 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5097 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5098 settings->n_akm_suites = len / sizeof(u32);
5099
5100 if (len % sizeof(u32))
5101 return -EINVAL;
5102
1b9ca027
JM		 5103 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5104 return -EINVAL;
5105
b23aa676 5106 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5107 }
5108
5109 return 0;
5110}
5111
636a5d36
JM		 5112static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5113{
4c476991
JB		 5114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5115 struct net_device *dev = info->user_ptr[1];
19957bb3 5116 struct cfg80211_crypto_settings crypto;
f444de05 5117 struct ieee80211_channel *chan;
3e5d7649 5118 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5119 int err, ssid_len, ie_len = 0;
5120 bool use_mfp = false;
7e7c8926
BG		 5121 u32 flags = 0;
5122 struct ieee80211_ht_cap *ht_capa = NULL;
5123 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5124
f4a11bb0
JB		 5125 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5126 return -EINVAL;
5127
5128 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5129 !info->attrs[NL80211_ATTR_SSID] ||
5130 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5131 return -EINVAL;
5132
4c476991
JB		 5133 if (!rdev->ops->assoc)
5134 return -EOPNOTSUPP;
636a5d36 5135
074ac8df 5136 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5137 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5138 return -EOPNOTSUPP;
eec60b03 5139
19957bb3 5140 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5141
19957bb3
JB		 5142 chan = ieee80211_get_channel(&rdev->wiphy,
5143 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5144 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5145 return -EINVAL;
636a5d36 5146
19957bb3
JB		 5147 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5148 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5149
5150 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5151 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5152 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5153 }
5154
dc6382ce 5155 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5156 enum nl80211_mfp mfp =
dc6382ce 5157 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5158 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5159 use_mfp = true;
4c476991
JB		 5160 else if (mfp != NL80211_MFP_NO)
5161 return -EINVAL;
dc6382ce
JM		 5162 }
5163
3e5d7649
JB		 5164 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5165 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5166
7e7c8926
BG		 5167 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5168 flags |= ASSOC_REQ_DISABLE_HT;
5169
5170 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5171 ht_capa_mask =
5172 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5173
5174 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5175 if (!ht_capa_mask)
5176 return -EINVAL;
5177 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5178 }
5179
c0692b8f 5180 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5181 if (!err)
3e5d7649
JB		 5182 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5183 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5184 &crypto, flags, ht_capa,
5185 ht_capa_mask);
636a5d36 5186
636a5d36
JM		 5187 return err;
5188}
5189
5190static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5191{
4c476991
JB		 5192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5193 struct net_device *dev = info->user_ptr[1];
19957bb3 5194 const u8 *ie = NULL, *bssid;
4c476991 5195 int ie_len = 0;
19957bb3 5196 u16 reason_code;
d5cdfacb 5197 bool local_state_change;
636a5d36 5198
f4a11bb0
JB		 5199 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5200 return -EINVAL;
5201
5202 if (!info->attrs[NL80211_ATTR_MAC])
5203 return -EINVAL;
5204
5205 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5206 return -EINVAL;
5207
4c476991
JB		 5208 if (!rdev->ops->deauth)
5209 return -EOPNOTSUPP;
636a5d36 5210
074ac8df 5211 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5212 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5213 return -EOPNOTSUPP;
eec60b03 5214
19957bb3 5215 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5216
19957bb3
JB		 5217 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5218 if (reason_code == 0) {
f4a11bb0 5219 /* Reason Code 0 is reserved */
4c476991 5220 return -EINVAL;
255e737e 5221 }
636a5d36
JM		 5222
5223 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5224 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5225 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5226 }
5227
d5cdfacb
JM		 5228 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5229
4c476991
JB		 5230 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5231 local_state_change);
636a5d36
JM		 5232}
5233
5234static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5235{
4c476991
JB		 5236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5237 struct net_device *dev = info->user_ptr[1];
19957bb3 5238 const u8 *ie = NULL, *bssid;
4c476991 5239 int ie_len = 0;
19957bb3 5240 u16 reason_code;
d5cdfacb 5241 bool local_state_change;
636a5d36 5242
f4a11bb0
JB		 5243 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5244 return -EINVAL;
5245
5246 if (!info->attrs[NL80211_ATTR_MAC])
5247 return -EINVAL;
5248
5249 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5250 return -EINVAL;
5251
4c476991
JB		 5252 if (!rdev->ops->disassoc)
5253 return -EOPNOTSUPP;
636a5d36 5254
074ac8df 5255 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5256 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5257 return -EOPNOTSUPP;
eec60b03 5258
19957bb3 5259 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5260
19957bb3
JB		 5261 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5262 if (reason_code == 0) {
f4a11bb0 5263 /* Reason Code 0 is reserved */
4c476991 5264 return -EINVAL;
255e737e 5265 }
636a5d36
JM		 5266
5267 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5268 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5269 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5270 }
5271
d5cdfacb
JM		 5272 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5273
4c476991
JB		 5274 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5275 local_state_change);
636a5d36
JM		 5276}
5277
dd5b4cc7
FF		 5278static bool
5279nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5280 int mcast_rate[IEEE80211_NUM_BANDS],
5281 int rateval)
5282{
5283 struct wiphy *wiphy = &rdev->wiphy;
5284 bool found = false;
5285 int band, i;
5286
5287 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5288 struct ieee80211_supported_band *sband;
5289
5290 sband = wiphy->bands[band];
5291 if (!sband)
5292 continue;
5293
5294 for (i = 0; i < sband->n_bitrates; i++) {
5295 if (sband->bitrates[i].bitrate == rateval) {
5296 mcast_rate[band] = i + 1;
5297 found = true;
5298 break;
5299 }
5300 }
5301 }
5302
5303 return found;
5304}
5305
04a773ad
JB		 5306static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5307{
4c476991
JB		 5308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5309 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5310 struct cfg80211_ibss_params ibss;
5311 struct wiphy *wiphy;
fffd0934 5312 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5313 int err;
5314
8e30bc55
JB		 5315 memset(&ibss, 0, sizeof(ibss));
5316
04a773ad
JB		 5317 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5318 return -EINVAL;
5319
5320 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5321 !info->attrs[NL80211_ATTR_SSID] ||
5322 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5323 return -EINVAL;
5324
8e30bc55
JB		 5325 ibss.beacon_interval = 100;
5326
5327 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5328 ibss.beacon_interval =
5329 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5330 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5331 return -EINVAL;
5332 }
5333
4c476991
JB		 5334 if (!rdev->ops->join_ibss)
5335 return -EOPNOTSUPP;
04a773ad 5336
4c476991
JB		 5337 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5338 return -EOPNOTSUPP;
04a773ad 5339
79c97e97 5340 wiphy = &rdev->wiphy;
04a773ad 5341
39193498 5342 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5343 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5344
5345 if (!is_valid_ether_addr(ibss.bssid))
5346 return -EINVAL;
5347 }
04a773ad
JB		 5348 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5349 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5350
5351 if (info->attrs[NL80211_ATTR_IE]) {
5352 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5353 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5354 }
5355
54858ee5
AS		 5356 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5357 enum nl80211_channel_type channel_type;
5358
cd6c6598 5359 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5360 return -EINVAL;
5361
5362 if (channel_type != NL80211_CHAN_NO_HT &&
5363 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5364 return -EINVAL;
5365
5366 ibss.channel_type = channel_type;
5367 } else {
5368 ibss.channel_type = NL80211_CHAN_NO_HT;
5369 }
5370
5371 ibss.channel = rdev_freq_to_chan(rdev,
5372 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5373 ibss.channel_type);
04a773ad
JB		 5374 if (!ibss.channel ||
5375 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5376 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5377 return -EINVAL;
04a773ad 5378
54858ee5
AS		 5379 /* Both channels should be able to initiate communication */
5380 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5381 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5382 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5383 ibss.channel_type))
5384 return -EINVAL;
5385
04a773ad 5386 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5387 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5388
fbd2c8dc
TP		 5389 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5390 u8 *rates =
5391 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5392 int n_rates =
5393 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5394 struct ieee80211_supported_band *sband =
5395 wiphy->bands[ibss.channel->band];
fbd2c8dc 5396
34850ab2
JB		 5397 err = ieee80211_get_ratemask(sband, rates, n_rates,
5398 &ibss.basic_rates);
5399 if (err)
5400 return err;
fbd2c8dc 5401 }
dd5b4cc7
FF		 5402
5403 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5404 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5405 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5406 return -EINVAL;
fbd2c8dc 5407
4c476991
JB		 5408 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5409 connkeys = nl80211_parse_connkeys(rdev,
5410 info->attrs[NL80211_ATTR_KEYS]);
5411 if (IS_ERR(connkeys))
5412 return PTR_ERR(connkeys);
5413 }
04a773ad 5414
267335d6
AQ		 5415 ibss.control_port =
5416 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5417
4c476991 5418 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5419 if (err)
5420 kfree(connkeys);
04a773ad
JB		 5421 return err;
5422}
5423
5424static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5425{
4c476991
JB		 5426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5427 struct net_device *dev = info->user_ptr[1];
04a773ad 5428
4c476991
JB		 5429 if (!rdev->ops->leave_ibss)
5430 return -EOPNOTSUPP;
04a773ad 5431
4c476991
JB		 5432 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5433 return -EOPNOTSUPP;
04a773ad 5434
4c476991 5435 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5436}
5437
aff89a9b
JB		 5438#ifdef CONFIG_NL80211_TESTMODE
5439static struct genl_multicast_group nl80211_testmode_mcgrp = {
5440 .name = "testmode",
5441};
5442
5443static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5444{
4c476991 5445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5446 int err;
5447
5448 if (!info->attrs[NL80211_ATTR_TESTDATA])
5449 return -EINVAL;
5450
aff89a9b
JB		 5451 err = -EOPNOTSUPP;
5452 if (rdev->ops->testmode_cmd) {
5453 rdev->testmode_info = info;
5454 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5455 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5456 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5457 rdev->testmode_info = NULL;
5458 }
5459
aff89a9b
JB		 5460 return err;
5461}
5462
71063f0e
WYG		 5463static int nl80211_testmode_dump(struct sk_buff *skb,
5464 struct netlink_callback *cb)
5465{
00918d33 5466 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5467 int err;
5468 long phy_idx;
5469 void *data = NULL;
5470 int data_len = 0;
5471
5472 if (cb->args[0]) {
5473 /*
5474 * 0 is a valid index, but not valid for args[0],
5475 * so we need to offset by 1.
