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Commit | Line | Data |
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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 |
28 | static 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 |
33 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, |
34 | struct genl_info *info); | |
35 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
36 | struct genl_info *info); | |
37 | ||
55682965 JB |
38 | /* the netlink family */ |
39 | static struct genl_family nl80211_fam = { | |
40 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
41 | .name = "nl80211", /* have users key off the name instead */ | |
42 | .hdrsize = 0, /* no private header */ | |
43 | .version = 1, /* no particular meaning now */ | |
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 */ |
51 | static 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 | |
89a54e48 | 62 | assert_cfg80211_lock(); |
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 | ||
83 | mutex_lock(&rdev->devlist_mtx); | |
84 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
85 | if (have_ifidx && wdev->netdev && | |
86 | wdev->netdev->ifindex == ifidx) { | |
87 | result = wdev; | |
88 | break; | |
89 | } | |
90 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { | |
91 | result = wdev; | |
92 | break; | |
93 | } | |
94 | } | |
95 | mutex_unlock(&rdev->devlist_mtx); | |
96 | ||
97 | if (result) | |
98 | break; | |
99 | } | |
100 | ||
101 | if (result) | |
102 | return result; | |
103 | return ERR_PTR(-ENODEV); | |
55682965 JB |
104 | } |
105 | ||
a9455408 | 106 | static struct cfg80211_registered_device * |
878d9ec7 | 107 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
a9455408 | 108 | { |
7fee4778 JB |
109 | struct cfg80211_registered_device *rdev = NULL, *tmp; |
110 | struct net_device *netdev; | |
a9455408 JB |
111 | |
112 | assert_cfg80211_lock(); | |
113 | ||
878d9ec7 | 114 | if (!attrs[NL80211_ATTR_WIPHY] && |
89a54e48 JB |
115 | !attrs[NL80211_ATTR_IFINDEX] && |
116 | !attrs[NL80211_ATTR_WDEV]) | |
7fee4778 JB |
117 | return ERR_PTR(-EINVAL); |
118 | ||
878d9ec7 | 119 | if (attrs[NL80211_ATTR_WIPHY]) |
7fee4778 | 120 | rdev = cfg80211_rdev_by_wiphy_idx( |
878d9ec7 | 121 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
a9455408 | 122 | |
89a54e48 JB |
123 | if (attrs[NL80211_ATTR_WDEV]) { |
124 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
125 | struct wireless_dev *wdev; | |
126 | bool found = false; | |
127 | ||
128 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
129 | if (tmp) { | |
130 | /* make sure wdev exists */ | |
131 | mutex_lock(&tmp->devlist_mtx); | |
132 | list_for_each_entry(wdev, &tmp->wdev_list, list) { | |
133 | if (wdev->identifier != (u32)wdev_id) | |
134 | continue; | |
135 | found = true; | |
136 | break; | |
137 | } | |
138 | mutex_unlock(&tmp->devlist_mtx); | |
139 | ||
140 | if (!found) | |
141 | tmp = NULL; | |
142 | ||
143 | if (rdev && tmp != rdev) | |
144 | return ERR_PTR(-EINVAL); | |
145 | rdev = tmp; | |
146 | } | |
147 | } | |
148 | ||
878d9ec7 JB |
149 | if (attrs[NL80211_ATTR_IFINDEX]) { |
150 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
4f7eff10 | 151 | netdev = dev_get_by_index(netns, ifindex); |
7fee4778 JB |
152 | if (netdev) { |
153 | if (netdev->ieee80211_ptr) | |
154 | tmp = wiphy_to_dev( | |
155 | netdev->ieee80211_ptr->wiphy); | |
156 | else | |
157 | tmp = NULL; | |
158 | ||
159 | dev_put(netdev); | |
160 | ||
161 | /* not wireless device -- return error */ | |
162 | if (!tmp) | |
163 | return ERR_PTR(-EINVAL); | |
164 | ||
165 | /* mismatch -- return error */ | |
166 | if (rdev && tmp != rdev) | |
167 | return ERR_PTR(-EINVAL); | |
168 | ||
169 | rdev = tmp; | |
a9455408 | 170 | } |
a9455408 | 171 | } |
a9455408 | 172 | |
4f7eff10 JB |
173 | if (!rdev) |
174 | return ERR_PTR(-ENODEV); | |
a9455408 | 175 | |
4f7eff10 JB |
176 | if (netns != wiphy_net(&rdev->wiphy)) |
177 | return ERR_PTR(-ENODEV); | |
178 | ||
179 | return rdev; | |
a9455408 JB |
180 | } |
181 | ||
182 | /* | |
183 | * This function returns a pointer to the driver | |
184 | * that the genl_info item that is passed refers to. | |
185 | * If successful, it returns non-NULL and also locks | |
186 | * the driver's mutex! | |
187 | * | |
188 | * This means that you need to call cfg80211_unlock_rdev() | |
189 | * before being allowed to acquire &cfg80211_mutex! | |
190 | * | |
191 | * This is necessary because we need to lock the global | |
192 | * mutex to get an item off the list safely, and then | |
193 | * we lock the rdev mutex so it doesn't go away under us. | |
194 | * | |
195 | * We don't want to keep cfg80211_mutex locked | |
196 | * for all the time in order to allow requests on | |
197 | * other interfaces to go through at the same time. | |
198 | * | |
199 | * The result of this can be a PTR_ERR and hence must | |
200 | * be checked with IS_ERR() for errors. | |
201 | */ | |
202 | static struct cfg80211_registered_device * | |
4f7eff10 | 203 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
a9455408 JB |
204 | { |
205 | struct cfg80211_registered_device *rdev; | |
206 | ||
207 | mutex_lock(&cfg80211_mutex); | |
878d9ec7 | 208 | rdev = __cfg80211_rdev_from_attrs(netns, info->attrs); |
a9455408 JB |
209 | |
210 | /* if it is not an error we grab the lock on | |
211 | * it to assure it won't be going away while | |
212 | * we operate on it */ | |
213 | if (!IS_ERR(rdev)) | |
214 | mutex_lock(&rdev->mtx); | |
215 | ||
216 | mutex_unlock(&cfg80211_mutex); | |
217 | ||
218 | return rdev; | |
219 | } | |
220 | ||
55682965 | 221 | /* policy for the attributes */ |
b54452b0 | 222 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
223 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
224 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 225 | .len = 20-1 }, |
31888487 | 226 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
3d9d1d66 | 227 | |
72bdcf34 | 228 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 229 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
3d9d1d66 JB |
230 | [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 }, |
231 | [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 }, | |
232 | [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 }, | |
233 | ||
b9a5f8ca JM |
234 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
235 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
236 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
237 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 238 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
239 | |
240 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
241 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
242 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 243 | |
e007b857 EP |
244 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
245 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 246 | |
b9454e83 | 247 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
248 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
249 | .len = WLAN_MAX_KEY_LEN }, | |
250 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
251 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
252 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 253 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 254 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
255 | |
256 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
257 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
258 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
259 | .len = IEEE80211_MAX_DATA_LEN }, | |
260 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
261 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
262 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
263 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
264 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
265 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
266 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 267 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 268 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 269 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 | 270 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
a4f606ea | 271 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
2ec600d6 | 272 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
9f1ba906 | 273 | |
b2e1b302 LR |
274 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
275 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
276 | ||
9f1ba906 JM |
277 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
278 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
279 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
280 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
281 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 282 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 283 | |
24bdd9f4 | 284 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 285 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 286 | |
6c739419 | 287 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
288 | |
289 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
290 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
291 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
292 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
293 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
294 | |
295 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
296 | .len = IEEE80211_MAX_SSID_LEN }, | |
297 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
298 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 299 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 300 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 301 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
302 | [NL80211_ATTR_STA_FLAGS2] = { |
303 | .len = sizeof(struct nl80211_sta_flag_update), | |
304 | }, | |
3f77316c | 305 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
306 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
307 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
308 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
309 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
310 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 311 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 312 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
313 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
314 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
315 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
316 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 317 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
318 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
319 | .len = IEEE80211_MAX_DATA_LEN }, | |
320 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 321 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 322 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 323 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 324 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
325 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
326 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 327 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
328 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
329 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 330 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 331 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 332 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 333 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 334 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 335 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 336 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 337 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 338 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
339 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
340 | .len = IEEE80211_MAX_DATA_LEN }, | |
341 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
342 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 343 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 344 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 345 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
346 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
347 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
348 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
349 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
350 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
e247bd90 | 351 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
352 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
353 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 354 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
355 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
356 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
357 | .len = NL80211_HT_CAPABILITY_LEN | |
358 | }, | |
1d9d9213 | 359 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 360 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 361 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
89a54e48 | 362 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
57b5ce07 | 363 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
e39e5b5e | 364 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, |
f461be3e | 365 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, |
ed473771 | 366 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
53cabad7 JB |
367 | [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 }, |
368 | [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 }, | |
77765eaf VT |
369 | [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, |
370 | [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, | |
55682965 JB |
371 | }; |
372 | ||
e31b8213 | 373 | /* policy for the key attributes */ |
b54452b0 | 374 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 375 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
376 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
377 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 378 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
379 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
380 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 381 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
382 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
383 | }; | |
384 | ||
385 | /* policy for the key default flags */ | |
386 | static const struct nla_policy | |
387 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
388 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
389 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
390 | }; |
391 | ||
ff1b6e69 JB |
392 | /* policy for WoWLAN attributes */ |
393 | static const struct nla_policy | |
394 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
395 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
396 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
397 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
398 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
399 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
400 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
401 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
402 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
2a0e047e JB |
403 | [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, |
404 | }; | |
405 | ||
406 | static const struct nla_policy | |
407 | nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { | |
408 | [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, | |
409 | [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, | |
410 | [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN }, | |
411 | [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, | |
412 | [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, | |
413 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 }, | |
414 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { | |
415 | .len = sizeof(struct nl80211_wowlan_tcp_data_seq) | |
416 | }, | |
417 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { | |
418 | .len = sizeof(struct nl80211_wowlan_tcp_data_token) | |
419 | }, | |
420 | [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, | |
421 | [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 }, | |
422 | [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 }, | |
ff1b6e69 JB |
423 | }; |
424 | ||
e5497d76 JB |
425 | /* policy for GTK rekey offload attributes */ |
426 | static const struct nla_policy | |
427 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
428 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
429 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
430 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
431 | }; | |
432 | ||
a1f1c21c LC |
433 | static const struct nla_policy |
434 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
4a4ab0d7 | 435 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
a1f1c21c | 436 | .len = IEEE80211_MAX_SSID_LEN }, |
88e920b4 | 437 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
a1f1c21c LC |
438 | }; |
439 | ||
a043897a HS |
440 | /* ifidx get helper */ |
441 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
442 | { | |
443 | int res; | |
444 | ||
445 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
446 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
447 | nl80211_policy); | |
448 | if (res) | |
449 | return res; | |
450 | ||
451 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
452 | return -EINVAL; | |
453 | ||
454 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
455 | if (!res) | |
456 | return -EINVAL; | |
457 | return res; | |
458 | } | |
459 | ||
67748893 JB |
460 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
461 | struct netlink_callback *cb, | |
462 | struct cfg80211_registered_device **rdev, | |
463 | struct net_device **dev) | |
464 | { | |
465 | int ifidx = cb->args[0]; | |
466 | int err; | |
467 | ||
468 | if (!ifidx) | |
469 | ifidx = nl80211_get_ifidx(cb); | |
470 | if (ifidx < 0) | |
471 | return ifidx; | |
472 | ||
473 | cb->args[0] = ifidx; | |
474 | ||
475 | rtnl_lock(); | |
476 | ||
477 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
478 | if (!*dev) { | |
479 | err = -ENODEV; | |
480 | goto out_rtnl; | |
481 | } | |
482 | ||
483 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3cc25e51 FF |
484 | if (IS_ERR(*rdev)) { |
485 | err = PTR_ERR(*rdev); | |
67748893 JB |
486 | goto out_rtnl; |
487 | } | |
488 | ||
489 | return 0; | |
490 | out_rtnl: | |
491 | rtnl_unlock(); | |
492 | return err; | |
493 | } | |
494 | ||
495 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
496 | { | |
497 | cfg80211_unlock_rdev(rdev); | |
498 | rtnl_unlock(); | |
499 | } | |
500 | ||
f4a11bb0 JB |
501 | /* IE validation */ |
502 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
503 | { | |
504 | const u8 *pos; | |
505 | int len; | |
506 | ||
507 | if (!attr) | |
508 | return true; | |
509 | ||
510 | pos = nla_data(attr); | |
511 | len = nla_len(attr); | |
512 | ||
513 | while (len) { | |
514 | u8 elemlen; | |
515 | ||
516 | if (len < 2) | |
517 | return false; | |
518 | len -= 2; | |
519 | ||
520 | elemlen = pos[1]; | |
521 | if (elemlen > len) | |
522 | return false; | |
523 | ||
524 | len -= elemlen; | |
525 | pos += 2 + elemlen; | |
526 | } | |
527 | ||
528 | return true; | |
529 | } | |
530 | ||
55682965 | 531 | /* message building helper */ |
15e47304 | 532 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
55682965 JB |
533 | int flags, u8 cmd) |
534 | { | |
535 | /* since there is no private header just add the generic one */ | |
15e47304 | 536 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
55682965 JB |
537 | } |
538 | ||
5dab3b8a LR |
539 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
540 | struct ieee80211_channel *chan) | |
541 | { | |
9360ffd1 DM |
542 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
543 | chan->center_freq)) | |
544 | goto nla_put_failure; | |
5dab3b8a | 545 | |
9360ffd1 DM |
546 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
547 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
548 | goto nla_put_failure; | |
549 | if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) && | |
550 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN)) | |
551 | goto nla_put_failure; | |
552 | if ((chan->flags & IEEE80211_CHAN_NO_IBSS) && | |
553 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
554 | goto nla_put_failure; | |
555 | if ((chan->flags & IEEE80211_CHAN_RADAR) && | |
556 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
557 | goto nla_put_failure; | |
5dab3b8a | 558 | |
9360ffd1 DM |
559 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
560 | DBM_TO_MBM(chan->max_power))) | |
561 | goto nla_put_failure; | |
5dab3b8a LR |
562 | |
563 | return 0; | |
564 | ||
565 | nla_put_failure: | |
566 | return -ENOBUFS; | |
567 | } | |
568 | ||
55682965 JB |
569 | /* netlink command implementations */ |
570 | ||
b9454e83 JB |
571 | struct key_parse { |
572 | struct key_params p; | |
573 | int idx; | |
e31b8213 | 574 | int type; |
b9454e83 | 575 | bool def, defmgmt; |
dbd2fd65 | 576 | bool def_uni, def_multi; |
b9454e83 JB |
577 | }; |
578 | ||
579 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
580 | { | |
581 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
582 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
583 | nl80211_key_policy); | |
584 | if (err) | |
585 | return err; | |
586 | ||
587 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
588 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
589 | ||
dbd2fd65 JB |
590 | if (k->def) { |
591 | k->def_uni = true; | |
592 | k->def_multi = true; | |
593 | } | |
594 | if (k->defmgmt) | |
595 | k->def_multi = true; | |
596 | ||
b9454e83 JB |
597 | if (tb[NL80211_KEY_IDX]) |
598 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
599 | ||
600 | if (tb[NL80211_KEY_DATA]) { | |
601 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
602 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
603 | } | |
604 | ||
605 | if (tb[NL80211_KEY_SEQ]) { | |
606 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
607 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
608 | } | |
609 | ||
610 | if (tb[NL80211_KEY_CIPHER]) | |
611 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
612 | ||
e31b8213 JB |
613 | if (tb[NL80211_KEY_TYPE]) { |
614 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
615 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
616 | return -EINVAL; | |
617 | } | |
618 | ||
dbd2fd65 JB |
619 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
620 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
621 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
622 | tb[NL80211_KEY_DEFAULT_TYPES], | |
623 | nl80211_key_default_policy); | |
dbd2fd65 JB |
624 | if (err) |
625 | return err; | |
626 | ||
627 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
628 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
629 | } | |
630 | ||
b9454e83 JB |
631 | return 0; |
632 | } | |
633 | ||
634 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
635 | { | |
636 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
637 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
638 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
639 | } | |
640 | ||
641 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
642 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
643 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
644 | } | |
645 | ||
646 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
647 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
648 | ||
649 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
650 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
651 | ||
652 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
653 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
654 | ||
dbd2fd65 JB |
655 | if (k->def) { |
656 | k->def_uni = true; | |
657 | k->def_multi = true; | |
658 | } | |
659 | if (k->defmgmt) | |
660 | k->def_multi = true; | |
661 | ||
e31b8213 JB |
662 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
663 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
664 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
665 | return -EINVAL; | |
666 | } | |
667 | ||
dbd2fd65 JB |
668 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
669 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
670 | int err = nla_parse_nested( | |
671 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
672 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
673 | nl80211_key_default_policy); | |
674 | if (err) | |
675 | return err; | |
676 | ||
677 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
678 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
679 | } | |
680 | ||
b9454e83 JB |
681 | return 0; |
682 | } | |
683 | ||
684 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
685 | { | |
686 | int err; | |
687 | ||
688 | memset(k, 0, sizeof(*k)); | |
689 | k->idx = -1; | |
e31b8213 | 690 | k->type = -1; |
b9454e83 JB |
691 | |
692 | if (info->attrs[NL80211_ATTR_KEY]) | |
693 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
694 | else | |
695 | err = nl80211_parse_key_old(info, k); | |
696 | ||
697 | if (err) | |
698 | return err; | |
699 | ||
700 | if (k->def && k->defmgmt) | |
701 | return -EINVAL; | |
702 | ||
dbd2fd65 JB |
703 | if (k->defmgmt) { |
704 | if (k->def_uni || !k->def_multi) | |
705 | return -EINVAL; | |
706 | } | |
707 | ||
b9454e83 JB |
708 | if (k->idx != -1) { |
709 | if (k->defmgmt) { | |
710 | if (k->idx < 4 || k->idx > 5) | |
711 | return -EINVAL; | |
712 | } else if (k->def) { | |
713 | if (k->idx < 0 || k->idx > 3) | |
714 | return -EINVAL; | |
715 | } else { | |
716 | if (k->idx < 0 || k->idx > 5) | |
717 | return -EINVAL; | |
718 | } | |
719 | } | |
720 | ||
721 | return 0; | |
722 | } | |
723 | ||
fffd0934 JB |
724 | static struct cfg80211_cached_keys * |
725 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
de7044ee | 726 | struct nlattr *keys, bool *no_ht) |
fffd0934 JB |
727 | { |
728 | struct key_parse parse; | |
729 | struct nlattr *key; | |
730 | struct cfg80211_cached_keys *result; | |
731 | int rem, err, def = 0; | |
732 | ||
733 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
734 | if (!result) | |
735 | return ERR_PTR(-ENOMEM); | |
736 | ||
737 | result->def = -1; | |
738 | result->defmgmt = -1; | |
739 | ||
740 | nla_for_each_nested(key, keys, rem) { | |
741 | memset(&parse, 0, sizeof(parse)); | |
742 | parse.idx = -1; | |
743 | ||
744 | err = nl80211_parse_key_new(key, &parse); | |
745 | if (err) | |
746 | goto error; | |
747 | err = -EINVAL; | |
748 | if (!parse.p.key) | |
749 | goto error; | |
750 | if (parse.idx < 0 || parse.idx > 4) | |
751 | goto error; | |
752 | if (parse.def) { | |
753 | if (def) | |
754 | goto error; | |
755 | def = 1; | |
756 | result->def = parse.idx; | |
dbd2fd65 JB |
757 | if (!parse.def_uni || !parse.def_multi) |
758 | goto error; | |
fffd0934 JB |
759 | } else if (parse.defmgmt) |
760 | goto error; | |
761 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 762 | parse.idx, false, NULL); |
fffd0934 JB |
763 | if (err) |
764 | goto error; | |
765 | result->params[parse.idx].cipher = parse.p.cipher; | |
766 | result->params[parse.idx].key_len = parse.p.key_len; | |
767 | result->params[parse.idx].key = result->data[parse.idx]; | |
768 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
de7044ee SM |
769 | |
770 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
771 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
772 | if (no_ht) | |
773 | *no_ht = true; | |
774 | } | |
fffd0934 JB |
775 | } |
776 | ||
777 | return result; | |
778 | error: | |
779 | kfree(result); | |
780 | return ERR_PTR(err); | |
781 | } | |
782 | ||
783 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
784 | { | |
785 | ASSERT_WDEV_LOCK(wdev); | |
786 | ||
fffd0934 JB |
787 | switch (wdev->iftype) { |
788 | case NL80211_IFTYPE_AP: | |
789 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 790 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 791 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
792 | break; |
793 | case NL80211_IFTYPE_ADHOC: | |
794 | if (!wdev->current_bss) | |
795 | return -ENOLINK; | |
796 | break; | |
797 | case NL80211_IFTYPE_STATION: | |
074ac8df | 798 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
799 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
800 | return -ENOLINK; | |
801 | break; | |
802 | default: | |
803 | return -EINVAL; | |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
7527a782 JB |
809 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
810 | { | |
811 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
812 | int i; | |
813 | ||
814 | if (!nl_modes) | |
815 | goto nla_put_failure; | |
816 | ||
817 | i = 0; | |
818 | while (ifmodes) { | |
9360ffd1 DM |
819 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
820 | goto nla_put_failure; | |
7527a782 JB |
821 | ifmodes >>= 1; |
822 | i++; | |
823 | } | |
824 | ||
825 | nla_nest_end(msg, nl_modes); | |
826 | return 0; | |
827 | ||
828 | nla_put_failure: | |
829 | return -ENOBUFS; | |
830 | } | |
831 | ||
832 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
833 | struct sk_buff *msg) | |
834 | { | |
835 | struct nlattr *nl_combis; | |
836 | int i, j; | |
837 | ||
838 | nl_combis = nla_nest_start(msg, | |
839 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
840 | if (!nl_combis) | |
841 | goto nla_put_failure; | |
842 | ||
843 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
844 | const struct ieee80211_iface_combination *c; | |
845 | struct nlattr *nl_combi, *nl_limits; | |
846 | ||
847 | c = &wiphy->iface_combinations[i]; | |
848 | ||
849 | nl_combi = nla_nest_start(msg, i + 1); | |
850 | if (!nl_combi) | |
851 | goto nla_put_failure; | |
852 | ||
853 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
854 | if (!nl_limits) | |
855 | goto nla_put_failure; | |
856 | ||
857 | for (j = 0; j < c->n_limits; j++) { | |
858 | struct nlattr *nl_limit; | |
859 | ||
860 | nl_limit = nla_nest_start(msg, j + 1); | |
861 | if (!nl_limit) | |
862 | goto nla_put_failure; | |
9360ffd1 DM |
863 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
864 | c->limits[j].max)) | |
865 | goto nla_put_failure; | |
7527a782 JB |
866 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
867 | c->limits[j].types)) | |
868 | goto nla_put_failure; | |
869 | nla_nest_end(msg, nl_limit); | |
870 | } | |
871 | ||
872 | nla_nest_end(msg, nl_limits); | |
873 | ||
9360ffd1 DM |
874 | if (c->beacon_int_infra_match && |
875 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
876 | goto nla_put_failure; | |
877 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
878 | c->num_different_channels) || | |
879 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
880 | c->max_interfaces)) | |
881 | goto nla_put_failure; | |
11c4a075 SW |
882 | if (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, |
883 | c->radar_detect_widths)) | |
884 | goto nla_put_failure; | |
7527a782 JB |
885 | |
886 | nla_nest_end(msg, nl_combi); | |
887 | } | |
888 | ||
889 | nla_nest_end(msg, nl_combis); | |
890 | ||
891 | return 0; | |
892 | nla_put_failure: | |
893 | return -ENOBUFS; | |
894 | } | |
895 | ||
2a0e047e JB |
896 | #ifdef CONFIG_PM |
897 | static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, | |
898 | struct sk_buff *msg) | |
899 | { | |
900 | const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp; | |
901 | struct nlattr *nl_tcp; | |
902 | ||
903 | if (!tcp) | |
904 | return 0; | |
905 | ||
906 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
907 | if (!nl_tcp) | |
908 | return -ENOBUFS; | |
909 | ||
910 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
911 | tcp->data_payload_max)) | |
912 | return -ENOBUFS; | |
913 | ||
914 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
915 | tcp->data_payload_max)) | |
916 | return -ENOBUFS; | |
917 | ||
918 | if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) | |
919 | return -ENOBUFS; | |
920 | ||
921 | if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
922 | sizeof(*tcp->tok), tcp->tok)) | |
923 | return -ENOBUFS; | |
924 | ||
925 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
926 | tcp->data_interval_max)) | |
927 | return -ENOBUFS; | |
928 | ||
929 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
930 | tcp->wake_payload_max)) | |
931 | return -ENOBUFS; | |
932 | ||
933 | nla_nest_end(msg, nl_tcp); | |
934 | return 0; | |
935 | } | |
936 | #endif | |
937 | ||
15e47304 | 938 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
55682965 JB |
939 | struct cfg80211_registered_device *dev) |
940 | { | |
941 | void *hdr; | |
ee688b00 JB |
942 | struct nlattr *nl_bands, *nl_band; |
943 | struct nlattr *nl_freqs, *nl_freq; | |
944 | struct nlattr *nl_rates, *nl_rate; | |
8fdc621d | 945 | struct nlattr *nl_cmds; |
ee688b00 JB |
946 | enum ieee80211_band band; |
947 | struct ieee80211_channel *chan; | |
948 | struct ieee80211_rate *rate; | |
949 | int i; | |
2e161f78 JB |
950 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
951 | dev->wiphy.mgmt_stypes; | |
55682965 | 952 | |
15e47304 | 953 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY); |
55682965 JB |
954 | if (!hdr) |
955 | return -1; | |
956 | ||
9360ffd1 DM |
957 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) || |
958 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) || | |
959 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
960 | cfg80211_rdev_list_generation) || | |
961 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
962 | dev->wiphy.retry_short) || | |
963 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
964 | dev->wiphy.retry_long) || | |
965 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
966 | dev->wiphy.frag_threshold) || | |
967 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
968 | dev->wiphy.rts_threshold) || | |
969 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, | |
970 | dev->wiphy.coverage_class) || | |
971 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, | |
972 | dev->wiphy.max_scan_ssids) || | |
973 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, | |
974 | dev->wiphy.max_sched_scan_ssids) || | |
975 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, | |
976 | dev->wiphy.max_scan_ie_len) || | |
977 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, | |
978 | dev->wiphy.max_sched_scan_ie_len) || | |
979 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, | |
980 | dev->wiphy.max_match_sets)) | |
981 | goto nla_put_failure; | |
982 | ||
983 | if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && | |
984 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) | |
985 | goto nla_put_failure; | |
986 | if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && | |
987 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) | |
988 | goto nla_put_failure; | |
989 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
990 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) | |
991 | goto nla_put_failure; | |
992 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && | |
993 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) | |
994 | goto nla_put_failure; | |
995 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && | |
996 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) | |
997 | goto nla_put_failure; | |
998 | if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && | |
999 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) | |
1000 | goto nla_put_failure; | |
1001 | ||
1002 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
1003 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
1004 | dev->wiphy.cipher_suites)) | |
1005 | goto nla_put_failure; | |
1006 | ||
1007 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, | |
1008 | dev->wiphy.max_num_pmkids)) | |
1009 | goto nla_put_failure; | |
1010 | ||
1011 | if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
1012 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) | |
1013 | goto nla_put_failure; | |
1014 | ||
1015 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, | |
1016 | dev->wiphy.available_antennas_tx) || | |
1017 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, | |
1018 | dev->wiphy.available_antennas_rx)) | |
1019 | goto nla_put_failure; | |
1020 | ||
1021 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && | |
1022 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, | |
1023 | dev->wiphy.probe_resp_offload)) | |
1024 | goto nla_put_failure; | |
87bbbe22 | 1025 | |
7f531e03 BR |
1026 | if ((dev->wiphy.available_antennas_tx || |
1027 | dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) { | |
afe0cbf8 BR |
1028 | u32 tx_ant = 0, rx_ant = 0; |
1029 | int res; | |
e35e4d28 | 1030 | res = rdev_get_antenna(dev, &tx_ant, &rx_ant); |
afe0cbf8 | 1031 | if (!res) { |
9360ffd1 DM |
1032 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, |
1033 | tx_ant) || | |
1034 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, | |
1035 | rx_ant)) | |
1036 | goto nla_put_failure; | |
afe0cbf8 BR |
1037 | } |
1038 | } | |
1039 | ||
7527a782 JB |
1040 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, |
1041 | dev->wiphy.interface_modes)) | |
f59ac048 LR |
1042 | goto nla_put_failure; |
1043 | ||
ee688b00 JB |
1044 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
1045 | if (!nl_bands) | |
1046 | goto nla_put_failure; | |
1047 | ||
1048 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
1049 | if (!dev->wiphy.bands[band]) | |
1050 | continue; | |
1051 | ||
1052 | nl_band = nla_nest_start(msg, band); | |
1053 | if (!nl_band) | |
1054 | goto nla_put_failure; | |
1055 | ||
d51626df | 1056 | /* add HT info */ |
9360ffd1 DM |
1057 | if (dev->wiphy.bands[band]->ht_cap.ht_supported && |
1058 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
1059 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
1060 | &dev->wiphy.bands[band]->ht_cap.mcs) || | |
1061 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
1062 | dev->wiphy.bands[band]->ht_cap.cap) || | |
1063 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
1064 | dev->wiphy.bands[band]->ht_cap.ampdu_factor) || | |
1065 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
1066 | dev->wiphy.bands[band]->ht_cap.ampdu_density))) | |
1067 | goto nla_put_failure; | |
d51626df | 1068 | |
bf0c111e MP |
1069 | /* add VHT info */ |
1070 | if (dev->wiphy.bands[band]->vht_cap.vht_supported && | |
1071 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
1072 | sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs), | |
1073 | &dev->wiphy.bands[band]->vht_cap.vht_mcs) || | |
1074 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
1075 | dev->wiphy.bands[band]->vht_cap.cap))) | |
1076 | goto nla_put_failure; | |
1077 | ||
ee688b00 JB |
1078 | /* add frequencies */ |
1079 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
1080 | if (!nl_freqs) | |
1081 | goto nla_put_failure; | |
1082 | ||
1083 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
1084 | nl_freq = nla_nest_start(msg, i); | |
1085 | if (!nl_freq) | |
1086 | goto nla_put_failure; | |
1087 | ||
1088 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
1089 | |
1090 | if (nl80211_msg_put_channel(msg, chan)) | |
1091 | goto nla_put_failure; | |
e2f367f2 | 1092 | |
ee688b00 JB |
1093 | nla_nest_end(msg, nl_freq); |
1094 | } | |
1095 | ||
1096 | nla_nest_end(msg, nl_freqs); | |
1097 | ||
1098 | /* add bitrates */ | |
1099 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1100 | if (!nl_rates) | |
1101 | goto nla_put_failure; | |
1102 | ||
1103 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
1104 | nl_rate = nla_nest_start(msg, i); | |
1105 | if (!nl_rate) | |
1106 | goto nla_put_failure; | |
1107 | ||
1108 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
9360ffd1 DM |
1109 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, |
1110 | rate->bitrate)) | |
1111 | goto nla_put_failure; | |
1112 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1113 | nla_put_flag(msg, | |
1114 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1115 | goto nla_put_failure; | |
ee688b00 JB |
1116 | |
1117 | nla_nest_end(msg, nl_rate); | |
1118 | } | |
1119 | ||
1120 | nla_nest_end(msg, nl_rates); | |
1121 | ||
1122 | nla_nest_end(msg, nl_band); | |
1123 | } | |
1124 | nla_nest_end(msg, nl_bands); | |
1125 | ||
8fdc621d JB |
1126 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
1127 | if (!nl_cmds) | |
1128 | goto nla_put_failure; | |
1129 | ||
1130 | i = 0; | |
1131 | #define CMD(op, n) \ | |
1132 | do { \ | |
1133 | if (dev->ops->op) { \ | |
1134 | i++; \ | |
9360ffd1 DM |
1135 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ |
1136 | goto nla_put_failure; \ | |
8fdc621d JB |
1137 | } \ |
1138 | } while (0) | |
1139 | ||
1140 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1141 | CMD(change_virtual_intf, SET_INTERFACE); | |
1142 | CMD(add_key, NEW_KEY); | |
8860020e | 1143 | CMD(start_ap, START_AP); |
8fdc621d JB |
1144 | CMD(add_station, NEW_STATION); |
1145 | CMD(add_mpath, NEW_MPATH); | |
24bdd9f4 | 1146 | CMD(update_mesh_config, SET_MESH_CONFIG); |
8fdc621d | 1147 | CMD(change_bss, SET_BSS); |
636a5d36 JM |
1148 | CMD(auth, AUTHENTICATE); |
1149 | CMD(assoc, ASSOCIATE); | |
1150 | CMD(deauth, DEAUTHENTICATE); | |
1151 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 1152 | CMD(join_ibss, JOIN_IBSS); |
29cbe68c | 1153 | CMD(join_mesh, JOIN_MESH); |
67fbb16b SO |
1154 | CMD(set_pmksa, SET_PMKSA); |
1155 | CMD(del_pmksa, DEL_PMKSA); | |
1156 | CMD(flush_pmksa, FLUSH_PMKSA); | |
7c4ef712 JB |
1157 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
1158 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); | |
13ae75b1 | 1159 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 1160 | CMD(mgmt_tx, FRAME); |
f7ca38df | 1161 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
5be83de5 | 1162 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 | 1163 | i++; |
9360ffd1 DM |
1164 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) |
1165 | goto nla_put_failure; | |
463d0183 | 1166 | } |
e8c9bd5b | 1167 | if (dev->ops->set_monitor_channel || dev->ops->start_ap || |
cc1d2806 | 1168 | dev->ops->join_mesh) { |
aa430da4 JB |
1169 | i++; |
1170 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1171 | goto nla_put_failure; | |
1172 | } | |
e8347eba | 1173 | CMD(set_wds_peer, SET_WDS_PEER); |
109086ce AN |
1174 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
1175 | CMD(tdls_mgmt, TDLS_MGMT); | |
1176 | CMD(tdls_oper, TDLS_OPER); | |
1177 | } | |
807f8a8c LC |
1178 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
1179 | CMD(sched_scan_start, START_SCHED_SCAN); | |
7f6cf311 | 1180 | CMD(probe_client, PROBE_CLIENT); |
1d9d9213 | 1181 | CMD(set_noack_map, SET_NOACK_MAP); |
5e760230 JB |
1182 | if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
1183 | i++; | |
9360ffd1 DM |
1184 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) |
1185 | goto nla_put_failure; | |
5e760230 | 1186 | } |
98104fde | 1187 | CMD(start_p2p_device, START_P2P_DEVICE); |
f4e583c8 | 1188 | CMD(set_mcast_rate, SET_MCAST_RATE); |
8fdc621d | 1189 | |
4745fc09 KV |
1190 | #ifdef CONFIG_NL80211_TESTMODE |
1191 | CMD(testmode_cmd, TESTMODE); | |
1192 | #endif | |
1193 | ||
8fdc621d | 1194 | #undef CMD |
b23aa676 | 1195 | |
6829c878 | 1196 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 | 1197 | i++; |
9360ffd1 DM |
1198 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) |
1199 | goto nla_put_failure; | |
b23aa676 SO |
1200 | } |
1201 | ||
6829c878 | 1202 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 | 1203 | i++; |
9360ffd1 DM |
1204 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) |
1205 | goto nla_put_failure; | |
b23aa676 SO |
1206 | } |
1207 | ||
8fdc621d JB |
1208 | nla_nest_end(msg, nl_cmds); |
1209 | ||
7c4ef712 | 1210 | if (dev->ops->remain_on_channel && |
9360ffd1 DM |
1211 | (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && |
1212 | nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1213 | dev->wiphy.max_remain_on_channel_duration)) | |
1214 | goto nla_put_failure; | |
a293911d | 1215 | |
9360ffd1 DM |
1216 | if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
1217 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) | |
1218 | goto nla_put_failure; | |
f7ca38df | 1219 | |
2e161f78 JB |
1220 | if (mgmt_stypes) { |
1221 | u16 stypes; | |
1222 | struct nlattr *nl_ftypes, *nl_ifs; | |
1223 | enum nl80211_iftype ift; | |
1224 | ||
1225 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
1226 | if (!nl_ifs) | |
1227 | goto nla_put_failure; | |
1228 | ||
1229 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1230 | nl_ftypes = nla_nest_start(msg, ift); | |
1231 | if (!nl_ftypes) | |
1232 | goto nla_put_failure; | |
1233 | i = 0; | |
1234 | stypes = mgmt_stypes[ift].tx; | |
1235 | while (stypes) { | |
9360ffd1 DM |
1236 | if ((stypes & 1) && |
1237 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1238 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1239 | goto nla_put_failure; | |
2e161f78 JB |
1240 | stypes >>= 1; |
1241 | i++; | |
1242 | } | |
1243 | nla_nest_end(msg, nl_ftypes); | |
1244 | } | |
1245 | ||
74b70a4e JB |
1246 | nla_nest_end(msg, nl_ifs); |
1247 | ||
2e161f78 JB |
1248 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1249 | if (!nl_ifs) | |
1250 | goto nla_put_failure; | |
1251 | ||
1252 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1253 | nl_ftypes = nla_nest_start(msg, ift); | |
1254 | if (!nl_ftypes) | |
1255 | goto nla_put_failure; | |
1256 | i = 0; | |
1257 | stypes = mgmt_stypes[ift].rx; | |
1258 | while (stypes) { | |
9360ffd1 DM |
1259 | if ((stypes & 1) && |
1260 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1261 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1262 | goto nla_put_failure; | |
2e161f78 JB |
1263 | stypes >>= 1; |
1264 | i++; | |
