]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211-hwsim: remove unnecessary hwname check
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
8cd4d456 212static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 391 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
55682965
JB		 399};
400
e31b8213 401/* policy for the key attributes */
b54452b0 402static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 403 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 404 [NL80211_KEY_IDX] = { .type = NLA_U8 },
405 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 406 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 407 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
408 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 409 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 410 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
411};
412
413/* policy for the key default flags */
414static const struct nla_policy
415nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
416 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
417 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 418};
419
ff1b6e69
JB		 420/* policy for WoWLAN attributes */
421static const struct nla_policy
422nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
423 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
426 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 427 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 431 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 432 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 433};
434
435static const struct nla_policy
436nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
437 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
438 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
440 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
441 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
442 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
443 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
444 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
445 },
446 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
447 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
448 },
449 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
450 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
451 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 452};
453
be29b99a
AK		 454/* policy for coalesce rule attributes */
455static const struct nla_policy
456nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
457 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
458 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
459 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
460};
461
e5497d76
JB		 462/* policy for GTK rekey offload attributes */
463static const struct nla_policy
464nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
465 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
466 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
467 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
468};
469
a1f1c21c
LC		 470static const struct nla_policy
471nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 472 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 473 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 474 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 475};
476
97990a06
JB		 477static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
478 struct netlink_callback *cb,
479 struct cfg80211_registered_device **rdev,
480 struct wireless_dev **wdev)
a043897a 481{
97990a06 482 int err;
a043897a 483
97990a06 484 rtnl_lock();
a043897a 485
97990a06
JB		 486 if (!cb->args[0]) {
487 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
488 nl80211_fam.attrbuf, nl80211_fam.maxattr,
489 nl80211_policy);
490 if (err)
491 goto out_unlock;
67748893 492
97990a06
JB		 493 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
494 nl80211_fam.attrbuf);
495 if (IS_ERR(*wdev)) {
496 err = PTR_ERR(*wdev);
497 goto out_unlock;
498 }
f26cbf40 499 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 500 /* 0 is the first index - add 1 to parse only once */
501 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 502 cb->args[1] = (*wdev)->identifier;
503 } else {
c319d50b
JB		 504 /* subtract the 1 again here */
505 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 506 struct wireless_dev *tmp;
67748893 507
97990a06
JB		 508 if (!wiphy) {
509 err = -ENODEV;
510 goto out_unlock;
511 }
f26cbf40 512 *rdev = wiphy_to_rdev(wiphy);
97990a06 513 *wdev = NULL;
67748893 514
97990a06
JB		 515 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
516 if (tmp->identifier == cb->args[1]) {
517 *wdev = tmp;
518 break;
519 }
520 }
67748893 521
97990a06
JB		 522 if (!*wdev) {
523 err = -ENODEV;
524 goto out_unlock;
525 }
67748893
JB		 526 }
527
67748893 528 return 0;
97990a06 529 out_unlock:
67748893
JB		 530 rtnl_unlock();
531 return err;
532}
533
97990a06 534static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 535{
67748893
JB		 536 rtnl_unlock();
537}
538
f4a11bb0
JB		 539/* IE validation */
540static bool is_valid_ie_attr(const struct nlattr *attr)
541{
542 const u8 *pos;
543 int len;
544
545 if (!attr)
546 return true;
547
548 pos = nla_data(attr);
549 len = nla_len(attr);
550
551 while (len) {
552 u8 elemlen;
553
554 if (len < 2)
555 return false;
556 len -= 2;
557
558 elemlen = pos[1];
559 if (elemlen > len)
560 return false;
561
562 len -= elemlen;
563 pos += 2 + elemlen;
564 }
565
566 return true;
567}
568
55682965 569/* message building helper */
15e47304 570static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 571 int flags, u8 cmd)
572{
573 /* since there is no private header just add the generic one */
15e47304 574 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 575}
576
5dab3b8a 577static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 578 struct ieee80211_channel *chan,
579 bool large)
5dab3b8a 580{
ea077c1c
RL		 581 /* Some channels must be completely excluded from the
582 * list to protect old user-space tools from breaking
583 */
584 if (!large && chan->flags &
585 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
586 return 0;
587
9360ffd1
DM		 588 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
589 chan->center_freq))
590 goto nla_put_failure;
5dab3b8a 591
9360ffd1
DM		 592 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
593 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
594 goto nla_put_failure;
8fe02e16
LR		 595 if (chan->flags & IEEE80211_CHAN_NO_IR) {
596 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
597 goto nla_put_failure;
598 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
599 goto nla_put_failure;
600 }
cdc89b97
JB		 601 if (chan->flags & IEEE80211_CHAN_RADAR) {
602 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
603 goto nla_put_failure;
604 if (large) {
605 u32 time;
606
607 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
608
609 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
610 chan->dfs_state))
611 goto nla_put_failure;
612 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
613 time))
614 goto nla_put_failure;
089027e5
JD		 615 if (nla_put_u32(msg,
616 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
617 chan->dfs_cac_ms))
618 goto nla_put_failure;
cdc89b97
JB		 619 }
620 }
5dab3b8a 621
fe1abafd
JB		 622 if (large) {
623 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
624 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
625 goto nla_put_failure;
626 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
627 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
628 goto nla_put_failure;
629 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
630 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
631 goto nla_put_failure;
632 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
633 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
634 goto nla_put_failure;
570dbde1
DS		 635 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
637 goto nla_put_failure;
638 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
639 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
640 goto nla_put_failure;
ea077c1c
RL		 641 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
643 goto nla_put_failure;
644 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
645 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
646 goto nla_put_failure;
fe1abafd
JB		 647 }
648
9360ffd1
DM		 649 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
650 DBM_TO_MBM(chan->max_power)))
651 goto nla_put_failure;
5dab3b8a
LR		 652
653 return 0;
654
655 nla_put_failure:
656 return -ENOBUFS;
657}
658
55682965
JB		 659/* netlink command implementations */
660
b9454e83
JB		 661struct key_parse {
662 struct key_params p;
663 int idx;
e31b8213 664 int type;
b9454e83 665 bool def, defmgmt;
dbd2fd65 666 bool def_uni, def_multi;
b9454e83
JB		 667};
668
669static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
670{
671 struct nlattr *tb[NL80211_KEY_MAX + 1];
672 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
673 nl80211_key_policy);
674 if (err)
675 return err;
676
677 k->def = !!tb[NL80211_KEY_DEFAULT];
678 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
679
dbd2fd65
JB		 680 if (k->def) {
681 k->def_uni = true;
682 k->def_multi = true;
683 }
684 if (k->defmgmt)
685 k->def_multi = true;
686
b9454e83
JB		 687 if (tb[NL80211_KEY_IDX])
688 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
689
690 if (tb[NL80211_KEY_DATA]) {
691 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
692 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
693 }
694
695 if (tb[NL80211_KEY_SEQ]) {
696 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
697 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
698 }
699
700 if (tb[NL80211_KEY_CIPHER])
701 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
702
e31b8213
JB		 703 if (tb[NL80211_KEY_TYPE]) {
704 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
705 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
706 return -EINVAL;
707 }
708
dbd2fd65
JB		 709 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
710 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 711 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
712 tb[NL80211_KEY_DEFAULT_TYPES],
713 nl80211_key_default_policy);
dbd2fd65
JB		 714 if (err)
715 return err;
716
717 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
718 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
719 }
720
b9454e83
JB		 721 return 0;
722}
723
724static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
725{
726 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
727 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
728 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
729 }
730
731 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
732 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
733 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
734 }
735
736 if (info->attrs[NL80211_ATTR_KEY_IDX])
737 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
738
739 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
740 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
741
742 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
743 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
744
dbd2fd65
JB		 745 if (k->def) {
746 k->def_uni = true;
747 k->def_multi = true;
748 }
749 if (k->defmgmt)
750 k->def_multi = true;
751
e31b8213
JB		 752 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
753 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
754 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
755 return -EINVAL;
756 }
757
dbd2fd65
JB		 758 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
759 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
760 int err = nla_parse_nested(
761 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
762 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
763 nl80211_key_default_policy);
764 if (err)
765 return err;
766
767 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
768 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
769 }
770
b9454e83
JB		 771 return 0;
772}
773
774static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
775{
776 int err;
777
778 memset(k, 0, sizeof(*k));
779 k->idx = -1;
e31b8213 780 k->type = -1;
b9454e83
JB		 781
782 if (info->attrs[NL80211_ATTR_KEY])
783 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
784 else
785 err = nl80211_parse_key_old(info, k);
786
787 if (err)
788 return err;
789
790 if (k->def && k->defmgmt)
791 return -EINVAL;
792
dbd2fd65
JB		 793 if (k->defmgmt) {
794 if (k->def_uni || !k->def_multi)
795 return -EINVAL;
796 }
797
b9454e83
JB		 798 if (k->idx != -1) {
799 if (k->defmgmt) {
800 if (k->idx < 4 || k->idx > 5)
801 return -EINVAL;
802 } else if (k->def) {
803 if (k->idx < 0 || k->idx > 3)
804 return -EINVAL;
805 } else {
806 if (k->idx < 0 || k->idx > 5)
807 return -EINVAL;
808 }
809 }
810
811 return 0;
812}
813
fffd0934
JB		 814static struct cfg80211_cached_keys *
815nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 816 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 817{
818 struct key_parse parse;
819 struct nlattr *key;
820 struct cfg80211_cached_keys *result;
821 int rem, err, def = 0;
822
823 result = kzalloc(sizeof(*result), GFP_KERNEL);
824 if (!result)
825 return ERR_PTR(-ENOMEM);
826
827 result->def = -1;
828 result->defmgmt = -1;
829
830 nla_for_each_nested(key, keys, rem) {
831 memset(&parse, 0, sizeof(parse));
832 parse.idx = -1;
833
834 err = nl80211_parse_key_new(key, &parse);
835 if (err)
836 goto error;
837 err = -EINVAL;
838 if (!parse.p.key)
839 goto error;
840 if (parse.idx < 0 || parse.idx > 4)
841 goto error;
842 if (parse.def) {
843 if (def)
844 goto error;
845 def = 1;
846 result->def = parse.idx;
dbd2fd65
JB		 847 if (!parse.def_uni || !parse.def_multi)
848 goto error;
fffd0934
JB		 849 } else if (parse.defmgmt)
850 goto error;
851 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 852 parse.idx, false, NULL);
fffd0934
JB		 853 if (err)
854 goto error;
855 result->params[parse.idx].cipher = parse.p.cipher;
856 result->params[parse.idx].key_len = parse.p.key_len;
857 result->params[parse.idx].key = result->data[parse.idx];
858 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 859
860 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
861 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
862 if (no_ht)
863 *no_ht = true;
864 }
fffd0934
JB		 865 }
866
867 return result;
868 error:
869 kfree(result);
870 return ERR_PTR(err);
871}
872
873static int nl80211_key_allowed(struct wireless_dev *wdev)
874{
875 ASSERT_WDEV_LOCK(wdev);
876
fffd0934
JB		 877 switch (wdev->iftype) {
878 case NL80211_IFTYPE_AP:
879 case NL80211_IFTYPE_AP_VLAN:
074ac8df 880 case NL80211_IFTYPE_P2P_GO:
ff973af7 881 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 882 break;
883 case NL80211_IFTYPE_ADHOC:
fffd0934 884 case NL80211_IFTYPE_STATION:
074ac8df 885 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 886 if (!wdev->current_bss)
fffd0934
JB		 887 return -ENOLINK;
888 break;
de4fcbad 889 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 890 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 891 case NL80211_IFTYPE_MONITOR:
892 case NL80211_IFTYPE_P2P_DEVICE:
893 case NL80211_IFTYPE_WDS:
894 case NUM_NL80211_IFTYPES:
fffd0934
JB		 895 return -EINVAL;
896 }
897
898 return 0;
899}
900
664834de
JM		 901static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
902 struct nlattr *tb)
903{
904 struct ieee80211_channel *chan;
905
906 if (tb == NULL)
907 return NULL;
908 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
909 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
910 return NULL;
911 return chan;
912}
913
7527a782
JB		 914static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
915{
916 struct nlattr *nl_modes = nla_nest_start(msg, attr);
917 int i;
918
919 if (!nl_modes)
920 goto nla_put_failure;
921
922 i = 0;
923 while (ifmodes) {
9360ffd1
DM		 924 if ((ifmodes & 1) && nla_put_flag(msg, i))
925 goto nla_put_failure;
7527a782
JB		 926 ifmodes >>= 1;
927 i++;
928 }
929
930 nla_nest_end(msg, nl_modes);
931 return 0;
932
933nla_put_failure:
934 return -ENOBUFS;
935}
936
937static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 938 struct sk_buff *msg,
939 bool large)
7527a782
JB		 940{
941 struct nlattr *nl_combis;
942 int i, j;
943
944 nl_combis = nla_nest_start(msg,
945 NL80211_ATTR_INTERFACE_COMBINATIONS);
946 if (!nl_combis)
947 goto nla_put_failure;
948
949 for (i = 0; i < wiphy->n_iface_combinations; i++) {
950 const struct ieee80211_iface_combination *c;
951 struct nlattr *nl_combi, *nl_limits;
952
953 c = &wiphy->iface_combinations[i];
954
955 nl_combi = nla_nest_start(msg, i + 1);
956 if (!nl_combi)
957 goto nla_put_failure;
958
959 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
960 if (!nl_limits)
961 goto nla_put_failure;
962
963 for (j = 0; j < c->n_limits; j++) {
964 struct nlattr *nl_limit;
965
966 nl_limit = nla_nest_start(msg, j + 1);
967 if (!nl_limit)
968 goto nla_put_failure;
9360ffd1
DM		 969 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
970 c->limits[j].max))
971 goto nla_put_failure;
7527a782
JB		 972 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
973 c->limits[j].types))
974 goto nla_put_failure;
975 nla_nest_end(msg, nl_limit);
976 }
977
978 nla_nest_end(msg, nl_limits);
979
9360ffd1
DM		 980 if (c->beacon_int_infra_match &&
981 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
982 goto nla_put_failure;
983 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
984 c->num_different_channels) ||
985 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
986 c->max_interfaces))
987 goto nla_put_failure;
cdc89b97 988 if (large &&
8c48b50a
FF		 989 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
990 c->radar_detect_widths) ||
991 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
992 c->radar_detect_regions)))
cdc89b97 993 goto nla_put_failure;
7527a782
JB		 994
995 nla_nest_end(msg, nl_combi);
996 }
997
998 nla_nest_end(msg, nl_combis);
999
1000 return 0;
1001nla_put_failure:
1002 return -ENOBUFS;
1003}
1004
3713b4e3 1005#ifdef CONFIG_PM
b56cf720
JB		 1006static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1007 struct sk_buff *msg)
1008{
964dc9e2 1009 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1010 struct nlattr *nl_tcp;
1011
1012 if (!tcp)
1013 return 0;
1014
1015 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1016 if (!nl_tcp)
1017 return -ENOBUFS;
1018
1019 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1020 tcp->data_payload_max))
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1024 tcp->data_payload_max))
1025 return -ENOBUFS;
1026
1027 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1028 return -ENOBUFS;
1029
1030 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1031 sizeof(*tcp->tok), tcp->tok))
1032 return -ENOBUFS;
1033
1034 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1035 tcp->data_interval_max))
1036 return -ENOBUFS;
1037
1038 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1039 tcp->wake_payload_max))
1040 return -ENOBUFS;
1041
1042 nla_nest_end(msg, nl_tcp);
1043 return 0;
1044}
1045
3713b4e3 1046static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1047 struct cfg80211_registered_device *rdev,
b56cf720 1048 bool large)
55682965 1049{
3713b4e3 1050 struct nlattr *nl_wowlan;
55682965 1051
1b8ec87a 1052 if (!rdev->wiphy.wowlan)
3713b4e3 1053 return 0;
55682965 1054
3713b4e3
JB		 1055 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1056 if (!nl_wowlan)
1057 return -ENOBUFS;
9360ffd1 1058
1b8ec87a 1059 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1061 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1062 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1063 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1075 return -ENOBUFS;
9360ffd1 1076
1b8ec87a 1077 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1078 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1079 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1080 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1081 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1082 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1083 };
9360ffd1 1084
3713b4e3
JB		 1085 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1086 sizeof(pat), &pat))
1087 return -ENOBUFS;
1088 }
9360ffd1 1089
1b8ec87a 1090 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1091 return -ENOBUFS;
1092
8cd4d456
LC		 1093 /* TODO: send wowlan net detect */
1094
3713b4e3 1095 nla_nest_end(msg, nl_wowlan);
9360ffd1 1096
3713b4e3
JB		 1097 return 0;
1098}
1099#endif
9360ffd1 1100
be29b99a 1101static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1102 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1103{
1104 struct nl80211_coalesce_rule_support rule;
1105
1b8ec87a 1106 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1107 return 0;
1108
1b8ec87a
ZG		 1109 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1110 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1111 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1112 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1113 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1114 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1115
1116 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1117 return -ENOBUFS;
1118
1119 return 0;
1120}
1121
3713b4e3
JB		 1122static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1123 struct ieee80211_supported_band *sband)
1124{
1125 struct nlattr *nl_rates, *nl_rate;
1126 struct ieee80211_rate *rate;
1127 int i;
87bbbe22 1128
3713b4e3
JB		 1129 /* add HT info */
1130 if (sband->ht_cap.ht_supported &&
1131 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1132 sizeof(sband->ht_cap.mcs),
1133 &sband->ht_cap.mcs) ||
1134 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1135 sband->ht_cap.cap) ||
1136 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1137 sband->ht_cap.ampdu_factor) ||
1138 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1139 sband->ht_cap.ampdu_density)))
1140 return -ENOBUFS;
afe0cbf8 1141
3713b4e3
JB		 1142 /* add VHT info */
1143 if (sband->vht_cap.vht_supported &&
1144 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1145 sizeof(sband->vht_cap.vht_mcs),
1146 &sband->vht_cap.vht_mcs) ||
1147 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1148 sband->vht_cap.cap)))
1149 return -ENOBUFS;
f59ac048 1150
3713b4e3
JB		 1151 /* add bitrates */
1152 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1153 if (!nl_rates)
1154 return -ENOBUFS;
ee688b00 1155
3713b4e3
JB		 1156 for (i = 0; i < sband->n_bitrates; i++) {
1157 nl_rate = nla_nest_start(msg, i);
1158 if (!nl_rate)
1159 return -ENOBUFS;
ee688b00 1160
3713b4e3
JB		 1161 rate = &sband->bitrates[i];
1162 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1163 rate->bitrate))
1164 return -ENOBUFS;
1165 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1166 nla_put_flag(msg,
1167 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1168 return -ENOBUFS;
ee688b00 1169
3713b4e3
JB		 1170 nla_nest_end(msg, nl_rate);
1171 }
d51626df 1172
3713b4e3 1173 nla_nest_end(msg, nl_rates);
bf0c111e 1174
3713b4e3
JB		 1175 return 0;
1176}
ee688b00 1177
3713b4e3
JB		 1178static int
1179nl80211_send_mgmt_stypes(struct sk_buff *msg,
1180 const struct ieee80211_txrx_stypes *mgmt_stypes)
1181{
1182 u16 stypes;
1183 struct nlattr *nl_ftypes, *nl_ifs;
1184 enum nl80211_iftype ift;
1185 int i;
ee688b00 1186
3713b4e3
JB		 1187 if (!mgmt_stypes)
1188 return 0;
5dab3b8a 1189
3713b4e3
JB		 1190 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1191 if (!nl_ifs)
1192 return -ENOBUFS;
e2f367f2 1193
3713b4e3
JB		 1194 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1195 nl_ftypes = nla_nest_start(msg, ift);
1196 if (!nl_ftypes)
1197 return -ENOBUFS;
1198 i = 0;
1199 stypes = mgmt_stypes[ift].tx;
1200 while (stypes) {
1201 if ((stypes & 1) &&
1202 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1203 (i << 4) | IEEE80211_FTYPE_MGMT))
1204 return -ENOBUFS;
1205 stypes >>= 1;
1206 i++;
ee688b00 1207 }
3713b4e3
JB		 1208 nla_nest_end(msg, nl_ftypes);
1209 }
ee688b00 1210
3713b4e3 1211 nla_nest_end(msg, nl_ifs);
ee688b00 1212
3713b4e3
JB		 1213 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1214 if (!nl_ifs)
1215 return -ENOBUFS;
ee688b00 1216
3713b4e3
JB		 1217 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1218 nl_ftypes = nla_nest_start(msg, ift);
1219 if (!nl_ftypes)
1220 return -ENOBUFS;
1221 i = 0;
1222 stypes = mgmt_stypes[ift].rx;
1223 while (stypes) {
1224 if ((stypes & 1) &&
1225 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1226 (i << 4) | IEEE80211_FTYPE_MGMT))
1227 return -ENOBUFS;
1228 stypes >>= 1;
1229 i++;
1230 }
1231 nla_nest_end(msg, nl_ftypes);
1232 }
1233 nla_nest_end(msg, nl_ifs);
ee688b00 1234
3713b4e3
JB		 1235 return 0;
1236}
ee688b00 1237
86e8cf98
JB		 1238struct nl80211_dump_wiphy_state {
1239 s64 filter_wiphy;
1240 long start;
1241 long split_start, band_start, chan_start;
1242 bool split;
1243};
1244
1b8ec87a 1245static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1246 enum nl80211_commands cmd,
3713b4e3 1247 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1248 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1249{
1250 void *hdr;
1251 struct nlattr *nl_bands, *nl_band;
1252 struct nlattr *nl_freqs, *nl_freq;
1253 struct nlattr *nl_cmds;
1254 enum ieee80211_band band;
1255 struct ieee80211_channel *chan;
1256 int i;
1257 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1258 rdev->wiphy.mgmt_stypes;
fe1abafd 1259 u32 features;
ee688b00 1260
3bb20556 1261 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1262 if (!hdr)
1263 return -ENOBUFS;
ee688b00 1264
86e8cf98
JB		 1265 if (WARN_ON(!state))
1266 return -EINVAL;
ee688b00 1267
1b8ec87a 1268 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1269 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1270 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1271 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1272 cfg80211_rdev_list_generation))
8fdc621d
JB		 1273 goto nla_put_failure;
1274
3bb20556
JB		 1275 if (cmd != NL80211_CMD_NEW_WIPHY)
1276 goto finish;
1277
86e8cf98 1278 switch (state->split_start) {
3713b4e3
JB		 1279 case 0:
1280 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1281 rdev->wiphy.retry_short) ||
3713b4e3 1282 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1283 rdev->wiphy.retry_long) ||
3713b4e3 1284 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1285 rdev->wiphy.frag_threshold) ||
3713b4e3 1286 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1287 rdev->wiphy.rts_threshold) ||
3713b4e3 1288 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1289 rdev->wiphy.coverage_class) ||
3713b4e3 1290 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1291 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1292 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1293 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1294 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1295 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1296 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1297 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1298 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1299 rdev->wiphy.max_match_sets))
9360ffd1 1300 goto nla_put_failure;
3713b4e3 1301
1b8ec87a 1302 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1303 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1304 goto nla_put_failure;
1b8ec87a 1305 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1306 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1307 goto nla_put_failure;
1b8ec87a 1308 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1309 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1310 goto nla_put_failure;
1b8ec87a 1311 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1312 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1313 goto nla_put_failure;
1b8ec87a 1314 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1315 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1316 goto nla_put_failure;
1b8ec87a 1317 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1318 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1319 goto nla_put_failure;
86e8cf98
JB		 1320 state->split_start++;
1321 if (state->split)
3713b4e3
JB		 1322 break;
1323 case 1:
1324 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1325 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1326 rdev->wiphy.cipher_suites))
3713b4e3 1327 goto nla_put_failure;
4745fc09 1328
3713b4e3 1329 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1330 rdev->wiphy.max_num_pmkids))
3713b4e3 1331 goto nla_put_failure;
b23aa676 1332
1b8ec87a 1333 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1334 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1335 goto nla_put_failure;
b23aa676 1336
3713b4e3 1337 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1338 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1339 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1340 rdev->wiphy.available_antennas_rx))
9360ffd1 1341 goto nla_put_failure;
b23aa676 1342
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1344 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1345 rdev->wiphy.probe_resp_offload))
3713b4e3 1346 goto nla_put_failure;
8fdc621d 1347
1b8ec87a
ZG		 1348 if ((rdev->wiphy.available_antennas_tx ||
1349 rdev->wiphy.available_antennas_rx) &&
1350 rdev->ops->get_antenna) {
3713b4e3
JB		 1351 u32 tx_ant = 0, rx_ant = 0;
1352 int res;
1b8ec87a 1353 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1354 if (!res) {
1355 if (nla_put_u32(msg,
1356 NL80211_ATTR_WIPHY_ANTENNA_TX,
1357 tx_ant) ||
1358 nla_put_u32(msg,
1359 NL80211_ATTR_WIPHY_ANTENNA_RX,
1360 rx_ant))
1361 goto nla_put_failure;
1362 }
1363 }
a293911d 1364
86e8cf98
JB		 1365 state->split_start++;
1366 if (state->split)
3713b4e3
JB		 1367 break;
1368 case 2:
1369 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1370 rdev->wiphy.interface_modes))
3713b4e3 1371 goto nla_put_failure;
86e8cf98
JB		 1372 state->split_start++;
1373 if (state->split)
3713b4e3
JB		 1374 break;
1375 case 3:
1376 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1377 if (!nl_bands)
1378 goto nla_put_failure;
f7ca38df 1379
86e8cf98
JB		 1380 for (band = state->band_start;
1381 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1382 struct ieee80211_supported_band *sband;
2e161f78 1383
1b8ec87a 1384 sband = rdev->wiphy.bands[band];
2e161f78 1385
3713b4e3
JB		 1386 if (!sband)
1387 continue;
1388
1389 nl_band = nla_nest_start(msg, band);
1390 if (!nl_band)
2e161f78 1391 goto nla_put_failure;
3713b4e3 1392
86e8cf98 1393 switch (state->chan_start) {
3713b4e3
JB		 1394 case 0:
1395 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1396 goto nla_put_failure;
86e8cf98
JB		 1397 state->chan_start++;
1398 if (state->split)
3713b4e3
JB		 1399 break;
1400 default:
1401 /* add frequencies */
1402 nl_freqs = nla_nest_start(
1403 msg, NL80211_BAND_ATTR_FREQS);
1404 if (!nl_freqs)
1405 goto nla_put_failure;
1406
86e8cf98 1407 for (i = state->chan_start - 1;
3713b4e3
JB		 1408 i < sband->n_channels;
1409 i++) {
1410 nl_freq = nla_nest_start(msg, i);
1411 if (!nl_freq)
1412 goto nla_put_failure;
1413
1414 chan = &sband->channels[i];
1415
86e8cf98
JB		 1416 if (nl80211_msg_put_channel(
1417 msg, chan,
1418 state->split))
3713b4e3
JB		 1419 goto nla_put_failure;
1420
1421 nla_nest_end(msg, nl_freq);
86e8cf98 1422 if (state->split)
3713b4e3
JB		 1423 break;
1424 }
1425 if (i < sband->n_channels)
86e8cf98 1426 state->chan_start = i + 2;
3713b4e3 1427 else
86e8cf98 1428 state->chan_start = 0;
3713b4e3
JB		 1429 nla_nest_end(msg, nl_freqs);
1430 }
1431
1432 nla_nest_end(msg, nl_band);
1433
86e8cf98 1434 if (state->split) {
3713b4e3 1435 /* start again here */
86e8cf98 1436 if (state->chan_start)
3713b4e3
JB		 1437 band--;
1438 break;
2e161f78 1439 }
2e161f78 1440 }
3713b4e3 1441 nla_nest_end(msg, nl_bands);
2e161f78 1442
3713b4e3 1443 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1444 state->band_start = band + 1;
3713b4e3 1445 else
86e8cf98 1446 state->band_start = 0;
74b70a4e 1447
3713b4e3 1448 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1449 if (state->band_start == 0 && state->chan_start == 0)
1450 state->split_start++;
1451 if (state->split)
3713b4e3
JB		 1452 break;
1453 case 4:
1454 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1455 if (!nl_cmds)
2e161f78
JB		 1456 goto nla_put_failure;
1457
3713b4e3
JB		 1458 i = 0;
1459#define CMD(op, n) \
1460 do { \
1b8ec87a 1461 if (rdev->ops->op) { \
3713b4e3
JB		 1462 i++; \
1463 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1464 goto nla_put_failure; \
1465 } \
1466 } while (0)
1467
1468 CMD(add_virtual_intf, NEW_INTERFACE);
1469 CMD(change_virtual_intf, SET_INTERFACE);
1470 CMD(add_key, NEW_KEY);
1471 CMD(start_ap, START_AP);
1472 CMD(add_station, NEW_STATION);
1473 CMD(add_mpath, NEW_MPATH);
1474 CMD(update_mesh_config, SET_MESH_CONFIG);
1475 CMD(change_bss, SET_BSS);
1476 CMD(auth, AUTHENTICATE);
1477 CMD(assoc, ASSOCIATE);
1478 CMD(deauth, DEAUTHENTICATE);
1479 CMD(disassoc, DISASSOCIATE);
1480 CMD(join_ibss, JOIN_IBSS);
1481 CMD(join_mesh, JOIN_MESH);
1482 CMD(set_pmksa, SET_PMKSA);
1483 CMD(del_pmksa, DEL_PMKSA);
1484 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1485 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1486 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1487 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1488 CMD(mgmt_tx, FRAME);
1489 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1490 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1491 i++;
1492 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1493 goto nla_put_failure;
2e161f78 1494 }
1b8ec87a
ZG		 1495 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1496 rdev->ops->join_mesh) {
3713b4e3
JB		 1497 i++;
1498 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1499 goto nla_put_failure;
1500 }
1501 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1502 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1503 CMD(tdls_mgmt, TDLS_MGMT);
1504 CMD(tdls_oper, TDLS_OPER);
1505 }
1b8ec87a 1506 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1507 CMD(sched_scan_start, START_SCHED_SCAN);
1508 CMD(probe_client, PROBE_CLIENT);
1509 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1510 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1511 i++;
1512 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1513 goto nla_put_failure;
1514 }
1515 CMD(start_p2p_device, START_P2P_DEVICE);
1516 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1517#ifdef CONFIG_NL80211_TESTMODE
1518 CMD(testmode_cmd, TESTMODE);
1519#endif
86e8cf98 1520 if (state->split) {
5de17984
AS		 1521 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1522 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1523 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1524 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1525 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1526 if (rdev->wiphy.features &
1527 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1528 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1529 }
02df00eb 1530 /* add into the if now */
3713b4e3 1531#undef CMD
ff1b6e69 1532
1b8ec87a 1533 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1534 i++;
1535 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1536 goto nla_put_failure;
ff1b6e69
JB		 1537 }
1538
1b8ec87a 1539 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1540 i++;
1541 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1542 goto nla_put_failure;
1543 }
1544
1545 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1546 state->split_start++;
1547 if (state->split)
3713b4e3
JB		 1548 break;
1549 case 5:
1b8ec87a
ZG		 1550 if (rdev->ops->remain_on_channel &&
1551 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1552 nla_put_u32(msg,
1553 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1554 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1555 goto nla_put_failure;
1556
1b8ec87a 1557 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1558 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1559 goto nla_put_failure;
1560
1561 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1562 goto nla_put_failure;
86e8cf98
JB		 1563 state->split_start++;
1564 if (state->split)
3713b4e3
JB		 1565 break;
1566 case 6:
1567#ifdef CONFIG_PM
1b8ec87a 1568 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1569 goto nla_put_failure;
86e8cf98
JB		 1570 state->split_start++;
1571 if (state->split)
3713b4e3
JB		 1572 break;
1573#else
86e8cf98 1574 state->split_start++;
dfb89c56 1575#endif
3713b4e3
JB		 1576 case 7:
1577 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1578 rdev->wiphy.software_iftypes))
3713b4e3 1579 goto nla_put_failure;
ff1b6e69 1580
1b8ec87a 1581 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1582 state->split))
3713b4e3 1583 goto nla_put_failure;
7527a782 1584
86e8cf98
JB		 1585 state->split_start++;
1586 if (state->split)
3713b4e3
JB		 1587 break;
1588 case 8:
1b8ec87a 1589 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1590 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1591 rdev->wiphy.ap_sme_capa))
3713b4e3 1592 goto nla_put_failure;
7527a782 1593
1b8ec87a 1594 features = rdev->wiphy.features;
fe1abafd
JB		 1595 /*
1596 * We can only add the per-channel limit information if the
1597 * dump is split, otherwise it makes it too big. Therefore
1598 * only advertise it in that case.
1599 */
86e8cf98 1600 if (state->split)
fe1abafd
JB		 1601 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1602 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1603 goto nla_put_failure;
562a7480 1604
1b8ec87a 1605 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1606 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1607 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1608 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1609 goto nla_put_failure;
1f074bd8 1610
1b8ec87a
ZG		 1611 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1612 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1613 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1614 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1615 goto nla_put_failure;
7e7c8926 1616
3713b4e3
JB		 1617 /*
1618 * Any information below this point is only available to
1619 * applications that can deal with it being split. This
1620 * helps ensure that newly added capabilities don't break
1621 * older tools by overrunning their buffers.
1622 *
1623 * We still increment split_start so that in the split
1624 * case we'll continue with more data in the next round,
1625 * but break unconditionally so unsplit data stops here.
1626 */
86e8cf98 1627 state->split_start++;
3713b4e3
JB		 1628 break;
1629 case 9:
1b8ec87a 1630 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1631 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1632 rdev->wiphy.extended_capabilities_len,
1633 rdev->wiphy.extended_capabilities) ||
fe1abafd 1634 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1635 rdev->wiphy.extended_capabilities_len,
1636 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1637 goto nla_put_failure;
a50df0c4 1638
1b8ec87a 1639 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1640 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1641 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1642 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1643 goto nla_put_failure;
1644
be29b99a
AK		 1645 state->split_start++;
1646 break;
1647 case 10:
1b8ec87a 1648 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1649 goto nla_put_failure;
1650
1b8ec87a 1651 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1652 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1653 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1654 goto nla_put_failure;
b43504cf 1655
1b8ec87a 1656 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1657 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1658 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1659 goto nla_put_failure;
1660
ad7e718c
JB		 1661 state->split_start++;
1662 break;
1663 case 11:
1b8ec87a 1664 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1665 const struct nl80211_vendor_cmd_info *info;
1666 struct nlattr *nested;
1667
1668 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1669 if (!nested)
1670 goto nla_put_failure;
1671
1b8ec87a
ZG		 1672 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1673 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1674 if (nla_put(msg, i + 1, sizeof(*info), info))
1675 goto nla_put_failure;
1676 }
1677 nla_nest_end(msg, nested);
1678 }
1679
1b8ec87a 1680 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1681 const struct nl80211_vendor_cmd_info *info;
1682 struct nlattr *nested;
ad7e718c 1683
567ffc35
JB		 1684 nested = nla_nest_start(msg,
1685 NL80211_ATTR_VENDOR_EVENTS);
1686 if (!nested)
ad7e718c 1687 goto nla_put_failure;
567ffc35 1688
1b8ec87a
ZG		 1689 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1690 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1691 if (nla_put(msg, i + 1, sizeof(*info), info))
1692 goto nla_put_failure;
1693 }
1694 nla_nest_end(msg, nested);
1695 }
9a774c78
AO		 1696 state->split_start++;
1697 break;
1698 case 12:
1699 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1700 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1701 rdev->wiphy.max_num_csa_counters))
1702 goto nla_put_failure;
01e0daa4 1703
3713b4e3 1704 /* done */
86e8cf98 1705 state->split_start = 0;
3713b4e3
JB		 1706 break;
1707 }
3bb20556 1708 finish:
55682965
JB		 1709 return genlmsg_end(msg, hdr);
1710
1711 nla_put_failure:
bc3ed28c
TG		 1712 genlmsg_cancel(msg, hdr);
1713 return -EMSGSIZE;
55682965
JB		 1714}
1715
86e8cf98
JB		 1716static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1717 struct netlink_callback *cb,
1718 struct nl80211_dump_wiphy_state *state)
1719{
1720 struct nlattr **tb = nl80211_fam.attrbuf;
1721 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1722 tb, nl80211_fam.maxattr, nl80211_policy);
1723 /* ignore parse errors for backward compatibility */
1724 if (ret)
1725 return 0;
1726
1727 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1728 if (tb[NL80211_ATTR_WIPHY])
1729 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1730 if (tb[NL80211_ATTR_WDEV])
1731 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1732 if (tb[NL80211_ATTR_IFINDEX]) {
1733 struct net_device *netdev;
1734 struct cfg80211_registered_device *rdev;
1735 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1736
7f2b8562 1737 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1738 if (!netdev)
1739 return -ENODEV;
1740 if (netdev->ieee80211_ptr) {
f26cbf40 1741 rdev = wiphy_to_rdev(
86e8cf98
JB		 1742 netdev->ieee80211_ptr->wiphy);
1743 state->filter_wiphy = rdev->wiphy_idx;
1744 }
86e8cf98
JB		 1745 }
1746
1747 return 0;
1748}
1749
55682965
JB		 1750static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1751{
645e77de 1752 int idx = 0, ret;
86e8cf98 1753 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1754 struct cfg80211_registered_device *rdev;
3a5a423b 1755
5fe231e8 1756 rtnl_lock();
86e8cf98
JB		 1757 if (!state) {
1758 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1759 if (!state) {
1760 rtnl_unlock();
86e8cf98 1761 return -ENOMEM;
3713b4e3 1762 }
86e8cf98
JB		 1763 state->filter_wiphy = -1;
1764 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1765 if (ret) {
1766 kfree(state);
1767 rtnl_unlock();
1768 return ret;
3713b4e3 1769 }
86e8cf98 1770 cb->args[0] = (long)state;
3713b4e3
JB		 1771 }
1772
1b8ec87a
ZG		 1773 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1774 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1775 continue;
86e8cf98 1776 if (++idx <= state->start)
55682965 1777 continue;
86e8cf98 1778 if (state->filter_wiphy != -1 &&
1b8ec87a 1779 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1780 continue;
1781 /* attempt to fit multiple wiphy data chunks into the skb */
1782 do {
3bb20556
JB		 1783 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1784 skb,
3713b4e3
JB		 1785 NETLINK_CB(cb->skb).portid,
1786 cb->nlh->nlmsg_seq,
86e8cf98 1787 NLM_F_MULTI, state);
3713b4e3
JB		 1788 if (ret < 0) {
1789 /*
1790 * If sending the wiphy data didn't fit (ENOBUFS
1791 * or EMSGSIZE returned), this SKB is still
1792 * empty (so it's not too big because another
1793 * wiphy dataset is already in the skb) and
1794 * we've not tried to adjust the dump allocation
1795 * yet ... then adjust the alloc size to be
1796 * bigger, and return 1 but with the empty skb.
1797 * This results in an empty message being RX'ed
1798 * in userspace, but that is ignored.
1799 *
1800 * We can then retry with the larger buffer.
1801 */
1802 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1803 !skb->len && !state->split &&
3713b4e3
JB		 1804 cb->min_dump_alloc < 4096) {
1805 cb->min_dump_alloc = 4096;
f12cb289 1806 state->split_start = 0;
d98cae64 1807 rtnl_unlock();
3713b4e3
JB		 1808 return 1;
1809 }
1810 idx--;
1811 break;
645e77de 1812 }
86e8cf98 1813 } while (state->split_start > 0);
3713b4e3 1814 break;
55682965 1815 }
5fe231e8 1816 rtnl_unlock();
55682965 1817
86e8cf98 1818 state->start = idx;
55682965
JB		 1819
1820 return skb->len;
1821}
1822
86e8cf98
JB		 1823static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1824{
1825 kfree((void *)cb->args[0]);
1826 return 0;
1827}
1828
55682965
JB		 1829static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1830{
1831 struct sk_buff *msg;
1b8ec87a 1832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1833 struct nl80211_dump_wiphy_state state = {};
55682965 1834
645e77de 1835 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1836 if (!msg)
4c476991 1837 return -ENOMEM;
55682965 1838
3bb20556
JB		 1839 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1840 info->snd_portid, info->snd_seq, 0,
86e8cf98 1841 &state) < 0) {
4c476991
JB		 1842 nlmsg_free(msg);
1843 return -ENOBUFS;
1844 }
55682965 1845
134e6375 1846 return genlmsg_reply(msg, info);
55682965
JB		 1847}
1848
31888487
JM		 1849static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1850 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1851 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1852 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1853 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1854 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1855};
1856
1857static int parse_txq_params(struct nlattr *tb[],
1858 struct ieee80211_txq_params *txq_params)
1859{
a3304b0a 1860 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1861 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1862 !tb[NL80211_TXQ_ATTR_AIFS])
1863 return -EINVAL;
1864
a3304b0a 1865 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1866 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1867 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1868 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1869 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1870
a3304b0a
JB		 1871 if (txq_params->ac >= NL80211_NUM_ACS)
1872 return -EINVAL;
1873
31888487
JM		 1874 return 0;
1875}
1876
f444de05
JB		 1877static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1878{
1879 /*
cc1d2806
JB		 1880 * You can only set the channel explicitly for WDS interfaces,
1881 * all others have their channel managed via their respective
1882 * "establish a connection" command (connect, join, ...)
1883 *
1884 * For AP/GO and mesh mode, the channel can be set with the
1885 * channel userspace API, but is only stored and passed to the
1886 * low-level driver when the AP starts or the mesh is joined.
