projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
nl80211: refactor __cfg80211_rdev_from_info
[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 bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
00918d33
JB		 50static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
55682965
JB		 53{
54 int ifindex;
55
bba95fef 56 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 57 return -EINVAL;
58
bba95fef 59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
00918d33 60 *dev = dev_get_by_index(netns, ifindex);
55682965
JB		 61 if (!*dev)
62 return -ENODEV;
63
00918d33 64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
79c97e97 65 if (IS_ERR(*rdev)) {
55682965 66 dev_put(*dev);
79c97e97 67 return PTR_ERR(*rdev);
55682965
JB		 68 }
69
70 return 0;
71}
72
a9455408
JB		 73static struct cfg80211_registered_device *
74__cfg80211_rdev_from_info(struct genl_info *info)
75{
7fee4778
JB		 76 struct cfg80211_registered_device *rdev = NULL, *tmp;
77 struct net_device *netdev;
a9455408
JB		 78
79 assert_cfg80211_lock();
80
7fee4778
JB		 81 if (!info->attrs[NL80211_ATTR_WIPHY] &&
82 !info->attrs[NL80211_ATTR_IFINDEX])
83 return ERR_PTR(-EINVAL);
84
85 if (info->attrs[NL80211_ATTR_WIPHY])
86 rdev = cfg80211_rdev_by_wiphy_idx(
a9455408 87 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
a9455408
JB		 88
89 if (info->attrs[NL80211_ATTR_IFINDEX]) {
7fee4778
JB		 90 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
91 netdev = dev_get_by_index(genl_info_net(info), ifindex);
92 if (netdev) {
93 if (netdev->ieee80211_ptr)
94 tmp = wiphy_to_dev(
95 netdev->ieee80211_ptr->wiphy);
96 else
97 tmp = NULL;
98
99 dev_put(netdev);
100
101 /* not wireless device -- return error */
102 if (!tmp)
103 return ERR_PTR(-EINVAL);
104
105 /* mismatch -- return error */
106 if (rdev && tmp != rdev)
107 return ERR_PTR(-EINVAL);
108
109 rdev = tmp;
a9455408 110 }
a9455408 111 }
a9455408 112
7fee4778
JB		 113 if (rdev)
114 return rdev;
a9455408 115
7fee4778 116 return ERR_PTR(-ENODEV);
a9455408
JB		 117}
118
119/*
120 * This function returns a pointer to the driver
121 * that the genl_info item that is passed refers to.
122 * If successful, it returns non-NULL and also locks
123 * the driver's mutex!
124 *
125 * This means that you need to call cfg80211_unlock_rdev()
126 * before being allowed to acquire &cfg80211_mutex!
127 *
128 * This is necessary because we need to lock the global
129 * mutex to get an item off the list safely, and then
130 * we lock the rdev mutex so it doesn't go away under us.
131 *
132 * We don't want to keep cfg80211_mutex locked
133 * for all the time in order to allow requests on
134 * other interfaces to go through at the same time.
135 *
136 * The result of this can be a PTR_ERR and hence must
137 * be checked with IS_ERR() for errors.
138 */
139static struct cfg80211_registered_device *
140cfg80211_get_dev_from_info(struct genl_info *info)
141{
142 struct cfg80211_registered_device *rdev;
143
144 mutex_lock(&cfg80211_mutex);
145 rdev = __cfg80211_rdev_from_info(info);
146
147 /* if it is not an error we grab the lock on
148 * it to assure it won't be going away while
149 * we operate on it */
150 if (!IS_ERR(rdev))
151 mutex_lock(&rdev->mtx);
152
153 mutex_unlock(&cfg80211_mutex);
154
155 return rdev;
156}
157
55682965 158/* policy for the attributes */
b54452b0 159static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 160 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
161 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 162 .len = 20-1 },
31888487 163 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 164 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 165 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 166 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
167 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
168 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
169 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 170 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 171
172 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
173 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
174 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 175
e007b857
EP		 176 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
177 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 178
b9454e83 179 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 180 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
181 .len = WLAN_MAX_KEY_LEN },
182 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
183 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
184 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 185 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 186 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 187
188 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
189 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
190 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
191 .len = IEEE80211_MAX_DATA_LEN },
192 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
193 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 194 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
195 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
196 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
197 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
198 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 199 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 200 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 201 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 202 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 203 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 204 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 205
b2e1b302
LR		 206 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
207 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
208
9f1ba906
JM		 209 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
210 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
211 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 212 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
213 .len = NL80211_MAX_SUPP_RATES },
50b12f59 214 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 215
24bdd9f4 216 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 217 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 218
6c739419 219 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 220
221 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
222 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
223 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 224 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
225 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 226
227 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
228 .len = IEEE80211_MAX_SSID_LEN },
229 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 231 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 232 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 233 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 234 [NL80211_ATTR_STA_FLAGS2] = {
235 .len = sizeof(struct nl80211_sta_flag_update),
236 },
3f77316c 237 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 238 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
239 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 240 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
241 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
242 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 243 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 244 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 245 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
246 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 247 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
248 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 249 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 250 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 253 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 254 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 255 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 256 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 257 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
258 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 259 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 260 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
261 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 262 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 263 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 264 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 265 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 266 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 267 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 268 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 269 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 270 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 271 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
272 .len = IEEE80211_MAX_DATA_LEN },
273 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
274 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 275 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 276 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 277 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 278 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
279 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
280 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
281 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
282 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 283 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 284 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 286 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 287 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
288 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
289 .len = NL80211_HT_CAPABILITY_LEN
290 },
1d9d9213 291 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 292 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 293 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
55682965
JB		 294};
295
e31b8213 296/* policy for the key attributes */
b54452b0 297static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 298 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 299 [NL80211_KEY_IDX] = { .type = NLA_U8 },
300 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 301 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 302 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
303 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 304 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 305 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
306};
307
308/* policy for the key default flags */
309static const struct nla_policy
310nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
311 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
312 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 313};
314
ff1b6e69
JB		 315/* policy for WoWLAN attributes */
316static const struct nla_policy
317nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
318 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
319 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
320 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
321 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 322 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
323 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
324 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
325 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 326};
327
e5497d76
JB		 328/* policy for GTK rekey offload attributes */
329static const struct nla_policy
330nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
331 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
332 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
333 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
334};
335
a1f1c21c
LC		 336static const struct nla_policy
337nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 338 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c
LC		 339 .len = IEEE80211_MAX_SSID_LEN },
340};
341
a043897a
HS		 342/* ifidx get helper */
343static int nl80211_get_ifidx(struct netlink_callback *cb)
344{
345 int res;
346
347 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
348 nl80211_fam.attrbuf, nl80211_fam.maxattr,
349 nl80211_policy);
350 if (res)
351 return res;
352
353 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
354 return -EINVAL;
355
356 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
357 if (!res)
358 return -EINVAL;
359 return res;
360}
361
67748893
JB		 362static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
363 struct netlink_callback *cb,
364 struct cfg80211_registered_device **rdev,
365 struct net_device **dev)
366{
367 int ifidx = cb->args[0];
368 int err;
369
370 if (!ifidx)
371 ifidx = nl80211_get_ifidx(cb);
372 if (ifidx < 0)
373 return ifidx;
374
375 cb->args[0] = ifidx;
376
377 rtnl_lock();
378
379 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
380 if (!*dev) {
381 err = -ENODEV;
382 goto out_rtnl;
383 }
384
385 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 386 if (IS_ERR(*rdev)) {
387 err = PTR_ERR(*rdev);
67748893
JB		 388 goto out_rtnl;
389 }
390
391 return 0;
392 out_rtnl:
393 rtnl_unlock();
394 return err;
395}
396
397static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
398{
399 cfg80211_unlock_rdev(rdev);
400 rtnl_unlock();
401}
402
f4a11bb0
JB		 403/* IE validation */
404static bool is_valid_ie_attr(const struct nlattr *attr)
405{
406 const u8 *pos;
407 int len;
408
409 if (!attr)
410 return true;
411
412 pos = nla_data(attr);
413 len = nla_len(attr);
414
415 while (len) {
416 u8 elemlen;
417
418 if (len < 2)
419 return false;
420 len -= 2;
421
422 elemlen = pos[1];
423 if (elemlen > len)
424 return false;
425
426 len -= elemlen;
427 pos += 2 + elemlen;
428 }
429
430 return true;
431}
432
55682965
JB		 433/* message building helper */
434static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
435 int flags, u8 cmd)
436{
437 /* since there is no private header just add the generic one */
438 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
439}
440
5dab3b8a
LR		 441static int nl80211_msg_put_channel(struct sk_buff *msg,
442 struct ieee80211_channel *chan)
443{
9360ffd1
DM		 444 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
445 chan->center_freq))
446 goto nla_put_failure;
5dab3b8a 447
9360ffd1
DM		 448 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
449 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
450 goto nla_put_failure;
451 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
452 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
453 goto nla_put_failure;
454 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
455 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
456 goto nla_put_failure;
457 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
458 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
459 goto nla_put_failure;
5dab3b8a 460
9360ffd1
DM		 461 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
462 DBM_TO_MBM(chan->max_power)))
463 goto nla_put_failure;
5dab3b8a
LR		 464
465 return 0;
466
467 nla_put_failure:
468 return -ENOBUFS;
469}
470
55682965
JB		 471/* netlink command implementations */
472
b9454e83
JB		 473struct key_parse {
474 struct key_params p;
475 int idx;
e31b8213 476 int type;
b9454e83 477 bool def, defmgmt;
dbd2fd65 478 bool def_uni, def_multi;
b9454e83
JB		 479};
480
481static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
482{
483 struct nlattr *tb[NL80211_KEY_MAX + 1];
484 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
485 nl80211_key_policy);
486 if (err)
487 return err;
488
489 k->def = !!tb[NL80211_KEY_DEFAULT];
490 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
491
dbd2fd65
JB		 492 if (k->def) {
493 k->def_uni = true;
494 k->def_multi = true;
495 }
496 if (k->defmgmt)
497 k->def_multi = true;
498
b9454e83
JB		 499 if (tb[NL80211_KEY_IDX])
500 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
501
502 if (tb[NL80211_KEY_DATA]) {
503 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
504 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
505 }
506
507 if (tb[NL80211_KEY_SEQ]) {
508 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
509 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
510 }
511
512 if (tb[NL80211_KEY_CIPHER])
513 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
514
e31b8213
JB		 515 if (tb[NL80211_KEY_TYPE]) {
516 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
517 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
518 return -EINVAL;
519 }
520
dbd2fd65
JB		 521 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
522 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 523 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
524 tb[NL80211_KEY_DEFAULT_TYPES],
525 nl80211_key_default_policy);
dbd2fd65
JB		 526 if (err)
527 return err;
528
529 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
530 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
531 }
532
b9454e83
JB		 533 return 0;
534}
535
536static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
537{
538 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
539 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
540 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
541 }
542
543 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
544 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
545 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
546 }
547
548 if (info->attrs[NL80211_ATTR_KEY_IDX])
549 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
550
551 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
552 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
553
554 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
555 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
556
dbd2fd65
JB		 557 if (k->def) {
558 k->def_uni = true;
559 k->def_multi = true;
560 }
561 if (k->defmgmt)
562 k->def_multi = true;
563
e31b8213
JB		 564 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
565 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
566 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
567 return -EINVAL;
568 }
569
dbd2fd65
JB		 570 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
571 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
572 int err = nla_parse_nested(
573 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
574 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
575 nl80211_key_default_policy);
576 if (err)
577 return err;
578
579 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
580 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
581 }
582
b9454e83
JB		 583 return 0;
584}
585
586static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
587{
588 int err;
589
590 memset(k, 0, sizeof(*k));
591 k->idx = -1;
e31b8213 592 k->type = -1;
b9454e83
JB		 593
594 if (info->attrs[NL80211_ATTR_KEY])
595 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
596 else
597 err = nl80211_parse_key_old(info, k);
598
599 if (err)
600 return err;
601
602 if (k->def && k->defmgmt)
603 return -EINVAL;
604
dbd2fd65
JB		 605 if (k->defmgmt) {
606 if (k->def_uni || !k->def_multi)
607 return -EINVAL;
608 }
609
b9454e83
JB		 610 if (k->idx != -1) {
611 if (k->defmgmt) {
612 if (k->idx < 4 || k->idx > 5)
613 return -EINVAL;
614 } else if (k->def) {
615 if (k->idx < 0 || k->idx > 3)
616 return -EINVAL;
617 } else {
618 if (k->idx < 0 || k->idx > 5)
619 return -EINVAL;
620 }
621 }
622
623 return 0;
624}
625
fffd0934
JB		 626static struct cfg80211_cached_keys *
627nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
628 struct nlattr *keys)
629{
630 struct key_parse parse;
631 struct nlattr *key;
632 struct cfg80211_cached_keys *result;
633 int rem, err, def = 0;
634
635 result = kzalloc(sizeof(*result), GFP_KERNEL);
636 if (!result)
637 return ERR_PTR(-ENOMEM);
638
639 result->def = -1;
640 result->defmgmt = -1;
641
642 nla_for_each_nested(key, keys, rem) {
643 memset(&parse, 0, sizeof(parse));
644 parse.idx = -1;
645
646 err = nl80211_parse_key_new(key, &parse);
647 if (err)
648 goto error;
649 err = -EINVAL;
650 if (!parse.p.key)
651 goto error;
652 if (parse.idx < 0 || parse.idx > 4)
653 goto error;
654 if (parse.def) {
655 if (def)
656 goto error;
657 def = 1;
658 result->def = parse.idx;
dbd2fd65
JB		 659 if (!parse.def_uni || !parse.def_multi)
660 goto error;
fffd0934
JB		 661 } else if (parse.defmgmt)
662 goto error;
663 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 664 parse.idx, false, NULL);
fffd0934
JB		 665 if (err)
666 goto error;
667 result->params[parse.idx].cipher = parse.p.cipher;
668 result->params[parse.idx].key_len = parse.p.key_len;
669 result->params[parse.idx].key = result->data[parse.idx];
670 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
671 }
672
673 return result;
674 error:
675 kfree(result);
676 return ERR_PTR(err);
677}
678
679static int nl80211_key_allowed(struct wireless_dev *wdev)
680{
681 ASSERT_WDEV_LOCK(wdev);
682
fffd0934
JB		 683 switch (wdev->iftype) {
684 case NL80211_IFTYPE_AP:
685 case NL80211_IFTYPE_AP_VLAN:
074ac8df 686 case NL80211_IFTYPE_P2P_GO:
ff973af7 687 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 688 break;
689 case NL80211_IFTYPE_ADHOC:
690 if (!wdev->current_bss)
691 return -ENOLINK;
692 break;
693 case NL80211_IFTYPE_STATION:
074ac8df 694 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 695 if (wdev->sme_state != CFG80211_SME_CONNECTED)
696 return -ENOLINK;
697 break;
698 default:
699 return -EINVAL;
700 }
701
702 return 0;
703}
704
7527a782
JB		 705static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
706{
707 struct nlattr *nl_modes = nla_nest_start(msg, attr);
708 int i;
709
710 if (!nl_modes)
711 goto nla_put_failure;
712
713 i = 0;
714 while (ifmodes) {
9360ffd1
DM		 715 if ((ifmodes & 1) && nla_put_flag(msg, i))
716 goto nla_put_failure;
7527a782
JB		 717 ifmodes >>= 1;
718 i++;
719 }
720
721 nla_nest_end(msg, nl_modes);
722 return 0;
723
724nla_put_failure:
725 return -ENOBUFS;
726}
727
728static int nl80211_put_iface_combinations(struct wiphy *wiphy,
729 struct sk_buff *msg)
730{
731 struct nlattr *nl_combis;
732 int i, j;
733
734 nl_combis = nla_nest_start(msg,
735 NL80211_ATTR_INTERFACE_COMBINATIONS);
736 if (!nl_combis)
737 goto nla_put_failure;
738
739 for (i = 0; i < wiphy->n_iface_combinations; i++) {
740 const struct ieee80211_iface_combination *c;
741 struct nlattr *nl_combi, *nl_limits;
742
743 c = &wiphy->iface_combinations[i];
744
745 nl_combi = nla_nest_start(msg, i + 1);
746 if (!nl_combi)
747 goto nla_put_failure;
748
749 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
750 if (!nl_limits)
751 goto nla_put_failure;
752
753 for (j = 0; j < c->n_limits; j++) {
754 struct nlattr *nl_limit;
755
756 nl_limit = nla_nest_start(msg, j + 1);
757 if (!nl_limit)
758 goto nla_put_failure;
9360ffd1
DM		 759 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
760 c->limits[j].max))
761 goto nla_put_failure;
7527a782
JB		 762 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
763 c->limits[j].types))
764 goto nla_put_failure;
765 nla_nest_end(msg, nl_limit);
766 }
767
768 nla_nest_end(msg, nl_limits);
769
9360ffd1
DM		 770 if (c->beacon_int_infra_match &&
771 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
772 goto nla_put_failure;
773 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
774 c->num_different_channels) ||
775 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
776 c->max_interfaces))
777 goto nla_put_failure;
7527a782
JB		 778
779 nla_nest_end(msg, nl_combi);
780 }
781
782 nla_nest_end(msg, nl_combis);
783
784 return 0;
785nla_put_failure:
786 return -ENOBUFS;
787}
788
55682965
JB		 789static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
790 struct cfg80211_registered_device *dev)
791{
792 void *hdr;
ee688b00
JB		 793 struct nlattr *nl_bands, *nl_band;
794 struct nlattr *nl_freqs, *nl_freq;
795 struct nlattr *nl_rates, *nl_rate;
8fdc621d 796 struct nlattr *nl_cmds;
ee688b00
JB		 797 enum ieee80211_band band;
798 struct ieee80211_channel *chan;
799 struct ieee80211_rate *rate;
800 int i;
2e161f78
JB		 801 const struct ieee80211_txrx_stypes *mgmt_stypes =
802 dev->wiphy.mgmt_stypes;
55682965
JB		 803
804 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
805 if (!hdr)
806 return -1;
807
9360ffd1
DM		 808 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
809 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
810 nla_put_u32(msg, NL80211_ATTR_GENERATION,
811 cfg80211_rdev_list_generation) ||
812 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
813 dev->wiphy.retry_short) ||
814 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
815 dev->wiphy.retry_long) ||
816 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
817 dev->wiphy.frag_threshold) ||
818 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
819 dev->wiphy.rts_threshold) ||
820 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
821 dev->wiphy.coverage_class) ||
822 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
823 dev->wiphy.max_scan_ssids) ||
824 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
825 dev->wiphy.max_sched_scan_ssids) ||
826 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
827 dev->wiphy.max_scan_ie_len) ||
828 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
829 dev->wiphy.max_sched_scan_ie_len) ||
830 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
831 dev->wiphy.max_match_sets))
832 goto nla_put_failure;
833
834 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
835 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
836 goto nla_put_failure;
837 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
838 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
839 goto nla_put_failure;
840 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
841 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
842 goto nla_put_failure;
843 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
844 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
845 goto nla_put_failure;
846 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
847 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
848 goto nla_put_failure;
849 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
850 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
851 goto nla_put_failure;
852
853 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
854 sizeof(u32) * dev->wiphy.n_cipher_suites,
855 dev->wiphy.cipher_suites))
856 goto nla_put_failure;
857
858 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
859 dev->wiphy.max_num_pmkids))
860 goto nla_put_failure;
861
862 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
863 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
864 goto nla_put_failure;
865
866 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
867 dev->wiphy.available_antennas_tx) ||
868 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
869 dev->wiphy.available_antennas_rx))
870 goto nla_put_failure;
871
872 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
873 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
874 dev->wiphy.probe_resp_offload))
875 goto nla_put_failure;
87bbbe22 876
7f531e03
BR		 877 if ((dev->wiphy.available_antennas_tx ||
878 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 879 u32 tx_ant = 0, rx_ant = 0;
880 int res;
881 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
882 if (!res) {
9360ffd1
DM		 883 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
884 tx_ant) ||
885 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
886 rx_ant))
887 goto nla_put_failure;
afe0cbf8
BR		 888 }
889 }
890
7527a782
JB		 891 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
892 dev->wiphy.interface_modes))
f59ac048
LR		 893 goto nla_put_failure;
894
ee688b00
JB		 895 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
896 if (!nl_bands)
897 goto nla_put_failure;
898
899 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
900 if (!dev->wiphy.bands[band])
901 continue;
902
903 nl_band = nla_nest_start(msg, band);
904 if (!nl_band)
905 goto nla_put_failure;
906
d51626df 907 /* add HT info */
9360ffd1
DM		 908 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
909 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
910 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
911 &dev->wiphy.bands[band]->ht_cap.mcs) ||
912 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
913 dev->wiphy.bands[band]->ht_cap.cap) ||
914 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
915 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
916 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
917 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
918 goto nla_put_failure;
d51626df 919
ee688b00
JB		 920 /* add frequencies */
921 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
922 if (!nl_freqs)
923 goto nla_put_failure;
924
925 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
926 nl_freq = nla_nest_start(msg, i);
927 if (!nl_freq)
928 goto nla_put_failure;
929
930 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 931
932 if (nl80211_msg_put_channel(msg, chan))
933 goto nla_put_failure;
e2f367f2 934
ee688b00
JB		 935 nla_nest_end(msg, nl_freq);
936 }
937
938 nla_nest_end(msg, nl_freqs);
939
940 /* add bitrates */
941 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
942 if (!nl_rates)
943 goto nla_put_failure;
944
945 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
946 nl_rate = nla_nest_start(msg, i);
947 if (!nl_rate)
948 goto nla_put_failure;
949
950 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 951 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
952 rate->bitrate))
953 goto nla_put_failure;
954 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
955 nla_put_flag(msg,
956 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
957 goto nla_put_failure;
ee688b00
JB		 958
959 nla_nest_end(msg, nl_rate);
960 }
961
962 nla_nest_end(msg, nl_rates);
963
964 nla_nest_end(msg, nl_band);
965 }
966 nla_nest_end(msg, nl_bands);
967
8fdc621d
JB		 968 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
969 if (!nl_cmds)
970 goto nla_put_failure;
971
972 i = 0;
973#define CMD(op, n) \
974 do { \
975 if (dev->ops->op) { \
976 i++; \
9360ffd1
DM		 977 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
978 goto nla_put_failure; \
8fdc621d
JB		 979 } \
980 } while (0)
981
982 CMD(add_virtual_intf, NEW_INTERFACE);
983 CMD(change_virtual_intf, SET_INTERFACE);
984 CMD(add_key, NEW_KEY);
8860020e 985 CMD(start_ap, START_AP);
8fdc621d
JB		 986 CMD(add_station, NEW_STATION);
987 CMD(add_mpath, NEW_MPATH);
24bdd9f4 988 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 989 CMD(change_bss, SET_BSS);
636a5d36
JM		 990 CMD(auth, AUTHENTICATE);
991 CMD(assoc, ASSOCIATE);
992 CMD(deauth, DEAUTHENTICATE);
993 CMD(disassoc, DISASSOCIATE);
04a773ad 994 CMD(join_ibss, JOIN_IBSS);
29cbe68c 995 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 996 CMD(set_pmksa, SET_PMKSA);
997 CMD(del_pmksa, DEL_PMKSA);
998 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 999 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1000 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1001 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1002 CMD(mgmt_tx, FRAME);
f7ca38df 1003 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1004 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1005 i++;
9360ffd1
DM		 1006 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1007 goto nla_put_failure;
463d0183 1008 }
e8c9bd5b 1009 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1010 dev->ops->join_mesh) {
aa430da4
JB		 1011 i++;
1012 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1013 goto nla_put_failure;
1014 }
e8347eba 1015 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1016 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1017 CMD(tdls_mgmt, TDLS_MGMT);
1018 CMD(tdls_oper, TDLS_OPER);
1019 }
807f8a8c
LC		 1020 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1021 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1022 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1023 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1024 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1025 i++;
9360ffd1
DM		 1026 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1027 goto nla_put_failure;
5e760230 1028 }
8fdc621d 1029
4745fc09
KV		 1030#ifdef CONFIG_NL80211_TESTMODE
1031 CMD(testmode_cmd, TESTMODE);
1032#endif
1033
8fdc621d 1034#undef CMD
b23aa676 1035
6829c878 1036 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1037 i++;
9360ffd1
DM		 1038 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1039 goto nla_put_failure;
b23aa676
SO		 1040 }
1041
6829c878 1042 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1043 i++;
9360ffd1
DM		 1044 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1045 goto nla_put_failure;
b23aa676
SO		 1046 }
1047
8fdc621d
JB		 1048 nla_nest_end(msg, nl_cmds);
1049
7c4ef712 1050 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1051 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1052 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1053 dev->wiphy.max_remain_on_channel_duration))
1054 goto nla_put_failure;
a293911d 1055
9360ffd1
DM		 1056 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1057 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1058 goto nla_put_failure;
f7ca38df 1059
2e161f78
JB		 1060 if (mgmt_stypes) {
1061 u16 stypes;
1062 struct nlattr *nl_ftypes, *nl_ifs;
1063 enum nl80211_iftype ift;
1064
1065 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1066 if (!nl_ifs)
1067 goto nla_put_failure;
1068
1069 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1070 nl_ftypes = nla_nest_start(msg, ift);
1071 if (!nl_ftypes)
1072 goto nla_put_failure;
1073 i = 0;
1074 stypes = mgmt_stypes[ift].tx;
1075 while (stypes) {
9360ffd1
DM		 1076 if ((stypes & 1) &&
1077 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1078 (i << 4) | IEEE80211_FTYPE_MGMT))
1079 goto nla_put_failure;
2e161f78
JB		 1080 stypes >>= 1;
1081 i++;
1082 }
1083 nla_nest_end(msg, nl_ftypes);
1084 }
1085
74b70a4e
JB		 1086 nla_nest_end(msg, nl_ifs);
1087
2e161f78
JB		 1088 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1089 if (!nl_ifs)
1090 goto nla_put_failure;
1091
1092 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1093 nl_ftypes = nla_nest_start(msg, ift);
1094 if (!nl_ftypes)
1095 goto nla_put_failure;
1096 i = 0;
1097 stypes = mgmt_stypes[ift].rx;
1098 while (stypes) {
9360ffd1
DM		 1099 if ((stypes & 1) &&
1100 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1101 (i << 4) | IEEE80211_FTYPE_MGMT))
1102 goto nla_put_failure;
2e161f78
JB		 1103 stypes >>= 1;
1104 i++;
1105 }
1106 nla_nest_end(msg, nl_ftypes);
1107 }
1108 nla_nest_end(msg, nl_ifs);
1109 }
1110
ff1b6e69
JB		 1111 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1112 struct nlattr *nl_wowlan;
1113
1114 nl_wowlan = nla_nest_start(msg,
1115 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1116 if (!nl_wowlan)
1117 goto nla_put_failure;
1118
9360ffd1
DM		 1119 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1120 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1121 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1122 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1123 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1124 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1125 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1126 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1127 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1128 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1129 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1130 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1131 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1132 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1133 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1134 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1135 goto nla_put_failure;
ff1b6e69
JB		 1136 if (dev->wiphy.wowlan.n_patterns) {
1137 struct nl80211_wowlan_pattern_support pat = {
1138 .max_patterns = dev->wiphy.wowlan.n_patterns,
1139 .min_pattern_len =
1140 dev->wiphy.wowlan.pattern_min_len,
1141 .max_pattern_len =
1142 dev->wiphy.wowlan.pattern_max_len,
1143 };
9360ffd1
DM		 1144 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1145 sizeof(pat), &pat))
1146 goto nla_put_failure;
ff1b6e69
JB		 1147 }
1148
1149 nla_nest_end(msg, nl_wowlan);
1150 }
1151
7527a782
JB		 1152 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1153 dev->wiphy.software_iftypes))
1154 goto nla_put_failure;
1155
1156 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1157 goto nla_put_failure;
1158
9360ffd1
DM		 1159 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1160 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1161 dev->wiphy.ap_sme_capa))
1162 goto nla_put_failure;
562a7480 1163
9360ffd1
DM		 1164 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1165 dev->wiphy.features))
1166 goto nla_put_failure;
1f074bd8 1167
9360ffd1
DM		 1168 if (dev->wiphy.ht_capa_mod_mask &&
1169 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1170 sizeof(*dev->wiphy.ht_capa_mod_mask),
1171 dev->wiphy.ht_capa_mod_mask))
1172 goto nla_put_failure;
7e7c8926 1173
55682965
JB		 1174 return genlmsg_end(msg, hdr);
1175
1176 nla_put_failure:
bc3ed28c
TG		 1177 genlmsg_cancel(msg, hdr);
1178 return -EMSGSIZE;
55682965
JB		 1179}
1180
1181static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1182{
1183 int idx = 0;
1184 int start = cb->args[0];
1185 struct cfg80211_registered_device *dev;
1186
a1794390 1187 mutex_lock(&cfg80211_mutex);
79c97e97 1188 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1189 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1190 continue;
b4637271 1191 if (++idx <= start)
55682965
JB		 1192 continue;
1193 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1194 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1195 dev) < 0) {
1196 idx--;
55682965 1197 break;
b4637271 1198 }
55682965 1199 }
a1794390 1200 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1201
1202 cb->args[0] = idx;
1203
1204 return skb->len;
1205}
1206
1207static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1208{
1209 struct sk_buff *msg;
4c476991 1210 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1211
fd2120ca 1212 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1213 if (!msg)
4c476991 1214 return -ENOMEM;
55682965 1215
4c476991
JB		 1216 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1217 nlmsg_free(msg);
1218 return -ENOBUFS;
1219 }
55682965 1220
134e6375 1221 return genlmsg_reply(msg, info);
55682965
JB		 1222}
1223
31888487
JM		 1224static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1225 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1226 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1227 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1228 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1229 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1230};
1231
1232static int parse_txq_params(struct nlattr *tb[],
1233 struct ieee80211_txq_params *txq_params)
1234{
a3304b0a 1235 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1236 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1237 !tb[NL80211_TXQ_ATTR_AIFS])
1238 return -EINVAL;
1239
a3304b0a 1240 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1241 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1242 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1243 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1244 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1245
a3304b0a
JB		 1246 if (txq_params->ac >= NL80211_NUM_ACS)
1247 return -EINVAL;
1248
31888487
JM		 1249 return 0;
1250}
1251
f444de05
JB		 1252static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1253{
1254 /*
cc1d2806
JB		 1255 * You can only set the channel explicitly for WDS interfaces,
1256 * all others have their channel managed via their respective
1257 * "establish a connection" command (connect, join, ...)