1265 | } | |
1266 | nla_nest_end(msg, nl_ftypes); | |
1267 | } | |
1268 | nla_nest_end(msg, nl_ifs); | |
1269 | } | |
1270 | ||
dfb89c56 | 1271 | #ifdef CONFIG_PM |
ff1b6e69 JB |
1272 | if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { |
1273 | struct nlattr *nl_wowlan; | |
1274 | ||
1275 | nl_wowlan = nla_nest_start(msg, | |
1276 | NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); | |
1277 | if (!nl_wowlan) | |
1278 | goto nla_put_failure; | |
1279 | ||
9360ffd1 DM |
1280 | if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) && |
1281 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
1282 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) && | |
1283 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
1284 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) && | |
1285 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
1286 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && | |
1287 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || | |
1288 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && | |
1289 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
1290 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && | |
1291 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
1292 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && | |
1293 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
1294 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) && | |
1295 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
1296 | goto nla_put_failure; | |
ff1b6e69 JB |
1297 | if (dev->wiphy.wowlan.n_patterns) { |
1298 | struct nl80211_wowlan_pattern_support pat = { | |
1299 | .max_patterns = dev->wiphy.wowlan.n_patterns, | |
1300 | .min_pattern_len = | |
1301 | dev->wiphy.wowlan.pattern_min_len, | |
1302 | .max_pattern_len = | |
1303 | dev->wiphy.wowlan.pattern_max_len, | |
bb92d199 AK |
1304 | .max_pkt_offset = |
1305 | dev->wiphy.wowlan.max_pkt_offset, | |
ff1b6e69 | 1306 | }; |
9360ffd1 DM |
1307 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1308 | sizeof(pat), &pat)) | |
1309 | goto nla_put_failure; | |
ff1b6e69 JB |
1310 | } |
1311 | ||
2a0e047e JB |
1312 | if (nl80211_send_wowlan_tcp_caps(dev, msg)) |
1313 | goto nla_put_failure; | |
1314 | ||
ff1b6e69 JB |
1315 | nla_nest_end(msg, nl_wowlan); |
1316 | } | |
dfb89c56 | 1317 | #endif |
ff1b6e69 | 1318 | |
7527a782 JB |
1319 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, |
1320 | dev->wiphy.software_iftypes)) | |
1321 | goto nla_put_failure; | |
1322 | ||
1323 | if (nl80211_put_iface_combinations(&dev->wiphy, msg)) | |
1324 | goto nla_put_failure; | |
1325 | ||
9360ffd1 DM |
1326 | if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
1327 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, | |
1328 | dev->wiphy.ap_sme_capa)) | |
1329 | goto nla_put_failure; | |
562a7480 | 1330 | |
9360ffd1 DM |
1331 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, |
1332 | dev->wiphy.features)) | |
1333 | goto nla_put_failure; | |
1f074bd8 | 1334 | |
9360ffd1 DM |
1335 | if (dev->wiphy.ht_capa_mod_mask && |
1336 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, | |
1337 | sizeof(*dev->wiphy.ht_capa_mod_mask), | |
1338 | dev->wiphy.ht_capa_mod_mask)) | |
1339 | goto nla_put_failure; | |
7e7c8926 | 1340 | |
77765eaf VT |
1341 | if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && |
1342 | dev->wiphy.max_acl_mac_addrs && | |
1343 | nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, | |
1344 | dev->wiphy.max_acl_mac_addrs)) | |
1345 | goto nla_put_failure; | |
1346 | ||
55682965 JB |
1347 | return genlmsg_end(msg, hdr); |
1348 | ||
1349 | nla_put_failure: | |
bc3ed28c TG |
1350 | genlmsg_cancel(msg, hdr); |
1351 | return -EMSGSIZE; | |
55682965 JB |
1352 | } |
1353 | ||
1354 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
1355 | { | |
1356 | int idx = 0; | |
1357 | int start = cb->args[0]; | |
1358 | struct cfg80211_registered_device *dev; | |
1359 | ||
a1794390 | 1360 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 1361 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
1362 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
1363 | continue; | |
b4637271 | 1364 | if (++idx <= start) |
55682965 | 1365 | continue; |
15e47304 | 1366 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 1367 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
b4637271 JV |
1368 | dev) < 0) { |
1369 | idx--; | |
55682965 | 1370 | break; |
b4637271 | 1371 | } |
55682965 | 1372 | } |
a1794390 | 1373 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1374 | |
1375 | cb->args[0] = idx; | |
1376 | ||
1377 | return skb->len; | |
1378 | } | |
1379 | ||
1380 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1381 | { | |
1382 | struct sk_buff *msg; | |
4c476991 | 1383 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 1384 | |
fd2120ca | 1385 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1386 | if (!msg) |
4c476991 | 1387 | return -ENOMEM; |
55682965 | 1388 | |
15e47304 | 1389 | if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) { |
4c476991 JB |
1390 | nlmsg_free(msg); |
1391 | return -ENOBUFS; | |
1392 | } | |
55682965 | 1393 | |
134e6375 | 1394 | return genlmsg_reply(msg, info); |
55682965 JB |
1395 | } |
1396 | ||
31888487 JM |
1397 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1398 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1399 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1400 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1401 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1402 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1403 | }; | |
1404 | ||
1405 | static int parse_txq_params(struct nlattr *tb[], | |
1406 | struct ieee80211_txq_params *txq_params) | |
1407 | { | |
a3304b0a | 1408 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
31888487 JM |
1409 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1410 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1411 | return -EINVAL; | |
1412 | ||
a3304b0a | 1413 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
31888487 JM |
1414 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1415 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1416 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1417 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1418 | ||
a3304b0a JB |
1419 | if (txq_params->ac >= NL80211_NUM_ACS) |
1420 | return -EINVAL; | |
1421 | ||
31888487 JM |
1422 | return 0; |
1423 | } | |
1424 | ||
f444de05 JB |
1425 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1426 | { | |
1427 | /* | |
cc1d2806 JB |
1428 | * You can only set the channel explicitly for WDS interfaces, |
1429 | * all others have their channel managed via their respective | |
1430 | * "establish a connection" command (connect, join, ...) | |
1431 | * | |
1432 | * For AP/GO and mesh mode, the channel can be set with the | |
1433 | * channel userspace API, but is only stored and passed to the | |
1434 | * low-level driver when the AP starts or the mesh is joined. | |
1435 | * This is for backward compatibility, userspace can also give | |
1436 | * the channel in the start-ap or join-mesh commands instead. | |
f444de05 JB |
1437 | * |
1438 | * Monitors are special as they are normally slaved to | |
e8c9bd5b JB |
1439 | * whatever else is going on, so they have their own special |
1440 | * operation to set the monitor channel if possible. | |
f444de05 JB |
1441 | */ |
1442 | return !wdev || | |
1443 | wdev->iftype == NL80211_IFTYPE_AP || | |
f444de05 | 1444 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
074ac8df JB |
1445 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1446 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1447 | } |
1448 | ||
683b6d3b JB |
1449 | static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, |
1450 | struct genl_info *info, | |
1451 | struct cfg80211_chan_def *chandef) | |
1452 | { | |
dbeca2ea | 1453 | u32 control_freq; |
683b6d3b JB |
1454 | |
1455 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1456 | return -EINVAL; | |
1457 | ||
1458 | control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1459 | ||
1460 | chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq); | |
3d9d1d66 JB |
1461 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; |
1462 | chandef->center_freq1 = control_freq; | |
1463 | chandef->center_freq2 = 0; | |
683b6d3b JB |
1464 | |
1465 | /* Primary channel not allowed */ | |
1466 | if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) | |
1467 | return -EINVAL; | |
1468 | ||
3d9d1d66 JB |
1469 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
1470 | enum nl80211_channel_type chantype; | |
1471 | ||
1472 | chantype = nla_get_u32( | |
1473 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1474 | ||
1475 | switch (chantype) { | |
1476 | case NL80211_CHAN_NO_HT: | |
1477 | case NL80211_CHAN_HT20: | |
1478 | case NL80211_CHAN_HT40PLUS: | |
1479 | case NL80211_CHAN_HT40MINUS: | |
1480 | cfg80211_chandef_create(chandef, chandef->chan, | |
1481 | chantype); | |
1482 | break; | |
1483 | default: | |
1484 | return -EINVAL; | |
1485 | } | |
1486 | } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) { | |
1487 | chandef->width = | |
1488 | nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]); | |
1489 | if (info->attrs[NL80211_ATTR_CENTER_FREQ1]) | |
1490 | chandef->center_freq1 = | |
1491 | nla_get_u32( | |
1492 | info->attrs[NL80211_ATTR_CENTER_FREQ1]); | |
1493 | if (info->attrs[NL80211_ATTR_CENTER_FREQ2]) | |
1494 | chandef->center_freq2 = | |
1495 | nla_get_u32( | |
1496 | info->attrs[NL80211_ATTR_CENTER_FREQ2]); | |
1497 | } | |
1498 | ||
9f5e8f6e | 1499 | if (!cfg80211_chandef_valid(chandef)) |
3d9d1d66 JB |
1500 | return -EINVAL; |
1501 | ||
9f5e8f6e JB |
1502 | if (!cfg80211_chandef_usable(&rdev->wiphy, chandef, |
1503 | IEEE80211_CHAN_DISABLED)) | |
3d9d1d66 JB |
1504 | return -EINVAL; |
1505 | ||
683b6d3b JB |
1506 | return 0; |
1507 | } | |
1508 | ||
f444de05 JB |
1509 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
1510 | struct wireless_dev *wdev, | |
1511 | struct genl_info *info) | |
1512 | { | |
683b6d3b | 1513 | struct cfg80211_chan_def chandef; |
f444de05 | 1514 | int result; |
e8c9bd5b JB |
1515 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
1516 | ||
1517 | if (wdev) | |
1518 | iftype = wdev->iftype; | |
f444de05 | 1519 | |
f444de05 JB |
1520 | if (!nl80211_can_set_dev_channel(wdev)) |
1521 | return -EOPNOTSUPP; | |
1522 | ||
683b6d3b JB |
1523 | result = nl80211_parse_chandef(rdev, info, &chandef); |
1524 | if (result) | |
1525 | return result; | |
f444de05 JB |
1526 | |
1527 | mutex_lock(&rdev->devlist_mtx); | |
e8c9bd5b | 1528 | switch (iftype) { |
aa430da4 JB |
1529 | case NL80211_IFTYPE_AP: |
1530 | case NL80211_IFTYPE_P2P_GO: | |
1531 | if (wdev->beacon_interval) { | |
1532 | result = -EBUSY; | |
1533 | break; | |
1534 | } | |
683b6d3b | 1535 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) { |
aa430da4 JB |
1536 | result = -EINVAL; |
1537 | break; | |
1538 | } | |
683b6d3b | 1539 | wdev->preset_chandef = chandef; |
aa430da4 JB |
1540 | result = 0; |
1541 | break; | |
cc1d2806 | 1542 | case NL80211_IFTYPE_MESH_POINT: |
683b6d3b | 1543 | result = cfg80211_set_mesh_channel(rdev, wdev, &chandef); |
cc1d2806 | 1544 | break; |
e8c9bd5b | 1545 | case NL80211_IFTYPE_MONITOR: |
683b6d3b | 1546 | result = cfg80211_set_monitor_channel(rdev, &chandef); |
e8c9bd5b | 1547 | break; |
aa430da4 | 1548 | default: |
e8c9bd5b | 1549 | result = -EINVAL; |
f444de05 JB |
1550 | } |
1551 | mutex_unlock(&rdev->devlist_mtx); | |
1552 | ||
1553 | return result; | |
1554 | } | |
1555 | ||
1556 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
1557 | { | |
4c476991 JB |
1558 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1559 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 1560 | |
4c476991 | 1561 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
1562 | } |
1563 | ||
e8347eba BJ |
1564 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
1565 | { | |
43b19952 JB |
1566 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1567 | struct net_device *dev = info->user_ptr[1]; | |
1568 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 1569 | const u8 *bssid; |
e8347eba BJ |
1570 | |
1571 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1572 | return -EINVAL; | |
1573 | ||
43b19952 JB |
1574 | if (netif_running(dev)) |
1575 | return -EBUSY; | |
e8347eba | 1576 | |
43b19952 JB |
1577 | if (!rdev->ops->set_wds_peer) |
1578 | return -EOPNOTSUPP; | |
e8347eba | 1579 | |
43b19952 JB |
1580 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
1581 | return -EOPNOTSUPP; | |
e8347eba BJ |
1582 | |
1583 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
e35e4d28 | 1584 | return rdev_set_wds_peer(rdev, dev, bssid); |
e8347eba BJ |
1585 | } |
1586 | ||
1587 | ||
55682965 JB |
1588 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
1589 | { | |
1590 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
1591 | struct net_device *netdev = NULL; |
1592 | struct wireless_dev *wdev; | |
a1e567c8 | 1593 | int result = 0, rem_txq_params = 0; |
31888487 | 1594 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
1595 | u32 changed; |
1596 | u8 retry_short = 0, retry_long = 0; | |
1597 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 1598 | u8 coverage_class = 0; |
55682965 | 1599 | |
f444de05 JB |
1600 | /* |
1601 | * Try to find the wiphy and netdev. Normally this | |
1602 | * function shouldn't need the netdev, but this is | |
1603 | * done for backward compatibility -- previously | |
1604 | * setting the channel was done per wiphy, but now | |
1605 | * it is per netdev. Previous userland like hostapd | |
1606 | * also passed a netdev to set_wiphy, so that it is | |
1607 | * possible to let that go to the right netdev! | |
1608 | */ | |
4bbf4d56 JB |
1609 | mutex_lock(&cfg80211_mutex); |
1610 | ||
f444de05 JB |
1611 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
1612 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
1613 | ||
1614 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
1615 | if (netdev && netdev->ieee80211_ptr) { | |
1616 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
1617 | mutex_lock(&rdev->mtx); | |
1618 | } else | |
1619 | netdev = NULL; | |
4bbf4d56 JB |
1620 | } |
1621 | ||
f444de05 | 1622 | if (!netdev) { |
878d9ec7 JB |
1623 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
1624 | info->attrs); | |
f444de05 JB |
1625 | if (IS_ERR(rdev)) { |
1626 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 1627 | return PTR_ERR(rdev); |
f444de05 JB |
1628 | } |
1629 | wdev = NULL; | |
1630 | netdev = NULL; | |
1631 | result = 0; | |
1632 | ||
1633 | mutex_lock(&rdev->mtx); | |
71fe96bf | 1634 | } else |
f444de05 | 1635 | wdev = netdev->ieee80211_ptr; |
f444de05 JB |
1636 | |
1637 | /* | |
1638 | * end workaround code, by now the rdev is available | |
1639 | * and locked, and wdev may or may not be NULL. | |
1640 | */ | |
4bbf4d56 JB |
1641 | |
1642 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
1643 | result = cfg80211_dev_rename( |
1644 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
1645 | |
1646 | mutex_unlock(&cfg80211_mutex); | |
1647 | ||
1648 | if (result) | |
1649 | goto bad_res; | |
31888487 JM |
1650 | |
1651 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
1652 | struct ieee80211_txq_params txq_params; | |
1653 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
1654 | ||
1655 | if (!rdev->ops->set_txq_params) { | |
1656 | result = -EOPNOTSUPP; | |
1657 | goto bad_res; | |
1658 | } | |
1659 | ||
f70f01c2 EP |
1660 | if (!netdev) { |
1661 | result = -EINVAL; | |
1662 | goto bad_res; | |
1663 | } | |
1664 | ||
133a3ff2 JB |
1665 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
1666 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
1667 | result = -EINVAL; | |
1668 | goto bad_res; | |
1669 | } | |
1670 | ||
2b5f8b0b JB |
1671 | if (!netif_running(netdev)) { |
1672 | result = -ENETDOWN; | |
1673 | goto bad_res; | |
1674 | } | |
1675 | ||
31888487 JM |
1676 | nla_for_each_nested(nl_txq_params, |
1677 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
1678 | rem_txq_params) { | |
1679 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
1680 | nla_data(nl_txq_params), | |
1681 | nla_len(nl_txq_params), | |
1682 | txq_params_policy); | |
1683 | result = parse_txq_params(tb, &txq_params); | |
1684 | if (result) | |
1685 | goto bad_res; | |
1686 | ||
e35e4d28 HG |
1687 | result = rdev_set_txq_params(rdev, netdev, |
1688 | &txq_params); | |
31888487 JM |
1689 | if (result) |
1690 | goto bad_res; | |
1691 | } | |
1692 | } | |
55682965 | 1693 | |
72bdcf34 | 1694 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
71fe96bf JB |
1695 | result = __nl80211_set_channel(rdev, |
1696 | nl80211_can_set_dev_channel(wdev) ? wdev : NULL, | |
1697 | info); | |
72bdcf34 JM |
1698 | if (result) |
1699 | goto bad_res; | |
1700 | } | |
1701 | ||
98d2ff8b | 1702 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
c8442118 | 1703 | struct wireless_dev *txp_wdev = wdev; |
98d2ff8b JO |
1704 | enum nl80211_tx_power_setting type; |
1705 | int idx, mbm = 0; | |
1706 | ||
c8442118 JB |
1707 | if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) |
1708 | txp_wdev = NULL; | |
1709 | ||
98d2ff8b | 1710 | if (!rdev->ops->set_tx_power) { |
60ea385f | 1711 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1712 | goto bad_res; |
1713 | } | |
1714 | ||
1715 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1716 | type = nla_get_u32(info->attrs[idx]); | |
1717 | ||
1718 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1719 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1720 | result = -EINVAL; | |
1721 | goto bad_res; | |
1722 | } | |
1723 | ||
1724 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1725 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1726 | mbm = nla_get_u32(info->attrs[idx]); | |
1727 | } | |
1728 | ||
c8442118 | 1729 | result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); |
98d2ff8b JO |
1730 | if (result) |
1731 | goto bad_res; | |
1732 | } | |
1733 | ||
afe0cbf8 BR |
1734 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
1735 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1736 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
1737 | if ((!rdev->wiphy.available_antennas_tx && |
1738 | !rdev->wiphy.available_antennas_rx) || | |
1739 | !rdev->ops->set_antenna) { | |
afe0cbf8 BR |
1740 | result = -EOPNOTSUPP; |
1741 | goto bad_res; | |
1742 | } | |
1743 | ||
1744 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1745 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1746 | ||
a7ffac95 | 1747 | /* reject antenna configurations which don't match the |
7f531e03 BR |
1748 | * available antenna masks, except for the "all" mask */ |
1749 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
1750 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { | |
a7ffac95 BR |
1751 | result = -EINVAL; |
1752 | goto bad_res; | |
1753 | } | |
1754 | ||
7f531e03 BR |
1755 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
1756 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 1757 | |
e35e4d28 | 1758 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); |
afe0cbf8 BR |
1759 | if (result) |
1760 | goto bad_res; | |
1761 | } | |
1762 | ||
b9a5f8ca JM |
1763 | changed = 0; |
1764 | ||
1765 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1766 | retry_short = nla_get_u8( | |
1767 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1768 | if (retry_short == 0) { | |
1769 | result = -EINVAL; | |
1770 | goto bad_res; | |
1771 | } | |
1772 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1773 | } | |
1774 | ||
1775 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1776 | retry_long = nla_get_u8( | |
1777 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1778 | if (retry_long == 0) { | |
1779 | result = -EINVAL; | |
1780 | goto bad_res; | |
1781 | } | |
1782 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1783 | } | |
1784 | ||
1785 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1786 | frag_threshold = nla_get_u32( | |
1787 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1788 | if (frag_threshold < 256) { | |
1789 | result = -EINVAL; | |
1790 | goto bad_res; | |
1791 | } | |
1792 | if (frag_threshold != (u32) -1) { | |
1793 | /* | |
1794 | * Fragments (apart from the last one) are required to | |
1795 | * have even length. Make the fragmentation code | |
1796 | * simpler by stripping LSB should someone try to use | |
1797 | * odd threshold value. | |
1798 | */ | |
1799 | frag_threshold &= ~0x1; | |
1800 | } | |
1801 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1802 | } | |
1803 | ||
1804 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1805 | rts_threshold = nla_get_u32( | |
1806 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1807 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1808 | } | |
1809 | ||
81077e82 LT |
1810 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1811 | coverage_class = nla_get_u8( | |
1812 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1813 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1814 | } | |
1815 | ||
b9a5f8ca JM |
1816 | if (changed) { |
1817 | u8 old_retry_short, old_retry_long; | |
1818 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1819 | u8 old_coverage_class; |
b9a5f8ca JM |
1820 | |
1821 | if (!rdev->ops->set_wiphy_params) { | |
1822 | result = -EOPNOTSUPP; | |
1823 | goto bad_res; | |
1824 | } | |
1825 | ||
1826 | old_retry_short = rdev->wiphy.retry_short; | |
1827 | old_retry_long = rdev->wiphy.retry_long; | |
1828 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1829 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1830 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1831 | |
1832 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1833 | rdev->wiphy.retry_short = retry_short; | |
1834 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1835 | rdev->wiphy.retry_long = retry_long; | |
1836 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1837 | rdev->wiphy.frag_threshold = frag_threshold; | |
1838 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1839 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1840 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1841 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca | 1842 | |
e35e4d28 | 1843 | result = rdev_set_wiphy_params(rdev, changed); |
b9a5f8ca JM |
1844 | if (result) { |
1845 | rdev->wiphy.retry_short = old_retry_short; | |
1846 | rdev->wiphy.retry_long = old_retry_long; | |
1847 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1848 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1849 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1850 | } |
1851 | } | |
72bdcf34 | 1852 | |
306d6112 | 1853 | bad_res: |
4bbf4d56 | 1854 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1855 | if (netdev) |
1856 | dev_put(netdev); | |
55682965 JB |
1857 | return result; |
1858 | } | |
1859 | ||
71bbc994 JB |
1860 | static inline u64 wdev_id(struct wireless_dev *wdev) |
1861 | { | |
1862 | return (u64)wdev->identifier | | |
1863 | ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32); | |
1864 | } | |
55682965 | 1865 | |
683b6d3b JB |
1866 | static int nl80211_send_chandef(struct sk_buff *msg, |
1867 | struct cfg80211_chan_def *chandef) | |
1868 | { | |
9f5e8f6e | 1869 | WARN_ON(!cfg80211_chandef_valid(chandef)); |
3d9d1d66 | 1870 | |
683b6d3b JB |
1871 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, |
1872 | chandef->chan->center_freq)) | |
1873 | return -ENOBUFS; | |
3d9d1d66 JB |
1874 | switch (chandef->width) { |
1875 | case NL80211_CHAN_WIDTH_20_NOHT: | |
1876 | case NL80211_CHAN_WIDTH_20: | |
1877 | case NL80211_CHAN_WIDTH_40: | |
1878 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
1879 | cfg80211_get_chandef_type(chandef))) | |
1880 | return -ENOBUFS; | |
1881 | break; | |
1882 | default: | |
1883 | break; | |
1884 | } | |
1885 | if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width)) | |
1886 | return -ENOBUFS; | |
1887 | if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1)) | |
1888 | return -ENOBUFS; | |
1889 | if (chandef->center_freq2 && | |
1890 | nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2)) | |
683b6d3b JB |
1891 | return -ENOBUFS; |
1892 | return 0; | |
1893 | } | |
1894 | ||
15e47304 | 1895 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
d726405a | 1896 | struct cfg80211_registered_device *rdev, |
72fb2abc | 1897 | struct wireless_dev *wdev) |
55682965 | 1898 | { |
72fb2abc | 1899 | struct net_device *dev = wdev->netdev; |
55682965 JB |
1900 | void *hdr; |
1901 | ||
15e47304 | 1902 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE); |
55682965 JB |
1903 | if (!hdr) |
1904 | return -1; | |
1905 | ||
72fb2abc JB |
1906 | if (dev && |
1907 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
98104fde | 1908 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
72fb2abc JB |
1909 | goto nla_put_failure; |
1910 | ||
1911 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
1912 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
71bbc994 | 1913 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
98104fde | 1914 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
9360ffd1 DM |
1915 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
1916 | rdev->devlist_generation ^ | |
1917 | (cfg80211_rdev_list_generation << 2))) | |
1918 | goto nla_put_failure; | |
f5ea9120 | 1919 | |
5b7ccaf3 | 1920 | if (rdev->ops->get_channel) { |
683b6d3b JB |
1921 | int ret; |
1922 | struct cfg80211_chan_def chandef; | |
1923 | ||
1924 | ret = rdev_get_channel(rdev, wdev, &chandef); | |
1925 | if (ret == 0) { | |
1926 | if (nl80211_send_chandef(msg, &chandef)) | |
1927 | goto nla_put_failure; | |
1928 | } | |
d91df0e3 PF |
1929 | } |
1930 | ||
b84e7a05 AQ |
1931 | if (wdev->ssid_len) { |
1932 | if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid)) | |
1933 | goto nla_put_failure; | |
1934 | } | |
1935 | ||
55682965 JB |
1936 | return genlmsg_end(msg, hdr); |
1937 | ||
1938 | nla_put_failure: | |
bc3ed28c TG |
1939 | genlmsg_cancel(msg, hdr); |
1940 | return -EMSGSIZE; | |
55682965 JB |
1941 | } |
1942 | ||
1943 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1944 | { | |
1945 | int wp_idx = 0; | |
1946 | int if_idx = 0; | |
1947 | int wp_start = cb->args[0]; | |
1948 | int if_start = cb->args[1]; | |
f5ea9120 | 1949 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1950 | struct wireless_dev *wdev; |
1951 | ||
a1794390 | 1952 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1953 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1954 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1955 | continue; |
bba95fef JB |
1956 | if (wp_idx < wp_start) { |
1957 | wp_idx++; | |
55682965 | 1958 | continue; |
bba95fef | 1959 | } |
55682965 JB |
1960 | if_idx = 0; |
1961 | ||
f5ea9120 | 1962 | mutex_lock(&rdev->devlist_mtx); |
89a54e48 | 1963 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
bba95fef JB |
1964 | if (if_idx < if_start) { |
1965 | if_idx++; | |
55682965 | 1966 | continue; |
bba95fef | 1967 | } |
15e47304 | 1968 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 1969 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
72fb2abc | 1970 | rdev, wdev) < 0) { |
f5ea9120 | 1971 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1972 | goto out; |
1973 | } | |
1974 | if_idx++; | |
55682965 | 1975 | } |
f5ea9120 | 1976 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1977 | |
1978 | wp_idx++; | |
55682965 | 1979 | } |
bba95fef | 1980 | out: |
a1794390 | 1981 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1982 | |
1983 | cb->args[0] = wp_idx; | |
1984 | cb->args[1] = if_idx; | |
1985 | ||
1986 | return skb->len; | |
1987 | } | |
1988 | ||
1989 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1990 | { | |
1991 | struct sk_buff *msg; | |
4c476991 | 1992 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
72fb2abc | 1993 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 1994 | |
fd2120ca | 1995 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1996 | if (!msg) |
4c476991 | 1997 | return -ENOMEM; |
55682965 | 1998 | |
15e47304 | 1999 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
72fb2abc | 2000 | dev, wdev) < 0) { |
4c476991 JB |
2001 | nlmsg_free(msg); |
2002 | return -ENOBUFS; | |
2003 | } | |
55682965 | 2004 | |
134e6375 | 2005 | return genlmsg_reply(msg, info); |
55682965 JB |
2006 | } |
2007 | ||
66f7ac50 MW |
2008 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
2009 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
2010 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
2011 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
2012 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
2013 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
2014 | }; | |
2015 | ||
2016 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
2017 | { | |
2018 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
2019 | int flag; | |
2020 | ||
2021 | *mntrflags = 0; | |
2022 | ||
2023 | if (!nla) | |
2024 | return -EINVAL; | |
2025 | ||
2026 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
2027 | nla, mntr_flags_policy)) | |
2028 | return -EINVAL; | |
2029 | ||
2030 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
2031 | if (flags[flag]) | |
2032 | *mntrflags |= (1<<flag); | |
2033 | ||
2034 | return 0; | |
2035 | } | |
2036 | ||
9bc383de | 2037 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
2038 | struct net_device *netdev, u8 use_4addr, |
2039 | enum nl80211_iftype iftype) | |
9bc383de | 2040 | { |
ad4bb6f8 | 2041 | if (!use_4addr) { |
f350a0a8 | 2042 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 2043 | return -EBUSY; |
9bc383de | 2044 | return 0; |
ad4bb6f8 | 2045 | } |
9bc383de JB |
2046 | |
2047 | switch (iftype) { | |
2048 | case NL80211_IFTYPE_AP_VLAN: | |
2049 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
2050 | return 0; | |
2051 | break; | |
2052 | case NL80211_IFTYPE_STATION: | |
2053 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
2054 | return 0; | |
2055 | break; | |
2056 | default: | |
2057 | break; | |
2058 | } | |
2059 | ||
2060 | return -EOPNOTSUPP; | |
2061 | } | |
2062 | ||
55682965 JB |
2063 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
2064 | { | |
4c476991 | 2065 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2066 | struct vif_params params; |
e36d56b6 | 2067 | int err; |
04a773ad | 2068 | enum nl80211_iftype otype, ntype; |
4c476991 | 2069 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 2070 | u32 _flags, *flags = NULL; |
ac7f9cfa | 2071 | bool change = false; |
55682965 | 2072 | |
2ec600d6 LCC |
2073 | memset(¶ms, 0, sizeof(params)); |
2074 | ||
04a773ad | 2075 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 2076 | |
723b038d | 2077 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 2078 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 2079 | if (otype != ntype) |
ac7f9cfa | 2080 | change = true; |
4c476991 JB |
2081 | if (ntype > NL80211_IFTYPE_MAX) |
2082 | return -EINVAL; | |
723b038d JB |
2083 | } |
2084 | ||
92ffe055 | 2085 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
2086 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2087 | ||
4c476991 JB |
2088 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
2089 | return -EINVAL; | |
29cbe68c JB |
2090 | if (netif_running(dev)) |
2091 | return -EBUSY; | |
2092 | ||
2093 | wdev_lock(wdev); | |
2094 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2095 | IEEE80211_MAX_MESH_ID_LEN); | |
2096 | wdev->mesh_id_up_len = | |
2097 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2098 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2099 | wdev->mesh_id_up_len); | |
2100 | wdev_unlock(wdev); | |
2ec600d6 LCC |
2101 | } |
2102 | ||
8b787643 FF |
2103 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
2104 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
2105 | change = true; | |
ad4bb6f8 | 2106 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 2107 | if (err) |
4c476991 | 2108 | return err; |
8b787643 FF |
2109 | } else { |
2110 | params.use_4addr = -1; | |
2111 | } | |
2112 | ||
92ffe055 | 2113 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
2114 | if (ntype != NL80211_IFTYPE_MONITOR) |
2115 | return -EINVAL; | |
92ffe055 JB |
2116 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
2117 | &_flags); | |
ac7f9cfa | 2118 | if (err) |
4c476991 | 2119 | return err; |
ac7f9cfa JB |
2120 | |
2121 | flags = &_flags; | |
2122 | change = true; | |
92ffe055 | 2123 | } |
3b85875a | 2124 | |
ac7f9cfa | 2125 | if (change) |
3d54d255 | 2126 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
2127 | else |
2128 | err = 0; | |
60719ffd | 2129 | |
9bc383de JB |
2130 | if (!err && params.use_4addr != -1) |
2131 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
2132 | ||
55682965 JB |
2133 | return err; |
2134 | } | |
2135 | ||
2136 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
2137 | { | |
4c476991 | 2138 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2139 | struct vif_params params; |
84efbb84 | 2140 | struct wireless_dev *wdev; |
1c90f9d4 | 2141 | struct sk_buff *msg; |
55682965 JB |
2142 | int err; |
2143 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 2144 | u32 flags; |
55682965 | 2145 | |
2ec600d6 LCC |
2146 | memset(¶ms, 0, sizeof(params)); |
2147 | ||
55682965 JB |
2148 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
2149 | return -EINVAL; | |
2150 | ||
2151 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2152 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2153 | if (type > NL80211_IFTYPE_MAX) | |
2154 | return -EINVAL; | |
2155 | } | |
2156 | ||
79c97e97 | 2157 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
2158 | !(rdev->wiphy.interface_modes & (1 << type))) |
2159 | return -EOPNOTSUPP; | |
55682965 | 2160 | |
1c18f145 AS |
2161 | if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) { |
2162 | nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], | |
2163 | ETH_ALEN); | |
2164 | if (!is_valid_ether_addr(params.macaddr)) | |
2165 | return -EADDRNOTAVAIL; | |
2166 | } | |
2167 | ||
9bc383de | 2168 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 2169 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 2170 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 2171 | if (err) |
4c476991 | 2172 | return err; |
9bc383de | 2173 | } |
8b787643 | 2174 | |
1c90f9d4 JB |
2175 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2176 | if (!msg) | |
2177 | return -ENOMEM; | |
2178 | ||
66f7ac50 MW |
2179 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
2180 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2181 | &flags); | |
e35e4d28 HG |
2182 | wdev = rdev_add_virtual_intf(rdev, |
2183 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), | |
2184 | type, err ? NULL : &flags, ¶ms); | |
1c90f9d4 JB |
2185 | if (IS_ERR(wdev)) { |
2186 | nlmsg_free(msg); | |
84efbb84 | 2187 | return PTR_ERR(wdev); |
1c90f9d4 | 2188 | } |
2ec600d6 | 2189 | |
98104fde JB |
2190 | switch (type) { |
2191 | case NL80211_IFTYPE_MESH_POINT: | |
2192 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2193 | break; | |
29cbe68c JB |
2194 | wdev_lock(wdev); |
2195 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2196 | IEEE80211_MAX_MESH_ID_LEN); | |
2197 | wdev->mesh_id_up_len = | |
2198 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2199 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2200 | wdev->mesh_id_up_len); | |
2201 | wdev_unlock(wdev); | |
98104fde JB |
2202 | break; |
2203 | case NL80211_IFTYPE_P2P_DEVICE: | |
2204 | /* | |
2205 | * P2P Device doesn't have a netdev, so doesn't go | |
2206 | * through the netdev notifier and must be added here | |
2207 | */ | |
2208 | mutex_init(&wdev->mtx); | |
2209 | INIT_LIST_HEAD(&wdev->event_list); | |
2210 | spin_lock_init(&wdev->event_lock); | |
2211 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2212 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2213 | ||
2214 | mutex_lock(&rdev->devlist_mtx); | |
2215 | wdev->identifier = ++rdev->wdev_id; | |
2216 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2217 | rdev->devlist_generation++; | |
2218 | mutex_unlock(&rdev->devlist_mtx); | |
2219 | break; | |
2220 | default: | |
2221 | break; | |
29cbe68c JB |
2222 | } |
2223 | ||
15e47304 | 2224 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
1c90f9d4 JB |
2225 | rdev, wdev) < 0) { |
2226 | nlmsg_free(msg); | |
2227 | return -ENOBUFS; | |
2228 | } | |
2229 | ||
2230 | return genlmsg_reply(msg, info); | |
55682965 JB |
2231 | } |
2232 | ||
2233 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2234 | { | |
4c476991 | 2235 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
84efbb84 | 2236 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 2237 | |
4c476991 JB |
2238 | if (!rdev->ops->del_virtual_intf) |
2239 | return -EOPNOTSUPP; | |
55682965 | 2240 | |
84efbb84 JB |
2241 | /* |
2242 | * If we remove a wireless device without a netdev then clear | |
2243 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2244 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2245 | * since the wdev has been freed, unlike with a netdev where | |
2246 | * we need the dev_put() for the netdev to really be freed. | |
2247 | */ | |
2248 | if (!wdev->netdev) | |
2249 | info->user_ptr[1] = NULL; | |
2250 | ||
e35e4d28 | 2251 | return rdev_del_virtual_intf(rdev, wdev); |
55682965 JB |
2252 | } |
2253 | ||
1d9d9213 SW |
2254 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
2255 | { | |
2256 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2257 | struct net_device *dev = info->user_ptr[1]; | |
2258 | u16 noack_map; | |
2259 | ||
2260 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2261 | return -EINVAL; | |
2262 | ||
2263 | if (!rdev->ops->set_noack_map) | |
2264 | return -EOPNOTSUPP; | |
2265 | ||
2266 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2267 | ||
e35e4d28 | 2268 | return rdev_set_noack_map(rdev, dev, noack_map); |
1d9d9213 SW |
2269 | } |
2270 | ||
41ade00f JB |
2271 | struct get_key_cookie { |
2272 | struct sk_buff *msg; | |
2273 | int error; | |
b9454e83 | 2274 | int idx; |
41ade00f JB |
2275 | }; |
2276 | ||
2277 | static void get_key_callback(void *c, struct key_params *params) | |
2278 | { | |
b9454e83 | 2279 | struct nlattr *key; |
41ade00f JB |
2280 | struct get_key_cookie *cookie = c; |
2281 | ||
9360ffd1 DM |
2282 | if ((params->key && |
2283 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2284 | params->key_len, params->key)) || | |
2285 | (params->seq && | |
2286 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2287 | params->seq_len, params->seq)) || | |
2288 | (params->cipher && | |
2289 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2290 | params->cipher))) | |
2291 | goto nla_put_failure; | |
41ade00f | 2292 | |
b9454e83 JB |
2293 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
2294 | if (!key) | |
2295 | goto nla_put_failure; | |
2296 | ||
9360ffd1 DM |
2297 | if ((params->key && |
2298 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2299 | params->key_len, params->key)) || | |
2300 | (params->seq && | |
2301 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2302 | params->seq_len, params->seq)) || | |
2303 | (params->cipher && | |
2304 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2305 | params->cipher))) | |
2306 | goto nla_put_failure; | |
b9454e83 | 2307 | |
9360ffd1 DM |
2308 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
2309 | goto nla_put_failure; | |
b9454e83 JB |
2310 | |
2311 | nla_nest_end(cookie->msg, key); | |
2312 | ||
41ade00f JB |
2313 | return; |
2314 | nla_put_failure: | |
2315 | cookie->error = 1; | |
2316 | } | |
2317 | ||
2318 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2319 | { | |
4c476991 | 2320 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2321 | int err; |
4c476991 | 2322 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2323 | u8 key_idx = 0; |
e31b8213 JB |
2324 | const u8 *mac_addr = NULL; |
2325 | bool pairwise; | |
41ade00f JB |
2326 | struct get_key_cookie cookie = { |
2327 | .error = 0, | |
2328 | }; | |
2329 | void *hdr; | |
2330 | struct sk_buff *msg; | |
2331 | ||
2332 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2333 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2334 | ||
3cfcf6ac | 2335 | if (key_idx > 5) |
41ade00f JB |
2336 | return -EINVAL; |
2337 | ||
2338 | if (info->attrs[NL80211_ATTR_MAC]) | |
2339 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2340 | ||
e31b8213 JB |
2341 | pairwise = !!mac_addr; |
2342 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2343 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2344 | if (kt >= NUM_NL80211_KEYTYPES) | |
2345 | return -EINVAL; | |
2346 | if (kt != NL80211_KEYTYPE_GROUP && | |
2347 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2348 | return -EINVAL; | |
2349 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2350 | } | |
2351 | ||
4c476991 JB |
2352 | if (!rdev->ops->get_key) |
2353 | return -EOPNOTSUPP; | |
41ade00f | 2354 | |
fd2120ca | 2355 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2356 | if (!msg) |
2357 | return -ENOMEM; | |
41ade00f | 2358 | |
15e47304 | 2359 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
41ade00f | 2360 | NL80211_CMD_NEW_KEY); |
4c476991 JB |
2361 | if (IS_ERR(hdr)) |
2362 | return PTR_ERR(hdr); | |
41ade00f JB |
2363 | |
2364 | cookie.msg = msg; | |
b9454e83 | 2365 | cookie.idx = key_idx; |
41ade00f | 2366 | |
9360ffd1 DM |
2367 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2368 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2369 | goto nla_put_failure; | |
2370 | if (mac_addr && | |
2371 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2372 | goto nla_put_failure; | |
41ade00f | 2373 | |
e31b8213 JB |
2374 | if (pairwise && mac_addr && |
2375 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2376 | return -ENOENT; | |
2377 | ||
e35e4d28 HG |
2378 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, |
2379 | get_key_callback); | |
41ade00f JB |
2380 | |
2381 | if (err) | |
6c95e2a2 | 2382 | goto free_msg; |
41ade00f JB |
2383 | |
2384 | if (cookie.error) | |
2385 | goto nla_put_failure; | |
2386 | ||
2387 | genlmsg_end(msg, hdr); | |
4c476991 | 2388 | return genlmsg_reply(msg, info); |
41ade00f JB |
2389 | |
2390 | nla_put_failure: | |
2391 | err = -ENOBUFS; | |
6c95e2a2 | 2392 | free_msg: |
41ade00f | 2393 | nlmsg_free(msg); |
41ade00f JB |
2394 | return err; |
2395 | } | |
2396 | ||
2397 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2398 | { | |
4c476991 | 2399 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 2400 | struct key_parse key; |
41ade00f | 2401 | int err; |
4c476991 | 2402 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2403 | |
b9454e83 JB |
2404 | err = nl80211_parse_key(info, &key); |
2405 | if (err) | |
2406 | return err; | |
41ade00f | 2407 | |
b9454e83 | 2408 | if (key.idx < 0) |
41ade00f JB |
2409 | return -EINVAL; |
2410 | ||
b9454e83 JB |
2411 | /* only support setting default key */ |
2412 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
2413 | return -EINVAL; |
2414 | ||
dbd2fd65 | 2415 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 2416 | |
dbd2fd65 JB |
2417 | if (key.def) { |
2418 | if (!rdev->ops->set_default_key) { | |
2419 | err = -EOPNOTSUPP; | |
2420 | goto out; | |
2421 | } | |
41ade00f | 2422 | |
dbd2fd65 JB |
2423 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2424 | if (err) | |
2425 | goto out; | |
2426 | ||
e35e4d28 | 2427 | err = rdev_set_default_key(rdev, dev, key.idx, |
dbd2fd65 JB |
2428 | key.def_uni, key.def_multi); |
2429 | ||
2430 | if (err) | |
2431 | goto out; | |
fffd0934 | 2432 | |
3d23e349 | 2433 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
2434 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2435 | #endif | |
2436 | } else { | |
2437 | if (key.def_uni || !key.def_multi) { | |
2438 | err = -EINVAL; | |
2439 | goto out; | |
2440 | } | |
2441 | ||
2442 | if (!rdev->ops->set_default_mgmt_key) { | |
2443 | err = -EOPNOTSUPP; | |
2444 | goto out; | |
2445 | } | |
2446 | ||
2447 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2448 | if (err) | |
2449 | goto out; | |
2450 | ||
e35e4d28 | 2451 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); |
dbd2fd65 JB |
2452 | if (err) |
2453 | goto out; | |
2454 | ||
2455 | #ifdef CONFIG_CFG80211_WEXT | |
2456 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 2457 | #endif |
dbd2fd65 JB |
2458 | } |
2459 | ||
2460 | out: | |
fffd0934 | 2461 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2462 | |
41ade00f JB |
2463 | return err; |
2464 | } | |
2465 | ||
2466 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
2467 | { | |
4c476991 | 2468 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 2469 | int err; |
4c476991 | 2470 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 2471 | struct key_parse key; |
e31b8213 | 2472 | const u8 *mac_addr = NULL; |
41ade00f | 2473 | |
b9454e83 JB |
2474 | err = nl80211_parse_key(info, &key); |
2475 | if (err) | |
2476 | return err; | |
41ade00f | 2477 | |
b9454e83 | 2478 | if (!key.p.key) |
41ade00f JB |
2479 | return -EINVAL; |
2480 | ||
41ade00f JB |
2481 | if (info->attrs[NL80211_ATTR_MAC]) |
2482 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2483 | ||
e31b8213 JB |
2484 | if (key.type == -1) { |
2485 | if (mac_addr) | |
2486 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2487 | else | |
2488 | key.type = NL80211_KEYTYPE_GROUP; | |
2489 | } | |
2490 | ||
2491 | /* for now */ | |
2492 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2493 | key.type != NL80211_KEYTYPE_GROUP) | |
2494 | return -EINVAL; | |
2495 | ||
4c476991 JB |
2496 | if (!rdev->ops->add_key) |
2497 | return -EOPNOTSUPP; | |
25e47c18 | 2498 | |
e31b8213 JB |
2499 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
