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cfg80211: code rearrangement to avoid forward declarations
[deliverable/linux.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
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
ed473771
SL		 4371 if (info->attrs[NL80211_ATTR_SCAN_FLAGS])
4372 request->flags = nla_get_u32(
4373 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4374
e9f935e3
RM		 4375 request->no_cck =
4376 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4377
fd014284 4378 request->wdev = wdev;
79c97e97 4379 request->wiphy = &rdev->wiphy;
2a519311 4380
79c97e97 4381 rdev->scan_req = request;
fd014284 4382 err = rdev->ops->scan(&rdev->wiphy, request);
2a519311 4383
463d0183 4384 if (!err) {
fd014284
JB		 4385 nl80211_send_scan_start(rdev, wdev);
4386 if (wdev->netdev)
4387 dev_hold(wdev->netdev);
4c476991 4388 } else {
2a519311 4389 out_free:
79c97e97 4390 rdev->scan_req = NULL;
2a519311
JB		 4391 kfree(request);
4392 }
3b85875a 4393
2a519311
JB		 4394 return err;
4395}
4396
807f8a8c
LC		 4397static int nl80211_start_sched_scan(struct sk_buff *skb,
4398 struct genl_info *info)
4399{
4400 struct cfg80211_sched_scan_request *request;
4401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4402 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4403 struct nlattr *attr;
4404 struct wiphy *wiphy;
a1f1c21c 4405 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4406 u32 interval;
807f8a8c
LC		 4407 enum ieee80211_band band;
4408 size_t ie_len;
a1f1c21c 4409 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4410
4411 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4412 !rdev->ops->sched_scan_start)
4413 return -EOPNOTSUPP;
4414
4415 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4416 return -EINVAL;
4417
bbe6ad6d
LC		 4418 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4419 return -EINVAL;
4420
4421 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4422 if (interval == 0)
4423 return -EINVAL;
4424
807f8a8c
LC		 4425 wiphy = &rdev->wiphy;
4426
4427 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4428 n_channels = validate_scan_freqs(
4429 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4430 if (!n_channels)
4431 return -EINVAL;
4432 } else {
4433 n_channels = 0;
4434
4435 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4436 if (wiphy->bands[band])
4437 n_channels += wiphy->bands[band]->n_channels;
4438 }
4439
4440 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4441 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4442 tmp)
4443 n_ssids++;
4444
93b6aa69 4445 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4446 return -EINVAL;
4447
a1f1c21c
LC		 4448 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4449 nla_for_each_nested(attr,
4450 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4451 tmp)
4452 n_match_sets++;
4453
4454 if (n_match_sets > wiphy->max_match_sets)
4455 return -EINVAL;
4456
807f8a8c
LC		 4457 if (info->attrs[NL80211_ATTR_IE])
4458 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4459 else
4460 ie_len = 0;
4461
5a865bad 4462 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4463 return -EINVAL;
4464
c10841ca
LC		 4465 mutex_lock(&rdev->sched_scan_mtx);
4466
4467 if (rdev->sched_scan_req) {
4468 err = -EINPROGRESS;
4469 goto out;
4470 }
4471
807f8a8c 4472 request = kzalloc(sizeof(*request)
a2cd43c5 4473 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4474 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4475 + sizeof(*request->channels) * n_channels
807f8a8c 4476 + ie_len, GFP_KERNEL);
c10841ca
LC		 4477 if (!request) {
4478 err = -ENOMEM;
4479 goto out;
4480 }
807f8a8c
LC		 4481
4482 if (n_ssids)
4483 request->ssids = (void *)&request->channels[n_channels];
4484 request->n_ssids = n_ssids;
4485 if (ie_len) {
4486 if (request->ssids)
4487 request->ie = (void *)(request->ssids + n_ssids);
4488 else
4489 request->ie = (void *)(request->channels + n_channels);
4490 }
4491
a1f1c21c
LC		 4492 if (n_match_sets) {
4493 if (request->ie)
4494 request->match_sets = (void *)(request->ie + ie_len);
4495 else if (request->ssids)
4496 request->match_sets =
4497 (void *)(request->ssids + n_ssids);
4498 else
4499 request->match_sets =
4500 (void *)(request->channels + n_channels);
4501 }
4502 request->n_match_sets = n_match_sets;
4503
807f8a8c
LC		 4504 i = 0;
4505 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4506 /* user specified, bail out if channel not found */
4507 nla_for_each_nested(attr,
4508 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4509 tmp) {
4510 struct ieee80211_channel *chan;
4511
4512 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4513
4514 if (!chan) {
4515 err = -EINVAL;
4516 goto out_free;
4517 }
4518
4519 /* ignore disabled channels */
4520 if (chan->flags & IEEE80211_CHAN_DISABLED)
4521 continue;
4522
4523 request->channels[i] = chan;
4524 i++;
4525 }
4526 } else {
4527 /* all channels */
4528 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4529 int j;
4530 if (!wiphy->bands[band])
4531 continue;
4532 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4533 struct ieee80211_channel *chan;
4534
4535 chan = &wiphy->bands[band]->channels[j];
4536
4537 if (chan->flags & IEEE80211_CHAN_DISABLED)
4538 continue;
4539
4540 request->channels[i] = chan;
4541 i++;
4542 }
4543 }
4544 }
4545
4546 if (!i) {
4547 err = -EINVAL;
4548 goto out_free;
4549 }
4550
4551 request->n_channels = i;
4552
4553 i = 0;
4554 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4555 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4556 tmp) {
57a27e1d 4557 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4558 err = -EINVAL;
4559 goto out_free;
4560 }
57a27e1d 4561 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4562 memcpy(request->ssids[i].ssid, nla_data(attr),
4563 nla_len(attr));
807f8a8c
LC		 4564 i++;
4565 }
4566 }
4567
a1f1c21c
LC		 4568 i = 0;
4569 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4570 nla_for_each_nested(attr,
4571 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4572 tmp) {
88e920b4 4573 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4574
4575 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4576 nla_data(attr), nla_len(attr),
4577 nl80211_match_policy);
4a4ab0d7 4578 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4579 if (ssid) {
4580 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4581 err = -EINVAL;
4582 goto out_free;
4583 }
4584 memcpy(request->match_sets[i].ssid.ssid,
4585 nla_data(ssid), nla_len(ssid));
4586 request->match_sets[i].ssid.ssid_len =
4587 nla_len(ssid);
4588 }
88e920b4
TP		 4589 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4590 if (rssi)
4591 request->rssi_thold = nla_get_u32(rssi);
4592 else
4593 request->rssi_thold =
4594 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4595 i++;
4596 }
4597 }
4598
807f8a8c
LC		 4599 if (info->attrs[NL80211_ATTR_IE]) {
4600 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4601 memcpy((void *)request->ie,
4602 nla_data(info->attrs[NL80211_ATTR_IE]),
4603 request->ie_len);
4604 }
4605
ed473771
SL		 4606 if (info->attrs[NL80211_ATTR_SCAN_FLAGS])
4607 request->flags = nla_get_u32(
4608 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4609
807f8a8c
LC		 4610 request->dev = dev;
4611 request->wiphy = &rdev->wiphy;
bbe6ad6d 4612 request->interval = interval;
807f8a8c
LC		 4613
4614 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4615 if (!err) {
4616 rdev->sched_scan_req = request;
4617 nl80211_send_sched_scan(rdev, dev,
4618 NL80211_CMD_START_SCHED_SCAN);
4619 goto out;
4620 }
4621
4622out_free:
4623 kfree(request);
4624out:
c10841ca 4625 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4626 return err;
4627}
4628
4629static int nl80211_stop_sched_scan(struct sk_buff *skb,
4630 struct genl_info *info)
4631{
4632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4633 int err;
807f8a8c
LC		 4634
4635 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4636 !rdev->ops->sched_scan_stop)
4637 return -EOPNOTSUPP;
4638
c10841ca
LC		 4639 mutex_lock(&rdev->sched_scan_mtx);
4640 err = __cfg80211_stop_sched_scan(rdev, false);
4641 mutex_unlock(&rdev->sched_scan_mtx);
4642
4643 return err;
807f8a8c
LC		 4644}
4645
9720bb3a
JB		 4646static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4647 u32 seq, int flags,
2a519311 4648 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4649 struct wireless_dev *wdev,
4650 struct cfg80211_internal_bss *intbss)
2a519311 4651{
48ab905d 4652 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4653 void *hdr;
4654 struct nlattr *bss;
48ab905d
JB		 4655
4656 ASSERT_WDEV_LOCK(wdev);
2a519311 4657
15e47304 4658 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4659 NL80211_CMD_NEW_SCAN_RESULTS);
4660 if (!hdr)
4661 return -1;
4662
9720bb3a
JB		 4663 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4664
9360ffd1
DM		 4665 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4666 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4667 goto nla_put_failure;
2a519311
JB		 4668
4669 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4670 if (!bss)
4671 goto nla_put_failure;
9360ffd1
DM		 4672 if ((!is_zero_ether_addr(res->bssid) &&
4673 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4674 (res->information_elements && res->len_information_elements &&
4675 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4676 res->len_information_elements,
4677 res->information_elements)) ||
4678 (res->beacon_ies && res->len_beacon_ies &&
4679 res->beacon_ies != res->information_elements &&
4680 nla_put(msg, NL80211_BSS_BEACON_IES,
4681 res->len_beacon_ies, res->beacon_ies)))
4682 goto nla_put_failure;
4683 if (res->tsf &&
4684 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4685 goto nla_put_failure;
4686 if (res->beacon_interval &&
4687 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4688 goto nla_put_failure;
4689 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4690 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4691 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4692 jiffies_to_msecs(jiffies - intbss->ts)))
4693 goto nla_put_failure;
2a519311 4694
77965c97 4695 switch (rdev->wiphy.signal_type) {
2a519311 4696 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4697 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4698 goto nla_put_failure;
2a519311
JB		 4699 break;
4700 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4701 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4702 goto nla_put_failure;
2a519311
JB		 4703 break;
4704 default:
4705 break;
4706 }
4707
48ab905d 4708 switch (wdev->iftype) {
074ac8df 4709 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4710 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4711 if (intbss == wdev->current_bss &&
4712 nla_put_u32(msg, NL80211_BSS_STATUS,
4713 NL80211_BSS_STATUS_ASSOCIATED))
4714 goto nla_put_failure;
48ab905d
JB		 4715 break;
4716 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4717 if (intbss == wdev->current_bss &&
4718 nla_put_u32(msg, NL80211_BSS_STATUS,
4719 NL80211_BSS_STATUS_IBSS_JOINED))
4720 goto nla_put_failure;
48ab905d
JB		 4721 break;
4722 default:
4723 break;
4724 }
4725
2a519311
JB		 4726 nla_nest_end(msg, bss);
4727
4728 return genlmsg_end(msg, hdr);
4729
4730 nla_put_failure:
4731 genlmsg_cancel(msg, hdr);
4732 return -EMSGSIZE;
4733}
4734
4735static int nl80211_dump_scan(struct sk_buff *skb,
4736 struct netlink_callback *cb)
4737{
48ab905d
JB		 4738 struct cfg80211_registered_device *rdev;
4739 struct net_device *dev;
2a519311 4740 struct cfg80211_internal_bss *scan;
48ab905d 4741 struct wireless_dev *wdev;
2a519311
JB		 4742 int start = cb->args[1], idx = 0;
4743 int err;
4744
67748893
JB		 4745 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4746 if (err)
4747 return err;
2a519311 4748
48ab905d 4749 wdev = dev->ieee80211_ptr;
2a519311 4750
48ab905d
JB		 4751 wdev_lock(wdev);
4752 spin_lock_bh(&rdev->bss_lock);
4753 cfg80211_bss_expire(rdev);
4754
9720bb3a
JB		 4755 cb->seq = rdev->bss_generation;
4756
48ab905d 4757 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4758 if (++idx <= start)
4759 continue;
9720bb3a 4760 if (nl80211_send_bss(skb, cb,
2a519311 4761 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4762 rdev, wdev, scan) < 0) {
2a519311 4763 idx--;
67748893 4764 break;
2a519311
JB		 4765 }
4766 }
4767
48ab905d
JB		 4768 spin_unlock_bh(&rdev->bss_lock);
4769 wdev_unlock(wdev);
2a519311
JB		 4770
4771 cb->args[1] = idx;
67748893 4772 nl80211_finish_netdev_dump(rdev);
2a519311 4773
67748893 4774 return skb->len;
2a519311
JB		 4775}
4776
15e47304 4777static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 4778 int flags, struct net_device *dev,
4779 struct survey_info *survey)
4780{
4781 void *hdr;
4782 struct nlattr *infoattr;
4783
15e47304 4784 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 4785 NL80211_CMD_NEW_SURVEY_RESULTS);
4786 if (!hdr)
4787 return -ENOMEM;
4788
9360ffd1
DM		 4789 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4790 goto nla_put_failure;
61fa713c
HS		 4791
4792 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4793 if (!infoattr)
4794 goto nla_put_failure;
4795
9360ffd1
DM		 4796 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4797 survey->channel->center_freq))
4798 goto nla_put_failure;
4799
4800 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4801 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4802 goto nla_put_failure;
4803 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4804 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4805 goto nla_put_failure;
4806 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4807 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4808 survey->channel_time))
4809 goto nla_put_failure;
4810 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4811 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4812 survey->channel_time_busy))
4813 goto nla_put_failure;
4814 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4815 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4816 survey->channel_time_ext_busy))
4817 goto nla_put_failure;
4818 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4819 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4820 survey->channel_time_rx))
4821 goto nla_put_failure;
4822 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4823 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4824 survey->channel_time_tx))
4825 goto nla_put_failure;
61fa713c
HS		 4826
4827 nla_nest_end(msg, infoattr);
4828
4829 return genlmsg_end(msg, hdr);
4830
4831 nla_put_failure:
4832 genlmsg_cancel(msg, hdr);
4833 return -EMSGSIZE;
4834}
4835
4836static int nl80211_dump_survey(struct sk_buff *skb,
4837 struct netlink_callback *cb)
4838{
4839 struct survey_info survey;
4840 struct cfg80211_registered_device *dev;
4841 struct net_device *netdev;
61fa713c
HS		 4842 int survey_idx = cb->args[1];
4843 int res;
4844
67748893
JB		 4845 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4846 if (res)
4847 return res;
61fa713c
HS		 4848
4849 if (!dev->ops->dump_survey) {
4850 res = -EOPNOTSUPP;
4851 goto out_err;
4852 }
4853
4854 while (1) {
180cdc79
LR		 4855 struct ieee80211_channel *chan;
4856
61fa713c
HS		 4857 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4858 &survey);
4859 if (res == -ENOENT)
4860 break;
4861 if (res)
4862 goto out_err;
4863
180cdc79
LR		 4864 /* Survey without a channel doesn't make sense */
4865 if (!survey.channel) {
4866 res = -EINVAL;
4867 goto out;
4868 }
4869
4870 chan = ieee80211_get_channel(&dev->wiphy,
4871 survey.channel->center_freq);
4872 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4873 survey_idx++;
4874 continue;
4875 }
4876
61fa713c 4877 if (nl80211_send_survey(skb,
15e47304 4878 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 4879 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4880 netdev,
4881 &survey) < 0)
4882 goto out;
4883 survey_idx++;
4884 }
4885
4886 out:
4887 cb->args[1] = survey_idx;
4888 res = skb->len;
4889 out_err:
67748893 4890 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4891 return res;
4892}
4893
b23aa676
SO		 4894static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4895{
4896 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4897 NL80211_WPA_VERSION_2));
4898}
4899
636a5d36
JM		 4900static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4901{
4c476991
JB		 4902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4903 struct net_device *dev = info->user_ptr[1];
19957bb3 4904 struct ieee80211_channel *chan;
e39e5b5e
JM		 4905 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
4906 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 4907 enum nl80211_auth_type auth_type;
fffd0934 4908 struct key_parse key;
d5cdfacb 4909 bool local_state_change;
636a5d36 4910
f4a11bb0
JB		 4911 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4912 return -EINVAL;
4913
4914 if (!info->attrs[NL80211_ATTR_MAC])
4915 return -EINVAL;
4916
1778092e
JM		 4917 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4918 return -EINVAL;
4919
19957bb3
JB		 4920 if (!info->attrs[NL80211_ATTR_SSID])
4921 return -EINVAL;
4922
4923 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4924 return -EINVAL;
4925
fffd0934
JB		 4926 err = nl80211_parse_key(info, &key);
4927 if (err)
4928 return err;
4929
4930 if (key.idx >= 0) {
e31b8213
JB		 4931 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4932 return -EINVAL;
fffd0934
JB		 4933 if (!key.p.key || !key.p.key_len)
4934 return -EINVAL;
4935 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4936 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4937 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4938 key.p.key_len != WLAN_KEY_LEN_WEP104))
4939 return -EINVAL;
4940 if (key.idx > 4)
4941 return -EINVAL;
4942 } else {
4943 key.p.key_len = 0;
4944 key.p.key = NULL;
4945 }
4946
afea0b7a
JB		 4947 if (key.idx >= 0) {
4948 int i;
4949 bool ok = false;
4950 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4951 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4952 ok = true;
4953 break;
4954 }
4955 }
4c476991
JB		 4956 if (!ok)
4957 return -EINVAL;
afea0b7a
JB		 4958 }
4959
4c476991
JB		 4960 if (!rdev->ops->auth)
4961 return -EOPNOTSUPP;
636a5d36 4962
074ac8df 4963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4965 return -EOPNOTSUPP;
eec60b03 4966
19957bb3 4967 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4968 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4969 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4970 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4971 return -EINVAL;
636a5d36 4972
19957bb3
JB		 4973 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4974 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4975
4976 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4977 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4978 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4979 }
4980
19957bb3 4981 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 4982 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 4983 return -EINVAL;
636a5d36 4984
e39e5b5e
JM		 4985 if (auth_type == NL80211_AUTHTYPE_SAE &&
4986 !info->attrs[NL80211_ATTR_SAE_DATA])
4987 return -EINVAL;
4988
4989 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
4990 if (auth_type != NL80211_AUTHTYPE_SAE)
4991 return -EINVAL;
4992 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
4993 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
4994 /* need to include at least Auth Transaction and Status Code */
4995 if (sae_data_len < 4)
4996 return -EINVAL;
4997 }
4998
d5cdfacb
JM		 4999 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5000
95de817b
JB		 5001 /*
5002 * Since we no longer track auth state, ignore
5003 * requests to only change local state.
