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mac80211: fix ieee80211_sta_process_chanswitch for 5/10 MHz channels
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
4c476991
JB		 33static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
89a54e48
JB		 50/* returns ERR_PTR values */
51static struct wireless_dev *
52__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 53{
89a54e48
JB		 54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
58 u64 wdev_id;
59 int wiphy_idx = -1;
60 int ifidx = -1;
55682965 61
5fe231e8 62 ASSERT_RTNL();
55682965 63
89a54e48
JB		 64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
55682965 66
89a54e48
JB		 67 if (have_ifidx)
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 if (have_wdev_id) {
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
55682965
JB		 72 }
73
89a54e48
JB		 74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
76
77 if (wiphy_net(&rdev->wiphy) != netns)
78 continue;
79
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
81 continue;
82
89a54e48
JB		 83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
89a54e48
JB		 94
95 if (result)
96 break;
97 }
98
99 if (result)
100 return result;
101 return ERR_PTR(-ENODEV);
55682965
JB		 102}
103
a9455408 104static struct cfg80211_registered_device *
878d9ec7 105__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 106{
7fee4778
JB		 107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
a9455408 109
5fe231e8 110 ASSERT_RTNL();
a9455408 111
878d9ec7 112 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 115 return ERR_PTR(-EINVAL);
116
878d9ec7 117 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 118 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 120
89a54e48
JB		 121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
124 bool found = false;
125
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
127 if (tmp) {
128 /* make sure wdev exists */
89a54e48
JB		 129 list_for_each_entry(wdev, &tmp->wdev_list, list) {
130 if (wdev->identifier != (u32)wdev_id)
131 continue;
132 found = true;
133 break;
134 }
89a54e48
JB		 135
136 if (!found)
137 tmp = NULL;
138
139 if (rdev && tmp != rdev)
140 return ERR_PTR(-EINVAL);
141 rdev = tmp;
142 }
143 }
144
878d9ec7
JB		 145 if (attrs[NL80211_ATTR_IFINDEX]) {
146 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 147 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 148 if (netdev) {
149 if (netdev->ieee80211_ptr)
150 tmp = wiphy_to_dev(
151 netdev->ieee80211_ptr->wiphy);
152 else
153 tmp = NULL;
154
155 dev_put(netdev);
156
157 /* not wireless device -- return error */
158 if (!tmp)
159 return ERR_PTR(-EINVAL);
160
161 /* mismatch -- return error */
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164
165 rdev = tmp;
a9455408 166 }
a9455408 167 }
a9455408 168
4f7eff10
JB		 169 if (!rdev)
170 return ERR_PTR(-ENODEV);
a9455408 171
4f7eff10
JB		 172 if (netns != wiphy_net(&rdev->wiphy))
173 return ERR_PTR(-ENODEV);
174
175 return rdev;
a9455408
JB		 176}
177
178/*
179 * This function returns a pointer to the driver
180 * that the genl_info item that is passed refers to.
a9455408
JB		 181 *
182 * The result of this can be a PTR_ERR and hence must
183 * be checked with IS_ERR() for errors.
184 */
185static struct cfg80211_registered_device *
4f7eff10 186cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 187{
5fe231e8 188 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 189}
190
55682965 191/* policy for the attributes */
b54452b0 192static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 193 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
194 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 195 .len = 20-1 },
31888487 196 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 197
72bdcf34 198 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 199 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 200 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
201 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
202 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
203
b9a5f8ca
JM		 204 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
205 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
206 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
207 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 208 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 209
210 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
212 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 213
e007b857
EP		 214 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
215 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 216
b9454e83 217 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 218 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
219 .len = WLAN_MAX_KEY_LEN },
220 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
221 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
222 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 223 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 224 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 225
226 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
227 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
228 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
229 .len = IEEE80211_MAX_DATA_LEN },
230 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 232 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
233 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
234 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
235 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
236 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 237 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 238 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 239 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 240 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 241 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 242 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 243
b2e1b302
LR		 244 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
245 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
246
9f1ba906
JM		 247 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
248 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
249 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 250 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
251 .len = NL80211_MAX_SUPP_RATES },
50b12f59 252 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 253
24bdd9f4 254 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 255 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 256
6c739419 257 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 258
259 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
260 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 262 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
263 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 264
265 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
266 .len = IEEE80211_MAX_SSID_LEN },
267 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
268 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 269 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 270 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 271 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 272 [NL80211_ATTR_STA_FLAGS2] = {
273 .len = sizeof(struct nl80211_sta_flag_update),
274 },
3f77316c 275 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 276 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
277 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 278 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
279 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
280 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 281 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 282 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 283 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
284 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 285 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
286 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 287 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 288 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_DATA_LEN },
290 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 291 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 292 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 293 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 294 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 295 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
296 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 297 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 298 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
299 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 300 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 301 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 302 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 303 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 304 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 305 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 306 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 307 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 308 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 309 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 313 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 314 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 315 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 316 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
317 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
318 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
319 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
320 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 321 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 322 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 324 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 325 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
327 .len = NL80211_HT_CAPABILITY_LEN
328 },
1d9d9213 329 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 330 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 331 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 332 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 333 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 334 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 335 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 336 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 337 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
338 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 339 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
340 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 341 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
342 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 343 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 344 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
346 .len = NL80211_VHT_CAPABILITY_LEN,
347 },
355199e0
JM		 348 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
349 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 351 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 352 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
353 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
354 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
355 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
356 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
55682965
JB		 357};
358
e31b8213 359/* policy for the key attributes */
b54452b0 360static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 361 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 362 [NL80211_KEY_IDX] = { .type = NLA_U8 },
363 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 364 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 365 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
366 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 367 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 368 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
369};
370
371/* policy for the key default flags */
372static const struct nla_policy
373nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
374 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
375 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 376};
377
ff1b6e69
JB		 378/* policy for WoWLAN attributes */
379static const struct nla_policy
380nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
381 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
382 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
384 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 385 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
386 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
388 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 389 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
390};
391
392static const struct nla_policy
393nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
394 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
395 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
396 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
397 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
398 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
399 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
400 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
401 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
402 },
403 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
404 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
405 },
406 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
407 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
408 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 409};
410
be29b99a
AK		 411/* policy for coalesce rule attributes */
412static const struct nla_policy
413nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
414 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
415 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
416 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
417};
418
e5497d76
JB		 419/* policy for GTK rekey offload attributes */
420static const struct nla_policy
421nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
422 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
423 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
424 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
425};
426
a1f1c21c
LC		 427static const struct nla_policy
428nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 429 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 430 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 431 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 432};
433
97990a06
JB		 434static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
435 struct netlink_callback *cb,
436 struct cfg80211_registered_device **rdev,
437 struct wireless_dev **wdev)
a043897a 438{
97990a06 439 int err;
a043897a 440
97990a06 441 rtnl_lock();
a043897a 442
97990a06
JB		 443 if (!cb->args[0]) {
444 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
445 nl80211_fam.attrbuf, nl80211_fam.maxattr,
446 nl80211_policy);
447 if (err)
448 goto out_unlock;
67748893 449
97990a06
JB		 450 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
451 nl80211_fam.attrbuf);
452 if (IS_ERR(*wdev)) {
453 err = PTR_ERR(*wdev);
454 goto out_unlock;
455 }
456 *rdev = wiphy_to_dev((*wdev)->wiphy);
457 cb->args[0] = (*rdev)->wiphy_idx;
458 cb->args[1] = (*wdev)->identifier;
459 } else {
460 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
461 struct wireless_dev *tmp;
67748893 462
97990a06
JB		 463 if (!wiphy) {
464 err = -ENODEV;
465 goto out_unlock;
466 }
467 *rdev = wiphy_to_dev(wiphy);
468 *wdev = NULL;
67748893 469
97990a06
JB		 470 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
471 if (tmp->identifier == cb->args[1]) {
472 *wdev = tmp;
473 break;
474 }
475 }
67748893 476
97990a06
JB		 477 if (!*wdev) {
478 err = -ENODEV;
479 goto out_unlock;
480 }
67748893
JB		 481 }
482
67748893 483 return 0;
97990a06 484 out_unlock:
67748893
JB		 485 rtnl_unlock();
486 return err;
487}
488
97990a06 489static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 490{
67748893
JB		 491 rtnl_unlock();
492}
493
f4a11bb0
JB		 494/* IE validation */
495static bool is_valid_ie_attr(const struct nlattr *attr)
496{
497 const u8 *pos;
498 int len;
499
500 if (!attr)
501 return true;
502
503 pos = nla_data(attr);
504 len = nla_len(attr);
505
506 while (len) {
507 u8 elemlen;
508
509 if (len < 2)
510 return false;
511 len -= 2;
512
513 elemlen = pos[1];
514 if (elemlen > len)
515 return false;
516
517 len -= elemlen;
518 pos += 2 + elemlen;
519 }
520
521 return true;
522}
523
55682965 524/* message building helper */
15e47304 525static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 526 int flags, u8 cmd)
527{
528 /* since there is no private header just add the generic one */
15e47304 529 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 530}
531
5dab3b8a 532static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 533 struct ieee80211_channel *chan,
534 bool large)
5dab3b8a 535{
9360ffd1
DM		 536 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
537 chan->center_freq))
538 goto nla_put_failure;
5dab3b8a 539
9360ffd1
DM		 540 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
541 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
542 goto nla_put_failure;
543 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
544 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
545 goto nla_put_failure;
546 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
547 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
548 goto nla_put_failure;
cdc89b97
JB		 549 if (chan->flags & IEEE80211_CHAN_RADAR) {
550 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
551 goto nla_put_failure;
552 if (large) {
553 u32 time;
554
555 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
556
557 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
558 chan->dfs_state))
559 goto nla_put_failure;
560 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
561 time))
562 goto nla_put_failure;
563 }
564 }
5dab3b8a 565
fe1abafd
JB		 566 if (large) {
567 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
568 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
569 goto nla_put_failure;
570 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
571 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
572 goto nla_put_failure;
573 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
574 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
575 goto nla_put_failure;
576 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
577 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
578 goto nla_put_failure;
579 }
580
9360ffd1
DM		 581 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
582 DBM_TO_MBM(chan->max_power)))
583 goto nla_put_failure;
5dab3b8a
LR		 584
585 return 0;
586
587 nla_put_failure:
588 return -ENOBUFS;
589}
590
55682965
JB		 591/* netlink command implementations */
592
b9454e83
JB		 593struct key_parse {
594 struct key_params p;
595 int idx;
e31b8213 596 int type;
b9454e83 597 bool def, defmgmt;
dbd2fd65 598 bool def_uni, def_multi;
b9454e83
JB		 599};
600
601static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
602{
603 struct nlattr *tb[NL80211_KEY_MAX + 1];
604 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
605 nl80211_key_policy);
606 if (err)
607 return err;
608
609 k->def = !!tb[NL80211_KEY_DEFAULT];
610 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
611
dbd2fd65
JB		 612 if (k->def) {
613 k->def_uni = true;
614 k->def_multi = true;
615 }
616 if (k->defmgmt)
617 k->def_multi = true;
618
b9454e83
JB		 619 if (tb[NL80211_KEY_IDX])
620 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
621
622 if (tb[NL80211_KEY_DATA]) {
623 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
624 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
625 }
626
627 if (tb[NL80211_KEY_SEQ]) {
628 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
629 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
630 }
631
632 if (tb[NL80211_KEY_CIPHER])
633 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
634
e31b8213
JB		 635 if (tb[NL80211_KEY_TYPE]) {
636 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
637 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
638 return -EINVAL;
639 }
640
dbd2fd65
JB		 641 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
642 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 643 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
644 tb[NL80211_KEY_DEFAULT_TYPES],
645 nl80211_key_default_policy);
dbd2fd65
JB		 646 if (err)
647 return err;
648
649 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
650 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
651 }
652
b9454e83
JB		 653 return 0;
654}
655
656static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
657{
658 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
659 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
660 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
661 }
662
663 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
664 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
665 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
666 }
667
668 if (info->attrs[NL80211_ATTR_KEY_IDX])
669 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
670
671 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
672 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
673
674 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
675 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
676
dbd2fd65
JB		 677 if (k->def) {
678 k->def_uni = true;
679 k->def_multi = true;
680 }
681 if (k->defmgmt)
682 k->def_multi = true;
683
e31b8213
JB		 684 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
685 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
686 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
687 return -EINVAL;
688 }
689
dbd2fd65
JB		 690 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
691 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
692 int err = nla_parse_nested(
693 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
694 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
695 nl80211_key_default_policy);
696 if (err)
697 return err;
698
699 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
700 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
701 }
702
b9454e83
JB		 703 return 0;
704}
705
706static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
707{
708 int err;
709
710 memset(k, 0, sizeof(*k));
711 k->idx = -1;
e31b8213 712 k->type = -1;
b9454e83
JB		 713
714 if (info->attrs[NL80211_ATTR_KEY])
715 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
716 else
717 err = nl80211_parse_key_old(info, k);
718
719 if (err)
720 return err;
721
722 if (k->def && k->defmgmt)
723 return -EINVAL;
724
dbd2fd65
JB		 725 if (k->defmgmt) {
726 if (k->def_uni || !k->def_multi)
727 return -EINVAL;
728 }
729
b9454e83
JB		 730 if (k->idx != -1) {
731 if (k->defmgmt) {
732 if (k->idx < 4 || k->idx > 5)
733 return -EINVAL;
734 } else if (k->def) {
735 if (k->idx < 0 || k->idx > 3)
736 return -EINVAL;
737 } else {
738 if (k->idx < 0 || k->idx > 5)
739 return -EINVAL;
740 }
741 }
742
743 return 0;
744}
745
fffd0934
JB		 746static struct cfg80211_cached_keys *
747nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 748 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 749{
750 struct key_parse parse;
751 struct nlattr *key;
752 struct cfg80211_cached_keys *result;
753 int rem, err, def = 0;
754
755 result = kzalloc(sizeof(*result), GFP_KERNEL);
756 if (!result)
757 return ERR_PTR(-ENOMEM);
758
759 result->def = -1;
760 result->defmgmt = -1;
761
762 nla_for_each_nested(key, keys, rem) {
763 memset(&parse, 0, sizeof(parse));
764 parse.idx = -1;
765
766 err = nl80211_parse_key_new(key, &parse);
767 if (err)
768 goto error;
769 err = -EINVAL;
770 if (!parse.p.key)
771 goto error;
772 if (parse.idx < 0 || parse.idx > 4)
773 goto error;
774 if (parse.def) {
775 if (def)
776 goto error;
777 def = 1;
778 result->def = parse.idx;
dbd2fd65
JB		 779 if (!parse.def_uni || !parse.def_multi)
780 goto error;
fffd0934
JB		 781 } else if (parse.defmgmt)
782 goto error;
783 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 784 parse.idx, false, NULL);
fffd0934
JB		 785 if (err)
786 goto error;
787 result->params[parse.idx].cipher = parse.p.cipher;
788 result->params[parse.idx].key_len = parse.p.key_len;
789 result->params[parse.idx].key = result->data[parse.idx];
790 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 791
792 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
793 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
794 if (no_ht)
795 *no_ht = true;
796 }
fffd0934
JB		 797 }
798
799 return result;
800 error:
801 kfree(result);
802 return ERR_PTR(err);
803}
804
805static int nl80211_key_allowed(struct wireless_dev *wdev)
806{
807 ASSERT_WDEV_LOCK(wdev);
808
fffd0934
JB		 809 switch (wdev->iftype) {
810 case NL80211_IFTYPE_AP:
811 case NL80211_IFTYPE_AP_VLAN:
074ac8df 812 case NL80211_IFTYPE_P2P_GO:
ff973af7 813 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 814 break;
815 case NL80211_IFTYPE_ADHOC:
fffd0934 816 case NL80211_IFTYPE_STATION:
074ac8df 817 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 818 if (!wdev->current_bss)
fffd0934
JB		 819 return -ENOLINK;
820 break;
821 default:
822 return -EINVAL;
823 }
824
825 return 0;
826}
827
7527a782
JB		 828static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
829{
830 struct nlattr *nl_modes = nla_nest_start(msg, attr);
831 int i;
832
833 if (!nl_modes)
834 goto nla_put_failure;
835
836 i = 0;
837 while (ifmodes) {
9360ffd1
DM		 838 if ((ifmodes & 1) && nla_put_flag(msg, i))
839 goto nla_put_failure;
7527a782
JB		 840 ifmodes >>= 1;
841 i++;
842 }
843
844 nla_nest_end(msg, nl_modes);
845 return 0;
846
847nla_put_failure:
848 return -ENOBUFS;
849}
850
851static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 852 struct sk_buff *msg,
853 bool large)
7527a782
JB		 854{
855 struct nlattr *nl_combis;
856 int i, j;
857
858 nl_combis = nla_nest_start(msg,
859 NL80211_ATTR_INTERFACE_COMBINATIONS);
860 if (!nl_combis)
861 goto nla_put_failure;
862
863 for (i = 0; i < wiphy->n_iface_combinations; i++) {
864 const struct ieee80211_iface_combination *c;
865 struct nlattr *nl_combi, *nl_limits;
866
867 c = &wiphy->iface_combinations[i];
868
869 nl_combi = nla_nest_start(msg, i + 1);
870 if (!nl_combi)
871 goto nla_put_failure;
872
873 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
874 if (!nl_limits)
875 goto nla_put_failure;
876
877 for (j = 0; j < c->n_limits; j++) {
878 struct nlattr *nl_limit;
879
880 nl_limit = nla_nest_start(msg, j + 1);
881 if (!nl_limit)
882 goto nla_put_failure;
9360ffd1
DM		 883 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
884 c->limits[j].max))
885 goto nla_put_failure;
7527a782
JB		 886 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
887 c->limits[j].types))
888 goto nla_put_failure;
889 nla_nest_end(msg, nl_limit);
890 }
891
892 nla_nest_end(msg, nl_limits);
893
9360ffd1
DM		 894 if (c->beacon_int_infra_match &&
895 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
896 goto nla_put_failure;
897 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
898 c->num_different_channels) ||
899 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
900 c->max_interfaces))
901 goto nla_put_failure;
cdc89b97
JB		 902 if (large &&
903 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
904 c->radar_detect_widths))
905 goto nla_put_failure;
7527a782
JB		 906
907 nla_nest_end(msg, nl_combi);
908 }
909
910 nla_nest_end(msg, nl_combis);
911
912 return 0;
913nla_put_failure:
914 return -ENOBUFS;
915}
916
3713b4e3 917#ifdef CONFIG_PM
b56cf720
JB		 918static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
919 struct sk_buff *msg)
920{
964dc9e2 921 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 922 struct nlattr *nl_tcp;
923
924 if (!tcp)
925 return 0;
926
927 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
928 if (!nl_tcp)
929 return -ENOBUFS;
930
931 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
932 tcp->data_payload_max))
933 return -ENOBUFS;
934
935 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
936 tcp->data_payload_max))
937 return -ENOBUFS;
938
939 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
940 return -ENOBUFS;
941
942 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
943 sizeof(*tcp->tok), tcp->tok))
944 return -ENOBUFS;
945
946 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
947 tcp->data_interval_max))
948 return -ENOBUFS;
949
950 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
951 tcp->wake_payload_max))
952 return -ENOBUFS;
953
954 nla_nest_end(msg, nl_tcp);
955 return 0;
956}
957
3713b4e3 958static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 959 struct cfg80211_registered_device *dev,
960 bool large)
55682965 961{
3713b4e3 962 struct nlattr *nl_wowlan;
55682965 963
964dc9e2 964 if (!dev->wiphy.wowlan)
3713b4e3 965 return 0;
55682965 966
3713b4e3
JB		 967 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
968 if (!nl_wowlan)
969 return -ENOBUFS;
9360ffd1 970
964dc9e2 971 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 972 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 973 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 974 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 975 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 976 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 977 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 978 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 979 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 980 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 981 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 982 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 983 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 984 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 985 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 986 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
987 return -ENOBUFS;
9360ffd1 988
964dc9e2 989 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 990 struct nl80211_pattern_support pat = {
964dc9e2
JB		 991 .max_patterns = dev->wiphy.wowlan->n_patterns,
992 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
993 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
994 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 995 };
9360ffd1 996
3713b4e3
JB		 997 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
998 sizeof(pat), &pat))
999 return -ENOBUFS;
1000 }
9360ffd1 1001
b56cf720
JB		 1002 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1003 return -ENOBUFS;
1004
3713b4e3 1005 nla_nest_end(msg, nl_wowlan);
9360ffd1 1006
3713b4e3
JB		 1007 return 0;
1008}
1009#endif
9360ffd1 1010
be29b99a
AK		 1011static int nl80211_send_coalesce(struct sk_buff *msg,
1012 struct cfg80211_registered_device *dev)
1013{
1014 struct nl80211_coalesce_rule_support rule;
1015
1016 if (!dev->wiphy.coalesce)
1017 return 0;
1018
1019 rule.max_rules = dev->wiphy.coalesce->n_rules;
1020 rule.max_delay = dev->wiphy.coalesce->max_delay;
1021 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1022 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1023 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1024 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1025
1026 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1027 return -ENOBUFS;
1028
1029 return 0;
1030}
1031
3713b4e3
JB		 1032static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1033 struct ieee80211_supported_band *sband)
1034{
1035 struct nlattr *nl_rates, *nl_rate;
1036 struct ieee80211_rate *rate;
1037 int i;
87bbbe22 1038
3713b4e3
JB		 1039 /* add HT info */
1040 if (sband->ht_cap.ht_supported &&
1041 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1042 sizeof(sband->ht_cap.mcs),
1043 &sband->ht_cap.mcs) ||
1044 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1045 sband->ht_cap.cap) ||
1046 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1047 sband->ht_cap.ampdu_factor) ||
1048 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1049 sband->ht_cap.ampdu_density)))
1050 return -ENOBUFS;
afe0cbf8 1051
3713b4e3
JB		 1052 /* add VHT info */
1053 if (sband->vht_cap.vht_supported &&
1054 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1055 sizeof(sband->vht_cap.vht_mcs),
1056 &sband->vht_cap.vht_mcs) ||
1057 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1058 sband->vht_cap.cap)))
1059 return -ENOBUFS;
f59ac048 1060
3713b4e3
JB		 1061 /* add bitrates */
1062 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1063 if (!nl_rates)
1064 return -ENOBUFS;
ee688b00 1065
3713b4e3
JB		 1066 for (i = 0; i < sband->n_bitrates; i++) {
1067 nl_rate = nla_nest_start(msg, i);
1068 if (!nl_rate)
1069 return -ENOBUFS;
ee688b00 1070
3713b4e3
JB		 1071 rate = &sband->bitrates[i];
1072 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1073 rate->bitrate))
1074 return -ENOBUFS;
1075 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1076 nla_put_flag(msg,
1077 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1078 return -ENOBUFS;
ee688b00 1079
3713b4e3
JB		 1080 nla_nest_end(msg, nl_rate);
1081 }
d51626df 1082
3713b4e3 1083 nla_nest_end(msg, nl_rates);
bf0c111e 1084
3713b4e3
JB		 1085 return 0;
1086}
ee688b00 1087
3713b4e3
JB		 1088static int
1089nl80211_send_mgmt_stypes(struct sk_buff *msg,
1090 const struct ieee80211_txrx_stypes *mgmt_stypes)
1091{
1092 u16 stypes;
1093 struct nlattr *nl_ftypes, *nl_ifs;
1094 enum nl80211_iftype ift;
1095 int i;
ee688b00 1096
3713b4e3
JB		 1097 if (!mgmt_stypes)
1098 return 0;
5dab3b8a 1099
3713b4e3
JB		 1100 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1101 if (!nl_ifs)
1102 return -ENOBUFS;
e2f367f2 1103
3713b4e3
JB		 1104 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1105 nl_ftypes = nla_nest_start(msg, ift);
1106 if (!nl_ftypes)
1107 return -ENOBUFS;
1108 i = 0;
1109 stypes = mgmt_stypes[ift].tx;
1110 while (stypes) {
1111 if ((stypes & 1) &&
1112 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1113 (i << 4) | IEEE80211_FTYPE_MGMT))
1114 return -ENOBUFS;
1115 stypes >>= 1;
1116 i++;
ee688b00 1117 }
3713b4e3
JB		 1118 nla_nest_end(msg, nl_ftypes);
1119 }
ee688b00 1120
3713b4e3 1121 nla_nest_end(msg, nl_ifs);
ee688b00 1122
3713b4e3
JB		 1123 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1124 if (!nl_ifs)
1125 return -ENOBUFS;
ee688b00 1126
3713b4e3
JB		 1127 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1128 nl_ftypes = nla_nest_start(msg, ift);
1129 if (!nl_ftypes)
1130 return -ENOBUFS;
1131 i = 0;
1132 stypes = mgmt_stypes[ift].rx;
1133 while (stypes) {
1134 if ((stypes & 1) &&
1135 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1136 (i << 4) | IEEE80211_FTYPE_MGMT))
1137 return -ENOBUFS;
1138 stypes >>= 1;
1139 i++;
1140 }
1141 nla_nest_end(msg, nl_ftypes);
1142 }
1143 nla_nest_end(msg, nl_ifs);
ee688b00 1144
3713b4e3
JB		 1145 return 0;
1146}
ee688b00 1147
86e8cf98
JB		 1148struct nl80211_dump_wiphy_state {
1149 s64 filter_wiphy;
1150 long start;
1151 long split_start, band_start, chan_start;
1152 bool split;
1153};
1154
3713b4e3
JB		 1155static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1156 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1157 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1158{
1159 void *hdr;
1160 struct nlattr *nl_bands, *nl_band;
1161 struct nlattr *nl_freqs, *nl_freq;
1162 struct nlattr *nl_cmds;
1163 enum ieee80211_band band;
1164 struct ieee80211_channel *chan;
1165 int i;
1166 const struct ieee80211_txrx_stypes *mgmt_stypes =
1167 dev->wiphy.mgmt_stypes;
fe1abafd 1168 u32 features;
ee688b00 1169
3713b4e3
JB		 1170 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1171 if (!hdr)
1172 return -ENOBUFS;
ee688b00 1173
86e8cf98
JB		 1174 if (WARN_ON(!state))
1175 return -EINVAL;
ee688b00 1176
3713b4e3
JB		 1177 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1178 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1179 wiphy_name(&dev->wiphy)) ||
1180 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1181 cfg80211_rdev_list_generation))
8fdc621d
JB		 1182 goto nla_put_failure;
1183
86e8cf98 1184 switch (state->split_start) {
3713b4e3
JB		 1185 case 0:
1186 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1187 dev->wiphy.retry_short) ||
1188 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1189 dev->wiphy.retry_long) ||
1190 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1191 dev->wiphy.frag_threshold) ||
1192 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1193 dev->wiphy.rts_threshold) ||
1194 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1195 dev->wiphy.coverage_class) ||
1196 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1197 dev->wiphy.max_scan_ssids) ||
1198 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1199 dev->wiphy.max_sched_scan_ssids) ||
1200 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1201 dev->wiphy.max_scan_ie_len) ||
1202 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1203 dev->wiphy.max_sched_scan_ie_len) ||
1204 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1205 dev->wiphy.max_match_sets))
9360ffd1 1206 goto nla_put_failure;
3713b4e3
JB		 1207
1208 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1209 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1210 goto nla_put_failure;
3713b4e3
JB		 1211 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1212 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1213 goto nla_put_failure;
1214 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1215 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1216 goto nla_put_failure;
1217 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1218 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1219 goto nla_put_failure;
1220 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1221 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1222 goto nla_put_failure;
1223 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1224 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1225 goto nla_put_failure;
2f301ab2
SW		 1226 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1227 nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1228 goto nla_put_failure;
8fdc621d 1229
86e8cf98
JB		 1230 state->split_start++;
1231 if (state->split)
3713b4e3
JB		 1232 break;
1233 case 1:
1234 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1235 sizeof(u32) * dev->wiphy.n_cipher_suites,
1236 dev->wiphy.cipher_suites))
1237 goto nla_put_failure;
4745fc09 1238
3713b4e3
JB		 1239 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1240 dev->wiphy.max_num_pmkids))
1241 goto nla_put_failure;
b23aa676 1242
3713b4e3
JB		 1243 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1244 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1245 goto nla_put_failure;
b23aa676 1246
3713b4e3
JB		 1247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1248 dev->wiphy.available_antennas_tx) ||
1249 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1250 dev->wiphy.available_antennas_rx))
9360ffd1 1251 goto nla_put_failure;
b23aa676 1252
3713b4e3
JB		 1253 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1254 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1255 dev->wiphy.probe_resp_offload))
1256 goto nla_put_failure;
8fdc621d 1257
3713b4e3
JB		 1258 if ((dev->wiphy.available_antennas_tx ||
1259 dev->wiphy.available_antennas_rx) &&
1260 dev->ops->get_antenna) {
1261 u32 tx_ant = 0, rx_ant = 0;
1262 int res;
1263 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1264 if (!res) {
1265 if (nla_put_u32(msg,
1266 NL80211_ATTR_WIPHY_ANTENNA_TX,
1267 tx_ant) ||
1268 nla_put_u32(msg,
1269 NL80211_ATTR_WIPHY_ANTENNA_RX,
1270 rx_ant))
1271 goto nla_put_failure;
1272 }
1273 }
a293911d 1274
86e8cf98
JB		 1275 state->split_start++;
1276 if (state->split)
3713b4e3
JB		 1277 break;
1278 case 2:
1279 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1280 dev->wiphy.interface_modes))
1281 goto nla_put_failure;
86e8cf98
JB		 1282 state->split_start++;
1283 if (state->split)
3713b4e3
JB		 1284 break;
1285 case 3:
1286 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1287 if (!nl_bands)
1288 goto nla_put_failure;
f7ca38df 1289
86e8cf98
JB		 1290 for (band = state->band_start;
1291 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1292 struct ieee80211_supported_band *sband;
2e161f78 1293
3713b4e3 1294 sband = dev->wiphy.bands[band];
2e161f78 1295
3713b4e3
JB		 1296 if (!sband)
1297 continue;
1298
1299 nl_band = nla_nest_start(msg, band);
1300 if (!nl_band)
2e161f78 1301 goto nla_put_failure;
3713b4e3 1302
86e8cf98 1303 switch (state->chan_start) {
3713b4e3
JB		 1304 case 0:
1305 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1306 goto nla_put_failure;
86e8cf98
JB		 1307 state->chan_start++;
1308 if (state->split)
3713b4e3
JB		 1309 break;
1310 default:
1311 /* add frequencies */
1312 nl_freqs = nla_nest_start(
1313 msg, NL80211_BAND_ATTR_FREQS);
1314 if (!nl_freqs)
1315 goto nla_put_failure;
1316
86e8cf98 1317 for (i = state->chan_start - 1;
3713b4e3
JB		 1318 i < sband->n_channels;
1319 i++) {
1320 nl_freq = nla_nest_start(msg, i);
1321 if (!nl_freq)
1322 goto nla_put_failure;
1323
1324 chan = &sband->channels[i];
1325
86e8cf98
JB		 1326 if (nl80211_msg_put_channel(
1327 msg, chan,
1328 state->split))
3713b4e3
JB		 1329 goto nla_put_failure;
1330
1331 nla_nest_end(msg, nl_freq);
86e8cf98 1332 if (state->split)
3713b4e3
JB		 1333 break;
1334 }
1335 if (i < sband->n_channels)
86e8cf98 1336 state->chan_start = i + 2;
3713b4e3 1337 else
86e8cf98 1338 state->chan_start = 0;
3713b4e3
JB		 1339 nla_nest_end(msg, nl_freqs);
1340 }
1341
1342 nla_nest_end(msg, nl_band);
1343
86e8cf98 1344 if (state->split) {
3713b4e3 1345 /* start again here */
86e8cf98 1346 if (state->chan_start)
3713b4e3
JB		 1347 band--;
1348 break;
2e161f78 1349 }
2e161f78 1350 }
3713b4e3 1351 nla_nest_end(msg, nl_bands);
2e161f78 1352
3713b4e3 1353 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1354 state->band_start = band + 1;
3713b4e3 1355 else
86e8cf98 1356 state->band_start = 0;
74b70a4e 1357
3713b4e3 1358 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1359 if (state->band_start == 0 && state->chan_start == 0)
1360 state->split_start++;
1361 if (state->split)
3713b4e3
JB		 1362 break;
1363 case 4:
1364 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1365 if (!nl_cmds)
2e161f78
JB		 1366 goto nla_put_failure;
1367
3713b4e3
JB		 1368 i = 0;
1369#define CMD(op, n) \
1370 do { \
1371 if (dev->ops->op) { \
1372 i++; \
1373 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1374 goto nla_put_failure; \
1375 } \
1376 } while (0)
1377
1378 CMD(add_virtual_intf, NEW_INTERFACE);
1379 CMD(change_virtual_intf, SET_INTERFACE);
1380 CMD(add_key, NEW_KEY);
1381 CMD(start_ap, START_AP);
1382 CMD(add_station, NEW_STATION);
1383 CMD(add_mpath, NEW_MPATH);
1384 CMD(update_mesh_config, SET_MESH_CONFIG);
1385 CMD(change_bss, SET_BSS);
1386 CMD(auth, AUTHENTICATE);
1387 CMD(assoc, ASSOCIATE);
1388 CMD(deauth, DEAUTHENTICATE);
1389 CMD(disassoc, DISASSOCIATE);
1390 CMD(join_ibss, JOIN_IBSS);
1391 CMD(join_mesh, JOIN_MESH);
1392 CMD(set_pmksa, SET_PMKSA);
1393 CMD(del_pmksa, DEL_PMKSA);
1394 CMD(flush_pmksa, FLUSH_PMKSA);
1395 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1396 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1397 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1398 CMD(mgmt_tx, FRAME);
1399 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1400 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1401 i++;
1402 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1403 goto nla_put_failure;
2e161f78 1404 }
3713b4e3
JB		 1405 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1406 dev->ops->join_mesh) {
1407 i++;
1408 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1409 goto nla_put_failure;
1410 }
1411 CMD(set_wds_peer, SET_WDS_PEER);
1412 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1413 CMD(tdls_mgmt, TDLS_MGMT);
1414 CMD(tdls_oper, TDLS_OPER);
1415 }
1416 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1417 CMD(sched_scan_start, START_SCHED_SCAN);
1418 CMD(probe_client, PROBE_CLIENT);
1419 CMD(set_noack_map, SET_NOACK_MAP);
1420 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1421 i++;
1422 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1423 goto nla_put_failure;
1424 }
1425 CMD(start_p2p_device, START_P2P_DEVICE);
1426 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1427 if (state->split) {
5de17984
AS		 1428 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1429 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
16ef1fe2
SW		 1430 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1431 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1432 }
2e161f78 1433
3713b4e3
JB		 1434#ifdef CONFIG_NL80211_TESTMODE
1435 CMD(testmode_cmd, TESTMODE);
1436#endif
ff1b6e69 1437
3713b4e3 1438#undef CMD
ff1b6e69 1439
3713b4e3
JB		 1440 if (dev->ops->connect || dev->ops->auth) {
1441 i++;
1442 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1443 goto nla_put_failure;
ff1b6e69
JB		 1444 }
1445
3713b4e3
JB		 1446 if (dev->ops->disconnect || dev->ops->deauth) {
1447 i++;
1448 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1449 goto nla_put_failure;
1450 }
1451
1452 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1453 state->split_start++;
1454 if (state->split)
3713b4e3
JB		 1455 break;
1456 case 5:
1457 if (dev->ops->remain_on_channel &&
1458 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1459 nla_put_u32(msg,
1460 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1461 dev->wiphy.max_remain_on_channel_duration))
1462 goto nla_put_failure;
1463
1464 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1465 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1466 goto nla_put_failure;
1467
1468 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1469 goto nla_put_failure;
86e8cf98
JB		 1470 state->split_start++;
1471 if (state->split)
3713b4e3
JB		 1472 break;
1473 case 6:
1474#ifdef CONFIG_PM
86e8cf98 1475 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1476 goto nla_put_failure;
86e8cf98
JB		 1477 state->split_start++;
1478 if (state->split)
3713b4e3
JB		 1479 break;
1480#else
86e8cf98 1481 state->split_start++;
dfb89c56 1482#endif
3713b4e3
JB		 1483 case 7:
1484 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1485 dev->wiphy.software_iftypes))
1486 goto nla_put_failure;
ff1b6e69 1487
86e8cf98
JB		 1488 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1489 state->split))
3713b4e3 1490 goto nla_put_failure;
7527a782 1491
86e8cf98
JB		 1492 state->split_start++;
1493 if (state->split)
3713b4e3
JB		 1494 break;
1495 case 8:
1496 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1497 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1498 dev->wiphy.ap_sme_capa))
1499 goto nla_put_failure;
7527a782 1500
fe1abafd
JB		 1501 features = dev->wiphy.features;
1502 /*
1503 * We can only add the per-channel limit information if the
1504 * dump is split, otherwise it makes it too big. Therefore
1505 * only advertise it in that case.
1506 */
86e8cf98 1507 if (state->split)
fe1abafd
JB		 1508 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1509 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1510 goto nla_put_failure;
562a7480 1511
3713b4e3
JB		 1512 if (dev->wiphy.ht_capa_mod_mask &&
1513 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1514 sizeof(*dev->wiphy.ht_capa_mod_mask),
1515 dev->wiphy.ht_capa_mod_mask))
1516 goto nla_put_failure;
1f074bd8 1517
3713b4e3
JB		 1518 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1519 dev->wiphy.max_acl_mac_addrs &&
1520 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1521 dev->wiphy.max_acl_mac_addrs))
1522 goto nla_put_failure;
7e7c8926 1523
3713b4e3
JB		 1524 /*
1525 * Any information below this point is only available to
1526 * applications that can deal with it being split. This
1527 * helps ensure that newly added capabilities don't break
1528 * older tools by overrunning their buffers.
1529 *
1530 * We still increment split_start so that in the split
1531 * case we'll continue with more data in the next round,
1532 * but break unconditionally so unsplit data stops here.