5476 */
5477 phy_idx = cb->args[0] - 1;
5478 } else {
5479 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5480 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5481 nl80211_policy);
5482 if (err)
5483 return err;
00918d33 5484
2bd7e35d
JB		 5485 mutex_lock(&cfg80211_mutex);
5486 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5487 nl80211_fam.attrbuf);
5488 if (IS_ERR(rdev)) {
5489 mutex_unlock(&cfg80211_mutex);
5490 return PTR_ERR(rdev);
00918d33 5491 }
2bd7e35d
JB		 5492 phy_idx = rdev->wiphy_idx;
5493 rdev = NULL;
5494 mutex_unlock(&cfg80211_mutex);
5495
71063f0e
WYG		 5496 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5497 cb->args[1] =
5498 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5499 }
5500
5501 if (cb->args[1]) {
5502 data = nla_data((void *)cb->args[1]);
5503 data_len = nla_len((void *)cb->args[1]);
5504 }
5505
5506 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5507 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5508 if (!rdev) {
71063f0e
WYG		 5509 mutex_unlock(&cfg80211_mutex);
5510 return -ENOENT;
5511 }
00918d33 5512 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5513 mutex_unlock(&cfg80211_mutex);
5514
00918d33 5515 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5516 err = -EOPNOTSUPP;
5517 goto out_err;
5518 }
5519
5520 while (1) {
15e47304 5521 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 5522 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5523 NL80211_CMD_TESTMODE);
5524 struct nlattr *tmdata;
5525
9360ffd1 5526 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5527 genlmsg_cancel(skb, hdr);
5528 break;
5529 }
5530
5531 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5532 if (!tmdata) {
5533 genlmsg_cancel(skb, hdr);
5534 break;
5535 }
00918d33
JB		 5536 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5537 data, data_len);
71063f0e
WYG		 5538 nla_nest_end(skb, tmdata);
5539
5540 if (err == -ENOBUFS || err == -ENOENT) {
5541 genlmsg_cancel(skb, hdr);
5542 break;
5543 } else if (err) {
5544 genlmsg_cancel(skb, hdr);
5545 goto out_err;
5546 }
5547
5548 genlmsg_end(skb, hdr);
5549 }
5550
5551 err = skb->len;
5552 /* see above */
5553 cb->args[0] = phy_idx + 1;
5554 out_err:
00918d33 5555 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5556 return err;
5557}
5558
aff89a9b
JB		 5559static struct sk_buff *
5560__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 5561 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 5562{
5563 struct sk_buff *skb;
5564 void *hdr;
5565 struct nlattr *data;
5566
5567 skb = nlmsg_new(approxlen + 100, gfp);
5568 if (!skb)
5569 return NULL;
5570
15e47304 5571 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 5572 if (!hdr) {
5573 kfree_skb(skb);
5574 return NULL;
5575 }
5576
9360ffd1
DM		 5577 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5578 goto nla_put_failure;
aff89a9b
JB		 5579 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5580
5581 ((void **)skb->cb)[0] = rdev;
5582 ((void **)skb->cb)[1] = hdr;
5583 ((void **)skb->cb)[2] = data;
5584
5585 return skb;
5586
5587 nla_put_failure:
5588 kfree_skb(skb);
5589 return NULL;
5590}
5591
5592struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5593 int approxlen)
5594{
5595 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5596
5597 if (WARN_ON(!rdev->testmode_info))
5598 return NULL;
5599
5600 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 5601 rdev->testmode_info->snd_portid,
aff89a9b
JB		 5602 rdev->testmode_info->snd_seq,
5603 GFP_KERNEL);
5604}
5605EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5606
5607int cfg80211_testmode_reply(struct sk_buff *skb)
5608{
5609 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5610 void *hdr = ((void **)skb->cb)[1];
5611 struct nlattr *data = ((void **)skb->cb)[2];
5612
5613 if (WARN_ON(!rdev->testmode_info)) {
5614 kfree_skb(skb);
5615 return -EINVAL;
5616 }
5617
5618 nla_nest_end(skb, data);
5619 genlmsg_end(skb, hdr);
5620 return genlmsg_reply(skb, rdev->testmode_info);
5621}
5622EXPORT_SYMBOL(cfg80211_testmode_reply);
5623
5624struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5625 int approxlen, gfp_t gfp)
5626{
5627 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5628
5629 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5630}
5631EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5632
5633void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5634{
5635 void *hdr = ((void **)skb->cb)[1];
5636 struct nlattr *data = ((void **)skb->cb)[2];
5637
5638 nla_nest_end(skb, data);
5639 genlmsg_end(skb, hdr);
5640 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5641}
5642EXPORT_SYMBOL(cfg80211_testmode_event);
5643#endif
5644
b23aa676
SO		 5645static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5646{
4c476991
JB		 5647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5648 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5649 struct cfg80211_connect_params connect;
5650 struct wiphy *wiphy;
fffd0934 5651 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5652 int err;
5653
5654 memset(&connect, 0, sizeof(connect));
5655
5656 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5657 return -EINVAL;
5658
5659 if (!info->attrs[NL80211_ATTR_SSID] ||
5660 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5661 return -EINVAL;
5662
5663 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5664 connect.auth_type =
5665 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 5666 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5667 NL80211_CMD_CONNECT))
b23aa676
SO		 5668 return -EINVAL;
5669 } else
5670 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5671
5672 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5673
c0692b8f 5674 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5675 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5676 if (err)
5677 return err;
b23aa676 5678
074ac8df 5679 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5680 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5681 return -EOPNOTSUPP;
b23aa676 5682
79c97e97 5683 wiphy = &rdev->wiphy;
b23aa676 5684
4486ea98
BS		 5685 connect.bg_scan_period = -1;
5686 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5687 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5688 connect.bg_scan_period =
5689 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5690 }
5691
b23aa676
SO		 5692 if (info->attrs[NL80211_ATTR_MAC])
5693 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5694 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5695 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5696
5697 if (info->attrs[NL80211_ATTR_IE]) {
5698 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5699 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5700 }
5701
5702 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5703 connect.channel =
5704 ieee80211_get_channel(wiphy,
5705 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5706 if (!connect.channel ||
4c476991
JB		 5707 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5708 return -EINVAL;
b23aa676
SO		 5709 }
5710
fffd0934
JB		 5711 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5712 connkeys = nl80211_parse_connkeys(rdev,
5713 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5714 if (IS_ERR(connkeys))
5715 return PTR_ERR(connkeys);
fffd0934
JB		 5716 }
5717
7e7c8926
BG		 5718 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5719 connect.flags |= ASSOC_REQ_DISABLE_HT;
5720
5721 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5722 memcpy(&connect.ht_capa_mask,
5723 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5724 sizeof(connect.ht_capa_mask));
5725
5726 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 5727 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5728 kfree(connkeys);
7e7c8926 5729 return -EINVAL;
b4e4f47e 5730 }
7e7c8926
BG		 5731 memcpy(&connect.ht_capa,
5732 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5733 sizeof(connect.ht_capa));
5734 }
5735
fffd0934 5736 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5737 if (err)
5738 kfree(connkeys);
b23aa676
SO		 5739 return err;
5740}
5741
5742static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5743{
4c476991
JB		 5744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5745 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5746 u16 reason;
5747
5748 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5749 reason = WLAN_REASON_DEAUTH_LEAVING;
5750 else
5751 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5752
5753 if (reason == 0)
5754 return -EINVAL;
5755
074ac8df 5756 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5757 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5758 return -EOPNOTSUPP;
b23aa676 5759
4c476991 5760 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5761}
5762
463d0183
JB		 5763static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5764{
4c476991 5765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5766 struct net *net;
5767 int err;
5768 u32 pid;
5769
5770 if (!info->attrs[NL80211_ATTR_PID])
5771 return -EINVAL;
5772
5773 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5774
463d0183 5775 net = get_net_ns_by_pid(pid);
4c476991
JB		 5776 if (IS_ERR(net))
5777 return PTR_ERR(net);
463d0183
JB		 5778
5779 err = 0;
5780
5781 /* check if anything to do */
4c476991
JB		 5782 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5783 err = cfg80211_switch_netns(rdev, net);
463d0183 5784
463d0183 5785 put_net(net);
463d0183
JB		 5786 return err;
5787}
5788
67fbb16b
SO		 5789static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5790{
4c476991 5791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5792 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5793 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5794 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5795 struct cfg80211_pmksa pmksa;
5796
5797 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5798
5799 if (!info->attrs[NL80211_ATTR_MAC])
5800 return -EINVAL;
5801
5802 if (!info->attrs[NL80211_ATTR_PMKID])
5803 return -EINVAL;
5804
67fbb16b
SO		 5805 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5806 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5807
074ac8df 5808 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5809 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5810 return -EOPNOTSUPP;
67fbb16b
SO		 5811
5812 switch (info->genlhdr->cmd) {
5813 case NL80211_CMD_SET_PMKSA:
5814 rdev_ops = rdev->ops->set_pmksa;
5815 break;
5816 case NL80211_CMD_DEL_PMKSA:
5817 rdev_ops = rdev->ops->del_pmksa;
5818 break;
5819 default:
5820 WARN_ON(1);
5821 break;
5822 }
5823
4c476991
JB		 5824 if (!rdev_ops)
5825 return -EOPNOTSUPP;
67fbb16b 5826
4c476991 5827 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5828}
5829
5830static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5831{
4c476991
JB		 5832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5833 struct net_device *dev = info->user_ptr[1];
67fbb16b 5834
074ac8df 5835 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5836 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5837 return -EOPNOTSUPP;
67fbb16b 5838
4c476991
JB		 5839 if (!rdev->ops->flush_pmksa)
5840 return -EOPNOTSUPP;
67fbb16b 5841
4c476991 5842 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5843}
5844
109086ce
AN		 5845static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5846{
5847 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5848 struct net_device *dev = info->user_ptr[1];
5849 u8 action_code, dialog_token;
5850 u16 status_code;
5851 u8 *peer;
5852
5853 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5854 !rdev->ops->tdls_mgmt)
5855 return -EOPNOTSUPP;
5856
5857 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5858 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5859 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5860 !info->attrs[NL80211_ATTR_IE] ||
5861 !info->attrs[NL80211_ATTR_MAC])
5862 return -EINVAL;
5863
5864 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5865 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5866 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5867 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5868
5869 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5870 dialog_token, status_code,
5871 nla_data(info->attrs[NL80211_ATTR_IE]),
5872 nla_len(info->attrs[NL80211_ATTR_IE]));
5873}
5874
5875static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5876{
5877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5878 struct net_device *dev = info->user_ptr[1];
5879 enum nl80211_tdls_operation operation;
5880 u8 *peer;
5881
5882 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5883 !rdev->ops->tdls_oper)
5884 return -EOPNOTSUPP;
5885
5886 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5887 !info->attrs[NL80211_ATTR_MAC])
5888 return -EINVAL;
5889
5890 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5891 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5892
5893 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5894}
5895
9588bbd5
JM		 5896static int nl80211_remain_on_channel(struct sk_buff *skb,
5897 struct genl_info *info)
5898{
4c476991 5899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 5900 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5
JM		 5901 struct ieee80211_channel *chan;
5902 struct sk_buff *msg;
5903 void *hdr;
5904 u64 cookie;
5905 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5906 u32 freq, duration;
5907 int err;
5908
5909 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5910 !info->attrs[NL80211_ATTR_DURATION])
5911 return -EINVAL;
5912
5913 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5914
ebf348fc
JB		 5915 if (!rdev->ops->remain_on_channel ||
5916 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5917 return -EOPNOTSUPP;
5918
9588bbd5 5919 /*
ebf348fc
JB		 5920 * We should be on that channel for at least a minimum amount of
5921 * time (10ms) but no longer than the driver supports.
9588bbd5 5922 */
ebf348fc 5923 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5924 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5925 return -EINVAL;
5926
cd6c6598
JB		 5927 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5928 !nl80211_valid_channel_type(info, &channel_type))
5929 return -EINVAL;
9588bbd5
JM		 5930
5931 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5932 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5933 if (chan == NULL)
5934 return -EINVAL;
9588bbd5
JM		 5935
5936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5937 if (!msg)
5938 return -ENOMEM;
9588bbd5 5939
15e47304 5940 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 5941 NL80211_CMD_REMAIN_ON_CHANNEL);
5942
5943 if (IS_ERR(hdr)) {
5944 err = PTR_ERR(hdr);
5945 goto free_msg;
5946 }
5947
71bbc994 5948 err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
9588bbd5
JM		 5949 channel_type, duration, &cookie);
5950
5951 if (err)
5952 goto free_msg;
5953
9360ffd1
DM		 5954 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5955 goto nla_put_failure;
9588bbd5
JM		 5956
5957 genlmsg_end(msg, hdr);
4c476991
JB		 5958
5959 return genlmsg_reply(msg, info);
9588bbd5
JM		 5960
5961 nla_put_failure:
5962 err = -ENOBUFS;
5963 free_msg:
5964 nlmsg_free(msg);
9588bbd5
JM		 5965 return err;
5966}
5967
5968static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5969 struct genl_info *info)
5970{
4c476991 5971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 5972 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 5973 u64 cookie;
9588bbd5
JM		 5974
5975 if (!info->attrs[NL80211_ATTR_COOKIE])
5976 return -EINVAL;
5977
4c476991
JB		 5978 if (!rdev->ops->cancel_remain_on_channel)
5979 return -EOPNOTSUPP;
9588bbd5 5980
9588bbd5
JM		 5981 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5982
71bbc994 5983 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
9588bbd5
JM		 5984}
5985
13ae75b1
JM		 5986static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5987 u8 *rates, u8 rates_len)
5988{
5989 u8 i;
5990 u32 mask = 0;
5991
5992 for (i = 0; i < rates_len; i++) {
5993 int rate = (rates[i] & 0x7f) * 5;
5994 int ridx;
5995 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5996 struct ieee80211_rate *srate =
5997 &sband->bitrates[ridx];
5998 if (rate == srate->bitrate) {
5999 mask |= 1 << ridx;
6000 break;
6001 }
6002 }
6003 if (ridx == sband->n_bitrates)
6004 return 0; /* rate not found */
6005 }
6006
6007 return mask;
6008}
6009
24db78c0
SW		 6010static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6011 u8 *rates, u8 rates_len,
6012 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6013{
6014 u8 i;
6015
6016 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6017
6018 for (i = 0; i < rates_len; i++) {
6019 int ridx, rbit;
6020
6021 ridx = rates[i] / 8;
6022 rbit = BIT(rates[i] % 8);
6023
6024 /* check validity */
910570b5 6025 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6026 return false;
6027
6028 /* check availability */
6029 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6030 mcs[ridx] |= rbit;
6031 else
6032 return false;
6033 }
6034
6035 return true;
6036}
6037
b54452b0 6038static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6039 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6040 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6041 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6042 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6043};
6044
6045static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6046 struct genl_info *info)
6047{
6048 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6050 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6051 int rem, i;
6052 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6053 struct nlattr *tx_rates;
6054 struct ieee80211_supported_band *sband;
6055
6056 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6057 return -EINVAL;
6058
4c476991
JB		 6059 if (!rdev->ops->set_bitrate_mask)
6060 return -EOPNOTSUPP;
13ae75b1
JM		 6061
6062 memset(&mask, 0, sizeof(mask));
6063 /* Default to all rates enabled */
6064 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6065 sband = rdev->wiphy.bands[i];
6066 mask.control[i].legacy =
6067 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6068 if (sband)
6069 memcpy(mask.control[i].mcs,
6070 sband->ht_cap.mcs.rx_mask,
6071 sizeof(mask.control[i].mcs));
6072 else
6073 memset(mask.control[i].mcs, 0,
6074 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6075 }
6076
6077 /*
6078 * The nested attribute uses enum nl80211_band as the index. This maps
6079 * directly to the enum ieee80211_band values used in cfg80211.