2500 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2501 | mac_addr)) | |
4c476991 | 2502 | return -EINVAL; |
41ade00f | 2503 | |
fffd0934 JB |
2504 | wdev_lock(dev->ieee80211_ptr); |
2505 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2506 | if (!err) | |
e35e4d28 HG |
2507 | err = rdev_add_key(rdev, dev, key.idx, |
2508 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2509 | mac_addr, &key.p); | |
fffd0934 | 2510 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2511 | |
41ade00f JB |
2512 | return err; |
2513 | } | |
2514 | ||
2515 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
2516 | { | |
4c476991 | 2517 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2518 | int err; |
4c476991 | 2519 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2520 | u8 *mac_addr = NULL; |
b9454e83 | 2521 | struct key_parse key; |
41ade00f | 2522 | |
b9454e83 JB |
2523 | err = nl80211_parse_key(info, &key); |
2524 | if (err) | |
2525 | return err; | |
41ade00f JB |
2526 | |
2527 | if (info->attrs[NL80211_ATTR_MAC]) | |
2528 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2529 | ||
e31b8213 JB |
2530 | if (key.type == -1) { |
2531 | if (mac_addr) | |
2532 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2533 | else | |
2534 | key.type = NL80211_KEYTYPE_GROUP; | |
2535 | } | |
2536 | ||
2537 | /* for now */ | |
2538 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2539 | key.type != NL80211_KEYTYPE_GROUP) | |
2540 | return -EINVAL; | |
2541 | ||
4c476991 JB |
2542 | if (!rdev->ops->del_key) |
2543 | return -EOPNOTSUPP; | |
41ade00f | 2544 | |
fffd0934 JB |
2545 | wdev_lock(dev->ieee80211_ptr); |
2546 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
2547 | |
2548 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
2549 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2550 | err = -ENOENT; | |
2551 | ||
fffd0934 | 2552 | if (!err) |
e35e4d28 HG |
2553 | err = rdev_del_key(rdev, dev, key.idx, |
2554 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2555 | mac_addr); | |
41ade00f | 2556 | |
3d23e349 | 2557 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 2558 | if (!err) { |
b9454e83 | 2559 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 2560 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 2561 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
2562 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
2563 | } | |
2564 | #endif | |
fffd0934 | 2565 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 2566 | |
41ade00f JB |
2567 | return err; |
2568 | } | |
2569 | ||
77765eaf VT |
2570 | /* This function returns an error or the number of nested attributes */ |
2571 | static int validate_acl_mac_addrs(struct nlattr *nl_attr) | |
2572 | { | |
2573 | struct nlattr *attr; | |
2574 | int n_entries = 0, tmp; | |
2575 | ||
2576 | nla_for_each_nested(attr, nl_attr, tmp) { | |
2577 | if (nla_len(attr) != ETH_ALEN) | |
2578 | return -EINVAL; | |
2579 | ||
2580 | n_entries++; | |
2581 | } | |
2582 | ||
2583 | return n_entries; | |
2584 | } | |
2585 | ||
2586 | /* | |
2587 | * This function parses ACL information and allocates memory for ACL data. | |
2588 | * On successful return, the calling function is responsible to free the | |
2589 | * ACL buffer returned by this function. | |
2590 | */ | |
2591 | static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy, | |
2592 | struct genl_info *info) | |
2593 | { | |
2594 | enum nl80211_acl_policy acl_policy; | |
2595 | struct nlattr *attr; | |
2596 | struct cfg80211_acl_data *acl; | |
2597 | int i = 0, n_entries, tmp; | |
2598 | ||
2599 | if (!wiphy->max_acl_mac_addrs) | |
2600 | return ERR_PTR(-EOPNOTSUPP); | |
2601 | ||
2602 | if (!info->attrs[NL80211_ATTR_ACL_POLICY]) | |
2603 | return ERR_PTR(-EINVAL); | |
2604 | ||
2605 | acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]); | |
2606 | if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED && | |
2607 | acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED) | |
2608 | return ERR_PTR(-EINVAL); | |
2609 | ||
2610 | if (!info->attrs[NL80211_ATTR_MAC_ADDRS]) | |
2611 | return ERR_PTR(-EINVAL); | |
2612 | ||
2613 | n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]); | |
2614 | if (n_entries < 0) | |
2615 | return ERR_PTR(n_entries); | |
2616 | ||
2617 | if (n_entries > wiphy->max_acl_mac_addrs) | |
2618 | return ERR_PTR(-ENOTSUPP); | |
2619 | ||
2620 | acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries), | |
2621 | GFP_KERNEL); | |
2622 | if (!acl) | |
2623 | return ERR_PTR(-ENOMEM); | |
2624 | ||
2625 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) { | |
2626 | memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN); | |
2627 | i++; | |
2628 | } | |
2629 | ||
2630 | acl->n_acl_entries = n_entries; | |
2631 | acl->acl_policy = acl_policy; | |
2632 | ||
2633 | return acl; | |
2634 | } | |
2635 | ||
2636 | static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info) | |
2637 | { | |
2638 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2639 | struct net_device *dev = info->user_ptr[1]; | |
2640 | struct cfg80211_acl_data *acl; | |
2641 | int err; | |
2642 | ||
2643 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2644 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2645 | return -EOPNOTSUPP; | |
2646 | ||
2647 | if (!dev->ieee80211_ptr->beacon_interval) | |
2648 | return -EINVAL; | |
2649 | ||
2650 | acl = parse_acl_data(&rdev->wiphy, info); | |
2651 | if (IS_ERR(acl)) | |
2652 | return PTR_ERR(acl); | |
2653 | ||
2654 | err = rdev_set_mac_acl(rdev, dev, acl); | |
2655 | ||
2656 | kfree(acl); | |
2657 | ||
2658 | return err; | |
2659 | } | |
2660 | ||
8860020e JB |
2661 | static int nl80211_parse_beacon(struct genl_info *info, |
2662 | struct cfg80211_beacon_data *bcn) | |
ed1b6cc7 | 2663 | { |
8860020e | 2664 | bool haveinfo = false; |
ed1b6cc7 | 2665 | |
9946ecfb JM |
2666 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) || |
2667 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) || | |
2668 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
2669 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
2670 | return -EINVAL; |
2671 | ||
8860020e | 2672 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 2673 | |
ed1b6cc7 | 2674 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { |
8860020e JB |
2675 | bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); |
2676 | bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
2677 | if (!bcn->head_len) | |
2678 | return -EINVAL; | |
2679 | haveinfo = true; | |
ed1b6cc7 JB |
2680 | } |
2681 | ||
2682 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
8860020e JB |
2683 | bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
2684 | bcn->tail_len = | |
ed1b6cc7 | 2685 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
8860020e | 2686 | haveinfo = true; |
ed1b6cc7 JB |
2687 | } |
2688 | ||
4c476991 JB |
2689 | if (!haveinfo) |
2690 | return -EINVAL; | |
3b85875a | 2691 | |
9946ecfb | 2692 | if (info->attrs[NL80211_ATTR_IE]) { |
8860020e JB |
2693 | bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]); |
2694 | bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
2695 | } |
2696 | ||
2697 | if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) { | |
8860020e | 2698 | bcn->proberesp_ies = |
9946ecfb | 2699 | nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 2700 | bcn->proberesp_ies_len = |
9946ecfb JM |
2701 | nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
2702 | } | |
2703 | ||
2704 | if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) { | |
8860020e | 2705 | bcn->assocresp_ies = |
9946ecfb | 2706 | nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 2707 | bcn->assocresp_ies_len = |
9946ecfb JM |
2708 | nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
2709 | } | |
2710 | ||
00f740e1 | 2711 | if (info->attrs[NL80211_ATTR_PROBE_RESP]) { |
8860020e | 2712 | bcn->probe_resp = |
00f740e1 | 2713 | nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]); |
8860020e | 2714 | bcn->probe_resp_len = |
00f740e1 AN |
2715 | nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]); |
2716 | } | |
2717 | ||
8860020e JB |
2718 | return 0; |
2719 | } | |
2720 | ||
46c1dd0c FF |
2721 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
2722 | struct cfg80211_ap_settings *params) | |
2723 | { | |
2724 | struct wireless_dev *wdev; | |
2725 | bool ret = false; | |
2726 | ||
2727 | mutex_lock(&rdev->devlist_mtx); | |
2728 | ||
89a54e48 | 2729 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
46c1dd0c FF |
2730 | if (wdev->iftype != NL80211_IFTYPE_AP && |
2731 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
2732 | continue; | |
2733 | ||
683b6d3b | 2734 | if (!wdev->preset_chandef.chan) |
46c1dd0c FF |
2735 | continue; |
2736 | ||
683b6d3b | 2737 | params->chandef = wdev->preset_chandef; |
46c1dd0c FF |
2738 | ret = true; |
2739 | break; | |
2740 | } | |
2741 | ||
2742 | mutex_unlock(&rdev->devlist_mtx); | |
2743 | ||
2744 | return ret; | |
2745 | } | |
2746 | ||
e39e5b5e JM |
2747 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
2748 | enum nl80211_auth_type auth_type, | |
2749 | enum nl80211_commands cmd) | |
2750 | { | |
2751 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
2752 | return false; | |
2753 | ||
2754 | switch (cmd) { | |
2755 | case NL80211_CMD_AUTHENTICATE: | |
2756 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
2757 | auth_type == NL80211_AUTHTYPE_SAE) | |
2758 | return false; | |
2759 | return true; | |
2760 | case NL80211_CMD_CONNECT: | |
2761 | case NL80211_CMD_START_AP: | |
2762 | /* SAE not supported yet */ | |
2763 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
2764 | return false; | |
2765 | return true; | |
2766 | default: | |
2767 | return false; | |
2768 | } | |
2769 | } | |
2770 | ||
8860020e JB |
2771 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
2772 | { | |
2773 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2774 | struct net_device *dev = info->user_ptr[1]; | |
2775 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2776 | struct cfg80211_ap_settings params; | |
2777 | int err; | |
2778 | ||
2779 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2780 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2781 | return -EOPNOTSUPP; | |
2782 | ||
2783 | if (!rdev->ops->start_ap) | |
2784 | return -EOPNOTSUPP; | |
2785 | ||
2786 | if (wdev->beacon_interval) | |
2787 | return -EALREADY; | |
2788 | ||
2789 | memset(¶ms, 0, sizeof(params)); | |
2790 | ||
2791 | /* these are required for START_AP */ | |
2792 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
2793 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
2794 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
2795 | return -EINVAL; | |
2796 | ||
2797 | err = nl80211_parse_beacon(info, ¶ms.beacon); | |
2798 | if (err) | |
2799 | return err; | |
2800 | ||
2801 | params.beacon_interval = | |
2802 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
2803 | params.dtim_period = | |
2804 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
2805 | ||
2806 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
2807 | if (err) | |
2808 | return err; | |
2809 | ||
2810 | /* | |
2811 | * In theory, some of these attributes should be required here | |
2812 | * but since they were not used when the command was originally | |
2813 | * added, keep them optional for old user space programs to let | |
2814 | * them continue to work with drivers that do not need the | |
2815 | * additional information -- drivers must check! | |
2816 | */ | |
2817 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2818 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2819 | params.ssid_len = | |
2820 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2821 | if (params.ssid_len == 0 || | |
2822 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
2823 | return -EINVAL; | |
2824 | } | |
2825 | ||
2826 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
2827 | params.hidden_ssid = nla_get_u32( | |
2828 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
2829 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
2830 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
2831 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
2832 | return -EINVAL; | |
2833 | } | |
2834 | ||
2835 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
2836 | ||
2837 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
2838 | params.auth_type = nla_get_u32( | |
2839 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
2840 | if (!nl80211_valid_auth_type(rdev, params.auth_type, |
2841 | NL80211_CMD_START_AP)) | |
8860020e JB |
2842 | return -EINVAL; |
2843 | } else | |
2844 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
2845 | ||
2846 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
2847 | NL80211_MAX_NR_CIPHER_SUITES); | |
2848 | if (err) | |
2849 | return err; | |
2850 | ||
1b658f11 VT |
2851 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
2852 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
2853 | return -EOPNOTSUPP; | |
2854 | params.inactivity_timeout = nla_get_u16( | |
2855 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
2856 | } | |
2857 | ||
53cabad7 JB |
2858 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
2859 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2860 | return -EINVAL; | |
2861 | params.p2p_ctwindow = | |
2862 | nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
2863 | if (params.p2p_ctwindow > 127) | |
2864 | return -EINVAL; | |
2865 | if (params.p2p_ctwindow != 0 && | |
2866 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
2867 | return -EINVAL; | |
2868 | } | |
2869 | ||
2870 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
2871 | u8 tmp; | |
2872 | ||
2873 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2874 | return -EINVAL; | |
2875 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
2876 | if (tmp > 1) | |
2877 | return -EINVAL; | |
2878 | params.p2p_opp_ps = tmp; | |
2879 | if (params.p2p_opp_ps != 0 && | |
2880 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
2881 | return -EINVAL; | |
2882 | } | |
2883 | ||
aa430da4 | 2884 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
2885 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
2886 | if (err) | |
2887 | return err; | |
2888 | } else if (wdev->preset_chandef.chan) { | |
2889 | params.chandef = wdev->preset_chandef; | |
46c1dd0c | 2890 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) |
aa430da4 JB |
2891 | return -EINVAL; |
2892 | ||
683b6d3b | 2893 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef)) |
aa430da4 JB |
2894 | return -EINVAL; |
2895 | ||
e4e32459 | 2896 | mutex_lock(&rdev->devlist_mtx); |
683b6d3b | 2897 | err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan, |
e4e32459 MK |
2898 | CHAN_MODE_SHARED); |
2899 | mutex_unlock(&rdev->devlist_mtx); | |
2900 | ||
2901 | if (err) | |
2902 | return err; | |
2903 | ||
77765eaf VT |
2904 | if (info->attrs[NL80211_ATTR_ACL_POLICY]) { |
2905 | params.acl = parse_acl_data(&rdev->wiphy, info); | |
2906 | if (IS_ERR(params.acl)) | |
2907 | return PTR_ERR(params.acl); | |
2908 | } | |
2909 | ||
e35e4d28 | 2910 | err = rdev_start_ap(rdev, dev, ¶ms); |
46c1dd0c | 2911 | if (!err) { |
683b6d3b | 2912 | wdev->preset_chandef = params.chandef; |
8860020e | 2913 | wdev->beacon_interval = params.beacon_interval; |
683b6d3b | 2914 | wdev->channel = params.chandef.chan; |
06e191e2 AQ |
2915 | wdev->ssid_len = params.ssid_len; |
2916 | memcpy(wdev->ssid, params.ssid, wdev->ssid_len); | |
46c1dd0c | 2917 | } |
77765eaf VT |
2918 | |
2919 | kfree(params.acl); | |
2920 | ||
56d1893d | 2921 | return err; |
ed1b6cc7 JB |
2922 | } |
2923 | ||
8860020e JB |
2924 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
2925 | { | |
2926 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2927 | struct net_device *dev = info->user_ptr[1]; | |
2928 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2929 | struct cfg80211_beacon_data params; | |
2930 | int err; | |
2931 | ||
2932 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2933 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2934 | return -EOPNOTSUPP; | |
2935 | ||
2936 | if (!rdev->ops->change_beacon) | |
2937 | return -EOPNOTSUPP; | |
2938 | ||
2939 | if (!wdev->beacon_interval) | |
2940 | return -EINVAL; | |
2941 | ||
2942 | err = nl80211_parse_beacon(info, ¶ms); | |
2943 | if (err) | |
2944 | return err; | |
2945 | ||
e35e4d28 | 2946 | return rdev_change_beacon(rdev, dev, ¶ms); |
8860020e JB |
2947 | } |
2948 | ||
2949 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 2950 | { |
4c476991 JB |
2951 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2952 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 2953 | |
60771780 | 2954 | return cfg80211_stop_ap(rdev, dev); |
ed1b6cc7 JB |
2955 | } |
2956 | ||
5727ef1b JB |
2957 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
2958 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
2959 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
2960 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 2961 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 2962 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 2963 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
2964 | }; |
2965 | ||
eccb8e8f | 2966 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 2967 | enum nl80211_iftype iftype, |
eccb8e8f | 2968 | struct station_parameters *params) |
5727ef1b JB |
2969 | { |
2970 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 2971 | struct nlattr *nla; |
5727ef1b JB |
2972 | int flag; |
2973 | ||
eccb8e8f JB |
2974 | /* |
2975 | * Try parsing the new attribute first so userspace | |
2976 | * can specify both for older kernels. | |
2977 | */ | |
2978 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
2979 | if (nla) { | |
2980 | struct nl80211_sta_flag_update *sta_flags; | |
2981 | ||
2982 | sta_flags = nla_data(nla); | |
2983 | params->sta_flags_mask = sta_flags->mask; | |
2984 | params->sta_flags_set = sta_flags->set; | |
2985 | if ((params->sta_flags_mask | | |
2986 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
2987 | return -EINVAL; | |
2988 | return 0; | |
2989 | } | |
2990 | ||
2991 | /* if present, parse the old attribute */ | |
5727ef1b | 2992 | |
eccb8e8f | 2993 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
2994 | if (!nla) |
2995 | return 0; | |
2996 | ||
2997 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
2998 | nla, sta_flags_policy)) | |
2999 | return -EINVAL; | |
3000 | ||
bdd3ae3d JB |
3001 | /* |
3002 | * Only allow certain flags for interface types so that | |
3003 | * other attributes are silently ignored. Remember that | |
3004 | * this is backward compatibility code with old userspace | |
3005 | * and shouldn't be hit in other cases anyway. | |
3006 | */ | |
3007 | switch (iftype) { | |
3008 | case NL80211_IFTYPE_AP: | |
3009 | case NL80211_IFTYPE_AP_VLAN: | |
3010 | case NL80211_IFTYPE_P2P_GO: | |
3011 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3012 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3013 | BIT(NL80211_STA_FLAG_WME) | | |
3014 | BIT(NL80211_STA_FLAG_MFP); | |
3015 | break; | |
3016 | case NL80211_IFTYPE_P2P_CLIENT: | |
3017 | case NL80211_IFTYPE_STATION: | |
3018 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3019 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3020 | break; | |
3021 | case NL80211_IFTYPE_MESH_POINT: | |
3022 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3023 | BIT(NL80211_STA_FLAG_MFP) | | |
3024 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
3025 | default: | |
3026 | return -EINVAL; | |
3027 | } | |
5727ef1b | 3028 | |
3383b5a6 JB |
3029 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
3030 | if (flags[flag]) { | |
eccb8e8f | 3031 | params->sta_flags_set |= (1<<flag); |
5727ef1b | 3032 | |
3383b5a6 JB |
3033 | /* no longer support new API additions in old API */ |
3034 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
3035 | return -EINVAL; | |
3036 | } | |
3037 | } | |
3038 | ||
5727ef1b JB |
3039 | return 0; |
3040 | } | |
3041 | ||
c8dcfd8a FF |
3042 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
3043 | int attr) | |
3044 | { | |
3045 | struct nlattr *rate; | |
8eb41c8d VK |
3046 | u32 bitrate; |
3047 | u16 bitrate_compat; | |
c8dcfd8a FF |
3048 | |
3049 | rate = nla_nest_start(msg, attr); | |
3050 | if (!rate) | |
db9c64cf | 3051 | return false; |
c8dcfd8a FF |
3052 | |
3053 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
3054 | bitrate = cfg80211_calculate_bitrate(info); | |
8eb41c8d VK |
3055 | /* report 16-bit bitrate only if we can */ |
3056 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
db9c64cf JB |
3057 | if (bitrate > 0 && |
3058 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) | |
3059 | return false; | |
3060 | if (bitrate_compat > 0 && | |
3061 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) | |
3062 | return false; | |
3063 | ||
3064 | if (info->flags & RATE_INFO_FLAGS_MCS) { | |
3065 | if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) | |
3066 | return false; | |
3067 | if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH && | |
3068 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) | |
3069 | return false; | |
3070 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && | |
3071 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3072 | return false; | |
3073 | } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) { | |
3074 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs)) | |
3075 | return false; | |
3076 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss)) | |
3077 | return false; | |
3078 | if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH && | |
3079 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) | |
3080 | return false; | |
3081 | if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH && | |
3082 | nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH)) | |
3083 | return false; | |
3084 | if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH && | |
3085 | nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH)) | |
3086 | return false; | |
3087 | if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH && | |
3088 | nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH)) | |
3089 | return false; | |
3090 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && | |
3091 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3092 | return false; | |
3093 | } | |
c8dcfd8a FF |
3094 | |
3095 | nla_nest_end(msg, rate); | |
3096 | return true; | |
c8dcfd8a FF |
3097 | } |
3098 | ||
15e47304 | 3099 | static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq, |
66266b3a JL |
3100 | int flags, |
3101 | struct cfg80211_registered_device *rdev, | |
3102 | struct net_device *dev, | |
98b62183 | 3103 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
3104 | { |
3105 | void *hdr; | |
f4263c98 | 3106 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc | 3107 | |
15e47304 | 3108 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
fd5b74dc JB |
3109 | if (!hdr) |
3110 | return -1; | |
3111 | ||
9360ffd1 DM |
3112 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3113 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
3114 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
3115 | goto nla_put_failure; | |
f5ea9120 | 3116 | |
2ec600d6 LCC |
3117 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
3118 | if (!sinfoattr) | |
fd5b74dc | 3119 | goto nla_put_failure; |
9360ffd1 DM |
3120 | if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) && |
3121 | nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME, | |
3122 | sinfo->connected_time)) | |
3123 | goto nla_put_failure; | |
3124 | if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) && | |
3125 | nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
3126 | sinfo->inactive_time)) | |
3127 | goto nla_put_failure; | |
42745e03 VK |
3128 | if ((sinfo->filled & (STATION_INFO_RX_BYTES | |
3129 | STATION_INFO_RX_BYTES64)) && | |
9360ffd1 | 3130 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, |
42745e03 | 3131 | (u32)sinfo->rx_bytes)) |
9360ffd1 | 3132 | goto nla_put_failure; |
42745e03 VK |
3133 | if ((sinfo->filled & (STATION_INFO_TX_BYTES | |
3134 | NL80211_STA_INFO_TX_BYTES64)) && | |
9360ffd1 | 3135 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, |
42745e03 VK |
3136 | (u32)sinfo->tx_bytes)) |
3137 | goto nla_put_failure; | |
3138 | if ((sinfo->filled & STATION_INFO_RX_BYTES64) && | |
3139 | nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64, | |
3140 | sinfo->rx_bytes)) | |
3141 | goto nla_put_failure; | |
3142 | if ((sinfo->filled & STATION_INFO_TX_BYTES64) && | |
3143 | nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64, | |
9360ffd1 DM |
3144 | sinfo->tx_bytes)) |
3145 | goto nla_put_failure; | |
3146 | if ((sinfo->filled & STATION_INFO_LLID) && | |
3147 | nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid)) | |
3148 | goto nla_put_failure; | |
3149 | if ((sinfo->filled & STATION_INFO_PLID) && | |
3150 | nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid)) | |
3151 | goto nla_put_failure; | |
3152 | if ((sinfo->filled & STATION_INFO_PLINK_STATE) && | |
3153 | nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE, | |
3154 | sinfo->plink_state)) | |
3155 | goto nla_put_failure; | |
66266b3a JL |
3156 | switch (rdev->wiphy.signal_type) { |
3157 | case CFG80211_SIGNAL_TYPE_MBM: | |
9360ffd1 DM |
3158 | if ((sinfo->filled & STATION_INFO_SIGNAL) && |
3159 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL, | |
3160 | sinfo->signal)) | |
3161 | goto nla_put_failure; | |
3162 | if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) && | |
3163 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
3164 | sinfo->signal_avg)) | |
3165 | goto nla_put_failure; | |
66266b3a JL |
3166 | break; |
3167 | default: | |
3168 | break; | |
3169 | } | |
420e7fab | 3170 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
c8dcfd8a FF |
3171 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
3172 | NL80211_STA_INFO_TX_BITRATE)) | |
3173 | goto nla_put_failure; | |
3174 | } | |
3175 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { | |
3176 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
3177 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 3178 | goto nla_put_failure; |
420e7fab | 3179 | } |
9360ffd1 DM |
3180 | if ((sinfo->filled & STATION_INFO_RX_PACKETS) && |
3181 | nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS, | |
3182 | sinfo->rx_packets)) | |
3183 | goto nla_put_failure; | |
3184 | if ((sinfo->filled & STATION_INFO_TX_PACKETS) && | |
3185 | nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS, | |
3186 | sinfo->tx_packets)) | |
3187 | goto nla_put_failure; | |
3188 | if ((sinfo->filled & STATION_INFO_TX_RETRIES) && | |
3189 | nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES, | |
3190 | sinfo->tx_retries)) | |
3191 | goto nla_put_failure; | |
3192 | if ((sinfo->filled & STATION_INFO_TX_FAILED) && | |
3193 | nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, | |
3194 | sinfo->tx_failed)) | |
3195 | goto nla_put_failure; | |
3196 | if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && | |
3197 | nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, | |
3198 | sinfo->beacon_loss_count)) | |
3199 | goto nla_put_failure; | |
3b1c5a53 MP |
3200 | if ((sinfo->filled & STATION_INFO_LOCAL_PM) && |
3201 | nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM, | |
3202 | sinfo->local_pm)) | |
3203 | goto nla_put_failure; | |
3204 | if ((sinfo->filled & STATION_INFO_PEER_PM) && | |
3205 | nla_put_u32(msg, NL80211_STA_INFO_PEER_PM, | |
3206 | sinfo->peer_pm)) | |
3207 | goto nla_put_failure; | |
3208 | if ((sinfo->filled & STATION_INFO_NONPEER_PM) && | |
3209 | nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM, | |
3210 | sinfo->nonpeer_pm)) | |
3211 | goto nla_put_failure; | |
f4263c98 PS |
3212 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { |
3213 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
3214 | if (!bss_param) | |
3215 | goto nla_put_failure; | |
3216 | ||
9360ffd1 DM |
3217 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
3218 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
3219 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
3220 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
3221 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
3222 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
3223 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
3224 | sinfo->bss_param.dtim_period) || | |
3225 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
3226 | sinfo->bss_param.beacon_interval)) | |
3227 | goto nla_put_failure; | |
f4263c98 PS |
3228 | |
3229 | nla_nest_end(msg, bss_param); | |
3230 | } | |
9360ffd1 DM |
3231 | if ((sinfo->filled & STATION_INFO_STA_FLAGS) && |
3232 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, | |
3233 | sizeof(struct nl80211_sta_flag_update), | |
3234 | &sinfo->sta_flags)) | |
3235 | goto nla_put_failure; | |
7eab0f64 JL |
3236 | if ((sinfo->filled & STATION_INFO_T_OFFSET) && |
3237 | nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET, | |
3238 | sinfo->t_offset)) | |
3239 | goto nla_put_failure; | |
2ec600d6 | 3240 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 3241 | |
9360ffd1 DM |
3242 | if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) && |
3243 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, | |
3244 | sinfo->assoc_req_ies)) | |
3245 | goto nla_put_failure; | |
50d3dfb7 | 3246 | |
fd5b74dc JB |
3247 | return genlmsg_end(msg, hdr); |
3248 | ||
3249 | nla_put_failure: | |
bc3ed28c TG |
3250 | genlmsg_cancel(msg, hdr); |
3251 | return -EMSGSIZE; | |
fd5b74dc JB |
3252 | } |
3253 | ||
2ec600d6 | 3254 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 3255 | struct netlink_callback *cb) |
2ec600d6 | 3256 | { |
2ec600d6 LCC |
3257 | struct station_info sinfo; |
3258 | struct cfg80211_registered_device *dev; | |
bba95fef | 3259 | struct net_device *netdev; |
2ec600d6 | 3260 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 3261 | int sta_idx = cb->args[1]; |
2ec600d6 | 3262 | int err; |
2ec600d6 | 3263 | |
67748893 JB |
3264 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3265 | if (err) | |
3266 | return err; | |
bba95fef JB |
3267 | |
3268 | if (!dev->ops->dump_station) { | |
eec60b03 | 3269 | err = -EOPNOTSUPP; |
bba95fef JB |
3270 | goto out_err; |
3271 | } | |
3272 | ||
bba95fef | 3273 | while (1) { |
f612cedf | 3274 | memset(&sinfo, 0, sizeof(sinfo)); |
e35e4d28 HG |
3275 | err = rdev_dump_station(dev, netdev, sta_idx, |
3276 | mac_addr, &sinfo); | |
bba95fef JB |
3277 | if (err == -ENOENT) |
3278 | break; | |
3279 | if (err) | |
3b85875a | 3280 | goto out_err; |
bba95fef JB |
3281 | |
3282 | if (nl80211_send_station(skb, | |
15e47304 | 3283 | NETLINK_CB(cb->skb).portid, |
bba95fef | 3284 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
66266b3a | 3285 | dev, netdev, mac_addr, |
bba95fef JB |
3286 | &sinfo) < 0) |
3287 | goto out; | |
3288 | ||
3289 | sta_idx++; | |
3290 | } | |
3291 | ||
3292 | ||
3293 | out: | |
3294 | cb->args[1] = sta_idx; | |
3295 | err = skb->len; | |
bba95fef | 3296 | out_err: |
67748893 | 3297 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
3298 | |
3299 | return err; | |
2ec600d6 | 3300 | } |
fd5b74dc | 3301 | |
5727ef1b JB |
3302 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
3303 | { | |
4c476991 JB |
3304 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3305 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 3306 | struct station_info sinfo; |
fd5b74dc JB |
3307 | struct sk_buff *msg; |
3308 | u8 *mac_addr = NULL; | |
4c476991 | 3309 | int err; |
fd5b74dc | 3310 | |
2ec600d6 | 3311 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
3312 | |
3313 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3314 | return -EINVAL; | |
3315 | ||
3316 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3317 | ||
4c476991 JB |
3318 | if (!rdev->ops->get_station) |
3319 | return -EOPNOTSUPP; | |
3b85875a | 3320 | |
e35e4d28 | 3321 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
fd5b74dc | 3322 | if (err) |
4c476991 | 3323 | return err; |
2ec600d6 | 3324 | |
fd2120ca | 3325 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 3326 | if (!msg) |
4c476991 | 3327 | return -ENOMEM; |
fd5b74dc | 3328 | |
15e47304 | 3329 | if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0, |
66266b3a | 3330 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
3331 | nlmsg_free(msg); |
3332 | return -ENOBUFS; | |
3333 | } | |
3b85875a | 3334 | |
4c476991 | 3335 | return genlmsg_reply(msg, info); |
5727ef1b JB |
3336 | } |
3337 | ||
3338 | /* | |
c258d2de | 3339 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 3340 | */ |
80b99899 JB |
3341 | static struct net_device *get_vlan(struct genl_info *info, |
3342 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 3343 | { |
463d0183 | 3344 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
3345 | struct net_device *v; |
3346 | int ret; | |
3347 | ||
3348 | if (!vlanattr) | |
3349 | return NULL; | |
3350 | ||
3351 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
3352 | if (!v) | |
3353 | return ERR_PTR(-ENODEV); | |
3354 | ||
3355 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
3356 | ret = -EINVAL; | |
3357 | goto error; | |
5727ef1b | 3358 | } |
80b99899 JB |
3359 | |
3360 | if (!netif_running(v)) { | |
3361 | ret = -ENETDOWN; | |
3362 | goto error; | |
3363 | } | |
3364 | ||
3365 | return v; | |
3366 | error: | |
3367 | dev_put(v); | |
3368 | return ERR_PTR(ret); | |
5727ef1b JB |
3369 | } |
3370 | ||
3371 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
3372 | { | |
4c476991 | 3373 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 3374 | int err; |
4c476991 | 3375 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
3376 | struct station_parameters params; |
3377 | u8 *mac_addr = NULL; | |
3378 | ||
3379 | memset(¶ms, 0, sizeof(params)); | |
3380 | ||
3381 | params.listen_interval = -1; | |
57cf8043 | 3382 | params.plink_state = -1; |
5727ef1b JB |
3383 | |
3384 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
3385 | return -EINVAL; | |
3386 | ||
3387 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3388 | return -EINVAL; | |
3389 | ||
3390 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3391 | ||
3392 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
3393 | params.supported_rates = | |
3394 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3395 | params.supported_rates_len = | |
3396 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3397 | } | |
3398 | ||
ba23d206 JB |
3399 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL] || |
3400 | info->attrs[NL80211_ATTR_HT_CAPABILITY]) | |
3401 | return -EINVAL; | |
36aedc90 | 3402 | |
bdd90d5e JB |
3403 | if (!rdev->ops->change_station) |
3404 | return -EOPNOTSUPP; | |
3405 | ||
bdd3ae3d | 3406 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
3407 | return -EINVAL; |
3408 | ||
2ec600d6 LCC |
3409 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
3410 | params.plink_action = | |
3411 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3412 | ||
9c3990aa JC |
3413 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) |
3414 | params.plink_state = | |
3415 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); | |
3416 | ||
3b1c5a53 MP |
3417 | if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) { |
3418 | enum nl80211_mesh_power_mode pm = nla_get_u32( | |
3419 | info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]); | |
3420 | ||
3421 | if (pm <= NL80211_MESH_POWER_UNKNOWN || | |
3422 | pm > NL80211_MESH_POWER_MAX) | |
3423 | return -EINVAL; | |
3424 | ||
3425 | params.local_pm = pm; | |
3426 | } | |
3427 | ||
a97f4424 JB |
3428 | switch (dev->ieee80211_ptr->iftype) { |
3429 | case NL80211_IFTYPE_AP: | |
3430 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 3431 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
3432 | /* disallow mesh-specific things */ |
3433 | if (params.plink_action) | |
bdd90d5e | 3434 | return -EINVAL; |
3b1c5a53 MP |
3435 | if (params.local_pm) |
3436 | return -EINVAL; | |
bdd90d5e JB |
3437 | |
3438 | /* TDLS can't be set, ... */ | |
3439 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3440 | return -EINVAL; | |
3441 | /* | |
3442 | * ... but don't bother the driver with it. This works around | |
3443 | * a hostapd/wpa_supplicant issue -- it always includes the | |
3444 | * TLDS_PEER flag in the mask even for AP mode. | |
3445 | */ | |
3446 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3447 | ||
3448 | /* accept only the listed bits */ | |
3449 | if (params.sta_flags_mask & | |
3450 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
d582cffb JB |
3451 | BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
3452 | BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
bdd90d5e JB |
3453 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | |
3454 | BIT(NL80211_STA_FLAG_WME) | | |
3455 | BIT(NL80211_STA_FLAG_MFP))) | |
3456 | return -EINVAL; | |
3457 | ||
d582cffb JB |
3458 | /* but authenticated/associated only if driver handles it */ |
3459 | if (!(rdev->wiphy.features & | |
3460 | NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
3461 | params.sta_flags_mask & | |
3462 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3463 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
3464 | return -EINVAL; | |
3465 | ||
ba23d206 JB |
3466 | /* reject other things that can't change */ |
3467 | if (params.supported_rates) | |
3468 | return -EINVAL; | |
3469 | ||
bdd90d5e JB |
3470 | /* must be last in here for error handling */ |
3471 | params.vlan = get_vlan(info, rdev); | |
3472 | if (IS_ERR(params.vlan)) | |
3473 | return PTR_ERR(params.vlan); | |
a97f4424 | 3474 | break; |
074ac8df | 3475 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 3476 | case NL80211_IFTYPE_STATION: |
bdd90d5e JB |
3477 | /* |
3478 | * Don't allow userspace to change the TDLS_PEER flag, | |
3479 | * but silently ignore attempts to change it since we | |
3480 | * don't have state here to verify that it doesn't try | |
3481 | * to change the flag. | |
3482 | */ | |
3483 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
267335d6 AQ |
3484 | /* fall through */ |
3485 | case NL80211_IFTYPE_ADHOC: | |
3486 | /* disallow things sta doesn't support */ | |
3487 | if (params.plink_action) | |
3488 | return -EINVAL; | |
3b1c5a53 MP |
3489 | if (params.local_pm) |
3490 | return -EINVAL; | |
bdd90d5e JB |
3491 | /* reject any changes other than AUTHORIZED */ |
3492 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
3493 | return -EINVAL; | |
a97f4424 JB |
3494 | break; |
3495 | case NL80211_IFTYPE_MESH_POINT: | |
3496 | /* disallow things mesh doesn't support */ | |
3497 | if (params.vlan) | |
bdd90d5e | 3498 | return -EINVAL; |
ba23d206 | 3499 | if (params.supported_rates) |
bdd90d5e JB |
3500 | return -EINVAL; |
3501 | /* | |
3502 | * No special handling for TDLS here -- the userspace | |
3503 | * mesh code doesn't have this bug. | |
3504 | */ | |
b39c48fa JC |
3505 | if (params.sta_flags_mask & |
3506 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
8429828e | 3507 | BIT(NL80211_STA_FLAG_MFP) | |
b39c48fa | 3508 | BIT(NL80211_STA_FLAG_AUTHORIZED))) |
bdd90d5e | 3509 | return -EINVAL; |
a97f4424 JB |
3510 | break; |
3511 | default: | |
bdd90d5e | 3512 | return -EOPNOTSUPP; |
034d655e JB |
3513 | } |
3514 | ||
bdd90d5e | 3515 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 3516 | |
e35e4d28 | 3517 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 3518 | |
5727ef1b JB |
3519 | if (params.vlan) |
3520 | dev_put(params.vlan); | |
3b85875a | 3521 | |
5727ef1b JB |
3522 | return err; |
3523 | } | |
3524 | ||
c75786c9 EP |
3525 | static struct nla_policy |
3526 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { | |
3527 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, | |
3528 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
3529 | }; | |
3530 | ||
5727ef1b JB |
3531 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
3532 | { | |
4c476991 | 3533 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 3534 | int err; |
4c476991 | 3535 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
3536 | struct station_parameters params; |
3537 | u8 *mac_addr = NULL; | |
3538 | ||
3539 | memset(¶ms, 0, sizeof(params)); | |
3540 | ||
3541 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3542 | return -EINVAL; | |
3543 | ||
5727ef1b JB |
3544 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
3545 | return -EINVAL; | |
3546 | ||
3547 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
3548 | return -EINVAL; | |
3549 | ||
0e956c13 TLSC |
3550 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
3551 | return -EINVAL; | |
3552 | ||
5727ef1b JB |
3553 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
3554 | params.supported_rates = | |
3555 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3556 | params.supported_rates_len = | |
3557 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3558 | params.listen_interval = | |
3559 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 3560 | |
0e956c13 TLSC |
3561 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
3562 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
3563 | return -EINVAL; | |
51b50fbe | 3564 | |
36aedc90 JM |
3565 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
3566 | params.ht_capa = | |
3567 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 3568 | |
f461be3e MP |
3569 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
3570 | params.vht_capa = | |
3571 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
3572 | ||
96b78dff JC |
3573 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
3574 | params.plink_action = | |
3575 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3576 | ||
bdd90d5e JB |
3577 | if (!rdev->ops->add_station) |
3578 | return -EOPNOTSUPP; | |
3579 | ||
bdd3ae3d | 3580 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
3581 | return -EINVAL; |
3582 | ||
bdd90d5e JB |
3583 | switch (dev->ieee80211_ptr->iftype) { |
3584 | case NL80211_IFTYPE_AP: | |
3585 | case NL80211_IFTYPE_AP_VLAN: | |
3586 | case NL80211_IFTYPE_P2P_GO: | |
3587 | /* parse WME attributes if sta is WME capable */ | |
3588 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
3589 | (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) && | |
3590 | info->attrs[NL80211_ATTR_STA_WME]) { | |
3591 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; | |
3592 | struct nlattr *nla; | |
3593 | ||
3594 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
3595 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
3596 | nl80211_sta_wme_policy); | |
3597 | if (err) | |
3598 | return err; | |
3599 | ||
3600 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
3601 | params.uapsd_queues = | |
3602 | nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
3603 | if (params.uapsd_queues & | |
3604 | ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
3605 | return -EINVAL; | |
c75786c9 | 3606 | |
bdd90d5e JB |
3607 | if (tb[NL80211_STA_WME_MAX_SP]) |
3608 | params.max_sp = | |
3609 | nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
c75786c9 | 3610 | |
bdd90d5e JB |
3611 | if (params.max_sp & |
3612 | ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
3613 | return -EINVAL; | |
4319e193 | 3614 | |
bdd90d5e JB |
3615 | params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; |
3616 | } | |
3617 | /* TDLS peers cannot be added */ | |
3618 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
4319e193 | 3619 | return -EINVAL; |
bdd90d5e JB |
3620 | /* but don't bother the driver with it */ |
3621 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 3622 | |
d582cffb JB |
3623 | /* allow authenticated/associated only if driver handles it */ |
3624 | if (!(rdev->wiphy.features & | |
3625 | NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
3626 | params.sta_flags_mask & | |
3627 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3628 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
3629 | return -EINVAL; | |
3630 | ||
bdd90d5e JB |
3631 | /* must be last in here for error handling */ |
3632 | params.vlan = get_vlan(info, rdev); | |
3633 | if (IS_ERR(params.vlan)) | |
3634 | return PTR_ERR(params.vlan); | |
3635 | break; | |
3636 | case NL80211_IFTYPE_MESH_POINT: | |
d582cffb JB |
3637 | /* associated is disallowed */ |
3638 | if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) | |
3639 | return -EINVAL; | |
bdd90d5e JB |
3640 | /* TDLS peers cannot be added */ |
3641 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3642 | return -EINVAL; | |
3643 | break; | |
3644 | case NL80211_IFTYPE_STATION: | |
d582cffb JB |
3645 | /* associated is disallowed */ |
3646 | if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) | |
3647 | return -EINVAL; | |
bdd90d5e JB |
3648 | /* Only TDLS peers can be added */ |
3649 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3650 | return -EINVAL; | |
3651 | /* Can only add if TDLS ... */ | |
3652 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
3653 | return -EOPNOTSUPP; | |
3654 | /* ... with external setup is supported */ | |
3655 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
3656 | return -EOPNOTSUPP; | |
3657 | break; | |
3658 | default: | |
3659 | return -EOPNOTSUPP; | |
c75786c9 EP |
3660 | } |
3661 | ||
bdd90d5e | 3662 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 3663 | |
e35e4d28 | 3664 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 3665 | |
5727ef1b JB |
3666 | if (params.vlan) |
3667 | dev_put(params.vlan); | |
5727ef1b JB |
3668 | return err; |
3669 | } | |
3670 | ||
3671 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
3672 | { | |
4c476991 JB |
3673 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3674 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
3675 | u8 *mac_addr = NULL; |