1533 */
86e8cf98 1534 state->split_start++;
3713b4e3
JB		 1535 break;
1536 case 9:
fe1abafd
JB		 1537 if (dev->wiphy.extended_capabilities &&
1538 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1539 dev->wiphy.extended_capabilities_len,
1540 dev->wiphy.extended_capabilities) ||
1541 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1542 dev->wiphy.extended_capabilities_len,
1543 dev->wiphy.extended_capabilities_mask)))
1544 goto nla_put_failure;
a50df0c4 1545
ee2aca34
JB		 1546 if (dev->wiphy.vht_capa_mod_mask &&
1547 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1548 sizeof(*dev->wiphy.vht_capa_mod_mask),
1549 dev->wiphy.vht_capa_mod_mask))
1550 goto nla_put_failure;
1551
be29b99a
AK		 1552 state->split_start++;
1553 break;
1554 case 10:
1555 if (nl80211_send_coalesce(msg, dev))
1556 goto nla_put_failure;
1557
3713b4e3 1558 /* done */
86e8cf98 1559 state->split_start = 0;
3713b4e3
JB		 1560 break;
1561 }
55682965
JB		 1562 return genlmsg_end(msg, hdr);
1563
1564 nla_put_failure:
bc3ed28c
TG		 1565 genlmsg_cancel(msg, hdr);
1566 return -EMSGSIZE;
55682965
JB		 1567}
1568
86e8cf98
JB		 1569static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1570 struct netlink_callback *cb,
1571 struct nl80211_dump_wiphy_state *state)
1572{
1573 struct nlattr **tb = nl80211_fam.attrbuf;
1574 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1575 tb, nl80211_fam.maxattr, nl80211_policy);
1576 /* ignore parse errors for backward compatibility */
1577 if (ret)
1578 return 0;
1579
1580 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1581 if (tb[NL80211_ATTR_WIPHY])
1582 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1583 if (tb[NL80211_ATTR_WDEV])
1584 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1585 if (tb[NL80211_ATTR_IFINDEX]) {
1586 struct net_device *netdev;
1587 struct cfg80211_registered_device *rdev;
1588 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1589
1590 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1591 if (!netdev)
1592 return -ENODEV;
1593 if (netdev->ieee80211_ptr) {
1594 rdev = wiphy_to_dev(
1595 netdev->ieee80211_ptr->wiphy);
1596 state->filter_wiphy = rdev->wiphy_idx;
1597 }
1598 dev_put(netdev);
1599 }
1600
1601 return 0;
1602}
1603
55682965
JB		 1604static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1605{
645e77de 1606 int idx = 0, ret;
86e8cf98 1607 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1608 struct cfg80211_registered_device *dev;
3a5a423b 1609
5fe231e8 1610 rtnl_lock();
86e8cf98
JB		 1611 if (!state) {
1612 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1613 if (!state) {
1614 rtnl_unlock();
86e8cf98 1615 return -ENOMEM;
3713b4e3 1616 }
86e8cf98
JB		 1617 state->filter_wiphy = -1;
1618 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1619 if (ret) {
1620 kfree(state);
1621 rtnl_unlock();
1622 return ret;
3713b4e3 1623 }
86e8cf98 1624 cb->args[0] = (long)state;
3713b4e3
JB		 1625 }
1626
79c97e97 1627 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1628 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1629 continue;
86e8cf98 1630 if (++idx <= state->start)
55682965 1631 continue;
86e8cf98
JB		 1632 if (state->filter_wiphy != -1 &&
1633 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1634 continue;
1635 /* attempt to fit multiple wiphy data chunks into the skb */
1636 do {
1637 ret = nl80211_send_wiphy(dev, skb,
1638 NETLINK_CB(cb->skb).portid,
1639 cb->nlh->nlmsg_seq,
86e8cf98 1640 NLM_F_MULTI, state);
3713b4e3
JB		 1641 if (ret < 0) {
1642 /*
1643 * If sending the wiphy data didn't fit (ENOBUFS
1644 * or EMSGSIZE returned), this SKB is still
1645 * empty (so it's not too big because another
1646 * wiphy dataset is already in the skb) and
1647 * we've not tried to adjust the dump allocation
1648 * yet ... then adjust the alloc size to be
1649 * bigger, and return 1 but with the empty skb.
1650 * This results in an empty message being RX'ed
1651 * in userspace, but that is ignored.
1652 *
1653 * We can then retry with the larger buffer.
1654 */
1655 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1656 !skb->len &&
1657 cb->min_dump_alloc < 4096) {
1658 cb->min_dump_alloc = 4096;
d98cae64 1659 rtnl_unlock();
3713b4e3
JB		 1660 return 1;
1661 }
1662 idx--;
1663 break;
645e77de 1664 }
86e8cf98 1665 } while (state->split_start > 0);
3713b4e3 1666 break;
55682965 1667 }
5fe231e8 1668 rtnl_unlock();
55682965 1669
86e8cf98 1670 state->start = idx;
55682965
JB		 1671
1672 return skb->len;
1673}
1674
86e8cf98
JB		 1675static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1676{
1677 kfree((void *)cb->args[0]);
1678 return 0;
1679}
1680
55682965
JB		 1681static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1682{
1683 struct sk_buff *msg;
4c476991 1684 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1685 struct nl80211_dump_wiphy_state state = {};
55682965 1686
645e77de 1687 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1688 if (!msg)
4c476991 1689 return -ENOMEM;
55682965 1690
3713b4e3 1691 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1692 &state) < 0) {
4c476991
JB		 1693 nlmsg_free(msg);
1694 return -ENOBUFS;
1695 }
55682965 1696
134e6375 1697 return genlmsg_reply(msg, info);
55682965
JB		 1698}
1699
31888487
JM		 1700static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1701 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1702 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1703 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1704 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1705 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1706};
1707
1708static int parse_txq_params(struct nlattr *tb[],
1709 struct ieee80211_txq_params *txq_params)
1710{
a3304b0a 1711 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1712 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1713 !tb[NL80211_TXQ_ATTR_AIFS])
1714 return -EINVAL;
1715
a3304b0a 1716 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1717 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1718 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1719 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1720 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1721
a3304b0a
JB		 1722 if (txq_params->ac >= NL80211_NUM_ACS)
1723 return -EINVAL;
1724
31888487
JM		 1725 return 0;
1726}
1727
f444de05
JB		 1728static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1729{
1730 /*
cc1d2806
JB		 1731 * You can only set the channel explicitly for WDS interfaces,
1732 * all others have their channel managed via their respective
1733 * "establish a connection" command (connect, join, ...)
1734 *
1735 * For AP/GO and mesh mode, the channel can be set with the
1736 * channel userspace API, but is only stored and passed to the
1737 * low-level driver when the AP starts or the mesh is joined.
1738 * This is for backward compatibility, userspace can also give
1739 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1740 *
1741 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1742 * whatever else is going on, so they have their own special
1743 * operation to set the monitor channel if possible.
f444de05
JB		 1744 */
1745 return !wdev ||
1746 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1747 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1748 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1749 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1750}
1751
683b6d3b
JB		 1752static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1753 struct genl_info *info,
1754 struct cfg80211_chan_def *chandef)
1755{
dbeca2ea 1756 u32 control_freq;
683b6d3b
JB		 1757
1758 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1759 return -EINVAL;
1760
1761 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1762
1763 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1764 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1765 chandef->center_freq1 = control_freq;
1766 chandef->center_freq2 = 0;
683b6d3b
JB		 1767
1768 /* Primary channel not allowed */
1769 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1770 return -EINVAL;
1771
3d9d1d66
JB		 1772 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1773 enum nl80211_channel_type chantype;
1774
1775 chantype = nla_get_u32(
1776 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1777
1778 switch (chantype) {
1779 case NL80211_CHAN_NO_HT:
1780 case NL80211_CHAN_HT20:
1781 case NL80211_CHAN_HT40PLUS:
1782 case NL80211_CHAN_HT40MINUS:
1783 cfg80211_chandef_create(chandef, chandef->chan,
1784 chantype);
1785 break;
1786 default:
1787 return -EINVAL;
1788 }
1789 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1790 chandef->width =
1791 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1792 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1793 chandef->center_freq1 =
1794 nla_get_u32(
1795 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1796 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1797 chandef->center_freq2 =
1798 nla_get_u32(
1799 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1800 }
1801
9f5e8f6e 1802 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1803 return -EINVAL;
1804
9f5e8f6e
JB		 1805 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1806 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1807 return -EINVAL;
1808
2f301ab2
SW		 1809 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1810 chandef->width == NL80211_CHAN_WIDTH_10) &&
1811 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1812 return -EINVAL;
1813
683b6d3b
JB		 1814 return 0;
1815}
1816
f444de05
JB		 1817static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1818 struct wireless_dev *wdev,
1819 struct genl_info *info)
1820{
683b6d3b 1821 struct cfg80211_chan_def chandef;
f444de05 1822 int result;
e8c9bd5b
JB		 1823 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1824
1825 if (wdev)
1826 iftype = wdev->iftype;
f444de05 1827
f444de05
JB		 1828 if (!nl80211_can_set_dev_channel(wdev))
1829 return -EOPNOTSUPP;
1830
683b6d3b
JB		 1831 result = nl80211_parse_chandef(rdev, info, &chandef);
1832 if (result)
1833 return result;
f444de05 1834
e8c9bd5b 1835 switch (iftype) {
aa430da4
JB		 1836 case NL80211_IFTYPE_AP:
1837 case NL80211_IFTYPE_P2P_GO:
1838 if (wdev->beacon_interval) {
1839 result = -EBUSY;
1840 break;
1841 }
683b6d3b 1842 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1843 result = -EINVAL;
1844 break;
1845 }
683b6d3b 1846 wdev->preset_chandef = chandef;
aa430da4
JB		 1847 result = 0;
1848 break;
cc1d2806 1849 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1850 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1851 break;
e8c9bd5b 1852 case NL80211_IFTYPE_MONITOR:
683b6d3b 1853 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1854 break;
aa430da4 1855 default:
e8c9bd5b 1856 result = -EINVAL;
f444de05 1857 }
f444de05
JB		 1858
1859 return result;
1860}
1861
1862static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1863{
4c476991
JB		 1864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1865 struct net_device *netdev = info->user_ptr[1];
f444de05 1866
4c476991 1867 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1868}
1869
e8347eba
BJ		 1870static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1871{
43b19952
JB		 1872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1873 struct net_device *dev = info->user_ptr[1];
1874 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1875 const u8 *bssid;
e8347eba
BJ		 1876
1877 if (!info->attrs[NL80211_ATTR_MAC])
1878 return -EINVAL;
1879
43b19952
JB		 1880 if (netif_running(dev))
1881 return -EBUSY;
e8347eba 1882
43b19952
JB		 1883 if (!rdev->ops->set_wds_peer)
1884 return -EOPNOTSUPP;
e8347eba 1885
43b19952
JB		 1886 if (wdev->iftype != NL80211_IFTYPE_WDS)
1887 return -EOPNOTSUPP;
e8347eba
BJ		 1888
1889 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1890 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1891}
1892
1893
55682965
JB		 1894static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1895{
1896 struct cfg80211_registered_device *rdev;
f444de05
JB		 1897 struct net_device *netdev = NULL;
1898 struct wireless_dev *wdev;
a1e567c8 1899 int result = 0, rem_txq_params = 0;
31888487 1900 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1901 u32 changed;
1902 u8 retry_short = 0, retry_long = 0;
1903 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1904 u8 coverage_class = 0;
55682965 1905
5fe231e8
JB		 1906 ASSERT_RTNL();
1907
f444de05
JB		 1908 /*
1909 * Try to find the wiphy and netdev. Normally this
1910 * function shouldn't need the netdev, but this is
1911 * done for backward compatibility -- previously
1912 * setting the channel was done per wiphy, but now
1913 * it is per netdev. Previous userland like hostapd
1914 * also passed a netdev to set_wiphy, so that it is
1915 * possible to let that go to the right netdev!
1916 */
4bbf4d56 1917
f444de05
JB		 1918 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1919 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1920
1921 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1922 if (netdev && netdev->ieee80211_ptr)
f444de05 1923 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1924 else
f444de05 1925 netdev = NULL;
4bbf4d56
JB		 1926 }
1927
f444de05 1928 if (!netdev) {
878d9ec7
JB		 1929 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1930 info->attrs);
5fe231e8 1931 if (IS_ERR(rdev))
4c476991 1932 return PTR_ERR(rdev);
f444de05
JB		 1933 wdev = NULL;
1934 netdev = NULL;
1935 result = 0;
71fe96bf 1936 } else
f444de05 1937 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1938
1939 /*
1940 * end workaround code, by now the rdev is available
1941 * and locked, and wdev may or may not be NULL.
1942 */
4bbf4d56
JB		 1943
1944 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1945 result = cfg80211_dev_rename(
1946 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1947
4bbf4d56
JB		 1948 if (result)
1949 goto bad_res;
31888487
JM		 1950
1951 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1952 struct ieee80211_txq_params txq_params;
1953 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1954
1955 if (!rdev->ops->set_txq_params) {
1956 result = -EOPNOTSUPP;
1957 goto bad_res;
1958 }
1959
f70f01c2
EP		 1960 if (!netdev) {
1961 result = -EINVAL;
1962 goto bad_res;
1963 }
1964
133a3ff2
JB		 1965 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1966 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1967 result = -EINVAL;
1968 goto bad_res;
1969 }
1970
2b5f8b0b
JB		 1971 if (!netif_running(netdev)) {
1972 result = -ENETDOWN;
1973 goto bad_res;
1974 }
1975
31888487
JM		 1976 nla_for_each_nested(nl_txq_params,
1977 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1978 rem_txq_params) {
1979 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1980 nla_data(nl_txq_params),
1981 nla_len(nl_txq_params),
1982 txq_params_policy);
1983 result = parse_txq_params(tb, &txq_params);
1984 if (result)
1985 goto bad_res;
1986
e35e4d28
HG		 1987 result = rdev_set_txq_params(rdev, netdev,
1988 &txq_params);
31888487
JM		 1989 if (result)
1990 goto bad_res;
1991 }
1992 }
55682965 1993
72bdcf34 1994 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1995 result = __nl80211_set_channel(rdev,
1996 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1997 info);
72bdcf34
JM		 1998 if (result)
1999 goto bad_res;
2000 }
2001
98d2ff8b 2002 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2003 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2004 enum nl80211_tx_power_setting type;
2005 int idx, mbm = 0;
2006
c8442118
JB		 2007 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2008 txp_wdev = NULL;
2009
98d2ff8b 2010 if (!rdev->ops->set_tx_power) {
60ea385f 2011 result = -EOPNOTSUPP;
98d2ff8b
JO		 2012 goto bad_res;
2013 }
2014
2015 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2016 type = nla_get_u32(info->attrs[idx]);
2017
2018 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2019 (type != NL80211_TX_POWER_AUTOMATIC)) {
2020 result = -EINVAL;
2021 goto bad_res;
2022 }
2023
2024 if (type != NL80211_TX_POWER_AUTOMATIC) {
2025 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2026 mbm = nla_get_u32(info->attrs[idx]);
2027 }
2028
c8442118 2029 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 2030 if (result)
2031 goto bad_res;
2032 }
2033
afe0cbf8
BR		 2034 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2035 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2036 u32 tx_ant, rx_ant;
7f531e03
BR		 2037 if ((!rdev->wiphy.available_antennas_tx &&
2038 !rdev->wiphy.available_antennas_rx) ||
2039 !rdev->ops->set_antenna) {
afe0cbf8
BR		 2040 result = -EOPNOTSUPP;
2041 goto bad_res;
2042 }
2043
2044 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2045 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2046
a7ffac95 2047 /* reject antenna configurations which don't match the
7f531e03
BR		 2048 * available antenna masks, except for the "all" mask */
2049 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2050 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2051 result = -EINVAL;
2052 goto bad_res;
2053 }
2054
7f531e03
BR		 2055 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2056 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2057
e35e4d28 2058 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2059 if (result)
2060 goto bad_res;
2061 }
2062
b9a5f8ca
JM		 2063 changed = 0;
2064
2065 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2066 retry_short = nla_get_u8(
2067 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2068 if (retry_short == 0) {
2069 result = -EINVAL;
2070 goto bad_res;
2071 }
2072 changed |= WIPHY_PARAM_RETRY_SHORT;
2073 }
2074
2075 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2076 retry_long = nla_get_u8(
2077 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2078 if (retry_long == 0) {
2079 result = -EINVAL;
2080 goto bad_res;
2081 }
2082 changed |= WIPHY_PARAM_RETRY_LONG;
2083 }
2084
2085 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2086 frag_threshold = nla_get_u32(
2087 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2088 if (frag_threshold < 256) {
2089 result = -EINVAL;
2090 goto bad_res;
2091 }
2092 if (frag_threshold != (u32) -1) {
2093 /*
2094 * Fragments (apart from the last one) are required to
2095 * have even length. Make the fragmentation code
2096 * simpler by stripping LSB should someone try to use
2097 * odd threshold value.
2098 */
2099 frag_threshold &= ~0x1;
2100 }
2101 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2102 }
2103
2104 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2105 rts_threshold = nla_get_u32(
2106 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2107 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2108 }
2109
81077e82
LT		 2110 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2111 coverage_class = nla_get_u8(
2112 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2113 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2114 }
2115
b9a5f8ca
JM		 2116 if (changed) {
2117 u8 old_retry_short, old_retry_long;
2118 u32 old_frag_threshold, old_rts_threshold;
81077e82 2119 u8 old_coverage_class;
b9a5f8ca
JM		 2120
2121 if (!rdev->ops->set_wiphy_params) {
2122 result = -EOPNOTSUPP;
2123 goto bad_res;
2124 }
2125
2126 old_retry_short = rdev->wiphy.retry_short;
2127 old_retry_long = rdev->wiphy.retry_long;
2128 old_frag_threshold = rdev->wiphy.frag_threshold;
2129 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2130 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2131
2132 if (changed & WIPHY_PARAM_RETRY_SHORT)
2133 rdev->wiphy.retry_short = retry_short;
2134 if (changed & WIPHY_PARAM_RETRY_LONG)
2135 rdev->wiphy.retry_long = retry_long;
2136 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2137 rdev->wiphy.frag_threshold = frag_threshold;
2138 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2139 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2140 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2141 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2142
e35e4d28 2143 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2144 if (result) {
2145 rdev->wiphy.retry_short = old_retry_short;
2146 rdev->wiphy.retry_long = old_retry_long;
2147 rdev->wiphy.frag_threshold = old_frag_threshold;
2148 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2149 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2150 }
2151 }
72bdcf34 2152
306d6112 2153 bad_res:
f444de05
JB		 2154 if (netdev)
2155 dev_put(netdev);
55682965
JB		 2156 return result;
2157}
2158
71bbc994
JB		 2159static inline u64 wdev_id(struct wireless_dev *wdev)
2160{
2161 return (u64)wdev->identifier |
2162 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2163}
55682965 2164
683b6d3b
JB		 2165static int nl80211_send_chandef(struct sk_buff *msg,
2166 struct cfg80211_chan_def *chandef)
2167{
9f5e8f6e 2168 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2169
683b6d3b
JB		 2170 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2171 chandef->chan->center_freq))
2172 return -ENOBUFS;
3d9d1d66
JB		 2173 switch (chandef->width) {
2174 case NL80211_CHAN_WIDTH_20_NOHT:
2175 case NL80211_CHAN_WIDTH_20:
2176 case NL80211_CHAN_WIDTH_40:
2177 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2178 cfg80211_get_chandef_type(chandef)))
2179 return -ENOBUFS;
2180 break;
2181 default:
2182 break;
2183 }
2184 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2185 return -ENOBUFS;
2186 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2187 return -ENOBUFS;
2188 if (chandef->center_freq2 &&
2189 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2190 return -ENOBUFS;
2191 return 0;
2192}
2193
15e47304 2194static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2195 struct cfg80211_registered_device *rdev,
72fb2abc 2196 struct wireless_dev *wdev)
55682965 2197{
72fb2abc 2198 struct net_device *dev = wdev->netdev;
55682965
JB		 2199 void *hdr;
2200
15e47304 2201 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2202 if (!hdr)
2203 return -1;
2204
72fb2abc
JB		 2205 if (dev &&
2206 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2207 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2208 goto nla_put_failure;
2209
2210 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2211 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2212 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2213 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2214 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2215 rdev->devlist_generation ^
2216 (cfg80211_rdev_list_generation << 2)))
2217 goto nla_put_failure;
f5ea9120 2218
5b7ccaf3 2219 if (rdev->ops->get_channel) {
683b6d3b
JB		 2220 int ret;
2221 struct cfg80211_chan_def chandef;
2222
2223 ret = rdev_get_channel(rdev, wdev, &chandef);
2224 if (ret == 0) {
2225 if (nl80211_send_chandef(msg, &chandef))
2226 goto nla_put_failure;
2227 }
d91df0e3
PF		 2228 }
2229
b84e7a05
AQ		 2230 if (wdev->ssid_len) {
2231 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2232 goto nla_put_failure;
2233 }
2234
55682965
JB		 2235 return genlmsg_end(msg, hdr);
2236
2237 nla_put_failure:
bc3ed28c
TG		 2238 genlmsg_cancel(msg, hdr);
2239 return -EMSGSIZE;
55682965
JB		 2240}
2241
2242static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2243{
2244 int wp_idx = 0;
2245 int if_idx = 0;
2246 int wp_start = cb->args[0];
2247 int if_start = cb->args[1];
f5ea9120 2248 struct cfg80211_registered_device *rdev;
55682965
JB		 2249 struct wireless_dev *wdev;
2250
5fe231e8 2251 rtnl_lock();
f5ea9120
JB		 2252 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2253 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2254 continue;
bba95fef
JB		 2255 if (wp_idx < wp_start) {
2256 wp_idx++;
55682965 2257 continue;
bba95fef 2258 }
55682965
JB		 2259 if_idx = 0;
2260
89a54e48 2261 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2262 if (if_idx < if_start) {
2263 if_idx++;
55682965 2264 continue;
bba95fef 2265 }
15e47304 2266 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2267 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2268 rdev, wdev) < 0) {
bba95fef
JB		 2269 goto out;
2270 }
2271 if_idx++;
55682965 2272 }
bba95fef
JB		 2273
2274 wp_idx++;
55682965 2275 }
bba95fef 2276 out:
5fe231e8 2277 rtnl_unlock();
55682965
JB		 2278
2279 cb->args[0] = wp_idx;
2280 cb->args[1] = if_idx;
2281
2282 return skb->len;
2283}
2284
2285static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2286{
2287 struct sk_buff *msg;
4c476991 2288 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2289 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2290
fd2120ca 2291 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2292 if (!msg)
4c476991 2293 return -ENOMEM;
55682965 2294
15e47304 2295 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2296 dev, wdev) < 0) {
4c476991
JB		 2297 nlmsg_free(msg);
2298 return -ENOBUFS;
2299 }
55682965 2300
134e6375 2301 return genlmsg_reply(msg, info);
55682965
JB		 2302}
2303
66f7ac50
MW		 2304static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2305 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2306 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2307 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2308 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2309 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2310 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2311};
2312
2313static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2314{
2315 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2316 int flag;
2317
2318 *mntrflags = 0;
2319
2320 if (!nla)
2321 return -EINVAL;
2322
2323 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2324 nla, mntr_flags_policy))
2325 return -EINVAL;
2326
2327 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2328 if (flags[flag])
2329 *mntrflags |= (1<<flag);
2330
2331 return 0;
2332}
2333
9bc383de 2334static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2335 struct net_device *netdev, u8 use_4addr,
2336 enum nl80211_iftype iftype)
9bc383de 2337{
ad4bb6f8 2338 if (!use_4addr) {
f350a0a8 2339 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2340 return -EBUSY;
9bc383de 2341 return 0;
ad4bb6f8 2342 }
9bc383de
JB		 2343
2344 switch (iftype) {
2345 case NL80211_IFTYPE_AP_VLAN:
2346 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2347 return 0;
2348 break;
2349 case NL80211_IFTYPE_STATION:
2350 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2351 return 0;
2352 break;
2353 default:
2354 break;
2355 }
2356
2357 return -EOPNOTSUPP;
2358}
2359
55682965
JB		 2360static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2361{
4c476991 2362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2363 struct vif_params params;
e36d56b6 2364 int err;
04a773ad 2365 enum nl80211_iftype otype, ntype;
4c476991 2366 struct net_device *dev = info->user_ptr[1];
92ffe055 2367 u32 _flags, *flags = NULL;
ac7f9cfa 2368 bool change = false;
55682965 2369
2ec600d6
LCC		 2370 memset(&params, 0, sizeof(params));
2371
04a773ad 2372 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2373
723b038d 2374 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2375 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2376 if (otype != ntype)
ac7f9cfa 2377 change = true;
4c476991
JB		 2378 if (ntype > NL80211_IFTYPE_MAX)
2379 return -EINVAL;
723b038d
JB		 2380 }
2381
92ffe055 2382 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2383 struct wireless_dev *wdev = dev->ieee80211_ptr;
2384
4c476991
JB		 2385 if (ntype != NL80211_IFTYPE_MESH_POINT)
2386 return -EINVAL;
29cbe68c
JB		 2387 if (netif_running(dev))
2388 return -EBUSY;
2389
2390 wdev_lock(wdev);
2391 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2392 IEEE80211_MAX_MESH_ID_LEN);
2393 wdev->mesh_id_up_len =
2394 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2395 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2396 wdev->mesh_id_up_len);
2397 wdev_unlock(wdev);
2ec600d6
LCC		 2398 }
2399
8b787643
FF		 2400 if (info->attrs[NL80211_ATTR_4ADDR]) {
2401 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2402 change = true;
ad4bb6f8 2403 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2404 if (err)
4c476991 2405 return err;
8b787643
FF		 2406 } else {
2407 params.use_4addr = -1;
2408 }
2409
92ffe055 2410 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2411 if (ntype != NL80211_IFTYPE_MONITOR)
2412 return -EINVAL;
92ffe055
JB		 2413 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2414 &_flags);
ac7f9cfa 2415 if (err)
4c476991 2416 return err;
ac7f9cfa
JB		 2417
2418 flags = &_flags;
2419 change = true;
92ffe055 2420 }
3b85875a 2421
e057d3c3
FF		 2422 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2423 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2424 return -EOPNOTSUPP;
2425
ac7f9cfa 2426 if (change)
3d54d255 2427 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2428 else
2429 err = 0;
60719ffd 2430
9bc383de
JB		 2431 if (!err && params.use_4addr != -1)
2432 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2433
55682965
JB		 2434 return err;
2435}
2436
2437static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2438{
4c476991 2439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2440 struct vif_params params;
84efbb84 2441 struct wireless_dev *wdev;
1c90f9d4 2442 struct sk_buff *msg;
55682965
JB		 2443 int err;
2444 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2445 u32 flags;
55682965 2446
2ec600d6
LCC		 2447 memset(&params, 0, sizeof(params));
2448
55682965
JB		 2449 if (!info->attrs[NL80211_ATTR_IFNAME])
2450 return -EINVAL;
2451
2452 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2453 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2454 if (type > NL80211_IFTYPE_MAX)
2455 return -EINVAL;
2456 }
2457
79c97e97 2458 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2459 !(rdev->wiphy.interface_modes & (1 << type)))
2460 return -EOPNOTSUPP;
55682965 2461
1c18f145
AS		 2462 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2463 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2464 ETH_ALEN);
2465 if (!is_valid_ether_addr(params.macaddr))
2466 return -EADDRNOTAVAIL;
2467 }
2468
9bc383de 2469 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2470 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2471 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2472 if (err)
4c476991 2473 return err;
9bc383de 2474 }
8b787643 2475
1c90f9d4
JB		 2476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2477 if (!msg)
2478 return -ENOMEM;
2479
66f7ac50
MW		 2480 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2481 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2482 &flags);
e057d3c3
FF		 2483
2484 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2485 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2486 return -EOPNOTSUPP;
2487
e35e4d28
HG		 2488 wdev = rdev_add_virtual_intf(rdev,
2489 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2490 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2491 if (IS_ERR(wdev)) {
2492 nlmsg_free(msg);
84efbb84 2493 return PTR_ERR(wdev);
1c90f9d4 2494 }
2ec600d6 2495
98104fde
JB		 2496 switch (type) {
2497 case NL80211_IFTYPE_MESH_POINT:
2498 if (!info->attrs[NL80211_ATTR_MESH_ID])
2499 break;
29cbe68c
JB		 2500 wdev_lock(wdev);
2501 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2502 IEEE80211_MAX_MESH_ID_LEN);
2503 wdev->mesh_id_up_len =
2504 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2505 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2506 wdev->mesh_id_up_len);
2507 wdev_unlock(wdev);
98104fde
JB		 2508 break;
2509 case NL80211_IFTYPE_P2P_DEVICE:
2510 /*
2511 * P2P Device doesn't have a netdev, so doesn't go
2512 * through the netdev notifier and must be added here
2513 */
2514 mutex_init(&wdev->mtx);
2515 INIT_LIST_HEAD(&wdev->event_list);
2516 spin_lock_init(&wdev->event_lock);
2517 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2518 spin_lock_init(&wdev->mgmt_registrations_lock);
2519
98104fde
JB		 2520 wdev->identifier = ++rdev->wdev_id;
2521 list_add_rcu(&wdev->list, &rdev->wdev_list);
2522 rdev->devlist_generation++;
98104fde
JB		 2523 break;
2524 default:
2525 break;
29cbe68c
JB		 2526 }
2527
15e47304 2528 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2529 rdev, wdev) < 0) {
2530 nlmsg_free(msg);
2531 return -ENOBUFS;
2532 }
2533
2534 return genlmsg_reply(msg, info);
55682965
JB		 2535}
2536
2537static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2538{
4c476991 2539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2540 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2541
4c476991
JB		 2542 if (!rdev->ops->del_virtual_intf)
2543 return -EOPNOTSUPP;
55682965 2544
84efbb84
JB		 2545 /*
2546 * If we remove a wireless device without a netdev then clear
2547 * user_ptr[1] so that nl80211_post_doit won't dereference it
2548 * to check if it needs to do dev_put(). Otherwise it crashes
2549 * since the wdev has been freed, unlike with a netdev where
2550 * we need the dev_put() for the netdev to really be freed.
2551 */
2552 if (!wdev->netdev)
2553 info->user_ptr[1] = NULL;
2554
e35e4d28 2555 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2556}
2557
1d9d9213
SW		 2558static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2559{
2560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2561 struct net_device *dev = info->user_ptr[1];
2562 u16 noack_map;
2563
2564 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2565 return -EINVAL;
2566
2567 if (!rdev->ops->set_noack_map)
2568 return -EOPNOTSUPP;
2569
2570 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2571
e35e4d28 2572 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2573}
2574
41ade00f
JB		 2575struct get_key_cookie {
2576 struct sk_buff *msg;
2577 int error;
b9454e83 2578 int idx;
41ade00f
JB		 2579};
2580
2581static void get_key_callback(void *c, struct key_params *params)
2582{
b9454e83 2583 struct nlattr *key;
41ade00f
JB		 2584 struct get_key_cookie *cookie = c;
2585
9360ffd1
DM		 2586 if ((params->key &&
2587 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2588 params->key_len, params->key)) ||
2589 (params->seq &&
2590 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2591 params->seq_len, params->seq)) ||
2592 (params->cipher &&
2593 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2594 params->cipher)))
2595 goto nla_put_failure;
41ade00f 2596
b9454e83
JB		 2597 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2598 if (!key)
2599 goto nla_put_failure;
2600
9360ffd1
DM		 2601 if ((params->key &&
2602 nla_put(cookie->msg, NL80211_KEY_DATA,
2603 params->key_len, params->key)) ||
2604 (params->seq &&
2605 nla_put(cookie->msg, NL80211_KEY_SEQ,
2606 params->seq_len, params->seq)) ||
2607 (params->cipher &&
2608 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2609 params->cipher)))
2610 goto nla_put_failure;
b9454e83 2611
9360ffd1
DM		 2612 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2613 goto nla_put_failure;
b9454e83
JB		 2614
2615 nla_nest_end(cookie->msg, key);
2616
41ade00f
JB		 2617 return;
2618 nla_put_failure:
2619 cookie->error = 1;
2620}
2621
2622static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2623{
4c476991 2624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2625 int err;
4c476991 2626 struct net_device *dev = info->user_ptr[1];
41ade00f 2627 u8 key_idx = 0;
e31b8213
JB		 2628 const u8 *mac_addr = NULL;
2629 bool pairwise;
41ade00f
JB		 2630 struct get_key_cookie cookie = {
2631 .error = 0,
2632 };
2633 void *hdr;
2634 struct sk_buff *msg;
2635
2636 if (info->attrs[NL80211_ATTR_KEY_IDX])
2637 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2638
3cfcf6ac 2639 if (key_idx > 5)
41ade00f
JB		 2640 return -EINVAL;
2641
2642 if (info->attrs[NL80211_ATTR_MAC])
2643 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2644
e31b8213
JB		 2645 pairwise = !!mac_addr;
2646 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2647 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2648 if (kt >= NUM_NL80211_KEYTYPES)
2649 return -EINVAL;
2650 if (kt != NL80211_KEYTYPE_GROUP &&
2651 kt != NL80211_KEYTYPE_PAIRWISE)
2652 return -EINVAL;
2653 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2654 }
2655
4c476991
JB		 2656 if (!rdev->ops->get_key)
2657 return -EOPNOTSUPP;
41ade00f 2658
fd2120ca 2659 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2660 if (!msg)
2661 return -ENOMEM;
41ade00f 2662
15e47304 2663 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2664 NL80211_CMD_NEW_KEY);
4c476991
JB		 2665 if (IS_ERR(hdr))
2666 return PTR_ERR(hdr);
41ade00f
JB		 2667
2668 cookie.msg = msg;
b9454e83 2669 cookie.idx = key_idx;
41ade00f 2670
9360ffd1
DM		 2671 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2672 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2673 goto nla_put_failure;
2674 if (mac_addr &&
2675 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2676 goto nla_put_failure;
41ade00f 2677
e31b8213
JB		 2678 if (pairwise && mac_addr &&
2679 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2680 return -ENOENT;
2681
e35e4d28
HG		 2682 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2683 get_key_callback);
41ade00f
JB		 2684
2685 if (err)
6c95e2a2 2686 goto free_msg;
41ade00f
JB		 2687
2688 if (cookie.error)
2689 goto nla_put_failure;
2690
2691 genlmsg_end(msg, hdr);
4c476991 2692 return genlmsg_reply(msg, info);
41ade00f
JB		 2693
2694 nla_put_failure:
2695 err = -ENOBUFS;
6c95e2a2 2696 free_msg:
41ade00f 2697 nlmsg_free(msg);
41ade00f
JB		 2698 return err;
2699}
2700
2701static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2702{
4c476991 2703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2704 struct key_parse key;
41ade00f 2705 int err;
4c476991 2706 struct net_device *dev = info->user_ptr[1];
41ade00f 2707
b9454e83
JB		 2708 err = nl80211_parse_key(info, &key);
2709 if (err)
2710 return err;
41ade00f 2711
b9454e83 2712 if (key.idx < 0)
41ade00f
JB		 2713 return -EINVAL;
2714
b9454e83
JB		 2715 /* only support setting default key */
2716 if (!key.def && !key.defmgmt)
41ade00f
JB		 2717 return -EINVAL;
2718
dbd2fd65 2719 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2720
dbd2fd65
JB		 2721 if (key.def) {
2722 if (!rdev->ops->set_default_key) {
2723 err = -EOPNOTSUPP;
2724 goto out;
2725 }
41ade00f 2726
dbd2fd65
JB		 2727 err = nl80211_key_allowed(dev->ieee80211_ptr);
2728 if (err)
2729 goto out;
2730
e35e4d28 2731 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2732 key.def_uni, key.def_multi);
2733
2734 if (err)
2735 goto out;
fffd0934 2736
3d23e349 2737#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2738 dev->ieee80211_ptr->wext.default_key = key.idx;
2739#endif
2740 } else {
2741 if (key.def_uni || !key.def_multi) {
2742 err = -EINVAL;
2743 goto out;
2744 }
2745
2746 if (!rdev->ops->set_default_mgmt_key) {
2747 err = -EOPNOTSUPP;
2748 goto out;
2749 }
2750
2751 err = nl80211_key_allowed(dev->ieee80211_ptr);
2752 if (err)
2753 goto out;
2754
e35e4d28 2755 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2756 if (err)
2757 goto out;
2758
2759#ifdef CONFIG_CFG80211_WEXT
2760 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2761#endif
dbd2fd65
JB		 2762 }
2763
2764 out:
fffd0934 2765 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2766
41ade00f
JB		 2767 return err;
2768}
2769
2770static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2771{
4c476991 2772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2773 int err;
4c476991 2774 struct net_device *dev = info->user_ptr[1];
b9454e83 2775 struct key_parse key;
e31b8213 2776 const u8 *mac_addr = NULL;
41ade00f 2777
b9454e83
JB		 2778 err = nl80211_parse_key(info, &key);
2779 if (err)
2780 return err;
41ade00f 2781
b9454e83 2782 if (!key.p.key)
41ade00f
JB		 2783 return -EINVAL;
2784
41ade00f
JB		 2785 if (info->attrs[NL80211_ATTR_MAC])
2786 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2787
e31b8213
JB		 2788 if (key.type == -1) {
2789 if (mac_addr)
2790 key.type = NL80211_KEYTYPE_PAIRWISE;
2791 else
2792 key.type = NL80211_KEYTYPE_GROUP;
2793 }
2794
2795 /* for now */
2796 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2797 key.type != NL80211_KEYTYPE_GROUP)
2798 return -EINVAL;
2799
4c476991
JB		 2800 if (!rdev->ops->add_key)
2801 return -EOPNOTSUPP;
25e47c18 2802
e31b8213
JB		 2803 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2804 key.type == NL80211_KEYTYPE_PAIRWISE,
2805 mac_addr))
4c476991 2806 return -EINVAL;
41ade00f 2807
fffd0934
JB		 2808 wdev_lock(dev->ieee80211_ptr);
2809 err = nl80211_key_allowed(dev->ieee80211_ptr);
2810 if (!err)
e35e4d28
HG		 2811 err = rdev_add_key(rdev, dev, key.idx,
2812 key.type == NL80211_KEYTYPE_PAIRWISE,
2813 mac_addr, &key.p);
fffd0934 2814 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2815
41ade00f
JB		 2816 return err;
2817}
2818
2819static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2820{
4c476991 2821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2822 int err;
4c476991 2823 struct net_device *dev = info->user_ptr[1];
41ade00f 2824 u8 *mac_addr = NULL;
b9454e83 2825 struct key_parse key;
41ade00f 2826
b9454e83
JB		 2827 err = nl80211_parse_key(info, &key);
2828 if (err)
2829 return err;
41ade00f
JB		 2830
2831 if (info->attrs[NL80211_ATTR_MAC])
2832 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2833
e31b8213
JB		 2834 if (key.type == -1) {
2835 if (mac_addr)
2836 key.type = NL80211_KEYTYPE_PAIRWISE;
2837 else
2838 key.type = NL80211_KEYTYPE_GROUP;
2839 }
2840
2841 /* for now */
2842 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2843 key.type != NL80211_KEYTYPE_GROUP)
2844 return -EINVAL;
2845
4c476991
JB		 2846 if (!rdev->ops->del_key)
2847 return -EOPNOTSUPP;
41ade00f 2848
fffd0934
JB		 2849 wdev_lock(dev->ieee80211_ptr);
2850 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2851
2852 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2853 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2854 err = -ENOENT;
2855
fffd0934 2856 if (!err)
e35e4d28
HG		 2857 err = rdev_del_key(rdev, dev, key.idx,
2858 key.type == NL80211_KEYTYPE_PAIRWISE,
2859 mac_addr);
41ade00f 2860
3d23e349 2861#ifdef CONFIG_CFG80211_WEXT
08645126 2862 if (!err) {
b9454e83 2863 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2864 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2865 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2866 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2867 }
2868#endif
fffd0934 2869 wdev_unlock(dev->ieee80211_ptr);
08645126 2870
41ade00f
JB		 2871 return err;
2872}
2873
77765eaf
VT		 2874/* This function returns an error or the number of nested attributes */
2875static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2876{
2877 struct nlattr *attr;
2878 int n_entries = 0, tmp;
2879
2880 nla_for_each_nested(attr, nl_attr, tmp) {
2881 if (nla_len(attr) != ETH_ALEN)
2882 return -EINVAL;
2883
2884 n_entries++;
2885 }
2886
2887 return n_entries;
2888}
2889
2890/*
2891 * This function parses ACL information and allocates memory for ACL data.