5004 */
5005 if (local_state_change)
5006 return 0;
5007
4c476991
JB		 5008 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5009 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5010 key.p.key, key.p.key_len, key.idx,
5011 sae_data, sae_data_len);
636a5d36
JM		 5012}
5013
c0692b8f
JB		 5014static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5015 struct genl_info *info,
3dc27d25
JB		 5016 struct cfg80211_crypto_settings *settings,
5017 int cipher_limit)
b23aa676 5018{
c0b2bbd8
JB		 5019 memset(settings, 0, sizeof(*settings));
5020
b23aa676
SO		 5021 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5022
c0692b8f
JB		 5023 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5024 u16 proto;
5025 proto = nla_get_u16(
5026 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5027 settings->control_port_ethertype = cpu_to_be16(proto);
5028 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5029 proto != ETH_P_PAE)
5030 return -EINVAL;
5031 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5032 settings->control_port_no_encrypt = true;
5033 } else
5034 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5035
b23aa676
SO		 5036 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5037 void *data;
5038 int len, i;
5039
5040 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5041 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5042 settings->n_ciphers_pairwise = len / sizeof(u32);
5043
5044 if (len % sizeof(u32))
5045 return -EINVAL;
5046
3dc27d25 5047 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5048 return -EINVAL;
5049
5050 memcpy(settings->ciphers_pairwise, data, len);
5051
5052 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5053 if (!cfg80211_supported_cipher_suite(
5054 &rdev->wiphy,
b23aa676
SO		 5055 settings->ciphers_pairwise[i]))
5056 return -EINVAL;
5057 }
5058
5059 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5060 settings->cipher_group =
5061 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5062 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5063 settings->cipher_group))
b23aa676
SO		 5064 return -EINVAL;
5065 }
5066
5067 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5068 settings->wpa_versions =
5069 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5070 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5071 return -EINVAL;
5072 }
5073
5074 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5075 void *data;
6d30240e 5076 int len;
b23aa676
SO		 5077
5078 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5079 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5080 settings->n_akm_suites = len / sizeof(u32);
5081
5082 if (len % sizeof(u32))
5083 return -EINVAL;
5084
1b9ca027
JM		 5085 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5086 return -EINVAL;
5087
b23aa676 5088 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5089 }
5090
5091 return 0;
5092}
5093
636a5d36
JM		 5094static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5095{
4c476991
JB		 5096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5097 struct net_device *dev = info->user_ptr[1];
19957bb3 5098 struct cfg80211_crypto_settings crypto;
f444de05 5099 struct ieee80211_channel *chan;
3e5d7649 5100 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5101 int err, ssid_len, ie_len = 0;
5102 bool use_mfp = false;
7e7c8926
BG		 5103 u32 flags = 0;
5104 struct ieee80211_ht_cap *ht_capa = NULL;
5105 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5106
f4a11bb0
JB		 5107 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5108 return -EINVAL;
5109
5110 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5111 !info->attrs[NL80211_ATTR_SSID] ||
5112 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5113 return -EINVAL;
5114
4c476991
JB		 5115 if (!rdev->ops->assoc)
5116 return -EOPNOTSUPP;
636a5d36 5117
074ac8df 5118 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5119 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5120 return -EOPNOTSUPP;
eec60b03 5121
19957bb3 5122 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5123
19957bb3
JB		 5124 chan = ieee80211_get_channel(&rdev->wiphy,
5125 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5126 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5127 return -EINVAL;
636a5d36 5128
19957bb3
JB		 5129 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5130 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5131
5132 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5133 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5134 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5135 }
5136
dc6382ce 5137 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5138 enum nl80211_mfp mfp =
dc6382ce 5139 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5140 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5141 use_mfp = true;
4c476991
JB		 5142 else if (mfp != NL80211_MFP_NO)
5143 return -EINVAL;
dc6382ce
JM		 5144 }
5145
3e5d7649
JB		 5146 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5147 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5148
7e7c8926
BG		 5149 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5150 flags |= ASSOC_REQ_DISABLE_HT;
5151
5152 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5153 ht_capa_mask =
5154 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5155
5156 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5157 if (!ht_capa_mask)
5158 return -EINVAL;
5159 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5160 }
5161
c0692b8f 5162 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5163 if (!err)
3e5d7649
JB		 5164 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5165 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5166 &crypto, flags, ht_capa,
5167 ht_capa_mask);
636a5d36 5168
636a5d36
JM		 5169 return err;
5170}
5171
5172static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5173{
4c476991
JB		 5174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5175 struct net_device *dev = info->user_ptr[1];
19957bb3 5176 const u8 *ie = NULL, *bssid;
4c476991 5177 int ie_len = 0;
19957bb3 5178 u16 reason_code;
d5cdfacb 5179 bool local_state_change;
636a5d36 5180
f4a11bb0
JB		 5181 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5182 return -EINVAL;
5183
5184 if (!info->attrs[NL80211_ATTR_MAC])
5185 return -EINVAL;
5186
5187 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5188 return -EINVAL;
5189
4c476991
JB		 5190 if (!rdev->ops->deauth)
5191 return -EOPNOTSUPP;
636a5d36 5192
074ac8df 5193 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5194 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5195 return -EOPNOTSUPP;
eec60b03 5196
19957bb3 5197 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5198
19957bb3
JB		 5199 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5200 if (reason_code == 0) {
f4a11bb0 5201 /* Reason Code 0 is reserved */
4c476991 5202 return -EINVAL;
255e737e 5203 }
636a5d36
JM		 5204
5205 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5206 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5207 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5208 }
5209
d5cdfacb
JM		 5210 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5211
4c476991
JB		 5212 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5213 local_state_change);
636a5d36
JM		 5214}
5215
5216static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5217{
4c476991
JB		 5218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5219 struct net_device *dev = info->user_ptr[1];
19957bb3 5220 const u8 *ie = NULL, *bssid;
4c476991 5221 int ie_len = 0;
19957bb3 5222 u16 reason_code;
d5cdfacb 5223 bool local_state_change;
636a5d36 5224
f4a11bb0
JB		 5225 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5226 return -EINVAL;
5227
5228 if (!info->attrs[NL80211_ATTR_MAC])
5229 return -EINVAL;
5230
5231 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5232 return -EINVAL;
5233
4c476991
JB		 5234 if (!rdev->ops->disassoc)
5235 return -EOPNOTSUPP;
636a5d36 5236
074ac8df 5237 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5238 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5239 return -EOPNOTSUPP;
eec60b03 5240
19957bb3 5241 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5242
19957bb3
JB		 5243 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5244 if (reason_code == 0) {
f4a11bb0 5245 /* Reason Code 0 is reserved */
4c476991 5246 return -EINVAL;
255e737e 5247 }
636a5d36
JM		 5248
5249 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5250 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5251 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5252 }
5253
d5cdfacb
JM		 5254 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5255
4c476991
JB		 5256 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5257 local_state_change);
636a5d36
JM		 5258}
5259
dd5b4cc7
FF		 5260static bool
5261nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5262 int mcast_rate[IEEE80211_NUM_BANDS],
5263 int rateval)
5264{
5265 struct wiphy *wiphy = &rdev->wiphy;
5266 bool found = false;
5267 int band, i;
5268
5269 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5270 struct ieee80211_supported_band *sband;
5271
5272 sband = wiphy->bands[band];
5273 if (!sband)
5274 continue;
5275
5276 for (i = 0; i < sband->n_bitrates; i++) {
5277 if (sband->bitrates[i].bitrate == rateval) {
5278 mcast_rate[band] = i + 1;
5279 found = true;
5280 break;
5281 }
5282 }
5283 }
5284
5285 return found;
5286}
5287
04a773ad
JB		 5288static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5289{
4c476991
JB		 5290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5291 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5292 struct cfg80211_ibss_params ibss;
5293 struct wiphy *wiphy;
fffd0934 5294 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5295 int err;
5296
8e30bc55
JB		 5297 memset(&ibss, 0, sizeof(ibss));
5298
04a773ad
JB		 5299 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5300 return -EINVAL;
5301
5302 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5303 !info->attrs[NL80211_ATTR_SSID] ||
5304 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5305 return -EINVAL;
5306
8e30bc55
JB		 5307 ibss.beacon_interval = 100;
5308
5309 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5310 ibss.beacon_interval =
5311 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5312 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5313 return -EINVAL;
5314 }
5315
4c476991
JB		 5316 if (!rdev->ops->join_ibss)
5317 return -EOPNOTSUPP;
04a773ad 5318
4c476991
JB		 5319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5320 return -EOPNOTSUPP;
04a773ad 5321
79c97e97 5322 wiphy = &rdev->wiphy;
04a773ad 5323
39193498 5324 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5325 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5326
5327 if (!is_valid_ether_addr(ibss.bssid))
5328 return -EINVAL;
5329 }
04a773ad
JB		 5330 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5331 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5332
5333 if (info->attrs[NL80211_ATTR_IE]) {
5334 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5335 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5336 }
5337
54858ee5
AS		 5338 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5339 enum nl80211_channel_type channel_type;
5340
cd6c6598 5341 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5342 return -EINVAL;
5343
5344 if (channel_type != NL80211_CHAN_NO_HT &&
5345 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5346 return -EINVAL;
5347
5348 ibss.channel_type = channel_type;
5349 } else {
5350 ibss.channel_type = NL80211_CHAN_NO_HT;
5351 }
5352
5353 ibss.channel = rdev_freq_to_chan(rdev,
5354 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5355 ibss.channel_type);
04a773ad
JB		 5356 if (!ibss.channel ||
5357 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5358 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5359 return -EINVAL;
04a773ad 5360
54858ee5
AS		 5361 /* Both channels should be able to initiate communication */
5362 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5363 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5364 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5365 ibss.channel_type))
5366 return -EINVAL;
5367
04a773ad 5368 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5369 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5370
fbd2c8dc
TP		 5371 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5372 u8 *rates =
5373 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5374 int n_rates =
5375 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5376 struct ieee80211_supported_band *sband =
5377 wiphy->bands[ibss.channel->band];
fbd2c8dc 5378
34850ab2
JB		 5379 err = ieee80211_get_ratemask(sband, rates, n_rates,
5380 &ibss.basic_rates);
5381 if (err)
5382 return err;
fbd2c8dc 5383 }
dd5b4cc7
FF		 5384
5385 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5386 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5387 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5388 return -EINVAL;
fbd2c8dc 5389
4c476991
JB		 5390 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5391 connkeys = nl80211_parse_connkeys(rdev,
5392 info->attrs[NL80211_ATTR_KEYS]);
5393 if (IS_ERR(connkeys))
5394 return PTR_ERR(connkeys);
5395 }
04a773ad 5396
267335d6
AQ		 5397 ibss.control_port =
5398 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5399
4c476991 5400 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5401 if (err)
5402 kfree(connkeys);
04a773ad
JB		 5403 return err;
5404}
5405
5406static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5407{
4c476991
JB		 5408 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5409 struct net_device *dev = info->user_ptr[1];
04a773ad 5410
4c476991
JB		 5411 if (!rdev->ops->leave_ibss)
5412 return -EOPNOTSUPP;
04a773ad 5413
4c476991
JB		 5414 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5415 return -EOPNOTSUPP;
04a773ad 5416
4c476991 5417 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5418}
5419
aff89a9b
JB		 5420#ifdef CONFIG_NL80211_TESTMODE
5421static struct genl_multicast_group nl80211_testmode_mcgrp = {
5422 .name = "testmode",
5423};
5424
5425static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5426{
4c476991 5427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5428 int err;
5429
5430 if (!info->attrs[NL80211_ATTR_TESTDATA])
5431 return -EINVAL;
5432
aff89a9b
JB		 5433 err = -EOPNOTSUPP;
5434 if (rdev->ops->testmode_cmd) {
5435 rdev->testmode_info = info;
5436 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5437 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5438 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5439 rdev->testmode_info = NULL;
5440 }
5441
aff89a9b
JB		 5442 return err;
5443}
5444
71063f0e
WYG		 5445static int nl80211_testmode_dump(struct sk_buff *skb,
5446 struct netlink_callback *cb)
5447{
00918d33 5448 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5449 int err;
5450 long phy_idx;
5451 void *data = NULL;
5452 int data_len = 0;
5453
5454 if (cb->args[0]) {
5455 /*
5456 * 0 is a valid index, but not valid for args[0],
5457 * so we need to offset by 1.