1258 *
1259 * For AP/GO and mesh mode, the channel can be set with the
1260 * channel userspace API, but is only stored and passed to the
1261 * low-level driver when the AP starts or the mesh is joined.
1262 * This is for backward compatibility, userspace can also give
1263 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1264 *
1265 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1266 * whatever else is going on, so they have their own special
1267 * operation to set the monitor channel if possible.
f444de05
JB		 1268 */
1269 return !wdev ||
1270 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1271 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1272 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1273 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1274}
1275
cd6c6598
JB		 1276static bool nl80211_valid_channel_type(struct genl_info *info,
1277 enum nl80211_channel_type *channel_type)
1278{
1279 enum nl80211_channel_type tmp;
1280
1281 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1282 return false;
1283
1284 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1285 if (tmp != NL80211_CHAN_NO_HT &&
1286 tmp != NL80211_CHAN_HT20 &&
1287 tmp != NL80211_CHAN_HT40PLUS &&
1288 tmp != NL80211_CHAN_HT40MINUS)
1289 return false;
1290
1291 if (channel_type)
1292 *channel_type = tmp;
1293
1294 return true;
1295}
1296
f444de05
JB		 1297static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1298 struct wireless_dev *wdev,
1299 struct genl_info *info)
1300{
aa430da4 1301 struct ieee80211_channel *channel;
f444de05
JB		 1302 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1303 u32 freq;
1304 int result;
e8c9bd5b
JB		 1305 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1306
1307 if (wdev)
1308 iftype = wdev->iftype;
f444de05
JB		 1309
1310 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1311 return -EINVAL;
1312
1313 if (!nl80211_can_set_dev_channel(wdev))
1314 return -EOPNOTSUPP;
1315
cd6c6598
JB		 1316 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1317 !nl80211_valid_channel_type(info, &channel_type))
1318 return -EINVAL;
f444de05
JB		 1319
1320 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1321
1322 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1323 switch (iftype) {
aa430da4
JB		 1324 case NL80211_IFTYPE_AP:
1325 case NL80211_IFTYPE_P2P_GO:
1326 if (wdev->beacon_interval) {
1327 result = -EBUSY;
1328 break;
1329 }
1330 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1331 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1332 channel,
1333 channel_type)) {
1334 result = -EINVAL;
1335 break;
1336 }
1337 wdev->preset_chan = channel;
1338 wdev->preset_chantype = channel_type;
1339 result = 0;
1340 break;
cc1d2806
JB		 1341 case NL80211_IFTYPE_MESH_POINT:
1342 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1343 break;
e8c9bd5b
JB		 1344 case NL80211_IFTYPE_MONITOR:
1345 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1346 break;
aa430da4 1347 default:
e8c9bd5b 1348 result = -EINVAL;
f444de05
JB		 1349 }
1350 mutex_unlock(&rdev->devlist_mtx);
1351
1352 return result;
1353}
1354
1355static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1356{
4c476991
JB		 1357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1358 struct net_device *netdev = info->user_ptr[1];
f444de05 1359
4c476991 1360 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1361}
1362
e8347eba
BJ		 1363static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1364{
43b19952
JB		 1365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1366 struct net_device *dev = info->user_ptr[1];
1367 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1368 const u8 *bssid;
e8347eba
BJ		 1369
1370 if (!info->attrs[NL80211_ATTR_MAC])
1371 return -EINVAL;
1372
43b19952
JB		 1373 if (netif_running(dev))
1374 return -EBUSY;
e8347eba 1375
43b19952
JB		 1376 if (!rdev->ops->set_wds_peer)
1377 return -EOPNOTSUPP;
e8347eba 1378
43b19952
JB		 1379 if (wdev->iftype != NL80211_IFTYPE_WDS)
1380 return -EOPNOTSUPP;
e8347eba
BJ		 1381
1382 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1383 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1384}
1385
1386
55682965
JB		 1387static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1388{
1389 struct cfg80211_registered_device *rdev;
f444de05
JB		 1390 struct net_device *netdev = NULL;
1391 struct wireless_dev *wdev;
a1e567c8 1392 int result = 0, rem_txq_params = 0;
31888487 1393 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1394 u32 changed;
1395 u8 retry_short = 0, retry_long = 0;
1396 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1397 u8 coverage_class = 0;
55682965 1398
f444de05
JB		 1399 /*
1400 * Try to find the wiphy and netdev. Normally this
1401 * function shouldn't need the netdev, but this is
1402 * done for backward compatibility -- previously
1403 * setting the channel was done per wiphy, but now
1404 * it is per netdev. Previous userland like hostapd
1405 * also passed a netdev to set_wiphy, so that it is
1406 * possible to let that go to the right netdev!
1407 */
4bbf4d56
JB		 1408 mutex_lock(&cfg80211_mutex);
1409
f444de05
JB		 1410 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1411 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1412
1413 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1414 if (netdev && netdev->ieee80211_ptr) {
1415 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1416 mutex_lock(&rdev->mtx);
1417 } else
1418 netdev = NULL;
4bbf4d56
JB		 1419 }
1420
f444de05
JB		 1421 if (!netdev) {
1422 rdev = __cfg80211_rdev_from_info(info);
1423 if (IS_ERR(rdev)) {
1424 mutex_unlock(&cfg80211_mutex);
4c476991 1425 return PTR_ERR(rdev);
f444de05
JB		 1426 }
1427 wdev = NULL;
1428 netdev = NULL;
1429 result = 0;
1430
1431 mutex_lock(&rdev->mtx);
cc1d2806 1432 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
f444de05
JB		 1433 wdev = netdev->ieee80211_ptr;
1434 else
1435 wdev = NULL;
1436
1437 /*
1438 * end workaround code, by now the rdev is available
1439 * and locked, and wdev may or may not be NULL.
1440 */
4bbf4d56
JB		 1441
1442 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1443 result = cfg80211_dev_rename(
1444 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1445
1446 mutex_unlock(&cfg80211_mutex);
1447
1448 if (result)
1449 goto bad_res;
31888487
JM		 1450
1451 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1452 struct ieee80211_txq_params txq_params;
1453 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1454
1455 if (!rdev->ops->set_txq_params) {
1456 result = -EOPNOTSUPP;
1457 goto bad_res;
1458 }
1459
f70f01c2
EP		 1460 if (!netdev) {
1461 result = -EINVAL;
1462 goto bad_res;
1463 }
1464
133a3ff2
JB		 1465 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1466 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1467 result = -EINVAL;
1468 goto bad_res;
1469 }
1470
2b5f8b0b
JB		 1471 if (!netif_running(netdev)) {
1472 result = -ENETDOWN;
1473 goto bad_res;
1474 }
1475
31888487
JM		 1476 nla_for_each_nested(nl_txq_params,
1477 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1478 rem_txq_params) {
1479 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1480 nla_data(nl_txq_params),
1481 nla_len(nl_txq_params),
1482 txq_params_policy);
1483 result = parse_txq_params(tb, &txq_params);
1484 if (result)
1485 goto bad_res;
1486
1487 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1488 netdev,
31888487
JM		 1489 &txq_params);
1490 if (result)
1491 goto bad_res;
1492 }
1493 }
55682965 1494
72bdcf34 1495 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1496 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1497 if (result)
1498 goto bad_res;
1499 }
1500
98d2ff8b
JO		 1501 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1502 enum nl80211_tx_power_setting type;
1503 int idx, mbm = 0;
1504
1505 if (!rdev->ops->set_tx_power) {
60ea385f 1506 result = -EOPNOTSUPP;
98d2ff8b
JO		 1507 goto bad_res;
1508 }
1509
1510 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1511 type = nla_get_u32(info->attrs[idx]);
1512
1513 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1514 (type != NL80211_TX_POWER_AUTOMATIC)) {
1515 result = -EINVAL;
1516 goto bad_res;
1517 }
1518
1519 if (type != NL80211_TX_POWER_AUTOMATIC) {
1520 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1521 mbm = nla_get_u32(info->attrs[idx]);
1522 }
1523
1524 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1525 if (result)
1526 goto bad_res;
1527 }
1528
afe0cbf8
BR		 1529 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1530 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1531 u32 tx_ant, rx_ant;
7f531e03
BR		 1532 if ((!rdev->wiphy.available_antennas_tx &&
1533 !rdev->wiphy.available_antennas_rx) ||
1534 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1535 result = -EOPNOTSUPP;
1536 goto bad_res;
1537 }
1538
1539 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1540 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1541
a7ffac95 1542 /* reject antenna configurations which don't match the
7f531e03
BR		 1543 * available antenna masks, except for the "all" mask */
1544 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1545 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1546 result = -EINVAL;
1547 goto bad_res;
1548 }
1549
7f531e03
BR		 1550 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1551 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1552
afe0cbf8
BR		 1553 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1554 if (result)
1555 goto bad_res;
1556 }
1557
b9a5f8ca
JM		 1558 changed = 0;
1559
1560 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1561 retry_short = nla_get_u8(
1562 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1563 if (retry_short == 0) {
1564 result = -EINVAL;
1565 goto bad_res;
1566 }
1567 changed |= WIPHY_PARAM_RETRY_SHORT;
1568 }
1569
1570 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1571 retry_long = nla_get_u8(
1572 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1573 if (retry_long == 0) {
1574 result = -EINVAL;
1575 goto bad_res;
1576 }
1577 changed |= WIPHY_PARAM_RETRY_LONG;
1578 }
1579
1580 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1581 frag_threshold = nla_get_u32(
1582 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1583 if (frag_threshold < 256) {
1584 result = -EINVAL;
1585 goto bad_res;
1586 }
1587 if (frag_threshold != (u32) -1) {
1588 /*
1589 * Fragments (apart from the last one) are required to
1590 * have even length. Make the fragmentation code
1591 * simpler by stripping LSB should someone try to use
1592 * odd threshold value.
1593 */
1594 frag_threshold &= ~0x1;
1595 }
1596 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1597 }
1598
1599 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1600 rts_threshold = nla_get_u32(
1601 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1602 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1603 }
1604
81077e82
LT		 1605 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1606 coverage_class = nla_get_u8(
1607 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1608 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1609 }
1610
b9a5f8ca
JM		 1611 if (changed) {
1612 u8 old_retry_short, old_retry_long;
1613 u32 old_frag_threshold, old_rts_threshold;
81077e82 1614 u8 old_coverage_class;
b9a5f8ca
JM		 1615
1616 if (!rdev->ops->set_wiphy_params) {
1617 result = -EOPNOTSUPP;
1618 goto bad_res;
1619 }
1620
1621 old_retry_short = rdev->wiphy.retry_short;
1622 old_retry_long = rdev->wiphy.retry_long;
1623 old_frag_threshold = rdev->wiphy.frag_threshold;
1624 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1625 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1626
1627 if (changed & WIPHY_PARAM_RETRY_SHORT)
1628 rdev->wiphy.retry_short = retry_short;
1629 if (changed & WIPHY_PARAM_RETRY_LONG)
1630 rdev->wiphy.retry_long = retry_long;
1631 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1632 rdev->wiphy.frag_threshold = frag_threshold;
1633 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1634 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1635 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1636 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1637
1638 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1639 if (result) {
1640 rdev->wiphy.retry_short = old_retry_short;
1641 rdev->wiphy.retry_long = old_retry_long;
1642 rdev->wiphy.frag_threshold = old_frag_threshold;
1643 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1644 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1645 }
1646 }
72bdcf34 1647
306d6112 1648 bad_res:
4bbf4d56 1649 mutex_unlock(&rdev->mtx);
f444de05
JB		 1650 if (netdev)
1651 dev_put(netdev);
55682965
JB		 1652 return result;
1653}
1654
1655
1656static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1657 struct cfg80211_registered_device *rdev,
55682965
JB		 1658 struct net_device *dev)
1659{
1660 void *hdr;
1661
1662 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1663 if (!hdr)
1664 return -1;
1665
9360ffd1
DM		 1666 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1667 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1668 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1669 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1670 dev->ieee80211_ptr->iftype) ||
1671 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1672 rdev->devlist_generation ^
1673 (cfg80211_rdev_list_generation << 2)))
1674 goto nla_put_failure;
f5ea9120 1675
d91df0e3
PF		 1676 if (rdev->ops->get_channel) {
1677 struct ieee80211_channel *chan;
1678 enum nl80211_channel_type channel_type;
1679
1680 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
59ef43e6
JL		 1681 if (chan &&
1682 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1683 chan->center_freq) ||
1684 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1685 channel_type)))
1686 goto nla_put_failure;
d91df0e3
PF		 1687 }
1688
55682965
JB		 1689 return genlmsg_end(msg, hdr);
1690
1691 nla_put_failure:
bc3ed28c
TG		 1692 genlmsg_cancel(msg, hdr);
1693 return -EMSGSIZE;
55682965
JB		 1694}
1695
1696static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1697{
1698 int wp_idx = 0;
1699 int if_idx = 0;
1700 int wp_start = cb->args[0];
1701 int if_start = cb->args[1];
f5ea9120 1702 struct cfg80211_registered_device *rdev;
55682965
JB		 1703 struct wireless_dev *wdev;
1704
a1794390 1705 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1706 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1707 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1708 continue;
bba95fef
JB		 1709 if (wp_idx < wp_start) {
1710 wp_idx++;
55682965 1711 continue;
bba95fef 1712 }
55682965
JB		 1713 if_idx = 0;
1714
f5ea9120
JB		 1715 mutex_lock(&rdev->devlist_mtx);
1716 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1717 if (if_idx < if_start) {
1718 if_idx++;
55682965 1719 continue;
bba95fef 1720 }
55682965
JB		 1721 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1722 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1723 rdev, wdev->netdev) < 0) {
1724 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1725 goto out;
1726 }
1727 if_idx++;
55682965 1728 }
f5ea9120 1729 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1730
1731 wp_idx++;
55682965 1732 }
bba95fef 1733 out:
a1794390 1734 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1735
1736 cb->args[0] = wp_idx;
1737 cb->args[1] = if_idx;
1738
1739 return skb->len;
1740}
1741
1742static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1743{
1744 struct sk_buff *msg;
4c476991
JB		 1745 struct cfg80211_registered_device *dev = info->user_ptr[0];
1746 struct net_device *netdev = info->user_ptr[1];
55682965 1747
fd2120ca 1748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1749 if (!msg)
4c476991 1750 return -ENOMEM;
55682965 1751
d726405a 1752 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1753 dev, netdev) < 0) {
1754 nlmsg_free(msg);
1755 return -ENOBUFS;
1756 }
55682965 1757
134e6375 1758 return genlmsg_reply(msg, info);
55682965
JB		 1759}
1760
66f7ac50
MW		 1761static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1762 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1763 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1764 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1765 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1766 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1767};
1768
1769static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1770{
1771 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1772 int flag;
1773
1774 *mntrflags = 0;
1775
1776 if (!nla)
1777 return -EINVAL;
1778
1779 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1780 nla, mntr_flags_policy))
1781 return -EINVAL;
1782
1783 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1784 if (flags[flag])
1785 *mntrflags |= (1<<flag);
1786
1787 return 0;
1788}
1789
9bc383de 1790static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1791 struct net_device *netdev, u8 use_4addr,
1792 enum nl80211_iftype iftype)
9bc383de 1793{
ad4bb6f8 1794 if (!use_4addr) {
f350a0a8 1795 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1796 return -EBUSY;
9bc383de 1797 return 0;
ad4bb6f8 1798 }
9bc383de
JB		 1799
1800 switch (iftype) {
1801 case NL80211_IFTYPE_AP_VLAN:
1802 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1803 return 0;
1804 break;
1805 case NL80211_IFTYPE_STATION:
1806 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1807 return 0;
1808 break;
1809 default:
1810 break;
1811 }
1812
1813 return -EOPNOTSUPP;
1814}
1815
55682965
JB		 1816static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1817{
4c476991 1818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1819 struct vif_params params;
e36d56b6 1820 int err;
04a773ad 1821 enum nl80211_iftype otype, ntype;
4c476991 1822 struct net_device *dev = info->user_ptr[1];
92ffe055 1823 u32 _flags, *flags = NULL;
ac7f9cfa 1824 bool change = false;
55682965 1825
2ec600d6
LCC		 1826 memset(&params, 0, sizeof(params));
1827
04a773ad 1828 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1829
723b038d 1830 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1831 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1832 if (otype != ntype)
ac7f9cfa 1833 change = true;
4c476991
JB		 1834 if (ntype > NL80211_IFTYPE_MAX)
1835 return -EINVAL;
723b038d
JB		 1836 }
1837
92ffe055 1838 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1839 struct wireless_dev *wdev = dev->ieee80211_ptr;
1840
4c476991
JB		 1841 if (ntype != NL80211_IFTYPE_MESH_POINT)
1842 return -EINVAL;
29cbe68c
JB		 1843 if (netif_running(dev))
1844 return -EBUSY;
1845
1846 wdev_lock(wdev);
1847 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1848 IEEE80211_MAX_MESH_ID_LEN);
1849 wdev->mesh_id_up_len =
1850 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1851 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1852 wdev->mesh_id_up_len);
1853 wdev_unlock(wdev);
2ec600d6
LCC		 1854 }
1855
8b787643
FF		 1856 if (info->attrs[NL80211_ATTR_4ADDR]) {
1857 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1858 change = true;
ad4bb6f8 1859 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1860 if (err)
4c476991 1861 return err;
8b787643
FF		 1862 } else {
1863 params.use_4addr = -1;
1864 }
1865
92ffe055 1866 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1867 if (ntype != NL80211_IFTYPE_MONITOR)
1868 return -EINVAL;
92ffe055
JB		 1869 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1870 &_flags);
ac7f9cfa 1871 if (err)
4c476991 1872 return err;
ac7f9cfa
JB		 1873
1874 flags = &_flags;
1875 change = true;
92ffe055 1876 }
3b85875a 1877
ac7f9cfa 1878 if (change)
3d54d255 1879 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1880 else
1881 err = 0;
60719ffd 1882
9bc383de
JB		 1883 if (!err && params.use_4addr != -1)
1884 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1885
55682965
JB		 1886 return err;
1887}
1888
1889static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1890{
4c476991 1891 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1892 struct vif_params params;
f9e10ce4 1893 struct net_device *dev;
55682965
JB		 1894 int err;
1895 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1896 u32 flags;
55682965 1897
2ec600d6
LCC		 1898 memset(&params, 0, sizeof(params));
1899
55682965
JB		 1900 if (!info->attrs[NL80211_ATTR_IFNAME])
1901 return -EINVAL;
1902
1903 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1904 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1905 if (type > NL80211_IFTYPE_MAX)
1906 return -EINVAL;
1907 }
1908
79c97e97 1909 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1910 !(rdev->wiphy.interface_modes & (1 << type)))
1911 return -EOPNOTSUPP;
55682965 1912
9bc383de 1913 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1914 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1915 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1916 if (err)
4c476991 1917 return err;
9bc383de 1918 }
8b787643 1919
66f7ac50
MW		 1920 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1921 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1922 &flags);
f9e10ce4 1923 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1924 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1925 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1926 if (IS_ERR(dev))
1927 return PTR_ERR(dev);
2ec600d6 1928
29cbe68c
JB		 1929 if (type == NL80211_IFTYPE_MESH_POINT &&
1930 info->attrs[NL80211_ATTR_MESH_ID]) {
1931 struct wireless_dev *wdev = dev->ieee80211_ptr;
1932
1933 wdev_lock(wdev);
1934 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1935 IEEE80211_MAX_MESH_ID_LEN);
1936 wdev->mesh_id_up_len =
1937 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1938 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1939 wdev->mesh_id_up_len);
1940 wdev_unlock(wdev);
1941 }
1942
f9e10ce4 1943 return 0;
55682965
JB		 1944}
1945
1946static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1947{
4c476991
JB		 1948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1949 struct net_device *dev = info->user_ptr[1];
55682965 1950
4c476991
JB		 1951 if (!rdev->ops->del_virtual_intf)
1952 return -EOPNOTSUPP;
55682965 1953
4c476991 1954 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1955}
1956
1d9d9213
SW		 1957static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1958{
1959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1960 struct net_device *dev = info->user_ptr[1];
1961 u16 noack_map;
1962
1963 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1964 return -EINVAL;
1965
1966 if (!rdev->ops->set_noack_map)
1967 return -EOPNOTSUPP;
1968
1969 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1970
1971 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1972}
1973
41ade00f
JB		 1974struct get_key_cookie {
1975 struct sk_buff *msg;
1976 int error;
b9454e83 1977 int idx;
41ade00f
JB		 1978};
1979
1980static void get_key_callback(void *c, struct key_params *params)
1981{
b9454e83 1982 struct nlattr *key;
41ade00f
JB		 1983 struct get_key_cookie *cookie = c;
1984
9360ffd1
DM		 1985 if ((params->key &&
1986 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
1987 params->key_len, params->key)) ||
1988 (params->seq &&
1989 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
1990 params->seq_len, params->seq)) ||
1991 (params->cipher &&
1992 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1993 params->cipher)))
1994 goto nla_put_failure;
41ade00f 1995
b9454e83
JB		 1996 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1997 if (!key)
1998 goto nla_put_failure;
1999
9360ffd1
DM		 2000 if ((params->key &&
2001 nla_put(cookie->msg, NL80211_KEY_DATA,
2002 params->key_len, params->key)) ||
2003 (params->seq &&
2004 nla_put(cookie->msg, NL80211_KEY_SEQ,
2005 params->seq_len, params->seq)) ||
2006 (params->cipher &&
2007 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2008 params->cipher)))
2009 goto nla_put_failure;
b9454e83 2010
9360ffd1
DM		 2011 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2012 goto nla_put_failure;
b9454e83
JB		 2013
2014 nla_nest_end(cookie->msg, key);
2015
41ade00f
JB		 2016 return;
2017 nla_put_failure:
2018 cookie->error = 1;
2019}
2020
2021static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2022{
4c476991 2023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2024 int err;
4c476991 2025 struct net_device *dev = info->user_ptr[1];
41ade00f 2026 u8 key_idx = 0;
e31b8213
JB		 2027 const u8 *mac_addr = NULL;
2028 bool pairwise;
41ade00f
JB		 2029 struct get_key_cookie cookie = {
2030 .error = 0,
2031 };
2032 void *hdr;
2033 struct sk_buff *msg;
2034
2035 if (info->attrs[NL80211_ATTR_KEY_IDX])
2036 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2037
3cfcf6ac 2038 if (key_idx > 5)
41ade00f
JB		 2039 return -EINVAL;
2040
2041 if (info->attrs[NL80211_ATTR_MAC])
2042 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2043
e31b8213
JB		 2044 pairwise = !!mac_addr;
2045 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2046 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2047 if (kt >= NUM_NL80211_KEYTYPES)
2048 return -EINVAL;
2049 if (kt != NL80211_KEYTYPE_GROUP &&
2050 kt != NL80211_KEYTYPE_PAIRWISE)
2051 return -EINVAL;
2052 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2053 }
2054
4c476991
JB		 2055 if (!rdev->ops->get_key)
2056 return -EOPNOTSUPP;
41ade00f 2057
fd2120ca 2058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2059 if (!msg)
2060 return -ENOMEM;
41ade00f
JB		 2061
2062 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2063 NL80211_CMD_NEW_KEY);
4c476991
JB		 2064 if (IS_ERR(hdr))
2065 return PTR_ERR(hdr);
41ade00f
JB		 2066
2067 cookie.msg = msg;
b9454e83 2068 cookie.idx = key_idx;
41ade00f 2069
9360ffd1
DM		 2070 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2071 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2072 goto nla_put_failure;
2073 if (mac_addr &&
2074 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2075 goto nla_put_failure;
41ade00f 2076
e31b8213
JB		 2077 if (pairwise && mac_addr &&
2078 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2079 return -ENOENT;
2080
2081 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2082 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 2083
2084 if (err)
6c95e2a2 2085 goto free_msg;
41ade00f
JB		 2086
2087 if (cookie.error)
2088 goto nla_put_failure;
2089
2090 genlmsg_end(msg, hdr);
4c476991 2091 return genlmsg_reply(msg, info);
41ade00f
JB		 2092
2093 nla_put_failure:
2094 err = -ENOBUFS;
6c95e2a2 2095 free_msg:
41ade00f 2096 nlmsg_free(msg);
41ade00f
JB		 2097 return err;
2098}
2099
2100static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2101{
4c476991 2102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2103 struct key_parse key;
41ade00f 2104 int err;
4c476991 2105 struct net_device *dev = info->user_ptr[1];
41ade00f 2106
b9454e83
JB		 2107 err = nl80211_parse_key(info, &key);
2108 if (err)
2109 return err;
41ade00f 2110
b9454e83 2111 if (key.idx < 0)
41ade00f
JB		 2112 return -EINVAL;
2113
b9454e83
JB		 2114 /* only support setting default key */
2115 if (!key.def && !key.defmgmt)
41ade00f
JB		 2116 return -EINVAL;
2117
dbd2fd65 2118 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2119
dbd2fd65
JB		 2120 if (key.def) {
2121 if (!rdev->ops->set_default_key) {
2122 err = -EOPNOTSUPP;
2123 goto out;
2124 }
41ade00f 2125
dbd2fd65
JB		 2126 err = nl80211_key_allowed(dev->ieee80211_ptr);
2127 if (err)
2128 goto out;
2129
dbd2fd65
JB		 2130 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2131 key.def_uni, key.def_multi);
2132
2133 if (err)
2134 goto out;
fffd0934 2135
3d23e349 2136#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2137 dev->ieee80211_ptr->wext.default_key = key.idx;
2138#endif
2139 } else {
2140 if (key.def_uni || !key.def_multi) {
2141 err = -EINVAL;
2142 goto out;
2143 }
2144
2145 if (!rdev->ops->set_default_mgmt_key) {
2146 err = -EOPNOTSUPP;
2147 goto out;
2148 }
2149
2150 err = nl80211_key_allowed(dev->ieee80211_ptr);
2151 if (err)
2152 goto out;
2153
2154 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2155 dev, key.idx);
2156 if (err)
2157 goto out;
2158
2159#ifdef CONFIG_CFG80211_WEXT
2160 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2161#endif
dbd2fd65
JB		 2162 }
2163
2164 out:
fffd0934 2165 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2166
41ade00f
JB		 2167 return err;
2168}
2169
2170static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2171{
4c476991 2172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2173 int err;
4c476991 2174 struct net_device *dev = info->user_ptr[1];
b9454e83 2175 struct key_parse key;
e31b8213 2176 const u8 *mac_addr = NULL;
41ade00f 2177
b9454e83
JB		 2178 err = nl80211_parse_key(info, &key);
2179 if (err)
2180 return err;
41ade00f 2181
b9454e83 2182 if (!key.p.key)
41ade00f
JB		 2183 return -EINVAL;
2184
41ade00f
JB		 2185 if (info->attrs[NL80211_ATTR_MAC])
2186 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2187
e31b8213
JB		 2188 if (key.type == -1) {
2189 if (mac_addr)
2190 key.type = NL80211_KEYTYPE_PAIRWISE;
2191 else
2192 key.type = NL80211_KEYTYPE_GROUP;
2193 }
2194
2195 /* for now */
2196 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2197 key.type != NL80211_KEYTYPE_GROUP)
2198 return -EINVAL;
2199
4c476991
JB		 2200 if (!rdev->ops->add_key)
2201 return -EOPNOTSUPP;
25e47c18 2202
e31b8213
JB		 2203 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2204 key.type == NL80211_KEYTYPE_PAIRWISE,
2205 mac_addr))
4c476991 2206 return -EINVAL;
41ade00f 2207
fffd0934
JB		 2208 wdev_lock(dev->ieee80211_ptr);
2209 err = nl80211_key_allowed(dev->ieee80211_ptr);
2210 if (!err)
2211 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2212 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2213 mac_addr, &key.p);
2214 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2215
41ade00f
JB		 2216 return err;
2217}
2218
2219static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2220{
4c476991 2221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2222 int err;
4c476991 2223 struct net_device *dev = info->user_ptr[1];
41ade00f 2224 u8 *mac_addr = NULL;
b9454e83 2225 struct key_parse key;
41ade00f 2226
b9454e83
JB		 2227 err = nl80211_parse_key(info, &key);
2228 if (err)
2229 return err;
41ade00f
JB		 2230
2231 if (info->attrs[NL80211_ATTR_MAC])
2232 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2233
e31b8213
JB		 2234 if (key.type == -1) {
2235 if (mac_addr)
2236 key.type = NL80211_KEYTYPE_PAIRWISE;
2237 else
2238 key.type = NL80211_KEYTYPE_GROUP;
2239 }
2240
2241 /* for now */
2242 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2243 key.type != NL80211_KEYTYPE_GROUP)
2244 return -EINVAL;
2245
4c476991
JB		 2246 if (!rdev->ops->del_key)
2247 return -EOPNOTSUPP;
41ade00f 2248
fffd0934
JB		 2249 wdev_lock(dev->ieee80211_ptr);
2250 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2251
2252 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2253 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2254 err = -ENOENT;
2255
fffd0934 2256 if (!err)
e31b8213
JB		 2257 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2258 key.type == NL80211_KEYTYPE_PAIRWISE,
2259 mac_addr);
41ade00f 2260
3d23e349 2261#ifdef CONFIG_CFG80211_WEXT
08645126 2262 if (!err) {
b9454e83 2263 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2264 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2265 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2266 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2267 }
2268#endif
fffd0934 2269 wdev_unlock(dev->ieee80211_ptr);
08645126 2270
41ade00f
JB		 2271 return err;
2272}
2273
8860020e
JB		 2274static int nl80211_parse_beacon(struct genl_info *info,
2275 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2276{
8860020e 2277 bool haveinfo = false;
ed1b6cc7 2278
9946ecfb
JM		 2279 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2280 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2281 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2282 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2283 return -EINVAL;
2284
8860020e 2285 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2286
ed1b6cc7 2287 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2288 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2289 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2290 if (!bcn->head_len)
2291 return -EINVAL;
2292 haveinfo = true;
ed1b6cc7
JB		 2293 }
2294
2295 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2296 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2297 bcn->tail_len =
ed1b6cc7 2298 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2299 haveinfo = true;
ed1b6cc7
JB		 2300 }
2301
4c476991
JB		 2302 if (!haveinfo)
2303 return -EINVAL;
3b85875a 2304
9946ecfb 2305 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2306 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2307 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2308 }
2309
2310 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2311 bcn->proberesp_ies =
9946ecfb 2312 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2313 bcn->proberesp_ies_len =
9946ecfb
JM		 2314 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2315 }
2316
2317 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2318 bcn->assocresp_ies =
9946ecfb 2319 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2320 bcn->assocresp_ies_len =
9946ecfb
JM		 2321 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2322 }
2323
00f740e1 2324 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2325 bcn->probe_resp =
00f740e1 2326 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2327 bcn->probe_resp_len =
00f740e1
AN		 2328 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2329 }
2330
8860020e
JB		 2331 return 0;
2332}
2333
2334static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2335{
2336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2337 struct net_device *dev = info->user_ptr[1];
2338 struct wireless_dev *wdev = dev->ieee80211_ptr;
2339 struct cfg80211_ap_settings params;
2340 int err;
2341
2342 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2343 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2344 return -EOPNOTSUPP;
2345
2346 if (!rdev->ops->start_ap)
2347 return -EOPNOTSUPP;
2348
2349 if (wdev->beacon_interval)
2350 return -EALREADY;
2351
2352 memset(&params, 0, sizeof(params));
2353
2354 /* these are required for START_AP */
2355 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2356 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2357 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2358 return -EINVAL;
2359
2360 err = nl80211_parse_beacon(info, &params.beacon);
2361 if (err)
2362 return err;
2363
2364 params.beacon_interval =
2365 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2366 params.dtim_period =
2367 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2368
2369 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2370 if (err)
2371 return err;
2372
2373 /*
2374 * In theory, some of these attributes should be required here
2375 * but since they were not used when the command was originally
2376 * added, keep them optional for old user space programs to let
2377 * them continue to work with drivers that do not need the
2378 * additional information -- drivers must check!