2892 * On successful return, the calling function is responsible to free the
2893 * ACL buffer returned by this function.
2894 */
2895static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2896 struct genl_info *info)
2897{
2898 enum nl80211_acl_policy acl_policy;
2899 struct nlattr *attr;
2900 struct cfg80211_acl_data *acl;
2901 int i = 0, n_entries, tmp;
2902
2903 if (!wiphy->max_acl_mac_addrs)
2904 return ERR_PTR(-EOPNOTSUPP);
2905
2906 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2907 return ERR_PTR(-EINVAL);
2908
2909 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2910 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2911 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2912 return ERR_PTR(-EINVAL);
2913
2914 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2915 return ERR_PTR(-EINVAL);
2916
2917 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2918 if (n_entries < 0)
2919 return ERR_PTR(n_entries);
2920
2921 if (n_entries > wiphy->max_acl_mac_addrs)
2922 return ERR_PTR(-ENOTSUPP);
2923
2924 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2925 GFP_KERNEL);
2926 if (!acl)
2927 return ERR_PTR(-ENOMEM);
2928
2929 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2930 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2931 i++;
2932 }
2933
2934 acl->n_acl_entries = n_entries;
2935 acl->acl_policy = acl_policy;
2936
2937 return acl;
2938}
2939
2940static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2941{
2942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2943 struct net_device *dev = info->user_ptr[1];
2944 struct cfg80211_acl_data *acl;
2945 int err;
2946
2947 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2948 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2949 return -EOPNOTSUPP;
2950
2951 if (!dev->ieee80211_ptr->beacon_interval)
2952 return -EINVAL;
2953
2954 acl = parse_acl_data(&rdev->wiphy, info);
2955 if (IS_ERR(acl))
2956 return PTR_ERR(acl);
2957
2958 err = rdev_set_mac_acl(rdev, dev, acl);
2959
2960 kfree(acl);
2961
2962 return err;
2963}
2964
a1193be8 2965static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 2966 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2967{
8860020e 2968 bool haveinfo = false;
ed1b6cc7 2969
a1193be8
SW		 2970 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2971 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2972 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2973 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2974 return -EINVAL;
2975
8860020e 2976 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2977
a1193be8
SW		 2978 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
2979 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
2980 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 2981 if (!bcn->head_len)
2982 return -EINVAL;
2983 haveinfo = true;
ed1b6cc7
JB		 2984 }
2985
a1193be8
SW		 2986 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
2987 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
2988 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2989 haveinfo = true;
ed1b6cc7
JB		 2990 }
2991
4c476991
JB		 2992 if (!haveinfo)
2993 return -EINVAL;
3b85875a 2994
a1193be8
SW		 2995 if (attrs[NL80211_ATTR_IE]) {
2996 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
2997 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2998 }
2999
a1193be8 3000 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3001 bcn->proberesp_ies =
a1193be8 3002 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3003 bcn->proberesp_ies_len =
a1193be8 3004 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3005 }
3006
a1193be8 3007 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3008 bcn->assocresp_ies =
a1193be8 3009 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3010 bcn->assocresp_ies_len =
a1193be8 3011 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3012 }
3013
a1193be8
SW		 3014 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3015 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3016 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3017 }
3018
8860020e
JB		 3019 return 0;
3020}
3021
46c1dd0c
FF		 3022static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3023 struct cfg80211_ap_settings *params)
3024{
3025 struct wireless_dev *wdev;
3026 bool ret = false;
3027
89a54e48 3028 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3029 if (wdev->iftype != NL80211_IFTYPE_AP &&
3030 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3031 continue;
3032
683b6d3b 3033 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3034 continue;
3035
683b6d3b 3036 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3037 ret = true;
3038 break;
3039 }
3040
46c1dd0c
FF		 3041 return ret;
3042}
3043
e39e5b5e
JM		 3044static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3045 enum nl80211_auth_type auth_type,
3046 enum nl80211_commands cmd)
3047{
3048 if (auth_type > NL80211_AUTHTYPE_MAX)
3049 return false;
3050
3051 switch (cmd) {
3052 case NL80211_CMD_AUTHENTICATE:
3053 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3054 auth_type == NL80211_AUTHTYPE_SAE)
3055 return false;
3056 return true;
3057 case NL80211_CMD_CONNECT:
3058 case NL80211_CMD_START_AP:
3059 /* SAE not supported yet */
3060 if (auth_type == NL80211_AUTHTYPE_SAE)
3061 return false;
3062 return true;
3063 default:
3064 return false;
3065 }
3066}
3067
8860020e
JB		 3068static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3069{
3070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3071 struct net_device *dev = info->user_ptr[1];
3072 struct wireless_dev *wdev = dev->ieee80211_ptr;
3073 struct cfg80211_ap_settings params;
3074 int err;
04f39047 3075 u8 radar_detect_width = 0;
8860020e
JB		 3076
3077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3078 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3079 return -EOPNOTSUPP;
3080
3081 if (!rdev->ops->start_ap)
3082 return -EOPNOTSUPP;
3083
3084 if (wdev->beacon_interval)
3085 return -EALREADY;
3086
3087 memset(&params, 0, sizeof(params));
3088
3089 /* these are required for START_AP */
3090 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3091 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3092 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3093 return -EINVAL;
3094
a1193be8 3095 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3096 if (err)
3097 return err;
3098
3099 params.beacon_interval =
3100 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3101 params.dtim_period =
3102 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3103
3104 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3105 if (err)
3106 return err;
3107
3108 /*
3109 * In theory, some of these attributes should be required here
3110 * but since they were not used when the command was originally
3111 * added, keep them optional for old user space programs to let
3112 * them continue to work with drivers that do not need the
3113 * additional information -- drivers must check!
3114 */
3115 if (info->attrs[NL80211_ATTR_SSID]) {
3116 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3117 params.ssid_len =
3118 nla_len(info->attrs[NL80211_ATTR_SSID]);
3119 if (params.ssid_len == 0 ||
3120 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3121 return -EINVAL;
3122 }
3123
3124 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3125 params.hidden_ssid = nla_get_u32(
3126 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3127 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3128 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3129 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3130 return -EINVAL;
3131 }
3132
3133 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3134
3135 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3136 params.auth_type = nla_get_u32(
3137 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3138 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3139 NL80211_CMD_START_AP))
8860020e
JB		 3140 return -EINVAL;
3141 } else
3142 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3143
3144 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3145 NL80211_MAX_NR_CIPHER_SUITES);
3146 if (err)
3147 return err;
3148
1b658f11
VT		 3149 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3150 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3151 return -EOPNOTSUPP;
3152 params.inactivity_timeout = nla_get_u16(
3153 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3154 }
3155
53cabad7
JB		 3156 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3157 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3158 return -EINVAL;
3159 params.p2p_ctwindow =
3160 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3161 if (params.p2p_ctwindow > 127)
3162 return -EINVAL;
3163 if (params.p2p_ctwindow != 0 &&
3164 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3165 return -EINVAL;
3166 }
3167
3168 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3169 u8 tmp;
3170
3171 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3172 return -EINVAL;
3173 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3174 if (tmp > 1)
3175 return -EINVAL;
3176 params.p2p_opp_ps = tmp;
3177 if (params.p2p_opp_ps != 0 &&
3178 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3179 return -EINVAL;
3180 }
3181
aa430da4 3182 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3183 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3184 if (err)
3185 return err;
3186 } else if (wdev->preset_chandef.chan) {
3187 params.chandef = wdev->preset_chandef;
46c1dd0c 3188 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3189 return -EINVAL;
3190
683b6d3b 3191 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3192 return -EINVAL;
3193
04f39047
SW		 3194 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3195 if (err < 0)
3196 return err;
3197 if (err) {
3198 radar_detect_width = BIT(params.chandef.width);
3199 params.radar_required = true;
3200 }
3201
04f39047
SW		 3202 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3203 params.chandef.chan,
3204 CHAN_MODE_SHARED,
3205 radar_detect_width);
e4e32459
MK		 3206 if (err)
3207 return err;
3208
77765eaf
VT		 3209 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3210 params.acl = parse_acl_data(&rdev->wiphy, info);
3211 if (IS_ERR(params.acl))
3212 return PTR_ERR(params.acl);
3213 }
3214
e35e4d28 3215 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3216 if (!err) {
683b6d3b 3217 wdev->preset_chandef = params.chandef;
8860020e 3218 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3219 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3220 wdev->ssid_len = params.ssid_len;
3221 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3222 }
77765eaf
VT		 3223
3224 kfree(params.acl);
3225
56d1893d 3226 return err;
ed1b6cc7
JB		 3227}
3228
8860020e
JB		 3229static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3230{
3231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3232 struct net_device *dev = info->user_ptr[1];
3233 struct wireless_dev *wdev = dev->ieee80211_ptr;
3234 struct cfg80211_beacon_data params;
3235 int err;
3236
3237 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3238 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3239 return -EOPNOTSUPP;
3240
3241 if (!rdev->ops->change_beacon)
3242 return -EOPNOTSUPP;
3243
3244 if (!wdev->beacon_interval)
3245 return -EINVAL;
3246
a1193be8 3247 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3248 if (err)
3249 return err;
3250
e35e4d28 3251 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3252}
3253
3254static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3255{
4c476991
JB		 3256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3257 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3258
60771780 3259 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3260}
3261
5727ef1b
JB		 3262static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3263 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3264 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3265 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3266 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3267 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3268 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3269};
3270
eccb8e8f 3271static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3272 enum nl80211_iftype iftype,
eccb8e8f 3273 struct station_parameters *params)
5727ef1b
JB		 3274{
3275 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3276 struct nlattr *nla;
5727ef1b
JB		 3277 int flag;
3278
eccb8e8f
JB		 3279 /*
3280 * Try parsing the new attribute first so userspace
3281 * can specify both for older kernels.
3282 */
3283 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3284 if (nla) {
3285 struct nl80211_sta_flag_update *sta_flags;
3286
3287 sta_flags = nla_data(nla);
3288 params->sta_flags_mask = sta_flags->mask;
3289 params->sta_flags_set = sta_flags->set;
77ee7c89 3290 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3291 if ((params->sta_flags_mask |
3292 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3293 return -EINVAL;
3294 return 0;
3295 }
3296
3297 /* if present, parse the old attribute */
5727ef1b 3298
eccb8e8f 3299 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3300 if (!nla)
3301 return 0;
3302
3303 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3304 nla, sta_flags_policy))
3305 return -EINVAL;
3306
bdd3ae3d
JB		 3307 /*
3308 * Only allow certain flags for interface types so that
3309 * other attributes are silently ignored. Remember that
3310 * this is backward compatibility code with old userspace
3311 * and shouldn't be hit in other cases anyway.
3312 */
3313 switch (iftype) {
3314 case NL80211_IFTYPE_AP:
3315 case NL80211_IFTYPE_AP_VLAN:
3316 case NL80211_IFTYPE_P2P_GO:
3317 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3318 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3319 BIT(NL80211_STA_FLAG_WME) |
3320 BIT(NL80211_STA_FLAG_MFP);
3321 break;
3322 case NL80211_IFTYPE_P2P_CLIENT:
3323 case NL80211_IFTYPE_STATION:
3324 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3325 BIT(NL80211_STA_FLAG_TDLS_PEER);
3326 break;
3327 case NL80211_IFTYPE_MESH_POINT:
3328 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3329 BIT(NL80211_STA_FLAG_MFP) |
3330 BIT(NL80211_STA_FLAG_AUTHORIZED);
3331 default:
3332 return -EINVAL;
3333 }
5727ef1b 3334
3383b5a6
JB		 3335 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3336 if (flags[flag]) {
eccb8e8f 3337 params->sta_flags_set |= (1<<flag);
5727ef1b 3338
3383b5a6
JB		 3339 /* no longer support new API additions in old API */
3340 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3341 return -EINVAL;
3342 }
3343 }
3344
5727ef1b
JB		 3345 return 0;
3346}
3347
c8dcfd8a
FF		 3348static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3349 int attr)
3350{
3351 struct nlattr *rate;
8eb41c8d
VK		 3352 u32 bitrate;
3353 u16 bitrate_compat;
c8dcfd8a
FF		 3354
3355 rate = nla_nest_start(msg, attr);
3356 if (!rate)
db9c64cf 3357 return false;
c8dcfd8a
FF		 3358
3359 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3360 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3361 /* report 16-bit bitrate only if we can */
3362 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3363 if (bitrate > 0 &&
3364 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3365 return false;
3366 if (bitrate_compat > 0 &&
3367 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3368 return false;
3369
3370 if (info->flags & RATE_INFO_FLAGS_MCS) {
3371 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3372 return false;
3373 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3374 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3375 return false;
3376 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3377 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3378 return false;
3379 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3380 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3381 return false;
3382 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3383 return false;
3384 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3385 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3386 return false;
3387 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3388 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3389 return false;
3390 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3391 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3392 return false;
3393 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3394 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3395 return false;
3396 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3397 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3398 return false;
3399 }
c8dcfd8a
FF		 3400
3401 nla_nest_end(msg, rate);
3402 return true;
c8dcfd8a
FF		 3403}
3404
119363c7
FF		 3405static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3406 int id)
3407{
3408 void *attr;
3409 int i = 0;
3410
3411 if (!mask)
3412 return true;
3413
3414 attr = nla_nest_start(msg, id);
3415 if (!attr)
3416 return false;
3417
3418 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3419 if (!(mask & BIT(i)))
3420 continue;
3421
3422 if (nla_put_u8(msg, i, signal[i]))
3423 return false;
3424 }
3425
3426 nla_nest_end(msg, attr);
3427
3428 return true;
3429}
3430
15e47304 3431static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3432 int flags,
3433 struct cfg80211_registered_device *rdev,
3434 struct net_device *dev,
98b62183 3435 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3436{
3437 void *hdr;
f4263c98 3438 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3439
15e47304 3440 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3441 if (!hdr)
3442 return -1;
3443
9360ffd1
DM		 3444 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3445 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3446 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3447 goto nla_put_failure;
f5ea9120 3448
2ec600d6
LCC		 3449 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3450 if (!sinfoattr)
fd5b74dc 3451 goto nla_put_failure;
9360ffd1
DM		 3452 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3453 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3454 sinfo->connected_time))
3455 goto nla_put_failure;
3456 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3457 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3458 sinfo->inactive_time))
3459 goto nla_put_failure;
42745e03
VK		 3460 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3461 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3462 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3463 (u32)sinfo->rx_bytes))
9360ffd1 3464 goto nla_put_failure;
42745e03 3465 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3466 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3467 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3468 (u32)sinfo->tx_bytes))
3469 goto nla_put_failure;
3470 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3471 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3472 sinfo->rx_bytes))
3473 goto nla_put_failure;
3474 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3475 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3476 sinfo->tx_bytes))
3477 goto nla_put_failure;
3478 if ((sinfo->filled & STATION_INFO_LLID) &&
3479 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3480 goto nla_put_failure;
3481 if ((sinfo->filled & STATION_INFO_PLID) &&
3482 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3483 goto nla_put_failure;
3484 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3485 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3486 sinfo->plink_state))
3487 goto nla_put_failure;
66266b3a
JL		 3488 switch (rdev->wiphy.signal_type) {
3489 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3490 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3491 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3492 sinfo->signal))
3493 goto nla_put_failure;
3494 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3495 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3496 sinfo->signal_avg))
3497 goto nla_put_failure;
66266b3a
JL		 3498 break;
3499 default:
3500 break;
3501 }
119363c7
FF		 3502 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3503 if (!nl80211_put_signal(msg, sinfo->chains,
3504 sinfo->chain_signal,
3505 NL80211_STA_INFO_CHAIN_SIGNAL))
3506 goto nla_put_failure;
3507 }
3508 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3509 if (!nl80211_put_signal(msg, sinfo->chains,
3510 sinfo->chain_signal_avg,
3511 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3512 goto nla_put_failure;
3513 }
420e7fab 3514 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3515 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3516 NL80211_STA_INFO_TX_BITRATE))
3517 goto nla_put_failure;
3518 }
3519 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3520 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3521 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3522 goto nla_put_failure;
420e7fab 3523 }
9360ffd1
DM		 3524 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3525 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3526 sinfo->rx_packets))
3527 goto nla_put_failure;
3528 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3529 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3530 sinfo->tx_packets))
3531 goto nla_put_failure;
3532 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3533 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3534 sinfo->tx_retries))
3535 goto nla_put_failure;
3536 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3537 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3538 sinfo->tx_failed))
3539 goto nla_put_failure;
3540 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3541 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3542 sinfo->beacon_loss_count))
3543 goto nla_put_failure;
3b1c5a53
MP		 3544 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3545 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3546 sinfo->local_pm))
3547 goto nla_put_failure;
3548 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3549 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3550 sinfo->peer_pm))
3551 goto nla_put_failure;
3552 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3553 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3554 sinfo->nonpeer_pm))
3555 goto nla_put_failure;
f4263c98
PS		 3556 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3557 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3558 if (!bss_param)
3559 goto nla_put_failure;
3560
9360ffd1
DM		 3561 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3562 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3563 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3564 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3565 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3566 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3567 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3568 sinfo->bss_param.dtim_period) ||
3569 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3570 sinfo->bss_param.beacon_interval))
3571 goto nla_put_failure;
f4263c98
PS		 3572
3573 nla_nest_end(msg, bss_param);
3574 }
9360ffd1
DM		 3575 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3576 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3577 sizeof(struct nl80211_sta_flag_update),
3578 &sinfo->sta_flags))
3579 goto nla_put_failure;
7eab0f64
JL		 3580 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3581 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3582 sinfo->t_offset))
3583 goto nla_put_failure;
2ec600d6 3584 nla_nest_end(msg, sinfoattr);
fd5b74dc 3585
9360ffd1
DM		 3586 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3587 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3588 sinfo->assoc_req_ies))
3589 goto nla_put_failure;
50d3dfb7 3590
fd5b74dc
JB		 3591 return genlmsg_end(msg, hdr);
3592
3593 nla_put_failure:
bc3ed28c
TG		 3594 genlmsg_cancel(msg, hdr);
3595 return -EMSGSIZE;
fd5b74dc
JB		 3596}
3597
2ec600d6 3598static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3599 struct netlink_callback *cb)
2ec600d6 3600{
2ec600d6
LCC		 3601 struct station_info sinfo;
3602 struct cfg80211_registered_device *dev;
97990a06 3603 struct wireless_dev *wdev;
2ec600d6 3604 u8 mac_addr[ETH_ALEN];
97990a06 3605 int sta_idx = cb->args[2];
2ec600d6 3606 int err;
2ec600d6 3607
97990a06 3608 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3609 if (err)
3610 return err;
bba95fef 3611
97990a06
JB		 3612 if (!wdev->netdev) {
3613 err = -EINVAL;
3614 goto out_err;
3615 }
3616
bba95fef 3617 if (!dev->ops->dump_station) {
eec60b03 3618 err = -EOPNOTSUPP;
bba95fef
JB		 3619 goto out_err;
3620 }
3621
bba95fef 3622 while (1) {
f612cedf 3623 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3624 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3625 mac_addr, &sinfo);
bba95fef
JB		 3626 if (err == -ENOENT)
3627 break;
3628 if (err)
3b85875a 3629 goto out_err;
bba95fef
JB		 3630
3631 if (nl80211_send_station(skb,
15e47304 3632 NETLINK_CB(cb->skb).portid,
bba95fef 3633 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3634 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3635 &sinfo) < 0)
3636 goto out;
3637
3638 sta_idx++;
3639 }
3640
3641
3642 out:
97990a06 3643 cb->args[2] = sta_idx;
bba95fef 3644 err = skb->len;
bba95fef 3645 out_err:
97990a06 3646 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3647
3648 return err;
2ec600d6 3649}
fd5b74dc 3650
5727ef1b
JB		 3651static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3652{
4c476991
JB		 3653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3654 struct net_device *dev = info->user_ptr[1];
2ec600d6 3655 struct station_info sinfo;
fd5b74dc
JB		 3656 struct sk_buff *msg;
3657 u8 *mac_addr = NULL;
4c476991 3658 int err;
fd5b74dc 3659
2ec600d6 3660 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3661
3662 if (!info->attrs[NL80211_ATTR_MAC])
3663 return -EINVAL;
3664
3665 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3666
4c476991
JB		 3667 if (!rdev->ops->get_station)
3668 return -EOPNOTSUPP;
3b85875a 3669
e35e4d28 3670 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3671 if (err)
4c476991 3672 return err;
2ec600d6 3673
fd2120ca 3674 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3675 if (!msg)
4c476991 3676 return -ENOMEM;
fd5b74dc 3677
15e47304 3678 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3679 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3680 nlmsg_free(msg);
3681 return -ENOBUFS;
3682 }
3b85875a 3683
4c476991 3684 return genlmsg_reply(msg, info);
5727ef1b
JB		 3685}
3686
77ee7c89
JB		 3687int cfg80211_check_station_change(struct wiphy *wiphy,
3688 struct station_parameters *params,
3689 enum cfg80211_station_type statype)
3690{
3691 if (params->listen_interval != -1)
3692 return -EINVAL;
3693 if (params->aid)
3694 return -EINVAL;
3695
3696 /* When you run into this, adjust the code below for the new flag */
3697 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3698
3699 switch (statype) {
eef941e6
TP		 3700 case CFG80211_STA_MESH_PEER_KERNEL:
3701 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3702 /*
3703 * No ignoring the TDLS flag here -- the userspace mesh
3704 * code doesn't have the bug of including TDLS in the
3705 * mask everywhere.
3706 */
3707 if (params->sta_flags_mask &
3708 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3709 BIT(NL80211_STA_FLAG_MFP) |
3710 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3711 return -EINVAL;
3712 break;
3713 case CFG80211_STA_TDLS_PEER_SETUP:
3714 case CFG80211_STA_TDLS_PEER_ACTIVE:
3715 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3716 return -EINVAL;
3717 /* ignore since it can't change */
3718 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3719 break;
3720 default:
3721 /* disallow mesh-specific things */
3722 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3723 return -EINVAL;
3724 if (params->local_pm)
3725 return -EINVAL;
3726 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3727 return -EINVAL;
3728 }
3729
3730 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3731 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3732 /* TDLS can't be set, ... */
3733 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3734 return -EINVAL;
3735 /*
3736 * ... but don't bother the driver with it. This works around
3737 * a hostapd/wpa_supplicant issue -- it always includes the
3738 * TLDS_PEER flag in the mask even for AP mode.
3739 */
3740 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3741 }
3742
3743 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3744 /* reject other things that can't change */
3745 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3746 return -EINVAL;
3747 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3748 return -EINVAL;
3749 if (params->supported_rates)
3750 return -EINVAL;
3751 if (params->ext_capab || params->ht_capa || params->vht_capa)
3752 return -EINVAL;
3753 }
3754
3755 if (statype != CFG80211_STA_AP_CLIENT) {
3756 if (params->vlan)
3757 return -EINVAL;
3758 }
3759
3760 switch (statype) {
3761 case CFG80211_STA_AP_MLME_CLIENT:
3762 /* Use this only for authorizing/unauthorizing a station */
3763 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3764 return -EOPNOTSUPP;
3765 break;
3766 case CFG80211_STA_AP_CLIENT:
3767 /* accept only the listed bits */
3768 if (params->sta_flags_mask &
3769 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3770 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3771 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3772 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3773 BIT(NL80211_STA_FLAG_WME) |
3774 BIT(NL80211_STA_FLAG_MFP)))
3775 return -EINVAL;
3776
3777 /* but authenticated/associated only if driver handles it */
3778 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3779 params->sta_flags_mask &
3780 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3781 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3782 return -EINVAL;
3783 break;
3784 case CFG80211_STA_IBSS:
3785 case CFG80211_STA_AP_STA:
3786 /* reject any changes other than AUTHORIZED */
3787 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3788 return -EINVAL;
3789 break;
3790 case CFG80211_STA_TDLS_PEER_SETUP:
3791 /* reject any changes other than AUTHORIZED or WME */
3792 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3793 BIT(NL80211_STA_FLAG_WME)))
3794 return -EINVAL;
3795 /* force (at least) rates when authorizing */
3796 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3797 !params->supported_rates)
3798 return -EINVAL;
3799 break;
3800 case CFG80211_STA_TDLS_PEER_ACTIVE:
3801 /* reject any changes */
3802 return -EINVAL;
eef941e6 3803 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3804 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3805 return -EINVAL;
3806 break;
eef941e6 3807 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3808 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3809 return -EINVAL;
3810 break;
3811 }
3812
3813 return 0;
3814}
3815EXPORT_SYMBOL(cfg80211_check_station_change);
3816
5727ef1b 3817/*
c258d2de 3818 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3819 */
80b99899
JB		 3820static struct net_device *get_vlan(struct genl_info *info,
3821 struct cfg80211_registered_device *rdev)
5727ef1b 3822{
463d0183 3823 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3824 struct net_device *v;
3825 int ret;
3826
3827 if (!vlanattr)
3828 return NULL;
3829
3830 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3831 if (!v)
3832 return ERR_PTR(-ENODEV);
3833
3834 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3835 ret = -EINVAL;
3836 goto error;
5727ef1b 3837 }
80b99899 3838
77ee7c89
JB		 3839 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3840 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3841 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3842 ret = -EINVAL;
3843 goto error;
3844 }
3845
80b99899
JB		 3846 if (!netif_running(v)) {
3847 ret = -ENETDOWN;
3848 goto error;
3849 }
3850
3851 return v;
3852 error:
3853 dev_put(v);
3854 return ERR_PTR(ret);
5727ef1b
JB		 3855}
3856
df881293
JM		 3857static struct nla_policy
3858nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3859 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3860 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3861};
3862
ff276691
JB		 3863static int nl80211_parse_sta_wme(struct genl_info *info,
3864 struct station_parameters *params)
df881293 3865{
df881293
JM		 3866 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3867 struct nlattr *nla;
3868 int err;
3869
df881293
JM		 3870 /* parse WME attributes if present */
3871 if (!info->attrs[NL80211_ATTR_STA_WME])
3872 return 0;
3873
3874 nla = info->attrs[NL80211_ATTR_STA_WME];
3875 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3876 nl80211_sta_wme_policy);
3877 if (err)
3878 return err;
3879
3880 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3881 params->uapsd_queues = nla_get_u8(
3882 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3883 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3884 return -EINVAL;
3885
3886 if (tb[NL80211_STA_WME_MAX_SP])
3887 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3888
3889 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3890 return -EINVAL;
3891
3892 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3893
3894 return 0;
3895}
3896
ff276691
JB		 3897static int nl80211_set_station_tdls(struct genl_info *info,
3898 struct station_parameters *params)
3899{
3900 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3901 if (info->attrs[NL80211_ATTR_PEER_AID])
3902 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3903 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3904 params->ht_capa =
3905 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3906 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3907 params->vht_capa =
3908 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3909
3910 return nl80211_parse_sta_wme(info, params);
3911}
3912
5727ef1b
JB		 3913static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3914{
4c476991 3915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3916 struct net_device *dev = info->user_ptr[1];
5727ef1b 3917 struct station_parameters params;
77ee7c89
JB		 3918 u8 *mac_addr;
3919 int err;
5727ef1b
JB		 3920
3921 memset(&params, 0, sizeof(params));
3922
3923 params.listen_interval = -1;
3924
77ee7c89
JB		 3925 if (!rdev->ops->change_station)
3926 return -EOPNOTSUPP;
3927
5727ef1b
JB		 3928 if (info->attrs[NL80211_ATTR_STA_AID])
3929 return -EINVAL;
3930
3931 if (!info->attrs[NL80211_ATTR_MAC])
3932 return -EINVAL;
3933
3934 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3935
3936 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3937 params.supported_rates =
3938 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3939 params.supported_rates_len =
3940 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3941 }
3942
9d62a986
JM		 3943 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3944 params.capability =
3945 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3946 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3947 }
3948
3949 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3950 params.ext_capab =
3951 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3952 params.ext_capab_len =
3953 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3954 }
3955
df881293 3956 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3957 return -EINVAL;
36aedc90 3958
bdd3ae3d 3959 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3960 return -EINVAL;
3961
f8bacc21 3962 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3963 params.plink_action =
f8bacc21
JB		 3964 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3965 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3966 return -EINVAL;
3967 }
2ec600d6 3968
f8bacc21 3969 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3970 params.plink_state =
f8bacc21
JB		 3971 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3972 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3973 return -EINVAL;
3974 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3975 }
9c3990aa 3976
3b1c5a53
MP		 3977 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3978 enum nl80211_mesh_power_mode pm = nla_get_u32(
3979 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3980
3981 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3982 pm > NL80211_MESH_POWER_MAX)
3983 return -EINVAL;
3984
3985 params.local_pm = pm;
3986 }
3987
77ee7c89
JB		 3988 /* Include parameters for TDLS peer (will check later) */
3989 err = nl80211_set_station_tdls(info, &params);
3990 if (err)
3991 return err;
3992
3993 params.vlan = get_vlan(info, rdev);
3994 if (IS_ERR(params.vlan))
3995 return PTR_ERR(params.vlan);
3996
a97f4424
JB		 3997 switch (dev->ieee80211_ptr->iftype) {
3998 case NL80211_IFTYPE_AP:
3999 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4000 case NL80211_IFTYPE_P2P_GO:
074ac8df 4001 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4002 case NL80211_IFTYPE_STATION:
267335d6 4003 case NL80211_IFTYPE_ADHOC:
a97f4424 4004 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4005 break;
4006 default:
77ee7c89
JB		 4007 err = -EOPNOTSUPP;
4008 goto out_put_vlan;
034d655e
JB		 4009 }
4010
77ee7c89 4011 /* driver will call cfg80211_check_station_change() */
e35e4d28 4012 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4013
77ee7c89 4014 out_put_vlan:
5727ef1b
JB		 4015 if (params.vlan)
4016 dev_put(params.vlan);
3b85875a 4017
5727ef1b
JB		 4018 return err;
4019}
4020
4021static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4022{
4c476991 4023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4024 int err;
4c476991 4025 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4026 struct station_parameters params;
4027 u8 *mac_addr = NULL;
4028
4029 memset(&params, 0, sizeof(params));
4030
984c311b
JB		 4031 if (!rdev->ops->add_station)
4032 return -EOPNOTSUPP;
4033
5727ef1b
JB		 4034 if (!info->attrs[NL80211_ATTR_MAC])
4035 return -EINVAL;
4036
5727ef1b
JB		 4037 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4038 return -EINVAL;
4039
4040 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4041 return -EINVAL;
4042
5e4b6f56
JM		 4043 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4044 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4045 return -EINVAL;
4046
5727ef1b
JB		 4047 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4048 params.supported_rates =
4049 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4050 params.supported_rates_len =
4051 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4052 params.listen_interval =
4053 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4054
3d124ea2 4055 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4056 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4057 else
4058 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4059 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4060 return -EINVAL;
51b50fbe 4061
9d62a986
JM		 4062 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4063 params.capability =
4064 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4065 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4066 }
4067
4068 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4069 params.ext_capab =
4070 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4071 params.ext_capab_len =
4072 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4073 }
4074
36aedc90
JM		 4075 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4076 params.ht_capa =
4077 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4078
f461be3e
MP		 4079 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4080 params.vht_capa =
4081 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4082
f8bacc21 4083 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4084 params.plink_action =
f8bacc21
JB		 4085 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4086 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4087 return -EINVAL;
4088 }
96b78dff 4089
ff276691
JB		 4090 err = nl80211_parse_sta_wme(info, &params);
4091 if (err)
4092 return err;
bdd90d5e 4093
bdd3ae3d 4094 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4095 return -EINVAL;
4096
77ee7c89
JB		 4097 /* When you run into this, adjust the code below for the new flag */
4098 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4099
bdd90d5e
JB		 4100 switch (dev->ieee80211_ptr->iftype) {
4101 case NL80211_IFTYPE_AP:
4102 case NL80211_IFTYPE_AP_VLAN:
4103 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4104 /* ignore WME attributes if iface/sta is not capable */
4105 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4106 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4107 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4108
bdd90d5e 4109 /* TDLS peers cannot be added */
3d124ea2
JM		 4110 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4111 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4112 return -EINVAL;
bdd90d5e
JB		 4113 /* but don't bother the driver with it */
4114 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4115
d582cffb
JB		 4116 /* allow authenticated/associated only if driver handles it */
4117 if (!(rdev->wiphy.features &
4118 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4119 params.sta_flags_mask &
4120 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4121 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4122 return -EINVAL;
4123
bdd90d5e
JB		 4124 /* must be last in here for error handling */
4125 params.vlan = get_vlan(info, rdev);
4126 if (IS_ERR(params.vlan))
4127 return PTR_ERR(params.vlan);
4128 break;
4129 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4130 /* ignore uAPSD data */
4131 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4132
d582cffb
JB		 4133 /* associated is disallowed */
4134 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4135 return -EINVAL;
bdd90d5e 4136 /* TDLS peers cannot be added */
3d124ea2
JM		 4137 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4138 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4139 return -EINVAL;
4140 break;
4141 case NL80211_IFTYPE_STATION:
93d08f0b 4142 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4143 /* ignore uAPSD data */
4144 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4145
77ee7c89
JB		 4146 /* these are disallowed */
4147 if (params.sta_flags_mask &
4148 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4149 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4150 return -EINVAL;
bdd90d5e
JB		 4151 /* Only TDLS peers can be added */
4152 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4153 return -EINVAL;
4154 /* Can only add if TDLS ... */
4155 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4156 return -EOPNOTSUPP;
4157 /* ... with external setup is supported */
4158 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4159 return -EOPNOTSUPP;
77ee7c89
JB		 4160 /*
4161 * Older wpa_supplicant versions always mark the TDLS peer
4162 * as authorized, but it shouldn't yet be.