5458 */
5459 phy_idx = cb->args[0] - 1;
5460 } else {
5461 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5462 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5463 nl80211_policy);
5464 if (err)
5465 return err;
00918d33 5466
2bd7e35d
JB		 5467 mutex_lock(&cfg80211_mutex);
5468 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5469 nl80211_fam.attrbuf);
5470 if (IS_ERR(rdev)) {
5471 mutex_unlock(&cfg80211_mutex);
5472 return PTR_ERR(rdev);
00918d33 5473 }
2bd7e35d
JB		 5474 phy_idx = rdev->wiphy_idx;
5475 rdev = NULL;
5476 mutex_unlock(&cfg80211_mutex);
5477
71063f0e
WYG		 5478 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5479 cb->args[1] =
5480 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5481 }
5482
5483 if (cb->args[1]) {
5484 data = nla_data((void *)cb->args[1]);
5485 data_len = nla_len((void *)cb->args[1]);
5486 }
5487
5488 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5489 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5490 if (!rdev) {
71063f0e
WYG		 5491 mutex_unlock(&cfg80211_mutex);
5492 return -ENOENT;
5493 }
00918d33 5494 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5495 mutex_unlock(&cfg80211_mutex);
5496
00918d33 5497 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5498 err = -EOPNOTSUPP;
5499 goto out_err;
5500 }
5501
5502 while (1) {
15e47304 5503 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 5504 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5505 NL80211_CMD_TESTMODE);
5506 struct nlattr *tmdata;
5507
9360ffd1 5508 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5509 genlmsg_cancel(skb, hdr);
5510 break;
5511 }
5512
5513 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5514 if (!tmdata) {
5515 genlmsg_cancel(skb, hdr);
5516 break;
5517 }
00918d33
JB		 5518 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5519 data, data_len);
71063f0e
WYG		 5520 nla_nest_end(skb, tmdata);
5521
5522 if (err == -ENOBUFS || err == -ENOENT) {
5523 genlmsg_cancel(skb, hdr);
5524 break;
5525 } else if (err) {
5526 genlmsg_cancel(skb, hdr);
5527 goto out_err;
5528 }
5529
5530 genlmsg_end(skb, hdr);
5531 }
5532
5533 err = skb->len;
5534 /* see above */
5535 cb->args[0] = phy_idx + 1;
5536 out_err:
00918d33 5537 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5538 return err;
5539}
5540
aff89a9b
JB		 5541static struct sk_buff *
5542__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 5543 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 5544{
5545 struct sk_buff *skb;
5546 void *hdr;
5547 struct nlattr *data;
5548
5549 skb = nlmsg_new(approxlen + 100, gfp);
5550 if (!skb)
5551 return NULL;
5552
15e47304 5553 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 5554 if (!hdr) {
5555 kfree_skb(skb);
5556 return NULL;
5557 }
5558
9360ffd1
DM		 5559 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5560 goto nla_put_failure;
aff89a9b
JB		 5561 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5562
5563 ((void **)skb->cb)[0] = rdev;
5564 ((void **)skb->cb)[1] = hdr;
5565 ((void **)skb->cb)[2] = data;
5566
5567 return skb;
5568
5569 nla_put_failure:
5570 kfree_skb(skb);
5571 return NULL;
5572}
5573
5574struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5575 int approxlen)
5576{
5577 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5578
5579 if (WARN_ON(!rdev->testmode_info))
5580 return NULL;
5581
5582 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 5583 rdev->testmode_info->snd_portid,
aff89a9b
JB		 5584 rdev->testmode_info->snd_seq,
5585 GFP_KERNEL);
5586}
5587EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5588
5589int cfg80211_testmode_reply(struct sk_buff *skb)
5590{
5591 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5592 void *hdr = ((void **)skb->cb)[1];
5593 struct nlattr *data = ((void **)skb->cb)[2];
5594
5595 if (WARN_ON(!rdev->testmode_info)) {
5596 kfree_skb(skb);
5597 return -EINVAL;
5598 }
5599
5600 nla_nest_end(skb, data);
5601 genlmsg_end(skb, hdr);
5602 return genlmsg_reply(skb, rdev->testmode_info);
5603}
5604EXPORT_SYMBOL(cfg80211_testmode_reply);
5605
5606struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5607 int approxlen, gfp_t gfp)
5608{
5609 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5610
5611 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5612}
5613EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5614
5615void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5616{
5617 void *hdr = ((void **)skb->cb)[1];
5618 struct nlattr *data = ((void **)skb->cb)[2];
5619
5620 nla_nest_end(skb, data);
5621 genlmsg_end(skb, hdr);
5622 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5623}
5624EXPORT_SYMBOL(cfg80211_testmode_event);
5625#endif
5626
b23aa676
SO		 5627static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5628{
4c476991
JB		 5629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5630 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5631 struct cfg80211_connect_params connect;
5632 struct wiphy *wiphy;
fffd0934 5633 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5634 int err;
5635
5636 memset(&connect, 0, sizeof(connect));
5637
5638 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5639 return -EINVAL;
5640
5641 if (!info->attrs[NL80211_ATTR_SSID] ||
5642 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5643 return -EINVAL;
5644
5645 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5646 connect.auth_type =
5647 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 5648 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5649 NL80211_CMD_CONNECT))
b23aa676
SO		 5650 return -EINVAL;
5651 } else
5652 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5653
5654 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5655
c0692b8f 5656 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5657 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5658 if (err)
5659 return err;
b23aa676 5660
074ac8df 5661 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5662 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5663 return -EOPNOTSUPP;
b23aa676 5664
79c97e97 5665 wiphy = &rdev->wiphy;
b23aa676 5666
4486ea98
BS		 5667 connect.bg_scan_period = -1;
5668 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5669 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5670 connect.bg_scan_period =
5671 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5672 }
5673
b23aa676
SO		 5674 if (info->attrs[NL80211_ATTR_MAC])
5675 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5676 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5677 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5678
5679 if (info->attrs[NL80211_ATTR_IE]) {
5680 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5681 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5682 }
5683
5684 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5685 connect.channel =
5686 ieee80211_get_channel(wiphy,
5687 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5688 if (!connect.channel ||
4c476991
JB		 5689 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5690 return -EINVAL;
b23aa676
SO		 5691 }
5692
fffd0934
JB		 5693 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5694 connkeys = nl80211_parse_connkeys(rdev,
5695 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5696 if (IS_ERR(connkeys))
5697 return PTR_ERR(connkeys);
fffd0934
JB		 5698 }
5699
7e7c8926
BG		 5700 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5701 connect.flags |= ASSOC_REQ_DISABLE_HT;
5702
5703 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5704 memcpy(&connect.ht_capa_mask,
5705 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5706 sizeof(connect.ht_capa_mask));
5707
5708 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 5709 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5710 kfree(connkeys);
7e7c8926 5711 return -EINVAL;
b4e4f47e 5712 }
7e7c8926
BG		 5713 memcpy(&connect.ht_capa,
5714 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5715 sizeof(connect.ht_capa));
5716 }
5717
fffd0934 5718 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5719 if (err)
5720 kfree(connkeys);
b23aa676
SO		 5721 return err;
5722}
5723
5724static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5725{
4c476991
JB		 5726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5728 u16 reason;
5729
5730 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5731 reason = WLAN_REASON_DEAUTH_LEAVING;
5732 else
5733 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5734
5735 if (reason == 0)
5736 return -EINVAL;
5737
074ac8df 5738 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5739 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5740 return -EOPNOTSUPP;
b23aa676 5741
4c476991 5742 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5743}
5744
463d0183
JB		 5745static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5746{
4c476991 5747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5748 struct net *net;
5749 int err;
5750 u32 pid;
5751
5752 if (!info->attrs[NL80211_ATTR_PID])
5753 return -EINVAL;
5754
5755 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5756
463d0183 5757 net = get_net_ns_by_pid(pid);
4c476991
JB		 5758 if (IS_ERR(net))
5759 return PTR_ERR(net);
463d0183
JB		 5760
5761 err = 0;
5762
5763 /* check if anything to do */
4c476991
JB		 5764 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5765 err = cfg80211_switch_netns(rdev, net);
463d0183 5766
463d0183 5767 put_net(net);
463d0183
JB		 5768 return err;
5769}
5770
67fbb16b
SO		 5771static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5772{
4c476991 5773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5774 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5775 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5776 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5777 struct cfg80211_pmksa pmksa;
5778
5779 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5780
5781 if (!info->attrs[NL80211_ATTR_MAC])
5782 return -EINVAL;
5783
5784 if (!info->attrs[NL80211_ATTR_PMKID])
5785 return -EINVAL;
5786
67fbb16b
SO		 5787 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5788 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5789
074ac8df 5790 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5791 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5792 return -EOPNOTSUPP;
67fbb16b
SO		 5793
5794 switch (info->genlhdr->cmd) {
5795 case NL80211_CMD_SET_PMKSA:
5796 rdev_ops = rdev->ops->set_pmksa;
5797 break;
5798 case NL80211_CMD_DEL_PMKSA:
5799 rdev_ops = rdev->ops->del_pmksa;
5800 break;
5801 default:
5802 WARN_ON(1);
5803 break;
5804 }
5805
4c476991
JB		 5806 if (!rdev_ops)
5807 return -EOPNOTSUPP;
67fbb16b 5808
4c476991 5809 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5810}
5811
5812static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5813{
4c476991
JB		 5814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5815 struct net_device *dev = info->user_ptr[1];
67fbb16b 5816
074ac8df 5817 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5818 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5819 return -EOPNOTSUPP;
67fbb16b 5820
4c476991
JB		 5821 if (!rdev->ops->flush_pmksa)
5822 return -EOPNOTSUPP;
67fbb16b 5823
4c476991 5824 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5825}
5826
109086ce
AN		 5827static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5828{
5829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5830 struct net_device *dev = info->user_ptr[1];
5831 u8 action_code, dialog_token;
5832 u16 status_code;
5833 u8 *peer;
5834
5835 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5836 !rdev->ops->tdls_mgmt)
5837 return -EOPNOTSUPP;
5838
5839 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5840 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5841 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5842 !info->attrs[NL80211_ATTR_IE] ||
5843 !info->attrs[NL80211_ATTR_MAC])
5844 return -EINVAL;
5845
5846 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5847 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5848 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5849 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5850
5851 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5852 dialog_token, status_code,
5853 nla_data(info->attrs[NL80211_ATTR_IE]),
5854 nla_len(info->attrs[NL80211_ATTR_IE]));
5855}
5856
5857static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5858{
5859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5860 struct net_device *dev = info->user_ptr[1];
5861 enum nl80211_tdls_operation operation;
5862 u8 *peer;
5863
5864 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5865 !rdev->ops->tdls_oper)
5866 return -EOPNOTSUPP;
5867
5868 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5869 !info->attrs[NL80211_ATTR_MAC])
5870 return -EINVAL;
5871
5872 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5873 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5874
5875 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5876}
5877
9588bbd5
JM		 5878static int nl80211_remain_on_channel(struct sk_buff *skb,
5879 struct genl_info *info)
5880{
4c476991 5881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 5882 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5
JM		 5883 struct ieee80211_channel *chan;
5884 struct sk_buff *msg;
5885 void *hdr;
5886 u64 cookie;
5887 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5888 u32 freq, duration;
5889 int err;
5890
5891 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5892 !info->attrs[NL80211_ATTR_DURATION])
5893 return -EINVAL;
5894
5895 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5896
ebf348fc
JB		 5897 if (!rdev->ops->remain_on_channel ||
5898 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5899 return -EOPNOTSUPP;
5900
9588bbd5 5901 /*
ebf348fc
JB		 5902 * We should be on that channel for at least a minimum amount of
5903 * time (10ms) but no longer than the driver supports.
9588bbd5 5904 */
ebf348fc 5905 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5906 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5907 return -EINVAL;
5908
cd6c6598
JB		 5909 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5910 !nl80211_valid_channel_type(info, &channel_type))
5911 return -EINVAL;
9588bbd5
JM		 5912
5913 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5914 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5915 if (chan == NULL)
5916 return -EINVAL;
9588bbd5
JM		 5917
5918 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5919 if (!msg)
5920 return -ENOMEM;
9588bbd5 5921
15e47304 5922 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 5923 NL80211_CMD_REMAIN_ON_CHANNEL);
5924
5925 if (IS_ERR(hdr)) {
5926 err = PTR_ERR(hdr);
5927 goto free_msg;
5928 }
5929
71bbc994 5930 err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
9588bbd5
JM		 5931 channel_type, duration, &cookie);
5932
5933 if (err)
5934 goto free_msg;
5935
9360ffd1
DM		 5936 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5937 goto nla_put_failure;
9588bbd5
JM		 5938
5939 genlmsg_end(msg, hdr);
4c476991
JB		 5940
5941 return genlmsg_reply(msg, info);
9588bbd5
JM		 5942
5943 nla_put_failure:
5944 err = -ENOBUFS;
5945 free_msg:
5946 nlmsg_free(msg);
9588bbd5
JM		 5947 return err;
5948}
5949
5950static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5951 struct genl_info *info)
5952{
4c476991 5953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 5954 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 5955 u64 cookie;
9588bbd5
JM		 5956
5957 if (!info->attrs[NL80211_ATTR_COOKIE])
5958 return -EINVAL;
5959
4c476991
JB		 5960 if (!rdev->ops->cancel_remain_on_channel)
5961 return -EOPNOTSUPP;
9588bbd5 5962
9588bbd5
JM		 5963 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5964
71bbc994 5965 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
9588bbd5
JM		 5966}
5967
13ae75b1
JM		 5968static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5969 u8 *rates, u8 rates_len)
5970{
5971 u8 i;
5972 u32 mask = 0;
5973
5974 for (i = 0; i < rates_len; i++) {
5975 int rate = (rates[i] & 0x7f) * 5;
5976 int ridx;
5977 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5978 struct ieee80211_rate *srate =
5979 &sband->bitrates[ridx];
5980 if (rate == srate->bitrate) {
5981 mask |= 1 << ridx;
5982 break;
5983 }
5984 }
5985 if (ridx == sband->n_bitrates)
5986 return 0; /* rate not found */
5987 }
5988
5989 return mask;
5990}
5991
24db78c0
SW		 5992static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5993 u8 *rates, u8 rates_len,
5994 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5995{
5996 u8 i;
5997
5998 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5999
6000 for (i = 0; i < rates_len; i++) {
6001 int ridx, rbit;
6002
6003 ridx = rates[i] / 8;
6004 rbit = BIT(rates[i] % 8);
6005
6006 /* check validity */
910570b5 6007 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6008 return false;
6009
6010 /* check availability */
6011 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6012 mcs[ridx] |= rbit;
6013 else
6014 return false;
6015 }
6016
6017 return true;
6018}
6019
b54452b0 6020static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6021 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6022 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6023 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6024 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6025};
6026
6027static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6028 struct genl_info *info)
6029{
6030 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6032 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6033 int rem, i;
6034 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6035 struct nlattr *tx_rates;
6036 struct ieee80211_supported_band *sband;
6037
6038 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6039 return -EINVAL;
6040
4c476991
JB		 6041 if (!rdev->ops->set_bitrate_mask)
6042 return -EOPNOTSUPP;
13ae75b1
JM		 6043
6044 memset(&mask, 0, sizeof(mask));
6045 /* Default to all rates enabled */
6046 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6047 sband = rdev->wiphy.bands[i];
6048 mask.control[i].legacy =
6049 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6050 if (sband)
6051 memcpy(mask.control[i].mcs,
6052 sband->ht_cap.mcs.rx_mask,
6053 sizeof(mask.control[i].mcs));
6054 else
6055 memset(mask.control[i].mcs, 0,
6056 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6057 }
6058
6059 /*
6060 * The nested attribute uses enum nl80211_band as the index. This maps
6061 * directly to the enum ieee80211_band values used in cfg80211.
