Root/
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 <net/inet_connection_sock.h> |
23 | #include "core.h" |
24 | #include "nl80211.h" |
25 | #include "reg.h" |
26 | #include "rdev-ops.h" |
27 | |
28 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
29 | struct genl_info *info, |
30 | struct cfg80211_crypto_settings *settings, |
31 | int cipher_limit); |
32 | |
33 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
34 | struct genl_info *info); |
35 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
36 | struct genl_info *info); |
37 | |
38 | /* the netlink family */ |
39 | static struct genl_family nl80211_fam = { |
40 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ |
41 | .name = NL80211_GENL_NAME, /* have users key off the name instead */ |
42 | .hdrsize = 0, /* no private header */ |
43 | .version = 1, /* no particular meaning now */ |
44 | .maxattr = NL80211_ATTR_MAX, |
45 | .netnsok = true, |
46 | .pre_doit = nl80211_pre_doit, |
47 | .post_doit = nl80211_post_doit, |
48 | }; |
49 | |
50 | /* multicast groups */ |
51 | enum nl80211_multicast_groups { |
52 | NL80211_MCGRP_CONFIG, |
53 | NL80211_MCGRP_SCAN, |
54 | NL80211_MCGRP_REGULATORY, |
55 | NL80211_MCGRP_MLME, |
56 | NL80211_MCGRP_TESTMODE /* keep last - ifdef! */ |
57 | }; |
58 | |
59 | static const struct genl_multicast_group nl80211_mcgrps[] = { |
60 | [NL80211_MCGRP_CONFIG] = { .name = "config", }, |
61 | [NL80211_MCGRP_SCAN] = { .name = "scan", }, |
62 | [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", }, |
63 | [NL80211_MCGRP_MLME] = { .name = "mlme", }, |
64 | #ifdef CONFIG_NL80211_TESTMODE |
65 | [NL80211_MCGRP_TESTMODE] = { .name = "testmode", } |
66 | #endif |
67 | }; |
68 | |
69 | /* returns ERR_PTR values */ |
70 | static struct wireless_dev * |
71 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) |
72 | { |
73 | struct cfg80211_registered_device *rdev; |
74 | struct wireless_dev *result = NULL; |
75 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; |
76 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; |
77 | u64 wdev_id; |
78 | int wiphy_idx = -1; |
79 | int ifidx = -1; |
80 | |
81 | ASSERT_RTNL(); |
82 | |
83 | if (!have_ifidx && !have_wdev_id) |
84 | return ERR_PTR(-EINVAL); |
85 | |
86 | if (have_ifidx) |
87 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
88 | if (have_wdev_id) { |
89 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); |
90 | wiphy_idx = wdev_id >> 32; |
91 | } |
92 | |
93 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
94 | struct wireless_dev *wdev; |
95 | |
96 | if (wiphy_net(&rdev->wiphy) != netns) |
97 | continue; |
98 | |
99 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) |
100 | continue; |
101 | |
102 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
103 | if (have_ifidx && wdev->netdev && |
104 | wdev->netdev->ifindex == ifidx) { |
105 | result = wdev; |
106 | break; |
107 | } |
108 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { |
109 | result = wdev; |
110 | break; |
111 | } |
112 | } |
113 | |
114 | if (result) |
115 | break; |
116 | } |
117 | |
118 | if (result) |
119 | return result; |
120 | return ERR_PTR(-ENODEV); |
121 | } |
122 | |
123 | static struct cfg80211_registered_device * |
124 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
125 | { |
126 | struct cfg80211_registered_device *rdev = NULL, *tmp; |
127 | struct net_device *netdev; |
128 | |
129 | ASSERT_RTNL(); |
130 | |
131 | if (!attrs[NL80211_ATTR_WIPHY] && |
132 | !attrs[NL80211_ATTR_IFINDEX] && |
133 | !attrs[NL80211_ATTR_WDEV]) |
134 | return ERR_PTR(-EINVAL); |
135 | |
136 | if (attrs[NL80211_ATTR_WIPHY]) |
137 | rdev = cfg80211_rdev_by_wiphy_idx( |
138 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
139 | |
140 | if (attrs[NL80211_ATTR_WDEV]) { |
141 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); |
142 | struct wireless_dev *wdev; |
143 | bool found = false; |
144 | |
145 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); |
146 | if (tmp) { |
147 | /* make sure wdev exists */ |
148 | list_for_each_entry(wdev, &tmp->wdev_list, list) { |
149 | if (wdev->identifier != (u32)wdev_id) |
150 | continue; |
151 | found = true; |
152 | break; |
153 | } |
154 | |
155 | if (!found) |
156 | tmp = NULL; |
157 | |
158 | if (rdev && tmp != rdev) |
159 | return ERR_PTR(-EINVAL); |
160 | rdev = tmp; |
161 | } |
162 | } |
163 | |
164 | if (attrs[NL80211_ATTR_IFINDEX]) { |
165 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
166 | netdev = dev_get_by_index(netns, ifindex); |
167 | if (netdev) { |
168 | if (netdev->ieee80211_ptr) |
169 | tmp = wiphy_to_dev( |
170 | netdev->ieee80211_ptr->wiphy); |
171 | else |
172 | tmp = NULL; |
173 | |
174 | dev_put(netdev); |
175 | |
176 | /* not wireless device -- return error */ |
177 | if (!tmp) |
178 | return ERR_PTR(-EINVAL); |
179 | |
180 | /* mismatch -- return error */ |
181 | if (rdev && tmp != rdev) |
182 | return ERR_PTR(-EINVAL); |
183 | |
184 | rdev = tmp; |
185 | } |
186 | } |
187 | |