4163 */
4164 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4165 break;
4166 default:
4167 return -EOPNOTSUPP;
c75786c9
EP		 4168 }
4169
bdd90d5e 4170 /* be aware of params.vlan when changing code here */
5727ef1b 4171
e35e4d28 4172 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4173
5727ef1b
JB		 4174 if (params.vlan)
4175 dev_put(params.vlan);
5727ef1b
JB		 4176 return err;
4177}
4178
4179static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4180{
4c476991
JB		 4181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4182 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4183 u8 *mac_addr = NULL;
4184
4185 if (info->attrs[NL80211_ATTR_MAC])
4186 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4187
e80cf853 4188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4190 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4191 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4192 return -EINVAL;
5727ef1b 4193
4c476991
JB		 4194 if (!rdev->ops->del_station)
4195 return -EOPNOTSUPP;
3b85875a 4196
e35e4d28 4197 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4198}
4199
15e47304 4200static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4201 int flags, struct net_device *dev,
4202 u8 *dst, u8 *next_hop,
4203 struct mpath_info *pinfo)
4204{
4205 void *hdr;
4206 struct nlattr *pinfoattr;
4207
15e47304 4208 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4209 if (!hdr)
4210 return -1;
4211
9360ffd1
DM		 4212 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4213 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4214 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4215 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4216 goto nla_put_failure;
f5ea9120 4217
2ec600d6
LCC		 4218 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4219 if (!pinfoattr)
4220 goto nla_put_failure;
9360ffd1
DM		 4221 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4222 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4223 pinfo->frame_qlen))
4224 goto nla_put_failure;
4225 if (((pinfo->filled & MPATH_INFO_SN) &&
4226 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4227 ((pinfo->filled & MPATH_INFO_METRIC) &&
4228 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4229 pinfo->metric)) ||
4230 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4231 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4232 pinfo->exptime)) ||
4233 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4234 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4235 pinfo->flags)) ||
4236 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4237 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4238 pinfo->discovery_timeout)) ||
4239 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4240 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4241 pinfo->discovery_retries)))
4242 goto nla_put_failure;
2ec600d6
LCC		 4243
4244 nla_nest_end(msg, pinfoattr);
4245
4246 return genlmsg_end(msg, hdr);
4247
4248 nla_put_failure:
bc3ed28c
TG		 4249 genlmsg_cancel(msg, hdr);
4250 return -EMSGSIZE;
2ec600d6
LCC		 4251}
4252
4253static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4254 struct netlink_callback *cb)
2ec600d6 4255{
2ec600d6
LCC		 4256 struct mpath_info pinfo;
4257 struct cfg80211_registered_device *dev;
97990a06 4258 struct wireless_dev *wdev;
2ec600d6
LCC		 4259 u8 dst[ETH_ALEN];
4260 u8 next_hop[ETH_ALEN];
97990a06 4261 int path_idx = cb->args[2];
2ec600d6 4262 int err;
2ec600d6 4263
97990a06 4264 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4265 if (err)
4266 return err;
bba95fef
JB		 4267
4268 if (!dev->ops->dump_mpath) {
eec60b03 4269 err = -EOPNOTSUPP;
bba95fef
JB		 4270 goto out_err;
4271 }
4272
97990a06 4273 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4274 err = -EOPNOTSUPP;
0448b5fc 4275 goto out_err;
eec60b03
JM		 4276 }
4277
bba95fef 4278 while (1) {
97990a06
JB		 4279 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4280 next_hop, &pinfo);
bba95fef 4281 if (err == -ENOENT)
2ec600d6 4282 break;
bba95fef 4283 if (err)
3b85875a 4284 goto out_err;
2ec600d6 4285
15e47304 4286 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4287 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4288 wdev->netdev, dst, next_hop,
bba95fef
JB		 4289 &pinfo) < 0)
4290 goto out;
2ec600d6 4291
bba95fef 4292 path_idx++;
2ec600d6 4293 }
2ec600d6 4294
2ec600d6 4295
bba95fef 4296 out:
97990a06 4297 cb->args[2] = path_idx;
bba95fef 4298 err = skb->len;
bba95fef 4299 out_err:
97990a06 4300 nl80211_finish_wdev_dump(dev);
bba95fef 4301 return err;
2ec600d6
LCC		 4302}
4303
4304static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4305{
4c476991 4306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4307 int err;
4c476991 4308 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4309 struct mpath_info pinfo;
4310 struct sk_buff *msg;
4311 u8 *dst = NULL;
4312 u8 next_hop[ETH_ALEN];
4313
4314 memset(&pinfo, 0, sizeof(pinfo));
4315
4316 if (!info->attrs[NL80211_ATTR_MAC])
4317 return -EINVAL;
4318
4319 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4320
4c476991
JB		 4321 if (!rdev->ops->get_mpath)
4322 return -EOPNOTSUPP;
2ec600d6 4323
4c476991
JB		 4324 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4325 return -EOPNOTSUPP;
eec60b03 4326
e35e4d28 4327 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4328 if (err)
4c476991 4329 return err;
2ec600d6 4330
fd2120ca 4331 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4332 if (!msg)
4c476991 4333 return -ENOMEM;
2ec600d6 4334
15e47304 4335 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4336 dev, dst, next_hop, &pinfo) < 0) {
4337 nlmsg_free(msg);
4338 return -ENOBUFS;
4339 }
3b85875a 4340
4c476991 4341 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4342}
4343
4344static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4345{
4c476991
JB		 4346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4347 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4348 u8 *dst = NULL;
4349 u8 *next_hop = NULL;
4350
4351 if (!info->attrs[NL80211_ATTR_MAC])
4352 return -EINVAL;
4353
4354 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4355 return -EINVAL;
4356
4357 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4358 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4359
4c476991
JB		 4360 if (!rdev->ops->change_mpath)
4361 return -EOPNOTSUPP;
35a8efe1 4362
4c476991
JB		 4363 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4364 return -EOPNOTSUPP;
2ec600d6 4365
e35e4d28 4366 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4367}
4c476991 4368
2ec600d6
LCC		 4369static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4370{
4c476991
JB		 4371 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4372 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4373 u8 *dst = NULL;
4374 u8 *next_hop = NULL;
4375
4376 if (!info->attrs[NL80211_ATTR_MAC])
4377 return -EINVAL;
4378
4379 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4380 return -EINVAL;
4381
4382 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4383 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4384
4c476991
JB		 4385 if (!rdev->ops->add_mpath)
4386 return -EOPNOTSUPP;
35a8efe1 4387
4c476991
JB		 4388 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4389 return -EOPNOTSUPP;
2ec600d6 4390
e35e4d28 4391 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4392}
4393
4394static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4395{
4c476991
JB		 4396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4397 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4398 u8 *dst = NULL;
4399
4400 if (info->attrs[NL80211_ATTR_MAC])
4401 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4402
4c476991
JB		 4403 if (!rdev->ops->del_mpath)
4404 return -EOPNOTSUPP;
3b85875a 4405
e35e4d28 4406 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4407}
4408
9f1ba906
JM		 4409static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4410{
4c476991
JB		 4411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4412 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4413 struct bss_parameters params;
4414
4415 memset(&params, 0, sizeof(params));
4416 /* default to not changing parameters */
4417 params.use_cts_prot = -1;
4418 params.use_short_preamble = -1;
4419 params.use_short_slot_time = -1;
fd8aaaf3 4420 params.ap_isolate = -1;
50b12f59 4421 params.ht_opmode = -1;
53cabad7
JB		 4422 params.p2p_ctwindow = -1;
4423 params.p2p_opp_ps = -1;
9f1ba906
JM		 4424
4425 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4426 params.use_cts_prot =
4427 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4428 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4429 params.use_short_preamble =
4430 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4431 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4432 params.use_short_slot_time =
4433 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4434 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4435 params.basic_rates =
4436 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4437 params.basic_rates_len =
4438 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4439 }
fd8aaaf3
FF		 4440 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4441 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4442 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4443 params.ht_opmode =
4444 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4445
53cabad7
JB		 4446 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4447 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4448 return -EINVAL;
4449 params.p2p_ctwindow =
4450 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4451 if (params.p2p_ctwindow < 0)
4452 return -EINVAL;
4453 if (params.p2p_ctwindow != 0 &&
4454 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4455 return -EINVAL;
4456 }
4457
4458 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4459 u8 tmp;
4460
4461 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4462 return -EINVAL;
4463 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4464 if (tmp > 1)
4465 return -EINVAL;
4466 params.p2p_opp_ps = tmp;
4467 if (params.p2p_opp_ps &&
4468 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4469 return -EINVAL;
4470 }
4471
4c476991
JB		 4472 if (!rdev->ops->change_bss)
4473 return -EOPNOTSUPP;
9f1ba906 4474
074ac8df 4475 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4476 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4477 return -EOPNOTSUPP;
3b85875a 4478
e35e4d28 4479 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4480}
4481
b54452b0 4482static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4483 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4484 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4485 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4486 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4487 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4488 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4489};
4490
4491static int parse_reg_rule(struct nlattr *tb[],
4492 struct ieee80211_reg_rule *reg_rule)
4493{
4494 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4495 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4496
4497 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4498 return -EINVAL;
4499 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4500 return -EINVAL;
4501 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4502 return -EINVAL;
4503 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4504 return -EINVAL;
4505 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4506 return -EINVAL;
4507
4508 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4509
4510 freq_range->start_freq_khz =
4511 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4512 freq_range->end_freq_khz =
4513 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4514 freq_range->max_bandwidth_khz =
4515 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4516
4517 power_rule->max_eirp =
4518 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4519
4520 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4521 power_rule->max_antenna_gain =
4522 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4523
4524 return 0;
4525}
4526
4527static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4528{
4529 int r;
4530 char *data = NULL;
57b5ce07 4531 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4532
80778f18
LR		 4533 /*
4534 * You should only get this when cfg80211 hasn't yet initialized
4535 * completely when built-in to the kernel right between the time
4536 * window between nl80211_init() and regulatory_init(), if that is
4537 * even possible.
4538 */
458f4f9e 4539 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4540 return -EINPROGRESS;
80778f18 4541
fe33eb39
LR		 4542 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4543 return -EINVAL;
b2e1b302
LR		 4544
4545 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4546
57b5ce07
LR		 4547 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4548 user_reg_hint_type =
4549 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4550 else
4551 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4552
4553 switch (user_reg_hint_type) {
4554 case NL80211_USER_REG_HINT_USER:
4555 case NL80211_USER_REG_HINT_CELL_BASE:
4556 break;
4557 default:
4558 return -EINVAL;
4559 }
4560
4561 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4562
b2e1b302
LR		 4563 return r;
4564}
4565
24bdd9f4 4566static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4567 struct genl_info *info)
93da9cc1 4568{
4c476991 4569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4570 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4571 struct wireless_dev *wdev = dev->ieee80211_ptr;
4572 struct mesh_config cur_params;
4573 int err = 0;
93da9cc1 4574 void *hdr;
4575 struct nlattr *pinfoattr;
4576 struct sk_buff *msg;
4577
29cbe68c
JB		 4578 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4579 return -EOPNOTSUPP;
4580
24bdd9f4 4581 if (!rdev->ops->get_mesh_config)
4c476991 4582 return -EOPNOTSUPP;
f3f92586 4583
29cbe68c
JB		 4584 wdev_lock(wdev);
4585 /* If not connected, get default parameters */
4586 if (!wdev->mesh_id_len)
4587 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4588 else
e35e4d28 4589 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4590 wdev_unlock(wdev);
4591
93da9cc1 4592 if (err)
4c476991 4593 return err;
93da9cc1 4594
4595 /* Draw up a netlink message to send back */
fd2120ca 4596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4597 if (!msg)
4598 return -ENOMEM;
15e47304 4599 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4600 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4601 if (!hdr)
efe1cf0c 4602 goto out;
24bdd9f4 4603 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4604 if (!pinfoattr)
4605 goto nla_put_failure;
9360ffd1
DM		 4606 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4607 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4608 cur_params.dot11MeshRetryTimeout) ||
4609 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4610 cur_params.dot11MeshConfirmTimeout) ||
4611 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4612 cur_params.dot11MeshHoldingTimeout) ||
4613 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4614 cur_params.dot11MeshMaxPeerLinks) ||
4615 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4616 cur_params.dot11MeshMaxRetries) ||
4617 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4618 cur_params.dot11MeshTTL) ||
4619 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4620 cur_params.element_ttl) ||
4621 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4622 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4623 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4624 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4625 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4626 cur_params.dot11MeshHWMPmaxPREQretries) ||
4627 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4628 cur_params.path_refresh_time) ||
4629 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4630 cur_params.min_discovery_timeout) ||
4631 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4632 cur_params.dot11MeshHWMPactivePathTimeout) ||
4633 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4634 cur_params.dot11MeshHWMPpreqMinInterval) ||
4635 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4636 cur_params.dot11MeshHWMPperrMinInterval) ||
4637 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4638 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4639 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4640 cur_params.dot11MeshHWMPRootMode) ||
4641 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4642 cur_params.dot11MeshHWMPRannInterval) ||
4643 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4644 cur_params.dot11MeshGateAnnouncementProtocol) ||
4645 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4646 cur_params.dot11MeshForwarding) ||
4647 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4648 cur_params.rssi_threshold) ||
4649 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4650 cur_params.ht_opmode) ||
4651 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4652 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4653 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4654 cur_params.dot11MeshHWMProotInterval) ||
4655 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4656 cur_params.dot11MeshHWMPconfirmationInterval) ||
4657 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4658 cur_params.power_mode) ||
4659 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4660 cur_params.dot11MeshAwakeWindowDuration) ||
4661 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4662 cur_params.plink_timeout))
9360ffd1 4663 goto nla_put_failure;
93da9cc1 4664 nla_nest_end(msg, pinfoattr);
4665 genlmsg_end(msg, hdr);
4c476991 4666 return genlmsg_reply(msg, info);
93da9cc1 4667
3b85875a 4668 nla_put_failure:
93da9cc1 4669 genlmsg_cancel(msg, hdr);
efe1cf0c 4670 out:
d080e275 4671 nlmsg_free(msg);
4c476991 4672 return -ENOBUFS;
93da9cc1 4673}
4674
b54452b0 4675static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4676 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4677 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4678 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4679 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4680 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4681 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4682 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4683 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4684 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4685 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4686 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4687 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4688 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4689 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4690 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4691 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4692 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4693 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4694 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4695 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4696 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4697 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4698 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4699 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4700 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4701 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4702 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4703 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4704};
4705
c80d545d
JC		 4706static const struct nla_policy
4707 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4708 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4709 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4710 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4711 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4712 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4713 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4714 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4715 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4716 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4717};
4718
24bdd9f4 4719static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4720 struct mesh_config *cfg,
4721 u32 *mask_out)
93da9cc1 4722{
93da9cc1 4723 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4724 u32 mask = 0;
93da9cc1 4725
ea54fba2
MP		 4726#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4727do { \
4728 if (tb[attr]) { \
4729 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4730 return -EINVAL; \
4731 cfg->param = fn(tb[attr]); \
4732 mask |= (1 << (attr - 1)); \
4733 } \
4734} while (0)
bd90fdcc
JB		 4735
4736
24bdd9f4 4737 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4738 return -EINVAL;
4739 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4740 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4741 nl80211_meshconf_params_policy))
93da9cc1 4742 return -EINVAL;
4743
93da9cc1 4744 /* This makes sure that there aren't more than 32 mesh config
4745 * parameters (otherwise our bitfield scheme would not work.) */
4746 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4747
4748 /* Fill in the params struct */
ea54fba2 4749 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4750 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4751 nla_get_u16);
ea54fba2 4752 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4753 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4754 nla_get_u16);
ea54fba2 4755 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4756 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4757 nla_get_u16);
ea54fba2 4758 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4759 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4760 nla_get_u16);
ea54fba2 4761 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4762 mask, NL80211_MESHCONF_MAX_RETRIES,
4763 nla_get_u8);
ea54fba2 4764 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4765 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4766 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4767 mask, NL80211_MESHCONF_ELEMENT_TTL,
4768 nla_get_u8);
ea54fba2 4769 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4770 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4771 nla_get_u8);
ea54fba2
MP		 4772 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4773 1, 255, mask,
a4f606ea
CYY		 4774 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4775 nla_get_u32);
ea54fba2 4776 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4777 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4778 nla_get_u8);
ea54fba2 4779 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4780 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4781 nla_get_u32);
ea54fba2 4782 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4783 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4784 nla_get_u16);
ea54fba2
MP		 4785 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4786 1, 65535, mask,
a4f606ea
CYY		 4787 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4788 nla_get_u32);
93da9cc1 4789 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4790 1, 65535, mask,
4791 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4792 nla_get_u16);
dca7e943 4793 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4794 1, 65535, mask,
4795 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4796 nla_get_u16);
93da9cc1 4797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4798 dot11MeshHWMPnetDiameterTraversalTime,
4799 1, 65535, mask,
a4f606ea
CYY		 4800 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4801 nla_get_u16);
ea54fba2
MP		 4802 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4803 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4804 nla_get_u8);
4805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4806 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4807 nla_get_u16);
63c5723b 4808 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4809 dot11MeshGateAnnouncementProtocol, 0, 1,
4810 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4811 nla_get_u8);
ea54fba2 4812 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4813 mask, NL80211_MESHCONF_FORWARDING,
4814 nla_get_u8);
ea54fba2 4815 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4816 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4817 nla_get_u32);
ea54fba2 4818 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4819 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4820 nla_get_u16);
4821 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4822 1, 65535, mask,
ac1073a6
CYY		 4823 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4824 nla_get_u32);
ea54fba2 4825 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4826 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4827 nla_get_u16);
4828 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4829 dot11MeshHWMPconfirmationInterval,
4830 1, 65535, mask,
728b19e5 4831 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4832 nla_get_u16);
3b1c5a53
MP		 4833 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4834 NL80211_MESH_POWER_ACTIVE,
4835 NL80211_MESH_POWER_MAX,
4836 mask, NL80211_MESHCONF_POWER_MODE,
4837 nla_get_u32);
4838 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4839 0, 65535, mask,
4840 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4841 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4842 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4843 nla_get_u32);
bd90fdcc
JB		 4844 if (mask_out)
4845 *mask_out = mask;
c80d545d 4846
bd90fdcc
JB		 4847 return 0;
4848
4849#undef FILL_IN_MESH_PARAM_IF_SET
4850}
4851
c80d545d
JC		 4852static int nl80211_parse_mesh_setup(struct genl_info *info,
4853 struct mesh_setup *setup)
4854{
bb2798d4 4855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4856 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4857
4858 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4859 return -EINVAL;
4860 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4861 info->attrs[NL80211_ATTR_MESH_SETUP],
4862 nl80211_mesh_setup_params_policy))
4863 return -EINVAL;
4864
d299a1f2
JC		 4865 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4866 setup->sync_method =
4867 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4868 IEEE80211_SYNC_METHOD_VENDOR :
4869 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4870
c80d545d
JC		 4871 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4872 setup->path_sel_proto =
4873 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4874 IEEE80211_PATH_PROTOCOL_VENDOR :
4875 IEEE80211_PATH_PROTOCOL_HWMP;
4876
4877 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4878 setup->path_metric =
4879 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4880 IEEE80211_PATH_METRIC_VENDOR :
4881 IEEE80211_PATH_METRIC_AIRTIME;
4882
581a8b0f
JC		 4883
4884 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4885 struct nlattr *ieattr =
581a8b0f 4886 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4887 if (!is_valid_ie_attr(ieattr))
4888 return -EINVAL;
581a8b0f
JC		 4889 setup->ie = nla_data(ieattr);
4890 setup->ie_len = nla_len(ieattr);
c80d545d 4891 }
bb2798d4
TP		 4892 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4893 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4894 return -EINVAL;
4895 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4896 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4897 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4898 if (setup->is_secure)
4899 setup->user_mpm = true;
c80d545d 4900
6e16d90b
CT		 4901 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4902 if (!setup->user_mpm)
4903 return -EINVAL;
4904 setup->auth_id =
4905 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4906 }
4907
c80d545d
JC		 4908 return 0;
4909}
4910
24bdd9f4 4911static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4912 struct genl_info *info)
bd90fdcc
JB		 4913{
4914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4915 struct net_device *dev = info->user_ptr[1];
29cbe68c 4916 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4917 struct mesh_config cfg;
4918 u32 mask;
4919 int err;
4920
29cbe68c
JB		 4921 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4922 return -EOPNOTSUPP;
4923
24bdd9f4 4924 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4925 return -EOPNOTSUPP;
4926
24bdd9f4 4927 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4928 if (err)
4929 return err;
4930
29cbe68c
JB		 4931 wdev_lock(wdev);
4932 if (!wdev->mesh_id_len)
4933 err = -ENOLINK;
4934
4935 if (!err)
e35e4d28 4936 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4937
4938 wdev_unlock(wdev);
4939
4940 return err;
93da9cc1 4941}
4942
f130347c
LR		 4943static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4944{
458f4f9e 4945 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4946 struct sk_buff *msg;
4947 void *hdr = NULL;
4948 struct nlattr *nl_reg_rules;
4949 unsigned int i;
f130347c
LR		 4950
4951 if (!cfg80211_regdomain)
5fe231e8 4952 return -EINVAL;
f130347c 4953
fd2120ca 4954 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 4955 if (!msg)
4956 return -ENOBUFS;
f130347c 4957
15e47304 4958 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4959 NL80211_CMD_GET_REG);
4960 if (!hdr)
efe1cf0c 4961 goto put_failure;
f130347c 4962
57b5ce07
LR		 4963 if (reg_last_request_cell_base() &&
4964 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4965 NL80211_USER_REG_HINT_CELL_BASE))
4966 goto nla_put_failure;
4967
458f4f9e
JB		 4968 rcu_read_lock();
4969 regdom = rcu_dereference(cfg80211_regdomain);
4970
4971 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4972 (regdom->dfs_region &&
4973 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4974 goto nla_put_failure_rcu;
4975
f130347c
LR		 4976 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4977 if (!nl_reg_rules)
458f4f9e 4978 goto nla_put_failure_rcu;
f130347c 4979
458f4f9e 4980 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4981 struct nlattr *nl_reg_rule;
4982 const struct ieee80211_reg_rule *reg_rule;
4983 const struct ieee80211_freq_range *freq_range;
4984 const struct ieee80211_power_rule *power_rule;
4985
458f4f9e 4986 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4987 freq_range = &reg_rule->freq_range;
4988 power_rule = &reg_rule->power_rule;
4989
4990 nl_reg_rule = nla_nest_start(msg, i);
4991 if (!nl_reg_rule)
458f4f9e 4992 goto nla_put_failure_rcu;
f130347c 4993
9360ffd1
DM		 4994 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4995 reg_rule->flags) ||
4996 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4997 freq_range->start_freq_khz) ||
4998 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4999 freq_range->end_freq_khz) ||
5000 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5001 freq_range->max_bandwidth_khz) ||
5002 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5003 power_rule->max_antenna_gain) ||
5004 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5005 power_rule->max_eirp))
458f4f9e 5006 goto nla_put_failure_rcu;
f130347c
LR		 5007
5008 nla_nest_end(msg, nl_reg_rule);
5009 }
458f4f9e 5010 rcu_read_unlock();
f130347c
LR		 5011
5012 nla_nest_end(msg, nl_reg_rules);
5013
5014 genlmsg_end(msg, hdr);
5fe231e8 5015 return genlmsg_reply(msg, info);
f130347c 5016
458f4f9e
JB		 5017nla_put_failure_rcu:
5018 rcu_read_unlock();
f130347c
LR		 5019nla_put_failure:
5020 genlmsg_cancel(msg, hdr);
efe1cf0c 5021put_failure:
d080e275 5022 nlmsg_free(msg);
5fe231e8 5023 return -EMSGSIZE;
f130347c
LR		 5024}
5025
b2e1b302
LR		 5026static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5027{
5028 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5029 struct nlattr *nl_reg_rule;
5030 char *alpha2 = NULL;
5031 int rem_reg_rules = 0, r = 0;
5032 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 5033 u8 dfs_region = 0;
b2e1b302
LR		 5034 struct ieee80211_regdomain *rd = NULL;
5035
5036 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5037 return -EINVAL;
5038
5039 if (!info->attrs[NL80211_ATTR_REG_RULES])
5040 return -EINVAL;
5041
5042 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5043
8b60b078
LR		 5044 if (info->attrs[NL80211_ATTR_DFS_REGION])
5045 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5046
b2e1b302 5047 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5048 rem_reg_rules) {
b2e1b302
LR		 5049 num_rules++;
5050 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5051 return -EINVAL;
b2e1b302
LR		 5052 }
5053
b2e1b302 5054 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5055 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5056
5057 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5058 if (!rd)
5059 return -ENOMEM;
b2e1b302
LR		 5060
5061 rd->n_reg_rules = num_rules;
5062 rd->alpha2[0] = alpha2[0];
5063 rd->alpha2[1] = alpha2[1];
5064
8b60b078
LR		 5065 /*
5066 * Disable DFS master mode if the DFS region was
5067 * not supported or known on this kernel.
5068 */
5069 if (reg_supported_dfs_region(dfs_region))
5070 rd->dfs_region = dfs_region;
5071
b2e1b302 5072 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5073 rem_reg_rules) {
b2e1b302 5074 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5075 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5076 reg_rule_policy);
b2e1b302
LR		 5077 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5078 if (r)
5079 goto bad_reg;
5080
5081 rule_idx++;
5082
d0e18f83
LR		 5083 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5084 r = -EINVAL;
b2e1b302 5085 goto bad_reg;
d0e18f83 5086 }
b2e1b302
LR		 5087 }
5088
b2e1b302 5089 r = set_regdom(rd);
6913b49a 5090 /* set_regdom took ownership */
1a919318 5091 rd = NULL;
b2e1b302 5092
d2372b31 5093 bad_reg:
b2e1b302 5094 kfree(rd);
d0e18f83 5095 return r;
b2e1b302
LR		 5096}
5097
83f5e2cf
JB		 5098static int validate_scan_freqs(struct nlattr *freqs)
5099{
5100 struct nlattr *attr1, *attr2;
5101 int n_channels = 0, tmp1, tmp2;
5102
5103 nla_for_each_nested(attr1, freqs, tmp1) {
5104 n_channels++;
5105 /*
5106 * Some hardware has a limited channel list for
5107 * scanning, and it is pretty much nonsensical
5108 * to scan for a channel twice, so disallow that
5109 * and don't require drivers to check that the
5110 * channel list they get isn't longer than what
5111 * they can scan, as long as they can scan all
5112 * the channels they registered at once.
5113 */
5114 nla_for_each_nested(attr2, freqs, tmp2)
5115 if (attr1 != attr2 &&
5116 nla_get_u32(attr1) == nla_get_u32(attr2))
5117 return 0;
5118 }
5119
5120 return n_channels;
5121}
5122
2a519311
JB		 5123static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5124{
4c476991 5125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5126 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5127 struct cfg80211_scan_request *request;
2a519311
JB		 5128 struct nlattr *attr;
5129 struct wiphy *wiphy;
83f5e2cf 5130 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5131 size_t ie_len;
2a519311 5132
f4a11bb0
JB		 5133 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5134 return -EINVAL;
5135
79c97e97 5136 wiphy = &rdev->wiphy;
2a519311 5137
4c476991
JB		 5138 if (!rdev->ops->scan)
5139 return -EOPNOTSUPP;
2a519311 5140
f9f47529
JB		 5141 if (rdev->scan_req) {
5142 err = -EBUSY;
5143 goto unlock;
5144 }
2a519311
JB		 5145
5146 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5147 n_channels = validate_scan_freqs(
5148 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5149 if (!n_channels) {
5150 err = -EINVAL;
5151 goto unlock;
5152 }
2a519311 5153 } else {
34850ab2 5154 enum ieee80211_band band;
83f5e2cf
JB		 5155 n_channels = 0;
5156
2a519311
JB		 5157 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5158 if (wiphy->bands[band])
5159 n_channels += wiphy->bands[band]->n_channels;
5160 }
5161
5162 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5163 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5164 n_ssids++;
5165
f9f47529
JB		 5166 if (n_ssids > wiphy->max_scan_ssids) {
5167 err = -EINVAL;
5168 goto unlock;
5169 }
2a519311 5170
70692ad2
JM		 5171 if (info->attrs[NL80211_ATTR_IE])
5172 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5173 else
5174 ie_len = 0;
5175
f9f47529
JB		 5176 if (ie_len > wiphy->max_scan_ie_len) {
5177 err = -EINVAL;
5178 goto unlock;
5179 }
18a83659 5180
2a519311 5181 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5182 + sizeof(*request->ssids) * n_ssids
5183 + sizeof(*request->channels) * n_channels
70692ad2 5184 + ie_len, GFP_KERNEL);
f9f47529
JB		 5185 if (!request) {
5186 err = -ENOMEM;
5187 goto unlock;
5188 }
2a519311 5189
2a519311 5190 if (n_ssids)
5ba63533 5191 request->ssids = (void *)&request->channels[n_channels];
2a519311 5192 request->n_ssids = n_ssids;
70692ad2
JM		 5193 if (ie_len) {
5194 if (request->ssids)
5195 request->ie = (void *)(request->ssids + n_ssids);
5196 else
5197 request->ie = (void *)(request->channels + n_channels);
5198 }
2a519311 5199
584991dc 5200 i = 0;
2a519311
JB		 5201 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5202 /* user specified, bail out if channel not found */
2a519311 5203 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5204 struct ieee80211_channel *chan;
5205
5206 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5207
5208 if (!chan) {
2a519311
JB		 5209 err = -EINVAL;
5210 goto out_free;
5211 }
584991dc
JB		 5212
5213 /* ignore disabled channels */
5214 if (chan->flags & IEEE80211_CHAN_DISABLED)
5215 continue;
5216
5217 request->channels[i] = chan;
2a519311
JB		 5218 i++;
5219 }
5220 } else {
34850ab2
JB		 5221 enum ieee80211_band band;
5222
2a519311 5223 /* all channels */
2a519311
JB		 5224 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5225 int j;
5226 if (!wiphy->bands[band])
5227 continue;
5228 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5229 struct ieee80211_channel *chan;
5230
5231 chan = &wiphy->bands[band]->channels[j];
5232
5233 if (chan->flags & IEEE80211_CHAN_DISABLED)
5234 continue;
5235
5236 request->channels[i] = chan;
2a519311
JB		 5237 i++;
5238 }
5239 }
5240 }
5241
584991dc
JB		 5242 if (!i) {
5243 err = -EINVAL;
5244 goto out_free;
5245 }
5246
5247 request->n_channels = i;
5248
2a519311
JB		 5249 i = 0;
5250 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5251 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5252 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5253 err = -EINVAL;
5254 goto out_free;
5255 }
57a27e1d 5256 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5257 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5258 i++;
5259 }
5260 }
5261
70692ad2
JM		 5262 if (info->attrs[NL80211_ATTR_IE]) {
5263 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5264 memcpy((void *)request->ie,
5265 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5266 request->ie_len);
5267 }
5268
34850ab2 5269 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5270 if (wiphy->bands[i])
5271 request->rates[i] =
5272 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5273
5274 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5275 nla_for_each_nested(attr,
5276 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5277 tmp) {
5278 enum ieee80211_band band = nla_type(attr);
5279
84404623 5280 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5281 err = -EINVAL;
5282 goto out_free;
5283 }
5284 err = ieee80211_get_ratemask(wiphy->bands[band],
5285 nla_data(attr),
5286 nla_len(attr),
5287 &request->rates[band]);
5288 if (err)
5289 goto out_free;
5290 }
5291 }
5292
46856bbf 5293 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5294 request->flags = nla_get_u32(
5295 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5296 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5297 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5298 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5299 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5300 err = -EOPNOTSUPP;
5301 goto out_free;
5302 }
5303 }
ed473771 5304
e9f935e3
RM		 5305 request->no_cck =
5306 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5307
fd014284 5308 request->wdev = wdev;
79c97e97 5309 request->wiphy = &rdev->wiphy;
15d6030b 5310 request->scan_start = jiffies;
2a519311 5311
79c97e97 5312 rdev->scan_req = request;
e35e4d28 5313 err = rdev_scan(rdev, request);
2a519311 5314
463d0183 5315 if (!err) {
fd014284
JB		 5316 nl80211_send_scan_start(rdev, wdev);
5317 if (wdev->netdev)
5318 dev_hold(wdev->netdev);
4c476991 5319 } else {
2a519311 5320 out_free:
79c97e97 5321 rdev->scan_req = NULL;
2a519311
JB		 5322 kfree(request);
5323 }
3b85875a 5324
f9f47529 5325 unlock:
2a519311
JB		 5326 return err;
5327}
5328
807f8a8c
LC		 5329static int nl80211_start_sched_scan(struct sk_buff *skb,
5330 struct genl_info *info)
5331{
5332 struct cfg80211_sched_scan_request *request;
5333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5334 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5335 struct nlattr *attr;
5336 struct wiphy *wiphy;
a1f1c21c 5337 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5338 u32 interval;
807f8a8c
LC		 5339 enum ieee80211_band band;
5340 size_t ie_len;
a1f1c21c 5341 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5342
5343 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5344 !rdev->ops->sched_scan_start)
5345 return -EOPNOTSUPP;
5346
5347 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5348 return -EINVAL;
5349
bbe6ad6d
LC		 5350 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5351 return -EINVAL;
5352
5353 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5354 if (interval == 0)
5355 return -EINVAL;
5356
807f8a8c
LC		 5357 wiphy = &rdev->wiphy;
5358
5359 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5360 n_channels = validate_scan_freqs(
5361 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5362 if (!n_channels)
5363 return -EINVAL;
5364 } else {
5365 n_channels = 0;
5366
5367 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5368 if (wiphy->bands[band])
5369 n_channels += wiphy->bands[band]->n_channels;
5370 }
5371
5372 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5373 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5374 tmp)
5375 n_ssids++;
5376
93b6aa69 5377 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5378 return -EINVAL;
5379
a1f1c21c
LC		 5380 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5381 nla_for_each_nested(attr,
5382 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5383 tmp)
5384 n_match_sets++;
5385
5386 if (n_match_sets > wiphy->max_match_sets)
5387 return -EINVAL;
5388
807f8a8c
LC		 5389 if (info->attrs[NL80211_ATTR_IE])
5390 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5391 else
5392 ie_len = 0;
5393
5a865bad 5394 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5395 return -EINVAL;
5396
c10841ca
LC		 5397 if (rdev->sched_scan_req) {
5398 err = -EINPROGRESS;
5399 goto out;
5400 }
5401
807f8a8c 5402 request = kzalloc(sizeof(*request)
a2cd43c5 5403 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5404 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5405 + sizeof(*request->channels) * n_channels
807f8a8c 5406 + ie_len, GFP_KERNEL);
c10841ca
LC		 5407 if (!request) {
5408 err = -ENOMEM;
5409 goto out;
5410 }
807f8a8c
LC		 5411
5412 if (n_ssids)
5413 request->ssids = (void *)&request->channels[n_channels];
5414 request->n_ssids = n_ssids;
5415 if (ie_len) {
5416 if (request->ssids)
5417 request->ie = (void *)(request->ssids + n_ssids);
5418 else
5419 request->ie = (void *)(request->channels + n_channels);
5420 }
5421
a1f1c21c
LC		 5422 if (n_match_sets) {
5423 if (request->ie)
5424 request->match_sets = (void *)(request->ie + ie_len);
5425 else if (request->ssids)
5426 request->match_sets =
5427 (void *)(request->ssids + n_ssids);
5428 else
5429 request->match_sets =
5430 (void *)(request->channels + n_channels);
5431 }
5432 request->n_match_sets = n_match_sets;
5433
807f8a8c
LC		 5434 i = 0;
5435 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5436 /* user specified, bail out if channel not found */
5437 nla_for_each_nested(attr,
5438 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5439 tmp) {
5440 struct ieee80211_channel *chan;
5441
5442 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5443
5444 if (!chan) {
5445 err = -EINVAL;
5446 goto out_free;
5447 }
5448
5449 /* ignore disabled channels */
5450 if (chan->flags & IEEE80211_CHAN_DISABLED)
5451 continue;
5452
5453 request->channels[i] = chan;
5454 i++;
5455 }
5456 } else {
5457 /* all channels */
5458 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5459 int j;
5460 if (!wiphy->bands[band])
5461 continue;
5462 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5463 struct ieee80211_channel *chan;
5464
5465 chan = &wiphy->bands[band]->channels[j];
5466
5467 if (chan->flags & IEEE80211_CHAN_DISABLED)
5468 continue;
5469
5470 request->channels[i] = chan;
5471 i++;
5472 }
5473 }
5474 }
5475
5476 if (!i) {
5477 err = -EINVAL;
5478 goto out_free;
5479 }
5480
5481 request->n_channels = i;
5482
5483 i = 0;
5484 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5485 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5486 tmp) {
57a27e1d 5487 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5488 err = -EINVAL;
5489 goto out_free;
5490 }
57a27e1d 5491 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5492 memcpy(request->ssids[i].ssid, nla_data(attr),
5493 nla_len(attr));
807f8a8c
LC		 5494 i++;
5495 }
5496 }
5497
a1f1c21c
LC		 5498 i = 0;
5499 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5500 nla_for_each_nested(attr,
5501 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5502 tmp) {
88e920b4 5503 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5504
5505 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5506 nla_data(attr), nla_len(attr),
5507 nl80211_match_policy);
4a4ab0d7 5508 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5509 if (ssid) {
5510 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5511 err = -EINVAL;
5512 goto out_free;
5513 }
5514 memcpy(request->match_sets[i].ssid.ssid,
5515 nla_data(ssid), nla_len(ssid));
5516 request->match_sets[i].ssid.ssid_len =
5517 nla_len(ssid);
5518 }
88e920b4
TP		 5519 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5520 if (rssi)
5521 request->rssi_thold = nla_get_u32(rssi);
5522 else
5523 request->rssi_thold =
5524 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5525 i++;
5526 }
5527 }
5528
807f8a8c
LC		 5529 if (info->attrs[NL80211_ATTR_IE]) {
5530 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5531 memcpy((void *)request->ie,
5532 nla_data(info->attrs[NL80211_ATTR_IE]),
5533 request->ie_len);
5534 }
5535
46856bbf 5536 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5537 request->flags = nla_get_u32(
5538 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5539 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5540 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5541 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5542 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5543 err = -EOPNOTSUPP;
5544 goto out_free;
5545 }
5546 }
ed473771 5547
807f8a8c
LC		 5548 request->dev = dev;
5549 request->wiphy = &rdev->wiphy;
bbe6ad6d 5550 request->interval = interval;
15d6030b 5551 request->scan_start = jiffies;
807f8a8c 5552
e35e4d28 5553 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5554 if (!err) {
5555 rdev->sched_scan_req = request;
5556 nl80211_send_sched_scan(rdev, dev,
5557 NL80211_CMD_START_SCHED_SCAN);
5558 goto out;
5559 }
5560
5561out_free:
5562 kfree(request);
5563out:
5564 return err;
5565}
5566
5567static int nl80211_stop_sched_scan(struct sk_buff *skb,
5568 struct genl_info *info)
5569{
5570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5571
5572 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5573 !rdev->ops->sched_scan_stop)
5574 return -EOPNOTSUPP;
5575
5fe231e8 5576 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5577}
5578
04f39047
SW		 5579static int nl80211_start_radar_detection(struct sk_buff *skb,
5580 struct genl_info *info)
5581{
5582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5583 struct net_device *dev = info->user_ptr[1];
5584 struct wireless_dev *wdev = dev->ieee80211_ptr;
5585 struct cfg80211_chan_def chandef;
5586 int err;
5587
5588 err = nl80211_parse_chandef(rdev, info, &chandef);
5589 if (err)
5590 return err;
5591
5592 if (wdev->cac_started)
5593 return -EBUSY;
5594
5595 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5596 if (err < 0)
5597 return err;
5598
5599 if (err == 0)
5600 return -EINVAL;
5601
5602 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5603 return -EINVAL;
5604
5605 if (!rdev->ops->start_radar_detection)
5606 return -EOPNOTSUPP;
5607
04f39047
SW		 5608 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5609 chandef.chan, CHAN_MODE_SHARED,
5610 BIT(chandef.width));
5611 if (err)
5fe231e8 5612 return err;
04f39047
SW		 5613
5614 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5615 if (!err) {
5616 wdev->channel = chandef.chan;
5617 wdev->cac_started = true;
5618 wdev->cac_start_time = jiffies;
5619 }
04f39047
SW		 5620 return err;
5621}
5622
16ef1fe2
SW		 5623static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5624{
5625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5626 struct net_device *dev = info->user_ptr[1];
5627 struct wireless_dev *wdev = dev->ieee80211_ptr;
5628 struct cfg80211_csa_settings params;
5629 /* csa_attrs is defined static to avoid waste of stack size - this
5630 * function is called under RTNL lock, so this should not be a problem.