6062 */
24db78c0 6063 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6064 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6065 {
6066 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6067 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6068 return -EINVAL;
13ae75b1 6069 sband = rdev->wiphy.bands[band];
4c476991
JB		 6070 if (sband == NULL)
6071 return -EINVAL;
13ae75b1
JM		 6072 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6073 nla_len(tx_rates), nl80211_txattr_policy);
6074 if (tb[NL80211_TXRATE_LEGACY]) {
6075 mask.control[band].legacy = rateset_to_mask(
6076 sband,
6077 nla_data(tb[NL80211_TXRATE_LEGACY]),
6078 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6079 if ((mask.control[band].legacy == 0) &&
6080 nla_len(tb[NL80211_TXRATE_LEGACY]))
6081 return -EINVAL;
24db78c0
SW		 6082 }
6083 if (tb[NL80211_TXRATE_MCS]) {
6084 if (!ht_rateset_to_mask(
6085 sband,
6086 nla_data(tb[NL80211_TXRATE_MCS]),
6087 nla_len(tb[NL80211_TXRATE_MCS]),
6088 mask.control[band].mcs))
6089 return -EINVAL;
6090 }
6091
6092 if (mask.control[band].legacy == 0) {
6093 /* don't allow empty legacy rates if HT
6094 * is not even supported. */
6095 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6096 return -EINVAL;
6097
6098 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6099 if (mask.control[band].mcs[i])
6100 break;
6101
6102 /* legacy and mcs rates may not be both empty */
6103 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6104 return -EINVAL;
13ae75b1
JM		 6105 }
6106 }
6107
4c476991 6108 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 6109}
6110
2e161f78 6111static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6112{
4c476991 6113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6114 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6115 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6116
6117 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6118 return -EINVAL;
6119
2e161f78
JB		 6120 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6121 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6122
71bbc994
JB		 6123 switch (wdev->iftype) {
6124 case NL80211_IFTYPE_STATION:
6125 case NL80211_IFTYPE_ADHOC:
6126 case NL80211_IFTYPE_P2P_CLIENT:
6127 case NL80211_IFTYPE_AP:
6128 case NL80211_IFTYPE_AP_VLAN:
6129 case NL80211_IFTYPE_MESH_POINT:
6130 case NL80211_IFTYPE_P2P_GO:
98104fde 6131 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6132 break;
6133 default:
4c476991 6134 return -EOPNOTSUPP;
71bbc994 6135 }
026331c4
JM		 6136
6137 /* not much point in registering if we can't reply */
4c476991
JB		 6138 if (!rdev->ops->mgmt_tx)
6139 return -EOPNOTSUPP;
026331c4 6140
15e47304 6141 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6142 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6143 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6144}
6145
2e161f78 6146static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6147{
4c476991 6148 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6149 struct wireless_dev *wdev = info->user_ptr[1];
026331c4
JM		 6150 struct ieee80211_channel *chan;
6151 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 6152 bool channel_type_valid = false;
026331c4
JM		 6153 u32 freq;
6154 int err;
d64d373f 6155 void *hdr = NULL;
026331c4 6156 u64 cookie;
e247bd90 6157 struct sk_buff *msg = NULL;
f7ca38df 6158 unsigned int wait = 0;
e247bd90
JB		 6159 bool offchan, no_cck, dont_wait_for_ack;
6160
6161 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 6162
6163 if (!info->attrs[NL80211_ATTR_FRAME] ||
6164 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6165 return -EINVAL;
6166
4c476991
JB		 6167 if (!rdev->ops->mgmt_tx)
6168 return -EOPNOTSUPP;
026331c4 6169
71bbc994
JB		 6170 switch (wdev->iftype) {
6171 case NL80211_IFTYPE_STATION:
6172 case NL80211_IFTYPE_ADHOC:
6173 case NL80211_IFTYPE_P2P_CLIENT:
6174 case NL80211_IFTYPE_AP:
6175 case NL80211_IFTYPE_AP_VLAN:
6176 case NL80211_IFTYPE_MESH_POINT:
6177 case NL80211_IFTYPE_P2P_GO:
98104fde 6178 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6179 break;
6180 default:
4c476991 6181 return -EOPNOTSUPP;
71bbc994 6182 }
026331c4 6183
f7ca38df 6184 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6185 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6186 return -EINVAL;
6187 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6188
6189 /*
6190 * We should wait on the channel for at least a minimum amount
6191 * of time (10ms) but no longer than the driver supports.
6192 */
6193 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6194 wait > rdev->wiphy.max_remain_on_channel_duration)
6195 return -EINVAL;
6196
f7ca38df
JB		 6197 }
6198
026331c4 6199 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 6200 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 6201 return -EINVAL;
252aa631 6202 channel_type_valid = true;
026331c4
JM		 6203 }
6204
f7ca38df
JB		 6205 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6206
7c4ef712
JB		 6207 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6208 return -EINVAL;
6209
e9f935e3
RM		 6210 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6211
026331c4
JM		 6212 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6213 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 6214 if (chan == NULL)
6215 return -EINVAL;
026331c4 6216
e247bd90
JB		 6217 if (!dont_wait_for_ack) {
6218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6219 if (!msg)
6220 return -ENOMEM;
026331c4 6221
15e47304 6222 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6223 NL80211_CMD_FRAME);
026331c4 6224
e247bd90
JB		 6225 if (IS_ERR(hdr)) {
6226 err = PTR_ERR(hdr);
6227 goto free_msg;
6228 }
026331c4 6229 }
e247bd90 6230
71bbc994 6231 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
f7ca38df 6232 channel_type_valid, wait,
2e161f78
JB		 6233 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6234 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6235 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6236 if (err)
6237 goto free_msg;
6238
e247bd90 6239 if (msg) {
9360ffd1
DM		 6240 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6241 goto nla_put_failure;
026331c4 6242
e247bd90
JB		 6243 genlmsg_end(msg, hdr);
6244 return genlmsg_reply(msg, info);
6245 }
6246
6247 return 0;
026331c4
JM		 6248
6249 nla_put_failure:
6250 err = -ENOBUFS;
6251 free_msg:
6252 nlmsg_free(msg);
026331c4
JM		 6253 return err;
6254}
6255
f7ca38df
JB		 6256static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6257{
6258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6259 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6260 u64 cookie;
6261
6262 if (!info->attrs[NL80211_ATTR_COOKIE])
6263 return -EINVAL;
6264
6265 if (!rdev->ops->mgmt_tx_cancel_wait)
6266 return -EOPNOTSUPP;
6267
71bbc994
JB		 6268 switch (wdev->iftype) {
6269 case NL80211_IFTYPE_STATION:
6270 case NL80211_IFTYPE_ADHOC:
6271 case NL80211_IFTYPE_P2P_CLIENT:
6272 case NL80211_IFTYPE_AP:
6273 case NL80211_IFTYPE_AP_VLAN:
6274 case NL80211_IFTYPE_P2P_GO:
98104fde 6275 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6276 break;
6277 default:
f7ca38df 6278 return -EOPNOTSUPP;
71bbc994 6279 }
f7ca38df
JB		 6280
6281 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6282
71bbc994 6283 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
f7ca38df
JB		 6284}
6285
ffb9eb3d
KV		 6286static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6287{
4c476991 6288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6289 struct wireless_dev *wdev;
4c476991 6290 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6291 u8 ps_state;
6292 bool state;
6293 int err;
6294
4c476991
JB		 6295 if (!info->attrs[NL80211_ATTR_PS_STATE])
6296 return -EINVAL;
ffb9eb3d
KV		 6297
6298 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6299
4c476991
JB		 6300 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6301 return -EINVAL;
ffb9eb3d
KV		 6302
6303 wdev = dev->ieee80211_ptr;
6304
4c476991
JB		 6305 if (!rdev->ops->set_power_mgmt)
6306 return -EOPNOTSUPP;
ffb9eb3d
KV		 6307
6308 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6309
6310 if (state == wdev->ps)
4c476991 6311 return 0;
ffb9eb3d 6312
4c476991
JB		 6313 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6314 wdev->ps_timeout);
6315 if (!err)
6316 wdev->ps = state;
ffb9eb3d
KV		 6317 return err;
6318}
6319
6320static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6321{
4c476991 6322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6323 enum nl80211_ps_state ps_state;
6324 struct wireless_dev *wdev;
4c476991 6325 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6326 struct sk_buff *msg;
6327 void *hdr;
6328 int err;
6329
ffb9eb3d
KV		 6330 wdev = dev->ieee80211_ptr;
6331
4c476991
JB		 6332 if (!rdev->ops->set_power_mgmt)
6333 return -EOPNOTSUPP;
ffb9eb3d
KV		 6334
6335 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6336 if (!msg)
6337 return -ENOMEM;
ffb9eb3d 6338
15e47304 6339 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6340 NL80211_CMD_GET_POWER_SAVE);
6341 if (!hdr) {
4c476991 6342 err = -ENOBUFS;
ffb9eb3d
KV		 6343 goto free_msg;
6344 }
6345
6346 if (wdev->ps)
6347 ps_state = NL80211_PS_ENABLED;
6348 else
6349 ps_state = NL80211_PS_DISABLED;
6350
9360ffd1
DM		 6351 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6352 goto nla_put_failure;
ffb9eb3d
KV		 6353
6354 genlmsg_end(msg, hdr);
4c476991 6355 return genlmsg_reply(msg, info);
ffb9eb3d 6356
4c476991 6357 nla_put_failure:
ffb9eb3d 6358 err = -ENOBUFS;
4c476991 6359 free_msg:
ffb9eb3d 6360 nlmsg_free(msg);
ffb9eb3d
KV		 6361 return err;
6362}
6363
d6dc1a38
JO		 6364static struct nla_policy
6365nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6366 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6367 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6368 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6369 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6370 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6371 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6372};
6373
84f10708
TP		 6374static int nl80211_set_cqm_txe(struct genl_info *info,
6375 u32 rate, u32 pkts, u32 intvl)
6376{
6377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6378 struct wireless_dev *wdev;
6379 struct net_device *dev = info->user_ptr[1];
6380
6381 if ((rate < 0 || rate > 100) ||
6382 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6383 return -EINVAL;
6384
6385 wdev = dev->ieee80211_ptr;
6386
6387 if (!rdev->ops->set_cqm_txe_config)
6388 return -EOPNOTSUPP;
6389
6390 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6391 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6392 return -EOPNOTSUPP;
6393
6394 return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
6395 rate, pkts, intvl);
6396}
6397
d6dc1a38
JO		 6398static int nl80211_set_cqm_rssi(struct genl_info *info,
6399 s32 threshold, u32 hysteresis)
6400{
4c476991 6401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6402 struct wireless_dev *wdev;
4c476991 6403 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6404
6405 if (threshold > 0)
6406 return -EINVAL;
6407
d6dc1a38
JO		 6408 wdev = dev->ieee80211_ptr;
6409
4c476991
JB		 6410 if (!rdev->ops->set_cqm_rssi_config)
6411 return -EOPNOTSUPP;
d6dc1a38 6412
074ac8df 6413 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6414 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6415 return -EOPNOTSUPP;
d6dc1a38 6416
4c476991
JB		 6417 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6418 threshold, hysteresis);
d6dc1a38
JO		 6419}
6420
6421static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6422{
6423 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6424 struct nlattr *cqm;
6425 int err;
6426
6427 cqm = info->attrs[NL80211_ATTR_CQM];
6428 if (!cqm) {
6429 err = -EINVAL;
6430 goto out;
6431 }
6432
6433 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6434 nl80211_attr_cqm_policy);
6435 if (err)
6436 goto out;
6437
6438 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6439 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6440 s32 threshold;
6441 u32 hysteresis;
6442 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6443 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6444 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6445 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6446 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6447 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6448 u32 rate, pkts, intvl;
6449 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6450 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6451 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6452 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6453 } else
6454 err = -EINVAL;
6455
6456out:
6457 return err;
6458}
6459
29cbe68c
JB		 6460static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6461{
6462 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6463 struct net_device *dev = info->user_ptr[1];
6464 struct mesh_config cfg;
c80d545d 6465 struct mesh_setup setup;
29cbe68c
JB		 6466 int err;
6467
6468 /* start with default */
6469 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6470 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6471
24bdd9f4 6472 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6473 /* and parse parameters if given */
24bdd9f4 6474 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6475 if (err)
6476 return err;
6477 }
6478
6479 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6480 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6481 return -EINVAL;
6482
c80d545d
JC		 6483 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6484 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6485
4bb62344
CYY		 6486 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6487 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6488 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6489 return -EINVAL;
6490
c80d545d
JC		 6491 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6492 /* parse additional setup parameters if given */
6493 err = nl80211_parse_mesh_setup(info, &setup);
6494 if (err)
6495 return err;
6496 }
6497
cc1d2806
JB		 6498 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6499 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6500
6501 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6502 !nl80211_valid_channel_type(info, &channel_type))
6503 return -EINVAL;
6504
6505 setup.channel = rdev_freq_to_chan(rdev,
6506 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6507 channel_type);
6508 if (!setup.channel)
6509 return -EINVAL;
6510 setup.channel_type = channel_type;
6511 } else {
6512 /* cfg80211_join_mesh() will sort it out */
6513 setup.channel = NULL;
6514 }
6515
c80d545d 6516 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6517}
6518
6519static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6520{
6521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6522 struct net_device *dev = info->user_ptr[1];
6523
6524 return cfg80211_leave_mesh(rdev, dev);
6525}
6526
dfb89c56 6527#ifdef CONFIG_PM
ff1b6e69
JB		 6528static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6529{
6530 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6531 struct sk_buff *msg;
6532 void *hdr;
6533
6534 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6535 return -EOPNOTSUPP;
6536
6537 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6538 if (!msg)
6539 return -ENOMEM;
6540
15e47304 6541 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6542 NL80211_CMD_GET_WOWLAN);
6543 if (!hdr)
6544 goto nla_put_failure;
6545
6546 if (rdev->wowlan) {
6547 struct nlattr *nl_wowlan;
6548
6549 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6550 if (!nl_wowlan)
6551 goto nla_put_failure;
6552
9360ffd1
DM		 6553 if ((rdev->wowlan->any &&
6554 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6555 (rdev->wowlan->disconnect &&
6556 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6557 (rdev->wowlan->magic_pkt &&
6558 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6559 (rdev->wowlan->gtk_rekey_failure &&
6560 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6561 (rdev->wowlan->eap_identity_req &&
6562 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6563 (rdev->wowlan->four_way_handshake &&
6564 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6565 (rdev->wowlan->rfkill_release &&
6566 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6567 goto nla_put_failure;
ff1b6e69
JB		 6568 if (rdev->wowlan->n_patterns) {
6569 struct nlattr *nl_pats, *nl_pat;
6570 int i, pat_len;
6571
6572 nl_pats = nla_nest_start(msg,
6573 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6574 if (!nl_pats)
6575 goto nla_put_failure;
6576
6577 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6578 nl_pat = nla_nest_start(msg, i + 1);
6579 if (!nl_pat)
6580 goto nla_put_failure;
6581 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6582 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6583 DIV_ROUND_UP(pat_len, 8),
6584 rdev->wowlan->patterns[i].mask) ||
6585 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6586 pat_len,
6587 rdev->wowlan->patterns[i].pattern))
6588 goto nla_put_failure;
ff1b6e69
JB		 6589 nla_nest_end(msg, nl_pat);
6590 }
6591 nla_nest_end(msg, nl_pats);
6592 }
6593
6594 nla_nest_end(msg, nl_wowlan);
6595 }
6596
6597 genlmsg_end(msg, hdr);
6598 return genlmsg_reply(msg, info);
6599
6600nla_put_failure:
6601 nlmsg_free(msg);
6602 return -ENOBUFS;
6603}
6604
6605static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6606{
6607 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6608 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6609 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6610 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6611 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6612 int err, i;
6d52563f 6613 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6614
6615 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6616 return -EOPNOTSUPP;
6617
ae33bd81
JB		 6618 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6619 cfg80211_rdev_free_wowlan(rdev);
6620 rdev->wowlan = NULL;
6621 goto set_wakeup;
6622 }
ff1b6e69
JB		 6623
6624 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6625 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6626 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6627 nl80211_wowlan_policy);
6628 if (err)
6629 return err;
6630
6631 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6632 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6633 return -EINVAL;