188 | if (!rdev) |
189 | return ERR_PTR(-ENODEV); |
190 | |
191 | if (netns != wiphy_net(&rdev->wiphy)) |
192 | return ERR_PTR(-ENODEV); |
193 | |
194 | return rdev; |
195 | } |
196 | |
197 | /* |
198 | * This function returns a pointer to the driver |
199 | * that the genl_info item that is passed refers to. |
200 | * |
201 | * The result of this can be a PTR_ERR and hence must |
202 | * be checked with IS_ERR() for errors. |
203 | */ |
204 | static struct cfg80211_registered_device * |
205 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
206 | { |
207 | return __cfg80211_rdev_from_attrs(netns, info->attrs); |
208 | } |
209 | |
210 | /* policy for the attributes */ |
211 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
212 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
213 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, |
214 | .len = 20-1 }, |
215 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
216 | |
217 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
218 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
219 | [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 }, |
220 | [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 }, |
221 | [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 }, |
222 | |
223 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
224 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, |
225 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, |
226 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, |
227 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
228 | |
229 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, |
230 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, |
231 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, |
232 | |
233 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
234 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, |
235 | |
236 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
237 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
238 | .len = WLAN_MAX_KEY_LEN }, |
239 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, |
240 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, |
241 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, |
242 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
243 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
244 | |
245 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, |
246 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, |
247 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, |
248 | .len = IEEE80211_MAX_DATA_LEN }, |
249 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, |
250 | .len = IEEE80211_MAX_DATA_LEN }, |
251 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
252 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, |
253 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, |
254 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, |
255 | .len = NL80211_MAX_SUPP_RATES }, |
256 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
257 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
258 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
259 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
260 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
261 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
262 | |
263 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
264 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, |
265 | |
266 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
267 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, |
268 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, |
269 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
270 | .len = NL80211_MAX_SUPP_RATES }, |
271 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
272 | |
273 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
274 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
275 | |
276 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
277 | |
278 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, |
279 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, |
280 | .len = IEEE80211_MAX_DATA_LEN }, |
281 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
282 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, |
283 | |
284 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, |
285 | .len = IEEE80211_MAX_SSID_LEN }, |
286 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, |
287 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, |
288 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
289 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
290 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
291 | [NL80211_ATTR_STA_FLAGS2] = { |
292 | .len = sizeof(struct nl80211_sta_flag_update), |
293 | }, |
294 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
295 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
296 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, |
297 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