5631 */
5632 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5633 u8 radar_detect_width = 0;
5634 int err;
5635
5636 if (!rdev->ops->channel_switch ||
5637 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5638 return -EOPNOTSUPP;
5639
5640 /* may add IBSS support later */
5641 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5642 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5643 return -EOPNOTSUPP;
5644
5645 memset(&params, 0, sizeof(params));
5646
5647 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5648 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5649 return -EINVAL;
5650
5651 /* only important for AP, IBSS and mesh create IEs internally */
5652 if (!info->attrs[NL80211_ATTR_CSA_IES])
5653 return -EINVAL;
5654
5655 /* useless if AP is not running */
5656 if (!wdev->beacon_interval)
5657 return -EINVAL;
5658
5659 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5660
5661 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5662 if (err)
5663 return err;
5664
5665 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5666 info->attrs[NL80211_ATTR_CSA_IES],
5667 nl80211_policy);
5668 if (err)
5669 return err;
5670
5671 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5672 if (err)
5673 return err;
5674
5675 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5676 return -EINVAL;
5677
5678 params.counter_offset_beacon =
5679 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5680 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5681 return -EINVAL;
5682
5683 /* sanity check - counters should be the same */
5684 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5685 params.count)
5686 return -EINVAL;
5687
5688 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5689 params.counter_offset_presp =
5690 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5691 if (params.counter_offset_presp >=
5692 params.beacon_csa.probe_resp_len)
5693 return -EINVAL;
5694
5695 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5696 params.count)
5697 return -EINVAL;
5698 }
5699
5700 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5701 if (err)
5702 return err;
5703
5704 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
5705 return -EINVAL;
5706
5707 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
5708 if (err < 0) {
5709 return err;
5710 } else if (err) {
5711 radar_detect_width = BIT(params.chandef.width);
5712 params.radar_required = true;
5713 }
5714
5715 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5716 params.chandef.chan,
5717 CHAN_MODE_SHARED,
5718 radar_detect_width);
5719 if (err)
5720 return err;
5721
5722 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5723 params.block_tx = true;
5724
5725 return rdev_channel_switch(rdev, dev, &params);
5726}
5727
9720bb3a
JB		 5728static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5729 u32 seq, int flags,
2a519311 5730 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5731 struct wireless_dev *wdev,
5732 struct cfg80211_internal_bss *intbss)
2a519311 5733{
48ab905d 5734 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5735 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5736 void *hdr;
5737 struct nlattr *bss;
8cef2c9d 5738 bool tsf = false;
48ab905d
JB		 5739
5740 ASSERT_WDEV_LOCK(wdev);
2a519311 5741
15e47304 5742 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5743 NL80211_CMD_NEW_SCAN_RESULTS);
5744 if (!hdr)
5745 return -1;
5746
9720bb3a
JB		 5747 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5748
97990a06
JB		 5749 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5750 goto nla_put_failure;
5751 if (wdev->netdev &&
9360ffd1
DM		 5752 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5753 goto nla_put_failure;
97990a06
JB		 5754 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5755 goto nla_put_failure;
2a519311
JB		 5756
5757 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5758 if (!bss)
5759 goto nla_put_failure;
9360ffd1 5760 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5761 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5762 goto nla_put_failure;
9caf0364
JB		 5763
5764 rcu_read_lock();
5765 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5766 if (ies) {
5767 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5768 goto fail_unlock_rcu;
5769 tsf = true;
5770 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5771 ies->len, ies->data))
5772 goto fail_unlock_rcu;
9caf0364
JB		 5773 }
5774 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5775 if (ies) {
5776 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5777 goto fail_unlock_rcu;
5778 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5779 ies->len, ies->data))
5780 goto fail_unlock_rcu;
9caf0364
JB		 5781 }
5782 rcu_read_unlock();
5783
9360ffd1
DM		 5784 if (res->beacon_interval &&
5785 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5786 goto nla_put_failure;
5787 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5788 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 5789 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 5790 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5791 jiffies_to_msecs(jiffies - intbss->ts)))
5792 goto nla_put_failure;
2a519311 5793
77965c97 5794 switch (rdev->wiphy.signal_type) {
2a519311 5795 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5796 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5797 goto nla_put_failure;
2a519311
JB		 5798 break;
5799 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5800 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5801 goto nla_put_failure;
2a519311
JB		 5802 break;
5803 default:
5804 break;
5805 }
5806
48ab905d 5807 switch (wdev->iftype) {
074ac8df 5808 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5809 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5810 if (intbss == wdev->current_bss &&
5811 nla_put_u32(msg, NL80211_BSS_STATUS,
5812 NL80211_BSS_STATUS_ASSOCIATED))
5813 goto nla_put_failure;
48ab905d
JB		 5814 break;
5815 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5816 if (intbss == wdev->current_bss &&
5817 nla_put_u32(msg, NL80211_BSS_STATUS,
5818 NL80211_BSS_STATUS_IBSS_JOINED))
5819 goto nla_put_failure;
48ab905d
JB		 5820 break;
5821 default:
5822 break;
5823 }
5824
2a519311
JB		 5825 nla_nest_end(msg, bss);
5826
5827 return genlmsg_end(msg, hdr);
5828
8cef2c9d
JB		 5829 fail_unlock_rcu:
5830 rcu_read_unlock();
2a519311
JB		 5831 nla_put_failure:
5832 genlmsg_cancel(msg, hdr);
5833 return -EMSGSIZE;
5834}
5835
97990a06 5836static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5837{
48ab905d 5838 struct cfg80211_registered_device *rdev;
2a519311 5839 struct cfg80211_internal_bss *scan;
48ab905d 5840 struct wireless_dev *wdev;
97990a06 5841 int start = cb->args[2], idx = 0;
2a519311
JB		 5842 int err;
5843
97990a06 5844 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5845 if (err)
5846 return err;
2a519311 5847
48ab905d
JB		 5848 wdev_lock(wdev);
5849 spin_lock_bh(&rdev->bss_lock);
5850 cfg80211_bss_expire(rdev);
5851
9720bb3a
JB		 5852 cb->seq = rdev->bss_generation;
5853
48ab905d 5854 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5855 if (++idx <= start)
5856 continue;
9720bb3a 5857 if (nl80211_send_bss(skb, cb,
2a519311 5858 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5859 rdev, wdev, scan) < 0) {
2a519311 5860 idx--;
67748893 5861 break;
2a519311
JB		 5862 }
5863 }
5864
48ab905d
JB		 5865 spin_unlock_bh(&rdev->bss_lock);
5866 wdev_unlock(wdev);
2a519311 5867
97990a06
JB		 5868 cb->args[2] = idx;
5869 nl80211_finish_wdev_dump(rdev);
2a519311 5870
67748893 5871 return skb->len;
2a519311
JB		 5872}
5873
15e47304 5874static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5875 int flags, struct net_device *dev,
5876 struct survey_info *survey)
5877{
5878 void *hdr;
5879 struct nlattr *infoattr;
5880
15e47304 5881 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5882 NL80211_CMD_NEW_SURVEY_RESULTS);
5883 if (!hdr)
5884 return -ENOMEM;
5885
9360ffd1
DM		 5886 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5887 goto nla_put_failure;
61fa713c
HS		 5888
5889 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5890 if (!infoattr)
5891 goto nla_put_failure;
5892
9360ffd1
DM		 5893 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5894 survey->channel->center_freq))
5895 goto nla_put_failure;
5896
5897 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5898 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5899 goto nla_put_failure;
5900 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5901 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5902 goto nla_put_failure;
5903 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5904 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5905 survey->channel_time))
5906 goto nla_put_failure;
5907 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5908 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5909 survey->channel_time_busy))
5910 goto nla_put_failure;
5911 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5912 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5913 survey->channel_time_ext_busy))
5914 goto nla_put_failure;
5915 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5916 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5917 survey->channel_time_rx))
5918 goto nla_put_failure;
5919 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5920 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5921 survey->channel_time_tx))
5922 goto nla_put_failure;
61fa713c
HS		 5923
5924 nla_nest_end(msg, infoattr);
5925
5926 return genlmsg_end(msg, hdr);
5927
5928 nla_put_failure:
5929 genlmsg_cancel(msg, hdr);
5930 return -EMSGSIZE;
5931}
5932
5933static int nl80211_dump_survey(struct sk_buff *skb,
5934 struct netlink_callback *cb)
5935{
5936 struct survey_info survey;
5937 struct cfg80211_registered_device *dev;
97990a06
JB		 5938 struct wireless_dev *wdev;
5939 int survey_idx = cb->args[2];
61fa713c
HS		 5940 int res;
5941
97990a06 5942 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5943 if (res)
5944 return res;
61fa713c 5945
97990a06
JB		 5946 if (!wdev->netdev) {
5947 res = -EINVAL;
5948 goto out_err;
5949 }
5950
61fa713c
HS		 5951 if (!dev->ops->dump_survey) {
5952 res = -EOPNOTSUPP;
5953 goto out_err;
5954 }
5955
5956 while (1) {
180cdc79
LR		 5957 struct ieee80211_channel *chan;
5958
97990a06 5959 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5960 if (res == -ENOENT)
5961 break;
5962 if (res)
5963 goto out_err;
5964
180cdc79
LR		 5965 /* Survey without a channel doesn't make sense */
5966 if (!survey.channel) {
5967 res = -EINVAL;
5968 goto out;
5969 }
5970
5971 chan = ieee80211_get_channel(&dev->wiphy,
5972 survey.channel->center_freq);
5973 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5974 survey_idx++;
5975 continue;
5976 }
5977
61fa713c 5978 if (nl80211_send_survey(skb,
15e47304 5979 NETLINK_CB(cb->skb).portid,
61fa713c 5980 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5981 wdev->netdev, &survey) < 0)
61fa713c
HS		 5982 goto out;
5983 survey_idx++;
5984 }
5985
5986 out:
97990a06 5987 cb->args[2] = survey_idx;
61fa713c
HS		 5988 res = skb->len;
5989 out_err:
97990a06 5990 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5991 return res;
5992}
5993
b23aa676
SO		 5994static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5995{
5996 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5997 NL80211_WPA_VERSION_2));
5998}
5999
636a5d36
JM		 6000static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6001{
4c476991
JB		 6002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6003 struct net_device *dev = info->user_ptr[1];
19957bb3 6004 struct ieee80211_channel *chan;
e39e5b5e
JM		 6005 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6006 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6007 enum nl80211_auth_type auth_type;
fffd0934 6008 struct key_parse key;
d5cdfacb 6009 bool local_state_change;
636a5d36 6010
f4a11bb0
JB		 6011 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6012 return -EINVAL;
6013
6014 if (!info->attrs[NL80211_ATTR_MAC])
6015 return -EINVAL;
6016
1778092e
JM		 6017 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6018 return -EINVAL;
6019
19957bb3
JB		 6020 if (!info->attrs[NL80211_ATTR_SSID])
6021 return -EINVAL;
6022
6023 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6024 return -EINVAL;
6025
fffd0934
JB		 6026 err = nl80211_parse_key(info, &key);
6027 if (err)
6028 return err;
6029
6030 if (key.idx >= 0) {
e31b8213
JB		 6031 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6032 return -EINVAL;
fffd0934
JB		 6033 if (!key.p.key || !key.p.key_len)
6034 return -EINVAL;
6035 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6036 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6037 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6038 key.p.key_len != WLAN_KEY_LEN_WEP104))
6039 return -EINVAL;
6040 if (key.idx > 4)
6041 return -EINVAL;
6042 } else {
6043 key.p.key_len = 0;
6044 key.p.key = NULL;
6045 }
6046
afea0b7a
JB		 6047 if (key.idx >= 0) {
6048 int i;
6049 bool ok = false;
6050 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6051 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6052 ok = true;
6053 break;
6054 }
6055 }
4c476991
JB		 6056 if (!ok)
6057 return -EINVAL;
afea0b7a
JB		 6058 }
6059
4c476991
JB		 6060 if (!rdev->ops->auth)
6061 return -EOPNOTSUPP;
636a5d36 6062
074ac8df 6063 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6064 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6065 return -EOPNOTSUPP;
eec60b03 6066
19957bb3 6067 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 6068 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 6069 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6070 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6071 return -EINVAL;
636a5d36 6072
19957bb3
JB		 6073 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6074 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6075
6076 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6077 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6078 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6079 }
6080
19957bb3 6081 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6082 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6083 return -EINVAL;
636a5d36 6084
e39e5b5e
JM		 6085 if (auth_type == NL80211_AUTHTYPE_SAE &&
6086 !info->attrs[NL80211_ATTR_SAE_DATA])
6087 return -EINVAL;
6088
6089 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6090 if (auth_type != NL80211_AUTHTYPE_SAE)
6091 return -EINVAL;
6092 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6093 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6094 /* need to include at least Auth Transaction and Status Code */
6095 if (sae_data_len < 4)
6096 return -EINVAL;
6097 }
6098
d5cdfacb
JM		 6099 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6100
95de817b
JB		 6101 /*
6102 * Since we no longer track auth state, ignore
6103 * requests to only change local state.
6104 */
6105 if (local_state_change)
6106 return 0;
6107
91bf9b26
JB		 6108 wdev_lock(dev->ieee80211_ptr);
6109 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6110 ssid, ssid_len, ie, ie_len,
6111 key.p.key, key.p.key_len, key.idx,
6112 sae_data, sae_data_len);
6113 wdev_unlock(dev->ieee80211_ptr);
6114 return err;
636a5d36
JM		 6115}
6116
c0692b8f
JB		 6117static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6118 struct genl_info *info,
3dc27d25
JB		 6119 struct cfg80211_crypto_settings *settings,
6120 int cipher_limit)
b23aa676 6121{
c0b2bbd8
JB		 6122 memset(settings, 0, sizeof(*settings));
6123
b23aa676
SO		 6124 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6125
c0692b8f
JB		 6126 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6127 u16 proto;
6128 proto = nla_get_u16(
6129 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6130 settings->control_port_ethertype = cpu_to_be16(proto);
6131 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6132 proto != ETH_P_PAE)
6133 return -EINVAL;
6134 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6135 settings->control_port_no_encrypt = true;
6136 } else
6137 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6138
b23aa676
SO		 6139 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6140 void *data;
6141 int len, i;
6142
6143 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6144 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6145 settings->n_ciphers_pairwise = len / sizeof(u32);
6146
6147 if (len % sizeof(u32))
6148 return -EINVAL;
6149
3dc27d25 6150 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6151 return -EINVAL;
6152
6153 memcpy(settings->ciphers_pairwise, data, len);
6154
6155 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6156 if (!cfg80211_supported_cipher_suite(
6157 &rdev->wiphy,
b23aa676
SO		 6158 settings->ciphers_pairwise[i]))
6159 return -EINVAL;
6160 }
6161
6162 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6163 settings->cipher_group =
6164 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6165 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6166 settings->cipher_group))
b23aa676
SO		 6167 return -EINVAL;
6168 }
6169
6170 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6171 settings->wpa_versions =
6172 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6173 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6174 return -EINVAL;
6175 }
6176
6177 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6178 void *data;
6d30240e 6179 int len;
b23aa676
SO		 6180
6181 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6182 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6183 settings->n_akm_suites = len / sizeof(u32);
6184
6185 if (len % sizeof(u32))
6186 return -EINVAL;
6187
1b9ca027
JM		 6188 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6189 return -EINVAL;
6190
b23aa676 6191 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6192 }
6193
6194 return 0;
6195}
6196
636a5d36
JM		 6197static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6198{
4c476991
JB		 6199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6200 struct net_device *dev = info->user_ptr[1];
f444de05 6201 struct ieee80211_channel *chan;
f62fab73
JB		 6202 struct cfg80211_assoc_request req = {};
6203 const u8 *bssid, *ssid;
6204 int err, ssid_len = 0;
636a5d36 6205
f4a11bb0
JB		 6206 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6207 return -EINVAL;
6208
6209 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6210 !info->attrs[NL80211_ATTR_SSID] ||
6211 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6212 return -EINVAL;
6213
4c476991
JB		 6214 if (!rdev->ops->assoc)
6215 return -EOPNOTSUPP;
636a5d36 6216
074ac8df 6217 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6218 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6219 return -EOPNOTSUPP;
eec60b03 6220
19957bb3 6221 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6222
19957bb3
JB		 6223 chan = ieee80211_get_channel(&rdev->wiphy,
6224 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6225 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6226 return -EINVAL;
636a5d36 6227
19957bb3
JB		 6228 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6229 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6230
6231 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6232 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6233 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6234 }
6235
dc6382ce 6236 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6237 enum nl80211_mfp mfp =
dc6382ce 6238 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6239 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6240 req.use_mfp = true;
4c476991
JB		 6241 else if (mfp != NL80211_MFP_NO)
6242 return -EINVAL;
dc6382ce
JM		 6243 }
6244
3e5d7649 6245 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6246 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6247
7e7c8926 6248 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6249 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6250
6251 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6252 memcpy(&req.ht_capa_mask,
6253 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6254 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6255
6256 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6257 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6258 return -EINVAL;
f62fab73
JB		 6259 memcpy(&req.ht_capa,
6260 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6261 sizeof(req.ht_capa));
7e7c8926
BG		 6262 }
6263
ee2aca34 6264 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6265 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6266
6267 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6268 memcpy(&req.vht_capa_mask,
6269 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6270 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6271
6272 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6273 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6274 return -EINVAL;
f62fab73
JB		 6275 memcpy(&req.vht_capa,
6276 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6277 sizeof(req.vht_capa));
ee2aca34
JB		 6278 }
6279
f62fab73 6280 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6281 if (!err) {
6282 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6283 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6284 ssid, ssid_len, &req);
91bf9b26
JB		 6285 wdev_unlock(dev->ieee80211_ptr);
6286 }
636a5d36 6287
636a5d36
JM		 6288 return err;
6289}
6290
6291static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6292{
4c476991
JB		 6293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6294 struct net_device *dev = info->user_ptr[1];
19957bb3 6295 const u8 *ie = NULL, *bssid;
91bf9b26 6296 int ie_len = 0, err;
19957bb3 6297 u16 reason_code;
d5cdfacb 6298 bool local_state_change;
636a5d36 6299
f4a11bb0
JB		 6300 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6301 return -EINVAL;
6302
6303 if (!info->attrs[NL80211_ATTR_MAC])
6304 return -EINVAL;
6305
6306 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6307 return -EINVAL;
6308
4c476991
JB		 6309 if (!rdev->ops->deauth)
6310 return -EOPNOTSUPP;
636a5d36 6311
074ac8df 6312 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6313 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6314 return -EOPNOTSUPP;
eec60b03 6315
19957bb3 6316 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6317
19957bb3
JB		 6318 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6319 if (reason_code == 0) {
f4a11bb0 6320 /* Reason Code 0 is reserved */
4c476991 6321 return -EINVAL;
255e737e 6322 }
636a5d36
JM		 6323
6324 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6325 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6326 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6327 }
6328
d5cdfacb
JM		 6329 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6330
91bf9b26
JB		 6331 wdev_lock(dev->ieee80211_ptr);
6332 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6333 local_state_change);
6334 wdev_unlock(dev->ieee80211_ptr);
6335 return err;
636a5d36
JM		 6336}
6337
6338static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6339{
4c476991
JB		 6340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6341 struct net_device *dev = info->user_ptr[1];
19957bb3 6342 const u8 *ie = NULL, *bssid;
91bf9b26 6343 int ie_len = 0, err;
19957bb3 6344 u16 reason_code;
d5cdfacb 6345 bool local_state_change;
636a5d36 6346
f4a11bb0
JB		 6347 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6348 return -EINVAL;
6349
6350 if (!info->attrs[NL80211_ATTR_MAC])
6351 return -EINVAL;
6352
6353 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6354 return -EINVAL;
6355
4c476991
JB		 6356 if (!rdev->ops->disassoc)
6357 return -EOPNOTSUPP;
636a5d36 6358
074ac8df 6359 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6360 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6361 return -EOPNOTSUPP;
eec60b03 6362
19957bb3 6363 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6364
19957bb3
JB		 6365 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6366 if (reason_code == 0) {
f4a11bb0 6367 /* Reason Code 0 is reserved */
4c476991 6368 return -EINVAL;
255e737e 6369 }
636a5d36
JM		 6370
6371 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6372 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6373 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6374 }
6375
d5cdfacb
JM		 6376 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6377
91bf9b26
JB		 6378 wdev_lock(dev->ieee80211_ptr);
6379 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6380 local_state_change);
6381 wdev_unlock(dev->ieee80211_ptr);
6382 return err;
636a5d36
JM		 6383}
6384
dd5b4cc7
FF		 6385static bool
6386nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6387 int mcast_rate[IEEE80211_NUM_BANDS],
6388 int rateval)
6389{
6390 struct wiphy *wiphy = &rdev->wiphy;
6391 bool found = false;
6392 int band, i;
6393
6394 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6395 struct ieee80211_supported_band *sband;
6396
6397 sband = wiphy->bands[band];
6398 if (!sband)
6399 continue;
6400
6401 for (i = 0; i < sband->n_bitrates; i++) {
6402 if (sband->bitrates[i].bitrate == rateval) {
6403 mcast_rate[band] = i + 1;
6404 found = true;
6405 break;
6406 }
6407 }
6408 }
6409
6410 return found;
6411}
6412
04a773ad
JB		 6413static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6414{
4c476991
JB		 6415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6416 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6417 struct cfg80211_ibss_params ibss;
6418 struct wiphy *wiphy;
fffd0934 6419 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6420 int err;
6421
8e30bc55
JB		 6422 memset(&ibss, 0, sizeof(ibss));
6423
04a773ad
JB		 6424 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6425 return -EINVAL;
6426
683b6d3b 6427 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6428 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6429 return -EINVAL;
6430
8e30bc55
JB		 6431 ibss.beacon_interval = 100;
6432
6433 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6434 ibss.beacon_interval =
6435 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6436 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6437 return -EINVAL;
6438 }
6439
4c476991
JB		 6440 if (!rdev->ops->join_ibss)
6441 return -EOPNOTSUPP;
04a773ad 6442
4c476991
JB		 6443 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6444 return -EOPNOTSUPP;
04a773ad 6445
79c97e97 6446 wiphy = &rdev->wiphy;
04a773ad 6447
39193498 6448 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6449 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6450
6451 if (!is_valid_ether_addr(ibss.bssid))
6452 return -EINVAL;
6453 }
04a773ad
JB		 6454 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6455 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6456
6457 if (info->attrs[NL80211_ATTR_IE]) {
6458 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6459 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6460 }
6461
683b6d3b
JB		 6462 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6463 if (err)
6464 return err;
04a773ad 6465
683b6d3b 6466 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6467 return -EINVAL;
6468
2f301ab2 6469 switch (ibss.chandef.width) {
bf372645
SW		 6470 case NL80211_CHAN_WIDTH_5:
6471 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6472 case NL80211_CHAN_WIDTH_20_NOHT:
6473 break;
6474 case NL80211_CHAN_WIDTH_20:
6475 case NL80211_CHAN_WIDTH_40:
6476 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6477 break;
6478 default:
c04d6150 6479 return -EINVAL;
2f301ab2 6480 }
db9c64cf 6481
04a773ad 6482 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6483 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6484
fbd2c8dc
TP		 6485 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6486 u8 *rates =
6487 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6488 int n_rates =
6489 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6490 struct ieee80211_supported_band *sband =
683b6d3b 6491 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6492
34850ab2
JB		 6493 err = ieee80211_get_ratemask(sband, rates, n_rates,
6494 &ibss.basic_rates);
6495 if (err)
6496 return err;
fbd2c8dc 6497 }
dd5b4cc7 6498
803768f5
SW		 6499 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6500 memcpy(&ibss.ht_capa_mask,
6501 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6502 sizeof(ibss.ht_capa_mask));
6503
6504 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6505 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6506 return -EINVAL;
6507 memcpy(&ibss.ht_capa,
6508 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6509 sizeof(ibss.ht_capa));
6510 }
6511
dd5b4cc7
FF		 6512 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6513 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6514 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6515 return -EINVAL;
fbd2c8dc 6516
4c476991 6517 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6518 bool no_ht = false;
6519
4c476991 6520 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6521 info->attrs[NL80211_ATTR_KEYS],
6522 &no_ht);
4c476991
JB		 6523 if (IS_ERR(connkeys))
6524 return PTR_ERR(connkeys);
de7044ee 6525
3d9d1d66
JB		 6526 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6527 no_ht) {
de7044ee
SM		 6528 kfree(connkeys);
6529 return -EINVAL;
6530 }
4c476991 6531 }
04a773ad 6532
267335d6
AQ		 6533 ibss.control_port =
6534 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6535
4c476991 6536 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6537 if (err)
6538 kfree(connkeys);
04a773ad
JB		 6539 return err;
6540}
6541
6542static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6543{
4c476991
JB		 6544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6545 struct net_device *dev = info->user_ptr[1];
04a773ad 6546
4c476991
JB		 6547 if (!rdev->ops->leave_ibss)
6548 return -EOPNOTSUPP;
04a773ad 6549
4c476991
JB		 6550 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6551 return -EOPNOTSUPP;
04a773ad 6552
4c476991 6553 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6554}
6555
f4e583c8
AQ		 6556static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6557{
6558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6559 struct net_device *dev = info->user_ptr[1];
6560 int mcast_rate[IEEE80211_NUM_BANDS];
6561 u32 nla_rate;
6562 int err;
6563
6564 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6565 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6566 return -EOPNOTSUPP;
6567
6568 if (!rdev->ops->set_mcast_rate)
6569 return -EOPNOTSUPP;
6570
6571 memset(mcast_rate, 0, sizeof(mcast_rate));
6572
6573 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6574 return -EINVAL;
6575
6576 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6577 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6578 return -EINVAL;
6579
6580 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6581
6582 return err;
6583}
6584
6585
aff89a9b
JB		 6586#ifdef CONFIG_NL80211_TESTMODE
6587static struct genl_multicast_group nl80211_testmode_mcgrp = {
6588 .name = "testmode",
6589};
6590
6591static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6592{
4c476991 6593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6594 int err;
6595
6596 if (!info->attrs[NL80211_ATTR_TESTDATA])
6597 return -EINVAL;
6598
aff89a9b
JB		 6599 err = -EOPNOTSUPP;
6600 if (rdev->ops->testmode_cmd) {
6601 rdev->testmode_info = info;
e35e4d28 6602 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6603 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6604 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6605 rdev->testmode_info = NULL;
6606 }
6607
aff89a9b
JB		 6608 return err;
6609}
6610
71063f0e
WYG		 6611static int nl80211_testmode_dump(struct sk_buff *skb,
6612 struct netlink_callback *cb)
6613{
00918d33 6614 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6615 int err;
6616 long phy_idx;
6617 void *data = NULL;
6618 int data_len = 0;
6619
5fe231e8
JB		 6620 rtnl_lock();
6621
71063f0e
WYG		 6622 if (cb->args[0]) {
6623 /*
6624 * 0 is a valid index, but not valid for args[0],
6625 * so we need to offset by 1.
6626 */
6627 phy_idx = cb->args[0] - 1;
6628 } else {
6629 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6630 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6631 nl80211_policy);
6632 if (err)
5fe231e8 6633 goto out_err;
00918d33 6634
2bd7e35d
JB		 6635 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6636 nl80211_fam.attrbuf);
6637 if (IS_ERR(rdev)) {
5fe231e8
JB		 6638 err = PTR_ERR(rdev);
6639 goto out_err;
00918d33 6640 }
2bd7e35d
JB		 6641 phy_idx = rdev->wiphy_idx;
6642 rdev = NULL;
2bd7e35d 6643
71063f0e
WYG		 6644 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6645 cb->args[1] =
6646 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6647 }
6648
6649 if (cb->args[1]) {
6650 data = nla_data((void *)cb->args[1]);
6651 data_len = nla_len((void *)cb->args[1]);
6652 }
6653
00918d33
JB		 6654 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6655 if (!rdev) {
5fe231e8
JB		 6656 err = -ENOENT;
6657 goto out_err;
71063f0e 6658 }
71063f0e 6659
00918d33 6660 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6661 err = -EOPNOTSUPP;
6662 goto out_err;
6663 }
6664
6665 while (1) {
15e47304 6666 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6667 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6668 NL80211_CMD_TESTMODE);
6669 struct nlattr *tmdata;
6670
9360ffd1 6671 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6672 genlmsg_cancel(skb, hdr);
6673 break;
6674 }
6675
6676 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6677 if (!tmdata) {
6678 genlmsg_cancel(skb, hdr);
6679 break;
6680 }
e35e4d28 6681 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6682 nla_nest_end(skb, tmdata);
6683
6684 if (err == -ENOBUFS || err == -ENOENT) {
6685 genlmsg_cancel(skb, hdr);
6686 break;
6687 } else if (err) {
6688 genlmsg_cancel(skb, hdr);
6689 goto out_err;
6690 }
6691
6692 genlmsg_end(skb, hdr);
6693 }
6694
6695 err = skb->len;
6696 /* see above */
6697 cb->args[0] = phy_idx + 1;
6698 out_err:
5fe231e8 6699 rtnl_unlock();
71063f0e
WYG		 6700 return err;
6701}
6702
aff89a9b
JB		 6703static struct sk_buff *
6704__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6705 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6706{
6707 struct sk_buff *skb;
6708 void *hdr;
6709 struct nlattr *data;
6710
6711 skb = nlmsg_new(approxlen + 100, gfp);
6712 if (!skb)
6713 return NULL;
6714
15e47304 6715 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6716 if (!hdr) {
6717 kfree_skb(skb);
6718 return NULL;
6719 }
6720
9360ffd1
DM		 6721 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6722 goto nla_put_failure;
aff89a9b
JB		 6723 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6724
6725 ((void **)skb->cb)[0] = rdev;
6726 ((void **)skb->cb)[1] = hdr;
6727 ((void **)skb->cb)[2] = data;
6728
6729 return skb;
6730
6731 nla_put_failure:
6732 kfree_skb(skb);
6733 return NULL;
6734}
6735
6736struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6737 int approxlen)
6738{
6739 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6740
6741 if (WARN_ON(!rdev->testmode_info))
6742 return NULL;
6743
6744 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6745 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6746 rdev->testmode_info->snd_seq,
6747 GFP_KERNEL);
6748}
6749EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6750
6751int cfg80211_testmode_reply(struct sk_buff *skb)
6752{
6753 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6754 void *hdr = ((void **)skb->cb)[1];
6755 struct nlattr *data = ((void **)skb->cb)[2];
6756
6757 if (WARN_ON(!rdev->testmode_info)) {
6758 kfree_skb(skb);
6759 return -EINVAL;
6760 }
6761
6762 nla_nest_end(skb, data);
6763 genlmsg_end(skb, hdr);
6764 return genlmsg_reply(skb, rdev->testmode_info);
6765}
6766EXPORT_SYMBOL(cfg80211_testmode_reply);
6767
6768struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6769 int approxlen, gfp_t gfp)
6770{
6771 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6772
6773 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6774}
6775EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6776
6777void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6778{
6779 void *hdr = ((void **)skb->cb)[1];
6780 struct nlattr *data = ((void **)skb->cb)[2];
6781
6782 nla_nest_end(skb, data);
6783 genlmsg_end(skb, hdr);
6784 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6785}
6786EXPORT_SYMBOL(cfg80211_testmode_event);
6787#endif
6788
b23aa676
SO		 6789static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6790{
4c476991
JB		 6791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6792 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6793 struct cfg80211_connect_params connect;
6794 struct wiphy *wiphy;
fffd0934 6795 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6796 int err;
6797
6798 memset(&connect, 0, sizeof(connect));
6799
6800 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6801 return -EINVAL;
6802
6803 if (!info->attrs[NL80211_ATTR_SSID] ||
6804 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6805 return -EINVAL;
6806
6807 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6808 connect.auth_type =
6809 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6810 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6811 NL80211_CMD_CONNECT))
b23aa676
SO		 6812 return -EINVAL;
6813 } else
6814 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6815
6816 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6817
c0692b8f 6818 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6819 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6820 if (err)
6821 return err;
b23aa676 6822
074ac8df 6823 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6824 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6825 return -EOPNOTSUPP;
b23aa676 6826
79c97e97 6827 wiphy = &rdev->wiphy;
b23aa676 6828
4486ea98
BS		 6829 connect.bg_scan_period = -1;
6830 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6831 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6832 connect.bg_scan_period =
6833 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6834 }
6835
b23aa676
SO		 6836 if (info->attrs[NL80211_ATTR_MAC])
6837 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6838 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6839 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6840
6841 if (info->attrs[NL80211_ATTR_IE]) {
6842 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6843 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6844 }
6845
cee00a95
JM		 6846 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6847 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6848 if (connect.mfp != NL80211_MFP_REQUIRED &&
6849 connect.mfp != NL80211_MFP_NO)
6850 return -EINVAL;
6851 } else {
6852 connect.mfp = NL80211_MFP_NO;
6853 }
6854
b23aa676
SO		 6855 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6856 connect.channel =
6857 ieee80211_get_channel(wiphy,
6858 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6859 if (!connect.channel ||
4c476991
JB		 6860 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6861 return -EINVAL;
b23aa676
SO		 6862 }
6863
fffd0934
JB		 6864 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6865 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6866 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6867 if (IS_ERR(connkeys))
6868 return PTR_ERR(connkeys);
fffd0934
JB		 6869 }
6870
7e7c8926
BG		 6871 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6872 connect.flags |= ASSOC_REQ_DISABLE_HT;
6873
6874 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6875 memcpy(&connect.ht_capa_mask,
6876 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6877 sizeof(connect.ht_capa_mask));
6878
6879 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6880 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6881 kfree(connkeys);
7e7c8926 6882 return -EINVAL;
b4e4f47e 6883 }
7e7c8926
BG		 6884 memcpy(&connect.ht_capa,
6885 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6886 sizeof(connect.ht_capa));
6887 }
6888
ee2aca34
JB		 6889 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6890 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6891
6892 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6893 memcpy(&connect.vht_capa_mask,
6894 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6895 sizeof(connect.vht_capa_mask));
6896
6897 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6898 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6899 kfree(connkeys);
6900 return -EINVAL;
6901 }
6902 memcpy(&connect.vht_capa,
6903 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6904 sizeof(connect.vht_capa));
6905 }
6906
83739b03
JB		 6907 wdev_lock(dev->ieee80211_ptr);
6908 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6909 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 6910 if (err)
6911 kfree(connkeys);
b23aa676
SO		 6912 return err;
6913}
6914
6915static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6916{
4c476991
JB		 6917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6918 struct net_device *dev = info->user_ptr[1];
b23aa676 6919 u16 reason;
83739b03 6920 int ret;
b23aa676
SO		 6921
6922 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6923 reason = WLAN_REASON_DEAUTH_LEAVING;
6924 else
6925 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6926
6927 if (reason == 0)
6928 return -EINVAL;
6929
074ac8df 6930 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6931 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6932 return -EOPNOTSUPP;
b23aa676 6933
83739b03
JB		 6934 wdev_lock(dev->ieee80211_ptr);
6935 ret = cfg80211_disconnect(rdev, dev, reason, true);
6936 wdev_unlock(dev->ieee80211_ptr);
6937 return ret;
b23aa676
SO		 6938}
6939
463d0183
JB		 6940static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6941{
4c476991 6942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6943 struct net *net;
6944 int err;
6945 u32 pid;
6946
6947 if (!info->attrs[NL80211_ATTR_PID])
6948 return -EINVAL;
6949
6950 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6951
463d0183 6952 net = get_net_ns_by_pid(pid);
4c476991
JB		 6953 if (IS_ERR(net))
6954 return PTR_ERR(net);
463d0183
JB		 6955
6956 err = 0;
6957
6958 /* check if anything to do */
4c476991
JB		 6959 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6960 err = cfg80211_switch_netns(rdev, net);
463d0183 6961
463d0183 6962 put_net(net);
463d0183
JB		 6963 return err;
6964}
6965
67fbb16b
SO		 6966static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6967{
4c476991 6968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6969 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6970 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6971 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6972 struct cfg80211_pmksa pmksa;
6973
6974 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6975
6976 if (!info->attrs[NL80211_ATTR_MAC])
6977 return -EINVAL;
6978
6979 if (!info->attrs[NL80211_ATTR_PMKID])
6980 return -EINVAL;
6981
67fbb16b
SO		 6982 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6983 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6984
074ac8df 6985 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6986 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6987 return -EOPNOTSUPP;
67fbb16b
SO		 6988
6989 switch (info->genlhdr->cmd) {
6990 case NL80211_CMD_SET_PMKSA:
6991 rdev_ops = rdev->ops->set_pmksa;
6992 break;
6993 case NL80211_CMD_DEL_PMKSA:
6994 rdev_ops = rdev->ops->del_pmksa;
6995 break;
6996 default:
6997 WARN_ON(1);
6998 break;
6999 }
7000
4c476991
JB		 7001 if (!rdev_ops)
7002 return -EOPNOTSUPP;
67fbb16b 7003
4c476991 7004 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7005}
7006
7007static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7008{
4c476991
JB		 7009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7010 struct net_device *dev = info->user_ptr[1];
67fbb16b 7011
074ac8df 7012 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7013 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7014 return -EOPNOTSUPP;
67fbb16b 7015
4c476991
JB		 7016 if (!rdev->ops->flush_pmksa)
7017 return -EOPNOTSUPP;
67fbb16b 7018
e35e4d28 7019 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7020}
7021
109086ce
AN		 7022static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7023{
7024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7025 struct net_device *dev = info->user_ptr[1];
7026 u8 action_code, dialog_token;
7027 u16 status_code;
7028 u8 *peer;
7029
7030 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7031 !rdev->ops->tdls_mgmt)
7032 return -EOPNOTSUPP;
7033
7034 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7035 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7036 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7037 !info->attrs[NL80211_ATTR_IE] ||
7038 !info->attrs[NL80211_ATTR_MAC])
7039 return -EINVAL;
7040
7041 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7042 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7043 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7044 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7045
e35e4d28
HG		 7046 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7047 dialog_token, status_code,
7048 nla_data(info->attrs[NL80211_ATTR_IE]),
7049 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7050}
7051
7052static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7053{
7054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7055 struct net_device *dev = info->user_ptr[1];
7056 enum nl80211_tdls_operation operation;
7057 u8 *peer;
7058
7059 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7060 !rdev->ops->tdls_oper)
7061 return -EOPNOTSUPP;
7062
7063 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7064 !info->attrs[NL80211_ATTR_MAC])
7065 return -EINVAL;
7066
7067 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7068 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7069
e35e4d28 7070 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7071}
7072
9588bbd5
JM		 7073static int nl80211_remain_on_channel(struct sk_buff *skb,
7074 struct genl_info *info)
7075{
4c476991 7076 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7077 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7078 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7079 struct sk_buff *msg;
7080 void *hdr;
7081 u64 cookie;
683b6d3b 7082 u32 duration;
9588bbd5
JM		 7083 int err;
7084
7085 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7086 !info->attrs[NL80211_ATTR_DURATION])
7087 return -EINVAL;
7088
7089 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7090
ebf348fc
JB		 7091 if (!rdev->ops->remain_on_channel ||
7092 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7093 return -EOPNOTSUPP;
7094
9588bbd5 7095 /*
ebf348fc
JB		 7096 * We should be on that channel for at least a minimum amount of
7097 * time (10ms) but no longer than the driver supports.