6634 new_triggers.any = true;
6635 }
6636
6637 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6638 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6639 return -EINVAL;
6640 new_triggers.disconnect = true;
6641 }
6642
6643 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6644 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6645 return -EINVAL;
6646 new_triggers.magic_pkt = true;
6647 }
6648
77dbbb13
JB		 6649 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6650 return -EINVAL;
6651
6652 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6653 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6654 return -EINVAL;
6655 new_triggers.gtk_rekey_failure = true;
6656 }
6657
6658 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6659 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6660 return -EINVAL;
6661 new_triggers.eap_identity_req = true;
6662 }
6663
6664 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6665 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6666 return -EINVAL;
6667 new_triggers.four_way_handshake = true;
6668 }
6669
6670 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6671 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6672 return -EINVAL;
6673 new_triggers.rfkill_release = true;
6674 }
6675
ff1b6e69
JB		 6676 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6677 struct nlattr *pat;
6678 int n_patterns = 0;
6679 int rem, pat_len, mask_len;
6680 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6681
6682 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6683 rem)
6684 n_patterns++;
6685 if (n_patterns > wowlan->n_patterns)
6686 return -EINVAL;
6687
6688 new_triggers.patterns = kcalloc(n_patterns,
6689 sizeof(new_triggers.patterns[0]),
6690 GFP_KERNEL);
6691 if (!new_triggers.patterns)
6692 return -ENOMEM;
6693
6694 new_triggers.n_patterns = n_patterns;
6695 i = 0;
6696
6697 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6698 rem) {
6699 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6700 nla_data(pat), nla_len(pat), NULL);
6701 err = -EINVAL;
6702 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6703 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6704 goto error;
6705 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6706 mask_len = DIV_ROUND_UP(pat_len, 8);
6707 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6708 mask_len)
6709 goto error;
6710 if (pat_len > wowlan->pattern_max_len ||
6711 pat_len < wowlan->pattern_min_len)
6712 goto error;
6713
6714 new_triggers.patterns[i].mask =
6715 kmalloc(mask_len + pat_len, GFP_KERNEL);
6716 if (!new_triggers.patterns[i].mask) {
6717 err = -ENOMEM;
6718 goto error;
6719 }
6720 new_triggers.patterns[i].pattern =
6721 new_triggers.patterns[i].mask + mask_len;
6722 memcpy(new_triggers.patterns[i].mask,
6723 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6724 mask_len);
6725 new_triggers.patterns[i].pattern_len = pat_len;
6726 memcpy(new_triggers.patterns[i].pattern,
6727 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6728 pat_len);
6729 i++;
6730 }
6731 }
6732
ae33bd81
JB		 6733 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6734 if (!ntrig) {
6735 err = -ENOMEM;
6736 goto error;
ff1b6e69 6737 }
ae33bd81
JB		 6738 cfg80211_rdev_free_wowlan(rdev);
6739 rdev->wowlan = ntrig;
ff1b6e69 6740
ae33bd81 6741 set_wakeup:
6d52563f
JB		 6742 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6743 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6744
ff1b6e69
JB		 6745 return 0;
6746 error:
6747 for (i = 0; i < new_triggers.n_patterns; i++)
6748 kfree(new_triggers.patterns[i].mask);
6749 kfree(new_triggers.patterns);
6750 return err;
6751}
dfb89c56 6752#endif
ff1b6e69 6753
e5497d76
JB		 6754static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6755{
6756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6757 struct net_device *dev = info->user_ptr[1];
6758 struct wireless_dev *wdev = dev->ieee80211_ptr;
6759 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6760 struct cfg80211_gtk_rekey_data rekey_data;
6761 int err;
6762
6763 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6764 return -EINVAL;
6765
6766 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6767 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6768 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6769 nl80211_rekey_policy);
6770 if (err)
6771 return err;
6772
6773 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6774 return -ERANGE;
6775 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6776 return -ERANGE;
6777 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6778 return -ERANGE;
6779
6780 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6781 NL80211_KEK_LEN);
6782 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6783 NL80211_KCK_LEN);
6784 memcpy(rekey_data.replay_ctr,
6785 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6786 NL80211_REPLAY_CTR_LEN);
6787
6788 wdev_lock(wdev);
6789 if (!wdev->current_bss) {
6790 err = -ENOTCONN;
6791 goto out;
6792 }
6793
6794 if (!rdev->ops->set_rekey_data) {
6795 err = -EOPNOTSUPP;
6796 goto out;
6797 }
6798
6799 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6800 out:
6801 wdev_unlock(wdev);
6802 return err;
6803}
6804
28946da7
JB		 6805static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6806 struct genl_info *info)
6807{
6808 struct net_device *dev = info->user_ptr[1];
6809 struct wireless_dev *wdev = dev->ieee80211_ptr;
6810
6811 if (wdev->iftype != NL80211_IFTYPE_AP &&
6812 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6813 return -EINVAL;
6814
15e47304 6815 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 6816 return -EBUSY;
6817
15e47304 6818 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 6819 return 0;
6820}
6821
7f6cf311
JB		 6822static int nl80211_probe_client(struct sk_buff *skb,
6823 struct genl_info *info)
6824{
6825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6826 struct net_device *dev = info->user_ptr[1];
6827 struct wireless_dev *wdev = dev->ieee80211_ptr;
6828 struct sk_buff *msg;
6829 void *hdr;
6830 const u8 *addr;
6831 u64 cookie;
6832 int err;
6833
6834 if (wdev->iftype != NL80211_IFTYPE_AP &&
6835 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6836 return -EOPNOTSUPP;
6837
6838 if (!info->attrs[NL80211_ATTR_MAC])
6839 return -EINVAL;
6840
6841 if (!rdev->ops->probe_client)
6842 return -EOPNOTSUPP;
6843
6844 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6845 if (!msg)
6846 return -ENOMEM;
6847
15e47304 6848 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 6849 NL80211_CMD_PROBE_CLIENT);
6850
6851 if (IS_ERR(hdr)) {
6852 err = PTR_ERR(hdr);
6853 goto free_msg;
6854 }
6855
6856 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6857
6858 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6859 if (err)
6860 goto free_msg;
6861
9360ffd1
DM		 6862 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6863 goto nla_put_failure;
7f6cf311
JB		 6864
6865 genlmsg_end(msg, hdr);
6866
6867 return genlmsg_reply(msg, info);
6868
6869 nla_put_failure:
6870 err = -ENOBUFS;
6871 free_msg:
6872 nlmsg_free(msg);
6873 return err;
6874}
6875
5e760230
JB		 6876static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6877{
6878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6879
6880 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6881 return -EOPNOTSUPP;
6882
15e47304 6883 if (rdev->ap_beacons_nlportid)
5e760230
JB		 6884 return -EBUSY;
6885
15e47304 6886 rdev->ap_beacons_nlportid = info->snd_portid;
5e760230
JB		 6887
6888 return 0;
6889}
6890
98104fde
JB		 6891static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
6892{
6893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6894 struct wireless_dev *wdev = info->user_ptr[1];
6895 int err;
6896
6897 if (!rdev->ops->start_p2p_device)
6898 return -EOPNOTSUPP;
6899
6900 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6901 return -EOPNOTSUPP;
6902
6903 if (wdev->p2p_started)
6904 return 0;
6905
6906 mutex_lock(&rdev->devlist_mtx);
6907 err = cfg80211_can_add_interface(rdev, wdev->iftype);
6908 mutex_unlock(&rdev->devlist_mtx);
6909 if (err)
6910 return err;
6911
6912 err = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);
6913 if (err)
6914 return err;
6915
6916 wdev->p2p_started = true;
6917 mutex_lock(&rdev->devlist_mtx);
6918 rdev->opencount++;
6919 mutex_unlock(&rdev->devlist_mtx);
6920
6921 return 0;
6922}
6923
6924static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
6925{
6926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6927 struct wireless_dev *wdev = info->user_ptr[1];
6928
6929 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6930 return -EOPNOTSUPP;
6931
6932 if (!rdev->ops->stop_p2p_device)
6933 return -EOPNOTSUPP;
6934
6935 if (!wdev->p2p_started)
6936 return 0;
6937
6938 rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
6939 wdev->p2p_started = false;
6940
6941 mutex_lock(&rdev->devlist_mtx);
6942 rdev->opencount--;
6943 mutex_unlock(&rdev->devlist_mtx);
6944
6945 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
6946 rdev->scan_req->aborted = true;
6947 ___cfg80211_scan_done(rdev, true);
6948 }
6949
6950 return 0;
6951}
6952
4c476991
JB		 6953#define NL80211_FLAG_NEED_WIPHY 0x01
6954#define NL80211_FLAG_NEED_NETDEV 0x02
6955#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6956#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6957#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6958 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 6959#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 6960/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 6961#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6962 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6963
6964static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6965 struct genl_info *info)
6966{
6967 struct cfg80211_registered_device *rdev;
89a54e48 6968 struct wireless_dev *wdev;
4c476991 6969 struct net_device *dev;
4c476991
JB		 6970 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6971
6972 if (rtnl)
6973 rtnl_lock();
6974
6975 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 6976 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 6977 if (IS_ERR(rdev)) {
6978 if (rtnl)
6979 rtnl_unlock();
6980 return PTR_ERR(rdev);
6981 }
6982 info->user_ptr[0] = rdev;
1bf614ef
JB		 6983 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
6984 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 6985 mutex_lock(&cfg80211_mutex);
6986 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6987 info->attrs);
6988 if (IS_ERR(wdev)) {
6989 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 6990 if (rtnl)
6991 rtnl_unlock();
89a54e48 6992 return PTR_ERR(wdev);
4c476991 6993 }
89a54e48 6994
89a54e48
JB		 6995 dev = wdev->netdev;
6996 rdev = wiphy_to_dev(wdev->wiphy);
6997
1bf614ef
JB		 6998 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6999 if (!dev) {
7000 mutex_unlock(&cfg80211_mutex);
7001 if (rtnl)
7002 rtnl_unlock();
7003 return -EINVAL;
7004 }
7005
7006 info->user_ptr[1] = dev;
7007 } else {
7008 info->user_ptr[1] = wdev;
41265714 7009 }
1bf614ef
JB		 7010
7011 if (dev) {
7012 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7013 !netif_running(dev)) {
7014 mutex_unlock(&cfg80211_mutex);
7015 if (rtnl)
7016 rtnl_unlock();
7017 return -ENETDOWN;
7018 }
7019
7020 dev_hold(dev);
98104fde
JB		 7021 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7022 if (!wdev->p2p_started) {
7023 mutex_unlock(&cfg80211_mutex);
7024 if (rtnl)
7025 rtnl_unlock();
7026 return -ENETDOWN;
7027 }
41265714 7028 }
89a54e48 7029
89a54e48
JB		 7030 cfg80211_lock_rdev(rdev);
7031
7032 mutex_unlock(&cfg80211_mutex);
7033
4c476991 7034 info->user_ptr[0] = rdev;
4c476991
JB		 7035 }
7036
7037 return 0;
7038}
7039
7040static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7041 struct genl_info *info)
7042{
7043 if (info->user_ptr[0])
7044 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7045 if (info->user_ptr[1]) {
7046 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7047 struct wireless_dev *wdev = info->user_ptr[1];
7048
7049 if (wdev->netdev)
7050 dev_put(wdev->netdev);
7051 } else {
7052 dev_put(info->user_ptr[1]);
7053 }
7054 }
4c476991
JB		 7055 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7056 rtnl_unlock();
7057}
7058
55682965
JB		 7059static struct genl_ops nl80211_ops[] = {
7060 {
7061 .cmd = NL80211_CMD_GET_WIPHY,
7062 .doit = nl80211_get_wiphy,
7063 .dumpit = nl80211_dump_wiphy,
7064 .policy = nl80211_policy,
7065 /* can be retrieved by unprivileged users */
4c476991 7066 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7067 },
7068 {
7069 .cmd = NL80211_CMD_SET_WIPHY,
7070 .doit = nl80211_set_wiphy,
7071 .policy = nl80211_policy,
7072 .flags = GENL_ADMIN_PERM,
4c476991 7073 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7074 },
7075 {
7076 .cmd = NL80211_CMD_GET_INTERFACE,
7077 .doit = nl80211_get_interface,
7078 .dumpit = nl80211_dump_interface,
7079 .policy = nl80211_policy,
7080 /* can be retrieved by unprivileged users */
72fb2abc 7081 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7082 },
7083 {
7084 .cmd = NL80211_CMD_SET_INTERFACE,
7085 .doit = nl80211_set_interface,
7086 .policy = nl80211_policy,
7087 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7088 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7089 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7090 },
7091 {
7092 .cmd = NL80211_CMD_NEW_INTERFACE,
7093 .doit = nl80211_new_interface,
7094 .policy = nl80211_policy,
7095 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7096 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7097 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7098 },
7099 {
7100 .cmd = NL80211_CMD_DEL_INTERFACE,
7101 .doit = nl80211_del_interface,
7102 .policy = nl80211_policy,
41ade00f 7103 .flags = GENL_ADMIN_PERM,
84efbb84 7104 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7105 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7106 },
7107 {
7108 .cmd = NL80211_CMD_GET_KEY,
7109 .doit = nl80211_get_key,
7110 .policy = nl80211_policy,
7111 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7112 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7113 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7114 },
7115 {
7116 .cmd = NL80211_CMD_SET_KEY,
7117 .doit = nl80211_set_key,
7118 .policy = nl80211_policy,
7119 .flags = GENL_ADMIN_PERM,
41265714 7120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7121 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7122 },
7123 {
7124 .cmd = NL80211_CMD_NEW_KEY,
7125 .doit = nl80211_new_key,
7126 .policy = nl80211_policy,
7127 .flags = GENL_ADMIN_PERM,
41265714 7128 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7129 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7130 },
7131 {
7132 .cmd = NL80211_CMD_DEL_KEY,
7133 .doit = nl80211_del_key,
7134 .policy = nl80211_policy,
55682965 7135 .flags = GENL_ADMIN_PERM,
41265714 7136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7137 NL80211_FLAG_NEED_RTNL,
55682965 7138 },
ed1b6cc7
JB		 7139 {
7140 .cmd = NL80211_CMD_SET_BEACON,
7141 .policy = nl80211_policy,
7142 .flags = GENL_ADMIN_PERM,
8860020e 7143 .doit = nl80211_set_beacon,
2b5f8b0b 7144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7145 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7146 },
7147 {
8860020e 7148 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7149 .policy = nl80211_policy,
7150 .flags = GENL_ADMIN_PERM,
8860020e 7151 .doit = nl80211_start_ap,
2b5f8b0b 7152 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7153 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7154 },
7155 {
8860020e 7156 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7157 .policy = nl80211_policy,
7158 .flags = GENL_ADMIN_PERM,
8860020e 7159 .doit = nl80211_stop_ap,
2b5f8b0b 7160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7161 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7162 },
5727ef1b
JB		 7163 {
7164 .cmd = NL80211_CMD_GET_STATION,
7165 .doit = nl80211_get_station,
2ec600d6 7166 .dumpit = nl80211_dump_station,
5727ef1b 7167 .policy = nl80211_policy,
4c476991
JB		 7168 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7169 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7170 },
7171 {
7172 .cmd = NL80211_CMD_SET_STATION,
7173 .doit = nl80211_set_station,
7174 .policy = nl80211_policy,
7175 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7177 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7178 },
7179 {
7180 .cmd = NL80211_CMD_NEW_STATION,
7181 .doit = nl80211_new_station,
7182 .policy = nl80211_policy,
7183 .flags = GENL_ADMIN_PERM,
41265714 7184 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7185 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7186 },
7187 {
7188 .cmd = NL80211_CMD_DEL_STATION,
7189 .doit = nl80211_del_station,
7190 .policy = nl80211_policy,
2ec600d6 7191 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7192 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7193 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7194 },
7195 {
7196 .cmd = NL80211_CMD_GET_MPATH,
7197 .doit = nl80211_get_mpath,
7198 .dumpit = nl80211_dump_mpath,
7199 .policy = nl80211_policy,
7200 .flags = GENL_ADMIN_PERM,
41265714 7201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7202 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7203 },
7204 {
7205 .cmd = NL80211_CMD_SET_MPATH,
7206 .doit = nl80211_set_mpath,
7207 .policy = nl80211_policy,
7208 .flags = GENL_ADMIN_PERM,
41265714 7209 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7210 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7211 },
7212 {
7213 .cmd = NL80211_CMD_NEW_MPATH,
7214 .doit = nl80211_new_mpath,
7215 .policy = nl80211_policy,
7216 .flags = GENL_ADMIN_PERM,
41265714 7217 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7218 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7219 },
7220 {
7221 .cmd = NL80211_CMD_DEL_MPATH,
7222 .doit = nl80211_del_mpath,
7223 .policy = nl80211_policy,
9f1ba906 7224 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7226 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7227 },
7228 {
7229 .cmd = NL80211_CMD_SET_BSS,
7230 .doit = nl80211_set_bss,
7231 .policy = nl80211_policy,
b2e1b302 7232 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7234 NL80211_FLAG_NEED_RTNL,
b2e1b302 7235 },
f130347c
LR		 7236 {
7237 .cmd = NL80211_CMD_GET_REG,
7238 .doit = nl80211_get_reg,
7239 .policy = nl80211_policy,
7240 /* can be retrieved by unprivileged users */
7241 },
b2e1b302
LR		 7242 {