1887 * This is for backward compatibility, userspace can also give
1888 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1889 *
1890 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1891 * whatever else is going on, so they have their own special
1892 * operation to set the monitor channel if possible.
f444de05
JB		 1893 */
1894 return !wdev ||
1895 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1896 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1897 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1898 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1899}
1900
683b6d3b
JB		 1901static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1902 struct genl_info *info,
1903 struct cfg80211_chan_def *chandef)
1904{
dbeca2ea 1905 u32 control_freq;
683b6d3b
JB		 1906
1907 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1908 return -EINVAL;
1909
1910 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1911
1912 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1913 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1914 chandef->center_freq1 = control_freq;
1915 chandef->center_freq2 = 0;
683b6d3b
JB		 1916
1917 /* Primary channel not allowed */
1918 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1919 return -EINVAL;
1920
3d9d1d66
JB		 1921 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1922 enum nl80211_channel_type chantype;
1923
1924 chantype = nla_get_u32(
1925 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1926
1927 switch (chantype) {
1928 case NL80211_CHAN_NO_HT:
1929 case NL80211_CHAN_HT20:
1930 case NL80211_CHAN_HT40PLUS:
1931 case NL80211_CHAN_HT40MINUS:
1932 cfg80211_chandef_create(chandef, chandef->chan,
1933 chantype);
1934 break;
1935 default:
1936 return -EINVAL;
1937 }
1938 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1939 chandef->width =
1940 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1941 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1942 chandef->center_freq1 =
1943 nla_get_u32(
1944 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1945 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1946 chandef->center_freq2 =
1947 nla_get_u32(
1948 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1949 }
1950
9f5e8f6e 1951 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1952 return -EINVAL;
1953
9f5e8f6e
JB		 1954 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1955 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1956 return -EINVAL;
1957
2f301ab2
SW		 1958 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1959 chandef->width == NL80211_CHAN_WIDTH_10) &&
1960 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1961 return -EINVAL;
1962
683b6d3b
JB		 1963 return 0;
1964}
1965
f444de05 1966static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1967 struct net_device *dev,
f444de05
JB		 1968 struct genl_info *info)
1969{
683b6d3b 1970 struct cfg80211_chan_def chandef;
f444de05 1971 int result;
e8c9bd5b 1972 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1973 struct wireless_dev *wdev = NULL;
e8c9bd5b 1974
e16821bc
JM		 1975 if (dev)
1976 wdev = dev->ieee80211_ptr;
f444de05
JB		 1977 if (!nl80211_can_set_dev_channel(wdev))
1978 return -EOPNOTSUPP;
e16821bc
JM		 1979 if (wdev)
1980 iftype = wdev->iftype;
f444de05 1981
683b6d3b
JB		 1982 result = nl80211_parse_chandef(rdev, info, &chandef);
1983 if (result)
1984 return result;
f444de05 1985
e8c9bd5b 1986 switch (iftype) {
aa430da4
JB		 1987 case NL80211_IFTYPE_AP:
1988 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1989 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1990 result = -EINVAL;
1991 break;
1992 }
e16821bc
JM		 1993 if (wdev->beacon_interval) {
1994 if (!dev || !rdev->ops->set_ap_chanwidth ||
1995 !(rdev->wiphy.features &
1996 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1997 result = -EBUSY;
1998 break;
1999 }
2000
2001 /* Only allow dynamic channel width changes */
2002 if (chandef.chan != wdev->preset_chandef.chan) {
2003 result = -EBUSY;
2004 break;
2005 }
2006 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2007 if (result)
2008 break;
2009 }
683b6d3b 2010 wdev->preset_chandef = chandef;
aa430da4
JB		 2011 result = 0;
2012 break;
cc1d2806 2013 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2014 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2015 break;
e8c9bd5b 2016 case NL80211_IFTYPE_MONITOR:
683b6d3b 2017 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2018 break;
aa430da4 2019 default:
e8c9bd5b 2020 result = -EINVAL;
f444de05 2021 }
f444de05
JB		 2022
2023 return result;
2024}
2025
2026static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2027{
4c476991
JB		 2028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2029 struct net_device *netdev = info->user_ptr[1];
f444de05 2030
e16821bc 2031 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2032}
2033
e8347eba
BJ		 2034static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2035{
43b19952
JB		 2036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2037 struct net_device *dev = info->user_ptr[1];
2038 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2039 const u8 *bssid;
e8347eba
BJ		 2040
2041 if (!info->attrs[NL80211_ATTR_MAC])
2042 return -EINVAL;
2043
43b19952
JB		 2044 if (netif_running(dev))
2045 return -EBUSY;
e8347eba 2046
43b19952
JB		 2047 if (!rdev->ops->set_wds_peer)
2048 return -EOPNOTSUPP;
e8347eba 2049
43b19952
JB		 2050 if (wdev->iftype != NL80211_IFTYPE_WDS)
2051 return -EOPNOTSUPP;
e8347eba
BJ		 2052
2053 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2054 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2055}
2056
2057
55682965
JB		 2058static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2059{
2060 struct cfg80211_registered_device *rdev;
f444de05
JB		 2061 struct net_device *netdev = NULL;
2062 struct wireless_dev *wdev;
a1e567c8 2063 int result = 0, rem_txq_params = 0;
31888487 2064 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2065 u32 changed;
2066 u8 retry_short = 0, retry_long = 0;
2067 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2068 u8 coverage_class = 0;
55682965 2069
5fe231e8
JB		 2070 ASSERT_RTNL();
2071
f444de05
JB		 2072 /*
2073 * Try to find the wiphy and netdev. Normally this
2074 * function shouldn't need the netdev, but this is
2075 * done for backward compatibility -- previously
2076 * setting the channel was done per wiphy, but now
2077 * it is per netdev. Previous userland like hostapd
2078 * also passed a netdev to set_wiphy, so that it is
2079 * possible to let that go to the right netdev!
2080 */
4bbf4d56 2081
f444de05
JB		 2082 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2083 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2084
7f2b8562 2085 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2086 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2087 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2088 else
f444de05 2089 netdev = NULL;
4bbf4d56
JB		 2090 }
2091
f444de05 2092 if (!netdev) {
878d9ec7
JB		 2093 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2094 info->attrs);
5fe231e8 2095 if (IS_ERR(rdev))
4c476991 2096 return PTR_ERR(rdev);
f444de05
JB		 2097 wdev = NULL;
2098 netdev = NULL;
2099 result = 0;
71fe96bf 2100 } else
f444de05 2101 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2102
2103 /*
2104 * end workaround code, by now the rdev is available
2105 * and locked, and wdev may or may not be NULL.
2106 */
4bbf4d56
JB		 2107
2108 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2109 result = cfg80211_dev_rename(
2110 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2111
4bbf4d56 2112 if (result)
7f2b8562 2113 return result;
31888487
JM		 2114
2115 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2116 struct ieee80211_txq_params txq_params;
2117 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2118
7f2b8562
YX		 2119 if (!rdev->ops->set_txq_params)
2120 return -EOPNOTSUPP;
31888487 2121
7f2b8562
YX		 2122 if (!netdev)
2123 return -EINVAL;
f70f01c2 2124
133a3ff2 2125 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2126 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2127 return -EINVAL;
133a3ff2 2128
7f2b8562
YX		 2129 if (!netif_running(netdev))
2130 return -ENETDOWN;
2b5f8b0b 2131
31888487
JM		 2132 nla_for_each_nested(nl_txq_params,
2133 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2134 rem_txq_params) {
ae811e21
JB		 2135 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2136 nla_data(nl_txq_params),
2137 nla_len(nl_txq_params),
2138 txq_params_policy);
2139 if (result)
2140 return result;
31888487
JM		 2141 result = parse_txq_params(tb, &txq_params);
2142 if (result)
7f2b8562 2143 return result;
31888487 2144
e35e4d28
HG		 2145 result = rdev_set_txq_params(rdev, netdev,
2146 &txq_params);
31888487 2147 if (result)
7f2b8562 2148 return result;
31888487
JM		 2149 }
2150 }
55682965 2151
72bdcf34 2152 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2153 result = __nl80211_set_channel(
2154 rdev,
2155 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2156 info);
72bdcf34 2157 if (result)
7f2b8562 2158 return result;
72bdcf34
JM		 2159 }
2160
98d2ff8b 2161 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2162 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2163 enum nl80211_tx_power_setting type;
2164 int idx, mbm = 0;
2165
c8442118
JB		 2166 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2167 txp_wdev = NULL;
2168
7f2b8562
YX		 2169 if (!rdev->ops->set_tx_power)
2170 return -EOPNOTSUPP;
98d2ff8b
JO		 2171
2172 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2173 type = nla_get_u32(info->attrs[idx]);
2174
2175 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2176 (type != NL80211_TX_POWER_AUTOMATIC))
2177 return -EINVAL;
98d2ff8b
JO		 2178
2179 if (type != NL80211_TX_POWER_AUTOMATIC) {
2180 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2181 mbm = nla_get_u32(info->attrs[idx]);
2182 }
2183
c8442118 2184 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2185 if (result)
7f2b8562 2186 return result;
98d2ff8b
JO		 2187 }
2188
afe0cbf8
BR		 2189 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2190 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2191 u32 tx_ant, rx_ant;
7f531e03
BR		 2192 if ((!rdev->wiphy.available_antennas_tx &&
2193 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2194 !rdev->ops->set_antenna)
2195 return -EOPNOTSUPP;
afe0cbf8
BR		 2196
2197 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2198 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2199
a7ffac95 2200 /* reject antenna configurations which don't match the
7f531e03
BR		 2201 * available antenna masks, except for the "all" mask */
2202 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2203 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2204 return -EINVAL;
a7ffac95 2205
7f531e03
BR		 2206 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2207 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2208
e35e4d28 2209 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2210 if (result)
7f2b8562 2211 return result;
afe0cbf8
BR		 2212 }
2213
b9a5f8ca
JM		 2214 changed = 0;
2215
2216 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2217 retry_short = nla_get_u8(
2218 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2219 if (retry_short == 0)
2220 return -EINVAL;
2221
b9a5f8ca
JM		 2222 changed |= WIPHY_PARAM_RETRY_SHORT;
2223 }
2224
2225 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2226 retry_long = nla_get_u8(
2227 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2228 if (retry_long == 0)
2229 return -EINVAL;
2230
b9a5f8ca
JM		 2231 changed |= WIPHY_PARAM_RETRY_LONG;
2232 }
2233
2234 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2235 frag_threshold = nla_get_u32(
2236 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2237 if (frag_threshold < 256)
2238 return -EINVAL;
2239
b9a5f8ca
JM		 2240 if (frag_threshold != (u32) -1) {
2241 /*
2242 * Fragments (apart from the last one) are required to
2243 * have even length. Make the fragmentation code
2244 * simpler by stripping LSB should someone try to use
2245 * odd threshold value.
2246 */
2247 frag_threshold &= ~0x1;
2248 }
2249 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2250 }
2251
2252 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2253 rts_threshold = nla_get_u32(
2254 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2255 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2256 }
2257
81077e82 2258 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2259 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2260 return -EINVAL;
2261
81077e82
LT		 2262 coverage_class = nla_get_u8(
2263 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2264 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2265 }
2266
3057dbfd
LB		 2267 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2268 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2269 return -EOPNOTSUPP;
2270
2271 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2272 }
2273
b9a5f8ca
JM		 2274 if (changed) {
2275 u8 old_retry_short, old_retry_long;
2276 u32 old_frag_threshold, old_rts_threshold;
81077e82 2277 u8 old_coverage_class;
b9a5f8ca 2278
7f2b8562
YX		 2279 if (!rdev->ops->set_wiphy_params)
2280 return -EOPNOTSUPP;
b9a5f8ca
JM		 2281
2282 old_retry_short = rdev->wiphy.retry_short;
2283 old_retry_long = rdev->wiphy.retry_long;
2284 old_frag_threshold = rdev->wiphy.frag_threshold;
2285 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2286 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2287
2288 if (changed & WIPHY_PARAM_RETRY_SHORT)
2289 rdev->wiphy.retry_short = retry_short;
2290 if (changed & WIPHY_PARAM_RETRY_LONG)
2291 rdev->wiphy.retry_long = retry_long;
2292 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2293 rdev->wiphy.frag_threshold = frag_threshold;
2294 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2295 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2296 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2297 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2298
e35e4d28 2299 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2300 if (result) {
2301 rdev->wiphy.retry_short = old_retry_short;
2302 rdev->wiphy.retry_long = old_retry_long;
2303 rdev->wiphy.frag_threshold = old_frag_threshold;
2304 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2305 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2306 }
2307 }
7f2b8562 2308 return 0;
55682965
JB		 2309}
2310
71bbc994
JB		 2311static inline u64 wdev_id(struct wireless_dev *wdev)
2312{
2313 return (u64)wdev->identifier |
f26cbf40 2314 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2315}
55682965 2316
683b6d3b 2317static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2318 const struct cfg80211_chan_def *chandef)
683b6d3b 2319{
9f5e8f6e 2320 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2321
683b6d3b
JB		 2322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2323 chandef->chan->center_freq))
2324 return -ENOBUFS;
3d9d1d66
JB		 2325 switch (chandef->width) {
2326 case NL80211_CHAN_WIDTH_20_NOHT:
2327 case NL80211_CHAN_WIDTH_20:
2328 case NL80211_CHAN_WIDTH_40:
2329 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2330 cfg80211_get_chandef_type(chandef)))
2331 return -ENOBUFS;
2332 break;
2333 default:
2334 break;
2335 }
2336 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2337 return -ENOBUFS;
2338 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2339 return -ENOBUFS;
2340 if (chandef->center_freq2 &&
2341 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2342 return -ENOBUFS;
2343 return 0;
2344}
2345
15e47304 2346static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2347 struct cfg80211_registered_device *rdev,
72fb2abc 2348 struct wireless_dev *wdev)
55682965 2349{
72fb2abc 2350 struct net_device *dev = wdev->netdev;
55682965
JB		 2351 void *hdr;
2352
15e47304 2353 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2354 if (!hdr)
2355 return -1;
2356
72fb2abc
JB		 2357 if (dev &&
2358 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2359 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2360 goto nla_put_failure;
2361
2362 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2363 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2364 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2365 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2366 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2367 rdev->devlist_generation ^
2368 (cfg80211_rdev_list_generation << 2)))
2369 goto nla_put_failure;
f5ea9120 2370
5b7ccaf3 2371 if (rdev->ops->get_channel) {
683b6d3b
JB		 2372 int ret;
2373 struct cfg80211_chan_def chandef;
2374
2375 ret = rdev_get_channel(rdev, wdev, &chandef);
2376 if (ret == 0) {
2377 if (nl80211_send_chandef(msg, &chandef))
2378 goto nla_put_failure;
2379 }
d91df0e3
PF		 2380 }
2381
b84e7a05
AQ		 2382 if (wdev->ssid_len) {
2383 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2384 goto nla_put_failure;
2385 }
2386
55682965
JB		 2387 return genlmsg_end(msg, hdr);
2388
2389 nla_put_failure:
bc3ed28c
TG		 2390 genlmsg_cancel(msg, hdr);
2391 return -EMSGSIZE;
55682965
JB		 2392}
2393
2394static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2395{
2396 int wp_idx = 0;
2397 int if_idx = 0;
2398 int wp_start = cb->args[0];
2399 int if_start = cb->args[1];
f5ea9120 2400 struct cfg80211_registered_device *rdev;
55682965
JB		 2401 struct wireless_dev *wdev;
2402
5fe231e8 2403 rtnl_lock();
f5ea9120
JB		 2404 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2405 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2406 continue;
bba95fef
JB		 2407 if (wp_idx < wp_start) {
2408 wp_idx++;
55682965 2409 continue;
bba95fef 2410 }
55682965
JB		 2411 if_idx = 0;
2412
89a54e48 2413 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2414 if (if_idx < if_start) {
2415 if_idx++;
55682965 2416 continue;
bba95fef 2417 }
15e47304 2418 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2419 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2420 rdev, wdev) < 0) {
bba95fef
JB		 2421 goto out;
2422 }
2423 if_idx++;
55682965 2424 }
bba95fef
JB		 2425
2426 wp_idx++;
55682965 2427 }
bba95fef 2428 out:
5fe231e8 2429 rtnl_unlock();
55682965
JB		 2430
2431 cb->args[0] = wp_idx;
2432 cb->args[1] = if_idx;
2433
2434 return skb->len;
2435}
2436
2437static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2438{
2439 struct sk_buff *msg;
1b8ec87a 2440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2441 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2442
fd2120ca 2443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2444 if (!msg)
4c476991 2445 return -ENOMEM;
55682965 2446
15e47304 2447 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2448 rdev, wdev) < 0) {
4c476991
JB		 2449 nlmsg_free(msg);
2450 return -ENOBUFS;
2451 }
55682965 2452
134e6375 2453 return genlmsg_reply(msg, info);
55682965
JB		 2454}
2455
66f7ac50
MW		 2456static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2457 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2458 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2459 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2460 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2461 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2462 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2463};
2464
2465static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2466{
2467 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2468 int flag;
2469
2470 *mntrflags = 0;
2471
2472 if (!nla)
2473 return -EINVAL;
2474
2475 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2476 nla, mntr_flags_policy))
2477 return -EINVAL;
2478
2479 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2480 if (flags[flag])
2481 *mntrflags |= (1<<flag);
2482
2483 return 0;
2484}
2485
9bc383de 2486static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2487 struct net_device *netdev, u8 use_4addr,
2488 enum nl80211_iftype iftype)
9bc383de 2489{
ad4bb6f8 2490 if (!use_4addr) {
f350a0a8 2491 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2492 return -EBUSY;
9bc383de 2493 return 0;
ad4bb6f8 2494 }
9bc383de
JB		 2495
2496 switch (iftype) {
2497 case NL80211_IFTYPE_AP_VLAN:
2498 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2499 return 0;
2500 break;
2501 case NL80211_IFTYPE_STATION:
2502 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2503 return 0;
2504 break;
2505 default:
2506 break;
2507 }
2508
2509 return -EOPNOTSUPP;
2510}
2511
55682965
JB		 2512static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2513{
4c476991 2514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2515 struct vif_params params;
e36d56b6 2516 int err;
04a773ad 2517 enum nl80211_iftype otype, ntype;
4c476991 2518 struct net_device *dev = info->user_ptr[1];
92ffe055 2519 u32 _flags, *flags = NULL;
ac7f9cfa 2520 bool change = false;
55682965 2521
2ec600d6
LCC		 2522 memset(&params, 0, sizeof(params));
2523
04a773ad 2524 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2525
723b038d 2526 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2527 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2528 if (otype != ntype)
ac7f9cfa 2529 change = true;
4c476991
JB		 2530 if (ntype > NL80211_IFTYPE_MAX)
2531 return -EINVAL;
723b038d
JB		 2532 }
2533
92ffe055 2534 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2535 struct wireless_dev *wdev = dev->ieee80211_ptr;
2536
4c476991
JB		 2537 if (ntype != NL80211_IFTYPE_MESH_POINT)
2538 return -EINVAL;
29cbe68c
JB		 2539 if (netif_running(dev))
2540 return -EBUSY;
2541
2542 wdev_lock(wdev);
2543 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2544 IEEE80211_MAX_MESH_ID_LEN);
2545 wdev->mesh_id_up_len =
2546 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2547 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2548 wdev->mesh_id_up_len);
2549 wdev_unlock(wdev);
2ec600d6
LCC		 2550 }
2551
8b787643
FF		 2552 if (info->attrs[NL80211_ATTR_4ADDR]) {
2553 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2554 change = true;
ad4bb6f8 2555 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2556 if (err)
4c476991 2557 return err;
8b787643
FF		 2558 } else {
2559 params.use_4addr = -1;
2560 }
2561
92ffe055 2562 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2563 if (ntype != NL80211_IFTYPE_MONITOR)
2564 return -EINVAL;
92ffe055
JB		 2565 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2566 &_flags);
ac7f9cfa 2567 if (err)
4c476991 2568 return err;
ac7f9cfa
JB		 2569
2570 flags = &_flags;
2571 change = true;
92ffe055 2572 }
3b85875a 2573
18003297 2574 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2575 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2576 return -EOPNOTSUPP;
2577
ac7f9cfa 2578 if (change)
3d54d255 2579 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2580 else
2581 err = 0;
60719ffd 2582
9bc383de
JB		 2583 if (!err && params.use_4addr != -1)
2584 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2585
55682965
JB		 2586 return err;
2587}
2588
2589static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2590{
4c476991 2591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2592 struct vif_params params;
84efbb84 2593 struct wireless_dev *wdev;
1c90f9d4 2594 struct sk_buff *msg;
55682965
JB		 2595 int err;
2596 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2597 u32 flags;
55682965 2598
78f22b6a
JB		 2599 /* to avoid failing a new interface creation due to pending removal */
2600 cfg80211_destroy_ifaces(rdev);
2601
2ec600d6
LCC		 2602 memset(&params, 0, sizeof(params));
2603
55682965
JB		 2604 if (!info->attrs[NL80211_ATTR_IFNAME])
2605 return -EINVAL;
2606
2607 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2608 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2609 if (type > NL80211_IFTYPE_MAX)
2610 return -EINVAL;
2611 }
2612
79c97e97 2613 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2614 !(rdev->wiphy.interface_modes & (1 << type)))
2615 return -EOPNOTSUPP;
55682965 2616
e8f479b1
BG		 2617 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2618 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2619 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2620 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2621 ETH_ALEN);
2622 if (!is_valid_ether_addr(params.macaddr))
2623 return -EADDRNOTAVAIL;
2624 }
2625
9bc383de 2626 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2627 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2628 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2629 if (err)
4c476991 2630 return err;
9bc383de 2631 }
8b787643 2632
1c90f9d4
JB		 2633 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2634 if (!msg)
2635 return -ENOMEM;
2636
66f7ac50
MW		 2637 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2638 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2639 &flags);
e057d3c3 2640
18003297 2641 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2642 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2643 return -EOPNOTSUPP;
2644
e35e4d28
HG		 2645 wdev = rdev_add_virtual_intf(rdev,
2646 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2647 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2648 if (WARN_ON(!wdev)) {
2649 nlmsg_free(msg);
2650 return -EPROTO;
2651 } else if (IS_ERR(wdev)) {
1c90f9d4 2652 nlmsg_free(msg);
84efbb84 2653 return PTR_ERR(wdev);
1c90f9d4 2654 }
2ec600d6 2655
78f22b6a
JB		 2656 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2657 wdev->owner_nlportid = info->snd_portid;
2658
98104fde
JB		 2659 switch (type) {
2660 case NL80211_IFTYPE_MESH_POINT:
2661 if (!info->attrs[NL80211_ATTR_MESH_ID])
2662 break;
29cbe68c
JB		 2663 wdev_lock(wdev);
2664 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2665 IEEE80211_MAX_MESH_ID_LEN);
2666 wdev->mesh_id_up_len =
2667 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2668 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2669 wdev->mesh_id_up_len);
2670 wdev_unlock(wdev);
98104fde
JB		 2671 break;
2672 case NL80211_IFTYPE_P2P_DEVICE:
2673 /*
2674 * P2P Device doesn't have a netdev, so doesn't go
2675 * through the netdev notifier and must be added here
2676 */
2677 mutex_init(&wdev->mtx);
2678 INIT_LIST_HEAD(&wdev->event_list);
2679 spin_lock_init(&wdev->event_lock);
2680 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2681 spin_lock_init(&wdev->mgmt_registrations_lock);
2682
98104fde
JB		 2683 wdev->identifier = ++rdev->wdev_id;
2684 list_add_rcu(&wdev->list, &rdev->wdev_list);
2685 rdev->devlist_generation++;
98104fde
JB		 2686 break;
2687 default:
2688 break;
29cbe68c
JB		 2689 }
2690
15e47304 2691 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2692 rdev, wdev) < 0) {
2693 nlmsg_free(msg);
2694 return -ENOBUFS;
2695 }
2696
2697 return genlmsg_reply(msg, info);
55682965
JB		 2698}
2699
2700static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2701{
4c476991 2702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2703 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2704
4c476991
JB		 2705 if (!rdev->ops->del_virtual_intf)
2706 return -EOPNOTSUPP;
55682965 2707
84efbb84
JB		 2708 /*
2709 * If we remove a wireless device without a netdev then clear
2710 * user_ptr[1] so that nl80211_post_doit won't dereference it
2711 * to check if it needs to do dev_put(). Otherwise it crashes
2712 * since the wdev has been freed, unlike with a netdev where
2713 * we need the dev_put() for the netdev to really be freed.
2714 */
2715 if (!wdev->netdev)
2716 info->user_ptr[1] = NULL;
2717
e35e4d28 2718 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2719}
2720
1d9d9213
SW		 2721static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2722{
2723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2724 struct net_device *dev = info->user_ptr[1];
2725 u16 noack_map;
2726
2727 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2728 return -EINVAL;
2729
2730 if (!rdev->ops->set_noack_map)
2731 return -EOPNOTSUPP;
2732
2733 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2734
e35e4d28 2735 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2736}
2737
41ade00f
JB		 2738struct get_key_cookie {
2739 struct sk_buff *msg;
2740 int error;
b9454e83 2741 int idx;
41ade00f
JB		 2742};
2743
2744static void get_key_callback(void *c, struct key_params *params)
2745{
b9454e83 2746 struct nlattr *key;
41ade00f
JB		 2747 struct get_key_cookie *cookie = c;
2748
9360ffd1
DM		 2749 if ((params->key &&
2750 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2751 params->key_len, params->key)) ||
2752 (params->seq &&
2753 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2754 params->seq_len, params->seq)) ||
2755 (params->cipher &&
2756 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2757 params->cipher)))
2758 goto nla_put_failure;
41ade00f 2759
b9454e83
JB		 2760 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2761 if (!key)
2762 goto nla_put_failure;
2763
9360ffd1
DM		 2764 if ((params->key &&
2765 nla_put(cookie->msg, NL80211_KEY_DATA,
2766 params->key_len, params->key)) ||
2767 (params->seq &&
2768 nla_put(cookie->msg, NL80211_KEY_SEQ,
2769 params->seq_len, params->seq)) ||
2770 (params->cipher &&
2771 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2772 params->cipher)))
2773 goto nla_put_failure;
b9454e83 2774
9360ffd1
DM		 2775 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2776 goto nla_put_failure;
b9454e83
JB		 2777
2778 nla_nest_end(cookie->msg, key);
2779
41ade00f
JB		 2780 return;
2781 nla_put_failure:
2782 cookie->error = 1;
2783}
2784
2785static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2786{
4c476991 2787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2788 int err;
4c476991 2789 struct net_device *dev = info->user_ptr[1];
41ade00f 2790 u8 key_idx = 0;
e31b8213
JB		 2791 const u8 *mac_addr = NULL;
2792 bool pairwise;
41ade00f
JB		 2793 struct get_key_cookie cookie = {
2794 .error = 0,
2795 };
2796 void *hdr;
2797 struct sk_buff *msg;
2798
2799 if (info->attrs[NL80211_ATTR_KEY_IDX])
2800 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2801
3cfcf6ac 2802 if (key_idx > 5)
41ade00f
JB		 2803 return -EINVAL;
2804
2805 if (info->attrs[NL80211_ATTR_MAC])
2806 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2807
e31b8213
JB		 2808 pairwise = !!mac_addr;
2809 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2810 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2811 if (kt >= NUM_NL80211_KEYTYPES)
2812 return -EINVAL;
2813 if (kt != NL80211_KEYTYPE_GROUP &&
2814 kt != NL80211_KEYTYPE_PAIRWISE)
2815 return -EINVAL;
2816 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2817 }
2818
4c476991
JB		 2819 if (!rdev->ops->get_key)
2820 return -EOPNOTSUPP;
41ade00f 2821
fd2120ca 2822 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2823 if (!msg)
2824 return -ENOMEM;
41ade00f 2825
15e47304 2826 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2827 NL80211_CMD_NEW_KEY);
cb35fba3 2828 if (!hdr)
9fe271af 2829 goto nla_put_failure;
41ade00f
JB		 2830
2831 cookie.msg = msg;
b9454e83 2832 cookie.idx = key_idx;
41ade00f 2833
9360ffd1
DM		 2834 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2835 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2836 goto nla_put_failure;
2837 if (mac_addr &&
2838 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2839 goto nla_put_failure;
41ade00f 2840
e31b8213
JB		 2841 if (pairwise && mac_addr &&
2842 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2843 return -ENOENT;
2844
e35e4d28
HG		 2845 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2846 get_key_callback);
41ade00f
JB		 2847
2848 if (err)
6c95e2a2 2849 goto free_msg;
41ade00f
JB		 2850
2851 if (cookie.error)
2852 goto nla_put_failure;
2853
2854 genlmsg_end(msg, hdr);
4c476991 2855 return genlmsg_reply(msg, info);
41ade00f
JB		 2856
2857 nla_put_failure:
2858 err = -ENOBUFS;
6c95e2a2 2859 free_msg:
41ade00f 2860 nlmsg_free(msg);
41ade00f
JB		 2861 return err;
2862}
2863
2864static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2865{
4c476991 2866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2867 struct key_parse key;
41ade00f 2868 int err;
4c476991 2869 struct net_device *dev = info->user_ptr[1];
41ade00f 2870
b9454e83
JB		 2871 err = nl80211_parse_key(info, &key);
2872 if (err)
2873 return err;
41ade00f 2874
b9454e83 2875 if (key.idx < 0)
41ade00f
JB		 2876 return -EINVAL;
2877
b9454e83
JB		 2878 /* only support setting default key */
2879 if (!key.def && !key.defmgmt)
41ade00f
JB		 2880 return -EINVAL;
2881
dbd2fd65 2882 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2883
dbd2fd65
JB		 2884 if (key.def) {
2885 if (!rdev->ops->set_default_key) {
2886 err = -EOPNOTSUPP;
2887 goto out;
2888 }
41ade00f 2889
dbd2fd65
JB		 2890 err = nl80211_key_allowed(dev->ieee80211_ptr);
2891 if (err)
2892 goto out;
2893
e35e4d28 2894 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2895 key.def_uni, key.def_multi);
2896
2897 if (err)
2898 goto out;
fffd0934 2899
3d23e349 2900#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2901 dev->ieee80211_ptr->wext.default_key = key.idx;
2902#endif
2903 } else {
2904 if (key.def_uni || !key.def_multi) {
2905 err = -EINVAL;
2906 goto out;
2907 }
2908
2909 if (!rdev->ops->set_default_mgmt_key) {
2910 err = -EOPNOTSUPP;
2911 goto out;
2912 }
2913
2914 err = nl80211_key_allowed(dev->ieee80211_ptr);
2915 if (err)
2916 goto out;
2917
e35e4d28 2918 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2919 if (err)
2920 goto out;
2921
2922#ifdef CONFIG_CFG80211_WEXT
2923 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2924#endif
dbd2fd65
JB		 2925 }
2926
2927 out:
fffd0934 2928 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2929
41ade00f
JB		 2930 return err;
2931}
2932
2933static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2934{
4c476991 2935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2936 int err;
4c476991 2937 struct net_device *dev = info->user_ptr[1];
b9454e83 2938 struct key_parse key;
e31b8213 2939 const u8 *mac_addr = NULL;
41ade00f 2940
b9454e83
JB		 2941 err = nl80211_parse_key(info, &key);
2942 if (err)
2943 return err;
41ade00f 2944
b9454e83 2945 if (!key.p.key)
41ade00f
JB		 2946 return -EINVAL;
2947
41ade00f
JB		 2948 if (info->attrs[NL80211_ATTR_MAC])
2949 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2950
e31b8213
JB		 2951 if (key.type == -1) {
2952 if (mac_addr)
2953 key.type = NL80211_KEYTYPE_PAIRWISE;
2954 else
2955 key.type = NL80211_KEYTYPE_GROUP;
2956 }
2957
2958 /* for now */
2959 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2960 key.type != NL80211_KEYTYPE_GROUP)
2961 return -EINVAL;
2962
4c476991
JB		 2963 if (!rdev->ops->add_key)
2964 return -EOPNOTSUPP;
25e47c18 2965
e31b8213
JB		 2966 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2967 key.type == NL80211_KEYTYPE_PAIRWISE,
2968 mac_addr))
4c476991 2969 return -EINVAL;
41ade00f 2970
fffd0934
JB		 2971 wdev_lock(dev->ieee80211_ptr);
2972 err = nl80211_key_allowed(dev->ieee80211_ptr);
2973 if (!err)
e35e4d28
HG		 2974 err = rdev_add_key(rdev, dev, key.idx,
2975 key.type == NL80211_KEYTYPE_PAIRWISE,
2976 mac_addr, &key.p);
fffd0934 2977 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2978
41ade00f
JB		 2979 return err;
2980}
2981
2982static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2983{
4c476991 2984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2985 int err;
4c476991 2986 struct net_device *dev = info->user_ptr[1];
41ade00f 2987 u8 *mac_addr = NULL;
b9454e83 2988 struct key_parse key;
41ade00f 2989
b9454e83
JB		 2990 err = nl80211_parse_key(info, &key);
2991 if (err)
2992 return err;
41ade00f
JB		 2993
2994 if (info->attrs[NL80211_ATTR_MAC])
2995 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2996
e31b8213
JB		 2997 if (key.type == -1) {
2998 if (mac_addr)
2999 key.type = NL80211_KEYTYPE_PAIRWISE;
3000 else
3001 key.type = NL80211_KEYTYPE_GROUP;
3002 }
3003
3004 /* for now */
3005 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3006 key.type != NL80211_KEYTYPE_GROUP)
3007 return -EINVAL;
3008
4c476991
JB		 3009 if (!rdev->ops->del_key)
3010 return -EOPNOTSUPP;
41ade00f 3011
fffd0934
JB		 3012 wdev_lock(dev->ieee80211_ptr);
3013 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3014
3015 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3016 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3017 err = -ENOENT;
3018
fffd0934 3019 if (!err)
e35e4d28
HG		 3020 err = rdev_del_key(rdev, dev, key.idx,
3021 key.type == NL80211_KEYTYPE_PAIRWISE,
3022 mac_addr);
41ade00f 3023
3d23e349 3024#ifdef CONFIG_CFG80211_WEXT
08645126 3025 if (!err) {
b9454e83 3026 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3027 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3028 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3029 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3030 }
3031#endif
fffd0934 3032 wdev_unlock(dev->ieee80211_ptr);
08645126 3033
41ade00f
JB		 3034 return err;
3035}
3036
77765eaf
VT		 3037/* This function returns an error or the number of nested attributes */
3038static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3039{
3040 struct nlattr *attr;
3041 int n_entries = 0, tmp;
3042
3043 nla_for_each_nested(attr, nl_attr, tmp) {
3044 if (nla_len(attr) != ETH_ALEN)
3045 return -EINVAL;
3046
3047 n_entries++;
3048 }
3049
3050 return n_entries;
3051}
3052
3053/*
3054 * This function parses ACL information and allocates memory for ACL data.
3055 * On successful return, the calling function is responsible to free the
3056 * ACL buffer returned by this function.
3057 */
3058static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3059 struct genl_info *info)
3060{
3061 enum nl80211_acl_policy acl_policy;
3062 struct nlattr *attr;
3063 struct cfg80211_acl_data *acl;
3064 int i = 0, n_entries, tmp;
3065
3066 if (!wiphy->max_acl_mac_addrs)
3067 return ERR_PTR(-EOPNOTSUPP);
3068
3069 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3070 return ERR_PTR(-EINVAL);
3071
3072 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3073 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3074 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3075 return ERR_PTR(-EINVAL);
3076
3077 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3078 return ERR_PTR(-EINVAL);
3079
3080 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3081 if (n_entries < 0)
3082 return ERR_PTR(n_entries);
3083
3084 if (n_entries > wiphy->max_acl_mac_addrs)
3085 return ERR_PTR(-ENOTSUPP);
3086
3087 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3088 GFP_KERNEL);
3089 if (!acl)
3090 return ERR_PTR(-ENOMEM);
3091
3092 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3093 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3094 i++;
3095 }
3096
3097 acl->n_acl_entries = n_entries;
3098 acl->acl_policy = acl_policy;
3099
3100 return acl;
3101}
3102
3103static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3104{
3105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3106 struct net_device *dev = info->user_ptr[1];
3107 struct cfg80211_acl_data *acl;
3108 int err;
3109
3110 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3111 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3112 return -EOPNOTSUPP;
3113
3114 if (!dev->ieee80211_ptr->beacon_interval)
3115 return -EINVAL;
3116
3117 acl = parse_acl_data(&rdev->wiphy, info);
3118 if (IS_ERR(acl))
3119 return PTR_ERR(acl);
3120
3121 err = rdev_set_mac_acl(rdev, dev, acl);
3122
3123 kfree(acl);
3124
3125 return err;
3126}
3127
a1193be8 3128static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3129 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3130{
8860020e 3131 bool haveinfo = false;
ed1b6cc7 3132
a1193be8
SW		 3133 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3134 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3135 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3136 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3137 return -EINVAL;
3138
8860020e 3139 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3140
a1193be8
SW		 3141 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3142 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3143 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3144 if (!bcn->head_len)
3145 return -EINVAL;
3146 haveinfo = true;
ed1b6cc7
JB		 3147 }
3148
a1193be8
SW		 3149 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3150 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3151 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3152 haveinfo = true;
ed1b6cc7
JB		 3153 }
3154
4c476991
JB		 3155 if (!haveinfo)
3156 return -EINVAL;
3b85875a 3157
a1193be8
SW		 3158 if (attrs[NL80211_ATTR_IE]) {
3159 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3160 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3161 }
3162
a1193be8 3163 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3164 bcn->proberesp_ies =
a1193be8 3165 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3166 bcn->proberesp_ies_len =
a1193be8 3167 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3168 }
3169
a1193be8 3170 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3171 bcn->assocresp_ies =
a1193be8 3172 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3173 bcn->assocresp_ies_len =
a1193be8 3174 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3175 }
3176
a1193be8
SW		 3177 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3178 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3179 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3180 }
3181
8860020e
JB		 3182 return 0;
3183}
3184
46c1dd0c
FF		 3185static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3186 struct cfg80211_ap_settings *params)
3187{
3188 struct wireless_dev *wdev;
3189 bool ret = false;
3190
89a54e48 3191 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3192 if (wdev->iftype != NL80211_IFTYPE_AP &&
3193 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3194 continue;
3195
683b6d3b 3196 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3197 continue;
3198
683b6d3b 3199 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3200 ret = true;
3201 break;
3202 }
3203
46c1dd0c
FF		 3204 return ret;
3205}
3206
e39e5b5e
JM		 3207static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3208 enum nl80211_auth_type auth_type,
3209 enum nl80211_commands cmd)
3210{
3211 if (auth_type > NL80211_AUTHTYPE_MAX)
3212 return false;
3213
3214 switch (cmd) {
3215 case NL80211_CMD_AUTHENTICATE:
3216 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3217 auth_type == NL80211_AUTHTYPE_SAE)
3218 return false;
3219 return true;
3220 case NL80211_CMD_CONNECT:
3221 case NL80211_CMD_START_AP:
3222 /* SAE not supported yet */
3223 if (auth_type == NL80211_AUTHTYPE_SAE)
3224 return false;
3225 return true;
3226 default:
3227 return false;
3228 }
3229}
3230
8860020e
JB		 3231static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3232{
3233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3234 struct net_device *dev = info->user_ptr[1];
3235 struct wireless_dev *wdev = dev->ieee80211_ptr;
3236 struct cfg80211_ap_settings params;
3237 int err;
3238
3239 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3240 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3241 return -EOPNOTSUPP;
3242
3243 if (!rdev->ops->start_ap)
3244 return -EOPNOTSUPP;
3245
3246 if (wdev->beacon_interval)
3247 return -EALREADY;
3248
3249 memset(&params, 0, sizeof(params));
3250
3251 /* these are required for START_AP */
3252 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3253 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3254 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3255 return -EINVAL;
3256
a1193be8 3257 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3258 if (err)
3259 return err;
3260
3261 params.beacon_interval =
3262 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3263 params.dtim_period =
3264 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3265
3266 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3267 if (err)
3268 return err;
3269
3270 /*
3271 * In theory, some of these attributes should be required here
3272 * but since they were not used when the command was originally
3273 * added, keep them optional for old user space programs to let
3274 * them continue to work with drivers that do not need the
3275 * additional information -- drivers must check!
3276 */
3277 if (info->attrs[NL80211_ATTR_SSID]) {
3278 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3279 params.ssid_len =
3280 nla_len(info->attrs[NL80211_ATTR_SSID]);
3281 if (params.ssid_len == 0 ||
3282 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3283 return -EINVAL;
3284 }
3285
3286 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3287 params.hidden_ssid = nla_get_u32(
3288 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3289 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3290 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3291 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3292 return -EINVAL;
3293 }
3294
3295 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3296
3297 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3298 params.auth_type = nla_get_u32(
3299 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3300 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3301 NL80211_CMD_START_AP))
8860020e
JB		 3302 return -EINVAL;
3303 } else
3304 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3305
3306 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3307 NL80211_MAX_NR_CIPHER_SUITES);
3308 if (err)
3309 return err;
3310
1b658f11
VT		 3311 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3312 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3313 return -EOPNOTSUPP;
3314 params.inactivity_timeout = nla_get_u16(
3315 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3316 }
3317
53cabad7
JB		 3318 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3320 return -EINVAL;
3321 params.p2p_ctwindow =
3322 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3323 if (params.p2p_ctwindow > 127)
3324 return -EINVAL;
3325 if (params.p2p_ctwindow != 0 &&
3326 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3327 return -EINVAL;
3328 }
3329
3330 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3331 u8 tmp;
3332
3333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3334 return -EINVAL;
3335 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3336 if (tmp > 1)
3337 return -EINVAL;
3338 params.p2p_opp_ps = tmp;
3339 if (params.p2p_opp_ps != 0 &&
3340 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3341 return -EINVAL;
3342 }
3343
aa430da4 3344 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3345 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3346 if (err)
3347 return err;
3348 } else if (wdev->preset_chandef.chan) {
3349 params.chandef = wdev->preset_chandef;
46c1dd0c 3350 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3351 return -EINVAL;
3352
174e0cd2
IP		 3353 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3354 wdev->iftype))
aa430da4
JB		 3355 return -EINVAL;
3356
77765eaf
VT		 3357 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3358 params.acl = parse_acl_data(&rdev->wiphy, info);
3359 if (IS_ERR(params.acl))
3360 return PTR_ERR(params.acl);
3361 }
3362
18998c38
EP		 3363 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3364 params.smps_mode =
3365 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3366 switch (params.smps_mode) {
3367 case NL80211_SMPS_OFF:
3368 break;
3369 case NL80211_SMPS_STATIC:
3370 if (!(rdev->wiphy.features &
3371 NL80211_FEATURE_STATIC_SMPS))
3372 return -EINVAL;
3373 break;
3374 case NL80211_SMPS_DYNAMIC:
3375 if (!(rdev->wiphy.features &
3376 NL80211_FEATURE_DYNAMIC_SMPS))
3377 return -EINVAL;
3378 break;
3379 default:
3380 return -EINVAL;
3381 }
3382 } else {
3383 params.smps_mode = NL80211_SMPS_OFF;
3384 }
3385
c56589ed 3386 wdev_lock(wdev);
e35e4d28 3387 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3388 if (!err) {
683b6d3b 3389 wdev->preset_chandef = params.chandef;
8860020e 3390 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3391 wdev->chandef = params.chandef;
06e191e2
AQ		 3392 wdev->ssid_len = params.ssid_len;
3393 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3394 }
c56589ed 3395 wdev_unlock(wdev);
77765eaf
VT		 3396
3397 kfree(params.acl);
3398
56d1893d 3399 return err;
ed1b6cc7
JB		 3400}
3401
8860020e
JB		 3402static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3403{
3404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3405 struct net_device *dev = info->user_ptr[1];
3406 struct wireless_dev *wdev = dev->ieee80211_ptr;
3407 struct cfg80211_beacon_data params;
3408 int err;
3409
3410 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3412 return -EOPNOTSUPP;
3413
3414 if (!rdev->ops->change_beacon)
3415 return -EOPNOTSUPP;
3416
3417 if (!wdev->beacon_interval)
3418 return -EINVAL;
3419
a1193be8 3420 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3421 if (err)
3422 return err;
3423
c56589ed
SW		 3424 wdev_lock(wdev);
3425 err = rdev_change_beacon(rdev, dev, &params);
3426 wdev_unlock(wdev);
3427
3428 return err;
8860020e
JB		 3429}
3430
3431static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3432{
4c476991
JB		 3433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3434 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3435
7c8d5e03 3436 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3437}
3438
5727ef1b
JB		 3439static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3440 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3441 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3442 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3443 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3444 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3445 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3446};
3447
eccb8e8f 3448static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3449 enum nl80211_iftype iftype,
eccb8e8f 3450 struct station_parameters *params)
5727ef1b
JB		 3451{
3452 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3453 struct nlattr *nla;
5727ef1b
JB		 3454 int flag;
3455
eccb8e8f
JB		 3456 /*
3457 * Try parsing the new attribute first so userspace
3458 * can specify both for older kernels.