2379 */
2380 if (info->attrs[NL80211_ATTR_SSID]) {
2381 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2382 params.ssid_len =
2383 nla_len(info->attrs[NL80211_ATTR_SSID]);
2384 if (params.ssid_len == 0 ||
2385 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2386 return -EINVAL;
2387 }
2388
2389 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2390 params.hidden_ssid = nla_get_u32(
2391 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2392 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2393 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2394 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2395 return -EINVAL;
2396 }
2397
2398 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2399
2400 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2401 params.auth_type = nla_get_u32(
2402 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2403 if (!nl80211_valid_auth_type(params.auth_type))
2404 return -EINVAL;
2405 } else
2406 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2407
2408 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2409 NL80211_MAX_NR_CIPHER_SUITES);
2410 if (err)
2411 return err;
2412
1b658f11
VT		 2413 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2414 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2415 return -EOPNOTSUPP;
2416 params.inactivity_timeout = nla_get_u16(
2417 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2418 }
2419
aa430da4
JB		 2420 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2421 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2422
2423 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2424 !nl80211_valid_channel_type(info, &channel_type))
2425 return -EINVAL;
2426
2427 params.channel = rdev_freq_to_chan(rdev,
2428 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2429 channel_type);
2430 if (!params.channel)
2431 return -EINVAL;
2432 params.channel_type = channel_type;
2433 } else if (wdev->preset_chan) {
2434 params.channel = wdev->preset_chan;
2435 params.channel_type = wdev->preset_chantype;
2436 } else
2437 return -EINVAL;
2438
2439 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2440 params.channel_type))
2441 return -EINVAL;
2442
8860020e
JB		 2443 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
2444 if (!err)
2445 wdev->beacon_interval = params.beacon_interval;
56d1893d 2446 return err;
ed1b6cc7
JB		 2447}
2448
8860020e
JB		 2449static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2450{
2451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2452 struct net_device *dev = info->user_ptr[1];
2453 struct wireless_dev *wdev = dev->ieee80211_ptr;
2454 struct cfg80211_beacon_data params;
2455 int err;
2456
2457 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2459 return -EOPNOTSUPP;
2460
2461 if (!rdev->ops->change_beacon)
2462 return -EOPNOTSUPP;
2463
2464 if (!wdev->beacon_interval)
2465 return -EINVAL;
2466
2467 err = nl80211_parse_beacon(info, &params);
2468 if (err)
2469 return err;
2470
2471 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2472}
2473
2474static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2475{
4c476991
JB		 2476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2477 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2478 struct wireless_dev *wdev = dev->ieee80211_ptr;
2479 int err;
ed1b6cc7 2480
8860020e 2481 if (!rdev->ops->stop_ap)
4c476991 2482 return -EOPNOTSUPP;
ed1b6cc7 2483
074ac8df 2484 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2485 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2486 return -EOPNOTSUPP;
3b85875a 2487
8860020e
JB		 2488 if (!wdev->beacon_interval)
2489 return -ENOENT;
2490
2491 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
56d1893d
JB		 2492 if (!err)
2493 wdev->beacon_interval = 0;
2494 return err;
ed1b6cc7
JB		 2495}
2496
5727ef1b
JB		 2497static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2498 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2499 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2500 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2501 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2502 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2503 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2504};
2505
eccb8e8f 2506static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2507 enum nl80211_iftype iftype,
eccb8e8f 2508 struct station_parameters *params)
5727ef1b
JB		 2509{
2510 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2511 struct nlattr *nla;
5727ef1b
JB		 2512 int flag;
2513
eccb8e8f
JB		 2514 /*
2515 * Try parsing the new attribute first so userspace
2516 * can specify both for older kernels.
2517 */
2518 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2519 if (nla) {
2520 struct nl80211_sta_flag_update *sta_flags;
2521
2522 sta_flags = nla_data(nla);
2523 params->sta_flags_mask = sta_flags->mask;
2524 params->sta_flags_set = sta_flags->set;
2525 if ((params->sta_flags_mask |
2526 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2527 return -EINVAL;
2528 return 0;
2529 }
2530
2531 /* if present, parse the old attribute */
5727ef1b 2532
eccb8e8f 2533 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2534 if (!nla)
2535 return 0;
2536
2537 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2538 nla, sta_flags_policy))
2539 return -EINVAL;
2540
bdd3ae3d
JB		 2541 /*
2542 * Only allow certain flags for interface types so that
2543 * other attributes are silently ignored. Remember that
2544 * this is backward compatibility code with old userspace
2545 * and shouldn't be hit in other cases anyway.
2546 */
2547 switch (iftype) {
2548 case NL80211_IFTYPE_AP:
2549 case NL80211_IFTYPE_AP_VLAN:
2550 case NL80211_IFTYPE_P2P_GO:
2551 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2552 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2553 BIT(NL80211_STA_FLAG_WME) |
2554 BIT(NL80211_STA_FLAG_MFP);
2555 break;
2556 case NL80211_IFTYPE_P2P_CLIENT:
2557 case NL80211_IFTYPE_STATION:
2558 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2559 BIT(NL80211_STA_FLAG_TDLS_PEER);
2560 break;
2561 case NL80211_IFTYPE_MESH_POINT:
2562 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2563 BIT(NL80211_STA_FLAG_MFP) |
2564 BIT(NL80211_STA_FLAG_AUTHORIZED);
2565 default:
2566 return -EINVAL;
2567 }
5727ef1b 2568
3383b5a6
JB		 2569 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2570 if (flags[flag]) {
eccb8e8f 2571 params->sta_flags_set |= (1<<flag);
5727ef1b 2572
3383b5a6
JB		 2573 /* no longer support new API additions in old API */
2574 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2575 return -EINVAL;
2576 }
2577 }
2578
5727ef1b
JB		 2579 return 0;
2580}
2581
c8dcfd8a
FF		 2582static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2583 int attr)
2584{
2585 struct nlattr *rate;
2586 u16 bitrate;
2587
2588 rate = nla_nest_start(msg, attr);
2589 if (!rate)
2590 goto nla_put_failure;
2591
2592 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2593 bitrate = cfg80211_calculate_bitrate(info);
9360ffd1
DM		 2594 if ((bitrate > 0 &&
2595 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2596 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2597 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2598 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2599 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2600 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2601 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2602 goto nla_put_failure;
c8dcfd8a
FF		 2603
2604 nla_nest_end(msg, rate);
2605 return true;
2606
2607nla_put_failure:
2608 return false;
2609}
2610
fd5b74dc 2611static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2612 int flags,
2613 struct cfg80211_registered_device *rdev,
2614 struct net_device *dev,
98b62183 2615 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2616{
2617 void *hdr;
f4263c98 2618 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2619
2620 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2621 if (!hdr)
2622 return -1;
2623
9360ffd1
DM		 2624 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2625 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2626 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2627 goto nla_put_failure;
f5ea9120 2628
2ec600d6
LCC		 2629 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2630 if (!sinfoattr)
fd5b74dc 2631 goto nla_put_failure;
9360ffd1
DM		 2632 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2633 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2634 sinfo->connected_time))
2635 goto nla_put_failure;
2636 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2637 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2638 sinfo->inactive_time))
2639 goto nla_put_failure;
2640 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2641 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2642 sinfo->rx_bytes))
2643 goto nla_put_failure;
2644 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2645 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2646 sinfo->tx_bytes))
2647 goto nla_put_failure;
2648 if ((sinfo->filled & STATION_INFO_LLID) &&
2649 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2650 goto nla_put_failure;
2651 if ((sinfo->filled & STATION_INFO_PLID) &&
2652 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2653 goto nla_put_failure;
2654 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2655 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2656 sinfo->plink_state))
2657 goto nla_put_failure;
66266b3a
JL		 2658 switch (rdev->wiphy.signal_type) {
2659 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2660 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2661 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2662 sinfo->signal))
2663 goto nla_put_failure;
2664 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2665 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2666 sinfo->signal_avg))
2667 goto nla_put_failure;
66266b3a
JL		 2668 break;
2669 default:
2670 break;
2671 }
420e7fab 2672 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2673 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2674 NL80211_STA_INFO_TX_BITRATE))
2675 goto nla_put_failure;
2676 }
2677 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2678 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2679 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2680 goto nla_put_failure;
420e7fab 2681 }
9360ffd1
DM		 2682 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2683 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2684 sinfo->rx_packets))
2685 goto nla_put_failure;
2686 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2687 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2688 sinfo->tx_packets))
2689 goto nla_put_failure;
2690 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2691 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2692 sinfo->tx_retries))
2693 goto nla_put_failure;
2694 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2695 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2696 sinfo->tx_failed))
2697 goto nla_put_failure;
2698 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2699 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2700 sinfo->beacon_loss_count))
2701 goto nla_put_failure;
f4263c98
PS		 2702 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2703 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2704 if (!bss_param)
2705 goto nla_put_failure;
2706
9360ffd1
DM		 2707 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2708 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2709 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2710 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2711 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2712 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2713 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2714 sinfo->bss_param.dtim_period) ||
2715 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2716 sinfo->bss_param.beacon_interval))
2717 goto nla_put_failure;
f4263c98
PS		 2718
2719 nla_nest_end(msg, bss_param);
2720 }
9360ffd1
DM		 2721 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2722 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2723 sizeof(struct nl80211_sta_flag_update),
2724 &sinfo->sta_flags))
2725 goto nla_put_failure;
7eab0f64
JL		 2726 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2727 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2728 sinfo->t_offset))
2729 goto nla_put_failure;
2ec600d6 2730 nla_nest_end(msg, sinfoattr);
fd5b74dc 2731
9360ffd1
DM		 2732 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2733 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2734 sinfo->assoc_req_ies))
2735 goto nla_put_failure;
50d3dfb7 2736
fd5b74dc
JB		 2737 return genlmsg_end(msg, hdr);
2738
2739 nla_put_failure:
bc3ed28c
TG		 2740 genlmsg_cancel(msg, hdr);
2741 return -EMSGSIZE;
fd5b74dc
JB		 2742}
2743
2ec600d6 2744static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2745 struct netlink_callback *cb)
2ec600d6 2746{
2ec600d6
LCC		 2747 struct station_info sinfo;
2748 struct cfg80211_registered_device *dev;
bba95fef 2749 struct net_device *netdev;
2ec600d6 2750 u8 mac_addr[ETH_ALEN];
bba95fef 2751 int sta_idx = cb->args[1];
2ec600d6 2752 int err;
2ec600d6 2753
67748893
JB		 2754 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2755 if (err)
2756 return err;
bba95fef
JB		 2757
2758 if (!dev->ops->dump_station) {
eec60b03 2759 err = -EOPNOTSUPP;
bba95fef
JB		 2760 goto out_err;
2761 }
2762
bba95fef 2763 while (1) {
f612cedf 2764 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2765 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2766 mac_addr, &sinfo);
2767 if (err == -ENOENT)
2768 break;
2769 if (err)
3b85875a 2770 goto out_err;
bba95fef
JB		 2771
2772 if (nl80211_send_station(skb,
2773 NETLINK_CB(cb->skb).pid,
2774 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2775 dev, netdev, mac_addr,
bba95fef
JB		 2776 &sinfo) < 0)
2777 goto out;
2778
2779 sta_idx++;
2780 }
2781
2782
2783 out:
2784 cb->args[1] = sta_idx;
2785 err = skb->len;
bba95fef 2786 out_err:
67748893 2787 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2788
2789 return err;
2ec600d6 2790}
fd5b74dc 2791
5727ef1b
JB		 2792static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2793{
4c476991
JB		 2794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2795 struct net_device *dev = info->user_ptr[1];
2ec600d6 2796 struct station_info sinfo;
fd5b74dc
JB		 2797 struct sk_buff *msg;
2798 u8 *mac_addr = NULL;
4c476991 2799 int err;
fd5b74dc 2800
2ec600d6 2801 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2802
2803 if (!info->attrs[NL80211_ATTR_MAC])
2804 return -EINVAL;
2805
2806 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2807
4c476991
JB		 2808 if (!rdev->ops->get_station)
2809 return -EOPNOTSUPP;
3b85875a 2810
4c476991 2811 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2812 if (err)
4c476991 2813 return err;
2ec600d6 2814
fd2120ca 2815 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2816 if (!msg)
4c476991 2817 return -ENOMEM;
fd5b74dc
JB		 2818
2819 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2820 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2821 nlmsg_free(msg);
2822 return -ENOBUFS;
2823 }
3b85875a 2824
4c476991 2825 return genlmsg_reply(msg, info);
5727ef1b
JB		 2826}
2827
2828/*
c258d2de 2829 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2830 */
80b99899
JB		 2831static struct net_device *get_vlan(struct genl_info *info,
2832 struct cfg80211_registered_device *rdev)
5727ef1b 2833{
463d0183 2834 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2835 struct net_device *v;
2836 int ret;
2837
2838 if (!vlanattr)
2839 return NULL;
2840
2841 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2842 if (!v)
2843 return ERR_PTR(-ENODEV);
2844
2845 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2846 ret = -EINVAL;
2847 goto error;
5727ef1b 2848 }
80b99899
JB		 2849
2850 if (!netif_running(v)) {
2851 ret = -ENETDOWN;
2852 goto error;
2853 }
2854
2855 return v;
2856 error:
2857 dev_put(v);
2858 return ERR_PTR(ret);
5727ef1b
JB		 2859}
2860
2861static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2862{
4c476991 2863 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2864 int err;
4c476991 2865 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2866 struct station_parameters params;
2867 u8 *mac_addr = NULL;
2868
2869 memset(&params, 0, sizeof(params));
2870
2871 params.listen_interval = -1;
57cf8043 2872 params.plink_state = -1;
5727ef1b
JB		 2873
2874 if (info->attrs[NL80211_ATTR_STA_AID])
2875 return -EINVAL;
2876
2877 if (!info->attrs[NL80211_ATTR_MAC])
2878 return -EINVAL;
2879
2880 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2881
2882 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2883 params.supported_rates =
2884 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2885 params.supported_rates_len =
2886 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2887 }
2888
2889 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2890 params.listen_interval =
2891 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2892
36aedc90
JM		 2893 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2894 params.ht_capa =
2895 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2896
bdd90d5e
JB		 2897 if (!rdev->ops->change_station)
2898 return -EOPNOTSUPP;
2899
bdd3ae3d 2900 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2901 return -EINVAL;
2902
2ec600d6
LCC		 2903 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2904 params.plink_action =
2905 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2906
9c3990aa
JC		 2907 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2908 params.plink_state =
2909 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2910
a97f4424
JB		 2911 switch (dev->ieee80211_ptr->iftype) {
2912 case NL80211_IFTYPE_AP:
2913 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2914 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2915 /* disallow mesh-specific things */
2916 if (params.plink_action)
bdd90d5e
JB		 2917 return -EINVAL;
2918
2919 /* TDLS can't be set, ... */
2920 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2921 return -EINVAL;
2922 /*
2923 * ... but don't bother the driver with it. This works around
2924 * a hostapd/wpa_supplicant issue -- it always includes the
2925 * TLDS_PEER flag in the mask even for AP mode.
2926 */
2927 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2928
2929 /* accept only the listed bits */
2930 if (params.sta_flags_mask &
2931 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2932 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2933 BIT(NL80211_STA_FLAG_WME) |
2934 BIT(NL80211_STA_FLAG_MFP)))
2935 return -EINVAL;
2936
2937 /* must be last in here for error handling */
2938 params.vlan = get_vlan(info, rdev);
2939 if (IS_ERR(params.vlan))
2940 return PTR_ERR(params.vlan);
a97f4424 2941 break;
074ac8df 2942 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2943 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 2944 /*
2945 * Don't allow userspace to change the TDLS_PEER flag,
2946 * but silently ignore attempts to change it since we
2947 * don't have state here to verify that it doesn't try
2948 * to change the flag.
2949 */
2950 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 2951 /* fall through */
2952 case NL80211_IFTYPE_ADHOC:
2953 /* disallow things sta doesn't support */
2954 if (params.plink_action)
2955 return -EINVAL;
2956 if (params.ht_capa)
2957 return -EINVAL;
2958 if (params.listen_interval >= 0)
2959 return -EINVAL;
bdd90d5e
JB		 2960 /* reject any changes other than AUTHORIZED */
2961 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2962 return -EINVAL;
a97f4424
JB		 2963 break;
2964 case NL80211_IFTYPE_MESH_POINT:
2965 /* disallow things mesh doesn't support */
2966 if (params.vlan)
bdd90d5e 2967 return -EINVAL;
a97f4424 2968 if (params.ht_capa)
bdd90d5e 2969 return -EINVAL;
a97f4424 2970 if (params.listen_interval >= 0)
bdd90d5e
JB		 2971 return -EINVAL;
2972 /*
2973 * No special handling for TDLS here -- the userspace
2974 * mesh code doesn't have this bug.
2975 */
b39c48fa
JC		 2976 if (params.sta_flags_mask &
2977 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2978 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2979 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 2980 return -EINVAL;
a97f4424
JB		 2981 break;
2982 default:
bdd90d5e 2983 return -EOPNOTSUPP;
034d655e
JB		 2984 }
2985
bdd90d5e 2986 /* be aware of params.vlan when changing code here */
5727ef1b 2987
79c97e97 2988 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2989
5727ef1b
JB		 2990 if (params.vlan)
2991 dev_put(params.vlan);
3b85875a 2992
5727ef1b
JB		 2993 return err;
2994}
2995
c75786c9
EP		 2996static struct nla_policy
2997nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2998 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2999 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3000};
3001
5727ef1b
JB		 3002static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3003{
4c476991 3004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3005 int err;
4c476991 3006 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3007 struct station_parameters params;
3008 u8 *mac_addr = NULL;
3009
3010 memset(&params, 0, sizeof(params));
3011
3012 if (!info->attrs[NL80211_ATTR_MAC])
3013 return -EINVAL;
3014
5727ef1b
JB		 3015 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3016 return -EINVAL;
3017
3018 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3019 return -EINVAL;
3020
0e956c13
TLSC		 3021 if (!info->attrs[NL80211_ATTR_STA_AID])
3022 return -EINVAL;
3023
5727ef1b
JB		 3024 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3025 params.supported_rates =
3026 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3027 params.supported_rates_len =
3028 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3029 params.listen_interval =
3030 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3031
0e956c13
TLSC		 3032 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3033 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3034 return -EINVAL;
51b50fbe 3035
36aedc90
JM		 3036 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3037 params.ht_capa =
3038 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3039
96b78dff
JC		 3040 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3041 params.plink_action =
3042 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3043
bdd90d5e
JB		 3044 if (!rdev->ops->add_station)
3045 return -EOPNOTSUPP;
3046
bdd3ae3d 3047 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3048 return -EINVAL;
3049
bdd90d5e
JB		 3050 switch (dev->ieee80211_ptr->iftype) {
3051 case NL80211_IFTYPE_AP:
3052 case NL80211_IFTYPE_AP_VLAN:
3053 case NL80211_IFTYPE_P2P_GO:
3054 /* parse WME attributes if sta is WME capable */
3055 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3056 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3057 info->attrs[NL80211_ATTR_STA_WME]) {
3058 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3059 struct nlattr *nla;
3060
3061 nla = info->attrs[NL80211_ATTR_STA_WME];
3062 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3063 nl80211_sta_wme_policy);
3064 if (err)
3065 return err;
3066
3067 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3068 params.uapsd_queues =
3069 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3070 if (params.uapsd_queues &
3071 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3072 return -EINVAL;
c75786c9 3073
bdd90d5e
JB		 3074 if (tb[NL80211_STA_WME_MAX_SP])
3075 params.max_sp =
3076 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3077
bdd90d5e
JB		 3078 if (params.max_sp &
3079 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3080 return -EINVAL;
4319e193 3081
bdd90d5e
JB		 3082 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3083 }
3084 /* TDLS peers cannot be added */
3085 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3086 return -EINVAL;
bdd90d5e
JB		 3087 /* but don't bother the driver with it */
3088 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3089
bdd90d5e
JB		 3090 /* must be last in here for error handling */
3091 params.vlan = get_vlan(info, rdev);
3092 if (IS_ERR(params.vlan))
3093 return PTR_ERR(params.vlan);
3094 break;
3095 case NL80211_IFTYPE_MESH_POINT:
3096 /* TDLS peers cannot be added */
3097 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3098 return -EINVAL;
3099 break;
3100 case NL80211_IFTYPE_STATION:
3101 /* Only TDLS peers can be added */
3102 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3103 return -EINVAL;
3104 /* Can only add if TDLS ... */
3105 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3106 return -EOPNOTSUPP;
3107 /* ... with external setup is supported */
3108 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3109 return -EOPNOTSUPP;
3110 break;
3111 default:
3112 return -EOPNOTSUPP;
c75786c9
EP		 3113 }
3114
bdd90d5e 3115 /* be aware of params.vlan when changing code here */
5727ef1b 3116
79c97e97 3117 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3118
5727ef1b
JB		 3119 if (params.vlan)
3120 dev_put(params.vlan);
5727ef1b
JB		 3121 return err;
3122}
3123
3124static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3125{
4c476991
JB		 3126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3127 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3128 u8 *mac_addr = NULL;
3129
3130 if (info->attrs[NL80211_ATTR_MAC])
3131 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3132
e80cf853 3133 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3134 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3135 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3136 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3137 return -EINVAL;
5727ef1b 3138
4c476991
JB		 3139 if (!rdev->ops->del_station)
3140 return -EOPNOTSUPP;
3b85875a 3141
4c476991 3142 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 3143}
3144
2ec600d6
LCC		 3145static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3146 int flags, struct net_device *dev,
3147 u8 *dst, u8 *next_hop,
3148 struct mpath_info *pinfo)
3149{
3150 void *hdr;
3151 struct nlattr *pinfoattr;
3152
3153 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3154 if (!hdr)
3155 return -1;
3156
9360ffd1
DM		 3157 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3158 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3159 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3160 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3161 goto nla_put_failure;
f5ea9120 3162
2ec600d6
LCC		 3163 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3164 if (!pinfoattr)
3165 goto nla_put_failure;
9360ffd1
DM		 3166 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3167 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3168 pinfo->frame_qlen))
3169 goto nla_put_failure;
3170 if (((pinfo->filled & MPATH_INFO_SN) &&
3171 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3172 ((pinfo->filled & MPATH_INFO_METRIC) &&
3173 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3174 pinfo->metric)) ||
3175 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3176 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3177 pinfo->exptime)) ||
3178 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3179 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3180 pinfo->flags)) ||
3181 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3182 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3183 pinfo->discovery_timeout)) ||
3184 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3185 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3186 pinfo->discovery_retries)))
3187 goto nla_put_failure;
2ec600d6
LCC		 3188
3189 nla_nest_end(msg, pinfoattr);
3190
3191 return genlmsg_end(msg, hdr);
3192
3193 nla_put_failure:
bc3ed28c
TG		 3194 genlmsg_cancel(msg, hdr);
3195 return -EMSGSIZE;
2ec600d6
LCC		 3196}
3197
3198static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3199 struct netlink_callback *cb)
2ec600d6 3200{
2ec600d6
LCC		 3201 struct mpath_info pinfo;
3202 struct cfg80211_registered_device *dev;
bba95fef 3203 struct net_device *netdev;
2ec600d6
LCC		 3204 u8 dst[ETH_ALEN];
3205 u8 next_hop[ETH_ALEN];
bba95fef 3206 int path_idx = cb->args[1];
2ec600d6 3207 int err;
2ec600d6 3208
67748893
JB		 3209 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3210 if (err)
3211 return err;
bba95fef
JB		 3212
3213 if (!dev->ops->dump_mpath) {
eec60b03 3214 err = -EOPNOTSUPP;
bba95fef
JB		 3215 goto out_err;
3216 }
3217
eec60b03
JM		 3218 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3219 err = -EOPNOTSUPP;
0448b5fc 3220 goto out_err;
eec60b03
JM		 3221 }
3222
bba95fef
JB		 3223 while (1) {
3224 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3225 dst, next_hop, &pinfo);
3226 if (err == -ENOENT)
2ec600d6 3227 break;
bba95fef 3228 if (err)
3b85875a 3229 goto out_err;
2ec600d6 3230
bba95fef
JB		 3231 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3232 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3233 netdev, dst, next_hop,
3234 &pinfo) < 0)
3235 goto out;
2ec600d6 3236
bba95fef 3237 path_idx++;
2ec600d6 3238 }
2ec600d6 3239
2ec600d6 3240
bba95fef
JB		 3241 out:
3242 cb->args[1] = path_idx;
3243 err = skb->len;
bba95fef 3244 out_err:
67748893 3245 nl80211_finish_netdev_dump(dev);
bba95fef 3246 return err;
2ec600d6
LCC		 3247}
3248
3249static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3250{
4c476991 3251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3252 int err;
4c476991 3253 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3254 struct mpath_info pinfo;
3255 struct sk_buff *msg;
3256 u8 *dst = NULL;
3257 u8 next_hop[ETH_ALEN];
3258
3259 memset(&pinfo, 0, sizeof(pinfo));
3260
3261 if (!info->attrs[NL80211_ATTR_MAC])
3262 return -EINVAL;
3263
3264 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3265
4c476991
JB		 3266 if (!rdev->ops->get_mpath)
3267 return -EOPNOTSUPP;
2ec600d6 3268
4c476991
JB		 3269 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3270 return -EOPNOTSUPP;
eec60b03 3271
79c97e97 3272 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3273 if (err)
4c476991 3274 return err;
2ec600d6 3275
fd2120ca 3276 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3277 if (!msg)
4c476991 3278 return -ENOMEM;
2ec600d6
LCC		 3279
3280 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3281 dev, dst, next_hop, &pinfo) < 0) {
3282 nlmsg_free(msg);
3283 return -ENOBUFS;
3284 }
3b85875a 3285
4c476991 3286 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3287}
3288
3289static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3290{
4c476991
JB		 3291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3292 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3293 u8 *dst = NULL;
3294 u8 *next_hop = NULL;
3295
3296 if (!info->attrs[NL80211_ATTR_MAC])
3297 return -EINVAL;
3298
3299 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3300 return -EINVAL;
3301
3302 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3303 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3304
4c476991
JB		 3305 if (!rdev->ops->change_mpath)
3306 return -EOPNOTSUPP;
35a8efe1 3307
4c476991
JB		 3308 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3309 return -EOPNOTSUPP;
2ec600d6 3310
4c476991 3311 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3312}
4c476991 3313
2ec600d6
LCC		 3314static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3315{
4c476991
JB		 3316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3317 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3318 u8 *dst = NULL;
3319 u8 *next_hop = NULL;
3320
3321 if (!info->attrs[NL80211_ATTR_MAC])
3322 return -EINVAL;
3323
3324 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3325 return -EINVAL;
3326
3327 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3328 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3329
4c476991
JB		 3330 if (!rdev->ops->add_mpath)
3331 return -EOPNOTSUPP;
35a8efe1 3332
4c476991
JB		 3333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3334 return -EOPNOTSUPP;
2ec600d6 3335
4c476991 3336 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3337}
3338
3339static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3340{
4c476991
JB		 3341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3342 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3343 u8 *dst = NULL;
3344
3345 if (info->attrs[NL80211_ATTR_MAC])
3346 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3347
4c476991
JB		 3348 if (!rdev->ops->del_mpath)
3349 return -EOPNOTSUPP;
3b85875a 3350
4c476991 3351 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3352}
3353
9f1ba906
JM		 3354static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3355{
4c476991
JB		 3356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3357 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3358 struct bss_parameters params;
3359
3360 memset(&params, 0, sizeof(params));
3361 /* default to not changing parameters */
3362 params.use_cts_prot = -1;
3363 params.use_short_preamble = -1;
3364 params.use_short_slot_time = -1;
fd8aaaf3 3365 params.ap_isolate = -1;
50b12f59 3366 params.ht_opmode = -1;
9f1ba906
JM		 3367
3368 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3369 params.use_cts_prot =
3370 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3371 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3372 params.use_short_preamble =
3373 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3374 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3375 params.use_short_slot_time =
3376 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3377 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3378 params.basic_rates =
3379 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3380 params.basic_rates_len =
3381 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3382 }
fd8aaaf3
FF		 3383 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3384 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3385 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3386 params.ht_opmode =
3387 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3388
4c476991
JB		 3389 if (!rdev->ops->change_bss)
3390 return -EOPNOTSUPP;
9f1ba906 3391
074ac8df 3392 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3393 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3394 return -EOPNOTSUPP;
3b85875a 3395
4c476991 3396 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3397}
3398
b54452b0 3399static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3400 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3401 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3402 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3403 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3404 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3405 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3406};
3407
3408static int parse_reg_rule(struct nlattr *tb[],
3409 struct ieee80211_reg_rule *reg_rule)
3410{
3411 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3412 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3413
3414 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3415 return -EINVAL;
3416 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3417 return -EINVAL;
3418 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3419 return -EINVAL;
3420 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3421 return -EINVAL;
3422 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3423 return -EINVAL;
3424
3425 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3426
3427 freq_range->start_freq_khz =
3428 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3429 freq_range->end_freq_khz =
3430 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3431 freq_range->max_bandwidth_khz =
3432 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3433
3434 power_rule->max_eirp =
3435 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3436
3437 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3438 power_rule->max_antenna_gain =
3439 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3440
3441 return 0;
3442}
3443
3444static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3445{
3446 int r;
3447 char *data = NULL;
3448
80778f18
LR		 3449 /*
3450 * You should only get this when cfg80211 hasn't yet initialized
3451 * completely when built-in to the kernel right between the time
3452 * window between nl80211_init() and regulatory_init(), if that is
3453 * even possible.