9588bbd5 7098 */
ebf348fc 7099 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7100 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7101 return -EINVAL;
7102
683b6d3b
JB		 7103 err = nl80211_parse_chandef(rdev, info, &chandef);
7104 if (err)
7105 return err;
9588bbd5
JM		 7106
7107 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7108 if (!msg)
7109 return -ENOMEM;
9588bbd5 7110
15e47304 7111 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 7112 NL80211_CMD_REMAIN_ON_CHANNEL);
7113
7114 if (IS_ERR(hdr)) {
7115 err = PTR_ERR(hdr);
7116 goto free_msg;
7117 }
7118
683b6d3b
JB		 7119 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7120 duration, &cookie);
9588bbd5
JM		 7121
7122 if (err)
7123 goto free_msg;
7124
9360ffd1
DM		 7125 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7126 goto nla_put_failure;
9588bbd5
JM		 7127
7128 genlmsg_end(msg, hdr);
4c476991
JB		 7129
7130 return genlmsg_reply(msg, info);
9588bbd5
JM		 7131
7132 nla_put_failure:
7133 err = -ENOBUFS;
7134 free_msg:
7135 nlmsg_free(msg);
9588bbd5
JM		 7136 return err;
7137}
7138
7139static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7140 struct genl_info *info)
7141{
4c476991 7142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7143 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7144 u64 cookie;
9588bbd5
JM		 7145
7146 if (!info->attrs[NL80211_ATTR_COOKIE])
7147 return -EINVAL;
7148
4c476991
JB		 7149 if (!rdev->ops->cancel_remain_on_channel)
7150 return -EOPNOTSUPP;
9588bbd5 7151
9588bbd5
JM		 7152 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7153
e35e4d28 7154 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7155}
7156
13ae75b1
JM		 7157static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7158 u8 *rates, u8 rates_len)
7159{
7160 u8 i;
7161 u32 mask = 0;
7162
7163 for (i = 0; i < rates_len; i++) {
7164 int rate = (rates[i] & 0x7f) * 5;
7165 int ridx;
7166 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7167 struct ieee80211_rate *srate =
7168 &sband->bitrates[ridx];
7169 if (rate == srate->bitrate) {
7170 mask |= 1 << ridx;
7171 break;
7172 }
7173 }
7174 if (ridx == sband->n_bitrates)
7175 return 0; /* rate not found */
7176 }
7177
7178 return mask;
7179}
7180
24db78c0
SW		 7181static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7182 u8 *rates, u8 rates_len,
7183 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7184{
7185 u8 i;
7186
7187 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7188
7189 for (i = 0; i < rates_len; i++) {
7190 int ridx, rbit;
7191
7192 ridx = rates[i] / 8;
7193 rbit = BIT(rates[i] % 8);
7194
7195 /* check validity */
910570b5 7196 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7197 return false;
7198
7199 /* check availability */
7200 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7201 mcs[ridx] |= rbit;
7202 else
7203 return false;
7204 }
7205
7206 return true;
7207}
7208
b54452b0 7209static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7210 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7211 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7212 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7213 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7214};
7215
7216static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7217 struct genl_info *info)
7218{
7219 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7221 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7222 int rem, i;
7223 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7224 struct nlattr *tx_rates;
7225 struct ieee80211_supported_band *sband;
7226
7227 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7228 return -EINVAL;
7229
4c476991
JB		 7230 if (!rdev->ops->set_bitrate_mask)
7231 return -EOPNOTSUPP;
13ae75b1
JM		 7232
7233 memset(&mask, 0, sizeof(mask));
7234 /* Default to all rates enabled */
7235 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7236 sband = rdev->wiphy.bands[i];
7237 mask.control[i].legacy =
7238 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7239 if (sband)
7240 memcpy(mask.control[i].mcs,
7241 sband->ht_cap.mcs.rx_mask,
7242 sizeof(mask.control[i].mcs));
7243 else
7244 memset(mask.control[i].mcs, 0,
7245 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7246 }
7247
7248 /*
7249 * The nested attribute uses enum nl80211_band as the index. This maps
7250 * directly to the enum ieee80211_band values used in cfg80211.
7251 */
24db78c0 7252 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7253 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7254 {
7255 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7256 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7257 return -EINVAL;
13ae75b1 7258 sband = rdev->wiphy.bands[band];
4c476991
JB		 7259 if (sband == NULL)
7260 return -EINVAL;
13ae75b1
JM		 7261 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7262 nla_len(tx_rates), nl80211_txattr_policy);
7263 if (tb[NL80211_TXRATE_LEGACY]) {
7264 mask.control[band].legacy = rateset_to_mask(
7265 sband,
7266 nla_data(tb[NL80211_TXRATE_LEGACY]),
7267 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7268 if ((mask.control[band].legacy == 0) &&
7269 nla_len(tb[NL80211_TXRATE_LEGACY]))
7270 return -EINVAL;
24db78c0
SW		 7271 }
7272 if (tb[NL80211_TXRATE_MCS]) {
7273 if (!ht_rateset_to_mask(
7274 sband,
7275 nla_data(tb[NL80211_TXRATE_MCS]),
7276 nla_len(tb[NL80211_TXRATE_MCS]),
7277 mask.control[band].mcs))
7278 return -EINVAL;
7279 }
7280
7281 if (mask.control[band].legacy == 0) {
7282 /* don't allow empty legacy rates if HT
7283 * is not even supported. */
7284 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7285 return -EINVAL;
7286
7287 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7288 if (mask.control[band].mcs[i])
7289 break;
7290
7291 /* legacy and mcs rates may not be both empty */
7292 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7293 return -EINVAL;
13ae75b1
JM		 7294 }
7295 }
7296
e35e4d28 7297 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7298}
7299
2e161f78 7300static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7301{
4c476991 7302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7303 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7304 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7305
7306 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7307 return -EINVAL;
7308
2e161f78
JB		 7309 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7310 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7311
71bbc994
JB		 7312 switch (wdev->iftype) {
7313 case NL80211_IFTYPE_STATION:
7314 case NL80211_IFTYPE_ADHOC:
7315 case NL80211_IFTYPE_P2P_CLIENT:
7316 case NL80211_IFTYPE_AP:
7317 case NL80211_IFTYPE_AP_VLAN:
7318 case NL80211_IFTYPE_MESH_POINT:
7319 case NL80211_IFTYPE_P2P_GO:
98104fde 7320 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7321 break;
7322 default:
4c476991 7323 return -EOPNOTSUPP;
71bbc994 7324 }
026331c4
JM		 7325
7326 /* not much point in registering if we can't reply */
4c476991
JB		 7327 if (!rdev->ops->mgmt_tx)
7328 return -EOPNOTSUPP;
026331c4 7329
15e47304 7330 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7331 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7332 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7333}
7334
2e161f78 7335static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7336{
4c476991 7337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7338 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7339 struct cfg80211_chan_def chandef;
026331c4 7340 int err;
d64d373f 7341 void *hdr = NULL;
026331c4 7342 u64 cookie;
e247bd90 7343 struct sk_buff *msg = NULL;
f7ca38df 7344 unsigned int wait = 0;
e247bd90
JB		 7345 bool offchan, no_cck, dont_wait_for_ack;
7346
7347 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7348
683b6d3b 7349 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7350 return -EINVAL;
7351
4c476991
JB		 7352 if (!rdev->ops->mgmt_tx)
7353 return -EOPNOTSUPP;
026331c4 7354
71bbc994 7355 switch (wdev->iftype) {
ea141b75
AQ		 7356 case NL80211_IFTYPE_P2P_DEVICE:
7357 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7358 return -EINVAL;
71bbc994
JB		 7359 case NL80211_IFTYPE_STATION:
7360 case NL80211_IFTYPE_ADHOC:
7361 case NL80211_IFTYPE_P2P_CLIENT:
7362 case NL80211_IFTYPE_AP:
7363 case NL80211_IFTYPE_AP_VLAN:
7364 case NL80211_IFTYPE_MESH_POINT:
7365 case NL80211_IFTYPE_P2P_GO:
7366 break;
7367 default:
4c476991 7368 return -EOPNOTSUPP;
71bbc994 7369 }
026331c4 7370
f7ca38df 7371 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7372 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7373 return -EINVAL;
7374 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7375
7376 /*
7377 * We should wait on the channel for at least a minimum amount
7378 * of time (10ms) but no longer than the driver supports.
7379 */
7380 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7381 wait > rdev->wiphy.max_remain_on_channel_duration)
7382 return -EINVAL;
7383
f7ca38df
JB		 7384 }
7385
f7ca38df
JB		 7386 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7387
7c4ef712
JB		 7388 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7389 return -EINVAL;
7390
e9f935e3
RM		 7391 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7392
ea141b75
AQ		 7393 /* get the channel if any has been specified, otherwise pass NULL to
7394 * the driver. The latter will use the current one
7395 */
7396 chandef.chan = NULL;
7397 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7398 err = nl80211_parse_chandef(rdev, info, &chandef);
7399 if (err)
7400 return err;
7401 }
7402
7403 if (!chandef.chan && offchan)
7404 return -EINVAL;
026331c4 7405
e247bd90
JB		 7406 if (!dont_wait_for_ack) {
7407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7408 if (!msg)
7409 return -ENOMEM;
026331c4 7410
15e47304 7411 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7412 NL80211_CMD_FRAME);
026331c4 7413
e247bd90
JB		 7414 if (IS_ERR(hdr)) {
7415 err = PTR_ERR(hdr);
7416 goto free_msg;
7417 }
026331c4 7418 }
e247bd90 7419
683b6d3b 7420 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7421 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7422 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7423 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7424 if (err)
7425 goto free_msg;
7426
e247bd90 7427 if (msg) {
9360ffd1
DM		 7428 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7429 goto nla_put_failure;
026331c4 7430
e247bd90
JB		 7431 genlmsg_end(msg, hdr);
7432 return genlmsg_reply(msg, info);
7433 }
7434
7435 return 0;
026331c4
JM		 7436
7437 nla_put_failure:
7438 err = -ENOBUFS;
7439 free_msg:
7440 nlmsg_free(msg);
026331c4
JM		 7441 return err;
7442}
7443
f7ca38df
JB		 7444static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7445{
7446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7447 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7448 u64 cookie;
7449
7450 if (!info->attrs[NL80211_ATTR_COOKIE])
7451 return -EINVAL;
7452
7453 if (!rdev->ops->mgmt_tx_cancel_wait)
7454 return -EOPNOTSUPP;
7455
71bbc994
JB		 7456 switch (wdev->iftype) {
7457 case NL80211_IFTYPE_STATION:
7458 case NL80211_IFTYPE_ADHOC:
7459 case NL80211_IFTYPE_P2P_CLIENT:
7460 case NL80211_IFTYPE_AP:
7461 case NL80211_IFTYPE_AP_VLAN:
7462 case NL80211_IFTYPE_P2P_GO:
98104fde 7463 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7464 break;
7465 default:
f7ca38df 7466 return -EOPNOTSUPP;
71bbc994 7467 }
f7ca38df
JB		 7468
7469 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7470
e35e4d28 7471 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7472}
7473
ffb9eb3d
KV		 7474static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7475{
4c476991 7476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7477 struct wireless_dev *wdev;
4c476991 7478 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7479 u8 ps_state;
7480 bool state;
7481 int err;
7482
4c476991
JB		 7483 if (!info->attrs[NL80211_ATTR_PS_STATE])
7484 return -EINVAL;
ffb9eb3d
KV		 7485
7486 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7487
4c476991
JB		 7488 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7489 return -EINVAL;
ffb9eb3d
KV		 7490
7491 wdev = dev->ieee80211_ptr;
7492
4c476991
JB		 7493 if (!rdev->ops->set_power_mgmt)
7494 return -EOPNOTSUPP;
ffb9eb3d
KV		 7495
7496 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7497
7498 if (state == wdev->ps)
4c476991 7499 return 0;
ffb9eb3d 7500
e35e4d28 7501 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7502 if (!err)
7503 wdev->ps = state;
ffb9eb3d
KV		 7504 return err;
7505}
7506
7507static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7508{
4c476991 7509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7510 enum nl80211_ps_state ps_state;
7511 struct wireless_dev *wdev;
4c476991 7512 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7513 struct sk_buff *msg;
7514 void *hdr;
7515 int err;
7516
ffb9eb3d
KV		 7517 wdev = dev->ieee80211_ptr;
7518
4c476991
JB		 7519 if (!rdev->ops->set_power_mgmt)
7520 return -EOPNOTSUPP;
ffb9eb3d
KV		 7521
7522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7523 if (!msg)
7524 return -ENOMEM;
ffb9eb3d 7525
15e47304 7526 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7527 NL80211_CMD_GET_POWER_SAVE);
7528 if (!hdr) {
4c476991 7529 err = -ENOBUFS;
ffb9eb3d
KV		 7530 goto free_msg;
7531 }
7532
7533 if (wdev->ps)
7534 ps_state = NL80211_PS_ENABLED;
7535 else
7536 ps_state = NL80211_PS_DISABLED;
7537
9360ffd1
DM		 7538 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7539 goto nla_put_failure;
ffb9eb3d
KV		 7540
7541 genlmsg_end(msg, hdr);
4c476991 7542 return genlmsg_reply(msg, info);
ffb9eb3d 7543
4c476991 7544 nla_put_failure:
ffb9eb3d 7545 err = -ENOBUFS;
4c476991 7546 free_msg:
ffb9eb3d 7547 nlmsg_free(msg);
ffb9eb3d
KV		 7548 return err;
7549}
7550
d6dc1a38
JO		 7551static struct nla_policy
7552nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7553 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7554 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7555 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7556 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7557 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7558 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7559};
7560
84f10708 7561static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7562 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7563{
7564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7565 struct wireless_dev *wdev;
7566 struct net_device *dev = info->user_ptr[1];
7567
d9d8b019 7568 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7569 return -EINVAL;
7570
7571 wdev = dev->ieee80211_ptr;
7572
7573 if (!rdev->ops->set_cqm_txe_config)
7574 return -EOPNOTSUPP;
7575
7576 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7577 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7578 return -EOPNOTSUPP;
7579
e35e4d28 7580 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7581}
7582
d6dc1a38
JO		 7583static int nl80211_set_cqm_rssi(struct genl_info *info,
7584 s32 threshold, u32 hysteresis)
7585{
4c476991 7586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7587 struct wireless_dev *wdev;
4c476991 7588 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7589
7590 if (threshold > 0)
7591 return -EINVAL;
7592
d6dc1a38
JO		 7593 wdev = dev->ieee80211_ptr;
7594
4c476991
JB		 7595 if (!rdev->ops->set_cqm_rssi_config)
7596 return -EOPNOTSUPP;
d6dc1a38 7597
074ac8df 7598 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7599 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7600 return -EOPNOTSUPP;
d6dc1a38 7601
e35e4d28 7602 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7603}
7604
7605static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7606{
7607 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7608 struct nlattr *cqm;
7609 int err;
7610
7611 cqm = info->attrs[NL80211_ATTR_CQM];
7612 if (!cqm) {
7613 err = -EINVAL;
7614 goto out;
7615 }
7616
7617 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7618 nl80211_attr_cqm_policy);
7619 if (err)
7620 goto out;
7621
7622 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7623 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7624 s32 threshold;
7625 u32 hysteresis;
7626 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7627 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7628 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7629 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7630 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7631 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7632 u32 rate, pkts, intvl;
7633 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7634 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7635 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7636 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7637 } else
7638 err = -EINVAL;
7639
7640out:
7641 return err;
7642}
7643
29cbe68c
JB		 7644static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7645{
7646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7647 struct net_device *dev = info->user_ptr[1];
7648 struct mesh_config cfg;
c80d545d 7649 struct mesh_setup setup;
29cbe68c
JB		 7650 int err;
7651
7652 /* start with default */
7653 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7654 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7655
24bdd9f4 7656 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7657 /* and parse parameters if given */
24bdd9f4 7658 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7659 if (err)
7660 return err;
7661 }
7662
7663 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7664 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7665 return -EINVAL;
7666
c80d545d
JC		 7667 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7668 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7669
4bb62344
CYY		 7670 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7671 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7672 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7673 return -EINVAL;
7674
9bdbf04d
MP		 7675 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7676 setup.beacon_interval =
7677 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7678 if (setup.beacon_interval < 10 ||
7679 setup.beacon_interval > 10000)
7680 return -EINVAL;
7681 }
7682
7683 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7684 setup.dtim_period =
7685 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7686 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7687 return -EINVAL;
7688 }
7689
c80d545d
JC		 7690 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7691 /* parse additional setup parameters if given */
7692 err = nl80211_parse_mesh_setup(info, &setup);
7693 if (err)
7694 return err;
7695 }
7696
d37bb18a
TP		 7697 if (setup.user_mpm)
7698 cfg.auto_open_plinks = false;
7699
cc1d2806 7700 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7701 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7702 if (err)
7703 return err;
cc1d2806
JB		 7704 } else {
7705 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7706 setup.chandef.chan = NULL;
cc1d2806
JB		 7707 }
7708
ffb3cf30
AN		 7709 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7710 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7711 int n_rates =
7712 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7713 struct ieee80211_supported_band *sband;
7714
7715 if (!setup.chandef.chan)
7716 return -EINVAL;
7717
7718 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7719
7720 err = ieee80211_get_ratemask(sband, rates, n_rates,
7721 &setup.basic_rates);
7722 if (err)
7723 return err;
7724 }
7725
c80d545d 7726 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7727}
7728
7729static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7730{
7731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7732 struct net_device *dev = info->user_ptr[1];
7733
7734 return cfg80211_leave_mesh(rdev, dev);
7735}
7736
dfb89c56 7737#ifdef CONFIG_PM
bb92d199
AK		 7738static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7739 struct cfg80211_registered_device *rdev)
7740{
6abb9cb9 7741 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7742 struct nlattr *nl_pats, *nl_pat;
7743 int i, pat_len;
7744
6abb9cb9 7745 if (!wowlan->n_patterns)
bb92d199
AK		 7746 return 0;
7747
7748 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7749 if (!nl_pats)
7750 return -ENOBUFS;
7751
6abb9cb9 7752 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7753 nl_pat = nla_nest_start(msg, i + 1);
7754 if (!nl_pat)
7755 return -ENOBUFS;
6abb9cb9 7756 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 7757 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7758 wowlan->patterns[i].mask) ||
50ac6607
AK		 7759 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7760 wowlan->patterns[i].pattern) ||
7761 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 7762 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7763 return -ENOBUFS;
7764 nla_nest_end(msg, nl_pat);
7765 }
7766 nla_nest_end(msg, nl_pats);
7767
7768 return 0;
7769}
7770
2a0e047e
JB		 7771static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7772 struct cfg80211_wowlan_tcp *tcp)
7773{
7774 struct nlattr *nl_tcp;
7775
7776 if (!tcp)
7777 return 0;
7778
7779 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7780 if (!nl_tcp)
7781 return -ENOBUFS;
7782
7783 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7784 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7785 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7786 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7787 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7788 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7789 tcp->payload_len, tcp->payload) ||
7790 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7791 tcp->data_interval) ||
7792 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7793 tcp->wake_len, tcp->wake_data) ||
7794 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7795 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7796 return -ENOBUFS;
7797
7798 if (tcp->payload_seq.len &&
7799 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7800 sizeof(tcp->payload_seq), &tcp->payload_seq))
7801 return -ENOBUFS;
7802
7803 if (tcp->payload_tok.len &&
7804 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7805 sizeof(tcp->payload_tok) + tcp->tokens_size,
7806 &tcp->payload_tok))
7807 return -ENOBUFS;
7808
e248ad30
JB		 7809 nla_nest_end(msg, nl_tcp);
7810
2a0e047e
JB		 7811 return 0;
7812}
7813
ff1b6e69
JB		 7814static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7815{
7816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7817 struct sk_buff *msg;
7818 void *hdr;
2a0e047e 7819 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7820
964dc9e2 7821 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7822 return -EOPNOTSUPP;
7823
6abb9cb9 7824 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7825 /* adjust size to have room for all the data */
6abb9cb9
JB		 7826 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7827 rdev->wiphy.wowlan_config->tcp->payload_len +
7828 rdev->wiphy.wowlan_config->tcp->wake_len +
7829 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7830 }
7831
7832 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7833 if (!msg)
7834 return -ENOMEM;
7835
15e47304 7836 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7837 NL80211_CMD_GET_WOWLAN);
7838 if (!hdr)
7839 goto nla_put_failure;
7840
6abb9cb9 7841 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7842 struct nlattr *nl_wowlan;
7843
7844 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7845 if (!nl_wowlan)
7846 goto nla_put_failure;
7847
6abb9cb9 7848 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7849 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7850 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7851 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7852 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7853 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7854 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7855 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7856 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7857 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7858 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7859 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7860 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7861 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7862 goto nla_put_failure;
2a0e047e 7863
bb92d199
AK		 7864 if (nl80211_send_wowlan_patterns(msg, rdev))
7865 goto nla_put_failure;
2a0e047e 7866
6abb9cb9
JB		 7867 if (nl80211_send_wowlan_tcp(msg,
7868 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7869 goto nla_put_failure;
7870
ff1b6e69
JB		 7871 nla_nest_end(msg, nl_wowlan);
7872 }
7873
7874 genlmsg_end(msg, hdr);
7875 return genlmsg_reply(msg, info);
7876
7877nla_put_failure:
7878 nlmsg_free(msg);
7879 return -ENOBUFS;
7880}
7881
2a0e047e
JB		 7882static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7883 struct nlattr *attr,
7884 struct cfg80211_wowlan *trig)
7885{
7886 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7887 struct cfg80211_wowlan_tcp *cfg;
7888 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7889 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7890 u32 size;
7891 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7892 int err, port;
7893
964dc9e2 7894 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 7895 return -EINVAL;
7896
7897 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7898 nla_data(attr), nla_len(attr),
7899 nl80211_wowlan_tcp_policy);
7900 if (err)
7901 return err;
7902
7903 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7904 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7905 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7906 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7907 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7908 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7909 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7910 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7911 return -EINVAL;
7912
7913 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 7914 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 7915 return -EINVAL;
7916
7917 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 7918 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 7919 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7920 return -EINVAL;
7921
7922 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 7923 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 7924 return -EINVAL;
7925
7926 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7927 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7928 return -EINVAL;
7929
7930 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7931 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7932
7933 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7934 tokens_size = tokln - sizeof(*tok);
7935
7936 if (!tok->len || tokens_size % tok->len)
7937 return -EINVAL;
964dc9e2 7938 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 7939 return -EINVAL;
964dc9e2 7940 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 7941 return -EINVAL;
964dc9e2 7942 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 7943 return -EINVAL;
964dc9e2 7944 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 7945 return -EINVAL;
7946 if (tok->offset + tok->len > data_size)
7947 return -EINVAL;
7948 }
7949
7950 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7951 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 7952 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 7953 return -EINVAL;
7954 if (seq->len == 0 || seq->len > 4)
7955 return -EINVAL;
7956 if (seq->len + seq->offset > data_size)
7957 return -EINVAL;
7958 }
7959
7960 size = sizeof(*cfg);
7961 size += data_size;
7962 size += wake_size + wake_mask_size;
7963 size += tokens_size;
7964
7965 cfg = kzalloc(size, GFP_KERNEL);
7966 if (!cfg)
7967 return -ENOMEM;
7968 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7969 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7970 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7971 ETH_ALEN);
7972 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7973 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7974 else
7975 port = 0;
7976#ifdef CONFIG_INET
7977 /* allocate a socket and port for it and use it */
7978 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7979 IPPROTO_TCP, &cfg->sock, 1);
7980 if (err) {
7981 kfree(cfg);
7982 return err;
7983 }
7984 if (inet_csk_get_port(cfg->sock->sk, port)) {
7985 sock_release(cfg->sock);
7986 kfree(cfg);
7987 return -EADDRINUSE;
7988 }
7989 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7990#else
7991 if (!port) {
7992 kfree(cfg);
7993 return -EINVAL;
7994 }
7995 cfg->src_port = port;
7996#endif
7997
7998 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7999 cfg->payload_len = data_size;
8000 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8001 memcpy((void *)cfg->payload,
8002 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8003 data_size);
8004 if (seq)
8005 cfg->payload_seq = *seq;
8006 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8007 cfg->wake_len = wake_size;
8008 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8009 memcpy((void *)cfg->wake_data,
8010 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8011 wake_size);
8012 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8013 data_size + wake_size;
8014 memcpy((void *)cfg->wake_mask,
8015 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8016 wake_mask_size);
8017 if (tok) {
8018 cfg->tokens_size = tokens_size;
8019 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8020 }
8021
8022 trig->tcp = cfg;
8023
8024 return 0;
8025}
8026
ff1b6e69
JB		 8027static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8028{
8029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8030 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8031 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8032 struct cfg80211_wowlan *ntrig;
964dc9e2 8033 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8034 int err, i;
6abb9cb9 8035 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8036
964dc9e2 8037 if (!wowlan)
ff1b6e69
JB		 8038 return -EOPNOTSUPP;
8039
ae33bd81
JB		 8040 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8041 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8042 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8043 goto set_wakeup;
8044 }
ff1b6e69
JB		 8045
8046 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8047 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8048 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8049 nl80211_wowlan_policy);
8050 if (err)
8051 return err;
8052
8053 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8054 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8055 return -EINVAL;
8056 new_triggers.any = true;
8057 }
8058
8059 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8060 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8061 return -EINVAL;
8062 new_triggers.disconnect = true;
8063 }
8064
8065 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8066 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8067 return -EINVAL;
8068 new_triggers.magic_pkt = true;
8069 }
8070
77dbbb13
JB		 8071 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8072 return -EINVAL;
8073
8074 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8075 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8076 return -EINVAL;
8077 new_triggers.gtk_rekey_failure = true;
8078 }
8079
8080 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8081 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8082 return -EINVAL;
8083 new_triggers.eap_identity_req = true;
8084 }
8085
8086 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8087 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8088 return -EINVAL;
8089 new_triggers.four_way_handshake = true;
8090 }
8091
8092 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8093 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8094 return -EINVAL;
8095 new_triggers.rfkill_release = true;
8096 }
8097
ff1b6e69
JB		 8098 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8099 struct nlattr *pat;
8100 int n_patterns = 0;
bb92d199 8101 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8102 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8103
8104 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8105 rem)
8106 n_patterns++;
8107 if (n_patterns > wowlan->n_patterns)
8108 return -EINVAL;
8109
8110 new_triggers.patterns = kcalloc(n_patterns,
8111 sizeof(new_triggers.patterns[0]),
8112 GFP_KERNEL);
8113 if (!new_triggers.patterns)
8114 return -ENOMEM;
8115
8116 new_triggers.n_patterns = n_patterns;
8117 i = 0;
8118
8119 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8120 rem) {
50ac6607
AK		 8121 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8122 nla_len(pat), NULL);
ff1b6e69 8123 err = -EINVAL;
50ac6607
AK		 8124 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8125 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8126 goto error;
50ac6607 8127 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8128 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8129 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8130 goto error;
8131 if (pat_len > wowlan->pattern_max_len ||
8132 pat_len < wowlan->pattern_min_len)
8133 goto error;
8134
50ac6607 8135 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8136 pkt_offset = 0;
8137 else
8138 pkt_offset = nla_get_u32(
50ac6607 8139 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8140 if (pkt_offset > wowlan->max_pkt_offset)
8141 goto error;
8142 new_triggers.patterns[i].pkt_offset = pkt_offset;
8143
ff1b6e69
JB		 8144 new_triggers.patterns[i].mask =
8145 kmalloc(mask_len + pat_len, GFP_KERNEL);
8146 if (!new_triggers.patterns[i].mask) {
8147 err = -ENOMEM;
8148 goto error;
8149 }
8150 new_triggers.patterns[i].pattern =
8151 new_triggers.patterns[i].mask + mask_len;
8152 memcpy(new_triggers.patterns[i].mask,
50ac6607 8153 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8154 mask_len);
8155 new_triggers.patterns[i].pattern_len = pat_len;
8156 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8157 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8158 pat_len);
8159 i++;
8160 }
8161 }
8162
2a0e047e
JB		 8163 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8164 err = nl80211_parse_wowlan_tcp(
8165 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8166 &new_triggers);
8167 if (err)
8168 goto error;
8169 }
8170
ae33bd81
JB		 8171 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8172 if (!ntrig) {
8173 err = -ENOMEM;
8174 goto error;
ff1b6e69 8175 }
ae33bd81 8176 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8177 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8178
ae33bd81 8179 set_wakeup:
6abb9cb9
JB		 8180 if (rdev->ops->set_wakeup &&
8181 prev_enabled != !!rdev->wiphy.wowlan_config)
8182 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8183
ff1b6e69
JB		 8184 return 0;
8185 error:
8186 for (i = 0; i < new_triggers.n_patterns; i++)
8187 kfree(new_triggers.patterns[i].mask);
8188 kfree(new_triggers.patterns);
2a0e047e
JB		 8189 if (new_triggers.tcp && new_triggers.tcp->sock)
8190 sock_release(new_triggers.tcp->sock);
8191 kfree(new_triggers.tcp);
ff1b6e69
JB		 8192 return err;
8193}
dfb89c56 8194#endif
ff1b6e69 8195
be29b99a
AK		 8196static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8197 struct cfg80211_registered_device *rdev)
8198{
8199 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8200 int i, j, pat_len;
8201 struct cfg80211_coalesce_rules *rule;
8202
8203 if (!rdev->coalesce->n_rules)
8204 return 0;
8205
8206 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8207 if (!nl_rules)
8208 return -ENOBUFS;
8209
8210 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8211 nl_rule = nla_nest_start(msg, i + 1);
8212 if (!nl_rule)
8213 return -ENOBUFS;
8214
8215 rule = &rdev->coalesce->rules[i];
8216 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8217 rule->delay))
8218 return -ENOBUFS;
8219
8220 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8221 rule->condition))
8222 return -ENOBUFS;
8223
8224 nl_pats = nla_nest_start(msg,
8225 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8226 if (!nl_pats)
8227 return -ENOBUFS;
8228
8229 for (j = 0; j < rule->n_patterns; j++) {
8230 nl_pat = nla_nest_start(msg, j + 1);
8231 if (!nl_pat)
8232 return -ENOBUFS;
8233 pat_len = rule->patterns[j].pattern_len;
8234 if (nla_put(msg, NL80211_PKTPAT_MASK,
8235 DIV_ROUND_UP(pat_len, 8),
8236 rule->patterns[j].mask) ||
8237 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8238 rule->patterns[j].pattern) ||
8239 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8240 rule->patterns[j].pkt_offset))
8241 return -ENOBUFS;
8242 nla_nest_end(msg, nl_pat);
8243 }
8244 nla_nest_end(msg, nl_pats);
8245 nla_nest_end(msg, nl_rule);
8246 }
8247 nla_nest_end(msg, nl_rules);
8248
8249 return 0;
8250}
8251
8252static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8253{
8254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8255 struct sk_buff *msg;
8256 void *hdr;
8257
8258 if (!rdev->wiphy.coalesce)
8259 return -EOPNOTSUPP;
8260
8261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8262 if (!msg)
8263 return -ENOMEM;
8264
8265 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8266 NL80211_CMD_GET_COALESCE);
8267 if (!hdr)
8268 goto nla_put_failure;
8269
8270 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8271 goto nla_put_failure;
8272
8273 genlmsg_end(msg, hdr);
8274 return genlmsg_reply(msg, info);
8275
8276nla_put_failure:
8277 nlmsg_free(msg);
8278 return -ENOBUFS;
8279}
8280
8281void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8282{
8283 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8284 int i, j;
8285 struct cfg80211_coalesce_rules *rule;
8286
8287 if (!coalesce)
8288 return;
8289
8290 for (i = 0; i < coalesce->n_rules; i++) {
8291 rule = &coalesce->rules[i];
8292 for (j = 0; j < rule->n_patterns; j++)
8293 kfree(rule->patterns[j].mask);
8294 kfree(rule->patterns);
8295 }
8296 kfree(coalesce->rules);
8297 kfree(coalesce);
8298 rdev->coalesce = NULL;
8299}
8300
8301static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8302 struct nlattr *rule,
8303 struct cfg80211_coalesce_rules *new_rule)
8304{
8305 int err, i;
8306 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8307 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8308 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8309 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8310
8311 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8312 nla_len(rule), nl80211_coalesce_policy);
8313 if (err)
8314 return err;
8315
8316 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8317 new_rule->delay =
8318 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8319 if (new_rule->delay > coalesce->max_delay)
8320 return -EINVAL;
8321
8322 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8323 new_rule->condition =
8324 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8325 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8326 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8327 return -EINVAL;
8328
8329 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8330 return -EINVAL;
8331
8332 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8333 rem)
8334 n_patterns++;
8335 if (n_patterns > coalesce->n_patterns)
8336 return -EINVAL;
8337
8338 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8339 GFP_KERNEL);
8340 if (!new_rule->patterns)
8341 return -ENOMEM;
8342
8343 new_rule->n_patterns = n_patterns;
8344 i = 0;
8345
8346 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8347 rem) {
8348 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8349 nla_len(pat), NULL);
8350 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8351 !pat_tb[NL80211_PKTPAT_PATTERN])
8352 return -EINVAL;
8353 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8354 mask_len = DIV_ROUND_UP(pat_len, 8);
8355 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8356 return -EINVAL;
8357 if (pat_len > coalesce->pattern_max_len ||
8358 pat_len < coalesce->pattern_min_len)
8359 return -EINVAL;
8360
8361 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8362 pkt_offset = 0;
8363 else
8364 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8365 if (pkt_offset > coalesce->max_pkt_offset)
8366 return -EINVAL;
8367 new_rule->patterns[i].pkt_offset = pkt_offset;
8368
8369 new_rule->patterns[i].mask =
8370 kmalloc(mask_len + pat_len, GFP_KERNEL);
8371 if (!new_rule->patterns[i].mask)
8372 return -ENOMEM;
8373 new_rule->patterns[i].pattern =
8374 new_rule->patterns[i].mask + mask_len;
8375 memcpy(new_rule->patterns[i].mask,
8376 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8377 new_rule->patterns[i].pattern_len = pat_len;
8378 memcpy(new_rule->patterns[i].pattern,
8379 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8380 i++;
8381 }
8382
8383 return 0;
8384}
8385