3459 */
3460 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3461 if (nla) {
3462 struct nl80211_sta_flag_update *sta_flags;
3463
3464 sta_flags = nla_data(nla);
3465 params->sta_flags_mask = sta_flags->mask;
3466 params->sta_flags_set = sta_flags->set;
77ee7c89 3467 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3468 if ((params->sta_flags_mask |
3469 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3470 return -EINVAL;
3471 return 0;
3472 }
3473
3474 /* if present, parse the old attribute */
5727ef1b 3475
eccb8e8f 3476 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3477 if (!nla)
3478 return 0;
3479
3480 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3481 nla, sta_flags_policy))
3482 return -EINVAL;
3483
bdd3ae3d
JB		 3484 /*
3485 * Only allow certain flags for interface types so that
3486 * other attributes are silently ignored. Remember that
3487 * this is backward compatibility code with old userspace
3488 * and shouldn't be hit in other cases anyway.
3489 */
3490 switch (iftype) {
3491 case NL80211_IFTYPE_AP:
3492 case NL80211_IFTYPE_AP_VLAN:
3493 case NL80211_IFTYPE_P2P_GO:
3494 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3495 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3496 BIT(NL80211_STA_FLAG_WME) |
3497 BIT(NL80211_STA_FLAG_MFP);
3498 break;
3499 case NL80211_IFTYPE_P2P_CLIENT:
3500 case NL80211_IFTYPE_STATION:
3501 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3502 BIT(NL80211_STA_FLAG_TDLS_PEER);
3503 break;
3504 case NL80211_IFTYPE_MESH_POINT:
3505 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3506 BIT(NL80211_STA_FLAG_MFP) |
3507 BIT(NL80211_STA_FLAG_AUTHORIZED);
3508 default:
3509 return -EINVAL;
3510 }
5727ef1b 3511
3383b5a6
JB		 3512 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3513 if (flags[flag]) {
eccb8e8f 3514 params->sta_flags_set |= (1<<flag);
5727ef1b 3515
3383b5a6
JB		 3516 /* no longer support new API additions in old API */
3517 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3518 return -EINVAL;
3519 }
3520 }
3521
5727ef1b
JB		 3522 return 0;
3523}
3524
c8dcfd8a
FF		 3525static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3526 int attr)
3527{
3528 struct nlattr *rate;
8eb41c8d
VK		 3529 u32 bitrate;
3530 u16 bitrate_compat;
c8dcfd8a
FF		 3531
3532 rate = nla_nest_start(msg, attr);
3533 if (!rate)
db9c64cf 3534 return false;
c8dcfd8a
FF		 3535
3536 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3537 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3538 /* report 16-bit bitrate only if we can */
3539 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3540 if (bitrate > 0 &&
3541 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3542 return false;
3543 if (bitrate_compat > 0 &&
3544 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3545 return false;
3546
3547 if (info->flags & RATE_INFO_FLAGS_MCS) {
3548 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3549 return false;
3550 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3551 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3552 return false;
3553 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3554 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3555 return false;
3556 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3557 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3558 return false;
3559 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3560 return false;
3561 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3562 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3563 return false;
3564 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3565 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3566 return false;
3567 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3568 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3569 return false;
3570 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3571 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3572 return false;
3573 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3574 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3575 return false;
3576 }
c8dcfd8a
FF		 3577
3578 nla_nest_end(msg, rate);
3579 return true;
c8dcfd8a
FF		 3580}
3581
119363c7
FF		 3582static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3583 int id)
3584{
3585 void *attr;
3586 int i = 0;
3587
3588 if (!mask)
3589 return true;
3590
3591 attr = nla_nest_start(msg, id);
3592 if (!attr)
3593 return false;
3594
3595 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3596 if (!(mask & BIT(i)))
3597 continue;
3598
3599 if (nla_put_u8(msg, i, signal[i]))
3600 return false;
3601 }
3602
3603 nla_nest_end(msg, attr);
3604
3605 return true;
3606}
3607
15e47304 3608static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3609 int flags,
3610 struct cfg80211_registered_device *rdev,
3611 struct net_device *dev,
98b62183 3612 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3613{
3614 void *hdr;
f4263c98 3615 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3616
15e47304 3617 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3618 if (!hdr)
3619 return -1;
3620
9360ffd1
DM		 3621 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3622 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3623 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3624 goto nla_put_failure;
f5ea9120 3625
2ec600d6
LCC		 3626 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3627 if (!sinfoattr)
fd5b74dc 3628 goto nla_put_failure;
9360ffd1
DM		 3629 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3630 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3631 sinfo->connected_time))
3632 goto nla_put_failure;
3633 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3634 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3635 sinfo->inactive_time))
3636 goto nla_put_failure;
42745e03
VK		 3637 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3638 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3639 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3640 (u32)sinfo->rx_bytes))
9360ffd1 3641 goto nla_put_failure;
42745e03 3642 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3643 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3644 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3645 (u32)sinfo->tx_bytes))
3646 goto nla_put_failure;
3647 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3648 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3649 sinfo->rx_bytes))
3650 goto nla_put_failure;
3651 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3652 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3653 sinfo->tx_bytes))
3654 goto nla_put_failure;
3655 if ((sinfo->filled & STATION_INFO_LLID) &&
3656 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3657 goto nla_put_failure;
3658 if ((sinfo->filled & STATION_INFO_PLID) &&
3659 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3660 goto nla_put_failure;
3661 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3662 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3663 sinfo->plink_state))
3664 goto nla_put_failure;
66266b3a
JL		 3665 switch (rdev->wiphy.signal_type) {
3666 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3667 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3668 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3669 sinfo->signal))
3670 goto nla_put_failure;
3671 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3672 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3673 sinfo->signal_avg))
3674 goto nla_put_failure;
66266b3a
JL		 3675 break;
3676 default:
3677 break;
3678 }
119363c7
FF		 3679 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3680 if (!nl80211_put_signal(msg, sinfo->chains,
3681 sinfo->chain_signal,
3682 NL80211_STA_INFO_CHAIN_SIGNAL))
3683 goto nla_put_failure;
3684 }
3685 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3686 if (!nl80211_put_signal(msg, sinfo->chains,
3687 sinfo->chain_signal_avg,
3688 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3689 goto nla_put_failure;
3690 }
420e7fab 3691 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3692 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3693 NL80211_STA_INFO_TX_BITRATE))
3694 goto nla_put_failure;
3695 }
3696 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3697 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3698 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3699 goto nla_put_failure;
420e7fab 3700 }
9360ffd1
DM		 3701 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3702 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3703 sinfo->rx_packets))
3704 goto nla_put_failure;
3705 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3706 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3707 sinfo->tx_packets))
3708 goto nla_put_failure;
3709 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3710 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3711 sinfo->tx_retries))
3712 goto nla_put_failure;
3713 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3714 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3715 sinfo->tx_failed))
3716 goto nla_put_failure;
867d849f
AQ		 3717 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3718 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3719 sinfo->expected_throughput))
3720 goto nla_put_failure;
9360ffd1
DM		 3721 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3722 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3723 sinfo->beacon_loss_count))
3724 goto nla_put_failure;
3b1c5a53
MP		 3725 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3726 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3727 sinfo->local_pm))
3728 goto nla_put_failure;
3729 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3730 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3731 sinfo->peer_pm))
3732 goto nla_put_failure;
3733 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3734 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3735 sinfo->nonpeer_pm))
3736 goto nla_put_failure;
f4263c98
PS		 3737 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3738 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3739 if (!bss_param)
3740 goto nla_put_failure;
3741
9360ffd1
DM		 3742 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3743 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3744 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3745 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3746 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3747 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3748 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3749 sinfo->bss_param.dtim_period) ||
3750 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3751 sinfo->bss_param.beacon_interval))
3752 goto nla_put_failure;
f4263c98
PS		 3753
3754 nla_nest_end(msg, bss_param);
3755 }
9360ffd1
DM		 3756 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3757 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3758 sizeof(struct nl80211_sta_flag_update),
3759 &sinfo->sta_flags))
3760 goto nla_put_failure;
7eab0f64
JL		 3761 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3762 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3763 sinfo->t_offset))
3764 goto nla_put_failure;
2ec600d6 3765 nla_nest_end(msg, sinfoattr);
fd5b74dc 3766
9360ffd1
DM		 3767 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3768 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3769 sinfo->assoc_req_ies))
3770 goto nla_put_failure;
50d3dfb7 3771
fd5b74dc
JB		 3772 return genlmsg_end(msg, hdr);
3773
3774 nla_put_failure:
bc3ed28c
TG		 3775 genlmsg_cancel(msg, hdr);
3776 return -EMSGSIZE;
fd5b74dc
JB		 3777}
3778
2ec600d6 3779static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3780 struct netlink_callback *cb)
2ec600d6 3781{
2ec600d6 3782 struct station_info sinfo;
1b8ec87a 3783 struct cfg80211_registered_device *rdev;
97990a06 3784 struct wireless_dev *wdev;
2ec600d6 3785 u8 mac_addr[ETH_ALEN];
97990a06 3786 int sta_idx = cb->args[2];
2ec600d6 3787 int err;
2ec600d6 3788
1b8ec87a 3789 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3790 if (err)
3791 return err;
bba95fef 3792
97990a06
JB		 3793 if (!wdev->netdev) {
3794 err = -EINVAL;
3795 goto out_err;
3796 }
3797
1b8ec87a 3798 if (!rdev->ops->dump_station) {
eec60b03 3799 err = -EOPNOTSUPP;
bba95fef
JB		 3800 goto out_err;
3801 }
3802
bba95fef 3803 while (1) {
f612cedf 3804 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3805 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3806 mac_addr, &sinfo);
bba95fef
JB		 3807 if (err == -ENOENT)
3808 break;
3809 if (err)
3b85875a 3810 goto out_err;
bba95fef
JB		 3811
3812 if (nl80211_send_station(skb,
15e47304 3813 NETLINK_CB(cb->skb).portid,
bba95fef 3814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3815 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3816 &sinfo) < 0)
3817 goto out;
3818
3819 sta_idx++;
3820 }
3821
3822
3823 out:
97990a06 3824 cb->args[2] = sta_idx;
bba95fef 3825 err = skb->len;
bba95fef 3826 out_err:
1b8ec87a 3827 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3828
3829 return err;
2ec600d6 3830}
fd5b74dc 3831
5727ef1b
JB		 3832static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3833{
4c476991
JB		 3834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3835 struct net_device *dev = info->user_ptr[1];
2ec600d6 3836 struct station_info sinfo;
fd5b74dc
JB		 3837 struct sk_buff *msg;
3838 u8 *mac_addr = NULL;
4c476991 3839 int err;
fd5b74dc 3840
2ec600d6 3841 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3842
3843 if (!info->attrs[NL80211_ATTR_MAC])
3844 return -EINVAL;
3845
3846 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3847
4c476991
JB		 3848 if (!rdev->ops->get_station)
3849 return -EOPNOTSUPP;
3b85875a 3850
e35e4d28 3851 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3852 if (err)
4c476991 3853 return err;
2ec600d6 3854
fd2120ca 3855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3856 if (!msg)
4c476991 3857 return -ENOMEM;
fd5b74dc 3858
15e47304 3859 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3860 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3861 nlmsg_free(msg);
3862 return -ENOBUFS;
3863 }
3b85875a 3864
4c476991 3865 return genlmsg_reply(msg, info);
5727ef1b
JB		 3866}
3867
77ee7c89
JB		 3868int cfg80211_check_station_change(struct wiphy *wiphy,
3869 struct station_parameters *params,
3870 enum cfg80211_station_type statype)
3871{
3872 if (params->listen_interval != -1)
3873 return -EINVAL;
c72e1140
AN		 3874 if (params->aid &&
3875 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3876 return -EINVAL;
3877
3878 /* When you run into this, adjust the code below for the new flag */
3879 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3880
3881 switch (statype) {
eef941e6
TP		 3882 case CFG80211_STA_MESH_PEER_KERNEL:
3883 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3884 /*
3885 * No ignoring the TDLS flag here -- the userspace mesh
3886 * code doesn't have the bug of including TDLS in the
3887 * mask everywhere.
3888 */
3889 if (params->sta_flags_mask &
3890 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3891 BIT(NL80211_STA_FLAG_MFP) |
3892 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3893 return -EINVAL;
3894 break;
3895 case CFG80211_STA_TDLS_PEER_SETUP:
3896 case CFG80211_STA_TDLS_PEER_ACTIVE:
3897 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3898 return -EINVAL;
3899 /* ignore since it can't change */
3900 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3901 break;
3902 default:
3903 /* disallow mesh-specific things */
3904 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3905 return -EINVAL;
3906 if (params->local_pm)
3907 return -EINVAL;
3908 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3909 return -EINVAL;
3910 }
3911
3912 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3913 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3914 /* TDLS can't be set, ... */
3915 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3916 return -EINVAL;
3917 /*
3918 * ... but don't bother the driver with it. This works around
3919 * a hostapd/wpa_supplicant issue -- it always includes the
3920 * TLDS_PEER flag in the mask even for AP mode.
3921 */
3922 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3923 }
3924
3925 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3926 /* reject other things that can't change */
3927 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3928 return -EINVAL;
3929 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3930 return -EINVAL;
3931 if (params->supported_rates)
3932 return -EINVAL;
3933 if (params->ext_capab || params->ht_capa || params->vht_capa)
3934 return -EINVAL;
3935 }
3936
3937 if (statype != CFG80211_STA_AP_CLIENT) {
3938 if (params->vlan)
3939 return -EINVAL;
3940 }
3941
3942 switch (statype) {
3943 case CFG80211_STA_AP_MLME_CLIENT:
3944 /* Use this only for authorizing/unauthorizing a station */
3945 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3946 return -EOPNOTSUPP;
3947 break;
3948 case CFG80211_STA_AP_CLIENT:
3949 /* accept only the listed bits */
3950 if (params->sta_flags_mask &
3951 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3952 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3953 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3954 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3955 BIT(NL80211_STA_FLAG_WME) |
3956 BIT(NL80211_STA_FLAG_MFP)))
3957 return -EINVAL;
3958
3959 /* but authenticated/associated only if driver handles it */
3960 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3961 params->sta_flags_mask &
3962 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3963 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3964 return -EINVAL;
3965 break;
3966 case CFG80211_STA_IBSS:
3967 case CFG80211_STA_AP_STA:
3968 /* reject any changes other than AUTHORIZED */
3969 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3970 return -EINVAL;
3971 break;
3972 case CFG80211_STA_TDLS_PEER_SETUP:
3973 /* reject any changes other than AUTHORIZED or WME */
3974 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3975 BIT(NL80211_STA_FLAG_WME)))
3976 return -EINVAL;
3977 /* force (at least) rates when authorizing */
3978 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3979 !params->supported_rates)
3980 return -EINVAL;
3981 break;
3982 case CFG80211_STA_TDLS_PEER_ACTIVE:
3983 /* reject any changes */
3984 return -EINVAL;
eef941e6 3985 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3986 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3987 return -EINVAL;
3988 break;
eef941e6 3989 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3990 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3991 return -EINVAL;
3992 break;
3993 }
3994
3995 return 0;
3996}
3997EXPORT_SYMBOL(cfg80211_check_station_change);
3998
5727ef1b 3999/*
c258d2de 4000 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4001 */
80b99899
JB		 4002static struct net_device *get_vlan(struct genl_info *info,
4003 struct cfg80211_registered_device *rdev)
5727ef1b 4004{
463d0183 4005 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4006 struct net_device *v;
4007 int ret;
4008
4009 if (!vlanattr)
4010 return NULL;
4011
4012 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4013 if (!v)
4014 return ERR_PTR(-ENODEV);
4015
4016 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4017 ret = -EINVAL;
4018 goto error;
5727ef1b 4019 }
80b99899 4020
77ee7c89
JB		 4021 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4022 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4023 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4024 ret = -EINVAL;
4025 goto error;
4026 }
4027
80b99899
JB		 4028 if (!netif_running(v)) {
4029 ret = -ENETDOWN;
4030 goto error;
4031 }
4032
4033 return v;
4034 error:
4035 dev_put(v);
4036 return ERR_PTR(ret);
5727ef1b
JB		 4037}
4038
94e860f1
JB		 4039static const struct nla_policy
4040nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4041 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4042 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4043};
4044
ff276691
JB		 4045static int nl80211_parse_sta_wme(struct genl_info *info,
4046 struct station_parameters *params)
df881293 4047{
df881293
JM		 4048 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4049 struct nlattr *nla;
4050 int err;
4051
df881293
JM		 4052 /* parse WME attributes if present */
4053 if (!info->attrs[NL80211_ATTR_STA_WME])
4054 return 0;
4055
4056 nla = info->attrs[NL80211_ATTR_STA_WME];
4057 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4058 nl80211_sta_wme_policy);
4059 if (err)
4060 return err;
4061
4062 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4063 params->uapsd_queues = nla_get_u8(
4064 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4065 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4066 return -EINVAL;
4067
4068 if (tb[NL80211_STA_WME_MAX_SP])
4069 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4070
4071 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4072 return -EINVAL;
4073
4074 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4075
4076 return 0;
4077}
4078
c01fc9ad
SD		 4079static int nl80211_parse_sta_channel_info(struct genl_info *info,
4080 struct station_parameters *params)
4081{
4082 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4083 params->supported_channels =
4084 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4085 params->supported_channels_len =
4086 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4087 /*
4088 * Need to include at least one (first channel, number of
4089 * channels) tuple for each subband, and must have proper
4090 * tuples for the rest of the data as well.
4091 */
4092 if (params->supported_channels_len < 2)
4093 return -EINVAL;
4094 if (params->supported_channels_len % 2)
4095 return -EINVAL;
4096 }
4097
4098 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4099 params->supported_oper_classes =
4100 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4101 params->supported_oper_classes_len =
4102 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4103 /*
4104 * The value of the Length field of the Supported Operating
4105 * Classes element is between 2 and 253.
4106 */
4107 if (params->supported_oper_classes_len < 2 ||
4108 params->supported_oper_classes_len > 253)
4109 return -EINVAL;
4110 }
4111 return 0;
4112}
4113
ff276691
JB		 4114static int nl80211_set_station_tdls(struct genl_info *info,
4115 struct station_parameters *params)
4116{
c01fc9ad 4117 int err;
ff276691 4118 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4119 if (info->attrs[NL80211_ATTR_PEER_AID])
4120 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4121 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4122 params->ht_capa =
4123 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4124 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4125 params->vht_capa =
4126 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4127
c01fc9ad
SD		 4128 err = nl80211_parse_sta_channel_info(info, params);
4129 if (err)
4130 return err;
4131
ff276691
JB		 4132 return nl80211_parse_sta_wme(info, params);
4133}
4134
5727ef1b
JB		 4135static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4136{
4c476991 4137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4138 struct net_device *dev = info->user_ptr[1];
5727ef1b 4139 struct station_parameters params;
77ee7c89
JB		 4140 u8 *mac_addr;
4141 int err;
5727ef1b
JB		 4142
4143 memset(&params, 0, sizeof(params));
4144
4145 params.listen_interval = -1;
4146
77ee7c89
JB		 4147 if (!rdev->ops->change_station)
4148 return -EOPNOTSUPP;
4149
5727ef1b
JB		 4150 if (info->attrs[NL80211_ATTR_STA_AID])
4151 return -EINVAL;
4152
4153 if (!info->attrs[NL80211_ATTR_MAC])
4154 return -EINVAL;
4155
4156 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4157
4158 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4159 params.supported_rates =
4160 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4161 params.supported_rates_len =
4162 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4163 }
4164
9d62a986
JM		 4165 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4166 params.capability =
4167 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4168 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4169 }
4170
4171 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4172 params.ext_capab =
4173 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4174 params.ext_capab_len =
4175 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4176 }
4177
df881293 4178 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4179 return -EINVAL;
36aedc90 4180
bdd3ae3d 4181 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4182 return -EINVAL;
4183
f8bacc21 4184 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4185 params.plink_action =
f8bacc21
JB		 4186 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4187 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4188 return -EINVAL;
4189 }
2ec600d6 4190
f8bacc21 4191 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4192 params.plink_state =
f8bacc21
JB		 4193 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4194 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4195 return -EINVAL;
4196 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4197 }
9c3990aa 4198
3b1c5a53
MP		 4199 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4200 enum nl80211_mesh_power_mode pm = nla_get_u32(
4201 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4202
4203 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4204 pm > NL80211_MESH_POWER_MAX)
4205 return -EINVAL;
4206
4207 params.local_pm = pm;
4208 }
4209
77ee7c89
JB		 4210 /* Include parameters for TDLS peer (will check later) */
4211 err = nl80211_set_station_tdls(info, &params);
4212 if (err)
4213 return err;
4214
4215 params.vlan = get_vlan(info, rdev);
4216 if (IS_ERR(params.vlan))
4217 return PTR_ERR(params.vlan);
4218
a97f4424
JB		 4219 switch (dev->ieee80211_ptr->iftype) {
4220 case NL80211_IFTYPE_AP:
4221 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4222 case NL80211_IFTYPE_P2P_GO:
074ac8df 4223 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4224 case NL80211_IFTYPE_STATION:
267335d6 4225 case NL80211_IFTYPE_ADHOC:
a97f4424 4226 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4227 break;
4228 default:
77ee7c89
JB		 4229 err = -EOPNOTSUPP;
4230 goto out_put_vlan;
034d655e
JB		 4231 }
4232
77ee7c89 4233 /* driver will call cfg80211_check_station_change() */
e35e4d28 4234 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4235
77ee7c89 4236 out_put_vlan:
5727ef1b
JB		 4237 if (params.vlan)
4238 dev_put(params.vlan);
3b85875a 4239
5727ef1b
JB		 4240 return err;
4241}
4242
4243static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4244{
4c476991 4245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4246 int err;
4c476991 4247 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4248 struct station_parameters params;
4249 u8 *mac_addr = NULL;
4250
4251 memset(&params, 0, sizeof(params));
4252
984c311b
JB		 4253 if (!rdev->ops->add_station)
4254 return -EOPNOTSUPP;
4255
5727ef1b
JB		 4256 if (!info->attrs[NL80211_ATTR_MAC])
4257 return -EINVAL;
4258
5727ef1b
JB		 4259 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4260 return -EINVAL;
4261
4262 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4263 return -EINVAL;
4264
5e4b6f56
JM		 4265 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4266 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4267 return -EINVAL;
4268
5727ef1b
JB		 4269 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4270 params.supported_rates =
4271 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4272 params.supported_rates_len =
4273 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4274 params.listen_interval =
4275 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4276
3d124ea2 4277 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4278 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4279 else
4280 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4281 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4282 return -EINVAL;
51b50fbe 4283
9d62a986
JM		 4284 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4285 params.capability =
4286 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4287 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4288 }
4289
4290 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4291 params.ext_capab =
4292 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4293 params.ext_capab_len =
4294 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4295 }
4296
36aedc90
JM		 4297 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4298 params.ht_capa =
4299 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4300
f461be3e
MP		 4301 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4302 params.vht_capa =
4303 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4304
60f4a7b1
MK		 4305 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4306 params.opmode_notif_used = true;
4307 params.opmode_notif =
4308 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4309 }
4310
f8bacc21 4311 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4312 params.plink_action =
f8bacc21
JB		 4313 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4314 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4315 return -EINVAL;
4316 }
96b78dff 4317
c01fc9ad
SD		 4318 err = nl80211_parse_sta_channel_info(info, &params);
4319 if (err)
4320 return err;
4321
ff276691
JB		 4322 err = nl80211_parse_sta_wme(info, &params);
4323 if (err)
4324 return err;
bdd90d5e 4325
bdd3ae3d 4326 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4327 return -EINVAL;
4328
77ee7c89
JB		 4329 /* When you run into this, adjust the code below for the new flag */
4330 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4331
bdd90d5e
JB		 4332 switch (dev->ieee80211_ptr->iftype) {
4333 case NL80211_IFTYPE_AP:
4334 case NL80211_IFTYPE_AP_VLAN:
4335 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4336 /* ignore WME attributes if iface/sta is not capable */
4337 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4338 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4339 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4340
bdd90d5e 4341 /* TDLS peers cannot be added */
3d124ea2
JM		 4342 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4343 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4344 return -EINVAL;
bdd90d5e
JB		 4345 /* but don't bother the driver with it */
4346 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4347
d582cffb
JB		 4348 /* allow authenticated/associated only if driver handles it */
4349 if (!(rdev->wiphy.features &
4350 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4351 params.sta_flags_mask &
4352 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4353 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4354 return -EINVAL;
4355
bdd90d5e
JB		 4356 /* must be last in here for error handling */
4357 params.vlan = get_vlan(info, rdev);
4358 if (IS_ERR(params.vlan))
4359 return PTR_ERR(params.vlan);
4360 break;
4361 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4362 /* ignore uAPSD data */
4363 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4364
d582cffb
JB		 4365 /* associated is disallowed */
4366 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4367 return -EINVAL;
bdd90d5e 4368 /* TDLS peers cannot be added */
3d124ea2
JM		 4369 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4370 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4371 return -EINVAL;
4372 break;
4373 case NL80211_IFTYPE_STATION:
93d08f0b 4374 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4375 /* ignore uAPSD data */
4376 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4377
77ee7c89
JB		 4378 /* these are disallowed */
4379 if (params.sta_flags_mask &
4380 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4381 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4382 return -EINVAL;
bdd90d5e
JB		 4383 /* Only TDLS peers can be added */
4384 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4385 return -EINVAL;
4386 /* Can only add if TDLS ... */
4387 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4388 return -EOPNOTSUPP;
4389 /* ... with external setup is supported */
4390 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4391 return -EOPNOTSUPP;
77ee7c89
JB		 4392 /*
4393 * Older wpa_supplicant versions always mark the TDLS peer
4394 * as authorized, but it shouldn't yet be.
4395 */
4396 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4397 break;
4398 default:
4399 return -EOPNOTSUPP;
c75786c9
EP		 4400 }
4401
bdd90d5e 4402 /* be aware of params.vlan when changing code here */
5727ef1b 4403
e35e4d28 4404 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4405
5727ef1b
JB		 4406 if (params.vlan)
4407 dev_put(params.vlan);
5727ef1b
JB		 4408 return err;
4409}
4410
4411static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4412{
4c476991
JB		 4413 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4414 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4415 struct station_del_parameters params;
4416
4417 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4418
4419 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4420 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4421
e80cf853 4422 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4423 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4424 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4425 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4426 return -EINVAL;
5727ef1b 4427
4c476991
JB		 4428 if (!rdev->ops->del_station)
4429 return -EOPNOTSUPP;
3b85875a 4430
98856866
JM		 4431 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4432 params.subtype =
4433 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4434 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4435 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4436 return -EINVAL;
4437 } else {
4438 /* Default to Deauthentication frame */
4439 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4440 }
4441
4442 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4443 params.reason_code =
4444 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4445 if (params.reason_code == 0)
4446 return -EINVAL; /* 0 is reserved */
4447 } else {
4448 /* Default to reason code 2 */
4449 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4450 }
4451
89c771e5 4452 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4453}
4454
15e47304 4455static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4456 int flags, struct net_device *dev,
4457 u8 *dst, u8 *next_hop,
4458 struct mpath_info *pinfo)
4459{
4460 void *hdr;
4461 struct nlattr *pinfoattr;
4462
1ef4c850 4463 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4464 if (!hdr)
4465 return -1;
4466
9360ffd1
DM		 4467 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4468 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4469 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4470 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4471 goto nla_put_failure;
f5ea9120 4472
2ec600d6
LCC		 4473 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4474 if (!pinfoattr)
4475 goto nla_put_failure;
9360ffd1
DM		 4476 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4477 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4478 pinfo->frame_qlen))
4479 goto nla_put_failure;
4480 if (((pinfo->filled & MPATH_INFO_SN) &&
4481 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4482 ((pinfo->filled & MPATH_INFO_METRIC) &&
4483 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4484 pinfo->metric)) ||
4485 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4486 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4487 pinfo->exptime)) ||
4488 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4489 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4490 pinfo->flags)) ||
4491 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4492 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4493 pinfo->discovery_timeout)) ||
4494 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4495 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4496 pinfo->discovery_retries)))
4497 goto nla_put_failure;
2ec600d6
LCC		 4498
4499 nla_nest_end(msg, pinfoattr);
4500
4501 return genlmsg_end(msg, hdr);
4502
4503 nla_put_failure:
bc3ed28c
TG		 4504 genlmsg_cancel(msg, hdr);
4505 return -EMSGSIZE;
2ec600d6
LCC		 4506}
4507
4508static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4509 struct netlink_callback *cb)
2ec600d6 4510{
2ec600d6 4511 struct mpath_info pinfo;
1b8ec87a 4512 struct cfg80211_registered_device *rdev;
97990a06 4513 struct wireless_dev *wdev;
2ec600d6
LCC		 4514 u8 dst[ETH_ALEN];
4515 u8 next_hop[ETH_ALEN];
97990a06 4516 int path_idx = cb->args[2];
2ec600d6 4517 int err;
2ec600d6 4518
1b8ec87a 4519 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4520 if (err)
4521 return err;
bba95fef 4522
1b8ec87a 4523 if (!rdev->ops->dump_mpath) {
eec60b03 4524 err = -EOPNOTSUPP;
bba95fef
JB		 4525 goto out_err;
4526 }
4527
97990a06 4528 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4529 err = -EOPNOTSUPP;
0448b5fc 4530 goto out_err;
eec60b03
JM		 4531 }
4532
bba95fef 4533 while (1) {
1b8ec87a 4534 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4535 next_hop, &pinfo);
bba95fef 4536 if (err == -ENOENT)
2ec600d6 4537 break;
bba95fef 4538 if (err)
3b85875a 4539 goto out_err;
2ec600d6 4540
15e47304 4541 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4542 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4543 wdev->netdev, dst, next_hop,
bba95fef
JB		 4544 &pinfo) < 0)
4545 goto out;
2ec600d6 4546
bba95fef 4547 path_idx++;
2ec600d6 4548 }
2ec600d6 4549
2ec600d6 4550
bba95fef 4551 out:
97990a06 4552 cb->args[2] = path_idx;
bba95fef 4553 err = skb->len;
bba95fef 4554 out_err:
1b8ec87a 4555 nl80211_finish_wdev_dump(rdev);
bba95fef 4556 return err;
2ec600d6
LCC		 4557}
4558
4559static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4560{
4c476991 4561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4562 int err;
4c476991 4563 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4564 struct mpath_info pinfo;
4565 struct sk_buff *msg;
4566 u8 *dst = NULL;
4567 u8 next_hop[ETH_ALEN];
4568
4569 memset(&pinfo, 0, sizeof(pinfo));
4570
4571 if (!info->attrs[NL80211_ATTR_MAC])
4572 return -EINVAL;
4573
4574 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4575
4c476991
JB		 4576 if (!rdev->ops->get_mpath)
4577 return -EOPNOTSUPP;
2ec600d6 4578
4c476991
JB		 4579 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4580 return -EOPNOTSUPP;
eec60b03 4581
e35e4d28 4582 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4583 if (err)
4c476991 4584 return err;
2ec600d6 4585
fd2120ca 4586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4587 if (!msg)
4c476991 4588 return -ENOMEM;
2ec600d6 4589
15e47304 4590 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4591 dev, dst, next_hop, &pinfo) < 0) {
4592 nlmsg_free(msg);
4593 return -ENOBUFS;
4594 }
3b85875a 4595
4c476991 4596 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4597}
4598
4599static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4600{
4c476991
JB		 4601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4602 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4603 u8 *dst = NULL;
4604 u8 *next_hop = NULL;
4605
4606 if (!info->attrs[NL80211_ATTR_MAC])
4607 return -EINVAL;
4608
4609 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4610 return -EINVAL;
4611
4612 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4613 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4614
4c476991
JB		 4615 if (!rdev->ops->change_mpath)
4616 return -EOPNOTSUPP;
35a8efe1 4617
4c476991
JB		 4618 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4619 return -EOPNOTSUPP;
2ec600d6 4620
e35e4d28 4621 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4622}
4c476991 4623
2ec600d6
LCC		 4624static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4625{
4c476991
JB		 4626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4627 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4628 u8 *dst = NULL;
4629 u8 *next_hop = NULL;
4630
4631 if (!info->attrs[NL80211_ATTR_MAC])
4632 return -EINVAL;
4633
4634 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4635 return -EINVAL;
4636
4637 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4638 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4639
4c476991
JB		 4640 if (!rdev->ops->add_mpath)
4641 return -EOPNOTSUPP;
35a8efe1 4642
4c476991
JB		 4643 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4644 return -EOPNOTSUPP;
2ec600d6 4645
e35e4d28 4646 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4647}
4648
4649static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4650{
4c476991
JB		 4651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4652 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4653 u8 *dst = NULL;
4654
4655 if (info->attrs[NL80211_ATTR_MAC])
4656 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4657
4c476991
JB		 4658 if (!rdev->ops->del_mpath)
4659 return -EOPNOTSUPP;
3b85875a 4660
e35e4d28 4661 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4662}
4663
66be7d2b
HR		 4664static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4665{
4666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4667 int err;
4668 struct net_device *dev = info->user_ptr[1];
4669 struct mpath_info pinfo;
4670 struct sk_buff *msg;
4671 u8 *dst = NULL;
4672 u8 mpp[ETH_ALEN];
4673
4674 memset(&pinfo, 0, sizeof(pinfo));
4675
4676 if (!info->attrs[NL80211_ATTR_MAC])
4677 return -EINVAL;
4678
4679 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4680
4681 if (!rdev->ops->get_mpp)
4682 return -EOPNOTSUPP;
4683
4684 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4685 return -EOPNOTSUPP;
4686
4687 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4688 if (err)
4689 return err;
4690
4691 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4692 if (!msg)
4693 return -ENOMEM;
4694
4695 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4696 dev, dst, mpp, &pinfo) < 0) {
4697 nlmsg_free(msg);
4698 return -ENOBUFS;
4699 }
4700
4701 return genlmsg_reply(msg, info);
4702}
4703
4704static int nl80211_dump_mpp(struct sk_buff *skb,
4705 struct netlink_callback *cb)
4706{
4707 struct mpath_info pinfo;
4708 struct cfg80211_registered_device *rdev;
4709 struct wireless_dev *wdev;
4710 u8 dst[ETH_ALEN];
4711 u8 mpp[ETH_ALEN];
4712 int path_idx = cb->args[2];
4713 int err;
4714
4715 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4716 if (err)
4717 return err;
4718
4719 if (!rdev->ops->dump_mpp) {
4720 err = -EOPNOTSUPP;
4721 goto out_err;
4722 }
4723
4724 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4725 err = -EOPNOTSUPP;
4726 goto out_err;
4727 }
4728
4729 while (1) {
4730 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4731 mpp, &pinfo);
4732 if (err == -ENOENT)
4733 break;
4734 if (err)
4735 goto out_err;
4736
4737 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4738 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4739 wdev->netdev, dst, mpp,
4740 &pinfo) < 0)
4741 goto out;
4742
4743 path_idx++;
4744 }
4745
4746 out:
4747 cb->args[2] = path_idx;
4748 err = skb->len;
4749 out_err:
4750 nl80211_finish_wdev_dump(rdev);
4751 return err;
4752}
4753
9f1ba906
JM		 4754static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4755{
4c476991
JB		 4756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4757 struct net_device *dev = info->user_ptr[1];
c56589ed 4758 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4759 struct bss_parameters params;
c56589ed 4760 int err;
9f1ba906
JM		 4761
4762 memset(&params, 0, sizeof(params));
4763 /* default to not changing parameters */
4764 params.use_cts_prot = -1;
4765 params.use_short_preamble = -1;
4766 params.use_short_slot_time = -1;
fd8aaaf3 4767 params.ap_isolate = -1;
50b12f59 4768 params.ht_opmode = -1;
53cabad7
JB		 4769 params.p2p_ctwindow = -1;
4770 params.p2p_opp_ps = -1;
9f1ba906
JM		 4771
4772 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4773 params.use_cts_prot =
4774 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4775 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4776 params.use_short_preamble =
4777 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4778 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4779 params.use_short_slot_time =
4780 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4781 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4782 params.basic_rates =
4783 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4784 params.basic_rates_len =
4785 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4786 }
fd8aaaf3
FF		 4787 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4788 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4789 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4790 params.ht_opmode =
4791 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4792
53cabad7
JB		 4793 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4794 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4795 return -EINVAL;
4796 params.p2p_ctwindow =
4797 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4798 if (params.p2p_ctwindow < 0)
4799 return -EINVAL;
4800 if (params.p2p_ctwindow != 0 &&
4801 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4802 return -EINVAL;
4803 }
4804
4805 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4806 u8 tmp;
4807
4808 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4809 return -EINVAL;
4810 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4811 if (tmp > 1)
4812 return -EINVAL;
4813 params.p2p_opp_ps = tmp;
4814 if (params.p2p_opp_ps &&
4815 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4816 return -EINVAL;
4817 }
4818
4c476991
JB		 4819 if (!rdev->ops->change_bss)
4820 return -EOPNOTSUPP;
9f1ba906 4821
074ac8df 4822 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4823 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4824 return -EOPNOTSUPP;
3b85875a 4825
c56589ed
SW		 4826 wdev_lock(wdev);
4827 err = rdev_change_bss(rdev, dev, &params);
4828 wdev_unlock(wdev);
4829
4830 return err;
9f1ba906
JM		 4831}
4832
b54452b0 4833static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4834 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4835 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4836 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4837 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4838 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4839 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4840 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4841};
4842
4843static int parse_reg_rule(struct nlattr *tb[],
4844 struct ieee80211_reg_rule *reg_rule)
4845{
4846 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4847 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4848
4849 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4850 return -EINVAL;
4851 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4852 return -EINVAL;
4853 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4854 return -EINVAL;
b0dfd2ea
JD		 4855 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4856 return -EINVAL;
b2e1b302
LR		 4857 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4858 return -EINVAL;
4859
4860 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4861
4862 freq_range->start_freq_khz =
4863 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4864 freq_range->end_freq_khz =
4865 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4866 freq_range->max_bandwidth_khz =
4867 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4868
4869 power_rule->max_eirp =
4870 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4871
4872 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4873 power_rule->max_antenna_gain =
4874 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4875
089027e5
JD		 4876 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4877 reg_rule->dfs_cac_ms =
4878 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4879
b2e1b302
LR		 4880 return 0;
4881}
4882
4883static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4884{
b2e1b302 4885 char *data = NULL;
57b5ce07 4886 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4887
80778f18
LR		 4888 /*
4889 * You should only get this when cfg80211 hasn't yet initialized
4890 * completely when built-in to the kernel right between the time
4891 * window between nl80211_init() and regulatory_init(), if that is
4892 * even possible.