298 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, |
299 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, |
300 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
301 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
302 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
303 | .len = WLAN_PMKID_LEN }, |
304 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
305 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, |
306 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
307 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
308 | .len = IEEE80211_MAX_DATA_LEN }, |
309 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, |
310 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
311 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
312 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
313 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
314 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
315 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, |
316 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
317 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
318 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, |
319 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
320 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
321 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
322 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
323 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
324 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
325 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
326 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
327 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
328 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
329 | .len = IEEE80211_MAX_DATA_LEN }, |
330 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, |
331 | .len = IEEE80211_MAX_DATA_LEN }, |
332 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
333 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
334 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
335 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
336 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, |
337 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, |
338 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, |
339 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, |
340 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
341 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
342 | .len = IEEE80211_MAX_DATA_LEN }, |
343 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
344 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
345 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { |
346 | .len = NL80211_HT_CAPABILITY_LEN |
347 | }, |
348 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
349 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
350 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
351 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
352 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
353 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, |
354 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, |
355 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
356 | [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 }, |
357 | [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 }, |
358 | [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, |
359 | [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, |
360 | [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 }, |
361 | [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, }, |
362 | [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, }, |
363 | [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG }, |
364 | [NL80211_ATTR_VHT_CAPABILITY_MASK] = { |
365 | .len = NL80211_VHT_CAPABILITY_LEN, |
366 | }, |
367 | [NL80211_ATTR_MDID] = { .type = NLA_U16 }, |
368 | [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY, |
369 | .len = IEEE80211_MAX_DATA_LEN }, |
370 | [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 }, |
371 | [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, |
372 | [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, |
373 | [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED }, |
374 | [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 }, |
375 | [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 }, |
376 | [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY }, |
377 | [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY }, |
378 | [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG }, |
379 | }; |
380 | |
381 | /* policy for the key attributes */ |
382 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
383 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
384 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
385 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, |
386 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