8386static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8387{
8388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8389 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8390 struct cfg80211_coalesce new_coalesce = {};
8391 struct cfg80211_coalesce *n_coalesce;
8392 int err, rem_rule, n_rules = 0, i, j;
8393 struct nlattr *rule;
8394 struct cfg80211_coalesce_rules *tmp_rule;
8395
8396 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8397 return -EOPNOTSUPP;
8398
8399 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8400 cfg80211_rdev_free_coalesce(rdev);
8401 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8402 return 0;
8403 }
8404
8405 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8406 rem_rule)
8407 n_rules++;
8408 if (n_rules > coalesce->n_rules)
8409 return -EINVAL;
8410
8411 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8412 GFP_KERNEL);
8413 if (!new_coalesce.rules)
8414 return -ENOMEM;
8415
8416 new_coalesce.n_rules = n_rules;
8417 i = 0;
8418
8419 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8420 rem_rule) {
8421 err = nl80211_parse_coalesce_rule(rdev, rule,
8422 &new_coalesce.rules[i]);
8423 if (err)
8424 goto error;
8425
8426 i++;
8427 }
8428
8429 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8430 if (err)
8431 goto error;
8432
8433 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8434 if (!n_coalesce) {
8435 err = -ENOMEM;
8436 goto error;
8437 }
8438 cfg80211_rdev_free_coalesce(rdev);
8439 rdev->coalesce = n_coalesce;
8440
8441 return 0;
8442error:
8443 for (i = 0; i < new_coalesce.n_rules; i++) {
8444 tmp_rule = &new_coalesce.rules[i];
8445 for (j = 0; j < tmp_rule->n_patterns; j++)
8446 kfree(tmp_rule->patterns[j].mask);
8447 kfree(tmp_rule->patterns);
8448 }
8449 kfree(new_coalesce.rules);
8450
8451 return err;
8452}
8453
e5497d76
JB		 8454static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8455{
8456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8457 struct net_device *dev = info->user_ptr[1];
8458 struct wireless_dev *wdev = dev->ieee80211_ptr;
8459 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8460 struct cfg80211_gtk_rekey_data rekey_data;
8461 int err;
8462
8463 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8464 return -EINVAL;
8465
8466 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8467 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8468 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8469 nl80211_rekey_policy);
8470 if (err)
8471 return err;
8472
8473 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8474 return -ERANGE;
8475 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8476 return -ERANGE;
8477 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8478 return -ERANGE;
8479
8480 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8481 NL80211_KEK_LEN);
8482 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8483 NL80211_KCK_LEN);
8484 memcpy(rekey_data.replay_ctr,
8485 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8486 NL80211_REPLAY_CTR_LEN);
8487
8488 wdev_lock(wdev);
8489 if (!wdev->current_bss) {
8490 err = -ENOTCONN;
8491 goto out;
8492 }
8493
8494 if (!rdev->ops->set_rekey_data) {
8495 err = -EOPNOTSUPP;
8496 goto out;
8497 }
8498
e35e4d28 8499 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8500 out:
8501 wdev_unlock(wdev);
8502 return err;
8503}
8504
28946da7
JB		 8505static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8506 struct genl_info *info)
8507{
8508 struct net_device *dev = info->user_ptr[1];
8509 struct wireless_dev *wdev = dev->ieee80211_ptr;
8510
8511 if (wdev->iftype != NL80211_IFTYPE_AP &&
8512 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8513 return -EINVAL;
8514
15e47304 8515 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8516 return -EBUSY;
8517
15e47304 8518 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8519 return 0;
8520}
8521
7f6cf311
JB		 8522static int nl80211_probe_client(struct sk_buff *skb,
8523 struct genl_info *info)
8524{
8525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8526 struct net_device *dev = info->user_ptr[1];
8527 struct wireless_dev *wdev = dev->ieee80211_ptr;
8528 struct sk_buff *msg;
8529 void *hdr;
8530 const u8 *addr;
8531 u64 cookie;
8532 int err;
8533
8534 if (wdev->iftype != NL80211_IFTYPE_AP &&
8535 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8536 return -EOPNOTSUPP;
8537
8538 if (!info->attrs[NL80211_ATTR_MAC])
8539 return -EINVAL;
8540
8541 if (!rdev->ops->probe_client)
8542 return -EOPNOTSUPP;
8543
8544 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8545 if (!msg)
8546 return -ENOMEM;
8547
15e47304 8548 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8549 NL80211_CMD_PROBE_CLIENT);
8550
8551 if (IS_ERR(hdr)) {
8552 err = PTR_ERR(hdr);
8553 goto free_msg;
8554 }
8555
8556 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8557
e35e4d28 8558 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8559 if (err)
8560 goto free_msg;
8561
9360ffd1
DM		 8562 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8563 goto nla_put_failure;
7f6cf311
JB		 8564
8565 genlmsg_end(msg, hdr);
8566
8567 return genlmsg_reply(msg, info);
8568
8569 nla_put_failure:
8570 err = -ENOBUFS;
8571 free_msg:
8572 nlmsg_free(msg);
8573 return err;
8574}
8575
5e760230
JB		 8576static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8577{
8578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8579 struct cfg80211_beacon_registration *reg, *nreg;
8580 int rv;
5e760230
JB		 8581
8582 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8583 return -EOPNOTSUPP;
8584
37c73b5f
BG		 8585 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8586 if (!nreg)
8587 return -ENOMEM;
8588
8589 /* First, check if already registered. */
8590 spin_lock_bh(&rdev->beacon_registrations_lock);
8591 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8592 if (reg->nlportid == info->snd_portid) {
8593 rv = -EALREADY;
8594 goto out_err;
8595 }
8596 }
8597 /* Add it to the list */
8598 nreg->nlportid = info->snd_portid;
8599 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8600
37c73b5f 8601 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8602
8603 return 0;
37c73b5f
BG		 8604out_err:
8605 spin_unlock_bh(&rdev->beacon_registrations_lock);
8606 kfree(nreg);
8607 return rv;
5e760230
JB		 8608}
8609
98104fde
JB		 8610static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8611{
8612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8613 struct wireless_dev *wdev = info->user_ptr[1];
8614 int err;
8615
8616 if (!rdev->ops->start_p2p_device)
8617 return -EOPNOTSUPP;
8618
8619 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8620 return -EOPNOTSUPP;
8621
8622 if (wdev->p2p_started)
8623 return 0;
8624
98104fde 8625 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8626 if (err)
8627 return err;
8628
eeb126e9 8629 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8630 if (err)
8631 return err;
8632
8633 wdev->p2p_started = true;
98104fde 8634 rdev->opencount++;
98104fde
JB		 8635
8636 return 0;
8637}
8638
8639static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8640{
8641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8642 struct wireless_dev *wdev = info->user_ptr[1];
8643
8644 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8645 return -EOPNOTSUPP;
8646
8647 if (!rdev->ops->stop_p2p_device)
8648 return -EOPNOTSUPP;
8649
f9f47529 8650 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8651
8652 return 0;
8653}
8654
3713b4e3
JB		 8655static int nl80211_get_protocol_features(struct sk_buff *skb,
8656 struct genl_info *info)
8657{
8658 void *hdr;
8659 struct sk_buff *msg;
8660
8661 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8662 if (!msg)
8663 return -ENOMEM;
8664
8665 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8666 NL80211_CMD_GET_PROTOCOL_FEATURES);
8667 if (!hdr)
8668 goto nla_put_failure;
8669
8670 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8671 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8672 goto nla_put_failure;
8673
8674 genlmsg_end(msg, hdr);
8675 return genlmsg_reply(msg, info);
8676
8677 nla_put_failure:
8678 kfree_skb(msg);
8679 return -ENOBUFS;
8680}
8681
355199e0
JM		 8682static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8683{
8684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8685 struct cfg80211_update_ft_ies_params ft_params;
8686 struct net_device *dev = info->user_ptr[1];
8687
8688 if (!rdev->ops->update_ft_ies)
8689 return -EOPNOTSUPP;
8690
8691 if (!info->attrs[NL80211_ATTR_MDID] ||
8692 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8693 return -EINVAL;
8694
8695 memset(&ft_params, 0, sizeof(ft_params));
8696 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8697 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8698 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8699
8700 return rdev_update_ft_ies(rdev, dev, &ft_params);
8701}
8702
5de17984
AS		 8703static int nl80211_crit_protocol_start(struct sk_buff *skb,
8704 struct genl_info *info)
8705{
8706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8707 struct wireless_dev *wdev = info->user_ptr[1];
8708 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8709 u16 duration;
8710 int ret;
8711
8712 if (!rdev->ops->crit_proto_start)
8713 return -EOPNOTSUPP;
8714
8715 if (WARN_ON(!rdev->ops->crit_proto_stop))
8716 return -EINVAL;
8717
8718 if (rdev->crit_proto_nlportid)
8719 return -EBUSY;
8720
8721 /* determine protocol if provided */
8722 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8723 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8724
8725 if (proto >= NUM_NL80211_CRIT_PROTO)
8726 return -EINVAL;
8727
8728 /* timeout must be provided */
8729 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8730 return -EINVAL;
8731
8732 duration =
8733 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8734
8735 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8736 return -ERANGE;
8737
8738 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8739 if (!ret)
8740 rdev->crit_proto_nlportid = info->snd_portid;
8741
8742 return ret;
8743}
8744
8745static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8746 struct genl_info *info)
8747{
8748 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8749 struct wireless_dev *wdev = info->user_ptr[1];
8750
8751 if (!rdev->ops->crit_proto_stop)
8752 return -EOPNOTSUPP;
8753
8754 if (rdev->crit_proto_nlportid) {
8755 rdev->crit_proto_nlportid = 0;
8756 rdev_crit_proto_stop(rdev, wdev);
8757 }
8758 return 0;
8759}
8760
4c476991
JB		 8761#define NL80211_FLAG_NEED_WIPHY 0x01
8762#define NL80211_FLAG_NEED_NETDEV 0x02
8763#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8764#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8765#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8766 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8767#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8768/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8769#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8770 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8771
8772static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8773 struct genl_info *info)
8774{
8775 struct cfg80211_registered_device *rdev;
89a54e48 8776 struct wireless_dev *wdev;
4c476991 8777 struct net_device *dev;
4c476991
JB		 8778 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8779
8780 if (rtnl)
8781 rtnl_lock();
8782
8783 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8784 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8785 if (IS_ERR(rdev)) {
8786 if (rtnl)
8787 rtnl_unlock();
8788 return PTR_ERR(rdev);
8789 }
8790 info->user_ptr[0] = rdev;
1bf614ef
JB		 8791 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8792 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8793 ASSERT_RTNL();
8794
89a54e48
JB		 8795 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8796 info->attrs);
8797 if (IS_ERR(wdev)) {
4c476991
JB		 8798 if (rtnl)
8799 rtnl_unlock();
89a54e48 8800 return PTR_ERR(wdev);
4c476991 8801 }
89a54e48 8802
89a54e48
JB		 8803 dev = wdev->netdev;
8804 rdev = wiphy_to_dev(wdev->wiphy);
8805
1bf614ef
JB		 8806 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8807 if (!dev) {
1bf614ef
JB		 8808 if (rtnl)
8809 rtnl_unlock();
8810 return -EINVAL;
8811 }
8812
8813 info->user_ptr[1] = dev;
8814 } else {
8815 info->user_ptr[1] = wdev;
41265714 8816 }
1bf614ef
JB		 8817
8818 if (dev) {
8819 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8820 !netif_running(dev)) {
1bf614ef
JB		 8821 if (rtnl)
8822 rtnl_unlock();
8823 return -ENETDOWN;
8824 }
8825
8826 dev_hold(dev);
98104fde
JB		 8827 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8828 if (!wdev->p2p_started) {
98104fde
JB		 8829 if (rtnl)
8830 rtnl_unlock();
8831 return -ENETDOWN;
8832 }
41265714 8833 }
89a54e48 8834
4c476991 8835 info->user_ptr[0] = rdev;
4c476991
JB		 8836 }
8837
8838 return 0;
8839}
8840
8841static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8842 struct genl_info *info)
8843{
1bf614ef
JB		 8844 if (info->user_ptr[1]) {
8845 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8846 struct wireless_dev *wdev = info->user_ptr[1];
8847
8848 if (wdev->netdev)
8849 dev_put(wdev->netdev);
8850 } else {
8851 dev_put(info->user_ptr[1]);
8852 }
8853 }
4c476991
JB		 8854 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8855 rtnl_unlock();
8856}
8857
55682965
JB		 8858static struct genl_ops nl80211_ops[] = {
8859 {
8860 .cmd = NL80211_CMD_GET_WIPHY,
8861 .doit = nl80211_get_wiphy,
8862 .dumpit = nl80211_dump_wiphy,
86e8cf98 8863 .done = nl80211_dump_wiphy_done,
55682965
JB		 8864 .policy = nl80211_policy,
8865 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8866 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8867 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8868 },
8869 {
8870 .cmd = NL80211_CMD_SET_WIPHY,
8871 .doit = nl80211_set_wiphy,
8872 .policy = nl80211_policy,
8873 .flags = GENL_ADMIN_PERM,
4c476991 8874 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8875 },
8876 {
8877 .cmd = NL80211_CMD_GET_INTERFACE,
8878 .doit = nl80211_get_interface,
8879 .dumpit = nl80211_dump_interface,
8880 .policy = nl80211_policy,
8881 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8882 .internal_flags = NL80211_FLAG_NEED_WDEV |
8883 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8884 },
8885 {
8886 .cmd = NL80211_CMD_SET_INTERFACE,
8887 .doit = nl80211_set_interface,
8888 .policy = nl80211_policy,
8889 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8890 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8891 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8892 },
8893 {
8894 .cmd = NL80211_CMD_NEW_INTERFACE,
8895 .doit = nl80211_new_interface,
8896 .policy = nl80211_policy,
8897 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8898 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8899 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8900 },
8901 {
8902 .cmd = NL80211_CMD_DEL_INTERFACE,
8903 .doit = nl80211_del_interface,
8904 .policy = nl80211_policy,
41ade00f 8905 .flags = GENL_ADMIN_PERM,
84efbb84 8906 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8907 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8908 },
8909 {
8910 .cmd = NL80211_CMD_GET_KEY,
8911 .doit = nl80211_get_key,
8912 .policy = nl80211_policy,
8913 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8914 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8915 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8916 },
8917 {
8918 .cmd = NL80211_CMD_SET_KEY,
8919 .doit = nl80211_set_key,
8920 .policy = nl80211_policy,
8921 .flags = GENL_ADMIN_PERM,
41265714 8922 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8923 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8924 },
8925 {
8926 .cmd = NL80211_CMD_NEW_KEY,
8927 .doit = nl80211_new_key,
8928 .policy = nl80211_policy,
8929 .flags = GENL_ADMIN_PERM,
41265714 8930 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8931 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8932 },
8933 {
8934 .cmd = NL80211_CMD_DEL_KEY,
8935 .doit = nl80211_del_key,
8936 .policy = nl80211_policy,
55682965 8937 .flags = GENL_ADMIN_PERM,
41265714 8938 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8939 NL80211_FLAG_NEED_RTNL,
55682965 8940 },
ed1b6cc7
JB		 8941 {
8942 .cmd = NL80211_CMD_SET_BEACON,
8943 .policy = nl80211_policy,
8944 .flags = GENL_ADMIN_PERM,
8860020e 8945 .doit = nl80211_set_beacon,
2b5f8b0b 8946 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8947 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8948 },
8949 {
8860020e 8950 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8951 .policy = nl80211_policy,
8952 .flags = GENL_ADMIN_PERM,
8860020e 8953 .doit = nl80211_start_ap,
2b5f8b0b 8954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8955 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8956 },
8957 {
8860020e 8958 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8959 .policy = nl80211_policy,
8960 .flags = GENL_ADMIN_PERM,
8860020e 8961 .doit = nl80211_stop_ap,
2b5f8b0b 8962 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8963 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8964 },
5727ef1b
JB		 8965 {
8966 .cmd = NL80211_CMD_GET_STATION,
8967 .doit = nl80211_get_station,
2ec600d6 8968 .dumpit = nl80211_dump_station,
5727ef1b 8969 .policy = nl80211_policy,
4c476991
JB		 8970 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8971 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8972 },
8973 {
8974 .cmd = NL80211_CMD_SET_STATION,
8975 .doit = nl80211_set_station,
8976 .policy = nl80211_policy,
8977 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8979 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8980 },
8981 {
8982 .cmd = NL80211_CMD_NEW_STATION,
8983 .doit = nl80211_new_station,
8984 .policy = nl80211_policy,
8985 .flags = GENL_ADMIN_PERM,
41265714 8986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8987 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8988 },
8989 {
8990 .cmd = NL80211_CMD_DEL_STATION,
8991 .doit = nl80211_del_station,
8992 .policy = nl80211_policy,
2ec600d6 8993 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8995 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8996 },
8997 {
8998 .cmd = NL80211_CMD_GET_MPATH,
8999 .doit = nl80211_get_mpath,
9000 .dumpit = nl80211_dump_mpath,
9001 .policy = nl80211_policy,
9002 .flags = GENL_ADMIN_PERM,
41265714 9003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9004 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9005 },
9006 {
9007 .cmd = NL80211_CMD_SET_MPATH,
9008 .doit = nl80211_set_mpath,
9009 .policy = nl80211_policy,
9010 .flags = GENL_ADMIN_PERM,
41265714 9011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9012 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9013 },
9014 {
9015 .cmd = NL80211_CMD_NEW_MPATH,
9016 .doit = nl80211_new_mpath,
9017 .policy = nl80211_policy,
9018 .flags = GENL_ADMIN_PERM,
41265714 9019 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9020 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9021 },
9022 {
9023 .cmd = NL80211_CMD_DEL_MPATH,
9024 .doit = nl80211_del_mpath,
9025 .policy = nl80211_policy,
9f1ba906 9026 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9027 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9028 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9029 },
9030 {
9031 .cmd = NL80211_CMD_SET_BSS,
9032 .doit = nl80211_set_bss,
9033 .policy = nl80211_policy,
b2e1b302 9034 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9036 NL80211_FLAG_NEED_RTNL,
b2e1b302 9037 },
f130347c
LR		 9038 {
9039 .cmd = NL80211_CMD_GET_REG,
9040 .doit = nl80211_get_reg,
9041 .policy = nl80211_policy,
5fe231e8 9042 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9043 /* can be retrieved by unprivileged users */
9044 },
b2e1b302
LR		 9045 {
9046 .cmd = NL80211_CMD_SET_REG,
9047 .doit = nl80211_set_reg,
9048 .policy = nl80211_policy,
9049 .flags = GENL_ADMIN_PERM,
5fe231e8 9050 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9051 },
9052 {
9053 .cmd = NL80211_CMD_REQ_SET_REG,
9054 .doit = nl80211_req_set_reg,
9055 .policy = nl80211_policy,
93da9cc1 9056 .flags = GENL_ADMIN_PERM,
9057 },
9058 {
24bdd9f4
JC		 9059 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9060 .doit = nl80211_get_mesh_config,
93da9cc1 9061 .policy = nl80211_policy,
9062 /* can be retrieved by unprivileged users */
2b5f8b0b 9063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9064 NL80211_FLAG_NEED_RTNL,
93da9cc1 9065 },
9066 {
24bdd9f4
JC		 9067 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9068 .doit = nl80211_update_mesh_config,
93da9cc1 9069 .policy = nl80211_policy,
9aed3cc1 9070 .flags = GENL_ADMIN_PERM,
29cbe68c 9071 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9072 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9073 },
2a519311
JB		 9074 {
9075 .cmd = NL80211_CMD_TRIGGER_SCAN,
9076 .doit = nl80211_trigger_scan,
9077 .policy = nl80211_policy,
9078 .flags = GENL_ADMIN_PERM,
fd014284 9079 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9080 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9081 },
9082 {
9083 .cmd = NL80211_CMD_GET_SCAN,
9084 .policy = nl80211_policy,
9085 .dumpit = nl80211_dump_scan,
9086 },
807f8a8c
LC		 9087 {
9088 .cmd = NL80211_CMD_START_SCHED_SCAN,
9089 .doit = nl80211_start_sched_scan,
9090 .policy = nl80211_policy,
9091 .flags = GENL_ADMIN_PERM,
9092 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9093 NL80211_FLAG_NEED_RTNL,
9094 },
9095 {
9096 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9097 .doit = nl80211_stop_sched_scan,
9098 .policy = nl80211_policy,
9099 .flags = GENL_ADMIN_PERM,
9100 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9101 NL80211_FLAG_NEED_RTNL,
9102 },
636a5d36
JM		 9103 {
9104 .cmd = NL80211_CMD_AUTHENTICATE,
9105 .doit = nl80211_authenticate,
9106 .policy = nl80211_policy,
9107 .flags = GENL_ADMIN_PERM,
41265714 9108 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9109 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9110 },
9111 {
9112 .cmd = NL80211_CMD_ASSOCIATE,
9113 .doit = nl80211_associate,
9114 .policy = nl80211_policy,
9115 .flags = GENL_ADMIN_PERM,
41265714 9116 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9117 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9118 },
9119 {
9120 .cmd = NL80211_CMD_DEAUTHENTICATE,
9121 .doit = nl80211_deauthenticate,
9122 .policy = nl80211_policy,
9123 .flags = GENL_ADMIN_PERM,
41265714 9124 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9125 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9126 },
9127 {
9128 .cmd = NL80211_CMD_DISASSOCIATE,
9129 .doit = nl80211_disassociate,
9130 .policy = nl80211_policy,
9131 .flags = GENL_ADMIN_PERM,
41265714 9132 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9133 NL80211_FLAG_NEED_RTNL,
636a5d36 9134 },
04a773ad
JB		 9135 {
9136 .cmd = NL80211_CMD_JOIN_IBSS,
9137 .doit = nl80211_join_ibss,
9138 .policy = nl80211_policy,
9139 .flags = GENL_ADMIN_PERM,
41265714 9140 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9141 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9142 },
9143 {
9144 .cmd = NL80211_CMD_LEAVE_IBSS,
9145 .doit = nl80211_leave_ibss,
9146 .policy = nl80211_policy,
9147 .flags = GENL_ADMIN_PERM,
41265714 9148 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9149 NL80211_FLAG_NEED_RTNL,
04a773ad 9150 },
aff89a9b
JB		 9151#ifdef CONFIG_NL80211_TESTMODE
9152 {
9153 .cmd = NL80211_CMD_TESTMODE,
9154 .doit = nl80211_testmode_do,
71063f0e 9155 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9156 .policy = nl80211_policy,
9157 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9158 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9159 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9160 },
9161#endif
b23aa676
SO		 9162 {
9163 .cmd = NL80211_CMD_CONNECT,
9164 .doit = nl80211_connect,
9165 .policy = nl80211_policy,
9166 .flags = GENL_ADMIN_PERM,
41265714 9167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9168 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9169 },
9170 {
9171 .cmd = NL80211_CMD_DISCONNECT,
9172 .doit = nl80211_disconnect,
9173 .policy = nl80211_policy,
9174 .flags = GENL_ADMIN_PERM,
41265714 9175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9176 NL80211_FLAG_NEED_RTNL,
b23aa676 9177 },
463d0183
JB		 9178 {
9179 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9180 .doit = nl80211_wiphy_netns,
9181 .policy = nl80211_policy,
9182 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9183 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9184 NL80211_FLAG_NEED_RTNL,
463d0183 9185 },
61fa713c
HS		 9186 {
9187 .cmd = NL80211_CMD_GET_SURVEY,
9188 .policy = nl80211_policy,
9189 .dumpit = nl80211_dump_survey,
9190 },
67fbb16b
SO		 9191 {
9192 .cmd = NL80211_CMD_SET_PMKSA,
9193 .doit = nl80211_setdel_pmksa,
9194 .policy = nl80211_policy,
9195 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9196 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9197 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9198 },
9199 {
9200 .cmd = NL80211_CMD_DEL_PMKSA,
9201 .doit = nl80211_setdel_pmksa,
9202 .policy = nl80211_policy,
9203 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9204 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9205 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9206 },
9207 {
9208 .cmd = NL80211_CMD_FLUSH_PMKSA,
9209 .doit = nl80211_flush_pmksa,
9210 .policy = nl80211_policy,
9211 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9212 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9213 NL80211_FLAG_NEED_RTNL,
67fbb16b 9214 },
9588bbd5
JM		 9215 {
9216 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9217 .doit = nl80211_remain_on_channel,
9218 .policy = nl80211_policy,
9219 .flags = GENL_ADMIN_PERM,
71bbc994 9220 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9221 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9222 },
9223 {
9224 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9225 .doit = nl80211_cancel_remain_on_channel,
9226 .policy = nl80211_policy,
9227 .flags = GENL_ADMIN_PERM,
71bbc994 9228 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9229 NL80211_FLAG_NEED_RTNL,
9588bbd5 9230 },
13ae75b1
JM		 9231 {
9232 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9233 .doit = nl80211_set_tx_bitrate_mask,
9234 .policy = nl80211_policy,
9235 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9236 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9237 NL80211_FLAG_NEED_RTNL,
13ae75b1 9238 },
026331c4 9239 {
2e161f78
JB		 9240 .cmd = NL80211_CMD_REGISTER_FRAME,
9241 .doit = nl80211_register_mgmt,
026331c4
JM		 9242 .policy = nl80211_policy,
9243 .flags = GENL_ADMIN_PERM,
71bbc994 9244 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9245 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9246 },
9247 {
2e161f78
JB		 9248 .cmd = NL80211_CMD_FRAME,
9249 .doit = nl80211_tx_mgmt,
026331c4 9250 .policy = nl80211_policy,
f7ca38df 9251 .flags = GENL_ADMIN_PERM,
71bbc994 9252 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9253 NL80211_FLAG_NEED_RTNL,
9254 },
9255 {
9256 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9257 .doit = nl80211_tx_mgmt_cancel_wait,
9258 .policy = nl80211_policy,
026331c4 9259 .flags = GENL_ADMIN_PERM,
71bbc994 9260 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9261 NL80211_FLAG_NEED_RTNL,
026331c4 9262 },
ffb9eb3d
KV		 9263 {
9264 .cmd = NL80211_CMD_SET_POWER_SAVE,
9265 .doit = nl80211_set_power_save,
9266 .policy = nl80211_policy,
9267 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9268 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9269 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9270 },
9271 {
9272 .cmd = NL80211_CMD_GET_POWER_SAVE,
9273 .doit = nl80211_get_power_save,
9274 .policy = nl80211_policy,
9275 /* can be retrieved by unprivileged users */
4c476991
JB		 9276 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9277 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9278 },
d6dc1a38
JO		 9279 {
9280 .cmd = NL80211_CMD_SET_CQM,
9281 .doit = nl80211_set_cqm,
9282 .policy = nl80211_policy,
9283 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9284 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9285 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9286 },
f444de05
JB		 9287 {
9288 .cmd = NL80211_CMD_SET_CHANNEL,
9289 .doit = nl80211_set_channel,
9290 .policy = nl80211_policy,
9291 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9292 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9293 NL80211_FLAG_NEED_RTNL,
f444de05 9294 },
e8347eba
BJ		 9295 {
9296 .cmd = NL80211_CMD_SET_WDS_PEER,
9297 .doit = nl80211_set_wds_peer,
9298 .policy = nl80211_policy,
9299 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9300 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9301 NL80211_FLAG_NEED_RTNL,
e8347eba 9302 },
29cbe68c
JB		 9303 {
9304 .cmd = NL80211_CMD_JOIN_MESH,
9305 .doit = nl80211_join_mesh,
9306 .policy = nl80211_policy,
9307 .flags = GENL_ADMIN_PERM,
9308 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9309 NL80211_FLAG_NEED_RTNL,
9310 },
9311 {
9312 .cmd = NL80211_CMD_LEAVE_MESH,
9313 .doit = nl80211_leave_mesh,
9314 .policy = nl80211_policy,
9315 .flags = GENL_ADMIN_PERM,
9316 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9317 NL80211_FLAG_NEED_RTNL,
9318 },
dfb89c56 9319#ifdef CONFIG_PM
ff1b6e69
JB		 9320 {
9321 .cmd = NL80211_CMD_GET_WOWLAN,
9322 .doit = nl80211_get_wowlan,
9323 .policy = nl80211_policy,
9324 /* can be retrieved by unprivileged users */
9325 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9326 NL80211_FLAG_NEED_RTNL,
9327 },
9328 {
9329 .cmd = NL80211_CMD_SET_WOWLAN,
9330 .doit = nl80211_set_wowlan,
9331 .policy = nl80211_policy,
9332 .flags = GENL_ADMIN_PERM,
9333 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9334 NL80211_FLAG_NEED_RTNL,
9335 },
dfb89c56 9336#endif
e5497d76
JB		 9337 {
9338 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9339 .doit = nl80211_set_rekey_data,
9340 .policy = nl80211_policy,
9341 .flags = GENL_ADMIN_PERM,
9342 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9343 NL80211_FLAG_NEED_RTNL,
9344 },
109086ce
AN		 9345 {
9346 .cmd = NL80211_CMD_TDLS_MGMT,
9347 .doit = nl80211_tdls_mgmt,
9348 .policy = nl80211_policy,
9349 .flags = GENL_ADMIN_PERM,
9350 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9351 NL80211_FLAG_NEED_RTNL,
9352 },
9353 {
9354 .cmd = NL80211_CMD_TDLS_OPER,
9355 .doit = nl80211_tdls_oper,
9356 .policy = nl80211_policy,
9357 .flags = GENL_ADMIN_PERM,
9358 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9359 NL80211_FLAG_NEED_RTNL,
9360 },
28946da7
JB		 9361 {
9362 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9363 .doit = nl80211_register_unexpected_frame,
9364 .policy = nl80211_policy,
9365 .flags = GENL_ADMIN_PERM,
9366 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9367 NL80211_FLAG_NEED_RTNL,
9368 },
7f6cf311
JB		 9369 {
9370 .cmd = NL80211_CMD_PROBE_CLIENT,
9371 .doit = nl80211_probe_client,
9372 .policy = nl80211_policy,
9373 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9375 NL80211_FLAG_NEED_RTNL,
9376 },
5e760230
JB		 9377 {
9378 .cmd = NL80211_CMD_REGISTER_BEACONS,
9379 .doit = nl80211_register_beacons,
9380 .policy = nl80211_policy,
9381 .flags = GENL_ADMIN_PERM,
9382 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9383 NL80211_FLAG_NEED_RTNL,
9384 },
1d9d9213
SW		 9385 {
9386 .cmd = NL80211_CMD_SET_NOACK_MAP,
9387 .doit = nl80211_set_noack_map,
9388 .policy = nl80211_policy,
9389 .flags = GENL_ADMIN_PERM,
9390 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9391 NL80211_FLAG_NEED_RTNL,
9392 },
98104fde
JB		 9393 {
9394 .cmd = NL80211_CMD_START_P2P_DEVICE,
9395 .doit = nl80211_start_p2p_device,
9396 .policy = nl80211_policy,
9397 .flags = GENL_ADMIN_PERM,
9398 .internal_flags = NL80211_FLAG_NEED_WDEV |
9399 NL80211_FLAG_NEED_RTNL,
9400 },
9401 {
9402 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9403 .doit = nl80211_stop_p2p_device,
9404 .policy = nl80211_policy,
9405 .flags = GENL_ADMIN_PERM,
9406 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9407 NL80211_FLAG_NEED_RTNL,
9408 },
f4e583c8
AQ		 9409 {
9410 .cmd = NL80211_CMD_SET_MCAST_RATE,
9411 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9412 .policy = nl80211_policy,
9413 .flags = GENL_ADMIN_PERM,
9414 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9415 NL80211_FLAG_NEED_RTNL,
9416 },
9417 {
9418 .cmd = NL80211_CMD_SET_MAC_ACL,
9419 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9420 .policy = nl80211_policy,
9421 .flags = GENL_ADMIN_PERM,
9422 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9423 NL80211_FLAG_NEED_RTNL,
9424 },
04f39047
SW		 9425 {
9426 .cmd = NL80211_CMD_RADAR_DETECT,
9427 .doit = nl80211_start_radar_detection,
9428 .policy = nl80211_policy,
9429 .flags = GENL_ADMIN_PERM,
9430 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9431 NL80211_FLAG_NEED_RTNL,
9432 },
3713b4e3
JB		 9433 {
9434 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9435 .doit = nl80211_get_protocol_features,
9436 .policy = nl80211_policy,
9437 },
355199e0
JM		 9438 {
9439 .cmd = NL80211_CMD_UPDATE_FT_IES,
9440 .doit = nl80211_update_ft_ies,
9441 .policy = nl80211_policy,
9442 .flags = GENL_ADMIN_PERM,
9443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9444 NL80211_FLAG_NEED_RTNL,
9445 },
5de17984
AS		 9446 {
9447 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9448 .doit = nl80211_crit_protocol_start,
9449 .policy = nl80211_policy,
9450 .flags = GENL_ADMIN_PERM,
9451 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9452 NL80211_FLAG_NEED_RTNL,
9453 },
9454 {
9455 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9456 .doit = nl80211_crit_protocol_stop,
9457 .policy = nl80211_policy,
9458 .flags = GENL_ADMIN_PERM,
9459 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9460 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9461 },
9462 {
9463 .cmd = NL80211_CMD_GET_COALESCE,
9464 .doit = nl80211_get_coalesce,
9465 .policy = nl80211_policy,
9466 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9467 NL80211_FLAG_NEED_RTNL,
9468 },
9469 {
9470 .cmd = NL80211_CMD_SET_COALESCE,
9471 .doit = nl80211_set_coalesce,
9472 .policy = nl80211_policy,
9473 .flags = GENL_ADMIN_PERM,
9474 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9475 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 9476 },
9477 {
9478 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9479 .doit = nl80211_channel_switch,
9480 .policy = nl80211_policy,
9481 .flags = GENL_ADMIN_PERM,
9482 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9483 NL80211_FLAG_NEED_RTNL,
9484 },
55682965 9485};
9588bbd5 9486
6039f6d2
JM		 9487static struct genl_multicast_group nl80211_mlme_mcgrp = {
9488 .name = "mlme",
9489};
55682965
JB		 9490
9491/* multicast groups */
9492static struct genl_multicast_group nl80211_config_mcgrp = {
9493 .name = "config",
9494};
2a519311
JB		 9495static struct genl_multicast_group nl80211_scan_mcgrp = {
9496 .name = "scan",
9497};
73d54c9e
LR		 9498static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9499 .name = "regulatory",
9500};
55682965
JB		 9501
9502/* notification functions */
9503
9504void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9505{
9506 struct sk_buff *msg;
86e8cf98 9507 struct nl80211_dump_wiphy_state state = {};
55682965 9508
fd2120ca 9509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9510 if (!msg)
9511 return;
9512
86e8cf98 9513 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 9514 nlmsg_free(msg);
9515 return;
9516 }
9517
463d0183
JB		 9518 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9519 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 9520}
9521
362a415d
JB		 9522static int nl80211_add_scan_req(struct sk_buff *msg,
9523 struct cfg80211_registered_device *rdev)
9524{
9525 struct cfg80211_scan_request *req = rdev->scan_req;
9526 struct nlattr *nest;
9527 int i;
9528
9529 if (WARN_ON(!req))
9530 return 0;
9531
9532 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9533 if (!nest)
9534 goto nla_put_failure;
9360ffd1
DM		 9535 for (i = 0; i < req->n_ssids; i++) {
9536 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9537 goto nla_put_failure;
9538 }
362a415d
JB		 9539 nla_nest_end(msg, nest);
9540
9541 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9542 if (!nest)
9543 goto nla_put_failure;
9360ffd1
DM		 9544 for (i = 0; i < req->n_channels; i++) {
9545 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9546 goto nla_put_failure;
9547 }
362a415d
JB		 9548 nla_nest_end(msg, nest);
9549
9360ffd1
DM		 9550 if (req->ie &&
9551 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9552 goto nla_put_failure;
362a415d 9553
ed473771
SL		 9554 if (req->flags)
9555 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9556
362a415d
JB		 9557 return 0;
9558 nla_put_failure:
9559 return -ENOBUFS;
9560}
9561
a538e2d5
JB		 9562static int nl80211_send_scan_msg(struct sk_buff *msg,
9563 struct cfg80211_registered_device *rdev,
fd014284 9564 struct wireless_dev *wdev,
15e47304 9565 u32 portid, u32 seq, int flags,
a538e2d5 9566 u32 cmd)
2a519311
JB		 9567{
9568 void *hdr;
9569
15e47304 9570 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9571 if (!hdr)
9572 return -1;
9573
9360ffd1 9574 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9575 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9576 wdev->netdev->ifindex)) ||
9577 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9578 goto nla_put_failure;
2a519311 9579
362a415d
JB		 9580 /* ignore errors and send incomplete event anyway */
9581 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9582
9583 return genlmsg_end(msg, hdr);
9584
9585 nla_put_failure:
9586 genlmsg_cancel(msg, hdr);
9587 return -EMSGSIZE;
9588}
9589
807f8a8c
LC		 9590static int
9591nl80211_send_sched_scan_msg(struct sk_buff *msg,
9592 struct cfg80211_registered_device *rdev,
9593 struct net_device *netdev,
15e47304 9594 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9595{
9596 void *hdr;
9597
15e47304 9598 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9599 if (!hdr)
9600 return -1;
9601
9360ffd1
DM		 9602 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9603 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9604 goto nla_put_failure;
807f8a8c
LC		 9605
9606 return genlmsg_end(msg, hdr);
9607
9608 nla_put_failure:
9609 genlmsg_cancel(msg, hdr);
9610 return -EMSGSIZE;
9611}
9612
a538e2d5 9613void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9614 struct wireless_dev *wdev)
a538e2d5
JB		 9615{
9616 struct sk_buff *msg;
9617
58050fce 9618 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9619 if (!msg)
9620 return;
9621
fd014284 9622 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9623 NL80211_CMD_TRIGGER_SCAN) < 0) {
9624 nlmsg_free(msg);
9625 return;
9626 }
9627
463d0183
JB		 9628 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9629 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9630}
9631
2a519311 9632void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9633 struct wireless_dev *wdev)
2a519311
JB		 9634{
9635 struct sk_buff *msg;
9636
fd2120ca 9637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9638 if (!msg)
9639 return;
9640
fd014284 9641 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9642 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9643 nlmsg_free(msg);
9644 return;
9645 }
9646
463d0183
JB		 9647 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9648 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9649}
9650
9651void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9652 struct wireless_dev *wdev)
2a519311
JB		 9653{
9654 struct sk_buff *msg;
9655
fd2120ca 9656 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9657 if (!msg)
9658 return;
9659
fd014284 9660 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9661 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9662 nlmsg_free(msg);
9663 return;
9664 }
9665
463d0183
JB		 9666 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9667 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9668}
9669
807f8a8c
LC		 9670void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9671 struct net_device *netdev)
9672{
9673 struct sk_buff *msg;
9674
9675 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9676 if (!msg)
9677 return;
9678
9679 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9680 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9681 nlmsg_free(msg);
9682 return;
9683 }
9684
9685 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9686 nl80211_scan_mcgrp.id, GFP_KERNEL);
9687}
9688
9689void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9690 struct net_device *netdev, u32 cmd)
9691{
9692 struct sk_buff *msg;
9693
58050fce 9694 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9695 if (!msg)
9696 return;
9697
9698 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9699 nlmsg_free(msg);
9700 return;
9701 }
9702
9703 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9704 nl80211_scan_mcgrp.id, GFP_KERNEL);
9705}
9706
73d54c9e
LR		 9707/*
9708 * This can happen on global regulatory changes or device specific settings
9709 * based on custom world regulatory domains.