4893 */
458f4f9e 4894 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4895 return -EINPROGRESS;
80778f18 4896
57b5ce07
LR		 4897 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4898 user_reg_hint_type =
4899 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4900 else
4901 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4902
4903 switch (user_reg_hint_type) {
4904 case NL80211_USER_REG_HINT_USER:
4905 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4906 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4907 return -EINVAL;
4908
4909 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4910 return regulatory_hint_user(data, user_reg_hint_type);
4911 case NL80211_USER_REG_HINT_INDOOR:
4912 return regulatory_hint_indoor_user();
57b5ce07
LR		 4913 default:
4914 return -EINVAL;
4915 }
b2e1b302
LR		 4916}
4917
24bdd9f4 4918static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4919 struct genl_info *info)
93da9cc1 4920{
4c476991 4921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4922 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4923 struct wireless_dev *wdev = dev->ieee80211_ptr;
4924 struct mesh_config cur_params;
4925 int err = 0;
93da9cc1 4926 void *hdr;
4927 struct nlattr *pinfoattr;
4928 struct sk_buff *msg;
4929
29cbe68c
JB		 4930 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4931 return -EOPNOTSUPP;
4932
24bdd9f4 4933 if (!rdev->ops->get_mesh_config)
4c476991 4934 return -EOPNOTSUPP;
f3f92586 4935
29cbe68c
JB		 4936 wdev_lock(wdev);
4937 /* If not connected, get default parameters */
4938 if (!wdev->mesh_id_len)
4939 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4940 else
e35e4d28 4941 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4942 wdev_unlock(wdev);
4943
93da9cc1 4944 if (err)
4c476991 4945 return err;
93da9cc1 4946
4947 /* Draw up a netlink message to send back */
fd2120ca 4948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4949 if (!msg)
4950 return -ENOMEM;
15e47304 4951 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4952 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4953 if (!hdr)
efe1cf0c 4954 goto out;
24bdd9f4 4955 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4956 if (!pinfoattr)
4957 goto nla_put_failure;
9360ffd1
DM		 4958 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4959 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4960 cur_params.dot11MeshRetryTimeout) ||
4961 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4962 cur_params.dot11MeshConfirmTimeout) ||
4963 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4964 cur_params.dot11MeshHoldingTimeout) ||
4965 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4966 cur_params.dot11MeshMaxPeerLinks) ||
4967 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4968 cur_params.dot11MeshMaxRetries) ||
4969 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4970 cur_params.dot11MeshTTL) ||
4971 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4972 cur_params.element_ttl) ||
4973 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4974 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4975 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4976 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4977 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4978 cur_params.dot11MeshHWMPmaxPREQretries) ||
4979 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4980 cur_params.path_refresh_time) ||
4981 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4982 cur_params.min_discovery_timeout) ||
4983 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4984 cur_params.dot11MeshHWMPactivePathTimeout) ||
4985 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4986 cur_params.dot11MeshHWMPpreqMinInterval) ||
4987 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4988 cur_params.dot11MeshHWMPperrMinInterval) ||
4989 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4990 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4991 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4992 cur_params.dot11MeshHWMPRootMode) ||
4993 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4994 cur_params.dot11MeshHWMPRannInterval) ||
4995 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4996 cur_params.dot11MeshGateAnnouncementProtocol) ||
4997 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4998 cur_params.dot11MeshForwarding) ||
4999 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5000 cur_params.rssi_threshold) ||
5001 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5002 cur_params.ht_opmode) ||
5003 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5004 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5005 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5006 cur_params.dot11MeshHWMProotInterval) ||
5007 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5008 cur_params.dot11MeshHWMPconfirmationInterval) ||
5009 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5010 cur_params.power_mode) ||
5011 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5012 cur_params.dot11MeshAwakeWindowDuration) ||
5013 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5014 cur_params.plink_timeout))
9360ffd1 5015 goto nla_put_failure;
93da9cc1 5016 nla_nest_end(msg, pinfoattr);
5017 genlmsg_end(msg, hdr);
4c476991 5018 return genlmsg_reply(msg, info);
93da9cc1 5019
3b85875a 5020 nla_put_failure:
93da9cc1 5021 genlmsg_cancel(msg, hdr);
efe1cf0c 5022 out:
d080e275 5023 nlmsg_free(msg);
4c476991 5024 return -ENOBUFS;
93da9cc1 5025}
5026
b54452b0 5027static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5028 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5029 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5030 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5031 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5032 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5033 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5034 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5035 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5036 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5037 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5038 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5039 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5040 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5041 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5042 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5043 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5044 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5045 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5046 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5047 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5048 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5049 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5050 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5051 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5052 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5053 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5054 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5055 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5056};
5057
c80d545d
JC		 5058static const struct nla_policy
5059 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5060 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5061 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5062 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5063 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5064 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5065 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5066 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5067 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5068 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5069};
5070
24bdd9f4 5071static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5072 struct mesh_config *cfg,
5073 u32 *mask_out)
93da9cc1 5074{
93da9cc1 5075 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5076 u32 mask = 0;
93da9cc1 5077
ea54fba2
MP		 5078#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5079do { \
5080 if (tb[attr]) { \
5081 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5082 return -EINVAL; \
5083 cfg->param = fn(tb[attr]); \
5084 mask |= (1 << (attr - 1)); \
5085 } \
5086} while (0)
bd90fdcc
JB		 5087
5088
24bdd9f4 5089 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5090 return -EINVAL;
5091 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5092 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5093 nl80211_meshconf_params_policy))
93da9cc1 5094 return -EINVAL;
5095
93da9cc1 5096 /* This makes sure that there aren't more than 32 mesh config
5097 * parameters (otherwise our bitfield scheme would not work.) */
5098 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5099
5100 /* Fill in the params struct */
ea54fba2 5101 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5102 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5103 nla_get_u16);
ea54fba2 5104 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5105 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5106 nla_get_u16);
ea54fba2 5107 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5108 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5109 nla_get_u16);
ea54fba2 5110 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5111 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5112 nla_get_u16);
ea54fba2 5113 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5114 mask, NL80211_MESHCONF_MAX_RETRIES,
5115 nla_get_u8);
ea54fba2 5116 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5117 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5118 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5119 mask, NL80211_MESHCONF_ELEMENT_TTL,
5120 nla_get_u8);
ea54fba2 5121 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5122 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5123 nla_get_u8);
ea54fba2
MP		 5124 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5125 1, 255, mask,
a4f606ea
CYY		 5126 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5127 nla_get_u32);
ea54fba2 5128 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5129 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5130 nla_get_u8);
ea54fba2 5131 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5132 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5133 nla_get_u32);
ea54fba2 5134 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5135 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5136 nla_get_u16);
ea54fba2
MP		 5137 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5138 1, 65535, mask,
a4f606ea
CYY		 5139 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5140 nla_get_u32);
93da9cc1 5141 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5142 1, 65535, mask,
5143 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5144 nla_get_u16);
dca7e943 5145 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5146 1, 65535, mask,
5147 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5148 nla_get_u16);
93da9cc1 5149 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5150 dot11MeshHWMPnetDiameterTraversalTime,
5151 1, 65535, mask,
a4f606ea
CYY		 5152 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5153 nla_get_u16);
ea54fba2
MP		 5154 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5155 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5156 nla_get_u8);
5157 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5158 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5159 nla_get_u16);
63c5723b 5160 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5161 dot11MeshGateAnnouncementProtocol, 0, 1,
5162 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5163 nla_get_u8);
ea54fba2 5164 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5165 mask, NL80211_MESHCONF_FORWARDING,
5166 nla_get_u8);
83374fe9 5167 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5168 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5169 nla_get_s32);
ea54fba2 5170 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5171 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5172 nla_get_u16);
5173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5174 1, 65535, mask,
ac1073a6
CYY		 5175 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5176 nla_get_u32);
ea54fba2 5177 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5178 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5179 nla_get_u16);
5180 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5181 dot11MeshHWMPconfirmationInterval,
5182 1, 65535, mask,
728b19e5 5183 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5184 nla_get_u16);
3b1c5a53
MP		 5185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5186 NL80211_MESH_POWER_ACTIVE,
5187 NL80211_MESH_POWER_MAX,
5188 mask, NL80211_MESHCONF_POWER_MODE,
5189 nla_get_u32);
5190 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5191 0, 65535, mask,
5192 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5193 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5194 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5195 nla_get_u32);
bd90fdcc
JB		 5196 if (mask_out)
5197 *mask_out = mask;
c80d545d 5198
bd90fdcc
JB		 5199 return 0;
5200
5201#undef FILL_IN_MESH_PARAM_IF_SET
5202}
5203
c80d545d
JC		 5204static int nl80211_parse_mesh_setup(struct genl_info *info,
5205 struct mesh_setup *setup)
5206{
bb2798d4 5207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5208 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5209
5210 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5211 return -EINVAL;
5212 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5213 info->attrs[NL80211_ATTR_MESH_SETUP],
5214 nl80211_mesh_setup_params_policy))
5215 return -EINVAL;
5216
d299a1f2
JC		 5217 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5218 setup->sync_method =
5219 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5220 IEEE80211_SYNC_METHOD_VENDOR :
5221 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5222
c80d545d
JC		 5223 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5224 setup->path_sel_proto =
5225 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5226 IEEE80211_PATH_PROTOCOL_VENDOR :
5227 IEEE80211_PATH_PROTOCOL_HWMP;
5228
5229 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5230 setup->path_metric =
5231 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5232 IEEE80211_PATH_METRIC_VENDOR :
5233 IEEE80211_PATH_METRIC_AIRTIME;
5234
581a8b0f
JC		 5235
5236 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5237 struct nlattr *ieattr =
581a8b0f 5238 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5239 if (!is_valid_ie_attr(ieattr))
5240 return -EINVAL;
581a8b0f
JC		 5241 setup->ie = nla_data(ieattr);
5242 setup->ie_len = nla_len(ieattr);
c80d545d 5243 }
bb2798d4
TP		 5244 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5245 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5246 return -EINVAL;
5247 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5248 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5249 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5250 if (setup->is_secure)
5251 setup->user_mpm = true;
c80d545d 5252
6e16d90b
CT		 5253 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5254 if (!setup->user_mpm)
5255 return -EINVAL;
5256 setup->auth_id =
5257 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5258 }
5259
c80d545d
JC		 5260 return 0;
5261}
5262
24bdd9f4 5263static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5264 struct genl_info *info)
bd90fdcc
JB		 5265{
5266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5267 struct net_device *dev = info->user_ptr[1];
29cbe68c 5268 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5269 struct mesh_config cfg;
5270 u32 mask;
5271 int err;
5272
29cbe68c
JB		 5273 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5274 return -EOPNOTSUPP;
5275
24bdd9f4 5276 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5277 return -EOPNOTSUPP;
5278
24bdd9f4 5279 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5280 if (err)
5281 return err;
5282
29cbe68c
JB		 5283 wdev_lock(wdev);
5284 if (!wdev->mesh_id_len)
5285 err = -ENOLINK;
5286
5287 if (!err)
e35e4d28 5288 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5289
5290 wdev_unlock(wdev);
5291
5292 return err;
93da9cc1 5293}
5294
f130347c
LR		 5295static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5296{
458f4f9e 5297 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5298 struct sk_buff *msg;
5299 void *hdr = NULL;
5300 struct nlattr *nl_reg_rules;
5301 unsigned int i;
f130347c
LR		 5302
5303 if (!cfg80211_regdomain)
5fe231e8 5304 return -EINVAL;
f130347c 5305
fd2120ca 5306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5307 if (!msg)
5308 return -ENOBUFS;
f130347c 5309
15e47304 5310 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5311 NL80211_CMD_GET_REG);
5312 if (!hdr)
efe1cf0c 5313 goto put_failure;
f130347c 5314
57b5ce07
LR		 5315 if (reg_last_request_cell_base() &&
5316 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5317 NL80211_USER_REG_HINT_CELL_BASE))
5318 goto nla_put_failure;
5319
458f4f9e
JB		 5320 rcu_read_lock();
5321 regdom = rcu_dereference(cfg80211_regdomain);
5322
5323 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5324 (regdom->dfs_region &&
5325 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5326 goto nla_put_failure_rcu;
5327
f130347c
LR		 5328 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5329 if (!nl_reg_rules)
458f4f9e 5330 goto nla_put_failure_rcu;
f130347c 5331
458f4f9e 5332 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5333 struct nlattr *nl_reg_rule;
5334 const struct ieee80211_reg_rule *reg_rule;
5335 const struct ieee80211_freq_range *freq_range;
5336 const struct ieee80211_power_rule *power_rule;
97524820 5337 unsigned int max_bandwidth_khz;
f130347c 5338
458f4f9e 5339 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5340 freq_range = &reg_rule->freq_range;
5341 power_rule = &reg_rule->power_rule;
5342
5343 nl_reg_rule = nla_nest_start(msg, i);
5344 if (!nl_reg_rule)
458f4f9e 5345 goto nla_put_failure_rcu;
f130347c 5346
97524820
JD		 5347 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5348 if (!max_bandwidth_khz)
5349 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5350 reg_rule);
5351
9360ffd1
DM		 5352 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5353 reg_rule->flags) ||
5354 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5355 freq_range->start_freq_khz) ||
5356 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5357 freq_range->end_freq_khz) ||
5358 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5359 max_bandwidth_khz) ||
9360ffd1
DM		 5360 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5361 power_rule->max_antenna_gain) ||
5362 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5363 power_rule->max_eirp) ||
5364 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5365 reg_rule->dfs_cac_ms))
458f4f9e 5366 goto nla_put_failure_rcu;
f130347c
LR		 5367
5368 nla_nest_end(msg, nl_reg_rule);
5369 }
458f4f9e 5370 rcu_read_unlock();
f130347c
LR		 5371
5372 nla_nest_end(msg, nl_reg_rules);
5373
5374 genlmsg_end(msg, hdr);
5fe231e8 5375 return genlmsg_reply(msg, info);
f130347c 5376
458f4f9e
JB		 5377nla_put_failure_rcu:
5378 rcu_read_unlock();
f130347c
LR		 5379nla_put_failure:
5380 genlmsg_cancel(msg, hdr);
efe1cf0c 5381put_failure:
d080e275 5382 nlmsg_free(msg);
5fe231e8 5383 return -EMSGSIZE;
f130347c
LR		 5384}
5385
b2e1b302
LR		 5386static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5387{
5388 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5389 struct nlattr *nl_reg_rule;
5390 char *alpha2 = NULL;
5391 int rem_reg_rules = 0, r = 0;
5392 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5393 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5394 struct ieee80211_regdomain *rd = NULL;
5395
5396 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5397 return -EINVAL;
5398
5399 if (!info->attrs[NL80211_ATTR_REG_RULES])
5400 return -EINVAL;
5401
5402 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5403
8b60b078
LR		 5404 if (info->attrs[NL80211_ATTR_DFS_REGION])
5405 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5406
b2e1b302 5407 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5408 rem_reg_rules) {
b2e1b302
LR		 5409 num_rules++;
5410 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5411 return -EINVAL;
b2e1b302
LR		 5412 }
5413
e438768f
LR		 5414 if (!reg_is_valid_request(alpha2))
5415 return -EINVAL;
5416
b2e1b302 5417 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5418 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5419
5420 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5421 if (!rd)
5422 return -ENOMEM;
b2e1b302
LR		 5423
5424 rd->n_reg_rules = num_rules;
5425 rd->alpha2[0] = alpha2[0];
5426 rd->alpha2[1] = alpha2[1];
5427
8b60b078
LR		 5428 /*
5429 * Disable DFS master mode if the DFS region was
5430 * not supported or known on this kernel.
5431 */
5432 if (reg_supported_dfs_region(dfs_region))
5433 rd->dfs_region = dfs_region;
5434
b2e1b302 5435 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5436 rem_reg_rules) {
ae811e21
JB		 5437 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5438 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5439 reg_rule_policy);
5440 if (r)
5441 goto bad_reg;
b2e1b302
LR		 5442 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5443 if (r)
5444 goto bad_reg;
5445
5446 rule_idx++;
5447
d0e18f83
LR		 5448 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5449 r = -EINVAL;
b2e1b302 5450 goto bad_reg;
d0e18f83 5451 }
b2e1b302
LR		 5452 }
5453
b2e1b302 5454 r = set_regdom(rd);
6913b49a 5455 /* set_regdom took ownership */
1a919318 5456 rd = NULL;
b2e1b302 5457
d2372b31 5458 bad_reg:
b2e1b302 5459 kfree(rd);
d0e18f83 5460 return r;
b2e1b302
LR		 5461}
5462
83f5e2cf
JB		 5463static int validate_scan_freqs(struct nlattr *freqs)
5464{
5465 struct nlattr *attr1, *attr2;
5466 int n_channels = 0, tmp1, tmp2;
5467
5468 nla_for_each_nested(attr1, freqs, tmp1) {
5469 n_channels++;
5470 /*
5471 * Some hardware has a limited channel list for
5472 * scanning, and it is pretty much nonsensical
5473 * to scan for a channel twice, so disallow that
5474 * and don't require drivers to check that the
5475 * channel list they get isn't longer than what
5476 * they can scan, as long as they can scan all
5477 * the channels they registered at once.
5478 */
5479 nla_for_each_nested(attr2, freqs, tmp2)
5480 if (attr1 != attr2 &&
5481 nla_get_u32(attr1) == nla_get_u32(attr2))
5482 return 0;
5483 }
5484
5485 return n_channels;
5486}
5487
ad2b26ab
JB		 5488static int nl80211_parse_random_mac(struct nlattr **attrs,
5489 u8 *mac_addr, u8 *mac_addr_mask)
5490{
5491 int i;
5492
5493 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5494 memset(mac_addr, 0, ETH_ALEN);
5495 memset(mac_addr_mask, 0, ETH_ALEN);
5496 mac_addr[0] = 0x2;
5497 mac_addr_mask[0] = 0x3;
5498
5499 return 0;
5500 }
5501
5502 /* need both or none */
5503 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5504 return -EINVAL;
5505
5506 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5507 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5508
5509 /* don't allow or configure an mcast address */
5510 if (!is_multicast_ether_addr(mac_addr_mask) ||
5511 is_multicast_ether_addr(mac_addr))
5512 return -EINVAL;
5513
5514 /*
5515 * allow users to pass a MAC address that has bits set outside
5516 * of the mask, but don't bother drivers with having to deal
5517 * with such bits
5518 */
5519 for (i = 0; i < ETH_ALEN; i++)
5520 mac_addr[i] &= mac_addr_mask[i];
5521
5522 return 0;
5523}
5524
2a519311
JB		 5525static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5526{
4c476991 5527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5528 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5529 struct cfg80211_scan_request *request;
2a519311
JB		 5530 struct nlattr *attr;
5531 struct wiphy *wiphy;
83f5e2cf 5532 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5533 size_t ie_len;
2a519311 5534
f4a11bb0
JB		 5535 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5536 return -EINVAL;
5537
79c97e97 5538 wiphy = &rdev->wiphy;
2a519311 5539
4c476991
JB		 5540 if (!rdev->ops->scan)
5541 return -EOPNOTSUPP;
2a519311 5542
f9d15d16 5543 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5544 err = -EBUSY;
5545 goto unlock;
5546 }
2a519311
JB		 5547
5548 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5549 n_channels = validate_scan_freqs(
5550 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5551 if (!n_channels) {
5552 err = -EINVAL;
5553 goto unlock;
5554 }
2a519311 5555 } else {
bdfbec2d 5556 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5557 }
5558
5559 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5560 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5561 n_ssids++;
5562
f9f47529
JB		 5563 if (n_ssids > wiphy->max_scan_ssids) {
5564 err = -EINVAL;
5565 goto unlock;
5566 }
2a519311 5567
70692ad2
JM		 5568 if (info->attrs[NL80211_ATTR_IE])
5569 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5570 else
5571 ie_len = 0;
5572
f9f47529
JB		 5573 if (ie_len > wiphy->max_scan_ie_len) {
5574 err = -EINVAL;
5575 goto unlock;
5576 }
18a83659 5577
2a519311 5578 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5579 + sizeof(*request->ssids) * n_ssids
5580 + sizeof(*request->channels) * n_channels
70692ad2 5581 + ie_len, GFP_KERNEL);
f9f47529
JB		 5582 if (!request) {
5583 err = -ENOMEM;
5584 goto unlock;
5585 }
2a519311 5586
2a519311 5587 if (n_ssids)
5ba63533 5588 request->ssids = (void *)&request->channels[n_channels];
2a519311 5589 request->n_ssids = n_ssids;
70692ad2
JM		 5590 if (ie_len) {
5591 if (request->ssids)
5592 request->ie = (void *)(request->ssids + n_ssids);
5593 else
5594 request->ie = (void *)(request->channels + n_channels);
5595 }
2a519311 5596
584991dc 5597 i = 0;
2a519311
JB		 5598 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5599 /* user specified, bail out if channel not found */
2a519311 5600 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5601 struct ieee80211_channel *chan;
5602
5603 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5604
5605 if (!chan) {
2a519311
JB		 5606 err = -EINVAL;
5607 goto out_free;
5608 }
584991dc
JB		 5609
5610 /* ignore disabled channels */
5611 if (chan->flags & IEEE80211_CHAN_DISABLED)
5612 continue;
5613
5614 request->channels[i] = chan;
2a519311
JB		 5615 i++;
5616 }
5617 } else {
34850ab2
JB		 5618 enum ieee80211_band band;
5619
2a519311 5620 /* all channels */
2a519311
JB		 5621 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5622 int j;
5623 if (!wiphy->bands[band])
5624 continue;
5625 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5626 struct ieee80211_channel *chan;
5627
5628 chan = &wiphy->bands[band]->channels[j];
5629
5630 if (chan->flags & IEEE80211_CHAN_DISABLED)
5631 continue;
5632
5633 request->channels[i] = chan;
2a519311
JB		 5634 i++;
5635 }
5636 }
5637 }
5638
584991dc
JB		 5639 if (!i) {
5640 err = -EINVAL;
5641 goto out_free;
5642 }
5643
5644 request->n_channels = i;
5645
2a519311
JB		 5646 i = 0;
5647 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5648 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5649 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5650 err = -EINVAL;
5651 goto out_free;
5652 }
57a27e1d 5653 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5654 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5655 i++;
5656 }
5657 }
5658
70692ad2
JM		 5659 if (info->attrs[NL80211_ATTR_IE]) {
5660 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5661 memcpy((void *)request->ie,
5662 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5663 request->ie_len);
5664 }
5665
34850ab2 5666 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5667 if (wiphy->bands[i])
5668 request->rates[i] =
5669 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5670
5671 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5672 nla_for_each_nested(attr,
5673 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5674 tmp) {
5675 enum ieee80211_band band = nla_type(attr);
5676
84404623 5677 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5678 err = -EINVAL;
5679 goto out_free;
5680 }
1b09cd82
FF		 5681
5682 if (!wiphy->bands[band])
5683 continue;
5684
34850ab2
JB		 5685 err = ieee80211_get_ratemask(wiphy->bands[band],
5686 nla_data(attr),
5687 nla_len(attr),
5688 &request->rates[band]);
5689 if (err)
5690 goto out_free;
5691 }
5692 }
5693
46856bbf 5694 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5695 request->flags = nla_get_u32(
5696 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5697 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5698 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5699 err = -EOPNOTSUPP;
5700 goto out_free;
5701 }
ad2b26ab
JB		 5702
5703 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5704 if (!(wiphy->features &
5705 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5706 err = -EOPNOTSUPP;
5707 goto out_free;
5708 }
5709
5710 if (wdev->current_bss) {
5711 err = -EOPNOTSUPP;
5712 goto out_free;
5713 }
5714
5715 err = nl80211_parse_random_mac(info->attrs,
5716 request->mac_addr,
5717 request->mac_addr_mask);
5718 if (err)
5719 goto out_free;
5720 }
46856bbf 5721 }
ed473771 5722
e9f935e3
RM		 5723 request->no_cck =
5724 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5725
fd014284 5726 request->wdev = wdev;
79c97e97 5727 request->wiphy = &rdev->wiphy;
15d6030b 5728 request->scan_start = jiffies;
2a519311 5729
79c97e97 5730 rdev->scan_req = request;
e35e4d28 5731 err = rdev_scan(rdev, request);
2a519311 5732
463d0183 5733 if (!err) {
fd014284
JB		 5734 nl80211_send_scan_start(rdev, wdev);
5735 if (wdev->netdev)
5736 dev_hold(wdev->netdev);
4c476991 5737 } else {
2a519311 5738 out_free:
79c97e97 5739 rdev->scan_req = NULL;
2a519311
JB		 5740 kfree(request);
5741 }
3b85875a 5742
f9f47529 5743 unlock:
2a519311
JB		 5744 return err;
5745}
5746
256da02d 5747static struct cfg80211_sched_scan_request *
ad2b26ab 5748nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5749 struct nlattr **attrs)
807f8a8c
LC		 5750{
5751 struct cfg80211_sched_scan_request *request;
807f8a8c 5752 struct nlattr *attr;
a1f1c21c 5753 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5754 u32 interval;
807f8a8c
LC		 5755 enum ieee80211_band band;
5756 size_t ie_len;
a1f1c21c 5757 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5758 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5759
256da02d
LC		 5760 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5761 return ERR_PTR(-EINVAL);
807f8a8c 5762
256da02d
LC		 5763 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5764 return ERR_PTR(-EINVAL);
bbe6ad6d 5765
256da02d 5766 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5767 if (interval == 0)
256da02d 5768 return ERR_PTR(-EINVAL);
807f8a8c 5769
256da02d 5770 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5771 n_channels = validate_scan_freqs(
256da02d 5772 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5773 if (!n_channels)
256da02d 5774 return ERR_PTR(-EINVAL);
807f8a8c 5775 } else {
bdfbec2d 5776 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5777 }
5778
256da02d
LC		 5779 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5780 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5781 tmp)
5782 n_ssids++;
5783
93b6aa69 5784 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5785 return ERR_PTR(-EINVAL);
807f8a8c 5786
ea73cbce
JB		 5787 /*
5788 * First, count the number of 'real' matchsets. Due to an issue with
5789 * the old implementation, matchsets containing only the RSSI attribute
5790 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5791 * RSSI for all matchsets, rather than their own matchset for reporting
5792 * all APs with a strong RSSI. This is needed to be compatible with
5793 * older userspace that treated a matchset with only the RSSI as the
5794 * global RSSI for all other matchsets - if there are other matchsets.
5795 */
256da02d 5796 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5797 nla_for_each_nested(attr,
256da02d 5798 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5799 tmp) {
5800 struct nlattr *rssi;
5801
5802 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5803 nla_data(attr), nla_len(attr),
5804 nl80211_match_policy);
5805 if (err)
256da02d 5806 return ERR_PTR(err);
ea73cbce
JB		 5807 /* add other standalone attributes here */
5808 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5809 n_match_sets++;
5810 continue;
5811 }
5812 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5813 if (rssi)
5814 default_match_rssi = nla_get_s32(rssi);
5815 }
5816 }
5817
5818 /* However, if there's no other matchset, add the RSSI one */
5819 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5820 n_match_sets = 1;
a1f1c21c
LC		 5821
5822 if (n_match_sets > wiphy->max_match_sets)
256da02d 5823 return ERR_PTR(-EINVAL);
a1f1c21c 5824
256da02d
LC		 5825 if (attrs[NL80211_ATTR_IE])
5826 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 5827 else
5828 ie_len = 0;
5829
5a865bad 5830 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 5831 return ERR_PTR(-EINVAL);
c10841ca 5832
807f8a8c 5833 request = kzalloc(sizeof(*request)
a2cd43c5 5834 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5835 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5836 + sizeof(*request->channels) * n_channels
807f8a8c 5837 + ie_len, GFP_KERNEL);
256da02d
LC		 5838 if (!request)
5839 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 5840
5841 if (n_ssids)
5842 request->ssids = (void *)&request->channels[n_channels];
5843 request->n_ssids = n_ssids;
5844 if (ie_len) {
5845 if (request->ssids)
5846 request->ie = (void *)(request->ssids + n_ssids);
5847 else
5848 request->ie = (void *)(request->channels + n_channels);
5849 }
5850
a1f1c21c
LC		 5851 if (n_match_sets) {
5852 if (request->ie)
5853 request->match_sets = (void *)(request->ie + ie_len);
5854 else if (request->ssids)
5855 request->match_sets =
5856 (void *)(request->ssids + n_ssids);
5857 else
5858 request->match_sets =
5859 (void *)(request->channels + n_channels);
5860 }
5861 request->n_match_sets = n_match_sets;
5862
807f8a8c 5863 i = 0;
256da02d 5864 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 5865 /* user specified, bail out if channel not found */
5866 nla_for_each_nested(attr,
256da02d 5867 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 5868 tmp) {
5869 struct ieee80211_channel *chan;
5870
5871 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5872
5873 if (!chan) {
5874 err = -EINVAL;
5875 goto out_free;
5876 }
5877
5878 /* ignore disabled channels */
5879 if (chan->flags & IEEE80211_CHAN_DISABLED)
5880 continue;
5881
5882 request->channels[i] = chan;
5883 i++;
5884 }
5885 } else {
5886 /* all channels */
5887 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5888 int j;
5889 if (!wiphy->bands[band])
5890 continue;
5891 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5892 struct ieee80211_channel *chan;
5893
5894 chan = &wiphy->bands[band]->channels[j];
5895
5896 if (chan->flags & IEEE80211_CHAN_DISABLED)
5897 continue;
5898
5899 request->channels[i] = chan;
5900 i++;
5901 }
5902 }
5903 }
5904
5905 if (!i) {
5906 err = -EINVAL;
5907 goto out_free;
5908 }
5909
5910 request->n_channels = i;
5911
5912 i = 0;
256da02d
LC		 5913 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
5914 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 5915 tmp) {
57a27e1d 5916 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5917 err = -EINVAL;
5918 goto out_free;
5919 }
57a27e1d 5920 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5921 memcpy(request->ssids[i].ssid, nla_data(attr),
5922 nla_len(attr));
807f8a8c
LC		 5923 i++;
5924 }
5925 }
5926
a1f1c21c 5927 i = 0;
256da02d 5928 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5929 nla_for_each_nested(attr,
256da02d 5930 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 5931 tmp) {
88e920b4 5932 struct nlattr *ssid, *rssi;
a1f1c21c 5933
ae811e21
JB		 5934 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5935 nla_data(attr), nla_len(attr),
5936 nl80211_match_policy);
5937 if (err)
5938 goto out_free;
4a4ab0d7 5939 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5940 if (ssid) {
ea73cbce
JB		 5941 if (WARN_ON(i >= n_match_sets)) {
5942 /* this indicates a programming error,
5943 * the loop above should have verified
5944 * things properly
5945 */
5946 err = -EINVAL;
5947 goto out_free;
5948 }
5949
a1f1c21c
LC		 5950 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5951 err = -EINVAL;
5952 goto out_free;
5953 }
5954 memcpy(request->match_sets[i].ssid.ssid,
5955 nla_data(ssid), nla_len(ssid));
5956 request->match_sets[i].ssid.ssid_len =
5957 nla_len(ssid);
ea73cbce
JB		 5958 /* special attribute - old implemenation w/a */
5959 request->match_sets[i].rssi_thold =
5960 default_match_rssi;
5961 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5962 if (rssi)
5963 request->match_sets[i].rssi_thold =
5964 nla_get_s32(rssi);
a1f1c21c
LC		 5965 }
5966 i++;
5967 }
ea73cbce
JB		 5968
5969 /* there was no other matchset, so the RSSI one is alone */
5970 if (i == 0)
5971 request->match_sets[0].rssi_thold = default_match_rssi;
5972
5973 request->min_rssi_thold = INT_MAX;
5974 for (i = 0; i < n_match_sets; i++)
5975 request->min_rssi_thold =
5976 min(request->match_sets[i].rssi_thold,
5977 request->min_rssi_thold);
5978 } else {
5979 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5980 }
5981
9900e484
JB		 5982 if (ie_len) {
5983 request->ie_len = ie_len;
807f8a8c 5984 memcpy((void *)request->ie,
256da02d 5985 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 5986 request->ie_len);
5987 }
5988
256da02d 5989 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 5990 request->flags = nla_get_u32(
256da02d 5991 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5992 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5993 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5994 err = -EOPNOTSUPP;
5995 goto out_free;
5996 }
ad2b26ab
JB		 5997
5998 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5999 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6000
6001 if (!wdev) /* must be net-detect */
6002 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6003
6004 if (!(wiphy->features & flg)) {
6005 err = -EOPNOTSUPP;
6006 goto out_free;
6007 }
6008
6009 if (wdev && wdev->current_bss) {
6010 err = -EOPNOTSUPP;
6011 goto out_free;
6012 }
6013
6014 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6015 request->mac_addr_mask);
6016 if (err)
6017 goto out_free;
6018 }
46856bbf 6019 }
ed473771 6020
bbe6ad6d 6021 request->interval = interval;
15d6030b 6022 request->scan_start = jiffies;
807f8a8c 6023
256da02d 6024 return request;
807f8a8c
LC		 6025
6026out_free:
6027 kfree(request);
256da02d
LC		 6028 return ERR_PTR(err);
6029}
6030
6031static int nl80211_start_sched_scan(struct sk_buff *skb,
6032 struct genl_info *info)
6033{
6034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6035 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6036 struct wireless_dev *wdev = dev->ieee80211_ptr;
256da02d
LC		 6037 int err;
6038
6039 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6040 !rdev->ops->sched_scan_start)
6041 return -EOPNOTSUPP;
6042
6043 if (rdev->sched_scan_req)
6044 return -EINPROGRESS;
6045
ad2b26ab 6046 rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
256da02d
LC		 6047 info->attrs);
6048 err = PTR_ERR_OR_ZERO(rdev->sched_scan_req);
6049 if (err)
6050 goto out_err;
6051
6052 err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req);
6053 if (err)
6054 goto out_free;
6055
6056 rdev->sched_scan_req->dev = dev;
6057 rdev->sched_scan_req->wiphy = &rdev->wiphy;
6058
6059 nl80211_send_sched_scan(rdev, dev,
6060 NL80211_CMD_START_SCHED_SCAN);
6061 return 0;
6062
6063out_free:
6064 kfree(rdev->sched_scan_req);
6065out_err:
6066 rdev->sched_scan_req = NULL;
807f8a8c
LC		 6067 return err;
6068}
6069
6070static int nl80211_stop_sched_scan(struct sk_buff *skb,
6071 struct genl_info *info)
6072{
6073 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6074
6075 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6076 !rdev->ops->sched_scan_stop)
6077 return -EOPNOTSUPP;
6078
5fe231e8 6079 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6080}
6081
04f39047
SW		 6082static int nl80211_start_radar_detection(struct sk_buff *skb,
6083 struct genl_info *info)
6084{
6085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6086 struct net_device *dev = info->user_ptr[1];
6087 struct wireless_dev *wdev = dev->ieee80211_ptr;
6088 struct cfg80211_chan_def chandef;
55f7435c 6089 enum nl80211_dfs_regions dfs_region;
31559f35 6090 unsigned int cac_time_ms;
04f39047
SW		 6091 int err;
6092
55f7435c
LR		 6093 dfs_region = reg_get_dfs_region(wdev->wiphy);
6094 if (dfs_region == NL80211_DFS_UNSET)
6095 return -EINVAL;
6096
04f39047
SW		 6097 err = nl80211_parse_chandef(rdev, info, &chandef);
6098 if (err)
6099 return err;
6100
ff311bc1
SW		 6101 if (netif_carrier_ok(dev))
6102 return -EBUSY;
6103
04f39047
SW		 6104 if (wdev->cac_started)
6105 return -EBUSY;
6106
2beb6dab 6107 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6108 wdev->iftype);
04f39047
SW		 6109 if (err < 0)
6110 return err;
6111
6112 if (err == 0)
6113 return -EINVAL;
6114
fe7c3a1f 6115 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6116 return -EINVAL;
6117
6118 if (!rdev->ops->start_radar_detection)
6119 return -EOPNOTSUPP;
6120
31559f35
JD		 6121 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6122 if (WARN_ON(!cac_time_ms))
6123 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6124
6125 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6126 cac_time_ms);
04f39047 6127 if (!err) {
9e0e2961 6128 wdev->chandef = chandef;
04f39047
SW		 6129 wdev->cac_started = true;
6130 wdev->cac_start_time = jiffies;
31559f35 6131 wdev->cac_time_ms = cac_time_ms;
04f39047 6132 }
04f39047
SW		 6133 return err;
6134}
6135
16ef1fe2
SW		 6136static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6137{
6138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6139 struct net_device *dev = info->user_ptr[1];
6140 struct wireless_dev *wdev = dev->ieee80211_ptr;
6141 struct cfg80211_csa_settings params;
6142 /* csa_attrs is defined static to avoid waste of stack size - this
6143 * function is called under RTNL lock, so this should not be a problem.
6144 */
6145 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6146 int err;
ee4bc9e7 6147 bool need_new_beacon = false;
9a774c78 6148 int len, i;
252e07ca 6149 u32 cs_count;
16ef1fe2
SW		 6150
6151 if (!rdev->ops->channel_switch ||
6152 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6153 return -EOPNOTSUPP;
6154
ee4bc9e7
SW		 6155 switch (dev->ieee80211_ptr->iftype) {
6156 case NL80211_IFTYPE_AP:
6157 case NL80211_IFTYPE_P2P_GO:
6158 need_new_beacon = true;
6159
6160 /* useless if AP is not running */
6161 if (!wdev->beacon_interval)
1ff79dfa 6162 return -ENOTCONN;
ee4bc9e7
SW		 6163 break;
6164 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6165 if (!wdev->ssid_len)
6166 return -ENOTCONN;
6167 break;
c6da674a 6168 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6169 if (!wdev->mesh_id_len)
6170 return -ENOTCONN;
ee4bc9e7
SW		 6171 break;
6172 default:
16ef1fe2 6173 return -EOPNOTSUPP;
ee4bc9e7 6174 }
16ef1fe2
SW		 6175
6176 memset(&params, 0, sizeof(params));
6177
6178 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6179 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6180 return -EINVAL;
6181
6182 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6183 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6184 return -EINVAL;
6185
252e07ca
LC		 6186 /* Even though the attribute is u32, the specification says
6187 * u8, so let's make sure we don't overflow.