6080 */
24db78c0 6081 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6082 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6083 {
6084 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6085 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6086 return -EINVAL;
13ae75b1 6087 sband = rdev->wiphy.bands[band];
4c476991
JB		 6088 if (sband == NULL)
6089 return -EINVAL;
13ae75b1
JM		 6090 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6091 nla_len(tx_rates), nl80211_txattr_policy);
6092 if (tb[NL80211_TXRATE_LEGACY]) {
6093 mask.control[band].legacy = rateset_to_mask(
6094 sband,
6095 nla_data(tb[NL80211_TXRATE_LEGACY]),
6096 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6097 if ((mask.control[band].legacy == 0) &&
6098 nla_len(tb[NL80211_TXRATE_LEGACY]))
6099 return -EINVAL;
24db78c0
SW		 6100 }
6101 if (tb[NL80211_TXRATE_MCS]) {
6102 if (!ht_rateset_to_mask(
6103 sband,
6104 nla_data(tb[NL80211_TXRATE_MCS]),
6105 nla_len(tb[NL80211_TXRATE_MCS]),
6106 mask.control[band].mcs))
6107 return -EINVAL;
6108 }
6109
6110 if (mask.control[band].legacy == 0) {
6111 /* don't allow empty legacy rates if HT
6112 * is not even supported. */
6113 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6114 return -EINVAL;
6115
6116 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6117 if (mask.control[band].mcs[i])
6118 break;
6119
6120 /* legacy and mcs rates may not be both empty */
6121 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6122 return -EINVAL;
13ae75b1
JM		 6123 }
6124 }
6125
4c476991 6126 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 6127}
6128
2e161f78 6129static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6130{
4c476991 6131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6132 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6133 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6134
6135 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6136 return -EINVAL;
6137
2e161f78
JB		 6138 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6139 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6140
71bbc994
JB		 6141 switch (wdev->iftype) {
6142 case NL80211_IFTYPE_STATION:
6143 case NL80211_IFTYPE_ADHOC:
6144 case NL80211_IFTYPE_P2P_CLIENT:
6145 case NL80211_IFTYPE_AP:
6146 case NL80211_IFTYPE_AP_VLAN:
6147 case NL80211_IFTYPE_MESH_POINT:
6148 case NL80211_IFTYPE_P2P_GO:
98104fde 6149 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6150 break;
6151 default:
4c476991 6152 return -EOPNOTSUPP;
71bbc994 6153 }
026331c4
JM		 6154
6155 /* not much point in registering if we can't reply */
4c476991
JB		 6156 if (!rdev->ops->mgmt_tx)
6157 return -EOPNOTSUPP;
026331c4 6158
15e47304 6159 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6160 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6161 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6162}
6163
2e161f78 6164static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6165{
4c476991 6166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6167 struct wireless_dev *wdev = info->user_ptr[1];
026331c4
JM		 6168 struct ieee80211_channel *chan;
6169 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 6170 bool channel_type_valid = false;
026331c4
JM		 6171 u32 freq;
6172 int err;
d64d373f 6173 void *hdr = NULL;
026331c4 6174 u64 cookie;
e247bd90 6175 struct sk_buff *msg = NULL;
f7ca38df 6176 unsigned int wait = 0;
e247bd90
JB		 6177 bool offchan, no_cck, dont_wait_for_ack;
6178
6179 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 6180
6181 if (!info->attrs[NL80211_ATTR_FRAME] ||
6182 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6183 return -EINVAL;
6184
4c476991
JB		 6185 if (!rdev->ops->mgmt_tx)
6186 return -EOPNOTSUPP;
026331c4 6187
71bbc994
JB		 6188 switch (wdev->iftype) {
6189 case NL80211_IFTYPE_STATION:
6190 case NL80211_IFTYPE_ADHOC:
6191 case NL80211_IFTYPE_P2P_CLIENT:
6192 case NL80211_IFTYPE_AP:
6193 case NL80211_IFTYPE_AP_VLAN:
6194 case NL80211_IFTYPE_MESH_POINT:
6195 case NL80211_IFTYPE_P2P_GO:
98104fde 6196 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6197 break;
6198 default:
4c476991 6199 return -EOPNOTSUPP;
71bbc994 6200 }
026331c4 6201
f7ca38df 6202 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6203 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6204 return -EINVAL;
6205 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6206
6207 /*
6208 * We should wait on the channel for at least a minimum amount
6209 * of time (10ms) but no longer than the driver supports.
6210 */
6211 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6212 wait > rdev->wiphy.max_remain_on_channel_duration)
6213 return -EINVAL;
6214
f7ca38df
JB		 6215 }
6216
026331c4 6217 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 6218 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 6219 return -EINVAL;
252aa631 6220 channel_type_valid = true;
026331c4
JM		 6221 }
6222
f7ca38df
JB		 6223 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6224
7c4ef712
JB		 6225 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6226 return -EINVAL;
6227
e9f935e3
RM		 6228 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6229
026331c4
JM		 6230 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6231 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 6232 if (chan == NULL)
6233 return -EINVAL;
026331c4 6234
e247bd90
JB		 6235 if (!dont_wait_for_ack) {
6236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6237 if (!msg)
6238 return -ENOMEM;
026331c4 6239
15e47304 6240 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6241 NL80211_CMD_FRAME);
026331c4 6242
e247bd90
JB		 6243 if (IS_ERR(hdr)) {
6244 err = PTR_ERR(hdr);
6245 goto free_msg;
6246 }
026331c4 6247 }
e247bd90 6248
71bbc994 6249 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
f7ca38df 6250 channel_type_valid, wait,
2e161f78
JB		 6251 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6252 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6253 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6254 if (err)
6255 goto free_msg;
6256
e247bd90 6257 if (msg) {
9360ffd1
DM		 6258 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6259 goto nla_put_failure;
026331c4 6260
e247bd90
JB		 6261 genlmsg_end(msg, hdr);
6262 return genlmsg_reply(msg, info);
6263 }
6264
6265 return 0;
026331c4
JM		 6266
6267 nla_put_failure:
6268 err = -ENOBUFS;
6269 free_msg:
6270 nlmsg_free(msg);
026331c4
JM		 6271 return err;
6272}
6273
f7ca38df
JB		 6274static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6275{
6276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6277 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6278 u64 cookie;
6279
6280 if (!info->attrs[NL80211_ATTR_COOKIE])
6281 return -EINVAL;
6282
6283 if (!rdev->ops->mgmt_tx_cancel_wait)
6284 return -EOPNOTSUPP;
6285
71bbc994
JB		 6286 switch (wdev->iftype) {
6287 case NL80211_IFTYPE_STATION:
6288 case NL80211_IFTYPE_ADHOC:
6289 case NL80211_IFTYPE_P2P_CLIENT:
6290 case NL80211_IFTYPE_AP:
6291 case NL80211_IFTYPE_AP_VLAN:
6292 case NL80211_IFTYPE_P2P_GO:
98104fde 6293 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6294 break;
6295 default:
f7ca38df 6296 return -EOPNOTSUPP;
71bbc994 6297 }
f7ca38df
JB		 6298
6299 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6300
71bbc994 6301 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
f7ca38df
JB		 6302}
6303
ffb9eb3d
KV		 6304static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6305{
4c476991 6306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6307 struct wireless_dev *wdev;
4c476991 6308 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6309 u8 ps_state;
6310 bool state;
6311 int err;
6312
4c476991
JB		 6313 if (!info->attrs[NL80211_ATTR_PS_STATE])
6314 return -EINVAL;
ffb9eb3d
KV		 6315
6316 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6317
4c476991
JB		 6318 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6319 return -EINVAL;
ffb9eb3d
KV		 6320
6321 wdev = dev->ieee80211_ptr;
6322
4c476991
JB		 6323 if (!rdev->ops->set_power_mgmt)
6324 return -EOPNOTSUPP;
ffb9eb3d
KV		 6325
6326 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6327
6328 if (state == wdev->ps)
4c476991 6329 return 0;
ffb9eb3d 6330
4c476991
JB		 6331 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6332 wdev->ps_timeout);
6333 if (!err)
6334 wdev->ps = state;
ffb9eb3d
KV		 6335 return err;
6336}
6337
6338static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6339{
4c476991 6340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6341 enum nl80211_ps_state ps_state;
6342 struct wireless_dev *wdev;
4c476991 6343 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6344 struct sk_buff *msg;
6345 void *hdr;
6346 int err;
6347
ffb9eb3d
KV		 6348 wdev = dev->ieee80211_ptr;
6349
4c476991
JB		 6350 if (!rdev->ops->set_power_mgmt)
6351 return -EOPNOTSUPP;
ffb9eb3d
KV		 6352
6353 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6354 if (!msg)
6355 return -ENOMEM;
ffb9eb3d 6356
15e47304 6357 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6358 NL80211_CMD_GET_POWER_SAVE);
6359 if (!hdr) {
4c476991 6360 err = -ENOBUFS;
ffb9eb3d
KV		 6361 goto free_msg;
6362 }
6363
6364 if (wdev->ps)
6365 ps_state = NL80211_PS_ENABLED;
6366 else
6367 ps_state = NL80211_PS_DISABLED;
6368
9360ffd1
DM		 6369 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6370 goto nla_put_failure;
ffb9eb3d
KV		 6371
6372 genlmsg_end(msg, hdr);
4c476991 6373 return genlmsg_reply(msg, info);
ffb9eb3d 6374
4c476991 6375 nla_put_failure:
ffb9eb3d 6376 err = -ENOBUFS;
4c476991 6377 free_msg:
ffb9eb3d 6378 nlmsg_free(msg);
ffb9eb3d
KV		 6379 return err;
6380}
6381
d6dc1a38
JO		 6382static struct nla_policy
6383nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6384 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6385 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6386 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6387 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6388 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6389 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6390};
6391
84f10708
TP		 6392static int nl80211_set_cqm_txe(struct genl_info *info,
6393 u32 rate, u32 pkts, u32 intvl)
6394{
6395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6396 struct wireless_dev *wdev;
6397 struct net_device *dev = info->user_ptr[1];
6398
6399 if ((rate < 0 || rate > 100) ||
6400 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6401 return -EINVAL;
6402
6403 wdev = dev->ieee80211_ptr;
6404
6405 if (!rdev->ops->set_cqm_txe_config)
6406 return -EOPNOTSUPP;
6407
6408 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6409 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6410 return -EOPNOTSUPP;
6411
6412 return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
6413 rate, pkts, intvl);
6414}
6415
d6dc1a38
JO		 6416static int nl80211_set_cqm_rssi(struct genl_info *info,
6417 s32 threshold, u32 hysteresis)
6418{
4c476991 6419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6420 struct wireless_dev *wdev;
4c476991 6421 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6422
6423 if (threshold > 0)
6424 return -EINVAL;
6425
d6dc1a38
JO		 6426 wdev = dev->ieee80211_ptr;
6427
4c476991
JB		 6428 if (!rdev->ops->set_cqm_rssi_config)
6429 return -EOPNOTSUPP;
d6dc1a38 6430
074ac8df 6431 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6432 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6433 return -EOPNOTSUPP;
d6dc1a38 6434
4c476991
JB		 6435 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6436 threshold, hysteresis);
d6dc1a38
JO		 6437}
6438
6439static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6440{
6441 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6442 struct nlattr *cqm;
6443 int err;
6444
6445 cqm = info->attrs[NL80211_ATTR_CQM];
6446 if (!cqm) {
6447 err = -EINVAL;
6448 goto out;
6449 }
6450
6451 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6452 nl80211_attr_cqm_policy);
6453 if (err)
6454 goto out;
6455
6456 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6457 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6458 s32 threshold;
6459 u32 hysteresis;
6460 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6461 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6462 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6463 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6464 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6465 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6466 u32 rate, pkts, intvl;
6467 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6468 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6469 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6470 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6471 } else
6472 err = -EINVAL;
6473
6474out:
6475 return err;
6476}
6477
29cbe68c
JB		 6478static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6479{
6480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6481 struct net_device *dev = info->user_ptr[1];
6482 struct mesh_config cfg;
c80d545d 6483 struct mesh_setup setup;
29cbe68c
JB		 6484 int err;
6485
6486 /* start with default */
6487 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6488 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6489
24bdd9f4 6490 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6491 /* and parse parameters if given */
24bdd9f4 6492 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6493 if (err)
6494 return err;
6495 }
6496
6497 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6498 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6499 return -EINVAL;
6500
c80d545d
JC		 6501 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6502 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6503
4bb62344
CYY		 6504 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6505 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6506 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6507 return -EINVAL;
6508
c80d545d