3676 | ||
3677 | if (info->attrs[NL80211_ATTR_MAC]) | |
3678 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3679 | ||
e80cf853 | 3680 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 3681 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 3682 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
3683 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3684 | return -EINVAL; | |
5727ef1b | 3685 | |
4c476991 JB |
3686 | if (!rdev->ops->del_station) |
3687 | return -EOPNOTSUPP; | |
3b85875a | 3688 | |
e35e4d28 | 3689 | return rdev_del_station(rdev, dev, mac_addr); |
5727ef1b JB |
3690 | } |
3691 | ||
15e47304 | 3692 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
2ec600d6 LCC |
3693 | int flags, struct net_device *dev, |
3694 | u8 *dst, u8 *next_hop, | |
3695 | struct mpath_info *pinfo) | |
3696 | { | |
3697 | void *hdr; | |
3698 | struct nlattr *pinfoattr; | |
3699 | ||
15e47304 | 3700 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
2ec600d6 LCC |
3701 | if (!hdr) |
3702 | return -1; | |
3703 | ||
9360ffd1 DM |
3704 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3705 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
3706 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
3707 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
3708 | goto nla_put_failure; | |
f5ea9120 | 3709 | |
2ec600d6 LCC |
3710 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
3711 | if (!pinfoattr) | |
3712 | goto nla_put_failure; | |
9360ffd1 DM |
3713 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
3714 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
3715 | pinfo->frame_qlen)) | |
3716 | goto nla_put_failure; | |
3717 | if (((pinfo->filled & MPATH_INFO_SN) && | |
3718 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
3719 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
3720 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
3721 | pinfo->metric)) || | |
3722 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
3723 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
3724 | pinfo->exptime)) || | |
3725 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
3726 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
3727 | pinfo->flags)) || | |
3728 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
3729 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
3730 | pinfo->discovery_timeout)) || | |
3731 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
3732 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
3733 | pinfo->discovery_retries))) | |
3734 | goto nla_put_failure; | |
2ec600d6 LCC |
3735 | |
3736 | nla_nest_end(msg, pinfoattr); | |
3737 | ||
3738 | return genlmsg_end(msg, hdr); | |
3739 | ||
3740 | nla_put_failure: | |
bc3ed28c TG |
3741 | genlmsg_cancel(msg, hdr); |
3742 | return -EMSGSIZE; | |
2ec600d6 LCC |
3743 | } |
3744 | ||
3745 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 3746 | struct netlink_callback *cb) |
2ec600d6 | 3747 | { |
2ec600d6 LCC |
3748 | struct mpath_info pinfo; |
3749 | struct cfg80211_registered_device *dev; | |
bba95fef | 3750 | struct net_device *netdev; |
2ec600d6 LCC |
3751 | u8 dst[ETH_ALEN]; |
3752 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 3753 | int path_idx = cb->args[1]; |
2ec600d6 | 3754 | int err; |
2ec600d6 | 3755 | |
67748893 JB |
3756 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3757 | if (err) | |
3758 | return err; | |
bba95fef JB |
3759 | |
3760 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 3761 | err = -EOPNOTSUPP; |
bba95fef JB |
3762 | goto out_err; |
3763 | } | |
3764 | ||
eec60b03 JM |
3765 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
3766 | err = -EOPNOTSUPP; | |
0448b5fc | 3767 | goto out_err; |
eec60b03 JM |
3768 | } |
3769 | ||
bba95fef | 3770 | while (1) { |
e35e4d28 HG |
3771 | err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop, |
3772 | &pinfo); | |
bba95fef | 3773 | if (err == -ENOENT) |
2ec600d6 | 3774 | break; |
bba95fef | 3775 | if (err) |
3b85875a | 3776 | goto out_err; |
2ec600d6 | 3777 | |
15e47304 | 3778 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
bba95fef JB |
3779 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
3780 | netdev, dst, next_hop, | |
3781 | &pinfo) < 0) | |
3782 | goto out; | |
2ec600d6 | 3783 | |
bba95fef | 3784 | path_idx++; |
2ec600d6 | 3785 | } |
2ec600d6 | 3786 | |
2ec600d6 | 3787 | |
bba95fef JB |
3788 | out: |
3789 | cb->args[1] = path_idx; | |
3790 | err = skb->len; | |
bba95fef | 3791 | out_err: |
67748893 | 3792 | nl80211_finish_netdev_dump(dev); |
bba95fef | 3793 | return err; |
2ec600d6 LCC |
3794 | } |
3795 | ||
3796 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
3797 | { | |
4c476991 | 3798 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 3799 | int err; |
4c476991 | 3800 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
3801 | struct mpath_info pinfo; |
3802 | struct sk_buff *msg; | |
3803 | u8 *dst = NULL; | |
3804 | u8 next_hop[ETH_ALEN]; | |
3805 | ||
3806 | memset(&pinfo, 0, sizeof(pinfo)); | |
3807 | ||
3808 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3809 | return -EINVAL; | |
3810 | ||
3811 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3812 | ||
4c476991 JB |
3813 | if (!rdev->ops->get_mpath) |
3814 | return -EOPNOTSUPP; | |
2ec600d6 | 3815 | |
4c476991 JB |
3816 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3817 | return -EOPNOTSUPP; | |
eec60b03 | 3818 | |
e35e4d28 | 3819 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); |
2ec600d6 | 3820 | if (err) |
4c476991 | 3821 | return err; |
2ec600d6 | 3822 | |
fd2120ca | 3823 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 3824 | if (!msg) |
4c476991 | 3825 | return -ENOMEM; |
2ec600d6 | 3826 | |
15e47304 | 3827 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
4c476991 JB |
3828 | dev, dst, next_hop, &pinfo) < 0) { |
3829 | nlmsg_free(msg); | |
3830 | return -ENOBUFS; | |
3831 | } | |
3b85875a | 3832 | |
4c476991 | 3833 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
3834 | } |
3835 | ||
3836 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
3837 | { | |
4c476991 JB |
3838 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3839 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3840 | u8 *dst = NULL; |
3841 | u8 *next_hop = NULL; | |
3842 | ||
3843 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3844 | return -EINVAL; | |
3845 | ||
3846 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3847 | return -EINVAL; | |
3848 | ||
3849 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3850 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3851 | ||
4c476991 JB |
3852 | if (!rdev->ops->change_mpath) |
3853 | return -EOPNOTSUPP; | |
35a8efe1 | 3854 | |
4c476991 JB |
3855 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3856 | return -EOPNOTSUPP; | |
2ec600d6 | 3857 | |
e35e4d28 | 3858 | return rdev_change_mpath(rdev, dev, dst, next_hop); |
2ec600d6 | 3859 | } |
4c476991 | 3860 | |
2ec600d6 LCC |
3861 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
3862 | { | |
4c476991 JB |
3863 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3864 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3865 | u8 *dst = NULL; |
3866 | u8 *next_hop = NULL; | |
3867 | ||
3868 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3869 | return -EINVAL; | |
3870 | ||
3871 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3872 | return -EINVAL; | |
3873 | ||
3874 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3875 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3876 | ||
4c476991 JB |
3877 | if (!rdev->ops->add_mpath) |
3878 | return -EOPNOTSUPP; | |
35a8efe1 | 3879 | |
4c476991 JB |
3880 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3881 | return -EOPNOTSUPP; | |
2ec600d6 | 3882 | |
e35e4d28 | 3883 | return rdev_add_mpath(rdev, dev, dst, next_hop); |
2ec600d6 LCC |
3884 | } |
3885 | ||
3886 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
3887 | { | |
4c476991 JB |
3888 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3889 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3890 | u8 *dst = NULL; |
3891 | ||
3892 | if (info->attrs[NL80211_ATTR_MAC]) | |
3893 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3894 | ||
4c476991 JB |
3895 | if (!rdev->ops->del_mpath) |
3896 | return -EOPNOTSUPP; | |
3b85875a | 3897 | |
e35e4d28 | 3898 | return rdev_del_mpath(rdev, dev, dst); |
2ec600d6 LCC |
3899 | } |
3900 | ||
9f1ba906 JM |
3901 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
3902 | { | |
4c476991 JB |
3903 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3904 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
3905 | struct bss_parameters params; |
3906 | ||
3907 | memset(¶ms, 0, sizeof(params)); | |
3908 | /* default to not changing parameters */ | |
3909 | params.use_cts_prot = -1; | |
3910 | params.use_short_preamble = -1; | |
3911 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 3912 | params.ap_isolate = -1; |
50b12f59 | 3913 | params.ht_opmode = -1; |
53cabad7 JB |
3914 | params.p2p_ctwindow = -1; |
3915 | params.p2p_opp_ps = -1; | |
9f1ba906 JM |
3916 | |
3917 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
3918 | params.use_cts_prot = | |
3919 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
3920 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
3921 | params.use_short_preamble = | |
3922 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
3923 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
3924 | params.use_short_slot_time = | |
3925 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
3926 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3927 | params.basic_rates = | |
3928 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3929 | params.basic_rates_len = | |
3930 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3931 | } | |
fd8aaaf3 FF |
3932 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
3933 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
3934 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
3935 | params.ht_opmode = | |
3936 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 3937 | |
53cabad7 JB |
3938 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
3939 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3940 | return -EINVAL; | |
3941 | params.p2p_ctwindow = | |
3942 | nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
3943 | if (params.p2p_ctwindow < 0) | |
3944 | return -EINVAL; | |
3945 | if (params.p2p_ctwindow != 0 && | |
3946 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
3947 | return -EINVAL; | |
3948 | } | |
3949 | ||
3950 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
3951 | u8 tmp; | |
3952 | ||
3953 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3954 | return -EINVAL; | |
3955 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
3956 | if (tmp > 1) | |
3957 | return -EINVAL; | |
3958 | params.p2p_opp_ps = tmp; | |
3959 | if (params.p2p_opp_ps && | |
3960 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
3961 | return -EINVAL; | |
3962 | } | |
3963 | ||
4c476991 JB |
3964 | if (!rdev->ops->change_bss) |
3965 | return -EOPNOTSUPP; | |
9f1ba906 | 3966 | |
074ac8df | 3967 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
3968 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3969 | return -EOPNOTSUPP; | |
3b85875a | 3970 | |
e35e4d28 | 3971 | return rdev_change_bss(rdev, dev, ¶ms); |
9f1ba906 JM |
3972 | } |
3973 | ||
b54452b0 | 3974 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
3975 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
3976 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
3977 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
3978 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
3979 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
3980 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
3981 | }; | |
3982 | ||
3983 | static int parse_reg_rule(struct nlattr *tb[], | |
3984 | struct ieee80211_reg_rule *reg_rule) | |
3985 | { | |
3986 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
3987 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
3988 | ||
3989 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
3990 | return -EINVAL; | |
3991 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
3992 | return -EINVAL; | |
3993 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
3994 | return -EINVAL; | |
3995 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
3996 | return -EINVAL; | |
3997 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
3998 | return -EINVAL; | |
3999 | ||
4000 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
4001 | ||
4002 | freq_range->start_freq_khz = | |
4003 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
4004 | freq_range->end_freq_khz = | |
4005 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
4006 | freq_range->max_bandwidth_khz = | |
4007 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
4008 | ||
4009 | power_rule->max_eirp = | |
4010 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
4011 | ||
4012 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
4013 | power_rule->max_antenna_gain = | |
4014 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
4015 | ||
4016 | return 0; | |
4017 | } | |
4018 | ||
4019 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
4020 | { | |
4021 | int r; | |
4022 | char *data = NULL; | |
57b5ce07 | 4023 | enum nl80211_user_reg_hint_type user_reg_hint_type; |
b2e1b302 | 4024 | |
80778f18 LR |
4025 | /* |
4026 | * You should only get this when cfg80211 hasn't yet initialized | |
4027 | * completely when built-in to the kernel right between the time | |
4028 | * window between nl80211_init() and regulatory_init(), if that is | |
4029 | * even possible. | |
4030 | */ | |
458f4f9e | 4031 | if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) |
fe33eb39 | 4032 | return -EINPROGRESS; |
80778f18 | 4033 | |
fe33eb39 LR |
4034 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
4035 | return -EINVAL; | |
b2e1b302 LR |
4036 | |
4037 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
4038 | ||
57b5ce07 LR |
4039 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
4040 | user_reg_hint_type = | |
4041 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
4042 | else | |
4043 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
4044 | ||
4045 | switch (user_reg_hint_type) { | |
4046 | case NL80211_USER_REG_HINT_USER: | |
4047 | case NL80211_USER_REG_HINT_CELL_BASE: | |
4048 | break; | |
4049 | default: | |
4050 | return -EINVAL; | |
4051 | } | |
4052 | ||
4053 | r = regulatory_hint_user(data, user_reg_hint_type); | |
fe33eb39 | 4054 | |
b2e1b302 LR |
4055 | return r; |
4056 | } | |
4057 | ||
24bdd9f4 | 4058 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 4059 | struct genl_info *info) |
93da9cc1 | 4060 | { |
4c476991 | 4061 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 4062 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
4063 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
4064 | struct mesh_config cur_params; | |
4065 | int err = 0; | |
93da9cc1 | 4066 | void *hdr; |
4067 | struct nlattr *pinfoattr; | |
4068 | struct sk_buff *msg; | |
4069 | ||
29cbe68c JB |
4070 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
4071 | return -EOPNOTSUPP; | |
4072 | ||
24bdd9f4 | 4073 | if (!rdev->ops->get_mesh_config) |
4c476991 | 4074 | return -EOPNOTSUPP; |
f3f92586 | 4075 | |
29cbe68c JB |
4076 | wdev_lock(wdev); |
4077 | /* If not connected, get default parameters */ | |
4078 | if (!wdev->mesh_id_len) | |
4079 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
4080 | else | |
e35e4d28 | 4081 | err = rdev_get_mesh_config(rdev, dev, &cur_params); |
29cbe68c JB |
4082 | wdev_unlock(wdev); |
4083 | ||
93da9cc1 | 4084 | if (err) |
4c476991 | 4085 | return err; |
93da9cc1 | 4086 | |
4087 | /* Draw up a netlink message to send back */ | |
fd2120ca | 4088 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
4089 | if (!msg) |
4090 | return -ENOMEM; | |
15e47304 | 4091 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
24bdd9f4 | 4092 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 4093 | if (!hdr) |
efe1cf0c | 4094 | goto out; |
24bdd9f4 | 4095 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 4096 | if (!pinfoattr) |
4097 | goto nla_put_failure; | |
9360ffd1 DM |
4098 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
4099 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
4100 | cur_params.dot11MeshRetryTimeout) || | |
4101 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
4102 | cur_params.dot11MeshConfirmTimeout) || | |
4103 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
4104 | cur_params.dot11MeshHoldingTimeout) || | |
4105 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
4106 | cur_params.dot11MeshMaxPeerLinks) || | |
4107 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
4108 | cur_params.dot11MeshMaxRetries) || | |
4109 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
4110 | cur_params.dot11MeshTTL) || | |
4111 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
4112 | cur_params.element_ttl) || | |
4113 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
4114 | cur_params.auto_open_plinks) || | |
7eab0f64 JL |
4115 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
4116 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
9360ffd1 DM |
4117 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
4118 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
4119 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
4120 | cur_params.path_refresh_time) || | |
4121 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
4122 | cur_params.min_discovery_timeout) || | |
4123 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
4124 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
4125 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
4126 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
4127 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
4128 | cur_params.dot11MeshHWMPperrMinInterval) || | |
4129 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
4130 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
4131 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
4132 | cur_params.dot11MeshHWMPRootMode) || | |
4133 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
4134 | cur_params.dot11MeshHWMPRannInterval) || | |
4135 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
4136 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
4137 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
4138 | cur_params.dot11MeshForwarding) || | |
4139 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
70c33eaa AN |
4140 | cur_params.rssi_threshold) || |
4141 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
ac1073a6 CYY |
4142 | cur_params.ht_opmode) || |
4143 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
4144 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
4145 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
4146 | cur_params.dot11MeshHWMProotInterval) || |
4147 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3b1c5a53 MP |
4148 | cur_params.dot11MeshHWMPconfirmationInterval) || |
4149 | nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE, | |
4150 | cur_params.power_mode) || | |
4151 | nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW, | |
4152 | cur_params.dot11MeshAwakeWindowDuration)) | |
9360ffd1 | 4153 | goto nla_put_failure; |
93da9cc1 | 4154 | nla_nest_end(msg, pinfoattr); |
4155 | genlmsg_end(msg, hdr); | |
4c476991 | 4156 | return genlmsg_reply(msg, info); |
93da9cc1 | 4157 | |
3b85875a | 4158 | nla_put_failure: |
93da9cc1 | 4159 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 4160 | out: |
d080e275 | 4161 | nlmsg_free(msg); |
4c476991 | 4162 | return -ENOBUFS; |
93da9cc1 | 4163 | } |
4164 | ||
b54452b0 | 4165 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 4166 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
4167 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
4168 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
4169 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
4170 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
4171 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 4172 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 4173 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
d299a1f2 | 4174 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
93da9cc1 | 4175 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
4176 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
4177 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
4178 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
4179 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 4180 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 4181 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 4182 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 4183 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 4184 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 4185 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
a4f606ea CYY |
4186 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, |
4187 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
ac1073a6 CYY |
4188 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
4189 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
728b19e5 | 4190 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, |
3b1c5a53 MP |
4191 | [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 }, |
4192 | [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 }, | |
93da9cc1 | 4193 | }; |
4194 | ||
c80d545d JC |
4195 | static const struct nla_policy |
4196 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
d299a1f2 | 4197 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
c80d545d JC |
4198 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
4199 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 4200 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
581a8b0f | 4201 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
a4f606ea | 4202 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 4203 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
4204 | }; |
4205 | ||
24bdd9f4 | 4206 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
4207 | struct mesh_config *cfg, |
4208 | u32 *mask_out) | |
93da9cc1 | 4209 | { |
93da9cc1 | 4210 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 4211 | u32 mask = 0; |
93da9cc1 | 4212 | |
ea54fba2 MP |
4213 | #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \ |
4214 | do { \ | |
4215 | if (tb[attr]) { \ | |
4216 | if (fn(tb[attr]) < min || fn(tb[attr]) > max) \ | |
4217 | return -EINVAL; \ | |
4218 | cfg->param = fn(tb[attr]); \ | |
4219 | mask |= (1 << (attr - 1)); \ | |
4220 | } \ | |
4221 | } while (0) | |
bd90fdcc JB |
4222 | |
4223 | ||
24bdd9f4 | 4224 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 4225 | return -EINVAL; |
4226 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 4227 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 4228 | nl80211_meshconf_params_policy)) |
93da9cc1 | 4229 | return -EINVAL; |
4230 | ||
93da9cc1 | 4231 | /* This makes sure that there aren't more than 32 mesh config |
4232 | * parameters (otherwise our bitfield scheme would not work.) */ | |
4233 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
4234 | ||
4235 | /* Fill in the params struct */ | |
ea54fba2 | 4236 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255, |
a4f606ea CYY |
4237 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, |
4238 | nla_get_u16); | |
ea54fba2 | 4239 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255, |
a4f606ea CYY |
4240 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
4241 | nla_get_u16); | |
ea54fba2 | 4242 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255, |
a4f606ea CYY |
4243 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, |
4244 | nla_get_u16); | |
ea54fba2 | 4245 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255, |
a4f606ea CYY |
4246 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, |
4247 | nla_get_u16); | |
ea54fba2 | 4248 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16, |
a4f606ea CYY |
4249 | mask, NL80211_MESHCONF_MAX_RETRIES, |
4250 | nla_get_u8); | |
ea54fba2 | 4251 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255, |
a4f606ea | 4252 | mask, NL80211_MESHCONF_TTL, nla_get_u8); |
ea54fba2 | 4253 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255, |
a4f606ea CYY |
4254 | mask, NL80211_MESHCONF_ELEMENT_TTL, |
4255 | nla_get_u8); | |
ea54fba2 | 4256 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1, |
a4f606ea CYY |
4257 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
4258 | nla_get_u8); | |
ea54fba2 MP |
4259 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, |
4260 | 1, 255, mask, | |
a4f606ea CYY |
4261 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
4262 | nla_get_u32); | |
ea54fba2 | 4263 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255, |
a4f606ea CYY |
4264 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
4265 | nla_get_u8); | |
ea54fba2 | 4266 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535, |
a4f606ea CYY |
4267 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, |
4268 | nla_get_u32); | |
ea54fba2 | 4269 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535, |
a4f606ea CYY |
4270 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
4271 | nla_get_u16); | |
ea54fba2 MP |
4272 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, |
4273 | 1, 65535, mask, | |
a4f606ea CYY |
4274 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
4275 | nla_get_u32); | |
93da9cc1 | 4276 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, |
ea54fba2 MP |
4277 | 1, 65535, mask, |
4278 | NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
a4f606ea | 4279 | nla_get_u16); |
dca7e943 | 4280 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
ea54fba2 MP |
4281 | 1, 65535, mask, |
4282 | NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
a4f606ea | 4283 | nla_get_u16); |
93da9cc1 | 4284 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
4285 | dot11MeshHWMPnetDiameterTraversalTime, |
4286 | 1, 65535, mask, | |
a4f606ea CYY |
4287 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
4288 | nla_get_u16); | |
ea54fba2 MP |
4289 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4, |
4290 | mask, NL80211_MESHCONF_HWMP_ROOTMODE, | |
4291 | nla_get_u8); | |
4292 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535, | |
4293 | mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
a4f606ea | 4294 | nla_get_u16); |
63c5723b | 4295 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
4296 | dot11MeshGateAnnouncementProtocol, 0, 1, |
4297 | mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
a4f606ea | 4298 | nla_get_u8); |
ea54fba2 | 4299 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1, |
a4f606ea CYY |
4300 | mask, NL80211_MESHCONF_FORWARDING, |
4301 | nla_get_u8); | |
ea54fba2 | 4302 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255, |
a4f606ea CYY |
4303 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, |
4304 | nla_get_u32); | |
ea54fba2 | 4305 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16, |
a4f606ea | 4306 | mask, NL80211_MESHCONF_HT_OPMODE, |
ac1073a6 CYY |
4307 | nla_get_u16); |
4308 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
ea54fba2 | 4309 | 1, 65535, mask, |
ac1073a6 CYY |
4310 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
4311 | nla_get_u32); | |
ea54fba2 | 4312 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535, |
ac1073a6 | 4313 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
728b19e5 CYY |
4314 | nla_get_u16); |
4315 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
ea54fba2 MP |
4316 | dot11MeshHWMPconfirmationInterval, |
4317 | 1, 65535, mask, | |
728b19e5 | 4318 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
a4f606ea | 4319 | nla_get_u16); |
3b1c5a53 MP |
4320 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, |
4321 | NL80211_MESH_POWER_ACTIVE, | |
4322 | NL80211_MESH_POWER_MAX, | |
4323 | mask, NL80211_MESHCONF_POWER_MODE, | |
4324 | nla_get_u32); | |
4325 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, | |
4326 | 0, 65535, mask, | |
4327 | NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16); | |
bd90fdcc JB |
4328 | if (mask_out) |
4329 | *mask_out = mask; | |
c80d545d | 4330 | |
bd90fdcc JB |
4331 | return 0; |
4332 | ||
4333 | #undef FILL_IN_MESH_PARAM_IF_SET | |
4334 | } | |
4335 | ||
c80d545d JC |
4336 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
4337 | struct mesh_setup *setup) | |
4338 | { | |
4339 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; | |
4340 | ||
4341 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
4342 | return -EINVAL; | |
4343 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
4344 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
4345 | nl80211_mesh_setup_params_policy)) | |
4346 | return -EINVAL; | |
4347 | ||
d299a1f2 JC |
4348 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
4349 | setup->sync_method = | |
4350 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
4351 | IEEE80211_SYNC_METHOD_VENDOR : | |
4352 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
4353 | ||
c80d545d JC |
4354 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
4355 | setup->path_sel_proto = | |
4356 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
4357 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
4358 | IEEE80211_PATH_PROTOCOL_HWMP; | |
4359 | ||
4360 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
4361 | setup->path_metric = | |
4362 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
4363 | IEEE80211_PATH_METRIC_VENDOR : | |
4364 | IEEE80211_PATH_METRIC_AIRTIME; | |
4365 | ||
581a8b0f JC |
4366 | |
4367 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 4368 | struct nlattr *ieattr = |
581a8b0f | 4369 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
4370 | if (!is_valid_ie_attr(ieattr)) |
4371 | return -EINVAL; | |
581a8b0f JC |
4372 | setup->ie = nla_data(ieattr); |
4373 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 4374 | } |
b130e5ce JC |
4375 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
4376 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
c80d545d JC |
4377 | |
4378 | return 0; | |
4379 | } | |
4380 | ||
24bdd9f4 | 4381 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 4382 | struct genl_info *info) |
bd90fdcc JB |
4383 | { |
4384 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4385 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 4386 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
4387 | struct mesh_config cfg; |
4388 | u32 mask; | |
4389 | int err; | |
4390 | ||
29cbe68c JB |
4391 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
4392 | return -EOPNOTSUPP; | |
4393 | ||
24bdd9f4 | 4394 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
4395 | return -EOPNOTSUPP; |
4396 | ||
24bdd9f4 | 4397 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
4398 | if (err) |
4399 | return err; | |
4400 | ||
29cbe68c JB |
4401 | wdev_lock(wdev); |
4402 | if (!wdev->mesh_id_len) | |
4403 | err = -ENOLINK; | |
4404 | ||
4405 | if (!err) | |
e35e4d28 | 4406 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); |
29cbe68c JB |
4407 | |
4408 | wdev_unlock(wdev); | |
4409 | ||
4410 | return err; | |
93da9cc1 | 4411 | } |
4412 | ||
f130347c LR |
4413 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
4414 | { | |
458f4f9e | 4415 | const struct ieee80211_regdomain *regdom; |
f130347c LR |
4416 | struct sk_buff *msg; |
4417 | void *hdr = NULL; | |
4418 | struct nlattr *nl_reg_rules; | |
4419 | unsigned int i; | |
4420 | int err = -EINVAL; | |
4421 | ||
a1794390 | 4422 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
4423 | |
4424 | if (!cfg80211_regdomain) | |
4425 | goto out; | |
4426 | ||
fd2120ca | 4427 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
4428 | if (!msg) { |
4429 | err = -ENOBUFS; | |
4430 | goto out; | |
4431 | } | |
4432 | ||
15e47304 | 4433 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
f130347c LR |
4434 | NL80211_CMD_GET_REG); |
4435 | if (!hdr) | |
efe1cf0c | 4436 | goto put_failure; |
f130347c | 4437 | |
57b5ce07 LR |
4438 | if (reg_last_request_cell_base() && |
4439 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
4440 | NL80211_USER_REG_HINT_CELL_BASE)) | |
4441 | goto nla_put_failure; | |
4442 | ||
458f4f9e JB |
4443 | rcu_read_lock(); |
4444 | regdom = rcu_dereference(cfg80211_regdomain); | |
4445 | ||
4446 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) || | |
4447 | (regdom->dfs_region && | |
4448 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region))) | |
4449 | goto nla_put_failure_rcu; | |
4450 | ||
f130347c LR |
4451 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); |
4452 | if (!nl_reg_rules) | |
458f4f9e | 4453 | goto nla_put_failure_rcu; |
f130347c | 4454 | |
458f4f9e | 4455 | for (i = 0; i < regdom->n_reg_rules; i++) { |
f130347c LR |
4456 | struct nlattr *nl_reg_rule; |
4457 | const struct ieee80211_reg_rule *reg_rule; | |
4458 | const struct ieee80211_freq_range *freq_range; | |
4459 | const struct ieee80211_power_rule *power_rule; | |
4460 | ||
458f4f9e | 4461 | reg_rule = ®dom->reg_rules[i]; |
f130347c LR |
4462 | freq_range = ®_rule->freq_range; |
4463 | power_rule = ®_rule->power_rule; | |
4464 | ||
4465 | nl_reg_rule = nla_nest_start(msg, i); | |
4466 | if (!nl_reg_rule) | |
458f4f9e | 4467 | goto nla_put_failure_rcu; |
f130347c | 4468 | |
9360ffd1 DM |
4469 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
4470 | reg_rule->flags) || | |
4471 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
4472 | freq_range->start_freq_khz) || | |
4473 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
4474 | freq_range->end_freq_khz) || | |
4475 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
4476 | freq_range->max_bandwidth_khz) || | |
4477 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
4478 | power_rule->max_antenna_gain) || | |
4479 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
4480 | power_rule->max_eirp)) | |
458f4f9e | 4481 | goto nla_put_failure_rcu; |
f130347c LR |
4482 | |
4483 | nla_nest_end(msg, nl_reg_rule); | |
4484 | } | |
458f4f9e | 4485 | rcu_read_unlock(); |
f130347c LR |
4486 | |
4487 | nla_nest_end(msg, nl_reg_rules); | |
4488 | ||
4489 | genlmsg_end(msg, hdr); | |
134e6375 | 4490 | err = genlmsg_reply(msg, info); |
f130347c LR |
4491 | goto out; |
4492 | ||
458f4f9e JB |
4493 | nla_put_failure_rcu: |
4494 | rcu_read_unlock(); | |
f130347c LR |
4495 | nla_put_failure: |
4496 | genlmsg_cancel(msg, hdr); | |
efe1cf0c | 4497 | put_failure: |
d080e275 | 4498 | nlmsg_free(msg); |
f130347c LR |
4499 | err = -EMSGSIZE; |
4500 | out: | |
a1794390 | 4501 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
4502 | return err; |
4503 | } | |
4504 | ||
b2e1b302 LR |
4505 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
4506 | { | |
4507 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
4508 | struct nlattr *nl_reg_rule; | |
4509 | char *alpha2 = NULL; | |
4510 | int rem_reg_rules = 0, r = 0; | |
4511 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
8b60b078 | 4512 | u8 dfs_region = 0; |
b2e1b302 LR |
4513 | struct ieee80211_regdomain *rd = NULL; |
4514 | ||
4515 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
4516 | return -EINVAL; | |
4517 | ||
4518 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
4519 | return -EINVAL; | |
4520 | ||
4521 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
4522 | ||
8b60b078 LR |
4523 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
4524 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
4525 | ||
b2e1b302 | 4526 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 4527 | rem_reg_rules) { |
b2e1b302 LR |
4528 | num_rules++; |
4529 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 4530 | return -EINVAL; |
b2e1b302 LR |
4531 | } |
4532 | ||
b2e1b302 | 4533 | size_of_regd = sizeof(struct ieee80211_regdomain) + |
1a919318 | 4534 | num_rules * sizeof(struct ieee80211_reg_rule); |
b2e1b302 LR |
4535 | |
4536 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
6913b49a JB |
4537 | if (!rd) |
4538 | return -ENOMEM; | |
b2e1b302 LR |
4539 | |
4540 | rd->n_reg_rules = num_rules; | |
4541 | rd->alpha2[0] = alpha2[0]; | |
4542 | rd->alpha2[1] = alpha2[1]; | |
4543 | ||
8b60b078 LR |
4544 | /* |
4545 | * Disable DFS master mode if the DFS region was | |
4546 | * not supported or known on this kernel. | |
4547 | */ | |
4548 | if (reg_supported_dfs_region(dfs_region)) | |
4549 | rd->dfs_region = dfs_region; | |
4550 | ||
b2e1b302 | 4551 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 4552 | rem_reg_rules) { |
b2e1b302 | 4553 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, |
1a919318 JB |
4554 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), |
4555 | reg_rule_policy); | |
b2e1b302 LR |
4556 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); |
4557 | if (r) | |
4558 | goto bad_reg; | |
4559 | ||
4560 | rule_idx++; | |
4561 | ||
d0e18f83 LR |
4562 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
4563 | r = -EINVAL; | |
b2e1b302 | 4564 | goto bad_reg; |
d0e18f83 | 4565 | } |
b2e1b302 LR |
4566 | } |
4567 | ||
6913b49a JB |
4568 | mutex_lock(&cfg80211_mutex); |
4569 | ||
b2e1b302 | 4570 | r = set_regdom(rd); |
6913b49a | 4571 | /* set_regdom took ownership */ |
1a919318 | 4572 | rd = NULL; |
6913b49a | 4573 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 4574 | |
d2372b31 | 4575 | bad_reg: |
b2e1b302 | 4576 | kfree(rd); |
d0e18f83 | 4577 | return r; |
b2e1b302 LR |
4578 | } |
4579 | ||
83f5e2cf JB |
4580 | static int validate_scan_freqs(struct nlattr *freqs) |
4581 | { | |
4582 | struct nlattr *attr1, *attr2; | |
4583 | int n_channels = 0, tmp1, tmp2; | |
4584 | ||
4585 | nla_for_each_nested(attr1, freqs, tmp1) { | |
4586 | n_channels++; | |
4587 | /* | |
4588 | * Some hardware has a limited channel list for | |
4589 | * scanning, and it is pretty much nonsensical | |
4590 | * to scan for a channel twice, so disallow that | |
4591 | * and don't require drivers to check that the | |
4592 | * channel list they get isn't longer than what | |
4593 | * they can scan, as long as they can scan all | |
4594 | * the channels they registered at once. | |
4595 | */ | |
4596 | nla_for_each_nested(attr2, freqs, tmp2) | |
4597 | if (attr1 != attr2 && | |
4598 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
4599 | return 0; | |
4600 | } | |
4601 | ||
4602 | return n_channels; | |
4603 | } | |
4604 | ||
2a519311 JB |
4605 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
4606 | { | |
4c476991 | 4607 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fd014284 | 4608 | struct wireless_dev *wdev = info->user_ptr[1]; |
2a519311 | 4609 | struct cfg80211_scan_request *request; |
2a519311 JB |
4610 | struct nlattr *attr; |
4611 | struct wiphy *wiphy; | |
83f5e2cf | 4612 | int err, tmp, n_ssids = 0, n_channels, i; |
70692ad2 | 4613 | size_t ie_len; |
2a519311 | 4614 | |
f4a11bb0 JB |
4615 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4616 | return -EINVAL; | |
4617 | ||
79c97e97 | 4618 | wiphy = &rdev->wiphy; |
2a519311 | 4619 | |
4c476991 JB |
4620 | if (!rdev->ops->scan) |
4621 | return -EOPNOTSUPP; | |
2a519311 | 4622 | |
4c476991 JB |
4623 | if (rdev->scan_req) |
4624 | return -EBUSY; | |
2a519311 JB |
4625 | |
4626 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
4627 | n_channels = validate_scan_freqs( |
4628 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
4629 | if (!n_channels) |
4630 | return -EINVAL; | |
2a519311 | 4631 | } else { |
34850ab2 | 4632 | enum ieee80211_band band; |
83f5e2cf JB |
4633 | n_channels = 0; |
4634 | ||
2a519311 JB |
4635 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
4636 | if (wiphy->bands[band]) | |
4637 | n_channels += wiphy->bands[band]->n_channels; | |
4638 | } | |
4639 | ||
4640 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
4641 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
4642 | n_ssids++; | |
4643 | ||
4c476991 JB |
4644 | if (n_ssids > wiphy->max_scan_ssids) |
4645 | return -EINVAL; | |
2a519311 | 4646 | |
70692ad2 JM |
4647 | if (info->attrs[NL80211_ATTR_IE]) |
4648 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4649 | else | |
4650 | ie_len = 0; | |
4651 | ||
4c476991 JB |
4652 | if (ie_len > wiphy->max_scan_ie_len) |
4653 | return -EINVAL; | |
18a83659 | 4654 | |
2a519311 | 4655 | request = kzalloc(sizeof(*request) |
a2cd43c5 LC |
4656 | + sizeof(*request->ssids) * n_ssids |
4657 | + sizeof(*request->channels) * n_channels | |
70692ad2 | 4658 | + ie_len, GFP_KERNEL); |
4c476991 JB |
4659 | if (!request) |
4660 | return -ENOMEM; | |
2a519311 | 4661 | |
2a519311 | 4662 | if (n_ssids) |
5ba63533 | 4663 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 4664 | request->n_ssids = n_ssids; |
70692ad2 JM |
4665 | if (ie_len) { |
4666 | if (request->ssids) | |
4667 | request->ie = (void *)(request->ssids + n_ssids); | |
4668 | else | |
4669 | request->ie = (void *)(request->channels + n_channels); | |
4670 | } | |
2a519311 | 4671 | |
584991dc | 4672 | i = 0; |
2a519311 JB |
4673 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
4674 | /* user specified, bail out if channel not found */ | |
2a519311 | 4675 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
4676 | struct ieee80211_channel *chan; |
4677 | ||
4678 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4679 | ||
4680 | if (!chan) { | |
2a519311 JB |
4681 | err = -EINVAL; |
4682 | goto out_free; | |
4683 | } | |
584991dc JB |
4684 | |
4685 | /* ignore disabled channels */ | |
4686 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4687 | continue; | |
4688 | ||
4689 | request->channels[i] = chan; | |
2a519311 JB |
4690 | i++; |
4691 | } | |
4692 | } else { | |
34850ab2 JB |
4693 | enum ieee80211_band band; |
4694 | ||
2a519311 | 4695 | /* all channels */ |
2a519311 JB |
4696 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
4697 | int j; | |
4698 | if (!wiphy->bands[band]) | |
4699 | continue; | |
4700 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
4701 | struct ieee80211_channel *chan; |
4702 | ||
4703 | chan = &wiphy->bands[band]->channels[j]; | |
4704 | ||
4705 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4706 | continue; | |
4707 | ||
4708 | request->channels[i] = chan; | |
2a519311 JB |
4709 | i++; |
4710 | } | |
4711 | } | |
4712 | } | |
4713 | ||
584991dc JB |
4714 | if (!i) { |
4715 | err = -EINVAL; | |
4716 | goto out_free; | |
4717 | } | |
4718 | ||
4719 | request->n_channels = i; | |
4720 | ||
2a519311 JB |
4721 | i = 0; |
4722 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4723 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
57a27e1d | 4724 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
2a519311 JB |
4725 | err = -EINVAL; |
4726 | goto out_free; | |
4727 | } | |
57a27e1d | 4728 | request->ssids[i].ssid_len = nla_len(attr); |
2a519311 | 4729 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
2a519311 JB |
4730 | i++; |
4731 | } | |
4732 | } | |
4733 | ||
70692ad2 JM |
4734 | if (info->attrs[NL80211_ATTR_IE]) { |
4735 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
4736 | memcpy((void *)request->ie, |
4737 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
4738 | request->ie_len); |
4739 | } | |
4740 | ||
34850ab2 | 4741 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
a401d2bb JB |
4742 | if (wiphy->bands[i]) |
4743 | request->rates[i] = | |
4744 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
34850ab2 JB |
4745 | |
4746 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
4747 | nla_for_each_nested(attr, | |
4748 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
4749 | tmp) { | |
4750 | enum ieee80211_band band = nla_type(attr); | |
4751 | ||
84404623 | 4752 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
34850ab2 JB |
4753 | err = -EINVAL; |
4754 | goto out_free; | |
4755 | } | |
4756 | err = ieee80211_get_ratemask(wiphy->bands[band], | |
4757 | nla_data(attr), | |
4758 | nla_len(attr), | |
4759 | &request->rates[band]); | |
4760 | if (err) | |
4761 | goto out_free; | |
4762 | } | |
4763 | } | |
4764 | ||
46856bbf | 4765 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
4766 | request->flags = nla_get_u32( |
4767 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
15d6030b SL |
4768 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
4769 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || | |
4770 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && | |
4771 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { | |
46856bbf SL |
4772 | err = -EOPNOTSUPP; |
4773 | goto out_free; | |
4774 | } | |
4775 | } | |
ed473771 | 4776 | |
e9f935e3 RM |
4777 | request->no_cck = |
4778 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
4779 | ||
fd014284 | 4780 | request->wdev = wdev; |
79c97e97 | 4781 | request->wiphy = &rdev->wiphy; |
15d6030b | 4782 | request->scan_start = jiffies; |
2a519311 | 4783 | |
79c97e97 | 4784 | rdev->scan_req = request; |
e35e4d28 | 4785 | err = rdev_scan(rdev, request); |
2a519311 | 4786 | |
463d0183 | 4787 | if (!err) { |
fd014284 JB |
4788 | nl80211_send_scan_start(rdev, wdev); |
4789 | if (wdev->netdev) | |
4790 | dev_hold(wdev->netdev); | |
4c476991 | 4791 | } else { |
2a519311 | 4792 | out_free: |
79c97e97 | 4793 | rdev->scan_req = NULL; |
2a519311 JB |
4794 | kfree(request); |
4795 | } | |
3b85875a | 4796 | |
2a519311 JB |
4797 | return err; |
4798 | } | |
4799 | ||
807f8a8c LC |
4800 | static int nl80211_start_sched_scan(struct sk_buff *skb, |
4801 | struct genl_info *info) | |
4802 | { | |
4803 | struct cfg80211_sched_scan_request *request; | |
4804 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4805 | struct net_device *dev = info->user_ptr[1]; | |
807f8a8c LC |
4806 | struct nlattr *attr; |
4807 | struct wiphy *wiphy; | |
a1f1c21c | 4808 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; |