387 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
388 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, |
389 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
390 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
391 | }; |
392 | |
393 | /* policy for the key default flags */ |
394 | static const struct nla_policy |
395 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { |
396 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, |
397 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, |
398 | }; |
399 | |
400 | /* policy for WoWLAN attributes */ |
401 | static const struct nla_policy |
402 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { |
403 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, |
404 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, |
405 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, |
406 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, |
407 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
408 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, |
409 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, |
410 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, |
411 | [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, |
412 | }; |
413 | |
414 | static const struct nla_policy |
415 | nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { |
416 | [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, |
417 | [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, |
418 | [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN }, |
419 | [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, |
420 | [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, |
421 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 }, |
422 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { |
423 | .len = sizeof(struct nl80211_wowlan_tcp_data_seq) |
424 | }, |
425 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { |
426 | .len = sizeof(struct nl80211_wowlan_tcp_data_token) |
427 | }, |
428 | [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, |
429 | [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 }, |
430 | [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 }, |
431 | }; |
432 | |
433 | /* policy for coalesce rule attributes */ |
434 | static const struct nla_policy |
435 | nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = { |
436 | [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 }, |
437 | [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 }, |
438 | [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED }, |
439 | }; |
440 | |
441 | /* policy for GTK rekey offload attributes */ |
442 | static const struct nla_policy |
443 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { |
444 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, |
445 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, |
446 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, |
447 | }; |
448 | |
449 | static const struct nla_policy |
450 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { |
451 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
452 | .len = IEEE80211_MAX_SSID_LEN }, |
453 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
454 | }; |
455 | |
456 | static int nl80211_prepare_wdev_dump(struct sk_buff *skb, |
457 | struct netlink_callback *cb, |
458 | struct cfg80211_registered_device **rdev, |
459 | struct wireless_dev **wdev) |
460 | { |
461 | int err; |
462 | |
463 | rtnl_lock(); |
464 | |
465 | if (!cb->args[0]) { |
466 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, |
467 | nl80211_fam.attrbuf, nl80211_fam.maxattr, |
468 | nl80211_policy); |
469 | if (err) |
470 | goto out_unlock; |
471 | |
472 | *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), |
473 | nl80211_fam.attrbuf); |
474 | if (IS_ERR(*wdev)) { |
475 | err = PTR_ERR(*wdev); |
476 | goto out_unlock; |
477 | } |
478 | *rdev = wiphy_to_dev((*wdev)->wiphy); |
479 | /* 0 is the first index - add 1 to parse only once */ |
480 | cb->args[0] = (*rdev)->wiphy_idx + 1; |
481 | cb->args[1] = (*wdev)->identifier; |
482 | } else { |
483 | /* subtract the 1 again here */ |
484 | struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); |
485 | struct wireless_dev *tmp; |
486 | |
487 | if (!wiphy) { |
488 | err = -ENODEV; |
489 | goto out_unlock; |
490 | } |
491 | *rdev = wiphy_to_dev(wiphy); |
492 | *wdev = NULL; |
493 | |
494 | list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { |
495 | if (tmp->identifier == cb->args[1]) { |
496 | *wdev = tmp; |
497 | break; |
498 | } |
499 | } |
500 | |
501 | if (!*wdev) { |
502 | err = -ENODEV; |
503 | goto out_unlock; |
504 | } |
505 | } |
506 | |
507 | return 0; |
508 | out_unlock: |
509 | rtnl_unlock(); |
510 | return err; |
511 | } |
512 | |
513 | static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev) |
514 | { |
515 | rtnl_unlock(); |
516 | } |
517 | |
518 | /* IE validation */ |
519 | static bool is_valid_ie_attr(const struct nlattr *attr) |