6188 */
6189 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6190 if (cs_count > 255)
6191 return -EINVAL;
6192
6193 params.count = cs_count;
16ef1fe2 6194
ee4bc9e7
SW		 6195 if (!need_new_beacon)
6196 goto skip_beacons;
6197
16ef1fe2
SW		 6198 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6199 if (err)
6200 return err;
6201
6202 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6203 info->attrs[NL80211_ATTR_CSA_IES],
6204 nl80211_policy);
6205 if (err)
6206 return err;
6207
6208 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6209 if (err)
6210 return err;
6211
6212 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6213 return -EINVAL;
6214
9a774c78
AO		 6215 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6216 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6217 return -EINVAL;
6218
9a774c78
AO		 6219 params.n_counter_offsets_beacon = len / sizeof(u16);
6220 if (rdev->wiphy.max_num_csa_counters &&
6221 (params.n_counter_offsets_beacon >
6222 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6223 return -EINVAL;
6224
9a774c78
AO		 6225 params.counter_offsets_beacon =
6226 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6227
6228 /* sanity checks - counters should fit and be the same */
6229 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6230 u16 offset = params.counter_offsets_beacon[i];
6231
6232 if (offset >= params.beacon_csa.tail_len)
6233 return -EINVAL;
6234
6235 if (params.beacon_csa.tail[offset] != params.count)
6236 return -EINVAL;
6237 }
6238
16ef1fe2 6239 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6240 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6241 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6242 return -EINVAL;
6243
9a774c78
AO		 6244 params.n_counter_offsets_presp = len / sizeof(u16);
6245 if (rdev->wiphy.max_num_csa_counters &&
6246 (params.n_counter_offsets_beacon >
6247 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6248 return -EINVAL;
9a774c78
AO		 6249
6250 params.counter_offsets_presp =
6251 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6252
6253 /* sanity checks - counters should fit and be the same */
6254 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6255 u16 offset = params.counter_offsets_presp[i];
6256
6257 if (offset >= params.beacon_csa.probe_resp_len)
6258 return -EINVAL;
6259
6260 if (params.beacon_csa.probe_resp[offset] !=
6261 params.count)
6262 return -EINVAL;
6263 }
16ef1fe2
SW		 6264 }
6265
ee4bc9e7 6266skip_beacons:
16ef1fe2
SW		 6267 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6268 if (err)
6269 return err;
6270
174e0cd2
IP		 6271 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6272 wdev->iftype))
16ef1fe2
SW		 6273 return -EINVAL;
6274
2beb6dab
LC		 6275 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6276 &params.chandef,
6277 wdev->iftype);
6278 if (err < 0)
6279 return err;
6280
dcc6c2f5 6281 if (err > 0)
2beb6dab 6282 params.radar_required = true;
16ef1fe2 6283
16ef1fe2
SW		 6284 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6285 params.block_tx = true;
6286
c56589ed
SW		 6287 wdev_lock(wdev);
6288 err = rdev_channel_switch(rdev, dev, &params);
6289 wdev_unlock(wdev);
6290
6291 return err;
16ef1fe2
SW		 6292}
6293
9720bb3a
JB		 6294static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6295 u32 seq, int flags,
2a519311 6296 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6297 struct wireless_dev *wdev,
6298 struct cfg80211_internal_bss *intbss)
2a519311 6299{
48ab905d 6300 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6301 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6302 void *hdr;
6303 struct nlattr *bss;
48ab905d
JB		 6304
6305 ASSERT_WDEV_LOCK(wdev);
2a519311 6306
15e47304 6307 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6308 NL80211_CMD_NEW_SCAN_RESULTS);
6309 if (!hdr)
6310 return -1;
6311
9720bb3a
JB		 6312 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6313
97990a06
JB		 6314 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6315 goto nla_put_failure;
6316 if (wdev->netdev &&
9360ffd1
DM		 6317 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6318 goto nla_put_failure;
97990a06
JB		 6319 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6320 goto nla_put_failure;
2a519311
JB		 6321
6322 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6323 if (!bss)
6324 goto nla_put_failure;
9360ffd1 6325 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6326 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6327 goto nla_put_failure;
9caf0364
JB		 6328
6329 rcu_read_lock();
0e227084
JB		 6330 /* indicate whether we have probe response data or not */
6331 if (rcu_access_pointer(res->proberesp_ies) &&
6332 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6333 goto fail_unlock_rcu;
6334
6335 /* this pointer prefers to be pointed to probe response data
6336 * but is always valid
6337 */
9caf0364 6338 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6339 if (ies) {
6340 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6341 goto fail_unlock_rcu;
8cef2c9d
JB		 6342 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6343 ies->len, ies->data))
6344 goto fail_unlock_rcu;
9caf0364 6345 }
0e227084
JB		 6346
6347 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6348 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6349 if (ies && ies->from_beacon) {
6350 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6351 goto fail_unlock_rcu;
6352 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6353 ies->len, ies->data))
6354 goto fail_unlock_rcu;
9caf0364
JB		 6355 }
6356 rcu_read_unlock();
6357
9360ffd1
DM		 6358 if (res->beacon_interval &&
6359 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6360 goto nla_put_failure;
6361 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6362 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6363 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6364 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6365 jiffies_to_msecs(jiffies - intbss->ts)))
6366 goto nla_put_failure;
2a519311 6367
77965c97 6368 switch (rdev->wiphy.signal_type) {
2a519311 6369 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6370 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6371 goto nla_put_failure;
2a519311
JB		 6372 break;
6373 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6374 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6375 goto nla_put_failure;
2a519311
JB		 6376 break;
6377 default:
6378 break;
6379 }
6380
48ab905d 6381 switch (wdev->iftype) {
074ac8df 6382 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6383 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6384 if (intbss == wdev->current_bss &&
6385 nla_put_u32(msg, NL80211_BSS_STATUS,
6386 NL80211_BSS_STATUS_ASSOCIATED))
6387 goto nla_put_failure;
48ab905d
JB		 6388 break;
6389 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6390 if (intbss == wdev->current_bss &&
6391 nla_put_u32(msg, NL80211_BSS_STATUS,
6392 NL80211_BSS_STATUS_IBSS_JOINED))
6393 goto nla_put_failure;
48ab905d
JB		 6394 break;
6395 default:
6396 break;
6397 }
6398
2a519311
JB		 6399 nla_nest_end(msg, bss);
6400
6401 return genlmsg_end(msg, hdr);
6402
8cef2c9d
JB		 6403 fail_unlock_rcu:
6404 rcu_read_unlock();
2a519311
JB		 6405 nla_put_failure:
6406 genlmsg_cancel(msg, hdr);
6407 return -EMSGSIZE;
6408}
6409
97990a06 6410static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6411{
48ab905d 6412 struct cfg80211_registered_device *rdev;
2a519311 6413 struct cfg80211_internal_bss *scan;
48ab905d 6414 struct wireless_dev *wdev;
97990a06 6415 int start = cb->args[2], idx = 0;
2a519311
JB		 6416 int err;
6417
97990a06 6418 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6419 if (err)
6420 return err;
2a519311 6421
48ab905d
JB		 6422 wdev_lock(wdev);
6423 spin_lock_bh(&rdev->bss_lock);
6424 cfg80211_bss_expire(rdev);
6425
9720bb3a
JB		 6426 cb->seq = rdev->bss_generation;
6427
48ab905d 6428 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6429 if (++idx <= start)
6430 continue;
9720bb3a 6431 if (nl80211_send_bss(skb, cb,
2a519311 6432 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6433 rdev, wdev, scan) < 0) {
2a519311 6434 idx--;
67748893 6435 break;
2a519311
JB		 6436 }
6437 }
6438
48ab905d
JB		 6439 spin_unlock_bh(&rdev->bss_lock);
6440 wdev_unlock(wdev);
2a519311 6441
97990a06
JB		 6442 cb->args[2] = idx;
6443 nl80211_finish_wdev_dump(rdev);
2a519311 6444
67748893 6445 return skb->len;
2a519311
JB		 6446}
6447
15e47304 6448static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6449 int flags, struct net_device *dev,
6450 struct survey_info *survey)
6451{
6452 void *hdr;
6453 struct nlattr *infoattr;
6454
15e47304 6455 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6456 NL80211_CMD_NEW_SURVEY_RESULTS);
6457 if (!hdr)
6458 return -ENOMEM;
6459
9360ffd1
DM		 6460 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6461 goto nla_put_failure;
61fa713c
HS		 6462
6463 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6464 if (!infoattr)
6465 goto nla_put_failure;
6466
9360ffd1
DM		 6467 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6468 survey->channel->center_freq))
6469 goto nla_put_failure;
6470
6471 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6472 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6473 goto nla_put_failure;
6474 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6475 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6476 goto nla_put_failure;
6477 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6478 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6479 survey->channel_time))
6480 goto nla_put_failure;
6481 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6482 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6483 survey->channel_time_busy))
6484 goto nla_put_failure;
6485 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6486 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6487 survey->channel_time_ext_busy))
6488 goto nla_put_failure;
6489 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6490 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6491 survey->channel_time_rx))
6492 goto nla_put_failure;
6493 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6494 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6495 survey->channel_time_tx))
6496 goto nla_put_failure;
61fa713c
HS		 6497
6498 nla_nest_end(msg, infoattr);
6499
6500 return genlmsg_end(msg, hdr);
6501
6502 nla_put_failure:
6503 genlmsg_cancel(msg, hdr);
6504 return -EMSGSIZE;
6505}
6506
6507static int nl80211_dump_survey(struct sk_buff *skb,
6508 struct netlink_callback *cb)
6509{
6510 struct survey_info survey;
1b8ec87a 6511 struct cfg80211_registered_device *rdev;
97990a06
JB		 6512 struct wireless_dev *wdev;
6513 int survey_idx = cb->args[2];
61fa713c
HS		 6514 int res;
6515
1b8ec87a 6516 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6517 if (res)
6518 return res;
61fa713c 6519
97990a06
JB		 6520 if (!wdev->netdev) {
6521 res = -EINVAL;
6522 goto out_err;
6523 }
6524
1b8ec87a 6525 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6526 res = -EOPNOTSUPP;
6527 goto out_err;
6528 }
6529
6530 while (1) {
180cdc79
LR		 6531 struct ieee80211_channel *chan;
6532
1b8ec87a 6533 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6534 if (res == -ENOENT)
6535 break;
6536 if (res)
6537 goto out_err;
6538
180cdc79
LR		 6539 /* Survey without a channel doesn't make sense */
6540 if (!survey.channel) {
6541 res = -EINVAL;
6542 goto out;
6543 }
6544
1b8ec87a 6545 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6546 survey.channel->center_freq);
6547 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6548 survey_idx++;
6549 continue;
6550 }
6551
61fa713c 6552 if (nl80211_send_survey(skb,
15e47304 6553 NETLINK_CB(cb->skb).portid,
61fa713c 6554 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6555 wdev->netdev, &survey) < 0)
61fa713c
HS		 6556 goto out;
6557 survey_idx++;
6558 }
6559
6560 out:
97990a06 6561 cb->args[2] = survey_idx;
61fa713c
HS		 6562 res = skb->len;
6563 out_err:
1b8ec87a 6564 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6565 return res;
6566}
6567
b23aa676
SO		 6568static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6569{
6570 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6571 NL80211_WPA_VERSION_2));
6572}
6573
636a5d36
JM		 6574static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6575{
4c476991
JB		 6576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6577 struct net_device *dev = info->user_ptr[1];
19957bb3 6578 struct ieee80211_channel *chan;
e39e5b5e
JM		 6579 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6580 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6581 enum nl80211_auth_type auth_type;
fffd0934 6582 struct key_parse key;
d5cdfacb 6583 bool local_state_change;
636a5d36 6584
f4a11bb0
JB		 6585 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6586 return -EINVAL;
6587
6588 if (!info->attrs[NL80211_ATTR_MAC])
6589 return -EINVAL;
6590
1778092e
JM		 6591 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6592 return -EINVAL;
6593
19957bb3
JB		 6594 if (!info->attrs[NL80211_ATTR_SSID])
6595 return -EINVAL;
6596
6597 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6598 return -EINVAL;
6599
fffd0934
JB		 6600 err = nl80211_parse_key(info, &key);
6601 if (err)
6602 return err;
6603
6604 if (key.idx >= 0) {
e31b8213
JB		 6605 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6606 return -EINVAL;
fffd0934
JB		 6607 if (!key.p.key || !key.p.key_len)
6608 return -EINVAL;
6609 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6610 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6611 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6612 key.p.key_len != WLAN_KEY_LEN_WEP104))
6613 return -EINVAL;
6614 if (key.idx > 4)
6615 return -EINVAL;
6616 } else {
6617 key.p.key_len = 0;
6618 key.p.key = NULL;
6619 }
6620
afea0b7a
JB		 6621 if (key.idx >= 0) {
6622 int i;
6623 bool ok = false;
6624 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6625 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6626 ok = true;
6627 break;
6628 }
6629 }
4c476991
JB		 6630 if (!ok)
6631 return -EINVAL;
afea0b7a
JB		 6632 }
6633
4c476991
JB		 6634 if (!rdev->ops->auth)
6635 return -EOPNOTSUPP;
636a5d36 6636
074ac8df 6637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6638 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6639 return -EOPNOTSUPP;
eec60b03 6640
19957bb3 6641 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6642 chan = nl80211_get_valid_chan(&rdev->wiphy,
6643 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6644 if (!chan)
4c476991 6645 return -EINVAL;
636a5d36 6646
19957bb3
JB		 6647 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6648 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6649
6650 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6651 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6652 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6653 }
6654
19957bb3 6655 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6656 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6657 return -EINVAL;
636a5d36 6658
e39e5b5e
JM		 6659 if (auth_type == NL80211_AUTHTYPE_SAE &&
6660 !info->attrs[NL80211_ATTR_SAE_DATA])
6661 return -EINVAL;
6662
6663 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6664 if (auth_type != NL80211_AUTHTYPE_SAE)
6665 return -EINVAL;
6666 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6667 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6668 /* need to include at least Auth Transaction and Status Code */
6669 if (sae_data_len < 4)
6670 return -EINVAL;
6671 }
6672
d5cdfacb
JM		 6673 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6674
95de817b
JB		 6675 /*
6676 * Since we no longer track auth state, ignore
6677 * requests to only change local state.
6678 */
6679 if (local_state_change)
6680 return 0;
6681
91bf9b26
JB		 6682 wdev_lock(dev->ieee80211_ptr);
6683 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6684 ssid, ssid_len, ie, ie_len,
6685 key.p.key, key.p.key_len, key.idx,
6686 sae_data, sae_data_len);
6687 wdev_unlock(dev->ieee80211_ptr);
6688 return err;
636a5d36
JM		 6689}
6690
c0692b8f
JB		 6691static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6692 struct genl_info *info,
3dc27d25
JB		 6693 struct cfg80211_crypto_settings *settings,
6694 int cipher_limit)
b23aa676 6695{
c0b2bbd8
JB		 6696 memset(settings, 0, sizeof(*settings));
6697
b23aa676
SO		 6698 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6699
c0692b8f
JB		 6700 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6701 u16 proto;
6702 proto = nla_get_u16(
6703 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6704 settings->control_port_ethertype = cpu_to_be16(proto);
6705 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6706 proto != ETH_P_PAE)
6707 return -EINVAL;
6708 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6709 settings->control_port_no_encrypt = true;
6710 } else
6711 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6712
b23aa676
SO		 6713 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6714 void *data;
6715 int len, i;
6716
6717 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6718 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6719 settings->n_ciphers_pairwise = len / sizeof(u32);
6720
6721 if (len % sizeof(u32))
6722 return -EINVAL;
6723
3dc27d25 6724 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6725 return -EINVAL;
6726
6727 memcpy(settings->ciphers_pairwise, data, len);
6728
6729 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6730 if (!cfg80211_supported_cipher_suite(
6731 &rdev->wiphy,
b23aa676
SO		 6732 settings->ciphers_pairwise[i]))
6733 return -EINVAL;
6734 }
6735
6736 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6737 settings->cipher_group =
6738 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6739 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6740 settings->cipher_group))
b23aa676
SO		 6741 return -EINVAL;
6742 }
6743
6744 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6745 settings->wpa_versions =
6746 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6747 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6748 return -EINVAL;
6749 }
6750
6751 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6752 void *data;
6d30240e 6753 int len;
b23aa676
SO		 6754
6755 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6756 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6757 settings->n_akm_suites = len / sizeof(u32);
6758
6759 if (len % sizeof(u32))
6760 return -EINVAL;
6761
1b9ca027
JM		 6762 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6763 return -EINVAL;
6764
b23aa676 6765 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6766 }
6767
6768 return 0;
6769}
6770
636a5d36
JM		 6771static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6772{
4c476991
JB		 6773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6774 struct net_device *dev = info->user_ptr[1];
f444de05 6775 struct ieee80211_channel *chan;
f62fab73
JB		 6776 struct cfg80211_assoc_request req = {};
6777 const u8 *bssid, *ssid;
6778 int err, ssid_len = 0;
636a5d36 6779
f4a11bb0
JB		 6780 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6781 return -EINVAL;
6782
6783 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6784 !info->attrs[NL80211_ATTR_SSID] ||
6785 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6786 return -EINVAL;
6787
4c476991
JB		 6788 if (!rdev->ops->assoc)
6789 return -EOPNOTSUPP;
636a5d36 6790
074ac8df 6791 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6792 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6793 return -EOPNOTSUPP;
eec60b03 6794
19957bb3 6795 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6796
664834de
JM		 6797 chan = nl80211_get_valid_chan(&rdev->wiphy,
6798 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6799 if (!chan)
4c476991 6800 return -EINVAL;
636a5d36 6801
19957bb3
JB		 6802 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6803 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6804
6805 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6806 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6807 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6808 }
6809
dc6382ce 6810 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6811 enum nl80211_mfp mfp =
dc6382ce 6812 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6813 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6814 req.use_mfp = true;
4c476991
JB		 6815 else if (mfp != NL80211_MFP_NO)
6816 return -EINVAL;
dc6382ce
JM		 6817 }
6818
3e5d7649 6819 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6820 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6821
7e7c8926 6822 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6823 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6824
6825 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6826 memcpy(&req.ht_capa_mask,
6827 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6828 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6829
6830 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6831 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6832 return -EINVAL;
f62fab73
JB		 6833 memcpy(&req.ht_capa,
6834 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6835 sizeof(req.ht_capa));
7e7c8926
BG		 6836 }
6837
ee2aca34 6838 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6839 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6840
6841 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6842 memcpy(&req.vht_capa_mask,
6843 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6844 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6845
6846 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6847 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6848 return -EINVAL;
f62fab73
JB		 6849 memcpy(&req.vht_capa,
6850 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6851 sizeof(req.vht_capa));
ee2aca34
JB		 6852 }
6853
bab5ab7d
AK		 6854 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6855 if (!(rdev->wiphy.features &
6856 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6857 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6858 return -EINVAL;
6859 req.flags |= ASSOC_REQ_USE_RRM;
6860 }
6861
f62fab73 6862 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6863 if (!err) {
6864 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6865 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6866 ssid, ssid_len, &req);
91bf9b26
JB		 6867 wdev_unlock(dev->ieee80211_ptr);
6868 }
636a5d36 6869
636a5d36
JM		 6870 return err;
6871}
6872
6873static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6874{
4c476991
JB		 6875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6876 struct net_device *dev = info->user_ptr[1];
19957bb3 6877 const u8 *ie = NULL, *bssid;
91bf9b26 6878 int ie_len = 0, err;
19957bb3 6879 u16 reason_code;
d5cdfacb 6880 bool local_state_change;
636a5d36 6881
f4a11bb0
JB		 6882 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6883 return -EINVAL;
6884
6885 if (!info->attrs[NL80211_ATTR_MAC])
6886 return -EINVAL;
6887
6888 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6889 return -EINVAL;
6890
4c476991
JB		 6891 if (!rdev->ops->deauth)
6892 return -EOPNOTSUPP;
636a5d36 6893
074ac8df 6894 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6895 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6896 return -EOPNOTSUPP;
eec60b03 6897
19957bb3 6898 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6899
19957bb3
JB		 6900 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6901 if (reason_code == 0) {
f4a11bb0 6902 /* Reason Code 0 is reserved */
4c476991 6903 return -EINVAL;
255e737e 6904 }
636a5d36
JM		 6905
6906 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6907 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6908 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6909 }
6910
d5cdfacb
JM		 6911 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6912
91bf9b26
JB		 6913 wdev_lock(dev->ieee80211_ptr);
6914 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6915 local_state_change);
6916 wdev_unlock(dev->ieee80211_ptr);
6917 return err;
636a5d36
JM		 6918}
6919
6920static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6921{
4c476991
JB		 6922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6923 struct net_device *dev = info->user_ptr[1];
19957bb3 6924 const u8 *ie = NULL, *bssid;
91bf9b26 6925 int ie_len = 0, err;
19957bb3 6926 u16 reason_code;
d5cdfacb 6927 bool local_state_change;
636a5d36 6928
f4a11bb0
JB		 6929 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6930 return -EINVAL;
6931
6932 if (!info->attrs[NL80211_ATTR_MAC])
6933 return -EINVAL;
6934
6935 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6936 return -EINVAL;
6937
4c476991
JB		 6938 if (!rdev->ops->disassoc)
6939 return -EOPNOTSUPP;
636a5d36 6940
074ac8df 6941 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6942 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6943 return -EOPNOTSUPP;
eec60b03 6944
19957bb3 6945 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6946
19957bb3
JB		 6947 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6948 if (reason_code == 0) {
f4a11bb0 6949 /* Reason Code 0 is reserved */
4c476991 6950 return -EINVAL;
255e737e 6951 }
636a5d36
JM		 6952
6953 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6954 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6955 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6956 }
6957
d5cdfacb
JM		 6958 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6959
91bf9b26
JB		 6960 wdev_lock(dev->ieee80211_ptr);
6961 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6962 local_state_change);
6963 wdev_unlock(dev->ieee80211_ptr);
6964 return err;
636a5d36
JM		 6965}
6966
dd5b4cc7
FF		 6967static bool
6968nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6969 int mcast_rate[IEEE80211_NUM_BANDS],
6970 int rateval)
6971{
6972 struct wiphy *wiphy = &rdev->wiphy;
6973 bool found = false;
6974 int band, i;
6975
6976 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6977 struct ieee80211_supported_band *sband;
6978
6979 sband = wiphy->bands[band];
6980 if (!sband)
6981 continue;
6982
6983 for (i = 0; i < sband->n_bitrates; i++) {
6984 if (sband->bitrates[i].bitrate == rateval) {
6985 mcast_rate[band] = i + 1;
6986 found = true;
6987 break;
6988 }
6989 }
6990 }
6991
6992 return found;
6993}
6994
04a773ad
JB		 6995static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6996{
4c476991
JB		 6997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6998 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6999 struct cfg80211_ibss_params ibss;
7000 struct wiphy *wiphy;
fffd0934 7001 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7002 int err;
7003
8e30bc55
JB		 7004 memset(&ibss, 0, sizeof(ibss));
7005
04a773ad
JB		 7006 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7007 return -EINVAL;
7008
683b6d3b 7009 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7010 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7011 return -EINVAL;
7012
8e30bc55
JB		 7013 ibss.beacon_interval = 100;
7014
7015 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7016 ibss.beacon_interval =
7017 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7018 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7019 return -EINVAL;
7020 }
7021
4c476991
JB		 7022 if (!rdev->ops->join_ibss)
7023 return -EOPNOTSUPP;
04a773ad 7024
4c476991
JB		 7025 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7026 return -EOPNOTSUPP;
04a773ad 7027
79c97e97 7028 wiphy = &rdev->wiphy;
04a773ad 7029
39193498 7030 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7031 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7032
7033 if (!is_valid_ether_addr(ibss.bssid))
7034 return -EINVAL;
7035 }
04a773ad
JB		 7036 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7037 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7038
7039 if (info->attrs[NL80211_ATTR_IE]) {
7040 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7041 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7042 }
7043
683b6d3b
JB		 7044 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7045 if (err)
7046 return err;
04a773ad 7047
174e0cd2
IP		 7048 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7049 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7050 return -EINVAL;
7051
2f301ab2 7052 switch (ibss.chandef.width) {
bf372645
SW		 7053 case NL80211_CHAN_WIDTH_5:
7054 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7055 case NL80211_CHAN_WIDTH_20_NOHT:
7056 break;
7057 case NL80211_CHAN_WIDTH_20:
7058 case NL80211_CHAN_WIDTH_40:
7059 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7060 break;
7061 default:
c04d6150 7062 return -EINVAL;
2f301ab2 7063 }
db9c64cf 7064
04a773ad 7065 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7066 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7067
fbd2c8dc
TP		 7068 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7069 u8 *rates =
7070 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7071 int n_rates =
7072 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7073 struct ieee80211_supported_band *sband =
683b6d3b 7074 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7075
34850ab2
JB		 7076 err = ieee80211_get_ratemask(sband, rates, n_rates,
7077 &ibss.basic_rates);
7078 if (err)
7079 return err;
fbd2c8dc 7080 }
dd5b4cc7 7081
803768f5
SW		 7082 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7083 memcpy(&ibss.ht_capa_mask,
7084 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7085 sizeof(ibss.ht_capa_mask));
7086
7087 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7088 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7089 return -EINVAL;
7090 memcpy(&ibss.ht_capa,
7091 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7092 sizeof(ibss.ht_capa));
7093 }
7094
dd5b4cc7
FF		 7095 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7096 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7097 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7098 return -EINVAL;
fbd2c8dc 7099
4c476991 7100 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7101 bool no_ht = false;
7102
4c476991 7103 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7104 info->attrs[NL80211_ATTR_KEYS],
7105 &no_ht);
4c476991
JB		 7106 if (IS_ERR(connkeys))
7107 return PTR_ERR(connkeys);
de7044ee 7108
3d9d1d66
JB		 7109 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7110 no_ht) {
de7044ee
SM		 7111 kfree(connkeys);
7112 return -EINVAL;
7113 }
4c476991 7114 }
04a773ad 7115
267335d6
AQ		 7116 ibss.control_port =
7117 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7118
5336fa88
SW		 7119 ibss.userspace_handles_dfs =
7120 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7121
4c476991 7122 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7123 if (err)
b47f610b 7124 kzfree(connkeys);
04a773ad
JB		 7125 return err;
7126}
7127
7128static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7129{
4c476991
JB		 7130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7131 struct net_device *dev = info->user_ptr[1];
04a773ad 7132
4c476991
JB		 7133 if (!rdev->ops->leave_ibss)
7134 return -EOPNOTSUPP;
04a773ad 7135
4c476991
JB		 7136 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7137 return -EOPNOTSUPP;
04a773ad 7138
4c476991 7139 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7140}
7141
f4e583c8
AQ		 7142static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7143{
7144 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7145 struct net_device *dev = info->user_ptr[1];
7146 int mcast_rate[IEEE80211_NUM_BANDS];
7147 u32 nla_rate;
7148 int err;
7149
7150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7152 return -EOPNOTSUPP;
7153
7154 if (!rdev->ops->set_mcast_rate)
7155 return -EOPNOTSUPP;
7156
7157 memset(mcast_rate, 0, sizeof(mcast_rate));
7158
7159 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7160 return -EINVAL;
7161
7162 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7163 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7164 return -EINVAL;
7165
7166 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7167
7168 return err;
7169}
7170
ad7e718c
JB		 7171static struct sk_buff *
7172__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7173 int approxlen, u32 portid, u32 seq,
7174 enum nl80211_commands cmd,
567ffc35
JB		 7175 enum nl80211_attrs attr,
7176 const struct nl80211_vendor_cmd_info *info,
7177 gfp_t gfp)
ad7e718c
JB		 7178{
7179 struct sk_buff *skb;
7180 void *hdr;
7181 struct nlattr *data;
7182
7183 skb = nlmsg_new(approxlen + 100, gfp);
7184 if (!skb)
7185 return NULL;
7186
7187 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7188 if (!hdr) {
7189 kfree_skb(skb);
7190 return NULL;
7191 }
7192
7193 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7194 goto nla_put_failure;
567ffc35
JB		 7195
7196 if (info) {
7197 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7198 info->vendor_id))
7199 goto nla_put_failure;
7200 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7201 info->subcmd))
7202 goto nla_put_failure;
7203 }
7204
ad7e718c
JB		 7205 data = nla_nest_start(skb, attr);
7206
7207 ((void **)skb->cb)[0] = rdev;
7208 ((void **)skb->cb)[1] = hdr;
7209 ((void **)skb->cb)[2] = data;
7210
7211 return skb;
7212
7213 nla_put_failure:
7214 kfree_skb(skb);
7215 return NULL;
7216}
f4e583c8 7217
e03ad6ea
JB		 7218struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7219 enum nl80211_commands cmd,
7220 enum nl80211_attrs attr,
7221 int vendor_event_idx,
7222 int approxlen, gfp_t gfp)
7223{
f26cbf40 7224 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7225 const struct nl80211_vendor_cmd_info *info;
7226
7227 switch (cmd) {
7228 case NL80211_CMD_TESTMODE:
7229 if (WARN_ON(vendor_event_idx != -1))
7230 return NULL;
7231 info = NULL;
7232 break;
7233 case NL80211_CMD_VENDOR:
7234 if (WARN_ON(vendor_event_idx < 0 ||
7235 vendor_event_idx >= wiphy->n_vendor_events))
7236 return NULL;
7237 info = &wiphy->vendor_events[vendor_event_idx];
7238 break;
7239 default:
7240 WARN_ON(1);
7241 return NULL;
7242 }
7243
7244 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7245 cmd, attr, info, gfp);
7246}
7247EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7248
7249void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7250{
7251 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7252 void *hdr = ((void **)skb->cb)[1];
7253 struct nlattr *data = ((void **)skb->cb)[2];
7254 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7255
bd8c78e7
JB		 7256 /* clear CB data for netlink core to own from now on */
7257 memset(skb->cb, 0, sizeof(skb->cb));
7258
e03ad6ea
JB		 7259 nla_nest_end(skb, data);
7260 genlmsg_end(skb, hdr);
7261
7262 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7263 mcgrp = NL80211_MCGRP_VENDOR;
7264
7265 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7266 mcgrp, gfp);
7267}
7268EXPORT_SYMBOL(__cfg80211_send_event_skb);
7269
aff89a9b 7270#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7271static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7272{
4c476991 7273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7274 struct wireless_dev *wdev =
7275 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7276 int err;
7277
fc73f11f
DS		 7278 if (!rdev->ops->testmode_cmd)
7279 return -EOPNOTSUPP;
7280
7281 if (IS_ERR(wdev)) {
7282 err = PTR_ERR(wdev);
7283 if (err != -EINVAL)
7284 return err;
7285 wdev = NULL;
7286 } else if (wdev->wiphy != &rdev->wiphy) {
7287 return -EINVAL;
7288 }
7289
aff89a9b
JB		 7290 if (!info->attrs[NL80211_ATTR_TESTDATA])
7291 return -EINVAL;
7292
ad7e718c 7293 rdev->cur_cmd_info = info;
fc73f11f 7294 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7295 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7296 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7297 rdev->cur_cmd_info = NULL;
aff89a9b 7298
aff89a9b
JB		 7299 return err;
7300}
7301
71063f0e
WYG		 7302static int nl80211_testmode_dump(struct sk_buff *skb,
7303 struct netlink_callback *cb)
7304{
00918d33 7305 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7306 int err;
7307 long phy_idx;
7308 void *data = NULL;
7309 int data_len = 0;
7310
5fe231e8
JB		 7311 rtnl_lock();
7312
71063f0e
WYG		 7313 if (cb->args[0]) {
7314 /*
7315 * 0 is a valid index, but not valid for args[0],
7316 * so we need to offset by 1.
7317 */
7318 phy_idx = cb->args[0] - 1;
7319 } else {
7320 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7321 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7322 nl80211_policy);
7323 if (err)
5fe231e8 7324 goto out_err;
00918d33 7325
2bd7e35d
JB		 7326 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7327 nl80211_fam.attrbuf);
7328 if (IS_ERR(rdev)) {
5fe231e8
JB		 7329 err = PTR_ERR(rdev);
7330 goto out_err;
00918d33 7331 }
2bd7e35d
JB		 7332 phy_idx = rdev->wiphy_idx;
7333 rdev = NULL;
2bd7e35d 7334
71063f0e
WYG		 7335 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7336 cb->args[1] =
7337 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7338 }
7339
7340 if (cb->args[1]) {
7341 data = nla_data((void *)cb->args[1]);
7342 data_len = nla_len((void *)cb->args[1]);
7343 }
7344
00918d33
JB		 7345 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7346 if (!rdev) {
5fe231e8
JB		 7347 err = -ENOENT;
7348 goto out_err;
71063f0e 7349 }
71063f0e 7350
00918d33 7351 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7352 err = -EOPNOTSUPP;
7353 goto out_err;
7354 }
7355
7356 while (1) {
15e47304 7357 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7358 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7359 NL80211_CMD_TESTMODE);
7360 struct nlattr *tmdata;
7361
cb35fba3
DC		 7362 if (!hdr)
7363 break;
7364
9360ffd1 7365 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7366 genlmsg_cancel(skb, hdr);
7367 break;
7368 }
7369
7370 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7371 if (!tmdata) {
7372 genlmsg_cancel(skb, hdr);
7373 break;
7374 }
e35e4d28 7375 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7376 nla_nest_end(skb, tmdata);
7377
7378 if (err == -ENOBUFS || err == -ENOENT) {
7379 genlmsg_cancel(skb, hdr);
7380 break;
7381 } else if (err) {
7382 genlmsg_cancel(skb, hdr);
7383 goto out_err;
7384 }
7385
7386 genlmsg_end(skb, hdr);
7387 }
7388
7389 err = skb->len;
7390 /* see above */
7391 cb->args[0] = phy_idx + 1;
7392 out_err:
5fe231e8 7393 rtnl_unlock();
71063f0e
WYG		 7394 return err;
7395}
aff89a9b
JB		 7396#endif
7397
b23aa676
SO		 7398static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7399{
4c476991
JB		 7400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7401 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7402 struct cfg80211_connect_params connect;
7403 struct wiphy *wiphy;
fffd0934 7404 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7405 int err;
7406
7407 memset(&connect, 0, sizeof(connect));
7408
7409 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7410 return -EINVAL;
7411
7412 if (!info->attrs[NL80211_ATTR_SSID] ||
7413 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7414 return -EINVAL;
7415
7416 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7417 connect.auth_type =
7418 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7419 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7420 NL80211_CMD_CONNECT))
b23aa676
SO		 7421 return -EINVAL;
7422 } else
7423 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7424
7425 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7426
c0692b8f 7427 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7428 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7429 if (err)
7430 return err;
b23aa676 7431
074ac8df 7432 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7433 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7434 return -EOPNOTSUPP;
b23aa676 7435
79c97e97 7436 wiphy = &rdev->wiphy;
b23aa676 7437
4486ea98
BS		 7438 connect.bg_scan_period = -1;
7439 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7440 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7441 connect.bg_scan_period =
7442 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7443 }
7444
b23aa676
SO		 7445 if (info->attrs[NL80211_ATTR_MAC])
7446 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7447 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7448 connect.bssid_hint =
7449 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7450 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7451 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7452
7453 if (info->attrs[NL80211_ATTR_IE]) {
7454 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7455 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7456 }
7457
cee00a95
JM		 7458 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7459 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7460 if (connect.mfp != NL80211_MFP_REQUIRED &&
7461 connect.mfp != NL80211_MFP_NO)
7462 return -EINVAL;
7463 } else {
7464 connect.mfp = NL80211_MFP_NO;
7465 }
7466
b23aa676 7467 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7468 connect.channel = nl80211_get_valid_chan(
7469 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7470 if (!connect.channel)
1df4a510
JM		 7471 return -EINVAL;
7472 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7473 connect.channel_hint = nl80211_get_valid_chan(
7474 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7475 if (!connect.channel_hint)
4c476991 7476 return -EINVAL;
b23aa676
SO		 7477 }
7478
fffd0934
JB		 7479 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7480 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7481 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7482 if (IS_ERR(connkeys))
7483 return PTR_ERR(connkeys);
fffd0934
JB		 7484 }
7485
7e7c8926
BG		 7486 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7487 connect.flags |= ASSOC_REQ_DISABLE_HT;
7488
7489 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7490 memcpy(&connect.ht_capa_mask,
7491 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7492 sizeof(connect.ht_capa_mask));
7493
7494 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7495 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7496 kzfree(connkeys);
7e7c8926 7497 return -EINVAL;
b4e4f47e 7498 }
7e7c8926
BG		 7499 memcpy(&connect.ht_capa,
7500 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7501 sizeof(connect.ht_capa));
7502 }
7503
ee2aca34
JB		 7504 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7505 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7506
7507 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7508 memcpy(&connect.vht_capa_mask,
7509 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7510 sizeof(connect.vht_capa_mask));
7511
7512 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7513 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7514 kzfree(connkeys);
ee2aca34
JB		 7515 return -EINVAL;
7516 }
7517 memcpy(&connect.vht_capa,
7518 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7519 sizeof(connect.vht_capa));
7520 }
7521
bab5ab7d
AK		 7522 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7523 if (!(rdev->wiphy.features &
7524 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7525 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7526 return -EINVAL;
7527 connect.flags |= ASSOC_REQ_USE_RRM;
7528 }
7529
83739b03
JB		 7530 wdev_lock(dev->ieee80211_ptr);
7531 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7532 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7533 if (err)
b47f610b 7534 kzfree(connkeys);
b23aa676
SO		 7535 return err;
7536}
7537
7538static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7539{
4c476991
JB		 7540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7541 struct net_device *dev = info->user_ptr[1];
b23aa676 7542 u16 reason;
83739b03 7543 int ret;
b23aa676
SO		 7544
7545 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7546 reason = WLAN_REASON_DEAUTH_LEAVING;
7547 else
7548 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7549
7550 if (reason == 0)
7551 return -EINVAL;
7552
074ac8df 7553 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7554 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7555 return -EOPNOTSUPP;
b23aa676 7556
83739b03
JB		 7557 wdev_lock(dev->ieee80211_ptr);
7558 ret = cfg80211_disconnect(rdev, dev, reason, true);
7559 wdev_unlock(dev->ieee80211_ptr);
7560 return ret;
b23aa676
SO		 7561}
7562
463d0183
JB		 7563static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7564{
4c476991 7565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7566 struct net *net;
7567 int err;
7568 u32 pid;
7569
7570 if (!info->attrs[NL80211_ATTR_PID])
7571 return -EINVAL;
7572
7573 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7574
463d0183 7575 net = get_net_ns_by_pid(pid);
4c476991
JB		 7576 if (IS_ERR(net))
7577 return PTR_ERR(net);
463d0183
JB		 7578
7579 err = 0;
7580
7581 /* check if anything to do */
4c476991
JB		 7582 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7583 err = cfg80211_switch_netns(rdev, net);
463d0183 7584
463d0183 7585 put_net(net);
463d0183
JB		 7586 return err;
7587}
7588
67fbb16b
SO		 7589static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7590{
4c476991 7591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7592 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7593 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7594 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7595 struct cfg80211_pmksa pmksa;
7596
7597 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7598
7599 if (!info->attrs[NL80211_ATTR_MAC])
7600 return -EINVAL;
7601
7602 if (!info->attrs[NL80211_ATTR_PMKID])
7603 return -EINVAL;
7604
67fbb16b
SO		 7605 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7606 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7607
074ac8df 7608 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7609 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7610 return -EOPNOTSUPP;
67fbb16b
SO		 7611
7612 switch (info->genlhdr->cmd) {
7613 case NL80211_CMD_SET_PMKSA:
7614 rdev_ops = rdev->ops->set_pmksa;
7615 break;
7616 case NL80211_CMD_DEL_PMKSA:
7617 rdev_ops = rdev->ops->del_pmksa;
7618 break;
7619 default:
7620 WARN_ON(1);
7621 break;
7622 }
7623
4c476991
JB		 7624 if (!rdev_ops)
7625 return -EOPNOTSUPP;
67fbb16b 7626
4c476991 7627 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7628}
7629
7630static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7631{
4c476991
JB		 7632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7633 struct net_device *dev = info->user_ptr[1];
67fbb16b 7634
074ac8df 7635 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7636 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7637 return -EOPNOTSUPP;
67fbb16b 7638
4c476991
JB		 7639 if (!rdev->ops->flush_pmksa)
7640 return -EOPNOTSUPP;
67fbb16b 7641
e35e4d28 7642 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7643}
7644
109086ce
AN		 7645static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7646{
7647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7648 struct net_device *dev = info->user_ptr[1];
7649 u8 action_code, dialog_token;
df942e7b 7650 u32 peer_capability = 0;
109086ce
AN		 7651 u16 status_code;
7652 u8 *peer;
31fa97c5 7653 bool initiator;
109086ce
AN		 7654
7655 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7656 !rdev->ops->tdls_mgmt)
7657 return -EOPNOTSUPP;
7658
7659 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7660 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7661 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7662 !info->attrs[NL80211_ATTR_IE] ||
7663 !info->attrs[NL80211_ATTR_MAC])
7664 return -EINVAL;
7665
7666 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7667 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7668 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7669 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7670 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7671 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7672 peer_capability =
7673 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7674
e35e4d28 7675 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7676 dialog_token, status_code, peer_capability,
31fa97c5 7677 initiator,
e35e4d28
HG		 7678 nla_data(info->attrs[NL80211_ATTR_IE]),
7679 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7680}
7681
7682static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7683{
7684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7685 struct net_device *dev = info->user_ptr[1];
7686 enum nl80211_tdls_operation operation;
7687 u8 *peer;
7688
7689 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7690 !rdev->ops->tdls_oper)
7691 return -EOPNOTSUPP;
7692
7693 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7694 !info->attrs[NL80211_ATTR_MAC])
7695 return -EINVAL;
7696
7697 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7698 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7699
e35e4d28 7700 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7701}
7702
9588bbd5
JM		 7703static int nl80211_remain_on_channel(struct sk_buff *skb,
7704 struct genl_info *info)
7705{
4c476991 7706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7707 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7708 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7709 struct sk_buff *msg;
7710 void *hdr;
7711 u64 cookie;
683b6d3b 7712 u32 duration;
9588bbd5
JM		 7713 int err;
7714
7715 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7716 !info->attrs[NL80211_ATTR_DURATION])
7717 return -EINVAL;
7718
7719 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7720
ebf348fc
JB		 7721 if (!rdev->ops->remain_on_channel ||
7722 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7723 return -EOPNOTSUPP;
7724
9588bbd5 7725 /*
ebf348fc
JB		 7726 * We should be on that channel for at least a minimum amount of
7727 * time (10ms) but no longer than the driver supports.
9588bbd5 7728 */
ebf348fc 7729 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7730 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7731 return -EINVAL;
7732
683b6d3b
JB		 7733 err = nl80211_parse_chandef(rdev, info, &chandef);
7734 if (err)
7735 return err;
9588bbd5
JM		 7736
7737 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7738 if (!msg)
7739 return -ENOMEM;
9588bbd5 7740
15e47304 7741 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7742 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7743 if (!hdr) {
7744 err = -ENOBUFS;
9588bbd5
JM		 7745 goto free_msg;
7746 }
7747
683b6d3b
JB		 7748 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7749 duration, &cookie);
9588bbd5
JM		 7750
7751 if (err)
7752 goto free_msg;
7753
9360ffd1
DM		 7754 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7755 goto nla_put_failure;
9588bbd5
JM		 7756
7757 genlmsg_end(msg, hdr);
4c476991
JB		 7758
7759 return genlmsg_reply(msg, info);
9588bbd5
JM		 7760
7761 nla_put_failure:
7762 err = -ENOBUFS;
7763 free_msg:
7764 nlmsg_free(msg);
9588bbd5
JM		 7765 return err;
7766}
7767
7768static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7769 struct genl_info *info)
7770{
4c476991 7771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7772 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7773 u64 cookie;
9588bbd5
JM		 7774
7775 if (!info->attrs[NL80211_ATTR_COOKIE])
7776 return -EINVAL;
7777
4c476991
JB		 7778 if (!rdev->ops->cancel_remain_on_channel)
7779 return -EOPNOTSUPP;
9588bbd5 7780
9588bbd5
JM		 7781 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7782
e35e4d28 7783 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7784}
7785
13ae75b1
JM		 7786static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7787 u8 *rates, u8 rates_len)
7788{
7789 u8 i;
7790 u32 mask = 0;
7791
7792 for (i = 0; i < rates_len; i++) {
7793 int rate = (rates[i] & 0x7f) * 5;
7794 int ridx;
7795 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7796 struct ieee80211_rate *srate =
7797 &sband->bitrates[ridx];
7798 if (rate == srate->bitrate) {
7799 mask |= 1 << ridx;
7800 break;
7801 }
7802 }
7803 if (ridx == sband->n_bitrates)
7804 return 0; /* rate not found */
7805 }
7806
7807 return mask;
7808}
7809
24db78c0
SW		 7810static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7811 u8 *rates, u8 rates_len,
7812 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7813{
7814 u8 i;
7815
7816 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7817
7818 for (i = 0; i < rates_len; i++) {
7819 int ridx, rbit;
7820
7821 ridx = rates[i] / 8;
7822 rbit = BIT(rates[i] % 8);
7823
7824 /* check validity */
910570b5 7825 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7826 return false;
7827
7828 /* check availability */
7829 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7830 mcs[ridx] |= rbit;
7831 else
7832 return false;
7833 }
7834
7835 return true;
7836}
7837
204e35a9
JD		 7838static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7839{
7840 u16 mcs_mask = 0;
7841
7842 switch (vht_mcs_map) {
7843 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7844 break;
7845 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7846 mcs_mask = 0x00FF;
7847 break;
7848 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7849 mcs_mask = 0x01FF;
7850 break;
7851 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7852 mcs_mask = 0x03FF;
7853 break;
7854 default:
7855 break;
7856 }
7857
7858 return mcs_mask;
7859}
7860
7861static void vht_build_mcs_mask(u16 vht_mcs_map,
7862 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7863{
7864 u8 nss;
7865
7866 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7867 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7868 vht_mcs_map >>= 2;
7869 }
7870}
7871
7872static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7873 struct nl80211_txrate_vht *txrate,
7874 u16 mcs[NL80211_VHT_NSS_MAX])
7875{
7876 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7877 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7878 u8 i;
7879
7880 if (!sband->vht_cap.vht_supported)
7881 return false;
7882
7883 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7884
7885 /* Build vht_mcs_mask from VHT capabilities */
7886 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7887
7888 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7889 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7890 mcs[i] = txrate->mcs[i];
7891 else
7892 return false;
7893 }
7894
7895 return true;
7896}
7897
b54452b0 7898static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7899 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7900 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7901 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7902 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7903 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7904 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7905};
7906
7907static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7908 struct genl_info *info)
7909{
7910 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7912 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7913 int rem, i;
7914 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7915 struct nlattr *tx_rates;
7916 struct ieee80211_supported_band *sband;
204e35a9 7917 u16 vht_tx_mcs_map;
13ae75b1 7918
4c476991
JB		 7919 if (!rdev->ops->set_bitrate_mask)
7920 return -EOPNOTSUPP;
13ae75b1
JM		 7921
7922 memset(&mask, 0, sizeof(mask));
7923 /* Default to all rates enabled */
7924 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7925 sband = rdev->wiphy.bands[i];
7869303b
JD		 7926
7927 if (!sband)
7928 continue;
7929
7930 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7931 memcpy(mask.control[i].ht_mcs,
7869303b 7932 sband->ht_cap.mcs.rx_mask,
d1e33e65 7933 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7934
7935 if (!sband->vht_cap.vht_supported)
7936 continue;
7937
7938 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7939 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7940 }
7941
b9243ab0
JD		 7942 /* if no rates are given set it back to the defaults */
7943 if (!info->attrs[NL80211_ATTR_TX_RATES])
7944 goto out;
7945
13ae75b1
JM		 7946 /*
7947 * The nested attribute uses enum nl80211_band as the index. This maps
7948 * directly to the enum ieee80211_band values used in cfg80211.