JC		 6509 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6510 /* parse additional setup parameters if given */
6511 err = nl80211_parse_mesh_setup(info, &setup);
6512 if (err)
6513 return err;
6514 }
6515
cc1d2806
JB		 6516 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6517 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6518
6519 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6520 !nl80211_valid_channel_type(info, &channel_type))
6521 return -EINVAL;
6522
6523 setup.channel = rdev_freq_to_chan(rdev,
6524 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6525 channel_type);
6526 if (!setup.channel)
6527 return -EINVAL;
6528 setup.channel_type = channel_type;
6529 } else {
6530 /* cfg80211_join_mesh() will sort it out */
6531 setup.channel = NULL;
6532 }
6533
c80d545d 6534 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6535}
6536
6537static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6538{
6539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6540 struct net_device *dev = info->user_ptr[1];
6541
6542 return cfg80211_leave_mesh(rdev, dev);
6543}
6544
dfb89c56 6545#ifdef CONFIG_PM
ff1b6e69
JB		 6546static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6547{
6548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6549 struct sk_buff *msg;
6550 void *hdr;
6551
6552 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6553 return -EOPNOTSUPP;
6554
6555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6556 if (!msg)
6557 return -ENOMEM;
6558
15e47304 6559 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6560 NL80211_CMD_GET_WOWLAN);
6561 if (!hdr)
6562 goto nla_put_failure;
6563
6564 if (rdev->wowlan) {
6565 struct nlattr *nl_wowlan;
6566
6567 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6568 if (!nl_wowlan)
6569 goto nla_put_failure;
6570
9360ffd1
DM		 6571 if ((rdev->wowlan->any &&
6572 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6573 (rdev->wowlan->disconnect &&
6574 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6575 (rdev->wowlan->magic_pkt &&
6576 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6577 (rdev->wowlan->gtk_rekey_failure &&
6578 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6579 (rdev->wowlan->eap_identity_req &&
6580 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6581 (rdev->wowlan->four_way_handshake &&
6582 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6583 (rdev->wowlan->rfkill_release &&
6584 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6585 goto nla_put_failure;
ff1b6e69
JB		 6586 if (rdev->wowlan->n_patterns) {
6587 struct nlattr *nl_pats, *nl_pat;
6588 int i, pat_len;
6589
6590 nl_pats = nla_nest_start(msg,
6591 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6592 if (!nl_pats)
6593 goto nla_put_failure;
6594
6595 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6596 nl_pat = nla_nest_start(msg, i + 1);
6597 if (!nl_pat)
6598 goto nla_put_failure;
6599 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6600 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6601 DIV_ROUND_UP(pat_len, 8),
6602 rdev->wowlan->patterns[i].mask) ||
6603 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6604 pat_len,
6605 rdev->wowlan->patterns[i].pattern))
6606 goto nla_put_failure;
ff1b6e69
JB		 6607 nla_nest_end(msg, nl_pat);
6608 }
6609 nla_nest_end(msg, nl_pats);
6610 }
6611
6612 nla_nest_end(msg, nl_wowlan);
6613 }
6614
6615 genlmsg_end(msg, hdr);
6616 return genlmsg_reply(msg, info);
6617
6618nla_put_failure:
6619 nlmsg_free(msg);
6620 return -ENOBUFS;
6621}
6622
6623static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6624{
6625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6626 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6627 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6628 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6629 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6630 int err, i;
6d52563f 6631 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6632
6633 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6634 return -EOPNOTSUPP;
6635
ae33bd81
JB		 6636 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6637 cfg80211_rdev_free_wowlan(rdev);
6638 rdev->wowlan = NULL;
6639 goto set_wakeup;
6640 }
ff1b6e69
JB		 6641
6642 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6643 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6644 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6645 nl80211_wowlan_policy);
6646 if (err)
6647 return err;
6648
6649 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6650 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6651 return -EINVAL;
6652 new_triggers.any = true;
6653 }
6654
6655 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6656 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6657 return -EINVAL;
6658 new_triggers.disconnect = true;
6659 }
6660
6661 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6662 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6663 return -EINVAL;
6664 new_triggers.magic_pkt = true;
6665 }
6666
77dbbb13
JB		 6667 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6668 return -EINVAL;
6669
6670 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6671 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6672 return -EINVAL;
6673 new_triggers.gtk_rekey_failure = true;
6674 }
6675
6676 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6677 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6678 return -EINVAL;
6679 new_triggers.eap_identity_req = true;
6680 }
6681
6682 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6683 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6684 return -EINVAL;
6685 new_triggers.four_way_handshake = true;
6686 }
6687
6688 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6689 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6690 return -EINVAL;
6691 new_triggers.rfkill_release = true;
6692 }
6693
ff1b6e69
JB		 6694 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6695 struct nlattr *pat;
6696 int n_patterns = 0;
6697 int rem, pat_len, mask_len;
6698 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6699
6700 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6701 rem)
6702 n_patterns++;
6703 if (n_patterns > wowlan->n_patterns)
6704 return -EINVAL;
6705
6706 new_triggers.patterns = kcalloc(n_patterns,
6707 sizeof(new_triggers.patterns[0]),
6708 GFP_KERNEL);
6709 if (!new_triggers.patterns)
6710 return -ENOMEM;
6711
6712 new_triggers.n_patterns = n_patterns;
6713 i = 0;
6714
6715 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6716 rem) {
6717 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6718 nla_data(pat), nla_len(pat), NULL);
6719 err = -EINVAL;
6720 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6721 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6722 goto error;
6723 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6724 mask_len = DIV_ROUND_UP(pat_len, 8);
6725 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6726 mask_len)
6727 goto error;
6728 if (pat_len > wowlan->pattern_max_len ||
6729 pat_len < wowlan->pattern_min_len)
6730 goto error;
6731
6732 new_triggers.patterns[i].mask =
6733 kmalloc(mask_len + pat_len, GFP_KERNEL);
6734 if (!new_triggers.patterns[i].mask) {
6735 err = -ENOMEM;
6736 goto error;
6737 }
6738 new_triggers.patterns[i].pattern =
6739 new_triggers.patterns[i].mask + mask_len;
6740 memcpy(new_triggers.patterns[i].mask,
6741 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6742 mask_len);
6743 new_triggers.patterns[i].pattern_len = pat_len;
6744 memcpy(new_triggers.patterns[i].pattern,
6745 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6746 pat_len);
6747 i++;
6748 }
6749 }
6750
ae33bd81
JB		 6751 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6752 if (!ntrig) {
6753 err = -ENOMEM;
6754 goto error;
ff1b6e69 6755 }
ae33bd81
JB		 6756 cfg80211_rdev_free_wowlan(rdev);
6757 rdev->wowlan = ntrig;
ff1b6e69 6758
ae33bd81 6759 set_wakeup:
6d52563f
JB		 6760 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6761 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6762
ff1b6e69
JB		 6763 return 0;
6764 error:
6765 for (i = 0; i < new_triggers.n_patterns; i++)
6766 kfree(new_triggers.patterns[i].mask);
6767 kfree(new_triggers.patterns);
6768 return err;
6769}
dfb89c56 6770#endif
ff1b6e69 6771
e5497d76
JB		 6772static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6773{
6774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6775 struct net_device *dev = info->user_ptr[1];
6776 struct wireless_dev *wdev = dev->ieee80211_ptr;
6777 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6778 struct cfg80211_gtk_rekey_data rekey_data;
6779 int err;
6780
6781 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6782 return -EINVAL;
6783
6784 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6785 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6786 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6787 nl80211_rekey_policy);
6788 if (err)
6789 return err;
6790
6791 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6792 return -ERANGE;
6793 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6794 return -ERANGE;
6795 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6796 return -ERANGE;
6797
6798 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6799 NL80211_KEK_LEN);
6800 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6801 NL80211_KCK_LEN);
6802 memcpy(rekey_data.replay_ctr,
6803 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6804 NL80211_REPLAY_CTR_LEN);
6805
6806 wdev_lock(wdev);
6807 if (!wdev->current_bss) {
6808 err = -ENOTCONN;
6809 goto out;
6810 }
6811
6812 if (!rdev->ops->set_rekey_data) {
6813 err = -EOPNOTSUPP;
6814 goto out;
6815 }
6816
6817 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6818 out:
6819 wdev_unlock(wdev);
6820 return err;
6821}
6822
28946da7
JB		 6823static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6824 struct genl_info *info)
6825{
6826 struct net_device *dev = info->user_ptr[1];
6827 struct wireless_dev *wdev = dev->ieee80211_ptr;
6828
6829 if (wdev->iftype != NL80211_IFTYPE_AP &&
6830 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6831 return -EINVAL;
6832
15e47304 6833 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 6834 return -EBUSY;
6835
15e47304 6836 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 6837 return 0;
6838}
6839
7f6cf311
JB		 6840static int nl80211_probe_client(struct sk_buff *skb,
6841 struct genl_info *info)
6842{
6843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6844 struct net_device *dev = info->user_ptr[1];
6845 struct wireless_dev *wdev = dev->ieee80211_ptr;
6846 struct sk_buff *msg;
6847 void *hdr;
6848 const u8 *addr;
6849 u64 cookie;
6850 int err;
6851
6852 if (wdev->iftype != NL80211_IFTYPE_AP &&
6853 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6854 return -EOPNOTSUPP;
6855
6856 if (!info->attrs[NL80211_ATTR_MAC])
6857 return -EINVAL;
6858
6859 if (!rdev->ops->probe_client)
6860 return -EOPNOTSUPP;
6861
6862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6863 if (!msg)
6864 return -ENOMEM;
6865
15e47304 6866 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 6867 NL80211_CMD_PROBE_CLIENT);
6868
6869 if (IS_ERR(hdr)) {
6870 err = PTR_ERR(hdr);
6871 goto free_msg;
6872 }
6873
6874 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6875
6876 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6877 if (err)
6878 goto free_msg;
6879
9360ffd1
DM		 6880 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6881 goto nla_put_failure;
7f6cf311
JB		 6882
6883 genlmsg_end(msg, hdr);
6884
6885 return genlmsg_reply(msg, info);
6886
6887 nla_put_failure:
6888 err = -ENOBUFS;
6889 free_msg:
6890 nlmsg_free(msg);
6891 return err;
6892}
6893
5e760230
JB		 6894static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6895{
6896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6897
6898 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6899 return -EOPNOTSUPP;
6900
15e47304 6901 if (rdev->ap_beacons_nlportid)
5e760230
JB		 6902 return -EBUSY;
6903
15e47304 6904 rdev->ap_beacons_nlportid = info->snd_portid;
5e760230
JB		 6905
6906 return 0;
6907}
6908
98104fde
JB		 6909static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
6910{
6911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6912 struct wireless_dev *wdev = info->user_ptr[1];
6913 int err;
6914
6915 if (!rdev->ops->start_p2p_device)
6916 return -EOPNOTSUPP;
6917
6918 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6919 return -EOPNOTSUPP;
6920
6921 if (wdev->p2p_started)
6922 return 0;
6923
6924 mutex_lock(&rdev->devlist_mtx);
6925 err = cfg80211_can_add_interface(rdev, wdev->iftype);
6926 mutex_unlock(&rdev->devlist_mtx);
6927 if (err)
6928 return err;
6929
6930 err = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);
6931 if (err)
6932 return err;
6933
6934 wdev->p2p_started = true;
6935 mutex_lock(&rdev->devlist_mtx);
6936 rdev->opencount++;
6937 mutex_unlock(&rdev->devlist_mtx);
6938
6939 return 0;
6940}
6941
6942static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
6943{
6944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6945 struct wireless_dev *wdev = info->user_ptr[1];
6946
6947 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6948 return -EOPNOTSUPP;
6949
6950 if (!rdev->ops->stop_p2p_device)
6951 return -EOPNOTSUPP;
6952
6953 if (!wdev->p2p_started)
6954 return 0;
6955
6956 rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
6957 wdev->p2p_started = false;
6958
6959 mutex_lock(&rdev->devlist_mtx);
6960 rdev->opencount--;
6961 mutex_unlock(&rdev->devlist_mtx);
6962
6963 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
6964 rdev->scan_req->aborted = true;
6965 ___cfg80211_scan_done(rdev, true);
6966 }
6967
6968 return 0;
6969}
6970
4c476991
JB		 6971#define NL80211_FLAG_NEED_WIPHY 0x01
6972#define NL80211_FLAG_NEED_NETDEV 0x02