520 | { |
521 | const u8 *pos; |
522 | int len; |
523 | |
524 | if (!attr) |
525 | return true; |
526 | |
527 | pos = nla_data(attr); |
528 | len = nla_len(attr); |
529 | |
530 | while (len) { |
531 | u8 elemlen; |
532 | |
533 | if (len < 2) |
534 | return false; |
535 | len -= 2; |
536 | |
537 | elemlen = pos[1]; |
538 | if (elemlen > len) |
539 | return false; |
540 | |
541 | len -= elemlen; |
542 | pos += 2 + elemlen; |
543 | } |
544 | |
545 | return true; |
546 | } |
547 | |
548 | /* message building helper */ |
549 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
550 | int flags, u8 cmd) |
551 | { |
552 | /* since there is no private header just add the generic one */ |
553 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
554 | } |
555 | |
556 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
557 | struct ieee80211_channel *chan, |
558 | bool large) |
559 | { |
560 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
561 | chan->center_freq)) |
562 | goto nla_put_failure; |
563 | |
564 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
565 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) |
566 | goto nla_put_failure; |
567 | if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) && |
568 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN)) |
569 | goto nla_put_failure; |
570 | if ((chan->flags & IEEE80211_CHAN_NO_IBSS) && |
571 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS)) |
572 | goto nla_put_failure; |
573 | if (chan->flags & IEEE80211_CHAN_RADAR) { |
574 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) |
575 | goto nla_put_failure; |
576 | if (large) { |
577 | u32 time; |
578 | |
579 | time = elapsed_jiffies_msecs(chan->dfs_state_entered); |
580 | |
581 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE, |
582 | chan->dfs_state)) |
583 | goto nla_put_failure; |
584 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, |
585 | time)) |
586 | goto nla_put_failure; |
587 | } |
588 | } |
589 | |
590 | if (large) { |
591 | if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) && |
592 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS)) |
593 | goto nla_put_failure; |
594 | if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) && |
595 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS)) |
596 | goto nla_put_failure; |
597 | if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) && |
598 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ)) |
599 | goto nla_put_failure; |
600 | if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && |
601 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) |
602 | goto nla_put_failure; |
603 | } |
604 | |
605 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
606 | DBM_TO_MBM(chan->max_power))) |
607 | goto nla_put_failure; |
608 | |
609 | return 0; |
610 | |
611 | nla_put_failure: |
612 | return -ENOBUFS; |
613 | } |
614 | |
615 | /* netlink command implementations */ |
616 | |
617 | struct key_parse { |
618 | struct key_params p; |
619 | int idx; |
620 | int type; |
621 | bool def, defmgmt; |
622 | bool def_uni, def_multi; |
623 | }; |
624 | |
625 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) |
626 | { |
627 | struct nlattr *tb[NL80211_KEY_MAX + 1]; |
628 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, |
629 | nl80211_key_policy); |
630 | if (err) |
631 | return err; |
632 | |
633 | k->def = !!tb[NL80211_KEY_DEFAULT]; |
634 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; |
635 | |
636 | if (k->def) { |
637 | k->def_uni = true; |
638 | k->def_multi = true; |
639 | } |
640 | if (k->defmgmt) |
641 | k->def_multi = true; |
642 | |
643 | if (tb[NL80211_KEY_IDX]) |
644 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); |
645 | |
646 | if (tb[NL80211_KEY_DATA]) { |
647 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); |
648 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); |
649 | } |
650 | |
651 | if (tb[NL80211_KEY_SEQ]) { |
652 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); |
653 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); |
654 | } |
655 | |
656 | if (tb[NL80211_KEY_CIPHER]) |
657 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); |
658 | |
659 | if (tb[NL80211_KEY_TYPE]) { |
660 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); |
661 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) |
662 | return -EINVAL; |
663 | } |
664 | |
665 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
666 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; |
667 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
668 | tb[NL80211_KEY_DEFAULT_TYPES], |
669 | nl80211_key_default_policy); |
670 | if (err) |
671 | return err; |
672 | |
673 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; |
674 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; |
675 | } |
676 | |
677 | return 0; |
678 | } |
679 | |
680 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) |
681 | { |
682 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { |
