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1 | /* | |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> | |
5 | */ | |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
10 | #include <linux/slab.h> | |
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> | |
17 | #include <linux/etherdevice.h> | |
18 | #include <net/net_namespace.h> | |
19 | #include <net/genetlink.h> | |
20 | #include <net/cfg80211.h> | |
21 | #include <net/sock.h> | |
22 | #include "core.h" | |
23 | #include "nl80211.h" | |
24 | #include "reg.h" | |
25 | #include "rdev-ops.h" | |
26 | ||
27 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, | |
28 | struct genl_info *info, | |
29 | struct cfg80211_crypto_settings *settings, | |
30 | int cipher_limit); | |
31 | ||
32 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
33 | struct genl_info *info); | |
34 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
35 | struct genl_info *info); | |
36 | ||
37 | /* the netlink family */ | |
38 | static struct genl_family nl80211_fam = { | |
39 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
40 | .name = "nl80211", /* have users key off the name instead */ | |
41 | .hdrsize = 0, /* no private header */ | |
42 | .version = 1, /* no particular meaning now */ | |
43 | .maxattr = NL80211_ATTR_MAX, | |
44 | .netnsok = true, | |
45 | .pre_doit = nl80211_pre_doit, | |
46 | .post_doit = nl80211_post_doit, | |
47 | }; | |
48 | ||
49 | /* returns ERR_PTR values */ | |
50 | static struct wireless_dev * | |
51 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
52 | { | |
53 | struct cfg80211_registered_device *rdev; | |
54 | struct wireless_dev *result = NULL; | |
55 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; | |
56 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; | |
57 | u64 wdev_id; | |
58 | int wiphy_idx = -1; | |
59 | int ifidx = -1; | |
60 | ||
61 | assert_cfg80211_lock(); | |
62 | ||
63 | if (!have_ifidx && !have_wdev_id) | |
64 | return ERR_PTR(-EINVAL); | |
65 | ||
66 | if (have_ifidx) | |
67 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
68 | if (have_wdev_id) { | |
69 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
70 | wiphy_idx = wdev_id >> 32; | |
71 | } | |
72 | ||
73 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
74 | struct wireless_dev *wdev; | |
75 | ||
76 | if (wiphy_net(&rdev->wiphy) != netns) | |
77 | continue; | |
78 | ||
79 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) | |
80 | continue; | |
81 | ||
82 | mutex_lock(&rdev->devlist_mtx); | |
83 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
84 | if (have_ifidx && wdev->netdev && | |
85 | wdev->netdev->ifindex == ifidx) { | |
86 | result = wdev; | |
87 | break; | |
88 | } | |
89 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { | |
90 | result = wdev; | |
91 | break; | |
92 | } | |
93 | } | |
94 | mutex_unlock(&rdev->devlist_mtx); | |
95 | ||
96 | if (result) | |
97 | break; | |
98 | } | |
99 | ||
100 | if (result) | |
101 | return result; | |
102 | return ERR_PTR(-ENODEV); | |
103 | } | |
104 | ||
105 | static struct cfg80211_registered_device * | |
106 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
107 | { | |
108 | struct cfg80211_registered_device *rdev = NULL, *tmp; | |
109 | struct net_device *netdev; | |
110 | ||
111 | assert_cfg80211_lock(); | |
112 | ||
113 | if (!attrs[NL80211_ATTR_WIPHY] && | |
114 | !attrs[NL80211_ATTR_IFINDEX] && | |
115 | !attrs[NL80211_ATTR_WDEV]) | |
116 | return ERR_PTR(-EINVAL); | |
117 | ||
118 | if (attrs[NL80211_ATTR_WIPHY]) | |
119 | rdev = cfg80211_rdev_by_wiphy_idx( | |
120 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); | |
121 | ||
122 | if (attrs[NL80211_ATTR_WDEV]) { | |
123 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
124 | struct wireless_dev *wdev; | |
125 | bool found = false; | |
126 | ||
127 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
128 | if (tmp) { | |
129 | /* make sure wdev exists */ | |
130 | mutex_lock(&tmp->devlist_mtx); | |
131 | list_for_each_entry(wdev, &tmp->wdev_list, list) { | |
132 | if (wdev->identifier != (u32)wdev_id) | |
133 | continue; | |
134 | found = true; | |
135 | break; | |
136 | } | |
137 | mutex_unlock(&tmp->devlist_mtx); | |
138 | ||
139 | if (!found) | |
140 | tmp = NULL; | |
141 | ||
142 | if (rdev && tmp != rdev) | |
143 | return ERR_PTR(-EINVAL); | |
144 | rdev = tmp; | |
145 | } | |
146 | } | |
147 | ||
148 | if (attrs[NL80211_ATTR_IFINDEX]) { | |
149 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
150 | netdev = dev_get_by_index(netns, ifindex); | |
151 | if (netdev) { | |
152 | if (netdev->ieee80211_ptr) | |
153 | tmp = wiphy_to_dev( | |
154 | netdev->ieee80211_ptr->wiphy); | |
155 | else | |
156 | tmp = NULL; | |
157 | ||
158 | dev_put(netdev); | |
159 | ||
160 | /* not wireless device -- return error */ | |
161 | if (!tmp) | |
162 | return ERR_PTR(-EINVAL); | |
163 | ||
164 | /* mismatch -- return error */ | |
165 | if (rdev && tmp != rdev) | |
166 | return ERR_PTR(-EINVAL); | |
167 | ||
168 | rdev = tmp; | |
169 | } | |
170 | } | |
171 | ||
172 | if (!rdev) | |
173 | return ERR_PTR(-ENODEV); | |
174 | ||
175 | if (netns != wiphy_net(&rdev->wiphy)) | |
176 | return ERR_PTR(-ENODEV); | |
177 | ||
178 | return rdev; | |
179 | } | |
180 | ||
181 | /* | |
182 | * This function returns a pointer to the driver | |
183 | * that the genl_info item that is passed refers to. | |
184 | * If successful, it returns non-NULL and also locks | |
185 | * the driver's mutex! | |
186 | * | |
187 | * This means that you need to call cfg80211_unlock_rdev() | |
188 | * before being allowed to acquire &cfg80211_mutex! | |
189 | * | |
190 | * This is necessary because we need to lock the global | |
191 | * mutex to get an item off the list safely, and then | |
192 | * we lock the rdev mutex so it doesn't go away under us. | |
193 | * | |
194 | * We don't want to keep cfg80211_mutex locked | |
195 | * for all the time in order to allow requests on | |
196 | * other interfaces to go through at the same time. | |
197 | * | |
198 | * The result of this can be a PTR_ERR and hence must | |
199 | * be checked with IS_ERR() for errors. | |
200 | */ | |
201 | static struct cfg80211_registered_device * | |
202 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) | |
203 | { | |
204 | struct cfg80211_registered_device *rdev; | |
205 | ||
206 | mutex_lock(&cfg80211_mutex); | |
207 | rdev = __cfg80211_rdev_from_attrs(netns, info->attrs); | |
208 | ||
209 | /* if it is not an error we grab the lock on | |
210 | * it to assure it won't be going away while | |
211 | * we operate on it */ | |
212 | if (!IS_ERR(rdev)) | |
213 | mutex_lock(&rdev->mtx); | |
214 | ||
215 | mutex_unlock(&cfg80211_mutex); | |
216 | ||
217 | return rdev; | |
218 | } | |
219 | ||
220 | /* policy for the attributes */ | |
221 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { | |
222 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
223 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
224 | .len = 20-1 }, | |
225 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, | |
226 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, | |
227 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, | |
228 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, | |
229 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
230 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
231 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
232 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, | |
233 | ||
234 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
235 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
236 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
237 | ||
238 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, | |
239 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
240 | ||
241 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, | |
242 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
243 | .len = WLAN_MAX_KEY_LEN }, | |
244 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
245 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
246 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
247 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, | |
248 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, | |
249 | ||
250 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
251 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
252 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
253 | .len = IEEE80211_MAX_DATA_LEN }, | |
254 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
255 | .len = IEEE80211_MAX_DATA_LEN }, | |
256 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, | |
257 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
258 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
259 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
260 | .len = NL80211_MAX_SUPP_RATES }, | |
261 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, | |
262 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, | |
263 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, | |
264 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, | |
265 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
266 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
267 | ||
268 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, | |
269 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
270 | ||
271 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, | |
272 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
273 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
274 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, | |
275 | .len = NL80211_MAX_SUPP_RATES }, | |
276 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, | |
277 | ||
278 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, | |
279 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, | |
280 | ||
281 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, | |
282 | ||
283 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
284 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
285 | .len = IEEE80211_MAX_DATA_LEN }, | |
286 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, | |
287 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
288 | ||
289 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
290 | .len = IEEE80211_MAX_SSID_LEN }, | |
291 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
292 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
293 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, | |
294 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, | |
295 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, | |
296 | [NL80211_ATTR_STA_FLAGS2] = { | |
297 | .len = sizeof(struct nl80211_sta_flag_update), | |
298 | }, | |
299 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, | |
300 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, | |
301 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
302 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, | |
303 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
304 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
305 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, | |
306 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, | |
307 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, | |
308 | .len = WLAN_PMKID_LEN }, | |
309 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, | |
310 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
311 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, | |
312 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, | |
313 | .len = IEEE80211_MAX_DATA_LEN }, | |
314 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
315 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, | |
316 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, | |
317 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, | |
318 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, | |
319 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, | |
320 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
321 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, | |
322 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, | |
323 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
324 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, | |
325 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, | |
326 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, | |
327 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, | |
328 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, | |
329 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, | |
330 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, | |
331 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, | |
332 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, | |
333 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, | |
334 | .len = IEEE80211_MAX_DATA_LEN }, | |
335 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
336 | .len = IEEE80211_MAX_DATA_LEN }, | |
337 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, | |
338 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, | |
339 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, | |
340 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, | |
341 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
342 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
343 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
344 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
345 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, | |
346 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, | |
347 | .len = IEEE80211_MAX_DATA_LEN }, | |
348 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, | |
349 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, | |
350 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
351 | .len = NL80211_HT_CAPABILITY_LEN | |
352 | }, | |
353 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, | |
354 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, | |
355 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, | |
356 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, | |
357 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, | |
358 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, | |
359 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, | |
360 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, | |
361 | }; | |
362 | ||
363 | /* policy for the key attributes */ | |
364 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { | |
365 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, | |
366 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, | |
367 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
368 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, | |
369 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
370 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
371 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, | |
372 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, | |
373 | }; | |
374 | ||
375 | /* policy for the key default flags */ | |
376 | static const struct nla_policy | |
377 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
378 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
379 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
380 | }; | |
381 | ||
382 | /* policy for WoWLAN attributes */ | |
383 | static const struct nla_policy | |
384 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
385 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
386 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
387 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
388 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
389 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, | |
390 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
391 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
392 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
393 | }; | |
394 | ||
395 | /* policy for GTK rekey offload attributes */ | |
396 | static const struct nla_policy | |
397 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
398 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
399 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
400 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
401 | }; | |
402 | ||
403 | static const struct nla_policy | |
404 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
405 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, | |
406 | .len = IEEE80211_MAX_SSID_LEN }, | |
407 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, | |
408 | }; | |
409 | ||
410 | /* ifidx get helper */ | |
411 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
412 | { | |
413 | int res; | |
414 | ||
415 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
416 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
417 | nl80211_policy); | |
418 | if (res) | |
419 | return res; | |
420 | ||
421 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
422 | return -EINVAL; | |
423 | ||
424 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
425 | if (!res) | |
426 | return -EINVAL; | |
427 | return res; | |
428 | } | |
429 | ||
430 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, | |
431 | struct netlink_callback *cb, | |
432 | struct cfg80211_registered_device **rdev, | |
433 | struct net_device **dev) | |
434 | { | |
435 | int ifidx = cb->args[0]; | |
436 | int err; | |
437 | ||
438 | if (!ifidx) | |
439 | ifidx = nl80211_get_ifidx(cb); | |
440 | if (ifidx < 0) | |
441 | return ifidx; | |
442 | ||
443 | cb->args[0] = ifidx; | |
444 | ||
445 | rtnl_lock(); | |
446 | ||
447 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
448 | if (!*dev) { | |
449 | err = -ENODEV; | |
450 | goto out_rtnl; | |
451 | } | |
452 | ||
453 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
454 | if (IS_ERR(*rdev)) { | |
455 | err = PTR_ERR(*rdev); | |
456 | goto out_rtnl; | |
457 | } | |
458 | ||
459 | return 0; | |
460 | out_rtnl: | |
461 | rtnl_unlock(); | |
462 | return err; | |
463 | } | |
464 | ||
465 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
466 | { | |
467 | cfg80211_unlock_rdev(rdev); | |
468 | rtnl_unlock(); | |
469 | } | |
470 | ||
471 | /* IE validation */ | |
472 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
473 | { | |
474 | const u8 *pos; | |
475 | int len; | |
476 | ||
477 | if (!attr) | |
478 | return true; | |
479 | ||
480 | pos = nla_data(attr); | |
481 | len = nla_len(attr); | |
482 | ||
483 | while (len) { | |
484 | u8 elemlen; | |
485 | ||
486 | if (len < 2) | |
487 | return false; | |
488 | len -= 2; | |
489 | ||
490 | elemlen = pos[1]; | |
491 | if (elemlen > len) | |
492 | return false; | |
493 | ||
494 | len -= elemlen; | |
495 | pos += 2 + elemlen; | |
496 | } | |
497 | ||
498 | return true; | |
499 | } | |
500 | ||
501 | /* message building helper */ | |
502 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, | |
503 | int flags, u8 cmd) | |
504 | { | |
505 | /* since there is no private header just add the generic one */ | |
506 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); | |
507 | } | |
508 | ||
509 | static int nl80211_msg_put_channel(struct sk_buff *msg, | |
510 | struct ieee80211_channel *chan) | |
511 | { | |
512 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
513 | chan->center_freq)) | |
514 | goto nla_put_failure; | |
515 | ||
516 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && | |
517 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
518 | goto nla_put_failure; | |
519 | if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) && | |
520 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN)) | |
521 | goto nla_put_failure; | |
522 | if ((chan->flags & IEEE80211_CHAN_NO_IBSS) && | |
523 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
524 | goto nla_put_failure; | |
525 | if ((chan->flags & IEEE80211_CHAN_RADAR) && | |
526 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
527 | goto nla_put_failure; | |
528 | ||
529 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
530 | DBM_TO_MBM(chan->max_power))) | |
531 | goto nla_put_failure; | |
532 | ||
533 | return 0; | |
534 | ||
535 | nla_put_failure: | |
536 | return -ENOBUFS; | |
537 | } | |
538 | ||
539 | /* netlink command implementations */ | |
540 | ||
541 | struct key_parse { | |
542 | struct key_params p; | |
543 | int idx; | |
544 | int type; | |
545 | bool def, defmgmt; | |
546 | bool def_uni, def_multi; | |
547 | }; | |
548 | ||
549 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
550 | { | |
551 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
552 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
553 | nl80211_key_policy); | |
554 | if (err) | |
555 | return err; | |
556 | ||
557 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
558 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
559 | ||
560 | if (k->def) { | |
561 | k->def_uni = true; | |
562 | k->def_multi = true; | |
563 | } | |
564 | if (k->defmgmt) | |
565 | k->def_multi = true; | |
566 | ||
567 | if (tb[NL80211_KEY_IDX]) | |
568 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
569 | ||
570 | if (tb[NL80211_KEY_DATA]) { | |
571 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
572 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
573 | } | |
574 | ||
575 | if (tb[NL80211_KEY_SEQ]) { | |
576 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
577 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
578 | } | |
579 | ||
580 | if (tb[NL80211_KEY_CIPHER]) | |
581 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
582 | ||
583 | if (tb[NL80211_KEY_TYPE]) { | |
584 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
585 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
586 | return -EINVAL; | |
587 | } | |
588 | ||
589 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { | |
590 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
591 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
592 | tb[NL80211_KEY_DEFAULT_TYPES], | |
593 | nl80211_key_default_policy); | |
594 | if (err) | |
595 | return err; | |
596 | ||
597 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
598 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
599 | } | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
605 | { | |
606 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
607 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
608 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
609 | } | |
610 | ||
611 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
612 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
613 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
614 | } | |
615 | ||
616 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
617 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
618 | ||
619 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
620 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
621 | ||
622 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
623 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
624 | ||
625 | if (k->def) { | |
626 | k->def_uni = true; | |
627 | k->def_multi = true; | |
628 | } | |
629 | if (k->defmgmt) | |
630 | k->def_multi = true; | |
631 | ||
632 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
633 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
634 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
635 | return -EINVAL; | |
636 | } | |
637 | ||
638 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { | |
639 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
640 | int err = nla_parse_nested( | |
641 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
642 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
643 | nl80211_key_default_policy); | |
644 | if (err) | |
645 | return err; | |
646 | ||
647 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
648 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
649 | } | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
655 | { | |
656 | int err; | |
657 | ||
658 | memset(k, 0, sizeof(*k)); | |
659 | k->idx = -1; | |
660 | k->type = -1; | |
661 | ||
662 | if (info->attrs[NL80211_ATTR_KEY]) | |
663 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
664 | else | |
665 | err = nl80211_parse_key_old(info, k); | |
666 | ||
667 | if (err) | |
668 | return err; | |
669 | ||
670 | if (k->def && k->defmgmt) | |
671 | return -EINVAL; | |
672 | ||
673 | if (k->defmgmt) { | |
674 | if (k->def_uni || !k->def_multi) | |
675 | return -EINVAL; | |
676 | } | |
677 | ||
678 | if (k->idx != -1) { | |
679 | if (k->defmgmt) { | |
680 | if (k->idx < 4 || k->idx > 5) | |
681 | return -EINVAL; | |
682 | } else if (k->def) { | |
683 | if (k->idx < 0 || k->idx > 3) | |
684 | return -EINVAL; | |
685 | } else { | |
686 | if (k->idx < 0 || k->idx > 5) | |
687 | return -EINVAL; | |
688 | } | |
689 | } | |
690 | ||
691 | return 0; | |
692 | } | |
693 | ||
694 | static struct cfg80211_cached_keys * | |
695 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
696 | struct nlattr *keys, bool *no_ht) | |
697 | { | |
698 | struct key_parse parse; | |
699 | struct nlattr *key; | |
700 | struct cfg80211_cached_keys *result; | |
701 | int rem, err, def = 0; | |
702 | ||
703 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
704 | if (!result) | |
705 | return ERR_PTR(-ENOMEM); | |
706 | ||
707 | result->def = -1; | |
708 | result->defmgmt = -1; | |
709 | ||
710 | nla_for_each_nested(key, keys, rem) { | |
711 | memset(&parse, 0, sizeof(parse)); | |
712 | parse.idx = -1; | |
713 | ||
714 | err = nl80211_parse_key_new(key, &parse); | |
715 | if (err) | |
716 | goto error; | |
717 | err = -EINVAL; | |
718 | if (!parse.p.key) | |
719 | goto error; | |
720 | if (parse.idx < 0 || parse.idx > 4) | |
721 | goto error; | |
722 | if (parse.def) { | |
723 | if (def) | |
724 | goto error; | |
725 | def = 1; | |
726 | result->def = parse.idx; | |
727 | if (!parse.def_uni || !parse.def_multi) | |
728 | goto error; | |
729 | } else if (parse.defmgmt) | |
730 | goto error; | |
731 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
732 | parse.idx, false, NULL); | |
733 | if (err) | |
734 | goto error; | |
735 | result->params[parse.idx].cipher = parse.p.cipher; | |
736 | result->params[parse.idx].key_len = parse.p.key_len; | |
737 | result->params[parse.idx].key = result->data[parse.idx]; | |
738 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
739 | ||
740 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
741 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
742 | if (no_ht) | |
743 | *no_ht = true; | |
744 | } | |
745 | } | |
746 | ||
747 | return result; | |
748 | error: | |
749 | kfree(result); | |
750 | return ERR_PTR(err); | |
751 | } | |
752 | ||
753 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
754 | { | |
755 | ASSERT_WDEV_LOCK(wdev); | |
756 | ||
757 | switch (wdev->iftype) { | |
758 | case NL80211_IFTYPE_AP: | |
759 | case NL80211_IFTYPE_AP_VLAN: | |
760 | case NL80211_IFTYPE_P2P_GO: | |
761 | case NL80211_IFTYPE_MESH_POINT: | |
762 | break; | |
763 | case NL80211_IFTYPE_ADHOC: | |
764 | if (!wdev->current_bss) | |
765 | return -ENOLINK; | |
766 | break; | |
767 | case NL80211_IFTYPE_STATION: | |
768 | case NL80211_IFTYPE_P2P_CLIENT: | |
769 | if (wdev->sme_state != CFG80211_SME_CONNECTED) | |
770 | return -ENOLINK; | |
771 | break; | |
772 | default: | |
773 | return -EINVAL; | |
774 | } | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
779 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) | |
780 | { | |
781 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
782 | int i; | |
783 | ||
784 | if (!nl_modes) | |
785 | goto nla_put_failure; | |
786 | ||
787 | i = 0; | |
788 | while (ifmodes) { | |
789 | if ((ifmodes & 1) && nla_put_flag(msg, i)) | |
790 | goto nla_put_failure; | |
791 | ifmodes >>= 1; | |
792 | i++; | |
793 | } | |
794 | ||
795 | nla_nest_end(msg, nl_modes); | |
796 | return 0; | |
797 | ||
798 | nla_put_failure: | |
799 | return -ENOBUFS; | |
800 | } | |
801 | ||
802 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
803 | struct sk_buff *msg) | |
804 | { | |
805 | struct nlattr *nl_combis; | |
806 | int i, j; | |
807 | ||
808 | nl_combis = nla_nest_start(msg, | |
809 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
810 | if (!nl_combis) | |
811 | goto nla_put_failure; | |
812 | ||
813 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
814 | const struct ieee80211_iface_combination *c; | |
815 | struct nlattr *nl_combi, *nl_limits; | |
816 | ||
817 | c = &wiphy->iface_combinations[i]; | |
818 | ||
819 | nl_combi = nla_nest_start(msg, i + 1); | |
820 | if (!nl_combi) | |
821 | goto nla_put_failure; | |
822 | ||
823 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
824 | if (!nl_limits) | |
825 | goto nla_put_failure; | |
826 | ||
827 | for (j = 0; j < c->n_limits; j++) { | |
828 | struct nlattr *nl_limit; | |
829 | ||
830 | nl_limit = nla_nest_start(msg, j + 1); | |
831 | if (!nl_limit) | |
832 | goto nla_put_failure; | |
833 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, | |
834 | c->limits[j].max)) | |
835 | goto nla_put_failure; | |
836 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, | |
837 | c->limits[j].types)) | |
838 | goto nla_put_failure; | |
839 | nla_nest_end(msg, nl_limit); | |
840 | } | |
841 | ||
842 | nla_nest_end(msg, nl_limits); | |
843 | ||
844 | if (c->beacon_int_infra_match && | |
845 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
846 | goto nla_put_failure; | |
847 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
848 | c->num_different_channels) || | |
849 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
850 | c->max_interfaces)) | |
851 | goto nla_put_failure; | |
852 | ||
853 | nla_nest_end(msg, nl_combi); | |
854 | } | |
855 | ||
856 | nla_nest_end(msg, nl_combis); | |
857 | ||
858 | return 0; | |
859 | nla_put_failure: | |
860 | return -ENOBUFS; | |
861 | } | |
862 | ||
863 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags, | |
864 | struct cfg80211_registered_device *dev) | |
865 | { | |
866 | void *hdr; | |
867 | struct nlattr *nl_bands, *nl_band; | |
868 | struct nlattr *nl_freqs, *nl_freq; | |
869 | struct nlattr *nl_rates, *nl_rate; | |
870 | struct nlattr *nl_cmds; | |
871 | enum ieee80211_band band; | |
872 | struct ieee80211_channel *chan; | |
873 | struct ieee80211_rate *rate; | |
874 | int i; | |
875 | const struct ieee80211_txrx_stypes *mgmt_stypes = | |
876 | dev->wiphy.mgmt_stypes; | |
877 | ||
878 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
879 | if (!hdr) | |
880 | return -1; | |
881 | ||
882 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) || | |
883 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) || | |
884 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
885 | cfg80211_rdev_list_generation) || | |
886 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
887 | dev->wiphy.retry_short) || | |
888 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
889 | dev->wiphy.retry_long) || | |
890 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
891 | dev->wiphy.frag_threshold) || | |
892 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
893 | dev->wiphy.rts_threshold) || | |
894 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, | |
895 | dev->wiphy.coverage_class) || | |
896 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, | |
897 | dev->wiphy.max_scan_ssids) || | |
898 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, | |
899 | dev->wiphy.max_sched_scan_ssids) || | |
900 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, | |
901 | dev->wiphy.max_scan_ie_len) || | |
902 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, | |
903 | dev->wiphy.max_sched_scan_ie_len) || | |
904 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, | |
905 | dev->wiphy.max_match_sets)) | |
906 | goto nla_put_failure; | |
907 | ||
908 | if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && | |
909 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) | |
910 | goto nla_put_failure; | |
911 | if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && | |
912 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) | |
913 | goto nla_put_failure; | |
914 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
915 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) | |
916 | goto nla_put_failure; | |
917 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && | |
918 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) | |
919 | goto nla_put_failure; | |
920 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && | |
921 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) | |
922 | goto nla_put_failure; | |
923 | if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && | |
924 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) | |
925 | goto nla_put_failure; | |
926 | ||
927 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
928 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
929 | dev->wiphy.cipher_suites)) | |
930 | goto nla_put_failure; | |
931 | ||
932 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, | |
933 | dev->wiphy.max_num_pmkids)) | |
934 | goto nla_put_failure; | |
935 | ||
936 | if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
937 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) | |
938 | goto nla_put_failure; | |
939 | ||
940 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, | |
941 | dev->wiphy.available_antennas_tx) || | |
942 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, | |
943 | dev->wiphy.available_antennas_rx)) | |
944 | goto nla_put_failure; | |
945 | ||
946 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && | |
947 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, | |
948 | dev->wiphy.probe_resp_offload)) | |
949 | goto nla_put_failure; | |
950 | ||
951 | if ((dev->wiphy.available_antennas_tx || | |
952 | dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) { | |
953 | u32 tx_ant = 0, rx_ant = 0; | |
954 | int res; | |
955 | res = rdev_get_antenna(dev, &tx_ant, &rx_ant); | |
956 | if (!res) { | |
957 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, | |
958 | tx_ant) || | |
959 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, | |
960 | rx_ant)) | |
961 | goto nla_put_failure; | |
962 | } | |
963 | } | |
964 | ||
965 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, | |
966 | dev->wiphy.interface_modes)) | |
967 | goto nla_put_failure; | |
968 | ||
969 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); | |
970 | if (!nl_bands) | |
971 | goto nla_put_failure; | |
972 | ||
973 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
974 | if (!dev->wiphy.bands[band]) | |
975 | continue; | |
976 | ||
977 | nl_band = nla_nest_start(msg, band); | |
978 | if (!nl_band) | |
979 | goto nla_put_failure; | |
980 | ||
981 | /* add HT info */ | |
982 | if (dev->wiphy.bands[band]->ht_cap.ht_supported && | |
983 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
984 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
985 | &dev->wiphy.bands[band]->ht_cap.mcs) || | |
986 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
987 | dev->wiphy.bands[band]->ht_cap.cap) || | |
988 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
989 | dev->wiphy.bands[band]->ht_cap.ampdu_factor) || | |
990 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
991 | dev->wiphy.bands[band]->ht_cap.ampdu_density))) | |
992 | goto nla_put_failure; | |
993 | ||
994 | /* add VHT info */ | |
995 | if (dev->wiphy.bands[band]->vht_cap.vht_supported && | |
996 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
997 | sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs), | |
998 | &dev->wiphy.bands[band]->vht_cap.vht_mcs) || | |
999 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
1000 | dev->wiphy.bands[band]->vht_cap.cap))) | |
1001 | goto nla_put_failure; | |
1002 | ||
1003 | /* add frequencies */ | |
1004 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
1005 | if (!nl_freqs) | |
1006 | goto nla_put_failure; | |
1007 | ||
1008 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
1009 | nl_freq = nla_nest_start(msg, i); | |
1010 | if (!nl_freq) | |
1011 | goto nla_put_failure; | |
1012 | ||
1013 | chan = &dev->wiphy.bands[band]->channels[i]; | |
1014 | ||
1015 | if (nl80211_msg_put_channel(msg, chan)) | |
1016 | goto nla_put_failure; | |
1017 | ||
1018 | nla_nest_end(msg, nl_freq); | |
1019 | } | |
1020 | ||
1021 | nla_nest_end(msg, nl_freqs); | |
1022 | ||
1023 | /* add bitrates */ | |
1024 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1025 | if (!nl_rates) | |
1026 | goto nla_put_failure; | |
1027 | ||
1028 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
1029 | nl_rate = nla_nest_start(msg, i); | |
1030 | if (!nl_rate) | |
1031 | goto nla_put_failure; | |
1032 | ||
1033 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
1034 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, | |
1035 | rate->bitrate)) | |
1036 | goto nla_put_failure; | |
1037 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1038 | nla_put_flag(msg, | |
1039 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1040 | goto nla_put_failure; | |
1041 | ||
1042 | nla_nest_end(msg, nl_rate); | |
1043 | } | |
1044 | ||
1045 | nla_nest_end(msg, nl_rates); | |
1046 | ||
1047 | nla_nest_end(msg, nl_band); | |
1048 | } | |
1049 | nla_nest_end(msg, nl_bands); | |
1050 | ||
1051 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); | |
1052 | if (!nl_cmds) | |
1053 | goto nla_put_failure; | |
1054 | ||
1055 | i = 0; | |
1056 | #define CMD(op, n) \ | |
1057 | do { \ | |
1058 | if (dev->ops->op) { \ | |
1059 | i++; \ | |
1060 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ | |
1061 | goto nla_put_failure; \ | |
1062 | } \ | |
1063 | } while (0) | |
1064 | ||
1065 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1066 | CMD(change_virtual_intf, SET_INTERFACE); | |
1067 | CMD(add_key, NEW_KEY); | |
1068 | CMD(start_ap, START_AP); | |
1069 | CMD(add_station, NEW_STATION); | |
1070 | CMD(add_mpath, NEW_MPATH); | |
1071 | CMD(update_mesh_config, SET_MESH_CONFIG); | |
1072 | CMD(change_bss, SET_BSS); | |
1073 | CMD(auth, AUTHENTICATE); | |
1074 | CMD(assoc, ASSOCIATE); | |
1075 | CMD(deauth, DEAUTHENTICATE); | |
1076 | CMD(disassoc, DISASSOCIATE); | |
1077 | CMD(join_ibss, JOIN_IBSS); | |
1078 | CMD(join_mesh, JOIN_MESH); | |
1079 | CMD(set_pmksa, SET_PMKSA); | |
1080 | CMD(del_pmksa, DEL_PMKSA); | |
1081 | CMD(flush_pmksa, FLUSH_PMKSA); | |
1082 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) | |
1083 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); | |
1084 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); | |
1085 | CMD(mgmt_tx, FRAME); | |
1086 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); | |
1087 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { | |
1088 | i++; | |