bbe6ad6d | 4809 | u32 interval; |
807f8a8c LC |
4810 | enum ieee80211_band band; |
4811 | size_t ie_len; | |
a1f1c21c | 4812 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
807f8a8c LC |
4813 | |
4814 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4815 | !rdev->ops->sched_scan_start) | |
4816 | return -EOPNOTSUPP; | |
4817 | ||
4818 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4819 | return -EINVAL; | |
4820 | ||
bbe6ad6d LC |
4821 | if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
4822 | return -EINVAL; | |
4823 | ||
4824 | interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
4825 | if (interval == 0) | |
4826 | return -EINVAL; | |
4827 | ||
807f8a8c LC |
4828 | wiphy = &rdev->wiphy; |
4829 | ||
4830 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4831 | n_channels = validate_scan_freqs( | |
4832 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4833 | if (!n_channels) | |
4834 | return -EINVAL; | |
4835 | } else { | |
4836 | n_channels = 0; | |
4837 | ||
4838 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
4839 | if (wiphy->bands[band]) | |
4840 | n_channels += wiphy->bands[band]->n_channels; | |
4841 | } | |
4842 | ||
4843 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
4844 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4845 | tmp) | |
4846 | n_ssids++; | |
4847 | ||
93b6aa69 | 4848 | if (n_ssids > wiphy->max_sched_scan_ssids) |
807f8a8c LC |
4849 | return -EINVAL; |
4850 | ||
a1f1c21c LC |
4851 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) |
4852 | nla_for_each_nested(attr, | |
4853 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4854 | tmp) | |
4855 | n_match_sets++; | |
4856 | ||
4857 | if (n_match_sets > wiphy->max_match_sets) | |
4858 | return -EINVAL; | |
4859 | ||
807f8a8c LC |
4860 | if (info->attrs[NL80211_ATTR_IE]) |
4861 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4862 | else | |
4863 | ie_len = 0; | |
4864 | ||
5a865bad | 4865 | if (ie_len > wiphy->max_sched_scan_ie_len) |
807f8a8c LC |
4866 | return -EINVAL; |
4867 | ||
c10841ca LC |
4868 | mutex_lock(&rdev->sched_scan_mtx); |
4869 | ||
4870 | if (rdev->sched_scan_req) { | |
4871 | err = -EINPROGRESS; | |
4872 | goto out; | |
4873 | } | |
4874 | ||
807f8a8c | 4875 | request = kzalloc(sizeof(*request) |
a2cd43c5 | 4876 | + sizeof(*request->ssids) * n_ssids |
a1f1c21c | 4877 | + sizeof(*request->match_sets) * n_match_sets |
a2cd43c5 | 4878 | + sizeof(*request->channels) * n_channels |
807f8a8c | 4879 | + ie_len, GFP_KERNEL); |
c10841ca LC |
4880 | if (!request) { |
4881 | err = -ENOMEM; | |
4882 | goto out; | |
4883 | } | |
807f8a8c LC |
4884 | |
4885 | if (n_ssids) | |
4886 | request->ssids = (void *)&request->channels[n_channels]; | |
4887 | request->n_ssids = n_ssids; | |
4888 | if (ie_len) { | |
4889 | if (request->ssids) | |
4890 | request->ie = (void *)(request->ssids + n_ssids); | |
4891 | else | |
4892 | request->ie = (void *)(request->channels + n_channels); | |
4893 | } | |
4894 | ||
a1f1c21c LC |
4895 | if (n_match_sets) { |
4896 | if (request->ie) | |
4897 | request->match_sets = (void *)(request->ie + ie_len); | |
4898 | else if (request->ssids) | |
4899 | request->match_sets = | |
4900 | (void *)(request->ssids + n_ssids); | |
4901 | else | |
4902 | request->match_sets = | |
4903 | (void *)(request->channels + n_channels); | |
4904 | } | |
4905 | request->n_match_sets = n_match_sets; | |
4906 | ||
807f8a8c LC |
4907 | i = 0; |
4908 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4909 | /* user specified, bail out if channel not found */ | |
4910 | nla_for_each_nested(attr, | |
4911 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], | |
4912 | tmp) { | |
4913 | struct ieee80211_channel *chan; | |
4914 | ||
4915 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4916 | ||
4917 | if (!chan) { | |
4918 | err = -EINVAL; | |
4919 | goto out_free; | |
4920 | } | |
4921 | ||
4922 | /* ignore disabled channels */ | |
4923 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4924 | continue; | |
4925 | ||
4926 | request->channels[i] = chan; | |
4927 | i++; | |
4928 | } | |
4929 | } else { | |
4930 | /* all channels */ | |
4931 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4932 | int j; | |
4933 | if (!wiphy->bands[band]) | |
4934 | continue; | |
4935 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
4936 | struct ieee80211_channel *chan; | |
4937 | ||
4938 | chan = &wiphy->bands[band]->channels[j]; | |
4939 | ||
4940 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4941 | continue; | |
4942 | ||
4943 | request->channels[i] = chan; | |
4944 | i++; | |
4945 | } | |
4946 | } | |
4947 | } | |
4948 | ||
4949 | if (!i) { | |
4950 | err = -EINVAL; | |
4951 | goto out_free; | |
4952 | } | |
4953 | ||
4954 | request->n_channels = i; | |
4955 | ||
4956 | i = 0; | |
4957 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4958 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4959 | tmp) { | |
57a27e1d | 4960 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
807f8a8c LC |
4961 | err = -EINVAL; |
4962 | goto out_free; | |
4963 | } | |
57a27e1d | 4964 | request->ssids[i].ssid_len = nla_len(attr); |
807f8a8c LC |
4965 | memcpy(request->ssids[i].ssid, nla_data(attr), |
4966 | nla_len(attr)); | |
807f8a8c LC |
4967 | i++; |
4968 | } | |
4969 | } | |
4970 | ||
a1f1c21c LC |
4971 | i = 0; |
4972 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
4973 | nla_for_each_nested(attr, | |
4974 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4975 | tmp) { | |
88e920b4 | 4976 | struct nlattr *ssid, *rssi; |
a1f1c21c LC |
4977 | |
4978 | nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
4979 | nla_data(attr), nla_len(attr), | |
4980 | nl80211_match_policy); | |
4a4ab0d7 | 4981 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; |
a1f1c21c LC |
4982 | if (ssid) { |
4983 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { | |
4984 | err = -EINVAL; | |
4985 | goto out_free; | |
4986 | } | |
4987 | memcpy(request->match_sets[i].ssid.ssid, | |
4988 | nla_data(ssid), nla_len(ssid)); | |
4989 | request->match_sets[i].ssid.ssid_len = | |
4990 | nla_len(ssid); | |
4991 | } | |
88e920b4 TP |
4992 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; |
4993 | if (rssi) | |
4994 | request->rssi_thold = nla_get_u32(rssi); | |
4995 | else | |
4996 | request->rssi_thold = | |
4997 | NL80211_SCAN_RSSI_THOLD_OFF; | |
a1f1c21c LC |
4998 | i++; |
4999 | } | |
5000 | } | |
5001 | ||
807f8a8c LC |
5002 | if (info->attrs[NL80211_ATTR_IE]) { |
5003 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5004 | memcpy((void *)request->ie, | |
5005 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5006 | request->ie_len); | |
5007 | } | |
5008 | ||
46856bbf | 5009 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
5010 | request->flags = nla_get_u32( |
5011 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
15d6030b SL |
5012 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
5013 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || | |
5014 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && | |
5015 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { | |
46856bbf SL |
5016 | err = -EOPNOTSUPP; |
5017 | goto out_free; | |
5018 | } | |
5019 | } | |
ed473771 | 5020 | |
807f8a8c LC |
5021 | request->dev = dev; |
5022 | request->wiphy = &rdev->wiphy; | |
bbe6ad6d | 5023 | request->interval = interval; |
15d6030b | 5024 | request->scan_start = jiffies; |
807f8a8c | 5025 | |
e35e4d28 | 5026 | err = rdev_sched_scan_start(rdev, dev, request); |
807f8a8c LC |
5027 | if (!err) { |
5028 | rdev->sched_scan_req = request; | |
5029 | nl80211_send_sched_scan(rdev, dev, | |
5030 | NL80211_CMD_START_SCHED_SCAN); | |
5031 | goto out; | |
5032 | } | |
5033 | ||
5034 | out_free: | |
5035 | kfree(request); | |
5036 | out: | |
c10841ca | 5037 | mutex_unlock(&rdev->sched_scan_mtx); |
807f8a8c LC |
5038 | return err; |
5039 | } | |
5040 | ||
5041 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
5042 | struct genl_info *info) | |
5043 | { | |
5044 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
c10841ca | 5045 | int err; |
807f8a8c LC |
5046 | |
5047 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
5048 | !rdev->ops->sched_scan_stop) | |
5049 | return -EOPNOTSUPP; | |
5050 | ||
c10841ca LC |
5051 | mutex_lock(&rdev->sched_scan_mtx); |
5052 | err = __cfg80211_stop_sched_scan(rdev, false); | |
5053 | mutex_unlock(&rdev->sched_scan_mtx); | |
5054 | ||
5055 | return err; | |
807f8a8c LC |
5056 | } |
5057 | ||
9720bb3a JB |
5058 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
5059 | u32 seq, int flags, | |
2a519311 | 5060 | struct cfg80211_registered_device *rdev, |
48ab905d JB |
5061 | struct wireless_dev *wdev, |
5062 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 5063 | { |
48ab905d | 5064 | struct cfg80211_bss *res = &intbss->pub; |
9caf0364 | 5065 | const struct cfg80211_bss_ies *ies; |
2a519311 JB |
5066 | void *hdr; |
5067 | struct nlattr *bss; | |
8cef2c9d | 5068 | bool tsf = false; |
48ab905d JB |
5069 | |
5070 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 | 5071 | |
15e47304 | 5072 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
2a519311 JB |
5073 | NL80211_CMD_NEW_SCAN_RESULTS); |
5074 | if (!hdr) | |
5075 | return -1; | |
5076 | ||
9720bb3a JB |
5077 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
5078 | ||
9360ffd1 DM |
5079 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) || |
5080 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) | |
5081 | goto nla_put_failure; | |
2a519311 JB |
5082 | |
5083 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
5084 | if (!bss) | |
5085 | goto nla_put_failure; | |
9360ffd1 | 5086 | if ((!is_zero_ether_addr(res->bssid) && |
9caf0364 | 5087 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid))) |
9360ffd1 | 5088 | goto nla_put_failure; |
9caf0364 JB |
5089 | |
5090 | rcu_read_lock(); | |
5091 | ies = rcu_dereference(res->ies); | |
8cef2c9d JB |
5092 | if (ies) { |
5093 | if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) | |
5094 | goto fail_unlock_rcu; | |
5095 | tsf = true; | |
5096 | if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
5097 | ies->len, ies->data)) | |
5098 | goto fail_unlock_rcu; | |
9caf0364 JB |
5099 | } |
5100 | ies = rcu_dereference(res->beacon_ies); | |
8cef2c9d JB |
5101 | if (ies) { |
5102 | if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) | |
5103 | goto fail_unlock_rcu; | |
5104 | if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES, | |
5105 | ies->len, ies->data)) | |
5106 | goto fail_unlock_rcu; | |
9caf0364 JB |
5107 | } |
5108 | rcu_read_unlock(); | |
5109 | ||
9360ffd1 DM |
5110 | if (res->beacon_interval && |
5111 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
5112 | goto nla_put_failure; | |
5113 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
5114 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
5115 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, | |
5116 | jiffies_to_msecs(jiffies - intbss->ts))) | |
5117 | goto nla_put_failure; | |
2a519311 | 5118 | |
77965c97 | 5119 | switch (rdev->wiphy.signal_type) { |
2a519311 | 5120 | case CFG80211_SIGNAL_TYPE_MBM: |
9360ffd1 DM |
5121 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
5122 | goto nla_put_failure; | |
2a519311 JB |
5123 | break; |
5124 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
9360ffd1 DM |
5125 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
5126 | goto nla_put_failure; | |
2a519311 JB |
5127 | break; |
5128 | default: | |
5129 | break; | |
5130 | } | |
5131 | ||
48ab905d | 5132 | switch (wdev->iftype) { |
074ac8df | 5133 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d | 5134 | case NL80211_IFTYPE_STATION: |
9360ffd1 DM |
5135 | if (intbss == wdev->current_bss && |
5136 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
5137 | NL80211_BSS_STATUS_ASSOCIATED)) | |
5138 | goto nla_put_failure; | |
48ab905d JB |
5139 | break; |
5140 | case NL80211_IFTYPE_ADHOC: | |
9360ffd1 DM |
5141 | if (intbss == wdev->current_bss && |
5142 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
5143 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
5144 | goto nla_put_failure; | |
48ab905d JB |
5145 | break; |
5146 | default: | |
5147 | break; | |
5148 | } | |
5149 | ||
2a519311 JB |
5150 | nla_nest_end(msg, bss); |
5151 | ||
5152 | return genlmsg_end(msg, hdr); | |
5153 | ||
8cef2c9d JB |
5154 | fail_unlock_rcu: |
5155 | rcu_read_unlock(); | |
2a519311 JB |
5156 | nla_put_failure: |
5157 | genlmsg_cancel(msg, hdr); | |
5158 | return -EMSGSIZE; | |
5159 | } | |
5160 | ||
5161 | static int nl80211_dump_scan(struct sk_buff *skb, | |
5162 | struct netlink_callback *cb) | |
5163 | { | |
48ab905d JB |
5164 | struct cfg80211_registered_device *rdev; |
5165 | struct net_device *dev; | |
2a519311 | 5166 | struct cfg80211_internal_bss *scan; |
48ab905d | 5167 | struct wireless_dev *wdev; |
2a519311 JB |
5168 | int start = cb->args[1], idx = 0; |
5169 | int err; | |
5170 | ||
67748893 JB |
5171 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); |
5172 | if (err) | |
5173 | return err; | |
2a519311 | 5174 | |
48ab905d | 5175 | wdev = dev->ieee80211_ptr; |
2a519311 | 5176 | |
48ab905d JB |
5177 | wdev_lock(wdev); |
5178 | spin_lock_bh(&rdev->bss_lock); | |
5179 | cfg80211_bss_expire(rdev); | |
5180 | ||
9720bb3a JB |
5181 | cb->seq = rdev->bss_generation; |
5182 | ||
48ab905d | 5183 | list_for_each_entry(scan, &rdev->bss_list, list) { |
2a519311 JB |
5184 | if (++idx <= start) |
5185 | continue; | |
9720bb3a | 5186 | if (nl80211_send_bss(skb, cb, |
2a519311 | 5187 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
48ab905d | 5188 | rdev, wdev, scan) < 0) { |
2a519311 | 5189 | idx--; |
67748893 | 5190 | break; |
2a519311 JB |
5191 | } |
5192 | } | |
5193 | ||
48ab905d JB |
5194 | spin_unlock_bh(&rdev->bss_lock); |
5195 | wdev_unlock(wdev); | |
2a519311 JB |
5196 | |
5197 | cb->args[1] = idx; | |
67748893 | 5198 | nl80211_finish_netdev_dump(rdev); |
2a519311 | 5199 | |
67748893 | 5200 | return skb->len; |
2a519311 JB |
5201 | } |
5202 | ||
15e47304 | 5203 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, |
61fa713c HS |
5204 | int flags, struct net_device *dev, |
5205 | struct survey_info *survey) | |
5206 | { | |
5207 | void *hdr; | |
5208 | struct nlattr *infoattr; | |
5209 | ||
15e47304 | 5210 | hdr = nl80211hdr_put(msg, portid, seq, flags, |
61fa713c HS |
5211 | NL80211_CMD_NEW_SURVEY_RESULTS); |
5212 | if (!hdr) | |
5213 | return -ENOMEM; | |
5214 | ||
9360ffd1 DM |
5215 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
5216 | goto nla_put_failure; | |
61fa713c HS |
5217 | |
5218 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
5219 | if (!infoattr) | |
5220 | goto nla_put_failure; | |
5221 | ||
9360ffd1 DM |
5222 | if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, |
5223 | survey->channel->center_freq)) | |
5224 | goto nla_put_failure; | |
5225 | ||
5226 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
5227 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
5228 | goto nla_put_failure; | |
5229 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
5230 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
5231 | goto nla_put_failure; | |
5232 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) && | |
5233 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
5234 | survey->channel_time)) | |
5235 | goto nla_put_failure; | |
5236 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) && | |
5237 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
5238 | survey->channel_time_busy)) | |
5239 | goto nla_put_failure; | |
5240 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) && | |
5241 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
5242 | survey->channel_time_ext_busy)) | |
5243 | goto nla_put_failure; | |
5244 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) && | |
5245 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
5246 | survey->channel_time_rx)) | |
5247 | goto nla_put_failure; | |
5248 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) && | |
5249 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
5250 | survey->channel_time_tx)) | |
5251 | goto nla_put_failure; | |
61fa713c HS |
5252 | |
5253 | nla_nest_end(msg, infoattr); | |
5254 | ||
5255 | return genlmsg_end(msg, hdr); | |
5256 | ||
5257 | nla_put_failure: | |
5258 | genlmsg_cancel(msg, hdr); | |
5259 | return -EMSGSIZE; | |
5260 | } | |
5261 | ||
5262 | static int nl80211_dump_survey(struct sk_buff *skb, | |
5263 | struct netlink_callback *cb) | |
5264 | { | |
5265 | struct survey_info survey; | |
5266 | struct cfg80211_registered_device *dev; | |
5267 | struct net_device *netdev; | |
61fa713c HS |
5268 | int survey_idx = cb->args[1]; |
5269 | int res; | |
5270 | ||
67748893 JB |
5271 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
5272 | if (res) | |
5273 | return res; | |
61fa713c HS |
5274 | |
5275 | if (!dev->ops->dump_survey) { | |
5276 | res = -EOPNOTSUPP; | |
5277 | goto out_err; | |
5278 | } | |
5279 | ||
5280 | while (1) { | |
180cdc79 LR |
5281 | struct ieee80211_channel *chan; |
5282 | ||
e35e4d28 | 5283 | res = rdev_dump_survey(dev, netdev, survey_idx, &survey); |
61fa713c HS |
5284 | if (res == -ENOENT) |
5285 | break; | |
5286 | if (res) | |
5287 | goto out_err; | |
5288 | ||
180cdc79 LR |
5289 | /* Survey without a channel doesn't make sense */ |
5290 | if (!survey.channel) { | |
5291 | res = -EINVAL; | |
5292 | goto out; | |
5293 | } | |
5294 | ||
5295 | chan = ieee80211_get_channel(&dev->wiphy, | |
5296 | survey.channel->center_freq); | |
5297 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { | |
5298 | survey_idx++; | |
5299 | continue; | |
5300 | } | |
5301 | ||
61fa713c | 5302 | if (nl80211_send_survey(skb, |
15e47304 | 5303 | NETLINK_CB(cb->skb).portid, |
61fa713c HS |
5304 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
5305 | netdev, | |
5306 | &survey) < 0) | |
5307 | goto out; | |
5308 | survey_idx++; | |
5309 | } | |
5310 | ||
5311 | out: | |
5312 | cb->args[1] = survey_idx; | |
5313 | res = skb->len; | |
5314 | out_err: | |
67748893 | 5315 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
5316 | return res; |
5317 | } | |
5318 | ||
b23aa676 SO |
5319 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
5320 | { | |
5321 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
5322 | NL80211_WPA_VERSION_2)); | |
5323 | } | |
5324 | ||
636a5d36 JM |
5325 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
5326 | { | |
4c476991 JB |
5327 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5328 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5329 | struct ieee80211_channel *chan; |
e39e5b5e JM |
5330 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; |
5331 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
19957bb3 | 5332 | enum nl80211_auth_type auth_type; |
fffd0934 | 5333 | struct key_parse key; |
d5cdfacb | 5334 | bool local_state_change; |
636a5d36 | 5335 | |
f4a11bb0 JB |
5336 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5337 | return -EINVAL; | |
5338 | ||
5339 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5340 | return -EINVAL; | |
5341 | ||
1778092e JM |
5342 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
5343 | return -EINVAL; | |
5344 | ||
19957bb3 JB |
5345 | if (!info->attrs[NL80211_ATTR_SSID]) |
5346 | return -EINVAL; | |
5347 | ||
5348 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
5349 | return -EINVAL; | |
5350 | ||
fffd0934 JB |
5351 | err = nl80211_parse_key(info, &key); |
5352 | if (err) | |
5353 | return err; | |
5354 | ||
5355 | if (key.idx >= 0) { | |
e31b8213 JB |
5356 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
5357 | return -EINVAL; | |
fffd0934 JB |
5358 | if (!key.p.key || !key.p.key_len) |
5359 | return -EINVAL; | |
5360 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
5361 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
5362 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
5363 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
5364 | return -EINVAL; | |
5365 | if (key.idx > 4) | |
5366 | return -EINVAL; | |
5367 | } else { | |
5368 | key.p.key_len = 0; | |
5369 | key.p.key = NULL; | |
5370 | } | |
5371 | ||
afea0b7a JB |
5372 | if (key.idx >= 0) { |
5373 | int i; | |
5374 | bool ok = false; | |
5375 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
5376 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
5377 | ok = true; | |
5378 | break; | |
5379 | } | |
5380 | } | |
4c476991 JB |
5381 | if (!ok) |
5382 | return -EINVAL; | |
afea0b7a JB |
5383 | } |
5384 | ||
4c476991 JB |
5385 | if (!rdev->ops->auth) |
5386 | return -EOPNOTSUPP; | |
636a5d36 | 5387 | |
074ac8df | 5388 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5389 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5390 | return -EOPNOTSUPP; | |
eec60b03 | 5391 | |
19957bb3 | 5392 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 5393 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 5394 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
5395 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
5396 | return -EINVAL; | |
636a5d36 | 5397 | |
19957bb3 JB |
5398 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
5399 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
5400 | |
5401 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5402 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5403 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5404 | } |
5405 | ||
19957bb3 | 5406 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
e39e5b5e | 5407 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
4c476991 | 5408 | return -EINVAL; |
636a5d36 | 5409 | |
e39e5b5e JM |
5410 | if (auth_type == NL80211_AUTHTYPE_SAE && |
5411 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
5412 | return -EINVAL; | |
5413 | ||
5414 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
5415 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
5416 | return -EINVAL; | |
5417 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5418 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5419 | /* need to include at least Auth Transaction and Status Code */ | |
5420 | if (sae_data_len < 4) | |
5421 | return -EINVAL; | |
5422 | } | |
5423 | ||
d5cdfacb JM |
5424 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5425 | ||
95de817b JB |
5426 | /* |
5427 | * Since we no longer track auth state, ignore | |
5428 | * requests to only change local state. | |
5429 | */ | |
5430 | if (local_state_change) | |
5431 | return 0; | |
5432 | ||
4c476991 JB |
5433 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
5434 | ssid, ssid_len, ie, ie_len, | |
e39e5b5e JM |
5435 | key.p.key, key.p.key_len, key.idx, |
5436 | sae_data, sae_data_len); | |
636a5d36 JM |
5437 | } |
5438 | ||
c0692b8f JB |
5439 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
5440 | struct genl_info *info, | |
3dc27d25 JB |
5441 | struct cfg80211_crypto_settings *settings, |
5442 | int cipher_limit) | |
b23aa676 | 5443 | { |
c0b2bbd8 JB |
5444 | memset(settings, 0, sizeof(*settings)); |
5445 | ||
b23aa676 SO |
5446 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
5447 | ||
c0692b8f JB |
5448 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
5449 | u16 proto; | |
5450 | proto = nla_get_u16( | |
5451 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
5452 | settings->control_port_ethertype = cpu_to_be16(proto); | |
5453 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
5454 | proto != ETH_P_PAE) | |
5455 | return -EINVAL; | |
5456 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
5457 | settings->control_port_no_encrypt = true; | |
5458 | } else | |
5459 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
5460 | ||
b23aa676 SO |
5461 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
5462 | void *data; | |
5463 | int len, i; | |
5464 | ||
5465 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5466 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5467 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
5468 | ||
5469 | if (len % sizeof(u32)) | |
5470 | return -EINVAL; | |
5471 | ||
3dc27d25 | 5472 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
5473 | return -EINVAL; |
5474 | ||
5475 | memcpy(settings->ciphers_pairwise, data, len); | |
5476 | ||
5477 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
5478 | if (!cfg80211_supported_cipher_suite( |
5479 | &rdev->wiphy, | |
b23aa676 SO |
5480 | settings->ciphers_pairwise[i])) |
5481 | return -EINVAL; | |
5482 | } | |
5483 | ||
5484 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
5485 | settings->cipher_group = | |
5486 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
5487 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
5488 | settings->cipher_group)) | |
b23aa676 SO |
5489 | return -EINVAL; |
5490 | } | |
5491 | ||
5492 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
5493 | settings->wpa_versions = | |
5494 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
5495 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
5496 | return -EINVAL; | |
5497 | } | |
5498 | ||
5499 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
5500 | void *data; | |
6d30240e | 5501 | int len; |
b23aa676 SO |
5502 | |
5503 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5504 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5505 | settings->n_akm_suites = len / sizeof(u32); | |
5506 | ||
5507 | if (len % sizeof(u32)) | |
5508 | return -EINVAL; | |
5509 | ||
1b9ca027 JM |
5510 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
5511 | return -EINVAL; | |
5512 | ||
b23aa676 | 5513 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
5514 | } |
5515 | ||
5516 | return 0; | |
5517 | } | |
5518 | ||
636a5d36 JM |
5519 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
5520 | { | |
4c476991 JB |
5521 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5522 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5523 | struct cfg80211_crypto_settings crypto; |
f444de05 | 5524 | struct ieee80211_channel *chan; |
3e5d7649 | 5525 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
5526 | int err, ssid_len, ie_len = 0; |
5527 | bool use_mfp = false; | |
7e7c8926 BG |
5528 | u32 flags = 0; |
5529 | struct ieee80211_ht_cap *ht_capa = NULL; | |
5530 | struct ieee80211_ht_cap *ht_capa_mask = NULL; | |
636a5d36 | 5531 | |
f4a11bb0 JB |
5532 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5533 | return -EINVAL; | |
5534 | ||
5535 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
5536 | !info->attrs[NL80211_ATTR_SSID] || |
5537 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
5538 | return -EINVAL; |
5539 | ||
4c476991 JB |
5540 | if (!rdev->ops->assoc) |
5541 | return -EOPNOTSUPP; | |
636a5d36 | 5542 | |
074ac8df | 5543 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5544 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5545 | return -EOPNOTSUPP; | |
eec60b03 | 5546 | |
19957bb3 | 5547 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5548 | |
19957bb3 JB |
5549 | chan = ieee80211_get_channel(&rdev->wiphy, |
5550 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
5551 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
5552 | return -EINVAL; | |
636a5d36 | 5553 | |
19957bb3 JB |
5554 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
5555 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
5556 | |
5557 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5558 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5559 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5560 | } |
5561 | ||
dc6382ce | 5562 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 5563 | enum nl80211_mfp mfp = |
dc6382ce | 5564 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 5565 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 5566 | use_mfp = true; |
4c476991 JB |
5567 | else if (mfp != NL80211_MFP_NO) |
5568 | return -EINVAL; | |
dc6382ce JM |
5569 | } |
5570 | ||
3e5d7649 JB |
5571 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
5572 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
5573 | ||
7e7c8926 BG |
5574 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
5575 | flags |= ASSOC_REQ_DISABLE_HT; | |
5576 | ||
5577 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5578 | ht_capa_mask = | |
5579 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]); | |
5580 | ||
5581 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
5582 | if (!ht_capa_mask) | |
5583 | return -EINVAL; | |
5584 | ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5585 | } | |
5586 | ||
c0692b8f | 5587 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 5588 | if (!err) |
3e5d7649 JB |
5589 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
5590 | ssid, ssid_len, ie, ie_len, use_mfp, | |
7e7c8926 BG |
5591 | &crypto, flags, ht_capa, |
5592 | ht_capa_mask); | |
636a5d36 | 5593 | |
636a5d36 JM |
5594 | return err; |
5595 | } | |
5596 | ||
5597 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
5598 | { | |
4c476991 JB |
5599 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5600 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5601 | const u8 *ie = NULL, *bssid; |
4c476991 | 5602 | int ie_len = 0; |
19957bb3 | 5603 | u16 reason_code; |
d5cdfacb | 5604 | bool local_state_change; |
636a5d36 | 5605 | |
f4a11bb0 JB |
5606 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5607 | return -EINVAL; | |
5608 | ||
5609 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5610 | return -EINVAL; | |
5611 | ||
5612 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5613 | return -EINVAL; | |
5614 | ||
4c476991 JB |
5615 | if (!rdev->ops->deauth) |
5616 | return -EOPNOTSUPP; | |
636a5d36 | 5617 | |
074ac8df | 5618 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5619 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5620 | return -EOPNOTSUPP; | |
eec60b03 | 5621 | |
19957bb3 | 5622 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5623 | |
19957bb3 JB |
5624 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
5625 | if (reason_code == 0) { | |
f4a11bb0 | 5626 | /* Reason Code 0 is reserved */ |
4c476991 | 5627 | return -EINVAL; |
255e737e | 5628 | } |
636a5d36 JM |
5629 | |
5630 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5631 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5632 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5633 | } |
5634 | ||
d5cdfacb JM |
5635 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5636 | ||
4c476991 JB |
5637 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
5638 | local_state_change); | |
636a5d36 JM |
5639 | } |
5640 | ||
5641 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
5642 | { | |
4c476991 JB |
5643 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5644 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5645 | const u8 *ie = NULL, *bssid; |
4c476991 | 5646 | int ie_len = 0; |
19957bb3 | 5647 | u16 reason_code; |
d5cdfacb | 5648 | bool local_state_change; |
636a5d36 | 5649 | |
f4a11bb0 JB |
5650 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5651 | return -EINVAL; | |
5652 | ||
5653 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5654 | return -EINVAL; | |
5655 | ||
5656 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5657 | return -EINVAL; | |
5658 | ||
4c476991 JB |
5659 | if (!rdev->ops->disassoc) |
5660 | return -EOPNOTSUPP; | |
636a5d36 | 5661 | |
074ac8df | 5662 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5663 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5664 | return -EOPNOTSUPP; | |
eec60b03 | 5665 | |
19957bb3 | 5666 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5667 | |
19957bb3 JB |
5668 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
5669 | if (reason_code == 0) { | |
f4a11bb0 | 5670 | /* Reason Code 0 is reserved */ |
4c476991 | 5671 | return -EINVAL; |
255e737e | 5672 | } |
636a5d36 JM |
5673 | |
5674 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5675 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5676 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5677 | } |
5678 | ||
d5cdfacb JM |
5679 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5680 | ||
4c476991 JB |
5681 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
5682 | local_state_change); | |
636a5d36 JM |
5683 | } |
5684 | ||
dd5b4cc7 FF |
5685 | static bool |
5686 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
5687 | int mcast_rate[IEEE80211_NUM_BANDS], | |
5688 | int rateval) | |
5689 | { | |
5690 | struct wiphy *wiphy = &rdev->wiphy; | |
5691 | bool found = false; | |
5692 | int band, i; | |
5693 | ||
5694 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
5695 | struct ieee80211_supported_band *sband; | |
5696 | ||
5697 | sband = wiphy->bands[band]; | |
5698 | if (!sband) | |
5699 | continue; | |
5700 | ||
5701 | for (i = 0; i < sband->n_bitrates; i++) { | |
5702 | if (sband->bitrates[i].bitrate == rateval) { | |
5703 | mcast_rate[band] = i + 1; | |
5704 | found = true; | |
5705 | break; | |
5706 | } | |
5707 | } | |
5708 | } | |
5709 | ||
5710 | return found; | |
5711 | } | |
5712 | ||
04a773ad JB |
5713 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
5714 | { | |
4c476991 JB |
5715 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5716 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
5717 | struct cfg80211_ibss_params ibss; |
5718 | struct wiphy *wiphy; | |
fffd0934 | 5719 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
5720 | int err; |
5721 | ||
8e30bc55 JB |
5722 | memset(&ibss, 0, sizeof(ibss)); |
5723 | ||
04a773ad JB |
5724 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5725 | return -EINVAL; | |
5726 | ||
683b6d3b | 5727 | if (!info->attrs[NL80211_ATTR_SSID] || |
04a773ad JB |
5728 | !nla_len(info->attrs[NL80211_ATTR_SSID])) |
5729 | return -EINVAL; | |
5730 | ||
8e30bc55 JB |
5731 | ibss.beacon_interval = 100; |
5732 | ||
5733 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
5734 | ibss.beacon_interval = | |
5735 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
5736 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
5737 | return -EINVAL; | |
5738 | } | |
5739 | ||
4c476991 JB |
5740 | if (!rdev->ops->join_ibss) |
5741 | return -EOPNOTSUPP; | |
04a773ad | 5742 | |
4c476991 JB |
5743 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
5744 | return -EOPNOTSUPP; | |
04a773ad | 5745 | |
79c97e97 | 5746 | wiphy = &rdev->wiphy; |
04a773ad | 5747 | |
39193498 | 5748 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 5749 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
5750 | |
5751 | if (!is_valid_ether_addr(ibss.bssid)) | |
5752 | return -EINVAL; | |
5753 | } | |
04a773ad JB |
5754 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
5755 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5756 | ||
5757 | if (info->attrs[NL80211_ATTR_IE]) { | |
5758 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5759 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5760 | } | |
5761 | ||
683b6d3b JB |
5762 | err = nl80211_parse_chandef(rdev, info, &ibss.chandef); |
5763 | if (err) | |
5764 | return err; | |
04a773ad | 5765 | |
683b6d3b | 5766 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef)) |
54858ee5 AS |
5767 | return -EINVAL; |
5768 | ||
db9c64cf JB |
5769 | if (ibss.chandef.width > NL80211_CHAN_WIDTH_40) |
5770 | return -EINVAL; | |
5771 | if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT && | |
5772 | !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)) | |
c04d6150 | 5773 | return -EINVAL; |
db9c64cf | 5774 | |
04a773ad | 5775 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
5776 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
5777 | ||
fbd2c8dc TP |
5778 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
5779 | u8 *rates = | |
5780 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5781 | int n_rates = | |
5782 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5783 | struct ieee80211_supported_band *sband = | |
683b6d3b | 5784 | wiphy->bands[ibss.chandef.chan->band]; |
fbd2c8dc | 5785 | |
34850ab2 JB |
5786 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
5787 | &ibss.basic_rates); | |
5788 | if (err) | |
5789 | return err; | |
fbd2c8dc | 5790 | } |
dd5b4cc7 FF |
5791 | |
5792 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
5793 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
5794 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
5795 | return -EINVAL; | |
fbd2c8dc | 5796 | |
4c476991 | 5797 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
de7044ee SM |
5798 | bool no_ht = false; |
5799 | ||
4c476991 | 5800 | connkeys = nl80211_parse_connkeys(rdev, |
de7044ee SM |
5801 | info->attrs[NL80211_ATTR_KEYS], |
5802 | &no_ht); | |
4c476991 JB |
5803 | if (IS_ERR(connkeys)) |
5804 | return PTR_ERR(connkeys); | |
de7044ee | 5805 | |
3d9d1d66 JB |
5806 | if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) && |
5807 | no_ht) { | |
de7044ee SM |
5808 | kfree(connkeys); |
5809 | return -EINVAL; | |
5810 | } | |
4c476991 | 5811 | } |
04a773ad | 5812 | |
267335d6 AQ |
5813 | ibss.control_port = |
5814 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
5815 | ||
4c476991 | 5816 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
5817 | if (err) |
5818 | kfree(connkeys); | |
04a773ad JB |
5819 | return err; |
5820 | } | |
5821 | ||
5822 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
5823 | { | |
4c476991 JB |
5824 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5825 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 5826 | |
4c476991 JB |
5827 | if (!rdev->ops->leave_ibss) |
5828 | return -EOPNOTSUPP; | |
04a773ad | 5829 | |
4c476991 JB |
5830 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
5831 | return -EOPNOTSUPP; | |
04a773ad | 5832 | |
4c476991 | 5833 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
5834 | } |
5835 | ||
f4e583c8 AQ |
5836 | static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info) |
5837 | { | |
5838 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5839 | struct net_device *dev = info->user_ptr[1]; | |
5840 | int mcast_rate[IEEE80211_NUM_BANDS]; | |
5841 | u32 nla_rate; | |
5842 | int err; | |
5843 | ||
5844 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
5845 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
5846 | return -EOPNOTSUPP; | |
5847 | ||
5848 | if (!rdev->ops->set_mcast_rate) | |
5849 | return -EOPNOTSUPP; | |
5850 | ||
5851 | memset(mcast_rate, 0, sizeof(mcast_rate)); | |
5852 | ||
5853 | if (!info->attrs[NL80211_ATTR_MCAST_RATE]) | |
5854 | return -EINVAL; | |
5855 | ||
5856 | nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]); | |
5857 | if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate)) | |
5858 | return -EINVAL; | |
5859 | ||
5860 | err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate); | |
5861 | ||
5862 | return err; | |
5863 | } | |
5864 | ||
5865 | ||
aff89a9b JB |
5866 | #ifdef CONFIG_NL80211_TESTMODE |
5867 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
5868 | .name = "testmode", | |
5869 | }; | |
5870 | ||
5871 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
5872 | { | |
4c476991 | 5873 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
5874 | int err; |
5875 | ||
5876 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
5877 | return -EINVAL; | |
5878 | ||
aff89a9b JB |
5879 | err = -EOPNOTSUPP; |
5880 | if (rdev->ops->testmode_cmd) { | |
5881 | rdev->testmode_info = info; | |
e35e4d28 | 5882 | err = rdev_testmode_cmd(rdev, |
aff89a9b JB |
5883 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), |
5884 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
5885 | rdev->testmode_info = NULL; | |
5886 | } | |
5887 | ||
aff89a9b JB |
5888 | return err; |
5889 | } | |
5890 | ||
71063f0e WYG |
5891 | static int nl80211_testmode_dump(struct sk_buff *skb, |
5892 | struct netlink_callback *cb) | |
5893 | { | |
00918d33 | 5894 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
5895 | int err; |
5896 | long phy_idx; | |
5897 | void *data = NULL; | |
5898 | int data_len = 0; | |
5899 | ||
5900 | if (cb->args[0]) { | |
5901 | /* | |
5902 | * 0 is a valid index, but not valid for args[0], | |
5903 | * so we need to offset by 1. | |
5904 | */ | |
5905 | phy_idx = cb->args[0] - 1; | |
5906 | } else { | |
5907 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
5908 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
5909 | nl80211_policy); | |
5910 | if (err) | |
5911 | return err; | |
00918d33 | 5912 | |
2bd7e35d JB |
5913 | mutex_lock(&cfg80211_mutex); |
5914 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), | |
5915 | nl80211_fam.attrbuf); | |
5916 | if (IS_ERR(rdev)) { | |
5917 | mutex_unlock(&cfg80211_mutex); | |
5918 | return PTR_ERR(rdev); | |
00918d33 | 5919 | } |
2bd7e35d JB |
5920 | phy_idx = rdev->wiphy_idx; |
5921 | rdev = NULL; | |
5922 | mutex_unlock(&cfg80211_mutex); | |
5923 | ||
71063f0e WYG |
5924 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
5925 | cb->args[1] = | |
5926 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
5927 | } | |
5928 | ||
5929 | if (cb->args[1]) { | |
5930 | data = nla_data((void *)cb->args[1]); | |
5931 | data_len = nla_len((void *)cb->args[1]); | |
5932 | } | |
5933 | ||
5934 | mutex_lock(&cfg80211_mutex); | |
00918d33 JB |
5935 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
5936 | if (!rdev) { | |
71063f0e WYG |
5937 | mutex_unlock(&cfg80211_mutex); |
5938 | return -ENOENT; | |
5939 | } | |
00918d33 | 5940 | cfg80211_lock_rdev(rdev); |
71063f0e WYG |
5941 | mutex_unlock(&cfg80211_mutex); |
5942 | ||
00918d33 | 5943 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
5944 | err = -EOPNOTSUPP; |
5945 | goto out_err; | |
5946 | } | |
5947 | ||
5948 | while (1) { | |
15e47304 | 5949 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
71063f0e WYG |
5950 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
5951 | NL80211_CMD_TESTMODE); | |
5952 | struct nlattr *tmdata; | |
5953 | ||
9360ffd1 | 5954 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
71063f0e WYG |
5955 | genlmsg_cancel(skb, hdr); |
5956 | break; | |
5957 | } | |
5958 | ||
5959 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
5960 | if (!tmdata) { | |
5961 | genlmsg_cancel(skb, hdr); | |
5962 | break; | |
5963 | } | |
e35e4d28 | 5964 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); |
71063f0e WYG |
5965 | nla_nest_end(skb, tmdata); |
5966 | ||
5967 | if (err == -ENOBUFS || err == -ENOENT) { | |
5968 | genlmsg_cancel(skb, hdr); | |
5969 | break; | |
5970 | } else if (err) { | |
5971 | genlmsg_cancel(skb, hdr); | |
5972 | goto out_err; | |
5973 | } | |
5974 | ||
5975 | genlmsg_end(skb, hdr); | |
5976 | } | |
5977 | ||
5978 | err = skb->len; | |
5979 | /* see above */ | |
5980 | cb->args[0] = phy_idx + 1; | |
5981 | out_err: | |
00918d33 | 5982 | cfg80211_unlock_rdev(rdev); |
71063f0e WYG |
5983 | return err; |
5984 | } | |
5985 | ||
aff89a9b JB |
5986 | static struct sk_buff * |
5987 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
15e47304 | 5988 | int approxlen, u32 portid, u32 seq, gfp_t gfp) |
aff89a9b JB |
5989 | { |
5990 | struct sk_buff *skb; | |
5991 | void *hdr; | |
5992 | struct nlattr *data; | |
5993 | ||
5994 | skb = nlmsg_new(approxlen + 100, gfp); | |
5995 | if (!skb) | |
5996 | return NULL; | |
5997 | ||
15e47304 | 5998 | hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE); |
aff89a9b JB |
5999 | if (!hdr) { |
6000 | kfree_skb(skb); | |
6001 | return NULL; | |
6002 | } | |
6003 | ||
9360ffd1 DM |
6004 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
6005 | goto nla_put_failure; | |
aff89a9b JB |
6006 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); |
6007 | ||
6008 | ((void **)skb->cb)[0] = rdev; | |
6009 | ((void **)skb->cb)[1] = hdr; | |
6010 | ((void **)skb->cb)[2] = data; | |
6011 | ||
6012 | return skb; | |
6013 | ||
6014 | nla_put_failure: | |
6015 | kfree_skb(skb); | |
6016 | return NULL; | |
6017 | } | |
6018 | ||
6019 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
6020 | int approxlen) | |
6021 | { | |
6022 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
6023 | ||
6024 | if (WARN_ON(!rdev->testmode_info)) | |
6025 | return NULL; | |
6026 | ||
6027 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
15e47304 | 6028 | rdev->testmode_info->snd_portid, |
aff89a9b JB |
6029 | rdev->testmode_info->snd_seq, |
6030 | GFP_KERNEL); | |
6031 | } | |
6032 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
6033 | ||
6034 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
6035 | { | |
6036 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
6037 | void *hdr = ((void **)skb->cb)[1]; | |
6038 | struct nlattr *data = ((void **)skb->cb)[2]; | |
6039 | ||
6040 | if (WARN_ON(!rdev->testmode_info)) { | |
6041 | kfree_skb(skb); | |
6042 | return -EINVAL; | |
6043 | } | |
6044 | ||
6045 | nla_nest_end(skb, data); | |
6046 | genlmsg_end(skb, hdr); | |
6047 | return genlmsg_reply(skb, rdev->testmode_info); | |
6048 | } | |
6049 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
6050 | ||
6051 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
6052 | int approxlen, gfp_t gfp) | |
6053 | { | |
6054 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
6055 | ||
6056 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
6057 | } | |
6058 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
6059 | ||
6060 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
6061 | { | |
6062 | void *hdr = ((void **)skb->cb)[1]; | |
6063 | struct nlattr *data = ((void **)skb->cb)[2]; | |
6064 | ||
6065 | nla_nest_end(skb, data); | |
6066 | genlmsg_end(skb, hdr); | |
6067 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
6068 | } | |
6069 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
6070 | #endif | |
6071 | ||
b23aa676 SO |
6072 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
6073 | { | |
4c476991 JB |
6074 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6075 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