6973#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6974#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6975#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6976 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 6977#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 6978/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 6979#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6980 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6981
6982static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6983 struct genl_info *info)
6984{
6985 struct cfg80211_registered_device *rdev;
89a54e48 6986 struct wireless_dev *wdev;
4c476991 6987 struct net_device *dev;
4c476991
JB		 6988 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6989
6990 if (rtnl)
6991 rtnl_lock();
6992
6993 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 6994 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 6995 if (IS_ERR(rdev)) {
6996 if (rtnl)
6997 rtnl_unlock();
6998 return PTR_ERR(rdev);
6999 }
7000 info->user_ptr[0] = rdev;
1bf614ef
JB		 7001 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7002 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7003 mutex_lock(&cfg80211_mutex);
7004 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7005 info->attrs);
7006 if (IS_ERR(wdev)) {
7007 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7008 if (rtnl)
7009 rtnl_unlock();
89a54e48 7010 return PTR_ERR(wdev);
4c476991 7011 }
89a54e48 7012
89a54e48
JB		 7013 dev = wdev->netdev;
7014 rdev = wiphy_to_dev(wdev->wiphy);
7015
1bf614ef
JB		 7016 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7017 if (!dev) {
7018 mutex_unlock(&cfg80211_mutex);
7019 if (rtnl)
7020 rtnl_unlock();
7021 return -EINVAL;
7022 }
7023
7024 info->user_ptr[1] = dev;
7025 } else {
7026 info->user_ptr[1] = wdev;
41265714 7027 }
1bf614ef
JB		 7028
7029 if (dev) {
7030 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7031 !netif_running(dev)) {
7032 mutex_unlock(&cfg80211_mutex);
7033 if (rtnl)
7034 rtnl_unlock();
7035 return -ENETDOWN;
7036 }
7037
7038 dev_hold(dev);
98104fde
JB		 7039 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7040 if (!wdev->p2p_started) {
7041 mutex_unlock(&cfg80211_mutex);
7042 if (rtnl)
7043 rtnl_unlock();
7044 return -ENETDOWN;
7045 }
41265714 7046 }
89a54e48 7047
89a54e48
JB		 7048 cfg80211_lock_rdev(rdev);
7049
7050 mutex_unlock(&cfg80211_mutex);
7051
4c476991 7052 info->user_ptr[0] = rdev;
4c476991
JB		 7053 }
7054
7055 return 0;
7056}
7057
7058static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7059 struct genl_info *info)
7060{
7061 if (info->user_ptr[0])
7062 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7063 if (info->user_ptr[1]) {
7064 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7065 struct wireless_dev *wdev = info->user_ptr[1];
7066
7067 if (wdev->netdev)
7068 dev_put(wdev->netdev);
7069 } else {
7070 dev_put(info->user_ptr[1]);
7071 }
7072 }
4c476991
JB		 7073 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7074 rtnl_unlock();
7075}
7076
55682965
JB		 7077static struct genl_ops nl80211_ops[] = {
7078 {
7079 .cmd = NL80211_CMD_GET_WIPHY,
7080 .doit = nl80211_get_wiphy,
7081 .dumpit = nl80211_dump_wiphy,
7082 .policy = nl80211_policy,
7083 /* can be retrieved by unprivileged users */
4c476991 7084 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7085 },
7086 {
7087 .cmd = NL80211_CMD_SET_WIPHY,
7088 .doit = nl80211_set_wiphy,
7089 .policy = nl80211_policy,
7090 .flags = GENL_ADMIN_PERM,
4c476991 7091 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7092 },
7093 {
7094 .cmd = NL80211_CMD_GET_INTERFACE,
7095 .doit = nl80211_get_interface,
7096 .dumpit = nl80211_dump_interface,
7097 .policy = nl80211_policy,
7098 /* can be retrieved by unprivileged users */
72fb2abc 7099 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7100 },
7101 {
7102 .cmd = NL80211_CMD_SET_INTERFACE,
7103 .doit = nl80211_set_interface,
7104 .policy = nl80211_policy,
7105 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7106 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7107 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7108 },
7109 {
7110 .cmd = NL80211_CMD_NEW_INTERFACE,
7111 .doit = nl80211_new_interface,
7112 .policy = nl80211_policy,
7113 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7114 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7115 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7116 },
7117 {
7118 .cmd = NL80211_CMD_DEL_INTERFACE,
7119 .doit = nl80211_del_interface,
7120 .policy = nl80211_policy,
41ade00f 7121 .flags = GENL_ADMIN_PERM,
84efbb84 7122 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7123 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7124 },
7125 {
7126 .cmd = NL80211_CMD_GET_KEY,
7127 .doit = nl80211_get_key,
7128 .policy = nl80211_policy,
7129 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7131 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7132 },
7133 {
7134 .cmd = NL80211_CMD_SET_KEY,
7135 .doit = nl80211_set_key,
7136 .policy = nl80211_policy,
7137 .flags = GENL_ADMIN_PERM,
41265714 7138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7139 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7140 },
7141 {
7142 .cmd = NL80211_CMD_NEW_KEY,
7143 .doit = nl80211_new_key,
7144 .policy = nl80211_policy,
7145 .flags = GENL_ADMIN_PERM,
41265714 7146 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7147 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7148 },
7149 {
7150 .cmd = NL80211_CMD_DEL_KEY,
7151 .doit = nl80211_del_key,
7152 .policy = nl80211_policy,
55682965 7153 .flags = GENL_ADMIN_PERM,
41265714 7154 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7155 NL80211_FLAG_NEED_RTNL,
55682965 7156 },
ed1b6cc7
JB		 7157 {
7158 .cmd = NL80211_CMD_SET_BEACON,
7159 .policy = nl80211_policy,
7160 .flags = GENL_ADMIN_PERM,
8860020e 7161 .doit = nl80211_set_beacon,
2b5f8b0b 7162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7163 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7164 },
7165 {
8860020e 7166 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7167 .policy = nl80211_policy,
7168 .flags = GENL_ADMIN_PERM,
8860020e 7169 .doit = nl80211_start_ap,
2b5f8b0b 7170 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7171 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7172 },
7173 {
8860020e 7174 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7175 .policy = nl80211_policy,
7176 .flags = GENL_ADMIN_PERM,
8860020e 7177 .doit = nl80211_stop_ap,
2b5f8b0b 7178 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7179 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7180 },
5727ef1b
JB		 7181 {
7182 .cmd = NL80211_CMD_GET_STATION,
7183 .doit = nl80211_get_station,
2ec600d6 7184 .dumpit = nl80211_dump_station,
5727ef1b 7185 .policy = nl80211_policy,
4c476991
JB		 7186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7187 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7188 },
7189 {
7190 .cmd = NL80211_CMD_SET_STATION,
7191 .doit = nl80211_set_station,
7192 .policy = nl80211_policy,
7193 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7195 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7196 },
7197 {
7198 .cmd = NL80211_CMD_NEW_STATION,
7199 .doit = nl80211_new_station,
7200 .policy = nl80211_policy,
7201 .flags = GENL_ADMIN_PERM,
41265714 7202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7203 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7204 },
7205 {
7206 .cmd = NL80211_CMD_DEL_STATION,
7207 .doit = nl80211_del_station,
7208 .policy = nl80211_policy,
2ec600d6 7209 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7211 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7212 },
7213 {
7214 .cmd = NL80211_CMD_GET_MPATH,
7215 .doit = nl80211_get_mpath,
7216 .dumpit = nl80211_dump_mpath,
7217 .policy = nl80211_policy,
7218 .flags = GENL_ADMIN_PERM,
41265714 7219 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7220 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7221 },
7222 {
7223 .cmd = NL80211_CMD_SET_MPATH,
7224 .doit = nl80211_set_mpath,
7225 .policy = nl80211_policy,
7226 .flags = GENL_ADMIN_PERM,
41265714 7227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7228 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7229 },
7230 {
7231 .cmd = NL80211_CMD_NEW_MPATH,
7232 .doit = nl80211_new_mpath,
7233 .policy = nl80211_policy,
7234 .flags = GENL_ADMIN_PERM,
41265714 7235 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7236 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7237 },
7238 {
7239 .cmd = NL80211_CMD_DEL_MPATH,
7240 .doit = nl80211_del_mpath,
7241 .policy = nl80211_policy,
9f1ba906 7242 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7243 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7244 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7245 },
7246 {
7247 .cmd = NL80211_CMD_SET_BSS,
7248 .doit = nl80211_set_bss,
7249 .policy = nl80211_policy,
b2e1b302 7250 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7251 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7252 NL80211_FLAG_NEED_RTNL,
b2e1b302 7253 },
f130347c
LR		 7254 {
7255 .cmd = NL80211_CMD_GET_REG,
7256 .doit = nl80211_get_reg,
7257 .policy = nl80211_policy,
7258 /* can be retrieved by unprivileged users */
7259 },
b2e1b302
LR		 7260 {
7261 .cmd = NL80211_CMD_SET_REG,
7262 .doit = nl80211_set_reg,
7263 .policy = nl80211_policy,
7264 .flags = GENL_ADMIN_PERM,
7265 },
7266 {
7267 .cmd = NL80211_CMD_REQ_SET_REG,
7268 .doit = nl80211_req_set_reg,
7269 .policy = nl80211_policy,
93da9cc1 7270 .flags = GENL_ADMIN_PERM,
7271 },
7272 {
24bdd9f4
JC		 7273 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7274 .doit = nl80211_get_mesh_config,
93da9cc1 7275 .policy = nl80211_policy,
7276 /* can be retrieved by unprivileged users */
2b5f8b0b 7277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7278 NL80211_FLAG_NEED_RTNL,
93da9cc1 7279 },
7280 {
24bdd9f4
JC		 7281 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7282 .doit = nl80211_update_mesh_config,
93da9cc1 7283 .policy = nl80211_policy,
9aed3cc1 7284 .flags = GENL_ADMIN_PERM,
29cbe68c 7285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7286 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7287 },
2a519311
JB		 7288 {
7289 .cmd = NL80211_CMD_TRIGGER_SCAN,
7290 .doit = nl80211_trigger_scan,
7291 .policy = nl80211_policy,
7292 .flags = GENL_ADMIN_PERM,
fd014284 7293 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7294 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7295 },
7296 {
7297 .cmd = NL80211_CMD_GET_SCAN,
7298 .policy = nl80211_policy,
7299 .dumpit = nl80211_dump_scan,
7300 },
807f8a8c
LC		 7301 {
7302 .cmd = NL80211_CMD_START_SCHED_SCAN,
7303 .doit = nl80211_start_sched_scan,
7304 .policy = nl80211_policy,
7305 .flags = GENL_ADMIN_PERM,
7306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7307 NL80211_FLAG_NEED_RTNL,
7308 },
7309 {
7310 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7311 .doit = nl80211_stop_sched_scan,
7312 .policy = nl80211_policy,
7313 .flags = GENL_ADMIN_PERM,
7314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7315 NL80211_FLAG_NEED_RTNL,
7316 },
636a5d36
JM		 7317 {
7318 .cmd = NL80211_CMD_AUTHENTICATE,
7319 .doit = nl80211_authenticate,
7320 .policy = nl80211_policy,
7321 .flags = GENL_ADMIN_PERM,
41265714 7322 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7323 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7324 },
7325 {
7326 .cmd = NL80211_CMD_ASSOCIATE,
7327 .doit = nl80211_associate,
7328 .policy = nl80211_policy,
7329 .flags = GENL_ADMIN_PERM,
41265714 7330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7331 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7332 },
7333 {
7334 .cmd = NL80211_CMD_DEAUTHENTICATE,
7335 .doit = nl80211_deauthenticate,
7336 .policy = nl80211_policy,
7337 .flags = GENL_ADMIN_PERM,
41265714 7338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7339 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7340 },
7341 {
7342 .cmd = NL80211_CMD_DISASSOCIATE,
7343 .doit = nl80211_disassociate,
7344 .policy = nl80211_policy,
7345 .flags = GENL_ADMIN_PERM,
41265714 7346 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7347 NL80211_FLAG_NEED_RTNL,
636a5d36 7348 },
04a773ad
JB		 7349 {
7350 .cmd = NL80211_CMD_JOIN_IBSS,
7351 .doit = nl80211_join_ibss,
7352 .policy = nl80211_policy,
7353 .flags = GENL_ADMIN_PERM,
41265714 7354 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7355 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7356 },
7357 {
7358 .cmd = NL80211_CMD_LEAVE_IBSS,
7359 .doit = nl80211_leave_ibss,
7360 .policy = nl80211_policy,
7361 .flags = GENL_ADMIN_PERM,
41265714 7362 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7363 NL80211_FLAG_NEED_RTNL,
04a773ad 7364 },
aff89a9b
JB		 7365#ifdef CONFIG_NL80211_TESTMODE
7366 {
7367 .cmd = NL80211_CMD_TESTMODE,
7368 .doit = nl80211_testmode_do,
71063f0e 7369 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7370 .policy = nl80211_policy,
7371 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7372 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7373 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7374 },
7375#endif
b23aa676
SO		 7376 {
7377 .cmd = NL80211_CMD_CONNECT,
7378 .doit = nl80211_connect,
7379 .policy = nl80211_policy,
7380 .flags = GENL_ADMIN_PERM,
41265714 7381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7382 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7383 },
7384 {
7385 .cmd = NL80211_CMD_DISCONNECT,
7386 .doit = nl80211_disconnect,
7387 .policy = nl80211_policy,
7388 .flags = GENL_ADMIN_PERM,
41265714 7389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7390 NL80211_FLAG_NEED_RTNL,
b23aa676 7391 },
463d0183
JB		 7392 {
7393 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7394 .doit = nl80211_wiphy_netns,
7395 .policy = nl80211_policy,
7396 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7397 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7398 NL80211_FLAG_NEED_RTNL,
463d0183 7399 },
61fa713c