1089 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) | |
1090 | goto nla_put_failure; | |
1091 | } | |
1092 | if (dev->ops->set_monitor_channel || dev->ops->start_ap || | |
1093 | dev->ops->join_mesh) { | |
1094 | i++; | |
1095 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1096 | goto nla_put_failure; | |
1097 | } | |
1098 | CMD(set_wds_peer, SET_WDS_PEER); | |
1099 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { | |
1100 | CMD(tdls_mgmt, TDLS_MGMT); | |
1101 | CMD(tdls_oper, TDLS_OPER); | |
1102 | } | |
1103 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) | |
1104 | CMD(sched_scan_start, START_SCHED_SCAN); | |
1105 | CMD(probe_client, PROBE_CLIENT); | |
1106 | CMD(set_noack_map, SET_NOACK_MAP); | |
1107 | if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { | |
1108 | i++; | |
1109 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) | |
1110 | goto nla_put_failure; | |
1111 | } | |
1112 | CMD(start_p2p_device, START_P2P_DEVICE); | |
1113 | ||
1114 | #ifdef CONFIG_NL80211_TESTMODE | |
1115 | CMD(testmode_cmd, TESTMODE); | |
1116 | #endif | |
1117 | ||
1118 | #undef CMD | |
1119 | ||
1120 | if (dev->ops->connect || dev->ops->auth) { | |
1121 | i++; | |
1122 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) | |
1123 | goto nla_put_failure; | |
1124 | } | |
1125 | ||
1126 | if (dev->ops->disconnect || dev->ops->deauth) { | |
1127 | i++; | |
1128 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) | |
1129 | goto nla_put_failure; | |
1130 | } | |
1131 | ||
1132 | nla_nest_end(msg, nl_cmds); | |
1133 | ||
1134 | if (dev->ops->remain_on_channel && | |
1135 | (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && | |
1136 | nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1137 | dev->wiphy.max_remain_on_channel_duration)) | |
1138 | goto nla_put_failure; | |
1139 | ||
1140 | if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && | |
1141 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) | |
1142 | goto nla_put_failure; | |
1143 | ||
1144 | if (mgmt_stypes) { | |
1145 | u16 stypes; | |
1146 | struct nlattr *nl_ftypes, *nl_ifs; | |
1147 | enum nl80211_iftype ift; | |
1148 | ||
1149 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
1150 | if (!nl_ifs) | |
1151 | goto nla_put_failure; | |
1152 | ||
1153 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1154 | nl_ftypes = nla_nest_start(msg, ift); | |
1155 | if (!nl_ftypes) | |
1156 | goto nla_put_failure; | |
1157 | i = 0; | |
1158 | stypes = mgmt_stypes[ift].tx; | |
1159 | while (stypes) { | |
1160 | if ((stypes & 1) && | |
1161 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1162 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1163 | goto nla_put_failure; | |
1164 | stypes >>= 1; | |
1165 | i++; | |
1166 | } | |
1167 | nla_nest_end(msg, nl_ftypes); | |
1168 | } | |
1169 | ||
1170 | nla_nest_end(msg, nl_ifs); | |
1171 | ||
1172 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); | |
1173 | if (!nl_ifs) | |
1174 | goto nla_put_failure; | |
1175 | ||
1176 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1177 | nl_ftypes = nla_nest_start(msg, ift); | |
1178 | if (!nl_ftypes) | |
1179 | goto nla_put_failure; | |
1180 | i = 0; | |
1181 | stypes = mgmt_stypes[ift].rx; | |
1182 | while (stypes) { | |
1183 | if ((stypes & 1) && | |
1184 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1185 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1186 | goto nla_put_failure; | |
1187 | stypes >>= 1; | |
1188 | i++; | |
1189 | } | |
1190 | nla_nest_end(msg, nl_ftypes); | |
1191 | } | |
1192 | nla_nest_end(msg, nl_ifs); | |
1193 | } | |
1194 | ||
1195 | #ifdef CONFIG_PM | |
1196 | if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { | |
1197 | struct nlattr *nl_wowlan; | |
1198 | ||
1199 | nl_wowlan = nla_nest_start(msg, | |
1200 | NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); | |
1201 | if (!nl_wowlan) | |
1202 | goto nla_put_failure; | |
1203 | ||
1204 | if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) && | |
1205 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
1206 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) && | |
1207 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
1208 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) && | |
1209 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
1210 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && | |
1211 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || | |
1212 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && | |
1213 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
1214 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && | |
1215 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
1216 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && | |
1217 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
1218 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) && | |
1219 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
1220 | goto nla_put_failure; | |
1221 | if (dev->wiphy.wowlan.n_patterns) { | |
1222 | struct nl80211_wowlan_pattern_support pat = { | |
1223 | .max_patterns = dev->wiphy.wowlan.n_patterns, | |
1224 | .min_pattern_len = | |
1225 | dev->wiphy.wowlan.pattern_min_len, | |
1226 | .max_pattern_len = | |
1227 | dev->wiphy.wowlan.pattern_max_len, | |
1228 | }; | |
1229 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
1230 | sizeof(pat), &pat)) | |
1231 | goto nla_put_failure; | |
1232 | } | |
1233 | ||
1234 | nla_nest_end(msg, nl_wowlan); | |
1235 | } | |
1236 | #endif | |
1237 | ||
1238 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, | |
1239 | dev->wiphy.software_iftypes)) | |
1240 | goto nla_put_failure; | |
1241 | ||
1242 | if (nl80211_put_iface_combinations(&dev->wiphy, msg)) | |
1243 | goto nla_put_failure; | |
1244 | ||
1245 | if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && | |
1246 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, | |
1247 | dev->wiphy.ap_sme_capa)) | |
1248 | goto nla_put_failure; | |
1249 | ||
1250 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, | |
1251 | dev->wiphy.features)) | |
1252 | goto nla_put_failure; | |
1253 | ||
1254 | if (dev->wiphy.ht_capa_mod_mask && | |
1255 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, | |
1256 | sizeof(*dev->wiphy.ht_capa_mod_mask), | |
1257 | dev->wiphy.ht_capa_mod_mask)) | |
1258 | goto nla_put_failure; | |
1259 | ||
1260 | return genlmsg_end(msg, hdr); | |
1261 | ||
1262 | nla_put_failure: | |
1263 | genlmsg_cancel(msg, hdr); | |
1264 | return -EMSGSIZE; | |
1265 | } | |
1266 | ||
1267 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
1268 | { | |
1269 | int idx = 0; | |
1270 | int start = cb->args[0]; | |
1271 | struct cfg80211_registered_device *dev; | |
1272 | ||
1273 | mutex_lock(&cfg80211_mutex); | |
1274 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { | |
1275 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) | |
1276 | continue; | |
1277 | if (++idx <= start) | |
1278 | continue; | |
1279 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid, | |
1280 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1281 | dev) < 0) { | |
1282 | idx--; | |
1283 | break; | |
1284 | } | |
1285 | } | |
1286 | mutex_unlock(&cfg80211_mutex); | |
1287 | ||
1288 | cb->args[0] = idx; | |
1289 | ||
1290 | return skb->len; | |
1291 | } | |
1292 | ||
1293 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1294 | { | |
1295 | struct sk_buff *msg; | |
1296 | struct cfg80211_registered_device *dev = info->user_ptr[0]; | |
1297 | ||
1298 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1299 | if (!msg) | |
1300 | return -ENOMEM; | |
1301 | ||
1302 | if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) { | |
1303 | nlmsg_free(msg); | |
1304 | return -ENOBUFS; | |
1305 | } | |
1306 | ||
1307 | return genlmsg_reply(msg, info); | |
1308 | } | |
1309 | ||
1310 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { | |
1311 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1312 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1313 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1314 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1315 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1316 | }; | |
1317 | ||
1318 | static int parse_txq_params(struct nlattr *tb[], | |
1319 | struct ieee80211_txq_params *txq_params) | |
1320 | { | |
1321 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
1322 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
1323 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1324 | return -EINVAL; | |
1325 | ||
1326 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); | |
1327 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
1328 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1329 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1330 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1331 | ||
1332 | if (txq_params->ac >= NL80211_NUM_ACS) | |
1333 | return -EINVAL; | |
1334 | ||
1335 | return 0; | |
1336 | } | |
1337 | ||
1338 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) | |
1339 | { | |
1340 | /* | |
1341 | * You can only set the channel explicitly for WDS interfaces, | |
1342 | * all others have their channel managed via their respective | |
1343 | * "establish a connection" command (connect, join, ...) | |
1344 | * | |
1345 | * For AP/GO and mesh mode, the channel can be set with the | |
1346 | * channel userspace API, but is only stored and passed to the | |
1347 | * low-level driver when the AP starts or the mesh is joined. | |
1348 | * This is for backward compatibility, userspace can also give | |
1349 | * the channel in the start-ap or join-mesh commands instead. | |
1350 | * | |
1351 | * Monitors are special as they are normally slaved to | |
1352 | * whatever else is going on, so they have their own special | |
1353 | * operation to set the monitor channel if possible. | |
1354 | */ | |
1355 | return !wdev || | |
1356 | wdev->iftype == NL80211_IFTYPE_AP || | |
1357 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
1358 | wdev->iftype == NL80211_IFTYPE_MONITOR || | |
1359 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
1360 | } | |
1361 | ||
1362 | static bool nl80211_valid_channel_type(struct genl_info *info, | |
1363 | enum nl80211_channel_type *channel_type) | |
1364 | { | |
1365 | enum nl80211_channel_type tmp; | |
1366 | ||
1367 | if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) | |
1368 | return false; | |
1369 | ||
1370 | tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1371 | if (tmp != NL80211_CHAN_NO_HT && | |
1372 | tmp != NL80211_CHAN_HT20 && | |
1373 | tmp != NL80211_CHAN_HT40PLUS && | |
1374 | tmp != NL80211_CHAN_HT40MINUS) | |
1375 | return false; | |
1376 | ||
1377 | if (channel_type) | |
1378 | *channel_type = tmp; | |
1379 | ||
1380 | return true; | |
1381 | } | |
1382 | ||
1383 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
1384 | struct wireless_dev *wdev, | |
1385 | struct genl_info *info) | |
1386 | { | |
1387 | struct ieee80211_channel *channel; | |
1388 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
1389 | u32 freq; | |
1390 | int result; | |
1391 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; | |
1392 | ||
1393 | if (wdev) | |
1394 | iftype = wdev->iftype; | |
1395 | ||
1396 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1397 | return -EINVAL; | |
1398 | ||
1399 | if (!nl80211_can_set_dev_channel(wdev)) | |
1400 | return -EOPNOTSUPP; | |
1401 | ||
1402 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
1403 | !nl80211_valid_channel_type(info, &channel_type)) | |
1404 | return -EINVAL; | |
1405 | ||
1406 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1407 | ||
1408 | mutex_lock(&rdev->devlist_mtx); | |
1409 | switch (iftype) { | |
1410 | case NL80211_IFTYPE_AP: | |
1411 | case NL80211_IFTYPE_P2P_GO: | |
1412 | if (wdev->beacon_interval) { | |
1413 | result = -EBUSY; | |
1414 | break; | |
1415 | } | |
1416 | channel = rdev_freq_to_chan(rdev, freq, channel_type); | |
1417 | if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy, | |
1418 | channel, | |
1419 | channel_type)) { | |
1420 | result = -EINVAL; | |
1421 | break; | |
1422 | } | |
1423 | wdev->preset_chan = channel; | |
1424 | wdev->preset_chantype = channel_type; | |
1425 | result = 0; | |
1426 | break; | |
1427 | case NL80211_IFTYPE_MESH_POINT: | |
1428 | result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type); | |
1429 | break; | |
1430 | case NL80211_IFTYPE_MONITOR: | |
1431 | result = cfg80211_set_monitor_channel(rdev, freq, channel_type); | |
1432 | break; | |
1433 | default: | |
1434 | result = -EINVAL; | |
1435 | } | |
1436 | mutex_unlock(&rdev->devlist_mtx); | |
1437 | ||
1438 | return result; | |
1439 | } | |
1440 | ||
1441 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
1442 | { | |
1443 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
1444 | struct net_device *netdev = info->user_ptr[1]; | |
1445 | ||
1446 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); | |
1447 | } | |
1448 | ||
1449 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) | |
1450 | { | |
1451 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
1452 | struct net_device *dev = info->user_ptr[1]; | |
1453 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1454 | const u8 *bssid; | |
1455 | ||
1456 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1457 | return -EINVAL; | |
1458 | ||
1459 | if (netif_running(dev)) | |
1460 | return -EBUSY; | |
1461 | ||
1462 | if (!rdev->ops->set_wds_peer) | |
1463 | return -EOPNOTSUPP; | |
1464 | ||
1465 | if (wdev->iftype != NL80211_IFTYPE_WDS) | |
1466 | return -EOPNOTSUPP; | |
1467 | ||
1468 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1469 | return rdev_set_wds_peer(rdev, dev, bssid); | |
1470 | } | |
1471 | ||
1472 | ||
1473 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1474 | { | |
1475 | struct cfg80211_registered_device *rdev; | |
1476 | struct net_device *netdev = NULL; | |
1477 | struct wireless_dev *wdev; | |
1478 | int result = 0, rem_txq_params = 0; | |
1479 | struct nlattr *nl_txq_params; | |
1480 | u32 changed; | |
1481 | u8 retry_short = 0, retry_long = 0; | |
1482 | u32 frag_threshold = 0, rts_threshold = 0; | |
1483 | u8 coverage_class = 0; | |
1484 | ||
1485 | /* | |
1486 | * Try to find the wiphy and netdev. Normally this | |
1487 | * function shouldn't need the netdev, but this is | |
1488 | * done for backward compatibility -- previously | |
1489 | * setting the channel was done per wiphy, but now | |
1490 | * it is per netdev. Previous userland like hostapd | |
1491 | * also passed a netdev to set_wiphy, so that it is | |
1492 | * possible to let that go to the right netdev! | |
1493 | */ | |
1494 | mutex_lock(&cfg80211_mutex); | |
1495 | ||
1496 | if (info->attrs[NL80211_ATTR_IFINDEX]) { | |
1497 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
1498 | ||
1499 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
1500 | if (netdev && netdev->ieee80211_ptr) { | |
1501 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
1502 | mutex_lock(&rdev->mtx); | |
1503 | } else | |
1504 | netdev = NULL; | |
1505 | } | |
1506 | ||
1507 | if (!netdev) { | |
1508 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), | |
1509 | info->attrs); | |
1510 | if (IS_ERR(rdev)) { | |
1511 | mutex_unlock(&cfg80211_mutex); | |
1512 | return PTR_ERR(rdev); | |
1513 | } | |
1514 | wdev = NULL; | |
1515 | netdev = NULL; | |
1516 | result = 0; | |
1517 | ||
1518 | mutex_lock(&rdev->mtx); | |
1519 | } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
1520 | wdev = netdev->ieee80211_ptr; | |
1521 | else | |
1522 | wdev = NULL; | |
1523 | ||
1524 | /* | |
1525 | * end workaround code, by now the rdev is available | |
1526 | * and locked, and wdev may or may not be NULL. | |
1527 | */ | |
1528 | ||
1529 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
1530 | result = cfg80211_dev_rename( | |
1531 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
1532 | ||
1533 | mutex_unlock(&cfg80211_mutex); | |
1534 | ||
1535 | if (result) | |
1536 | goto bad_res; | |
1537 | ||
1538 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
1539 | struct ieee80211_txq_params txq_params; | |
1540 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
1541 | ||
1542 | if (!rdev->ops->set_txq_params) { | |
1543 | result = -EOPNOTSUPP; | |
1544 | goto bad_res; | |
1545 | } | |
1546 | ||
1547 | if (!netdev) { | |
1548 | result = -EINVAL; | |
1549 | goto bad_res; | |
1550 | } | |
1551 | ||
1552 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
1553 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
1554 | result = -EINVAL; | |
1555 | goto bad_res; | |
1556 | } | |
1557 | ||
1558 | if (!netif_running(netdev)) { | |
1559 | result = -ENETDOWN; | |
1560 | goto bad_res; | |
1561 | } | |
1562 | ||
1563 | nla_for_each_nested(nl_txq_params, | |
1564 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
1565 | rem_txq_params) { | |
1566 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
1567 | nla_data(nl_txq_params), | |
1568 | nla_len(nl_txq_params), | |
1569 | txq_params_policy); | |
1570 | result = parse_txq_params(tb, &txq_params); | |
1571 | if (result) | |
1572 | goto bad_res; | |
1573 | ||
1574 | result = rdev_set_txq_params(rdev, netdev, | |
1575 | &txq_params); | |
1576 | if (result) | |
1577 | goto bad_res; | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
1582 | result = __nl80211_set_channel(rdev, wdev, info); | |
1583 | if (result) | |
1584 | goto bad_res; | |
1585 | } | |
1586 | ||
1587 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { | |
1588 | enum nl80211_tx_power_setting type; | |
1589 | int idx, mbm = 0; | |
1590 | ||
1591 | if (!rdev->ops->set_tx_power) { | |
1592 | result = -EOPNOTSUPP; | |
1593 | goto bad_res; | |
1594 | } | |
1595 | ||
1596 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1597 | type = nla_get_u32(info->attrs[idx]); | |
1598 | ||
1599 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1600 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1601 | result = -EINVAL; | |
1602 | goto bad_res; | |
1603 | } | |
1604 | ||
1605 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1606 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1607 | mbm = nla_get_u32(info->attrs[idx]); | |
1608 | } | |
1609 | ||
1610 | result = rdev_set_tx_power(rdev, type, mbm); | |
1611 | if (result) | |
1612 | goto bad_res; | |
1613 | } | |
1614 | ||
1615 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && | |
1616 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1617 | u32 tx_ant, rx_ant; | |
1618 | if ((!rdev->wiphy.available_antennas_tx && | |
1619 | !rdev->wiphy.available_antennas_rx) || | |
1620 | !rdev->ops->set_antenna) { | |
1621 | result = -EOPNOTSUPP; | |
1622 | goto bad_res; | |
1623 | } | |
1624 | ||
1625 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1626 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1627 | ||
1628 | /* reject antenna configurations which don't match the | |
1629 | * available antenna masks, except for the "all" mask */ | |
1630 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
1631 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { | |
1632 | result = -EINVAL; | |
1633 | goto bad_res; | |
1634 | } | |
1635 | ||
1636 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; | |
1637 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
1638 | ||
1639 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); | |
1640 | if (result) | |
1641 | goto bad_res; | |
1642 | } | |
1643 | ||
1644 | changed = 0; | |
1645 | ||
1646 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1647 | retry_short = nla_get_u8( | |
1648 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1649 | if (retry_short == 0) { | |
1650 | result = -EINVAL; | |
1651 | goto bad_res; | |
1652 | } | |
1653 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1654 | } | |
1655 | ||
1656 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1657 | retry_long = nla_get_u8( | |
1658 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1659 | if (retry_long == 0) { | |
1660 | result = -EINVAL; | |
1661 | goto bad_res; | |
1662 | } | |
1663 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1664 | } | |
1665 | ||
1666 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1667 | frag_threshold = nla_get_u32( | |
1668 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1669 | if (frag_threshold < 256) { | |
1670 | result = -EINVAL; | |
1671 | goto bad_res; | |
1672 | } | |
1673 | if (frag_threshold != (u32) -1) { | |
1674 | /* | |
1675 | * Fragments (apart from the last one) are required to | |
1676 | * have even length. Make the fragmentation code | |
1677 | * simpler by stripping LSB should someone try to use | |
1678 | * odd threshold value. | |
1679 | */ | |
1680 | frag_threshold &= ~0x1; | |
1681 | } | |
1682 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1683 | } | |
1684 | ||
1685 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1686 | rts_threshold = nla_get_u32( | |
1687 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1688 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1689 | } | |
1690 | ||
1691 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { | |
1692 | coverage_class = nla_get_u8( | |
1693 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1694 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1695 | } | |
1696 | ||
1697 | if (changed) { | |
1698 | u8 old_retry_short, old_retry_long; | |
1699 | u32 old_frag_threshold, old_rts_threshold; | |
1700 | u8 old_coverage_class; | |
1701 | ||
1702 | if (!rdev->ops->set_wiphy_params) { | |
1703 | result = -EOPNOTSUPP; | |
1704 | goto bad_res; | |
1705 | } | |
1706 | ||
1707 | old_retry_short = rdev->wiphy.retry_short; | |
1708 | old_retry_long = rdev->wiphy.retry_long; | |
1709 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1710 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
1711 | old_coverage_class = rdev->wiphy.coverage_class; | |
1712 | ||
1713 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1714 | rdev->wiphy.retry_short = retry_short; | |
1715 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1716 | rdev->wiphy.retry_long = retry_long; | |
1717 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1718 | rdev->wiphy.frag_threshold = frag_threshold; | |
1719 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1720 | rdev->wiphy.rts_threshold = rts_threshold; | |
1721 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) | |
1722 | rdev->wiphy.coverage_class = coverage_class; | |
1723 | ||
1724 | result = rdev_set_wiphy_params(rdev, changed); | |
1725 | if (result) { | |
1726 | rdev->wiphy.retry_short = old_retry_short; | |
1727 | rdev->wiphy.retry_long = old_retry_long; | |
1728 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1729 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
1730 | rdev->wiphy.coverage_class = old_coverage_class; | |
1731 | } | |
1732 | } | |
1733 | ||
1734 | bad_res: | |
1735 | mutex_unlock(&rdev->mtx); | |
1736 | if (netdev) | |
1737 | dev_put(netdev); | |
1738 | return result; | |
1739 | } | |
1740 | ||
1741 | static inline u64 wdev_id(struct wireless_dev *wdev) | |
1742 | { | |
1743 | return (u64)wdev->identifier | | |
1744 | ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32); | |
1745 | } | |
1746 | ||
1747 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, | |
1748 | struct cfg80211_registered_device *rdev, | |
1749 | struct wireless_dev *wdev) | |
1750 | { | |
1751 | struct net_device *dev = wdev->netdev; | |
1752 | void *hdr; | |
1753 | ||
1754 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1755 | if (!hdr) | |
1756 | return -1; | |
1757 | ||
1758 | if (dev && | |
1759 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
1760 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) | |
1761 | goto nla_put_failure; | |
1762 | ||
1763 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
1764 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
1765 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || | |
1766 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || | |
1767 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
1768 | rdev->devlist_generation ^ | |
1769 | (cfg80211_rdev_list_generation << 2))) | |
1770 | goto nla_put_failure; | |
1771 | ||
1772 | if (rdev->ops->get_channel) { | |
1773 | struct ieee80211_channel *chan; | |
1774 | enum nl80211_channel_type channel_type; | |
1775 | ||
1776 | chan = rdev_get_channel(rdev, wdev, &channel_type); | |
1777 | if (chan && | |
1778 | (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, | |
1779 | chan->center_freq) || | |
1780 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
1781 | channel_type))) | |
1782 | goto nla_put_failure; | |
1783 | } | |
1784 | ||
1785 | return genlmsg_end(msg, hdr); | |
1786 | ||
1787 | nla_put_failure: | |
1788 | genlmsg_cancel(msg, hdr); | |
1789 | return -EMSGSIZE; | |
1790 | } | |
1791 | ||
1792 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1793 | { | |
1794 | int wp_idx = 0; | |
1795 | int if_idx = 0; | |
1796 | int wp_start = cb->args[0]; | |
1797 | int if_start = cb->args[1]; | |
1798 | struct cfg80211_registered_device *rdev; | |
1799 | struct wireless_dev *wdev; | |
1800 | ||
1801 | mutex_lock(&cfg80211_mutex); | |
1802 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
1803 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
1804 | continue; | |
1805 | if (wp_idx < wp_start) { | |
1806 | wp_idx++; | |
1807 | continue; | |
1808 | } | |
1809 | if_idx = 0; | |
1810 | ||
1811 | mutex_lock(&rdev->devlist_mtx); | |
1812 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
1813 | if (if_idx < if_start) { | |
1814 | if_idx++; | |
1815 | continue; | |
1816 | } | |
1817 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, | |
1818 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1819 | rdev, wdev) < 0) { | |
1820 | mutex_unlock(&rdev->devlist_mtx); | |
1821 | goto out; | |
1822 | } | |
1823 | if_idx++; | |
1824 | } | |
1825 | mutex_unlock(&rdev->devlist_mtx); | |
1826 | ||
1827 | wp_idx++; | |
1828 | } | |
1829 | out: | |
1830 | mutex_unlock(&cfg80211_mutex); | |
1831 | ||
1832 | cb->args[0] = wp_idx; | |
1833 | cb->args[1] = if_idx; | |
1834 | ||
1835 | return skb->len; | |
1836 | } | |
1837 | ||
1838 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1839 | { | |
1840 | struct sk_buff *msg; | |
1841 | struct cfg80211_registered_device *dev = info->user_ptr[0]; | |
1842 | struct wireless_dev *wdev = info->user_ptr[1]; | |
1843 | ||
1844 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1845 | if (!msg) | |
1846 | return -ENOMEM; | |
1847 | ||
1848 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, | |
1849 | dev, wdev) < 0) { | |
1850 | nlmsg_free(msg); | |
1851 | return -ENOBUFS; | |
1852 | } | |
1853 | ||
1854 | return genlmsg_reply(msg, info); | |
1855 | } | |
1856 | ||
1857 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { | |
1858 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1859 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1860 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1861 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1862 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1863 | }; | |
1864 | ||
1865 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1866 | { | |
1867 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1868 | int flag; | |
1869 | ||
1870 | *mntrflags = 0; | |
1871 | ||
1872 | if (!nla) | |
1873 | return -EINVAL; | |
1874 | ||
1875 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1876 | nla, mntr_flags_policy)) | |
1877 | return -EINVAL; | |
1878 | ||
1879 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1880 | if (flags[flag]) | |
1881 | *mntrflags |= (1<<flag); | |
1882 | ||
1883 | return 0; | |
1884 | } | |
1885 | ||
1886 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, | |
1887 | struct net_device *netdev, u8 use_4addr, | |
1888 | enum nl80211_iftype iftype) | |
1889 | { | |
1890 | if (!use_4addr) { | |
1891 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) | |
1892 | return -EBUSY; | |
1893 | return 0; | |
1894 | } | |
1895 | ||
1896 | switch (iftype) { | |
1897 | case NL80211_IFTYPE_AP_VLAN: | |
1898 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1899 | return 0; | |
1900 | break; | |
1901 | case NL80211_IFTYPE_STATION: | |
1902 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1903 | return 0; | |
1904 | break; | |
1905 | default: | |
1906 | break; | |
1907 | } | |
1908 | ||
1909 | return -EOPNOTSUPP; | |
1910 | } | |
1911 | ||
1912 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) | |
1913 | { | |
1914 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
1915 | struct vif_params params; | |
1916 | int err; | |
1917 | enum nl80211_iftype otype, ntype; | |
1918 | struct net_device *dev = info->user_ptr[1]; | |
1919 | u32 _flags, *flags = NULL; | |
1920 | bool change = false; | |
1921 | ||
1922 | memset(¶ms, 0, sizeof(params)); | |
1923 | ||
1924 | otype = ntype = dev->ieee80211_ptr->iftype; | |
1925 | ||
1926 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1927 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1928 | if (otype != ntype) | |
1929 | change = true; | |
1930 | if (ntype > NL80211_IFTYPE_MAX) | |
1931 | return -EINVAL; | |
1932 | } | |
1933 | ||
1934 | if (info->attrs[NL80211_ATTR_MESH_ID]) { | |
1935 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1936 | ||
1937 | if (ntype != NL80211_IFTYPE_MESH_POINT) | |
1938 | return -EINVAL; | |
1939 | if (netif_running(dev)) | |
1940 | return -EBUSY; | |
1941 | ||
1942 | wdev_lock(wdev); | |
1943 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1944 | IEEE80211_MAX_MESH_ID_LEN); | |
1945 | wdev->mesh_id_up_len = | |
1946 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1947 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1948 | wdev->mesh_id_up_len); | |
1949 | wdev_unlock(wdev); | |
1950 | } | |
1951 | ||
1952 | if (info->attrs[NL80211_ATTR_4ADDR]) { | |
1953 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1954 | change = true; | |
1955 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); | |
1956 | if (err) | |
1957 | return err; | |
1958 | } else { | |
1959 | params.use_4addr = -1; | |
1960 | } | |
1961 | ||
1962 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { | |
1963 | if (ntype != NL80211_IFTYPE_MONITOR) | |
1964 | return -EINVAL; | |
1965 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
1966 | &_flags); | |
1967 | if (err) | |
1968 | return err; | |
1969 | ||
1970 | flags = &_flags; | |
1971 | change = true; | |
1972 | } | |
1973 | ||
1974 | if (change) | |
1975 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); | |
1976 | else | |
1977 | err = 0; | |
1978 | ||
1979 | if (!err && params.use_4addr != -1) | |
1980 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1981 | ||
1982 | return err; | |
1983 | } | |
1984 | ||
1985 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1986 | { | |
1987 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
1988 | struct vif_params params; | |
1989 | struct wireless_dev *wdev; | |
1990 | struct sk_buff *msg; | |
1991 | int err; | |
1992 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
1993 | u32 flags; | |
1994 | ||
1995 | memset(¶ms, 0, sizeof(params)); | |
1996 | ||
1997 | if (!info->attrs[NL80211_ATTR_IFNAME]) | |
1998 | return -EINVAL; | |
1999 | ||
2000 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2001 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2002 | if (type > NL80211_IFTYPE_MAX) | |
2003 | return -EINVAL; | |
2004 | } | |
2005 | ||
2006 | if (!rdev->ops->add_virtual_intf || | |
2007 | !(rdev->wiphy.interface_modes & (1 << type))) | |
2008 | return -EOPNOTSUPP; | |
2009 | ||
2010 | if (info->attrs[NL80211_ATTR_4ADDR]) { | |
2011 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
2012 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); | |
2013 | if (err) | |
2014 | return err; | |
2015 | } | |
2016 | ||
2017 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2018 | if (!msg) | |
2019 | return -ENOMEM; | |
2020 | ||
2021 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? | |
2022 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2023 | &flags); | |
2024 | wdev = rdev_add_virtual_intf(rdev, | |
2025 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), | |
2026 | type, err ? NULL : &flags, ¶ms); | |
2027 | if (IS_ERR(wdev)) { | |
2028 | nlmsg_free(msg); | |
2029 | return PTR_ERR(wdev); | |
2030 | } | |
2031 | ||
2032 | switch (type) { | |
2033 | case NL80211_IFTYPE_MESH_POINT: | |
2034 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2035 | break; | |
2036 | wdev_lock(wdev); | |
2037 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2038 | IEEE80211_MAX_MESH_ID_LEN); | |
2039 | wdev->mesh_id_up_len = | |
2040 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2041 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2042 | wdev->mesh_id_up_len); | |
2043 | wdev_unlock(wdev); | |
2044 | break; | |
2045 | case NL80211_IFTYPE_P2P_DEVICE: | |
2046 | /* | |
2047 | * P2P Device doesn't have a netdev, so doesn't go | |
2048 | * through the netdev notifier and must be added here | |
2049 | */ | |
2050 | mutex_init(&wdev->mtx); | |
2051 | INIT_LIST_HEAD(&wdev->event_list); | |
2052 | spin_lock_init(&wdev->event_lock); | |
2053 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2054 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2055 | ||
2056 | mutex_lock(&rdev->devlist_mtx); | |
2057 | wdev->identifier = ++rdev->wdev_id; | |
2058 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2059 | rdev->devlist_generation++; | |
2060 | mutex_unlock(&rdev->devlist_mtx); | |
2061 | break; | |
2062 | default: | |
2063 | break; | |
2064 | } | |
2065 | ||
2066 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, | |
2067 | rdev, wdev) < 0) { | |
2068 | nlmsg_free(msg); | |
2069 | return -ENOBUFS; | |
2070 | } | |
2071 | ||
2072 | return genlmsg_reply(msg, info); | |
2073 | } | |
2074 | ||
2075 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2076 | { | |
2077 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2078 | struct wireless_dev *wdev = info->user_ptr[1]; | |
2079 | ||
2080 | if (!rdev->ops->del_virtual_intf) | |
2081 | return -EOPNOTSUPP; | |
2082 | ||
2083 | /* | |
2084 | * If we remove a wireless device without a netdev then clear | |
2085 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2086 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2087 | * since the wdev has been freed, unlike with a netdev where | |
2088 | * we need the dev_put() for the netdev to really be freed. | |
2089 | */ | |
2090 | if (!wdev->netdev) | |
2091 | info->user_ptr[1] = NULL; | |
2092 | ||
2093 | return rdev_del_virtual_intf(rdev, wdev); | |
2094 | } | |
2095 | ||
2096 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) | |
2097 | { | |
2098 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2099 | struct net_device *dev = info->user_ptr[1]; | |
2100 | u16 noack_map; | |
2101 | ||
2102 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2103 | return -EINVAL; | |
2104 | ||
2105 | if (!rdev->ops->set_noack_map) | |
2106 | return -EOPNOTSUPP; | |
2107 | ||
2108 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2109 | ||
2110 | return rdev_set_noack_map(rdev, dev, noack_map); | |
2111 | } | |
2112 | ||
2113 | struct get_key_cookie { | |
2114 | struct sk_buff *msg; | |
2115 | int error; | |
2116 | int idx; | |
2117 | }; | |
2118 | ||
2119 | static void get_key_callback(void *c, struct key_params *params) | |
2120 | { | |
2121 | struct nlattr *key; | |
2122 | struct get_key_cookie *cookie = c; | |
2123 | ||
2124 | if ((params->key && | |
2125 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2126 | params->key_len, params->key)) || | |
2127 | (params->seq && | |
2128 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2129 | params->seq_len, params->seq)) || | |
2130 | (params->cipher && | |
2131 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2132 | params->cipher))) | |
2133 | goto nla_put_failure; | |
2134 | ||
2135 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); | |
2136 | if (!key) | |
2137 | goto nla_put_failure; | |
2138 | ||
2139 | if ((params->key && | |
2140 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2141 | params->key_len, params->key)) || | |
2142 | (params->seq && | |
2143 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2144 | params->seq_len, params->seq)) || | |
2145 | (params->cipher && | |
2146 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2147 | params->cipher))) | |
2148 | goto nla_put_failure; | |
2149 | ||
2150 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) | |
2151 | goto nla_put_failure; | |
2152 | ||
2153 | nla_nest_end(cookie->msg, key); | |
2154 | ||
2155 | return; | |
2156 | nla_put_failure: | |
2157 | cookie->error = 1; | |
2158 | } | |
2159 | ||
2160 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2161 | { | |
2162 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2163 | int err; | |
2164 | struct net_device *dev = info->user_ptr[1]; | |
2165 | u8 key_idx = 0; | |
2166 | const u8 *mac_addr = NULL; | |
2167 | bool pairwise; | |
2168 | struct get_key_cookie cookie = { | |
2169 | .error = 0, | |
2170 | }; | |
2171 | void *hdr; | |
2172 | struct sk_buff *msg; | |
2173 | ||
2174 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2175 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2176 | ||
2177 | if (key_idx > 5) | |
2178 | return -EINVAL; | |
2179 | ||
2180 | if (info->attrs[NL80211_ATTR_MAC]) | |
2181 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2182 | ||
2183 | pairwise = !!mac_addr; | |
2184 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2185 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2186 | if (kt >= NUM_NL80211_KEYTYPES) | |
2187 | return -EINVAL; | |
2188 | if (kt != NL80211_KEYTYPE_GROUP && | |
2189 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2190 | return -EINVAL; | |
2191 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2192 | } | |
2193 | ||
2194 | if (!rdev->ops->get_key) | |
2195 | return -EOPNOTSUPP; | |
2196 | ||
2197 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2198 | if (!msg) | |
2199 | return -ENOMEM; | |
2200 | ||
2201 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
2202 | NL80211_CMD_NEW_KEY); | |
2203 | if (IS_ERR(hdr)) | |
2204 | return PTR_ERR(hdr); | |
2205 | ||
2206 | cookie.msg = msg; | |
2207 | cookie.idx = key_idx; | |
2208 | ||
2209 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
2210 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2211 | goto nla_put_failure; | |
2212 | if (mac_addr && | |
2213 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2214 | goto nla_put_failure; | |
2215 | ||
2216 | if (pairwise && mac_addr && | |