3454 */
3455 mutex_lock(&cfg80211_mutex);
3456 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3457 mutex_unlock(&cfg80211_mutex);
3458 return -EINPROGRESS;
80778f18 3459 }
fe33eb39 3460 mutex_unlock(&cfg80211_mutex);
80778f18 3461
fe33eb39
LR		 3462 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3463 return -EINVAL;
b2e1b302
LR		 3464
3465 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3466
fe33eb39
LR		 3467 r = regulatory_hint_user(data);
3468
b2e1b302
LR		 3469 return r;
3470}
3471
24bdd9f4 3472static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3473 struct genl_info *info)
93da9cc1 3474{
4c476991 3475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3476 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3477 struct wireless_dev *wdev = dev->ieee80211_ptr;
3478 struct mesh_config cur_params;
3479 int err = 0;
93da9cc1 3480 void *hdr;
3481 struct nlattr *pinfoattr;
3482 struct sk_buff *msg;
3483
29cbe68c
JB		 3484 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3485 return -EOPNOTSUPP;
3486
24bdd9f4 3487 if (!rdev->ops->get_mesh_config)
4c476991 3488 return -EOPNOTSUPP;
f3f92586 3489
29cbe68c
JB		 3490 wdev_lock(wdev);
3491 /* If not connected, get default parameters */
3492 if (!wdev->mesh_id_len)
3493 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3494 else
24bdd9f4 3495 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3496 &cur_params);
3497 wdev_unlock(wdev);
3498
93da9cc1 3499 if (err)
4c476991 3500 return err;
93da9cc1 3501
3502 /* Draw up a netlink message to send back */
fd2120ca 3503 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3504 if (!msg)
3505 return -ENOMEM;
93da9cc1 3506 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3507 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3508 if (!hdr)
efe1cf0c 3509 goto out;
24bdd9f4 3510 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3511 if (!pinfoattr)
3512 goto nla_put_failure;
9360ffd1
DM		 3513 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3514 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3515 cur_params.dot11MeshRetryTimeout) ||
3516 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3517 cur_params.dot11MeshConfirmTimeout) ||
3518 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3519 cur_params.dot11MeshHoldingTimeout) ||
3520 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3521 cur_params.dot11MeshMaxPeerLinks) ||
3522 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3523 cur_params.dot11MeshMaxRetries) ||
3524 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3525 cur_params.dot11MeshTTL) ||
3526 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3527 cur_params.element_ttl) ||
3528 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3529 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3530 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3531 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3532 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3533 cur_params.dot11MeshHWMPmaxPREQretries) ||
3534 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3535 cur_params.path_refresh_time) ||
3536 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3537 cur_params.min_discovery_timeout) ||
3538 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3539 cur_params.dot11MeshHWMPactivePathTimeout) ||
3540 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3541 cur_params.dot11MeshHWMPpreqMinInterval) ||
3542 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3543 cur_params.dot11MeshHWMPperrMinInterval) ||
3544 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3545 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3546 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3547 cur_params.dot11MeshHWMPRootMode) ||
3548 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3549 cur_params.dot11MeshHWMPRannInterval) ||
3550 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3551 cur_params.dot11MeshGateAnnouncementProtocol) ||
3552 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3553 cur_params.dot11MeshForwarding) ||
3554 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3555 cur_params.rssi_threshold) ||
3556 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3557 cur_params.ht_opmode) ||
3558 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3559 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3560 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3561 cur_params.dot11MeshHWMProotInterval) ||
3562 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3563 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3564 goto nla_put_failure;
93da9cc1 3565 nla_nest_end(msg, pinfoattr);
3566 genlmsg_end(msg, hdr);
4c476991 3567 return genlmsg_reply(msg, info);
93da9cc1 3568
3b85875a 3569 nla_put_failure:
93da9cc1 3570 genlmsg_cancel(msg, hdr);
efe1cf0c 3571 out:
d080e275 3572 nlmsg_free(msg);
4c476991 3573 return -ENOBUFS;
93da9cc1 3574}
3575
b54452b0 3576static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3577 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3578 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3579 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3580 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3581 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3582 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3583 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3584 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3585 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3586 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3587 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3588 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3589 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3590 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3591 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3592 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3593 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3594 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3595 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3596 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3597 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3598 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3599 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3600 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3601 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3602};
3603
c80d545d
JC		 3604static const struct nla_policy
3605 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3606 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3607 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3608 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3609 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3610 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3611 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3612 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3613};
3614
24bdd9f4 3615static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3616 struct mesh_config *cfg,
3617 u32 *mask_out)
93da9cc1 3618{
93da9cc1 3619 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3620 u32 mask = 0;
93da9cc1 3621
bd90fdcc
JB		 3622#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3623do {\
3624 if (table[attr_num]) {\
3625 cfg->param = nla_fn(table[attr_num]); \
3626 mask |= (1 << (attr_num - 1)); \
3627 } \
3628} while (0);\
3629
3630
24bdd9f4 3631 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3632 return -EINVAL;
3633 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3634 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3635 nl80211_meshconf_params_policy))
93da9cc1 3636 return -EINVAL;
3637
93da9cc1 3638 /* This makes sure that there aren't more than 32 mesh config
3639 * parameters (otherwise our bitfield scheme would not work.) */
3640 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3641
3642 /* Fill in the params struct */
93da9cc1 3643 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3644 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3645 nla_get_u16);
93da9cc1 3646 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3647 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3648 nla_get_u16);
93da9cc1 3649 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3650 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3651 nla_get_u16);
93da9cc1 3652 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3653 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3654 nla_get_u16);
93da9cc1 3655 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3656 mask, NL80211_MESHCONF_MAX_RETRIES,
3657 nla_get_u8);
93da9cc1 3658 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3659 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3660 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3661 mask, NL80211_MESHCONF_ELEMENT_TTL,
3662 nla_get_u8);
93da9cc1 3663 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3664 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3665 nla_get_u8);
3666 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3667 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3668 nla_get_u32);
93da9cc1 3669 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3670 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3671 nla_get_u8);
93da9cc1 3672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3673 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3674 nla_get_u32);
93da9cc1 3675 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3676 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3677 nla_get_u16);
3678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3679 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3680 nla_get_u32);
93da9cc1 3681 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 3682 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3683 nla_get_u16);
dca7e943 3684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 3685 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3686 nla_get_u16);
0507e159 3687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3688 dot11MeshHWMPnetDiameterTraversalTime, mask,
3689 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3690 nla_get_u16);
3691 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3692 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3694 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3695 nla_get_u16);
16dd7267 3696 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3697 dot11MeshGateAnnouncementProtocol, mask,
3698 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3699 nla_get_u8);
94f90656 3700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 3701 mask, NL80211_MESHCONF_FORWARDING,
3702 nla_get_u8);
55335137 3703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 3704 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3705 nla_get_u32);
70c33eaa 3706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 3707 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3708 nla_get_u16);
3709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3710 mask,
3711 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3712 nla_get_u32);
3713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3714 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3715 nla_get_u16);
3716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3717 dot11MeshHWMPconfirmationInterval, mask,
3718 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 3719 nla_get_u16);
bd90fdcc
JB		 3720 if (mask_out)
3721 *mask_out = mask;
c80d545d 3722
bd90fdcc
JB		 3723 return 0;
3724
3725#undef FILL_IN_MESH_PARAM_IF_SET
3726}
3727
c80d545d
JC		 3728static int nl80211_parse_mesh_setup(struct genl_info *info,
3729 struct mesh_setup *setup)
3730{
3731 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3732
3733 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3734 return -EINVAL;
3735 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3736 info->attrs[NL80211_ATTR_MESH_SETUP],
3737 nl80211_mesh_setup_params_policy))
3738 return -EINVAL;
3739
d299a1f2
JC		 3740 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3741 setup->sync_method =
3742 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3743 IEEE80211_SYNC_METHOD_VENDOR :
3744 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3745
c80d545d
JC		 3746 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3747 setup->path_sel_proto =
3748 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3749 IEEE80211_PATH_PROTOCOL_VENDOR :
3750 IEEE80211_PATH_PROTOCOL_HWMP;
3751
3752 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3753 setup->path_metric =
3754 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3755 IEEE80211_PATH_METRIC_VENDOR :
3756 IEEE80211_PATH_METRIC_AIRTIME;
3757
581a8b0f
JC		 3758
3759 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3760 struct nlattr *ieattr =
581a8b0f 3761 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3762 if (!is_valid_ie_attr(ieattr))
3763 return -EINVAL;
581a8b0f
JC		 3764 setup->ie = nla_data(ieattr);
3765 setup->ie_len = nla_len(ieattr);
c80d545d 3766 }
b130e5ce
JC		 3767 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3768 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3769
3770 return 0;
3771}
3772
24bdd9f4 3773static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3774 struct genl_info *info)
bd90fdcc
JB		 3775{
3776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3777 struct net_device *dev = info->user_ptr[1];
29cbe68c 3778 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3779 struct mesh_config cfg;
3780 u32 mask;
3781 int err;
3782
29cbe68c
JB		 3783 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3784 return -EOPNOTSUPP;
3785
24bdd9f4 3786 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3787 return -EOPNOTSUPP;
3788
24bdd9f4 3789 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3790 if (err)
3791 return err;
3792
29cbe68c
JB		 3793 wdev_lock(wdev);
3794 if (!wdev->mesh_id_len)
3795 err = -ENOLINK;
3796
3797 if (!err)
24bdd9f4 3798 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3799 mask, &cfg);
3800
3801 wdev_unlock(wdev);
3802
3803 return err;
93da9cc1 3804}
3805
f130347c
LR		 3806static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3807{
3808 struct sk_buff *msg;
3809 void *hdr = NULL;
3810 struct nlattr *nl_reg_rules;
3811 unsigned int i;
3812 int err = -EINVAL;
3813
a1794390 3814 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3815
3816 if (!cfg80211_regdomain)
3817 goto out;
3818
fd2120ca 3819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3820 if (!msg) {
3821 err = -ENOBUFS;
3822 goto out;
3823 }
3824
3825 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3826 NL80211_CMD_GET_REG);
3827 if (!hdr)
efe1cf0c 3828 goto put_failure;
f130347c 3829
9360ffd1
DM		 3830 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3831 cfg80211_regdomain->alpha2) ||
3832 (cfg80211_regdomain->dfs_region &&
3833 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3834 cfg80211_regdomain->dfs_region)))
3835 goto nla_put_failure;
f130347c
LR		 3836
3837 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3838 if (!nl_reg_rules)
3839 goto nla_put_failure;
3840
3841 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3842 struct nlattr *nl_reg_rule;
3843 const struct ieee80211_reg_rule *reg_rule;
3844 const struct ieee80211_freq_range *freq_range;
3845 const struct ieee80211_power_rule *power_rule;
3846
3847 reg_rule = &cfg80211_regdomain->reg_rules[i];
3848 freq_range = &reg_rule->freq_range;
3849 power_rule = &reg_rule->power_rule;
3850
3851 nl_reg_rule = nla_nest_start(msg, i);
3852 if (!nl_reg_rule)
3853 goto nla_put_failure;
3854
9360ffd1
DM		 3855 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3856 reg_rule->flags) ||
3857 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3858 freq_range->start_freq_khz) ||
3859 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3860 freq_range->end_freq_khz) ||
3861 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3862 freq_range->max_bandwidth_khz) ||
3863 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3864 power_rule->max_antenna_gain) ||
3865 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3866 power_rule->max_eirp))
3867 goto nla_put_failure;
f130347c
LR		 3868
3869 nla_nest_end(msg, nl_reg_rule);
3870 }
3871
3872 nla_nest_end(msg, nl_reg_rules);
3873
3874 genlmsg_end(msg, hdr);
134e6375 3875 err = genlmsg_reply(msg, info);
f130347c
LR		 3876 goto out;
3877
3878nla_put_failure:
3879 genlmsg_cancel(msg, hdr);
efe1cf0c 3880put_failure:
d080e275 3881 nlmsg_free(msg);
f130347c
LR		 3882 err = -EMSGSIZE;
3883out:
a1794390 3884 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3885 return err;
3886}
3887
b2e1b302
LR		 3888static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3889{
3890 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3891 struct nlattr *nl_reg_rule;
3892 char *alpha2 = NULL;
3893 int rem_reg_rules = 0, r = 0;
3894 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3895 u8 dfs_region = 0;
b2e1b302
LR		 3896 struct ieee80211_regdomain *rd = NULL;
3897
3898 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3899 return -EINVAL;
3900
3901 if (!info->attrs[NL80211_ATTR_REG_RULES])
3902 return -EINVAL;
3903
3904 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3905
8b60b078
LR		 3906 if (info->attrs[NL80211_ATTR_DFS_REGION])
3907 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3908
b2e1b302
LR		 3909 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3910 rem_reg_rules) {
3911 num_rules++;
3912 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3913 return -EINVAL;
b2e1b302
LR		 3914 }
3915
61405e97
LR		 3916 mutex_lock(&cfg80211_mutex);
3917
d0e18f83
LR		 3918 if (!reg_is_valid_request(alpha2)) {
3919 r = -EINVAL;
3920 goto bad_reg;
3921 }
b2e1b302
LR		 3922
3923 size_of_regd = sizeof(struct ieee80211_regdomain) +
3924 (num_rules * sizeof(struct ieee80211_reg_rule));
3925
3926 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3927 if (!rd) {
3928 r = -ENOMEM;
3929 goto bad_reg;
3930 }
b2e1b302
LR		 3931
3932 rd->n_reg_rules = num_rules;
3933 rd->alpha2[0] = alpha2[0];
3934 rd->alpha2[1] = alpha2[1];
3935
8b60b078
LR		 3936 /*
3937 * Disable DFS master mode if the DFS region was
3938 * not supported or known on this kernel.
3939 */
3940 if (reg_supported_dfs_region(dfs_region))
3941 rd->dfs_region = dfs_region;
3942
b2e1b302
LR		 3943 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3944 rem_reg_rules) {
3945 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3946 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3947 reg_rule_policy);
3948 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3949 if (r)
3950 goto bad_reg;
3951
3952 rule_idx++;
3953
d0e18f83
LR		 3954 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3955 r = -EINVAL;
b2e1b302 3956 goto bad_reg;
d0e18f83 3957 }
b2e1b302
LR		 3958 }
3959
3960 BUG_ON(rule_idx != num_rules);
3961
b2e1b302 3962 r = set_regdom(rd);
61405e97 3963
a1794390 3964 mutex_unlock(&cfg80211_mutex);
d0e18f83 3965
b2e1b302
LR		 3966 return r;
3967
d2372b31 3968 bad_reg:
61405e97 3969 mutex_unlock(&cfg80211_mutex);
b2e1b302 3970 kfree(rd);
d0e18f83 3971 return r;
b2e1b302
LR		 3972}
3973
83f5e2cf
JB		 3974static int validate_scan_freqs(struct nlattr *freqs)
3975{
3976 struct nlattr *attr1, *attr2;
3977 int n_channels = 0, tmp1, tmp2;
3978
3979 nla_for_each_nested(attr1, freqs, tmp1) {
3980 n_channels++;
3981 /*
3982 * Some hardware has a limited channel list for
3983 * scanning, and it is pretty much nonsensical
3984 * to scan for a channel twice, so disallow that
3985 * and don't require drivers to check that the
3986 * channel list they get isn't longer than what
3987 * they can scan, as long as they can scan all
3988 * the channels they registered at once.