HS		 7400 {
7401 .cmd = NL80211_CMD_GET_SURVEY,
7402 .policy = nl80211_policy,
7403 .dumpit = nl80211_dump_survey,
7404 },
67fbb16b
SO		 7405 {
7406 .cmd = NL80211_CMD_SET_PMKSA,
7407 .doit = nl80211_setdel_pmksa,
7408 .policy = nl80211_policy,
7409 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7411 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7412 },
7413 {
7414 .cmd = NL80211_CMD_DEL_PMKSA,
7415 .doit = nl80211_setdel_pmksa,
7416 .policy = nl80211_policy,
7417 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7419 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7420 },
7421 {
7422 .cmd = NL80211_CMD_FLUSH_PMKSA,
7423 .doit = nl80211_flush_pmksa,
7424 .policy = nl80211_policy,
7425 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7427 NL80211_FLAG_NEED_RTNL,
67fbb16b 7428 },
9588bbd5
JM		 7429 {
7430 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7431 .doit = nl80211_remain_on_channel,
7432 .policy = nl80211_policy,
7433 .flags = GENL_ADMIN_PERM,
71bbc994 7434 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7435 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7436 },
7437 {
7438 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7439 .doit = nl80211_cancel_remain_on_channel,
7440 .policy = nl80211_policy,
7441 .flags = GENL_ADMIN_PERM,
71bbc994 7442 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7443 NL80211_FLAG_NEED_RTNL,
9588bbd5 7444 },
13ae75b1
JM		 7445 {
7446 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7447 .doit = nl80211_set_tx_bitrate_mask,
7448 .policy = nl80211_policy,
7449 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7450 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7451 NL80211_FLAG_NEED_RTNL,
13ae75b1 7452 },
026331c4 7453 {
2e161f78
JB		 7454 .cmd = NL80211_CMD_REGISTER_FRAME,
7455 .doit = nl80211_register_mgmt,
026331c4
JM		 7456 .policy = nl80211_policy,
7457 .flags = GENL_ADMIN_PERM,
71bbc994 7458 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7459 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7460 },
7461 {
2e161f78
JB		 7462 .cmd = NL80211_CMD_FRAME,
7463 .doit = nl80211_tx_mgmt,
026331c4 7464 .policy = nl80211_policy,
f7ca38df 7465 .flags = GENL_ADMIN_PERM,
71bbc994 7466 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7467 NL80211_FLAG_NEED_RTNL,
7468 },
7469 {
7470 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7471 .doit = nl80211_tx_mgmt_cancel_wait,
7472 .policy = nl80211_policy,
026331c4 7473 .flags = GENL_ADMIN_PERM,
71bbc994 7474 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7475 NL80211_FLAG_NEED_RTNL,
026331c4 7476 },
ffb9eb3d
KV		 7477 {
7478 .cmd = NL80211_CMD_SET_POWER_SAVE,
7479 .doit = nl80211_set_power_save,
7480 .policy = nl80211_policy,
7481 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7482 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7483 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7484 },
7485 {
7486 .cmd = NL80211_CMD_GET_POWER_SAVE,
7487 .doit = nl80211_get_power_save,
7488 .policy = nl80211_policy,
7489 /* can be retrieved by unprivileged users */
4c476991
JB		 7490 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7491 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7492 },
d6dc1a38
JO		 7493 {
7494 .cmd = NL80211_CMD_SET_CQM,
7495 .doit = nl80211_set_cqm,
7496 .policy = nl80211_policy,
7497 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7498 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7499 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7500 },
f444de05
JB		 7501 {
7502 .cmd = NL80211_CMD_SET_CHANNEL,
7503 .doit = nl80211_set_channel,
7504 .policy = nl80211_policy,
7505 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7506 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7507 NL80211_FLAG_NEED_RTNL,
f444de05 7508 },
e8347eba
BJ		 7509 {
7510 .cmd = NL80211_CMD_SET_WDS_PEER,
7511 .doit = nl80211_set_wds_peer,
7512 .policy = nl80211_policy,
7513 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7514 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7515 NL80211_FLAG_NEED_RTNL,
e8347eba 7516 },
29cbe68c
JB		 7517 {
7518 .cmd = NL80211_CMD_JOIN_MESH,
7519 .doit = nl80211_join_mesh,
7520 .policy = nl80211_policy,
7521 .flags = GENL_ADMIN_PERM,
7522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7523 NL80211_FLAG_NEED_RTNL,
7524 },
7525 {
7526 .cmd = NL80211_CMD_LEAVE_MESH,
7527 .doit = nl80211_leave_mesh,
7528 .policy = nl80211_policy,
7529 .flags = GENL_ADMIN_PERM,
7530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7531 NL80211_FLAG_NEED_RTNL,
7532 },
dfb89c56 7533#ifdef CONFIG_PM
ff1b6e69
JB		 7534 {
7535 .cmd = NL80211_CMD_GET_WOWLAN,
7536 .doit = nl80211_get_wowlan,
7537 .policy = nl80211_policy,
7538 /* can be retrieved by unprivileged users */
7539 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7540 NL80211_FLAG_NEED_RTNL,
7541 },
7542 {
7543 .cmd = NL80211_CMD_SET_WOWLAN,
7544 .doit = nl80211_set_wowlan,
7545 .policy = nl80211_policy,
7546 .flags = GENL_ADMIN_PERM,
7547 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7548 NL80211_FLAG_NEED_RTNL,
7549 },
dfb89c56 7550#endif
e5497d76
JB		 7551 {
7552 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7553 .doit = nl80211_set_rekey_data,
7554 .policy = nl80211_policy,
7555 .flags = GENL_ADMIN_PERM,
7556 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7557 NL80211_FLAG_NEED_RTNL,
7558 },
109086ce
AN		 7559 {
7560 .cmd = NL80211_CMD_TDLS_MGMT,
7561 .doit = nl80211_tdls_mgmt,
7562 .policy = nl80211_policy,
7563 .flags = GENL_ADMIN_PERM,
7564 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7565 NL80211_FLAG_NEED_RTNL,
7566 },
7567 {
7568 .cmd = NL80211_CMD_TDLS_OPER,
7569 .doit = nl80211_tdls_oper,
7570 .policy = nl80211_policy,
7571 .flags = GENL_ADMIN_PERM,
7572 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7573 NL80211_FLAG_NEED_RTNL,
7574 },
28946da7
JB		 7575 {
7576 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7577 .doit = nl80211_register_unexpected_frame,
7578 .policy = nl80211_policy,
7579 .flags = GENL_ADMIN_PERM,
7580 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7581 NL80211_FLAG_NEED_RTNL,
7582 },
7f6cf311
JB		 7583 {
7584 .cmd = NL80211_CMD_PROBE_CLIENT,
7585 .doit = nl80211_probe_client,
7586 .policy = nl80211_policy,
7587 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7588 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7589 NL80211_FLAG_NEED_RTNL,
7590 },
5e760230
JB		 7591 {
7592 .cmd = NL80211_CMD_REGISTER_BEACONS,
7593 .doit = nl80211_register_beacons,
7594 .policy = nl80211_policy,
7595 .flags = GENL_ADMIN_PERM,
7596 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7597 NL80211_FLAG_NEED_RTNL,
7598 },
1d9d9213
SW		 7599 {
7600 .cmd = NL80211_CMD_SET_NOACK_MAP,
7601 .doit = nl80211_set_noack_map,
7602 .policy = nl80211_policy,
7603 .flags = GENL_ADMIN_PERM,
7604 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7605 NL80211_FLAG_NEED_RTNL,
7606 },
98104fde
JB		 7607 {
7608 .cmd = NL80211_CMD_START_P2P_DEVICE,
7609 .doit = nl80211_start_p2p_device,
7610 .policy = nl80211_policy,
7611 .flags = GENL_ADMIN_PERM,
7612 .internal_flags = NL80211_FLAG_NEED_WDEV |
7613 NL80211_FLAG_NEED_RTNL,
7614 },
7615 {
7616 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7617 .doit = nl80211_stop_p2p_device,
7618 .policy = nl80211_policy,
7619 .flags = GENL_ADMIN_PERM,
7620 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7621 NL80211_FLAG_NEED_RTNL,
7622 },
55682965 7623};
9588bbd5 7624
6039f6d2
JM		 7625static struct genl_multicast_group nl80211_mlme_mcgrp = {
7626 .name = "mlme",
7627};
55682965
JB		 7628
7629/* multicast groups */
7630static struct genl_multicast_group nl80211_config_mcgrp = {
7631 .name = "config",
7632};
2a519311
JB		 7633static struct genl_multicast_group nl80211_scan_mcgrp = {
7634 .name = "scan",
7635};
73d54c9e
LR		 7636static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7637 .name = "regulatory",
7638};
55682965
JB		 7639
7640/* notification functions */
7641
7642void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7643{
7644 struct sk_buff *msg;
7645
fd2120ca 7646 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7647 if (!msg)
7648 return;
7649
7650 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7651 nlmsg_free(msg);
7652 return;
7653 }
7654
463d0183
JB		 7655 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7656 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7657}
7658
362a415d
JB		 7659static int nl80211_add_scan_req(struct sk_buff *msg,
7660 struct cfg80211_registered_device *rdev)
7661{
7662 struct cfg80211_scan_request *req = rdev->scan_req;
7663 struct nlattr *nest;
7664 int i;
7665
667503dd
JB		 7666 ASSERT_RDEV_LOCK(rdev);
7667
362a415d
JB		 7668 if (WARN_ON(!req))
7669 return 0;
7670
7671 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7672 if (!nest)
7673 goto nla_put_failure;
9360ffd1
DM		 7674 for (i = 0; i < req->n_ssids; i++) {
7675 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7676 goto nla_put_failure;
7677 }
362a415d
JB		 7678 nla_nest_end(msg, nest);
7679
7680 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7681 if (!nest)
7682 goto nla_put_failure;
9360ffd1
DM		 7683 for (i = 0; i < req->n_channels; i++) {
7684 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7685 goto nla_put_failure;
7686 }
362a415d
JB		 7687 nla_nest_end(msg, nest);
7688
9360ffd1
DM		 7689 if (req->ie &&
7690 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7691 goto nla_put_failure;
362a415d 7692
ed473771
SL		 7693 if (req->flags)
7694 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7695
362a415d
JB		 7696 return 0;
7697 nla_put_failure:
7698 return -ENOBUFS;
7699}
7700
a538e2d5
JB		 7701static int nl80211_send_scan_msg(struct sk_buff *msg,
7702 struct cfg80211_registered_device *rdev,
fd014284 7703 struct wireless_dev *wdev,
15e47304 7704 u32 portid, u32 seq, int flags,
a538e2d5 7705 u32 cmd)
2a519311
JB		 7706{
7707 void *hdr;
7708
15e47304 7709 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7710 if (!hdr)
7711 return -1;
7712
9360ffd1 7713 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7714 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7715 wdev->netdev->ifindex)) ||
7716 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7717 goto nla_put_failure;
2a519311 7718
362a415d
JB		 7719 /* ignore errors and send incomplete event anyway */
7720 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7721
7722 return genlmsg_end(msg, hdr);
7723
7724 nla_put_failure:
7725 genlmsg_cancel(msg, hdr);
7726 return -EMSGSIZE;
7727}
7728
807f8a8c
LC		 7729static int
7730nl80211_send_sched_scan_msg(struct sk_buff *msg,
7731 struct cfg80211_registered_device *rdev,
7732 struct net_device *netdev,
15e47304 7733 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7734{
7735 void *hdr;
7736
15e47304 7737 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7738 if (!hdr)
7739 return -1;
7740
9360ffd1
DM		 7741 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7742 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7743 goto nla_put_failure;
807f8a8c
LC		 7744
7745 return genlmsg_end(msg, hdr);
7746
7747 nla_put_failure:
7748 genlmsg_cancel(msg, hdr);
7749 return -EMSGSIZE;
7750}
7751
a538e2d5 7752void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7753 struct wireless_dev *wdev)
a538e2d5
JB		 7754{
7755 struct sk_buff *msg;
7756
58050fce 7757 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7758 if (!msg)
7759 return;
7760
fd014284 7761 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7762 NL80211_CMD_TRIGGER_SCAN) < 0) {
7763 nlmsg_free(msg);
7764 return;
7765 }
7766
463d0183
JB		 7767 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7768 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7769}
7770
2a519311 7771void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 7772 struct wireless_dev *wdev)
2a519311
JB		 7773{
7774 struct sk_buff *msg;
7775
fd2120ca 7776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7777 if (!msg)
7778 return;
7779
fd014284 7780 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7781 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7782 nlmsg_free(msg);
7783 return;
7784 }
7785
463d0183
JB		 7786 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7787 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7788}
7789
7790void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 7791 struct wireless_dev *wdev)
2a519311
JB		 7792{
7793 struct sk_buff *msg;
7794
fd2120ca 7795 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7796 if (!msg)
7797 return;
7798
fd014284 7799 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7800 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7801 nlmsg_free(msg);
7802 return;
7803 }
7804
463d0183
JB		 7805 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7806 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7807}
7808
807f8a8c
LC		 7809void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7810 struct net_device *netdev)
7811{
7812 struct sk_buff *msg;
7813
7814 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7815 if (!msg)
7816 return;
7817
7818 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7819 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7820 nlmsg_free(msg);
7821 return;
7822 }
7823
7824 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7825 nl80211_scan_mcgrp.id, GFP_KERNEL);
7826}
7827
7828void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7829 struct net_device *netdev, u32 cmd)
7830{
7831 struct sk_buff *msg;
7832
58050fce 7833 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 7834 if (!msg)
7835 return;
7836
7837 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7838 nlmsg_free(msg);
7839 return;
7840 }
7841
7842 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7843 nl80211_scan_mcgrp.id, GFP_KERNEL);
7844}
7845
73d54c9e
LR		 7846/*
7847 * This can happen on global regulatory changes or device specific settings
7848 * based on custom world regulatory domains.