2217 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2218 | return -ENOENT; | |
2219 | ||
2220 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, | |
2221 | get_key_callback); | |
2222 | ||
2223 | if (err) | |
2224 | goto free_msg; | |
2225 | ||
2226 | if (cookie.error) | |
2227 | goto nla_put_failure; | |
2228 | ||
2229 | genlmsg_end(msg, hdr); | |
2230 | return genlmsg_reply(msg, info); | |
2231 | ||
2232 | nla_put_failure: | |
2233 | err = -ENOBUFS; | |
2234 | free_msg: | |
2235 | nlmsg_free(msg); | |
2236 | return err; | |
2237 | } | |
2238 | ||
2239 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2240 | { | |
2241 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2242 | struct key_parse key; | |
2243 | int err; | |
2244 | struct net_device *dev = info->user_ptr[1]; | |
2245 | ||
2246 | err = nl80211_parse_key(info, &key); | |
2247 | if (err) | |
2248 | return err; | |
2249 | ||
2250 | if (key.idx < 0) | |
2251 | return -EINVAL; | |
2252 | ||
2253 | /* only support setting default key */ | |
2254 | if (!key.def && !key.defmgmt) | |
2255 | return -EINVAL; | |
2256 | ||
2257 | wdev_lock(dev->ieee80211_ptr); | |
2258 | ||
2259 | if (key.def) { | |
2260 | if (!rdev->ops->set_default_key) { | |
2261 | err = -EOPNOTSUPP; | |
2262 | goto out; | |
2263 | } | |
2264 | ||
2265 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2266 | if (err) | |
2267 | goto out; | |
2268 | ||
2269 | err = rdev_set_default_key(rdev, dev, key.idx, | |
2270 | key.def_uni, key.def_multi); | |
2271 | ||
2272 | if (err) | |
2273 | goto out; | |
2274 | ||
2275 | #ifdef CONFIG_CFG80211_WEXT | |
2276 | dev->ieee80211_ptr->wext.default_key = key.idx; | |
2277 | #endif | |
2278 | } else { | |
2279 | if (key.def_uni || !key.def_multi) { | |
2280 | err = -EINVAL; | |
2281 | goto out; | |
2282 | } | |
2283 | ||
2284 | if (!rdev->ops->set_default_mgmt_key) { | |
2285 | err = -EOPNOTSUPP; | |
2286 | goto out; | |
2287 | } | |
2288 | ||
2289 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2290 | if (err) | |
2291 | goto out; | |
2292 | ||
2293 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); | |
2294 | if (err) | |
2295 | goto out; | |
2296 | ||
2297 | #ifdef CONFIG_CFG80211_WEXT | |
2298 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
2299 | #endif | |
2300 | } | |
2301 | ||
2302 | out: | |
2303 | wdev_unlock(dev->ieee80211_ptr); | |
2304 | ||
2305 | return err; | |
2306 | } | |
2307 | ||
2308 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
2309 | { | |
2310 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2311 | int err; | |
2312 | struct net_device *dev = info->user_ptr[1]; | |
2313 | struct key_parse key; | |
2314 | const u8 *mac_addr = NULL; | |
2315 | ||
2316 | err = nl80211_parse_key(info, &key); | |
2317 | if (err) | |
2318 | return err; | |
2319 | ||
2320 | if (!key.p.key) | |
2321 | return -EINVAL; | |
2322 | ||
2323 | if (info->attrs[NL80211_ATTR_MAC]) | |
2324 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2325 | ||
2326 | if (key.type == -1) { | |
2327 | if (mac_addr) | |
2328 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2329 | else | |
2330 | key.type = NL80211_KEYTYPE_GROUP; | |
2331 | } | |
2332 | ||
2333 | /* for now */ | |
2334 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2335 | key.type != NL80211_KEYTYPE_GROUP) | |
2336 | return -EINVAL; | |
2337 | ||
2338 | if (!rdev->ops->add_key) | |
2339 | return -EOPNOTSUPP; | |
2340 | ||
2341 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, | |
2342 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2343 | mac_addr)) | |
2344 | return -EINVAL; | |
2345 | ||
2346 | wdev_lock(dev->ieee80211_ptr); | |
2347 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2348 | if (!err) | |
2349 | err = rdev_add_key(rdev, dev, key.idx, | |
2350 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2351 | mac_addr, &key.p); | |
2352 | wdev_unlock(dev->ieee80211_ptr); | |
2353 | ||
2354 | return err; | |
2355 | } | |
2356 | ||
2357 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
2358 | { | |
2359 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2360 | int err; | |
2361 | struct net_device *dev = info->user_ptr[1]; | |
2362 | u8 *mac_addr = NULL; | |
2363 | struct key_parse key; | |
2364 | ||
2365 | err = nl80211_parse_key(info, &key); | |
2366 | if (err) | |
2367 | return err; | |
2368 | ||
2369 | if (info->attrs[NL80211_ATTR_MAC]) | |
2370 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2371 | ||
2372 | if (key.type == -1) { | |
2373 | if (mac_addr) | |
2374 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2375 | else | |
2376 | key.type = NL80211_KEYTYPE_GROUP; | |
2377 | } | |
2378 | ||
2379 | /* for now */ | |
2380 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2381 | key.type != NL80211_KEYTYPE_GROUP) | |
2382 | return -EINVAL; | |
2383 | ||
2384 | if (!rdev->ops->del_key) | |
2385 | return -EOPNOTSUPP; | |
2386 | ||
2387 | wdev_lock(dev->ieee80211_ptr); | |
2388 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2389 | ||
2390 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
2391 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2392 | err = -ENOENT; | |
2393 | ||
2394 | if (!err) | |
2395 | err = rdev_del_key(rdev, dev, key.idx, | |
2396 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2397 | mac_addr); | |
2398 | ||
2399 | #ifdef CONFIG_CFG80211_WEXT | |
2400 | if (!err) { | |
2401 | if (key.idx == dev->ieee80211_ptr->wext.default_key) | |
2402 | dev->ieee80211_ptr->wext.default_key = -1; | |
2403 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) | |
2404 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; | |
2405 | } | |
2406 | #endif | |
2407 | wdev_unlock(dev->ieee80211_ptr); | |
2408 | ||
2409 | return err; | |
2410 | } | |
2411 | ||
2412 | static int nl80211_parse_beacon(struct genl_info *info, | |
2413 | struct cfg80211_beacon_data *bcn) | |
2414 | { | |
2415 | bool haveinfo = false; | |
2416 | ||
2417 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) || | |
2418 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) || | |
2419 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
2420 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
2421 | return -EINVAL; | |
2422 | ||
2423 | memset(bcn, 0, sizeof(*bcn)); | |
2424 | ||
2425 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
2426 | bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
2427 | bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
2428 | if (!bcn->head_len) | |
2429 | return -EINVAL; | |
2430 | haveinfo = true; | |
2431 | } | |
2432 | ||
2433 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
2434 | bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
2435 | bcn->tail_len = | |
2436 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
2437 | haveinfo = true; | |
2438 | } | |
2439 | ||
2440 | if (!haveinfo) | |
2441 | return -EINVAL; | |
2442 | ||
2443 | if (info->attrs[NL80211_ATTR_IE]) { | |
2444 | bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2445 | bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2446 | } | |
2447 | ||
2448 | if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) { | |
2449 | bcn->proberesp_ies = | |
2450 | nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); | |
2451 | bcn->proberesp_ies_len = | |
2452 | nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); | |
2453 | } | |
2454 | ||
2455 | if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) { | |
2456 | bcn->assocresp_ies = | |
2457 | nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); | |
2458 | bcn->assocresp_ies_len = | |
2459 | nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); | |
2460 | } | |
2461 | ||
2462 | if (info->attrs[NL80211_ATTR_PROBE_RESP]) { | |
2463 | bcn->probe_resp = | |
2464 | nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]); | |
2465 | bcn->probe_resp_len = | |
2466 | nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]); | |
2467 | } | |
2468 | ||
2469 | return 0; | |
2470 | } | |
2471 | ||
2472 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, | |
2473 | struct cfg80211_ap_settings *params) | |
2474 | { | |
2475 | struct wireless_dev *wdev; | |
2476 | bool ret = false; | |
2477 | ||
2478 | mutex_lock(&rdev->devlist_mtx); | |
2479 | ||
2480 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
2481 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
2482 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
2483 | continue; | |
2484 | ||
2485 | if (!wdev->preset_chan) | |
2486 | continue; | |
2487 | ||
2488 | params->channel = wdev->preset_chan; | |
2489 | params->channel_type = wdev->preset_chantype; | |
2490 | ret = true; | |
2491 | break; | |
2492 | } | |
2493 | ||
2494 | mutex_unlock(&rdev->devlist_mtx); | |
2495 | ||
2496 | return ret; | |
2497 | } | |
2498 | ||
2499 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, | |
2500 | enum nl80211_auth_type auth_type, | |
2501 | enum nl80211_commands cmd) | |
2502 | { | |
2503 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
2504 | return false; | |
2505 | ||
2506 | switch (cmd) { | |
2507 | case NL80211_CMD_AUTHENTICATE: | |
2508 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
2509 | auth_type == NL80211_AUTHTYPE_SAE) | |
2510 | return false; | |
2511 | return true; | |
2512 | case NL80211_CMD_CONNECT: | |
2513 | case NL80211_CMD_START_AP: | |
2514 | /* SAE not supported yet */ | |
2515 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
2516 | return false; | |
2517 | return true; | |
2518 | default: | |
2519 | return false; | |
2520 | } | |
2521 | } | |
2522 | ||
2523 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) | |
2524 | { | |
2525 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2526 | struct net_device *dev = info->user_ptr[1]; | |
2527 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2528 | struct cfg80211_ap_settings params; | |
2529 | int err; | |
2530 | ||
2531 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2532 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2533 | return -EOPNOTSUPP; | |
2534 | ||
2535 | if (!rdev->ops->start_ap) | |
2536 | return -EOPNOTSUPP; | |
2537 | ||
2538 | if (wdev->beacon_interval) | |
2539 | return -EALREADY; | |
2540 | ||
2541 | memset(¶ms, 0, sizeof(params)); | |
2542 | ||
2543 | /* these are required for START_AP */ | |
2544 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
2545 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
2546 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
2547 | return -EINVAL; | |
2548 | ||
2549 | err = nl80211_parse_beacon(info, ¶ms.beacon); | |
2550 | if (err) | |
2551 | return err; | |
2552 | ||
2553 | params.beacon_interval = | |
2554 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
2555 | params.dtim_period = | |
2556 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
2557 | ||
2558 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
2559 | if (err) | |
2560 | return err; | |
2561 | ||
2562 | /* | |
2563 | * In theory, some of these attributes should be required here | |
2564 | * but since they were not used when the command was originally | |
2565 | * added, keep them optional for old user space programs to let | |
2566 | * them continue to work with drivers that do not need the | |
2567 | * additional information -- drivers must check! | |
2568 | */ | |
2569 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2570 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2571 | params.ssid_len = | |
2572 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2573 | if (params.ssid_len == 0 || | |
2574 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
2575 | return -EINVAL; | |
2576 | } | |
2577 | ||
2578 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
2579 | params.hidden_ssid = nla_get_u32( | |
2580 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
2581 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
2582 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
2583 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
2584 | return -EINVAL; | |
2585 | } | |
2586 | ||
2587 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
2588 | ||
2589 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
2590 | params.auth_type = nla_get_u32( | |
2591 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
2592 | if (!nl80211_valid_auth_type(rdev, params.auth_type, | |
2593 | NL80211_CMD_START_AP)) | |
2594 | return -EINVAL; | |
2595 | } else | |
2596 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
2597 | ||
2598 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
2599 | NL80211_MAX_NR_CIPHER_SUITES); | |
2600 | if (err) | |
2601 | return err; | |
2602 | ||
2603 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { | |
2604 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
2605 | return -EOPNOTSUPP; | |
2606 | params.inactivity_timeout = nla_get_u16( | |
2607 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
2608 | } | |
2609 | ||
2610 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2611 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
2612 | ||
2613 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
2614 | !nl80211_valid_channel_type(info, &channel_type)) | |
2615 | return -EINVAL; | |
2616 | ||
2617 | params.channel = rdev_freq_to_chan(rdev, | |
2618 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
2619 | channel_type); | |
2620 | if (!params.channel) | |
2621 | return -EINVAL; | |
2622 | params.channel_type = channel_type; | |
2623 | } else if (wdev->preset_chan) { | |
2624 | params.channel = wdev->preset_chan; | |
2625 | params.channel_type = wdev->preset_chantype; | |
2626 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) | |
2627 | return -EINVAL; | |
2628 | ||
2629 | if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel, | |
2630 | params.channel_type)) | |
2631 | return -EINVAL; | |
2632 | ||
2633 | mutex_lock(&rdev->devlist_mtx); | |
2634 | err = cfg80211_can_use_chan(rdev, wdev, params.channel, | |
2635 | CHAN_MODE_SHARED); | |
2636 | mutex_unlock(&rdev->devlist_mtx); | |
2637 | ||
2638 | if (err) | |
2639 | return err; | |
2640 | ||
2641 | err = rdev_start_ap(rdev, dev, ¶ms); | |
2642 | if (!err) { | |
2643 | wdev->preset_chan = params.channel; | |
2644 | wdev->preset_chantype = params.channel_type; | |
2645 | wdev->beacon_interval = params.beacon_interval; | |
2646 | wdev->channel = params.channel; | |
2647 | } | |
2648 | return err; | |
2649 | } | |
2650 | ||
2651 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) | |
2652 | { | |
2653 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2654 | struct net_device *dev = info->user_ptr[1]; | |
2655 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2656 | struct cfg80211_beacon_data params; | |
2657 | int err; | |
2658 | ||
2659 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2660 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2661 | return -EOPNOTSUPP; | |
2662 | ||
2663 | if (!rdev->ops->change_beacon) | |
2664 | return -EOPNOTSUPP; | |
2665 | ||
2666 | if (!wdev->beacon_interval) | |
2667 | return -EINVAL; | |
2668 | ||
2669 | err = nl80211_parse_beacon(info, ¶ms); | |
2670 | if (err) | |
2671 | return err; | |
2672 | ||
2673 | return rdev_change_beacon(rdev, dev, ¶ms); | |
2674 | } | |
2675 | ||
2676 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
2677 | { | |
2678 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2679 | struct net_device *dev = info->user_ptr[1]; | |
2680 | ||
2681 | return cfg80211_stop_ap(rdev, dev); | |
2682 | } | |
2683 | ||
2684 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { | |
2685 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
2686 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
2687 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
2688 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, | |
2689 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, | |
2690 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, | |
2691 | }; | |
2692 | ||
2693 | static int parse_station_flags(struct genl_info *info, | |
2694 | enum nl80211_iftype iftype, | |
2695 | struct station_parameters *params) | |
2696 | { | |
2697 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
2698 | struct nlattr *nla; | |
2699 | int flag; | |
2700 | ||
2701 | /* | |
2702 | * Try parsing the new attribute first so userspace | |
2703 | * can specify both for older kernels. | |
2704 | */ | |
2705 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
2706 | if (nla) { | |
2707 | struct nl80211_sta_flag_update *sta_flags; | |
2708 | ||
2709 | sta_flags = nla_data(nla); | |
2710 | params->sta_flags_mask = sta_flags->mask; | |
2711 | params->sta_flags_set = sta_flags->set; | |
2712 | if ((params->sta_flags_mask | | |
2713 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
2714 | return -EINVAL; | |
2715 | return 0; | |
2716 | } | |
2717 | ||
2718 | /* if present, parse the old attribute */ | |
2719 | ||
2720 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; | |
2721 | if (!nla) | |
2722 | return 0; | |
2723 | ||
2724 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
2725 | nla, sta_flags_policy)) | |
2726 | return -EINVAL; | |
2727 | ||
2728 | /* | |
2729 | * Only allow certain flags for interface types so that | |
2730 | * other attributes are silently ignored. Remember that | |
2731 | * this is backward compatibility code with old userspace | |
2732 | * and shouldn't be hit in other cases anyway. | |
2733 | */ | |
2734 | switch (iftype) { | |
2735 | case NL80211_IFTYPE_AP: | |
2736 | case NL80211_IFTYPE_AP_VLAN: | |
2737 | case NL80211_IFTYPE_P2P_GO: | |
2738 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2739 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
2740 | BIT(NL80211_STA_FLAG_WME) | | |
2741 | BIT(NL80211_STA_FLAG_MFP); | |
2742 | break; | |
2743 | case NL80211_IFTYPE_P2P_CLIENT: | |
2744 | case NL80211_IFTYPE_STATION: | |
2745 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2746 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
2747 | break; | |
2748 | case NL80211_IFTYPE_MESH_POINT: | |
2749 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
2750 | BIT(NL80211_STA_FLAG_MFP) | | |
2751 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
2752 | default: | |
2753 | return -EINVAL; | |
2754 | } | |
2755 | ||
2756 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { | |
2757 | if (flags[flag]) { | |
2758 | params->sta_flags_set |= (1<<flag); | |
2759 | ||
2760 | /* no longer support new API additions in old API */ | |
2761 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
2762 | return -EINVAL; | |
2763 | } | |
2764 | } | |
2765 | ||
2766 | return 0; | |
2767 | } | |
2768 | ||
2769 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, | |
2770 | int attr) | |
2771 | { | |
2772 | struct nlattr *rate; | |
2773 | u32 bitrate; | |
2774 | u16 bitrate_compat; | |
2775 | ||
2776 | rate = nla_nest_start(msg, attr); | |
2777 | if (!rate) | |
2778 | goto nla_put_failure; | |
2779 | ||
2780 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
2781 | bitrate = cfg80211_calculate_bitrate(info); | |
2782 | /* report 16-bit bitrate only if we can */ | |
2783 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
2784 | if ((bitrate > 0 && | |
2785 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) || | |
2786 | (bitrate_compat > 0 && | |
2787 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) || | |
2788 | ((info->flags & RATE_INFO_FLAGS_MCS) && | |
2789 | nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) || | |
2790 | ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) && | |
2791 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) || | |
2792 | ((info->flags & RATE_INFO_FLAGS_SHORT_GI) && | |
2793 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))) | |
2794 | goto nla_put_failure; | |
2795 | ||
2796 | nla_nest_end(msg, rate); | |
2797 | return true; | |
2798 | ||
2799 | nla_put_failure: | |
2800 | return false; | |
2801 | } | |
2802 | ||
2803 | static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq, | |
2804 | int flags, | |
2805 | struct cfg80211_registered_device *rdev, | |
2806 | struct net_device *dev, | |
2807 | const u8 *mac_addr, struct station_info *sinfo) | |
2808 | { | |
2809 | void *hdr; | |
2810 | struct nlattr *sinfoattr, *bss_param; | |
2811 | ||
2812 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); | |
2813 | if (!hdr) | |
2814 | return -1; | |
2815 | ||
2816 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
2817 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
2818 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
2819 | goto nla_put_failure; | |
2820 | ||
2821 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); | |
2822 | if (!sinfoattr) | |
2823 | goto nla_put_failure; | |
2824 | if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) && | |
2825 | nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME, | |
2826 | sinfo->connected_time)) | |
2827 | goto nla_put_failure; | |
2828 | if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) && | |
2829 | nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
2830 | sinfo->inactive_time)) | |
2831 | goto nla_put_failure; | |
2832 | if ((sinfo->filled & STATION_INFO_RX_BYTES) && | |
2833 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, | |
2834 | sinfo->rx_bytes)) | |
2835 | goto nla_put_failure; | |
2836 | if ((sinfo->filled & STATION_INFO_TX_BYTES) && | |
2837 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, | |
2838 | sinfo->tx_bytes)) | |
2839 | goto nla_put_failure; | |
2840 | if ((sinfo->filled & STATION_INFO_LLID) && | |
2841 | nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid)) | |
2842 | goto nla_put_failure; | |
2843 | if ((sinfo->filled & STATION_INFO_PLID) && | |
2844 | nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid)) | |
2845 | goto nla_put_failure; | |
2846 | if ((sinfo->filled & STATION_INFO_PLINK_STATE) && | |
2847 | nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE, | |
2848 | sinfo->plink_state)) | |
2849 | goto nla_put_failure; | |
2850 | switch (rdev->wiphy.signal_type) { | |
2851 | case CFG80211_SIGNAL_TYPE_MBM: | |
2852 | if ((sinfo->filled & STATION_INFO_SIGNAL) && | |
2853 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL, | |
2854 | sinfo->signal)) | |
2855 | goto nla_put_failure; | |
2856 | if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) && | |
2857 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
2858 | sinfo->signal_avg)) | |
2859 | goto nla_put_failure; | |
2860 | break; | |
2861 | default: | |
2862 | break; | |
2863 | } | |
2864 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
2865 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, | |
2866 | NL80211_STA_INFO_TX_BITRATE)) | |
2867 | goto nla_put_failure; | |
2868 | } | |
2869 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { | |
2870 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
2871 | NL80211_STA_INFO_RX_BITRATE)) | |
2872 | goto nla_put_failure; | |
2873 | } | |
2874 | if ((sinfo->filled & STATION_INFO_RX_PACKETS) && | |
2875 | nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS, | |
2876 | sinfo->rx_packets)) | |
2877 | goto nla_put_failure; | |
2878 | if ((sinfo->filled & STATION_INFO_TX_PACKETS) && | |
2879 | nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS, | |
2880 | sinfo->tx_packets)) | |
2881 | goto nla_put_failure; | |
2882 | if ((sinfo->filled & STATION_INFO_TX_RETRIES) && | |
2883 | nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES, | |
2884 | sinfo->tx_retries)) | |
2885 | goto nla_put_failure; | |
2886 | if ((sinfo->filled & STATION_INFO_TX_FAILED) && | |
2887 | nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, | |
2888 | sinfo->tx_failed)) | |
2889 | goto nla_put_failure; | |
2890 | if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && | |
2891 | nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, | |
2892 | sinfo->beacon_loss_count)) | |
2893 | goto nla_put_failure; | |
2894 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { | |
2895 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
2896 | if (!bss_param) | |
2897 | goto nla_put_failure; | |
2898 | ||
2899 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && | |
2900 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
2901 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
2902 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
2903 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
2904 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
2905 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
2906 | sinfo->bss_param.dtim_period) || | |
2907 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
2908 | sinfo->bss_param.beacon_interval)) | |
2909 | goto nla_put_failure; | |
2910 | ||
2911 | nla_nest_end(msg, bss_param); | |
2912 | } | |
2913 | if ((sinfo->filled & STATION_INFO_STA_FLAGS) && | |
2914 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, | |
2915 | sizeof(struct nl80211_sta_flag_update), | |
2916 | &sinfo->sta_flags)) | |
2917 | goto nla_put_failure; | |
2918 | if ((sinfo->filled & STATION_INFO_T_OFFSET) && | |
2919 | nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET, | |
2920 | sinfo->t_offset)) | |
2921 | goto nla_put_failure; | |
2922 | nla_nest_end(msg, sinfoattr); | |
2923 | ||
2924 | if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) && | |
2925 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, | |
2926 | sinfo->assoc_req_ies)) | |
2927 | goto nla_put_failure; | |
2928 | ||
2929 | return genlmsg_end(msg, hdr); | |
2930 | ||
2931 | nla_put_failure: | |
2932 | genlmsg_cancel(msg, hdr); | |
2933 | return -EMSGSIZE; | |
2934 | } | |
2935 | ||
2936 | static int nl80211_dump_station(struct sk_buff *skb, | |
2937 | struct netlink_callback *cb) | |
2938 | { | |
2939 | struct station_info sinfo; | |
2940 | struct cfg80211_registered_device *dev; | |
2941 | struct net_device *netdev; | |
2942 | u8 mac_addr[ETH_ALEN]; | |
2943 | int sta_idx = cb->args[1]; | |
2944 | int err; | |
2945 | ||
2946 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); | |
2947 | if (err) | |
2948 | return err; | |
2949 | ||
2950 | if (!dev->ops->dump_station) { | |
2951 | err = -EOPNOTSUPP; | |
2952 | goto out_err; | |
2953 | } | |
2954 | ||
2955 | while (1) { | |
2956 | memset(&sinfo, 0, sizeof(sinfo)); | |
2957 | err = rdev_dump_station(dev, netdev, sta_idx, | |
2958 | mac_addr, &sinfo); | |
2959 | if (err == -ENOENT) | |
2960 | break; | |
2961 | if (err) | |
2962 | goto out_err; | |
2963 | ||
2964 | if (nl80211_send_station(skb, | |
2965 | NETLINK_CB(cb->skb).portid, | |
2966 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2967 | dev, netdev, mac_addr, | |
2968 | &sinfo) < 0) | |
2969 | goto out; | |
2970 | ||
2971 | sta_idx++; | |
2972 | } | |
2973 | ||
2974 | ||
2975 | out: | |
2976 | cb->args[1] = sta_idx; | |
2977 | err = skb->len; | |
2978 | out_err: | |
2979 | nl80211_finish_netdev_dump(dev); | |
2980 | ||
2981 | return err; | |
2982 | } | |
2983 | ||
2984 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) | |
2985 | { | |
2986 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2987 | struct net_device *dev = info->user_ptr[1]; | |
2988 | struct station_info sinfo; | |
2989 | struct sk_buff *msg; | |
2990 | u8 *mac_addr = NULL; | |
2991 | int err; | |
2992 | ||
2993 | memset(&sinfo, 0, sizeof(sinfo)); | |
2994 | ||
2995 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2996 | return -EINVAL; | |
2997 | ||
2998 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2999 | ||
3000 | if (!rdev->ops->get_station) | |
3001 | return -EOPNOTSUPP; | |
3002 | ||
3003 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); | |
3004 | if (err) | |
3005 | return err; | |
3006 | ||
3007 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3008 | if (!msg) | |
3009 | return -ENOMEM; | |
3010 | ||
3011 | if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0, | |
3012 | rdev, dev, mac_addr, &sinfo) < 0) { | |
3013 | nlmsg_free(msg); | |
3014 | return -ENOBUFS; | |
3015 | } | |
3016 | ||
3017 | return genlmsg_reply(msg, info); | |
3018 | } | |
3019 | ||
3020 | /* | |
3021 | * Get vlan interface making sure it is running and on the right wiphy. | |
3022 | */ | |
3023 | static struct net_device *get_vlan(struct genl_info *info, | |
3024 | struct cfg80211_registered_device *rdev) | |
3025 | { | |
3026 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; | |
3027 | struct net_device *v; | |
3028 | int ret; | |
3029 | ||
3030 | if (!vlanattr) | |
3031 | return NULL; | |
3032 | ||
3033 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
3034 | if (!v) | |
3035 | return ERR_PTR(-ENODEV); | |
3036 | ||
3037 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
3038 | ret = -EINVAL; | |
3039 | goto error; | |
3040 | } | |
3041 | ||
3042 | if (!netif_running(v)) { | |
3043 | ret = -ENETDOWN; | |
3044 | goto error; | |
3045 | } | |
3046 | ||
3047 | return v; | |
3048 | error: | |
3049 | dev_put(v); | |
3050 | return ERR_PTR(ret); | |
3051 | } | |
3052 | ||
3053 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
3054 | { | |
3055 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3056 | int err; | |
3057 | struct net_device *dev = info->user_ptr[1]; | |
3058 | struct station_parameters params; | |
3059 | u8 *mac_addr = NULL; | |
3060 | ||
3061 | memset(¶ms, 0, sizeof(params)); | |
3062 | ||
3063 | params.listen_interval = -1; | |
3064 | params.plink_state = -1; | |
3065 | ||
3066 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
3067 | return -EINVAL; | |
3068 | ||
3069 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3070 | return -EINVAL; | |
3071 | ||
3072 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3073 | ||
3074 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
3075 | params.supported_rates = | |
3076 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3077 | params.supported_rates_len = | |
3078 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3079 | } | |
3080 | ||
3081 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
3082 | params.listen_interval = | |
3083 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
3084 | ||
3085 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) | |
3086 | params.ht_capa = | |
3087 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
3088 | ||
3089 | if (!rdev->ops->change_station) | |
3090 | return -EOPNOTSUPP; | |
3091 | ||
3092 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) | |
3093 | return -EINVAL; | |
3094 | ||
3095 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) | |
3096 | params.plink_action = | |
3097 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3098 | ||
3099 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) | |
3100 | params.plink_state = | |
3101 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); | |
3102 | ||
3103 | switch (dev->ieee80211_ptr->iftype) { | |
3104 | case NL80211_IFTYPE_AP: | |
3105 | case NL80211_IFTYPE_AP_VLAN: | |
3106 | case NL80211_IFTYPE_P2P_GO: | |
3107 | /* disallow mesh-specific things */ | |
3108 | if (params.plink_action) | |
3109 | return -EINVAL; | |
3110 | ||
3111 | /* TDLS can't be set, ... */ | |
3112 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3113 | return -EINVAL; | |
3114 | /* | |
3115 | * ... but don't bother the driver with it. This works around | |
3116 | * a hostapd/wpa_supplicant issue -- it always includes the | |
3117 | * TLDS_PEER flag in the mask even for AP mode. | |
3118 | */ | |
3119 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3120 | ||
3121 | /* accept only the listed bits */ | |
3122 | if (params.sta_flags_mask & | |
3123 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3124 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3125 | BIT(NL80211_STA_FLAG_WME) | | |
3126 | BIT(NL80211_STA_FLAG_MFP))) | |
3127 | return -EINVAL; | |
3128 | ||
3129 | /* must be last in here for error handling */ | |
3130 | params.vlan = get_vlan(info, rdev); | |
3131 | if (IS_ERR(params.vlan)) | |
3132 | return PTR_ERR(params.vlan); | |
3133 | break; | |
3134 | case NL80211_IFTYPE_P2P_CLIENT: | |
3135 | case NL80211_IFTYPE_STATION: | |
3136 | /* | |
3137 | * Don't allow userspace to change the TDLS_PEER flag, | |
3138 | * but silently ignore attempts to change it since we | |
3139 | * don't have state here to verify that it doesn't try | |
3140 | * to change the flag. | |
3141 | */ | |
3142 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3143 | /* fall through */ | |
3144 | case NL80211_IFTYPE_ADHOC: | |
3145 | /* disallow things sta doesn't support */ | |
3146 | if (params.plink_action) | |
3147 | return -EINVAL; | |
3148 | if (params.ht_capa) | |
3149 | return -EINVAL; | |
3150 | if (params.listen_interval >= 0) | |
3151 | return -EINVAL; | |
3152 | /* reject any changes other than AUTHORIZED */ | |
3153 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
3154 | return -EINVAL; | |
3155 | break; | |
3156 | case NL80211_IFTYPE_MESH_POINT: | |
3157 | /* disallow things mesh doesn't support */ | |
3158 | if (params.vlan) | |
3159 | return -EINVAL; | |
3160 | if (params.ht_capa) | |
3161 | return -EINVAL; | |
3162 | if (params.listen_interval >= 0) | |
3163 | return -EINVAL; | |
3164 | /* | |
3165 | * No special handling for TDLS here -- the userspace | |
3166 | * mesh code doesn't have this bug. | |
3167 | */ | |
3168 | if (params.sta_flags_mask & | |
3169 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3170 | BIT(NL80211_STA_FLAG_MFP) | | |
3171 | BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
3172 | return -EINVAL; | |
3173 | break; | |
3174 | default: | |
3175 | return -EOPNOTSUPP; | |
3176 | } | |
3177 | ||
3178 | /* be aware of params.vlan when changing code here */ | |
3179 | ||
3180 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); | |
3181 | ||
3182 | if (params.vlan) | |
3183 | dev_put(params.vlan); | |
3184 | ||
3185 | return err; | |
3186 | } | |
3187 | ||
3188 | static struct nla_policy | |
3189 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { | |
3190 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, | |
3191 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
3192 | }; | |
3193 | ||
3194 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
3195 | { | |
3196 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3197 | int err; | |
3198 | struct net_device *dev = info->user_ptr[1]; | |
3199 | struct station_parameters params; | |
3200 | u8 *mac_addr = NULL; | |
3201 | ||
3202 | memset(¶ms, 0, sizeof(params)); | |
3203 | ||
3204 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3205 | return -EINVAL; | |
3206 | ||
3207 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
3208 | return -EINVAL; | |
3209 | ||
3210 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
3211 | return -EINVAL; | |
3212 | ||
3213 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
3214 | return -EINVAL; | |
3215 | ||
3216 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3217 | params.supported_rates = | |
3218 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3219 | params.supported_rates_len = | |
3220 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3221 | params.listen_interval = | |
3222 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
3223 | ||
3224 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
3225 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
3226 | return -EINVAL; | |
3227 | ||
3228 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) | |
3229 | params.ht_capa = | |
3230 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
3231 | ||
3232 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) | |
3233 | params.vht_capa = | |
3234 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
3235 | ||
3236 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) | |
3237 | params.plink_action = | |
3238 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3239 | ||
3240 | if (!rdev->ops->add_station) | |
3241 | return -EOPNOTSUPP; | |
3242 | ||
3243 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) | |
3244 | return -EINVAL; | |
3245 | ||
3246 | switch (dev->ieee80211_ptr->iftype) { | |
3247 | case NL80211_IFTYPE_AP: | |
3248 | case NL80211_IFTYPE_AP_VLAN: | |
3249 | case NL80211_IFTYPE_P2P_GO: | |
3250 | /* parse WME attributes if sta is WME capable */ | |
3251 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
3252 | (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) && | |
3253 | info->attrs[NL80211_ATTR_STA_WME]) { | |
3254 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; | |
3255 | struct nlattr *nla; | |
3256 | ||
3257 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
3258 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
3259 | nl80211_sta_wme_policy); | |
3260 | if (err) | |
3261 | return err; | |
3262 | ||
3263 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
3264 | params.uapsd_queues = | |
3265 | nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
3266 | if (params.uapsd_queues & | |
3267 | ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
3268 | return -EINVAL; | |
3269 | ||
3270 | if (tb[NL80211_STA_WME_MAX_SP]) | |
3271 | params.max_sp = | |
3272 | nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
3273 | ||
3274 | if (params.max_sp & | |
3275 | ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
3276 | return -EINVAL; | |
3277 | ||
3278 | params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; | |
3279 | } | |
3280 | /* TDLS peers cannot be added */ | |
3281 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3282 | return -EINVAL; | |
3283 | /* but don't bother the driver with it */ | |
3284 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3285 | ||
3286 | /* must be last in here for error handling */ | |
3287 | params.vlan = get_vlan(info, rdev); | |
3288 | if (IS_ERR(params.vlan)) | |
3289 | return PTR_ERR(params.vlan); | |
3290 | break; | |
3291 | case NL80211_IFTYPE_MESH_POINT: | |
3292 | /* TDLS peers cannot be added */ | |
3293 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3294 | return -EINVAL; | |
3295 | break; | |
3296 | case NL80211_IFTYPE_STATION: | |
3297 | /* Only TDLS peers can be added */ | |
3298 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3299 | return -EINVAL; | |
3300 | /* Can only add if TDLS ... */ | |
3301 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
3302 | return -EOPNOTSUPP; | |
3303 | /* ... with external setup is supported */ | |
3304 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
3305 | return -EOPNOTSUPP; | |
3306 | break; | |
3307 | default: | |
3308 | return -EOPNOTSUPP; | |
3309 | } | |
3310 | ||
3311 | /* be aware of params.vlan when changing code here */ | |
3312 | ||
3313 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); | |
3314 | ||
3315 | if (params.vlan) | |
3316 | dev_put(params.vlan); | |
3317 | return err; | |