6076 | struct cfg80211_connect_params connect; |
6077 | struct wiphy *wiphy; | |
fffd0934 | 6078 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
6079 | int err; |
6080 | ||
6081 | memset(&connect, 0, sizeof(connect)); | |
6082 | ||
6083 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
6084 | return -EINVAL; | |
6085 | ||
6086 | if (!info->attrs[NL80211_ATTR_SSID] || | |
6087 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
6088 | return -EINVAL; | |
6089 | ||
6090 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
6091 | connect.auth_type = | |
6092 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
6093 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
6094 | NL80211_CMD_CONNECT)) | |
b23aa676 SO |
6095 | return -EINVAL; |
6096 | } else | |
6097 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
6098 | ||
6099 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
6100 | ||
c0692b8f | 6101 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 6102 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
6103 | if (err) |
6104 | return err; | |
b23aa676 | 6105 | |
074ac8df | 6106 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6107 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6108 | return -EOPNOTSUPP; | |
b23aa676 | 6109 | |
79c97e97 | 6110 | wiphy = &rdev->wiphy; |
b23aa676 | 6111 | |
4486ea98 BS |
6112 | connect.bg_scan_period = -1; |
6113 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
6114 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
6115 | connect.bg_scan_period = | |
6116 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
6117 | } | |
6118 | ||
b23aa676 SO |
6119 | if (info->attrs[NL80211_ATTR_MAC]) |
6120 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6121 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
6122 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
6123 | ||
6124 | if (info->attrs[NL80211_ATTR_IE]) { | |
6125 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
6126 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
6127 | } | |
6128 | ||
cee00a95 JM |
6129 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
6130 | connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
6131 | if (connect.mfp != NL80211_MFP_REQUIRED && | |
6132 | connect.mfp != NL80211_MFP_NO) | |
6133 | return -EINVAL; | |
6134 | } else { | |
6135 | connect.mfp = NL80211_MFP_NO; | |
6136 | } | |
6137 | ||
b23aa676 SO |
6138 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
6139 | connect.channel = | |
6140 | ieee80211_get_channel(wiphy, | |
6141 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
6142 | if (!connect.channel || | |
4c476991 JB |
6143 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
6144 | return -EINVAL; | |
b23aa676 SO |
6145 | } |
6146 | ||
fffd0934 JB |
6147 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
6148 | connkeys = nl80211_parse_connkeys(rdev, | |
de7044ee | 6149 | info->attrs[NL80211_ATTR_KEYS], NULL); |
4c476991 JB |
6150 | if (IS_ERR(connkeys)) |
6151 | return PTR_ERR(connkeys); | |
fffd0934 JB |
6152 | } |
6153 | ||
7e7c8926 BG |
6154 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
6155 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
6156 | ||
6157 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
6158 | memcpy(&connect.ht_capa_mask, | |
6159 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
6160 | sizeof(connect.ht_capa_mask)); | |
6161 | ||
6162 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
b4e4f47e WY |
6163 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
6164 | kfree(connkeys); | |
7e7c8926 | 6165 | return -EINVAL; |
b4e4f47e | 6166 | } |
7e7c8926 BG |
6167 | memcpy(&connect.ht_capa, |
6168 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
6169 | sizeof(connect.ht_capa)); | |
6170 | } | |
6171 | ||
fffd0934 | 6172 | err = cfg80211_connect(rdev, dev, &connect, connkeys); |
fffd0934 JB |
6173 | if (err) |
6174 | kfree(connkeys); | |
b23aa676 SO |
6175 | return err; |
6176 | } | |
6177 | ||
6178 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
6179 | { | |
4c476991 JB |
6180 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6181 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
6182 | u16 reason; |
6183 | ||
6184 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
6185 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
6186 | else | |
6187 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
6188 | ||
6189 | if (reason == 0) | |
6190 | return -EINVAL; | |
6191 | ||
074ac8df | 6192 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6193 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6194 | return -EOPNOTSUPP; | |
b23aa676 | 6195 | |
4c476991 | 6196 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
6197 | } |
6198 | ||
463d0183 JB |
6199 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
6200 | { | |
4c476991 | 6201 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
6202 | struct net *net; |
6203 | int err; | |
6204 | u32 pid; | |
6205 | ||
6206 | if (!info->attrs[NL80211_ATTR_PID]) | |
6207 | return -EINVAL; | |
6208 | ||
6209 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
6210 | ||
463d0183 | 6211 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
6212 | if (IS_ERR(net)) |
6213 | return PTR_ERR(net); | |
463d0183 JB |
6214 | |
6215 | err = 0; | |
6216 | ||
6217 | /* check if anything to do */ | |
4c476991 JB |
6218 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
6219 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 6220 | |
463d0183 | 6221 | put_net(net); |
463d0183 JB |
6222 | return err; |
6223 | } | |
6224 | ||
67fbb16b SO |
6225 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
6226 | { | |
4c476991 | 6227 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
6228 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
6229 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 6230 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
6231 | struct cfg80211_pmksa pmksa; |
6232 | ||
6233 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
6234 | ||
6235 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6236 | return -EINVAL; | |
6237 | ||
6238 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
6239 | return -EINVAL; | |
6240 | ||
67fbb16b SO |
6241 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
6242 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6243 | ||
074ac8df | 6244 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6245 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6246 | return -EOPNOTSUPP; | |
67fbb16b SO |
6247 | |
6248 | switch (info->genlhdr->cmd) { | |
6249 | case NL80211_CMD_SET_PMKSA: | |
6250 | rdev_ops = rdev->ops->set_pmksa; | |
6251 | break; | |
6252 | case NL80211_CMD_DEL_PMKSA: | |
6253 | rdev_ops = rdev->ops->del_pmksa; | |
6254 | break; | |
6255 | default: | |
6256 | WARN_ON(1); | |
6257 | break; | |
6258 | } | |
6259 | ||
4c476991 JB |
6260 | if (!rdev_ops) |
6261 | return -EOPNOTSUPP; | |
67fbb16b | 6262 | |
4c476991 | 6263 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
6264 | } |
6265 | ||
6266 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
6267 | { | |
4c476991 JB |
6268 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6269 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 6270 | |
074ac8df | 6271 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6272 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6273 | return -EOPNOTSUPP; | |
67fbb16b | 6274 | |
4c476991 JB |
6275 | if (!rdev->ops->flush_pmksa) |
6276 | return -EOPNOTSUPP; | |
67fbb16b | 6277 | |
e35e4d28 | 6278 | return rdev_flush_pmksa(rdev, dev); |
67fbb16b SO |
6279 | } |
6280 | ||
109086ce AN |
6281 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
6282 | { | |
6283 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6284 | struct net_device *dev = info->user_ptr[1]; | |
6285 | u8 action_code, dialog_token; | |
6286 | u16 status_code; | |
6287 | u8 *peer; | |
6288 | ||
6289 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
6290 | !rdev->ops->tdls_mgmt) | |
6291 | return -EOPNOTSUPP; | |
6292 | ||
6293 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
6294 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
6295 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
6296 | !info->attrs[NL80211_ATTR_IE] || | |
6297 | !info->attrs[NL80211_ATTR_MAC]) | |
6298 | return -EINVAL; | |
6299 | ||
6300 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6301 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
6302 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
6303 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
6304 | ||
e35e4d28 HG |
6305 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, |
6306 | dialog_token, status_code, | |
6307 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
6308 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
109086ce AN |
6309 | } |
6310 | ||
6311 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
6312 | { | |
6313 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6314 | struct net_device *dev = info->user_ptr[1]; | |
6315 | enum nl80211_tdls_operation operation; | |
6316 | u8 *peer; | |
6317 | ||
6318 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
6319 | !rdev->ops->tdls_oper) | |
6320 | return -EOPNOTSUPP; | |
6321 | ||
6322 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
6323 | !info->attrs[NL80211_ATTR_MAC]) | |
6324 | return -EINVAL; | |
6325 | ||
6326 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
6327 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6328 | ||
e35e4d28 | 6329 | return rdev_tdls_oper(rdev, dev, peer, operation); |
109086ce AN |
6330 | } |
6331 | ||
9588bbd5 JM |
6332 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
6333 | struct genl_info *info) | |
6334 | { | |
4c476991 | 6335 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6336 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 6337 | struct cfg80211_chan_def chandef; |
9588bbd5 JM |
6338 | struct sk_buff *msg; |
6339 | void *hdr; | |
6340 | u64 cookie; | |
683b6d3b | 6341 | u32 duration; |
9588bbd5 JM |
6342 | int err; |
6343 | ||
6344 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
6345 | !info->attrs[NL80211_ATTR_DURATION]) | |
6346 | return -EINVAL; | |
6347 | ||
6348 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
6349 | ||
ebf348fc JB |
6350 | if (!rdev->ops->remain_on_channel || |
6351 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
6352 | return -EOPNOTSUPP; | |
6353 | ||
9588bbd5 | 6354 | /* |
ebf348fc JB |
6355 | * We should be on that channel for at least a minimum amount of |
6356 | * time (10ms) but no longer than the driver supports. | |
9588bbd5 | 6357 | */ |
ebf348fc | 6358 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
a293911d | 6359 | duration > rdev->wiphy.max_remain_on_channel_duration) |
9588bbd5 JM |
6360 | return -EINVAL; |
6361 | ||
683b6d3b JB |
6362 | err = nl80211_parse_chandef(rdev, info, &chandef); |
6363 | if (err) | |
6364 | return err; | |
9588bbd5 JM |
6365 | |
6366 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
6367 | if (!msg) |
6368 | return -ENOMEM; | |
9588bbd5 | 6369 | |
15e47304 | 6370 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
9588bbd5 JM |
6371 | NL80211_CMD_REMAIN_ON_CHANNEL); |
6372 | ||
6373 | if (IS_ERR(hdr)) { | |
6374 | err = PTR_ERR(hdr); | |
6375 | goto free_msg; | |
6376 | } | |
6377 | ||
683b6d3b JB |
6378 | err = rdev_remain_on_channel(rdev, wdev, chandef.chan, |
6379 | duration, &cookie); | |
9588bbd5 JM |
6380 | |
6381 | if (err) | |
6382 | goto free_msg; | |
6383 | ||
9360ffd1 DM |
6384 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
6385 | goto nla_put_failure; | |
9588bbd5 JM |
6386 | |
6387 | genlmsg_end(msg, hdr); | |
4c476991 JB |
6388 | |
6389 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
6390 | |
6391 | nla_put_failure: | |
6392 | err = -ENOBUFS; | |
6393 | free_msg: | |
6394 | nlmsg_free(msg); | |
9588bbd5 JM |
6395 | return err; |
6396 | } | |
6397 | ||
6398 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
6399 | struct genl_info *info) | |
6400 | { | |
4c476991 | 6401 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6402 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 | 6403 | u64 cookie; |
9588bbd5 JM |
6404 | |
6405 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
6406 | return -EINVAL; | |
6407 | ||
4c476991 JB |
6408 | if (!rdev->ops->cancel_remain_on_channel) |
6409 | return -EOPNOTSUPP; | |
9588bbd5 | 6410 | |
9588bbd5 JM |
6411 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
6412 | ||
e35e4d28 | 6413 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); |
9588bbd5 JM |
6414 | } |
6415 | ||
13ae75b1 JM |
6416 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
6417 | u8 *rates, u8 rates_len) | |
6418 | { | |
6419 | u8 i; | |
6420 | u32 mask = 0; | |
6421 | ||
6422 | for (i = 0; i < rates_len; i++) { | |
6423 | int rate = (rates[i] & 0x7f) * 5; | |
6424 | int ridx; | |
6425 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
6426 | struct ieee80211_rate *srate = | |
6427 | &sband->bitrates[ridx]; | |
6428 | if (rate == srate->bitrate) { | |
6429 | mask |= 1 << ridx; | |
6430 | break; | |
6431 | } | |
6432 | } | |
6433 | if (ridx == sband->n_bitrates) | |
6434 | return 0; /* rate not found */ | |
6435 | } | |
6436 | ||
6437 | return mask; | |
6438 | } | |
6439 | ||
24db78c0 SW |
6440 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
6441 | u8 *rates, u8 rates_len, | |
6442 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
6443 | { | |
6444 | u8 i; | |
6445 | ||
6446 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
6447 | ||
6448 | for (i = 0; i < rates_len; i++) { | |
6449 | int ridx, rbit; | |
6450 | ||
6451 | ridx = rates[i] / 8; | |
6452 | rbit = BIT(rates[i] % 8); | |
6453 | ||
6454 | /* check validity */ | |
910570b5 | 6455 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
6456 | return false; |
6457 | ||
6458 | /* check availability */ | |
6459 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
6460 | mcs[ridx] |= rbit; | |
6461 | else | |
6462 | return false; | |
6463 | } | |
6464 | ||
6465 | return true; | |
6466 | } | |
6467 | ||
b54452b0 | 6468 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
6469 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
6470 | .len = NL80211_MAX_SUPP_RATES }, | |
24db78c0 SW |
6471 | [NL80211_TXRATE_MCS] = { .type = NLA_BINARY, |
6472 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
13ae75b1 JM |
6473 | }; |
6474 | ||
6475 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
6476 | struct genl_info *info) | |
6477 | { | |
6478 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 6479 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 6480 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
6481 | int rem, i; |
6482 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
6483 | struct nlattr *tx_rates; |
6484 | struct ieee80211_supported_band *sband; | |
6485 | ||
6486 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
6487 | return -EINVAL; | |
6488 | ||
4c476991 JB |
6489 | if (!rdev->ops->set_bitrate_mask) |
6490 | return -EOPNOTSUPP; | |
13ae75b1 JM |
6491 | |
6492 | memset(&mask, 0, sizeof(mask)); | |
6493 | /* Default to all rates enabled */ | |
6494 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
6495 | sband = rdev->wiphy.bands[i]; | |
6496 | mask.control[i].legacy = | |
6497 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
24db78c0 SW |
6498 | if (sband) |
6499 | memcpy(mask.control[i].mcs, | |
6500 | sband->ht_cap.mcs.rx_mask, | |
6501 | sizeof(mask.control[i].mcs)); | |
6502 | else | |
6503 | memset(mask.control[i].mcs, 0, | |
6504 | sizeof(mask.control[i].mcs)); | |
13ae75b1 JM |
6505 | } |
6506 | ||
6507 | /* | |
6508 | * The nested attribute uses enum nl80211_band as the index. This maps | |
6509 | * directly to the enum ieee80211_band values used in cfg80211. | |
6510 | */ | |
24db78c0 | 6511 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
13ae75b1 JM |
6512 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) |
6513 | { | |
6514 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
6515 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
6516 | return -EINVAL; | |
13ae75b1 | 6517 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
6518 | if (sband == NULL) |
6519 | return -EINVAL; | |
13ae75b1 JM |
6520 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
6521 | nla_len(tx_rates), nl80211_txattr_policy); | |
6522 | if (tb[NL80211_TXRATE_LEGACY]) { | |
6523 | mask.control[band].legacy = rateset_to_mask( | |
6524 | sband, | |
6525 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
6526 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
218d2e26 BS |
6527 | if ((mask.control[band].legacy == 0) && |
6528 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
6529 | return -EINVAL; | |
24db78c0 SW |
6530 | } |
6531 | if (tb[NL80211_TXRATE_MCS]) { | |
6532 | if (!ht_rateset_to_mask( | |
6533 | sband, | |
6534 | nla_data(tb[NL80211_TXRATE_MCS]), | |
6535 | nla_len(tb[NL80211_TXRATE_MCS]), | |
6536 | mask.control[band].mcs)) | |
6537 | return -EINVAL; | |
6538 | } | |
6539 | ||
6540 | if (mask.control[band].legacy == 0) { | |
6541 | /* don't allow empty legacy rates if HT | |
6542 | * is not even supported. */ | |
6543 | if (!rdev->wiphy.bands[band]->ht_cap.ht_supported) | |
6544 | return -EINVAL; | |
6545 | ||
6546 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
6547 | if (mask.control[band].mcs[i]) | |
6548 | break; | |
6549 | ||
6550 | /* legacy and mcs rates may not be both empty */ | |
6551 | if (i == IEEE80211_HT_MCS_MASK_LEN) | |
4c476991 | 6552 | return -EINVAL; |
13ae75b1 JM |
6553 | } |
6554 | } | |
6555 | ||
e35e4d28 | 6556 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); |
13ae75b1 JM |
6557 | } |
6558 | ||
2e161f78 | 6559 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 6560 | { |
4c476991 | 6561 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6562 | struct wireless_dev *wdev = info->user_ptr[1]; |
2e161f78 | 6563 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
6564 | |
6565 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
6566 | return -EINVAL; | |
6567 | ||
2e161f78 JB |
6568 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
6569 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 6570 | |
71bbc994 JB |
6571 | switch (wdev->iftype) { |
6572 | case NL80211_IFTYPE_STATION: | |
6573 | case NL80211_IFTYPE_ADHOC: | |
6574 | case NL80211_IFTYPE_P2P_CLIENT: | |
6575 | case NL80211_IFTYPE_AP: | |
6576 | case NL80211_IFTYPE_AP_VLAN: | |
6577 | case NL80211_IFTYPE_MESH_POINT: | |
6578 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6579 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6580 | break; |
6581 | default: | |
4c476991 | 6582 | return -EOPNOTSUPP; |
71bbc994 | 6583 | } |
026331c4 JM |
6584 | |
6585 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
6586 | if (!rdev->ops->mgmt_tx) |
6587 | return -EOPNOTSUPP; | |
026331c4 | 6588 | |
15e47304 | 6589 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
026331c4 JM |
6590 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
6591 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
6592 | } |
6593 | ||
2e161f78 | 6594 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 6595 | { |
4c476991 | 6596 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6597 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 6598 | struct cfg80211_chan_def chandef; |
026331c4 | 6599 | int err; |
d64d373f | 6600 | void *hdr = NULL; |
026331c4 | 6601 | u64 cookie; |
e247bd90 | 6602 | struct sk_buff *msg = NULL; |
f7ca38df | 6603 | unsigned int wait = 0; |
e247bd90 JB |
6604 | bool offchan, no_cck, dont_wait_for_ack; |
6605 | ||
6606 | dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; | |
026331c4 | 6607 | |
683b6d3b | 6608 | if (!info->attrs[NL80211_ATTR_FRAME]) |
026331c4 JM |
6609 | return -EINVAL; |
6610 | ||
4c476991 JB |
6611 | if (!rdev->ops->mgmt_tx) |
6612 | return -EOPNOTSUPP; | |
026331c4 | 6613 | |
71bbc994 JB |
6614 | switch (wdev->iftype) { |
6615 | case NL80211_IFTYPE_STATION: | |
6616 | case NL80211_IFTYPE_ADHOC: | |
6617 | case NL80211_IFTYPE_P2P_CLIENT: | |
6618 | case NL80211_IFTYPE_AP: | |
6619 | case NL80211_IFTYPE_AP_VLAN: | |
6620 | case NL80211_IFTYPE_MESH_POINT: | |
6621 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6622 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6623 | break; |
6624 | default: | |
4c476991 | 6625 | return -EOPNOTSUPP; |
71bbc994 | 6626 | } |
026331c4 | 6627 | |
f7ca38df | 6628 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 6629 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df JB |
6630 | return -EINVAL; |
6631 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
ebf348fc JB |
6632 | |
6633 | /* | |
6634 | * We should wait on the channel for at least a minimum amount | |
6635 | * of time (10ms) but no longer than the driver supports. | |
6636 | */ | |
6637 | if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
6638 | wait > rdev->wiphy.max_remain_on_channel_duration) | |
6639 | return -EINVAL; | |
6640 | ||
f7ca38df JB |
6641 | } |
6642 | ||
f7ca38df JB |
6643 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
6644 | ||
7c4ef712 JB |
6645 | if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
6646 | return -EINVAL; | |
6647 | ||
e9f935e3 RM |
6648 | no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
6649 | ||
683b6d3b JB |
6650 | err = nl80211_parse_chandef(rdev, info, &chandef); |
6651 | if (err) | |
6652 | return err; | |
026331c4 | 6653 | |
e247bd90 JB |
6654 | if (!dont_wait_for_ack) { |
6655 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6656 | if (!msg) | |
6657 | return -ENOMEM; | |
026331c4 | 6658 | |
15e47304 | 6659 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
e247bd90 | 6660 | NL80211_CMD_FRAME); |
026331c4 | 6661 | |
e247bd90 JB |
6662 | if (IS_ERR(hdr)) { |
6663 | err = PTR_ERR(hdr); | |
6664 | goto free_msg; | |
6665 | } | |
026331c4 | 6666 | } |
e247bd90 | 6667 | |
683b6d3b | 6668 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait, |
2e161f78 JB |
6669 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
6670 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
e247bd90 | 6671 | no_cck, dont_wait_for_ack, &cookie); |
026331c4 JM |
6672 | if (err) |
6673 | goto free_msg; | |
6674 | ||
e247bd90 | 6675 | if (msg) { |
9360ffd1 DM |
6676 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
6677 | goto nla_put_failure; | |
026331c4 | 6678 | |
e247bd90 JB |
6679 | genlmsg_end(msg, hdr); |
6680 | return genlmsg_reply(msg, info); | |
6681 | } | |
6682 | ||
6683 | return 0; | |
026331c4 JM |
6684 | |
6685 | nla_put_failure: | |
6686 | err = -ENOBUFS; | |
6687 | free_msg: | |
6688 | nlmsg_free(msg); | |
026331c4 JM |
6689 | return err; |
6690 | } | |
6691 | ||
f7ca38df JB |
6692 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
6693 | { | |
6694 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
71bbc994 | 6695 | struct wireless_dev *wdev = info->user_ptr[1]; |
f7ca38df JB |
6696 | u64 cookie; |
6697 | ||
6698 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
6699 | return -EINVAL; | |
6700 | ||
6701 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
6702 | return -EOPNOTSUPP; | |
6703 | ||
71bbc994 JB |
6704 | switch (wdev->iftype) { |
6705 | case NL80211_IFTYPE_STATION: | |
6706 | case NL80211_IFTYPE_ADHOC: | |
6707 | case NL80211_IFTYPE_P2P_CLIENT: | |
6708 | case NL80211_IFTYPE_AP: | |
6709 | case NL80211_IFTYPE_AP_VLAN: | |
6710 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6711 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6712 | break; |
6713 | default: | |
f7ca38df | 6714 | return -EOPNOTSUPP; |
71bbc994 | 6715 | } |
f7ca38df JB |
6716 | |
6717 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
6718 | ||
e35e4d28 | 6719 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); |
f7ca38df JB |
6720 | } |
6721 | ||
ffb9eb3d KV |
6722 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
6723 | { | |
4c476991 | 6724 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 6725 | struct wireless_dev *wdev; |
4c476991 | 6726 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
6727 | u8 ps_state; |
6728 | bool state; | |
6729 | int err; | |
6730 | ||
4c476991 JB |
6731 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
6732 | return -EINVAL; | |
ffb9eb3d KV |
6733 | |
6734 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
6735 | ||
4c476991 JB |
6736 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
6737 | return -EINVAL; | |
ffb9eb3d KV |
6738 | |
6739 | wdev = dev->ieee80211_ptr; | |
6740 | ||
4c476991 JB |
6741 | if (!rdev->ops->set_power_mgmt) |
6742 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
6743 | |
6744 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
6745 | ||
6746 | if (state == wdev->ps) | |
4c476991 | 6747 | return 0; |
ffb9eb3d | 6748 | |
e35e4d28 | 6749 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); |
4c476991 JB |
6750 | if (!err) |
6751 | wdev->ps = state; | |
ffb9eb3d KV |
6752 | return err; |
6753 | } | |
6754 | ||
6755 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
6756 | { | |
4c476991 | 6757 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
6758 | enum nl80211_ps_state ps_state; |
6759 | struct wireless_dev *wdev; | |
4c476991 | 6760 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
6761 | struct sk_buff *msg; |
6762 | void *hdr; | |
6763 | int err; | |
6764 | ||
ffb9eb3d KV |
6765 | wdev = dev->ieee80211_ptr; |
6766 | ||
4c476991 JB |
6767 | if (!rdev->ops->set_power_mgmt) |
6768 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
6769 | |
6770 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
6771 | if (!msg) |
6772 | return -ENOMEM; | |
ffb9eb3d | 6773 | |
15e47304 | 6774 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ffb9eb3d KV |
6775 | NL80211_CMD_GET_POWER_SAVE); |
6776 | if (!hdr) { | |
4c476991 | 6777 | err = -ENOBUFS; |
ffb9eb3d KV |
6778 | goto free_msg; |
6779 | } | |
6780 | ||
6781 | if (wdev->ps) | |
6782 | ps_state = NL80211_PS_ENABLED; | |
6783 | else | |
6784 | ps_state = NL80211_PS_DISABLED; | |
6785 | ||
9360ffd1 DM |
6786 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
6787 | goto nla_put_failure; | |
ffb9eb3d KV |
6788 | |
6789 | genlmsg_end(msg, hdr); | |
4c476991 | 6790 | return genlmsg_reply(msg, info); |
ffb9eb3d | 6791 | |
4c476991 | 6792 | nla_put_failure: |
ffb9eb3d | 6793 | err = -ENOBUFS; |
4c476991 | 6794 | free_msg: |
ffb9eb3d | 6795 | nlmsg_free(msg); |
ffb9eb3d KV |
6796 | return err; |
6797 | } | |
6798 | ||
d6dc1a38 JO |
6799 | static struct nla_policy |
6800 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
6801 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
6802 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
6803 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
84f10708 TP |
6804 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
6805 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
6806 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
d6dc1a38 JO |
6807 | }; |
6808 | ||
84f10708 | 6809 | static int nl80211_set_cqm_txe(struct genl_info *info, |
d9d8b019 | 6810 | u32 rate, u32 pkts, u32 intvl) |
84f10708 TP |
6811 | { |
6812 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6813 | struct wireless_dev *wdev; | |
6814 | struct net_device *dev = info->user_ptr[1]; | |
6815 | ||
d9d8b019 | 6816 | if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL) |
84f10708 TP |
6817 | return -EINVAL; |
6818 | ||
6819 | wdev = dev->ieee80211_ptr; | |
6820 | ||
6821 | if (!rdev->ops->set_cqm_txe_config) | |
6822 | return -EOPNOTSUPP; | |
6823 | ||
6824 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
6825 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
6826 | return -EOPNOTSUPP; | |
6827 | ||
e35e4d28 | 6828 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); |
84f10708 TP |
6829 | } |
6830 | ||
d6dc1a38 JO |
6831 | static int nl80211_set_cqm_rssi(struct genl_info *info, |
6832 | s32 threshold, u32 hysteresis) | |
6833 | { | |
4c476991 | 6834 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 6835 | struct wireless_dev *wdev; |
4c476991 | 6836 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
6837 | |
6838 | if (threshold > 0) | |
6839 | return -EINVAL; | |
6840 | ||
d6dc1a38 JO |
6841 | wdev = dev->ieee80211_ptr; |
6842 | ||
4c476991 JB |
6843 | if (!rdev->ops->set_cqm_rssi_config) |
6844 | return -EOPNOTSUPP; | |
d6dc1a38 | 6845 | |
074ac8df | 6846 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6847 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6848 | return -EOPNOTSUPP; | |
d6dc1a38 | 6849 | |
e35e4d28 | 6850 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); |
d6dc1a38 JO |
6851 | } |
6852 | ||
6853 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
6854 | { | |
6855 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
6856 | struct nlattr *cqm; | |
6857 | int err; | |
6858 | ||
6859 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
6860 | if (!cqm) { | |
6861 | err = -EINVAL; | |
6862 | goto out; | |
6863 | } | |
6864 | ||
6865 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
6866 | nl80211_attr_cqm_policy); | |
6867 | if (err) | |
6868 | goto out; | |
6869 | ||
6870 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
6871 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
6872 | s32 threshold; | |
6873 | u32 hysteresis; | |
6874 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
6875 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
6876 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
84f10708 TP |
6877 | } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] && |
6878 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
6879 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
6880 | u32 rate, pkts, intvl; | |
6881 | rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
6882 | pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
6883 | intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
6884 | err = nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
d6dc1a38 JO |
6885 | } else |
6886 | err = -EINVAL; | |
6887 | ||
6888 | out: | |
6889 | return err; | |
6890 | } | |
6891 | ||
29cbe68c JB |
6892 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
6893 | { | |
6894 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6895 | struct net_device *dev = info->user_ptr[1]; | |
6896 | struct mesh_config cfg; | |
c80d545d | 6897 | struct mesh_setup setup; |
29cbe68c JB |
6898 | int err; |
6899 | ||
6900 | /* start with default */ | |
6901 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 6902 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 6903 | |
24bdd9f4 | 6904 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 6905 | /* and parse parameters if given */ |
24bdd9f4 | 6906 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
6907 | if (err) |
6908 | return err; | |
6909 | } | |
6910 | ||
6911 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
6912 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
6913 | return -EINVAL; | |
6914 | ||
c80d545d JC |
6915 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
6916 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
6917 | ||
4bb62344 CYY |
6918 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
6919 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
6920 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
6921 | return -EINVAL; | |
6922 | ||
9bdbf04d MP |
6923 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
6924 | setup.beacon_interval = | |
6925 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
6926 | if (setup.beacon_interval < 10 || | |
6927 | setup.beacon_interval > 10000) | |
6928 | return -EINVAL; | |
6929 | } | |
6930 | ||
6931 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
6932 | setup.dtim_period = | |
6933 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
6934 | if (setup.dtim_period < 1 || setup.dtim_period > 100) | |
6935 | return -EINVAL; | |
6936 | } | |
6937 | ||
c80d545d JC |
6938 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
6939 | /* parse additional setup parameters if given */ | |
6940 | err = nl80211_parse_mesh_setup(info, &setup); | |
6941 | if (err) | |
6942 | return err; | |
6943 | } | |
6944 | ||
cc1d2806 | 6945 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
6946 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); |
6947 | if (err) | |
6948 | return err; | |
cc1d2806 JB |
6949 | } else { |
6950 | /* cfg80211_join_mesh() will sort it out */ | |
683b6d3b | 6951 | setup.chandef.chan = NULL; |
cc1d2806 JB |
6952 | } |
6953 | ||
c80d545d | 6954 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
29cbe68c JB |
6955 | } |
6956 | ||
6957 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
6958 | { | |
6959 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6960 | struct net_device *dev = info->user_ptr[1]; | |
6961 | ||
6962 | return cfg80211_leave_mesh(rdev, dev); | |
6963 | } | |
6964 | ||
dfb89c56 | 6965 | #ifdef CONFIG_PM |
bb92d199 AK |
6966 | static int nl80211_send_wowlan_patterns(struct sk_buff *msg, |
6967 | struct cfg80211_registered_device *rdev) | |
6968 | { | |
6969 | struct nlattr *nl_pats, *nl_pat; | |
6970 | int i, pat_len; | |
6971 | ||
6972 | if (!rdev->wowlan->n_patterns) | |
6973 | return 0; | |
6974 | ||
6975 | nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
6976 | if (!nl_pats) | |
6977 | return -ENOBUFS; | |
6978 | ||
6979 | for (i = 0; i < rdev->wowlan->n_patterns; i++) { | |
6980 | nl_pat = nla_nest_start(msg, i + 1); | |
6981 | if (!nl_pat) | |
6982 | return -ENOBUFS; | |
6983 | pat_len = rdev->wowlan->patterns[i].pattern_len; | |
6984 | if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK, | |
6985 | DIV_ROUND_UP(pat_len, 8), | |
6986 | rdev->wowlan->patterns[i].mask) || | |
6987 | nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN, | |
6988 | pat_len, rdev->wowlan->patterns[i].pattern) || | |
6989 | nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET, | |
6990 | rdev->wowlan->patterns[i].pkt_offset)) | |
6991 | return -ENOBUFS; | |
6992 | nla_nest_end(msg, nl_pat); | |
6993 | } | |
6994 | nla_nest_end(msg, nl_pats); | |
6995 | ||
6996 | return 0; | |
6997 | } | |
6998 | ||
2a0e047e JB |
6999 | static int nl80211_send_wowlan_tcp(struct sk_buff *msg, |
7000 | struct cfg80211_wowlan_tcp *tcp) | |
7001 | { | |
7002 | struct nlattr *nl_tcp; | |
7003 | ||
7004 | if (!tcp) | |
7005 | return 0; | |
7006 | ||
7007 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
7008 | if (!nl_tcp) | |
7009 | return -ENOBUFS; | |
7010 | ||
7011 | if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || | |
7012 | nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || | |
7013 | nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || | |
7014 | nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || | |
7015 | nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || | |
7016 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
7017 | tcp->payload_len, tcp->payload) || | |
7018 | nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
7019 | tcp->data_interval) || | |
7020 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
7021 | tcp->wake_len, tcp->wake_data) || | |
7022 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, | |
7023 | DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) | |
7024 | return -ENOBUFS; | |
7025 | ||
7026 | if (tcp->payload_seq.len && | |
7027 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, | |
7028 | sizeof(tcp->payload_seq), &tcp->payload_seq)) | |
7029 | return -ENOBUFS; | |
7030 | ||
7031 | if (tcp->payload_tok.len && | |
7032 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
7033 | sizeof(tcp->payload_tok) + tcp->tokens_size, | |
7034 | &tcp->payload_tok)) | |
7035 | return -ENOBUFS; | |
7036 | ||
7037 | return 0; | |
7038 | } | |
7039 | ||
ff1b6e69 JB |
7040 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
7041 | { | |
7042 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7043 | struct sk_buff *msg; | |
7044 | void *hdr; | |
2a0e047e | 7045 | u32 size = NLMSG_DEFAULT_SIZE; |
ff1b6e69 | 7046 | |
2a0e047e JB |
7047 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns && |
7048 | !rdev->wiphy.wowlan.tcp) | |
ff1b6e69 JB |
7049 | return -EOPNOTSUPP; |
7050 | ||
2a0e047e JB |
7051 | if (rdev->wowlan && rdev->wowlan->tcp) { |
7052 | /* adjust size to have room for all the data */ | |
7053 | size += rdev->wowlan->tcp->tokens_size + | |
7054 | rdev->wowlan->tcp->payload_len + | |
7055 | rdev->wowlan->tcp->wake_len + | |
7056 | rdev->wowlan->tcp->wake_len / 8; | |
7057 | } | |
7058 | ||
7059 | msg = nlmsg_new(size, GFP_KERNEL); | |
ff1b6e69 JB |
7060 | if (!msg) |
7061 | return -ENOMEM; | |
7062 | ||
15e47304 | 7063 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ff1b6e69 JB |
7064 | NL80211_CMD_GET_WOWLAN); |
7065 | if (!hdr) | |
7066 | goto nla_put_failure; | |
7067 | ||
7068 | if (rdev->wowlan) { | |
7069 | struct nlattr *nl_wowlan; | |
7070 | ||
7071 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
7072 | if (!nl_wowlan) | |
7073 | goto nla_put_failure; | |
7074 | ||
9360ffd1 DM |
7075 | if ((rdev->wowlan->any && |
7076 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
7077 | (rdev->wowlan->disconnect && | |
7078 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
7079 | (rdev->wowlan->magic_pkt && | |
7080 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
7081 | (rdev->wowlan->gtk_rekey_failure && | |
7082 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
7083 | (rdev->wowlan->eap_identity_req && | |
7084 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
7085 | (rdev->wowlan->four_way_handshake && | |
7086 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
7087 | (rdev->wowlan->rfkill_release && | |
7088 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
7089 | goto nla_put_failure; | |
2a0e047e | 7090 | |
bb92d199 AK |
7091 | if (nl80211_send_wowlan_patterns(msg, rdev)) |
7092 | goto nla_put_failure; | |
2a0e047e JB |
7093 | |
7094 | if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp)) | |
7095 | goto nla_put_failure; | |
7096 | ||
ff1b6e69 JB |
7097 | nla_nest_end(msg, nl_wowlan); |
7098 | } | |
7099 | ||
7100 | genlmsg_end(msg, hdr); | |
7101 | return genlmsg_reply(msg, info); | |
7102 | ||
7103 | nla_put_failure: | |
7104 | nlmsg_free(msg); | |
7105 | return -ENOBUFS; | |
7106 | } | |
7107 | ||
2a0e047e JB |
7108 | static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, |
7109 | struct nlattr *attr, | |
7110 | struct cfg80211_wowlan *trig) | |
7111 | { | |
7112 | struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; | |
7113 | struct cfg80211_wowlan_tcp *cfg; | |
7114 | struct nl80211_wowlan_tcp_data_token *tok = NULL; | |
7115 | struct nl80211_wowlan_tcp_data_seq *seq = NULL; | |
7116 | u32 size; | |
7117 | u32 data_size, wake_size, tokens_size = 0, wake_mask_size; | |
7118 | int err, port; | |
7119 | ||
7120 | if (!rdev->wiphy.wowlan.tcp) | |
7121 | return -EINVAL; | |
7122 | ||
7123 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, | |
7124 | nla_data(attr), nla_len(attr), | |
7125 | nl80211_wowlan_tcp_policy); | |
7126 | if (err) | |
7127 | return err; | |
7128 | ||
7129 | if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || | |
7130 | !tb[NL80211_WOWLAN_TCP_DST_IPV4] || | |
7131 | !tb[NL80211_WOWLAN_TCP_DST_MAC] || | |
7132 | !tb[NL80211_WOWLAN_TCP_DST_PORT] || | |
7133 | !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || | |
7134 | !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || | |
7135 | !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || | |
7136 | !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) | |
7137 | return -EINVAL; | |
7138 | ||
7139 | data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); | |
7140 | if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max) | |
7141 | return -EINVAL; | |
7142 | ||
7143 | if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > | |
7144 | rdev->wiphy.wowlan.tcp->data_interval_max) | |
7145 | return -EINVAL; | |
7146 | ||
7147 | wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); | |
7148 | if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max) | |
7149 | return -EINVAL; | |
7150 | ||
7151 | wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); | |
7152 | if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) | |
7153 | return -EINVAL; | |
7154 | ||
7155 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { | |
7156 | u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
7157 | ||
7158 | tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
7159 | tokens_size = tokln - sizeof(*tok); | |
7160 | ||
7161 | if (!tok->len || tokens_size % tok->len) | |
7162 | return -EINVAL; | |
7163 | if (!rdev->wiphy.wowlan.tcp->tok) | |
7164 | return -EINVAL; | |
7165 | if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len) | |
7166 | return -EINVAL; | |
7167 | if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len) | |
7168 | return -EINVAL; | |
7169 | if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize) | |
7170 | return -EINVAL; | |
7171 | if (tok->offset + tok->len > data_size) | |
7172 | return -EINVAL; | |
7173 | } | |
7174 | ||
7175 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { | |
7176 | seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); | |
7177 | if (!rdev->wiphy.wowlan.tcp->seq) | |
7178 | return -EINVAL; | |
7179 | if (seq->len == 0 || seq->len > 4) | |
7180 | return -EINVAL; | |
7181 | if (seq->len + seq->offset > data_size) | |
7182 | return -EINVAL; | |
7183 | } | |
7184 | ||
7185 | size = sizeof(*cfg); | |
7186 | size += data_size; | |
7187 | size += wake_size + wake_mask_size; | |
7188 | size += tokens_size; | |
7189 | ||
7190 | cfg = kzalloc(size, GFP_KERNEL); | |
7191 | if (!cfg) | |
7192 | return -ENOMEM; | |
7193 | cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); | |
7194 | cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]); | |
7195 | memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), | |
7196 | ETH_ALEN); | |
7197 | if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) | |
7198 | port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); | |
7199 | else | |
7200 | port = 0; | |
7201 | #ifdef CONFIG_INET | |
7202 | /* allocate a socket and port for it and use it */ | |
7203 | err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, | |
7204 | IPPROTO_TCP, &cfg->sock, 1); | |
7205 | if (err) { | |
7206 | kfree(cfg); | |
7207 | return err; | |
7208 | } | |
7209 | if (inet_csk_get_port(cfg->sock->sk, port)) { | |
7210 | sock_release(cfg->sock); | |
7211 | kfree(cfg); | |
7212 | return -EADDRINUSE; | |
7213 | } | |
7214 | cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; | |
7215 | #else | |
7216 | if (!port) { | |
7217 | kfree(cfg); | |
7218 | return -EINVAL; | |
7219 | } | |
7220 | cfg->src_port = port; | |
7221 | #endif | |
7222 | ||
7223 | cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); | |
7224 | cfg->payload_len = data_size; | |
7225 | cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; | |
7226 | memcpy((void *)cfg->payload, | |
7227 | nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), | |
7228 | data_size); | |
7229 | if (seq) | |
7230 | cfg->payload_seq = *seq; | |
7231 | cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); | |
7232 | cfg->wake_len = wake_size; | |
7233 | cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; | |
7234 | memcpy((void *)cfg->wake_data, | |
7235 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), | |
7236 | wake_size); | |
7237 | cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + | |
7238 | data_size + wake_size; | |
7239 | memcpy((void *)cfg->wake_mask, | |
7240 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), | |
7241 | wake_mask_size); | |
7242 | if (tok) { | |
7243 | cfg->tokens_size = tokens_size; | |
7244 | memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size); | |
7245 | } | |
7246 | ||
7247 | trig->tcp = cfg; | |
7248 | ||
7249 | return 0; | |
7250 | } | |
7251 | ||
ff1b6e69 JB |
7252 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) |
7253 | { | |
7254 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7255 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
ff1b6e69 | 7256 | struct cfg80211_wowlan new_triggers = {}; |
ae33bd81 | 7257 | struct cfg80211_wowlan *ntrig; |
ff1b6e69 JB |
7258 | struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; |
7259 | int err, i; | |
6d52563f | 7260 | bool prev_enabled = rdev->wowlan; |
ff1b6e69 | 7261 | |
2a0e047e JB |
7262 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns && |
7263 | !rdev->wiphy.wowlan.tcp) | |
ff1b6e69 JB |
7264 | return -EOPNOTSUPP; |
7265 | ||
ae33bd81 JB |
7266 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
7267 | cfg80211_rdev_free_wowlan(rdev); | |
7268 | rdev->wowlan = NULL; | |
7269 | goto set_wakeup; | |
7270 | } | |
ff1b6e69 JB |
7271 | |
7272 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
7273 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
7274 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
7275 | nl80211_wowlan_policy); | |
7276 | if (err) | |
7277 | return err; | |
7278 | ||
7279 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
7280 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
7281 | return -EINVAL; | |
7282 | new_triggers.any = true; | |
7283 | } | |
7284 | ||
7285 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
7286 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
7287 | return -EINVAL; | |
7288 | new_triggers.disconnect = true; | |
7289 | } | |
7290 | ||
7291 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
7292 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
7293 | return -EINVAL; | |
7294 | new_triggers.magic_pkt = true; | |
7295 | } | |
7296 | ||
77dbbb13 JB |
7297 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