3989 */
3990 nla_for_each_nested(attr2, freqs, tmp2)
3991 if (attr1 != attr2 &&
3992 nla_get_u32(attr1) == nla_get_u32(attr2))
3993 return 0;
3994 }
3995
3996 return n_channels;
3997}
3998
2a519311
JB		 3999static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4000{
4c476991
JB		 4001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4002 struct net_device *dev = info->user_ptr[1];
2a519311 4003 struct cfg80211_scan_request *request;
2a519311
JB		 4004 struct nlattr *attr;
4005 struct wiphy *wiphy;
83f5e2cf 4006 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4007 size_t ie_len;
2a519311 4008
f4a11bb0
JB		 4009 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4010 return -EINVAL;
4011
79c97e97 4012 wiphy = &rdev->wiphy;
2a519311 4013
4c476991
JB		 4014 if (!rdev->ops->scan)
4015 return -EOPNOTSUPP;
2a519311 4016
4c476991
JB		 4017 if (rdev->scan_req)
4018 return -EBUSY;
2a519311
JB		 4019
4020 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4021 n_channels = validate_scan_freqs(
4022 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4023 if (!n_channels)
4024 return -EINVAL;
2a519311 4025 } else {
34850ab2 4026 enum ieee80211_band band;
83f5e2cf
JB		 4027 n_channels = 0;
4028
2a519311
JB		 4029 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4030 if (wiphy->bands[band])
4031 n_channels += wiphy->bands[band]->n_channels;
4032 }
4033
4034 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4035 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4036 n_ssids++;
4037
4c476991
JB		 4038 if (n_ssids > wiphy->max_scan_ssids)
4039 return -EINVAL;
2a519311 4040
70692ad2
JM		 4041 if (info->attrs[NL80211_ATTR_IE])
4042 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4043 else
4044 ie_len = 0;
4045
4c476991
JB		 4046 if (ie_len > wiphy->max_scan_ie_len)
4047 return -EINVAL;
18a83659 4048
2a519311 4049 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4050 + sizeof(*request->ssids) * n_ssids
4051 + sizeof(*request->channels) * n_channels
70692ad2 4052 + ie_len, GFP_KERNEL);
4c476991
JB		 4053 if (!request)
4054 return -ENOMEM;
2a519311 4055
2a519311 4056 if (n_ssids)
5ba63533 4057 request->ssids = (void *)&request->channels[n_channels];
2a519311 4058 request->n_ssids = n_ssids;
70692ad2
JM		 4059 if (ie_len) {
4060 if (request->ssids)
4061 request->ie = (void *)(request->ssids + n_ssids);
4062 else
4063 request->ie = (void *)(request->channels + n_channels);
4064 }
2a519311 4065
584991dc 4066 i = 0;
2a519311
JB		 4067 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4068 /* user specified, bail out if channel not found */
2a519311 4069 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4070 struct ieee80211_channel *chan;
4071
4072 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4073
4074 if (!chan) {
2a519311
JB		 4075 err = -EINVAL;
4076 goto out_free;
4077 }
584991dc
JB		 4078
4079 /* ignore disabled channels */
4080 if (chan->flags & IEEE80211_CHAN_DISABLED)
4081 continue;
4082
4083 request->channels[i] = chan;
2a519311
JB		 4084 i++;
4085 }
4086 } else {
34850ab2
JB		 4087 enum ieee80211_band band;
4088
2a519311 4089 /* all channels */
2a519311
JB		 4090 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4091 int j;
4092 if (!wiphy->bands[band])
4093 continue;
4094 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4095 struct ieee80211_channel *chan;
4096
4097 chan = &wiphy->bands[band]->channels[j];
4098
4099 if (chan->flags & IEEE80211_CHAN_DISABLED)
4100 continue;
4101
4102 request->channels[i] = chan;
2a519311
JB		 4103 i++;
4104 }
4105 }
4106 }
4107
584991dc
JB		 4108 if (!i) {
4109 err = -EINVAL;
4110 goto out_free;
4111 }
4112
4113 request->n_channels = i;
4114
2a519311
JB		 4115 i = 0;
4116 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4117 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4118 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4119 err = -EINVAL;
4120 goto out_free;
4121 }
57a27e1d 4122 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4123 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4124 i++;
4125 }
4126 }
4127
70692ad2
JM		 4128 if (info->attrs[NL80211_ATTR_IE]) {
4129 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4130 memcpy((void *)request->ie,
4131 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4132 request->ie_len);
4133 }
4134
34850ab2 4135 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4136 if (wiphy->bands[i])
4137 request->rates[i] =
4138 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4139
4140 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4141 nla_for_each_nested(attr,
4142 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4143 tmp) {
4144 enum ieee80211_band band = nla_type(attr);
4145
84404623 4146 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4147 err = -EINVAL;
4148 goto out_free;
4149 }
4150 err = ieee80211_get_ratemask(wiphy->bands[band],
4151 nla_data(attr),
4152 nla_len(attr),
4153 &request->rates[band]);
4154 if (err)
4155 goto out_free;
4156 }
4157 }
4158
e9f935e3
RM		 4159 request->no_cck =
4160 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4161
463d0183 4162 request->dev = dev;
79c97e97 4163 request->wiphy = &rdev->wiphy;
2a519311 4164
79c97e97
JB		 4165 rdev->scan_req = request;
4166 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 4167
463d0183 4168 if (!err) {
79c97e97 4169 nl80211_send_scan_start(rdev, dev);
463d0183 4170 dev_hold(dev);
4c476991 4171 } else {
2a519311 4172 out_free:
79c97e97 4173 rdev->scan_req = NULL;
2a519311
JB		 4174 kfree(request);
4175 }
3b85875a 4176
2a519311
JB		 4177 return err;
4178}
4179
807f8a8c
LC		 4180static int nl80211_start_sched_scan(struct sk_buff *skb,
4181 struct genl_info *info)
4182{
4183 struct cfg80211_sched_scan_request *request;
4184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4185 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4186 struct nlattr *attr;
4187 struct wiphy *wiphy;
a1f1c21c 4188 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4189 u32 interval;
807f8a8c
LC		 4190 enum ieee80211_band band;
4191 size_t ie_len;
a1f1c21c 4192 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4193
4194 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4195 !rdev->ops->sched_scan_start)
4196 return -EOPNOTSUPP;
4197
4198 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4199 return -EINVAL;
4200
bbe6ad6d
LC		 4201 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4202 return -EINVAL;
4203
4204 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4205 if (interval == 0)
4206 return -EINVAL;
4207
807f8a8c
LC		 4208 wiphy = &rdev->wiphy;
4209
4210 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4211 n_channels = validate_scan_freqs(
4212 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4213 if (!n_channels)
4214 return -EINVAL;
4215 } else {
4216 n_channels = 0;
4217
4218 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4219 if (wiphy->bands[band])
4220 n_channels += wiphy->bands[band]->n_channels;
4221 }
4222
4223 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4224 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4225 tmp)
4226 n_ssids++;
4227
93b6aa69 4228 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4229 return -EINVAL;
4230
a1f1c21c
LC		 4231 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4232 nla_for_each_nested(attr,
4233 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4234 tmp)
4235 n_match_sets++;
4236
4237 if (n_match_sets > wiphy->max_match_sets)
4238 return -EINVAL;
4239
807f8a8c
LC		 4240 if (info->attrs[NL80211_ATTR_IE])
4241 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4242 else
4243 ie_len = 0;
4244
5a865bad 4245 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4246 return -EINVAL;
4247
c10841ca
LC		 4248 mutex_lock(&rdev->sched_scan_mtx);
4249
4250 if (rdev->sched_scan_req) {
4251 err = -EINPROGRESS;
4252 goto out;
4253 }
4254
807f8a8c 4255 request = kzalloc(sizeof(*request)
a2cd43c5 4256 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4257 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4258 + sizeof(*request->channels) * n_channels
807f8a8c 4259 + ie_len, GFP_KERNEL);
c10841ca
LC		 4260 if (!request) {
4261 err = -ENOMEM;
4262 goto out;
4263 }
807f8a8c
LC		 4264
4265 if (n_ssids)
4266 request->ssids = (void *)&request->channels[n_channels];
4267 request->n_ssids = n_ssids;
4268 if (ie_len) {
4269 if (request->ssids)
4270 request->ie = (void *)(request->ssids + n_ssids);
4271 else
4272 request->ie = (void *)(request->channels + n_channels);
4273 }
4274
a1f1c21c
LC		 4275 if (n_match_sets) {
4276 if (request->ie)
4277 request->match_sets = (void *)(request->ie + ie_len);
4278 else if (request->ssids)
4279 request->match_sets =
4280 (void *)(request->ssids + n_ssids);
4281 else
4282 request->match_sets =
4283 (void *)(request->channels + n_channels);
4284 }
4285 request->n_match_sets = n_match_sets;
4286
807f8a8c
LC		 4287 i = 0;
4288 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4289 /* user specified, bail out if channel not found */
4290 nla_for_each_nested(attr,
4291 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4292 tmp) {
4293 struct ieee80211_channel *chan;
4294
4295 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4296
4297 if (!chan) {
4298 err = -EINVAL;
4299 goto out_free;
4300 }
4301
4302 /* ignore disabled channels */
4303 if (chan->flags & IEEE80211_CHAN_DISABLED)
4304 continue;
4305
4306 request->channels[i] = chan;
4307 i++;
4308 }
4309 } else {
4310 /* all channels */
4311 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4312 int j;
4313 if (!wiphy->bands[band])
4314 continue;
4315 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4316 struct ieee80211_channel *chan;
4317
4318 chan = &wiphy->bands[band]->channels[j];
4319
4320 if (chan->flags & IEEE80211_CHAN_DISABLED)
4321 continue;
4322
4323 request->channels[i] = chan;
4324 i++;
4325 }
4326 }
4327 }
4328
4329 if (!i) {
4330 err = -EINVAL;
4331 goto out_free;
4332 }
4333
4334 request->n_channels = i;
4335
4336 i = 0;
4337 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4338 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4339 tmp) {
57a27e1d 4340 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4341 err = -EINVAL;
4342 goto out_free;
4343 }
57a27e1d 4344 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4345 memcpy(request->ssids[i].ssid, nla_data(attr),
4346 nla_len(attr));
807f8a8c
LC		 4347 i++;
4348 }
4349 }
4350
a1f1c21c
LC		 4351 i = 0;
4352 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4353 nla_for_each_nested(attr,
4354 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4355 tmp) {
4356 struct nlattr *ssid;
4357
4358 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4359 nla_data(attr), nla_len(attr),
4360 nl80211_match_policy);
4a4ab0d7 4361 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4362 if (ssid) {
4363 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4364 err = -EINVAL;
4365 goto out_free;
4366 }
4367 memcpy(request->match_sets[i].ssid.ssid,
4368 nla_data(ssid), nla_len(ssid));
4369 request->match_sets[i].ssid.ssid_len =
4370 nla_len(ssid);
4371 }
4372 i++;
4373 }
4374 }
4375
807f8a8c
LC		 4376 if (info->attrs[NL80211_ATTR_IE]) {
4377 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4378 memcpy((void *)request->ie,
4379 nla_data(info->attrs[NL80211_ATTR_IE]),
4380 request->ie_len);
4381 }
4382
4383 request->dev = dev;
4384 request->wiphy = &rdev->wiphy;
bbe6ad6d 4385 request->interval = interval;
807f8a8c
LC		 4386
4387 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4388 if (!err) {
4389 rdev->sched_scan_req = request;
4390 nl80211_send_sched_scan(rdev, dev,
4391 NL80211_CMD_START_SCHED_SCAN);
4392 goto out;
4393 }
4394
4395out_free:
4396 kfree(request);
4397out:
c10841ca 4398 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4399 return err;
4400}
4401
4402static int nl80211_stop_sched_scan(struct sk_buff *skb,
4403 struct genl_info *info)
4404{
4405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4406 int err;
807f8a8c
LC		 4407
4408 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4409 !rdev->ops->sched_scan_stop)
4410 return -EOPNOTSUPP;
4411
c10841ca
LC		 4412 mutex_lock(&rdev->sched_scan_mtx);
4413 err = __cfg80211_stop_sched_scan(rdev, false);
4414 mutex_unlock(&rdev->sched_scan_mtx);
4415
4416 return err;
807f8a8c
LC		 4417}
4418
9720bb3a
JB		 4419static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4420 u32 seq, int flags,
2a519311 4421 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4422 struct wireless_dev *wdev,
4423 struct cfg80211_internal_bss *intbss)
2a519311 4424{
48ab905d 4425 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4426 void *hdr;
4427 struct nlattr *bss;
48ab905d
JB		 4428
4429 ASSERT_WDEV_LOCK(wdev);
2a519311 4430
9720bb3a 4431 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4432 NL80211_CMD_NEW_SCAN_RESULTS);
4433 if (!hdr)
4434 return -1;
4435
9720bb3a
JB		 4436 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4437
9360ffd1
DM		 4438 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4439 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4440 goto nla_put_failure;
2a519311
JB		 4441
4442 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4443 if (!bss)
4444 goto nla_put_failure;
9360ffd1
DM		 4445 if ((!is_zero_ether_addr(res->bssid) &&
4446 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4447 (res->information_elements && res->len_information_elements &&
4448 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4449 res->len_information_elements,
4450 res->information_elements)) ||
4451 (res->beacon_ies && res->len_beacon_ies &&
4452 res->beacon_ies != res->information_elements &&
4453 nla_put(msg, NL80211_BSS_BEACON_IES,
4454 res->len_beacon_ies, res->beacon_ies)))
4455 goto nla_put_failure;
4456 if (res->tsf &&
4457 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4458 goto nla_put_failure;
4459 if (res->beacon_interval &&
4460 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4461 goto nla_put_failure;
4462 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4463 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4464 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4465 jiffies_to_msecs(jiffies - intbss->ts)))
4466 goto nla_put_failure;
2a519311 4467
77965c97 4468 switch (rdev->wiphy.signal_type) {
2a519311 4469 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4470 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4471 goto nla_put_failure;
2a519311
JB		 4472 break;
4473 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4474 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4475 goto nla_put_failure;
2a519311
JB		 4476 break;
4477 default:
4478 break;
4479 }
4480
48ab905d 4481 switch (wdev->iftype) {
074ac8df 4482 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4483 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4484 if (intbss == wdev->current_bss &&
4485 nla_put_u32(msg, NL80211_BSS_STATUS,
4486 NL80211_BSS_STATUS_ASSOCIATED))
4487 goto nla_put_failure;
48ab905d
JB		 4488 break;
4489 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4490 if (intbss == wdev->current_bss &&
4491 nla_put_u32(msg, NL80211_BSS_STATUS,
4492 NL80211_BSS_STATUS_IBSS_JOINED))
4493 goto nla_put_failure;
48ab905d
JB		 4494 break;
4495 default:
4496 break;
4497 }
4498
2a519311
JB		 4499 nla_nest_end(msg, bss);
4500
4501 return genlmsg_end(msg, hdr);
4502
4503 nla_put_failure:
4504 genlmsg_cancel(msg, hdr);
4505 return -EMSGSIZE;
4506}
4507
4508static int nl80211_dump_scan(struct sk_buff *skb,
4509 struct netlink_callback *cb)
4510{
48ab905d
JB		 4511 struct cfg80211_registered_device *rdev;
4512 struct net_device *dev;
2a519311 4513 struct cfg80211_internal_bss *scan;
48ab905d 4514 struct wireless_dev *wdev;
2a519311
JB		 4515 int start = cb->args[1], idx = 0;
4516 int err;
4517
67748893
JB		 4518 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4519 if (err)
4520 return err;
2a519311 4521
48ab905d 4522 wdev = dev->ieee80211_ptr;
2a519311 4523
48ab905d
JB		 4524 wdev_lock(wdev);
4525 spin_lock_bh(&rdev->bss_lock);
4526 cfg80211_bss_expire(rdev);
4527
9720bb3a
JB		 4528 cb->seq = rdev->bss_generation;
4529
48ab905d 4530 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4531 if (++idx <= start)
4532 continue;
9720bb3a 4533 if (nl80211_send_bss(skb, cb,
2a519311 4534 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4535 rdev, wdev, scan) < 0) {
2a519311 4536 idx--;
67748893 4537 break;
2a519311
JB		 4538 }
4539 }
4540
48ab905d
JB		 4541 spin_unlock_bh(&rdev->bss_lock);
4542 wdev_unlock(wdev);
2a519311
JB		 4543
4544 cb->args[1] = idx;
67748893 4545 nl80211_finish_netdev_dump(rdev);
2a519311 4546
67748893 4547 return skb->len;
2a519311
JB		 4548}
4549
61fa713c
HS		 4550static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4551 int flags, struct net_device *dev,
4552 struct survey_info *survey)
4553{
4554 void *hdr;
4555 struct nlattr *infoattr;
4556
61fa713c
HS		 4557 hdr = nl80211hdr_put(msg, pid, seq, flags,
4558 NL80211_CMD_NEW_SURVEY_RESULTS);
4559 if (!hdr)
4560 return -ENOMEM;
4561
9360ffd1
DM		 4562 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4563 goto nla_put_failure;
61fa713c
HS		 4564
4565 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4566 if (!infoattr)
4567 goto nla_put_failure;
4568
9360ffd1
DM		 4569 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4570 survey->channel->center_freq))
4571 goto nla_put_failure;
4572
4573 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4574 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4575 goto nla_put_failure;
4576 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4577 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4578 goto nla_put_failure;
4579 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4580 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4581 survey->channel_time))
4582 goto nla_put_failure;
4583 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4584 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4585 survey->channel_time_busy))
4586 goto nla_put_failure;
4587 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4588 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4589 survey->channel_time_ext_busy))
4590 goto nla_put_failure;
4591 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4592 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4593 survey->channel_time_rx))
4594 goto nla_put_failure;
4595 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4596 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4597 survey->channel_time_tx))
4598 goto nla_put_failure;
61fa713c
HS		 4599
4600 nla_nest_end(msg, infoattr);
4601
4602 return genlmsg_end(msg, hdr);
4603
4604 nla_put_failure:
4605 genlmsg_cancel(msg, hdr);
4606 return -EMSGSIZE;
4607}
4608
4609static int nl80211_dump_survey(struct sk_buff *skb,
4610 struct netlink_callback *cb)
4611{
4612 struct survey_info survey;
4613 struct cfg80211_registered_device *dev;
4614 struct net_device *netdev;
61fa713c
HS		 4615 int survey_idx = cb->args[1];
4616 int res;
4617
67748893
JB		 4618 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4619 if (res)
4620 return res;
61fa713c
HS		 4621
4622 if (!dev->ops->dump_survey) {
4623 res = -EOPNOTSUPP;
4624 goto out_err;
4625 }
4626
4627 while (1) {
180cdc79
LR		 4628 struct ieee80211_channel *chan;
4629
61fa713c
HS		 4630 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4631 &survey);
4632 if (res == -ENOENT)
4633 break;
4634 if (res)
4635 goto out_err;
4636
180cdc79
LR		 4637 /* Survey without a channel doesn't make sense */
4638 if (!survey.channel) {
4639 res = -EINVAL;
4640 goto out;
4641 }
4642
4643 chan = ieee80211_get_channel(&dev->wiphy,
4644 survey.channel->center_freq);
4645 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4646 survey_idx++;
4647 continue;
4648 }
4649
61fa713c
HS		 4650 if (nl80211_send_survey(skb,
4651 NETLINK_CB(cb->skb).pid,
4652 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4653 netdev,
4654 &survey) < 0)
4655 goto out;
4656 survey_idx++;
4657 }
4658
4659 out:
4660 cb->args[1] = survey_idx;
4661 res = skb->len;
4662 out_err:
67748893 4663 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4664 return res;
4665}
4666
255e737e
JM		 4667static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4668{
b23aa676
SO		 4669 return auth_type <= NL80211_AUTHTYPE_MAX;
4670}
4671
4672static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4673{
4674 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4675 NL80211_WPA_VERSION_2));
4676}
4677
636a5d36
JM		 4678static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4679{
4c476991
JB		 4680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4681 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4682 struct ieee80211_channel *chan;
4683 const u8 *bssid, *ssid, *ie = NULL;
4684 int err, ssid_len, ie_len = 0;
4685 enum nl80211_auth_type auth_type;
fffd0934 4686 struct key_parse key;
d5cdfacb 4687 bool local_state_change;
636a5d36 4688
f4a11bb0
JB		 4689 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4690 return -EINVAL;
4691
4692 if (!info->attrs[NL80211_ATTR_MAC])
4693 return -EINVAL;
4694
1778092e
JM		 4695 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4696 return -EINVAL;
4697
19957bb3
JB		 4698 if (!info->attrs[NL80211_ATTR_SSID])
4699 return -EINVAL;
4700
4701 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4702 return -EINVAL;
4703
fffd0934
JB		 4704 err = nl80211_parse_key(info, &key);
4705 if (err)
4706 return err;
4707
4708 if (key.idx >= 0) {
e31b8213
JB		 4709 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4710 return -EINVAL;
fffd0934
JB		 4711 if (!key.p.key || !key.p.key_len)
4712 return -EINVAL;
4713 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4714 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4715 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4716 key.p.key_len != WLAN_KEY_LEN_WEP104))
4717 return -EINVAL;
4718 if (key.idx > 4)
4719 return -EINVAL;
4720 } else {
4721 key.p.key_len = 0;
4722 key.p.key = NULL;
4723 }
4724
afea0b7a
JB		 4725 if (key.idx >= 0) {
4726 int i;
4727 bool ok = false;
4728 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4729 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4730 ok = true;
4731 break;
4732 }
4733 }
4c476991
JB		 4734 if (!ok)
4735 return -EINVAL;
afea0b7a
JB		 4736 }
4737
4c476991
JB		 4738 if (!rdev->ops->auth)
4739 return -EOPNOTSUPP;
636a5d36 4740
074ac8df 4741 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4742 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4743 return -EOPNOTSUPP;
eec60b03 4744
19957bb3 4745 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4746 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4747 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4748 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4749 return -EINVAL;
636a5d36 4750
19957bb3
JB		 4751 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4752 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4753
4754 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4755 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4756 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4757 }
4758
19957bb3 4759 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4760 if (!nl80211_valid_auth_type(auth_type))
4761 return -EINVAL;
636a5d36 4762
d5cdfacb
JM		 4763 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4764
95de817b
JB		 4765 /*
4766 * Since we no longer track auth state, ignore
4767 * requests to only change local state.
4768 */
4769 if (local_state_change)
4770 return 0;
4771
4c476991
JB		 4772 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4773 ssid, ssid_len, ie, ie_len,
95de817b 4774 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4775}
4776
c0692b8f
JB		 4777static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4778 struct genl_info *info,
3dc27d25
JB		 4779 struct cfg80211_crypto_settings *settings,
4780 int cipher_limit)
b23aa676 4781{
c0b2bbd8
JB		 4782 memset(settings, 0, sizeof(*settings));
4783
b23aa676
SO		 4784 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4785
c0692b8f
JB		 4786 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4787 u16 proto;
4788 proto = nla_get_u16(
4789 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4790 settings->control_port_ethertype = cpu_to_be16(proto);
4791 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4792 proto != ETH_P_PAE)
4793 return -EINVAL;
4794 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4795 settings->control_port_no_encrypt = true;
4796 } else
4797 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4798
b23aa676
SO		 4799 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4800 void *data;
4801 int len, i;
4802
4803 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4804 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4805 settings->n_ciphers_pairwise = len / sizeof(u32);
4806
4807 if (len % sizeof(u32))
4808 return -EINVAL;
4809
3dc27d25 4810 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4811 return -EINVAL;
4812
4813 memcpy(settings->ciphers_pairwise, data, len);
4814
4815 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4816 if (!cfg80211_supported_cipher_suite(
4817 &rdev->wiphy,
b23aa676
SO		 4818 settings->ciphers_pairwise[i]))
4819 return -EINVAL;
4820 }
4821
4822 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4823 settings->cipher_group =
4824 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4825 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4826 settings->cipher_group))
b23aa676
SO		 4827 return -EINVAL;
4828 }
4829
4830 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4831 settings->wpa_versions =
4832 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4833 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4834 return -EINVAL;
4835 }
4836
4837 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4838 void *data;
6d30240e 4839 int len;
b23aa676
SO		 4840
4841 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4842 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4843 settings->n_akm_suites = len / sizeof(u32);
4844
4845 if (len % sizeof(u32))
4846 return -EINVAL;
4847
1b9ca027
JM		 4848 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4849 return -EINVAL;
4850
b23aa676 4851 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4852 }
4853
4854 return 0;
4855}
4856
636a5d36
JM		 4857static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4858{
4c476991
JB		 4859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4860 struct net_device *dev = info->user_ptr[1];
19957bb3 4861 struct cfg80211_crypto_settings crypto;
f444de05 4862 struct ieee80211_channel *chan;
3e5d7649 4863 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4864 int err, ssid_len, ie_len = 0;
4865 bool use_mfp = false;
7e7c8926
BG		 4866 u32 flags = 0;
4867 struct ieee80211_ht_cap *ht_capa = NULL;
4868 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4869
f4a11bb0
JB		 4870 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4871 return -EINVAL;
4872
4873 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4874 !info->attrs[NL80211_ATTR_SSID] ||
4875 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4876 return -EINVAL;
4877
4c476991
JB		 4878 if (!rdev->ops->assoc)
4879 return -EOPNOTSUPP;
636a5d36 4880
074ac8df 4881 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4882 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4883 return -EOPNOTSUPP;
eec60b03 4884
19957bb3 4885 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4886
19957bb3
JB		 4887 chan = ieee80211_get_channel(&rdev->wiphy,
4888 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4889 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4890 return -EINVAL;
636a5d36 4891
19957bb3
JB		 4892 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4893 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4894
4895 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4896 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4897 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4898 }
4899
dc6382ce 4900 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4901 enum nl80211_mfp mfp =
dc6382ce 4902 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4903 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4904 use_mfp = true;
4c476991
JB		 4905 else if (mfp != NL80211_MFP_NO)
4906 return -EINVAL;
dc6382ce
JM		 4907 }
4908
3e5d7649
JB		 4909 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4910 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4911
7e7c8926
BG		 4912 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4913 flags |= ASSOC_REQ_DISABLE_HT;
4914
4915 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4916 ht_capa_mask =
4917 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4918
4919 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4920 if (!ht_capa_mask)
4921 return -EINVAL;
4922 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4923 }
4924
c0692b8f 4925 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4926 if (!err)
3e5d7649
JB		 4927 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4928 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4929 &crypto, flags, ht_capa,
4930 ht_capa_mask);
636a5d36 4931
636a5d36
JM		 4932 return err;
4933}
4934
4935static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4936{
4c476991
JB		 4937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4938 struct net_device *dev = info->user_ptr[1];
19957bb3 4939 const u8 *ie = NULL, *bssid;
4c476991 4940 int ie_len = 0;
19957bb3 4941 u16 reason_code;
d5cdfacb 4942 bool local_state_change;
636a5d36 4943
f4a11bb0
JB		 4944 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4945 return -EINVAL;
4946
4947 if (!info->attrs[NL80211_ATTR_MAC])
4948 return -EINVAL;
4949
4950 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4951 return -EINVAL;
4952
4c476991
JB		 4953 if (!rdev->ops->deauth)
4954 return -EOPNOTSUPP;
636a5d36 4955
074ac8df 4956 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4957 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4958 return -EOPNOTSUPP;
eec60b03 4959
19957bb3 4960 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4961
19957bb3
JB		 4962 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4963 if (reason_code == 0) {
f4a11bb0 4964 /* Reason Code 0 is reserved */
4c476991 4965 return -EINVAL;
255e737e 4966 }
636a5d36
JM		 4967
4968 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4969 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4970 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4971 }
4972
d5cdfacb
JM		 4973 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4974
4c476991
JB		 4975 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4976 local_state_change);
636a5d36
JM		 4977}
4978
4979static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4980{
4c476991
JB		 4981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4982 struct net_device *dev = info->user_ptr[1];
19957bb3 4983 const u8 *ie = NULL, *bssid;
4c476991 4984 int ie_len = 0;
19957bb3 4985 u16 reason_code;
d5cdfacb 4986 bool local_state_change;
636a5d36 4987
f4a11bb0
JB		 4988 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4989 return -EINVAL;
4990
4991 if (!info->attrs[NL80211_ATTR_MAC])
4992 return -EINVAL;
4993
4994 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4995 return -EINVAL;
4996
4c476991
JB		 4997 if (!rdev->ops->disassoc)
4998 return -EOPNOTSUPP;
636a5d36 4999
074ac8df 5000 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5001 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5002 return -EOPNOTSUPP;
eec60b03 5003
19957bb3 5004 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5005
19957bb3
JB		 5006 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5007 if (reason_code == 0) {
f4a11bb0 5008 /* Reason Code 0 is reserved */
4c476991 5009 return -EINVAL;
255e737e 5010 }
636a5d36
JM		 5011
5012 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5013 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5014 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5015 }
5016
d5cdfacb
JM		 5017 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5018
4c476991
JB		 5019 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5020 local_state_change);
636a5d36
JM		 5021}
5022
dd5b4cc7
FF		 5023static bool
5024nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5025 int mcast_rate[IEEE80211_NUM_BANDS],
5026 int rateval)
5027{
5028 struct wiphy *wiphy = &rdev->wiphy;
5029 bool found = false;
5030 int band, i;
5031
5032 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5033 struct ieee80211_supported_band *sband;
5034
5035 sband = wiphy->bands[band];
5036 if (!sband)
5037 continue;
5038
5039 for (i = 0; i < sband->n_bitrates; i++) {
5040 if (sband->bitrates[i].bitrate == rateval) {
5041 mcast_rate[band] = i + 1;
5042 found = true;
5043 break;
5044 }
5045 }
5046 }
5047
5048 return found;
5049}
5050
04a773ad
JB		 5051static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5052{
4c476991
JB		 5053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5054 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5055 struct cfg80211_ibss_params ibss;
5056 struct wiphy *wiphy;
fffd0934 5057 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5058 int err;
5059
8e30bc55
JB		 5060 memset(&ibss, 0, sizeof(ibss));
5061
04a773ad
JB		 5062 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5063 return -EINVAL;
5064
5065 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5066 !info->attrs[NL80211_ATTR_SSID] ||
5067 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5068 return -EINVAL;
5069
8e30bc55
JB		 5070 ibss.beacon_interval = 100;
5071
5072 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5073 ibss.beacon_interval =
5074 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5075 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5076 return -EINVAL;
5077 }
5078
4c476991
JB		 5079 if (!rdev->ops->join_ibss)
5080 return -EOPNOTSUPP;
04a773ad 5081
4c476991
JB		 5082 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5083 return -EOPNOTSUPP;
04a773ad 5084
79c97e97 5085 wiphy = &rdev->wiphy;
04a773ad 5086
39193498 5087 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5088 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5089
5090 if (!is_valid_ether_addr(ibss.bssid))
5091 return -EINVAL;
5092 }
04a773ad
JB		 5093 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5094 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5095
5096 if (info->attrs[NL80211_ATTR_IE]) {
5097 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5098 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5099 }
5100
54858ee5
AS		 5101 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5102 enum nl80211_channel_type channel_type;
5103
cd6c6598 5104 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5105 return -EINVAL;
5106
5107 if (channel_type != NL80211_CHAN_NO_HT &&
5108 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5109 return -EINVAL;
5110
5111 ibss.channel_type = channel_type;
5112 } else {
5113 ibss.channel_type = NL80211_CHAN_NO_HT;
5114 }
5115
5116 ibss.channel = rdev_freq_to_chan(rdev,
5117 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5118 ibss.channel_type);
04a773ad
JB		 5119 if (!ibss.channel ||
5120 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5121 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5122 return -EINVAL;
04a773ad 5123
54858ee5
AS		 5124 /* Both channels should be able to initiate communication */
5125 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5126 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5127 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5128 ibss.channel_type))
5129 return -EINVAL;
5130
04a773ad 5131 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5132 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5133
fbd2c8dc
TP		 5134 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5135 u8 *rates =
5136 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5137 int n_rates =
5138 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5139 struct ieee80211_supported_band *sband =
5140 wiphy->bands[ibss.channel->band];
fbd2c8dc 5141
34850ab2
JB		 5142 err = ieee80211_get_ratemask(sband, rates, n_rates,
5143 &ibss.basic_rates);
5144 if (err)
5145 return err;
fbd2c8dc 5146 }
dd5b4cc7
FF		 5147
5148 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5149 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5150 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5151 return -EINVAL;
fbd2c8dc 5152
4c476991
JB		 5153 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5154 connkeys = nl80211_parse_connkeys(rdev,
5155 info->attrs[NL80211_ATTR_KEYS]);
5156 if (IS_ERR(connkeys))
5157 return PTR_ERR(connkeys);
5158 }
04a773ad 5159
267335d6
AQ		 5160 ibss.control_port =
5161 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5162
4c476991 5163 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5164 if (err)
5165 kfree(connkeys);
04a773ad
JB		 5166 return err;
5167}
5168
5169static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5170{
4c476991
JB		 5171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5172 struct net_device *dev = info->user_ptr[1];
04a773ad 5173
4c476991
JB		 5174 if (!rdev->ops->leave_ibss)
5175 return -EOPNOTSUPP;
04a773ad 5176
4c476991
JB		 5177 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5178 return -EOPNOTSUPP;
04a773ad 5179
4c476991 5180 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5181}
5182
aff89a9b
JB		 5183#ifdef CONFIG_NL80211_TESTMODE
5184static struct genl_multicast_group nl80211_testmode_mcgrp = {
5185 .name = "testmode",
5186};
5187
5188static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5189{
4c476991 5190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5191 int err;
5192
5193 if (!info->attrs[NL80211_ATTR_TESTDATA])
5194 return -EINVAL;
5195
aff89a9b
JB		 5196 err = -EOPNOTSUPP;
5197 if (rdev->ops->testmode_cmd) {
5198 rdev->testmode_info = info;
5199 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5200 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5201 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5202 rdev->testmode_info = NULL;
5203 }
5204
aff89a9b
JB		 5205 return err;
5206}
5207
71063f0e
WYG		 5208static int nl80211_testmode_dump(struct sk_buff *skb,
5209 struct netlink_callback *cb)
5210{
00918d33 5211 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5212 int err;
5213 long phy_idx;
5214 void *data = NULL;
5215 int data_len = 0;
5216
5217 if (cb->args[0]) {
5218 /*
5219 * 0 is a valid index, but not valid for args[0],
5220 * so we need to offset by 1.