3318 | } | |
3319 | ||
3320 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
3321 | { | |
3322 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3323 | struct net_device *dev = info->user_ptr[1]; | |
3324 | u8 *mac_addr = NULL; | |
3325 | ||
3326 | if (info->attrs[NL80211_ATTR_MAC]) | |
3327 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3328 | ||
3329 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3330 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
3331 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && | |
3332 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3333 | return -EINVAL; | |
3334 | ||
3335 | if (!rdev->ops->del_station) | |
3336 | return -EOPNOTSUPP; | |
3337 | ||
3338 | return rdev_del_station(rdev, dev, mac_addr); | |
3339 | } | |
3340 | ||
3341 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, | |
3342 | int flags, struct net_device *dev, | |
3343 | u8 *dst, u8 *next_hop, | |
3344 | struct mpath_info *pinfo) | |
3345 | { | |
3346 | void *hdr; | |
3347 | struct nlattr *pinfoattr; | |
3348 | ||
3349 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); | |
3350 | if (!hdr) | |
3351 | return -1; | |
3352 | ||
3353 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
3354 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
3355 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
3356 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
3357 | goto nla_put_failure; | |
3358 | ||
3359 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
3360 | if (!pinfoattr) | |
3361 | goto nla_put_failure; | |
3362 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && | |
3363 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
3364 | pinfo->frame_qlen)) | |
3365 | goto nla_put_failure; | |
3366 | if (((pinfo->filled & MPATH_INFO_SN) && | |
3367 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
3368 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
3369 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
3370 | pinfo->metric)) || | |
3371 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
3372 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
3373 | pinfo->exptime)) || | |
3374 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
3375 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
3376 | pinfo->flags)) || | |
3377 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
3378 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
3379 | pinfo->discovery_timeout)) || | |
3380 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
3381 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
3382 | pinfo->discovery_retries))) | |
3383 | goto nla_put_failure; | |
3384 | ||
3385 | nla_nest_end(msg, pinfoattr); | |
3386 | ||
3387 | return genlmsg_end(msg, hdr); | |
3388 | ||
3389 | nla_put_failure: | |
3390 | genlmsg_cancel(msg, hdr); | |
3391 | return -EMSGSIZE; | |
3392 | } | |
3393 | ||
3394 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
3395 | struct netlink_callback *cb) | |
3396 | { | |
3397 | struct mpath_info pinfo; | |
3398 | struct cfg80211_registered_device *dev; | |
3399 | struct net_device *netdev; | |
3400 | u8 dst[ETH_ALEN]; | |
3401 | u8 next_hop[ETH_ALEN]; | |
3402 | int path_idx = cb->args[1]; | |
3403 | int err; | |
3404 | ||
3405 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); | |
3406 | if (err) | |
3407 | return err; | |
3408 | ||
3409 | if (!dev->ops->dump_mpath) { | |
3410 | err = -EOPNOTSUPP; | |
3411 | goto out_err; | |
3412 | } | |
3413 | ||
3414 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { | |
3415 | err = -EOPNOTSUPP; | |
3416 | goto out_err; | |
3417 | } | |
3418 | ||
3419 | while (1) { | |
3420 | err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop, | |
3421 | &pinfo); | |
3422 | if (err == -ENOENT) | |
3423 | break; | |
3424 | if (err) | |
3425 | goto out_err; | |
3426 | ||
3427 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, | |
3428 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3429 | netdev, dst, next_hop, | |
3430 | &pinfo) < 0) | |
3431 | goto out; | |
3432 | ||
3433 | path_idx++; | |
3434 | } | |
3435 | ||
3436 | ||
3437 | out: | |
3438 | cb->args[1] = path_idx; | |
3439 | err = skb->len; | |
3440 | out_err: | |
3441 | nl80211_finish_netdev_dump(dev); | |
3442 | return err; | |
3443 | } | |
3444 | ||
3445 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
3446 | { | |
3447 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3448 | int err; | |
3449 | struct net_device *dev = info->user_ptr[1]; | |
3450 | struct mpath_info pinfo; | |
3451 | struct sk_buff *msg; | |
3452 | u8 *dst = NULL; | |
3453 | u8 next_hop[ETH_ALEN]; | |
3454 | ||
3455 | memset(&pinfo, 0, sizeof(pinfo)); | |
3456 | ||
3457 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3458 | return -EINVAL; | |
3459 | ||
3460 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3461 | ||
3462 | if (!rdev->ops->get_mpath) | |
3463 | return -EOPNOTSUPP; | |
3464 | ||
3465 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
3466 | return -EOPNOTSUPP; | |
3467 | ||
3468 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); | |
3469 | if (err) | |
3470 | return err; | |
3471 | ||
3472 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3473 | if (!msg) | |
3474 | return -ENOMEM; | |
3475 | ||
3476 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, | |
3477 | dev, dst, next_hop, &pinfo) < 0) { | |
3478 | nlmsg_free(msg); | |
3479 | return -ENOBUFS; | |
3480 | } | |
3481 | ||
3482 | return genlmsg_reply(msg, info); | |
3483 | } | |
3484 | ||
3485 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
3486 | { | |
3487 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3488 | struct net_device *dev = info->user_ptr[1]; | |
3489 | u8 *dst = NULL; | |
3490 | u8 *next_hop = NULL; | |
3491 | ||
3492 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3493 | return -EINVAL; | |
3494 | ||
3495 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3496 | return -EINVAL; | |
3497 | ||
3498 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3499 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3500 | ||
3501 | if (!rdev->ops->change_mpath) | |
3502 | return -EOPNOTSUPP; | |
3503 | ||
3504 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
3505 | return -EOPNOTSUPP; | |
3506 | ||
3507 | return rdev_change_mpath(rdev, dev, dst, next_hop); | |
3508 | } | |
3509 | ||
3510 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
3511 | { | |
3512 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3513 | struct net_device *dev = info->user_ptr[1]; | |
3514 | u8 *dst = NULL; | |
3515 | u8 *next_hop = NULL; | |
3516 | ||
3517 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3518 | return -EINVAL; | |
3519 | ||
3520 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3521 | return -EINVAL; | |
3522 | ||
3523 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3524 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3525 | ||
3526 | if (!rdev->ops->add_mpath) | |
3527 | return -EOPNOTSUPP; | |
3528 | ||
3529 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
3530 | return -EOPNOTSUPP; | |
3531 | ||
3532 | return rdev_add_mpath(rdev, dev, dst, next_hop); | |
3533 | } | |
3534 | ||
3535 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
3536 | { | |
3537 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3538 | struct net_device *dev = info->user_ptr[1]; | |
3539 | u8 *dst = NULL; | |
3540 | ||
3541 | if (info->attrs[NL80211_ATTR_MAC]) | |
3542 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3543 | ||
3544 | if (!rdev->ops->del_mpath) | |
3545 | return -EOPNOTSUPP; | |
3546 | ||
3547 | return rdev_del_mpath(rdev, dev, dst); | |
3548 | } | |
3549 | ||
3550 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) | |
3551 | { | |
3552 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3553 | struct net_device *dev = info->user_ptr[1]; | |
3554 | struct bss_parameters params; | |
3555 | ||
3556 | memset(¶ms, 0, sizeof(params)); | |
3557 | /* default to not changing parameters */ | |
3558 | params.use_cts_prot = -1; | |
3559 | params.use_short_preamble = -1; | |
3560 | params.use_short_slot_time = -1; | |
3561 | params.ap_isolate = -1; | |
3562 | params.ht_opmode = -1; | |
3563 | ||
3564 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
3565 | params.use_cts_prot = | |
3566 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
3567 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
3568 | params.use_short_preamble = | |
3569 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
3570 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
3571 | params.use_short_slot_time = | |
3572 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
3573 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { | |
3574 | params.basic_rates = | |
3575 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3576 | params.basic_rates_len = | |
3577 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3578 | } | |
3579 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) | |
3580 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
3581 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) | |
3582 | params.ht_opmode = | |
3583 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
3584 | ||
3585 | if (!rdev->ops->change_bss) | |
3586 | return -EOPNOTSUPP; | |
3587 | ||
3588 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3589 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3590 | return -EOPNOTSUPP; | |
3591 | ||
3592 | return rdev_change_bss(rdev, dev, ¶ms); | |
3593 | } | |
3594 | ||
3595 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
3596 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
3597 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
3598 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
3599 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
3600 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
3601 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
3602 | }; | |
3603 | ||
3604 | static int parse_reg_rule(struct nlattr *tb[], | |
3605 | struct ieee80211_reg_rule *reg_rule) | |
3606 | { | |
3607 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
3608 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
3609 | ||
3610 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
3611 | return -EINVAL; | |
3612 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
3613 | return -EINVAL; | |
3614 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
3615 | return -EINVAL; | |
3616 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
3617 | return -EINVAL; | |
3618 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
3619 | return -EINVAL; | |
3620 | ||
3621 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
3622 | ||
3623 | freq_range->start_freq_khz = | |
3624 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
3625 | freq_range->end_freq_khz = | |
3626 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
3627 | freq_range->max_bandwidth_khz = | |
3628 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
3629 | ||
3630 | power_rule->max_eirp = | |
3631 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
3632 | ||
3633 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
3634 | power_rule->max_antenna_gain = | |
3635 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
3636 | ||
3637 | return 0; | |
3638 | } | |
3639 | ||
3640 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
3641 | { | |
3642 | int r; | |
3643 | char *data = NULL; | |
3644 | enum nl80211_user_reg_hint_type user_reg_hint_type; | |
3645 | ||
3646 | /* | |
3647 | * You should only get this when cfg80211 hasn't yet initialized | |
3648 | * completely when built-in to the kernel right between the time | |
3649 | * window between nl80211_init() and regulatory_init(), if that is | |
3650 | * even possible. | |
3651 | */ | |
3652 | mutex_lock(&cfg80211_mutex); | |
3653 | if (unlikely(!cfg80211_regdomain)) { | |
3654 | mutex_unlock(&cfg80211_mutex); | |
3655 | return -EINPROGRESS; | |
3656 | } | |
3657 | mutex_unlock(&cfg80211_mutex); | |
3658 | ||
3659 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
3660 | return -EINVAL; | |
3661 | ||
3662 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3663 | ||
3664 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) | |
3665 | user_reg_hint_type = | |
3666 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
3667 | else | |
3668 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
3669 | ||
3670 | switch (user_reg_hint_type) { | |
3671 | case NL80211_USER_REG_HINT_USER: | |
3672 | case NL80211_USER_REG_HINT_CELL_BASE: | |
3673 | break; | |
3674 | default: | |
3675 | return -EINVAL; | |
3676 | } | |
3677 | ||
3678 | r = regulatory_hint_user(data, user_reg_hint_type); | |
3679 | ||
3680 | return r; | |
3681 | } | |
3682 | ||
3683 | static int nl80211_get_mesh_config(struct sk_buff *skb, | |
3684 | struct genl_info *info) | |
3685 | { | |
3686 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3687 | struct net_device *dev = info->user_ptr[1]; | |
3688 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3689 | struct mesh_config cur_params; | |
3690 | int err = 0; | |
3691 | void *hdr; | |
3692 | struct nlattr *pinfoattr; | |
3693 | struct sk_buff *msg; | |
3694 | ||
3695 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) | |
3696 | return -EOPNOTSUPP; | |
3697 | ||
3698 | if (!rdev->ops->get_mesh_config) | |
3699 | return -EOPNOTSUPP; | |
3700 | ||
3701 | wdev_lock(wdev); | |
3702 | /* If not connected, get default parameters */ | |
3703 | if (!wdev->mesh_id_len) | |
3704 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
3705 | else | |
3706 | err = rdev_get_mesh_config(rdev, dev, &cur_params); | |
3707 | wdev_unlock(wdev); | |
3708 | ||
3709 | if (err) | |
3710 | return err; | |
3711 | ||
3712 | /* Draw up a netlink message to send back */ | |
3713 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3714 | if (!msg) | |
3715 | return -ENOMEM; | |
3716 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
3717 | NL80211_CMD_GET_MESH_CONFIG); | |
3718 | if (!hdr) | |
3719 | goto out; | |
3720 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); | |
3721 | if (!pinfoattr) | |
3722 | goto nla_put_failure; | |
3723 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
3724 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
3725 | cur_params.dot11MeshRetryTimeout) || | |
3726 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
3727 | cur_params.dot11MeshConfirmTimeout) || | |
3728 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
3729 | cur_params.dot11MeshHoldingTimeout) || | |
3730 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
3731 | cur_params.dot11MeshMaxPeerLinks) || | |
3732 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
3733 | cur_params.dot11MeshMaxRetries) || | |
3734 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
3735 | cur_params.dot11MeshTTL) || | |
3736 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
3737 | cur_params.element_ttl) || | |
3738 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
3739 | cur_params.auto_open_plinks) || | |
3740 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, | |
3741 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
3742 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
3743 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
3744 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
3745 | cur_params.path_refresh_time) || | |
3746 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3747 | cur_params.min_discovery_timeout) || | |
3748 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3749 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
3750 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3751 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
3752 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
3753 | cur_params.dot11MeshHWMPperrMinInterval) || | |
3754 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3755 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
3756 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
3757 | cur_params.dot11MeshHWMPRootMode) || | |
3758 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3759 | cur_params.dot11MeshHWMPRannInterval) || | |
3760 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3761 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
3762 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
3763 | cur_params.dot11MeshForwarding) || | |
3764 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
3765 | cur_params.rssi_threshold) || | |
3766 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
3767 | cur_params.ht_opmode) || | |
3768 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
3769 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
3770 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
3771 | cur_params.dot11MeshHWMProotInterval) || | |
3772 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3773 | cur_params.dot11MeshHWMPconfirmationInterval)) | |
3774 | goto nla_put_failure; | |
3775 | nla_nest_end(msg, pinfoattr); | |
3776 | genlmsg_end(msg, hdr); | |
3777 | return genlmsg_reply(msg, info); | |
3778 | ||
3779 | nla_put_failure: | |
3780 | genlmsg_cancel(msg, hdr); | |
3781 | out: | |
3782 | nlmsg_free(msg); | |
3783 | return -ENOBUFS; | |
3784 | } | |
3785 | ||
3786 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { | |
3787 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
3788 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
3789 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
3790 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
3791 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
3792 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
3793 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, | |
3794 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
3795 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, | |
3796 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
3797 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
3798 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
3799 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
3800 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
3801 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, | |
3802 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
3803 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, | |
3804 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, | |
3805 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, | |
3806 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, | |
3807 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, | |
3808 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
3809 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, | |
3810 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
3811 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, | |
3812 | }; | |
3813 | ||
3814 | static const struct nla_policy | |
3815 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
3816 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, | |
3817 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, | |
3818 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
3819 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, | |
3820 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, | |
3821 | .len = IEEE80211_MAX_DATA_LEN }, | |
3822 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, | |
3823 | }; | |
3824 | ||
3825 | static int nl80211_parse_mesh_config(struct genl_info *info, | |
3826 | struct mesh_config *cfg, | |
3827 | u32 *mask_out) | |
3828 | { | |
3829 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
3830 | u32 mask = 0; | |
3831 | ||
3832 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
3833 | do {\ | |
3834 | if (table[attr_num]) {\ | |
3835 | cfg->param = nla_fn(table[attr_num]); \ | |
3836 | mask |= (1 << (attr_num - 1)); \ | |
3837 | } \ | |
3838 | } while (0);\ | |
3839 | ||
3840 | ||
3841 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) | |
3842 | return -EINVAL; | |
3843 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
3844 | info->attrs[NL80211_ATTR_MESH_CONFIG], | |
3845 | nl80211_meshconf_params_policy)) | |
3846 | return -EINVAL; | |
3847 | ||
3848 | /* This makes sure that there aren't more than 32 mesh config | |
3849 | * parameters (otherwise our bitfield scheme would not work.) */ | |
3850 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
3851 | ||
3852 | /* Fill in the params struct */ | |
3853 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
3854 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, | |
3855 | nla_get_u16); | |
3856 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
3857 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
3858 | nla_get_u16); | |
3859 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
3860 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
3861 | nla_get_u16); | |
3862 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
3863 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, | |
3864 | nla_get_u16); | |
3865 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
3866 | mask, NL80211_MESHCONF_MAX_RETRIES, | |
3867 | nla_get_u8); | |
3868 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
3869 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
3870 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, | |
3871 | mask, NL80211_MESHCONF_ELEMENT_TTL, | |
3872 | nla_get_u8); | |
3873 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
3874 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
3875 | nla_get_u8); | |
3876 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask, | |
3877 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, | |
3878 | nla_get_u32); | |
3879 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
3880 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
3881 | nla_get_u8); | |
3882 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
3883 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
3884 | nla_get_u32); | |
3885 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
3886 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3887 | nla_get_u16); | |
3888 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask, | |
3889 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3890 | nla_get_u32); | |
3891 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
3892 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3893 | nla_get_u16); | |
3894 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, | |
3895 | mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
3896 | nla_get_u16); | |
3897 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
3898 | dot11MeshHWMPnetDiameterTraversalTime, mask, | |
3899 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3900 | nla_get_u16); | |
3901 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask, | |
3902 | NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8); | |
3903 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask, | |
3904 | NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3905 | nla_get_u16); | |
3906 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
3907 | dot11MeshGateAnnouncementProtocol, mask, | |
3908 | NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3909 | nla_get_u8); | |
3910 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, | |
3911 | mask, NL80211_MESHCONF_FORWARDING, | |
3912 | nla_get_u8); | |
3913 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, | |
3914 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, | |
3915 | nla_get_u32); | |
3916 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, | |
3917 | mask, NL80211_MESHCONF_HT_OPMODE, | |
3918 | nla_get_u16); | |
3919 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
3920 | mask, | |
3921 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
3922 | nla_get_u32); | |
3923 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, | |
3924 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
3925 | nla_get_u16); | |
3926 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
3927 | dot11MeshHWMPconfirmationInterval, mask, | |
3928 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3929 | nla_get_u16); | |
3930 | if (mask_out) | |
3931 | *mask_out = mask; | |
3932 | ||
3933 | return 0; | |
3934 | ||
3935 | #undef FILL_IN_MESH_PARAM_IF_SET | |
3936 | } | |
3937 | ||
3938 | static int nl80211_parse_mesh_setup(struct genl_info *info, | |
3939 | struct mesh_setup *setup) | |
3940 | { | |
3941 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; | |
3942 | ||
3943 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
3944 | return -EINVAL; | |
3945 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
3946 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
3947 | nl80211_mesh_setup_params_policy)) | |
3948 | return -EINVAL; | |
3949 | ||
3950 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) | |
3951 | setup->sync_method = | |
3952 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
3953 | IEEE80211_SYNC_METHOD_VENDOR : | |
3954 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
3955 | ||
3956 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) | |
3957 | setup->path_sel_proto = | |
3958 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
3959 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
3960 | IEEE80211_PATH_PROTOCOL_HWMP; | |
3961 | ||
3962 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
3963 | setup->path_metric = | |
3964 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
3965 | IEEE80211_PATH_METRIC_VENDOR : | |
3966 | IEEE80211_PATH_METRIC_AIRTIME; | |
3967 | ||
3968 | ||
3969 | if (tb[NL80211_MESH_SETUP_IE]) { | |
3970 | struct nlattr *ieattr = | |
3971 | tb[NL80211_MESH_SETUP_IE]; | |
3972 | if (!is_valid_ie_attr(ieattr)) | |
3973 | return -EINVAL; | |
3974 | setup->ie = nla_data(ieattr); | |
3975 | setup->ie_len = nla_len(ieattr); | |
3976 | } | |
3977 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); | |
3978 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
3979 | ||
3980 | return 0; | |
3981 | } | |
3982 | ||
3983 | static int nl80211_update_mesh_config(struct sk_buff *skb, | |
3984 | struct genl_info *info) | |
3985 | { | |
3986 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3987 | struct net_device *dev = info->user_ptr[1]; | |
3988 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3989 | struct mesh_config cfg; | |
3990 | u32 mask; | |
3991 | int err; | |
3992 | ||
3993 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) | |
3994 | return -EOPNOTSUPP; | |
3995 | ||
3996 | if (!rdev->ops->update_mesh_config) | |
3997 | return -EOPNOTSUPP; | |
3998 | ||
3999 | err = nl80211_parse_mesh_config(info, &cfg, &mask); | |
4000 | if (err) | |
4001 | return err; | |
4002 | ||
4003 | wdev_lock(wdev); | |
4004 | if (!wdev->mesh_id_len) | |
4005 | err = -ENOLINK; | |
4006 | ||
4007 | if (!err) | |
4008 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); | |
4009 | ||
4010 | wdev_unlock(wdev); | |
4011 | ||
4012 | return err; | |
4013 | } | |
4014 | ||
4015 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) | |
4016 | { | |
4017 | struct sk_buff *msg; | |
4018 | void *hdr = NULL; | |
4019 | struct nlattr *nl_reg_rules; | |
4020 | unsigned int i; | |
4021 | int err = -EINVAL; | |
4022 | ||
4023 | mutex_lock(&cfg80211_mutex); | |
4024 | ||
4025 | if (!cfg80211_regdomain) | |
4026 | goto out; | |
4027 | ||
4028 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4029 | if (!msg) { | |
4030 | err = -ENOBUFS; | |
4031 | goto out; | |
4032 | } | |
4033 | ||
4034 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
4035 | NL80211_CMD_GET_REG); | |
4036 | if (!hdr) | |
4037 | goto put_failure; | |
4038 | ||
4039 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
4040 | cfg80211_regdomain->alpha2) || | |
4041 | (cfg80211_regdomain->dfs_region && | |
4042 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, | |
4043 | cfg80211_regdomain->dfs_region))) | |
4044 | goto nla_put_failure; | |
4045 | ||
4046 | if (reg_last_request_cell_base() && | |
4047 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
4048 | NL80211_USER_REG_HINT_CELL_BASE)) | |
4049 | goto nla_put_failure; | |
4050 | ||
4051 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
4052 | if (!nl_reg_rules) | |
4053 | goto nla_put_failure; | |
4054 | ||
4055 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
4056 | struct nlattr *nl_reg_rule; | |
4057 | const struct ieee80211_reg_rule *reg_rule; | |
4058 | const struct ieee80211_freq_range *freq_range; | |
4059 | const struct ieee80211_power_rule *power_rule; | |
4060 | ||
4061 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
4062 | freq_range = ®_rule->freq_range; | |
4063 | power_rule = ®_rule->power_rule; | |
4064 | ||
4065 | nl_reg_rule = nla_nest_start(msg, i); | |
4066 | if (!nl_reg_rule) | |
4067 | goto nla_put_failure; | |
4068 | ||
4069 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
4070 | reg_rule->flags) || | |
4071 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
4072 | freq_range->start_freq_khz) || | |
4073 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
4074 | freq_range->end_freq_khz) || | |
4075 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
4076 | freq_range->max_bandwidth_khz) || | |
4077 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
4078 | power_rule->max_antenna_gain) || | |
4079 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
4080 | power_rule->max_eirp)) | |
4081 | goto nla_put_failure; | |
4082 | ||
4083 | nla_nest_end(msg, nl_reg_rule); | |
4084 | } | |
4085 | ||
4086 | nla_nest_end(msg, nl_reg_rules); | |
4087 | ||
4088 | genlmsg_end(msg, hdr); | |
4089 | err = genlmsg_reply(msg, info); | |
4090 | goto out; | |
4091 | ||
4092 | nla_put_failure: | |
4093 | genlmsg_cancel(msg, hdr); | |
4094 | put_failure: | |
4095 | nlmsg_free(msg); | |
4096 | err = -EMSGSIZE; | |
4097 | out: | |
4098 | mutex_unlock(&cfg80211_mutex); | |
4099 | return err; | |
4100 | } | |
4101 | ||
4102 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) | |
4103 | { | |
4104 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
4105 | struct nlattr *nl_reg_rule; | |
4106 | char *alpha2 = NULL; | |
4107 | int rem_reg_rules = 0, r = 0; | |
4108 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
4109 | u8 dfs_region = 0; | |
4110 | struct ieee80211_regdomain *rd = NULL; | |
4111 | ||
4112 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
4113 | return -EINVAL; | |
4114 | ||
4115 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
4116 | return -EINVAL; | |
4117 | ||
4118 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
4119 | ||
4120 | if (info->attrs[NL80211_ATTR_DFS_REGION]) | |
4121 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
4122 | ||
4123 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
4124 | rem_reg_rules) { | |
4125 | num_rules++; | |
4126 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4127 | return -EINVAL; | |
4128 | } | |
4129 | ||
4130 | mutex_lock(&cfg80211_mutex); | |
4131 | ||
4132 | if (!reg_is_valid_request(alpha2)) { | |
4133 | r = -EINVAL; | |
4134 | goto bad_reg; | |
4135 | } | |
4136 | ||
4137 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
4138 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
4139 | ||
4140 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
4141 | if (!rd) { | |
4142 | r = -ENOMEM; | |
4143 | goto bad_reg; | |
4144 | } | |
4145 | ||
4146 | rd->n_reg_rules = num_rules; | |
4147 | rd->alpha2[0] = alpha2[0]; | |
4148 | rd->alpha2[1] = alpha2[1]; | |
4149 | ||
4150 | /* | |
4151 | * Disable DFS master mode if the DFS region was | |
4152 | * not supported or known on this kernel. | |
4153 | */ | |
4154 | if (reg_supported_dfs_region(dfs_region)) | |
4155 | rd->dfs_region = dfs_region; | |
4156 | ||
4157 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
4158 | rem_reg_rules) { | |
4159 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
4160 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
4161 | reg_rule_policy); | |
4162 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
4163 | if (r) | |
4164 | goto bad_reg; | |
4165 | ||
4166 | rule_idx++; | |
4167 | ||
4168 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { | |
4169 | r = -EINVAL; | |
4170 | goto bad_reg; | |
4171 | } | |
4172 | } | |
4173 | ||
4174 | BUG_ON(rule_idx != num_rules); | |
4175 | ||
4176 | r = set_regdom(rd); | |
4177 | ||
4178 | mutex_unlock(&cfg80211_mutex); | |
4179 | ||
4180 | return r; | |
4181 | ||
4182 | bad_reg: | |
4183 | mutex_unlock(&cfg80211_mutex); | |
4184 | kfree(rd); | |
4185 | return r; | |
4186 | } | |
4187 | ||
4188 | static int validate_scan_freqs(struct nlattr *freqs) | |
4189 | { | |
4190 | struct nlattr *attr1, *attr2; | |
4191 | int n_channels = 0, tmp1, tmp2; | |
4192 | ||
4193 | nla_for_each_nested(attr1, freqs, tmp1) { | |
4194 | n_channels++; | |
4195 | /* | |
4196 | * Some hardware has a limited channel list for | |
4197 | * scanning, and it is pretty much nonsensical | |
4198 | * to scan for a channel twice, so disallow that | |
4199 | * and don't require drivers to check that the | |
4200 | * channel list they get isn't longer than what | |
4201 | * they can scan, as long as they can scan all | |
4202 | * the channels they registered at once. | |
4203 | */ | |
4204 | nla_for_each_nested(attr2, freqs, tmp2) | |
4205 | if (attr1 != attr2 && | |
4206 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
4207 | return 0; | |
4208 | } | |
4209 | ||
4210 | return n_channels; | |
4211 | } | |
4212 | ||
4213 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) | |
4214 | { | |
4215 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4216 | struct wireless_dev *wdev = info->user_ptr[1]; | |
4217 | struct cfg80211_scan_request *request; | |
4218 | struct nlattr *attr; | |
4219 | struct wiphy *wiphy; | |
4220 | int err, tmp, n_ssids = 0, n_channels, i; | |
4221 | size_t ie_len; | |
4222 | ||
4223 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4224 | return -EINVAL; | |
4225 | ||
4226 | wiphy = &rdev->wiphy; | |
4227 | ||
4228 | if (!rdev->ops->scan) | |
4229 | return -EOPNOTSUPP; | |
4230 | ||
4231 | if (rdev->scan_req) | |
4232 | return -EBUSY; | |
4233 | ||
4234 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4235 | n_channels = validate_scan_freqs( | |
4236 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4237 | if (!n_channels) | |
4238 | return -EINVAL; | |
4239 | } else { | |
4240 | enum ieee80211_band band; | |
4241 | n_channels = 0; | |
4242 | ||
4243 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
4244 | if (wiphy->bands[band]) | |
4245 | n_channels += wiphy->bands[band]->n_channels; | |
4246 | } | |
4247 | ||
4248 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
4249 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
4250 | n_ssids++; | |
4251 | ||
4252 | if (n_ssids > wiphy->max_scan_ssids) | |
4253 | return -EINVAL; | |
4254 | ||
4255 | if (info->attrs[NL80211_ATTR_IE]) | |
4256 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4257 | else | |
4258 | ie_len = 0; | |
4259 | ||
4260 | if (ie_len > wiphy->max_scan_ie_len) | |
4261 | return -EINVAL; | |
4262 | ||
4263 | request = kzalloc(sizeof(*request) | |
4264 | + sizeof(*request->ssids) * n_ssids | |
4265 | + sizeof(*request->channels) * n_channels | |
4266 | + ie_len, GFP_KERNEL); | |
4267 | if (!request) | |
4268 | return -ENOMEM; | |
4269 | ||
4270 | if (n_ssids) | |
4271 | request->ssids = (void *)&request->channels[n_channels]; | |
4272 | request->n_ssids = n_ssids; | |
4273 | if (ie_len) { | |
4274 | if (request->ssids) | |
4275 | request->ie = (void *)(request->ssids + n_ssids); | |
4276 | else | |
4277 | request->ie = (void *)(request->channels + n_channels); | |
4278 | } | |
4279 | ||
4280 | i = 0; | |
4281 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4282 | /* user specified, bail out if channel not found */ | |
4283 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { | |
4284 | struct ieee80211_channel *chan; | |
4285 | ||
4286 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4287 | ||
4288 | if (!chan) { | |
4289 | err = -EINVAL; | |
4290 | goto out_free; | |
4291 | } | |
4292 | ||
4293 | /* ignore disabled channels */ | |
4294 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4295 | continue; | |
4296 | ||
4297 | request->channels[i] = chan; | |
4298 | i++; | |
4299 | } | |
4300 | } else { | |
4301 | enum ieee80211_band band; | |
4302 | ||
4303 | /* all channels */ | |
4304 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4305 | int j; | |
4306 | if (!wiphy->bands[band]) | |
4307 | continue; | |
4308 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
4309 | struct ieee80211_channel *chan; | |
4310 | ||
4311 | chan = &wiphy->bands[band]->channels[j]; | |
4312 | ||
4313 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4314 | continue; | |
4315 | ||
4316 | request->channels[i] = chan; | |
4317 | i++; | |
4318 | } | |
4319 | } | |
4320 | } | |
4321 | ||
4322 | if (!i) { | |
4323 | err = -EINVAL; | |
4324 | goto out_free; | |
4325 | } | |
4326 | ||
4327 | request->n_channels = i; | |
4328 | ||
4329 | i = 0; | |
4330 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4331 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
4332 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { | |
4333 | err = -EINVAL; | |
4334 | goto out_free; | |
4335 | } | |
4336 | request->ssids[i].ssid_len = nla_len(attr); | |
4337 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
4338 | i++; | |
4339 | } | |
4340 | } | |
4341 | ||
4342 | if (info->attrs[NL80211_ATTR_IE]) { | |
4343 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4344 | memcpy((void *)request->ie, | |
4345 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
4346 | request->ie_len); | |
4347 | } | |
4348 | ||
4349 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) | |
4350 | if (wiphy->bands[i]) | |
4351 | request->rates[i] = | |
4352 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
4353 | ||
4354 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
4355 | nla_for_each_nested(attr, | |
4356 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
4357 | tmp) { | |
4358 | enum ieee80211_band band = nla_type(attr); | |
4359 | ||
4360 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { | |
4361 | err = -EINVAL; | |
4362 | goto out_free; | |
4363 | } | |
4364 | err = ieee80211_get_ratemask(wiphy->bands[band], | |
4365 | nla_data(attr), | |
4366 | nla_len(attr), | |
4367 | &request->rates[band]); | |
4368 | if (err) | |
4369 | goto out_free; | |
4370 | } | |
4371 | } | |
4372 | ||
4373 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { | |
4374 | request->flags = nla_get_u32( | |
4375 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