683 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); |
684 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); |
685 | } |
686 | |
687 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { |
688 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); |
689 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); |
690 | } |
691 | |
692 | if (info->attrs[NL80211_ATTR_KEY_IDX]) |
693 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
694 | |
695 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) |
696 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); |
697 | |
698 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; |
699 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; |
700 | |
701 | if (k->def) { |
702 | k->def_uni = true; |
703 | k->def_multi = true; |
704 | } |
705 | if (k->defmgmt) |
706 | k->def_multi = true; |
707 | |
708 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
709 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); |
710 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) |
711 | return -EINVAL; |
712 | } |
713 | |
714 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
715 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; |
716 | int err = nla_parse_nested( |
717 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
718 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], |
719 | nl80211_key_default_policy); |
720 | if (err) |
721 | return err; |
722 | |
723 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; |
724 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; |
725 | } |
726 | |
727 | return 0; |
728 | } |
729 | |
730 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) |
731 | { |
732 | int err; |
733 | |
734 | memset(k, 0, sizeof(*k)); |
735 | k->idx = -1; |
736 | k->type = -1; |
737 | |
738 | if (info->attrs[NL80211_ATTR_KEY]) |
739 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); |
740 | else |
741 | err = nl80211_parse_key_old(info, k); |
742 | |
743 | if (err) |
744 | return err; |
745 | |
746 | if (k->def && k->defmgmt) |
747 | return -EINVAL; |
748 | |
749 | if (k->defmgmt) { |
750 | if (k->def_uni || !k->def_multi) |
751 | return -EINVAL; |
752 | } |
753 | |
754 | if (k->idx != -1) { |
755 | if (k->defmgmt) { |
756 | if (k->idx < 4 || k->idx > 5) |
757 | return -EINVAL; |
758 | } else if (k->def) { |
759 | if (k->idx < 0 || k->idx > 3) |
760 | return -EINVAL; |
761 | } else { |
762 | if (k->idx < 0 || k->idx > 5) |
763 | return -EINVAL; |
764 | } |
765 | } |
766 | |
767 | return 0; |
768 | } |
769 | |
770 | static struct cfg80211_cached_keys * |
771 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, |
772 | struct nlattr *keys, bool *no_ht) |
773 | { |
774 | struct key_parse parse; |
775 | struct nlattr *key; |
776 | struct cfg80211_cached_keys *result; |
777 | int rem, err, def = 0; |
778 | |
779 | result = kzalloc(sizeof(*result), GFP_KERNEL); |
780 | if (!result) |
781 | return ERR_PTR(-ENOMEM); |
782 | |
783 | result->def = -1; |
784 | result->defmgmt = -1; |
785 | |
786 | nla_for_each_nested(key, keys, rem) { |
787 | memset(&parse, 0, sizeof(parse)); |
788 | parse.idx = -1; |
789 | |
790 | err = nl80211_parse_key_new(key, &parse); |
791 | if (err) |
792 | goto error; |
793 | err = -EINVAL; |
794 | if (!parse.p.key) |
795 | goto error; |
796 | if (parse.idx < 0 || parse.idx > 4) |
797 | goto error; |
798 | if (parse.def) { |
799 | if (def) |
800 | goto error; |
801 | def = 1; |
802 | result->def = parse.idx; |
803 | if (!parse.def_uni || !parse.def_multi) |
804 | goto error; |
805 | } else if (parse.defmgmt) |
806 | goto error; |
807 | err = cfg80211_validate_key_settings(rdev, &parse.p, |
808 | parse.idx, false, NULL); |
809 | if (err) |
810 | goto error; |
811 | result->params[parse.idx].cipher = parse.p.cipher; |
812 | result->params[parse.idx].key_len = parse.p.key_len; |
813 | result->params[parse.idx].key = result->data[parse.idx]; |
814 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); |
815 | |
816 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || |
817 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { |
818 | if (no_ht) |
819 | *no_ht = true; |
820 | } |
821 | } |
822 | |
823 | return result; |
824 | error: |
825 | kfree(result); |
826 | return ERR_PTR(err); |
827 | } |
828 | |
829 | static int nl80211_key_allowed(struct wireless_dev *wdev) |
830 | { |
831 | ASSERT_WDEV_LOCK(wdev); |
832 | |
833 | switch (wdev->iftype) { |
834 | case NL80211_IFTYPE_AP: |
835 | case NL80211_IFTYPE_AP_VLAN: |
836 | case NL80211_IFTYPE_P2P_GO: |
837 | case NL80211_IFTYPE_MESH_POINT: |
838 | break; |
839 | case NL80211_IFTYPE_ADHOC: |
840 | case NL80211_IFTYPE_STATION: |
841 | case NL80211_IFTYPE_P2P_CLIENT: |
842 | if (!wdev->current_bss) |
843 | return -ENOLINK; |
844 | break; |
845 | default: |
846 | return -EINVAL; |
847 | } |
848 | |
849 | return 0; |
850 | } |
851 | |
852 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
853 | { |
854 | struct nlattr *nl_modes = nla_nest_start(msg, attr); |