5221 */
5222 phy_idx = cb->args[0] - 1;
5223 } else {
5224 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5225 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5226 nl80211_policy);
5227 if (err)
5228 return err;
00918d33
JB		 5229 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
5230 phy_idx = nla_get_u32(
5231 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
5232 } else {
5233 struct net_device *netdev;
5234
5235 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
5236 nl80211_fam.attrbuf,
5237 &rdev, &netdev);
5238 if (err)
5239 return err;
5240 dev_put(netdev);
5241 phy_idx = rdev->wiphy_idx;
5242 cfg80211_unlock_rdev(rdev);
5243 }
71063f0e
WYG		 5244 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5245 cb->args[1] =
5246 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5247 }
5248
5249 if (cb->args[1]) {
5250 data = nla_data((void *)cb->args[1]);
5251 data_len = nla_len((void *)cb->args[1]);
5252 }
5253
5254 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5255 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5256 if (!rdev) {
71063f0e
WYG		 5257 mutex_unlock(&cfg80211_mutex);
5258 return -ENOENT;
5259 }
00918d33 5260 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5261 mutex_unlock(&cfg80211_mutex);
5262
00918d33 5263 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5264 err = -EOPNOTSUPP;
5265 goto out_err;
5266 }
5267
5268 while (1) {
5269 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5270 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5271 NL80211_CMD_TESTMODE);
5272 struct nlattr *tmdata;
5273
9360ffd1 5274 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5275 genlmsg_cancel(skb, hdr);
5276 break;
5277 }
5278
5279 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5280 if (!tmdata) {
5281 genlmsg_cancel(skb, hdr);
5282 break;
5283 }
00918d33
JB		 5284 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5285 data, data_len);
71063f0e
WYG		 5286 nla_nest_end(skb, tmdata);
5287
5288 if (err == -ENOBUFS || err == -ENOENT) {
5289 genlmsg_cancel(skb, hdr);
5290 break;
5291 } else if (err) {
5292 genlmsg_cancel(skb, hdr);
5293 goto out_err;
5294 }
5295
5296 genlmsg_end(skb, hdr);
5297 }
5298
5299 err = skb->len;
5300 /* see above */
5301 cb->args[0] = phy_idx + 1;
5302 out_err:
00918d33 5303 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5304 return err;
5305}
5306
aff89a9b
JB		 5307static struct sk_buff *
5308__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5309 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5310{
5311 struct sk_buff *skb;
5312 void *hdr;
5313 struct nlattr *data;
5314
5315 skb = nlmsg_new(approxlen + 100, gfp);
5316 if (!skb)
5317 return NULL;
5318
5319 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5320 if (!hdr) {
5321 kfree_skb(skb);
5322 return NULL;
5323 }
5324
9360ffd1
DM		 5325 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5326 goto nla_put_failure;
aff89a9b
JB		 5327 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5328
5329 ((void **)skb->cb)[0] = rdev;
5330 ((void **)skb->cb)[1] = hdr;
5331 ((void **)skb->cb)[2] = data;
5332
5333 return skb;
5334
5335 nla_put_failure:
5336 kfree_skb(skb);
5337 return NULL;
5338}
5339
5340struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5341 int approxlen)
5342{
5343 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5344
5345 if (WARN_ON(!rdev->testmode_info))
5346 return NULL;
5347
5348 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5349 rdev->testmode_info->snd_pid,
5350 rdev->testmode_info->snd_seq,
5351 GFP_KERNEL);
5352}
5353EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5354
5355int cfg80211_testmode_reply(struct sk_buff *skb)
5356{
5357 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5358 void *hdr = ((void **)skb->cb)[1];
5359 struct nlattr *data = ((void **)skb->cb)[2];
5360
5361 if (WARN_ON(!rdev->testmode_info)) {
5362 kfree_skb(skb);
5363 return -EINVAL;
5364 }
5365
5366 nla_nest_end(skb, data);
5367 genlmsg_end(skb, hdr);
5368 return genlmsg_reply(skb, rdev->testmode_info);
5369}
5370EXPORT_SYMBOL(cfg80211_testmode_reply);
5371
5372struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5373 int approxlen, gfp_t gfp)
5374{
5375 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5376
5377 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5378}
5379EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5380
5381void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5382{
5383 void *hdr = ((void **)skb->cb)[1];
5384 struct nlattr *data = ((void **)skb->cb)[2];
5385
5386 nla_nest_end(skb, data);
5387 genlmsg_end(skb, hdr);
5388 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5389}
5390EXPORT_SYMBOL(cfg80211_testmode_event);
5391#endif
5392
b23aa676
SO		 5393static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5394{
4c476991
JB		 5395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5396 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5397 struct cfg80211_connect_params connect;
5398 struct wiphy *wiphy;
fffd0934 5399 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5400 int err;
5401
5402 memset(&connect, 0, sizeof(connect));
5403
5404 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5405 return -EINVAL;
5406
5407 if (!info->attrs[NL80211_ATTR_SSID] ||
5408 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5409 return -EINVAL;
5410
5411 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5412 connect.auth_type =
5413 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5414 if (!nl80211_valid_auth_type(connect.auth_type))
5415 return -EINVAL;
5416 } else
5417 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5418
5419 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5420
c0692b8f 5421 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5422 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5423 if (err)
5424 return err;
b23aa676 5425
074ac8df 5426 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5427 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5428 return -EOPNOTSUPP;
b23aa676 5429
79c97e97 5430 wiphy = &rdev->wiphy;
b23aa676 5431
4486ea98
BS		 5432 connect.bg_scan_period = -1;
5433 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5434 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5435 connect.bg_scan_period =
5436 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5437 }
5438
b23aa676
SO		 5439 if (info->attrs[NL80211_ATTR_MAC])
5440 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5441 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5442 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5443
5444 if (info->attrs[NL80211_ATTR_IE]) {
5445 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5446 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5447 }
5448
5449 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5450 connect.channel =
5451 ieee80211_get_channel(wiphy,
5452 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5453 if (!connect.channel ||
4c476991
JB		 5454 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5455 return -EINVAL;
b23aa676
SO		 5456 }
5457
fffd0934
JB		 5458 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5459 connkeys = nl80211_parse_connkeys(rdev,
5460 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5461 if (IS_ERR(connkeys))
5462 return PTR_ERR(connkeys);
fffd0934
JB		 5463 }
5464
7e7c8926
BG		 5465 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5466 connect.flags |= ASSOC_REQ_DISABLE_HT;
5467
5468 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5469 memcpy(&connect.ht_capa_mask,
5470 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5471 sizeof(connect.ht_capa_mask));
5472
5473 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5474 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5475 return -EINVAL;
5476 memcpy(&connect.ht_capa,
5477 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5478 sizeof(connect.ht_capa));
5479 }
5480
fffd0934 5481 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5482 if (err)
5483 kfree(connkeys);
b23aa676
SO		 5484 return err;
5485}
5486
5487static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5488{
4c476991
JB		 5489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5490 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5491 u16 reason;
5492
5493 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5494 reason = WLAN_REASON_DEAUTH_LEAVING;
5495 else
5496 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5497
5498 if (reason == 0)
5499 return -EINVAL;
5500
074ac8df 5501 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5502 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5503 return -EOPNOTSUPP;
b23aa676 5504
4c476991 5505 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5506}
5507
463d0183
JB		 5508static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5509{
4c476991 5510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5511 struct net *net;
5512 int err;
5513 u32 pid;
5514
5515 if (!info->attrs[NL80211_ATTR_PID])
5516 return -EINVAL;
5517
5518 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5519
463d0183 5520 net = get_net_ns_by_pid(pid);
4c476991
JB		 5521 if (IS_ERR(net))
5522 return PTR_ERR(net);
463d0183
JB		 5523
5524 err = 0;
5525
5526 /* check if anything to do */
4c476991
JB		 5527 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5528 err = cfg80211_switch_netns(rdev, net);
463d0183 5529
463d0183 5530 put_net(net);
463d0183
JB		 5531 return err;
5532}
5533
67fbb16b
SO		 5534static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5535{
4c476991 5536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5537 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5538 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5539 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5540 struct cfg80211_pmksa pmksa;
5541
5542 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5543
5544 if (!info->attrs[NL80211_ATTR_MAC])
5545 return -EINVAL;
5546
5547 if (!info->attrs[NL80211_ATTR_PMKID])
5548 return -EINVAL;
5549
67fbb16b
SO		 5550 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5551 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5552
074ac8df 5553 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5554 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5555 return -EOPNOTSUPP;
67fbb16b
SO		 5556
5557 switch (info->genlhdr->cmd) {
5558 case NL80211_CMD_SET_PMKSA:
5559 rdev_ops = rdev->ops->set_pmksa;
5560 break;
5561 case NL80211_CMD_DEL_PMKSA:
5562 rdev_ops = rdev->ops->del_pmksa;
5563 break;
5564 default:
5565 WARN_ON(1);
5566 break;
5567 }
5568
4c476991
JB		 5569 if (!rdev_ops)
5570 return -EOPNOTSUPP;
67fbb16b 5571
4c476991 5572 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5573}
5574
5575static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5576{
4c476991
JB		 5577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5578 struct net_device *dev = info->user_ptr[1];
67fbb16b 5579
074ac8df 5580 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5581 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5582 return -EOPNOTSUPP;
67fbb16b 5583
4c476991
JB		 5584 if (!rdev->ops->flush_pmksa)
5585 return -EOPNOTSUPP;
67fbb16b 5586
4c476991 5587 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5588}
5589
109086ce
AN		 5590static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5591{
5592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5593 struct net_device *dev = info->user_ptr[1];
5594 u8 action_code, dialog_token;
5595 u16 status_code;
5596 u8 *peer;
5597
5598 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5599 !rdev->ops->tdls_mgmt)
5600 return -EOPNOTSUPP;
5601
5602 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5603 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5604 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5605 !info->attrs[NL80211_ATTR_IE] ||
5606 !info->attrs[NL80211_ATTR_MAC])
5607 return -EINVAL;
5608
5609 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5610 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5611 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5612 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5613
5614 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5615 dialog_token, status_code,
5616 nla_data(info->attrs[NL80211_ATTR_IE]),
5617 nla_len(info->attrs[NL80211_ATTR_IE]));
5618}
5619
5620static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5621{
5622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5623 struct net_device *dev = info->user_ptr[1];
5624 enum nl80211_tdls_operation operation;
5625 u8 *peer;
5626
5627 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5628 !rdev->ops->tdls_oper)
5629 return -EOPNOTSUPP;
5630
5631 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5632 !info->attrs[NL80211_ATTR_MAC])
5633 return -EINVAL;
5634
5635 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5636 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5637
5638 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5639}
5640
9588bbd5
JM		 5641static int nl80211_remain_on_channel(struct sk_buff *skb,
5642 struct genl_info *info)
5643{
4c476991
JB		 5644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5645 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5646 struct ieee80211_channel *chan;
5647 struct sk_buff *msg;
5648 void *hdr;
5649 u64 cookie;
5650 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5651 u32 freq, duration;
5652 int err;
5653
5654 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5655 !info->attrs[NL80211_ATTR_DURATION])
5656 return -EINVAL;
5657
5658 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5659
ebf348fc
JB		 5660 if (!rdev->ops->remain_on_channel ||
5661 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5662 return -EOPNOTSUPP;
5663
9588bbd5 5664 /*
ebf348fc
JB		 5665 * We should be on that channel for at least a minimum amount of
5666 * time (10ms) but no longer than the driver supports.
9588bbd5 5667 */
ebf348fc 5668 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5669 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5670 return -EINVAL;
5671
cd6c6598
JB		 5672 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5673 !nl80211_valid_channel_type(info, &channel_type))
5674 return -EINVAL;
9588bbd5
JM		 5675
5676 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5677 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5678 if (chan == NULL)
5679 return -EINVAL;
9588bbd5
JM		 5680
5681 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5682 if (!msg)
5683 return -ENOMEM;
9588bbd5
JM		 5684
5685 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5686 NL80211_CMD_REMAIN_ON_CHANNEL);
5687
5688 if (IS_ERR(hdr)) {
5689 err = PTR_ERR(hdr);
5690 goto free_msg;
5691 }
5692
5693 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5694 channel_type, duration, &cookie);
5695
5696 if (err)
5697 goto free_msg;
5698
9360ffd1
DM		 5699 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5700 goto nla_put_failure;
9588bbd5
JM		 5701
5702 genlmsg_end(msg, hdr);
4c476991
JB		 5703
5704 return genlmsg_reply(msg, info);
9588bbd5
JM		 5705
5706 nla_put_failure:
5707 err = -ENOBUFS;
5708 free_msg:
5709 nlmsg_free(msg);
9588bbd5
JM		 5710 return err;
5711}
5712
5713static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5714 struct genl_info *info)
5715{
4c476991
JB		 5716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5717 struct net_device *dev = info->user_ptr[1];
9588bbd5 5718 u64 cookie;
9588bbd5
JM		 5719
5720 if (!info->attrs[NL80211_ATTR_COOKIE])
5721 return -EINVAL;
5722
4c476991
JB		 5723 if (!rdev->ops->cancel_remain_on_channel)
5724 return -EOPNOTSUPP;
9588bbd5 5725
9588bbd5
JM		 5726 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5727
4c476991 5728 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5729}
5730
13ae75b1
JM		 5731static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5732 u8 *rates, u8 rates_len)
5733{
5734 u8 i;
5735 u32 mask = 0;
5736
5737 for (i = 0; i < rates_len; i++) {
5738 int rate = (rates[i] & 0x7f) * 5;
5739 int ridx;
5740 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5741 struct ieee80211_rate *srate =
5742 &sband->bitrates[ridx];
5743 if (rate == srate->bitrate) {
5744 mask |= 1 << ridx;
5745 break;
5746 }
5747 }
5748 if (ridx == sband->n_bitrates)
5749 return 0; /* rate not found */
5750 }
5751
5752 return mask;
5753}
5754
24db78c0
SW		 5755static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5756 u8 *rates, u8 rates_len,
5757 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5758{
5759 u8 i;
5760
5761 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5762
5763 for (i = 0; i < rates_len; i++) {
5764 int ridx, rbit;
5765
5766 ridx = rates[i] / 8;
5767 rbit = BIT(rates[i] % 8);
5768
5769 /* check validity */
910570b5 5770 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5771 return false;
5772
5773 /* check availability */
5774 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5775 mcs[ridx] |= rbit;
5776 else
5777 return false;
5778 }
5779
5780 return true;
5781}
5782
b54452b0 5783static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5784 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5785 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5786 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5787 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5788};
5789
5790static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5791 struct genl_info *info)
5792{
5793 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5795 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5796 int rem, i;
5797 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5798 struct nlattr *tx_rates;
5799 struct ieee80211_supported_band *sband;
5800
5801 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5802 return -EINVAL;
5803
4c476991
JB		 5804 if (!rdev->ops->set_bitrate_mask)
5805 return -EOPNOTSUPP;
13ae75b1
JM		 5806
5807 memset(&mask, 0, sizeof(mask));
5808 /* Default to all rates enabled */
5809 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5810 sband = rdev->wiphy.bands[i];
5811 mask.control[i].legacy =
5812 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5813 if (sband)
5814 memcpy(mask.control[i].mcs,
5815 sband->ht_cap.mcs.rx_mask,
5816 sizeof(mask.control[i].mcs));
5817 else
5818 memset(mask.control[i].mcs, 0,
5819 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5820 }
5821
5822 /*
5823 * The nested attribute uses enum nl80211_band as the index. This maps
5824 * directly to the enum ieee80211_band values used in cfg80211.
5825 */
24db78c0 5826 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5827 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5828 {
5829 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5830 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5831 return -EINVAL;
13ae75b1 5832 sband = rdev->wiphy.bands[band];
4c476991
JB		 5833 if (sband == NULL)
5834 return -EINVAL;
13ae75b1
JM		 5835 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5836 nla_len(tx_rates), nl80211_txattr_policy);
5837 if (tb[NL80211_TXRATE_LEGACY]) {
5838 mask.control[band].legacy = rateset_to_mask(
5839 sband,
5840 nla_data(tb[NL80211_TXRATE_LEGACY]),
5841 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 5842 if ((mask.control[band].legacy == 0) &&
5843 nla_len(tb[NL80211_TXRATE_LEGACY]))
5844 return -EINVAL;
24db78c0
SW		 5845 }
5846 if (tb[NL80211_TXRATE_MCS]) {
5847 if (!ht_rateset_to_mask(
5848 sband,
5849 nla_data(tb[NL80211_TXRATE_MCS]),
5850 nla_len(tb[NL80211_TXRATE_MCS]),
5851 mask.control[band].mcs))
5852 return -EINVAL;
5853 }
5854
5855 if (mask.control[band].legacy == 0) {
5856 /* don't allow empty legacy rates if HT
5857 * is not even supported. */
5858 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5859 return -EINVAL;
5860
5861 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5862 if (mask.control[band].mcs[i])
5863 break;
5864
5865 /* legacy and mcs rates may not be both empty */
5866 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5867 return -EINVAL;
13ae75b1
JM		 5868 }
5869 }
5870
4c476991 5871 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5872}
5873
2e161f78 5874static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5875{
4c476991
JB		 5876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5877 struct net_device *dev = info->user_ptr[1];
2e161f78 5878 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5879
5880 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5881 return -EINVAL;
5882
2e161f78
JB		 5883 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5884 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5885
9d38d85d 5886 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5887 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5888 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5889 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5890 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5891 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5892 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5893 return -EOPNOTSUPP;
026331c4
JM		 5894
5895 /* not much point in registering if we can't reply */
4c476991
JB		 5896 if (!rdev->ops->mgmt_tx)
5897 return -EOPNOTSUPP;
026331c4 5898
4c476991 5899 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5900 frame_type,
026331c4
JM		 5901 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5902 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5903}
5904
2e161f78 5905static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5906{
4c476991
JB		 5907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5908 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5909 struct ieee80211_channel *chan;
5910 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5911 bool channel_type_valid = false;
026331c4
JM		 5912 u32 freq;
5913 int err;
d64d373f 5914 void *hdr = NULL;
026331c4 5915 u64 cookie;
e247bd90 5916 struct sk_buff *msg = NULL;
f7ca38df 5917 unsigned int wait = 0;
e247bd90
JB		 5918 bool offchan, no_cck, dont_wait_for_ack;
5919
5920 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5921
5922 if (!info->attrs[NL80211_ATTR_FRAME] ||
5923 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5924 return -EINVAL;
5925
4c476991
JB		 5926 if (!rdev->ops->mgmt_tx)
5927 return -EOPNOTSUPP;
026331c4 5928
9d38d85d 5929 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5931 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5932 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5933 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5934 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5935 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5936 return -EOPNOTSUPP;
026331c4 5937
f7ca38df 5938 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5939 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5940 return -EINVAL;
5941 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 5942
5943 /*
5944 * We should wait on the channel for at least a minimum amount
5945 * of time (10ms) but no longer than the driver supports.
5946 */
5947 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5948 wait > rdev->wiphy.max_remain_on_channel_duration)
5949 return -EINVAL;
5950
f7ca38df
JB		 5951 }
5952
026331c4 5953 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 5954 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 5955 return -EINVAL;
252aa631 5956 channel_type_valid = true;
026331c4
JM		 5957 }
5958
f7ca38df
JB		 5959 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5960
7c4ef712
JB		 5961 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5962 return -EINVAL;
5963
e9f935e3
RM		 5964 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5965
026331c4
JM		 5966 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5967 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5968 if (chan == NULL)
5969 return -EINVAL;
026331c4 5970
e247bd90
JB		 5971 if (!dont_wait_for_ack) {
5972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5973 if (!msg)
5974 return -ENOMEM;
026331c4 5975
e247bd90
JB		 5976 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5977 NL80211_CMD_FRAME);
026331c4 5978
e247bd90
JB		 5979 if (IS_ERR(hdr)) {
5980 err = PTR_ERR(hdr);
5981 goto free_msg;
5982 }
026331c4 5983 }
e247bd90 5984
f7ca38df
JB		 5985 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5986 channel_type_valid, wait,
2e161f78
JB		 5987 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5988 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5989 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5990 if (err)
5991 goto free_msg;
5992
e247bd90 5993 if (msg) {
9360ffd1
DM		 5994 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5995 goto nla_put_failure;
026331c4 5996
e247bd90
JB		 5997 genlmsg_end(msg, hdr);
5998 return genlmsg_reply(msg, info);
5999 }
6000
6001 return 0;
026331c4
JM		 6002
6003 nla_put_failure:
6004 err = -ENOBUFS;
6005 free_msg:
6006 nlmsg_free(msg);
026331c4
JM		 6007 return err;
6008}
6009
f7ca38df
JB		 6010static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6011{
6012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6013 struct net_device *dev = info->user_ptr[1];
6014 u64 cookie;
6015
6016 if (!info->attrs[NL80211_ATTR_COOKIE])
6017 return -EINVAL;
6018
6019 if (!rdev->ops->mgmt_tx_cancel_wait)
6020 return -EOPNOTSUPP;
6021
6022 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6023 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6024 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6025 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6026 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6027 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6028 return -EOPNOTSUPP;
6029
6030 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6031
6032 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6033}
6034
ffb9eb3d
KV		 6035static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6036{
4c476991 6037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6038 struct wireless_dev *wdev;
4c476991 6039 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6040 u8 ps_state;
6041 bool state;
6042 int err;
6043
4c476991
JB		 6044 if (!info->attrs[NL80211_ATTR_PS_STATE])
6045 return -EINVAL;
ffb9eb3d
KV		 6046
6047 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6048
4c476991
JB		 6049 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6050 return -EINVAL;
ffb9eb3d
KV		 6051
6052 wdev = dev->ieee80211_ptr;
6053
4c476991
JB		 6054 if (!rdev->ops->set_power_mgmt)
6055 return -EOPNOTSUPP;
ffb9eb3d
KV		 6056
6057 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6058
6059 if (state == wdev->ps)
4c476991 6060 return 0;
ffb9eb3d 6061
4c476991
JB		 6062 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6063 wdev->ps_timeout);
6064 if (!err)
6065 wdev->ps = state;
ffb9eb3d
KV		 6066 return err;
6067}
6068
6069static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6070{
4c476991 6071 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6072 enum nl80211_ps_state ps_state;
6073 struct wireless_dev *wdev;
4c476991 6074 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6075 struct sk_buff *msg;
6076 void *hdr;
6077 int err;
6078
ffb9eb3d
KV		 6079 wdev = dev->ieee80211_ptr;
6080
4c476991
JB		 6081 if (!rdev->ops->set_power_mgmt)
6082 return -EOPNOTSUPP;
ffb9eb3d
KV		 6083
6084 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6085 if (!msg)
6086 return -ENOMEM;
ffb9eb3d
KV		 6087
6088 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6089 NL80211_CMD_GET_POWER_SAVE);
6090 if (!hdr) {
4c476991 6091 err = -ENOBUFS;
ffb9eb3d
KV		 6092 goto free_msg;
6093 }
6094
6095 if (wdev->ps)
6096 ps_state = NL80211_PS_ENABLED;
6097 else
6098 ps_state = NL80211_PS_DISABLED;
6099
9360ffd1
DM		 6100 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6101 goto nla_put_failure;
ffb9eb3d
KV		 6102
6103 genlmsg_end(msg, hdr);
4c476991 6104 return genlmsg_reply(msg, info);
ffb9eb3d 6105
4c476991 6106 nla_put_failure:
ffb9eb3d 6107 err = -ENOBUFS;
4c476991 6108 free_msg:
ffb9eb3d 6109 nlmsg_free(msg);
ffb9eb3d
KV		 6110 return err;
6111}
6112
d6dc1a38
JO		 6113static struct nla_policy
6114nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6115 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6116 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6117 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6118};
6119
6120static int nl80211_set_cqm_rssi(struct genl_info *info,
6121 s32 threshold, u32 hysteresis)
6122{
4c476991 6123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6124 struct wireless_dev *wdev;
4c476991 6125 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6126
6127 if (threshold > 0)
6128 return -EINVAL;
6129
d6dc1a38
JO		 6130 wdev = dev->ieee80211_ptr;
6131
4c476991
JB		 6132 if (!rdev->ops->set_cqm_rssi_config)
6133 return -EOPNOTSUPP;
d6dc1a38 6134
074ac8df 6135 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6136 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6137 return -EOPNOTSUPP;
d6dc1a38 6138
4c476991
JB		 6139 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6140 threshold, hysteresis);
d6dc1a38
JO		 6141}
6142
6143static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6144{
6145 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6146 struct nlattr *cqm;
6147 int err;
6148
6149 cqm = info->attrs[NL80211_ATTR_CQM];
6150 if (!cqm) {
6151 err = -EINVAL;
6152 goto out;
6153 }
6154
6155 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6156 nl80211_attr_cqm_policy);
6157 if (err)
6158 goto out;
6159
6160 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6161 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6162 s32 threshold;
6163 u32 hysteresis;
6164 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6165 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6166 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6167 } else
6168 err = -EINVAL;
6169
6170out:
6171 return err;
6172}
6173
29cbe68c
JB		 6174static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6175{
6176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6177 struct net_device *dev = info->user_ptr[1];
6178 struct mesh_config cfg;
c80d545d 6179 struct mesh_setup setup;
29cbe68c
JB		 6180 int err;
6181
6182 /* start with default */
6183 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6184 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6185
24bdd9f4 6186 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6187 /* and parse parameters if given */
24bdd9f4 6188 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6189 if (err)
6190 return err;
6191 }
6192
6193 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6194 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6195 return -EINVAL;
6196
c80d545d
JC		 6197 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6198 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6199
4bb62344
CYY		 6200 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6201 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6202 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6203 return -EINVAL;
6204
c80d545d
JC		 6205 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6206 /* parse additional setup parameters if given */
6207 err = nl80211_parse_mesh_setup(info, &setup);
6208 if (err)
6209 return err;
6210 }
6211
cc1d2806
JB		 6212 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6213 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6214
6215 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6216 !nl80211_valid_channel_type(info, &channel_type))
6217 return -EINVAL;
6218
6219 setup.channel = rdev_freq_to_chan(rdev,
6220 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6221 channel_type);
6222 if (!setup.channel)
6223 return -EINVAL;
6224 setup.channel_type = channel_type;
6225 } else {
6226 /* cfg80211_join_mesh() will sort it out */
6227 setup.channel = NULL;
6228 }
6229
c80d545d 6230 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6231}
6232
6233static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6234{
6235 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6236 struct net_device *dev = info->user_ptr[1];
6237
6238 return cfg80211_leave_mesh(rdev, dev);
6239}
6240
ff1b6e69
JB		 6241static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6242{
6243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6244 struct sk_buff *msg;
6245 void *hdr;
6246
6247 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6248 return -EOPNOTSUPP;
6249
6250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6251 if (!msg)
6252 return -ENOMEM;
6253
6254 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6255 NL80211_CMD_GET_WOWLAN);
6256 if (!hdr)
6257 goto nla_put_failure;
6258
6259 if (rdev->wowlan) {
6260 struct nlattr *nl_wowlan;
6261
6262 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6263 if (!nl_wowlan)
6264 goto nla_put_failure;
6265
9360ffd1
DM		 6266 if ((rdev->wowlan->any &&
6267 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6268 (rdev->wowlan->disconnect &&
6269 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6270 (rdev->wowlan->magic_pkt &&
6271 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6272 (rdev->wowlan->gtk_rekey_failure &&
6273 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6274 (rdev->wowlan->eap_identity_req &&
6275 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6276 (rdev->wowlan->four_way_handshake &&
6277 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6278 (rdev->wowlan->rfkill_release &&
6279 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6280 goto nla_put_failure;
ff1b6e69
JB		 6281 if (rdev->wowlan->n_patterns) {
6282 struct nlattr *nl_pats, *nl_pat;
6283 int i, pat_len;
6284
6285 nl_pats = nla_nest_start(msg,
6286 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6287 if (!nl_pats)
6288 goto nla_put_failure;
6289
6290 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6291 nl_pat = nla_nest_start(msg, i + 1);
6292 if (!nl_pat)
6293 goto nla_put_failure;
6294 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6295 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6296 DIV_ROUND_UP(pat_len, 8),
6297 rdev->wowlan->patterns[i].mask) ||
6298 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6299 pat_len,
6300 rdev->wowlan->patterns[i].pattern))
6301 goto nla_put_failure;
ff1b6e69
JB		 6302 nla_nest_end(msg, nl_pat);
6303 }
6304 nla_nest_end(msg, nl_pats);
6305 }
6306
6307 nla_nest_end(msg, nl_wowlan);
6308 }
6309
6310 genlmsg_end(msg, hdr);
6311 return genlmsg_reply(msg, info);