4376 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && | |
4377 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || | |
4378 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && | |
4379 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { | |
4380 | err = -EOPNOTSUPP; | |
4381 | goto out_free; | |
4382 | } | |
4383 | } | |
4384 | ||
4385 | request->no_cck = | |
4386 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
4387 | ||
4388 | request->wdev = wdev; | |
4389 | request->wiphy = &rdev->wiphy; | |
4390 | request->scan_start = jiffies; | |
4391 | ||
4392 | rdev->scan_req = request; | |
4393 | err = rdev_scan(rdev, request); | |
4394 | ||
4395 | if (!err) { | |
4396 | nl80211_send_scan_start(rdev, wdev); | |
4397 | if (wdev->netdev) | |
4398 | dev_hold(wdev->netdev); | |
4399 | } else { | |
4400 | out_free: | |
4401 | rdev->scan_req = NULL; | |
4402 | kfree(request); | |
4403 | } | |
4404 | ||
4405 | return err; | |
4406 | } | |
4407 | ||
4408 | static int nl80211_start_sched_scan(struct sk_buff *skb, | |
4409 | struct genl_info *info) | |
4410 | { | |
4411 | struct cfg80211_sched_scan_request *request; | |
4412 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4413 | struct net_device *dev = info->user_ptr[1]; | |
4414 | struct nlattr *attr; | |
4415 | struct wiphy *wiphy; | |
4416 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; | |
4417 | u32 interval; | |
4418 | enum ieee80211_band band; | |
4419 | size_t ie_len; | |
4420 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; | |
4421 | ||
4422 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4423 | !rdev->ops->sched_scan_start) | |
4424 | return -EOPNOTSUPP; | |
4425 | ||
4426 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4427 | return -EINVAL; | |
4428 | ||
4429 | if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
4430 | return -EINVAL; | |
4431 | ||
4432 | interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
4433 | if (interval == 0) | |
4434 | return -EINVAL; | |
4435 | ||
4436 | wiphy = &rdev->wiphy; | |
4437 | ||
4438 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4439 | n_channels = validate_scan_freqs( | |
4440 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4441 | if (!n_channels) | |
4442 | return -EINVAL; | |
4443 | } else { | |
4444 | n_channels = 0; | |
4445 | ||
4446 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
4447 | if (wiphy->bands[band]) | |
4448 | n_channels += wiphy->bands[band]->n_channels; | |
4449 | } | |
4450 | ||
4451 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
4452 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4453 | tmp) | |
4454 | n_ssids++; | |
4455 | ||
4456 | if (n_ssids > wiphy->max_sched_scan_ssids) | |
4457 | return -EINVAL; | |
4458 | ||
4459 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) | |
4460 | nla_for_each_nested(attr, | |
4461 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4462 | tmp) | |
4463 | n_match_sets++; | |
4464 | ||
4465 | if (n_match_sets > wiphy->max_match_sets) | |
4466 | return -EINVAL; | |
4467 | ||
4468 | if (info->attrs[NL80211_ATTR_IE]) | |
4469 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4470 | else | |
4471 | ie_len = 0; | |
4472 | ||
4473 | if (ie_len > wiphy->max_sched_scan_ie_len) | |
4474 | return -EINVAL; | |
4475 | ||
4476 | mutex_lock(&rdev->sched_scan_mtx); | |
4477 | ||
4478 | if (rdev->sched_scan_req) { | |
4479 | err = -EINPROGRESS; | |
4480 | goto out; | |
4481 | } | |
4482 | ||
4483 | request = kzalloc(sizeof(*request) | |
4484 | + sizeof(*request->ssids) * n_ssids | |
4485 | + sizeof(*request->match_sets) * n_match_sets | |
4486 | + sizeof(*request->channels) * n_channels | |
4487 | + ie_len, GFP_KERNEL); | |
4488 | if (!request) { | |
4489 | err = -ENOMEM; | |
4490 | goto out; | |
4491 | } | |
4492 | ||
4493 | if (n_ssids) | |
4494 | request->ssids = (void *)&request->channels[n_channels]; | |
4495 | request->n_ssids = n_ssids; | |
4496 | if (ie_len) { | |
4497 | if (request->ssids) | |
4498 | request->ie = (void *)(request->ssids + n_ssids); | |
4499 | else | |
4500 | request->ie = (void *)(request->channels + n_channels); | |
4501 | } | |
4502 | ||
4503 | if (n_match_sets) { | |
4504 | if (request->ie) | |
4505 | request->match_sets = (void *)(request->ie + ie_len); | |
4506 | else if (request->ssids) | |
4507 | request->match_sets = | |
4508 | (void *)(request->ssids + n_ssids); | |
4509 | else | |
4510 | request->match_sets = | |
4511 | (void *)(request->channels + n_channels); | |
4512 | } | |
4513 | request->n_match_sets = n_match_sets; | |
4514 | ||
4515 | i = 0; | |
4516 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4517 | /* user specified, bail out if channel not found */ | |
4518 | nla_for_each_nested(attr, | |
4519 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], | |
4520 | tmp) { | |
4521 | struct ieee80211_channel *chan; | |
4522 | ||
4523 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4524 | ||
4525 | if (!chan) { | |
4526 | err = -EINVAL; | |
4527 | goto out_free; | |
4528 | } | |
4529 | ||
4530 | /* ignore disabled channels */ | |
4531 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4532 | continue; | |
4533 | ||
4534 | request->channels[i] = chan; | |
4535 | i++; | |
4536 | } | |
4537 | } else { | |
4538 | /* all channels */ | |
4539 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4540 | int j; | |
4541 | if (!wiphy->bands[band]) | |
4542 | continue; | |
4543 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
4544 | struct ieee80211_channel *chan; | |
4545 | ||
4546 | chan = &wiphy->bands[band]->channels[j]; | |
4547 | ||
4548 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4549 | continue; | |
4550 | ||
4551 | request->channels[i] = chan; | |
4552 | i++; | |
4553 | } | |
4554 | } | |
4555 | } | |
4556 | ||
4557 | if (!i) { | |
4558 | err = -EINVAL; | |
4559 | goto out_free; | |
4560 | } | |
4561 | ||
4562 | request->n_channels = i; | |
4563 | ||
4564 | i = 0; | |
4565 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4566 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4567 | tmp) { | |
4568 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { | |
4569 | err = -EINVAL; | |
4570 | goto out_free; | |
4571 | } | |
4572 | request->ssids[i].ssid_len = nla_len(attr); | |
4573 | memcpy(request->ssids[i].ssid, nla_data(attr), | |
4574 | nla_len(attr)); | |
4575 | i++; | |
4576 | } | |
4577 | } | |
4578 | ||
4579 | i = 0; | |
4580 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
4581 | nla_for_each_nested(attr, | |
4582 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4583 | tmp) { | |
4584 | struct nlattr *ssid, *rssi; | |
4585 | ||
4586 | nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
4587 | nla_data(attr), nla_len(attr), | |
4588 | nl80211_match_policy); | |
4589 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; | |
4590 | if (ssid) { | |
4591 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { | |
4592 | err = -EINVAL; | |
4593 | goto out_free; | |
4594 | } | |
4595 | memcpy(request->match_sets[i].ssid.ssid, | |
4596 | nla_data(ssid), nla_len(ssid)); | |
4597 | request->match_sets[i].ssid.ssid_len = | |
4598 | nla_len(ssid); | |
4599 | } | |
4600 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
4601 | if (rssi) | |
4602 | request->rssi_thold = nla_get_u32(rssi); | |
4603 | else | |
4604 | request->rssi_thold = | |
4605 | NL80211_SCAN_RSSI_THOLD_OFF; | |
4606 | i++; | |
4607 | } | |
4608 | } | |
4609 | ||
4610 | if (info->attrs[NL80211_ATTR_IE]) { | |
4611 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4612 | memcpy((void *)request->ie, | |
4613 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
4614 | request->ie_len); | |
4615 | } | |
4616 | ||
4617 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { | |
4618 | request->flags = nla_get_u32( | |
4619 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
4620 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && | |
4621 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || | |
4622 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && | |
4623 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { | |
4624 | err = -EOPNOTSUPP; | |
4625 | goto out_free; | |
4626 | } | |
4627 | } | |
4628 | ||
4629 | request->dev = dev; | |
4630 | request->wiphy = &rdev->wiphy; | |
4631 | request->interval = interval; | |
4632 | request->scan_start = jiffies; | |
4633 | ||
4634 | err = rdev_sched_scan_start(rdev, dev, request); | |
4635 | if (!err) { | |
4636 | rdev->sched_scan_req = request; | |
4637 | nl80211_send_sched_scan(rdev, dev, | |
4638 | NL80211_CMD_START_SCHED_SCAN); | |
4639 | goto out; | |
4640 | } | |
4641 | ||
4642 | out_free: | |
4643 | kfree(request); | |
4644 | out: | |
4645 | mutex_unlock(&rdev->sched_scan_mtx); | |
4646 | return err; | |
4647 | } | |
4648 | ||
4649 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
4650 | struct genl_info *info) | |
4651 | { | |
4652 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4653 | int err; | |
4654 | ||
4655 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4656 | !rdev->ops->sched_scan_stop) | |
4657 | return -EOPNOTSUPP; | |
4658 | ||
4659 | mutex_lock(&rdev->sched_scan_mtx); | |
4660 | err = __cfg80211_stop_sched_scan(rdev, false); | |
4661 | mutex_unlock(&rdev->sched_scan_mtx); | |
4662 | ||
4663 | return err; | |
4664 | } | |
4665 | ||
4666 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, | |
4667 | u32 seq, int flags, | |
4668 | struct cfg80211_registered_device *rdev, | |
4669 | struct wireless_dev *wdev, | |
4670 | struct cfg80211_internal_bss *intbss) | |
4671 | { | |
4672 | struct cfg80211_bss *res = &intbss->pub; | |
4673 | void *hdr; | |
4674 | struct nlattr *bss; | |
4675 | ||
4676 | ASSERT_WDEV_LOCK(wdev); | |
4677 | ||
4678 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, | |
4679 | NL80211_CMD_NEW_SCAN_RESULTS); | |
4680 | if (!hdr) | |
4681 | return -1; | |
4682 | ||
4683 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); | |
4684 | ||
4685 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) || | |
4686 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) | |
4687 | goto nla_put_failure; | |
4688 | ||
4689 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
4690 | if (!bss) | |
4691 | goto nla_put_failure; | |
4692 | if ((!is_zero_ether_addr(res->bssid) && | |
4693 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) || | |
4694 | (res->information_elements && res->len_information_elements && | |
4695 | nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
4696 | res->len_information_elements, | |
4697 | res->information_elements)) || | |
4698 | (res->beacon_ies && res->len_beacon_ies && | |
4699 | res->beacon_ies != res->information_elements && | |
4700 | nla_put(msg, NL80211_BSS_BEACON_IES, | |
4701 | res->len_beacon_ies, res->beacon_ies))) | |
4702 | goto nla_put_failure; | |
4703 | if (res->tsf && | |
4704 | nla_put_u64(msg, NL80211_BSS_TSF, res->tsf)) | |
4705 | goto nla_put_failure; | |
4706 | if (res->beacon_interval && | |
4707 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
4708 | goto nla_put_failure; | |
4709 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
4710 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
4711 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, | |
4712 | jiffies_to_msecs(jiffies - intbss->ts))) | |
4713 | goto nla_put_failure; | |
4714 | ||
4715 | switch (rdev->wiphy.signal_type) { | |
4716 | case CFG80211_SIGNAL_TYPE_MBM: | |
4717 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) | |
4718 | goto nla_put_failure; | |
4719 | break; | |
4720 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
4721 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) | |
4722 | goto nla_put_failure; | |
4723 | break; | |
4724 | default: | |
4725 | break; | |
4726 | } | |
4727 | ||
4728 | switch (wdev->iftype) { | |
4729 | case NL80211_IFTYPE_P2P_CLIENT: | |
4730 | case NL80211_IFTYPE_STATION: | |
4731 | if (intbss == wdev->current_bss && | |
4732 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
4733 | NL80211_BSS_STATUS_ASSOCIATED)) | |
4734 | goto nla_put_failure; | |
4735 | break; | |
4736 | case NL80211_IFTYPE_ADHOC: | |
4737 | if (intbss == wdev->current_bss && | |
4738 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
4739 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
4740 | goto nla_put_failure; | |
4741 | break; | |
4742 | default: | |
4743 | break; | |
4744 | } | |
4745 | ||
4746 | nla_nest_end(msg, bss); | |
4747 | ||
4748 | return genlmsg_end(msg, hdr); | |
4749 | ||
4750 | nla_put_failure: | |
4751 | genlmsg_cancel(msg, hdr); | |
4752 | return -EMSGSIZE; | |
4753 | } | |
4754 | ||
4755 | static int nl80211_dump_scan(struct sk_buff *skb, | |
4756 | struct netlink_callback *cb) | |
4757 | { | |
4758 | struct cfg80211_registered_device *rdev; | |
4759 | struct net_device *dev; | |
4760 | struct cfg80211_internal_bss *scan; | |
4761 | struct wireless_dev *wdev; | |
4762 | int start = cb->args[1], idx = 0; | |
4763 | int err; | |
4764 | ||
4765 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); | |
4766 | if (err) | |
4767 | return err; | |
4768 | ||
4769 | wdev = dev->ieee80211_ptr; | |
4770 | ||
4771 | wdev_lock(wdev); | |
4772 | spin_lock_bh(&rdev->bss_lock); | |
4773 | cfg80211_bss_expire(rdev); | |
4774 | ||
4775 | cb->seq = rdev->bss_generation; | |
4776 | ||
4777 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
4778 | if (++idx <= start) | |
4779 | continue; | |
4780 | if (nl80211_send_bss(skb, cb, | |
4781 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4782 | rdev, wdev, scan) < 0) { | |
4783 | idx--; | |
4784 | break; | |
4785 | } | |
4786 | } | |
4787 | ||
4788 | spin_unlock_bh(&rdev->bss_lock); | |
4789 | wdev_unlock(wdev); | |
4790 | ||
4791 | cb->args[1] = idx; | |
4792 | nl80211_finish_netdev_dump(rdev); | |
4793 | ||
4794 | return skb->len; | |
4795 | } | |
4796 | ||
4797 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, | |
4798 | int flags, struct net_device *dev, | |
4799 | struct survey_info *survey) | |
4800 | { | |
4801 | void *hdr; | |
4802 | struct nlattr *infoattr; | |
4803 | ||
4804 | hdr = nl80211hdr_put(msg, portid, seq, flags, | |
4805 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
4806 | if (!hdr) | |
4807 | return -ENOMEM; | |
4808 | ||
4809 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) | |
4810 | goto nla_put_failure; | |
4811 | ||
4812 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
4813 | if (!infoattr) | |
4814 | goto nla_put_failure; | |
4815 | ||
4816 | if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
4817 | survey->channel->center_freq)) | |
4818 | goto nla_put_failure; | |
4819 | ||
4820 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
4821 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
4822 | goto nla_put_failure; | |
4823 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
4824 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
4825 | goto nla_put_failure; | |
4826 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) && | |
4827 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
4828 | survey->channel_time)) | |
4829 | goto nla_put_failure; | |
4830 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) && | |
4831 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
4832 | survey->channel_time_busy)) | |
4833 | goto nla_put_failure; | |
4834 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) && | |
4835 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
4836 | survey->channel_time_ext_busy)) | |
4837 | goto nla_put_failure; | |
4838 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) && | |
4839 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
4840 | survey->channel_time_rx)) | |
4841 | goto nla_put_failure; | |
4842 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) && | |
4843 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
4844 | survey->channel_time_tx)) | |
4845 | goto nla_put_failure; | |
4846 | ||
4847 | nla_nest_end(msg, infoattr); | |
4848 | ||
4849 | return genlmsg_end(msg, hdr); | |
4850 | ||
4851 | nla_put_failure: | |
4852 | genlmsg_cancel(msg, hdr); | |
4853 | return -EMSGSIZE; | |
4854 | } | |
4855 | ||
4856 | static int nl80211_dump_survey(struct sk_buff *skb, | |
4857 | struct netlink_callback *cb) | |
4858 | { | |
4859 | struct survey_info survey; | |
4860 | struct cfg80211_registered_device *dev; | |
4861 | struct net_device *netdev; | |
4862 | int survey_idx = cb->args[1]; | |
4863 | int res; | |
4864 | ||
4865 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); | |
4866 | if (res) | |
4867 | return res; | |
4868 | ||
4869 | if (!dev->ops->dump_survey) { | |
4870 | res = -EOPNOTSUPP; | |
4871 | goto out_err; | |
4872 | } | |
4873 | ||
4874 | while (1) { | |
4875 | struct ieee80211_channel *chan; | |
4876 | ||
4877 | res = rdev_dump_survey(dev, netdev, survey_idx, &survey); | |
4878 | if (res == -ENOENT) | |
4879 | break; | |
4880 | if (res) | |
4881 | goto out_err; | |
4882 | ||
4883 | /* Survey without a channel doesn't make sense */ | |
4884 | if (!survey.channel) { | |
4885 | res = -EINVAL; | |
4886 | goto out; | |
4887 | } | |
4888 | ||
4889 | chan = ieee80211_get_channel(&dev->wiphy, | |
4890 | survey.channel->center_freq); | |
4891 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { | |
4892 | survey_idx++; | |
4893 | continue; | |
4894 | } | |
4895 | ||
4896 | if (nl80211_send_survey(skb, | |
4897 | NETLINK_CB(cb->skb).portid, | |
4898 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4899 | netdev, | |
4900 | &survey) < 0) | |
4901 | goto out; | |
4902 | survey_idx++; | |
4903 | } | |
4904 | ||
4905 | out: | |
4906 | cb->args[1] = survey_idx; | |
4907 | res = skb->len; | |
4908 | out_err: | |
4909 | nl80211_finish_netdev_dump(dev); | |
4910 | return res; | |
4911 | } | |
4912 | ||
4913 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
4914 | { | |
4915 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
4916 | NL80211_WPA_VERSION_2)); | |
4917 | } | |
4918 | ||
4919 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) | |
4920 | { | |
4921 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4922 | struct net_device *dev = info->user_ptr[1]; | |
4923 | struct ieee80211_channel *chan; | |
4924 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; | |
4925 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
4926 | enum nl80211_auth_type auth_type; | |
4927 | struct key_parse key; | |
4928 | bool local_state_change; | |
4929 | ||
4930 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4931 | return -EINVAL; | |
4932 | ||
4933 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4934 | return -EINVAL; | |
4935 | ||
4936 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) | |
4937 | return -EINVAL; | |
4938 | ||
4939 | if (!info->attrs[NL80211_ATTR_SSID]) | |
4940 | return -EINVAL; | |
4941 | ||
4942 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4943 | return -EINVAL; | |
4944 | ||
4945 | err = nl80211_parse_key(info, &key); | |
4946 | if (err) | |
4947 | return err; | |
4948 | ||
4949 | if (key.idx >= 0) { | |
4950 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) | |
4951 | return -EINVAL; | |
4952 | if (!key.p.key || !key.p.key_len) | |
4953 | return -EINVAL; | |
4954 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
4955 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
4956 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
4957 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
4958 | return -EINVAL; | |
4959 | if (key.idx > 4) | |
4960 | return -EINVAL; | |
4961 | } else { | |
4962 | key.p.key_len = 0; | |
4963 | key.p.key = NULL; | |
4964 | } | |
4965 | ||
4966 | if (key.idx >= 0) { | |
4967 | int i; | |
4968 | bool ok = false; | |
4969 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
4970 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
4971 | ok = true; | |
4972 | break; | |
4973 | } | |
4974 | } | |
4975 | if (!ok) | |
4976 | return -EINVAL; | |
4977 | } | |
4978 | ||
4979 | if (!rdev->ops->auth) | |
4980 | return -EOPNOTSUPP; | |
4981 | ||
4982 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
4983 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
4984 | return -EOPNOTSUPP; | |
4985 | ||
4986 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4987 | chan = ieee80211_get_channel(&rdev->wiphy, | |
4988 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4989 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) | |
4990 | return -EINVAL; | |
4991 | ||
4992 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4993 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4994 | ||
4995 | if (info->attrs[NL80211_ATTR_IE]) { | |
4996 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4997 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4998 | } | |
4999 | ||
5000 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
5001 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) | |
5002 | return -EINVAL; | |
5003 | ||
5004 | if (auth_type == NL80211_AUTHTYPE_SAE && | |
5005 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
5006 | return -EINVAL; | |
5007 | ||
5008 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
5009 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
5010 | return -EINVAL; | |
5011 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5012 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5013 | /* need to include at least Auth Transaction and Status Code */ | |
5014 | if (sae_data_len < 4) | |
5015 | return -EINVAL; | |
5016 | } | |
5017 | ||
5018 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; | |
5019 | ||
5020 | /* | |
5021 | * Since we no longer track auth state, ignore | |
5022 | * requests to only change local state. | |
5023 | */ | |
5024 | if (local_state_change) | |
5025 | return 0; | |
5026 | ||
5027 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, | |
5028 | ssid, ssid_len, ie, ie_len, | |
5029 | key.p.key, key.p.key_len, key.idx, | |
5030 | sae_data, sae_data_len); | |
5031 | } | |
5032 | ||
5033 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, | |
5034 | struct genl_info *info, | |
5035 | struct cfg80211_crypto_settings *settings, | |
5036 | int cipher_limit) | |
5037 | { | |
5038 | memset(settings, 0, sizeof(*settings)); | |
5039 | ||
5040 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; | |
5041 | ||
5042 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { | |
5043 | u16 proto; | |
5044 | proto = nla_get_u16( | |
5045 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
5046 | settings->control_port_ethertype = cpu_to_be16(proto); | |
5047 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
5048 | proto != ETH_P_PAE) | |
5049 | return -EINVAL; | |
5050 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
5051 | settings->control_port_no_encrypt = true; | |
5052 | } else | |
5053 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
5054 | ||
5055 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { | |
5056 | void *data; | |
5057 | int len, i; | |
5058 | ||
5059 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5060 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5061 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
5062 | ||
5063 | if (len % sizeof(u32)) | |
5064 | return -EINVAL; | |
5065 | ||
5066 | if (settings->n_ciphers_pairwise > cipher_limit) | |
5067 | return -EINVAL; | |
5068 | ||
5069 | memcpy(settings->ciphers_pairwise, data, len); | |
5070 | ||
5071 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
5072 | if (!cfg80211_supported_cipher_suite( | |
5073 | &rdev->wiphy, | |
5074 | settings->ciphers_pairwise[i])) | |
5075 | return -EINVAL; | |
5076 | } | |
5077 | ||
5078 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
5079 | settings->cipher_group = | |
5080 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
5081 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, | |
5082 | settings->cipher_group)) | |
5083 | return -EINVAL; | |
5084 | } | |
5085 | ||
5086 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
5087 | settings->wpa_versions = | |
5088 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
5089 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
5090 | return -EINVAL; | |
5091 | } | |
5092 | ||
5093 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
5094 | void *data; | |
5095 | int len; | |
5096 | ||
5097 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5098 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5099 | settings->n_akm_suites = len / sizeof(u32); | |
5100 | ||
5101 | if (len % sizeof(u32)) | |
5102 | return -EINVAL; | |
5103 | ||
5104 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) | |
5105 | return -EINVAL; | |
5106 | ||
5107 | memcpy(settings->akm_suites, data, len); | |
5108 | } | |
5109 | ||
5110 | return 0; | |
5111 | } | |
5112 | ||
5113 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) | |
5114 | { | |
5115 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5116 | struct net_device *dev = info->user_ptr[1]; | |
5117 | struct cfg80211_crypto_settings crypto; | |
5118 | struct ieee80211_channel *chan; | |
5119 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; | |
5120 | int err, ssid_len, ie_len = 0; | |
5121 | bool use_mfp = false; | |
5122 | u32 flags = 0; | |
5123 | struct ieee80211_ht_cap *ht_capa = NULL; | |
5124 | struct ieee80211_ht_cap *ht_capa_mask = NULL; | |
5125 | ||
5126 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5127 | return -EINVAL; | |
5128 | ||
5129 | if (!info->attrs[NL80211_ATTR_MAC] || | |
5130 | !info->attrs[NL80211_ATTR_SSID] || | |
5131 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
5132 | return -EINVAL; | |
5133 | ||
5134 | if (!rdev->ops->assoc) | |
5135 | return -EOPNOTSUPP; | |
5136 | ||
5137 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5138 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
5139 | return -EOPNOTSUPP; | |
5140 | ||
5141 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5142 | ||
5143 | chan = ieee80211_get_channel(&rdev->wiphy, | |
5144 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
5145 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) | |
5146 | return -EINVAL; | |
5147 | ||
5148 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
5149 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5150 | ||
5151 | if (info->attrs[NL80211_ATTR_IE]) { | |
5152 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5153 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5154 | } | |
5155 | ||
5156 | if (info->attrs[NL80211_ATTR_USE_MFP]) { | |
5157 | enum nl80211_mfp mfp = | |
5158 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
5159 | if (mfp == NL80211_MFP_REQUIRED) | |
5160 | use_mfp = true; | |
5161 | else if (mfp != NL80211_MFP_NO) | |
5162 | return -EINVAL; | |
5163 | } | |
5164 | ||
5165 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) | |
5166 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
5167 | ||
5168 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) | |
5169 | flags |= ASSOC_REQ_DISABLE_HT; | |
5170 | ||
5171 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5172 | ht_capa_mask = | |
5173 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]); | |
5174 | ||
5175 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
5176 | if (!ht_capa_mask) | |
5177 | return -EINVAL; | |
5178 | ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5179 | } | |
5180 | ||
5181 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); | |
5182 | if (!err) | |
5183 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, | |
5184 | ssid, ssid_len, ie, ie_len, use_mfp, | |
5185 | &crypto, flags, ht_capa, | |
5186 | ht_capa_mask); | |
5187 | ||
5188 | return err; | |
5189 | } | |
5190 | ||
5191 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
5192 | { | |
5193 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5194 | struct net_device *dev = info->user_ptr[1]; | |
5195 | const u8 *ie = NULL, *bssid; | |
5196 | int ie_len = 0; | |
5197 | u16 reason_code; | |
5198 | bool local_state_change; | |
5199 | ||
5200 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5201 | return -EINVAL; | |
5202 | ||
5203 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5204 | return -EINVAL; | |
5205 | ||
5206 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5207 | return -EINVAL; | |
5208 | ||
5209 | if (!rdev->ops->deauth) | |
5210 | return -EOPNOTSUPP; | |
5211 | ||
5212 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5213 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
5214 | return -EOPNOTSUPP; | |
5215 | ||
5216 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5217 | ||
5218 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
5219 | if (reason_code == 0) { | |
5220 | /* Reason Code 0 is reserved */ | |
5221 | return -EINVAL; | |
5222 | } | |
5223 | ||
5224 | if (info->attrs[NL80211_ATTR_IE]) { | |
5225 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5226 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5227 | } | |
5228 | ||
5229 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; | |
5230 | ||
5231 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
5232 | local_state_change); | |
5233 | } | |
5234 | ||
5235 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
5236 | { | |
5237 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5238 | struct net_device *dev = info->user_ptr[1]; | |
5239 | const u8 *ie = NULL, *bssid; | |
5240 | int ie_len = 0; | |
5241 | u16 reason_code; | |
5242 | bool local_state_change; | |
5243 | ||
5244 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5245 | return -EINVAL; | |
5246 | ||
5247 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5248 | return -EINVAL; | |
5249 | ||
5250 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5251 | return -EINVAL; | |
5252 | ||
5253 | if (!rdev->ops->disassoc) | |
5254 | return -EOPNOTSUPP; | |
5255 | ||
5256 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5257 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
5258 | return -EOPNOTSUPP; | |
5259 | ||
5260 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5261 | ||
5262 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
5263 | if (reason_code == 0) { | |
5264 | /* Reason Code 0 is reserved */ | |
5265 | return -EINVAL; | |
5266 | } | |
5267 | ||
5268 | if (info->attrs[NL80211_ATTR_IE]) { | |
5269 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5270 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5271 | } | |
5272 | ||
5273 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; | |
5274 | ||
5275 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
5276 | local_state_change); | |
5277 | } | |
5278 | ||
5279 | static bool | |
5280 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
5281 | int mcast_rate[IEEE80211_NUM_BANDS], | |
5282 | int rateval) | |
5283 | { | |
5284 | struct wiphy *wiphy = &rdev->wiphy; | |
5285 | bool found = false; | |
5286 | int band, i; | |
5287 | ||
5288 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
5289 | struct ieee80211_supported_band *sband; | |
5290 | ||
5291 | sband = wiphy->bands[band]; | |
5292 | if (!sband) | |
5293 | continue; | |
5294 | ||
5295 | for (i = 0; i < sband->n_bitrates; i++) { | |
5296 | if (sband->bitrates[i].bitrate == rateval) { | |
5297 | mcast_rate[band] = i + 1; | |
5298 | found = true; | |
5299 | break; | |
5300 | } | |
5301 | } | |
5302 | } | |
5303 | ||
5304 | return found; | |
5305 | } | |
5306 | ||
5307 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) | |
5308 | { | |
5309 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5310 | struct net_device *dev = info->user_ptr[1]; | |
5311 | struct cfg80211_ibss_params ibss; | |
5312 | struct wiphy *wiphy; | |
5313 | struct cfg80211_cached_keys *connkeys = NULL; | |
5314 | int err; | |
5315 | ||
5316 | memset(&ibss, 0, sizeof(ibss)); | |
5317 | ||
5318 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5319 | return -EINVAL; | |
5320 | ||
5321 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5322 | !info->attrs[NL80211_ATTR_SSID] || | |
5323 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5324 | return -EINVAL; | |
5325 | ||
5326 | ibss.beacon_interval = 100; | |
5327 | ||
5328 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
5329 | ibss.beacon_interval = | |
5330 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
5331 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
5332 | return -EINVAL; | |
5333 | } | |
5334 | ||
5335 | if (!rdev->ops->join_ibss) | |
5336 | return -EOPNOTSUPP; | |
5337 | ||
5338 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) | |
5339 | return -EOPNOTSUPP; | |
5340 | ||
5341 | wiphy = &rdev->wiphy; | |
5342 | ||
5343 | if (info->attrs[NL80211_ATTR_MAC]) { | |
5344 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5345 | ||
5346 | if (!is_valid_ether_addr(ibss.bssid)) | |
5347 | return -EINVAL; | |
5348 | } | |
5349 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
5350 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5351 | ||
5352 | if (info->attrs[NL80211_ATTR_IE]) { | |
5353 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5354 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5355 | } | |
5356 | ||
5357 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
5358 | enum nl80211_channel_type channel_type; | |
5359 | ||
5360 | if (!nl80211_valid_channel_type(info, &channel_type)) | |
5361 | return -EINVAL; | |
5362 | ||
5363 | if (channel_type != NL80211_CHAN_NO_HT && | |
5364 | !(wiphy->features & NL80211_FEATURE_HT_IBSS)) | |
5365 | return -EINVAL; | |
5366 | ||
5367 | ibss.channel_type = channel_type; | |
5368 | } else { | |
5369 | ibss.channel_type = NL80211_CHAN_NO_HT; | |
5370 | } | |
5371 | ||
5372 | ibss.channel = rdev_freq_to_chan(rdev, | |
5373 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
5374 | ibss.channel_type); | |
5375 | if (!ibss.channel || | |
5376 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
5377 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) | |
5378 | return -EINVAL; | |
5379 | ||
5380 | /* Both channels should be able to initiate communication */ | |
5381 | if ((ibss.channel_type == NL80211_CHAN_HT40PLUS || | |
5382 | ibss.channel_type == NL80211_CHAN_HT40MINUS) && | |
5383 | !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel, | |
5384 | ibss.channel_type)) | |
5385 | return -EINVAL; | |
5386 | ||
5387 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
5388 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
5389 | ||
5390 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { | |
5391 | u8 *rates = | |
5392 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5393 | int n_rates = | |
5394 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5395 | struct ieee80211_supported_band *sband = | |
5396 | wiphy->bands[ibss.channel->band]; | |
5397 | ||
5398 | err = ieee80211_get_ratemask(sband, rates, n_rates, | |
5399 | &ibss.basic_rates); | |
5400 | if (err) | |
5401 | return err; | |
5402 | } | |
5403 | ||
5404 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
5405 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
5406 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
5407 | return -EINVAL; | |
5408 | ||
5409 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
5410 | bool no_ht = false; | |
5411 | ||
5412 | connkeys = nl80211_parse_connkeys(rdev, | |
5413 | info->attrs[NL80211_ATTR_KEYS], | |
5414 | &no_ht); | |
5415 | if (IS_ERR(connkeys)) | |
5416 | return PTR_ERR(connkeys); | |
5417 | ||
5418 | if ((ibss.channel_type != NL80211_CHAN_NO_HT) && no_ht) { | |
5419 | kfree(connkeys); | |
5420 | return -EINVAL; | |
5421 | } | |
5422 | } | |
5423 | ||
5424 | ibss.control_port = | |
5425 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
5426 | ||
5427 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); | |
5428 | if (err) | |
5429 | kfree(connkeys); | |
5430 | return err; | |
5431 | } | |
5432 | ||
5433 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
5434 | { | |
5435 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5436 | struct net_device *dev = info->user_ptr[1]; | |
5437 | ||
5438 | if (!rdev->ops->leave_ibss) | |
5439 | return -EOPNOTSUPP; | |
5440 | ||
5441 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) | |
5442 | return -EOPNOTSUPP; | |
5443 | ||
5444 | return cfg80211_leave_ibss(rdev, dev, false); | |
5445 | } | |
5446 | ||
5447 | #ifdef CONFIG_NL80211_TESTMODE | |
5448 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
5449 | .name = "testmode", | |
5450 | }; | |
5451 | ||
5452 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
5453 | { | |
5454 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5455 | int err; | |
5456 | ||
5457 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
5458 | return -EINVAL; | |
5459 | ||
5460 | err = -EOPNOTSUPP; | |
5461 | if (rdev->ops->testmode_cmd) { | |
5462 | rdev->testmode_info = info; | |
5463 | err = rdev_testmode_cmd(rdev, | |
5464 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
5465 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
5466 | rdev->testmode_info = NULL; | |
5467 | } | |
5468 | ||
5469 | return err; | |
5470 | } | |
5471 | ||
5472 | static int nl80211_testmode_dump(struct sk_buff *skb, | |
5473 | struct netlink_callback *cb) | |
5474 | { | |
5475 | struct cfg80211_registered_device *rdev; | |
5476 | int err; | |
5477 | long phy_idx; | |
5478 | void *data = NULL; | |
5479 | int data_len = 0; | |
5480 | ||
5481 | if (cb->args[0]) { | |
5482 | /* | |
5483 | * 0 is a valid index, but not valid for args[0], | |
5484 | * so we need to offset by 1. | |
5485 | */ | |
5486 | phy_idx = cb->args[0] - 1; | |
5487 | } else { | |
5488 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
5489 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
5490 | nl80211_policy); | |
5491 | if (err) | |
5492 | return err; | |
5493 | ||
5494 | mutex_lock(&cfg80211_mutex); | |
5495 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), | |
5496 | nl80211_fam.attrbuf); | |
5497 | if (IS_ERR(rdev)) { | |
5498 | mutex_unlock(&cfg80211_mutex); | |
5499 | return PTR_ERR(rdev); | |
5500 | } | |
5501 | phy_idx = rdev->wiphy_idx; | |
5502 | rdev = NULL; | |
5503 | mutex_unlock(&cfg80211_mutex); | |
5504 | ||
5505 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) | |
5506 | cb->args[1] = | |
5507 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
5508 | } | |
5509 | ||
5510 | if (cb->args[1]) { | |
5511 | data = nla_data((void *)cb->args[1]); | |
5512 | data_len = nla_len((void *)cb->args[1]); | |
5513 | } | |
5514 | ||
5515 | mutex_lock(&cfg80211_mutex); | |
5516 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); | |
5517 | if (!rdev) { | |
5518 | mutex_unlock(&cfg80211_mutex); | |
5519 | return -ENOENT; | |
5520 | } | |
5521 | cfg80211_lock_rdev(rdev); | |