7949 */
24db78c0 7950 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7951 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7952 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7953 int err;
7954
4c476991
JB		 7955 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7956 return -EINVAL;
13ae75b1 7957 sband = rdev->wiphy.bands[band];
4c476991
JB		 7958 if (sband == NULL)
7959 return -EINVAL;
ae811e21
JB		 7960 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7961 nla_len(tx_rates), nl80211_txattr_policy);
7962 if (err)
7963 return err;
13ae75b1
JM		 7964 if (tb[NL80211_TXRATE_LEGACY]) {
7965 mask.control[band].legacy = rateset_to_mask(
7966 sband,
7967 nla_data(tb[NL80211_TXRATE_LEGACY]),
7968 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7969 if ((mask.control[band].legacy == 0) &&
7970 nla_len(tb[NL80211_TXRATE_LEGACY]))
7971 return -EINVAL;
24db78c0 7972 }
d1e33e65 7973 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7974 if (!ht_rateset_to_mask(
7975 sband,
d1e33e65
JD		 7976 nla_data(tb[NL80211_TXRATE_HT]),
7977 nla_len(tb[NL80211_TXRATE_HT]),
7978 mask.control[band].ht_mcs))
24db78c0
SW		 7979 return -EINVAL;
7980 }
204e35a9
JD		 7981 if (tb[NL80211_TXRATE_VHT]) {
7982 if (!vht_set_mcs_mask(
7983 sband,
7984 nla_data(tb[NL80211_TXRATE_VHT]),
7985 mask.control[band].vht_mcs))
7986 return -EINVAL;
7987 }
0b9323f6
JD		 7988 if (tb[NL80211_TXRATE_GI]) {
7989 mask.control[band].gi =
7990 nla_get_u8(tb[NL80211_TXRATE_GI]);
7991 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7992 return -EINVAL;
7993 }
24db78c0
SW		 7994
7995 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7996 /* don't allow empty legacy rates if HT or VHT
7997 * are not even supported.
7998 */
7999 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8000 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8001 return -EINVAL;
8002
8003 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8004 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8005 goto out;
8006
8007 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8008 if (mask.control[band].vht_mcs[i])
8009 goto out;
24db78c0
SW		 8010
8011 /* legacy and mcs rates may not be both empty */
204e35a9 8012 return -EINVAL;
13ae75b1
JM		 8013 }
8014 }
8015
b9243ab0 8016out:
e35e4d28 8017 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8018}
8019
2e161f78 8020static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8021{
4c476991 8022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8023 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8024 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8025
8026 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8027 return -EINVAL;
8028
2e161f78
JB		 8029 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8030 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8031
71bbc994
JB		 8032 switch (wdev->iftype) {
8033 case NL80211_IFTYPE_STATION:
8034 case NL80211_IFTYPE_ADHOC:
8035 case NL80211_IFTYPE_P2P_CLIENT:
8036 case NL80211_IFTYPE_AP:
8037 case NL80211_IFTYPE_AP_VLAN:
8038 case NL80211_IFTYPE_MESH_POINT:
8039 case NL80211_IFTYPE_P2P_GO:
98104fde 8040 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8041 break;
8042 default:
4c476991 8043 return -EOPNOTSUPP;
71bbc994 8044 }
026331c4
JM		 8045
8046 /* not much point in registering if we can't reply */
4c476991
JB		 8047 if (!rdev->ops->mgmt_tx)
8048 return -EOPNOTSUPP;
026331c4 8049
15e47304 8050 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8051 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8052 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8053}
8054
2e161f78 8055static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8056{
4c476991 8057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8058 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8059 struct cfg80211_chan_def chandef;
026331c4 8060 int err;
d64d373f 8061 void *hdr = NULL;
026331c4 8062 u64 cookie;
e247bd90 8063 struct sk_buff *msg = NULL;
b176e629
AO		 8064 struct cfg80211_mgmt_tx_params params = {
8065 .dont_wait_for_ack =
8066 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8067 };
026331c4 8068
683b6d3b 8069 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8070 return -EINVAL;
8071
4c476991
JB		 8072 if (!rdev->ops->mgmt_tx)
8073 return -EOPNOTSUPP;
026331c4 8074
71bbc994 8075 switch (wdev->iftype) {
ea141b75
AQ		 8076 case NL80211_IFTYPE_P2P_DEVICE:
8077 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8078 return -EINVAL;
71bbc994
JB		 8079 case NL80211_IFTYPE_STATION:
8080 case NL80211_IFTYPE_ADHOC:
8081 case NL80211_IFTYPE_P2P_CLIENT:
8082 case NL80211_IFTYPE_AP:
8083 case NL80211_IFTYPE_AP_VLAN:
8084 case NL80211_IFTYPE_MESH_POINT:
8085 case NL80211_IFTYPE_P2P_GO:
8086 break;
8087 default:
4c476991 8088 return -EOPNOTSUPP;
71bbc994 8089 }
026331c4 8090
f7ca38df 8091 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8092 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8093 return -EINVAL;
b176e629 8094 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8095
8096 /*
8097 * We should wait on the channel for at least a minimum amount
8098 * of time (10ms) but no longer than the driver supports.
8099 */
b176e629
AO		 8100 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8101 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8102 return -EINVAL;
8103
f7ca38df
JB		 8104 }
8105
b176e629 8106 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8107
b176e629 8108 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8109 return -EINVAL;
8110
b176e629 8111 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8112
ea141b75
AQ		 8113 /* get the channel if any has been specified, otherwise pass NULL to
8114 * the driver. The latter will use the current one
8115 */
8116 chandef.chan = NULL;
8117 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8118 err = nl80211_parse_chandef(rdev, info, &chandef);
8119 if (err)
8120 return err;
8121 }
8122
b176e629 8123 if (!chandef.chan && params.offchan)
ea141b75 8124 return -EINVAL;
026331c4 8125
34d22ce2
AO		 8126 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8127 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8128
8129 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8130 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8131 int i;
8132
8133 if (len % sizeof(u16))
8134 return -EINVAL;
8135
8136 params.n_csa_offsets = len / sizeof(u16);
8137 params.csa_offsets =
8138 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8139
8140 /* check that all the offsets fit the frame */
8141 for (i = 0; i < params.n_csa_offsets; i++) {
8142 if (params.csa_offsets[i] >= params.len)
8143 return -EINVAL;
8144 }
8145 }
8146
b176e629 8147 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8148 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8149 if (!msg)
8150 return -ENOMEM;
026331c4 8151
15e47304 8152 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8153 NL80211_CMD_FRAME);
cb35fba3
DC		 8154 if (!hdr) {
8155 err = -ENOBUFS;
e247bd90
JB		 8156 goto free_msg;
8157 }
026331c4 8158 }
e247bd90 8159
b176e629
AO		 8160 params.chan = chandef.chan;
8161 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8162 if (err)
8163 goto free_msg;
8164
e247bd90 8165 if (msg) {
9360ffd1
DM		 8166 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8167 goto nla_put_failure;
026331c4 8168
e247bd90
JB		 8169 genlmsg_end(msg, hdr);
8170 return genlmsg_reply(msg, info);
8171 }
8172
8173 return 0;
026331c4
JM		 8174
8175 nla_put_failure:
8176 err = -ENOBUFS;
8177 free_msg:
8178 nlmsg_free(msg);
026331c4
JM		 8179 return err;
8180}
8181
f7ca38df
JB		 8182static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8183{
8184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8185 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8186 u64 cookie;
8187
8188 if (!info->attrs[NL80211_ATTR_COOKIE])
8189 return -EINVAL;
8190
8191 if (!rdev->ops->mgmt_tx_cancel_wait)
8192 return -EOPNOTSUPP;
8193
71bbc994
JB		 8194 switch (wdev->iftype) {
8195 case NL80211_IFTYPE_STATION:
8196 case NL80211_IFTYPE_ADHOC:
8197 case NL80211_IFTYPE_P2P_CLIENT:
8198 case NL80211_IFTYPE_AP:
8199 case NL80211_IFTYPE_AP_VLAN:
8200 case NL80211_IFTYPE_P2P_GO:
98104fde 8201 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8202 break;
8203 default:
f7ca38df 8204 return -EOPNOTSUPP;
71bbc994 8205 }
f7ca38df
JB		 8206
8207 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8208
e35e4d28 8209 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8210}
8211
ffb9eb3d
KV		 8212static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8213{
4c476991 8214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8215 struct wireless_dev *wdev;
4c476991 8216 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8217 u8 ps_state;
8218 bool state;
8219 int err;
8220
4c476991
JB		 8221 if (!info->attrs[NL80211_ATTR_PS_STATE])
8222 return -EINVAL;
ffb9eb3d
KV		 8223
8224 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8225
4c476991
JB		 8226 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8227 return -EINVAL;
ffb9eb3d
KV		 8228
8229 wdev = dev->ieee80211_ptr;
8230
4c476991
JB		 8231 if (!rdev->ops->set_power_mgmt)
8232 return -EOPNOTSUPP;
ffb9eb3d
KV		 8233
8234 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8235
8236 if (state == wdev->ps)
4c476991 8237 return 0;
ffb9eb3d 8238
e35e4d28 8239 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8240 if (!err)
8241 wdev->ps = state;
ffb9eb3d
KV		 8242 return err;
8243}
8244
8245static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8246{
4c476991 8247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8248 enum nl80211_ps_state ps_state;
8249 struct wireless_dev *wdev;
4c476991 8250 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8251 struct sk_buff *msg;
8252 void *hdr;
8253 int err;
8254
ffb9eb3d
KV		 8255 wdev = dev->ieee80211_ptr;
8256
4c476991
JB		 8257 if (!rdev->ops->set_power_mgmt)
8258 return -EOPNOTSUPP;
ffb9eb3d
KV		 8259
8260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8261 if (!msg)
8262 return -ENOMEM;
ffb9eb3d 8263
15e47304 8264 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8265 NL80211_CMD_GET_POWER_SAVE);
8266 if (!hdr) {
4c476991 8267 err = -ENOBUFS;
ffb9eb3d
KV		 8268 goto free_msg;
8269 }
8270
8271 if (wdev->ps)
8272 ps_state = NL80211_PS_ENABLED;
8273 else
8274 ps_state = NL80211_PS_DISABLED;
8275
9360ffd1
DM		 8276 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8277 goto nla_put_failure;
ffb9eb3d
KV		 8278
8279 genlmsg_end(msg, hdr);
4c476991 8280 return genlmsg_reply(msg, info);
ffb9eb3d 8281
4c476991 8282 nla_put_failure:
ffb9eb3d 8283 err = -ENOBUFS;
4c476991 8284 free_msg:
ffb9eb3d 8285 nlmsg_free(msg);
ffb9eb3d
KV		 8286 return err;
8287}
8288
94e860f1
JB		 8289static const struct nla_policy
8290nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8291 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8292 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8293 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8294 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8295 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8296 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8297};
8298
84f10708 8299static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8300 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8301{
8302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8303 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8304 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8305
d9d8b019 8306 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8307 return -EINVAL;
8308
84f10708
TP		 8309 if (!rdev->ops->set_cqm_txe_config)
8310 return -EOPNOTSUPP;
8311
8312 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8313 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8314 return -EOPNOTSUPP;
8315
e35e4d28 8316 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8317}
8318
d6dc1a38
JO		 8319static int nl80211_set_cqm_rssi(struct genl_info *info,
8320 s32 threshold, u32 hysteresis)
8321{
4c476991 8322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8323 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8324 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8325
8326 if (threshold > 0)
8327 return -EINVAL;
8328
1da5fcc8
JB		 8329 /* disabling - hysteresis should also be zero then */
8330 if (threshold == 0)
8331 hysteresis = 0;
d6dc1a38 8332
4c476991
JB		 8333 if (!rdev->ops->set_cqm_rssi_config)
8334 return -EOPNOTSUPP;
d6dc1a38 8335
074ac8df 8336 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8337 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8338 return -EOPNOTSUPP;
d6dc1a38 8339
e35e4d28 8340 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8341}
8342
8343static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8344{
8345 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8346 struct nlattr *cqm;
8347 int err;
8348
8349 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8350 if (!cqm)
8351 return -EINVAL;
d6dc1a38
JO		 8352
8353 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8354 nl80211_attr_cqm_policy);
8355 if (err)
1da5fcc8 8356 return err;
d6dc1a38
JO		 8357
8358 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8359 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8360 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8361 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8362
1da5fcc8
JB		 8363 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8364 }
8365
8366 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8367 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8368 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8369 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8370 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8371 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8372
8373 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8374 }
8375
8376 return -EINVAL;
d6dc1a38
JO		 8377}
8378
6e0bd6c3
RL		 8379static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8380{
8381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8382 struct net_device *dev = info->user_ptr[1];
8383 struct ocb_setup setup = {};
8384 int err;
8385
8386 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8387 if (err)
8388 return err;
8389
8390 return cfg80211_join_ocb(rdev, dev, &setup);
8391}
8392
8393static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8394{
8395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8396 struct net_device *dev = info->user_ptr[1];
8397
8398 return cfg80211_leave_ocb(rdev, dev);
8399}
8400
29cbe68c
JB		 8401static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8402{
8403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8404 struct net_device *dev = info->user_ptr[1];
8405 struct mesh_config cfg;
c80d545d 8406 struct mesh_setup setup;
29cbe68c
JB		 8407 int err;
8408
8409 /* start with default */
8410 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8411 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8412
24bdd9f4 8413 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8414 /* and parse parameters if given */
24bdd9f4 8415 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8416 if (err)
8417 return err;
8418 }
8419
8420 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8421 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8422 return -EINVAL;
8423
c80d545d
JC		 8424 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8425 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8426
4bb62344
CYY		 8427 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8428 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8429 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8430 return -EINVAL;
8431
9bdbf04d
MP		 8432 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8433 setup.beacon_interval =
8434 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8435 if (setup.beacon_interval < 10 ||
8436 setup.beacon_interval > 10000)
8437 return -EINVAL;
8438 }
8439
8440 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8441 setup.dtim_period =
8442 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8443 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8444 return -EINVAL;
8445 }
8446
c80d545d
JC		 8447 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8448 /* parse additional setup parameters if given */
8449 err = nl80211_parse_mesh_setup(info, &setup);
8450 if (err)
8451 return err;
8452 }
8453
d37bb18a
TP		 8454 if (setup.user_mpm)
8455 cfg.auto_open_plinks = false;
8456
cc1d2806 8457 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8458 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8459 if (err)
8460 return err;
cc1d2806
JB		 8461 } else {
8462 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8463 setup.chandef.chan = NULL;
cc1d2806
JB		 8464 }
8465
ffb3cf30
AN		 8466 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8467 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8468 int n_rates =
8469 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8470 struct ieee80211_supported_band *sband;
8471
8472 if (!setup.chandef.chan)
8473 return -EINVAL;
8474
8475 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8476
8477 err = ieee80211_get_ratemask(sband, rates, n_rates,
8478 &setup.basic_rates);
8479 if (err)
8480 return err;
8481 }
8482
c80d545d 8483 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8484}
8485
8486static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8487{
8488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8489 struct net_device *dev = info->user_ptr[1];
8490
8491 return cfg80211_leave_mesh(rdev, dev);
8492}
8493
dfb89c56 8494#ifdef CONFIG_PM
bb92d199
AK		 8495static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8496 struct cfg80211_registered_device *rdev)
8497{
6abb9cb9 8498 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8499 struct nlattr *nl_pats, *nl_pat;
8500 int i, pat_len;
8501
6abb9cb9 8502 if (!wowlan->n_patterns)
bb92d199
AK		 8503 return 0;
8504
8505 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8506 if (!nl_pats)
8507 return -ENOBUFS;
8508
6abb9cb9 8509 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8510 nl_pat = nla_nest_start(msg, i + 1);
8511 if (!nl_pat)
8512 return -ENOBUFS;
6abb9cb9 8513 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8514 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8515 wowlan->patterns[i].mask) ||
50ac6607
AK		 8516 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8517 wowlan->patterns[i].pattern) ||
8518 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8519 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8520 return -ENOBUFS;
8521 nla_nest_end(msg, nl_pat);
8522 }
8523 nla_nest_end(msg, nl_pats);
8524
8525 return 0;
8526}
8527
2a0e047e
JB		 8528static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8529 struct cfg80211_wowlan_tcp *tcp)
8530{
8531 struct nlattr *nl_tcp;
8532
8533 if (!tcp)
8534 return 0;
8535
8536 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8537 if (!nl_tcp)
8538 return -ENOBUFS;
8539
8540 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8541 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8542 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8543 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8544 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8545 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8546 tcp->payload_len, tcp->payload) ||
8547 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8548 tcp->data_interval) ||
8549 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8550 tcp->wake_len, tcp->wake_data) ||
8551 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8552 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8553 return -ENOBUFS;
8554
8555 if (tcp->payload_seq.len &&
8556 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8557 sizeof(tcp->payload_seq), &tcp->payload_seq))
8558 return -ENOBUFS;
8559
8560 if (tcp->payload_tok.len &&
8561 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8562 sizeof(tcp->payload_tok) + tcp->tokens_size,
8563 &tcp->payload_tok))
8564 return -ENOBUFS;
8565
e248ad30
JB		 8566 nla_nest_end(msg, nl_tcp);
8567
2a0e047e
JB		 8568 return 0;
8569}
8570
ff1b6e69
JB		 8571static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8572{
8573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8574 struct sk_buff *msg;
8575 void *hdr;
2a0e047e 8576 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8577
964dc9e2 8578 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8579 return -EOPNOTSUPP;
8580
6abb9cb9 8581 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8582 /* adjust size to have room for all the data */
6abb9cb9
JB		 8583 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8584 rdev->wiphy.wowlan_config->tcp->payload_len +
8585 rdev->wiphy.wowlan_config->tcp->wake_len +
8586 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8587 }
8588
8589 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8590 if (!msg)
8591 return -ENOMEM;
8592
15e47304 8593 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8594 NL80211_CMD_GET_WOWLAN);
8595 if (!hdr)
8596 goto nla_put_failure;
8597
6abb9cb9 8598 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8599 struct nlattr *nl_wowlan;
8600
8601 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8602 if (!nl_wowlan)
8603 goto nla_put_failure;
8604
6abb9cb9 8605 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8606 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8607 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8608 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8609 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8610 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8611 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8612 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8613 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8614 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8615 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8616 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8617 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8618 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8619 goto nla_put_failure;
2a0e047e 8620
bb92d199
AK		 8621 if (nl80211_send_wowlan_patterns(msg, rdev))
8622 goto nla_put_failure;
2a0e047e 8623
6abb9cb9
JB		 8624 if (nl80211_send_wowlan_tcp(msg,
8625 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8626 goto nla_put_failure;
8627
ff1b6e69
JB		 8628 nla_nest_end(msg, nl_wowlan);
8629 }
8630
8631 genlmsg_end(msg, hdr);
8632 return genlmsg_reply(msg, info);
8633
8634nla_put_failure:
8635 nlmsg_free(msg);
8636 return -ENOBUFS;
8637}
8638
2a0e047e
JB		 8639static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8640 struct nlattr *attr,
8641 struct cfg80211_wowlan *trig)
8642{
8643 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8644 struct cfg80211_wowlan_tcp *cfg;
8645 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8646 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8647 u32 size;
8648 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8649 int err, port;
8650
964dc9e2 8651 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8652 return -EINVAL;
8653
8654 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8655 nla_data(attr), nla_len(attr),
8656 nl80211_wowlan_tcp_policy);
8657 if (err)
8658 return err;
8659
8660 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8661 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8662 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8663 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8664 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8665 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8666 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8667 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8668 return -EINVAL;
8669
8670 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8671 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8672 return -EINVAL;
8673
8674 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8675 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8676 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8677 return -EINVAL;
8678
8679 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8680 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8681 return -EINVAL;
8682
8683 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8684 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8685 return -EINVAL;
8686
8687 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8688 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8689
8690 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8691 tokens_size = tokln - sizeof(*tok);
8692
8693 if (!tok->len || tokens_size % tok->len)
8694 return -EINVAL;
964dc9e2 8695 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8696 return -EINVAL;
964dc9e2 8697 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8698 return -EINVAL;
964dc9e2 8699 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8700 return -EINVAL;
964dc9e2 8701 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8702 return -EINVAL;
8703 if (tok->offset + tok->len > data_size)
8704 return -EINVAL;
8705 }
8706
8707 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8708 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8709 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8710 return -EINVAL;
8711 if (seq->len == 0 || seq->len > 4)
8712 return -EINVAL;
8713 if (seq->len + seq->offset > data_size)
8714 return -EINVAL;
8715 }
8716
8717 size = sizeof(*cfg);
8718 size += data_size;
8719 size += wake_size + wake_mask_size;
8720 size += tokens_size;
8721
8722 cfg = kzalloc(size, GFP_KERNEL);
8723 if (!cfg)
8724 return -ENOMEM;
8725 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8726 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8727 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8728 ETH_ALEN);
8729 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8730 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8731 else
8732 port = 0;
8733#ifdef CONFIG_INET
8734 /* allocate a socket and port for it and use it */
8735 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8736 IPPROTO_TCP, &cfg->sock, 1);
8737 if (err) {
8738 kfree(cfg);
8739 return err;
8740 }
8741 if (inet_csk_get_port(cfg->sock->sk, port)) {
8742 sock_release(cfg->sock);
8743 kfree(cfg);
8744 return -EADDRINUSE;
8745 }
8746 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8747#else
8748 if (!port) {
8749 kfree(cfg);
8750 return -EINVAL;
8751 }
8752 cfg->src_port = port;
8753#endif
8754
8755 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8756 cfg->payload_len = data_size;
8757 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8758 memcpy((void *)cfg->payload,
8759 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8760 data_size);
8761 if (seq)
8762 cfg->payload_seq = *seq;
8763 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8764 cfg->wake_len = wake_size;
8765 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8766 memcpy((void *)cfg->wake_data,
8767 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8768 wake_size);
8769 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8770 data_size + wake_size;
8771 memcpy((void *)cfg->wake_mask,
8772 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8773 wake_mask_size);
8774 if (tok) {
8775 cfg->tokens_size = tokens_size;
8776 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8777 }
8778
8779 trig->tcp = cfg;
8780
8781 return 0;
8782}
8783
8cd4d456
LC		 8784static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8785 const struct wiphy_wowlan_support *wowlan,
8786 struct nlattr *attr,
8787 struct cfg80211_wowlan *trig)
8788{
8789 struct nlattr **tb;
8790 int err;
8791
8792 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8793 if (!tb)
8794 return -ENOMEM;
8795
8796 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8797 err = -EOPNOTSUPP;
8798 goto out;
8799 }
8800
8801 err = nla_parse(tb, NL80211_ATTR_MAX,
8802 nla_data(attr), nla_len(attr),
8803 nl80211_policy);
8804 if (err)
8805 goto out;
8806
ad2b26ab 8807 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 8808 err = PTR_ERR_OR_ZERO(trig->nd_config);
8809 if (err)
8810 trig->nd_config = NULL;
8811
8812out:
8813 kfree(tb);
8814 return err;
8815}
8816
ff1b6e69
JB		 8817static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8818{
8819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8820 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8821 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8822 struct cfg80211_wowlan *ntrig;
964dc9e2 8823 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8824 int err, i;
6abb9cb9 8825 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8826
964dc9e2 8827 if (!wowlan)
ff1b6e69
JB		 8828 return -EOPNOTSUPP;
8829
ae33bd81
JB		 8830 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8831 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8832 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8833 goto set_wakeup;
8834 }
ff1b6e69
JB		 8835
8836 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8837 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8838 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8839 nl80211_wowlan_policy);
8840 if (err)
8841 return err;
8842
8843 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8844 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8845 return -EINVAL;
8846 new_triggers.any = true;
8847 }
8848
8849 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8850 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8851 return -EINVAL;
8852 new_triggers.disconnect = true;
8853 }
8854
8855 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8856 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8857 return -EINVAL;
8858 new_triggers.magic_pkt = true;
8859 }
8860
77dbbb13
JB		 8861 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8862 return -EINVAL;
8863
8864 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8865 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8866 return -EINVAL;
8867 new_triggers.gtk_rekey_failure = true;
8868 }
8869
8870 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8871 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8872 return -EINVAL;
8873 new_triggers.eap_identity_req = true;
8874 }
8875
8876 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8877 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8878 return -EINVAL;
8879 new_triggers.four_way_handshake = true;
8880 }
8881
8882 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8883 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8884 return -EINVAL;
8885 new_triggers.rfkill_release = true;
8886 }
8887
ff1b6e69
JB		 8888 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8889 struct nlattr *pat;
8890 int n_patterns = 0;
bb92d199 8891 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8892 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8893
8894 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8895 rem)
8896 n_patterns++;
8897 if (n_patterns > wowlan->n_patterns)
8898 return -EINVAL;
8899
8900 new_triggers.patterns = kcalloc(n_patterns,
8901 sizeof(new_triggers.patterns[0]),
8902 GFP_KERNEL);
8903 if (!new_triggers.patterns)
8904 return -ENOMEM;
8905
8906 new_triggers.n_patterns = n_patterns;
8907 i = 0;
8908
8909 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8910 rem) {
922bd80f
JB		 8911 u8 *mask_pat;
8912
50ac6607
AK		 8913 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8914 nla_len(pat), NULL);
ff1b6e69 8915 err = -EINVAL;
50ac6607
AK		 8916 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8917 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8918 goto error;
50ac6607 8919 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8920 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8921 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8922 goto error;
8923 if (pat_len > wowlan->pattern_max_len ||
8924 pat_len < wowlan->pattern_min_len)
8925 goto error;
8926
50ac6607 8927 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8928 pkt_offset = 0;
8929 else
8930 pkt_offset = nla_get_u32(
50ac6607 8931 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8932 if (pkt_offset > wowlan->max_pkt_offset)
8933 goto error;
8934 new_triggers.patterns[i].pkt_offset = pkt_offset;
8935
922bd80f
JB		 8936 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8937 if (!mask_pat) {
ff1b6e69
JB		 8938 err = -ENOMEM;
8939 goto error;
8940 }
922bd80f
JB		 8941 new_triggers.patterns[i].mask = mask_pat;
8942 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8943 mask_len);
922bd80f
JB		 8944 mask_pat += mask_len;
8945 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8946 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8947 memcpy(mask_pat,
50ac6607 8948 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8949 pat_len);
8950 i++;
8951 }
8952 }
8953
2a0e047e
JB		 8954 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8955 err = nl80211_parse_wowlan_tcp(
8956 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8957 &new_triggers);
8958 if (err)
8959 goto error;
8960 }
8961
8cd4d456
LC		 8962 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
8963 err = nl80211_parse_wowlan_nd(
8964 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
8965 &new_triggers);
8966 if (err)
8967 goto error;
8968 }
8969
ae33bd81
JB		 8970 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8971 if (!ntrig) {
8972 err = -ENOMEM;
8973 goto error;
ff1b6e69 8974 }
ae33bd81 8975 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8976 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8977
ae33bd81 8978 set_wakeup:
6abb9cb9
JB		 8979 if (rdev->ops->set_wakeup &&
8980 prev_enabled != !!rdev->wiphy.wowlan_config)
8981 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8982
ff1b6e69
JB		 8983 return 0;
8984 error:
8985 for (i = 0; i < new_triggers.n_patterns; i++)
8986 kfree(new_triggers.patterns[i].mask);
8987 kfree(new_triggers.patterns);
2a0e047e
JB		 8988 if (new_triggers.tcp && new_triggers.tcp->sock)
8989 sock_release(new_triggers.tcp->sock);
8990 kfree(new_triggers.tcp);
ff1b6e69
JB		 8991 return err;
8992}
dfb89c56 8993#endif
ff1b6e69 8994
be29b99a
AK		 8995static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8996 struct cfg80211_registered_device *rdev)
8997{
8998 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8999 int i, j, pat_len;
9000 struct cfg80211_coalesce_rules *rule;
9001
9002 if (!rdev->coalesce->n_rules)
9003 return 0;
9004
9005 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9006 if (!nl_rules)
9007 return -ENOBUFS;
9008
9009 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9010 nl_rule = nla_nest_start(msg, i + 1);
9011 if (!nl_rule)
9012 return -ENOBUFS;
9013
9014 rule = &rdev->coalesce->rules[i];
9015 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9016 rule->delay))
9017 return -ENOBUFS;
9018
9019 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9020 rule->condition))
9021 return -ENOBUFS;
9022
9023 nl_pats = nla_nest_start(msg,
9024 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9025 if (!nl_pats)
9026 return -ENOBUFS;
9027
9028 for (j = 0; j < rule->n_patterns; j++) {
9029 nl_pat = nla_nest_start(msg, j + 1);
9030 if (!nl_pat)
9031 return -ENOBUFS;
9032 pat_len = rule->patterns[j].pattern_len;
9033 if (nla_put(msg, NL80211_PKTPAT_MASK,
9034 DIV_ROUND_UP(pat_len, 8),
9035 rule->patterns[j].mask) ||
9036 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9037 rule->patterns[j].pattern) ||
9038 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9039 rule->patterns[j].pkt_offset))
9040 return -ENOBUFS;
9041 nla_nest_end(msg, nl_pat);
9042 }
9043 nla_nest_end(msg, nl_pats);
9044 nla_nest_end(msg, nl_rule);
9045 }
9046 nla_nest_end(msg, nl_rules);
9047
9048 return 0;
9049}
9050
9051static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9052{
9053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9054 struct sk_buff *msg;
9055 void *hdr;
9056
9057 if (!rdev->wiphy.coalesce)
9058 return -EOPNOTSUPP;
9059
9060 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9061 if (!msg)
9062 return -ENOMEM;
9063
9064 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9065 NL80211_CMD_GET_COALESCE);
9066 if (!hdr)
9067 goto nla_put_failure;
9068
9069 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9070 goto nla_put_failure;
9071
9072 genlmsg_end(msg, hdr);
9073 return genlmsg_reply(msg, info);
9074
9075nla_put_failure:
9076 nlmsg_free(msg);
9077 return -ENOBUFS;
9078}
9079
9080void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9081{
9082 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9083 int i, j;
9084 struct cfg80211_coalesce_rules *rule;
9085
9086 if (!coalesce)
9087 return;
9088
9089 for (i = 0; i < coalesce->n_rules; i++) {
9090 rule = &coalesce->rules[i];
9091 for (j = 0; j < rule->n_patterns; j++)
9092 kfree(rule->patterns[j].mask);
9093 kfree(rule->patterns);
9094 }
9095 kfree(coalesce->rules);
9096 kfree(coalesce);
9097 rdev->coalesce = NULL;
9098}
9099
9100static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9101 struct nlattr *rule,
9102 struct cfg80211_coalesce_rules *new_rule)
9103{
9104 int err, i;
9105 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9106 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9107 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9108 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9109
9110 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9111 nla_len(rule), nl80211_coalesce_policy);
9112 if (err)
9113 return err;
9114
9115 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9116 new_rule->delay =
9117 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9118 if (new_rule->delay > coalesce->max_delay)
9119 return -EINVAL;
9120
9121 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9122 new_rule->condition =
9123 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9124 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9125 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9126 return -EINVAL;
9127
9128 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9129 return -EINVAL;
9130
9131 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9132 rem)
9133 n_patterns++;
9134 if (n_patterns > coalesce->n_patterns)
9135 return -EINVAL;
9136
9137 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9138 GFP_KERNEL);
9139 if (!new_rule->patterns)
9140 return -ENOMEM;
9141
9142 new_rule->n_patterns = n_patterns;
9143 i = 0;
9144
9145 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9146 rem) {
922bd80f
JB		 9147 u8 *mask_pat;
9148
be29b99a
AK		 9149 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9150 nla_len(pat), NULL);
9151 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9152 !pat_tb[NL80211_PKTPAT_PATTERN])
9153 return -EINVAL;
9154 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9155 mask_len = DIV_ROUND_UP(pat_len, 8);
9156 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9157 return -EINVAL;
9158 if (pat_len > coalesce->pattern_max_len ||
9159 pat_len < coalesce->pattern_min_len)
9160 return -EINVAL;
9161
9162 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9163 pkt_offset = 0;
9164 else
9165 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9166 if (pkt_offset > coalesce->max_pkt_offset)
9167 return -EINVAL;
9168 new_rule->patterns[i].pkt_offset = pkt_offset;
9169
922bd80f
JB		 9170 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9171 if (!mask_pat)
be29b99a 9172 return -ENOMEM;
922bd80f
JB		 9173
9174 new_rule->patterns[i].mask = mask_pat;
9175 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9176 mask_len);
9177
9178 mask_pat += mask_len;
9179 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9180 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9181 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9182 pat_len);
be29b99a
AK		 9183 i++;
9184 }
9185
9186 return 0;
9187}
9188
9189static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9190{
9191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9192 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9193 struct cfg80211_coalesce new_coalesce = {};
9194 struct cfg80211_coalesce *n_coalesce;
9195 int err, rem_rule, n_rules = 0, i, j;
9196 struct nlattr *rule;
9197 struct cfg80211_coalesce_rules *tmp_rule;
9198
9199 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9200 return -EOPNOTSUPP;
9201
9202 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9203 cfg80211_rdev_free_coalesce(rdev);
9204 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9205 return 0;
9206 }
9207
9208 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9209 rem_rule)
9210 n_rules++;
9211 if (n_rules > coalesce->n_rules)
9212 return -EINVAL;
9213
9214 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9215 GFP_KERNEL);
9216 if (!new_coalesce.rules)
9217 return -ENOMEM;
9218
9219 new_coalesce.n_rules = n_rules;
9220 i = 0;
9221
9222 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9223 rem_rule) {
9224 err = nl80211_parse_coalesce_rule(rdev, rule,
9225 &new_coalesce.rules[i]);
9226 if (err)
9227 goto error;
9228
9229 i++;
9230 }
9231
9232 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9233 if (err)
9234 goto error;
9235
9236 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9237 if (!n_coalesce) {
9238 err = -ENOMEM;
9239 goto error;
9240 }
9241 cfg80211_rdev_free_coalesce(rdev);
9242 rdev->coalesce = n_coalesce;
9243
9244 return 0;
9245error:
9246 for (i = 0; i < new_coalesce.n_rules; i++) {
9247 tmp_rule = &new_coalesce.rules[i];
9248 for (j = 0; j < tmp_rule->n_patterns; j++)
9249 kfree(tmp_rule->patterns[j].mask);
9250 kfree(tmp_rule->patterns);
9251 }
9252 kfree(new_coalesce.rules);
9253
9254 return err;
9255}
9256
e5497d76
JB		 9257static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9258{
9259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9260 struct net_device *dev = info->user_ptr[1];
9261 struct wireless_dev *wdev = dev->ieee80211_ptr;
9262 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9263 struct cfg80211_gtk_rekey_data rekey_data;
9264 int err;
9265
9266 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9267 return -EINVAL;
9268
9269 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9270 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9271 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9272 nl80211_rekey_policy);
9273 if (err)
9274 return err;
9275
9276 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9277 return -ERANGE;
9278 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9279 return -ERANGE;
9280 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9281 return -ERANGE;
9282
78f686ca
JB		 9283 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9284 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9285 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9286
9287 wdev_lock(wdev);
9288 if (!wdev->current_bss) {
9289 err = -ENOTCONN;
9290 goto out;
9291 }
9292
9293 if (!rdev->ops->set_rekey_data) {
9294 err = -EOPNOTSUPP;
9295 goto out;
9296 }
9297
e35e4d28 9298 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9299 out:
9300 wdev_unlock(wdev);
9301 return err;
9302}
9303
28946da7
JB		 9304static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9305 struct genl_info *info)
9306{
9307 struct net_device *dev = info->user_ptr[1];
9308 struct wireless_dev *wdev = dev->ieee80211_ptr;
9309
9310 if (wdev->iftype != NL80211_IFTYPE_AP &&
9311 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9312 return -EINVAL;
9313
15e47304 9314 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9315 return -EBUSY;
9316
15e47304 9317 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9318 return 0;
9319}
9320
7f6cf311
JB		 9321static int nl80211_probe_client(struct sk_buff *skb,
9322 struct genl_info *info)
9323{
9324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9325 struct net_device *dev = info->user_ptr[1];
9326 struct wireless_dev *wdev = dev->ieee80211_ptr;
9327 struct sk_buff *msg;
9328 void *hdr;
9329 const u8 *addr;
9330 u64 cookie;
9331 int err;
9332
9333 if (wdev->iftype != NL80211_IFTYPE_AP &&
9334 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9335 return -EOPNOTSUPP;
9336
9337 if (!info->attrs[NL80211_ATTR_MAC])
9338 return -EINVAL;
9339
9340 if (!rdev->ops->probe_client)
9341 return -EOPNOTSUPP;
9342
9343 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9344 if (!msg)
9345 return -ENOMEM;
9346
15e47304 9347 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9348 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9349 if (!hdr) {
9350 err = -ENOBUFS;
7f6cf311
JB		 9351 goto free_msg;
9352 }
9353
9354 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9355
e35e4d28 9356 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9357 if (err)
9358 goto free_msg;
9359
9360ffd1
DM		 9360 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9361 goto nla_put_failure;
7f6cf311
JB		 9362
9363 genlmsg_end(msg, hdr);
9364
9365 return genlmsg_reply(msg, info);
9366
9367 nla_put_failure:
9368 err = -ENOBUFS;
9369 free_msg:
9370 nlmsg_free(msg);
9371 return err;
9372}
9373
5e760230
JB		 9374static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9375{
9376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9377 struct cfg80211_beacon_registration *reg, *nreg;
9378 int rv;
5e760230
JB		 9379
9380 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9381 return -EOPNOTSUPP;
9382
37c73b5f
BG		 9383 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9384 if (!nreg)
9385 return -ENOMEM;
9386
9387 /* First, check if already registered. */
9388 spin_lock_bh(&rdev->beacon_registrations_lock);
9389 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9390 if (reg->nlportid == info->snd_portid) {
9391 rv = -EALREADY;
9392 goto out_err;
9393 }
9394 }
9395 /* Add it to the list */
9396 nreg->nlportid = info->snd_portid;
9397 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9398
37c73b5f 9399 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9400
9401 return 0;
37c73b5f
BG		 9402out_err:
9403 spin_unlock_bh(&rdev->beacon_registrations_lock);
9404 kfree(nreg);
9405 return rv;
5e760230
JB		 9406}
9407
98104fde
JB		 9408static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9409{
9410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9411 struct wireless_dev *wdev = info->user_ptr[1];
9412 int err;
9413
9414 if (!rdev->ops->start_p2p_device)
9415 return -EOPNOTSUPP;
9416
9417 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9418 return -EOPNOTSUPP;
9419
9420 if (wdev->p2p_started)
9421 return 0;
9422
b6a55015
LC		 9423 if (rfkill_blocked(rdev->rfkill))
9424 return -ERFKILL;
98104fde 9425
eeb126e9 9426 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9427 if (err)
9428 return err;
9429
9430 wdev->p2p_started = true;
98104fde 9431 rdev->opencount++;
98104fde
JB		 9432
9433 return 0;
9434}
9435
9436static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9437{
9438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9439 struct wireless_dev *wdev = info->user_ptr[1];
9440
9441 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9442 return -EOPNOTSUPP;
9443
9444 if (!rdev->ops->stop_p2p_device)
9445 return -EOPNOTSUPP;
9446
f9f47529 9447 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9448
9449 return 0;
9450}
9451
3713b4e3
JB		 9452static int nl80211_get_protocol_features(struct sk_buff *skb,
9453 struct genl_info *info)
9454{
9455 void *hdr;
9456 struct sk_buff *msg;
9457
9458 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9459 if (!msg)
9460 return -ENOMEM;
9461
9462 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9463 NL80211_CMD_GET_PROTOCOL_FEATURES);
9464 if (!hdr)
9465 goto nla_put_failure;
9466
9467 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9468 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9469 goto nla_put_failure;
9470
9471 genlmsg_end(msg, hdr);
9472 return genlmsg_reply(msg, info);
9473
9474 nla_put_failure:
9475 kfree_skb(msg);
9476 return -ENOBUFS;
9477}
9478
355199e0
JM		 9479static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9480{
9481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9482 struct cfg80211_update_ft_ies_params ft_params;
9483 struct net_device *dev = info->user_ptr[1];
9484
9485 if (!rdev->ops->update_ft_ies)
9486 return -EOPNOTSUPP;
9487
9488 if (!info->attrs[NL80211_ATTR_MDID] ||
9489 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9490 return -EINVAL;
9491
9492 memset(&ft_params, 0, sizeof(ft_params));
9493 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9494 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9495 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9496
9497 return rdev_update_ft_ies(rdev, dev, &ft_params);
9498}
9499
5de17984
AS		 9500static int nl80211_crit_protocol_start(struct sk_buff *skb,
9501 struct genl_info *info)
9502{
9503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9504 struct wireless_dev *wdev = info->user_ptr[1];
9505 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9506 u16 duration;
9507 int ret;
9508
9509 if (!rdev->ops->crit_proto_start)
9510 return -EOPNOTSUPP;
9511
9512 if (WARN_ON(!rdev->ops->crit_proto_stop))
9513 return -EINVAL;
9514
9515 if (rdev->crit_proto_nlportid)
9516 return -EBUSY;
9517
9518 /* determine protocol if provided */
9519 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9520 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9521
9522 if (proto >= NUM_NL80211_CRIT_PROTO)
9523 return -EINVAL;
9524
9525 /* timeout must be provided */
9526 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9527 return -EINVAL;
9528
9529 duration =
9530 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9531
9532 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9533 return -ERANGE;
9534
9535 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9536 if (!ret)
9537 rdev->crit_proto_nlportid = info->snd_portid;
9538
9539 return ret;
9540}
9541
9542static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9543 struct genl_info *info)
9544{
9545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9546 struct wireless_dev *wdev = info->user_ptr[1];
9547
9548 if (!rdev->ops->crit_proto_stop)
9549 return -EOPNOTSUPP;
9550
9551 if (rdev->crit_proto_nlportid) {
9552 rdev->crit_proto_nlportid = 0;
9553 rdev_crit_proto_stop(rdev, wdev);
9554 }
9555 return 0;
9556}
9557
ad7e718c
JB		 9558static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9559{
9560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9561 struct wireless_dev *wdev =
9562 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9563 int i, err;
9564 u32 vid, subcmd;
9565
9566 if (!rdev->wiphy.vendor_commands)
9567 return -EOPNOTSUPP;
9568
9569 if (IS_ERR(wdev)) {
9570 err = PTR_ERR(wdev);
9571 if (err != -EINVAL)
9572 return err;
9573 wdev = NULL;
9574 } else if (wdev->wiphy != &rdev->wiphy) {
9575 return -EINVAL;
9576 }
9577
9578 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9579 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9580 return -EINVAL;
9581
9582 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9583 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9584 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9585 const struct wiphy_vendor_command *vcmd;
9586 void *data = NULL;
9587 int len = 0;
9588
9589 vcmd = &rdev->wiphy.vendor_commands[i];
9590
9591 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9592 continue;
9593
9594 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9595 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9596 if (!wdev)
9597 return -EINVAL;
9598 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9599 !wdev->netdev)
9600 return -EINVAL;
9601
9602 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9603 if (wdev->netdev &&
9604 !netif_running(wdev->netdev))
9605 return -ENETDOWN;
9606 if (!wdev->netdev && !wdev->p2p_started)
9607 return -ENETDOWN;
9608 }
9609 } else {
9610 wdev = NULL;
9611 }
9612
9613 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9614 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9615 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9616 }
9617
9618 rdev->cur_cmd_info = info;
9619 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9620 data, len);
9621 rdev->cur_cmd_info = NULL;
9622 return err;
9623 }
9624
9625 return -EOPNOTSUPP;
9626}
9627
9628struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9629 enum nl80211_commands cmd,
9630 enum nl80211_attrs attr,
9631 int approxlen)
9632{
f26cbf40 9633 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9634
9635 if (WARN_ON(!rdev->cur_cmd_info))
9636 return NULL;
9637
9638 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9639 rdev->cur_cmd_info->snd_portid,
9640 rdev->cur_cmd_info->snd_seq,
567ffc35 9641 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9642}
9643EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9644
9645int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9646{
9647 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9648 void *hdr = ((void **)skb->cb)[1];
9649 struct nlattr *data = ((void **)skb->cb)[2];
9650
bd8c78e7
JB		 9651 /* clear CB data for netlink core to own from now on */
9652 memset(skb->cb, 0, sizeof(skb->cb));
9653
ad7e718c
JB		 9654 if (WARN_ON(!rdev->cur_cmd_info)) {
9655 kfree_skb(skb);
9656 return -EINVAL;
9657 }
9658
9659 nla_nest_end(skb, data);
9660 genlmsg_end(skb, hdr);
9661 return genlmsg_reply(skb, rdev->cur_cmd_info);
9662}
9663EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9664
9665
fa9ffc74
KP		 9666static int nl80211_set_qos_map(struct sk_buff *skb,
9667 struct genl_info *info)
9668{
9669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9670 struct cfg80211_qos_map *qos_map = NULL;
9671 struct net_device *dev = info->user_ptr[1];
9672 u8 *pos, len, num_des, des_len, des;
9673 int ret;
9674
9675 if (!rdev->ops->set_qos_map)
9676 return -EOPNOTSUPP;
9677
9678 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9679 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9680 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9681
9682 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9683 len > IEEE80211_QOS_MAP_LEN_MAX)
9684 return -EINVAL;
9685
9686 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9687 if (!qos_map)
9688 return -ENOMEM;
9689
9690 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9691 if (num_des) {
9692 des_len = num_des *
9693 sizeof(struct cfg80211_dscp_exception);
9694 memcpy(qos_map->dscp_exception, pos, des_len);
9695 qos_map->num_des = num_des;
9696 for (des = 0; des < num_des; des++) {
9697 if (qos_map->dscp_exception[des].up > 7) {
9698 kfree(qos_map);
9699 return -EINVAL;
9700 }
9701 }
9702 pos += des_len;
9703 }
9704 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9705 }
9706
9707 wdev_lock(dev->ieee80211_ptr);
9708 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9709 if (!ret)
9710 ret = rdev_set_qos_map(rdev, dev, qos_map);
9711 wdev_unlock(dev->ieee80211_ptr);
9712
9713 kfree(qos_map);
9714 return ret;
9715}
9716
960d01ac
JB		 9717static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9718{
9719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9720 struct net_device *dev = info->user_ptr[1];
9721 struct wireless_dev *wdev = dev->ieee80211_ptr;
9722 const u8 *peer;
9723 u8 tsid, up;
9724 u16 admitted_time = 0;
9725 int err;
9726
723e73ac 9727 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9728 return -EOPNOTSUPP;
9729
9730 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9731 !info->attrs[NL80211_ATTR_USER_PRIO])
9732 return -EINVAL;
9733
9734 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9735 if (tsid >= IEEE80211_NUM_TIDS)
9736 return -EINVAL;
9737
9738 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9739 if (up >= IEEE80211_NUM_UPS)
9740 return -EINVAL;
9741
9742 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9743 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9744 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9745 * need more attributes for that (e.g. BA session requirement);
9746 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9747 */
9748 return -EINVAL;
9749 }
9750
9751 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9752
9753 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9754 admitted_time =
9755 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9756 if (!admitted_time)
9757 return -EINVAL;
9758 }
9759
9760 wdev_lock(wdev);
9761 switch (wdev->iftype) {
9762 case NL80211_IFTYPE_STATION:
9763 case NL80211_IFTYPE_P2P_CLIENT:
9764 if (wdev->current_bss)
9765 break;
9766 err = -ENOTCONN;
9767 goto out;
9768 default:
9769 err = -EOPNOTSUPP;
9770 goto out;
9771 }
9772
9773 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9774
9775 out:
9776 wdev_unlock(wdev);
9777 return err;
9778}
9779
9780static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9781{
9782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9783 struct net_device *dev = info->user_ptr[1];
9784 struct wireless_dev *wdev = dev->ieee80211_ptr;
9785 const u8 *peer;
9786 u8 tsid;
9787 int err;
9788
9789 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9790 return -EINVAL;
9791
9792 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9793 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9794
9795 wdev_lock(wdev);
9796 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9797 wdev_unlock(wdev);
9798
9799 return err;
9800}
9801
1057d35e
AN		 9802static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9803 struct genl_info *info)
9804{
9805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9806 struct net_device *dev = info->user_ptr[1];
9807 struct wireless_dev *wdev = dev->ieee80211_ptr;
9808 struct cfg80211_chan_def chandef = {};
9809 const u8 *addr;
9810 u8 oper_class;
9811 int err;
9812
9813 if (!rdev->ops->tdls_channel_switch ||
9814 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9815 return -EOPNOTSUPP;
9816
9817 switch (dev->ieee80211_ptr->iftype) {
9818 case NL80211_IFTYPE_STATION:
9819 case NL80211_IFTYPE_P2P_CLIENT:
9820 break;
9821 default:
9822 return -EOPNOTSUPP;
9823 }
9824
9825 if (!info->attrs[NL80211_ATTR_MAC] ||
9826 !info->attrs[NL80211_ATTR_OPER_CLASS])
9827 return -EINVAL;
9828
9829 err = nl80211_parse_chandef(rdev, info, &chandef);
9830 if (err)
9831 return err;
9832
9833 /*
9834 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9835 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9836 * specification is not defined for them.