9710 */
9711void nl80211_send_reg_change_event(struct regulatory_request *request)
9712{
9713 struct sk_buff *msg;
9714 void *hdr;
9715
fd2120ca 9716 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9717 if (!msg)
9718 return;
9719
9720 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9721 if (!hdr) {
9722 nlmsg_free(msg);
9723 return;
9724 }
9725
9726 /* Userspace can always count this one always being set */
9360ffd1
DM		 9727 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9728 goto nla_put_failure;
9729
9730 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9731 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9732 NL80211_REGDOM_TYPE_WORLD))
9733 goto nla_put_failure;
9734 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9735 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9736 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9737 goto nla_put_failure;
9738 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9739 request->intersect) {
9740 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9741 NL80211_REGDOM_TYPE_INTERSECTION))
9742 goto nla_put_failure;
9743 } else {
9744 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9745 NL80211_REGDOM_TYPE_COUNTRY) ||
9746 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9747 request->alpha2))
9748 goto nla_put_failure;
9749 }
9750
f4173766 9751 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9752 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9753 goto nla_put_failure;
73d54c9e 9754
3b7b72ee 9755 genlmsg_end(msg, hdr);
73d54c9e 9756
bc43b28c 9757 rcu_read_lock();
463d0183 9758 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9759 GFP_ATOMIC);
9760 rcu_read_unlock();
73d54c9e
LR		 9761
9762 return;
9763
9764nla_put_failure:
9765 genlmsg_cancel(msg, hdr);
9766 nlmsg_free(msg);
9767}
9768
6039f6d2
JM		 9769static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9770 struct net_device *netdev,
9771 const u8 *buf, size_t len,
e6d6e342 9772 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9773{
9774 struct sk_buff *msg;
9775 void *hdr;
9776
e6d6e342 9777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9778 if (!msg)
9779 return;
9780
9781 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9782 if (!hdr) {
9783 nlmsg_free(msg);
9784 return;
9785 }
9786
9360ffd1
DM		 9787 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9788 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9789 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9790 goto nla_put_failure;
6039f6d2 9791
3b7b72ee 9792 genlmsg_end(msg, hdr);
6039f6d2 9793
463d0183
JB		 9794 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9795 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9796 return;
9797
9798 nla_put_failure:
9799 genlmsg_cancel(msg, hdr);
9800 nlmsg_free(msg);
9801}
9802
9803void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9804 struct net_device *netdev, const u8 *buf,
9805 size_t len, gfp_t gfp)
6039f6d2
JM		 9806{
9807 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9808 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9809}
9810
9811void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9812 struct net_device *netdev, const u8 *buf,
e6d6e342 9813 size_t len, gfp_t gfp)
6039f6d2 9814{
e6d6e342
JB		 9815 nl80211_send_mlme_event(rdev, netdev, buf, len,
9816 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9817}
9818
53b46b84 9819void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9820 struct net_device *netdev, const u8 *buf,
9821 size_t len, gfp_t gfp)
6039f6d2
JM		 9822{
9823 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9824 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9825}
9826
53b46b84
JM		 9827void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9828 struct net_device *netdev, const u8 *buf,
e6d6e342 9829 size_t len, gfp_t gfp)
6039f6d2
JM		 9830{
9831 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9832 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9833}
9834
6ff57cf8
JB		 9835void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9836 size_t len)
cf4e594e 9837{
947add36
JB		 9838 struct wireless_dev *wdev = dev->ieee80211_ptr;
9839 struct wiphy *wiphy = wdev->wiphy;
9840 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 9841 const struct ieee80211_mgmt *mgmt = (void *)buf;
9842 u32 cmd;
947add36 9843
6ff57cf8
JB		 9844 if (WARN_ON(len < 2))
9845 return;
cf4e594e 9846
6ff57cf8
JB		 9847 if (ieee80211_is_deauth(mgmt->frame_control))
9848 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9849 else
9850 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 9851
6ff57cf8
JB		 9852 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9853 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 9854}
6ff57cf8 9855EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 9856
1b06bb40
LR		 9857static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9858 struct net_device *netdev, int cmd,
e6d6e342 9859 const u8 *addr, gfp_t gfp)
1965c853
JM		 9860{
9861 struct sk_buff *msg;
9862 void *hdr;
9863
e6d6e342 9864 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9865 if (!msg)
9866 return;
9867
9868 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9869 if (!hdr) {
9870 nlmsg_free(msg);
9871 return;
9872 }
9873
9360ffd1
DM		 9874 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9875 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9876 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9877 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9878 goto nla_put_failure;
1965c853 9879
3b7b72ee 9880 genlmsg_end(msg, hdr);
1965c853 9881
463d0183
JB		 9882 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9883 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9884 return;
9885
9886 nla_put_failure:
9887 genlmsg_cancel(msg, hdr);
9888 nlmsg_free(msg);
9889}
9890
9891void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9892 struct net_device *netdev, const u8 *addr,
9893 gfp_t gfp)
1965c853
JM		 9894{
9895 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9896 addr, gfp);
1965c853
JM		 9897}
9898
9899void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9900 struct net_device *netdev, const u8 *addr,
9901 gfp_t gfp)
1965c853 9902{
e6d6e342
JB		 9903 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9904 addr, gfp);
1965c853
JM		 9905}
9906
b23aa676
SO		 9907void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9908 struct net_device *netdev, const u8 *bssid,
9909 const u8 *req_ie, size_t req_ie_len,
9910 const u8 *resp_ie, size_t resp_ie_len,
9911 u16 status, gfp_t gfp)
9912{
9913 struct sk_buff *msg;
9914 void *hdr;
9915
58050fce 9916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9917 if (!msg)
9918 return;
9919
9920 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9921 if (!hdr) {
9922 nlmsg_free(msg);
9923 return;
9924 }
9925
9360ffd1
DM		 9926 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9927 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9928 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9929 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9930 (req_ie &&
9931 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9932 (resp_ie &&
9933 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9934 goto nla_put_failure;
b23aa676 9935
3b7b72ee 9936 genlmsg_end(msg, hdr);
b23aa676 9937
463d0183
JB		 9938 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9939 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9940 return;
9941
9942 nla_put_failure:
9943 genlmsg_cancel(msg, hdr);
9944 nlmsg_free(msg);
9945
9946}
9947
9948void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9949 struct net_device *netdev, const u8 *bssid,
9950 const u8 *req_ie, size_t req_ie_len,
9951 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9952{
9953 struct sk_buff *msg;
9954 void *hdr;
9955
58050fce 9956 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9957 if (!msg)
9958 return;
9959
9960 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9961 if (!hdr) {
9962 nlmsg_free(msg);
9963 return;
9964 }
9965
9360ffd1
DM		 9966 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9967 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9968 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9969 (req_ie &&
9970 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9971 (resp_ie &&
9972 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9973 goto nla_put_failure;
b23aa676 9974
3b7b72ee 9975 genlmsg_end(msg, hdr);
b23aa676 9976
463d0183
JB		 9977 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9978 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9979 return;
9980
9981 nla_put_failure:
9982 genlmsg_cancel(msg, hdr);
9983 nlmsg_free(msg);
9984
9985}
9986
9987void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9988 struct net_device *netdev, u16 reason,
667503dd 9989 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9990{
9991 struct sk_buff *msg;
9992 void *hdr;
9993
58050fce 9994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9995 if (!msg)
9996 return;
9997
9998 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9999 if (!hdr) {
10000 nlmsg_free(msg);
10001 return;
10002 }
10003
9360ffd1
DM		 10004 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10005 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10006 (from_ap && reason &&
10007 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10008 (from_ap &&
10009 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10010 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10011 goto nla_put_failure;
b23aa676 10012
3b7b72ee 10013 genlmsg_end(msg, hdr);
b23aa676 10014
463d0183
JB		 10015 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10016 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 10017 return;
10018
10019 nla_put_failure:
10020 genlmsg_cancel(msg, hdr);
10021 nlmsg_free(msg);
10022
10023}
10024
04a773ad
JB		 10025void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10026 struct net_device *netdev, const u8 *bssid,
10027 gfp_t gfp)
10028{
10029 struct sk_buff *msg;
10030 void *hdr;
10031
fd2120ca 10032 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10033 if (!msg)
10034 return;
10035
10036 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10037 if (!hdr) {
10038 nlmsg_free(msg);
10039 return;
10040 }
10041
9360ffd1
DM		 10042 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10043 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10044 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10045 goto nla_put_failure;
04a773ad 10046
3b7b72ee 10047 genlmsg_end(msg, hdr);
04a773ad 10048
463d0183
JB		 10049 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10050 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 10051 return;
10052
10053 nla_put_failure:
10054 genlmsg_cancel(msg, hdr);
10055 nlmsg_free(msg);
10056}
10057
947add36
JB		 10058void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10059 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10060{
947add36
JB		 10061 struct wireless_dev *wdev = dev->ieee80211_ptr;
10062 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10063 struct sk_buff *msg;
10064 void *hdr;
10065
947add36
JB		 10066 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10067 return;
10068
10069 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10070
c93b5e71
JC		 10071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10072 if (!msg)
10073 return;
10074
10075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10076 if (!hdr) {
10077 nlmsg_free(msg);
10078 return;
10079 }
10080
9360ffd1 10081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10083 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10084 (ie_len && ie &&
10085 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10086 goto nla_put_failure;
c93b5e71 10087
3b7b72ee 10088 genlmsg_end(msg, hdr);
c93b5e71
JC		 10089
10090 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10091 nl80211_mlme_mcgrp.id, gfp);
10092 return;
10093
10094 nla_put_failure:
10095 genlmsg_cancel(msg, hdr);
10096 nlmsg_free(msg);
10097}
947add36 10098EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10099
a3b8b056
JM		 10100void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10101 struct net_device *netdev, const u8 *addr,
10102 enum nl80211_key_type key_type, int key_id,
e6d6e342 10103 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10104{
10105 struct sk_buff *msg;
10106 void *hdr;
10107
e6d6e342 10108 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10109 if (!msg)
10110 return;
10111
10112 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10113 if (!hdr) {
10114 nlmsg_free(msg);
10115 return;
10116 }
10117
9360ffd1
DM		 10118 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10119 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10120 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10121 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10122 (key_id != -1 &&
10123 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10124 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10125 goto nla_put_failure;
a3b8b056 10126
3b7b72ee 10127 genlmsg_end(msg, hdr);
a3b8b056 10128
463d0183
JB		 10129 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10130 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 10131 return;
10132
10133 nla_put_failure:
10134 genlmsg_cancel(msg, hdr);
10135 nlmsg_free(msg);
10136}
10137
6bad8766
LR		 10138void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10139 struct ieee80211_channel *channel_before,
10140 struct ieee80211_channel *channel_after)
10141{
10142 struct sk_buff *msg;
10143 void *hdr;
10144 struct nlattr *nl_freq;
10145
fd2120ca 10146 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10147 if (!msg)
10148 return;
10149
10150 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10151 if (!hdr) {
10152 nlmsg_free(msg);
10153 return;
10154 }
10155
10156 /*
10157 * Since we are applying the beacon hint to a wiphy we know its
10158 * wiphy_idx is valid
10159 */
9360ffd1
DM		 10160 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10161 goto nla_put_failure;
6bad8766
LR		 10162
10163 /* Before */
10164 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10165 if (!nl_freq)
10166 goto nla_put_failure;
cdc89b97 10167 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10168 goto nla_put_failure;
10169 nla_nest_end(msg, nl_freq);
10170
10171 /* After */
10172 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10173 if (!nl_freq)
10174 goto nla_put_failure;
cdc89b97 10175 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10176 goto nla_put_failure;
10177 nla_nest_end(msg, nl_freq);
10178
3b7b72ee 10179 genlmsg_end(msg, hdr);
6bad8766 10180
463d0183
JB		 10181 rcu_read_lock();
10182 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
10183 GFP_ATOMIC);
10184 rcu_read_unlock();
6bad8766
LR		 10185
10186 return;
10187
10188nla_put_failure:
10189 genlmsg_cancel(msg, hdr);
10190 nlmsg_free(msg);
10191}
10192
9588bbd5
JM		 10193static void nl80211_send_remain_on_chan_event(
10194 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10195 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10196 struct ieee80211_channel *chan,
9588bbd5
JM		 10197 unsigned int duration, gfp_t gfp)
10198{
10199 struct sk_buff *msg;
10200 void *hdr;
10201
10202 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10203 if (!msg)
10204 return;
10205
10206 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10207 if (!hdr) {
10208 nlmsg_free(msg);
10209 return;
10210 }
10211
9360ffd1 10212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10213 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10214 wdev->netdev->ifindex)) ||
00f53350 10215 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10216 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10217 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10218 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10219 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10220 goto nla_put_failure;
9588bbd5 10221
9360ffd1
DM		 10222 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10223 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10224 goto nla_put_failure;
9588bbd5 10225
3b7b72ee 10226 genlmsg_end(msg, hdr);
9588bbd5
JM		 10227
10228 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10229 nl80211_mlme_mcgrp.id, gfp);
10230 return;
10231
10232 nla_put_failure:
10233 genlmsg_cancel(msg, hdr);
10234 nlmsg_free(msg);
10235}
10236
947add36
JB		 10237void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10238 struct ieee80211_channel *chan,
10239 unsigned int duration, gfp_t gfp)
9588bbd5 10240{
947add36
JB		 10241 struct wiphy *wiphy = wdev->wiphy;
10242 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10243
10244 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10245 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10246 rdev, wdev, cookie, chan,
42d97a59 10247 duration, gfp);
9588bbd5 10248}
947add36 10249EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10250
947add36
JB		 10251void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10252 struct ieee80211_channel *chan,
10253 gfp_t gfp)
9588bbd5 10254{
947add36
JB		 10255 struct wiphy *wiphy = wdev->wiphy;
10256 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10257
10258 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10259 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10260 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10261}
947add36 10262EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10263
947add36
JB		 10264void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10265 struct station_info *sinfo, gfp_t gfp)
98b62183 10266{
947add36
JB		 10267 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10268 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10269 struct sk_buff *msg;
10270
947add36
JB		 10271 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10272
58050fce 10273 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10274 if (!msg)
10275 return;
10276
66266b3a
JL		 10277 if (nl80211_send_station(msg, 0, 0, 0,
10278 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10279 nlmsg_free(msg);
10280 return;
10281 }
10282
10283 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10284 nl80211_mlme_mcgrp.id, gfp);
10285}
947add36 10286EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10287
947add36 10288void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10289{
947add36
JB		 10290 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10291 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10292 struct sk_buff *msg;
10293 void *hdr;
10294
947add36
JB		 10295 trace_cfg80211_del_sta(dev, mac_addr);
10296
58050fce 10297 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10298 if (!msg)
10299 return;
10300
10301 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10302 if (!hdr) {
10303 nlmsg_free(msg);
10304 return;
10305 }
10306
9360ffd1
DM		 10307 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10308 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10309 goto nla_put_failure;
ec15e68b 10310
3b7b72ee 10311 genlmsg_end(msg, hdr);
ec15e68b
JM		 10312
10313 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10314 nl80211_mlme_mcgrp.id, gfp);
10315 return;
10316
10317 nla_put_failure:
10318 genlmsg_cancel(msg, hdr);
10319 nlmsg_free(msg);
10320}
947add36 10321EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10322
947add36
JB		 10323void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10324 enum nl80211_connect_failed_reason reason,
10325 gfp_t gfp)
ed44a951 10326{
947add36
JB		 10327 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10328 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10329 struct sk_buff *msg;
10330 void *hdr;
10331
10332 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10333 if (!msg)
10334 return;
10335
10336 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10337 if (!hdr) {
10338 nlmsg_free(msg);
10339 return;
10340 }
10341
10342 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10343 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10344 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10345 goto nla_put_failure;
10346
10347 genlmsg_end(msg, hdr);
10348
10349 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10350 nl80211_mlme_mcgrp.id, gfp);
10351 return;
10352
10353 nla_put_failure:
10354 genlmsg_cancel(msg, hdr);
10355 nlmsg_free(msg);
10356}
947add36 10357EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10358
b92ab5d8
JB		 10359static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10360 const u8 *addr, gfp_t gfp)
28946da7
JB		 10361{
10362 struct wireless_dev *wdev = dev->ieee80211_ptr;
10363 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10364 struct sk_buff *msg;
10365 void *hdr;
15e47304 10366 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10367
15e47304 10368 if (!nlportid)
28946da7
JB		 10369 return false;
10370
10371 msg = nlmsg_new(100, gfp);
10372 if (!msg)
10373 return true;
10374
b92ab5d8 10375 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10376 if (!hdr) {
10377 nlmsg_free(msg);
10378 return true;
10379 }
10380
9360ffd1
DM		 10381 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10382 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10383 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10384 goto nla_put_failure;
28946da7 10385
9c90a9f6 10386 genlmsg_end(msg, hdr);
15e47304 10387 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10388 return true;
10389
10390 nla_put_failure:
10391 genlmsg_cancel(msg, hdr);
10392 nlmsg_free(msg);
10393 return true;
10394}
10395
947add36
JB		 10396bool cfg80211_rx_spurious_frame(struct net_device *dev,
10397 const u8 *addr, gfp_t gfp)
b92ab5d8 10398{
947add36
JB		 10399 struct wireless_dev *wdev = dev->ieee80211_ptr;
10400 bool ret;
10401
10402 trace_cfg80211_rx_spurious_frame(dev, addr);
10403
10404 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10405 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10406 trace_cfg80211_return_bool(false);
10407 return false;
10408 }
10409 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10410 addr, gfp);
10411 trace_cfg80211_return_bool(ret);
10412 return ret;
b92ab5d8 10413}
947add36 10414EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10415
947add36
JB		 10416bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10417 const u8 *addr, gfp_t gfp)
b92ab5d8 10418{
947add36
JB		 10419 struct wireless_dev *wdev = dev->ieee80211_ptr;
10420 bool ret;
10421
10422 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10423
10424 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10425 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10426 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10427 trace_cfg80211_return_bool(false);
10428 return false;
10429 }
10430 ret = __nl80211_unexpected_frame(dev,
10431 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10432 addr, gfp);
10433 trace_cfg80211_return_bool(ret);
10434 return ret;
b92ab5d8 10435}
947add36 10436EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10437
2e161f78 10438int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10439 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 10440 int freq, int sig_dbm,
10441 const u8 *buf, size_t len, gfp_t gfp)
026331c4 10442{
71bbc994 10443 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10444 struct sk_buff *msg;
10445 void *hdr;
026331c4
JM		 10446
10447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10448 if (!msg)
10449 return -ENOMEM;
10450
2e161f78 10451 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10452 if (!hdr) {
10453 nlmsg_free(msg);
10454 return -ENOMEM;
10455 }
10456
9360ffd1 10457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10458 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10459 netdev->ifindex)) ||
a838490b 10460 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10461 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10462 (sig_dbm &&
10463 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10464 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10465 goto nla_put_failure;
026331c4 10466
3b7b72ee 10467 genlmsg_end(msg, hdr);
026331c4 10468
15e47304 10469 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10470
10471 nla_put_failure:
10472 genlmsg_cancel(msg, hdr);
10473 nlmsg_free(msg);
10474 return -ENOBUFS;
10475}
10476
947add36
JB		 10477void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10478 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10479{
947add36
JB		 10480 struct wiphy *wiphy = wdev->wiphy;
10481 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10482 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10483 struct sk_buff *msg;
10484 void *hdr;
10485
947add36
JB		 10486 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10487
026331c4
JM		 10488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10489 if (!msg)
10490 return;
10491
2e161f78 10492 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10493 if (!hdr) {
10494 nlmsg_free(msg);
10495 return;
10496 }
10497
9360ffd1 10498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10499 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10500 netdev->ifindex)) ||
a838490b 10501 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10502 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10503 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10504 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10505 goto nla_put_failure;
026331c4 10506
3b7b72ee 10507 genlmsg_end(msg, hdr);
026331c4
JM		 10508
10509 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10510 return;
10511
10512 nla_put_failure:
10513 genlmsg_cancel(msg, hdr);
10514 nlmsg_free(msg);
10515}
947add36 10516EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10517
947add36
JB		 10518void cfg80211_cqm_rssi_notify(struct net_device *dev,
10519 enum nl80211_cqm_rssi_threshold_event rssi_event,
10520 gfp_t gfp)
d6dc1a38 10521{
947add36
JB		 10522 struct wireless_dev *wdev = dev->ieee80211_ptr;
10523 struct wiphy *wiphy = wdev->wiphy;
10524 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10525 struct sk_buff *msg;
10526 struct nlattr *pinfoattr;
10527 void *hdr;
10528
947add36
JB		 10529 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10530
58050fce 10531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10532 if (!msg)
10533 return;
10534
10535 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10536 if (!hdr) {
10537 nlmsg_free(msg);
10538 return;
10539 }
10540
9360ffd1 10541 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10542 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10543 goto nla_put_failure;
d6dc1a38
JO		 10544
10545 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10546 if (!pinfoattr)
10547 goto nla_put_failure;
10548
9360ffd1
DM		 10549 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10550 rssi_event))
10551 goto nla_put_failure;
d6dc1a38
JO		 10552
10553 nla_nest_end(msg, pinfoattr);
10554
3b7b72ee 10555 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10556
10557 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10558 nl80211_mlme_mcgrp.id, gfp);
10559 return;
10560
10561 nla_put_failure:
10562 genlmsg_cancel(msg, hdr);
10563 nlmsg_free(msg);
10564}
947add36 10565EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10566
947add36
JB		 10567static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10568 struct net_device *netdev, const u8 *bssid,
10569 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10570{
10571 struct sk_buff *msg;
10572 struct nlattr *rekey_attr;
10573 void *hdr;
10574
58050fce 10575 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10576 if (!msg)
10577 return;
10578
10579 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10580 if (!hdr) {
10581 nlmsg_free(msg);
10582 return;
10583 }
10584
9360ffd1
DM		 10585 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10586 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10587 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10588 goto nla_put_failure;
e5497d76
JB		 10589
10590 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10591 if (!rekey_attr)
10592 goto nla_put_failure;
10593
9360ffd1
DM		 10594 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10595 NL80211_REPLAY_CTR_LEN, replay_ctr))
10596 goto nla_put_failure;
e5497d76
JB		 10597
10598 nla_nest_end(msg, rekey_attr);
10599
3b7b72ee 10600 genlmsg_end(msg, hdr);
e5497d76
JB		 10601
10602 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10603 nl80211_mlme_mcgrp.id, gfp);
10604 return;
10605
10606 nla_put_failure:
10607 genlmsg_cancel(msg, hdr);
10608 nlmsg_free(msg);
10609}
10610
947add36
JB		 10611void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10612 const u8 *replay_ctr, gfp_t gfp)
10613{
10614 struct wireless_dev *wdev = dev->ieee80211_ptr;
10615 struct wiphy *wiphy = wdev->wiphy;
10616 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10617
10618 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10619 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10620}
10621EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10622
10623static void
10624nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10625 struct net_device *netdev, int index,
10626 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10627{
10628 struct sk_buff *msg;
10629 struct nlattr *attr;
10630 void *hdr;
10631
58050fce 10632 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10633 if (!msg)
10634 return;
10635
10636 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10637 if (!hdr) {
10638 nlmsg_free(msg);
10639 return;
10640 }
10641
9360ffd1
DM		 10642 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10643 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10644 goto nla_put_failure;
c9df56b4
JM		 10645
10646 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10647 if (!attr)
10648 goto nla_put_failure;
10649
9360ffd1
DM		 10650 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10651 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10652 (preauth &&
10653 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10654 goto nla_put_failure;
c9df56b4
JM		 10655
10656 nla_nest_end(msg, attr);
10657
3b7b72ee 10658 genlmsg_end(msg, hdr);
c9df56b4
JM		 10659
10660 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10661 nl80211_mlme_mcgrp.id, gfp);
10662 return;
10663
10664 nla_put_failure:
10665 genlmsg_cancel(msg, hdr);
10666 nlmsg_free(msg);
10667}
10668
947add36
JB		 10669void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10670 const u8 *bssid, bool preauth, gfp_t gfp)
10671{
10672 struct wireless_dev *wdev = dev->ieee80211_ptr;
10673 struct wiphy *wiphy = wdev->wiphy;
10674 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10675
10676 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10677 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10678}
10679EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10680
10681static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10682 struct net_device *netdev,
10683 struct cfg80211_chan_def *chandef,
10684 gfp_t gfp)
5314526b
TP		 10685{
10686 struct sk_buff *msg;
10687 void *hdr;
10688
58050fce 10689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10690 if (!msg)
10691 return;
10692
10693 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10694 if (!hdr) {
10695 nlmsg_free(msg);
10696 return;
10697 }
10698
683b6d3b
JB		 10699 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10700 goto nla_put_failure;
10701
10702 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10703 goto nla_put_failure;
5314526b
TP		 10704
10705 genlmsg_end(msg, hdr);
10706
10707 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10708 nl80211_mlme_mcgrp.id, gfp);
10709 return;
10710
10711 nla_put_failure:
10712 genlmsg_cancel(msg, hdr);
10713 nlmsg_free(msg);
10714}
10715
947add36
JB		 10716void cfg80211_ch_switch_notify(struct net_device *dev,
10717 struct cfg80211_chan_def *chandef)
84f10708 10718{
947add36
JB		 10719 struct wireless_dev *wdev = dev->ieee80211_ptr;
10720 struct wiphy *wiphy = wdev->wiphy;
10721 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10722
10723 trace_cfg80211_ch_switch_notify(dev, chandef);
10724
10725 wdev_lock(wdev);
10726
10727 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10728 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10729 goto out;
10730
10731 wdev->channel = chandef->chan;
10732 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10733out:
10734 wdev_unlock(wdev);
10735 return;
10736}
10737EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10738
10739void cfg80211_cqm_txe_notify(struct net_device *dev,
10740 const u8 *peer, u32 num_packets,
10741 u32 rate, u32 intvl, gfp_t gfp)
10742{
10743 struct wireless_dev *wdev = dev->ieee80211_ptr;
10744 struct wiphy *wiphy = wdev->wiphy;
10745 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10746 struct sk_buff *msg;
10747 struct nlattr *pinfoattr;
10748 void *hdr;
10749
10750 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10751 if (!msg)
10752 return;
10753
10754 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10755 if (!hdr) {
10756 nlmsg_free(msg);
10757 return;
10758 }
10759
10760 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10761 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10762 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10763 goto nla_put_failure;
10764
10765 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10766 if (!pinfoattr)
10767 goto nla_put_failure;
10768
10769 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10770 goto nla_put_failure;
10771
10772 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10773 goto nla_put_failure;
10774
10775 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10776 goto nla_put_failure;
10777
10778 nla_nest_end(msg, pinfoattr);
10779
10780 genlmsg_end(msg, hdr);
10781
10782 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10783 nl80211_mlme_mcgrp.id, gfp);
10784 return;
10785
10786 nla_put_failure:
10787 genlmsg_cancel(msg, hdr);
10788 nlmsg_free(msg);
10789}
947add36 10790EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10791
04f39047
SW		 10792void
10793nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10794 struct cfg80211_chan_def *chandef,
10795 enum nl80211_radar_event event,
10796 struct net_device *netdev, gfp_t gfp)
10797{
10798 struct sk_buff *msg;
10799 void *hdr;
10800
10801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10802 if (!msg)
10803 return;
10804
10805 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10806 if (!hdr) {
10807 nlmsg_free(msg);
10808 return;
10809 }
10810
10811 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10812 goto nla_put_failure;
10813
10814 /* NOP and radar events don't need a netdev parameter */
10815 if (netdev) {
10816 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10817
10818 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10819 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10820 goto nla_put_failure;
10821 }
10822
10823 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10824 goto nla_put_failure;
10825
10826 if (nl80211_send_chandef(msg, chandef))
10827 goto nla_put_failure;
10828
9c90a9f6 10829 genlmsg_end(msg, hdr);
04f39047
SW		 10830
10831 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10832 nl80211_mlme_mcgrp.id, gfp);
10833 return;
10834
10835 nla_put_failure:
10836 genlmsg_cancel(msg, hdr);
10837 nlmsg_free(msg);
10838}
10839
947add36
JB		 10840void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10841 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10842{
947add36
JB		 10843 struct wireless_dev *wdev = dev->ieee80211_ptr;
10844 struct wiphy *wiphy = wdev->wiphy;
10845 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10846 struct sk_buff *msg;
10847 struct nlattr *pinfoattr;
10848 void *hdr;
10849
947add36
JB		 10850 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10851
58050fce 10852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10853 if (!msg)
10854 return;
10855
10856 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10857 if (!hdr) {
10858 nlmsg_free(msg);
10859 return;
10860 }
10861
9360ffd1 10862 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10863 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10864 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10865 goto nla_put_failure;
c063dbf5
JB		 10866
10867 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10868 if (!pinfoattr)
10869 goto nla_put_failure;
10870
9360ffd1
DM		 10871 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10872 goto nla_put_failure;
c063dbf5
JB		 10873
10874 nla_nest_end(msg, pinfoattr);
10875
3b7b72ee 10876 genlmsg_end(msg, hdr);
c063dbf5
JB		 10877
10878 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10879 nl80211_mlme_mcgrp.id, gfp);
10880 return;
10881
10882 nla_put_failure:
10883 genlmsg_cancel(msg, hdr);
10884 nlmsg_free(msg);
10885}
947add36 10886EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10887
7f6cf311
JB		 10888void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10889 u64 cookie, bool acked, gfp_t gfp)
10890{
10891 struct wireless_dev *wdev = dev->ieee80211_ptr;
10892 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10893 struct sk_buff *msg;
10894 void *hdr;
7f6cf311 10895
4ee3e063
BL		 10896 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10897
58050fce 10898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10899
7f6cf311
JB		 10900 if (!msg)
10901 return;
10902
10903 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10904 if (!hdr) {
10905 nlmsg_free(msg);
10906 return;
10907 }
10908
9360ffd1
DM		 10909 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10910 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10911 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10912 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10913 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10914 goto nla_put_failure;
7f6cf311 10915
9c90a9f6 10916 genlmsg_end(msg, hdr);
7f6cf311
JB		 10917
10918 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10919 nl80211_mlme_mcgrp.id, gfp);
10920 return;
10921
10922 nla_put_failure:
10923 genlmsg_cancel(msg, hdr);
10924 nlmsg_free(msg);
10925}
10926EXPORT_SYMBOL(cfg80211_probe_status);
10927
5e760230
JB		 10928void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10929 const u8 *frame, size_t len,
37c73b5f 10930 int freq, int sig_dbm)
5e760230
JB		 10931{
10932 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10933 struct sk_buff *msg;
10934 void *hdr;
37c73b5f 10935 struct cfg80211_beacon_registration *reg;
5e760230 10936
4ee3e063
BL		 10937 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10938
37c73b5f
BG		 10939 spin_lock_bh(&rdev->beacon_registrations_lock);
10940 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10941 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10942 if (!msg) {
10943 spin_unlock_bh(&rdev->beacon_registrations_lock);
10944 return;
10945 }
5e760230 10946
37c73b5f
BG		 10947 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10948 if (!hdr)
10949 goto nla_put_failure;
5e760230 10950
37c73b5f
BG		 10951 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10952 (freq &&
10953 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10954 (sig_dbm &&
10955 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10956 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10957 goto nla_put_failure;
5e760230 10958
37c73b5f 10959 genlmsg_end(msg, hdr);
5e760230 10960
37c73b5f
BG		 10961 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10962 }
10963 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10964 return;
10965
10966 nla_put_failure:
37c73b5f
BG		 10967 spin_unlock_bh(&rdev->beacon_registrations_lock);
10968 if (hdr)
10969 genlmsg_cancel(msg, hdr);
5e760230
JB		 10970 nlmsg_free(msg);
10971}
10972EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10973
cd8f7cb4
JB		 10974#ifdef CONFIG_PM
10975void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10976 struct cfg80211_wowlan_wakeup *wakeup,
10977 gfp_t gfp)
10978{
10979 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10980 struct sk_buff *msg;
10981 void *hdr;
9c90a9f6 10982 int size = 200;
cd8f7cb4
JB		 10983
10984 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10985
10986 if (wakeup)
10987 size += wakeup->packet_present_len;
10988
10989 msg = nlmsg_new(size, gfp);
10990 if (!msg)
10991 return;
10992
10993 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10994 if (!hdr)
10995 goto free_msg;
10996
10997 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10998 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10999 goto free_msg;
11000
11001 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11002 wdev->netdev->ifindex))
11003 goto free_msg;
11004
11005 if (wakeup) {
11006 struct nlattr *reasons;
11007
11008 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11009
11010 if (wakeup->disconnect &&
11011 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11012 goto free_msg;
11013 if (wakeup->magic_pkt &&
11014 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11015 goto free_msg;
11016 if (wakeup->gtk_rekey_failure &&
11017 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11018 goto free_msg;
11019 if (wakeup->eap_identity_req &&
11020 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11021 goto free_msg;
11022 if (wakeup->four_way_handshake &&
11023 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11024 goto free_msg;
11025 if (wakeup->rfkill_release &&
11026 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11027 goto free_msg;
11028
11029 if (wakeup->pattern_idx >= 0 &&
11030 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11031 wakeup->pattern_idx))
11032 goto free_msg;
11033
2a0e047e
JB		 11034 if (wakeup->tcp_match)
11035 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
11036
11037 if (wakeup->tcp_connlost)
11038 nla_put_flag(msg,
11039 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
11040
11041 if (wakeup->tcp_nomoretokens)
11042 nla_put_flag(msg,
11043 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
11044
cd8f7cb4
JB		 11045 if (wakeup->packet) {
11046 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11047 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11048
11049 if (!wakeup->packet_80211) {
11050 pkt_attr =
11051 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11052 len_attr =
11053 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11054 }
11055
11056 if (wakeup->packet_len &&
11057 nla_put_u32(msg, len_attr, wakeup->packet_len))
11058 goto free_msg;
11059
11060 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11061 wakeup->packet))
11062 goto free_msg;
11063 }
11064
11065 nla_nest_end(msg, reasons);
11066 }
11067
9c90a9f6 11068 genlmsg_end(msg, hdr);
cd8f7cb4
JB		 11069
11070 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11071 nl80211_mlme_mcgrp.id, gfp);
11072 return;
11073
11074 free_msg:
11075 nlmsg_free(msg);
11076}
11077EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11078#endif
11079
3475b094
JM		 11080void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11081 enum nl80211_tdls_operation oper,
11082 u16 reason_code, gfp_t gfp)
11083{
11084 struct wireless_dev *wdev = dev->ieee80211_ptr;
11085 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11086 struct sk_buff *msg;
11087 void *hdr;
3475b094
JM		 11088
11089 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11090 reason_code);
11091
11092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11093 if (!msg)
11094 return;
11095
11096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11097 if (!hdr) {
11098 nlmsg_free(msg);
11099 return;
11100 }
11101
11102 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11103 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11104 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11105 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11106 (reason_code > 0 &&
11107 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11108 goto nla_put_failure;
11109
9c90a9f6 11110 genlmsg_end(msg, hdr);
3475b094
JM		 11111
11112 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11113 nl80211_mlme_mcgrp.id, gfp);
11114 return;
11115
11116 nla_put_failure:
11117 genlmsg_cancel(msg, hdr);
11118 nlmsg_free(msg);
11119}
11120EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11121
026331c4
JM		 11122static int nl80211_netlink_notify(struct notifier_block * nb,
11123 unsigned long state,
11124 void *_notify)
11125{
11126 struct netlink_notify *notify = _notify;
11127 struct cfg80211_registered_device *rdev;
11128 struct wireless_dev *wdev;
37c73b5f 11129 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11130
11131 if (state != NETLINK_URELEASE)
11132 return NOTIFY_DONE;
11133
11134 rcu_read_lock();
11135
5e760230 11136 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 11137 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 11138 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 11139
11140 spin_lock_bh(&rdev->beacon_registrations_lock);
11141 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11142 list) {
11143 if (reg->nlportid == notify->portid) {
11144 list_del(&reg->list);
11145 kfree(reg);
11146 break;
11147 }
11148 }
11149 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 11150 }
026331c4
JM		 11151
11152 rcu_read_unlock();
11153
11154 return NOTIFY_DONE;
11155}
11156
11157static struct notifier_block nl80211_netlink_notifier = {
11158 .notifier_call = nl80211_netlink_notify,
11159};
11160
355199e0
JM		 11161void cfg80211_ft_event(struct net_device *netdev,
11162 struct cfg80211_ft_event_params *ft_event)
11163{
11164 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11165 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11166 struct sk_buff *msg;
11167 void *hdr;
355199e0
JM		 11168
11169 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11170
11171 if (!ft_event->target_ap)
11172 return;
11173
11174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11175 if (!msg)
11176 return;
11177
11178 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11179 if (!hdr) {
11180 nlmsg_free(msg);
11181 return;
11182 }
11183
11184 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, ft_event->target_ap);
11187 if (ft_event->ies)
11188 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
11189 if (ft_event->ric_ies)
11190 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11191 ft_event->ric_ies);
11192
9c90a9f6 11193 genlmsg_end(msg, hdr);
355199e0
JM		 11194
11195 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11196 nl80211_mlme_mcgrp.id, GFP_KERNEL);
11197}
11198EXPORT_SYMBOL(cfg80211_ft_event);
11199
5de17984
AS		 11200void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11201{
11202 struct cfg80211_registered_device *rdev;
11203 struct sk_buff *msg;
11204 void *hdr;
11205 u32 nlportid;
11206
11207 rdev = wiphy_to_dev(wdev->wiphy);
11208 if (!rdev->crit_proto_nlportid)
11209 return;
11210
11211 nlportid = rdev->crit_proto_nlportid;
11212 rdev->crit_proto_nlportid = 0;
11213
11214 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11215 if (!msg)
11216 return;
11217
11218 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11219 if (!hdr)
11220 goto nla_put_failure;
11221
11222 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11223 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11224 goto nla_put_failure;
11225
11226 genlmsg_end(msg, hdr);
11227
11228 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11229 return;
11230
11231 nla_put_failure:
11232 if (hdr)
11233 genlmsg_cancel(msg, hdr);
11234 nlmsg_free(msg);
11235
11236}
11237EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11238
55682965
JB		 11239/* initialisation/exit functions */
11240
11241int nl80211_init(void)
11242{
0d63cbb5 11243 int err;
55682965 11244
0d63cbb5
MM		 11245 err = genl_register_family_with_ops(&nl80211_fam,
11246 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 11247 if (err)
11248 return err;
11249
55682965
JB		 11250 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
11251 if (err)
11252 goto err_out;
11253
2a519311
JB		 11254 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
11255 if (err)
11256 goto err_out;
11257
73d54c9e
LR		 11258 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
11259 if (err)
11260 goto err_out;
11261
6039f6d2
JM		 11262 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
11263 if (err)
11264 goto err_out;
11265
aff89a9b
JB		 11266#ifdef CONFIG_NL80211_TESTMODE
11267 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
11268 if (err)
11269 goto err_out;
11270#endif
11271
026331c4
JM		 11272 err = netlink_register_notifier(&nl80211_netlink_notifier);
11273 if (err)
11274 goto err_out;
11275
55682965
JB		 11276 return 0;
11277 err_out:
11278 genl_unregister_family(&nl80211_fam);
11279 return err;
11280}
11281
11282void nl80211_exit(void)
11283{
026331c4 11284 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11285 genl_unregister_family(&nl80211_fam);
11286}
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