5522 | mutex_unlock(&cfg80211_mutex); | |
5523 | ||
5524 | if (!rdev->ops->testmode_dump) { | |
5525 | err = -EOPNOTSUPP; | |
5526 | goto out_err; | |
5527 | } | |
5528 | ||
5529 | while (1) { | |
5530 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, | |
5531 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
5532 | NL80211_CMD_TESTMODE); | |
5533 | struct nlattr *tmdata; | |
5534 | ||
5535 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { | |
5536 | genlmsg_cancel(skb, hdr); | |
5537 | break; | |
5538 | } | |
5539 | ||
5540 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
5541 | if (!tmdata) { | |
5542 | genlmsg_cancel(skb, hdr); | |
5543 | break; | |
5544 | } | |
5545 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); | |
5546 | nla_nest_end(skb, tmdata); | |
5547 | ||
5548 | if (err == -ENOBUFS || err == -ENOENT) { | |
5549 | genlmsg_cancel(skb, hdr); | |
5550 | break; | |
5551 | } else if (err) { | |
5552 | genlmsg_cancel(skb, hdr); | |
5553 | goto out_err; | |
5554 | } | |
5555 | ||
5556 | genlmsg_end(skb, hdr); | |
5557 | } | |
5558 | ||
5559 | err = skb->len; | |
5560 | /* see above */ | |
5561 | cb->args[0] = phy_idx + 1; | |
5562 | out_err: | |
5563 | cfg80211_unlock_rdev(rdev); | |
5564 | return err; | |
5565 | } | |
5566 | ||
5567 | static struct sk_buff * | |
5568 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
5569 | int approxlen, u32 portid, u32 seq, gfp_t gfp) | |
5570 | { | |
5571 | struct sk_buff *skb; | |
5572 | void *hdr; | |
5573 | struct nlattr *data; | |
5574 | ||
5575 | skb = nlmsg_new(approxlen + 100, gfp); | |
5576 | if (!skb) | |
5577 | return NULL; | |
5578 | ||
5579 | hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE); | |
5580 | if (!hdr) { | |
5581 | kfree_skb(skb); | |
5582 | return NULL; | |
5583 | } | |
5584 | ||
5585 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
5586 | goto nla_put_failure; | |
5587 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
5588 | ||
5589 | ((void **)skb->cb)[0] = rdev; | |
5590 | ((void **)skb->cb)[1] = hdr; | |
5591 | ((void **)skb->cb)[2] = data; | |
5592 | ||
5593 | return skb; | |
5594 | ||
5595 | nla_put_failure: | |
5596 | kfree_skb(skb); | |
5597 | return NULL; | |
5598 | } | |
5599 | ||
5600 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
5601 | int approxlen) | |
5602 | { | |
5603 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5604 | ||
5605 | if (WARN_ON(!rdev->testmode_info)) | |
5606 | return NULL; | |
5607 | ||
5608 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
5609 | rdev->testmode_info->snd_portid, | |
5610 | rdev->testmode_info->snd_seq, | |
5611 | GFP_KERNEL); | |
5612 | } | |
5613 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
5614 | ||
5615 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
5616 | { | |
5617 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
5618 | void *hdr = ((void **)skb->cb)[1]; | |
5619 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5620 | ||
5621 | if (WARN_ON(!rdev->testmode_info)) { | |
5622 | kfree_skb(skb); | |
5623 | return -EINVAL; | |
5624 | } | |
5625 | ||
5626 | nla_nest_end(skb, data); | |
5627 | genlmsg_end(skb, hdr); | |
5628 | return genlmsg_reply(skb, rdev->testmode_info); | |
5629 | } | |
5630 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
5631 | ||
5632 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
5633 | int approxlen, gfp_t gfp) | |
5634 | { | |
5635 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5636 | ||
5637 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
5638 | } | |
5639 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
5640 | ||
5641 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
5642 | { | |
5643 | void *hdr = ((void **)skb->cb)[1]; | |
5644 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5645 | ||
5646 | nla_nest_end(skb, data); | |
5647 | genlmsg_end(skb, hdr); | |
5648 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
5649 | } | |
5650 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
5651 | #endif | |
5652 | ||
5653 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) | |
5654 | { | |
5655 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5656 | struct net_device *dev = info->user_ptr[1]; | |
5657 | struct cfg80211_connect_params connect; | |
5658 | struct wiphy *wiphy; | |
5659 | struct cfg80211_cached_keys *connkeys = NULL; | |
5660 | int err; | |
5661 | ||
5662 | memset(&connect, 0, sizeof(connect)); | |
5663 | ||
5664 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5665 | return -EINVAL; | |
5666 | ||
5667 | if (!info->attrs[NL80211_ATTR_SSID] || | |
5668 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5669 | return -EINVAL; | |
5670 | ||
5671 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
5672 | connect.auth_type = | |
5673 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
5674 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, | |
5675 | NL80211_CMD_CONNECT)) | |
5676 | return -EINVAL; | |
5677 | } else | |
5678 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
5679 | ||
5680 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
5681 | ||
5682 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, | |
5683 | NL80211_MAX_NR_CIPHER_SUITES); | |
5684 | if (err) | |
5685 | return err; | |
5686 | ||
5687 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5688 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
5689 | return -EOPNOTSUPP; | |
5690 | ||
5691 | wiphy = &rdev->wiphy; | |
5692 | ||
5693 | connect.bg_scan_period = -1; | |
5694 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
5695 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
5696 | connect.bg_scan_period = | |
5697 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
5698 | } | |
5699 | ||
5700 | if (info->attrs[NL80211_ATTR_MAC]) | |
5701 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5702 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
5703 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5704 | ||
5705 | if (info->attrs[NL80211_ATTR_IE]) { | |
5706 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5707 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5708 | } | |
5709 | ||
5710 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
5711 | connect.channel = | |
5712 | ieee80211_get_channel(wiphy, | |
5713 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
5714 | if (!connect.channel || | |
5715 | connect.channel->flags & IEEE80211_CHAN_DISABLED) | |
5716 | return -EINVAL; | |
5717 | } | |
5718 | ||
5719 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
5720 | connkeys = nl80211_parse_connkeys(rdev, | |
5721 | info->attrs[NL80211_ATTR_KEYS], NULL); | |
5722 | if (IS_ERR(connkeys)) | |
5723 | return PTR_ERR(connkeys); | |
5724 | } | |
5725 | ||
5726 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) | |
5727 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
5728 | ||
5729 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5730 | memcpy(&connect.ht_capa_mask, | |
5731 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
5732 | sizeof(connect.ht_capa_mask)); | |
5733 | ||
5734 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
5735 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { | |
5736 | kfree(connkeys); | |
5737 | return -EINVAL; | |
5738 | } | |
5739 | memcpy(&connect.ht_capa, | |
5740 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
5741 | sizeof(connect.ht_capa)); | |
5742 | } | |
5743 | ||
5744 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
5745 | if (err) | |
5746 | kfree(connkeys); | |
5747 | return err; | |
5748 | } | |
5749 | ||
5750 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
5751 | { | |
5752 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5753 | struct net_device *dev = info->user_ptr[1]; | |
5754 | u16 reason; | |
5755 | ||
5756 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5757 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
5758 | else | |
5759 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
5760 | ||
5761 | if (reason == 0) | |
5762 | return -EINVAL; | |
5763 | ||
5764 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5765 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
5766 | return -EOPNOTSUPP; | |
5767 | ||
5768 | return cfg80211_disconnect(rdev, dev, reason, true); | |
5769 | } | |
5770 | ||
5771 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) | |
5772 | { | |
5773 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5774 | struct net *net; | |
5775 | int err; | |
5776 | u32 pid; | |
5777 | ||
5778 | if (!info->attrs[NL80211_ATTR_PID]) | |
5779 | return -EINVAL; | |
5780 | ||
5781 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
5782 | ||
5783 | net = get_net_ns_by_pid(pid); | |
5784 | if (IS_ERR(net)) | |
5785 | return PTR_ERR(net); | |
5786 | ||
5787 | err = 0; | |
5788 | ||
5789 | /* check if anything to do */ | |
5790 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) | |
5791 | err = cfg80211_switch_netns(rdev, net); | |
5792 | ||
5793 | put_net(net); | |
5794 | return err; | |
5795 | } | |
5796 | ||
5797 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) | |
5798 | { | |
5799 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5800 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, | |
5801 | struct cfg80211_pmksa *pmksa) = NULL; | |
5802 | struct net_device *dev = info->user_ptr[1]; | |
5803 | struct cfg80211_pmksa pmksa; | |
5804 | ||
5805 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
5806 | ||
5807 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5808 | return -EINVAL; | |
5809 | ||
5810 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
5811 | return -EINVAL; | |
5812 | ||
5813 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); | |
5814 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5815 | ||
5816 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5817 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
5818 | return -EOPNOTSUPP; | |
5819 | ||
5820 | switch (info->genlhdr->cmd) { | |
5821 | case NL80211_CMD_SET_PMKSA: | |
5822 | rdev_ops = rdev->ops->set_pmksa; | |
5823 | break; | |
5824 | case NL80211_CMD_DEL_PMKSA: | |
5825 | rdev_ops = rdev->ops->del_pmksa; | |
5826 | break; | |
5827 | default: | |
5828 | WARN_ON(1); | |
5829 | break; | |
5830 | } | |
5831 | ||
5832 | if (!rdev_ops) | |
5833 | return -EOPNOTSUPP; | |
5834 | ||
5835 | return rdev_ops(&rdev->wiphy, dev, &pmksa); | |
5836 | } | |
5837 | ||
5838 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
5839 | { | |
5840 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5841 | struct net_device *dev = info->user_ptr[1]; | |
5842 | ||
5843 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5844 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
5845 | return -EOPNOTSUPP; | |
5846 | ||
5847 | if (!rdev->ops->flush_pmksa) | |
5848 | return -EOPNOTSUPP; | |
5849 | ||
5850 | return rdev_flush_pmksa(rdev, dev); | |
5851 | } | |
5852 | ||
5853 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) | |
5854 | { | |
5855 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5856 | struct net_device *dev = info->user_ptr[1]; | |
5857 | u8 action_code, dialog_token; | |
5858 | u16 status_code; | |
5859 | u8 *peer; | |
5860 | ||
5861 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5862 | !rdev->ops->tdls_mgmt) | |
5863 | return -EOPNOTSUPP; | |
5864 | ||
5865 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
5866 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
5867 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
5868 | !info->attrs[NL80211_ATTR_IE] || | |
5869 | !info->attrs[NL80211_ATTR_MAC]) | |
5870 | return -EINVAL; | |
5871 | ||
5872 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5873 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
5874 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
5875 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
5876 | ||
5877 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, | |
5878 | dialog_token, status_code, | |
5879 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5880 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
5881 | } | |
5882 | ||
5883 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
5884 | { | |
5885 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5886 | struct net_device *dev = info->user_ptr[1]; | |
5887 | enum nl80211_tdls_operation operation; | |
5888 | u8 *peer; | |
5889 | ||
5890 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5891 | !rdev->ops->tdls_oper) | |
5892 | return -EOPNOTSUPP; | |
5893 | ||
5894 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
5895 | !info->attrs[NL80211_ATTR_MAC]) | |
5896 | return -EINVAL; | |
5897 | ||
5898 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
5899 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5900 | ||
5901 | return rdev_tdls_oper(rdev, dev, peer, operation); | |
5902 | } | |
5903 | ||
5904 | static int nl80211_remain_on_channel(struct sk_buff *skb, | |
5905 | struct genl_info *info) | |
5906 | { | |
5907 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5908 | struct wireless_dev *wdev = info->user_ptr[1]; | |
5909 | struct ieee80211_channel *chan; | |
5910 | struct sk_buff *msg; | |
5911 | void *hdr; | |
5912 | u64 cookie; | |
5913 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
5914 | u32 freq, duration; | |
5915 | int err; | |
5916 | ||
5917 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5918 | !info->attrs[NL80211_ATTR_DURATION]) | |
5919 | return -EINVAL; | |
5920 | ||
5921 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
5922 | ||
5923 | if (!rdev->ops->remain_on_channel || | |
5924 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
5925 | return -EOPNOTSUPP; | |
5926 | ||
5927 | /* | |
5928 | * We should be on that channel for at least a minimum amount of | |
5929 | * time (10ms) but no longer than the driver supports. | |
5930 | */ | |
5931 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
5932 | duration > rdev->wiphy.max_remain_on_channel_duration) | |
5933 | return -EINVAL; | |
5934 | ||
5935 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
5936 | !nl80211_valid_channel_type(info, &channel_type)) | |
5937 | return -EINVAL; | |
5938 | ||
5939 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
5940 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
5941 | if (chan == NULL) | |
5942 | return -EINVAL; | |
5943 | ||
5944 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5945 | if (!msg) | |
5946 | return -ENOMEM; | |
5947 | ||
5948 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
5949 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
5950 | ||
5951 | if (IS_ERR(hdr)) { | |
5952 | err = PTR_ERR(hdr); | |
5953 | goto free_msg; | |
5954 | } | |
5955 | ||
5956 | err = rdev_remain_on_channel(rdev, wdev, chan, channel_type, duration, | |
5957 | &cookie); | |
5958 | ||
5959 | if (err) | |
5960 | goto free_msg; | |
5961 | ||
5962 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
5963 | goto nla_put_failure; | |
5964 | ||
5965 | genlmsg_end(msg, hdr); | |
5966 | ||
5967 | return genlmsg_reply(msg, info); | |
5968 | ||
5969 | nla_put_failure: | |
5970 | err = -ENOBUFS; | |
5971 | free_msg: | |
5972 | nlmsg_free(msg); | |
5973 | return err; | |
5974 | } | |
5975 | ||
5976 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
5977 | struct genl_info *info) | |
5978 | { | |
5979 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5980 | struct wireless_dev *wdev = info->user_ptr[1]; | |
5981 | u64 cookie; | |
5982 | ||
5983 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
5984 | return -EINVAL; | |
5985 | ||
5986 | if (!rdev->ops->cancel_remain_on_channel) | |
5987 | return -EOPNOTSUPP; | |
5988 | ||
5989 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
5990 | ||
5991 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); | |
5992 | } | |
5993 | ||
5994 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, | |
5995 | u8 *rates, u8 rates_len) | |
5996 | { | |
5997 | u8 i; | |
5998 | u32 mask = 0; | |
5999 | ||
6000 | for (i = 0; i < rates_len; i++) { | |
6001 | int rate = (rates[i] & 0x7f) * 5; | |
6002 | int ridx; | |
6003 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
6004 | struct ieee80211_rate *srate = | |
6005 | &sband->bitrates[ridx]; | |
6006 | if (rate == srate->bitrate) { | |
6007 | mask |= 1 << ridx; | |
6008 | break; | |
6009 | } | |
6010 | } | |
6011 | if (ridx == sband->n_bitrates) | |
6012 | return 0; /* rate not found */ | |
6013 | } | |
6014 | ||
6015 | return mask; | |
6016 | } | |
6017 | ||
6018 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, | |
6019 | u8 *rates, u8 rates_len, | |
6020 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
6021 | { | |
6022 | u8 i; | |
6023 | ||
6024 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
6025 | ||
6026 | for (i = 0; i < rates_len; i++) { | |
6027 | int ridx, rbit; | |
6028 | ||
6029 | ridx = rates[i] / 8; | |
6030 | rbit = BIT(rates[i] % 8); | |
6031 | ||
6032 | /* check validity */ | |
6033 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) | |
6034 | return false; | |
6035 | ||
6036 | /* check availability */ | |
6037 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
6038 | mcs[ridx] |= rbit; | |
6039 | else | |
6040 | return false; | |
6041 | } | |
6042 | ||
6043 | return true; | |
6044 | } | |
6045 | ||
6046 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { | |
6047 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, | |
6048 | .len = NL80211_MAX_SUPP_RATES }, | |
6049 | [NL80211_TXRATE_MCS] = { .type = NLA_BINARY, | |
6050 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
6051 | }; | |
6052 | ||
6053 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
6054 | struct genl_info *info) | |
6055 | { | |
6056 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
6057 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6058 | struct cfg80211_bitrate_mask mask; | |
6059 | int rem, i; | |
6060 | struct net_device *dev = info->user_ptr[1]; | |
6061 | struct nlattr *tx_rates; | |
6062 | struct ieee80211_supported_band *sband; | |
6063 | ||
6064 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
6065 | return -EINVAL; | |
6066 | ||
6067 | if (!rdev->ops->set_bitrate_mask) | |
6068 | return -EOPNOTSUPP; | |
6069 | ||
6070 | memset(&mask, 0, sizeof(mask)); | |
6071 | /* Default to all rates enabled */ | |
6072 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
6073 | sband = rdev->wiphy.bands[i]; | |
6074 | mask.control[i].legacy = | |
6075 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
6076 | if (sband) | |
6077 | memcpy(mask.control[i].mcs, | |
6078 | sband->ht_cap.mcs.rx_mask, | |
6079 | sizeof(mask.control[i].mcs)); | |
6080 | else | |
6081 | memset(mask.control[i].mcs, 0, | |
6082 | sizeof(mask.control[i].mcs)); | |
6083 | } | |
6084 | ||
6085 | /* | |
6086 | * The nested attribute uses enum nl80211_band as the index. This maps | |
6087 | * directly to the enum ieee80211_band values used in cfg80211. | |
6088 | */ | |
6089 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); | |
6090 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
6091 | { | |
6092 | enum ieee80211_band band = nla_type(tx_rates); | |
6093 | if (band < 0 || band >= IEEE80211_NUM_BANDS) | |
6094 | return -EINVAL; | |
6095 | sband = rdev->wiphy.bands[band]; | |
6096 | if (sband == NULL) | |
6097 | return -EINVAL; | |
6098 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), | |
6099 | nla_len(tx_rates), nl80211_txattr_policy); | |
6100 | if (tb[NL80211_TXRATE_LEGACY]) { | |
6101 | mask.control[band].legacy = rateset_to_mask( | |
6102 | sband, | |
6103 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
6104 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
6105 | if ((mask.control[band].legacy == 0) && | |
6106 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
6107 | return -EINVAL; | |
6108 | } | |
6109 | if (tb[NL80211_TXRATE_MCS]) { | |
6110 | if (!ht_rateset_to_mask( | |
6111 | sband, | |
6112 | nla_data(tb[NL80211_TXRATE_MCS]), | |
6113 | nla_len(tb[NL80211_TXRATE_MCS]), | |
6114 | mask.control[band].mcs)) | |
6115 | return -EINVAL; | |
6116 | } | |
6117 | ||
6118 | if (mask.control[band].legacy == 0) { | |
6119 | /* don't allow empty legacy rates if HT | |
6120 | * is not even supported. */ | |
6121 | if (!rdev->wiphy.bands[band]->ht_cap.ht_supported) | |
6122 | return -EINVAL; | |
6123 | ||
6124 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
6125 | if (mask.control[band].mcs[i]) | |
6126 | break; | |
6127 | ||
6128 | /* legacy and mcs rates may not be both empty */ | |
6129 | if (i == IEEE80211_HT_MCS_MASK_LEN) | |
6130 | return -EINVAL; | |
6131 | } | |
6132 | } | |
6133 | ||
6134 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); | |
6135 | } | |
6136 | ||
6137 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) | |
6138 | { | |
6139 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6140 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6141 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; | |
6142 | ||
6143 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
6144 | return -EINVAL; | |
6145 | ||
6146 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) | |
6147 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
6148 | ||
6149 | switch (wdev->iftype) { | |
6150 | case NL80211_IFTYPE_STATION: | |
6151 | case NL80211_IFTYPE_ADHOC: | |
6152 | case NL80211_IFTYPE_P2P_CLIENT: | |
6153 | case NL80211_IFTYPE_AP: | |
6154 | case NL80211_IFTYPE_AP_VLAN: | |
6155 | case NL80211_IFTYPE_MESH_POINT: | |
6156 | case NL80211_IFTYPE_P2P_GO: | |
6157 | case NL80211_IFTYPE_P2P_DEVICE: | |
6158 | break; | |
6159 | default: | |
6160 | return -EOPNOTSUPP; | |
6161 | } | |
6162 | ||
6163 | /* not much point in registering if we can't reply */ | |
6164 | if (!rdev->ops->mgmt_tx) | |
6165 | return -EOPNOTSUPP; | |
6166 | ||
6167 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, | |
6168 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), | |
6169 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
6170 | } | |
6171 | ||
6172 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) | |
6173 | { | |
6174 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6175 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6176 | struct ieee80211_channel *chan; | |
6177 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
6178 | bool channel_type_valid = false; | |
6179 | u32 freq; | |
6180 | int err; | |
6181 | void *hdr = NULL; | |
6182 | u64 cookie; | |
6183 | struct sk_buff *msg = NULL; | |
6184 | unsigned int wait = 0; | |
6185 | bool offchan, no_cck, dont_wait_for_ack; | |
6186 | ||
6187 | dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; | |
6188 | ||
6189 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
6190 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
6191 | return -EINVAL; | |
6192 | ||
6193 | if (!rdev->ops->mgmt_tx) | |
6194 | return -EOPNOTSUPP; | |
6195 | ||
6196 | switch (wdev->iftype) { | |
6197 | case NL80211_IFTYPE_STATION: | |
6198 | case NL80211_IFTYPE_ADHOC: | |
6199 | case NL80211_IFTYPE_P2P_CLIENT: | |
6200 | case NL80211_IFTYPE_AP: | |
6201 | case NL80211_IFTYPE_AP_VLAN: | |
6202 | case NL80211_IFTYPE_MESH_POINT: | |
6203 | case NL80211_IFTYPE_P2P_GO: | |
6204 | case NL80211_IFTYPE_P2P_DEVICE: | |
6205 | break; | |
6206 | default: | |
6207 | return -EOPNOTSUPP; | |
6208 | } | |
6209 | ||
6210 | if (info->attrs[NL80211_ATTR_DURATION]) { | |
6211 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) | |
6212 | return -EINVAL; | |
6213 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
6214 | ||
6215 | /* | |
6216 | * We should wait on the channel for at least a minimum amount | |
6217 | * of time (10ms) but no longer than the driver supports. | |
6218 | */ | |
6219 | if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
6220 | wait > rdev->wiphy.max_remain_on_channel_duration) | |
6221 | return -EINVAL; | |
6222 | ||
6223 | } | |
6224 | ||
6225 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
6226 | if (!nl80211_valid_channel_type(info, &channel_type)) | |
6227 | return -EINVAL; | |
6228 | channel_type_valid = true; | |
6229 | } | |
6230 | ||
6231 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; | |
6232 | ||
6233 | if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) | |
6234 | return -EINVAL; | |
6235 | ||
6236 | no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
6237 | ||
6238 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
6239 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
6240 | if (chan == NULL) | |
6241 | return -EINVAL; | |
6242 | ||
6243 | if (!dont_wait_for_ack) { | |
6244 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6245 | if (!msg) | |
6246 | return -ENOMEM; | |
6247 | ||
6248 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
6249 | NL80211_CMD_FRAME); | |
6250 | ||
6251 | if (IS_ERR(hdr)) { | |
6252 | err = PTR_ERR(hdr); | |
6253 | goto free_msg; | |
6254 | } | |
6255 | } | |
6256 | ||
6257 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type, | |
6258 | channel_type_valid, wait, | |
6259 | nla_data(info->attrs[NL80211_ATTR_FRAME]), | |
6260 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
6261 | no_cck, dont_wait_for_ack, &cookie); | |
6262 | if (err) | |
6263 | goto free_msg; | |
6264 | ||
6265 | if (msg) { | |
6266 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
6267 | goto nla_put_failure; | |
6268 | ||
6269 | genlmsg_end(msg, hdr); | |
6270 | return genlmsg_reply(msg, info); | |
6271 | } | |
6272 | ||
6273 | return 0; | |
6274 | ||
6275 | nla_put_failure: | |
6276 | err = -ENOBUFS; | |
6277 | free_msg: | |
6278 | nlmsg_free(msg); | |
6279 | return err; | |
6280 | } | |
6281 | ||
6282 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) | |
6283 | { | |
6284 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6285 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6286 | u64 cookie; | |
6287 | ||
6288 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
6289 | return -EINVAL; | |
6290 | ||
6291 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
6292 | return -EOPNOTSUPP; | |
6293 | ||
6294 | switch (wdev->iftype) { | |
6295 | case NL80211_IFTYPE_STATION: | |
6296 | case NL80211_IFTYPE_ADHOC: | |
6297 | case NL80211_IFTYPE_P2P_CLIENT: | |
6298 | case NL80211_IFTYPE_AP: | |
6299 | case NL80211_IFTYPE_AP_VLAN: | |
6300 | case NL80211_IFTYPE_P2P_GO: | |
6301 | case NL80211_IFTYPE_P2P_DEVICE: | |
6302 | break; | |
6303 | default: | |
6304 | return -EOPNOTSUPP; | |
6305 | } | |
6306 | ||
6307 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
6308 | ||
6309 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); | |
6310 | } | |
6311 | ||
6312 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) | |
6313 | { | |
6314 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6315 | struct wireless_dev *wdev; | |
6316 | struct net_device *dev = info->user_ptr[1]; | |
6317 | u8 ps_state; | |
6318 | bool state; | |
6319 | int err; | |
6320 | ||
6321 | if (!info->attrs[NL80211_ATTR_PS_STATE]) | |
6322 | return -EINVAL; | |
6323 | ||
6324 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
6325 | ||
6326 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) | |
6327 | return -EINVAL; | |
6328 | ||
6329 | wdev = dev->ieee80211_ptr; | |
6330 | ||
6331 | if (!rdev->ops->set_power_mgmt) | |
6332 | return -EOPNOTSUPP; | |
6333 | ||
6334 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
6335 | ||
6336 | if (state == wdev->ps) | |
6337 | return 0; | |
6338 | ||
6339 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); | |
6340 | if (!err) | |
6341 | wdev->ps = state; | |
6342 | return err; | |
6343 | } | |
6344 | ||
6345 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
6346 | { | |
6347 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6348 | enum nl80211_ps_state ps_state; | |
6349 | struct wireless_dev *wdev; | |
6350 | struct net_device *dev = info->user_ptr[1]; | |
6351 | struct sk_buff *msg; | |
6352 | void *hdr; | |
6353 | int err; | |
6354 | ||
6355 | wdev = dev->ieee80211_ptr; | |
6356 | ||
6357 | if (!rdev->ops->set_power_mgmt) | |
6358 | return -EOPNOTSUPP; | |
6359 | ||
6360 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6361 | if (!msg) | |
6362 | return -ENOMEM; | |
6363 | ||
6364 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
6365 | NL80211_CMD_GET_POWER_SAVE); | |
6366 | if (!hdr) { | |
6367 | err = -ENOBUFS; | |
6368 | goto free_msg; | |
6369 | } | |
6370 | ||
6371 | if (wdev->ps) | |
6372 | ps_state = NL80211_PS_ENABLED; | |
6373 | else | |
6374 | ps_state = NL80211_PS_DISABLED; | |
6375 | ||
6376 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) | |
6377 | goto nla_put_failure; | |
6378 | ||
6379 | genlmsg_end(msg, hdr); | |
6380 | return genlmsg_reply(msg, info); | |
6381 | ||
6382 | nla_put_failure: | |
6383 | err = -ENOBUFS; | |
6384 | free_msg: | |
6385 | nlmsg_free(msg); | |
6386 | return err; | |
6387 | } | |
6388 | ||
6389 | static struct nla_policy | |
6390 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
6391 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
6392 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
6393 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
6394 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, | |
6395 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
6396 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
6397 | }; | |
6398 | ||
6399 | static int nl80211_set_cqm_txe(struct genl_info *info, | |
6400 | u32 rate, u32 pkts, u32 intvl) | |
6401 | { | |
6402 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6403 | struct wireless_dev *wdev; | |
6404 | struct net_device *dev = info->user_ptr[1]; | |
6405 | ||
6406 | if ((rate < 0 || rate > 100) || | |
6407 | (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL)) | |
6408 | return -EINVAL; | |
6409 | ||
6410 | wdev = dev->ieee80211_ptr; | |
6411 | ||
6412 | if (!rdev->ops->set_cqm_txe_config) | |
6413 | return -EOPNOTSUPP; | |
6414 | ||
6415 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
6416 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
6417 | return -EOPNOTSUPP; | |
6418 | ||
6419 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); | |
6420 | } | |
6421 | ||
6422 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
6423 | s32 threshold, u32 hysteresis) | |
6424 | { | |
6425 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6426 | struct wireless_dev *wdev; | |
6427 | struct net_device *dev = info->user_ptr[1]; | |
6428 | ||
6429 | if (threshold > 0) | |
6430 | return -EINVAL; | |
6431 | ||
6432 | wdev = dev->ieee80211_ptr; | |
6433 | ||
6434 | if (!rdev->ops->set_cqm_rssi_config) | |
6435 | return -EOPNOTSUPP; | |
6436 | ||
6437 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
6438 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
6439 | return -EOPNOTSUPP; | |
6440 | ||
6441 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); | |
6442 | } | |
6443 | ||
6444 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
6445 | { | |
6446 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
6447 | struct nlattr *cqm; | |
6448 | int err; | |
6449 | ||
6450 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
6451 | if (!cqm) { | |
6452 | err = -EINVAL; | |
6453 | goto out; | |
6454 | } | |
6455 | ||
6456 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
6457 | nl80211_attr_cqm_policy); | |
6458 | if (err) | |
6459 | goto out; | |
6460 | ||
6461 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
6462 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
6463 | s32 threshold; | |
6464 | u32 hysteresis; | |
6465 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
6466 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
6467 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
6468 | } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] && | |
6469 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
6470 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
6471 | u32 rate, pkts, intvl; | |
6472 | rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
6473 | pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
6474 | intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
6475 | err = nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
6476 | } else | |
6477 | err = -EINVAL; | |
6478 | ||
6479 | out: | |
6480 | return err; | |
6481 | } | |
6482 | ||
6483 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) | |
6484 | { | |
6485 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6486 | struct net_device *dev = info->user_ptr[1]; | |
6487 | struct mesh_config cfg; | |
6488 | struct mesh_setup setup; | |
6489 | int err; | |
6490 | ||
6491 | /* start with default */ | |
6492 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
6493 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); | |
6494 | ||
6495 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { | |
6496 | /* and parse parameters if given */ | |
6497 | err = nl80211_parse_mesh_config(info, &cfg, NULL); | |
6498 | if (err) | |
6499 | return err; | |
6500 | } | |
6501 | ||
6502 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
6503 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
6504 | return -EINVAL; | |
6505 | ||
6506 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
6507 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
6508 | ||
6509 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
6510 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
6511 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
6512 | return -EINVAL; | |
6513 | ||
6514 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { | |
6515 | /* parse additional setup parameters if given */ | |
6516 | err = nl80211_parse_mesh_setup(info, &setup); | |
6517 | if (err) | |
6518 | return err; | |
6519 | } | |
6520 | ||
6521 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
6522 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
6523 | ||
6524 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
6525 | !nl80211_valid_channel_type(info, &channel_type)) | |
6526 | return -EINVAL; | |
6527 | ||
6528 | setup.channel = rdev_freq_to_chan(rdev, | |
6529 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
6530 | channel_type); | |
6531 | if (!setup.channel) | |
6532 | return -EINVAL; | |
6533 | setup.channel_type = channel_type; | |
6534 | } else { | |
6535 | /* cfg80211_join_mesh() will sort it out */ | |
6536 | setup.channel = NULL; | |
6537 | } | |
6538 | ||
6539 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); | |
6540 | } | |
6541 | ||
6542 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
6543 | { | |
6544 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6545 | struct net_device *dev = info->user_ptr[1]; | |
6546 | ||
6547 | return cfg80211_leave_mesh(rdev, dev); | |
6548 | } | |
6549 | ||
6550 | #ifdef CONFIG_PM | |
6551 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) | |
6552 | { | |
6553 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6554 | struct sk_buff *msg; | |
6555 | void *hdr; | |
6556 | ||
6557 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6558 | return -EOPNOTSUPP; | |
6559 | ||
6560 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6561 | if (!msg) | |
6562 | return -ENOMEM; | |
6563 | ||
6564 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
6565 | NL80211_CMD_GET_WOWLAN); | |
6566 | if (!hdr) | |
6567 | goto nla_put_failure; | |
6568 | ||
6569 | if (rdev->wowlan) { | |
6570 | struct nlattr *nl_wowlan; | |
6571 | ||
6572 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
6573 | if (!nl_wowlan) | |
6574 | goto nla_put_failure; | |
6575 | ||
6576 | if ((rdev->wowlan->any && | |
6577 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
6578 | (rdev->wowlan->disconnect && | |
6579 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
6580 | (rdev->wowlan->magic_pkt && | |
6581 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
6582 | (rdev->wowlan->gtk_rekey_failure && | |
6583 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
6584 | (rdev->wowlan->eap_identity_req && | |
6585 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
6586 | (rdev->wowlan->four_way_handshake && | |
6587 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
6588 | (rdev->wowlan->rfkill_release && | |
6589 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
6590 | goto nla_put_failure; | |
6591 | if (rdev->wowlan->n_patterns) { | |
6592 | struct nlattr *nl_pats, *nl_pat; | |
6593 | int i, pat_len; | |
6594 | ||
6595 | nl_pats = nla_nest_start(msg, | |
6596 | NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
6597 | if (!nl_pats) | |
6598 | goto nla_put_failure; | |
6599 | ||
6600 | for (i = 0; i < rdev->wowlan->n_patterns; i++) { | |
6601 | nl_pat = nla_nest_start(msg, i + 1); | |
6602 | if (!nl_pat) | |
6603 | goto nla_put_failure; | |
6604 | pat_len = rdev->wowlan->patterns[i].pattern_len; | |
6605 | if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK, | |
6606 | DIV_ROUND_UP(pat_len, 8), | |
6607 | rdev->wowlan->patterns[i].mask) || | |
6608 | nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN, | |
6609 | pat_len, | |
6610 | rdev->wowlan->patterns[i].pattern)) | |
6611 | goto nla_put_failure; | |
6612 | nla_nest_end(msg, nl_pat); | |
6613 | } | |
6614 | nla_nest_end(msg, nl_pats); | |
6615 | } | |
6616 | ||
6617 | nla_nest_end(msg, nl_wowlan); | |
6618 | } | |
6619 | ||
6620 | genlmsg_end(msg, hdr); | |
6621 | return genlmsg_reply(msg, info); | |
6622 | ||
6623 | nla_put_failure: | |
6624 | nlmsg_free(msg); | |
6625 | return -ENOBUFS; | |
6626 | } | |
6627 | ||
6628 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) | |
6629 | { | |
6630 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6631 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
6632 | struct cfg80211_wowlan new_triggers = {}; | |
6633 | struct cfg80211_wowlan *ntrig; | |
6634 | struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; | |
6635 | int err, i; | |
6636 | bool prev_enabled = rdev->wowlan; | |
6637 | ||
6638 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6639 | return -EOPNOTSUPP; | |
6640 | ||
6641 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { | |
6642 | cfg80211_rdev_free_wowlan(rdev); | |
6643 | rdev->wowlan = NULL; | |
6644 | goto set_wakeup; | |
6645 | } | |
6646 | ||
6647 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
6648 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6649 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6650 | nl80211_wowlan_policy); | |
6651 | if (err) | |
6652 | return err; | |
6653 | ||
6654 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
6655 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
6656 | return -EINVAL; | |
6657 | new_triggers.any = true; | |
6658 | } | |
6659 | ||