7298 | return -EINVAL; | |
7299 | ||
7300 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
7301 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
7302 | return -EINVAL; | |
7303 | new_triggers.gtk_rekey_failure = true; | |
7304 | } | |
7305 | ||
7306 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
7307 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
7308 | return -EINVAL; | |
7309 | new_triggers.eap_identity_req = true; | |
7310 | } | |
7311 | ||
7312 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
7313 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
7314 | return -EINVAL; | |
7315 | new_triggers.four_way_handshake = true; | |
7316 | } | |
7317 | ||
7318 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
7319 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
7320 | return -EINVAL; | |
7321 | new_triggers.rfkill_release = true; | |
7322 | } | |
7323 | ||
ff1b6e69 JB |
7324 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
7325 | struct nlattr *pat; | |
7326 | int n_patterns = 0; | |
bb92d199 | 7327 | int rem, pat_len, mask_len, pkt_offset; |
ff1b6e69 JB |
7328 | struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT]; |
7329 | ||
7330 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
7331 | rem) | |
7332 | n_patterns++; | |
7333 | if (n_patterns > wowlan->n_patterns) | |
7334 | return -EINVAL; | |
7335 | ||
7336 | new_triggers.patterns = kcalloc(n_patterns, | |
7337 | sizeof(new_triggers.patterns[0]), | |
7338 | GFP_KERNEL); | |
7339 | if (!new_triggers.patterns) | |
7340 | return -ENOMEM; | |
7341 | ||
7342 | new_triggers.n_patterns = n_patterns; | |
7343 | i = 0; | |
7344 | ||
7345 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
7346 | rem) { | |
7347 | nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT, | |
7348 | nla_data(pat), nla_len(pat), NULL); | |
7349 | err = -EINVAL; | |
7350 | if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] || | |
7351 | !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]) | |
7352 | goto error; | |
7353 | pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]); | |
7354 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
7355 | if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) != | |
7356 | mask_len) | |
7357 | goto error; | |
7358 | if (pat_len > wowlan->pattern_max_len || | |
7359 | pat_len < wowlan->pattern_min_len) | |
7360 | goto error; | |
7361 | ||
bb92d199 AK |
7362 | if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]) |
7363 | pkt_offset = 0; | |
7364 | else | |
7365 | pkt_offset = nla_get_u32( | |
7366 | pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]); | |
7367 | if (pkt_offset > wowlan->max_pkt_offset) | |
7368 | goto error; | |
7369 | new_triggers.patterns[i].pkt_offset = pkt_offset; | |
7370 | ||
ff1b6e69 JB |
7371 | new_triggers.patterns[i].mask = |
7372 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
7373 | if (!new_triggers.patterns[i].mask) { | |
7374 | err = -ENOMEM; | |
7375 | goto error; | |
7376 | } | |
7377 | new_triggers.patterns[i].pattern = | |
7378 | new_triggers.patterns[i].mask + mask_len; | |
7379 | memcpy(new_triggers.patterns[i].mask, | |
7380 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]), | |
7381 | mask_len); | |
7382 | new_triggers.patterns[i].pattern_len = pat_len; | |
7383 | memcpy(new_triggers.patterns[i].pattern, | |
7384 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]), | |
7385 | pat_len); | |
7386 | i++; | |
7387 | } | |
7388 | } | |
7389 | ||
2a0e047e JB |
7390 | if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { |
7391 | err = nl80211_parse_wowlan_tcp( | |
7392 | rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], | |
7393 | &new_triggers); | |
7394 | if (err) | |
7395 | goto error; | |
7396 | } | |
7397 | ||
ae33bd81 JB |
7398 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
7399 | if (!ntrig) { | |
7400 | err = -ENOMEM; | |
7401 | goto error; | |
ff1b6e69 | 7402 | } |
ae33bd81 JB |
7403 | cfg80211_rdev_free_wowlan(rdev); |
7404 | rdev->wowlan = ntrig; | |
ff1b6e69 | 7405 | |
ae33bd81 | 7406 | set_wakeup: |
6d52563f | 7407 | if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan) |
e35e4d28 | 7408 | rdev_set_wakeup(rdev, rdev->wowlan); |
6d52563f | 7409 | |
ff1b6e69 JB |
7410 | return 0; |
7411 | error: | |
7412 | for (i = 0; i < new_triggers.n_patterns; i++) | |
7413 | kfree(new_triggers.patterns[i].mask); | |
7414 | kfree(new_triggers.patterns); | |
2a0e047e JB |
7415 | if (new_triggers.tcp && new_triggers.tcp->sock) |
7416 | sock_release(new_triggers.tcp->sock); | |
7417 | kfree(new_triggers.tcp); | |
ff1b6e69 JB |
7418 | return err; |
7419 | } | |
dfb89c56 | 7420 | #endif |
ff1b6e69 | 7421 | |
e5497d76 JB |
7422 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
7423 | { | |
7424 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7425 | struct net_device *dev = info->user_ptr[1]; | |
7426 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7427 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
7428 | struct cfg80211_gtk_rekey_data rekey_data; | |
7429 | int err; | |
7430 | ||
7431 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
7432 | return -EINVAL; | |
7433 | ||
7434 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
7435 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
7436 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
7437 | nl80211_rekey_policy); | |
7438 | if (err) | |
7439 | return err; | |
7440 | ||
7441 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
7442 | return -ERANGE; | |
7443 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
7444 | return -ERANGE; | |
7445 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
7446 | return -ERANGE; | |
7447 | ||
7448 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), | |
7449 | NL80211_KEK_LEN); | |
7450 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), | |
7451 | NL80211_KCK_LEN); | |
7452 | memcpy(rekey_data.replay_ctr, | |
7453 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), | |
7454 | NL80211_REPLAY_CTR_LEN); | |
7455 | ||
7456 | wdev_lock(wdev); | |
7457 | if (!wdev->current_bss) { | |
7458 | err = -ENOTCONN; | |
7459 | goto out; | |
7460 | } | |
7461 | ||
7462 | if (!rdev->ops->set_rekey_data) { | |
7463 | err = -EOPNOTSUPP; | |
7464 | goto out; | |
7465 | } | |
7466 | ||
e35e4d28 | 7467 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); |
e5497d76 JB |
7468 | out: |
7469 | wdev_unlock(wdev); | |
7470 | return err; | |
7471 | } | |
7472 | ||
28946da7 JB |
7473 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
7474 | struct genl_info *info) | |
7475 | { | |
7476 | struct net_device *dev = info->user_ptr[1]; | |
7477 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7478 | ||
7479 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
7480 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
7481 | return -EINVAL; | |
7482 | ||
15e47304 | 7483 | if (wdev->ap_unexpected_nlportid) |
28946da7 JB |
7484 | return -EBUSY; |
7485 | ||
15e47304 | 7486 | wdev->ap_unexpected_nlportid = info->snd_portid; |
28946da7 JB |
7487 | return 0; |
7488 | } | |
7489 | ||
7f6cf311 JB |
7490 | static int nl80211_probe_client(struct sk_buff *skb, |
7491 | struct genl_info *info) | |
7492 | { | |
7493 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7494 | struct net_device *dev = info->user_ptr[1]; | |
7495 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7496 | struct sk_buff *msg; | |
7497 | void *hdr; | |
7498 | const u8 *addr; | |
7499 | u64 cookie; | |
7500 | int err; | |
7501 | ||
7502 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
7503 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
7504 | return -EOPNOTSUPP; | |
7505 | ||
7506 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7507 | return -EINVAL; | |
7508 | ||
7509 | if (!rdev->ops->probe_client) | |
7510 | return -EOPNOTSUPP; | |
7511 | ||
7512 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7513 | if (!msg) | |
7514 | return -ENOMEM; | |
7515 | ||
15e47304 | 7516 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7f6cf311 JB |
7517 | NL80211_CMD_PROBE_CLIENT); |
7518 | ||
7519 | if (IS_ERR(hdr)) { | |
7520 | err = PTR_ERR(hdr); | |
7521 | goto free_msg; | |
7522 | } | |
7523 | ||
7524 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7525 | ||
e35e4d28 | 7526 | err = rdev_probe_client(rdev, dev, addr, &cookie); |
7f6cf311 JB |
7527 | if (err) |
7528 | goto free_msg; | |
7529 | ||
9360ffd1 DM |
7530 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
7531 | goto nla_put_failure; | |
7f6cf311 JB |
7532 | |
7533 | genlmsg_end(msg, hdr); | |
7534 | ||
7535 | return genlmsg_reply(msg, info); | |
7536 | ||
7537 | nla_put_failure: | |
7538 | err = -ENOBUFS; | |
7539 | free_msg: | |
7540 | nlmsg_free(msg); | |
7541 | return err; | |
7542 | } | |
7543 | ||
5e760230 JB |
7544 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
7545 | { | |
7546 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
37c73b5f BG |
7547 | struct cfg80211_beacon_registration *reg, *nreg; |
7548 | int rv; | |
5e760230 JB |
7549 | |
7550 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
7551 | return -EOPNOTSUPP; | |
7552 | ||
37c73b5f BG |
7553 | nreg = kzalloc(sizeof(*nreg), GFP_KERNEL); |
7554 | if (!nreg) | |
7555 | return -ENOMEM; | |
7556 | ||
7557 | /* First, check if already registered. */ | |
7558 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
7559 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
7560 | if (reg->nlportid == info->snd_portid) { | |
7561 | rv = -EALREADY; | |
7562 | goto out_err; | |
7563 | } | |
7564 | } | |
7565 | /* Add it to the list */ | |
7566 | nreg->nlportid = info->snd_portid; | |
7567 | list_add(&nreg->list, &rdev->beacon_registrations); | |
5e760230 | 7568 | |
37c73b5f | 7569 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
5e760230 JB |
7570 | |
7571 | return 0; | |
37c73b5f BG |
7572 | out_err: |
7573 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
7574 | kfree(nreg); | |
7575 | return rv; | |
5e760230 JB |
7576 | } |
7577 | ||
98104fde JB |
7578 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
7579 | { | |
7580 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7581 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7582 | int err; | |
7583 | ||
7584 | if (!rdev->ops->start_p2p_device) | |
7585 | return -EOPNOTSUPP; | |
7586 | ||
7587 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
7588 | return -EOPNOTSUPP; | |
7589 | ||
7590 | if (wdev->p2p_started) | |
7591 | return 0; | |
7592 | ||
7593 | mutex_lock(&rdev->devlist_mtx); | |
7594 | err = cfg80211_can_add_interface(rdev, wdev->iftype); | |
7595 | mutex_unlock(&rdev->devlist_mtx); | |
7596 | if (err) | |
7597 | return err; | |
7598 | ||
eeb126e9 | 7599 | err = rdev_start_p2p_device(rdev, wdev); |
98104fde JB |
7600 | if (err) |
7601 | return err; | |
7602 | ||
7603 | wdev->p2p_started = true; | |
7604 | mutex_lock(&rdev->devlist_mtx); | |
7605 | rdev->opencount++; | |
7606 | mutex_unlock(&rdev->devlist_mtx); | |
7607 | ||
7608 | return 0; | |
7609 | } | |
7610 | ||
7611 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
7612 | { | |
7613 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7614 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7615 | ||
7616 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
7617 | return -EOPNOTSUPP; | |
7618 | ||
7619 | if (!rdev->ops->stop_p2p_device) | |
7620 | return -EOPNOTSUPP; | |
7621 | ||
7622 | if (!wdev->p2p_started) | |
7623 | return 0; | |
7624 | ||
eeb126e9 | 7625 | rdev_stop_p2p_device(rdev, wdev); |
98104fde JB |
7626 | wdev->p2p_started = false; |
7627 | ||
7628 | mutex_lock(&rdev->devlist_mtx); | |
7629 | rdev->opencount--; | |
7630 | mutex_unlock(&rdev->devlist_mtx); | |
7631 | ||
7632 | if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) { | |
7633 | rdev->scan_req->aborted = true; | |
7634 | ___cfg80211_scan_done(rdev, true); | |
7635 | } | |
7636 | ||
7637 | return 0; | |
7638 | } | |
7639 | ||
4c476991 JB |
7640 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
7641 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
7642 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
7643 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
7644 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
7645 | NL80211_FLAG_CHECK_NETDEV_UP) | |
1bf614ef | 7646 | #define NL80211_FLAG_NEED_WDEV 0x10 |
98104fde | 7647 | /* If a netdev is associated, it must be UP, P2P must be started */ |
1bf614ef JB |
7648 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
7649 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
7650 | |
7651 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
7652 | struct genl_info *info) | |
7653 | { | |
7654 | struct cfg80211_registered_device *rdev; | |
89a54e48 | 7655 | struct wireless_dev *wdev; |
4c476991 | 7656 | struct net_device *dev; |
4c476991 JB |
7657 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; |
7658 | ||
7659 | if (rtnl) | |
7660 | rtnl_lock(); | |
7661 | ||
7662 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4f7eff10 | 7663 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
4c476991 JB |
7664 | if (IS_ERR(rdev)) { |
7665 | if (rtnl) | |
7666 | rtnl_unlock(); | |
7667 | return PTR_ERR(rdev); | |
7668 | } | |
7669 | info->user_ptr[0] = rdev; | |
1bf614ef JB |
7670 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || |
7671 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
89a54e48 JB |
7672 | mutex_lock(&cfg80211_mutex); |
7673 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), | |
7674 | info->attrs); | |
7675 | if (IS_ERR(wdev)) { | |
7676 | mutex_unlock(&cfg80211_mutex); | |
4c476991 JB |
7677 | if (rtnl) |
7678 | rtnl_unlock(); | |
89a54e48 | 7679 | return PTR_ERR(wdev); |
4c476991 | 7680 | } |
89a54e48 | 7681 | |
89a54e48 JB |
7682 | dev = wdev->netdev; |
7683 | rdev = wiphy_to_dev(wdev->wiphy); | |
7684 | ||
1bf614ef JB |
7685 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { |
7686 | if (!dev) { | |
7687 | mutex_unlock(&cfg80211_mutex); | |
7688 | if (rtnl) | |
7689 | rtnl_unlock(); | |
7690 | return -EINVAL; | |
7691 | } | |
7692 | ||
7693 | info->user_ptr[1] = dev; | |
7694 | } else { | |
7695 | info->user_ptr[1] = wdev; | |
41265714 | 7696 | } |
1bf614ef JB |
7697 | |
7698 | if (dev) { | |
7699 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
7700 | !netif_running(dev)) { | |
7701 | mutex_unlock(&cfg80211_mutex); | |
7702 | if (rtnl) | |
7703 | rtnl_unlock(); | |
7704 | return -ENETDOWN; | |
7705 | } | |
7706 | ||
7707 | dev_hold(dev); | |
98104fde JB |
7708 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { |
7709 | if (!wdev->p2p_started) { | |
7710 | mutex_unlock(&cfg80211_mutex); | |
7711 | if (rtnl) | |
7712 | rtnl_unlock(); | |
7713 | return -ENETDOWN; | |
7714 | } | |
41265714 | 7715 | } |
89a54e48 | 7716 | |
89a54e48 JB |
7717 | cfg80211_lock_rdev(rdev); |
7718 | ||
7719 | mutex_unlock(&cfg80211_mutex); | |
7720 | ||
4c476991 | 7721 | info->user_ptr[0] = rdev; |
4c476991 JB |
7722 | } |
7723 | ||
7724 | return 0; | |
7725 | } | |
7726 | ||
7727 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
7728 | struct genl_info *info) | |
7729 | { | |
7730 | if (info->user_ptr[0]) | |
7731 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
1bf614ef JB |
7732 | if (info->user_ptr[1]) { |
7733 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
7734 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7735 | ||
7736 | if (wdev->netdev) | |
7737 | dev_put(wdev->netdev); | |
7738 | } else { | |
7739 | dev_put(info->user_ptr[1]); | |
7740 | } | |
7741 | } | |
4c476991 JB |
7742 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) |
7743 | rtnl_unlock(); | |
7744 | } | |
7745 | ||
55682965 JB |
7746 | static struct genl_ops nl80211_ops[] = { |
7747 | { | |
7748 | .cmd = NL80211_CMD_GET_WIPHY, | |
7749 | .doit = nl80211_get_wiphy, | |
7750 | .dumpit = nl80211_dump_wiphy, | |
7751 | .policy = nl80211_policy, | |
7752 | /* can be retrieved by unprivileged users */ | |
4c476991 | 7753 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
7754 | }, |
7755 | { | |
7756 | .cmd = NL80211_CMD_SET_WIPHY, | |
7757 | .doit = nl80211_set_wiphy, | |
7758 | .policy = nl80211_policy, | |
7759 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 7760 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
7761 | }, |
7762 | { | |
7763 | .cmd = NL80211_CMD_GET_INTERFACE, | |
7764 | .doit = nl80211_get_interface, | |
7765 | .dumpit = nl80211_dump_interface, | |
7766 | .policy = nl80211_policy, | |
7767 | /* can be retrieved by unprivileged users */ | |
72fb2abc | 7768 | .internal_flags = NL80211_FLAG_NEED_WDEV, |
55682965 JB |
7769 | }, |
7770 | { | |
7771 | .cmd = NL80211_CMD_SET_INTERFACE, | |
7772 | .doit = nl80211_set_interface, | |
7773 | .policy = nl80211_policy, | |
7774 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7775 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7776 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
7777 | }, |
7778 | { | |
7779 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
7780 | .doit = nl80211_new_interface, | |
7781 | .policy = nl80211_policy, | |
7782 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7783 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
7784 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
7785 | }, |
7786 | { | |
7787 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
7788 | .doit = nl80211_del_interface, | |
7789 | .policy = nl80211_policy, | |
41ade00f | 7790 | .flags = GENL_ADMIN_PERM, |
84efbb84 | 7791 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 7792 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7793 | }, |
7794 | { | |
7795 | .cmd = NL80211_CMD_GET_KEY, | |
7796 | .doit = nl80211_get_key, | |
7797 | .policy = nl80211_policy, | |
7798 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7799 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7800 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7801 | }, |
7802 | { | |
7803 | .cmd = NL80211_CMD_SET_KEY, | |
7804 | .doit = nl80211_set_key, | |
7805 | .policy = nl80211_policy, | |
7806 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7807 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7808 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7809 | }, |
7810 | { | |
7811 | .cmd = NL80211_CMD_NEW_KEY, | |
7812 | .doit = nl80211_new_key, | |
7813 | .policy = nl80211_policy, | |
7814 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7815 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7816 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7817 | }, |
7818 | { | |
7819 | .cmd = NL80211_CMD_DEL_KEY, | |
7820 | .doit = nl80211_del_key, | |
7821 | .policy = nl80211_policy, | |
55682965 | 7822 | .flags = GENL_ADMIN_PERM, |
41265714 | 7823 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7824 | NL80211_FLAG_NEED_RTNL, |
55682965 | 7825 | }, |
ed1b6cc7 JB |
7826 | { |
7827 | .cmd = NL80211_CMD_SET_BEACON, | |
7828 | .policy = nl80211_policy, | |
7829 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7830 | .doit = nl80211_set_beacon, |
2b5f8b0b | 7831 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7832 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
7833 | }, |
7834 | { | |
8860020e | 7835 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
7836 | .policy = nl80211_policy, |
7837 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7838 | .doit = nl80211_start_ap, |
2b5f8b0b | 7839 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7840 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
7841 | }, |
7842 | { | |
8860020e | 7843 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
7844 | .policy = nl80211_policy, |
7845 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7846 | .doit = nl80211_stop_ap, |
2b5f8b0b | 7847 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7848 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 | 7849 | }, |
5727ef1b JB |
7850 | { |
7851 | .cmd = NL80211_CMD_GET_STATION, | |
7852 | .doit = nl80211_get_station, | |
2ec600d6 | 7853 | .dumpit = nl80211_dump_station, |
5727ef1b | 7854 | .policy = nl80211_policy, |
4c476991 JB |
7855 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7856 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
7857 | }, |
7858 | { | |
7859 | .cmd = NL80211_CMD_SET_STATION, | |
7860 | .doit = nl80211_set_station, | |
7861 | .policy = nl80211_policy, | |
7862 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7863 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7864 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
7865 | }, |
7866 | { | |
7867 | .cmd = NL80211_CMD_NEW_STATION, | |
7868 | .doit = nl80211_new_station, | |
7869 | .policy = nl80211_policy, | |
7870 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7871 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7872 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
7873 | }, |
7874 | { | |
7875 | .cmd = NL80211_CMD_DEL_STATION, | |
7876 | .doit = nl80211_del_station, | |
7877 | .policy = nl80211_policy, | |
2ec600d6 | 7878 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7879 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7880 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7881 | }, |
7882 | { | |
7883 | .cmd = NL80211_CMD_GET_MPATH, | |
7884 | .doit = nl80211_get_mpath, | |
7885 | .dumpit = nl80211_dump_mpath, | |
7886 | .policy = nl80211_policy, | |
7887 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7888 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7889 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7890 | }, |
7891 | { | |
7892 | .cmd = NL80211_CMD_SET_MPATH, | |
7893 | .doit = nl80211_set_mpath, | |
7894 | .policy = nl80211_policy, | |
7895 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7896 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7897 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7898 | }, |
7899 | { | |
7900 | .cmd = NL80211_CMD_NEW_MPATH, | |
7901 | .doit = nl80211_new_mpath, | |
7902 | .policy = nl80211_policy, | |
7903 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7904 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7905 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7906 | }, |
7907 | { | |
7908 | .cmd = NL80211_CMD_DEL_MPATH, | |
7909 | .doit = nl80211_del_mpath, | |
7910 | .policy = nl80211_policy, | |
9f1ba906 | 7911 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7912 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7913 | NL80211_FLAG_NEED_RTNL, |
9f1ba906 JM |
7914 | }, |
7915 | { | |
7916 | .cmd = NL80211_CMD_SET_BSS, | |
7917 | .doit = nl80211_set_bss, | |
7918 | .policy = nl80211_policy, | |
b2e1b302 | 7919 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7920 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7921 | NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 7922 | }, |
f130347c LR |
7923 | { |
7924 | .cmd = NL80211_CMD_GET_REG, | |
7925 | .doit = nl80211_get_reg, | |
7926 | .policy = nl80211_policy, | |
7927 | /* can be retrieved by unprivileged users */ | |
7928 | }, | |
b2e1b302 LR |
7929 | { |
7930 | .cmd = NL80211_CMD_SET_REG, | |
7931 | .doit = nl80211_set_reg, | |
7932 | .policy = nl80211_policy, | |
7933 | .flags = GENL_ADMIN_PERM, | |
7934 | }, | |
7935 | { | |
7936 | .cmd = NL80211_CMD_REQ_SET_REG, | |
7937 | .doit = nl80211_req_set_reg, | |
7938 | .policy = nl80211_policy, | |
93da9cc1 | 7939 | .flags = GENL_ADMIN_PERM, |
7940 | }, | |
7941 | { | |
24bdd9f4 JC |
7942 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
7943 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 7944 | .policy = nl80211_policy, |
7945 | /* can be retrieved by unprivileged users */ | |
2b5f8b0b | 7946 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7947 | NL80211_FLAG_NEED_RTNL, |
93da9cc1 | 7948 | }, |
7949 | { | |
24bdd9f4 JC |
7950 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
7951 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 7952 | .policy = nl80211_policy, |
9aed3cc1 | 7953 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 7954 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7955 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 7956 | }, |
2a519311 JB |
7957 | { |
7958 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
7959 | .doit = nl80211_trigger_scan, | |
7960 | .policy = nl80211_policy, | |
7961 | .flags = GENL_ADMIN_PERM, | |
fd014284 | 7962 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7963 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
7964 | }, |
7965 | { | |
7966 | .cmd = NL80211_CMD_GET_SCAN, | |
7967 | .policy = nl80211_policy, | |
7968 | .dumpit = nl80211_dump_scan, | |
7969 | }, | |
807f8a8c LC |
7970 | { |
7971 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
7972 | .doit = nl80211_start_sched_scan, | |
7973 | .policy = nl80211_policy, | |
7974 | .flags = GENL_ADMIN_PERM, | |
7975 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7976 | NL80211_FLAG_NEED_RTNL, | |
7977 | }, | |
7978 | { | |
7979 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
7980 | .doit = nl80211_stop_sched_scan, | |
7981 | .policy = nl80211_policy, | |
7982 | .flags = GENL_ADMIN_PERM, | |
7983 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7984 | NL80211_FLAG_NEED_RTNL, | |
7985 | }, | |
636a5d36 JM |
7986 | { |
7987 | .cmd = NL80211_CMD_AUTHENTICATE, | |
7988 | .doit = nl80211_authenticate, | |
7989 | .policy = nl80211_policy, | |
7990 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7991 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7992 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
7993 | }, |
7994 | { | |
7995 | .cmd = NL80211_CMD_ASSOCIATE, | |
7996 | .doit = nl80211_associate, | |
7997 | .policy = nl80211_policy, | |
7998 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7999 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8000 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
8001 | }, |
8002 | { | |
8003 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
8004 | .doit = nl80211_deauthenticate, | |
8005 | .policy = nl80211_policy, | |
8006 | .flags = GENL_ADMIN_PERM, | |
41265714 | 8007 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8008 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
8009 | }, |
8010 | { | |
8011 | .cmd = NL80211_CMD_DISASSOCIATE, | |
8012 | .doit = nl80211_disassociate, | |
8013 | .policy = nl80211_policy, | |
8014 | .flags = GENL_ADMIN_PERM, | |
41265714 | 8015 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8016 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 8017 | }, |
04a773ad JB |
8018 | { |
8019 | .cmd = NL80211_CMD_JOIN_IBSS, | |
8020 | .doit = nl80211_join_ibss, | |
8021 | .policy = nl80211_policy, | |
8022 | .flags = GENL_ADMIN_PERM, | |
41265714 | 8023 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8024 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
8025 | }, |
8026 | { | |
8027 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
8028 | .doit = nl80211_leave_ibss, | |
8029 | .policy = nl80211_policy, | |
8030 | .flags = GENL_ADMIN_PERM, | |
41265714 | 8031 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8032 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 8033 | }, |
aff89a9b JB |
8034 | #ifdef CONFIG_NL80211_TESTMODE |
8035 | { | |
8036 | .cmd = NL80211_CMD_TESTMODE, | |
8037 | .doit = nl80211_testmode_do, | |
71063f0e | 8038 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
8039 | .policy = nl80211_policy, |
8040 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
8041 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
8042 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
8043 | }, |
8044 | #endif | |
b23aa676 SO |
8045 | { |
8046 | .cmd = NL80211_CMD_CONNECT, | |
8047 | .doit = nl80211_connect, | |
8048 | .policy = nl80211_policy, | |
8049 | .flags = GENL_ADMIN_PERM, | |
41265714 | 8050 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8051 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
8052 | }, |
8053 | { | |
8054 | .cmd = NL80211_CMD_DISCONNECT, | |
8055 | .doit = nl80211_disconnect, | |
8056 | .policy = nl80211_policy, | |
8057 | .flags = GENL_ADMIN_PERM, | |
41265714 | 8058 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8059 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 8060 | }, |
463d0183 JB |
8061 | { |
8062 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
8063 | .doit = nl80211_wiphy_netns, | |
8064 | .policy = nl80211_policy, | |
8065 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
8066 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
8067 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 8068 | }, |
61fa713c HS |
8069 | { |
8070 | .cmd = NL80211_CMD_GET_SURVEY, | |
8071 | .policy = nl80211_policy, | |
8072 | .dumpit = nl80211_dump_survey, | |
8073 | }, | |
67fbb16b SO |
8074 | { |
8075 | .cmd = NL80211_CMD_SET_PMKSA, | |
8076 | .doit = nl80211_setdel_pmksa, | |
8077 | .policy = nl80211_policy, | |
8078 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 8079 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8080 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
8081 | }, |
8082 | { | |
8083 | .cmd = NL80211_CMD_DEL_PMKSA, | |
8084 | .doit = nl80211_setdel_pmksa, | |
8085 | .policy = nl80211_policy, | |
8086 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 8087 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8088 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
8089 | }, |
8090 | { | |
8091 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
8092 | .doit = nl80211_flush_pmksa, | |
8093 | .policy = nl80211_policy, | |
8094 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 8095 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 8096 | NL80211_FLAG_NEED_RTNL, |
67fbb16b | 8097 | }, |
9588bbd5 JM |
8098 | { |
8099 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
8100 | .doit = nl80211_remain_on_channel, | |
8101 | .policy = nl80211_policy, | |
8102 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 8103 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 8104 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
8105 | }, |
8106 | { | |
8107 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
8108 | .doit = nl80211_cancel_remain_on_channel, | |
8109 | .policy = nl80211_policy, | |
8110 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 8111 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 8112 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 8113 | }, |
13ae75b1 JM |
8114 | { |
8115 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
8116 | .doit = nl80211_set_tx_bitrate_mask, | |
8117 | .policy = nl80211_policy, | |
8118 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
8119 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
8120 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 8121 | }, |
026331c4 | 8122 | { |
2e161f78 JB |
8123 | .cmd = NL80211_CMD_REGISTER_FRAME, |
8124 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
8125 | .policy = nl80211_policy, |
8126 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 8127 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 8128 | NL80211_FLAG_NEED_RTNL, |
026331c4 JM |
8129 | }, |
8130 | { | |
2e161f78 JB |
8131 | .cmd = NL80211_CMD_FRAME, |
8132 | .doit = nl80211_tx_mgmt, | |
026331c4 | 8133 | .policy = nl80211_policy, |
f7ca38df | 8134 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 8135 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
f7ca38df JB |
8136 | NL80211_FLAG_NEED_RTNL, |
8137 | }, | |
8138 | { | |
8139 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
8140 | .doit = nl80211_tx_mgmt_cancel_wait, | |
8141 | .policy = nl80211_policy, | |
026331c4 | 8142 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 8143 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 8144 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 8145 | }, |
ffb9eb3d KV |
8146 | { |
8147 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
8148 | .doit = nl80211_set_power_save, | |
8149 | .policy = nl80211_policy, | |
8150 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
8151 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
8152 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
8153 | }, |
8154 | { | |
8155 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
8156 | .doit = nl80211_get_power_save, | |
8157 | .policy = nl80211_policy, | |
8158 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
8159 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
8160 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 8161 | }, |
d6dc1a38 JO |
8162 | { |
8163 | .cmd = NL80211_CMD_SET_CQM, | |
8164 | .doit = nl80211_set_cqm, | |
8165 | .policy = nl80211_policy, | |
8166 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
8167 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
8168 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 8169 | }, |
f444de05 JB |
8170 | { |
8171 | .cmd = NL80211_CMD_SET_CHANNEL, | |
8172 | .doit = nl80211_set_channel, | |
8173 | .policy = nl80211_policy, | |
8174 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
8175 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
8176 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 8177 | }, |
e8347eba BJ |
8178 | { |
8179 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
8180 | .doit = nl80211_set_wds_peer, | |
8181 | .policy = nl80211_policy, | |
8182 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
8183 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
8184 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 8185 | }, |
29cbe68c JB |
8186 | { |
8187 | .cmd = NL80211_CMD_JOIN_MESH, | |
8188 | .doit = nl80211_join_mesh, | |
8189 | .policy = nl80211_policy, | |
8190 | .flags = GENL_ADMIN_PERM, | |
8191 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
8192 | NL80211_FLAG_NEED_RTNL, | |
8193 | }, | |
8194 | { | |
8195 | .cmd = NL80211_CMD_LEAVE_MESH, | |
8196 | .doit = nl80211_leave_mesh, | |
8197 | .policy = nl80211_policy, | |
8198 | .flags = GENL_ADMIN_PERM, | |
8199 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
8200 | NL80211_FLAG_NEED_RTNL, | |
8201 | }, | |
dfb89c56 | 8202 | #ifdef CONFIG_PM |
ff1b6e69 JB |
8203 | { |
8204 | .cmd = NL80211_CMD_GET_WOWLAN, | |
8205 | .doit = nl80211_get_wowlan, | |
8206 | .policy = nl80211_policy, | |
8207 | /* can be retrieved by unprivileged users */ | |
8208 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
8209 | NL80211_FLAG_NEED_RTNL, | |
8210 | }, | |
8211 | { | |
8212 | .cmd = NL80211_CMD_SET_WOWLAN, | |
8213 | .doit = nl80211_set_wowlan, | |
8214 | .policy = nl80211_policy, | |
8215 | .flags = GENL_ADMIN_PERM, | |
8216 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
8217 | NL80211_FLAG_NEED_RTNL, | |
8218 | }, | |
dfb89c56 | 8219 | #endif |
e5497d76 JB |
8220 | { |
8221 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
8222 | .doit = nl80211_set_rekey_data, | |
8223 | .policy = nl80211_policy, | |
8224 | .flags = GENL_ADMIN_PERM, | |
8225 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
8226 | NL80211_FLAG_NEED_RTNL, | |
8227 | }, | |
109086ce AN |
8228 | { |
8229 | .cmd = NL80211_CMD_TDLS_MGMT, | |
8230 | .doit = nl80211_tdls_mgmt, | |
8231 | .policy = nl80211_policy, | |
8232 | .flags = GENL_ADMIN_PERM, | |
8233 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
8234 | NL80211_FLAG_NEED_RTNL, | |
8235 | }, | |
8236 | { | |
8237 | .cmd = NL80211_CMD_TDLS_OPER, | |
8238 | .doit = nl80211_tdls_oper, | |
8239 | .policy = nl80211_policy, | |
8240 | .flags = GENL_ADMIN_PERM, | |
8241 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
8242 | NL80211_FLAG_NEED_RTNL, | |
8243 | }, | |
28946da7 JB |
8244 | { |
8245 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
8246 | .doit = nl80211_register_unexpected_frame, | |
8247 | .policy = nl80211_policy, | |
8248 | .flags = GENL_ADMIN_PERM, | |
8249 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
8250 | NL80211_FLAG_NEED_RTNL, | |
8251 | }, | |
7f6cf311 JB |
8252 | { |
8253 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
8254 | .doit = nl80211_probe_client, | |
8255 | .policy = nl80211_policy, | |
8256 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 8257 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
7f6cf311 JB |
8258 | NL80211_FLAG_NEED_RTNL, |
8259 | }, | |
5e760230 JB |
8260 | { |
8261 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
8262 | .doit = nl80211_register_beacons, | |
8263 | .policy = nl80211_policy, | |
8264 | .flags = GENL_ADMIN_PERM, | |
8265 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
8266 | NL80211_FLAG_NEED_RTNL, | |
8267 | }, | |
1d9d9213 SW |
8268 | { |
8269 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
8270 | .doit = nl80211_set_noack_map, | |
8271 | .policy = nl80211_policy, | |
8272 | .flags = GENL_ADMIN_PERM, | |
8273 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
8274 | NL80211_FLAG_NEED_RTNL, | |
8275 | }, | |
98104fde JB |
8276 | { |
8277 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
8278 | .doit = nl80211_start_p2p_device, | |
8279 | .policy = nl80211_policy, | |
8280 | .flags = GENL_ADMIN_PERM, | |
8281 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
8282 | NL80211_FLAG_NEED_RTNL, | |
8283 | }, | |
8284 | { | |
8285 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
8286 | .doit = nl80211_stop_p2p_device, | |
8287 | .policy = nl80211_policy, | |
8288 | .flags = GENL_ADMIN_PERM, | |
8289 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
8290 | NL80211_FLAG_NEED_RTNL, | |
8291 | }, | |
f4e583c8 AQ |
8292 | { |
8293 | .cmd = NL80211_CMD_SET_MCAST_RATE, | |
8294 | .doit = nl80211_set_mcast_rate, | |
77765eaf VT |
8295 | .policy = nl80211_policy, |
8296 | .flags = GENL_ADMIN_PERM, | |
8297 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
8298 | NL80211_FLAG_NEED_RTNL, | |
8299 | }, | |
8300 | { | |
8301 | .cmd = NL80211_CMD_SET_MAC_ACL, | |
8302 | .doit = nl80211_set_mac_acl, | |
f4e583c8 AQ |
8303 | .policy = nl80211_policy, |
8304 | .flags = GENL_ADMIN_PERM, | |
8305 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
8306 | NL80211_FLAG_NEED_RTNL, | |
8307 | }, | |
55682965 | 8308 | }; |
9588bbd5 | 8309 | |
6039f6d2 JM |
8310 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
8311 | .name = "mlme", | |
8312 | }; | |
55682965 JB |
8313 | |
8314 | /* multicast groups */ | |
8315 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
8316 | .name = "config", | |
8317 | }; | |
2a519311 JB |
8318 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
8319 | .name = "scan", | |
8320 | }; | |
73d54c9e LR |
8321 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
8322 | .name = "regulatory", | |
8323 | }; | |
55682965 JB |
8324 | |
8325 | /* notification functions */ | |
8326 | ||
8327 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
8328 | { | |
8329 | struct sk_buff *msg; | |
8330 | ||
fd2120ca | 8331 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
8332 | if (!msg) |
8333 | return; | |
8334 | ||
8335 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
8336 | nlmsg_free(msg); | |
8337 | return; | |
8338 | } | |
8339 | ||
463d0183 JB |
8340 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8341 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
8342 | } |
8343 | ||
362a415d JB |
8344 | static int nl80211_add_scan_req(struct sk_buff *msg, |
8345 | struct cfg80211_registered_device *rdev) | |
8346 | { | |
8347 | struct cfg80211_scan_request *req = rdev->scan_req; | |
8348 | struct nlattr *nest; | |
8349 | int i; | |
8350 | ||
667503dd JB |
8351 | ASSERT_RDEV_LOCK(rdev); |
8352 | ||
362a415d JB |
8353 | if (WARN_ON(!req)) |
8354 | return 0; | |
8355 | ||
8356 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
8357 | if (!nest) | |
8358 | goto nla_put_failure; | |
9360ffd1 DM |
8359 | for (i = 0; i < req->n_ssids; i++) { |
8360 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
8361 | goto nla_put_failure; | |
8362 | } | |
362a415d JB |
8363 | nla_nest_end(msg, nest); |
8364 | ||
8365 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
8366 | if (!nest) | |
8367 | goto nla_put_failure; | |
9360ffd1 DM |
8368 | for (i = 0; i < req->n_channels; i++) { |
8369 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
8370 | goto nla_put_failure; | |
8371 | } | |
362a415d JB |
8372 | nla_nest_end(msg, nest); |
8373 | ||
9360ffd1 DM |
8374 | if (req->ie && |
8375 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
8376 | goto nla_put_failure; | |
362a415d | 8377 | |
ed473771 SL |
8378 | if (req->flags) |
8379 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags); | |
8380 | ||
362a415d JB |
8381 | return 0; |
8382 | nla_put_failure: | |
8383 | return -ENOBUFS; | |
8384 | } | |
8385 | ||
a538e2d5 JB |
8386 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
8387 | struct cfg80211_registered_device *rdev, | |
fd014284 | 8388 | struct wireless_dev *wdev, |
15e47304 | 8389 | u32 portid, u32 seq, int flags, |
a538e2d5 | 8390 | u32 cmd) |
2a519311 JB |
8391 | { |
8392 | void *hdr; | |
8393 | ||
15e47304 | 8394 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
2a519311 JB |
8395 | if (!hdr) |
8396 | return -1; | |
8397 | ||
9360ffd1 | 8398 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
fd014284 JB |
8399 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
8400 | wdev->netdev->ifindex)) || | |
8401 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
9360ffd1 | 8402 | goto nla_put_failure; |
2a519311 | 8403 | |
362a415d JB |
8404 | /* ignore errors and send incomplete event anyway */ |
8405 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
8406 | |
8407 | return genlmsg_end(msg, hdr); | |
8408 | ||
8409 | nla_put_failure: | |
8410 | genlmsg_cancel(msg, hdr); | |
8411 | return -EMSGSIZE; | |
8412 | } | |
8413 | ||
807f8a8c LC |
8414 | static int |
8415 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
8416 | struct cfg80211_registered_device *rdev, | |
8417 | struct net_device *netdev, | |
15e47304 | 8418 | u32 portid, u32 seq, int flags, u32 cmd) |
807f8a8c LC |
8419 | { |
8420 | void *hdr; | |
8421 | ||
15e47304 | 8422 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
807f8a8c LC |
8423 | if (!hdr) |
8424 | return -1; | |
8425 | ||
9360ffd1 DM |
8426 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8427 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8428 | goto nla_put_failure; | |
807f8a8c LC |
8429 | |
8430 | return genlmsg_end(msg, hdr); | |
8431 | ||
8432 | nla_put_failure: | |
8433 | genlmsg_cancel(msg, hdr); | |
8434 | return -EMSGSIZE; | |
8435 | } | |
8436 | ||
a538e2d5 | 8437 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
fd014284 | 8438 | struct wireless_dev *wdev) |
a538e2d5 JB |
8439 | { |
8440 | struct sk_buff *msg; | |
8441 | ||
58050fce | 8442 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
a538e2d5 JB |
8443 | if (!msg) |
8444 | return; | |
8445 | ||
fd014284 | 8446 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 JB |
8447 | NL80211_CMD_TRIGGER_SCAN) < 0) { |
8448 | nlmsg_free(msg); | |
8449 | return; | |
8450 | } | |
8451 | ||
463d0183 JB |
8452 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8453 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
8454 | } |
8455 | ||
2a519311 | 8456 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
fd014284 | 8457 | struct wireless_dev *wdev) |
2a519311 JB |
8458 | { |
8459 | struct sk_buff *msg; | |
8460 | ||
fd2120ca | 8461 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
8462 | if (!msg) |
8463 | return; | |
8464 | ||
fd014284 | 8465 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 | 8466 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { |
2a519311 JB |
8467 | nlmsg_free(msg); |
8468 | return; | |
8469 | } | |
8470 | ||
463d0183 JB |
8471 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8472 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
8473 | } |
8474 | ||
8475 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
fd014284 | 8476 | struct wireless_dev *wdev) |
2a519311 JB |
8477 | { |
8478 | struct sk_buff *msg; | |
8479 | ||
fd2120ca | 8480 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
8481 | if (!msg) |
8482 | return; | |
8483 | ||
fd014284 | 8484 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 | 8485 | NL80211_CMD_SCAN_ABORTED) < 0) { |
2a519311 JB |
8486 | nlmsg_free(msg); |
8487 | return; | |
8488 | } | |
8489 | ||
463d0183 JB |
8490 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8491 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
8492 | } |
8493 | ||
807f8a8c LC |
8494 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
8495 | struct net_device *netdev) | |
8496 | { | |
8497 | struct sk_buff *msg; | |
8498 | ||
8499 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8500 | if (!msg) | |
8501 | return; | |
8502 | ||
8503 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
8504 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
8505 | nlmsg_free(msg); | |
8506 | return; | |
8507 | } | |
8508 | ||
8509 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8510 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
8511 | } | |
8512 | ||
8513 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
8514 | struct net_device *netdev, u32 cmd) | |
8515 | { | |
8516 | struct sk_buff *msg; | |
8517 | ||
58050fce | 8518 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
807f8a8c LC |
8519 | if (!msg) |
8520 | return; | |
8521 | ||
8522 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
8523 | nlmsg_free(msg); | |
8524 | return; | |
8525 | } | |
8526 | ||
8527 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8528 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
8529 | } | |
8530 | ||
73d54c9e LR |
8531 | /* |
8532 | * This can happen on global regulatory changes or device specific settings | |
8533 | * based on custom world regulatory domains. | |
8534 | */ | |
8535 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
8536 | { | |
8537 | struct sk_buff *msg; | |
8538 | void *hdr; | |
8539 | ||