7243 .cmd = NL80211_CMD_SET_REG,
7244 .doit = nl80211_set_reg,
7245 .policy = nl80211_policy,
7246 .flags = GENL_ADMIN_PERM,
7247 },
7248 {
7249 .cmd = NL80211_CMD_REQ_SET_REG,
7250 .doit = nl80211_req_set_reg,
7251 .policy = nl80211_policy,
93da9cc1 7252 .flags = GENL_ADMIN_PERM,
7253 },
7254 {
24bdd9f4
JC		 7255 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7256 .doit = nl80211_get_mesh_config,
93da9cc1 7257 .policy = nl80211_policy,
7258 /* can be retrieved by unprivileged users */
2b5f8b0b 7259 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7260 NL80211_FLAG_NEED_RTNL,
93da9cc1 7261 },
7262 {
24bdd9f4
JC		 7263 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7264 .doit = nl80211_update_mesh_config,
93da9cc1 7265 .policy = nl80211_policy,
9aed3cc1 7266 .flags = GENL_ADMIN_PERM,
29cbe68c 7267 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7268 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7269 },
2a519311
JB		 7270 {
7271 .cmd = NL80211_CMD_TRIGGER_SCAN,
7272 .doit = nl80211_trigger_scan,
7273 .policy = nl80211_policy,
7274 .flags = GENL_ADMIN_PERM,
fd014284 7275 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7276 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7277 },
7278 {
7279 .cmd = NL80211_CMD_GET_SCAN,
7280 .policy = nl80211_policy,
7281 .dumpit = nl80211_dump_scan,
7282 },
807f8a8c
LC		 7283 {
7284 .cmd = NL80211_CMD_START_SCHED_SCAN,
7285 .doit = nl80211_start_sched_scan,
7286 .policy = nl80211_policy,
7287 .flags = GENL_ADMIN_PERM,
7288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7289 NL80211_FLAG_NEED_RTNL,
7290 },
7291 {
7292 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7293 .doit = nl80211_stop_sched_scan,
7294 .policy = nl80211_policy,
7295 .flags = GENL_ADMIN_PERM,
7296 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7297 NL80211_FLAG_NEED_RTNL,
7298 },
636a5d36
JM		 7299 {
7300 .cmd = NL80211_CMD_AUTHENTICATE,
7301 .doit = nl80211_authenticate,
7302 .policy = nl80211_policy,
7303 .flags = GENL_ADMIN_PERM,
41265714 7304 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7305 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7306 },
7307 {
7308 .cmd = NL80211_CMD_ASSOCIATE,
7309 .doit = nl80211_associate,
7310 .policy = nl80211_policy,
7311 .flags = GENL_ADMIN_PERM,
41265714 7312 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7313 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7314 },
7315 {
7316 .cmd = NL80211_CMD_DEAUTHENTICATE,
7317 .doit = nl80211_deauthenticate,
7318 .policy = nl80211_policy,
7319 .flags = GENL_ADMIN_PERM,
41265714 7320 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7321 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7322 },
7323 {
7324 .cmd = NL80211_CMD_DISASSOCIATE,
7325 .doit = nl80211_disassociate,
7326 .policy = nl80211_policy,
7327 .flags = GENL_ADMIN_PERM,
41265714 7328 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7329 NL80211_FLAG_NEED_RTNL,
636a5d36 7330 },
04a773ad
JB		 7331 {
7332 .cmd = NL80211_CMD_JOIN_IBSS,
7333 .doit = nl80211_join_ibss,
7334 .policy = nl80211_policy,
7335 .flags = GENL_ADMIN_PERM,
41265714 7336 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7337 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7338 },
7339 {
7340 .cmd = NL80211_CMD_LEAVE_IBSS,
7341 .doit = nl80211_leave_ibss,
7342 .policy = nl80211_policy,
7343 .flags = GENL_ADMIN_PERM,
41265714 7344 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7345 NL80211_FLAG_NEED_RTNL,
04a773ad 7346 },
aff89a9b
JB		 7347#ifdef CONFIG_NL80211_TESTMODE
7348 {
7349 .cmd = NL80211_CMD_TESTMODE,
7350 .doit = nl80211_testmode_do,
71063f0e 7351 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7352 .policy = nl80211_policy,
7353 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7354 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7355 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7356 },
7357#endif
b23aa676
SO		 7358 {
7359 .cmd = NL80211_CMD_CONNECT,
7360 .doit = nl80211_connect,
7361 .policy = nl80211_policy,
7362 .flags = GENL_ADMIN_PERM,
41265714 7363 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7364 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7365 },
7366 {
7367 .cmd = NL80211_CMD_DISCONNECT,
7368 .doit = nl80211_disconnect,
7369 .policy = nl80211_policy,
7370 .flags = GENL_ADMIN_PERM,
41265714 7371 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7372 NL80211_FLAG_NEED_RTNL,
b23aa676 7373 },
463d0183
JB		 7374 {
7375 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7376 .doit = nl80211_wiphy_netns,
7377 .policy = nl80211_policy,
7378 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7379 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7380 NL80211_FLAG_NEED_RTNL,
463d0183 7381 },
61fa713c
HS		 7382 {
7383 .cmd = NL80211_CMD_GET_SURVEY,
7384 .policy = nl80211_policy,
7385 .dumpit = nl80211_dump_survey,
7386 },
67fbb16b
SO		 7387 {
7388 .cmd = NL80211_CMD_SET_PMKSA,
7389 .doit = nl80211_setdel_pmksa,
7390 .policy = nl80211_policy,
7391 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7393 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7394 },
7395 {
7396 .cmd = NL80211_CMD_DEL_PMKSA,
7397 .doit = nl80211_setdel_pmksa,
7398 .policy = nl80211_policy,
7399 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7401 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7402 },
7403 {
7404 .cmd = NL80211_CMD_FLUSH_PMKSA,
7405 .doit = nl80211_flush_pmksa,
7406 .policy = nl80211_policy,
7407 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7409 NL80211_FLAG_NEED_RTNL,
67fbb16b 7410 },
9588bbd5
JM		 7411 {
7412 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7413 .doit = nl80211_remain_on_channel,
7414 .policy = nl80211_policy,
7415 .flags = GENL_ADMIN_PERM,
71bbc994 7416 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7417 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7418 },
7419 {
7420 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7421 .doit = nl80211_cancel_remain_on_channel,
7422 .policy = nl80211_policy,
7423 .flags = GENL_ADMIN_PERM,
71bbc994 7424 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7425 NL80211_FLAG_NEED_RTNL,
9588bbd5 7426 },
13ae75b1
JM		 7427 {
7428 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7429 .doit = nl80211_set_tx_bitrate_mask,
7430 .policy = nl80211_policy,
7431 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7432 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7433 NL80211_FLAG_NEED_RTNL,
13ae75b1 7434 },
026331c4 7435 {
2e161f78
JB		 7436 .cmd = NL80211_CMD_REGISTER_FRAME,
7437 .doit = nl80211_register_mgmt,
026331c4
JM		 7438 .policy = nl80211_policy,
7439 .flags = GENL_ADMIN_PERM,
71bbc994 7440 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7441 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7442 },
7443 {
2e161f78
JB		 7444 .cmd = NL80211_CMD_FRAME,
7445 .doit = nl80211_tx_mgmt,
026331c4 7446 .policy = nl80211_policy,
f7ca38df 7447 .flags = GENL_ADMIN_PERM,
71bbc994 7448 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7449 NL80211_FLAG_NEED_RTNL,
7450 },
7451 {
7452 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7453 .doit = nl80211_tx_mgmt_cancel_wait,
7454 .policy = nl80211_policy,
026331c4 7455 .flags = GENL_ADMIN_PERM,
71bbc994 7456 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7457 NL80211_FLAG_NEED_RTNL,
026331c4 7458 },
ffb9eb3d
KV		 7459 {
7460 .cmd = NL80211_CMD_SET_POWER_SAVE,
7461 .doit = nl80211_set_power_save,
7462 .policy = nl80211_policy,
7463 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7464 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7465 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7466 },
7467 {
7468 .cmd = NL80211_CMD_GET_POWER_SAVE,
7469 .doit = nl80211_get_power_save,
7470 .policy = nl80211_policy,
7471 /* can be retrieved by unprivileged users */
4c476991
JB		 7472 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7473 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7474 },
d6dc1a38
JO		 7475 {
7476 .cmd = NL80211_CMD_SET_CQM,
7477 .doit = nl80211_set_cqm,
7478 .policy = nl80211_policy,
7479 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7480 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7481 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7482 },
f444de05
JB		 7483 {
7484 .cmd = NL80211_CMD_SET_CHANNEL,
7485 .doit = nl80211_set_channel,
7486 .policy = nl80211_policy,
7487 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7488 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7489 NL80211_FLAG_NEED_RTNL,
f444de05 7490 },
e8347eba
BJ		 7491 {
7492 .cmd = NL80211_CMD_SET_WDS_PEER,
7493 .doit = nl80211_set_wds_peer,
7494 .policy = nl80211_policy,
7495 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7496 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7497 NL80211_FLAG_NEED_RTNL,
e8347eba 7498 },
29cbe68c
JB		 7499 {
7500 .cmd = NL80211_CMD_JOIN_MESH,
7501 .doit = nl80211_join_mesh,
7502 .policy = nl80211_policy,
7503 .flags = GENL_ADMIN_PERM,
7504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7505 NL80211_FLAG_NEED_RTNL,
7506 },
7507 {
7508 .cmd = NL80211_CMD_LEAVE_MESH,
7509 .doit = nl80211_leave_mesh,
7510 .policy = nl80211_policy,
7511 .flags = GENL_ADMIN_PERM,
7512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7513 NL80211_FLAG_NEED_RTNL,
7514 },
dfb89c56 7515#ifdef CONFIG_PM
ff1b6e69
JB		 7516 {
7517 .cmd = NL80211_CMD_GET_WOWLAN,
7518 .doit = nl80211_get_wowlan,
7519 .policy = nl80211_policy,
7520 /* can be retrieved by unprivileged users */
7521 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7522 NL80211_FLAG_NEED_RTNL,
7523 },
7524 {
7525 .cmd = NL80211_CMD_SET_WOWLAN,
7526 .doit = nl80211_set_wowlan,
7527 .policy = nl80211_policy,
7528 .flags = GENL_ADMIN_PERM,
7529 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7530 NL80211_FLAG_NEED_RTNL,
7531 },
dfb89c56 7532#endif
e5497d76
JB		 7533 {
7534 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7535 .doit = nl80211_set_rekey_data,
7536 .policy = nl80211_policy,
7537 .flags = GENL_ADMIN_PERM,
7538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7539 NL80211_FLAG_NEED_RTNL,
7540 },
109086ce
AN		 7541 {
7542 .cmd = NL80211_CMD_TDLS_MGMT,
7543 .doit = nl80211_tdls_mgmt,
7544 .policy = nl80211_policy,
7545 .flags = GENL_ADMIN_PERM,
7546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7547 NL80211_FLAG_NEED_RTNL,
7548 },
7549 {
7550 .cmd = NL80211_CMD_TDLS_OPER,
7551 .doit = nl80211_tdls_oper,
7552 .policy = nl80211_policy,
7553 .flags = GENL_ADMIN_PERM,
7554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7555 NL80211_FLAG_NEED_RTNL,
7556 },
28946da7
JB		 7557 {
7558 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7559 .doit = nl80211_register_unexpected_frame,
7560 .policy = nl80211_policy,
7561 .flags = GENL_ADMIN_PERM,
7562 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7563 NL80211_FLAG_NEED_RTNL,
7564 },
7f6cf311
JB		 7565 {
7566 .cmd = NL80211_CMD_PROBE_CLIENT,
7567 .doit = nl80211_probe_client,
7568 .policy = nl80211_policy,
7569 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7570 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7571 NL80211_FLAG_NEED_RTNL,
7572 },
5e760230
JB		 7573 {
7574 .cmd = NL80211_CMD_REGISTER_BEACONS,
7575 .doit = nl80211_register_beacons,
7576 .policy = nl80211_policy,
7577 .flags = GENL_ADMIN_PERM,
7578 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7579 NL80211_FLAG_NEED_RTNL,
7580 },
1d9d9213
SW		 7581 {
7582 .cmd = NL80211_CMD_SET_NOACK_MAP,
7583 .doit = nl80211_set_noack_map,
7584 .policy = nl80211_policy,
7585 .flags = GENL_ADMIN_PERM,
7586 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7587 NL80211_FLAG_NEED_RTNL,
7588 },
98104fde
JB		 7589 {
7590 .cmd = NL80211_CMD_START_P2P_DEVICE,
7591 .doit = nl80211_start_p2p_device,
7592 .policy = nl80211_policy,
7593 .flags = GENL_ADMIN_PERM,
7594 .internal_flags = NL80211_FLAG_NEED_WDEV |
7595 NL80211_FLAG_NEED_RTNL,
7596 },
7597 {
7598 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7599 .doit = nl80211_stop_p2p_device,
7600 .policy = nl80211_policy,
7601 .flags = GENL_ADMIN_PERM,
7602 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7603 NL80211_FLAG_NEED_RTNL,
7604 },
55682965 7605};
9588bbd5 7606
6039f6d2
JM		 7607static struct genl_multicast_group nl80211_mlme_mcgrp = {
7608 .name = "mlme",
7609};
55682965
JB		 7610
7611/* multicast groups */
7612static struct genl_multicast_group nl80211_config_mcgrp = {
7613 .name = "config",
7614};
2a519311
JB		 7615static struct genl_multicast_group nl80211_scan_mcgrp = {
7616 .name = "scan",
7617};
73d54c9e
LR		 7618static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7619 .name = "regulatory",
7620};
55682965
JB		 7621
7622/* notification functions */
7623
7624void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7625{
7626 struct sk_buff *msg;
7627
fd2120ca 7628 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7629 if (!msg)
7630 return;
7631
7632 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7633 nlmsg_free(msg);
7634 return;
7635 }
7636
463d0183
JB		 7637 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7638 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7639}
7640
362a415d
JB		 7641static int nl80211_add_scan_req(struct sk_buff *msg,
7642 struct cfg80211_registered_device *rdev)
7643{
7644 struct cfg80211_scan_request *req = rdev->scan_req;
7645 struct nlattr *nest;
7646 int i;
7647
667503dd
JB		 7648 ASSERT_RDEV_LOCK(rdev);
7649
362a415d
JB		 7650 if (WARN_ON(!req))
7651 return 0;
7652
7653 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7654 if (!nest)
7655 goto nla_put_failure;
9360ffd1
DM		 7656 for (i = 0; i < req->n_ssids; i++) {
7657 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7658 goto nla_put_failure;
7659 }
362a415d
JB		 7660 nla_nest_end(msg, nest);
7661
7662 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7663 if (!nest)
7664 goto nla_put_failure;
9360ffd1
DM		 7665 for (i = 0; i < req->n_channels; i++) {
7666 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7667 goto nla_put_failure;
7668 }
362a415d
JB		 7669 nla_nest_end(msg, nest);
7670
9360ffd1
DM		 7671 if (req->ie &&
7672 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7673 goto nla_put_failure;
362a415d 7674
ed473771
SL		 7675 if (req->flags)
7676 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7677
362a415d
JB		 7678 return 0;
7679 nla_put_failure:
7680 return -ENOBUFS;
7681}
7682
a538e2d5
JB		 7683static int nl80211_send_scan_msg(struct sk_buff *msg,
7684 struct cfg80211_registered_device *rdev,
fd014284 7685 struct wireless_dev *wdev,
15e47304 7686 u32 portid, u32 seq, int flags,
a538e2d5 7687 u32 cmd)
2a519311
JB		 7688{
7689 void *hdr;
7690
15e47304 7691 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7692 if (!hdr)
7693 return -1;
7694
9360ffd1 7695 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7696 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7697 wdev->netdev->ifindex)) ||
7698 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7699 goto nla_put_failure;
2a519311 7700
362a415d
JB		 7701 /* ignore errors and send incomplete event anyway */
7702 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7703
7704 return genlmsg_end(msg, hdr);
7705
7706 nla_put_failure:
7707 genlmsg_cancel(msg, hdr);
7708 return -EMSGSIZE;
7709}
7710
807f8a8c
LC		 7711static int
7712nl80211_send_sched_scan_msg(struct sk_buff *msg,
7713 struct cfg80211_registered_device *rdev,
7714 struct net_device *netdev,
15e47304 7715 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7716{
7717 void *hdr;
7718
15e47304 7719 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7720 if (!hdr)
7721 return -1;
7722
9360ffd1
DM		 7723 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7724 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7725 goto nla_put_failure;
807f8a8c
LC		 7726
7727 return genlmsg_end(msg, hdr);
7728
7729 nla_put_failure:
7730 genlmsg_cancel(msg, hdr);
7731 return -EMSGSIZE;
7732}
7733
a538e2d5 7734void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7735 struct wireless_dev *wdev)
a538e2d5
JB		 7736{
7737 struct sk_buff *msg;
7738
58050fce 7739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7740 if (!msg)
7741 return;
7742
fd014284 7743 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7744 NL80211_CMD_TRIGGER_SCAN) < 0) {
7745 nlmsg_free(msg);
7746 return;
7747 }
7748
463d0183
JB		 7749 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7750 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7751}
7752
2a519311 7753void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 7754 struct wireless_dev *wdev)
2a519311
JB		 7755{
7756 struct sk_buff *msg;
7757
fd2120ca 7758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7759 if (!msg)
7760 return;
7761
fd014284 7762 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7763 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7764 nlmsg_free(msg);
7765 return;
7766 }
7767
463d0183
JB		 7768 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7769 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7770}
7771
7772void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 7773 struct wireless_dev *wdev)
2a519311
JB		 7774{
7775 struct sk_buff *msg;
7776
fd2120ca 7777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7778 if (!msg)
7779 return;
7780
fd014284 7781 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7782 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7783 nlmsg_free(msg);
7784 return;
7785 }
7786
463d0183
JB		 7787 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7788 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7789}
7790
807f8a8c
LC		 7791void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7792 struct net_device *netdev)
7793{
7794 struct sk_buff *msg;
7795
7796 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7797 if (!msg)
7798 return;
7799
7800 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7801 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7802 nlmsg_free(msg);
7803 return;
7804 }
7805
7806 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7807 nl80211_scan_mcgrp.id, GFP_KERNEL);
7808}
7809
7810void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7811 struct net_device *netdev, u32 cmd)
7812{
7813 struct sk_buff *msg;
7814
58050fce 7815 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 7816 if (!msg)
7817 return;
7818
7819 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 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
73d54c9e
LR		 7828/*
7829 * This can happen on global regulatory changes or device specific settings
7830 * based on custom world regulatory domains.