6660 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
6661 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
6662 | return -EINVAL; | |
6663 | new_triggers.disconnect = true; | |
6664 | } | |
6665 | ||
6666 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
6667 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
6668 | return -EINVAL; | |
6669 | new_triggers.magic_pkt = true; | |
6670 | } | |
6671 | ||
6672 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) | |
6673 | return -EINVAL; | |
6674 | ||
6675 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
6676 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
6677 | return -EINVAL; | |
6678 | new_triggers.gtk_rekey_failure = true; | |
6679 | } | |
6680 | ||
6681 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
6682 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
6683 | return -EINVAL; | |
6684 | new_triggers.eap_identity_req = true; | |
6685 | } | |
6686 | ||
6687 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
6688 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
6689 | return -EINVAL; | |
6690 | new_triggers.four_way_handshake = true; | |
6691 | } | |
6692 | ||
6693 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
6694 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
6695 | return -EINVAL; | |
6696 | new_triggers.rfkill_release = true; | |
6697 | } | |
6698 | ||
6699 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { | |
6700 | struct nlattr *pat; | |
6701 | int n_patterns = 0; | |
6702 | int rem, pat_len, mask_len; | |
6703 | struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT]; | |
6704 | ||
6705 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6706 | rem) | |
6707 | n_patterns++; | |
6708 | if (n_patterns > wowlan->n_patterns) | |
6709 | return -EINVAL; | |
6710 | ||
6711 | new_triggers.patterns = kcalloc(n_patterns, | |
6712 | sizeof(new_triggers.patterns[0]), | |
6713 | GFP_KERNEL); | |
6714 | if (!new_triggers.patterns) | |
6715 | return -ENOMEM; | |
6716 | ||
6717 | new_triggers.n_patterns = n_patterns; | |
6718 | i = 0; | |
6719 | ||
6720 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6721 | rem) { | |
6722 | nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT, | |
6723 | nla_data(pat), nla_len(pat), NULL); | |
6724 | err = -EINVAL; | |
6725 | if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] || | |
6726 | !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]) | |
6727 | goto error; | |
6728 | pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]); | |
6729 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
6730 | if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) != | |
6731 | mask_len) | |
6732 | goto error; | |
6733 | if (pat_len > wowlan->pattern_max_len || | |
6734 | pat_len < wowlan->pattern_min_len) | |
6735 | goto error; | |
6736 | ||
6737 | new_triggers.patterns[i].mask = | |
6738 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
6739 | if (!new_triggers.patterns[i].mask) { | |
6740 | err = -ENOMEM; | |
6741 | goto error; | |
6742 | } | |
6743 | new_triggers.patterns[i].pattern = | |
6744 | new_triggers.patterns[i].mask + mask_len; | |
6745 | memcpy(new_triggers.patterns[i].mask, | |
6746 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]), | |
6747 | mask_len); | |
6748 | new_triggers.patterns[i].pattern_len = pat_len; | |
6749 | memcpy(new_triggers.patterns[i].pattern, | |
6750 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]), | |
6751 | pat_len); | |
6752 | i++; | |
6753 | } | |
6754 | } | |
6755 | ||
6756 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); | |
6757 | if (!ntrig) { | |
6758 | err = -ENOMEM; | |
6759 | goto error; | |
6760 | } | |
6761 | cfg80211_rdev_free_wowlan(rdev); | |
6762 | rdev->wowlan = ntrig; | |
6763 | ||
6764 | set_wakeup: | |
6765 | if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan) | |
6766 | rdev_set_wakeup(rdev, rdev->wowlan); | |
6767 | ||
6768 | return 0; | |
6769 | error: | |
6770 | for (i = 0; i < new_triggers.n_patterns; i++) | |
6771 | kfree(new_triggers.patterns[i].mask); | |
6772 | kfree(new_triggers.patterns); | |
6773 | return err; | |
6774 | } | |
6775 | #endif | |
6776 | ||
6777 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) | |
6778 | { | |
6779 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6780 | struct net_device *dev = info->user_ptr[1]; | |
6781 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6782 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
6783 | struct cfg80211_gtk_rekey_data rekey_data; | |
6784 | int err; | |
6785 | ||
6786 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
6787 | return -EINVAL; | |
6788 | ||
6789 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
6790 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6791 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6792 | nl80211_rekey_policy); | |
6793 | if (err) | |
6794 | return err; | |
6795 | ||
6796 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
6797 | return -ERANGE; | |
6798 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
6799 | return -ERANGE; | |
6800 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
6801 | return -ERANGE; | |
6802 | ||
6803 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), | |
6804 | NL80211_KEK_LEN); | |
6805 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), | |
6806 | NL80211_KCK_LEN); | |
6807 | memcpy(rekey_data.replay_ctr, | |
6808 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), | |
6809 | NL80211_REPLAY_CTR_LEN); | |
6810 | ||
6811 | wdev_lock(wdev); | |
6812 | if (!wdev->current_bss) { | |
6813 | err = -ENOTCONN; | |
6814 | goto out; | |
6815 | } | |
6816 | ||
6817 | if (!rdev->ops->set_rekey_data) { | |
6818 | err = -EOPNOTSUPP; | |
6819 | goto out; | |
6820 | } | |
6821 | ||
6822 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); | |
6823 | out: | |
6824 | wdev_unlock(wdev); | |
6825 | return err; | |
6826 | } | |
6827 | ||
6828 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, | |
6829 | struct genl_info *info) | |
6830 | { | |
6831 | struct net_device *dev = info->user_ptr[1]; | |
6832 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6833 | ||
6834 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6835 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6836 | return -EINVAL; | |
6837 | ||
6838 | if (wdev->ap_unexpected_nlportid) | |
6839 | return -EBUSY; | |
6840 | ||
6841 | wdev->ap_unexpected_nlportid = info->snd_portid; | |
6842 | return 0; | |
6843 | } | |
6844 | ||
6845 | static int nl80211_probe_client(struct sk_buff *skb, | |
6846 | struct genl_info *info) | |
6847 | { | |
6848 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6849 | struct net_device *dev = info->user_ptr[1]; | |
6850 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6851 | struct sk_buff *msg; | |
6852 | void *hdr; | |
6853 | const u8 *addr; | |
6854 | u64 cookie; | |
6855 | int err; | |
6856 | ||
6857 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6858 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6859 | return -EOPNOTSUPP; | |
6860 | ||
6861 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6862 | return -EINVAL; | |
6863 | ||
6864 | if (!rdev->ops->probe_client) | |
6865 | return -EOPNOTSUPP; | |
6866 | ||
6867 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6868 | if (!msg) | |
6869 | return -ENOMEM; | |
6870 | ||
6871 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
6872 | NL80211_CMD_PROBE_CLIENT); | |
6873 | ||
6874 | if (IS_ERR(hdr)) { | |
6875 | err = PTR_ERR(hdr); | |
6876 | goto free_msg; | |
6877 | } | |
6878 | ||
6879 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6880 | ||
6881 | err = rdev_probe_client(rdev, dev, addr, &cookie); | |
6882 | if (err) | |
6883 | goto free_msg; | |
6884 | ||
6885 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
6886 | goto nla_put_failure; | |
6887 | ||
6888 | genlmsg_end(msg, hdr); | |
6889 | ||
6890 | return genlmsg_reply(msg, info); | |
6891 | ||
6892 | nla_put_failure: | |
6893 | err = -ENOBUFS; | |
6894 | free_msg: | |
6895 | nlmsg_free(msg); | |
6896 | return err; | |
6897 | } | |
6898 | ||
6899 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) | |
6900 | { | |
6901 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6902 | ||
6903 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
6904 | return -EOPNOTSUPP; | |
6905 | ||
6906 | if (rdev->ap_beacons_nlportid) | |
6907 | return -EBUSY; | |
6908 | ||
6909 | rdev->ap_beacons_nlportid = info->snd_portid; | |
6910 | ||
6911 | return 0; | |
6912 | } | |
6913 | ||
6914 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
6915 | { | |
6916 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6917 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6918 | int err; | |
6919 | ||
6920 | if (!rdev->ops->start_p2p_device) | |
6921 | return -EOPNOTSUPP; | |
6922 | ||
6923 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
6924 | return -EOPNOTSUPP; | |
6925 | ||
6926 | if (wdev->p2p_started) | |
6927 | return 0; | |
6928 | ||
6929 | mutex_lock(&rdev->devlist_mtx); | |
6930 | err = cfg80211_can_add_interface(rdev, wdev->iftype); | |
6931 | mutex_unlock(&rdev->devlist_mtx); | |
6932 | if (err) | |
6933 | return err; | |
6934 | ||
6935 | err = rdev_start_p2p_device(rdev, wdev); | |
6936 | if (err) | |
6937 | return err; | |
6938 | ||
6939 | wdev->p2p_started = true; | |
6940 | mutex_lock(&rdev->devlist_mtx); | |
6941 | rdev->opencount++; | |
6942 | mutex_unlock(&rdev->devlist_mtx); | |
6943 | ||
6944 | return 0; | |
6945 | } | |
6946 | ||
6947 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
6948 | { | |
6949 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6950 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6951 | ||
6952 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
6953 | return -EOPNOTSUPP; | |
6954 | ||
6955 | if (!rdev->ops->stop_p2p_device) | |
6956 | return -EOPNOTSUPP; | |
6957 | ||
6958 | if (!wdev->p2p_started) | |
6959 | return 0; | |
6960 | ||
6961 | rdev_stop_p2p_device(rdev, wdev); | |
6962 | wdev->p2p_started = false; | |
6963 | ||
6964 | mutex_lock(&rdev->devlist_mtx); | |
6965 | rdev->opencount--; | |
6966 | mutex_unlock(&rdev->devlist_mtx); | |
6967 | ||
6968 | if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) { | |
6969 | rdev->scan_req->aborted = true; | |
6970 | ___cfg80211_scan_done(rdev, true); | |
6971 | } | |
6972 | ||
6973 | return 0; | |
6974 | } | |
6975 | ||
6976 | #define NL80211_FLAG_NEED_WIPHY 0x01 | |
6977 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
6978 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
6979 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 | |
6980 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
6981 | NL80211_FLAG_CHECK_NETDEV_UP) | |
6982 | #define NL80211_FLAG_NEED_WDEV 0x10 | |
6983 | /* If a netdev is associated, it must be UP, P2P must be started */ | |
6984 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ | |
6985 | NL80211_FLAG_CHECK_NETDEV_UP) | |
6986 | ||
6987 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
6988 | struct genl_info *info) | |
6989 | { | |
6990 | struct cfg80211_registered_device *rdev; | |
6991 | struct wireless_dev *wdev; | |
6992 | struct net_device *dev; | |
6993 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
6994 | ||
6995 | if (rtnl) | |
6996 | rtnl_lock(); | |
6997 | ||
6998 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
6999 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); | |
7000 | if (IS_ERR(rdev)) { | |
7001 | if (rtnl) | |
7002 | rtnl_unlock(); | |
7003 | return PTR_ERR(rdev); | |
7004 | } | |
7005 | info->user_ptr[0] = rdev; | |
7006 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || | |
7007 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
7008 | mutex_lock(&cfg80211_mutex); | |
7009 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), | |
7010 | info->attrs); | |
7011 | if (IS_ERR(wdev)) { | |
7012 | mutex_unlock(&cfg80211_mutex); | |
7013 | if (rtnl) | |
7014 | rtnl_unlock(); | |
7015 | return PTR_ERR(wdev); | |
7016 | } | |
7017 | ||
7018 | dev = wdev->netdev; | |
7019 | rdev = wiphy_to_dev(wdev->wiphy); | |
7020 | ||
7021 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
7022 | if (!dev) { | |
7023 | mutex_unlock(&cfg80211_mutex); | |
7024 | if (rtnl) | |
7025 | rtnl_unlock(); | |
7026 | return -EINVAL; | |
7027 | } | |
7028 | ||
7029 | info->user_ptr[1] = dev; | |
7030 | } else { | |
7031 | info->user_ptr[1] = wdev; | |
7032 | } | |
7033 | ||
7034 | if (dev) { | |
7035 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
7036 | !netif_running(dev)) { | |
7037 | mutex_unlock(&cfg80211_mutex); | |
7038 | if (rtnl) | |
7039 | rtnl_unlock(); | |
7040 | return -ENETDOWN; | |
7041 | } | |
7042 | ||
7043 | dev_hold(dev); | |
7044 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { | |
7045 | if (!wdev->p2p_started) { | |
7046 | mutex_unlock(&cfg80211_mutex); | |
7047 | if (rtnl) | |
7048 | rtnl_unlock(); | |
7049 | return -ENETDOWN; | |
7050 | } | |
7051 | } | |
7052 | ||
7053 | cfg80211_lock_rdev(rdev); | |
7054 | ||
7055 | mutex_unlock(&cfg80211_mutex); | |
7056 | ||
7057 | info->user_ptr[0] = rdev; | |
7058 | } | |
7059 | ||
7060 | return 0; | |
7061 | } | |
7062 | ||
7063 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
7064 | struct genl_info *info) | |
7065 | { | |
7066 | if (info->user_ptr[0]) | |
7067 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
7068 | if (info->user_ptr[1]) { | |
7069 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
7070 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7071 | ||
7072 | if (wdev->netdev) | |
7073 | dev_put(wdev->netdev); | |
7074 | } else { | |
7075 | dev_put(info->user_ptr[1]); | |
7076 | } | |
7077 | } | |
7078 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
7079 | rtnl_unlock(); | |
7080 | } | |
7081 | ||
7082 | static struct genl_ops nl80211_ops[] = { | |
7083 | { | |
7084 | .cmd = NL80211_CMD_GET_WIPHY, | |
7085 | .doit = nl80211_get_wiphy, | |
7086 | .dumpit = nl80211_dump_wiphy, | |
7087 | .policy = nl80211_policy, | |
7088 | /* can be retrieved by unprivileged users */ | |
7089 | .internal_flags = NL80211_FLAG_NEED_WIPHY, | |
7090 | }, | |
7091 | { | |
7092 | .cmd = NL80211_CMD_SET_WIPHY, | |
7093 | .doit = nl80211_set_wiphy, | |
7094 | .policy = nl80211_policy, | |
7095 | .flags = GENL_ADMIN_PERM, | |
7096 | .internal_flags = NL80211_FLAG_NEED_RTNL, | |
7097 | }, | |
7098 | { | |
7099 | .cmd = NL80211_CMD_GET_INTERFACE, | |
7100 | .doit = nl80211_get_interface, | |
7101 | .dumpit = nl80211_dump_interface, | |
7102 | .policy = nl80211_policy, | |
7103 | /* can be retrieved by unprivileged users */ | |
7104 | .internal_flags = NL80211_FLAG_NEED_WDEV, | |
7105 | }, | |
7106 | { | |
7107 | .cmd = NL80211_CMD_SET_INTERFACE, | |
7108 | .doit = nl80211_set_interface, | |
7109 | .policy = nl80211_policy, | |
7110 | .flags = GENL_ADMIN_PERM, | |
7111 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7112 | NL80211_FLAG_NEED_RTNL, | |
7113 | }, | |
7114 | { | |
7115 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
7116 | .doit = nl80211_new_interface, | |
7117 | .policy = nl80211_policy, | |
7118 | .flags = GENL_ADMIN_PERM, | |
7119 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7120 | NL80211_FLAG_NEED_RTNL, | |
7121 | }, | |
7122 | { | |
7123 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
7124 | .doit = nl80211_del_interface, | |
7125 | .policy = nl80211_policy, | |
7126 | .flags = GENL_ADMIN_PERM, | |
7127 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
7128 | NL80211_FLAG_NEED_RTNL, | |
7129 | }, | |
7130 | { | |
7131 | .cmd = NL80211_CMD_GET_KEY, | |
7132 | .doit = nl80211_get_key, | |
7133 | .policy = nl80211_policy, | |
7134 | .flags = GENL_ADMIN_PERM, | |
7135 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7136 | NL80211_FLAG_NEED_RTNL, | |
7137 | }, | |
7138 | { | |
7139 | .cmd = NL80211_CMD_SET_KEY, | |
7140 | .doit = nl80211_set_key, | |
7141 | .policy = nl80211_policy, | |
7142 | .flags = GENL_ADMIN_PERM, | |
7143 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7144 | NL80211_FLAG_NEED_RTNL, | |
7145 | }, | |
7146 | { | |
7147 | .cmd = NL80211_CMD_NEW_KEY, | |
7148 | .doit = nl80211_new_key, | |
7149 | .policy = nl80211_policy, | |
7150 | .flags = GENL_ADMIN_PERM, | |
7151 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7152 | NL80211_FLAG_NEED_RTNL, | |
7153 | }, | |
7154 | { | |
7155 | .cmd = NL80211_CMD_DEL_KEY, | |
7156 | .doit = nl80211_del_key, | |
7157 | .policy = nl80211_policy, | |
7158 | .flags = GENL_ADMIN_PERM, | |
7159 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7160 | NL80211_FLAG_NEED_RTNL, | |
7161 | }, | |
7162 | { | |
7163 | .cmd = NL80211_CMD_SET_BEACON, | |
7164 | .policy = nl80211_policy, | |
7165 | .flags = GENL_ADMIN_PERM, | |
7166 | .doit = nl80211_set_beacon, | |
7167 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7168 | NL80211_FLAG_NEED_RTNL, | |
7169 | }, | |
7170 | { | |
7171 | .cmd = NL80211_CMD_START_AP, | |
7172 | .policy = nl80211_policy, | |
7173 | .flags = GENL_ADMIN_PERM, | |
7174 | .doit = nl80211_start_ap, | |
7175 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7176 | NL80211_FLAG_NEED_RTNL, | |
7177 | }, | |
7178 | { | |
7179 | .cmd = NL80211_CMD_STOP_AP, | |
7180 | .policy = nl80211_policy, | |
7181 | .flags = GENL_ADMIN_PERM, | |
7182 | .doit = nl80211_stop_ap, | |
7183 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7184 | NL80211_FLAG_NEED_RTNL, | |
7185 | }, | |
7186 | { | |
7187 | .cmd = NL80211_CMD_GET_STATION, | |
7188 | .doit = nl80211_get_station, | |
7189 | .dumpit = nl80211_dump_station, | |
7190 | .policy = nl80211_policy, | |
7191 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7192 | NL80211_FLAG_NEED_RTNL, | |
7193 | }, | |
7194 | { | |
7195 | .cmd = NL80211_CMD_SET_STATION, | |
7196 | .doit = nl80211_set_station, | |
7197 | .policy = nl80211_policy, | |
7198 | .flags = GENL_ADMIN_PERM, | |
7199 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7200 | NL80211_FLAG_NEED_RTNL, | |
7201 | }, | |
7202 | { | |
7203 | .cmd = NL80211_CMD_NEW_STATION, | |
7204 | .doit = nl80211_new_station, | |
7205 | .policy = nl80211_policy, | |
7206 | .flags = GENL_ADMIN_PERM, | |
7207 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7208 | NL80211_FLAG_NEED_RTNL, | |
7209 | }, | |
7210 | { | |
7211 | .cmd = NL80211_CMD_DEL_STATION, | |
7212 | .doit = nl80211_del_station, | |
7213 | .policy = nl80211_policy, | |
7214 | .flags = GENL_ADMIN_PERM, | |
7215 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7216 | NL80211_FLAG_NEED_RTNL, | |
7217 | }, | |
7218 | { | |
7219 | .cmd = NL80211_CMD_GET_MPATH, | |
7220 | .doit = nl80211_get_mpath, | |
7221 | .dumpit = nl80211_dump_mpath, | |
7222 | .policy = nl80211_policy, | |
7223 | .flags = GENL_ADMIN_PERM, | |
7224 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7225 | NL80211_FLAG_NEED_RTNL, | |
7226 | }, | |
7227 | { | |
7228 | .cmd = NL80211_CMD_SET_MPATH, | |
7229 | .doit = nl80211_set_mpath, | |
7230 | .policy = nl80211_policy, | |
7231 | .flags = GENL_ADMIN_PERM, | |
7232 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7233 | NL80211_FLAG_NEED_RTNL, | |
7234 | }, | |
7235 | { | |
7236 | .cmd = NL80211_CMD_NEW_MPATH, | |
7237 | .doit = nl80211_new_mpath, | |
7238 | .policy = nl80211_policy, | |
7239 | .flags = GENL_ADMIN_PERM, | |
7240 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7241 | NL80211_FLAG_NEED_RTNL, | |
7242 | }, | |
7243 | { | |
7244 | .cmd = NL80211_CMD_DEL_MPATH, | |
7245 | .doit = nl80211_del_mpath, | |
7246 | .policy = nl80211_policy, | |
7247 | .flags = GENL_ADMIN_PERM, | |
7248 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7249 | NL80211_FLAG_NEED_RTNL, | |
7250 | }, | |
7251 | { | |
7252 | .cmd = NL80211_CMD_SET_BSS, | |
7253 | .doit = nl80211_set_bss, | |
7254 | .policy = nl80211_policy, | |
7255 | .flags = GENL_ADMIN_PERM, | |
7256 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7257 | NL80211_FLAG_NEED_RTNL, | |
7258 | }, | |
7259 | { | |
7260 | .cmd = NL80211_CMD_GET_REG, | |
7261 | .doit = nl80211_get_reg, | |
7262 | .policy = nl80211_policy, | |
7263 | /* can be retrieved by unprivileged users */ | |
7264 | }, | |
7265 | { | |
7266 | .cmd = NL80211_CMD_SET_REG, | |
7267 | .doit = nl80211_set_reg, | |
7268 | .policy = nl80211_policy, | |
7269 | .flags = GENL_ADMIN_PERM, | |
7270 | }, | |
7271 | { | |
7272 | .cmd = NL80211_CMD_REQ_SET_REG, | |
7273 | .doit = nl80211_req_set_reg, | |
7274 | .policy = nl80211_policy, | |
7275 | .flags = GENL_ADMIN_PERM, | |
7276 | }, | |
7277 | { | |
7278 | .cmd = NL80211_CMD_GET_MESH_CONFIG, | |
7279 | .doit = nl80211_get_mesh_config, | |
7280 | .policy = nl80211_policy, | |
7281 | /* can be retrieved by unprivileged users */ | |
7282 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7283 | NL80211_FLAG_NEED_RTNL, | |
7284 | }, | |
7285 | { | |
7286 | .cmd = NL80211_CMD_SET_MESH_CONFIG, | |
7287 | .doit = nl80211_update_mesh_config, | |
7288 | .policy = nl80211_policy, | |
7289 | .flags = GENL_ADMIN_PERM, | |
7290 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7291 | NL80211_FLAG_NEED_RTNL, | |
7292 | }, | |
7293 | { | |
7294 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
7295 | .doit = nl80211_trigger_scan, | |
7296 | .policy = nl80211_policy, | |
7297 | .flags = GENL_ADMIN_PERM, | |
7298 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7299 | NL80211_FLAG_NEED_RTNL, | |
7300 | }, | |
7301 | { | |
7302 | .cmd = NL80211_CMD_GET_SCAN, | |
7303 | .policy = nl80211_policy, | |
7304 | .dumpit = nl80211_dump_scan, | |
7305 | }, | |
7306 | { | |
7307 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
7308 | .doit = nl80211_start_sched_scan, | |
7309 | .policy = nl80211_policy, | |
7310 | .flags = GENL_ADMIN_PERM, | |
7311 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7312 | NL80211_FLAG_NEED_RTNL, | |
7313 | }, | |
7314 | { | |
7315 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
7316 | .doit = nl80211_stop_sched_scan, | |
7317 | .policy = nl80211_policy, | |
7318 | .flags = GENL_ADMIN_PERM, | |
7319 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7320 | NL80211_FLAG_NEED_RTNL, | |
7321 | }, | |
7322 | { | |
7323 | .cmd = NL80211_CMD_AUTHENTICATE, | |
7324 | .doit = nl80211_authenticate, | |
7325 | .policy = nl80211_policy, | |
7326 | .flags = GENL_ADMIN_PERM, | |
7327 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7328 | NL80211_FLAG_NEED_RTNL, | |
7329 | }, | |
7330 | { | |
7331 | .cmd = NL80211_CMD_ASSOCIATE, | |
7332 | .doit = nl80211_associate, | |
7333 | .policy = nl80211_policy, | |
7334 | .flags = GENL_ADMIN_PERM, | |
7335 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7336 | NL80211_FLAG_NEED_RTNL, | |
7337 | }, | |
7338 | { | |
7339 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
7340 | .doit = nl80211_deauthenticate, | |
7341 | .policy = nl80211_policy, | |
7342 | .flags = GENL_ADMIN_PERM, | |
7343 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7344 | NL80211_FLAG_NEED_RTNL, | |
7345 | }, | |
7346 | { | |
7347 | .cmd = NL80211_CMD_DISASSOCIATE, | |
7348 | .doit = nl80211_disassociate, | |
7349 | .policy = nl80211_policy, | |
7350 | .flags = GENL_ADMIN_PERM, | |
7351 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7352 | NL80211_FLAG_NEED_RTNL, | |
7353 | }, | |
7354 | { | |
7355 | .cmd = NL80211_CMD_JOIN_IBSS, | |
7356 | .doit = nl80211_join_ibss, | |
7357 | .policy = nl80211_policy, | |
7358 | .flags = GENL_ADMIN_PERM, | |
7359 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7360 | NL80211_FLAG_NEED_RTNL, | |
7361 | }, | |
7362 | { | |
7363 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
7364 | .doit = nl80211_leave_ibss, | |
7365 | .policy = nl80211_policy, | |
7366 | .flags = GENL_ADMIN_PERM, | |
7367 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7368 | NL80211_FLAG_NEED_RTNL, | |
7369 | }, | |
7370 | #ifdef CONFIG_NL80211_TESTMODE | |
7371 | { | |
7372 | .cmd = NL80211_CMD_TESTMODE, | |
7373 | .doit = nl80211_testmode_do, | |
7374 | .dumpit = nl80211_testmode_dump, | |
7375 | .policy = nl80211_policy, | |
7376 | .flags = GENL_ADMIN_PERM, | |
7377 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7378 | NL80211_FLAG_NEED_RTNL, | |
7379 | }, | |
7380 | #endif | |
7381 | { | |
7382 | .cmd = NL80211_CMD_CONNECT, | |
7383 | .doit = nl80211_connect, | |
7384 | .policy = nl80211_policy, | |
7385 | .flags = GENL_ADMIN_PERM, | |
7386 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7387 | NL80211_FLAG_NEED_RTNL, | |
7388 | }, | |
7389 | { | |
7390 | .cmd = NL80211_CMD_DISCONNECT, | |
7391 | .doit = nl80211_disconnect, | |
7392 | .policy = nl80211_policy, | |
7393 | .flags = GENL_ADMIN_PERM, | |
7394 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7395 | NL80211_FLAG_NEED_RTNL, | |
7396 | }, | |
7397 | { | |
7398 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
7399 | .doit = nl80211_wiphy_netns, | |
7400 | .policy = nl80211_policy, | |
7401 | .flags = GENL_ADMIN_PERM, | |
7402 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7403 | NL80211_FLAG_NEED_RTNL, | |
7404 | }, | |
7405 | { | |
7406 | .cmd = NL80211_CMD_GET_SURVEY, | |
7407 | .policy = nl80211_policy, | |
7408 | .dumpit = nl80211_dump_survey, | |
7409 | }, | |
7410 | { | |
7411 | .cmd = NL80211_CMD_SET_PMKSA, | |
7412 | .doit = nl80211_setdel_pmksa, | |
7413 | .policy = nl80211_policy, | |
7414 | .flags = GENL_ADMIN_PERM, | |
7415 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7416 | NL80211_FLAG_NEED_RTNL, | |
7417 | }, | |
7418 | { | |
7419 | .cmd = NL80211_CMD_DEL_PMKSA, | |
7420 | .doit = nl80211_setdel_pmksa, | |
7421 | .policy = nl80211_policy, | |
7422 | .flags = GENL_ADMIN_PERM, | |
7423 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7424 | NL80211_FLAG_NEED_RTNL, | |
7425 | }, | |
7426 | { | |
7427 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
7428 | .doit = nl80211_flush_pmksa, | |
7429 | .policy = nl80211_policy, | |
7430 | .flags = GENL_ADMIN_PERM, | |
7431 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7432 | NL80211_FLAG_NEED_RTNL, | |
7433 | }, | |
7434 | { | |
7435 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
7436 | .doit = nl80211_remain_on_channel, | |
7437 | .policy = nl80211_policy, | |
7438 | .flags = GENL_ADMIN_PERM, | |
7439 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7440 | NL80211_FLAG_NEED_RTNL, | |
7441 | }, | |
7442 | { | |
7443 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
7444 | .doit = nl80211_cancel_remain_on_channel, | |
7445 | .policy = nl80211_policy, | |
7446 | .flags = GENL_ADMIN_PERM, | |
7447 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7448 | NL80211_FLAG_NEED_RTNL, | |
7449 | }, | |
7450 | { | |
7451 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
7452 | .doit = nl80211_set_tx_bitrate_mask, | |
7453 | .policy = nl80211_policy, | |
7454 | .flags = GENL_ADMIN_PERM, | |
7455 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7456 | NL80211_FLAG_NEED_RTNL, | |
7457 | }, | |
7458 | { | |
7459 | .cmd = NL80211_CMD_REGISTER_FRAME, | |
7460 | .doit = nl80211_register_mgmt, | |
7461 | .policy = nl80211_policy, | |
7462 | .flags = GENL_ADMIN_PERM, | |
7463 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
7464 | NL80211_FLAG_NEED_RTNL, | |
7465 | }, | |
7466 | { | |
7467 | .cmd = NL80211_CMD_FRAME, | |
7468 | .doit = nl80211_tx_mgmt, | |
7469 | .policy = nl80211_policy, | |
7470 | .flags = GENL_ADMIN_PERM, | |
7471 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7472 | NL80211_FLAG_NEED_RTNL, | |
7473 | }, | |
7474 | { | |
7475 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
7476 | .doit = nl80211_tx_mgmt_cancel_wait, | |
7477 | .policy = nl80211_policy, | |
7478 | .flags = GENL_ADMIN_PERM, | |
7479 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7480 | NL80211_FLAG_NEED_RTNL, | |
7481 | }, | |
7482 | { | |
7483 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
7484 | .doit = nl80211_set_power_save, | |
7485 | .policy = nl80211_policy, | |
7486 | .flags = GENL_ADMIN_PERM, | |
7487 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7488 | NL80211_FLAG_NEED_RTNL, | |
7489 | }, | |
7490 | { | |
7491 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
7492 | .doit = nl80211_get_power_save, | |
7493 | .policy = nl80211_policy, | |
7494 | /* can be retrieved by unprivileged users */ | |
7495 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7496 | NL80211_FLAG_NEED_RTNL, | |
7497 | }, | |
7498 | { | |
7499 | .cmd = NL80211_CMD_SET_CQM, | |
7500 | .doit = nl80211_set_cqm, | |
7501 | .policy = nl80211_policy, | |
7502 | .flags = GENL_ADMIN_PERM, | |
7503 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7504 | NL80211_FLAG_NEED_RTNL, | |
7505 | }, | |
7506 | { | |
7507 | .cmd = NL80211_CMD_SET_CHANNEL, | |
7508 | .doit = nl80211_set_channel, | |
7509 | .policy = nl80211_policy, | |
7510 | .flags = GENL_ADMIN_PERM, | |
7511 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7512 | NL80211_FLAG_NEED_RTNL, | |
7513 | }, | |
7514 | { | |
7515 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
7516 | .doit = nl80211_set_wds_peer, | |
7517 | .policy = nl80211_policy, | |
7518 | .flags = GENL_ADMIN_PERM, | |
7519 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7520 | NL80211_FLAG_NEED_RTNL, | |
7521 | }, | |
7522 | { | |
7523 | .cmd = NL80211_CMD_JOIN_MESH, | |
7524 | .doit = nl80211_join_mesh, | |
7525 | .policy = nl80211_policy, | |
7526 | .flags = GENL_ADMIN_PERM, | |
7527 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7528 | NL80211_FLAG_NEED_RTNL, | |
7529 | }, | |
7530 | { | |
7531 | .cmd = NL80211_CMD_LEAVE_MESH, | |
7532 | .doit = nl80211_leave_mesh, | |
7533 | .policy = nl80211_policy, | |
7534 | .flags = GENL_ADMIN_PERM, | |
7535 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7536 | NL80211_FLAG_NEED_RTNL, | |
7537 | }, | |
7538 | #ifdef CONFIG_PM | |
7539 | { | |
7540 | .cmd = NL80211_CMD_GET_WOWLAN, | |
7541 | .doit = nl80211_get_wowlan, | |
7542 | .policy = nl80211_policy, | |
7543 | /* can be retrieved by unprivileged users */ | |
7544 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7545 | NL80211_FLAG_NEED_RTNL, | |
7546 | }, | |
7547 | { | |
7548 | .cmd = NL80211_CMD_SET_WOWLAN, | |
7549 | .doit = nl80211_set_wowlan, | |
7550 | .policy = nl80211_policy, | |
7551 | .flags = GENL_ADMIN_PERM, | |
7552 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7553 | NL80211_FLAG_NEED_RTNL, | |
7554 | }, | |
7555 | #endif | |
7556 | { | |
7557 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
7558 | .doit = nl80211_set_rekey_data, | |
7559 | .policy = nl80211_policy, | |
7560 | .flags = GENL_ADMIN_PERM, | |
7561 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7562 | NL80211_FLAG_NEED_RTNL, | |
7563 | }, | |
7564 | { | |
7565 | .cmd = NL80211_CMD_TDLS_MGMT, | |
7566 | .doit = nl80211_tdls_mgmt, | |
7567 | .policy = nl80211_policy, | |
7568 | .flags = GENL_ADMIN_PERM, | |
7569 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7570 | NL80211_FLAG_NEED_RTNL, | |
7571 | }, | |
7572 | { | |
7573 | .cmd = NL80211_CMD_TDLS_OPER, | |
7574 | .doit = nl80211_tdls_oper, | |
7575 | .policy = nl80211_policy, | |
7576 | .flags = GENL_ADMIN_PERM, | |
7577 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7578 | NL80211_FLAG_NEED_RTNL, | |
7579 | }, | |
7580 | { | |
7581 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
7582 | .doit = nl80211_register_unexpected_frame, | |
7583 | .policy = nl80211_policy, | |
7584 | .flags = GENL_ADMIN_PERM, | |
7585 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7586 | NL80211_FLAG_NEED_RTNL, | |
7587 | }, | |
7588 | { | |
7589 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
7590 | .doit = nl80211_probe_client, | |
7591 | .policy = nl80211_policy, | |
7592 | .flags = GENL_ADMIN_PERM, | |
7593 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7594 | NL80211_FLAG_NEED_RTNL, | |
7595 | }, | |
7596 | { | |
7597 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
7598 | .doit = nl80211_register_beacons, | |
7599 | .policy = nl80211_policy, | |
7600 | .flags = GENL_ADMIN_PERM, | |
7601 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7602 | NL80211_FLAG_NEED_RTNL, | |
7603 | }, | |
7604 | { | |
7605 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
7606 | .doit = nl80211_set_noack_map, | |
7607 | .policy = nl80211_policy, | |
7608 | .flags = GENL_ADMIN_PERM, | |
7609 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7610 | NL80211_FLAG_NEED_RTNL, | |
7611 | }, | |
7612 | { | |
7613 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
7614 | .doit = nl80211_start_p2p_device, | |
7615 | .policy = nl80211_policy, | |
7616 | .flags = GENL_ADMIN_PERM, | |
7617 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
7618 | NL80211_FLAG_NEED_RTNL, | |
7619 | }, | |
7620 | { | |
7621 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
7622 | .doit = nl80211_stop_p2p_device, | |
7623 | .policy = nl80211_policy, | |
7624 | .flags = GENL_ADMIN_PERM, | |
7625 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7626 | NL80211_FLAG_NEED_RTNL, | |
7627 | }, | |
7628 | }; | |
7629 | ||
7630 | static struct genl_multicast_group nl80211_mlme_mcgrp = { | |
7631 | .name = "mlme", | |
7632 | }; | |
7633 | ||
7634 | /* multicast groups */ | |
7635 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
7636 | .name = "config", | |
7637 | }; | |
7638 | static struct genl_multicast_group nl80211_scan_mcgrp = { | |
7639 | .name = "scan", | |
7640 | }; | |
7641 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { | |
7642 | .name = "regulatory", | |
7643 | }; | |
7644 | ||
7645 | /* notification functions */ | |
7646 | ||
7647 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
7648 | { | |
7649 | struct sk_buff *msg; | |
7650 | ||
7651 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7652 | if (!msg) | |
7653 | return; | |
7654 | ||
7655 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
7656 | nlmsg_free(msg); | |
7657 | return; | |
7658 | } | |
7659 | ||
7660 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7661 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
7662 | } | |
7663 | ||
7664 | static int nl80211_add_scan_req(struct sk_buff *msg, | |
7665 | struct cfg80211_registered_device *rdev) | |
7666 | { | |
7667 | struct cfg80211_scan_request *req = rdev->scan_req; | |
7668 | struct nlattr *nest; | |
7669 | int i; | |
7670 | ||
7671 | ASSERT_RDEV_LOCK(rdev); | |
7672 | ||
7673 | if (WARN_ON(!req)) | |
7674 | return 0; | |
7675 | ||
7676 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
7677 | if (!nest) | |
7678 | goto nla_put_failure; | |
7679 | for (i = 0; i < req->n_ssids; i++) { | |
7680 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
7681 | goto nla_put_failure; | |
7682 | } | |
7683 | nla_nest_end(msg, nest); | |
7684 | ||
7685 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
7686 | if (!nest) | |
7687 | goto nla_put_failure; | |
7688 | for (i = 0; i < req->n_channels; i++) { | |
7689 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
7690 | goto nla_put_failure; | |
7691 | } | |
7692 | nla_nest_end(msg, nest); | |
7693 | ||
7694 | if (req->ie && | |
7695 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
7696 | goto nla_put_failure; | |
7697 | ||
7698 | if (req->flags) | |
7699 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags); | |
7700 | ||
7701 | return 0; | |
7702 | nla_put_failure: | |
7703 | return -ENOBUFS; | |
7704 | } | |
7705 | ||
7706 | static int nl80211_send_scan_msg(struct sk_buff *msg, | |
7707 | struct cfg80211_registered_device *rdev, | |
7708 | struct wireless_dev *wdev, | |
7709 | u32 portid, u32 seq, int flags, | |
7710 | u32 cmd) | |
7711 | { | |
7712 | void *hdr; | |
7713 | ||
7714 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
7715 | if (!hdr) | |
7716 | return -1; | |
7717 | ||
7718 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
7719 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
7720 | wdev->netdev->ifindex)) || | |
7721 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
7722 | goto nla_put_failure; | |
7723 | ||
7724 | /* ignore errors and send incomplete event anyway */ | |
7725 | nl80211_add_scan_req(msg, rdev); | |
7726 | ||
7727 | return genlmsg_end(msg, hdr); | |
7728 | ||
7729 | nla_put_failure: | |
7730 | genlmsg_cancel(msg, hdr); | |
7731 | return -EMSGSIZE; | |
7732 | } | |
7733 | ||
7734 | static int | |
7735 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
7736 | struct cfg80211_registered_device *rdev, | |
7737 | struct net_device *netdev, | |
7738 | u32 portid, u32 seq, int flags, u32 cmd) | |
7739 | { | |
7740 | void *hdr; | |
7741 | ||
7742 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
7743 | if (!hdr) | |
7744 | return -1; | |
7745 | ||
7746 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
7747 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
7748 | goto nla_put_failure; | |
7749 | ||
7750 | return genlmsg_end(msg, hdr); | |
7751 | ||
7752 | nla_put_failure: | |
7753 | genlmsg_cancel(msg, hdr); | |
7754 | return -EMSGSIZE; | |
7755 | } | |
7756 | ||
7757 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, | |
7758 | struct wireless_dev *wdev) | |
7759 | { | |
7760 | struct sk_buff *msg; | |
7761 | ||
7762 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7763 | if (!msg) | |
7764 | return; | |
7765 | ||
7766 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, | |
7767 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
7768 | nlmsg_free(msg); | |
7769 | return; | |
7770 | } | |
7771 | ||
7772 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7773 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7774 | } | |
7775 | ||
7776 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, | |
7777 | struct wireless_dev *wdev) | |
7778 | { | |
7779 | struct sk_buff *msg; | |
7780 | ||
7781 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7782 | if (!msg) | |
7783 | return; | |
7784 | ||
7785 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, | |
7786 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
7787 | nlmsg_free(msg); | |
7788 | return; | |
7789 | } | |
7790 | ||
7791 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7792 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7793 | } | |
7794 | ||
7795 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
7796 | struct wireless_dev *wdev) | |
7797 | { | |
7798 | struct sk_buff *msg; | |
7799 | ||
7800 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7801 | if (!msg) | |
7802 | return; | |
7803 | ||
7804 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, | |
7805 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
7806 | nlmsg_free(msg); | |
7807 | return; | |
7808 | } | |
7809 | ||
7810 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7811 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7812 | } | |