855 | int i; |
856 | |
857 | if (!nl_modes) |
858 | goto nla_put_failure; |
859 | |
860 | i = 0; |
861 | while (ifmodes) { |
862 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
863 | goto nla_put_failure; |
864 | ifmodes >>= 1; |
865 | i++; |
866 | } |
867 | |
868 | nla_nest_end(msg, nl_modes); |
869 | return 0; |
870 | |
871 | nla_put_failure: |
872 | return -ENOBUFS; |
873 | } |
874 | |
875 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, |
876 | struct sk_buff *msg, |
877 | bool large) |
878 | { |
879 | struct nlattr *nl_combis; |
880 | int i, j; |
881 | |
882 | nl_combis = nla_nest_start(msg, |
883 | NL80211_ATTR_INTERFACE_COMBINATIONS); |
884 | if (!nl_combis) |
885 | goto nla_put_failure; |
886 | |
887 | for (i = 0; i < wiphy->n_iface_combinations; i++) { |
888 | const struct ieee80211_iface_combination *c; |
889 | struct nlattr *nl_combi, *nl_limits; |
890 | |
891 | c = &wiphy->iface_combinations[i]; |
892 | |
893 | nl_combi = nla_nest_start(msg, i + 1); |
894 | if (!nl_combi) |
895 | goto nla_put_failure; |
896 | |
897 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); |
898 | if (!nl_limits) |
899 | goto nla_put_failure; |
900 | |
901 | for (j = 0; j < c->n_limits; j++) { |
902 | struct nlattr *nl_limit; |
903 | |
904 | nl_limit = nla_nest_start(msg, j + 1); |
905 | if (!nl_limit) |
906 | goto nla_put_failure; |
907 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
908 | c->limits[j].max)) |
909 | goto nla_put_failure; |
910 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
911 | c->limits[j].types)) |
912 | goto nla_put_failure; |
913 | nla_nest_end(msg, nl_limit); |
914 | } |
915 | |
916 | nla_nest_end(msg, nl_limits); |
917 | |
918 | if (c->beacon_int_infra_match && |
919 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) |
920 | goto nla_put_failure; |
921 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, |
922 | c->num_different_channels) || |
923 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, |
924 | c->max_interfaces)) |
925 | goto nla_put_failure; |
926 | if (large && |
927 | nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, |
928 | c->radar_detect_widths)) |
929 | goto nla_put_failure; |
930 | |
931 | nla_nest_end(msg, nl_combi); |
932 | } |
933 | |
934 | nla_nest_end(msg, nl_combis); |
935 | |
936 | return 0; |
937 | nla_put_failure: |
938 | return -ENOBUFS; |
939 | } |
940 | |
941 | #ifdef CONFIG_PM |
942 | static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, |
943 | struct sk_buff *msg) |
944 | { |
945 | const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp; |
946 | struct nlattr *nl_tcp; |
947 | |
948 | if (!tcp) |
949 | return 0; |
950 | |
951 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); |
952 | if (!nl_tcp) |
953 | return -ENOBUFS; |
954 | |
955 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, |
956 | tcp->data_payload_max)) |
957 | return -ENOBUFS; |
958 | |
959 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, |
960 | tcp->data_payload_max)) |
961 | return -ENOBUFS; |
962 | |
963 | if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) |
964 | return -ENOBUFS; |
965 | |
966 | if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, |
967 | sizeof(*tcp->tok), tcp->tok)) |
968 | return -ENOBUFS; |
969 | |
970 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, |
971 | tcp->data_interval_max)) |
972 | return -ENOBUFS; |
973 | |
974 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, |
975 | tcp->wake_payload_max)) |
976 | return -ENOBUFS; |
977 | |
978 | nla_nest_end(msg, nl_tcp); |
979 | return 0; |
980 | } |
981 | |
982 | static int nl80211_send_wowlan(struct sk_buff *msg, |
983 | struct cfg80211_registered_device *dev, |
984 | bool large) |
985 | { |
986 | struct nlattr *nl_wowlan; |
987 | |
988 | if (!dev->wiphy.wowlan) |
989 | return 0; |
990 | |
991 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); |
992 | if (!nl_wowlan) |
993 | return -ENOBUFS; |
994 | |
995 | if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && |
996 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
997 | ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && |
998 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
999 | ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && |
1000 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
1001 | ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && |
1002 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || |
1003 | ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && |
1004 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
1005 | ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && |
1006 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
1007 | ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && |
1008 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
1009 | ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && |
1010 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
1011 | return -ENOBUFS; |