9837 */
9838 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9839 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9840 chandef.width != NL80211_CHAN_WIDTH_20)
9841 return -EINVAL;
9842
9843 /* we will be active on the TDLS link */
9844 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
9845 return -EINVAL;
9846
9847 /* don't allow switching to DFS channels */
9848 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
9849 return -EINVAL;
9850
9851 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9852 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
9853
9854 wdev_lock(wdev);
9855 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
9856 wdev_unlock(wdev);
9857
9858 return err;
9859}
9860
9861static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
9862 struct genl_info *info)
9863{
9864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9865 struct net_device *dev = info->user_ptr[1];
9866 struct wireless_dev *wdev = dev->ieee80211_ptr;
9867 const u8 *addr;
9868
9869 if (!rdev->ops->tdls_channel_switch ||
9870 !rdev->ops->tdls_cancel_channel_switch ||
9871 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9872 return -EOPNOTSUPP;
9873
9874 switch (dev->ieee80211_ptr->iftype) {
9875 case NL80211_IFTYPE_STATION:
9876 case NL80211_IFTYPE_P2P_CLIENT:
9877 break;
9878 default:
9879 return -EOPNOTSUPP;
9880 }
9881
9882 if (!info->attrs[NL80211_ATTR_MAC])
9883 return -EINVAL;
9884
9885 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9886
9887 wdev_lock(wdev);
9888 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
9889 wdev_unlock(wdev);
9890
9891 return 0;
9892}
9893
4c476991
JB		 9894#define NL80211_FLAG_NEED_WIPHY 0x01
9895#define NL80211_FLAG_NEED_NETDEV 0x02
9896#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9897#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9898#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9899 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9900#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9901/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9902#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9903 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 9904#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 9905
f84f771d 9906static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9907 struct genl_info *info)
9908{
9909 struct cfg80211_registered_device *rdev;
89a54e48 9910 struct wireless_dev *wdev;
4c476991 9911 struct net_device *dev;
4c476991
JB		 9912 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9913
9914 if (rtnl)
9915 rtnl_lock();
9916
9917 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9918 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9919 if (IS_ERR(rdev)) {
9920 if (rtnl)
9921 rtnl_unlock();
9922 return PTR_ERR(rdev);
9923 }
9924 info->user_ptr[0] = rdev;
1bf614ef
JB		 9925 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9926 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9927 ASSERT_RTNL();
9928
89a54e48
JB		 9929 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9930 info->attrs);
9931 if (IS_ERR(wdev)) {
4c476991
JB		 9932 if (rtnl)
9933 rtnl_unlock();
89a54e48 9934 return PTR_ERR(wdev);
4c476991 9935 }
89a54e48 9936
89a54e48 9937 dev = wdev->netdev;
f26cbf40 9938 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9939
1bf614ef
JB		 9940 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9941 if (!dev) {
1bf614ef
JB		 9942 if (rtnl)
9943 rtnl_unlock();
9944 return -EINVAL;
9945 }
9946
9947 info->user_ptr[1] = dev;
9948 } else {
9949 info->user_ptr[1] = wdev;
41265714 9950 }
1bf614ef
JB		 9951
9952 if (dev) {
9953 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9954 !netif_running(dev)) {
1bf614ef
JB		 9955 if (rtnl)
9956 rtnl_unlock();
9957 return -ENETDOWN;
9958 }
9959
9960 dev_hold(dev);
98104fde
JB		 9961 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9962 if (!wdev->p2p_started) {
98104fde
JB		 9963 if (rtnl)
9964 rtnl_unlock();
9965 return -ENETDOWN;
9966 }
41265714 9967 }
89a54e48 9968
4c476991 9969 info->user_ptr[0] = rdev;
4c476991
JB		 9970 }
9971
9972 return 0;
9973}
9974
f84f771d 9975static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9976 struct genl_info *info)
9977{
1bf614ef
JB		 9978 if (info->user_ptr[1]) {
9979 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9980 struct wireless_dev *wdev = info->user_ptr[1];
9981
9982 if (wdev->netdev)
9983 dev_put(wdev->netdev);
9984 } else {
9985 dev_put(info->user_ptr[1]);
9986 }
9987 }
5393b917 9988
4c476991
JB		 9989 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9990 rtnl_unlock();
5393b917
JB		 9991
9992 /* If needed, clear the netlink message payload from the SKB
9993 * as it might contain key data that shouldn't stick around on
9994 * the heap after the SKB is freed. The netlink message header
9995 * is still needed for further processing, so leave it intact.
9996 */
9997 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
9998 struct nlmsghdr *nlh = nlmsg_hdr(skb);
9999
10000 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10001 }
4c476991
JB		 10002}
10003
4534de83 10004static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10005 {
10006 .cmd = NL80211_CMD_GET_WIPHY,
10007 .doit = nl80211_get_wiphy,
10008 .dumpit = nl80211_dump_wiphy,
86e8cf98 10009 .done = nl80211_dump_wiphy_done,
55682965
JB		 10010 .policy = nl80211_policy,
10011 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10012 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10013 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10014 },
10015 {
10016 .cmd = NL80211_CMD_SET_WIPHY,
10017 .doit = nl80211_set_wiphy,
10018 .policy = nl80211_policy,
10019 .flags = GENL_ADMIN_PERM,
4c476991 10020 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10021 },
10022 {
10023 .cmd = NL80211_CMD_GET_INTERFACE,
10024 .doit = nl80211_get_interface,
10025 .dumpit = nl80211_dump_interface,
10026 .policy = nl80211_policy,
10027 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10028 .internal_flags = NL80211_FLAG_NEED_WDEV |
10029 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10030 },
10031 {
10032 .cmd = NL80211_CMD_SET_INTERFACE,
10033 .doit = nl80211_set_interface,
10034 .policy = nl80211_policy,
10035 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10036 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10037 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10038 },
10039 {
10040 .cmd = NL80211_CMD_NEW_INTERFACE,
10041 .doit = nl80211_new_interface,
10042 .policy = nl80211_policy,
10043 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10044 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10045 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10046 },
10047 {
10048 .cmd = NL80211_CMD_DEL_INTERFACE,
10049 .doit = nl80211_del_interface,
10050 .policy = nl80211_policy,
41ade00f 10051 .flags = GENL_ADMIN_PERM,
84efbb84 10052 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10053 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10054 },
10055 {
10056 .cmd = NL80211_CMD_GET_KEY,
10057 .doit = nl80211_get_key,
10058 .policy = nl80211_policy,
10059 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10060 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10061 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10062 },
10063 {
10064 .cmd = NL80211_CMD_SET_KEY,
10065 .doit = nl80211_set_key,
10066 .policy = nl80211_policy,
10067 .flags = GENL_ADMIN_PERM,
41265714 10068 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10069 NL80211_FLAG_NEED_RTNL |
10070 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10071 },
10072 {
10073 .cmd = NL80211_CMD_NEW_KEY,
10074 .doit = nl80211_new_key,
10075 .policy = nl80211_policy,
10076 .flags = GENL_ADMIN_PERM,
41265714 10077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10078 NL80211_FLAG_NEED_RTNL |
10079 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10080 },
10081 {
10082 .cmd = NL80211_CMD_DEL_KEY,
10083 .doit = nl80211_del_key,
10084 .policy = nl80211_policy,
55682965 10085 .flags = GENL_ADMIN_PERM,
41265714 10086 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10087 NL80211_FLAG_NEED_RTNL,
55682965 10088 },
ed1b6cc7
JB		 10089 {
10090 .cmd = NL80211_CMD_SET_BEACON,
10091 .policy = nl80211_policy,
10092 .flags = GENL_ADMIN_PERM,
8860020e 10093 .doit = nl80211_set_beacon,
2b5f8b0b 10094 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10095 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10096 },
10097 {
8860020e 10098 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10099 .policy = nl80211_policy,
10100 .flags = GENL_ADMIN_PERM,
8860020e 10101 .doit = nl80211_start_ap,
2b5f8b0b 10102 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10103 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10104 },
10105 {
8860020e 10106 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10107 .policy = nl80211_policy,
10108 .flags = GENL_ADMIN_PERM,
8860020e 10109 .doit = nl80211_stop_ap,
2b5f8b0b 10110 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10111 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10112 },
5727ef1b
JB		 10113 {
10114 .cmd = NL80211_CMD_GET_STATION,
10115 .doit = nl80211_get_station,
2ec600d6 10116 .dumpit = nl80211_dump_station,
5727ef1b 10117 .policy = nl80211_policy,
4c476991
JB		 10118 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10119 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10120 },
10121 {
10122 .cmd = NL80211_CMD_SET_STATION,
10123 .doit = nl80211_set_station,
10124 .policy = nl80211_policy,
10125 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10126 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10127 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10128 },
10129 {
10130 .cmd = NL80211_CMD_NEW_STATION,
10131 .doit = nl80211_new_station,
10132 .policy = nl80211_policy,
10133 .flags = GENL_ADMIN_PERM,
41265714 10134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10135 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10136 },
10137 {
10138 .cmd = NL80211_CMD_DEL_STATION,
10139 .doit = nl80211_del_station,
10140 .policy = nl80211_policy,
2ec600d6 10141 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10143 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10144 },
10145 {
10146 .cmd = NL80211_CMD_GET_MPATH,
10147 .doit = nl80211_get_mpath,
10148 .dumpit = nl80211_dump_mpath,
10149 .policy = nl80211_policy,
10150 .flags = GENL_ADMIN_PERM,
41265714 10151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10152 NL80211_FLAG_NEED_RTNL,
2ec600d6 10153 },
66be7d2b
HR		 10154 {
10155 .cmd = NL80211_CMD_GET_MPP,
10156 .doit = nl80211_get_mpp,
10157 .dumpit = nl80211_dump_mpp,
10158 .policy = nl80211_policy,
10159 .flags = GENL_ADMIN_PERM,
10160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10161 NL80211_FLAG_NEED_RTNL,
10162 },
2ec600d6
LCC		 10163 {
10164 .cmd = NL80211_CMD_SET_MPATH,
10165 .doit = nl80211_set_mpath,
10166 .policy = nl80211_policy,
10167 .flags = GENL_ADMIN_PERM,
41265714 10168 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10169 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10170 },
10171 {
10172 .cmd = NL80211_CMD_NEW_MPATH,
10173 .doit = nl80211_new_mpath,
10174 .policy = nl80211_policy,
10175 .flags = GENL_ADMIN_PERM,
41265714 10176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10177 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10178 },
10179 {
10180 .cmd = NL80211_CMD_DEL_MPATH,
10181 .doit = nl80211_del_mpath,
10182 .policy = nl80211_policy,
9f1ba906 10183 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10184 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10185 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10186 },
10187 {
10188 .cmd = NL80211_CMD_SET_BSS,
10189 .doit = nl80211_set_bss,
10190 .policy = nl80211_policy,
b2e1b302 10191 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10192 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10193 NL80211_FLAG_NEED_RTNL,
b2e1b302 10194 },
f130347c
LR		 10195 {
10196 .cmd = NL80211_CMD_GET_REG,
10197 .doit = nl80211_get_reg,
10198 .policy = nl80211_policy,
5fe231e8 10199 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10200 /* can be retrieved by unprivileged users */
10201 },
b2e1b302
LR		 10202 {
10203 .cmd = NL80211_CMD_SET_REG,
10204 .doit = nl80211_set_reg,
10205 .policy = nl80211_policy,
10206 .flags = GENL_ADMIN_PERM,
5fe231e8 10207 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10208 },
10209 {
10210 .cmd = NL80211_CMD_REQ_SET_REG,
10211 .doit = nl80211_req_set_reg,
10212 .policy = nl80211_policy,
93da9cc1 10213 .flags = GENL_ADMIN_PERM,
10214 },
10215 {
24bdd9f4
JC		 10216 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10217 .doit = nl80211_get_mesh_config,
93da9cc1 10218 .policy = nl80211_policy,
10219 /* can be retrieved by unprivileged users */
2b5f8b0b 10220 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10221 NL80211_FLAG_NEED_RTNL,
93da9cc1 10222 },
10223 {
24bdd9f4
JC		 10224 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10225 .doit = nl80211_update_mesh_config,
93da9cc1 10226 .policy = nl80211_policy,
9aed3cc1 10227 .flags = GENL_ADMIN_PERM,
29cbe68c 10228 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10229 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10230 },
2a519311
JB		 10231 {
10232 .cmd = NL80211_CMD_TRIGGER_SCAN,
10233 .doit = nl80211_trigger_scan,
10234 .policy = nl80211_policy,
10235 .flags = GENL_ADMIN_PERM,
fd014284 10236 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10237 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10238 },
10239 {
10240 .cmd = NL80211_CMD_GET_SCAN,
10241 .policy = nl80211_policy,
10242 .dumpit = nl80211_dump_scan,
10243 },
807f8a8c
LC		 10244 {
10245 .cmd = NL80211_CMD_START_SCHED_SCAN,
10246 .doit = nl80211_start_sched_scan,
10247 .policy = nl80211_policy,
10248 .flags = GENL_ADMIN_PERM,
10249 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10250 NL80211_FLAG_NEED_RTNL,
10251 },
10252 {
10253 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10254 .doit = nl80211_stop_sched_scan,
10255 .policy = nl80211_policy,
10256 .flags = GENL_ADMIN_PERM,
10257 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10258 NL80211_FLAG_NEED_RTNL,
10259 },
636a5d36
JM		 10260 {
10261 .cmd = NL80211_CMD_AUTHENTICATE,
10262 .doit = nl80211_authenticate,
10263 .policy = nl80211_policy,
10264 .flags = GENL_ADMIN_PERM,
41265714 10265 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10266 NL80211_FLAG_NEED_RTNL |
10267 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10268 },
10269 {
10270 .cmd = NL80211_CMD_ASSOCIATE,
10271 .doit = nl80211_associate,
10272 .policy = nl80211_policy,
10273 .flags = GENL_ADMIN_PERM,
41265714 10274 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10275 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10276 },
10277 {
10278 .cmd = NL80211_CMD_DEAUTHENTICATE,
10279 .doit = nl80211_deauthenticate,
10280 .policy = nl80211_policy,
10281 .flags = GENL_ADMIN_PERM,
41265714 10282 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10283 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10284 },
10285 {
10286 .cmd = NL80211_CMD_DISASSOCIATE,
10287 .doit = nl80211_disassociate,
10288 .policy = nl80211_policy,
10289 .flags = GENL_ADMIN_PERM,
41265714 10290 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10291 NL80211_FLAG_NEED_RTNL,
636a5d36 10292 },
04a773ad
JB		 10293 {
10294 .cmd = NL80211_CMD_JOIN_IBSS,
10295 .doit = nl80211_join_ibss,
10296 .policy = nl80211_policy,
10297 .flags = GENL_ADMIN_PERM,
41265714 10298 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10299 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10300 },
10301 {
10302 .cmd = NL80211_CMD_LEAVE_IBSS,
10303 .doit = nl80211_leave_ibss,
10304 .policy = nl80211_policy,
10305 .flags = GENL_ADMIN_PERM,
41265714 10306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10307 NL80211_FLAG_NEED_RTNL,
04a773ad 10308 },
aff89a9b
JB		 10309#ifdef CONFIG_NL80211_TESTMODE
10310 {
10311 .cmd = NL80211_CMD_TESTMODE,
10312 .doit = nl80211_testmode_do,
71063f0e 10313 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10314 .policy = nl80211_policy,
10315 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10316 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10317 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10318 },
10319#endif
b23aa676
SO		 10320 {
10321 .cmd = NL80211_CMD_CONNECT,
10322 .doit = nl80211_connect,
10323 .policy = nl80211_policy,
10324 .flags = GENL_ADMIN_PERM,
41265714 10325 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10326 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10327 },
10328 {
10329 .cmd = NL80211_CMD_DISCONNECT,
10330 .doit = nl80211_disconnect,
10331 .policy = nl80211_policy,
10332 .flags = GENL_ADMIN_PERM,
41265714 10333 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10334 NL80211_FLAG_NEED_RTNL,
b23aa676 10335 },
463d0183
JB		 10336 {
10337 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10338 .doit = nl80211_wiphy_netns,
10339 .policy = nl80211_policy,
10340 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10341 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10342 NL80211_FLAG_NEED_RTNL,
463d0183 10343 },
61fa713c
HS		 10344 {
10345 .cmd = NL80211_CMD_GET_SURVEY,
10346 .policy = nl80211_policy,
10347 .dumpit = nl80211_dump_survey,
10348 },
67fbb16b
SO		 10349 {
10350 .cmd = NL80211_CMD_SET_PMKSA,
10351 .doit = nl80211_setdel_pmksa,
10352 .policy = nl80211_policy,
10353 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10354 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10355 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10356 },
10357 {
10358 .cmd = NL80211_CMD_DEL_PMKSA,
10359 .doit = nl80211_setdel_pmksa,
10360 .policy = nl80211_policy,
10361 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10362 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10363 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10364 },
10365 {
10366 .cmd = NL80211_CMD_FLUSH_PMKSA,
10367 .doit = nl80211_flush_pmksa,
10368 .policy = nl80211_policy,
10369 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10371 NL80211_FLAG_NEED_RTNL,
67fbb16b 10372 },
9588bbd5
JM		 10373 {
10374 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10375 .doit = nl80211_remain_on_channel,
10376 .policy = nl80211_policy,
10377 .flags = GENL_ADMIN_PERM,
71bbc994 10378 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10379 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10380 },
10381 {
10382 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10383 .doit = nl80211_cancel_remain_on_channel,
10384 .policy = nl80211_policy,
10385 .flags = GENL_ADMIN_PERM,
71bbc994 10386 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10387 NL80211_FLAG_NEED_RTNL,
9588bbd5 10388 },
13ae75b1
JM		 10389 {
10390 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10391 .doit = nl80211_set_tx_bitrate_mask,
10392 .policy = nl80211_policy,
10393 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10394 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10395 NL80211_FLAG_NEED_RTNL,
13ae75b1 10396 },
026331c4 10397 {
2e161f78
JB		 10398 .cmd = NL80211_CMD_REGISTER_FRAME,
10399 .doit = nl80211_register_mgmt,
026331c4
JM		 10400 .policy = nl80211_policy,
10401 .flags = GENL_ADMIN_PERM,
71bbc994 10402 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10403 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10404 },
10405 {
2e161f78
JB		 10406 .cmd = NL80211_CMD_FRAME,
10407 .doit = nl80211_tx_mgmt,
026331c4 10408 .policy = nl80211_policy,
f7ca38df 10409 .flags = GENL_ADMIN_PERM,
71bbc994 10410 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10411 NL80211_FLAG_NEED_RTNL,
10412 },
10413 {
10414 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10415 .doit = nl80211_tx_mgmt_cancel_wait,
10416 .policy = nl80211_policy,
026331c4 10417 .flags = GENL_ADMIN_PERM,
71bbc994 10418 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10419 NL80211_FLAG_NEED_RTNL,
026331c4 10420 },
ffb9eb3d
KV		 10421 {
10422 .cmd = NL80211_CMD_SET_POWER_SAVE,
10423 .doit = nl80211_set_power_save,
10424 .policy = nl80211_policy,
10425 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10426 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10427 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10428 },
10429 {
10430 .cmd = NL80211_CMD_GET_POWER_SAVE,
10431 .doit = nl80211_get_power_save,
10432 .policy = nl80211_policy,
10433 /* can be retrieved by unprivileged users */
4c476991
JB		 10434 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10435 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10436 },
d6dc1a38
JO		 10437 {
10438 .cmd = NL80211_CMD_SET_CQM,
10439 .doit = nl80211_set_cqm,
10440 .policy = nl80211_policy,
10441 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10442 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10443 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10444 },
f444de05
JB		 10445 {
10446 .cmd = NL80211_CMD_SET_CHANNEL,
10447 .doit = nl80211_set_channel,
10448 .policy = nl80211_policy,
10449 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10450 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10451 NL80211_FLAG_NEED_RTNL,
f444de05 10452 },
e8347eba
BJ		 10453 {
10454 .cmd = NL80211_CMD_SET_WDS_PEER,
10455 .doit = nl80211_set_wds_peer,
10456 .policy = nl80211_policy,
10457 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10458 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10459 NL80211_FLAG_NEED_RTNL,
e8347eba 10460 },
29cbe68c
JB		 10461 {
10462 .cmd = NL80211_CMD_JOIN_MESH,
10463 .doit = nl80211_join_mesh,
10464 .policy = nl80211_policy,
10465 .flags = GENL_ADMIN_PERM,
10466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10467 NL80211_FLAG_NEED_RTNL,
10468 },
10469 {
10470 .cmd = NL80211_CMD_LEAVE_MESH,
10471 .doit = nl80211_leave_mesh,
10472 .policy = nl80211_policy,
10473 .flags = GENL_ADMIN_PERM,
10474 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10475 NL80211_FLAG_NEED_RTNL,
10476 },
6e0bd6c3
RL		 10477 {
10478 .cmd = NL80211_CMD_JOIN_OCB,
10479 .doit = nl80211_join_ocb,
10480 .policy = nl80211_policy,
10481 .flags = GENL_ADMIN_PERM,
10482 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10483 NL80211_FLAG_NEED_RTNL,
10484 },
10485 {
10486 .cmd = NL80211_CMD_LEAVE_OCB,
10487 .doit = nl80211_leave_ocb,
10488 .policy = nl80211_policy,
10489 .flags = GENL_ADMIN_PERM,
10490 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10491 NL80211_FLAG_NEED_RTNL,
10492 },
dfb89c56 10493#ifdef CONFIG_PM
ff1b6e69
JB		 10494 {
10495 .cmd = NL80211_CMD_GET_WOWLAN,
10496 .doit = nl80211_get_wowlan,
10497 .policy = nl80211_policy,
10498 /* can be retrieved by unprivileged users */
10499 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10500 NL80211_FLAG_NEED_RTNL,
10501 },
10502 {
10503 .cmd = NL80211_CMD_SET_WOWLAN,
10504 .doit = nl80211_set_wowlan,
10505 .policy = nl80211_policy,
10506 .flags = GENL_ADMIN_PERM,
10507 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10508 NL80211_FLAG_NEED_RTNL,
10509 },
dfb89c56 10510#endif
e5497d76
JB		 10511 {
10512 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10513 .doit = nl80211_set_rekey_data,
10514 .policy = nl80211_policy,
10515 .flags = GENL_ADMIN_PERM,
10516 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10517 NL80211_FLAG_NEED_RTNL |
10518 NL80211_FLAG_CLEAR_SKB,
e5497d76 10519 },
109086ce
AN		 10520 {
10521 .cmd = NL80211_CMD_TDLS_MGMT,
10522 .doit = nl80211_tdls_mgmt,
10523 .policy = nl80211_policy,
10524 .flags = GENL_ADMIN_PERM,
10525 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10526 NL80211_FLAG_NEED_RTNL,
10527 },
10528 {
10529 .cmd = NL80211_CMD_TDLS_OPER,
10530 .doit = nl80211_tdls_oper,
10531 .policy = nl80211_policy,
10532 .flags = GENL_ADMIN_PERM,
10533 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10534 NL80211_FLAG_NEED_RTNL,
10535 },
28946da7
JB		 10536 {
10537 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10538 .doit = nl80211_register_unexpected_frame,
10539 .policy = nl80211_policy,
10540 .flags = GENL_ADMIN_PERM,
10541 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10542 NL80211_FLAG_NEED_RTNL,
10543 },
7f6cf311
JB		 10544 {
10545 .cmd = NL80211_CMD_PROBE_CLIENT,
10546 .doit = nl80211_probe_client,
10547 .policy = nl80211_policy,
10548 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10549 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10550 NL80211_FLAG_NEED_RTNL,
10551 },
5e760230
JB		 10552 {
10553 .cmd = NL80211_CMD_REGISTER_BEACONS,
10554 .doit = nl80211_register_beacons,
10555 .policy = nl80211_policy,
10556 .flags = GENL_ADMIN_PERM,
10557 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10558 NL80211_FLAG_NEED_RTNL,
10559 },
1d9d9213
SW		 10560 {
10561 .cmd = NL80211_CMD_SET_NOACK_MAP,
10562 .doit = nl80211_set_noack_map,
10563 .policy = nl80211_policy,
10564 .flags = GENL_ADMIN_PERM,
10565 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10566 NL80211_FLAG_NEED_RTNL,
10567 },
98104fde
JB		 10568 {
10569 .cmd = NL80211_CMD_START_P2P_DEVICE,
10570 .doit = nl80211_start_p2p_device,
10571 .policy = nl80211_policy,
10572 .flags = GENL_ADMIN_PERM,
10573 .internal_flags = NL80211_FLAG_NEED_WDEV |
10574 NL80211_FLAG_NEED_RTNL,
10575 },
10576 {
10577 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10578 .doit = nl80211_stop_p2p_device,
10579 .policy = nl80211_policy,
10580 .flags = GENL_ADMIN_PERM,
10581 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10582 NL80211_FLAG_NEED_RTNL,
10583 },
f4e583c8
AQ		 10584 {
10585 .cmd = NL80211_CMD_SET_MCAST_RATE,
10586 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10587 .policy = nl80211_policy,
10588 .flags = GENL_ADMIN_PERM,
10589 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10590 NL80211_FLAG_NEED_RTNL,
10591 },
10592 {
10593 .cmd = NL80211_CMD_SET_MAC_ACL,
10594 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10595 .policy = nl80211_policy,
10596 .flags = GENL_ADMIN_PERM,
10597 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10598 NL80211_FLAG_NEED_RTNL,
10599 },
04f39047
SW		 10600 {
10601 .cmd = NL80211_CMD_RADAR_DETECT,
10602 .doit = nl80211_start_radar_detection,
10603 .policy = nl80211_policy,
10604 .flags = GENL_ADMIN_PERM,
10605 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10606 NL80211_FLAG_NEED_RTNL,
10607 },
3713b4e3
JB		 10608 {
10609 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10610 .doit = nl80211_get_protocol_features,
10611 .policy = nl80211_policy,
10612 },
355199e0
JM		 10613 {
10614 .cmd = NL80211_CMD_UPDATE_FT_IES,
10615 .doit = nl80211_update_ft_ies,
10616 .policy = nl80211_policy,
10617 .flags = GENL_ADMIN_PERM,
10618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10619 NL80211_FLAG_NEED_RTNL,
10620 },
5de17984
AS		 10621 {
10622 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10623 .doit = nl80211_crit_protocol_start,
10624 .policy = nl80211_policy,
10625 .flags = GENL_ADMIN_PERM,
10626 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10627 NL80211_FLAG_NEED_RTNL,
10628 },
10629 {
10630 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10631 .doit = nl80211_crit_protocol_stop,
10632 .policy = nl80211_policy,
10633 .flags = GENL_ADMIN_PERM,
10634 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10635 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10636 },
10637 {
10638 .cmd = NL80211_CMD_GET_COALESCE,
10639 .doit = nl80211_get_coalesce,
10640 .policy = nl80211_policy,
10641 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10642 NL80211_FLAG_NEED_RTNL,
10643 },
10644 {
10645 .cmd = NL80211_CMD_SET_COALESCE,
10646 .doit = nl80211_set_coalesce,
10647 .policy = nl80211_policy,
10648 .flags = GENL_ADMIN_PERM,
10649 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10650 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10651 },
10652 {
10653 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10654 .doit = nl80211_channel_switch,
10655 .policy = nl80211_policy,
10656 .flags = GENL_ADMIN_PERM,
10657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10658 NL80211_FLAG_NEED_RTNL,
10659 },
ad7e718c
JB		 10660 {
10661 .cmd = NL80211_CMD_VENDOR,
10662 .doit = nl80211_vendor_cmd,
10663 .policy = nl80211_policy,
10664 .flags = GENL_ADMIN_PERM,
10665 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10666 NL80211_FLAG_NEED_RTNL,
10667 },
fa9ffc74
KP		 10668 {
10669 .cmd = NL80211_CMD_SET_QOS_MAP,
10670 .doit = nl80211_set_qos_map,
10671 .policy = nl80211_policy,
10672 .flags = GENL_ADMIN_PERM,
10673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10674 NL80211_FLAG_NEED_RTNL,
10675 },
960d01ac
JB		 10676 {
10677 .cmd = NL80211_CMD_ADD_TX_TS,
10678 .doit = nl80211_add_tx_ts,
10679 .policy = nl80211_policy,
10680 .flags = GENL_ADMIN_PERM,
10681 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10682 NL80211_FLAG_NEED_RTNL,
10683 },
10684 {
10685 .cmd = NL80211_CMD_DEL_TX_TS,
10686 .doit = nl80211_del_tx_ts,
10687 .policy = nl80211_policy,
10688 .flags = GENL_ADMIN_PERM,
10689 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10690 NL80211_FLAG_NEED_RTNL,
10691 },
1057d35e
AN		 10692 {
10693 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10694 .doit = nl80211_tdls_channel_switch,
10695 .policy = nl80211_policy,
10696 .flags = GENL_ADMIN_PERM,
10697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10698 NL80211_FLAG_NEED_RTNL,
10699 },
10700 {
10701 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10702 .doit = nl80211_tdls_cancel_channel_switch,
10703 .policy = nl80211_policy,
10704 .flags = GENL_ADMIN_PERM,
10705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10706 NL80211_FLAG_NEED_RTNL,
10707 },
55682965 10708};
9588bbd5 10709
55682965
JB		 10710/* notification functions */
10711
3bb20556
JB		 10712void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10713 enum nl80211_commands cmd)
55682965
JB		 10714{
10715 struct sk_buff *msg;
86e8cf98 10716 struct nl80211_dump_wiphy_state state = {};
55682965 10717
3bb20556
JB		 10718 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10719 cmd != NL80211_CMD_DEL_WIPHY);
10720
fd2120ca 10721 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10722 if (!msg)
10723 return;
10724
3bb20556 10725 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10726 nlmsg_free(msg);
10727 return;
10728 }
10729
68eb5503 10730 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10731 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10732}
10733
362a415d
JB		 10734static int nl80211_add_scan_req(struct sk_buff *msg,
10735 struct cfg80211_registered_device *rdev)
10736{
10737 struct cfg80211_scan_request *req = rdev->scan_req;
10738 struct nlattr *nest;
10739 int i;
10740
10741 if (WARN_ON(!req))
10742 return 0;
10743
10744 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10745 if (!nest)
10746 goto nla_put_failure;
9360ffd1
DM		 10747 for (i = 0; i < req->n_ssids; i++) {
10748 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10749 goto nla_put_failure;
10750 }
362a415d
JB		 10751 nla_nest_end(msg, nest);
10752
10753 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10754 if (!nest)
10755 goto nla_put_failure;
9360ffd1
DM		 10756 for (i = 0; i < req->n_channels; i++) {
10757 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10758 goto nla_put_failure;
10759 }
362a415d
JB		 10760 nla_nest_end(msg, nest);
10761
9360ffd1
DM		 10762 if (req->ie &&
10763 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10764 goto nla_put_failure;
362a415d 10765
ae917c9f
JB		 10766 if (req->flags &&
10767 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10768 goto nla_put_failure;
ed473771 10769
362a415d
JB		 10770 return 0;
10771 nla_put_failure:
10772 return -ENOBUFS;
10773}
10774
a538e2d5
JB		 10775static int nl80211_send_scan_msg(struct sk_buff *msg,
10776 struct cfg80211_registered_device *rdev,
fd014284 10777 struct wireless_dev *wdev,
15e47304 10778 u32 portid, u32 seq, int flags,
a538e2d5 10779 u32 cmd)
2a519311
JB		 10780{
10781 void *hdr;
10782
15e47304 10783 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10784 if (!hdr)
10785 return -1;
10786
9360ffd1 10787 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10788 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10789 wdev->netdev->ifindex)) ||
10790 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10791 goto nla_put_failure;
2a519311 10792
362a415d
JB		 10793 /* ignore errors and send incomplete event anyway */
10794 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10795
10796 return genlmsg_end(msg, hdr);
10797
10798 nla_put_failure:
10799 genlmsg_cancel(msg, hdr);
10800 return -EMSGSIZE;
10801}
10802
807f8a8c
LC		 10803static int
10804nl80211_send_sched_scan_msg(struct sk_buff *msg,
10805 struct cfg80211_registered_device *rdev,
10806 struct net_device *netdev,
15e47304 10807 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10808{
10809 void *hdr;
10810
15e47304 10811 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10812 if (!hdr)
10813 return -1;
10814
9360ffd1
DM		 10815 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10816 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10817 goto nla_put_failure;
807f8a8c
LC		 10818
10819 return genlmsg_end(msg, hdr);
10820
10821 nla_put_failure:
10822 genlmsg_cancel(msg, hdr);
10823 return -EMSGSIZE;
10824}
10825
a538e2d5 10826void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10827 struct wireless_dev *wdev)
a538e2d5
JB		 10828{
10829 struct sk_buff *msg;
10830
58050fce 10831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10832 if (!msg)
10833 return;
10834
fd014284 10835 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10836 NL80211_CMD_TRIGGER_SCAN) < 0) {
10837 nlmsg_free(msg);
10838 return;
10839 }
10840
68eb5503 10841 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10842 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10843}
10844
f9d15d16
JB		 10845struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10846 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10847{
10848 struct sk_buff *msg;
10849
fd2120ca 10850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10851 if (!msg)
f9d15d16 10852 return NULL;
2a519311 10853
fd014284 10854 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10855 aborted ? NL80211_CMD_SCAN_ABORTED :
10856 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10857 nlmsg_free(msg);
f9d15d16 10858 return NULL;
2a519311
JB		 10859 }
10860
f9d15d16 10861 return msg;
2a519311
JB		 10862}
10863
f9d15d16
JB		 10864void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10865 struct sk_buff *msg)
2a519311 10866{
2a519311
JB		 10867 if (!msg)
10868 return;
10869
68eb5503 10870 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10871 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10872}
10873
807f8a8c
LC		 10874void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10875 struct net_device *netdev)
10876{
10877 struct sk_buff *msg;
10878
10879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10880 if (!msg)
10881 return;
10882
10883 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10884 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10885 nlmsg_free(msg);
10886 return;
10887 }
10888
68eb5503 10889 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10890 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10891}
10892
10893void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10894 struct net_device *netdev, u32 cmd)
10895{
10896 struct sk_buff *msg;
10897
58050fce 10898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10899 if (!msg)
10900 return;
10901
10902 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10903 nlmsg_free(msg);
10904 return;
10905 }
10906
68eb5503 10907 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10908 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10909}
10910
73d54c9e
LR		 10911/*
10912 * This can happen on global regulatory changes or device specific settings
10913 * based on custom world regulatory domains.