7813 | ||
7814 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, | |
7815 | struct net_device *netdev) | |
7816 | { | |
7817 | struct sk_buff *msg; | |
7818 | ||
7819 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7820 | if (!msg) | |
7821 | return; | |
7822 | ||
7823 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
7824 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
7825 | nlmsg_free(msg); | |
7826 | return; | |
7827 | } | |
7828 | ||
7829 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7830 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7831 | } | |
7832 | ||
7833 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
7834 | struct net_device *netdev, u32 cmd) | |
7835 | { | |
7836 | struct sk_buff *msg; | |
7837 | ||
7838 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7839 | if (!msg) | |
7840 | return; | |
7841 | ||
7842 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
7843 | nlmsg_free(msg); | |
7844 | return; | |
7845 | } | |
7846 | ||
7847 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7848 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7849 | } | |
7850 | ||
7851 | /* | |
7852 | * This can happen on global regulatory changes or device specific settings | |
7853 | * based on custom world regulatory domains. | |
7854 | */ | |
7855 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
7856 | { | |
7857 | struct sk_buff *msg; | |
7858 | void *hdr; | |
7859 | ||
7860 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7861 | if (!msg) | |
7862 | return; | |
7863 | ||
7864 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
7865 | if (!hdr) { | |
7866 | nlmsg_free(msg); | |
7867 | return; | |
7868 | } | |
7869 | ||
7870 | /* Userspace can always count this one always being set */ | |
7871 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) | |
7872 | goto nla_put_failure; | |
7873 | ||
7874 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
7875 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7876 | NL80211_REGDOM_TYPE_WORLD)) | |
7877 | goto nla_put_failure; | |
7878 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
7879 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7880 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
7881 | goto nla_put_failure; | |
7882 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
7883 | request->intersect) { | |
7884 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7885 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
7886 | goto nla_put_failure; | |
7887 | } else { | |
7888 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7889 | NL80211_REGDOM_TYPE_COUNTRY) || | |
7890 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
7891 | request->alpha2)) | |
7892 | goto nla_put_failure; | |
7893 | } | |
7894 | ||
7895 | if (wiphy_idx_valid(request->wiphy_idx) && | |
7896 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) | |
7897 | goto nla_put_failure; | |
7898 | ||
7899 | genlmsg_end(msg, hdr); | |
7900 | ||
7901 | rcu_read_lock(); | |
7902 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
7903 | GFP_ATOMIC); | |
7904 | rcu_read_unlock(); | |
7905 | ||
7906 | return; | |
7907 | ||
7908 | nla_put_failure: | |
7909 | genlmsg_cancel(msg, hdr); | |
7910 | nlmsg_free(msg); | |
7911 | } | |
7912 | ||
7913 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, | |
7914 | struct net_device *netdev, | |
7915 | const u8 *buf, size_t len, | |
7916 | enum nl80211_commands cmd, gfp_t gfp) | |
7917 | { | |
7918 | struct sk_buff *msg; | |
7919 | void *hdr; | |
7920 | ||
7921 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7922 | if (!msg) | |
7923 | return; | |
7924 | ||
7925 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7926 | if (!hdr) { | |
7927 | nlmsg_free(msg); | |
7928 | return; | |
7929 | } | |
7930 | ||
7931 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
7932 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7933 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
7934 | goto nla_put_failure; | |
7935 | ||
7936 | genlmsg_end(msg, hdr); | |
7937 | ||
7938 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7939 | nl80211_mlme_mcgrp.id, gfp); | |
7940 | return; | |
7941 | ||
7942 | nla_put_failure: | |
7943 | genlmsg_cancel(msg, hdr); | |
7944 | nlmsg_free(msg); | |
7945 | } | |
7946 | ||
7947 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
7948 | struct net_device *netdev, const u8 *buf, | |
7949 | size_t len, gfp_t gfp) | |
7950 | { | |
7951 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7952 | NL80211_CMD_AUTHENTICATE, gfp); | |
7953 | } | |
7954 | ||
7955 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
7956 | struct net_device *netdev, const u8 *buf, | |
7957 | size_t len, gfp_t gfp) | |
7958 | { | |
7959 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7960 | NL80211_CMD_ASSOCIATE, gfp); | |
7961 | } | |
7962 | ||
7963 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, | |
7964 | struct net_device *netdev, const u8 *buf, | |
7965 | size_t len, gfp_t gfp) | |
7966 | { | |
7967 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7968 | NL80211_CMD_DEAUTHENTICATE, gfp); | |
7969 | } | |
7970 | ||
7971 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, | |
7972 | struct net_device *netdev, const u8 *buf, | |
7973 | size_t len, gfp_t gfp) | |
7974 | { | |
7975 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7976 | NL80211_CMD_DISASSOCIATE, gfp); | |
7977 | } | |
7978 | ||
7979 | void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, | |
7980 | struct net_device *netdev, const u8 *buf, | |
7981 | size_t len, gfp_t gfp) | |
7982 | { | |
7983 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7984 | NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp); | |
7985 | } | |
7986 | ||
7987 | void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, | |
7988 | struct net_device *netdev, const u8 *buf, | |
7989 | size_t len, gfp_t gfp) | |
7990 | { | |
7991 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7992 | NL80211_CMD_UNPROT_DISASSOCIATE, gfp); | |
7993 | } | |
7994 | ||
7995 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, | |
7996 | struct net_device *netdev, int cmd, | |
7997 | const u8 *addr, gfp_t gfp) | |
7998 | { | |
7999 | struct sk_buff *msg; | |
8000 | void *hdr; | |
8001 | ||
8002 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8003 | if (!msg) | |
8004 | return; | |
8005 | ||
8006 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8007 | if (!hdr) { | |
8008 | nlmsg_free(msg); | |
8009 | return; | |
8010 | } | |
8011 | ||
8012 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8013 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8014 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
8015 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
8016 | goto nla_put_failure; | |
8017 | ||
8018 | genlmsg_end(msg, hdr); | |
8019 | ||
8020 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8021 | nl80211_mlme_mcgrp.id, gfp); | |
8022 | return; | |
8023 | ||
8024 | nla_put_failure: | |
8025 | genlmsg_cancel(msg, hdr); | |
8026 | nlmsg_free(msg); | |
8027 | } | |
8028 | ||
8029 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
8030 | struct net_device *netdev, const u8 *addr, | |
8031 | gfp_t gfp) | |
8032 | { | |
8033 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
8034 | addr, gfp); | |
8035 | } | |
8036 | ||
8037 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
8038 | struct net_device *netdev, const u8 *addr, | |
8039 | gfp_t gfp) | |
8040 | { | |
8041 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, | |
8042 | addr, gfp); | |
8043 | } | |
8044 | ||
8045 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, | |
8046 | struct net_device *netdev, const u8 *bssid, | |
8047 | const u8 *req_ie, size_t req_ie_len, | |
8048 | const u8 *resp_ie, size_t resp_ie_len, | |
8049 | u16 status, gfp_t gfp) | |
8050 | { | |
8051 | struct sk_buff *msg; | |
8052 | void *hdr; | |
8053 | ||
8054 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8055 | if (!msg) | |
8056 | return; | |
8057 | ||
8058 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
8059 | if (!hdr) { | |
8060 | nlmsg_free(msg); | |
8061 | return; | |
8062 | } | |
8063 | ||
8064 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8065 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8066 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
8067 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
8068 | (req_ie && | |
8069 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8070 | (resp_ie && | |
8071 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8072 | goto nla_put_failure; | |
8073 | ||
8074 | genlmsg_end(msg, hdr); | |
8075 | ||
8076 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8077 | nl80211_mlme_mcgrp.id, gfp); | |
8078 | return; | |
8079 | ||
8080 | nla_put_failure: | |
8081 | genlmsg_cancel(msg, hdr); | |
8082 | nlmsg_free(msg); | |
8083 | ||
8084 | } | |
8085 | ||
8086 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
8087 | struct net_device *netdev, const u8 *bssid, | |
8088 | const u8 *req_ie, size_t req_ie_len, | |
8089 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
8090 | { | |
8091 | struct sk_buff *msg; | |
8092 | void *hdr; | |
8093 | ||
8094 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8095 | if (!msg) | |
8096 | return; | |
8097 | ||
8098 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
8099 | if (!hdr) { | |
8100 | nlmsg_free(msg); | |
8101 | return; | |
8102 | } | |
8103 | ||
8104 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8105 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8106 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
8107 | (req_ie && | |
8108 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8109 | (resp_ie && | |
8110 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8111 | goto nla_put_failure; | |
8112 | ||
8113 | genlmsg_end(msg, hdr); | |
8114 | ||
8115 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8116 | nl80211_mlme_mcgrp.id, gfp); | |
8117 | return; | |
8118 | ||
8119 | nla_put_failure: | |
8120 | genlmsg_cancel(msg, hdr); | |
8121 | nlmsg_free(msg); | |
8122 | ||
8123 | } | |
8124 | ||
8125 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
8126 | struct net_device *netdev, u16 reason, | |
8127 | const u8 *ie, size_t ie_len, bool from_ap) | |
8128 | { | |
8129 | struct sk_buff *msg; | |
8130 | void *hdr; | |
8131 | ||
8132 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8133 | if (!msg) | |
8134 | return; | |
8135 | ||
8136 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
8137 | if (!hdr) { | |
8138 | nlmsg_free(msg); | |
8139 | return; | |
8140 | } | |
8141 | ||
8142 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8143 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8144 | (from_ap && reason && | |
8145 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
8146 | (from_ap && | |
8147 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
8148 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
8149 | goto nla_put_failure; | |
8150 | ||
8151 | genlmsg_end(msg, hdr); | |
8152 | ||
8153 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8154 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
8155 | return; | |
8156 | ||
8157 | nla_put_failure: | |
8158 | genlmsg_cancel(msg, hdr); | |
8159 | nlmsg_free(msg); | |
8160 | ||
8161 | } | |
8162 | ||
8163 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, | |
8164 | struct net_device *netdev, const u8 *bssid, | |
8165 | gfp_t gfp) | |
8166 | { | |
8167 | struct sk_buff *msg; | |
8168 | void *hdr; | |
8169 | ||
8170 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8171 | if (!msg) | |
8172 | return; | |
8173 | ||
8174 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
8175 | if (!hdr) { | |
8176 | nlmsg_free(msg); | |
8177 | return; | |
8178 | } | |
8179 | ||
8180 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8181 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8182 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8183 | goto nla_put_failure; | |
8184 | ||
8185 | genlmsg_end(msg, hdr); | |
8186 | ||
8187 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8188 | nl80211_mlme_mcgrp.id, gfp); | |
8189 | return; | |
8190 | ||
8191 | nla_put_failure: | |
8192 | genlmsg_cancel(msg, hdr); | |
8193 | nlmsg_free(msg); | |
8194 | } | |
8195 | ||
8196 | void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev, | |
8197 | struct net_device *netdev, | |
8198 | const u8 *macaddr, const u8* ie, u8 ie_len, | |
8199 | gfp_t gfp) | |
8200 | { | |
8201 | struct sk_buff *msg; | |
8202 | void *hdr; | |
8203 | ||
8204 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8205 | if (!msg) | |
8206 | return; | |
8207 | ||
8208 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
8209 | if (!hdr) { | |
8210 | nlmsg_free(msg); | |
8211 | return; | |
8212 | } | |
8213 | ||
8214 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8215 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8216 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) || | |
8217 | (ie_len && ie && | |
8218 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
8219 | goto nla_put_failure; | |
8220 | ||
8221 | genlmsg_end(msg, hdr); | |
8222 | ||
8223 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8224 | nl80211_mlme_mcgrp.id, gfp); | |
8225 | return; | |
8226 | ||
8227 | nla_put_failure: | |
8228 | genlmsg_cancel(msg, hdr); | |
8229 | nlmsg_free(msg); | |
8230 | } | |
8231 | ||
8232 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, | |
8233 | struct net_device *netdev, const u8 *addr, | |
8234 | enum nl80211_key_type key_type, int key_id, | |
8235 | const u8 *tsc, gfp_t gfp) | |
8236 | { | |
8237 | struct sk_buff *msg; | |
8238 | void *hdr; | |
8239 | ||
8240 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8241 | if (!msg) | |
8242 | return; | |
8243 | ||
8244 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
8245 | if (!hdr) { | |
8246 | nlmsg_free(msg); | |
8247 | return; | |
8248 | } | |
8249 | ||
8250 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8251 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8252 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
8253 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
8254 | (key_id != -1 && | |
8255 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
8256 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
8257 | goto nla_put_failure; | |
8258 | ||
8259 | genlmsg_end(msg, hdr); | |
8260 | ||
8261 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8262 | nl80211_mlme_mcgrp.id, gfp); | |
8263 | return; | |
8264 | ||
8265 | nla_put_failure: | |
8266 | genlmsg_cancel(msg, hdr); | |
8267 | nlmsg_free(msg); | |
8268 | } | |
8269 | ||
8270 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, | |
8271 | struct ieee80211_channel *channel_before, | |
8272 | struct ieee80211_channel *channel_after) | |
8273 | { | |
8274 | struct sk_buff *msg; | |
8275 | void *hdr; | |
8276 | struct nlattr *nl_freq; | |
8277 | ||
8278 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); | |
8279 | if (!msg) | |
8280 | return; | |
8281 | ||
8282 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
8283 | if (!hdr) { | |
8284 | nlmsg_free(msg); | |
8285 | return; | |
8286 | } | |
8287 | ||
8288 | /* | |
8289 | * Since we are applying the beacon hint to a wiphy we know its | |
8290 | * wiphy_idx is valid | |
8291 | */ | |
8292 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
8293 | goto nla_put_failure; | |
8294 | ||
8295 | /* Before */ | |
8296 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
8297 | if (!nl_freq) | |
8298 | goto nla_put_failure; | |
8299 | if (nl80211_msg_put_channel(msg, channel_before)) | |
8300 | goto nla_put_failure; | |
8301 | nla_nest_end(msg, nl_freq); | |
8302 | ||
8303 | /* After */ | |
8304 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
8305 | if (!nl_freq) | |
8306 | goto nla_put_failure; | |
8307 | if (nl80211_msg_put_channel(msg, channel_after)) | |
8308 | goto nla_put_failure; | |
8309 | nla_nest_end(msg, nl_freq); | |
8310 | ||
8311 | genlmsg_end(msg, hdr); | |
8312 | ||
8313 | rcu_read_lock(); | |
8314 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
8315 | GFP_ATOMIC); | |
8316 | rcu_read_unlock(); | |
8317 | ||
8318 | return; | |
8319 | ||
8320 | nla_put_failure: | |
8321 | genlmsg_cancel(msg, hdr); | |
8322 | nlmsg_free(msg); | |
8323 | } | |
8324 | ||
8325 | static void nl80211_send_remain_on_chan_event( | |
8326 | int cmd, struct cfg80211_registered_device *rdev, | |
8327 | struct wireless_dev *wdev, u64 cookie, | |
8328 | struct ieee80211_channel *chan, | |
8329 | enum nl80211_channel_type channel_type, | |
8330 | unsigned int duration, gfp_t gfp) | |
8331 | { | |
8332 | struct sk_buff *msg; | |
8333 | void *hdr; | |
8334 | ||
8335 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8336 | if (!msg) | |
8337 | return; | |
8338 | ||
8339 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8340 | if (!hdr) { | |
8341 | nlmsg_free(msg); | |
8342 | return; | |
8343 | } | |
8344 | ||
8345 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8346 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
8347 | wdev->netdev->ifindex)) || | |
8348 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || | |
8349 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || | |
8350 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) || | |
8351 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
8352 | goto nla_put_failure; | |
8353 | ||
8354 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && | |
8355 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
8356 | goto nla_put_failure; | |
8357 | ||
8358 | genlmsg_end(msg, hdr); | |
8359 | ||
8360 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8361 | nl80211_mlme_mcgrp.id, gfp); | |
8362 | return; | |
8363 | ||
8364 | nla_put_failure: | |
8365 | genlmsg_cancel(msg, hdr); | |
8366 | nlmsg_free(msg); | |
8367 | } | |
8368 | ||
8369 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
8370 | struct wireless_dev *wdev, u64 cookie, | |
8371 | struct ieee80211_channel *chan, | |
8372 | enum nl80211_channel_type channel_type, | |
8373 | unsigned int duration, gfp_t gfp) | |
8374 | { | |
8375 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
8376 | rdev, wdev, cookie, chan, | |
8377 | channel_type, duration, gfp); | |
8378 | } | |
8379 | ||
8380 | void nl80211_send_remain_on_channel_cancel( | |
8381 | struct cfg80211_registered_device *rdev, | |
8382 | struct wireless_dev *wdev, | |
8383 | u64 cookie, struct ieee80211_channel *chan, | |
8384 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
8385 | { | |
8386 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
8387 | rdev, wdev, cookie, chan, | |
8388 | channel_type, 0, gfp); | |
8389 | } | |
8390 | ||
8391 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, | |
8392 | struct net_device *dev, const u8 *mac_addr, | |
8393 | struct station_info *sinfo, gfp_t gfp) | |
8394 | { | |
8395 | struct sk_buff *msg; | |
8396 | ||
8397 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8398 | if (!msg) | |
8399 | return; | |
8400 | ||
8401 | if (nl80211_send_station(msg, 0, 0, 0, | |
8402 | rdev, dev, mac_addr, sinfo) < 0) { | |
8403 | nlmsg_free(msg); | |
8404 | return; | |
8405 | } | |
8406 | ||
8407 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8408 | nl80211_mlme_mcgrp.id, gfp); | |
8409 | } | |
8410 | ||
8411 | void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev, | |
8412 | struct net_device *dev, const u8 *mac_addr, | |
8413 | gfp_t gfp) | |
8414 | { | |
8415 | struct sk_buff *msg; | |
8416 | void *hdr; | |
8417 | ||
8418 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8419 | if (!msg) | |
8420 | return; | |
8421 | ||
8422 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); | |
8423 | if (!hdr) { | |
8424 | nlmsg_free(msg); | |
8425 | return; | |
8426 | } | |
8427 | ||
8428 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8429 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
8430 | goto nla_put_failure; | |
8431 | ||
8432 | genlmsg_end(msg, hdr); | |
8433 | ||
8434 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8435 | nl80211_mlme_mcgrp.id, gfp); | |
8436 | return; | |
8437 | ||
8438 | nla_put_failure: | |
8439 | genlmsg_cancel(msg, hdr); | |
8440 | nlmsg_free(msg); | |
8441 | } | |
8442 | ||
8443 | void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev, | |
8444 | struct net_device *dev, const u8 *mac_addr, | |
8445 | enum nl80211_connect_failed_reason reason, | |
8446 | gfp_t gfp) | |
8447 | { | |
8448 | struct sk_buff *msg; | |
8449 | void *hdr; | |
8450 | ||
8451 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8452 | if (!msg) | |
8453 | return; | |
8454 | ||
8455 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
8456 | if (!hdr) { | |
8457 | nlmsg_free(msg); | |
8458 | return; | |
8459 | } | |
8460 | ||
8461 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8462 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
8463 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
8464 | goto nla_put_failure; | |
8465 | ||
8466 | genlmsg_end(msg, hdr); | |
8467 | ||
8468 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8469 | nl80211_mlme_mcgrp.id, gfp); | |
8470 | return; | |
8471 | ||
8472 | nla_put_failure: | |
8473 | genlmsg_cancel(msg, hdr); | |
8474 | nlmsg_free(msg); | |
8475 | } | |
8476 | ||
8477 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, | |
8478 | const u8 *addr, gfp_t gfp) | |
8479 | { | |
8480 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8481 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
8482 | struct sk_buff *msg; | |
8483 | void *hdr; | |
8484 | int err; | |
8485 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); | |
8486 | ||
8487 | if (!nlportid) | |
8488 | return false; | |
8489 | ||
8490 | msg = nlmsg_new(100, gfp); | |
8491 | if (!msg) | |
8492 | return true; | |
8493 | ||
8494 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8495 | if (!hdr) { | |
8496 | nlmsg_free(msg); | |
8497 | return true; | |
8498 | } | |
8499 | ||
8500 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8501 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8502 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
8503 | goto nla_put_failure; | |
8504 | ||
8505 | err = genlmsg_end(msg, hdr); | |
8506 | if (err < 0) { | |
8507 | nlmsg_free(msg); | |
8508 | return true; | |
8509 | } | |
8510 | ||
8511 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
8512 | return true; | |
8513 | ||
8514 | nla_put_failure: | |
8515 | genlmsg_cancel(msg, hdr); | |
8516 | nlmsg_free(msg); | |
8517 | return true; | |
8518 | } | |
8519 | ||
8520 | bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp) | |
8521 | { | |
8522 | return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
8523 | addr, gfp); | |
8524 | } | |
8525 | ||
8526 | bool nl80211_unexpected_4addr_frame(struct net_device *dev, | |
8527 | const u8 *addr, gfp_t gfp) | |
8528 | { | |
8529 | return __nl80211_unexpected_frame(dev, | |
8530 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
8531 | addr, gfp); | |
8532 | } | |
8533 | ||
8534 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, | |
8535 | struct wireless_dev *wdev, u32 nlportid, | |
8536 | int freq, int sig_dbm, | |
8537 | const u8 *buf, size_t len, gfp_t gfp) | |
8538 | { | |
8539 | struct net_device *netdev = wdev->netdev; | |
8540 | struct sk_buff *msg; | |
8541 | void *hdr; | |
8542 | ||
8543 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8544 | if (!msg) | |
8545 | return -ENOMEM; | |
8546 | ||
8547 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); | |
8548 | if (!hdr) { | |
8549 | nlmsg_free(msg); | |
8550 | return -ENOMEM; | |
8551 | } | |
8552 | ||
8553 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8554 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
8555 | netdev->ifindex)) || | |
8556 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || | |
8557 | (sig_dbm && | |
8558 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
8559 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
8560 | goto nla_put_failure; | |
8561 | ||
8562 | genlmsg_end(msg, hdr); | |
8563 | ||
8564 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
8565 | ||
8566 | nla_put_failure: | |
8567 | genlmsg_cancel(msg, hdr); | |
8568 | nlmsg_free(msg); | |
8569 | return -ENOBUFS; | |
8570 | } | |
8571 | ||
8572 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, | |
8573 | struct wireless_dev *wdev, u64 cookie, | |
8574 | const u8 *buf, size_t len, bool ack, | |
8575 | gfp_t gfp) | |
8576 | { | |
8577 | struct net_device *netdev = wdev->netdev; | |
8578 | struct sk_buff *msg; | |
8579 | void *hdr; | |
8580 | ||
8581 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8582 | if (!msg) | |
8583 | return; | |
8584 | ||
8585 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); | |
8586 | if (!hdr) { | |
8587 | nlmsg_free(msg); | |
8588 | return; | |
8589 | } | |
8590 | ||
8591 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8592 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
8593 | netdev->ifindex)) || | |
8594 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || | |
8595 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8596 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8597 | goto nla_put_failure; | |
8598 | ||
8599 | genlmsg_end(msg, hdr); | |
8600 | ||
8601 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
8602 | return; | |
8603 | ||
8604 | nla_put_failure: | |
8605 | genlmsg_cancel(msg, hdr); | |
8606 | nlmsg_free(msg); | |
8607 | } | |
8608 | ||
8609 | void | |
8610 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
8611 | struct net_device *netdev, | |
8612 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
8613 | gfp_t gfp) | |
8614 | { | |
8615 | struct sk_buff *msg; | |
8616 | struct nlattr *pinfoattr; | |
8617 | void *hdr; | |
8618 | ||
8619 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8620 | if (!msg) | |
8621 | return; | |
8622 | ||
8623 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8624 | if (!hdr) { | |
8625 | nlmsg_free(msg); | |
8626 | return; | |
8627 | } | |
8628 | ||
8629 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8630 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8631 | goto nla_put_failure; | |
8632 | ||
8633 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8634 | if (!pinfoattr) | |
8635 | goto nla_put_failure; | |
8636 | ||
8637 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
8638 | rssi_event)) | |
8639 | goto nla_put_failure; | |
8640 | ||
8641 | nla_nest_end(msg, pinfoattr); | |
8642 | ||
8643 | genlmsg_end(msg, hdr); | |
8644 | ||
8645 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8646 | nl80211_mlme_mcgrp.id, gfp); | |
8647 | return; | |
8648 | ||
8649 | nla_put_failure: | |
8650 | genlmsg_cancel(msg, hdr); | |
8651 | nlmsg_free(msg); | |
8652 | } | |
8653 | ||
8654 | void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, | |
8655 | struct net_device *netdev, const u8 *bssid, | |
8656 | const u8 *replay_ctr, gfp_t gfp) | |
8657 | { | |
8658 | struct sk_buff *msg; | |
8659 | struct nlattr *rekey_attr; | |
8660 | void *hdr; | |
8661 | ||
8662 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8663 | if (!msg) | |
8664 | return; | |
8665 | ||
8666 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
8667 | if (!hdr) { | |
8668 | nlmsg_free(msg); | |
8669 | return; | |
8670 | } | |
8671 | ||
8672 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8673 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8674 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8675 | goto nla_put_failure; | |
8676 | ||
8677 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
8678 | if (!rekey_attr) | |
8679 | goto nla_put_failure; | |
8680 | ||
8681 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, | |
8682 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
8683 | goto nla_put_failure; | |
8684 | ||
8685 | nla_nest_end(msg, rekey_attr); | |
8686 | ||
8687 | genlmsg_end(msg, hdr); | |
8688 | ||
8689 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8690 | nl80211_mlme_mcgrp.id, gfp); | |
8691 | return; | |
8692 | ||
8693 | nla_put_failure: | |
8694 | genlmsg_cancel(msg, hdr); | |
8695 | nlmsg_free(msg); | |
8696 | } | |
8697 | ||
8698 | void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, | |
8699 | struct net_device *netdev, int index, | |
8700 | const u8 *bssid, bool preauth, gfp_t gfp) | |
8701 | { | |
8702 | struct sk_buff *msg; | |
8703 | struct nlattr *attr; | |
8704 | void *hdr; | |
8705 | ||
8706 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8707 | if (!msg) | |
8708 | return; | |
8709 | ||
8710 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
8711 | if (!hdr) { | |
8712 | nlmsg_free(msg); | |
8713 | return; | |
8714 | } | |
8715 | ||
8716 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8717 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8718 | goto nla_put_failure; | |
8719 | ||
8720 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
8721 | if (!attr) | |
8722 | goto nla_put_failure; | |
8723 | ||
8724 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || | |
8725 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
8726 | (preauth && | |
8727 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
8728 | goto nla_put_failure; | |
8729 | ||
8730 | nla_nest_end(msg, attr); | |
8731 | ||
8732 | genlmsg_end(msg, hdr); | |
8733 | ||
8734 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8735 | nl80211_mlme_mcgrp.id, gfp); | |
8736 | return; | |
8737 | ||
8738 | nla_put_failure: | |
8739 | genlmsg_cancel(msg, hdr); | |
8740 | nlmsg_free(msg); | |
8741 | } | |
8742 | ||
8743 | void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, | |
8744 | struct net_device *netdev, int freq, | |
8745 | enum nl80211_channel_type type, gfp_t gfp) | |
8746 | { | |
8747 | struct sk_buff *msg; | |
8748 | void *hdr; | |
8749 | ||
8750 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8751 | if (!msg) | |
8752 | return; | |
8753 | ||
8754 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); | |
8755 | if (!hdr) { | |
8756 | nlmsg_free(msg); | |
8757 | return; | |
8758 | } | |
8759 | ||
8760 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8761 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || | |
8762 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type)) | |
8763 | goto nla_put_failure; | |
8764 | ||
8765 | genlmsg_end(msg, hdr); | |
8766 | ||
8767 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8768 | nl80211_mlme_mcgrp.id, gfp); | |
8769 | return; | |
8770 | ||
8771 | nla_put_failure: | |
8772 | genlmsg_cancel(msg, hdr); | |
8773 | nlmsg_free(msg); | |
8774 | } | |
8775 | ||
8776 | void | |
8777 | nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev, | |
8778 | struct net_device *netdev, const u8 *peer, | |
8779 | u32 num_packets, u32 rate, u32 intvl, gfp_t gfp) | |
8780 | { | |
8781 | struct sk_buff *msg; | |
8782 | struct nlattr *pinfoattr; | |
8783 | void *hdr; | |
8784 | ||
8785 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8786 | if (!msg) | |
8787 | return; | |
8788 | ||
8789 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8790 | if (!hdr) { | |
8791 | nlmsg_free(msg); | |
8792 | return; | |
8793 | } | |
8794 | ||
8795 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8796 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8797 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
8798 | goto nla_put_failure; | |
8799 | ||
8800 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8801 | if (!pinfoattr) | |
8802 | goto nla_put_failure; | |
8803 | ||
8804 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
8805 | goto nla_put_failure; | |
8806 | ||
8807 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
8808 | goto nla_put_failure; | |
8809 | ||
8810 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
8811 | goto nla_put_failure; | |
8812 | ||
8813 | nla_nest_end(msg, pinfoattr); | |
8814 | ||
8815 | genlmsg_end(msg, hdr); | |
8816 | ||
8817 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8818 | nl80211_mlme_mcgrp.id, gfp); | |
8819 | return; | |
8820 | ||
8821 | nla_put_failure: | |
8822 | genlmsg_cancel(msg, hdr); | |
8823 | nlmsg_free(msg); | |
8824 | } | |
8825 | ||
8826 | void | |
8827 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
8828 | struct net_device *netdev, const u8 *peer, | |
8829 | u32 num_packets, gfp_t gfp) | |
8830 | { | |
8831 | struct sk_buff *msg; | |
8832 | struct nlattr *pinfoattr; | |
8833 | void *hdr; | |
8834 | ||
8835 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8836 | if (!msg) | |
8837 | return; | |
8838 | ||
8839 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8840 | if (!hdr) { | |
8841 | nlmsg_free(msg); | |
8842 | return; | |
8843 | } | |
8844 | ||
8845 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8846 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8847 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
8848 | goto nla_put_failure; | |
8849 | ||
8850 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8851 | if (!pinfoattr) | |
8852 | goto nla_put_failure; | |
8853 | ||
8854 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) | |
8855 | goto nla_put_failure; | |
8856 | ||
8857 | nla_nest_end(msg, pinfoattr); | |
8858 | ||
8859 | genlmsg_end(msg, hdr); | |
8860 | ||
8861 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8862 | nl80211_mlme_mcgrp.id, gfp); | |
8863 | return; | |
8864 | ||
8865 | nla_put_failure: | |
8866 | genlmsg_cancel(msg, hdr); | |
8867 | nlmsg_free(msg); | |
8868 | } | |
8869 | ||
8870 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, | |
8871 | u64 cookie, bool acked, gfp_t gfp) | |
8872 | { | |
8873 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8874 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
8875 | struct sk_buff *msg; | |
8876 | void *hdr; | |
8877 | int err; | |
8878 | ||
8879 | trace_cfg80211_probe_status(dev, addr, cookie, acked); | |
8880 | ||
8881 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8882 | ||
8883 | if (!msg) | |
8884 | return; | |
8885 | ||
8886 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
8887 | if (!hdr) { | |
8888 | nlmsg_free(msg); | |
8889 | return; | |
8890 | } | |
8891 | ||
8892 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8893 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8894 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
8895 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8896 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8897 | goto nla_put_failure; | |
8898 | ||
8899 | err = genlmsg_end(msg, hdr); | |
8900 | if (err < 0) { | |
8901 | nlmsg_free(msg); | |
8902 | return; | |
8903 | } | |
8904 | ||
8905 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8906 | nl80211_mlme_mcgrp.id, gfp); | |
8907 | return; | |
8908 | ||
8909 | nla_put_failure: | |
8910 | genlmsg_cancel(msg, hdr); | |
8911 | nlmsg_free(msg); | |
8912 | } | |
8913 | EXPORT_SYMBOL(cfg80211_probe_status); | |
8914 | ||
8915 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, | |
8916 | const u8 *frame, size_t len, | |
8917 | int freq, int sig_dbm, gfp_t gfp) | |
8918 | { | |
8919 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
8920 | struct sk_buff *msg; | |
8921 | void *hdr; | |
8922 | u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid); | |
8923 | ||
8924 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); | |
8925 | ||
8926 | if (!nlportid) | |
8927 | return; | |
8928 | ||
8929 | msg = nlmsg_new(len + 100, gfp); | |
8930 | if (!msg) | |
8931 | return; | |
8932 | ||
8933 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); | |
8934 | if (!hdr) { | |
8935 | nlmsg_free(msg); | |
8936 | return; | |
8937 | } | |
8938 | ||
8939 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8940 | (freq && | |
8941 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
8942 | (sig_dbm && | |
8943 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
8944 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
8945 | goto nla_put_failure; | |
8946 | ||
8947 | genlmsg_end(msg, hdr); | |
8948 | ||
8949 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
8950 | return; | |
8951 | ||
8952 | nla_put_failure: | |
8953 | genlmsg_cancel(msg, hdr); | |
8954 | nlmsg_free(msg); | |
8955 | } | |
8956 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
8957 | ||
8958 | static int nl80211_netlink_notify(struct notifier_block * nb, | |
8959 | unsigned long state, | |
8960 | void *_notify) | |
8961 | { | |
8962 | struct netlink_notify *notify = _notify; | |
8963 | struct cfg80211_registered_device *rdev; | |
8964 | struct wireless_dev *wdev; | |
8965 | ||
8966 | if (state != NETLINK_URELEASE) | |
8967 | return NOTIFY_DONE; | |
8968 | ||
8969 | rcu_read_lock(); | |
8970 | ||
8971 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { | |
8972 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) | |
8973 | cfg80211_mlme_unregister_socket(wdev, notify->portid); | |
8974 | if (rdev->ap_beacons_nlportid == notify->portid) | |
8975 | rdev->ap_beacons_nlportid = 0; | |
8976 | } | |
8977 | ||
8978 | rcu_read_unlock(); | |
8979 | ||
8980 | return NOTIFY_DONE; | |
8981 | } | |
8982 | ||
8983 | static struct notifier_block nl80211_netlink_notifier = { | |
8984 | .notifier_call = nl80211_netlink_notify, | |
8985 | }; | |
8986 | ||
8987 | /* initialisation/exit functions */ | |
8988 | ||
8989 | int nl80211_init(void) | |
8990 | { | |
8991 | int err; | |
8992 | ||
8993 | err = genl_register_family_with_ops(&nl80211_fam, | |
8994 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
8995 | if (err) | |
8996 | return err; | |
8997 | ||
8998 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
8999 | if (err) | |
9000 | goto err_out; | |
9001 | ||
9002 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); | |
9003 | if (err) | |
9004 | goto err_out; | |
9005 | ||
9006 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); | |
9007 | if (err) | |
9008 | goto err_out; | |
9009 | ||
9010 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); | |
9011 | if (err) | |
9012 | goto err_out; | |
9013 | ||
9014 | #ifdef CONFIG_NL80211_TESTMODE | |
9015 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
9016 | if (err) | |
9017 | goto err_out; | |
9018 | #endif | |
9019 | ||
9020 | err = netlink_register_notifier(&nl80211_netlink_notifier); | |
9021 | if (err) | |
9022 | goto err_out; | |
9023 | ||
9024 | return 0; | |
9025 | err_out: | |
9026 | genl_unregister_family(&nl80211_fam); | |
9027 | return err; | |
9028 | } | |
9029 | ||
9030 | void nl80211_exit(void) | |
9031 | { | |
9032 | netlink_unregister_notifier(&nl80211_netlink_notifier); | |
9033 | genl_unregister_family(&nl80211_fam); | |
9034 | } |