fd2120ca | 8540 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
8541 | if (!msg) |
8542 | return; | |
8543 | ||
8544 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
8545 | if (!hdr) { | |
8546 | nlmsg_free(msg); | |
8547 | return; | |
8548 | } | |
8549 | ||
8550 | /* Userspace can always count this one always being set */ | |
9360ffd1 DM |
8551 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
8552 | goto nla_put_failure; | |
8553 | ||
8554 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
8555 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
8556 | NL80211_REGDOM_TYPE_WORLD)) | |
8557 | goto nla_put_failure; | |
8558 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
8559 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
8560 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
8561 | goto nla_put_failure; | |
8562 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
8563 | request->intersect) { | |
8564 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
8565 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
8566 | goto nla_put_failure; | |
8567 | } else { | |
8568 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
8569 | NL80211_REGDOM_TYPE_COUNTRY) || | |
8570 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
8571 | request->alpha2)) | |
8572 | goto nla_put_failure; | |
8573 | } | |
8574 | ||
f4173766 | 8575 | if (request->wiphy_idx != WIPHY_IDX_INVALID && |
9360ffd1 DM |
8576 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) |
8577 | goto nla_put_failure; | |
73d54c9e | 8578 | |
3b7b72ee | 8579 | genlmsg_end(msg, hdr); |
73d54c9e | 8580 | |
bc43b28c | 8581 | rcu_read_lock(); |
463d0183 | 8582 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
8583 | GFP_ATOMIC); |
8584 | rcu_read_unlock(); | |
73d54c9e LR |
8585 | |
8586 | return; | |
8587 | ||
8588 | nla_put_failure: | |
8589 | genlmsg_cancel(msg, hdr); | |
8590 | nlmsg_free(msg); | |
8591 | } | |
8592 | ||
6039f6d2 JM |
8593 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
8594 | struct net_device *netdev, | |
8595 | const u8 *buf, size_t len, | |
e6d6e342 | 8596 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
8597 | { |
8598 | struct sk_buff *msg; | |
8599 | void *hdr; | |
8600 | ||
e6d6e342 | 8601 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
8602 | if (!msg) |
8603 | return; | |
8604 | ||
8605 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8606 | if (!hdr) { | |
8607 | nlmsg_free(msg); | |
8608 | return; | |
8609 | } | |
8610 | ||
9360ffd1 DM |
8611 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8612 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8613 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
8614 | goto nla_put_failure; | |
6039f6d2 | 8615 | |
3b7b72ee | 8616 | genlmsg_end(msg, hdr); |
6039f6d2 | 8617 | |
463d0183 JB |
8618 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8619 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
8620 | return; |
8621 | ||
8622 | nla_put_failure: | |
8623 | genlmsg_cancel(msg, hdr); | |
8624 | nlmsg_free(msg); | |
8625 | } | |
8626 | ||
8627 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
8628 | struct net_device *netdev, const u8 *buf, |
8629 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
8630 | { |
8631 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 8632 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
8633 | } |
8634 | ||
8635 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
8636 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 8637 | size_t len, gfp_t gfp) |
6039f6d2 | 8638 | { |
e6d6e342 JB |
8639 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
8640 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
8641 | } |
8642 | ||
53b46b84 | 8643 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
8644 | struct net_device *netdev, const u8 *buf, |
8645 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
8646 | { |
8647 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 8648 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
8649 | } |
8650 | ||
53b46b84 JM |
8651 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
8652 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 8653 | size_t len, gfp_t gfp) |
6039f6d2 JM |
8654 | { |
8655 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 8656 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
8657 | } |
8658 | ||
cf4e594e JM |
8659 | void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, |
8660 | struct net_device *netdev, const u8 *buf, | |
8661 | size_t len, gfp_t gfp) | |
8662 | { | |
8663 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
8664 | NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp); | |
8665 | } | |
8666 | ||
8667 | void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, | |
8668 | struct net_device *netdev, const u8 *buf, | |
8669 | size_t len, gfp_t gfp) | |
8670 | { | |
8671 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
8672 | NL80211_CMD_UNPROT_DISASSOCIATE, gfp); | |
8673 | } | |
8674 | ||
1b06bb40 LR |
8675 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
8676 | struct net_device *netdev, int cmd, | |
e6d6e342 | 8677 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
8678 | { |
8679 | struct sk_buff *msg; | |
8680 | void *hdr; | |
8681 | ||
e6d6e342 | 8682 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
8683 | if (!msg) |
8684 | return; | |
8685 | ||
8686 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8687 | if (!hdr) { | |
8688 | nlmsg_free(msg); | |
8689 | return; | |
8690 | } | |
8691 | ||
9360ffd1 DM |
8692 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8693 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8694 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
8695 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
8696 | goto nla_put_failure; | |
1965c853 | 8697 | |
3b7b72ee | 8698 | genlmsg_end(msg, hdr); |
1965c853 | 8699 | |
463d0183 JB |
8700 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8701 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
8702 | return; |
8703 | ||
8704 | nla_put_failure: | |
8705 | genlmsg_cancel(msg, hdr); | |
8706 | nlmsg_free(msg); | |
8707 | } | |
8708 | ||
8709 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
8710 | struct net_device *netdev, const u8 *addr, |
8711 | gfp_t gfp) | |
1965c853 JM |
8712 | { |
8713 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 8714 | addr, gfp); |
1965c853 JM |
8715 | } |
8716 | ||
8717 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
8718 | struct net_device *netdev, const u8 *addr, |
8719 | gfp_t gfp) | |
1965c853 | 8720 | { |
e6d6e342 JB |
8721 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
8722 | addr, gfp); | |
1965c853 JM |
8723 | } |
8724 | ||
b23aa676 SO |
8725 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
8726 | struct net_device *netdev, const u8 *bssid, | |
8727 | const u8 *req_ie, size_t req_ie_len, | |
8728 | const u8 *resp_ie, size_t resp_ie_len, | |
8729 | u16 status, gfp_t gfp) | |
8730 | { | |
8731 | struct sk_buff *msg; | |
8732 | void *hdr; | |
8733 | ||
58050fce | 8734 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
8735 | if (!msg) |
8736 | return; | |
8737 | ||
8738 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
8739 | if (!hdr) { | |
8740 | nlmsg_free(msg); | |
8741 | return; | |
8742 | } | |
8743 | ||
9360ffd1 DM |
8744 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8745 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8746 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
8747 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
8748 | (req_ie && | |
8749 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8750 | (resp_ie && | |
8751 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8752 | goto nla_put_failure; | |
b23aa676 | 8753 | |
3b7b72ee | 8754 | genlmsg_end(msg, hdr); |
b23aa676 | 8755 | |
463d0183 JB |
8756 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8757 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
8758 | return; |
8759 | ||
8760 | nla_put_failure: | |
8761 | genlmsg_cancel(msg, hdr); | |
8762 | nlmsg_free(msg); | |
8763 | ||
8764 | } | |
8765 | ||
8766 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
8767 | struct net_device *netdev, const u8 *bssid, | |
8768 | const u8 *req_ie, size_t req_ie_len, | |
8769 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
8770 | { | |
8771 | struct sk_buff *msg; | |
8772 | void *hdr; | |
8773 | ||
58050fce | 8774 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
8775 | if (!msg) |
8776 | return; | |
8777 | ||
8778 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
8779 | if (!hdr) { | |
8780 | nlmsg_free(msg); | |
8781 | return; | |
8782 | } | |
8783 | ||
9360ffd1 DM |
8784 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8785 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8786 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
8787 | (req_ie && | |
8788 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8789 | (resp_ie && | |
8790 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8791 | goto nla_put_failure; | |
b23aa676 | 8792 | |
3b7b72ee | 8793 | genlmsg_end(msg, hdr); |
b23aa676 | 8794 | |
463d0183 JB |
8795 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8796 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
8797 | return; |
8798 | ||
8799 | nla_put_failure: | |
8800 | genlmsg_cancel(msg, hdr); | |
8801 | nlmsg_free(msg); | |
8802 | ||
8803 | } | |
8804 | ||
8805 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
8806 | struct net_device *netdev, u16 reason, | |
667503dd | 8807 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
8808 | { |
8809 | struct sk_buff *msg; | |
8810 | void *hdr; | |
8811 | ||
58050fce | 8812 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
b23aa676 SO |
8813 | if (!msg) |
8814 | return; | |
8815 | ||
8816 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
8817 | if (!hdr) { | |
8818 | nlmsg_free(msg); | |
8819 | return; | |
8820 | } | |
8821 | ||
9360ffd1 DM |
8822 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8823 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8824 | (from_ap && reason && | |
8825 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
8826 | (from_ap && | |
8827 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
8828 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
8829 | goto nla_put_failure; | |
b23aa676 | 8830 | |
3b7b72ee | 8831 | genlmsg_end(msg, hdr); |
b23aa676 | 8832 | |
463d0183 JB |
8833 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8834 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
8835 | return; |
8836 | ||
8837 | nla_put_failure: | |
8838 | genlmsg_cancel(msg, hdr); | |
8839 | nlmsg_free(msg); | |
8840 | ||
8841 | } | |
8842 | ||
04a773ad JB |
8843 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
8844 | struct net_device *netdev, const u8 *bssid, | |
8845 | gfp_t gfp) | |
8846 | { | |
8847 | struct sk_buff *msg; | |
8848 | void *hdr; | |
8849 | ||
fd2120ca | 8850 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
8851 | if (!msg) |
8852 | return; | |
8853 | ||
8854 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
8855 | if (!hdr) { | |
8856 | nlmsg_free(msg); | |
8857 | return; | |
8858 | } | |
8859 | ||
9360ffd1 DM |
8860 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8861 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8862 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8863 | goto nla_put_failure; | |
04a773ad | 8864 | |
3b7b72ee | 8865 | genlmsg_end(msg, hdr); |
04a773ad | 8866 | |
463d0183 JB |
8867 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8868 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
8869 | return; |
8870 | ||
8871 | nla_put_failure: | |
8872 | genlmsg_cancel(msg, hdr); | |
8873 | nlmsg_free(msg); | |
8874 | } | |
8875 | ||
c93b5e71 JC |
8876 | void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev, |
8877 | struct net_device *netdev, | |
8878 | const u8 *macaddr, const u8* ie, u8 ie_len, | |
8879 | gfp_t gfp) | |
8880 | { | |
8881 | struct sk_buff *msg; | |
8882 | void *hdr; | |
8883 | ||
8884 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8885 | if (!msg) | |
8886 | return; | |
8887 | ||
8888 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
8889 | if (!hdr) { | |
8890 | nlmsg_free(msg); | |
8891 | return; | |
8892 | } | |
8893 | ||
9360ffd1 DM |
8894 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8895 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8896 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) || | |
8897 | (ie_len && ie && | |
8898 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
8899 | goto nla_put_failure; | |
c93b5e71 | 8900 | |
3b7b72ee | 8901 | genlmsg_end(msg, hdr); |
c93b5e71 JC |
8902 | |
8903 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8904 | nl80211_mlme_mcgrp.id, gfp); | |
8905 | return; | |
8906 | ||
8907 | nla_put_failure: | |
8908 | genlmsg_cancel(msg, hdr); | |
8909 | nlmsg_free(msg); | |
8910 | } | |
8911 | ||
a3b8b056 JM |
8912 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
8913 | struct net_device *netdev, const u8 *addr, | |
8914 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 8915 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
8916 | { |
8917 | struct sk_buff *msg; | |
8918 | void *hdr; | |
8919 | ||
e6d6e342 | 8920 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
8921 | if (!msg) |
8922 | return; | |
8923 | ||
8924 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
8925 | if (!hdr) { | |
8926 | nlmsg_free(msg); | |
8927 | return; | |
8928 | } | |
8929 | ||
9360ffd1 DM |
8930 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8931 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8932 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
8933 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
8934 | (key_id != -1 && | |
8935 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
8936 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
8937 | goto nla_put_failure; | |
a3b8b056 | 8938 | |
3b7b72ee | 8939 | genlmsg_end(msg, hdr); |
a3b8b056 | 8940 | |
463d0183 JB |
8941 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8942 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
8943 | return; |
8944 | ||
8945 | nla_put_failure: | |
8946 | genlmsg_cancel(msg, hdr); | |
8947 | nlmsg_free(msg); | |
8948 | } | |
8949 | ||
6bad8766 LR |
8950 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
8951 | struct ieee80211_channel *channel_before, | |
8952 | struct ieee80211_channel *channel_after) | |
8953 | { | |
8954 | struct sk_buff *msg; | |
8955 | void *hdr; | |
8956 | struct nlattr *nl_freq; | |
8957 | ||
fd2120ca | 8958 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
8959 | if (!msg) |
8960 | return; | |
8961 | ||
8962 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
8963 | if (!hdr) { | |
8964 | nlmsg_free(msg); | |
8965 | return; | |
8966 | } | |
8967 | ||
8968 | /* | |
8969 | * Since we are applying the beacon hint to a wiphy we know its | |
8970 | * wiphy_idx is valid | |
8971 | */ | |
9360ffd1 DM |
8972 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
8973 | goto nla_put_failure; | |
6bad8766 LR |
8974 | |
8975 | /* Before */ | |
8976 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
8977 | if (!nl_freq) | |
8978 | goto nla_put_failure; | |
8979 | if (nl80211_msg_put_channel(msg, channel_before)) | |
8980 | goto nla_put_failure; | |
8981 | nla_nest_end(msg, nl_freq); | |
8982 | ||
8983 | /* After */ | |
8984 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
8985 | if (!nl_freq) | |
8986 | goto nla_put_failure; | |
8987 | if (nl80211_msg_put_channel(msg, channel_after)) | |
8988 | goto nla_put_failure; | |
8989 | nla_nest_end(msg, nl_freq); | |
8990 | ||
3b7b72ee | 8991 | genlmsg_end(msg, hdr); |
6bad8766 | 8992 | |
463d0183 JB |
8993 | rcu_read_lock(); |
8994 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
8995 | GFP_ATOMIC); | |
8996 | rcu_read_unlock(); | |
6bad8766 LR |
8997 | |
8998 | return; | |
8999 | ||
9000 | nla_put_failure: | |
9001 | genlmsg_cancel(msg, hdr); | |
9002 | nlmsg_free(msg); | |
9003 | } | |
9004 | ||
9588bbd5 JM |
9005 | static void nl80211_send_remain_on_chan_event( |
9006 | int cmd, struct cfg80211_registered_device *rdev, | |
71bbc994 | 9007 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 | 9008 | struct ieee80211_channel *chan, |
9588bbd5 JM |
9009 | unsigned int duration, gfp_t gfp) |
9010 | { | |
9011 | struct sk_buff *msg; | |
9012 | void *hdr; | |
9013 | ||
9014 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
9015 | if (!msg) | |
9016 | return; | |
9017 | ||
9018 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
9019 | if (!hdr) { | |
9020 | nlmsg_free(msg); | |
9021 | return; | |
9022 | } | |
9023 | ||
9360ffd1 | 9024 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
9025 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
9026 | wdev->netdev->ifindex)) || | |
00f53350 | 9027 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 | 9028 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
42d97a59 JB |
9029 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
9030 | NL80211_CHAN_NO_HT) || | |
9360ffd1 DM |
9031 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
9032 | goto nla_put_failure; | |
9588bbd5 | 9033 | |
9360ffd1 DM |
9034 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
9035 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
9036 | goto nla_put_failure; | |
9588bbd5 | 9037 | |
3b7b72ee | 9038 | genlmsg_end(msg, hdr); |
9588bbd5 JM |
9039 | |
9040 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9041 | nl80211_mlme_mcgrp.id, gfp); | |
9042 | return; | |
9043 | ||
9044 | nla_put_failure: | |
9045 | genlmsg_cancel(msg, hdr); | |
9046 | nlmsg_free(msg); | |
9047 | } | |
9048 | ||
9049 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
71bbc994 | 9050 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 | 9051 | struct ieee80211_channel *chan, |
9588bbd5 JM |
9052 | unsigned int duration, gfp_t gfp) |
9053 | { | |
9054 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
71bbc994 | 9055 | rdev, wdev, cookie, chan, |
42d97a59 | 9056 | duration, gfp); |
9588bbd5 JM |
9057 | } |
9058 | ||
9059 | void nl80211_send_remain_on_channel_cancel( | |
71bbc994 JB |
9060 | struct cfg80211_registered_device *rdev, |
9061 | struct wireless_dev *wdev, | |
42d97a59 | 9062 | u64 cookie, struct ieee80211_channel *chan, gfp_t gfp) |
9588bbd5 JM |
9063 | { |
9064 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
42d97a59 | 9065 | rdev, wdev, cookie, chan, 0, gfp); |
9588bbd5 JM |
9066 | } |
9067 | ||
98b62183 JB |
9068 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
9069 | struct net_device *dev, const u8 *mac_addr, | |
9070 | struct station_info *sinfo, gfp_t gfp) | |
9071 | { | |
9072 | struct sk_buff *msg; | |
9073 | ||
58050fce | 9074 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
98b62183 JB |
9075 | if (!msg) |
9076 | return; | |
9077 | ||
66266b3a JL |
9078 | if (nl80211_send_station(msg, 0, 0, 0, |
9079 | rdev, dev, mac_addr, sinfo) < 0) { | |
98b62183 JB |
9080 | nlmsg_free(msg); |
9081 | return; | |
9082 | } | |
9083 | ||
9084 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9085 | nl80211_mlme_mcgrp.id, gfp); | |
9086 | } | |
9087 | ||
ec15e68b JM |
9088 | void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev, |
9089 | struct net_device *dev, const u8 *mac_addr, | |
9090 | gfp_t gfp) | |
9091 | { | |
9092 | struct sk_buff *msg; | |
9093 | void *hdr; | |
9094 | ||
58050fce | 9095 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
ec15e68b JM |
9096 | if (!msg) |
9097 | return; | |
9098 | ||
9099 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); | |
9100 | if (!hdr) { | |
9101 | nlmsg_free(msg); | |
9102 | return; | |
9103 | } | |
9104 | ||
9360ffd1 DM |
9105 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
9106 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
9107 | goto nla_put_failure; | |
ec15e68b | 9108 | |
3b7b72ee | 9109 | genlmsg_end(msg, hdr); |
ec15e68b JM |
9110 | |
9111 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9112 | nl80211_mlme_mcgrp.id, gfp); | |
9113 | return; | |
9114 | ||
9115 | nla_put_failure: | |
9116 | genlmsg_cancel(msg, hdr); | |
9117 | nlmsg_free(msg); | |
9118 | } | |
9119 | ||
ed44a951 PP |
9120 | void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev, |
9121 | struct net_device *dev, const u8 *mac_addr, | |
9122 | enum nl80211_connect_failed_reason reason, | |
9123 | gfp_t gfp) | |
9124 | { | |
9125 | struct sk_buff *msg; | |
9126 | void *hdr; | |
9127 | ||
9128 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
9129 | if (!msg) | |
9130 | return; | |
9131 | ||
9132 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
9133 | if (!hdr) { | |
9134 | nlmsg_free(msg); | |
9135 | return; | |
9136 | } | |
9137 | ||
9138 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
9139 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
9140 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
9141 | goto nla_put_failure; | |
9142 | ||
9143 | genlmsg_end(msg, hdr); | |
9144 | ||
9145 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9146 | nl80211_mlme_mcgrp.id, gfp); | |
9147 | return; | |
9148 | ||
9149 | nla_put_failure: | |
9150 | genlmsg_cancel(msg, hdr); | |
9151 | nlmsg_free(msg); | |
9152 | } | |
9153 | ||
b92ab5d8 JB |
9154 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
9155 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
9156 | { |
9157 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9158 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
9159 | struct sk_buff *msg; | |
9160 | void *hdr; | |
9161 | int err; | |
15e47304 | 9162 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); |
28946da7 | 9163 | |
15e47304 | 9164 | if (!nlportid) |
28946da7 JB |
9165 | return false; |
9166 | ||
9167 | msg = nlmsg_new(100, gfp); | |
9168 | if (!msg) | |
9169 | return true; | |
9170 | ||
b92ab5d8 | 9171 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
9172 | if (!hdr) { |
9173 | nlmsg_free(msg); | |
9174 | return true; | |
9175 | } | |
9176 | ||
9360ffd1 DM |
9177 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9178 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
9179 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
9180 | goto nla_put_failure; | |
28946da7 JB |
9181 | |
9182 | err = genlmsg_end(msg, hdr); | |
9183 | if (err < 0) { | |
9184 | nlmsg_free(msg); | |
9185 | return true; | |
9186 | } | |
9187 | ||
15e47304 | 9188 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
28946da7 JB |
9189 | return true; |
9190 | ||
9191 | nla_put_failure: | |
9192 | genlmsg_cancel(msg, hdr); | |
9193 | nlmsg_free(msg); | |
9194 | return true; | |
9195 | } | |
9196 | ||
b92ab5d8 JB |
9197 | bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp) |
9198 | { | |
9199 | return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
9200 | addr, gfp); | |
9201 | } | |
9202 | ||
9203 | bool nl80211_unexpected_4addr_frame(struct net_device *dev, | |
9204 | const u8 *addr, gfp_t gfp) | |
9205 | { | |
9206 | return __nl80211_unexpected_frame(dev, | |
9207 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
9208 | addr, gfp); | |
9209 | } | |
9210 | ||
2e161f78 | 9211 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
15e47304 | 9212 | struct wireless_dev *wdev, u32 nlportid, |
804483e9 JB |
9213 | int freq, int sig_dbm, |
9214 | const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 | 9215 | { |
71bbc994 | 9216 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
9217 | struct sk_buff *msg; |
9218 | void *hdr; | |
026331c4 JM |
9219 | |
9220 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
9221 | if (!msg) | |
9222 | return -ENOMEM; | |
9223 | ||
2e161f78 | 9224 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
9225 | if (!hdr) { |
9226 | nlmsg_free(msg); | |
9227 | return -ENOMEM; | |
9228 | } | |
9229 | ||
9360ffd1 | 9230 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
9231 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
9232 | netdev->ifindex)) || | |
9360ffd1 DM |
9233 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || |
9234 | (sig_dbm && | |
9235 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
9236 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
9237 | goto nla_put_failure; | |
026331c4 | 9238 | |
3b7b72ee | 9239 | genlmsg_end(msg, hdr); |
026331c4 | 9240 | |
15e47304 | 9241 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
026331c4 JM |
9242 | |
9243 | nla_put_failure: | |
9244 | genlmsg_cancel(msg, hdr); | |
9245 | nlmsg_free(msg); | |
9246 | return -ENOBUFS; | |
9247 | } | |
9248 | ||
2e161f78 | 9249 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
71bbc994 | 9250 | struct wireless_dev *wdev, u64 cookie, |
2e161f78 JB |
9251 | const u8 *buf, size_t len, bool ack, |
9252 | gfp_t gfp) | |
026331c4 | 9253 | { |
71bbc994 | 9254 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
9255 | struct sk_buff *msg; |
9256 | void *hdr; | |
9257 | ||
9258 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
9259 | if (!msg) | |
9260 | return; | |
9261 | ||
2e161f78 | 9262 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
9263 | if (!hdr) { |
9264 | nlmsg_free(msg); | |
9265 | return; | |
9266 | } | |
9267 | ||
9360ffd1 | 9268 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
9269 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
9270 | netdev->ifindex)) || | |
9360ffd1 DM |
9271 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
9272 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
9273 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
9274 | goto nla_put_failure; | |
026331c4 | 9275 | |
3b7b72ee | 9276 | genlmsg_end(msg, hdr); |
026331c4 JM |
9277 | |
9278 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
9279 | return; | |
9280 | ||
9281 | nla_put_failure: | |
9282 | genlmsg_cancel(msg, hdr); | |
9283 | nlmsg_free(msg); | |
9284 | } | |
9285 | ||
d6dc1a38 JO |
9286 | void |
9287 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
9288 | struct net_device *netdev, | |
9289 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
9290 | gfp_t gfp) | |
9291 | { | |
9292 | struct sk_buff *msg; | |
9293 | struct nlattr *pinfoattr; | |
9294 | void *hdr; | |
9295 | ||
58050fce | 9296 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
d6dc1a38 JO |
9297 | if (!msg) |
9298 | return; | |
9299 | ||
9300 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
9301 | if (!hdr) { | |
9302 | nlmsg_free(msg); | |
9303 | return; | |
9304 | } | |
9305 | ||
9360ffd1 DM |
9306 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9307 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
9308 | goto nla_put_failure; | |
d6dc1a38 JO |
9309 | |
9310 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
9311 | if (!pinfoattr) | |
9312 | goto nla_put_failure; | |
9313 | ||
9360ffd1 DM |
9314 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, |
9315 | rssi_event)) | |
9316 | goto nla_put_failure; | |
d6dc1a38 JO |
9317 | |
9318 | nla_nest_end(msg, pinfoattr); | |
9319 | ||
3b7b72ee | 9320 | genlmsg_end(msg, hdr); |
d6dc1a38 JO |
9321 | |
9322 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9323 | nl80211_mlme_mcgrp.id, gfp); | |
9324 | return; | |
9325 | ||
9326 | nla_put_failure: | |
9327 | genlmsg_cancel(msg, hdr); | |
9328 | nlmsg_free(msg); | |
9329 | } | |
9330 | ||
e5497d76 JB |
9331 | void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
9332 | struct net_device *netdev, const u8 *bssid, | |
9333 | const u8 *replay_ctr, gfp_t gfp) | |
9334 | { | |
9335 | struct sk_buff *msg; | |
9336 | struct nlattr *rekey_attr; | |
9337 | void *hdr; | |
9338 | ||
58050fce | 9339 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
e5497d76 JB |
9340 | if (!msg) |
9341 | return; | |
9342 | ||
9343 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
9344 | if (!hdr) { | |
9345 | nlmsg_free(msg); | |
9346 | return; | |
9347 | } | |
9348 | ||
9360ffd1 DM |
9349 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9350 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
9351 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
9352 | goto nla_put_failure; | |
e5497d76 JB |
9353 | |
9354 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
9355 | if (!rekey_attr) | |
9356 | goto nla_put_failure; | |
9357 | ||
9360ffd1 DM |
9358 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
9359 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
9360 | goto nla_put_failure; | |
e5497d76 JB |
9361 | |
9362 | nla_nest_end(msg, rekey_attr); | |
9363 | ||
3b7b72ee | 9364 | genlmsg_end(msg, hdr); |
e5497d76 JB |
9365 | |
9366 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9367 | nl80211_mlme_mcgrp.id, gfp); | |
9368 | return; | |
9369 | ||
9370 | nla_put_failure: | |
9371 | genlmsg_cancel(msg, hdr); | |
9372 | nlmsg_free(msg); | |
9373 | } | |
9374 | ||
c9df56b4 JM |
9375 | void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, |
9376 | struct net_device *netdev, int index, | |
9377 | const u8 *bssid, bool preauth, gfp_t gfp) | |
9378 | { | |
9379 | struct sk_buff *msg; | |
9380 | struct nlattr *attr; | |
9381 | void *hdr; | |
9382 | ||
58050fce | 9383 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c9df56b4 JM |
9384 | if (!msg) |
9385 | return; | |
9386 | ||
9387 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
9388 | if (!hdr) { | |
9389 | nlmsg_free(msg); | |
9390 | return; | |
9391 | } | |
9392 | ||
9360ffd1 DM |
9393 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9394 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
9395 | goto nla_put_failure; | |
c9df56b4 JM |
9396 | |
9397 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
9398 | if (!attr) | |
9399 | goto nla_put_failure; | |
9400 | ||
9360ffd1 DM |
9401 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
9402 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
9403 | (preauth && | |
9404 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
9405 | goto nla_put_failure; | |
c9df56b4 JM |
9406 | |
9407 | nla_nest_end(msg, attr); | |
9408 | ||
3b7b72ee | 9409 | genlmsg_end(msg, hdr); |
c9df56b4 JM |
9410 | |
9411 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9412 | nl80211_mlme_mcgrp.id, gfp); | |
9413 | return; | |
9414 | ||
9415 | nla_put_failure: | |
9416 | genlmsg_cancel(msg, hdr); | |
9417 | nlmsg_free(msg); | |
9418 | } | |
9419 | ||
5314526b | 9420 | void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, |
683b6d3b JB |
9421 | struct net_device *netdev, |
9422 | struct cfg80211_chan_def *chandef, gfp_t gfp) | |
5314526b TP |
9423 | { |
9424 | struct sk_buff *msg; | |
9425 | void *hdr; | |
9426 | ||
58050fce | 9427 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
5314526b TP |
9428 | if (!msg) |
9429 | return; | |
9430 | ||
9431 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); | |
9432 | if (!hdr) { | |
9433 | nlmsg_free(msg); | |
9434 | return; | |
9435 | } | |
9436 | ||
683b6d3b JB |
9437 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
9438 | goto nla_put_failure; | |
9439 | ||
9440 | if (nl80211_send_chandef(msg, chandef)) | |
7eab0f64 | 9441 | goto nla_put_failure; |
5314526b TP |
9442 | |
9443 | genlmsg_end(msg, hdr); | |
9444 | ||
9445 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9446 | nl80211_mlme_mcgrp.id, gfp); | |
9447 | return; | |
9448 | ||
9449 | nla_put_failure: | |
9450 | genlmsg_cancel(msg, hdr); | |
9451 | nlmsg_free(msg); | |
9452 | } | |
9453 | ||
84f10708 TP |
9454 | void |
9455 | nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev, | |
9456 | struct net_device *netdev, const u8 *peer, | |
9457 | u32 num_packets, u32 rate, u32 intvl, gfp_t gfp) | |
9458 | { | |
9459 | struct sk_buff *msg; | |
9460 | struct nlattr *pinfoattr; | |
9461 | void *hdr; | |
9462 | ||
9463 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
9464 | if (!msg) | |
9465 | return; | |
9466 | ||
9467 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
9468 | if (!hdr) { | |
9469 | nlmsg_free(msg); | |
9470 | return; | |
9471 | } | |
9472 | ||
9473 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
9474 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
9475 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
9476 | goto nla_put_failure; | |
9477 | ||
9478 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
9479 | if (!pinfoattr) | |
9480 | goto nla_put_failure; | |
9481 | ||
9482 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
9483 | goto nla_put_failure; | |
9484 | ||
9485 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
9486 | goto nla_put_failure; | |
9487 | ||
9488 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
9489 | goto nla_put_failure; | |
9490 | ||
9491 | nla_nest_end(msg, pinfoattr); | |
9492 | ||
9493 | genlmsg_end(msg, hdr); | |
9494 | ||
9495 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9496 | nl80211_mlme_mcgrp.id, gfp); | |
9497 | return; | |
9498 | ||
9499 | nla_put_failure: | |
9500 | genlmsg_cancel(msg, hdr); | |
9501 | nlmsg_free(msg); | |
9502 | } | |
9503 | ||
c063dbf5 JB |
9504 | void |
9505 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
9506 | struct net_device *netdev, const u8 *peer, | |
9507 | u32 num_packets, gfp_t gfp) | |
9508 | { | |
9509 | struct sk_buff *msg; | |
9510 | struct nlattr *pinfoattr; | |
9511 | void *hdr; | |
9512 | ||
58050fce | 9513 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c063dbf5 JB |
9514 | if (!msg) |
9515 | return; | |
9516 | ||
9517 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
9518 | if (!hdr) { | |
9519 | nlmsg_free(msg); | |
9520 | return; | |
9521 | } | |
9522 | ||
9360ffd1 DM |
9523 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9524 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
9525 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
9526 | goto nla_put_failure; | |
c063dbf5 JB |
9527 | |
9528 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
9529 | if (!pinfoattr) | |
9530 | goto nla_put_failure; | |
9531 | ||
9360ffd1 DM |
9532 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) |
9533 | goto nla_put_failure; | |
c063dbf5 JB |
9534 | |
9535 | nla_nest_end(msg, pinfoattr); | |
9536 | ||
3b7b72ee | 9537 | genlmsg_end(msg, hdr); |
c063dbf5 JB |
9538 | |
9539 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9540 | nl80211_mlme_mcgrp.id, gfp); | |
9541 | return; | |
9542 | ||
9543 | nla_put_failure: | |
9544 | genlmsg_cancel(msg, hdr); | |
9545 | nlmsg_free(msg); | |
9546 | } | |
9547 | ||
7f6cf311 JB |
9548 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
9549 | u64 cookie, bool acked, gfp_t gfp) | |
9550 | { | |
9551 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9552 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
9553 | struct sk_buff *msg; | |
9554 | void *hdr; | |
9555 | int err; | |
9556 | ||
4ee3e063 BL |
9557 | trace_cfg80211_probe_status(dev, addr, cookie, acked); |
9558 | ||
58050fce | 9559 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
4ee3e063 | 9560 | |
7f6cf311 JB |
9561 | if (!msg) |
9562 | return; | |
9563 | ||
9564 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
9565 | if (!hdr) { | |
9566 | nlmsg_free(msg); | |
9567 | return; | |
9568 | } | |
9569 | ||
9360ffd1 DM |
9570 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9571 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
9572 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
9573 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
9574 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
9575 | goto nla_put_failure; | |
7f6cf311 JB |
9576 | |
9577 | err = genlmsg_end(msg, hdr); | |
9578 | if (err < 0) { | |
9579 | nlmsg_free(msg); | |
9580 | return; | |
9581 | } | |
9582 | ||
9583 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9584 | nl80211_mlme_mcgrp.id, gfp); | |
9585 | return; | |
9586 | ||
9587 | nla_put_failure: | |
9588 | genlmsg_cancel(msg, hdr); | |
9589 | nlmsg_free(msg); | |
9590 | } | |
9591 | EXPORT_SYMBOL(cfg80211_probe_status); | |
9592 | ||
5e760230 JB |
9593 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
9594 | const u8 *frame, size_t len, | |
37c73b5f | 9595 | int freq, int sig_dbm) |
5e760230 JB |
9596 | { |
9597 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
9598 | struct sk_buff *msg; | |
9599 | void *hdr; | |
37c73b5f | 9600 | struct cfg80211_beacon_registration *reg; |
5e760230 | 9601 | |
4ee3e063 BL |
9602 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); |
9603 | ||
37c73b5f BG |
9604 | spin_lock_bh(&rdev->beacon_registrations_lock); |
9605 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
9606 | msg = nlmsg_new(len + 100, GFP_ATOMIC); | |
9607 | if (!msg) { | |
9608 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
9609 | return; | |
9610 | } | |
5e760230 | 9611 | |
37c73b5f BG |
9612 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
9613 | if (!hdr) | |
9614 | goto nla_put_failure; | |
5e760230 | 9615 | |
37c73b5f BG |
9616 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9617 | (freq && | |
9618 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
9619 | (sig_dbm && | |
9620 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
9621 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
9622 | goto nla_put_failure; | |
5e760230 | 9623 | |
37c73b5f | 9624 | genlmsg_end(msg, hdr); |
5e760230 | 9625 | |
37c73b5f BG |
9626 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid); |
9627 | } | |
9628 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
5e760230 JB |
9629 | return; |
9630 | ||
9631 | nla_put_failure: | |
37c73b5f BG |
9632 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
9633 | if (hdr) | |
9634 | genlmsg_cancel(msg, hdr); | |
5e760230 JB |
9635 | nlmsg_free(msg); |
9636 | } | |
9637 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
9638 | ||
cd8f7cb4 JB |
9639 | #ifdef CONFIG_PM |
9640 | void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, | |
9641 | struct cfg80211_wowlan_wakeup *wakeup, | |
9642 | gfp_t gfp) | |
9643 | { | |
9644 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
9645 | struct sk_buff *msg; | |
9646 | void *hdr; | |
9647 | int err, size = 200; | |
9648 | ||
9649 | trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup); | |
9650 | ||
9651 | if (wakeup) | |
9652 | size += wakeup->packet_present_len; | |
9653 | ||
9654 | msg = nlmsg_new(size, gfp); | |
9655 | if (!msg) | |
9656 | return; | |
9657 | ||
9658 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN); | |
9659 | if (!hdr) | |
9660 | goto free_msg; | |
9661 | ||
9662 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
9663 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
9664 | goto free_msg; | |
9665 | ||
9666 | if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
9667 | wdev->netdev->ifindex)) | |
9668 | goto free_msg; | |
9669 | ||
9670 | if (wakeup) { | |
9671 | struct nlattr *reasons; | |
9672 | ||
9673 | reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
9674 | ||
9675 | if (wakeup->disconnect && | |
9676 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) | |
9677 | goto free_msg; | |
9678 | if (wakeup->magic_pkt && | |
9679 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) | |
9680 | goto free_msg; | |
9681 | if (wakeup->gtk_rekey_failure && | |
9682 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) | |
9683 | goto free_msg; | |
9684 | if (wakeup->eap_identity_req && | |
9685 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) | |
9686 | goto free_msg; | |
9687 | if (wakeup->four_way_handshake && | |
9688 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) | |
9689 | goto free_msg; | |
9690 | if (wakeup->rfkill_release && | |
9691 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)) | |
9692 | goto free_msg; | |
9693 | ||
9694 | if (wakeup->pattern_idx >= 0 && | |
9695 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
9696 | wakeup->pattern_idx)) | |
9697 | goto free_msg; | |
9698 | ||
2a0e047e JB |
9699 | if (wakeup->tcp_match) |
9700 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH); | |
9701 | ||
9702 | if (wakeup->tcp_connlost) | |
9703 | nla_put_flag(msg, | |
9704 | NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST); | |
9705 | ||
9706 | if (wakeup->tcp_nomoretokens) | |
9707 | nla_put_flag(msg, | |
9708 | NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS); | |
9709 | ||
cd8f7cb4 JB |
9710 | if (wakeup->packet) { |
9711 | u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; | |
9712 | u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; | |
9713 | ||
9714 | if (!wakeup->packet_80211) { | |
9715 | pkt_attr = | |
9716 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023; | |
9717 | len_attr = | |
9718 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN; | |
9719 | } | |
9720 | ||
9721 | if (wakeup->packet_len && | |
9722 | nla_put_u32(msg, len_attr, wakeup->packet_len)) | |
9723 | goto free_msg; | |
9724 | ||
9725 | if (nla_put(msg, pkt_attr, wakeup->packet_present_len, | |
9726 | wakeup->packet)) | |
9727 | goto free_msg; | |
9728 | } | |
9729 | ||
9730 | nla_nest_end(msg, reasons); | |
9731 | } | |
9732 | ||
9733 | err = genlmsg_end(msg, hdr); | |
9734 | if (err < 0) | |
9735 | goto free_msg; | |
9736 | ||
9737 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9738 | nl80211_mlme_mcgrp.id, gfp); | |
9739 | return; | |
9740 | ||
9741 | free_msg: | |
9742 | nlmsg_free(msg); | |
9743 | } | |
9744 | EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup); | |
9745 | #endif | |
9746 | ||
3475b094 JM |
9747 | void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, |
9748 | enum nl80211_tdls_operation oper, | |
9749 | u16 reason_code, gfp_t gfp) | |
9750 | { | |
9751 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9752 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
9753 | struct sk_buff *msg; | |
9754 | void *hdr; | |
9755 | int err; | |
9756 | ||
9757 | trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper, | |
9758 | reason_code); | |
9759 | ||
9760 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
9761 | if (!msg) | |
9762 | return; | |
9763 | ||
9764 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER); | |
9765 | if (!hdr) { | |
9766 | nlmsg_free(msg); | |
9767 | return; | |
9768 | } | |
9769 | ||
9770 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
9771 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
9772 | nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) || | |
9773 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) || | |
9774 | (reason_code > 0 && | |
9775 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) | |
9776 | goto nla_put_failure; | |
9777 | ||
9778 | err = genlmsg_end(msg, hdr); | |
9779 | if (err < 0) { | |
9780 | nlmsg_free(msg); | |
9781 | return; | |
9782 | } | |
9783 | ||
9784 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
9785 | nl80211_mlme_mcgrp.id, gfp); | |
9786 | return; | |
9787 | ||
9788 | nla_put_failure: | |
9789 | genlmsg_cancel(msg, hdr); | |
9790 | nlmsg_free(msg); | |
9791 | } | |
9792 | EXPORT_SYMBOL(cfg80211_tdls_oper_request); | |
9793 | ||
026331c4 JM |
9794 | static int nl80211_netlink_notify(struct notifier_block * nb, |
9795 | unsigned long state, | |
9796 | void *_notify) | |
9797 | { | |
9798 | struct netlink_notify *notify = _notify; | |
9799 | struct cfg80211_registered_device *rdev; | |
9800 | struct wireless_dev *wdev; | |
37c73b5f | 9801 | struct cfg80211_beacon_registration *reg, *tmp; |
026331c4 JM |
9802 | |
9803 | if (state != NETLINK_URELEASE) | |
9804 | return NOTIFY_DONE; | |
9805 | ||
9806 | rcu_read_lock(); | |
9807 | ||
5e760230 | 9808 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
89a54e48 | 9809 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) |
15e47304 | 9810 | cfg80211_mlme_unregister_socket(wdev, notify->portid); |
37c73b5f BG |
9811 | |
9812 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
9813 | list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, | |
9814 | list) { | |
9815 | if (reg->nlportid == notify->portid) { | |
9816 | list_del(®->list); | |
9817 | kfree(reg); | |
9818 | break; | |
9819 | } | |
9820 | } | |
9821 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
5e760230 | 9822 | } |
026331c4 JM |
9823 | |
9824 | rcu_read_unlock(); | |
9825 | ||
9826 | return NOTIFY_DONE; | |
9827 | } | |
9828 | ||
9829 | static struct notifier_block nl80211_netlink_notifier = { | |
9830 | .notifier_call = nl80211_netlink_notify, | |
9831 | }; | |
9832 | ||
55682965 JB |
9833 | /* initialisation/exit functions */ |
9834 | ||
9835 | int nl80211_init(void) | |
9836 | { | |
0d63cbb5 | 9837 | int err; |
55682965 | 9838 | |
0d63cbb5 MM |
9839 | err = genl_register_family_with_ops(&nl80211_fam, |
9840 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
9841 | if (err) |
9842 | return err; | |
9843 | ||
55682965 JB |
9844 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
9845 | if (err) | |
9846 | goto err_out; | |
9847 | ||
2a519311 JB |
9848 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
9849 | if (err) | |
9850 | goto err_out; | |
9851 | ||
73d54c9e LR |
9852 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
9853 | if (err) | |
9854 | goto err_out; | |
9855 | ||
6039f6d2 JM |
9856 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
9857 | if (err) | |
9858 | goto err_out; | |
9859 | ||
aff89a9b JB |
9860 | #ifdef CONFIG_NL80211_TESTMODE |
9861 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
9862 | if (err) | |
9863 | goto err_out; | |
9864 | #endif | |
9865 | ||
026331c4 JM |
9866 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
9867 | if (err) | |
9868 | goto err_out; | |
9869 | ||
55682965 JB |
9870 | return 0; |
9871 | err_out: | |
9872 | genl_unregister_family(&nl80211_fam); | |
9873 | return err; | |
9874 | } | |
9875 | ||
9876 | void nl80211_exit(void) | |
9877 | { | |
026331c4 | 9878 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
9879 | genl_unregister_family(&nl80211_fam); |
9880 | } |