10914 */
10915void nl80211_send_reg_change_event(struct regulatory_request *request)
10916{
10917 struct sk_buff *msg;
10918 void *hdr;
10919
fd2120ca 10920 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10921 if (!msg)
10922 return;
10923
10924 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10925 if (!hdr) {
10926 nlmsg_free(msg);
10927 return;
10928 }
10929
10930 /* Userspace can always count this one always being set */
9360ffd1
DM		 10931 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10932 goto nla_put_failure;
10933
10934 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10935 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10936 NL80211_REGDOM_TYPE_WORLD))
10937 goto nla_put_failure;
10938 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10939 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10940 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10941 goto nla_put_failure;
10942 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10943 request->intersect) {
10944 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10945 NL80211_REGDOM_TYPE_INTERSECTION))
10946 goto nla_put_failure;
10947 } else {
10948 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10949 NL80211_REGDOM_TYPE_COUNTRY) ||
10950 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10951 request->alpha2))
10952 goto nla_put_failure;
10953 }
10954
f4173766 10955 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10956 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10957 goto nla_put_failure;
73d54c9e 10958
3b7b72ee 10959 genlmsg_end(msg, hdr);
73d54c9e 10960
bc43b28c 10961 rcu_read_lock();
68eb5503 10962 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10963 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10964 rcu_read_unlock();
73d54c9e
LR		 10965
10966 return;
10967
10968nla_put_failure:
10969 genlmsg_cancel(msg, hdr);
10970 nlmsg_free(msg);
10971}
10972
6039f6d2
JM		 10973static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10974 struct net_device *netdev,
10975 const u8 *buf, size_t len,
b0b6aa2c
EP		 10976 enum nl80211_commands cmd, gfp_t gfp,
10977 int uapsd_queues)
6039f6d2
JM		 10978{
10979 struct sk_buff *msg;
10980 void *hdr;
10981
e6d6e342 10982 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10983 if (!msg)
10984 return;
10985
10986 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10987 if (!hdr) {
10988 nlmsg_free(msg);
10989 return;
10990 }
10991
9360ffd1
DM		 10992 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10993 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10994 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10995 goto nla_put_failure;
6039f6d2 10996
b0b6aa2c
EP		 10997 if (uapsd_queues >= 0) {
10998 struct nlattr *nla_wmm =
10999 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11000 if (!nla_wmm)
11001 goto nla_put_failure;
11002
11003 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11004 uapsd_queues))
11005 goto nla_put_failure;
11006
11007 nla_nest_end(msg, nla_wmm);
11008 }
11009
3b7b72ee 11010 genlmsg_end(msg, hdr);
6039f6d2 11011
68eb5503 11012 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11013 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11014 return;
11015
11016 nla_put_failure:
11017 genlmsg_cancel(msg, hdr);
11018 nlmsg_free(msg);
11019}
11020
11021void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11022 struct net_device *netdev, const u8 *buf,
11023 size_t len, gfp_t gfp)
6039f6d2
JM		 11024{
11025 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11026 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11027}
11028
11029void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11030 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11031 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11032{
e6d6e342 11033 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11034 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11035}
11036
53b46b84 11037void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11038 struct net_device *netdev, const u8 *buf,
11039 size_t len, gfp_t gfp)
6039f6d2
JM		 11040{
11041 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11042 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11043}
11044
53b46b84
JM		 11045void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11046 struct net_device *netdev, const u8 *buf,
e6d6e342 11047 size_t len, gfp_t gfp)
6039f6d2
JM		 11048{
11049 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11050 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11051}
11052
6ff57cf8
JB		 11053void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11054 size_t len)
cf4e594e 11055{
947add36
JB		 11056 struct wireless_dev *wdev = dev->ieee80211_ptr;
11057 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11058 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11059 const struct ieee80211_mgmt *mgmt = (void *)buf;
11060 u32 cmd;
947add36 11061
6ff57cf8
JB		 11062 if (WARN_ON(len < 2))
11063 return;
cf4e594e 11064
6ff57cf8
JB		 11065 if (ieee80211_is_deauth(mgmt->frame_control))
11066 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11067 else
11068 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11069
6ff57cf8 11070 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11071 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11072}
6ff57cf8 11073EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11074
1b06bb40
LR		 11075static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11076 struct net_device *netdev, int cmd,
e6d6e342 11077 const u8 *addr, gfp_t gfp)
1965c853
JM		 11078{
11079 struct sk_buff *msg;
11080 void *hdr;
11081
e6d6e342 11082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11083 if (!msg)
11084 return;
11085
11086 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11087 if (!hdr) {
11088 nlmsg_free(msg);
11089 return;
11090 }
11091
9360ffd1
DM		 11092 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11093 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11094 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11095 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11096 goto nla_put_failure;
1965c853 11097
3b7b72ee 11098 genlmsg_end(msg, hdr);
1965c853 11099
68eb5503 11100 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11101 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11102 return;
11103
11104 nla_put_failure:
11105 genlmsg_cancel(msg, hdr);
11106 nlmsg_free(msg);
11107}
11108
11109void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11110 struct net_device *netdev, const u8 *addr,
11111 gfp_t gfp)
1965c853
JM		 11112{
11113 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11114 addr, gfp);
1965c853
JM		 11115}
11116
11117void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11118 struct net_device *netdev, const u8 *addr,
11119 gfp_t gfp)
1965c853 11120{
e6d6e342
JB		 11121 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11122 addr, gfp);
1965c853
JM		 11123}
11124
b23aa676
SO		 11125void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11126 struct net_device *netdev, const u8 *bssid,
11127 const u8 *req_ie, size_t req_ie_len,
11128 const u8 *resp_ie, size_t resp_ie_len,
11129 u16 status, gfp_t gfp)
11130{
11131 struct sk_buff *msg;
11132 void *hdr;
11133
58050fce 11134 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11135 if (!msg)
11136 return;
11137
11138 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11139 if (!hdr) {
11140 nlmsg_free(msg);
11141 return;
11142 }
11143
9360ffd1
DM		 11144 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11145 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11146 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11147 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11148 (req_ie &&
11149 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11150 (resp_ie &&
11151 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11152 goto nla_put_failure;
b23aa676 11153
3b7b72ee 11154 genlmsg_end(msg, hdr);
b23aa676 11155
68eb5503 11156 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11157 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11158 return;
11159
11160 nla_put_failure:
11161 genlmsg_cancel(msg, hdr);
11162 nlmsg_free(msg);
11163
11164}
11165
11166void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11167 struct net_device *netdev, const u8 *bssid,
11168 const u8 *req_ie, size_t req_ie_len,
11169 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11170{
11171 struct sk_buff *msg;
11172 void *hdr;
11173
58050fce 11174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11175 if (!msg)
11176 return;
11177
11178 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11179 if (!hdr) {
11180 nlmsg_free(msg);
11181 return;
11182 }
11183
9360ffd1
DM		 11184 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11185 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11186 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11187 (req_ie &&
11188 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11189 (resp_ie &&
11190 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11191 goto nla_put_failure;
b23aa676 11192
3b7b72ee 11193 genlmsg_end(msg, hdr);
b23aa676 11194
68eb5503 11195 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11196 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11197 return;
11198
11199 nla_put_failure:
11200 genlmsg_cancel(msg, hdr);
11201 nlmsg_free(msg);
11202
11203}
11204
11205void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11206 struct net_device *netdev, u16 reason,
667503dd 11207 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11208{
11209 struct sk_buff *msg;
11210 void *hdr;
11211
58050fce 11212 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11213 if (!msg)
11214 return;
11215
11216 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11217 if (!hdr) {
11218 nlmsg_free(msg);
11219 return;
11220 }
11221
9360ffd1
DM		 11222 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11223 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11224 (from_ap && reason &&
11225 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11226 (from_ap &&
11227 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11228 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11229 goto nla_put_failure;
b23aa676 11230
3b7b72ee 11231 genlmsg_end(msg, hdr);
b23aa676 11232
68eb5503 11233 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11234 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11235 return;
11236
11237 nla_put_failure:
11238 genlmsg_cancel(msg, hdr);
11239 nlmsg_free(msg);
11240
11241}
11242
04a773ad
JB		 11243void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11244 struct net_device *netdev, const u8 *bssid,
11245 gfp_t gfp)
11246{
11247 struct sk_buff *msg;
11248 void *hdr;
11249
fd2120ca 11250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11251 if (!msg)
11252 return;
11253
11254 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11255 if (!hdr) {
11256 nlmsg_free(msg);
11257 return;
11258 }
11259
9360ffd1
DM		 11260 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11261 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11262 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11263 goto nla_put_failure;
04a773ad 11264
3b7b72ee 11265 genlmsg_end(msg, hdr);
04a773ad 11266
68eb5503 11267 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11268 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11269 return;
11270
11271 nla_put_failure:
11272 genlmsg_cancel(msg, hdr);
11273 nlmsg_free(msg);
11274}
11275
947add36
JB		 11276void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11277 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11278{
947add36 11279 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11280 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11281 struct sk_buff *msg;
11282 void *hdr;
11283
947add36
JB		 11284 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11285 return;
11286
11287 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11288
c93b5e71
JC		 11289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11290 if (!msg)
11291 return;
11292
11293 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11294 if (!hdr) {
11295 nlmsg_free(msg);
11296 return;
11297 }
11298
9360ffd1 11299 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11300 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11301 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11302 (ie_len && ie &&
11303 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11304 goto nla_put_failure;
c93b5e71 11305
3b7b72ee 11306 genlmsg_end(msg, hdr);
c93b5e71 11307
68eb5503 11308 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11309 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11310 return;
11311
11312 nla_put_failure:
11313 genlmsg_cancel(msg, hdr);
11314 nlmsg_free(msg);
11315}
947add36 11316EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11317
a3b8b056
JM		 11318void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11319 struct net_device *netdev, const u8 *addr,
11320 enum nl80211_key_type key_type, int key_id,
e6d6e342 11321 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11322{
11323 struct sk_buff *msg;
11324 void *hdr;
11325
e6d6e342 11326 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11327 if (!msg)
11328 return;
11329
11330 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11331 if (!hdr) {
11332 nlmsg_free(msg);
11333 return;
11334 }
11335
9360ffd1
DM		 11336 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11337 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11338 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11339 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11340 (key_id != -1 &&
11341 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11342 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11343 goto nla_put_failure;
a3b8b056 11344
3b7b72ee 11345 genlmsg_end(msg, hdr);
a3b8b056 11346
68eb5503 11347 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11348 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11349 return;
11350
11351 nla_put_failure:
11352 genlmsg_cancel(msg, hdr);
11353 nlmsg_free(msg);
11354}
11355
6bad8766
LR		 11356void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11357 struct ieee80211_channel *channel_before,
11358 struct ieee80211_channel *channel_after)
11359{
11360 struct sk_buff *msg;
11361 void *hdr;
11362 struct nlattr *nl_freq;
11363
fd2120ca 11364 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11365 if (!msg)
11366 return;
11367
11368 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11369 if (!hdr) {
11370 nlmsg_free(msg);
11371 return;
11372 }
11373
11374 /*
11375 * Since we are applying the beacon hint to a wiphy we know its
11376 * wiphy_idx is valid
11377 */
9360ffd1
DM		 11378 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11379 goto nla_put_failure;
6bad8766
LR		 11380
11381 /* Before */
11382 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11383 if (!nl_freq)
11384 goto nla_put_failure;
cdc89b97 11385 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11386 goto nla_put_failure;
11387 nla_nest_end(msg, nl_freq);
11388
11389 /* After */
11390 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11391 if (!nl_freq)
11392 goto nla_put_failure;
cdc89b97 11393 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11394 goto nla_put_failure;
11395 nla_nest_end(msg, nl_freq);
11396
3b7b72ee 11397 genlmsg_end(msg, hdr);
6bad8766 11398
463d0183 11399 rcu_read_lock();
68eb5503 11400 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11401 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11402 rcu_read_unlock();
6bad8766
LR		 11403
11404 return;
11405
11406nla_put_failure:
11407 genlmsg_cancel(msg, hdr);
11408 nlmsg_free(msg);
11409}
11410
9588bbd5
JM		 11411static void nl80211_send_remain_on_chan_event(
11412 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11413 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11414 struct ieee80211_channel *chan,
9588bbd5
JM		 11415 unsigned int duration, gfp_t gfp)
11416{
11417 struct sk_buff *msg;
11418 void *hdr;
11419
11420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11421 if (!msg)
11422 return;
11423
11424 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11425 if (!hdr) {
11426 nlmsg_free(msg);
11427 return;
11428 }
11429
9360ffd1 11430 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11431 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11432 wdev->netdev->ifindex)) ||
00f53350 11433 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11434 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11435 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11436 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11437 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11438 goto nla_put_failure;
9588bbd5 11439
9360ffd1
DM		 11440 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11441 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11442 goto nla_put_failure;
9588bbd5 11443
3b7b72ee 11444 genlmsg_end(msg, hdr);
9588bbd5 11445
68eb5503 11446 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11447 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11448 return;
11449
11450 nla_put_failure:
11451 genlmsg_cancel(msg, hdr);
11452 nlmsg_free(msg);
11453}
11454
947add36
JB		 11455void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11456 struct ieee80211_channel *chan,
11457 unsigned int duration, gfp_t gfp)
9588bbd5 11458{
947add36 11459 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11460 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11461
11462 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11463 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11464 rdev, wdev, cookie, chan,
42d97a59 11465 duration, gfp);
9588bbd5 11466}
947add36 11467EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11468
947add36
JB		 11469void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11470 struct ieee80211_channel *chan,
11471 gfp_t gfp)
9588bbd5 11472{
947add36 11473 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11474 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11475
11476 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11477 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11478 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11479}
947add36 11480EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11481
947add36
JB		 11482void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11483 struct station_info *sinfo, gfp_t gfp)
98b62183 11484{
947add36 11485 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11486 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11487 struct sk_buff *msg;
11488
947add36
JB		 11489 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11490
58050fce 11491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11492 if (!msg)
11493 return;
11494
66266b3a
JL		 11495 if (nl80211_send_station(msg, 0, 0, 0,
11496 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11497 nlmsg_free(msg);
11498 return;
11499 }
11500
68eb5503 11501 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11502 NL80211_MCGRP_MLME, gfp);
98b62183 11503}
947add36 11504EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11505
947add36 11506void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11507{
947add36 11508 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11509 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11510 struct sk_buff *msg;
11511 void *hdr;
11512
947add36
JB		 11513 trace_cfg80211_del_sta(dev, mac_addr);
11514
58050fce 11515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11516 if (!msg)
11517 return;
11518
11519 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11520 if (!hdr) {
11521 nlmsg_free(msg);
11522 return;
11523 }
11524
9360ffd1
DM		 11525 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11526 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11527 goto nla_put_failure;
ec15e68b 11528
3b7b72ee 11529 genlmsg_end(msg, hdr);
ec15e68b 11530
68eb5503 11531 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11532 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11533 return;
11534
11535 nla_put_failure:
11536 genlmsg_cancel(msg, hdr);
11537 nlmsg_free(msg);
11538}
947add36 11539EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11540
947add36
JB		 11541void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11542 enum nl80211_connect_failed_reason reason,
11543 gfp_t gfp)
ed44a951 11544{
947add36 11545 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11546 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11547 struct sk_buff *msg;
11548 void *hdr;
11549
11550 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11551 if (!msg)
11552 return;
11553
11554 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11555 if (!hdr) {
11556 nlmsg_free(msg);
11557 return;
11558 }
11559
11560 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11561 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11562 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11563 goto nla_put_failure;
11564
11565 genlmsg_end(msg, hdr);
11566
68eb5503 11567 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11568 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11569 return;
11570
11571 nla_put_failure:
11572 genlmsg_cancel(msg, hdr);
11573 nlmsg_free(msg);
11574}
947add36 11575EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11576
b92ab5d8
JB		 11577static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11578 const u8 *addr, gfp_t gfp)
28946da7
JB		 11579{
11580 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11581 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11582 struct sk_buff *msg;
11583 void *hdr;
15e47304 11584 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11585
15e47304 11586 if (!nlportid)
28946da7
JB		 11587 return false;
11588
11589 msg = nlmsg_new(100, gfp);
11590 if (!msg)
11591 return true;
11592
b92ab5d8 11593 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11594 if (!hdr) {
11595 nlmsg_free(msg);
11596 return true;
11597 }
11598
9360ffd1
DM		 11599 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11600 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11601 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11602 goto nla_put_failure;
28946da7 11603
9c90a9f6 11604 genlmsg_end(msg, hdr);
15e47304 11605 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11606 return true;
11607
11608 nla_put_failure:
11609 genlmsg_cancel(msg, hdr);
11610 nlmsg_free(msg);
11611 return true;
11612}
11613
947add36
JB		 11614bool cfg80211_rx_spurious_frame(struct net_device *dev,
11615 const u8 *addr, gfp_t gfp)
b92ab5d8 11616{
947add36
JB		 11617 struct wireless_dev *wdev = dev->ieee80211_ptr;
11618 bool ret;
11619
11620 trace_cfg80211_rx_spurious_frame(dev, addr);
11621
11622 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11623 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11624 trace_cfg80211_return_bool(false);
11625 return false;
11626 }
11627 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11628 addr, gfp);
11629 trace_cfg80211_return_bool(ret);
11630 return ret;
b92ab5d8 11631}
947add36 11632EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11633
947add36
JB		 11634bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11635 const u8 *addr, gfp_t gfp)
b92ab5d8 11636{
947add36
JB		 11637 struct wireless_dev *wdev = dev->ieee80211_ptr;
11638 bool ret;
11639
11640 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11641
11642 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11643 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11644 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11645 trace_cfg80211_return_bool(false);
11646 return false;
11647 }
11648 ret = __nl80211_unexpected_frame(dev,
11649 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11650 addr, gfp);
11651 trace_cfg80211_return_bool(ret);
11652 return ret;
b92ab5d8 11653}
947add36 11654EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11655
2e161f78 11656int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11657 struct wireless_dev *wdev, u32 nlportid,
804483e9 11658 int freq, int sig_dbm,
19504cf5 11659 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11660{
71bbc994 11661 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11662 struct sk_buff *msg;
11663 void *hdr;
026331c4
JM		 11664
11665 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11666 if (!msg)
11667 return -ENOMEM;
11668
2e161f78 11669 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11670 if (!hdr) {
11671 nlmsg_free(msg);
11672 return -ENOMEM;
11673 }
11674
9360ffd1 11675 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11676 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11677 netdev->ifindex)) ||
a838490b 11678 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11679 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11680 (sig_dbm &&
11681 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11682 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11683 (flags &&
11684 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11685 goto nla_put_failure;
026331c4 11686
3b7b72ee 11687 genlmsg_end(msg, hdr);
026331c4 11688
15e47304 11689 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11690
11691 nla_put_failure:
11692 genlmsg_cancel(msg, hdr);
11693 nlmsg_free(msg);
11694 return -ENOBUFS;
11695}
11696
947add36
JB		 11697void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11698 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11699{
947add36 11700 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11701 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11702 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11703 struct sk_buff *msg;
11704 void *hdr;
11705
947add36
JB		 11706 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11707
026331c4
JM		 11708 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11709 if (!msg)
11710 return;
11711
2e161f78 11712 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11713 if (!hdr) {
11714 nlmsg_free(msg);
11715 return;
11716 }
11717
9360ffd1 11718 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11719 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11720 netdev->ifindex)) ||
a838490b 11721 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11722 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11723 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11724 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11725 goto nla_put_failure;
026331c4 11726
3b7b72ee 11727 genlmsg_end(msg, hdr);
026331c4 11728
68eb5503 11729 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11730 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11731 return;
11732
11733 nla_put_failure:
11734 genlmsg_cancel(msg, hdr);
11735 nlmsg_free(msg);
11736}
947add36 11737EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11738
947add36
JB		 11739void cfg80211_cqm_rssi_notify(struct net_device *dev,
11740 enum nl80211_cqm_rssi_threshold_event rssi_event,
11741 gfp_t gfp)
d6dc1a38 11742{
947add36
JB		 11743 struct wireless_dev *wdev = dev->ieee80211_ptr;
11744 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11745 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11746 struct sk_buff *msg;
11747 struct nlattr *pinfoattr;
11748 void *hdr;
11749
947add36
JB		 11750 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11751
58050fce 11752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11753 if (!msg)
11754 return;
11755
11756 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11757 if (!hdr) {
11758 nlmsg_free(msg);
11759 return;
11760 }
11761
9360ffd1 11762 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11763 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11764 goto nla_put_failure;
d6dc1a38
JO		 11765
11766 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11767 if (!pinfoattr)
11768 goto nla_put_failure;
11769
9360ffd1
DM		 11770 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11771 rssi_event))
11772 goto nla_put_failure;
d6dc1a38
JO		 11773
11774 nla_nest_end(msg, pinfoattr);
11775
3b7b72ee 11776 genlmsg_end(msg, hdr);
d6dc1a38 11777
68eb5503 11778 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11779 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11780 return;
11781
11782 nla_put_failure:
11783 genlmsg_cancel(msg, hdr);
11784 nlmsg_free(msg);
11785}
947add36 11786EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11787
947add36
JB		 11788static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11789 struct net_device *netdev, const u8 *bssid,
11790 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11791{
11792 struct sk_buff *msg;
11793 struct nlattr *rekey_attr;
11794 void *hdr;
11795
58050fce 11796 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11797 if (!msg)
11798 return;
11799
11800 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11801 if (!hdr) {
11802 nlmsg_free(msg);
11803 return;
11804 }
11805
9360ffd1
DM		 11806 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11807 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11808 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11809 goto nla_put_failure;
e5497d76
JB		 11810
11811 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11812 if (!rekey_attr)
11813 goto nla_put_failure;
11814
9360ffd1
DM		 11815 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11816 NL80211_REPLAY_CTR_LEN, replay_ctr))
11817 goto nla_put_failure;
e5497d76
JB		 11818
11819 nla_nest_end(msg, rekey_attr);
11820
3b7b72ee 11821 genlmsg_end(msg, hdr);
e5497d76 11822
68eb5503 11823 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11824 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11825 return;
11826
11827 nla_put_failure:
11828 genlmsg_cancel(msg, hdr);
11829 nlmsg_free(msg);
11830}
11831
947add36
JB		 11832void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11833 const u8 *replay_ctr, gfp_t gfp)
11834{
11835 struct wireless_dev *wdev = dev->ieee80211_ptr;
11836 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11837 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11838
11839 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11840 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11841}
11842EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11843
11844static void
11845nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11846 struct net_device *netdev, int index,
11847 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11848{
11849 struct sk_buff *msg;
11850 struct nlattr *attr;
11851 void *hdr;
11852
58050fce 11853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11854 if (!msg)
11855 return;
11856
11857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11858 if (!hdr) {
11859 nlmsg_free(msg);
11860 return;
11861 }
11862
9360ffd1
DM		 11863 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11864 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11865 goto nla_put_failure;
c9df56b4
JM		 11866
11867 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11868 if (!attr)
11869 goto nla_put_failure;
11870
9360ffd1
DM		 11871 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11872 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11873 (preauth &&
11874 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11875 goto nla_put_failure;
c9df56b4
JM		 11876
11877 nla_nest_end(msg, attr);
11878
3b7b72ee 11879 genlmsg_end(msg, hdr);
c9df56b4 11880
68eb5503 11881 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11882 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11883 return;
11884
11885 nla_put_failure:
11886 genlmsg_cancel(msg, hdr);
11887 nlmsg_free(msg);
11888}
11889
947add36
JB		 11890void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11891 const u8 *bssid, bool preauth, gfp_t gfp)
11892{
11893 struct wireless_dev *wdev = dev->ieee80211_ptr;
11894 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11895 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11896
11897 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11898 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11899}
11900EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11901
11902static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11903 struct net_device *netdev,
11904 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 11905 gfp_t gfp,
11906 enum nl80211_commands notif,
11907 u8 count)
5314526b
TP		 11908{
11909 struct sk_buff *msg;
11910 void *hdr;
11911
58050fce 11912 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11913 if (!msg)
11914 return;
11915
f8d7552e 11916 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 11917 if (!hdr) {
11918 nlmsg_free(msg);
11919 return;
11920 }
11921
683b6d3b
JB		 11922 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11923 goto nla_put_failure;
11924
11925 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11926 goto nla_put_failure;
5314526b 11927
f8d7552e
LC		 11928 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
11929 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
11930 goto nla_put_failure;
11931
5314526b
TP		 11932 genlmsg_end(msg, hdr);
11933
68eb5503 11934 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11935 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11936 return;
11937
11938 nla_put_failure:
11939 genlmsg_cancel(msg, hdr);
11940 nlmsg_free(msg);
11941}
11942
947add36
JB		 11943void cfg80211_ch_switch_notify(struct net_device *dev,
11944 struct cfg80211_chan_def *chandef)
84f10708 11945{
947add36
JB		 11946 struct wireless_dev *wdev = dev->ieee80211_ptr;
11947 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11948 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11949
e487eaeb 11950 ASSERT_WDEV_LOCK(wdev);
947add36 11951
e487eaeb 11952 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 11953
9e0e2961 11954 wdev->chandef = *chandef;
96f55f12 11955 wdev->preset_chandef = *chandef;
f8d7552e
LC		 11956 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
11957 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 11958}
11959EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11960
f8d7552e
LC		 11961void cfg80211_ch_switch_started_notify(struct net_device *dev,
11962 struct cfg80211_chan_def *chandef,
11963 u8 count)
11964{
11965 struct wireless_dev *wdev = dev->ieee80211_ptr;
11966 struct wiphy *wiphy = wdev->wiphy;
11967 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11968
11969 trace_cfg80211_ch_switch_started_notify(dev, chandef);
11970
11971 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
11972 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
11973}
11974EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
11975
947add36
JB		 11976void cfg80211_cqm_txe_notify(struct net_device *dev,
11977 const u8 *peer, u32 num_packets,
11978 u32 rate, u32 intvl, gfp_t gfp)
11979{
11980 struct wireless_dev *wdev = dev->ieee80211_ptr;
11981 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11982 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11983 struct sk_buff *msg;
11984 struct nlattr *pinfoattr;
11985 void *hdr;
11986
11987 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11988 if (!msg)
11989 return;
11990
11991 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11992 if (!hdr) {
11993 nlmsg_free(msg);
11994 return;
11995 }
11996
11997 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11998 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11999 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
12000 goto nla_put_failure;
12001
12002 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
12003 if (!pinfoattr)
12004 goto nla_put_failure;
12005
12006 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12007 goto nla_put_failure;
12008
12009 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12010 goto nla_put_failure;
12011
12012 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12013 goto nla_put_failure;
12014
12015 nla_nest_end(msg, pinfoattr);
12016
12017 genlmsg_end(msg, hdr);
12018
68eb5503 12019 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12020 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 12021 return;
12022
12023 nla_put_failure:
12024 genlmsg_cancel(msg, hdr);
12025 nlmsg_free(msg);
12026}
947add36 12027EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 12028
04f39047
SW		 12029void
12030nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12031 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12032 enum nl80211_radar_event event,
12033 struct net_device *netdev, gfp_t gfp)
12034{
12035 struct sk_buff *msg;
12036 void *hdr;
12037
12038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12039 if (!msg)
12040 return;
12041
12042 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12043 if (!hdr) {
12044 nlmsg_free(msg);
12045 return;
12046 }
12047
12048 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12049 goto nla_put_failure;
12050
12051 /* NOP and radar events don't need a netdev parameter */
12052 if (netdev) {
12053 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12054
12055 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12056 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12057 goto nla_put_failure;
12058 }
12059
12060 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12061 goto nla_put_failure;
12062
12063 if (nl80211_send_chandef(msg, chandef))
12064 goto nla_put_failure;
12065
9c90a9f6 12066 genlmsg_end(msg, hdr);
04f39047 12067
68eb5503 12068 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12069 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12070 return;
12071
12072 nla_put_failure:
12073 genlmsg_cancel(msg, hdr);
12074 nlmsg_free(msg);
12075}
12076
947add36
JB		 12077void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12078 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 12079{
947add36
JB		 12080 struct wireless_dev *wdev = dev->ieee80211_ptr;
12081 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12082 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 12083 struct sk_buff *msg;
12084 struct nlattr *pinfoattr;
12085 void *hdr;
12086
947add36
JB		 12087 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12088
58050fce 12089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 12090 if (!msg)
12091 return;
12092
12093 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12094 if (!hdr) {
12095 nlmsg_free(msg);
12096 return;
12097 }
12098
9360ffd1 12099 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12100 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 12101 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
12102 goto nla_put_failure;
c063dbf5
JB		 12103
12104 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
12105 if (!pinfoattr)
12106 goto nla_put_failure;
12107
9360ffd1
DM		 12108 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12109 goto nla_put_failure;
c063dbf5
JB		 12110
12111 nla_nest_end(msg, pinfoattr);
12112
3b7b72ee 12113 genlmsg_end(msg, hdr);
c063dbf5 12114
68eb5503 12115 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12116 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 12117 return;
12118
12119 nla_put_failure:
12120 genlmsg_cancel(msg, hdr);
12121 nlmsg_free(msg);
12122}
947add36 12123EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 12124
7f6cf311
JB		 12125void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12126 u64 cookie, bool acked, gfp_t gfp)
12127{
12128 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12129 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12130 struct sk_buff *msg;
12131 void *hdr;
7f6cf311 12132
4ee3e063
BL		 12133 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12134
58050fce 12135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12136
7f6cf311
JB		 12137 if (!msg)
12138 return;
12139
12140 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12141 if (!hdr) {
12142 nlmsg_free(msg);
12143 return;
12144 }
12145
9360ffd1
DM		 12146 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12147 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12148 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12149 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12150 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12151 goto nla_put_failure;
7f6cf311 12152
9c90a9f6 12153 genlmsg_end(msg, hdr);
7f6cf311 12154
68eb5503 12155 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12156 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12157 return;
12158
12159 nla_put_failure:
12160 genlmsg_cancel(msg, hdr);
12161 nlmsg_free(msg);
12162}
12163EXPORT_SYMBOL(cfg80211_probe_status);
12164
5e760230
JB		 12165void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12166 const u8 *frame, size_t len,
37c73b5f 12167 int freq, int sig_dbm)
5e760230 12168{
f26cbf40 12169 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12170 struct sk_buff *msg;
12171 void *hdr;
37c73b5f 12172 struct cfg80211_beacon_registration *reg;
5e760230 12173
4ee3e063
BL		 12174 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12175
37c73b5f
BG		 12176 spin_lock_bh(&rdev->beacon_registrations_lock);
12177 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12178 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12179 if (!msg) {
12180 spin_unlock_bh(&rdev->beacon_registrations_lock);
12181 return;
12182 }
5e760230 12183
37c73b5f
BG		 12184 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12185 if (!hdr)
12186 goto nla_put_failure;
5e760230 12187
37c73b5f
BG		 12188 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12189 (freq &&
12190 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12191 (sig_dbm &&
12192 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12193 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12194 goto nla_put_failure;
5e760230 12195
37c73b5f 12196 genlmsg_end(msg, hdr);
5e760230 12197
37c73b5f
BG		 12198 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12199 }
12200 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12201 return;
12202
12203 nla_put_failure:
37c73b5f
BG		 12204 spin_unlock_bh(&rdev->beacon_registrations_lock);
12205 if (hdr)
12206 genlmsg_cancel(msg, hdr);
5e760230
JB		 12207 nlmsg_free(msg);
12208}
12209EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12210
cd8f7cb4 12211#ifdef CONFIG_PM
8cd4d456
LC		 12212static int cfg80211_net_detect_results(struct sk_buff *msg,
12213 struct cfg80211_wowlan_wakeup *wakeup)
12214{
12215 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12216 struct nlattr *nl_results, *nl_match, *nl_freqs;
12217 int i, j;
12218
12219 nl_results = nla_nest_start(
12220 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12221 if (!nl_results)
12222 return -EMSGSIZE;
12223
12224 for (i = 0; i < nd->n_matches; i++) {
12225 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12226
12227 nl_match = nla_nest_start(msg, i);
12228 if (!nl_match)
12229 break;
12230
12231 /* The SSID attribute is optional in nl80211, but for
12232 * simplicity reasons it's always present in the
12233 * cfg80211 structure. If a driver can't pass the
12234 * SSID, that needs to be changed. A zero length SSID
12235 * is still a valid SSID (wildcard), so it cannot be
12236 * used for this purpose.
12237 */
12238 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12239 match->ssid.ssid)) {
12240 nla_nest_cancel(msg, nl_match);
12241 goto out;
12242 }
12243
12244 if (match->n_channels) {
12245 nl_freqs = nla_nest_start(
12246 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12247 if (!nl_freqs) {
12248 nla_nest_cancel(msg, nl_match);
12249 goto out;
12250 }
12251
12252 for (j = 0; j < match->n_channels; j++) {
12253 if (nla_put_u32(msg,
12254 NL80211_ATTR_WIPHY_FREQ,
12255 match->channels[j])) {
12256 nla_nest_cancel(msg, nl_freqs);
12257 nla_nest_cancel(msg, nl_match);
12258 goto out;
12259 }
12260 }
12261
12262 nla_nest_end(msg, nl_freqs);
12263 }
12264
12265 nla_nest_end(msg, nl_match);
12266 }
12267
12268out:
12269 nla_nest_end(msg, nl_results);
12270 return 0;
12271}
12272
cd8f7cb4
JB		 12273void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12274 struct cfg80211_wowlan_wakeup *wakeup,
12275 gfp_t gfp)
12276{
f26cbf40 12277 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12278 struct sk_buff *msg;
12279 void *hdr;
9c90a9f6 12280 int size = 200;
cd8f7cb4
JB		 12281
12282 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12283
12284 if (wakeup)
12285 size += wakeup->packet_present_len;
12286
12287 msg = nlmsg_new(size, gfp);
12288 if (!msg)
12289 return;
12290
12291 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12292 if (!hdr)
12293 goto free_msg;
12294
12295 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12296 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12297 goto free_msg;
12298
12299 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12300 wdev->netdev->ifindex))
12301 goto free_msg;
12302
12303 if (wakeup) {
12304 struct nlattr *reasons;
12305
12306 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12307 if (!reasons)
12308 goto free_msg;
cd8f7cb4
JB		 12309
12310 if (wakeup->disconnect &&
12311 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12312 goto free_msg;
12313 if (wakeup->magic_pkt &&
12314 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12315 goto free_msg;
12316 if (wakeup->gtk_rekey_failure &&
12317 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12318 goto free_msg;
12319 if (wakeup->eap_identity_req &&
12320 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12321 goto free_msg;
12322 if (wakeup->four_way_handshake &&
12323 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12324 goto free_msg;
12325 if (wakeup->rfkill_release &&
12326 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12327 goto free_msg;
12328
12329 if (wakeup->pattern_idx >= 0 &&
12330 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12331 wakeup->pattern_idx))
12332 goto free_msg;
12333
ae917c9f
JB		 12334 if (wakeup->tcp_match &&
12335 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12336 goto free_msg;
2a0e047e 12337
ae917c9f
JB		 12338 if (wakeup->tcp_connlost &&
12339 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12340 goto free_msg;
2a0e047e 12341
ae917c9f
JB		 12342 if (wakeup->tcp_nomoretokens &&
12343 nla_put_flag(msg,
12344 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12345 goto free_msg;
2a0e047e 12346
cd8f7cb4
JB		 12347 if (wakeup->packet) {
12348 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12349 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12350
12351 if (!wakeup->packet_80211) {
12352 pkt_attr =
12353 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12354 len_attr =
12355 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12356 }
12357
12358 if (wakeup->packet_len &&
12359 nla_put_u32(msg, len_attr, wakeup->packet_len))
12360 goto free_msg;
12361
12362 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12363 wakeup->packet))
12364 goto free_msg;
12365 }
12366
8cd4d456
LC		 12367 if (wakeup->net_detect &&
12368 cfg80211_net_detect_results(msg, wakeup))
12369 goto free_msg;
12370
cd8f7cb4
JB		 12371 nla_nest_end(msg, reasons);
12372 }
12373
9c90a9f6 12374 genlmsg_end(msg, hdr);
cd8f7cb4 12375
68eb5503 12376 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12377 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12378 return;
12379
12380 free_msg:
12381 nlmsg_free(msg);
12382}
12383EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12384#endif
12385
3475b094
JM		 12386void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12387 enum nl80211_tdls_operation oper,
12388 u16 reason_code, gfp_t gfp)
12389{
12390 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12391 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12392 struct sk_buff *msg;
12393 void *hdr;
3475b094
JM		 12394
12395 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12396 reason_code);
12397
12398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12399 if (!msg)
12400 return;
12401
12402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12403 if (!hdr) {
12404 nlmsg_free(msg);
12405 return;
12406 }
12407
12408 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12409 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12410 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12411 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12412 (reason_code > 0 &&
12413 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12414 goto nla_put_failure;
12415
9c90a9f6 12416 genlmsg_end(msg, hdr);
3475b094 12417
68eb5503 12418 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12419 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12420 return;
12421
12422 nla_put_failure:
12423 genlmsg_cancel(msg, hdr);
12424 nlmsg_free(msg);
12425}
12426EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12427
026331c4
JM		 12428static int nl80211_netlink_notify(struct notifier_block * nb,
12429 unsigned long state,
12430 void *_notify)
12431{
12432 struct netlink_notify *notify = _notify;
12433 struct cfg80211_registered_device *rdev;
12434 struct wireless_dev *wdev;
37c73b5f 12435 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12436
12437 if (state != NETLINK_URELEASE)
12438 return NOTIFY_DONE;
12439
12440 rcu_read_lock();
12441
5e760230 12442 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 12443 bool schedule_destroy_work = false;
12444
12445 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12446 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12447
78f22b6a
JB		 12448 if (wdev->owner_nlportid == notify->portid)
12449 schedule_destroy_work = true;
12450 }
12451
37c73b5f
BG		 12452 spin_lock_bh(&rdev->beacon_registrations_lock);
12453 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12454 list) {
12455 if (reg->nlportid == notify->portid) {
12456 list_del(&reg->list);
12457 kfree(reg);
12458 break;
12459 }
12460 }
12461 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12462
12463 if (schedule_destroy_work) {
12464 struct cfg80211_iface_destroy *destroy;
12465
12466 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12467 if (destroy) {
12468 destroy->nlportid = notify->portid;
12469 spin_lock(&rdev->destroy_list_lock);
12470 list_add(&destroy->list, &rdev->destroy_list);
12471 spin_unlock(&rdev->destroy_list_lock);
12472 schedule_work(&rdev->destroy_work);
12473 }
12474 }
5e760230 12475 }
026331c4
JM		 12476
12477 rcu_read_unlock();
12478
6784c7db 12479 return NOTIFY_OK;
026331c4
JM		 12480}
12481
12482static struct notifier_block nl80211_netlink_notifier = {
12483 .notifier_call = nl80211_netlink_notify,
12484};
12485
355199e0
JM		 12486void cfg80211_ft_event(struct net_device *netdev,
12487 struct cfg80211_ft_event_params *ft_event)
12488{
12489 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12490 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12491 struct sk_buff *msg;
12492 void *hdr;
355199e0
JM		 12493
12494 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12495
12496 if (!ft_event->target_ap)
12497 return;
12498
12499 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12500 if (!msg)
12501 return;
12502
12503 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12504 if (!hdr)
12505 goto out;
355199e0 12506
ae917c9f
JB		 12507 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12508 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12509 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12510 goto out;
355199e0 12511
ae917c9f
JB		 12512 if (ft_event->ies &&
12513 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12514 goto out;
12515 if (ft_event->ric_ies &&
12516 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12517 ft_event->ric_ies))
12518 goto out;
355199e0 12519
9c90a9f6 12520 genlmsg_end(msg, hdr);
355199e0 12521
68eb5503 12522 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12523 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12524 return;
12525 out:
12526 nlmsg_free(msg);
355199e0
JM		 12527}
12528EXPORT_SYMBOL(cfg80211_ft_event);
12529
5de17984
AS		 12530void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12531{
12532 struct cfg80211_registered_device *rdev;
12533 struct sk_buff *msg;
12534 void *hdr;
12535 u32 nlportid;
12536
f26cbf40 12537 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12538 if (!rdev->crit_proto_nlportid)
12539 return;
12540
12541 nlportid = rdev->crit_proto_nlportid;
12542 rdev->crit_proto_nlportid = 0;
12543
12544 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12545 if (!msg)
12546 return;
12547
12548 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12549 if (!hdr)
12550 goto nla_put_failure;
12551
12552 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12553 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12554 goto nla_put_failure;
12555
12556 genlmsg_end(msg, hdr);
12557
12558 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12559 return;
12560
12561 nla_put_failure:
12562 if (hdr)
12563 genlmsg_cancel(msg, hdr);
12564 nlmsg_free(msg);
12565
12566}
12567EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12568
348baf0e
JB		 12569void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12570{
12571 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12572 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12573 struct sk_buff *msg;
12574 void *hdr;
12575
12576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12577 if (!msg)
12578 return;
12579
12580 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12581 if (!hdr)
12582 goto out;
12583
12584 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12585 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12586 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12587 goto out;
12588
12589 genlmsg_end(msg, hdr);
12590
12591 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12592 NL80211_MCGRP_MLME, GFP_KERNEL);
12593 return;
12594 out:
12595 nlmsg_free(msg);
12596}
12597
55682965
JB		 12598/* initialisation/exit functions */
12599
12600int nl80211_init(void)
12601{
0d63cbb5 12602 int err;
55682965 12603
2a94fe48
JB		 12604 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12605 nl80211_mcgrps);
55682965
JB		 12606 if (err)
12607 return err;
12608
026331c4
JM		 12609 err = netlink_register_notifier(&nl80211_netlink_notifier);
12610 if (err)
12611 goto err_out;
12612
55682965
JB		 12613 return 0;
12614 err_out:
12615 genl_unregister_family(&nl80211_fam);
12616 return err;
12617}
12618
12619void nl80211_exit(void)
12620{
026331c4 12621 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12622 genl_unregister_family(&nl80211_fam);
12623}
ubuntu-bionic-kernel mirror