7831 */
7832void nl80211_send_reg_change_event(struct regulatory_request *request)
7833{
7834 struct sk_buff *msg;
7835 void *hdr;
7836
fd2120ca 7837 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7838 if (!msg)
7839 return;
7840
7841 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7842 if (!hdr) {
7843 nlmsg_free(msg);
7844 return;
7845 }
7846
7847 /* Userspace can always count this one always being set */
9360ffd1
DM		 7848 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7849 goto nla_put_failure;
7850
7851 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7852 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7853 NL80211_REGDOM_TYPE_WORLD))
7854 goto nla_put_failure;
7855 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7856 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7857 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7858 goto nla_put_failure;
7859 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7860 request->intersect) {
7861 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7862 NL80211_REGDOM_TYPE_INTERSECTION))
7863 goto nla_put_failure;
7864 } else {
7865 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7866 NL80211_REGDOM_TYPE_COUNTRY) ||
7867 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7868 request->alpha2))
7869 goto nla_put_failure;
7870 }
7871
7872 if (wiphy_idx_valid(request->wiphy_idx) &&
7873 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7874 goto nla_put_failure;
73d54c9e 7875
3b7b72ee 7876 genlmsg_end(msg, hdr);
73d54c9e 7877
bc43b28c 7878 rcu_read_lock();
463d0183 7879 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7880 GFP_ATOMIC);
7881 rcu_read_unlock();
73d54c9e
LR		 7882
7883 return;
7884
7885nla_put_failure:
7886 genlmsg_cancel(msg, hdr);
7887 nlmsg_free(msg);
7888}
7889
6039f6d2
JM		 7890static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7891 struct net_device *netdev,
7892 const u8 *buf, size_t len,
e6d6e342 7893 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7894{
7895 struct sk_buff *msg;
7896 void *hdr;
7897
e6d6e342 7898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7899 if (!msg)
7900 return;
7901
7902 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7903 if (!hdr) {
7904 nlmsg_free(msg);
7905 return;
7906 }
7907
9360ffd1
DM		 7908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7909 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7910 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7911 goto nla_put_failure;
6039f6d2 7912
3b7b72ee 7913 genlmsg_end(msg, hdr);
6039f6d2 7914
463d0183
JB		 7915 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7916 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7917 return;
7918
7919 nla_put_failure:
7920 genlmsg_cancel(msg, hdr);
7921 nlmsg_free(msg);
7922}
7923
7924void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7925 struct net_device *netdev, const u8 *buf,
7926 size_t len, gfp_t gfp)
6039f6d2
JM		 7927{
7928 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7929 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7930}
7931
7932void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7933 struct net_device *netdev, const u8 *buf,
e6d6e342 7934 size_t len, gfp_t gfp)
6039f6d2 7935{
e6d6e342
JB		 7936 nl80211_send_mlme_event(rdev, netdev, buf, len,
7937 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7938}
7939
53b46b84 7940void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7941 struct net_device *netdev, const u8 *buf,
7942 size_t len, gfp_t gfp)
6039f6d2
JM		 7943{
7944 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7945 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7946}
7947
53b46b84
JM		 7948void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7949 struct net_device *netdev, const u8 *buf,
e6d6e342 7950 size_t len, gfp_t gfp)
6039f6d2
JM		 7951{
7952 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7953 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7954}
7955
cf4e594e
JM		 7956void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7957 struct net_device *netdev, const u8 *buf,
7958 size_t len, gfp_t gfp)
7959{
7960 nl80211_send_mlme_event(rdev, netdev, buf, len,
7961 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7962}
7963
7964void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7965 struct net_device *netdev, const u8 *buf,
7966 size_t len, gfp_t gfp)
7967{
7968 nl80211_send_mlme_event(rdev, netdev, buf, len,
7969 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7970}
7971
1b06bb40
LR		 7972static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7973 struct net_device *netdev, int cmd,
e6d6e342 7974 const u8 *addr, gfp_t gfp)
1965c853
JM		 7975{
7976 struct sk_buff *msg;
7977 void *hdr;
7978
e6d6e342 7979 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7980 if (!msg)
7981 return;
7982
7983 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7984 if (!hdr) {
7985 nlmsg_free(msg);
7986 return;
7987 }
7988
9360ffd1
DM		 7989 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7990 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7991 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7992 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7993 goto nla_put_failure;
1965c853 7994
3b7b72ee 7995 genlmsg_end(msg, hdr);
1965c853 7996
463d0183
JB		 7997 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7998 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7999 return;
8000
8001 nla_put_failure:
8002 genlmsg_cancel(msg, hdr);
8003 nlmsg_free(msg);
8004}
8005
8006void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8007 struct net_device *netdev, const u8 *addr,
8008 gfp_t gfp)
1965c853
JM		 8009{
8010 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8011 addr, gfp);
1965c853
JM		 8012}
8013
8014void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8015 struct net_device *netdev, const u8 *addr,
8016 gfp_t gfp)
1965c853 8017{
e6d6e342
JB		 8018 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8019 addr, gfp);
1965c853
JM		 8020}
8021
b23aa676
SO		 8022void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8023 struct net_device *netdev, const u8 *bssid,
8024 const u8 *req_ie, size_t req_ie_len,
8025 const u8 *resp_ie, size_t resp_ie_len,
8026 u16 status, gfp_t gfp)
8027{
8028 struct sk_buff *msg;
8029 void *hdr;
8030
58050fce 8031 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8032 if (!msg)
8033 return;
8034
8035 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8036 if (!hdr) {
8037 nlmsg_free(msg);
8038 return;
8039 }
8040
9360ffd1
DM		 8041 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8042 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8043 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8044 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8045 (req_ie &&
8046 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8047 (resp_ie &&
8048 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8049 goto nla_put_failure;
b23aa676 8050
3b7b72ee 8051 genlmsg_end(msg, hdr);
b23aa676 8052
463d0183
JB		 8053 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8054 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8055 return;
8056
8057 nla_put_failure:
8058 genlmsg_cancel(msg, hdr);
8059 nlmsg_free(msg);
8060
8061}
8062
8063void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8064 struct net_device *netdev, const u8 *bssid,
8065 const u8 *req_ie, size_t req_ie_len,
8066 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8067{
8068 struct sk_buff *msg;
8069 void *hdr;
8070
58050fce 8071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8072 if (!msg)
8073 return;
8074
8075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8076 if (!hdr) {
8077 nlmsg_free(msg);
8078 return;
8079 }
8080
9360ffd1
DM		 8081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8083 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8084 (req_ie &&
8085 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8086 (resp_ie &&
8087 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8088 goto nla_put_failure;
b23aa676 8089
3b7b72ee 8090 genlmsg_end(msg, hdr);
b23aa676 8091
463d0183
JB		 8092 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8093 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8094 return;
8095
8096 nla_put_failure:
8097 genlmsg_cancel(msg, hdr);
8098 nlmsg_free(msg);
8099
8100}
8101
8102void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8103 struct net_device *netdev, u16 reason,
667503dd 8104 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8105{
8106 struct sk_buff *msg;
8107 void *hdr;
8108
58050fce 8109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8110 if (!msg)
8111 return;
8112
8113 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8114 if (!hdr) {
8115 nlmsg_free(msg);
8116 return;
8117 }
8118
9360ffd1
DM		 8119 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8120 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8121 (from_ap && reason &&
8122 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8123 (from_ap &&
8124 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8125 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8126 goto nla_put_failure;
b23aa676 8127
3b7b72ee 8128 genlmsg_end(msg, hdr);
b23aa676 8129
463d0183
JB		 8130 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8131 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8132 return;
8133
8134 nla_put_failure:
8135 genlmsg_cancel(msg, hdr);
8136 nlmsg_free(msg);
8137
8138}
8139
04a773ad
JB		 8140void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8141 struct net_device *netdev, const u8 *bssid,
8142 gfp_t gfp)
8143{
8144 struct sk_buff *msg;
8145 void *hdr;
8146
fd2120ca 8147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8148 if (!msg)
8149 return;
8150
8151 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8152 if (!hdr) {
8153 nlmsg_free(msg);
8154 return;
8155 }
8156
9360ffd1
DM		 8157 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8158 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8159 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8160 goto nla_put_failure;
04a773ad 8161
3b7b72ee 8162 genlmsg_end(msg, hdr);
04a773ad 8163
463d0183
JB		 8164 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8165 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8166 return;
8167
8168 nla_put_failure:
8169 genlmsg_cancel(msg, hdr);
8170 nlmsg_free(msg);
8171}
8172
c93b5e71
JC		 8173void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8174 struct net_device *netdev,
8175 const u8 *macaddr, const u8* ie, u8 ie_len,
8176 gfp_t gfp)
8177{
8178 struct sk_buff *msg;
8179 void *hdr;
8180
8181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8182 if (!msg)
8183 return;
8184
8185 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8186 if (!hdr) {
8187 nlmsg_free(msg);
8188 return;
8189 }
8190
9360ffd1
DM		 8191 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8192 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8193 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8194 (ie_len && ie &&
8195 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8196 goto nla_put_failure;
c93b5e71 8197
3b7b72ee 8198 genlmsg_end(msg, hdr);
c93b5e71
JC		 8199
8200 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8201 nl80211_mlme_mcgrp.id, gfp);
8202 return;
8203
8204 nla_put_failure:
8205 genlmsg_cancel(msg, hdr);
8206 nlmsg_free(msg);
8207}
8208
a3b8b056
JM		 8209void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8210 struct net_device *netdev, const u8 *addr,
8211 enum nl80211_key_type key_type, int key_id,
e6d6e342 8212 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8213{
8214 struct sk_buff *msg;
8215 void *hdr;
8216
e6d6e342 8217 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8218 if (!msg)
8219 return;
8220
8221 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8222 if (!hdr) {
8223 nlmsg_free(msg);
8224 return;
8225 }
8226
9360ffd1
DM		 8227 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8228 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8229 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8230 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8231 (key_id != -1 &&
8232 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8233 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8234 goto nla_put_failure;
a3b8b056 8235
3b7b72ee 8236 genlmsg_end(msg, hdr);
a3b8b056 8237
463d0183
JB		 8238 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8239 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8240 return;
8241
8242 nla_put_failure:
8243 genlmsg_cancel(msg, hdr);
8244 nlmsg_free(msg);
8245}
8246
6bad8766
LR		 8247void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8248 struct ieee80211_channel *channel_before,
8249 struct ieee80211_channel *channel_after)
8250{
8251 struct sk_buff *msg;
8252 void *hdr;
8253 struct nlattr *nl_freq;
8254
fd2120ca 8255 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8256 if (!msg)
8257 return;
8258
8259 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8260 if (!hdr) {
8261 nlmsg_free(msg);
8262 return;
8263 }
8264
8265 /*
8266 * Since we are applying the beacon hint to a wiphy we know its
8267 * wiphy_idx is valid
8268 */
9360ffd1
DM		 8269 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8270 goto nla_put_failure;
6bad8766
LR		 8271
8272 /* Before */
8273 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8274 if (!nl_freq)
8275 goto nla_put_failure;
8276 if (nl80211_msg_put_channel(msg, channel_before))
8277 goto nla_put_failure;
8278 nla_nest_end(msg, nl_freq);
8279
8280 /* After */
8281 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8282 if (!nl_freq)
8283 goto nla_put_failure;
8284 if (nl80211_msg_put_channel(msg, channel_after))
8285 goto nla_put_failure;
8286 nla_nest_end(msg, nl_freq);
8287
3b7b72ee 8288 genlmsg_end(msg, hdr);
6bad8766 8289
463d0183
JB		 8290 rcu_read_lock();
8291 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8292 GFP_ATOMIC);
8293 rcu_read_unlock();
6bad8766
LR		 8294
8295 return;
8296
8297nla_put_failure:
8298 genlmsg_cancel(msg, hdr);
8299 nlmsg_free(msg);
8300}
8301
9588bbd5
JM		 8302static void nl80211_send_remain_on_chan_event(
8303 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8304 struct wireless_dev *wdev, u64 cookie,
9588bbd5
JM		 8305 struct ieee80211_channel *chan,
8306 enum nl80211_channel_type channel_type,
8307 unsigned int duration, gfp_t gfp)
8308{
8309 struct sk_buff *msg;
8310 void *hdr;
8311
8312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8313 if (!msg)
8314 return;
8315
8316 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8317 if (!hdr) {
8318 nlmsg_free(msg);
8319 return;
8320 }
8321
9360ffd1 8322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8323 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8324 wdev->netdev->ifindex)) ||
00f53350 8325 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 8326 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8327 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8328 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8329 goto nla_put_failure;
9588bbd5 8330
9360ffd1
DM		 8331 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8332 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8333 goto nla_put_failure;
9588bbd5 8334
3b7b72ee 8335 genlmsg_end(msg, hdr);
9588bbd5
JM		 8336
8337 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8338 nl80211_mlme_mcgrp.id, gfp);
8339 return;
8340
8341 nla_put_failure:
8342 genlmsg_cancel(msg, hdr);
8343 nlmsg_free(msg);
8344}
8345
8346void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8347 struct wireless_dev *wdev, u64 cookie,
9588bbd5
JM		 8348 struct ieee80211_channel *chan,
8349 enum nl80211_channel_type channel_type,
8350 unsigned int duration, gfp_t gfp)
8351{
8352 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8353 rdev, wdev, cookie, chan,
9588bbd5
JM		 8354 channel_type, duration, gfp);
8355}
8356
8357void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8358 struct cfg80211_registered_device *rdev,
8359 struct wireless_dev *wdev,
9588bbd5
JM		 8360 u64 cookie, struct ieee80211_channel *chan,
8361 enum nl80211_channel_type channel_type, gfp_t gfp)
8362{
8363 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
71bbc994 8364 rdev, wdev, cookie, chan,
9588bbd5
JM		 8365 channel_type, 0, gfp);
8366}
8367
98b62183
JB		 8368void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8369 struct net_device *dev, const u8 *mac_addr,
8370 struct station_info *sinfo, gfp_t gfp)
8371{
8372 struct sk_buff *msg;
8373
58050fce 8374 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8375 if (!msg)
8376 return;
8377
66266b3a
JL		 8378 if (nl80211_send_station(msg, 0, 0, 0,
8379 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8380 nlmsg_free(msg);
8381 return;
8382 }
8383
8384 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8385 nl80211_mlme_mcgrp.id, gfp);
8386}
8387
ec15e68b
JM		 8388void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8389 struct net_device *dev, const u8 *mac_addr,
8390 gfp_t gfp)
8391{
8392 struct sk_buff *msg;
8393 void *hdr;
8394
58050fce 8395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8396 if (!msg)
8397 return;