7849 */
7850void nl80211_send_reg_change_event(struct regulatory_request *request)
7851{
7852 struct sk_buff *msg;
7853 void *hdr;
7854
fd2120ca 7855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7856 if (!msg)
7857 return;
7858
7859 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7860 if (!hdr) {
7861 nlmsg_free(msg);
7862 return;
7863 }
7864
7865 /* Userspace can always count this one always being set */
9360ffd1
DM		 7866 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7867 goto nla_put_failure;
7868
7869 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7870 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7871 NL80211_REGDOM_TYPE_WORLD))
7872 goto nla_put_failure;
7873 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7874 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7875 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7876 goto nla_put_failure;
7877 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7878 request->intersect) {
7879 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7880 NL80211_REGDOM_TYPE_INTERSECTION))
7881 goto nla_put_failure;
7882 } else {
7883 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7884 NL80211_REGDOM_TYPE_COUNTRY) ||
7885 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7886 request->alpha2))
7887 goto nla_put_failure;
7888 }
7889
7890 if (wiphy_idx_valid(request->wiphy_idx) &&
7891 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7892 goto nla_put_failure;
73d54c9e 7893
3b7b72ee 7894 genlmsg_end(msg, hdr);
73d54c9e 7895
bc43b28c 7896 rcu_read_lock();
463d0183 7897 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7898 GFP_ATOMIC);
7899 rcu_read_unlock();
73d54c9e
LR		 7900
7901 return;
7902
7903nla_put_failure:
7904 genlmsg_cancel(msg, hdr);
7905 nlmsg_free(msg);
7906}
7907
6039f6d2
JM		 7908static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7909 struct net_device *netdev,
7910 const u8 *buf, size_t len,
e6d6e342 7911 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7912{
7913 struct sk_buff *msg;
7914 void *hdr;
7915
e6d6e342 7916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7917 if (!msg)
7918 return;
7919
7920 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7921 if (!hdr) {
7922 nlmsg_free(msg);
7923 return;
7924 }
7925
9360ffd1
DM		 7926 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7927 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7928 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7929 goto nla_put_failure;
6039f6d2 7930
3b7b72ee 7931 genlmsg_end(msg, hdr);
6039f6d2 7932
463d0183
JB		 7933 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7934 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7935 return;
7936
7937 nla_put_failure:
7938 genlmsg_cancel(msg, hdr);
7939 nlmsg_free(msg);
7940}
7941
7942void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7943 struct net_device *netdev, const u8 *buf,
7944 size_t len, gfp_t gfp)
6039f6d2
JM		 7945{
7946 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7947 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7948}
7949
7950void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7951 struct net_device *netdev, const u8 *buf,
e6d6e342 7952 size_t len, gfp_t gfp)
6039f6d2 7953{
e6d6e342
JB		 7954 nl80211_send_mlme_event(rdev, netdev, buf, len,
7955 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7956}
7957
53b46b84 7958void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7959 struct net_device *netdev, const u8 *buf,
7960 size_t len, gfp_t gfp)
6039f6d2
JM		 7961{
7962 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7963 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7964}
7965
53b46b84
JM		 7966void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7967 struct net_device *netdev, const u8 *buf,
e6d6e342 7968 size_t len, gfp_t gfp)
6039f6d2
JM		 7969{
7970 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7971 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7972}
7973
cf4e594e
JM		 7974void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7975 struct net_device *netdev, const u8 *buf,
7976 size_t len, gfp_t gfp)
7977{
7978 nl80211_send_mlme_event(rdev, netdev, buf, len,
7979 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7980}
7981
7982void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7983 struct net_device *netdev, const u8 *buf,
7984 size_t len, gfp_t gfp)
7985{
7986 nl80211_send_mlme_event(rdev, netdev, buf, len,
7987 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7988}
7989
1b06bb40
LR		 7990static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7991 struct net_device *netdev, int cmd,
e6d6e342 7992 const u8 *addr, gfp_t gfp)
1965c853
JM		 7993{
7994 struct sk_buff *msg;
7995 void *hdr;
7996
e6d6e342 7997 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7998 if (!msg)
7999 return;
8000
8001 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8002 if (!hdr) {
8003 nlmsg_free(msg);
8004 return;
8005 }
8006
9360ffd1
DM		 8007 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8008 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8009 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8010 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8011 goto nla_put_failure;
1965c853 8012
3b7b72ee 8013 genlmsg_end(msg, hdr);
1965c853 8014
463d0183
JB		 8015 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8016 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8017 return;
8018
8019 nla_put_failure:
8020 genlmsg_cancel(msg, hdr);
8021 nlmsg_free(msg);
8022}
8023
8024void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8025 struct net_device *netdev, const u8 *addr,
8026 gfp_t gfp)
1965c853
JM		 8027{
8028 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8029 addr, gfp);
1965c853
JM		 8030}
8031
8032void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8033 struct net_device *netdev, const u8 *addr,
8034 gfp_t gfp)
1965c853 8035{
e6d6e342
JB		 8036 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8037 addr, gfp);
1965c853
JM		 8038}
8039
b23aa676
SO		 8040void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8041 struct net_device *netdev, const u8 *bssid,
8042 const u8 *req_ie, size_t req_ie_len,
8043 const u8 *resp_ie, size_t resp_ie_len,
8044 u16 status, gfp_t gfp)
8045{
8046 struct sk_buff *msg;
8047 void *hdr;
8048
58050fce 8049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8050 if (!msg)
8051 return;
8052
8053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8054 if (!hdr) {
8055 nlmsg_free(msg);
8056 return;
8057 }
8058
9360ffd1
DM		 8059 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8060 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8061 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8062 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8063 (req_ie &&
8064 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8065 (resp_ie &&
8066 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8067 goto nla_put_failure;
b23aa676 8068
3b7b72ee 8069 genlmsg_end(msg, hdr);
b23aa676 8070
463d0183
JB		 8071 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8072 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8073 return;
8074
8075 nla_put_failure:
8076 genlmsg_cancel(msg, hdr);
8077 nlmsg_free(msg);
8078
8079}
8080
8081void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8082 struct net_device *netdev, const u8 *bssid,
8083 const u8 *req_ie, size_t req_ie_len,
8084 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8085{
8086 struct sk_buff *msg;
8087 void *hdr;
8088
58050fce 8089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8090 if (!msg)
8091 return;
8092
8093 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8094 if (!hdr) {
8095 nlmsg_free(msg);
8096 return;
8097 }
8098
9360ffd1
DM		 8099 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8100 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8101 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8102 (req_ie &&
8103 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8104 (resp_ie &&
8105 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8106 goto nla_put_failure;
b23aa676 8107
3b7b72ee 8108 genlmsg_end(msg, hdr);
b23aa676 8109
463d0183
JB		 8110 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8111 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8112 return;
8113
8114 nla_put_failure:
8115 genlmsg_cancel(msg, hdr);
8116 nlmsg_free(msg);
8117
8118}
8119
8120void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8121 struct net_device *netdev, u16 reason,
667503dd 8122 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8123{
8124 struct sk_buff *msg;
8125 void *hdr;
8126
58050fce 8127 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8128 if (!msg)
8129 return;
8130
8131 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8132 if (!hdr) {
8133 nlmsg_free(msg);
8134 return;
8135 }
8136
9360ffd1
DM		 8137 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8138 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8139 (from_ap && reason &&
8140 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8141 (from_ap &&
8142 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8143 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8144 goto nla_put_failure;
b23aa676 8145
3b7b72ee 8146 genlmsg_end(msg, hdr);
b23aa676 8147
463d0183
JB		 8148 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8149 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8150 return;
8151
8152 nla_put_failure:
8153 genlmsg_cancel(msg, hdr);
8154 nlmsg_free(msg);
8155
8156}
8157
04a773ad
JB		 8158void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8159 struct net_device *netdev, const u8 *bssid,
8160 gfp_t gfp)
8161{
8162 struct sk_buff *msg;
8163 void *hdr;
8164
fd2120ca 8165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8166 if (!msg)
8167 return;
8168
8169 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8170 if (!hdr) {
8171 nlmsg_free(msg);
8172 return;
8173 }
8174
9360ffd1
DM		 8175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8176 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8177 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8178 goto nla_put_failure;
04a773ad 8179
3b7b72ee 8180 genlmsg_end(msg, hdr);
04a773ad 8181
463d0183
JB		 8182 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8183 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8184 return;
8185
8186 nla_put_failure:
8187 genlmsg_cancel(msg, hdr);
8188 nlmsg_free(msg);
8189}
8190
c93b5e71
JC		 8191void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8192 struct net_device *netdev,
8193 const u8 *macaddr, const u8* ie, u8 ie_len,
8194 gfp_t gfp)
8195{
8196 struct sk_buff *msg;
8197 void *hdr;
8198
8199 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8200 if (!msg)
8201 return;
8202
8203 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8204 if (!hdr) {
8205 nlmsg_free(msg);
8206 return;
8207 }
8208
9360ffd1
DM		 8209 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8210 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8211 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8212 (ie_len && ie &&
8213 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8214 goto nla_put_failure;
c93b5e71 8215
3b7b72ee 8216 genlmsg_end(msg, hdr);
c93b5e71
JC		 8217
8218 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8219 nl80211_mlme_mcgrp.id, gfp);
8220 return;
8221
8222 nla_put_failure:
8223 genlmsg_cancel(msg, hdr);
8224 nlmsg_free(msg);
8225}
8226
a3b8b056
JM		 8227void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8228 struct net_device *netdev, const u8 *addr,
8229 enum nl80211_key_type key_type, int key_id,
e6d6e342 8230 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8231{
8232 struct sk_buff *msg;
8233 void *hdr;
8234
e6d6e342 8235 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8236 if (!msg)
8237 return;
8238
8239 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8240 if (!hdr) {
8241 nlmsg_free(msg);
8242 return;
8243 }
8244
9360ffd1
DM		 8245 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8246 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8247 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8248 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8249 (key_id != -1 &&
8250 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8251 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8252 goto nla_put_failure;
a3b8b056 8253
3b7b72ee 8254 genlmsg_end(msg, hdr);
a3b8b056 8255
463d0183
JB		 8256 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8257 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8258 return;
8259
8260 nla_put_failure:
8261 genlmsg_cancel(msg, hdr);
8262 nlmsg_free(msg);
8263}
8264
6bad8766
LR		 8265void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8266 struct ieee80211_channel *channel_before,
8267 struct ieee80211_channel *channel_after)
8268{
8269 struct sk_buff *msg;
8270 void *hdr;
8271 struct nlattr *nl_freq;
8272
fd2120ca 8273 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8274 if (!msg)
8275 return;
8276
8277 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8278 if (!hdr) {
8279 nlmsg_free(msg);
8280 return;
8281 }
8282
8283 /*
8284 * Since we are applying the beacon hint to a wiphy we know its
8285 * wiphy_idx is valid
8286 */
9360ffd1
DM		 8287 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8288 goto nla_put_failure;
6bad8766
LR		 8289
8290 /* Before */
8291 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8292 if (!nl_freq)
8293 goto nla_put_failure;
8294 if (nl80211_msg_put_channel(msg, channel_before))
8295 goto nla_put_failure;
8296 nla_nest_end(msg, nl_freq);
8297
8298 /* After */
8299 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8300 if (!nl_freq)
8301 goto nla_put_failure;
8302 if (nl80211_msg_put_channel(msg, channel_after))
8303 goto nla_put_failure;
8304 nla_nest_end(msg, nl_freq);
8305
3b7b72ee 8306 genlmsg_end(msg, hdr);
6bad8766 8307
463d0183
JB		 8308 rcu_read_lock();
8309 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8310 GFP_ATOMIC);
8311 rcu_read_unlock();
6bad8766
LR		 8312
8313 return;
8314
8315nla_put_failure:
8316 genlmsg_cancel(msg, hdr);
8317 nlmsg_free(msg);
8318}
8319
9588bbd5
JM		 8320static void nl80211_send_remain_on_chan_event(
8321 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8322 struct wireless_dev *wdev, u64 cookie,
9588bbd5
JM		 8323 struct ieee80211_channel *chan,
8324 enum nl80211_channel_type channel_type,
8325 unsigned int duration, gfp_t gfp)
8326{
8327 struct sk_buff *msg;
8328 void *hdr;
8329
8330 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8331 if (!msg)
8332 return;
8333
8334 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8335 if (!hdr) {
8336 nlmsg_free(msg);
8337 return;
8338 }
8339
9360ffd1 8340 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8341 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8342 wdev->netdev->ifindex)) ||
00f53350 8343 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 8344 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8345 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8346 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8347 goto nla_put_failure;
9588bbd5 8348
9360ffd1
DM		 8349 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8350 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8351 goto nla_put_failure;
9588bbd5 8352
3b7b72ee 8353 genlmsg_end(msg, hdr);
9588bbd5
JM		 8354
8355 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8356 nl80211_mlme_mcgrp.id, gfp);
8357 return;
8358
8359 nla_put_failure:
8360 genlmsg_cancel(msg, hdr);
8361 nlmsg_free(msg);
8362}
8363
8364void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8365 struct wireless_dev *wdev, u64 cookie,
9588bbd5
JM		 8366 struct ieee80211_channel *chan,
8367 enum nl80211_channel_type channel_type,
8368 unsigned int duration, gfp_t gfp)
8369{
8370 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8371 rdev, wdev, cookie, chan,
9588bbd5
JM		 8372 channel_type, duration, gfp);
8373}
8374
8375void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8376 struct cfg80211_registered_device *rdev,
8377 struct wireless_dev *wdev,
9588bbd5
JM		 8378 u64 cookie, struct ieee80211_channel *chan,
8379 enum nl80211_channel_type channel_type, gfp_t gfp)
8380{
8381 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
71bbc994 8382 rdev, wdev, cookie, chan,
9588bbd5
JM		 8383 channel_type, 0, gfp);
8384}
8385
98b62183
JB		 8386void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8387 struct net_device *dev, const u8 *mac_addr,
8388 struct station_info *sinfo, gfp_t gfp)
8389{
8390 struct sk_buff *msg;
8391
58050fce 8392 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8393 if (!msg)
8394 return;
8395
66266b3a
JL		 8396 if (nl80211_send_station(msg, 0, 0, 0,
8397 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8398 nlmsg_free(msg);
8399 return;
8400 }
8401
8402 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8403 nl80211_mlme_mcgrp.id, gfp);
8404}
8405
ec15e68b
JM		 8406void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8407 struct net_device *dev, const u8 *mac_addr,
8408 gfp_t gfp)
8409{