6312
6313nla_put_failure:
6314 nlmsg_free(msg);
6315 return -ENOBUFS;
6316}
6317
6318static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6319{
6320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6321 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6322 struct cfg80211_wowlan no_triggers = {};
6323 struct cfg80211_wowlan new_triggers = {};
6324 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6325 int err, i;
6d52563f 6326 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6327
6328 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6329 return -EOPNOTSUPP;
6330
6331 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6332 goto no_triggers;
6333
6334 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6335 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6336 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6337 nl80211_wowlan_policy);
6338 if (err)
6339 return err;
6340
6341 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6342 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6343 return -EINVAL;
6344 new_triggers.any = true;
6345 }
6346
6347 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6348 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6349 return -EINVAL;
6350 new_triggers.disconnect = true;
6351 }
6352
6353 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6354 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6355 return -EINVAL;
6356 new_triggers.magic_pkt = true;
6357 }
6358
77dbbb13
JB		 6359 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6360 return -EINVAL;
6361
6362 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6363 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6364 return -EINVAL;
6365 new_triggers.gtk_rekey_failure = true;
6366 }
6367
6368 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6369 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6370 return -EINVAL;
6371 new_triggers.eap_identity_req = true;
6372 }
6373
6374 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6375 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6376 return -EINVAL;
6377 new_triggers.four_way_handshake = true;
6378 }
6379
6380 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6381 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6382 return -EINVAL;
6383 new_triggers.rfkill_release = true;
6384 }
6385
ff1b6e69
JB		 6386 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6387 struct nlattr *pat;
6388 int n_patterns = 0;
6389 int rem, pat_len, mask_len;
6390 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6391
6392 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6393 rem)
6394 n_patterns++;
6395 if (n_patterns > wowlan->n_patterns)
6396 return -EINVAL;
6397
6398 new_triggers.patterns = kcalloc(n_patterns,
6399 sizeof(new_triggers.patterns[0]),
6400 GFP_KERNEL);
6401 if (!new_triggers.patterns)
6402 return -ENOMEM;
6403
6404 new_triggers.n_patterns = n_patterns;
6405 i = 0;
6406
6407 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6408 rem) {
6409 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6410 nla_data(pat), nla_len(pat), NULL);
6411 err = -EINVAL;
6412 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6413 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6414 goto error;
6415 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6416 mask_len = DIV_ROUND_UP(pat_len, 8);
6417 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6418 mask_len)
6419 goto error;
6420 if (pat_len > wowlan->pattern_max_len ||
6421 pat_len < wowlan->pattern_min_len)
6422 goto error;
6423
6424 new_triggers.patterns[i].mask =
6425 kmalloc(mask_len + pat_len, GFP_KERNEL);
6426 if (!new_triggers.patterns[i].mask) {
6427 err = -ENOMEM;
6428 goto error;
6429 }
6430 new_triggers.patterns[i].pattern =
6431 new_triggers.patterns[i].mask + mask_len;
6432 memcpy(new_triggers.patterns[i].mask,
6433 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6434 mask_len);
6435 new_triggers.patterns[i].pattern_len = pat_len;
6436 memcpy(new_triggers.patterns[i].pattern,
6437 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6438 pat_len);
6439 i++;
6440 }
6441 }
6442
6443 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6444 struct cfg80211_wowlan *ntrig;
6445 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6446 GFP_KERNEL);
6447 if (!ntrig) {
6448 err = -ENOMEM;
6449 goto error;
6450 }
6451 cfg80211_rdev_free_wowlan(rdev);
6452 rdev->wowlan = ntrig;
6453 } else {
6454 no_triggers:
6455 cfg80211_rdev_free_wowlan(rdev);
6456 rdev->wowlan = NULL;
6457 }
6458
6d52563f
JB		 6459 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6460 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6461
ff1b6e69
JB		 6462 return 0;
6463 error:
6464 for (i = 0; i < new_triggers.n_patterns; i++)
6465 kfree(new_triggers.patterns[i].mask);
6466 kfree(new_triggers.patterns);
6467 return err;
6468}
6469
e5497d76
JB		 6470static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6471{
6472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6473 struct net_device *dev = info->user_ptr[1];
6474 struct wireless_dev *wdev = dev->ieee80211_ptr;
6475 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6476 struct cfg80211_gtk_rekey_data rekey_data;
6477 int err;
6478
6479 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6480 return -EINVAL;
6481
6482 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6483 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6484 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6485 nl80211_rekey_policy);
6486 if (err)
6487 return err;
6488
6489 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6490 return -ERANGE;
6491 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6492 return -ERANGE;
6493 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6494 return -ERANGE;
6495
6496 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6497 NL80211_KEK_LEN);
6498 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6499 NL80211_KCK_LEN);
6500 memcpy(rekey_data.replay_ctr,
6501 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6502 NL80211_REPLAY_CTR_LEN);
6503
6504 wdev_lock(wdev);
6505 if (!wdev->current_bss) {
6506 err = -ENOTCONN;
6507 goto out;
6508 }
6509
6510 if (!rdev->ops->set_rekey_data) {
6511 err = -EOPNOTSUPP;
6512 goto out;
6513 }
6514
6515 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6516 out:
6517 wdev_unlock(wdev);
6518 return err;
6519}
6520
28946da7
JB		 6521static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6522 struct genl_info *info)
6523{
6524 struct net_device *dev = info->user_ptr[1];
6525 struct wireless_dev *wdev = dev->ieee80211_ptr;
6526
6527 if (wdev->iftype != NL80211_IFTYPE_AP &&
6528 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6529 return -EINVAL;
6530
6531 if (wdev->ap_unexpected_nlpid)
6532 return -EBUSY;
6533
6534 wdev->ap_unexpected_nlpid = info->snd_pid;
6535 return 0;
6536}
6537
7f6cf311
JB		 6538static int nl80211_probe_client(struct sk_buff *skb,
6539 struct genl_info *info)
6540{
6541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6542 struct net_device *dev = info->user_ptr[1];
6543 struct wireless_dev *wdev = dev->ieee80211_ptr;
6544 struct sk_buff *msg;
6545 void *hdr;
6546 const u8 *addr;
6547 u64 cookie;
6548 int err;
6549
6550 if (wdev->iftype != NL80211_IFTYPE_AP &&
6551 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6552 return -EOPNOTSUPP;
6553
6554 if (!info->attrs[NL80211_ATTR_MAC])
6555 return -EINVAL;
6556
6557 if (!rdev->ops->probe_client)
6558 return -EOPNOTSUPP;
6559
6560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6561 if (!msg)
6562 return -ENOMEM;
6563
6564 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6565 NL80211_CMD_PROBE_CLIENT);
6566
6567 if (IS_ERR(hdr)) {
6568 err = PTR_ERR(hdr);
6569 goto free_msg;
6570 }
6571
6572 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6573
6574 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6575 if (err)
6576 goto free_msg;
6577
9360ffd1
DM		 6578 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6579 goto nla_put_failure;
7f6cf311
JB		 6580
6581 genlmsg_end(msg, hdr);
6582
6583 return genlmsg_reply(msg, info);
6584
6585 nla_put_failure:
6586 err = -ENOBUFS;
6587 free_msg:
6588 nlmsg_free(msg);
6589 return err;
6590}
6591
5e760230
JB		 6592static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6593{
6594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6595
6596 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6597 return -EOPNOTSUPP;
6598
6599 if (rdev->ap_beacons_nlpid)
6600 return -EBUSY;
6601
6602 rdev->ap_beacons_nlpid = info->snd_pid;
6603
6604 return 0;
6605}
6606
4c476991
JB		 6607#define NL80211_FLAG_NEED_WIPHY 0x01
6608#define NL80211_FLAG_NEED_NETDEV 0x02
6609#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6610#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6611#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6612 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6613
6614static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6615 struct genl_info *info)
6616{
6617 struct cfg80211_registered_device *rdev;
6618 struct net_device *dev;
6619 int err;
6620 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6621
6622 if (rtnl)
6623 rtnl_lock();
6624
6625 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6626 rdev = cfg80211_get_dev_from_info(info);
6627 if (IS_ERR(rdev)) {
6628 if (rtnl)
6629 rtnl_unlock();
6630 return PTR_ERR(rdev);
6631 }
6632 info->user_ptr[0] = rdev;
6633 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6634 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6635 &rdev, &dev);
4c476991
JB		 6636 if (err) {
6637 if (rtnl)
6638 rtnl_unlock();
6639 return err;
6640 }
41265714
JB		 6641 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6642 !netif_running(dev)) {
d537f5fd
JB		 6643 cfg80211_unlock_rdev(rdev);
6644 dev_put(dev);
41265714
JB		 6645 if (rtnl)
6646 rtnl_unlock();
6647 return -ENETDOWN;
6648 }
4c476991
JB		 6649 info->user_ptr[0] = rdev;
6650 info->user_ptr[1] = dev;
6651 }
6652
6653 return 0;
6654}
6655
6656static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6657 struct genl_info *info)
6658{
6659 if (info->user_ptr[0])
6660 cfg80211_unlock_rdev(info->user_ptr[0]);
6661 if (info->user_ptr[1])
6662 dev_put(info->user_ptr[1]);
6663 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6664 rtnl_unlock();
6665}
6666
55682965
JB		 6667static struct genl_ops nl80211_ops[] = {
6668 {
6669 .cmd = NL80211_CMD_GET_WIPHY,
6670 .doit = nl80211_get_wiphy,
6671 .dumpit = nl80211_dump_wiphy,
6672 .policy = nl80211_policy,
6673 /* can be retrieved by unprivileged users */
4c476991 6674 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6675 },
6676 {
6677 .cmd = NL80211_CMD_SET_WIPHY,
6678 .doit = nl80211_set_wiphy,
6679 .policy = nl80211_policy,
6680 .flags = GENL_ADMIN_PERM,
4c476991 6681 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6682 },
6683 {
6684 .cmd = NL80211_CMD_GET_INTERFACE,
6685 .doit = nl80211_get_interface,
6686 .dumpit = nl80211_dump_interface,
6687 .policy = nl80211_policy,
6688 /* can be retrieved by unprivileged users */
4c476991 6689 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6690 },
6691 {
6692 .cmd = NL80211_CMD_SET_INTERFACE,
6693 .doit = nl80211_set_interface,
6694 .policy = nl80211_policy,
6695 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6696 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6697 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6698 },
6699 {
6700 .cmd = NL80211_CMD_NEW_INTERFACE,
6701 .doit = nl80211_new_interface,
6702 .policy = nl80211_policy,
6703 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6704 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6705 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6706 },
6707 {
6708 .cmd = NL80211_CMD_DEL_INTERFACE,
6709 .doit = nl80211_del_interface,
6710 .policy = nl80211_policy,
41ade00f 6711 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6712 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6713 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6714 },
6715 {
6716 .cmd = NL80211_CMD_GET_KEY,
6717 .doit = nl80211_get_key,
6718 .policy = nl80211_policy,
6719 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6721 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6722 },
6723 {
6724 .cmd = NL80211_CMD_SET_KEY,
6725 .doit = nl80211_set_key,
6726 .policy = nl80211_policy,
6727 .flags = GENL_ADMIN_PERM,
41265714 6728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6729 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6730 },
6731 {
6732 .cmd = NL80211_CMD_NEW_KEY,
6733 .doit = nl80211_new_key,
6734 .policy = nl80211_policy,
6735 .flags = GENL_ADMIN_PERM,
41265714 6736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6737 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6738 },
6739 {
6740 .cmd = NL80211_CMD_DEL_KEY,
6741 .doit = nl80211_del_key,
6742 .policy = nl80211_policy,
55682965 6743 .flags = GENL_ADMIN_PERM,
41265714 6744 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6745 NL80211_FLAG_NEED_RTNL,
55682965 6746 },
ed1b6cc7
JB		 6747 {
6748 .cmd = NL80211_CMD_SET_BEACON,
6749 .policy = nl80211_policy,
6750 .flags = GENL_ADMIN_PERM,
8860020e 6751 .doit = nl80211_set_beacon,
2b5f8b0b 6752 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6753 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6754 },
6755 {
8860020e 6756 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 6757 .policy = nl80211_policy,
6758 .flags = GENL_ADMIN_PERM,
8860020e 6759 .doit = nl80211_start_ap,
2b5f8b0b 6760 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6761 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6762 },
6763 {
8860020e 6764 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 6765 .policy = nl80211_policy,
6766 .flags = GENL_ADMIN_PERM,
8860020e 6767 .doit = nl80211_stop_ap,
2b5f8b0b 6768 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6769 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6770 },
5727ef1b
JB		 6771 {
6772 .cmd = NL80211_CMD_GET_STATION,
6773 .doit = nl80211_get_station,
2ec600d6 6774 .dumpit = nl80211_dump_station,
5727ef1b 6775 .policy = nl80211_policy,
4c476991
JB		 6776 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6777 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6778 },
6779 {
6780 .cmd = NL80211_CMD_SET_STATION,
6781 .doit = nl80211_set_station,
6782 .policy = nl80211_policy,
6783 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6785 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6786 },
6787 {
6788 .cmd = NL80211_CMD_NEW_STATION,
6789 .doit = nl80211_new_station,
6790 .policy = nl80211_policy,
6791 .flags = GENL_ADMIN_PERM,
41265714 6792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6793 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6794 },
6795 {
6796 .cmd = NL80211_CMD_DEL_STATION,
6797 .doit = nl80211_del_station,
6798 .policy = nl80211_policy,
2ec600d6 6799 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6801 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6802 },
6803 {
6804 .cmd = NL80211_CMD_GET_MPATH,
6805 .doit = nl80211_get_mpath,
6806 .dumpit = nl80211_dump_mpath,
6807 .policy = nl80211_policy,
6808 .flags = GENL_ADMIN_PERM,
41265714 6809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6810 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6811 },
6812 {
6813 .cmd = NL80211_CMD_SET_MPATH,
6814 .doit = nl80211_set_mpath,
6815 .policy = nl80211_policy,
6816 .flags = GENL_ADMIN_PERM,
41265714 6817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6818 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6819 },
6820 {
6821 .cmd = NL80211_CMD_NEW_MPATH,
6822 .doit = nl80211_new_mpath,
6823 .policy = nl80211_policy,
6824 .flags = GENL_ADMIN_PERM,
41265714 6825 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6826 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6827 },
6828 {
6829 .cmd = NL80211_CMD_DEL_MPATH,
6830 .doit = nl80211_del_mpath,
6831 .policy = nl80211_policy,
9f1ba906 6832 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6834 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6835 },
6836 {
6837 .cmd = NL80211_CMD_SET_BSS,
6838 .doit = nl80211_set_bss,
6839 .policy = nl80211_policy,
b2e1b302 6840 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6841 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6842 NL80211_FLAG_NEED_RTNL,
b2e1b302 6843 },
f130347c
LR		 6844 {
6845 .cmd = NL80211_CMD_GET_REG,
6846 .doit = nl80211_get_reg,
6847 .policy = nl80211_policy,
6848 /* can be retrieved by unprivileged users */
6849 },
b2e1b302
LR		 6850 {
6851 .cmd = NL80211_CMD_SET_REG,
6852 .doit = nl80211_set_reg,
6853 .policy = nl80211_policy,
6854 .flags = GENL_ADMIN_PERM,
6855 },
6856 {
6857 .cmd = NL80211_CMD_REQ_SET_REG,
6858 .doit = nl80211_req_set_reg,
6859 .policy = nl80211_policy,
93da9cc1 6860 .flags = GENL_ADMIN_PERM,
6861 },
6862 {
24bdd9f4
JC		 6863 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6864 .doit = nl80211_get_mesh_config,
93da9cc1 6865 .policy = nl80211_policy,
6866 /* can be retrieved by unprivileged users */
2b5f8b0b 6867 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6868 NL80211_FLAG_NEED_RTNL,
93da9cc1 6869 },
6870 {
24bdd9f4
JC		 6871 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6872 .doit = nl80211_update_mesh_config,
93da9cc1 6873 .policy = nl80211_policy,
9aed3cc1 6874 .flags = GENL_ADMIN_PERM,
29cbe68c 6875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6876 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6877 },
2a519311
JB		 6878 {
6879 .cmd = NL80211_CMD_TRIGGER_SCAN,
6880 .doit = nl80211_trigger_scan,
6881 .policy = nl80211_policy,
6882 .flags = GENL_ADMIN_PERM,
41265714 6883 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6884 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6885 },
6886 {
6887 .cmd = NL80211_CMD_GET_SCAN,
6888 .policy = nl80211_policy,
6889 .dumpit = nl80211_dump_scan,
6890 },
807f8a8c
LC		 6891 {
6892 .cmd = NL80211_CMD_START_SCHED_SCAN,
6893 .doit = nl80211_start_sched_scan,
6894 .policy = nl80211_policy,
6895 .flags = GENL_ADMIN_PERM,
6896 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6897 NL80211_FLAG_NEED_RTNL,
6898 },
6899 {
6900 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6901 .doit = nl80211_stop_sched_scan,
6902 .policy = nl80211_policy,
6903 .flags = GENL_ADMIN_PERM,
6904 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6905 NL80211_FLAG_NEED_RTNL,
6906 },
636a5d36
JM		 6907 {
6908 .cmd = NL80211_CMD_AUTHENTICATE,
6909 .doit = nl80211_authenticate,
6910 .policy = nl80211_policy,
6911 .flags = GENL_ADMIN_PERM,
41265714 6912 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6913 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6914 },
6915 {
6916 .cmd = NL80211_CMD_ASSOCIATE,
6917 .doit = nl80211_associate,
6918 .policy = nl80211_policy,
6919 .flags = GENL_ADMIN_PERM,
41265714 6920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6921 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6922 },
6923 {
6924 .cmd = NL80211_CMD_DEAUTHENTICATE,
6925 .doit = nl80211_deauthenticate,
6926 .policy = nl80211_policy,
6927 .flags = GENL_ADMIN_PERM,
41265714 6928 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6929 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6930 },
6931 {
6932 .cmd = NL80211_CMD_DISASSOCIATE,
6933 .doit = nl80211_disassociate,
6934 .policy = nl80211_policy,
6935 .flags = GENL_ADMIN_PERM,
41265714 6936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6937 NL80211_FLAG_NEED_RTNL,
636a5d36 6938 },
04a773ad
JB		 6939 {
6940 .cmd = NL80211_CMD_JOIN_IBSS,
6941 .doit = nl80211_join_ibss,
6942 .policy = nl80211_policy,
6943 .flags = GENL_ADMIN_PERM,
41265714 6944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6945 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6946 },
6947 {
6948 .cmd = NL80211_CMD_LEAVE_IBSS,
6949 .doit = nl80211_leave_ibss,
6950 .policy = nl80211_policy,
6951 .flags = GENL_ADMIN_PERM,
41265714 6952 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6953 NL80211_FLAG_NEED_RTNL,
04a773ad 6954 },
aff89a9b
JB		 6955#ifdef CONFIG_NL80211_TESTMODE
6956 {
6957 .cmd = NL80211_CMD_TESTMODE,
6958 .doit = nl80211_testmode_do,
71063f0e 6959 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6960 .policy = nl80211_policy,
6961 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6962 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6963 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6964 },
6965#endif
b23aa676
SO		 6966 {
6967 .cmd = NL80211_CMD_CONNECT,
6968 .doit = nl80211_connect,
6969 .policy = nl80211_policy,
6970 .flags = GENL_ADMIN_PERM,
41265714 6971 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6972 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6973 },
6974 {
6975 .cmd = NL80211_CMD_DISCONNECT,
6976 .doit = nl80211_disconnect,
6977 .policy = nl80211_policy,
6978 .flags = GENL_ADMIN_PERM,
41265714 6979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6980 NL80211_FLAG_NEED_RTNL,
b23aa676 6981 },
463d0183
JB		 6982 {
6983 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6984 .doit = nl80211_wiphy_netns,
6985 .policy = nl80211_policy,
6986 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6987 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6988 NL80211_FLAG_NEED_RTNL,
463d0183 6989 },
61fa713c
HS		 6990 {
6991 .cmd = NL80211_CMD_GET_SURVEY,
6992 .policy = nl80211_policy,
6993 .dumpit = nl80211_dump_survey,
6994 },
67fbb16b
SO		 6995 {
6996 .cmd = NL80211_CMD_SET_PMKSA,
6997 .doit = nl80211_setdel_pmksa,
6998 .policy = nl80211_policy,
6999 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7000 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7001 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7002 },
7003 {
7004 .cmd = NL80211_CMD_DEL_PMKSA,
7005 .doit = nl80211_setdel_pmksa,
7006 .policy = nl80211_policy,
7007 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7008 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7009 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7010 },
7011 {
7012 .cmd = NL80211_CMD_FLUSH_PMKSA,
7013 .doit = nl80211_flush_pmksa,
7014 .policy = nl80211_policy,
7015 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7016 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7017 NL80211_FLAG_NEED_RTNL,
67fbb16b 7018 },
9588bbd5
JM		 7019 {
7020 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7021 .doit = nl80211_remain_on_channel,
7022 .policy = nl80211_policy,
7023 .flags = GENL_ADMIN_PERM,
41265714 7024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7025 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7026 },
7027 {
7028 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7029 .doit = nl80211_cancel_remain_on_channel,
7030 .policy = nl80211_policy,
7031 .flags = GENL_ADMIN_PERM,
41265714 7032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7033 NL80211_FLAG_NEED_RTNL,
9588bbd5 7034 },
13ae75b1
JM		 7035 {
7036 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7037 .doit = nl80211_set_tx_bitrate_mask,
7038 .policy = nl80211_policy,
7039 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7040 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7041 NL80211_FLAG_NEED_RTNL,
13ae75b1 7042 },
026331c4 7043 {
2e161f78
JB		 7044 .cmd = NL80211_CMD_REGISTER_FRAME,
7045 .doit = nl80211_register_mgmt,
026331c4
JM		 7046 .policy = nl80211_policy,
7047 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7048 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7049 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7050 },
7051 {
2e161f78
JB		 7052 .cmd = NL80211_CMD_FRAME,
7053 .doit = nl80211_tx_mgmt,
026331c4 7054 .policy = nl80211_policy,
f7ca38df
JB		 7055 .flags = GENL_ADMIN_PERM,
7056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7057 NL80211_FLAG_NEED_RTNL,
7058 },
7059 {
7060 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7061 .doit = nl80211_tx_mgmt_cancel_wait,
7062 .policy = nl80211_policy,
026331c4 7063 .flags = GENL_ADMIN_PERM,
41265714 7064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7065 NL80211_FLAG_NEED_RTNL,
026331c4 7066 },
ffb9eb3d
KV		 7067 {
7068 .cmd = NL80211_CMD_SET_POWER_SAVE,
7069 .doit = nl80211_set_power_save,
7070 .policy = nl80211_policy,
7071 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7072 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7073 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7074 },
7075 {
7076 .cmd = NL80211_CMD_GET_POWER_SAVE,
7077 .doit = nl80211_get_power_save,
7078 .policy = nl80211_policy,
7079 /* can be retrieved by unprivileged users */
4c476991
JB		 7080 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7081 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7082 },
d6dc1a38
JO		 7083 {
7084 .cmd = NL80211_CMD_SET_CQM,
7085 .doit = nl80211_set_cqm,
7086 .policy = nl80211_policy,
7087 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7088 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7089 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7090 },
f444de05
JB		 7091 {
7092 .cmd = NL80211_CMD_SET_CHANNEL,
7093 .doit = nl80211_set_channel,
7094 .policy = nl80211_policy,
7095 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7096 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7097 NL80211_FLAG_NEED_RTNL,
f444de05 7098 },
e8347eba
BJ		 7099 {
7100 .cmd = NL80211_CMD_SET_WDS_PEER,
7101 .doit = nl80211_set_wds_peer,
7102 .policy = nl80211_policy,
7103 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7104 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7105 NL80211_FLAG_NEED_RTNL,
e8347eba 7106 },
29cbe68c
JB		 7107 {
7108 .cmd = NL80211_CMD_JOIN_MESH,
7109 .doit = nl80211_join_mesh,
7110 .policy = nl80211_policy,
7111 .flags = GENL_ADMIN_PERM,
7112 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7113 NL80211_FLAG_NEED_RTNL,
7114 },
7115 {
7116 .cmd = NL80211_CMD_LEAVE_MESH,
7117 .doit = nl80211_leave_mesh,
7118 .policy = nl80211_policy,
7119 .flags = GENL_ADMIN_PERM,
7120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7121 NL80211_FLAG_NEED_RTNL,
7122 },
ff1b6e69
JB		 7123 {
7124 .cmd = NL80211_CMD_GET_WOWLAN,
7125 .doit = nl80211_get_wowlan,
7126 .policy = nl80211_policy,
7127 /* can be retrieved by unprivileged users */
7128 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7129 NL80211_FLAG_NEED_RTNL,
7130 },
7131 {
7132 .cmd = NL80211_CMD_SET_WOWLAN,
7133 .doit = nl80211_set_wowlan,
7134 .policy = nl80211_policy,
7135 .flags = GENL_ADMIN_PERM,
7136 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7137 NL80211_FLAG_NEED_RTNL,
7138 },
e5497d76
JB		 7139 {
7140 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7141 .doit = nl80211_set_rekey_data,
7142 .policy = nl80211_policy,
7143 .flags = GENL_ADMIN_PERM,
7144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7145 NL80211_FLAG_NEED_RTNL,
7146 },
109086ce
AN		 7147 {
7148 .cmd = NL80211_CMD_TDLS_MGMT,
7149 .doit = nl80211_tdls_mgmt,
7150 .policy = nl80211_policy,
7151 .flags = GENL_ADMIN_PERM,
7152 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7153 NL80211_FLAG_NEED_RTNL,
7154 },
7155 {
7156 .cmd = NL80211_CMD_TDLS_OPER,
7157 .doit = nl80211_tdls_oper,
7158 .policy = nl80211_policy,
7159 .flags = GENL_ADMIN_PERM,
7160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7161 NL80211_FLAG_NEED_RTNL,
7162 },
28946da7
JB		 7163 {
7164 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7165 .doit = nl80211_register_unexpected_frame,
7166 .policy = nl80211_policy,
7167 .flags = GENL_ADMIN_PERM,
7168 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7169 NL80211_FLAG_NEED_RTNL,
7170 },
7f6cf311
JB		 7171 {
7172 .cmd = NL80211_CMD_PROBE_CLIENT,
7173 .doit = nl80211_probe_client,
7174 .policy = nl80211_policy,
7175 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7177 NL80211_FLAG_NEED_RTNL,
7178 },
5e760230
JB		 7179 {
7180 .cmd = NL80211_CMD_REGISTER_BEACONS,
7181 .doit = nl80211_register_beacons,
7182 .policy = nl80211_policy,
7183 .flags = GENL_ADMIN_PERM,
7184 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7185 NL80211_FLAG_NEED_RTNL,
7186 },
1d9d9213
SW		 7187 {
7188 .cmd = NL80211_CMD_SET_NOACK_MAP,
7189 .doit = nl80211_set_noack_map,
7190 .policy = nl80211_policy,
7191 .flags = GENL_ADMIN_PERM,
7192 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7193 NL80211_FLAG_NEED_RTNL,
7194 },
7195
55682965 7196};
9588bbd5 7197
6039f6d2
JM		 7198static struct genl_multicast_group nl80211_mlme_mcgrp = {
7199 .name = "mlme",
7200};
55682965
JB		 7201
7202/* multicast groups */
7203static struct genl_multicast_group nl80211_config_mcgrp = {
7204 .name = "config",
7205};
2a519311
JB		 7206static struct genl_multicast_group nl80211_scan_mcgrp = {
7207 .name = "scan",
7208};
73d54c9e
LR		 7209static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7210 .name = "regulatory",
7211};
55682965
JB		 7212
7213/* notification functions */
7214
7215void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7216{
7217 struct sk_buff *msg;
7218
fd2120ca 7219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7220 if (!msg)
7221 return;
7222
7223 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7224 nlmsg_free(msg);
7225 return;
7226 }
7227
463d0183
JB		 7228 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7229 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7230}
7231
362a415d
JB		 7232static int nl80211_add_scan_req(struct sk_buff *msg,
7233 struct cfg80211_registered_device *rdev)
7234{
7235 struct cfg80211_scan_request *req = rdev->scan_req;
7236 struct nlattr *nest;
7237 int i;
7238
667503dd
JB		 7239 ASSERT_RDEV_LOCK(rdev);
7240
362a415d
JB		 7241 if (WARN_ON(!req))
7242 return 0;
7243
7244 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7245 if (!nest)
7246 goto nla_put_failure;
9360ffd1
DM		 7247 for (i = 0; i < req->n_ssids; i++) {
7248 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7249 goto nla_put_failure;
7250 }
362a415d
JB		 7251 nla_nest_end(msg, nest);
7252
7253 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7254 if (!nest)
7255 goto nla_put_failure;
9360ffd1
DM		 7256 for (i = 0; i < req->n_channels; i++) {
7257 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7258 goto nla_put_failure;
7259 }
362a415d
JB		 7260 nla_nest_end(msg, nest);
7261
9360ffd1
DM		 7262 if (req->ie &&
7263 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7264 goto nla_put_failure;
362a415d
JB		 7265
7266 return 0;
7267 nla_put_failure:
7268 return -ENOBUFS;
7269}
7270
a538e2d5
JB		 7271static int nl80211_send_scan_msg(struct sk_buff *msg,
7272 struct cfg80211_registered_device *rdev,
7273 struct net_device *netdev,
7274 u32 pid, u32 seq, int flags,
7275 u32 cmd)
2a519311
JB		 7276{
7277 void *hdr;
7278
7279 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7280 if (!hdr)
7281 return -1;
7282
9360ffd1
DM		 7283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7284 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7285 goto nla_put_failure;
2a519311 7286
362a415d
JB		 7287 /* ignore errors and send incomplete event anyway */
7288 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7289
7290 return genlmsg_end(msg, hdr);
7291
7292 nla_put_failure:
7293 genlmsg_cancel(msg, hdr);
7294 return -EMSGSIZE;
7295}
7296
807f8a8c
LC		 7297static int
7298nl80211_send_sched_scan_msg(struct sk_buff *msg,
7299 struct cfg80211_registered_device *rdev,
7300 struct net_device *netdev,
7301 u32 pid, u32 seq, int flags, u32 cmd)
7302{
7303 void *hdr;
7304
7305 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7306 if (!hdr)
7307 return -1;
7308
9360ffd1
DM		 7309 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7310 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7311 goto nla_put_failure;
807f8a8c
LC		 7312
7313 return genlmsg_end(msg, hdr);
7314
7315 nla_put_failure:
7316 genlmsg_cancel(msg, hdr);
7317 return -EMSGSIZE;
7318}
7319
a538e2d5
JB		 7320void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7321 struct net_device *netdev)
7322{
7323 struct sk_buff *msg;
7324
7325 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7326 if (!msg)
7327 return;
7328
7329 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7330 NL80211_CMD_TRIGGER_SCAN) < 0) {
7331 nlmsg_free(msg);
7332 return;
7333 }
7334
463d0183
JB		 7335 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7336 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7337}
7338
2a519311
JB		 7339void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7340 struct net_device *netdev)
7341{
7342 struct sk_buff *msg;
7343
fd2120ca 7344 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7345 if (!msg)
7346 return;
7347
a538e2d5
JB		 7348 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7349 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7350 nlmsg_free(msg);
7351 return;
7352 }
7353
463d0183
JB		 7354 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7355 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7356}
7357
7358void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7359 struct net_device *netdev)
7360{
7361 struct sk_buff *msg;
7362
fd2120ca 7363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7364 if (!msg)
7365 return;
7366
a538e2d5
JB		 7367 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7368 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7369 nlmsg_free(msg);
7370 return;
7371 }
7372
463d0183
JB		 7373 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7374 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7375}
7376
807f8a8c
LC		 7377void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7378 struct net_device *netdev)
7379{
7380 struct sk_buff *msg;
7381
7382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7383 if (!msg)
7384 return;
7385
7386 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7387 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7388 nlmsg_free(msg);
7389 return;
7390 }
7391
7392 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7393 nl80211_scan_mcgrp.id, GFP_KERNEL);
7394}
7395
7396void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7397 struct net_device *netdev, u32 cmd)
7398{
7399 struct sk_buff *msg;
7400
7401 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7402 if (!msg)
7403 return;
7404
7405 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7406 nlmsg_free(msg);
7407 return;
7408 }
7409
7410 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7411 nl80211_scan_mcgrp.id, GFP_KERNEL);
7412}
7413
73d54c9e
LR		 7414/*
7415 * This can happen on global regulatory changes or device specific settings
7416 * based on custom world regulatory domains.