8398
8399 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8400 if (!hdr) {
8401 nlmsg_free(msg);
8402 return;
8403 }
8404
9360ffd1
DM		 8405 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8406 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8407 goto nla_put_failure;
ec15e68b 8408
3b7b72ee 8409 genlmsg_end(msg, hdr);
ec15e68b
JM		 8410
8411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8412 nl80211_mlme_mcgrp.id, gfp);
8413 return;
8414
8415 nla_put_failure:
8416 genlmsg_cancel(msg, hdr);
8417 nlmsg_free(msg);
8418}
8419
ed44a951
PP		 8420void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8421 struct net_device *dev, const u8 *mac_addr,
8422 enum nl80211_connect_failed_reason reason,
8423 gfp_t gfp)
8424{
8425 struct sk_buff *msg;
8426 void *hdr;
8427
8428 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8429 if (!msg)
8430 return;
8431
8432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8433 if (!hdr) {
8434 nlmsg_free(msg);
8435 return;
8436 }
8437
8438 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8439 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8440 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8441 goto nla_put_failure;
8442
8443 genlmsg_end(msg, hdr);
8444
8445 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8446 nl80211_mlme_mcgrp.id, gfp);
8447 return;
8448
8449 nla_put_failure:
8450 genlmsg_cancel(msg, hdr);
8451 nlmsg_free(msg);
8452}
8453
b92ab5d8
JB		 8454static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8455 const u8 *addr, gfp_t gfp)
28946da7
JB		 8456{
8457 struct wireless_dev *wdev = dev->ieee80211_ptr;
8458 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8459 struct sk_buff *msg;
8460 void *hdr;
8461 int err;
15e47304 8462 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8463
15e47304 8464 if (!nlportid)
28946da7
JB		 8465 return false;
8466
8467 msg = nlmsg_new(100, gfp);
8468 if (!msg)
8469 return true;
8470
b92ab5d8 8471 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8472 if (!hdr) {
8473 nlmsg_free(msg);
8474 return true;
8475 }
8476
9360ffd1
DM		 8477 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8478 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8479 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8480 goto nla_put_failure;
28946da7
JB		 8481
8482 err = genlmsg_end(msg, hdr);
8483 if (err < 0) {
8484 nlmsg_free(msg);
8485 return true;
8486 }
8487
15e47304 8488 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8489 return true;
8490
8491 nla_put_failure:
8492 genlmsg_cancel(msg, hdr);
8493 nlmsg_free(msg);
8494 return true;
8495}
8496
b92ab5d8
JB		 8497bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8498{
8499 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8500 addr, gfp);
8501}
8502
8503bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8504 const u8 *addr, gfp_t gfp)
8505{
8506 return __nl80211_unexpected_frame(dev,
8507 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8508 addr, gfp);
8509}
8510
2e161f78 8511int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8512 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8513 int freq, int sig_dbm,
8514 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8515{
71bbc994 8516 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8517 struct sk_buff *msg;
8518 void *hdr;
026331c4
JM		 8519
8520 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8521 if (!msg)
8522 return -ENOMEM;
8523
2e161f78 8524 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8525 if (!hdr) {
8526 nlmsg_free(msg);
8527 return -ENOMEM;
8528 }
8529
9360ffd1 8530 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8531 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8532 netdev->ifindex)) ||
9360ffd1
DM		 8533 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8534 (sig_dbm &&
8535 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8536 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8537 goto nla_put_failure;
026331c4 8538
3b7b72ee 8539 genlmsg_end(msg, hdr);
026331c4 8540
15e47304 8541 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8542
8543 nla_put_failure:
8544 genlmsg_cancel(msg, hdr);
8545 nlmsg_free(msg);
8546 return -ENOBUFS;
8547}
8548
2e161f78 8549void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8550 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8551 const u8 *buf, size_t len, bool ack,
8552 gfp_t gfp)
026331c4 8553{
71bbc994 8554 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8555 struct sk_buff *msg;
8556 void *hdr;
8557
8558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8559 if (!msg)
8560 return;
8561
2e161f78 8562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8563 if (!hdr) {
8564 nlmsg_free(msg);
8565 return;
8566 }
8567
9360ffd1 8568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8569 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8570 netdev->ifindex)) ||
9360ffd1
DM		 8571 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8572 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8573 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8574 goto nla_put_failure;
026331c4 8575
3b7b72ee 8576 genlmsg_end(msg, hdr);
026331c4
JM		 8577
8578 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8579 return;
8580
8581 nla_put_failure:
8582 genlmsg_cancel(msg, hdr);
8583 nlmsg_free(msg);
8584}
8585
d6dc1a38
JO		 8586void
8587nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8588 struct net_device *netdev,
8589 enum nl80211_cqm_rssi_threshold_event rssi_event,
8590 gfp_t gfp)
8591{
8592 struct sk_buff *msg;
8593 struct nlattr *pinfoattr;
8594 void *hdr;
8595
58050fce 8596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8597 if (!msg)
8598 return;
8599
8600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8601 if (!hdr) {
8602 nlmsg_free(msg);
8603 return;
8604 }
8605
9360ffd1
DM		 8606 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8607 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8608 goto nla_put_failure;
d6dc1a38
JO		 8609
8610 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8611 if (!pinfoattr)
8612 goto nla_put_failure;
8613
9360ffd1
DM		 8614 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8615 rssi_event))
8616 goto nla_put_failure;
d6dc1a38
JO		 8617
8618 nla_nest_end(msg, pinfoattr);
8619
3b7b72ee 8620 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8621
8622 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8623 nl80211_mlme_mcgrp.id, gfp);
8624 return;
8625
8626 nla_put_failure:
8627 genlmsg_cancel(msg, hdr);
8628 nlmsg_free(msg);
8629}
8630
e5497d76
JB		 8631void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8632 struct net_device *netdev, const u8 *bssid,
8633 const u8 *replay_ctr, gfp_t gfp)
8634{
8635 struct sk_buff *msg;
8636 struct nlattr *rekey_attr;
8637 void *hdr;
8638
58050fce 8639 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8640 if (!msg)
8641 return;
8642
8643 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8644 if (!hdr) {
8645 nlmsg_free(msg);
8646 return;
8647 }
8648
9360ffd1
DM		 8649 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8650 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8651 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8652 goto nla_put_failure;
e5497d76
JB		 8653
8654 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8655 if (!rekey_attr)
8656 goto nla_put_failure;
8657
9360ffd1
DM		 8658 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8659 NL80211_REPLAY_CTR_LEN, replay_ctr))
8660 goto nla_put_failure;
e5497d76
JB		 8661
8662 nla_nest_end(msg, rekey_attr);
8663
3b7b72ee 8664 genlmsg_end(msg, hdr);
e5497d76
JB		 8665
8666 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8667 nl80211_mlme_mcgrp.id, gfp);
8668 return;
8669
8670 nla_put_failure:
8671 genlmsg_cancel(msg, hdr);
8672 nlmsg_free(msg);
8673}
8674
c9df56b4
JM		 8675void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8676 struct net_device *netdev, int index,
8677 const u8 *bssid, bool preauth, gfp_t gfp)
8678{
8679 struct sk_buff *msg;
8680 struct nlattr *attr;
8681 void *hdr;
8682
58050fce 8683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8684 if (!msg)
8685 return;
8686
8687 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8688 if (!hdr) {
8689 nlmsg_free(msg);
8690 return;
8691 }
8692
9360ffd1
DM		 8693 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8694 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8695 goto nla_put_failure;
c9df56b4
JM		 8696
8697 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8698 if (!attr)
8699 goto nla_put_failure;
8700
9360ffd1
DM		 8701 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8702 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8703 (preauth &&
8704 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8705 goto nla_put_failure;
c9df56b4
JM		 8706
8707 nla_nest_end(msg, attr);
8708
3b7b72ee 8709 genlmsg_end(msg, hdr);
c9df56b4
JM		 8710
8711 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8712 nl80211_mlme_mcgrp.id, gfp);
8713 return;
8714
8715 nla_put_failure:
8716 genlmsg_cancel(msg, hdr);
8717 nlmsg_free(msg);
8718}
8719
5314526b
TP		 8720void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8721 struct net_device *netdev, int freq,
8722 enum nl80211_channel_type type, gfp_t gfp)
8723{
8724 struct sk_buff *msg;
8725 void *hdr;
8726
58050fce 8727 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8728 if (!msg)
8729 return;
8730
8731 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8732 if (!hdr) {
8733 nlmsg_free(msg);
8734 return;
8735 }
8736
7eab0f64
JL		 8737 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8738 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8739 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8740 goto nla_put_failure;
5314526b
TP		 8741
8742 genlmsg_end(msg, hdr);
8743
8744 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8745 nl80211_mlme_mcgrp.id, gfp);
8746 return;
8747
8748 nla_put_failure:
8749 genlmsg_cancel(msg, hdr);
8750 nlmsg_free(msg);
8751}
8752
84f10708
TP		 8753void
8754nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8755 struct net_device *netdev, const u8 *peer,
8756 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8757{
8758 struct sk_buff *msg;
8759 struct nlattr *pinfoattr;
8760 void *hdr;
8761
8762 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8763 if (!msg)
8764 return;
8765
8766 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8767 if (!hdr) {
8768 nlmsg_free(msg);
8769 return;
8770 }
8771
8772 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8773 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8774 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8775 goto nla_put_failure;
8776
8777 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8778 if (!pinfoattr)
8779 goto nla_put_failure;
8780
8781 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8782 goto nla_put_failure;
8783
8784 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8785 goto nla_put_failure;
8786
8787 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8788 goto nla_put_failure;
8789
8790 nla_nest_end(msg, pinfoattr);
8791
8792 genlmsg_end(msg, hdr);
8793
8794 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8795 nl80211_mlme_mcgrp.id, gfp);
8796 return;
8797
8798 nla_put_failure:
8799 genlmsg_cancel(msg, hdr);
8800 nlmsg_free(msg);
8801}
8802
c063dbf5
JB		 8803void
8804nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8805 struct net_device *netdev, const u8 *peer,
8806 u32 num_packets, gfp_t gfp)
8807{
8808 struct sk_buff *msg;
8809 struct nlattr *pinfoattr;
8810 void *hdr;
8811
58050fce 8812 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 8813 if (!msg)
8814 return;
8815
8816 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8817 if (!hdr) {
8818 nlmsg_free(msg);
8819 return;
8820 }
8821
9360ffd1
DM		 8822 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8823 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8824 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8825 goto nla_put_failure;
c063dbf5
JB		 8826
8827 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8828 if (!pinfoattr)
8829 goto nla_put_failure;
8830
9360ffd1
DM		 8831 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8832 goto nla_put_failure;
c063dbf5
JB		 8833
8834 nla_nest_end(msg, pinfoattr);
8835
3b7b72ee 8836 genlmsg_end(msg, hdr);
c063dbf5
JB		 8837
8838 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8839 nl80211_mlme_mcgrp.id, gfp);
8840 return;
8841
8842 nla_put_failure:
8843 genlmsg_cancel(msg, hdr);
8844 nlmsg_free(msg);
8845}
8846
7f6cf311
JB		 8847void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8848 u64 cookie, bool acked, gfp_t gfp)
8849{
8850 struct wireless_dev *wdev = dev->ieee80211_ptr;
8851 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8852 struct sk_buff *msg;
8853 void *hdr;
8854 int err;
8855
58050fce 8856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7f6cf311
JB		 8857 if (!msg)
8858 return;
8859
8860 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8861 if (!hdr) {
8862 nlmsg_free(msg);
8863 return;
8864 }
8865
9360ffd1
DM		 8866 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8867 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8868 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8869 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8870 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8871 goto nla_put_failure;
7f6cf311
JB		 8872
8873 err = genlmsg_end(msg, hdr);
8874 if (err < 0) {
8875 nlmsg_free(msg);
8876 return;
8877 }
8878
8879 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8880 nl80211_mlme_mcgrp.id, gfp);
8881 return;
8882
8883 nla_put_failure:
8884 genlmsg_cancel(msg, hdr);
8885 nlmsg_free(msg);
8886}
8887EXPORT_SYMBOL(cfg80211_probe_status);
8888
5e760230
JB		 8889void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8890 const u8 *frame, size_t len,
804483e9 8891 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8892{
8893 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8894 struct sk_buff *msg;
8895 void *hdr;
15e47304 8896 u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid);
5e760230 8897
15e47304 8898 if (!nlportid)
5e760230
JB		 8899 return;
8900
8901 msg = nlmsg_new(len + 100, gfp);
8902 if (!msg)
8903 return;
8904
8905 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8906 if (!hdr) {
8907 nlmsg_free(msg);
8908 return;
8909 }
8910
9360ffd1
DM		 8911 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8912 (freq &&
8913 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8914 (sig_dbm &&
8915 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8916 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8917 goto nla_put_failure;
5e760230
JB		 8918
8919 genlmsg_end(msg, hdr);
8920
15e47304 8921 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
5e760230
JB		 8922 return;
8923
8924 nla_put_failure:
8925 genlmsg_cancel(msg, hdr);
8926 nlmsg_free(msg);
8927}
8928EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8929
026331c4
JM		 8930static int nl80211_netlink_notify(struct notifier_block * nb,
8931 unsigned long state,
8932 void *_notify)
8933{
8934 struct netlink_notify *notify = _notify;
8935 struct cfg80211_registered_device *rdev;
8936 struct wireless_dev *wdev;
8937
8938 if (state != NETLINK_URELEASE)
8939 return NOTIFY_DONE;
8940
8941 rcu_read_lock();
8942
5e760230 8943 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 8944 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304
EB		 8945 cfg80211_mlme_unregister_socket(wdev, notify->portid);
8946 if (rdev->ap_beacons_nlportid == notify->portid)
8947 rdev->ap_beacons_nlportid = 0;
5e760230 8948 }
026331c4
JM		 8949
8950 rcu_read_unlock();
8951
8952 return NOTIFY_DONE;
8953}
8954
8955static struct notifier_block nl80211_netlink_notifier = {
8956 .notifier_call = nl80211_netlink_notify,
8957};
8958
55682965
JB		 8959/* initialisation/exit functions */
8960
8961int nl80211_init(void)
8962{
0d63cbb5 8963 int err;
55682965 8964
0d63cbb5
MM		 8965 err = genl_register_family_with_ops(&nl80211_fam,
8966 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8967 if (err)
8968 return err;
8969
55682965
JB		 8970 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8971 if (err)
8972 goto err_out;
8973
2a519311
JB		 8974 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8975 if (err)
8976 goto err_out;
8977
73d54c9e
LR		 8978 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8979 if (err)
8980 goto err_out;
8981
6039f6d2
JM		 8982 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8983 if (err)
8984 goto err_out;
8985
aff89a9b
JB		 8986#ifdef CONFIG_NL80211_TESTMODE
8987 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8988 if (err)
8989 goto err_out;
8990#endif
8991
026331c4
JM		 8992 err = netlink_register_notifier(&nl80211_netlink_notifier);
8993 if (err)
8994 goto err_out;
8995
55682965
JB		 8996 return 0;
8997 err_out:
8998 genl_unregister_family(&nl80211_fam);
8999 return err;
9000}
9001
9002void nl80211_exit(void)
9003{
026331c4 9004 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9005 genl_unregister_family(&nl80211_fam);
9006}
Linux kernel - Deliverables
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