8410 struct sk_buff *msg;
8411 void *hdr;
8412
58050fce 8413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8414 if (!msg)
8415 return;
8416
8417 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8418 if (!hdr) {
8419 nlmsg_free(msg);
8420 return;
8421 }
8422
9360ffd1
DM		 8423 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8424 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8425 goto nla_put_failure;
ec15e68b 8426
3b7b72ee 8427 genlmsg_end(msg, hdr);
ec15e68b
JM		 8428
8429 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8430 nl80211_mlme_mcgrp.id, gfp);
8431 return;
8432
8433 nla_put_failure:
8434 genlmsg_cancel(msg, hdr);
8435 nlmsg_free(msg);
8436}
8437
ed44a951
PP		 8438void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8439 struct net_device *dev, const u8 *mac_addr,
8440 enum nl80211_connect_failed_reason reason,
8441 gfp_t gfp)
8442{
8443 struct sk_buff *msg;
8444 void *hdr;
8445
8446 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8447 if (!msg)
8448 return;
8449
8450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8451 if (!hdr) {
8452 nlmsg_free(msg);
8453 return;
8454 }
8455
8456 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8457 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8458 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8459 goto nla_put_failure;
8460
8461 genlmsg_end(msg, hdr);
8462
8463 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8464 nl80211_mlme_mcgrp.id, gfp);
8465 return;
8466
8467 nla_put_failure:
8468 genlmsg_cancel(msg, hdr);
8469 nlmsg_free(msg);
8470}
8471
b92ab5d8
JB		 8472static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8473 const u8 *addr, gfp_t gfp)
28946da7
JB		 8474{
8475 struct wireless_dev *wdev = dev->ieee80211_ptr;
8476 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8477 struct sk_buff *msg;
8478 void *hdr;
8479 int err;
15e47304 8480 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8481
15e47304 8482 if (!nlportid)
28946da7
JB		 8483 return false;
8484
8485 msg = nlmsg_new(100, gfp);
8486 if (!msg)
8487 return true;
8488
b92ab5d8 8489 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8490 if (!hdr) {
8491 nlmsg_free(msg);
8492 return true;
8493 }
8494
9360ffd1
DM		 8495 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8496 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8497 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8498 goto nla_put_failure;
28946da7
JB		 8499
8500 err = genlmsg_end(msg, hdr);
8501 if (err < 0) {
8502 nlmsg_free(msg);
8503 return true;
8504 }
8505
15e47304 8506 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8507 return true;
8508
8509 nla_put_failure:
8510 genlmsg_cancel(msg, hdr);
8511 nlmsg_free(msg);
8512 return true;
8513}
8514
b92ab5d8
JB		 8515bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8516{
8517 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8518 addr, gfp);
8519}
8520
8521bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8522 const u8 *addr, gfp_t gfp)
8523{
8524 return __nl80211_unexpected_frame(dev,
8525 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8526 addr, gfp);
8527}
8528
2e161f78 8529int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8530 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8531 int freq, int sig_dbm,
8532 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8533{
71bbc994 8534 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8535 struct sk_buff *msg;
8536 void *hdr;
026331c4
JM		 8537
8538 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8539 if (!msg)
8540 return -ENOMEM;
8541
2e161f78 8542 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8543 if (!hdr) {
8544 nlmsg_free(msg);
8545 return -ENOMEM;
8546 }
8547
9360ffd1 8548 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8549 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8550 netdev->ifindex)) ||
9360ffd1
DM		 8551 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8552 (sig_dbm &&
8553 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8554 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8555 goto nla_put_failure;
026331c4 8556
3b7b72ee 8557 genlmsg_end(msg, hdr);
026331c4 8558
15e47304 8559 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8560
8561 nla_put_failure:
8562 genlmsg_cancel(msg, hdr);
8563 nlmsg_free(msg);
8564 return -ENOBUFS;
8565}
8566
2e161f78 8567void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8568 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8569 const u8 *buf, size_t len, bool ack,
8570 gfp_t gfp)
026331c4 8571{
71bbc994 8572 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8573 struct sk_buff *msg;
8574 void *hdr;
8575
8576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8577 if (!msg)
8578 return;
8579
2e161f78 8580 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8581 if (!hdr) {
8582 nlmsg_free(msg);
8583 return;
8584 }
8585
9360ffd1 8586 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8587 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8588 netdev->ifindex)) ||
9360ffd1
DM		 8589 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8590 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8591 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8592 goto nla_put_failure;
026331c4 8593
3b7b72ee 8594 genlmsg_end(msg, hdr);
026331c4
JM		 8595
8596 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8597 return;
8598
8599 nla_put_failure:
8600 genlmsg_cancel(msg, hdr);
8601 nlmsg_free(msg);
8602}
8603
d6dc1a38
JO		 8604void
8605nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8606 struct net_device *netdev,
8607 enum nl80211_cqm_rssi_threshold_event rssi_event,
8608 gfp_t gfp)
8609{
8610 struct sk_buff *msg;
8611 struct nlattr *pinfoattr;
8612 void *hdr;
8613
58050fce 8614 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8615 if (!msg)
8616 return;
8617
8618 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8619 if (!hdr) {
8620 nlmsg_free(msg);
8621 return;
8622 }
8623
9360ffd1
DM		 8624 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8625 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8626 goto nla_put_failure;
d6dc1a38
JO		 8627
8628 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8629 if (!pinfoattr)
8630 goto nla_put_failure;
8631
9360ffd1
DM		 8632 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8633 rssi_event))
8634 goto nla_put_failure;
d6dc1a38
JO		 8635
8636 nla_nest_end(msg, pinfoattr);
8637
3b7b72ee 8638 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8639
8640 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8641 nl80211_mlme_mcgrp.id, gfp);
8642 return;
8643
8644 nla_put_failure:
8645 genlmsg_cancel(msg, hdr);
8646 nlmsg_free(msg);
8647}
8648
e5497d76
JB		 8649void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8650 struct net_device *netdev, const u8 *bssid,
8651 const u8 *replay_ctr, gfp_t gfp)
8652{
8653 struct sk_buff *msg;
8654 struct nlattr *rekey_attr;
8655 void *hdr;
8656
58050fce 8657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8658 if (!msg)
8659 return;
8660
8661 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8662 if (!hdr) {
8663 nlmsg_free(msg);
8664 return;
8665 }
8666
9360ffd1
DM		 8667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8668 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8669 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8670 goto nla_put_failure;
e5497d76
JB		 8671
8672 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8673 if (!rekey_attr)
8674 goto nla_put_failure;
8675
9360ffd1
DM		 8676 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8677 NL80211_REPLAY_CTR_LEN, replay_ctr))
8678 goto nla_put_failure;
e5497d76
JB		 8679
8680 nla_nest_end(msg, rekey_attr);
8681
3b7b72ee 8682 genlmsg_end(msg, hdr);
e5497d76
JB		 8683
8684 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8685 nl80211_mlme_mcgrp.id, gfp);
8686 return;
8687
8688 nla_put_failure:
8689 genlmsg_cancel(msg, hdr);
8690 nlmsg_free(msg);
8691}
8692
c9df56b4
JM		 8693void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8694 struct net_device *netdev, int index,
8695 const u8 *bssid, bool preauth, gfp_t gfp)
8696{
8697 struct sk_buff *msg;
8698 struct nlattr *attr;
8699 void *hdr;
8700
58050fce 8701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8702 if (!msg)
8703 return;
8704
8705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8706 if (!hdr) {
8707 nlmsg_free(msg);
8708 return;
8709 }
8710
9360ffd1
DM		 8711 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8713 goto nla_put_failure;
c9df56b4
JM		 8714
8715 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8716 if (!attr)
8717 goto nla_put_failure;
8718
9360ffd1
DM		 8719 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8720 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8721 (preauth &&
8722 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8723 goto nla_put_failure;
c9df56b4
JM		 8724
8725 nla_nest_end(msg, attr);
8726
3b7b72ee 8727 genlmsg_end(msg, hdr);
c9df56b4
JM		 8728
8729 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8730 nl80211_mlme_mcgrp.id, gfp);
8731 return;
8732
8733 nla_put_failure:
8734 genlmsg_cancel(msg, hdr);
8735 nlmsg_free(msg);
8736}
8737
5314526b
TP		 8738void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8739 struct net_device *netdev, int freq,
8740 enum nl80211_channel_type type, gfp_t gfp)
8741{
8742 struct sk_buff *msg;
8743 void *hdr;
8744
58050fce 8745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8746 if (!msg)
8747 return;
8748
8749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8750 if (!hdr) {
8751 nlmsg_free(msg);
8752 return;
8753 }
8754
7eab0f64
JL		 8755 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8756 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8757 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8758 goto nla_put_failure;
5314526b
TP		 8759
8760 genlmsg_end(msg, hdr);
8761
8762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8763 nl80211_mlme_mcgrp.id, gfp);
8764 return;
8765
8766 nla_put_failure:
8767 genlmsg_cancel(msg, hdr);
8768 nlmsg_free(msg);
8769}
8770
84f10708
TP		 8771void
8772nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8773 struct net_device *netdev, const u8 *peer,
8774 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8775{
8776 struct sk_buff *msg;
8777 struct nlattr *pinfoattr;
8778 void *hdr;
8779
8780 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8781 if (!msg)
8782 return;
8783
8784 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8785 if (!hdr) {
8786 nlmsg_free(msg);
8787 return;
8788 }
8789
8790 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8791 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8792 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8793 goto nla_put_failure;
8794
8795 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8796 if (!pinfoattr)
8797 goto nla_put_failure;
8798
8799 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8800 goto nla_put_failure;
8801
8802 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8803 goto nla_put_failure;
8804
8805 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8806 goto nla_put_failure;
8807
8808 nla_nest_end(msg, pinfoattr);
8809
8810 genlmsg_end(msg, hdr);
8811
8812 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8813 nl80211_mlme_mcgrp.id, gfp);
8814 return;
8815
8816 nla_put_failure:
8817 genlmsg_cancel(msg, hdr);
8818 nlmsg_free(msg);
8819}
8820
c063dbf5
JB		 8821void
8822nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8823 struct net_device *netdev, const u8 *peer,
8824 u32 num_packets, gfp_t gfp)
8825{
8826 struct sk_buff *msg;
8827 struct nlattr *pinfoattr;
8828 void *hdr;
8829
58050fce 8830 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 8831 if (!msg)
8832 return;
8833
8834 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8835 if (!hdr) {
8836 nlmsg_free(msg);
8837 return;
8838 }
8839
9360ffd1
DM		 8840 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8841 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8842 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8843 goto nla_put_failure;
c063dbf5
JB		 8844
8845 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8846 if (!pinfoattr)
8847 goto nla_put_failure;
8848
9360ffd1
DM		 8849 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8850 goto nla_put_failure;
c063dbf5
JB		 8851
8852 nla_nest_end(msg, pinfoattr);
8853
3b7b72ee 8854 genlmsg_end(msg, hdr);
c063dbf5
JB		 8855
8856 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8857 nl80211_mlme_mcgrp.id, gfp);
8858 return;
8859
8860 nla_put_failure:
8861 genlmsg_cancel(msg, hdr);
8862 nlmsg_free(msg);
8863}
8864
7f6cf311
JB		 8865void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8866 u64 cookie, bool acked, gfp_t gfp)
8867{
8868 struct wireless_dev *wdev = dev->ieee80211_ptr;
8869 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8870 struct sk_buff *msg;
8871 void *hdr;
8872 int err;
8873
58050fce 8874 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7f6cf311
JB		 8875 if (!msg)
8876 return;
8877
8878 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
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, dev->ifindex) ||
8886 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8887 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8888 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8889 goto nla_put_failure;
7f6cf311
JB		 8890
8891 err = genlmsg_end(msg, hdr);
8892 if (err < 0) {
8893 nlmsg_free(msg);
8894 return;
8895 }
8896
8897 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8898 nl80211_mlme_mcgrp.id, gfp);
8899 return;
8900
8901 nla_put_failure:
8902 genlmsg_cancel(msg, hdr);
8903 nlmsg_free(msg);
8904}
8905EXPORT_SYMBOL(cfg80211_probe_status);
8906
5e760230
JB		 8907void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8908 const u8 *frame, size_t len,
804483e9 8909 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8910{
8911 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8912 struct sk_buff *msg;
8913 void *hdr;
15e47304 8914 u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid);
5e760230 8915
15e47304 8916 if (!nlportid)
5e760230
JB		 8917 return;
8918
8919 msg = nlmsg_new(len + 100, gfp);
8920 if (!msg)
8921 return;
8922
8923 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8924 if (!hdr) {
8925 nlmsg_free(msg);
8926 return;
8927 }
8928
9360ffd1
DM		 8929 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8930 (freq &&
8931 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8932 (sig_dbm &&
8933 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8934 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8935 goto nla_put_failure;
5e760230
JB		 8936
8937 genlmsg_end(msg, hdr);
8938
15e47304 8939 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
5e760230
JB		 8940 return;
8941
8942 nla_put_failure:
8943 genlmsg_cancel(msg, hdr);
8944 nlmsg_free(msg);
8945}
8946EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8947
026331c4
JM		 8948static int nl80211_netlink_notify(struct notifier_block * nb,
8949 unsigned long state,
8950 void *_notify)
8951{
8952 struct netlink_notify *notify = _notify;
8953 struct cfg80211_registered_device *rdev;
8954 struct wireless_dev *wdev;
8955
8956 if (state != NETLINK_URELEASE)
8957 return NOTIFY_DONE;
8958
8959 rcu_read_lock();
8960
5e760230 8961 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 8962 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304
EB		 8963 cfg80211_mlme_unregister_socket(wdev, notify->portid);
8964 if (rdev->ap_beacons_nlportid == notify->portid)
8965 rdev->ap_beacons_nlportid = 0;
5e760230 8966 }
026331c4
JM		 8967
8968 rcu_read_unlock();
8969
8970 return NOTIFY_DONE;
8971}
8972
8973static struct notifier_block nl80211_netlink_notifier = {
8974 .notifier_call = nl80211_netlink_notify,
8975};
8976
55682965
JB		 8977/* initialisation/exit functions */
8978
8979int nl80211_init(void)
8980{
0d63cbb5 8981 int err;
55682965 8982
0d63cbb5
MM		 8983 err = genl_register_family_with_ops(&nl80211_fam,
8984 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8985 if (err)
8986 return err;
8987
55682965
JB		 8988 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8989 if (err)
8990 goto err_out;
8991
2a519311
JB		 8992 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8993 if (err)
8994 goto err_out;
8995
73d54c9e
LR		 8996 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8997 if (err)
8998 goto err_out;
8999
6039f6d2
JM		 9000 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9001 if (err)
9002 goto err_out;
9003
aff89a9b
JB		 9004#ifdef CONFIG_NL80211_TESTMODE
9005 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9006 if (err)
9007 goto err_out;
9008#endif
9009
026331c4
JM		 9010 err = netlink_register_notifier(&nl80211_netlink_notifier);
9011 if (err)
9012 goto err_out;
9013
55682965
JB		 9014 return 0;
9015 err_out:
9016 genl_unregister_family(&nl80211_fam);
9017 return err;
9018}
9019
9020void nl80211_exit(void)
9021{
026331c4 9022 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9023 genl_unregister_family(&nl80211_fam);
9024}
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