7417 */
7418void nl80211_send_reg_change_event(struct regulatory_request *request)
7419{
7420 struct sk_buff *msg;
7421 void *hdr;
7422
fd2120ca 7423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7424 if (!msg)
7425 return;
7426
7427 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7428 if (!hdr) {
7429 nlmsg_free(msg);
7430 return;
7431 }
7432
7433 /* Userspace can always count this one always being set */
9360ffd1
DM		 7434 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7435 goto nla_put_failure;
7436
7437 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7438 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7439 NL80211_REGDOM_TYPE_WORLD))
7440 goto nla_put_failure;
7441 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7442 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7443 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7444 goto nla_put_failure;
7445 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7446 request->intersect) {
7447 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7448 NL80211_REGDOM_TYPE_INTERSECTION))
7449 goto nla_put_failure;
7450 } else {
7451 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7452 NL80211_REGDOM_TYPE_COUNTRY) ||
7453 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7454 request->alpha2))
7455 goto nla_put_failure;
7456 }
7457
7458 if (wiphy_idx_valid(request->wiphy_idx) &&
7459 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7460 goto nla_put_failure;
73d54c9e 7461
3b7b72ee 7462 genlmsg_end(msg, hdr);
73d54c9e 7463
bc43b28c 7464 rcu_read_lock();
463d0183 7465 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7466 GFP_ATOMIC);
7467 rcu_read_unlock();
73d54c9e
LR		 7468
7469 return;
7470
7471nla_put_failure:
7472 genlmsg_cancel(msg, hdr);
7473 nlmsg_free(msg);
7474}
7475
6039f6d2
JM		 7476static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7477 struct net_device *netdev,
7478 const u8 *buf, size_t len,
e6d6e342 7479 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7480{
7481 struct sk_buff *msg;
7482 void *hdr;
7483
e6d6e342 7484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7485 if (!msg)
7486 return;
7487
7488 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7489 if (!hdr) {
7490 nlmsg_free(msg);
7491 return;
7492 }
7493
9360ffd1
DM		 7494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7495 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7496 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7497 goto nla_put_failure;
6039f6d2 7498
3b7b72ee 7499 genlmsg_end(msg, hdr);
6039f6d2 7500
463d0183
JB		 7501 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7502 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7503 return;
7504
7505 nla_put_failure:
7506 genlmsg_cancel(msg, hdr);
7507 nlmsg_free(msg);
7508}
7509
7510void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7511 struct net_device *netdev, const u8 *buf,
7512 size_t len, gfp_t gfp)
6039f6d2
JM		 7513{
7514 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7515 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7516}
7517
7518void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7519 struct net_device *netdev, const u8 *buf,
e6d6e342 7520 size_t len, gfp_t gfp)
6039f6d2 7521{
e6d6e342
JB		 7522 nl80211_send_mlme_event(rdev, netdev, buf, len,
7523 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7524}
7525
53b46b84 7526void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7527 struct net_device *netdev, const u8 *buf,
7528 size_t len, gfp_t gfp)
6039f6d2
JM		 7529{
7530 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7531 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7532}
7533
53b46b84
JM		 7534void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7535 struct net_device *netdev, const u8 *buf,
e6d6e342 7536 size_t len, gfp_t gfp)
6039f6d2
JM		 7537{
7538 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7539 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7540}
7541
cf4e594e
JM		 7542void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7543 struct net_device *netdev, const u8 *buf,
7544 size_t len, gfp_t gfp)
7545{
7546 nl80211_send_mlme_event(rdev, netdev, buf, len,
7547 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7548}
7549
7550void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7551 struct net_device *netdev, const u8 *buf,
7552 size_t len, gfp_t gfp)
7553{
7554 nl80211_send_mlme_event(rdev, netdev, buf, len,
7555 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7556}
7557
1b06bb40
LR		 7558static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7559 struct net_device *netdev, int cmd,
e6d6e342 7560 const u8 *addr, gfp_t gfp)
1965c853
JM		 7561{
7562 struct sk_buff *msg;
7563 void *hdr;
7564
e6d6e342 7565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7566 if (!msg)
7567 return;
7568
7569 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7570 if (!hdr) {
7571 nlmsg_free(msg);
7572 return;
7573 }
7574
9360ffd1
DM		 7575 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7576 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7577 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7579 goto nla_put_failure;
1965c853 7580
3b7b72ee 7581 genlmsg_end(msg, hdr);
1965c853 7582
463d0183
JB		 7583 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7584 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7585 return;
7586
7587 nla_put_failure:
7588 genlmsg_cancel(msg, hdr);
7589 nlmsg_free(msg);
7590}
7591
7592void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7593 struct net_device *netdev, const u8 *addr,
7594 gfp_t gfp)
1965c853
JM		 7595{
7596 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7597 addr, gfp);
1965c853
JM		 7598}
7599
7600void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7601 struct net_device *netdev, const u8 *addr,
7602 gfp_t gfp)
1965c853 7603{
e6d6e342
JB		 7604 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7605 addr, gfp);
1965c853
JM		 7606}
7607
b23aa676
SO		 7608void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7609 struct net_device *netdev, const u8 *bssid,
7610 const u8 *req_ie, size_t req_ie_len,
7611 const u8 *resp_ie, size_t resp_ie_len,
7612 u16 status, gfp_t gfp)
7613{
7614 struct sk_buff *msg;
7615 void *hdr;
7616
7617 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7618 if (!msg)
7619 return;
7620
7621 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7622 if (!hdr) {
7623 nlmsg_free(msg);
7624 return;
7625 }
7626
9360ffd1
DM		 7627 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7628 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7629 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7630 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7631 (req_ie &&
7632 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7633 (resp_ie &&
7634 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7635 goto nla_put_failure;
b23aa676 7636
3b7b72ee 7637 genlmsg_end(msg, hdr);
b23aa676 7638
463d0183
JB		 7639 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7640 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7641 return;
7642
7643 nla_put_failure:
7644 genlmsg_cancel(msg, hdr);
7645 nlmsg_free(msg);
7646
7647}
7648
7649void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7650 struct net_device *netdev, const u8 *bssid,
7651 const u8 *req_ie, size_t req_ie_len,
7652 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7653{
7654 struct sk_buff *msg;
7655 void *hdr;
7656
7657 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7658 if (!msg)
7659 return;
7660
7661 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7662 if (!hdr) {
7663 nlmsg_free(msg);
7664 return;
7665 }
7666
9360ffd1
DM		 7667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7668 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7669 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7670 (req_ie &&
7671 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7672 (resp_ie &&
7673 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7674 goto nla_put_failure;
b23aa676 7675
3b7b72ee 7676 genlmsg_end(msg, hdr);
b23aa676 7677
463d0183
JB		 7678 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7679 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7680 return;
7681
7682 nla_put_failure:
7683 genlmsg_cancel(msg, hdr);
7684 nlmsg_free(msg);
7685
7686}
7687
7688void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7689 struct net_device *netdev, u16 reason,
667503dd 7690 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7691{
7692 struct sk_buff *msg;
7693 void *hdr;
7694
667503dd 7695 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7696 if (!msg)
7697 return;
7698
7699 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7700 if (!hdr) {
7701 nlmsg_free(msg);
7702 return;
7703 }
7704
9360ffd1
DM		 7705 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7706 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7707 (from_ap && reason &&
7708 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7709 (from_ap &&
7710 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7711 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7712 goto nla_put_failure;
b23aa676 7713
3b7b72ee 7714 genlmsg_end(msg, hdr);
b23aa676 7715
463d0183
JB		 7716 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7717 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7718 return;
7719
7720 nla_put_failure:
7721 genlmsg_cancel(msg, hdr);
7722 nlmsg_free(msg);
7723
7724}
7725
04a773ad
JB		 7726void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7727 struct net_device *netdev, const u8 *bssid,
7728 gfp_t gfp)
7729{
7730 struct sk_buff *msg;
7731 void *hdr;
7732
fd2120ca 7733 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7734 if (!msg)
7735 return;
7736
7737 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7738 if (!hdr) {
7739 nlmsg_free(msg);
7740 return;
7741 }
7742
9360ffd1
DM		 7743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7744 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7745 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7746 goto nla_put_failure;
04a773ad 7747
3b7b72ee 7748 genlmsg_end(msg, hdr);
04a773ad 7749
463d0183
JB		 7750 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7751 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7752 return;
7753
7754 nla_put_failure:
7755 genlmsg_cancel(msg, hdr);
7756 nlmsg_free(msg);
7757}
7758
c93b5e71
JC		 7759void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7760 struct net_device *netdev,
7761 const u8 *macaddr, const u8* ie, u8 ie_len,
7762 gfp_t gfp)
7763{
7764 struct sk_buff *msg;
7765 void *hdr;
7766
7767 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7768 if (!msg)
7769 return;
7770
7771 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7772 if (!hdr) {
7773 nlmsg_free(msg);
7774 return;
7775 }
7776
9360ffd1
DM		 7777 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7778 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7779 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7780 (ie_len && ie &&
7781 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7782 goto nla_put_failure;
c93b5e71 7783
3b7b72ee 7784 genlmsg_end(msg, hdr);
c93b5e71
JC		 7785
7786 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7787 nl80211_mlme_mcgrp.id, gfp);
7788 return;
7789
7790 nla_put_failure:
7791 genlmsg_cancel(msg, hdr);
7792 nlmsg_free(msg);
7793}
7794
a3b8b056
JM		 7795void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7796 struct net_device *netdev, const u8 *addr,
7797 enum nl80211_key_type key_type, int key_id,
e6d6e342 7798 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7799{
7800 struct sk_buff *msg;
7801 void *hdr;
7802
e6d6e342 7803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7804 if (!msg)
7805 return;
7806
7807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7808 if (!hdr) {
7809 nlmsg_free(msg);
7810 return;
7811 }
7812
9360ffd1
DM		 7813 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7814 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7815 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7816 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7817 (key_id != -1 &&
7818 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7819 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7820 goto nla_put_failure;
a3b8b056 7821
3b7b72ee 7822 genlmsg_end(msg, hdr);
a3b8b056 7823
463d0183
JB		 7824 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7825 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7826 return;
7827
7828 nla_put_failure:
7829 genlmsg_cancel(msg, hdr);
7830 nlmsg_free(msg);
7831}
7832
6bad8766
LR		 7833void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7834 struct ieee80211_channel *channel_before,
7835 struct ieee80211_channel *channel_after)
7836{
7837 struct sk_buff *msg;
7838 void *hdr;
7839 struct nlattr *nl_freq;
7840
fd2120ca 7841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7842 if (!msg)
7843 return;
7844
7845 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7846 if (!hdr) {
7847 nlmsg_free(msg);
7848 return;
7849 }
7850
7851 /*
7852 * Since we are applying the beacon hint to a wiphy we know its
7853 * wiphy_idx is valid
7854 */
9360ffd1
DM		 7855 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7856 goto nla_put_failure;
6bad8766
LR		 7857
7858 /* Before */
7859 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7860 if (!nl_freq)
7861 goto nla_put_failure;
7862 if (nl80211_msg_put_channel(msg, channel_before))
7863 goto nla_put_failure;
7864 nla_nest_end(msg, nl_freq);
7865
7866 /* After */
7867 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7868 if (!nl_freq)
7869 goto nla_put_failure;
7870 if (nl80211_msg_put_channel(msg, channel_after))
7871 goto nla_put_failure;
7872 nla_nest_end(msg, nl_freq);
7873
3b7b72ee 7874 genlmsg_end(msg, hdr);
6bad8766 7875
463d0183
JB		 7876 rcu_read_lock();
7877 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7878 GFP_ATOMIC);
7879 rcu_read_unlock();
6bad8766
LR		 7880
7881 return;
7882
7883nla_put_failure:
7884 genlmsg_cancel(msg, hdr);
7885 nlmsg_free(msg);
7886}
7887
9588bbd5
JM		 7888static void nl80211_send_remain_on_chan_event(
7889 int cmd, struct cfg80211_registered_device *rdev,
7890 struct net_device *netdev, u64 cookie,
7891 struct ieee80211_channel *chan,
7892 enum nl80211_channel_type channel_type,
7893 unsigned int duration, gfp_t gfp)
7894{
7895 struct sk_buff *msg;
7896 void *hdr;
7897
7898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
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_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7911 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7912 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7913 goto nla_put_failure;
9588bbd5 7914
9360ffd1
DM		 7915 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7916 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7917 goto nla_put_failure;
9588bbd5 7918
3b7b72ee 7919 genlmsg_end(msg, hdr);
9588bbd5
JM		 7920
7921 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7922 nl80211_mlme_mcgrp.id, gfp);
7923 return;
7924
7925 nla_put_failure:
7926 genlmsg_cancel(msg, hdr);
7927 nlmsg_free(msg);
7928}
7929
7930void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7931 struct net_device *netdev, u64 cookie,
7932 struct ieee80211_channel *chan,
7933 enum nl80211_channel_type channel_type,
7934 unsigned int duration, gfp_t gfp)
7935{
7936 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7937 rdev, netdev, cookie, chan,
7938 channel_type, duration, gfp);
7939}
7940
7941void nl80211_send_remain_on_channel_cancel(
7942 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7943 u64 cookie, struct ieee80211_channel *chan,
7944 enum nl80211_channel_type channel_type, gfp_t gfp)
7945{
7946 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7947 rdev, netdev, cookie, chan,
7948 channel_type, 0, gfp);
7949}
7950
98b62183
JB		 7951void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7952 struct net_device *dev, const u8 *mac_addr,
7953 struct station_info *sinfo, gfp_t gfp)
7954{
7955 struct sk_buff *msg;
7956
7957 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7958 if (!msg)
7959 return;
7960
66266b3a
JL		 7961 if (nl80211_send_station(msg, 0, 0, 0,
7962 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 7963 nlmsg_free(msg);
7964 return;
7965 }
7966
7967 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7968 nl80211_mlme_mcgrp.id, gfp);
7969}
7970
ec15e68b
JM		 7971void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7972 struct net_device *dev, const u8 *mac_addr,
7973 gfp_t gfp)
7974{
7975 struct sk_buff *msg;
7976 void *hdr;
7977
7978 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7979 if (!msg)
7980 return;
7981
7982 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7983 if (!hdr) {
7984 nlmsg_free(msg);
7985 return;
7986 }
7987
9360ffd1
DM		 7988 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
7989 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
7990 goto nla_put_failure;
ec15e68b 7991
3b7b72ee 7992 genlmsg_end(msg, hdr);
ec15e68b
JM		 7993
7994 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7995 nl80211_mlme_mcgrp.id, gfp);
7996 return;
7997
7998 nla_put_failure:
7999 genlmsg_cancel(msg, hdr);
8000 nlmsg_free(msg);
8001}
8002
b92ab5d8
JB		 8003static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8004 const u8 *addr, gfp_t gfp)
28946da7
JB		 8005{
8006 struct wireless_dev *wdev = dev->ieee80211_ptr;
8007 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8008 struct sk_buff *msg;
8009 void *hdr;
8010 int err;
8011 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8012
8013 if (!nlpid)
8014 return false;
8015
8016 msg = nlmsg_new(100, gfp);
8017 if (!msg)
8018 return true;
8019
b92ab5d8 8020 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8021 if (!hdr) {
8022 nlmsg_free(msg);
8023 return true;
8024 }
8025
9360ffd1
DM		 8026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8027 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8028 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8029 goto nla_put_failure;
28946da7
JB		 8030
8031 err = genlmsg_end(msg, hdr);
8032 if (err < 0) {
8033 nlmsg_free(msg);
8034 return true;
8035 }
8036
8037 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8038 return true;
8039
8040 nla_put_failure:
8041 genlmsg_cancel(msg, hdr);
8042 nlmsg_free(msg);
8043 return true;
8044}
8045
b92ab5d8
JB		 8046bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8047{
8048 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8049 addr, gfp);
8050}
8051
8052bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8053 const u8 *addr, gfp_t gfp)
8054{
8055 return __nl80211_unexpected_frame(dev,
8056 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8057 addr, gfp);
8058}
8059
2e161f78
JB		 8060int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8061 struct net_device *netdev, u32 nlpid,
804483e9
JB		 8062 int freq, int sig_dbm,
8063 const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 8064{
8065 struct sk_buff *msg;
8066 void *hdr;
026331c4
JM		 8067
8068 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8069 if (!msg)
8070 return -ENOMEM;
8071
2e161f78 8072 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8073 if (!hdr) {
8074 nlmsg_free(msg);
8075 return -ENOMEM;
8076 }
8077
9360ffd1
DM		 8078 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8079 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8080 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8081 (sig_dbm &&
8082 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8083 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8084 goto nla_put_failure;
026331c4 8085
3b7b72ee 8086 genlmsg_end(msg, hdr);
026331c4 8087
3b7b72ee 8088 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 8089
8090 nla_put_failure:
8091 genlmsg_cancel(msg, hdr);
8092 nlmsg_free(msg);
8093 return -ENOBUFS;
8094}
8095
2e161f78
JB		 8096void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8097 struct net_device *netdev, u64 cookie,
8098 const u8 *buf, size_t len, bool ack,
8099 gfp_t gfp)
026331c4
JM		 8100{
8101 struct sk_buff *msg;
8102 void *hdr;
8103
8104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8105 if (!msg)
8106 return;
8107
2e161f78 8108 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8109 if (!hdr) {
8110 nlmsg_free(msg);
8111 return;
8112 }
8113
9360ffd1
DM		 8114 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8115 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8116 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8117 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8118 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8119 goto nla_put_failure;
026331c4 8120
3b7b72ee 8121 genlmsg_end(msg, hdr);
026331c4
JM		 8122
8123 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8124 return;
8125
8126 nla_put_failure:
8127 genlmsg_cancel(msg, hdr);
8128 nlmsg_free(msg);
8129}
8130
d6dc1a38
JO		 8131void
8132nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8133 struct net_device *netdev,
8134 enum nl80211_cqm_rssi_threshold_event rssi_event,
8135 gfp_t gfp)
8136{
8137 struct sk_buff *msg;
8138 struct nlattr *pinfoattr;
8139 void *hdr;
8140
8141 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8142 if (!msg)
8143 return;
8144
8145 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8146 if (!hdr) {
8147 nlmsg_free(msg);
8148 return;
8149 }
8150
9360ffd1
DM		 8151 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8152 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8153 goto nla_put_failure;
d6dc1a38
JO		 8154
8155 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8156 if (!pinfoattr)
8157 goto nla_put_failure;
8158
9360ffd1
DM		 8159 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8160 rssi_event))
8161 goto nla_put_failure;
d6dc1a38
JO		 8162
8163 nla_nest_end(msg, pinfoattr);
8164
3b7b72ee 8165 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8166
8167 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8168 nl80211_mlme_mcgrp.id, gfp);
8169 return;
8170
8171 nla_put_failure:
8172 genlmsg_cancel(msg, hdr);
8173 nlmsg_free(msg);
8174}
8175
e5497d76
JB		 8176void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8177 struct net_device *netdev, const u8 *bssid,
8178 const u8 *replay_ctr, gfp_t gfp)
8179{
8180 struct sk_buff *msg;
8181 struct nlattr *rekey_attr;
8182 void *hdr;
8183
8184 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8185 if (!msg)
8186 return;
8187
8188 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8189 if (!hdr) {
8190 nlmsg_free(msg);
8191 return;
8192 }
8193
9360ffd1
DM		 8194 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8195 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8196 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8197 goto nla_put_failure;
e5497d76
JB		 8198
8199 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8200 if (!rekey_attr)
8201 goto nla_put_failure;
8202
9360ffd1
DM		 8203 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8204 NL80211_REPLAY_CTR_LEN, replay_ctr))
8205 goto nla_put_failure;
e5497d76
JB		 8206
8207 nla_nest_end(msg, rekey_attr);
8208
3b7b72ee 8209 genlmsg_end(msg, hdr);
e5497d76
JB		 8210
8211 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8212 nl80211_mlme_mcgrp.id, gfp);
8213 return;
8214
8215 nla_put_failure:
8216 genlmsg_cancel(msg, hdr);
8217 nlmsg_free(msg);
8218}
8219
c9df56b4
JM		 8220void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8221 struct net_device *netdev, int index,
8222 const u8 *bssid, bool preauth, gfp_t gfp)
8223{
8224 struct sk_buff *msg;
8225 struct nlattr *attr;
8226 void *hdr;
8227
8228 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8229 if (!msg)
8230 return;
8231
8232 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8233 if (!hdr) {
8234 nlmsg_free(msg);
8235 return;
8236 }
8237
9360ffd1
DM		 8238 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8239 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8240 goto nla_put_failure;
c9df56b4
JM		 8241
8242 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8243 if (!attr)
8244 goto nla_put_failure;
8245
9360ffd1
DM		 8246 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8247 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8248 (preauth &&
8249 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8250 goto nla_put_failure;
c9df56b4
JM		 8251
8252 nla_nest_end(msg, attr);
8253
3b7b72ee 8254 genlmsg_end(msg, hdr);
c9df56b4
JM		 8255
8256 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8257 nl80211_mlme_mcgrp.id, gfp);
8258 return;
8259
8260 nla_put_failure:
8261 genlmsg_cancel(msg, hdr);
8262 nlmsg_free(msg);
8263}
8264
5314526b
TP		 8265void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8266 struct net_device *netdev, int freq,
8267 enum nl80211_channel_type type, gfp_t gfp)
8268{
8269 struct sk_buff *msg;
8270 void *hdr;
8271
8272 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8273 if (!msg)
8274 return;
8275
8276 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8277 if (!hdr) {
8278 nlmsg_free(msg);
8279 return;
8280 }
8281
7eab0f64
JL		 8282 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8283 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8284 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8285 goto nla_put_failure;
5314526b
TP		 8286
8287 genlmsg_end(msg, hdr);
8288
8289 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8290 nl80211_mlme_mcgrp.id, gfp);
8291 return;
8292
8293 nla_put_failure:
8294 genlmsg_cancel(msg, hdr);
8295 nlmsg_free(msg);
8296}
8297
c063dbf5
JB		 8298void
8299nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8300 struct net_device *netdev, const u8 *peer,
8301 u32 num_packets, gfp_t gfp)
8302{
8303 struct sk_buff *msg;
8304 struct nlattr *pinfoattr;
8305 void *hdr;
8306
8307 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8308 if (!msg)
8309 return;
8310
8311 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8312 if (!hdr) {
8313 nlmsg_free(msg);
8314 return;
8315 }
8316
9360ffd1
DM		 8317 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8318 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8319 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8320 goto nla_put_failure;
c063dbf5
JB		 8321
8322 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8323 if (!pinfoattr)
8324 goto nla_put_failure;
8325
9360ffd1
DM		 8326 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8327 goto nla_put_failure;
c063dbf5
JB		 8328
8329 nla_nest_end(msg, pinfoattr);
8330
3b7b72ee 8331 genlmsg_end(msg, hdr);
c063dbf5
JB		 8332
8333 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8334 nl80211_mlme_mcgrp.id, gfp);
8335 return;
8336
8337 nla_put_failure:
8338 genlmsg_cancel(msg, hdr);
8339 nlmsg_free(msg);
8340}
8341
7f6cf311
JB		 8342void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8343 u64 cookie, bool acked, gfp_t gfp)
8344{
8345 struct wireless_dev *wdev = dev->ieee80211_ptr;
8346 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8347 struct sk_buff *msg;
8348 void *hdr;
8349 int err;
8350
8351 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8352 if (!msg)
8353 return;
8354
8355 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8356 if (!hdr) {
8357 nlmsg_free(msg);
8358 return;
8359 }
8360
9360ffd1
DM		 8361 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8362 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8363 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8364 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8365 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8366 goto nla_put_failure;
7f6cf311
JB		 8367
8368 err = genlmsg_end(msg, hdr);
8369 if (err < 0) {
8370 nlmsg_free(msg);
8371 return;
8372 }
8373
8374 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8375 nl80211_mlme_mcgrp.id, gfp);
8376 return;
8377
8378 nla_put_failure:
8379 genlmsg_cancel(msg, hdr);
8380 nlmsg_free(msg);
8381}
8382EXPORT_SYMBOL(cfg80211_probe_status);
8383
5e760230
JB		 8384void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8385 const u8 *frame, size_t len,
804483e9 8386 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8387{
8388 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8389 struct sk_buff *msg;
8390 void *hdr;
8391 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8392
8393 if (!nlpid)
8394 return;
8395
8396 msg = nlmsg_new(len + 100, gfp);
8397 if (!msg)
8398 return;
8399
8400 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8401 if (!hdr) {
8402 nlmsg_free(msg);
8403 return;
8404 }
8405
9360ffd1
DM		 8406 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8407 (freq &&
8408 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8409 (sig_dbm &&
8410 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8411 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8412 goto nla_put_failure;
5e760230
JB		 8413
8414 genlmsg_end(msg, hdr);
8415
8416 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8417 return;
8418
8419 nla_put_failure:
8420 genlmsg_cancel(msg, hdr);
8421 nlmsg_free(msg);
8422}
8423EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8424
026331c4
JM		 8425static int nl80211_netlink_notify(struct notifier_block * nb,
8426 unsigned long state,
8427 void *_notify)
8428{
8429 struct netlink_notify *notify = _notify;
8430 struct cfg80211_registered_device *rdev;
8431 struct wireless_dev *wdev;
8432
8433 if (state != NETLINK_URELEASE)
8434 return NOTIFY_DONE;
8435
8436 rcu_read_lock();
8437
5e760230 8438 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 8439 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 8440 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8441 if (rdev->ap_beacons_nlpid == notify->pid)
8442 rdev->ap_beacons_nlpid = 0;
8443 }
026331c4
JM		 8444
8445 rcu_read_unlock();
8446
8447 return NOTIFY_DONE;
8448}
8449
8450static struct notifier_block nl80211_netlink_notifier = {
8451 .notifier_call = nl80211_netlink_notify,
8452};
8453
55682965
JB		 8454/* initialisation/exit functions */
8455
8456int nl80211_init(void)
8457{
0d63cbb5 8458 int err;
55682965 8459
0d63cbb5
MM		 8460 err = genl_register_family_with_ops(&nl80211_fam,
8461 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8462 if (err)
8463 return err;
8464
55682965
JB		 8465 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8466 if (err)
8467 goto err_out;
8468
2a519311
JB		 8469 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8470 if (err)
8471 goto err_out;
8472
73d54c9e
LR		 8473 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8474 if (err)
8475 goto err_out;
8476
6039f6d2
JM		 8477 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8478 if (err)
8479 goto err_out;
8480
aff89a9b
JB		 8481#ifdef CONFIG_NL80211_TESTMODE
8482 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8483 if (err)
8484 goto err_out;
8485#endif
8486
026331c4
JM		 8487 err = netlink_register_notifier(&nl80211_netlink_notifier);
8488 if (err)
8489 goto err_out;
8490
55682965
JB		 8491 return 0;
8492 err_out:
8493 genl_unregister_family(&nl80211_fam);
8494 return err;
8495}
8496
8497void nl80211_exit(void)
8498{
026331c4 8499 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8500 genl_unregister_family(&nl80211_fam);
8501}
Linux kernel - Deliverables
This page took 1.021193 seconds and 5 git commands to generate.