1012 | |
1013 | if (dev->wiphy.wowlan->n_patterns) { |
1014 | struct nl80211_pattern_support pat = { |
1015 | .max_patterns = dev->wiphy.wowlan->n_patterns, |
1016 | .min_pattern_len = dev->wiphy.wowlan->pattern_min_len, |
1017 | .max_pattern_len = dev->wiphy.wowlan->pattern_max_len, |
1018 | .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset, |
1019 | }; |
1020 | |
1021 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1022 | sizeof(pat), &pat)) |
1023 | return -ENOBUFS; |
1024 | } |
1025 | |
1026 | if (large && nl80211_send_wowlan_tcp_caps(dev, msg)) |
1027 | return -ENOBUFS; |
1028 | |
1029 | nla_nest_end(msg, nl_wowlan); |
1030 | |
1031 | return 0; |
1032 | } |
1033 | #endif |
1034 | |
1035 | static int nl80211_send_coalesce(struct sk_buff *msg, |
1036 | struct cfg80211_registered_device *dev) |
1037 | { |
1038 | struct nl80211_coalesce_rule_support rule; |
1039 | |
1040 | if (!dev->wiphy.coalesce) |
1041 | return 0; |
1042 | |
1043 | rule.max_rules = dev->wiphy.coalesce->n_rules; |
1044 | rule.max_delay = dev->wiphy.coalesce->max_delay; |
1045 | rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns; |
1046 | rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len; |
1047 | rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len; |
1048 | rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset; |
1049 | |
1050 | if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule)) |
1051 | return -ENOBUFS; |
1052 | |
1053 | return 0; |
1054 | } |
1055 | |
1056 | static int nl80211_send_band_rateinfo(struct sk_buff *msg, |
1057 | struct ieee80211_supported_band *sband) |
1058 | { |
1059 | struct nlattr *nl_rates, *nl_rate; |
1060 | struct ieee80211_rate *rate; |
1061 | int i; |
1062 | |
1063 | /* add HT info */ |
1064 | if (sband->ht_cap.ht_supported && |
1065 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, |
1066 | sizeof(sband->ht_cap.mcs), |
1067 | &sband->ht_cap.mcs) || |
1068 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, |
1069 | sband->ht_cap.cap) || |
1070 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, |
1071 | sband->ht_cap.ampdu_factor) || |
1072 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, |
1073 | sband->ht_cap.ampdu_density))) |
1074 | return -ENOBUFS; |
1075 | |
1076 | /* add VHT info */ |
1077 | if (sband->vht_cap.vht_supported && |
1078 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, |
1079 | sizeof(sband->vht_cap.vht_mcs), |
1080 | &sband->vht_cap.vht_mcs) || |
1081 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, |
1082 | sband->vht_cap.cap))) |
1083 | return -ENOBUFS; |
1084 | |
1085 | /* add bitrates */ |
1086 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); |
1087 | if (!nl_rates) |
1088 | return -ENOBUFS; |
1089 | |
1090 | for (i = 0; i < sband->n_bitrates; i++) { |
1091 | nl_rate = nla_nest_start(msg, i); |
1092 | if (!nl_rate) |
1093 | return -ENOBUFS; |
1094 | |
1095 | rate = &sband->bitrates[i]; |
1096 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, |
1097 | rate->bitrate)) |
1098 | return -ENOBUFS; |
1099 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && |
1100 | nla_put_flag(msg, |
1101 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) |
1102 | return -ENOBUFS; |
1103 | |
1104 | nla_nest_end(msg, nl_rate); |
1105 | } |
1106 | |
1107 | nla_nest_end(msg, nl_rates); |
1108 | |
1109 | return 0; |
1110 | } |
1111 | |
1112 | static int |
1113 | nl80211_send_mgmt_stypes(struct sk_buff *msg, |
1114 | const struct ieee80211_txrx_stypes *mgmt_stypes) |
1115 | { |
1116 | u16 stypes; |
1117 | struct nlattr *nl_ftypes, *nl_ifs; |
1118 | enum nl80211_iftype ift; |
1119 | int i; |
1120 | |
1121 | if (!mgmt_stypes) |
1122 | return 0; |
1123 | |
1124 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); |
1125 | if (!nl_ifs) |
1126 | return -ENOBUFS; |
1127 | |
1128 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1129 | nl_ftypes = nla_nest_start(msg, ift); |
1130 | if (!nl_ftypes) |
1131 | return -ENOBUFS; |
1132 | i = 0; |
1133 | stypes = mgmt_stypes[ift].tx; |
1134 | while (stypes) { |
1135 | if ((stypes & 1) && |
1136 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, |
1137 | (i << 4) | IEEE80211_FTYPE_MGMT)) |
1138 | return -ENOBUFS; |
1139 | stypes >>= 1; |
1140 | i++; |
1141 | } |
1142 | nla_nest_end(msg, nl_ftypes); |
1143 | } |
1144 | |
1145 | nla_nest_end(msg, nl_ifs); |
1146 | |
1147 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1148 | if (!nl_ifs) |
1149 | return -ENOBUFS; |
1150 | |
1151 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1152 | nl_ftypes = nla_nest_start(msg, ift); |
1153 | if (!nl_ftypes) |
1154 | return -ENOBUFS; |
1155 | i = 0; |
1156 | stypes = mgmt_stypes[ift].rx; |
1157 | while (stypes) { |
1158 | if ((stypes & 1) && |
1159 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, |
1160 | (i << 4) | IEEE80211_FTYPE_MGMT)) |
1161 | return -ENOBUFS; |
1162 | stypes >>= 1; |
1163 | i++; |
1164 | } |
1165 | nla_nest_end(msg, nl_ftypes); |
1166 | } |
1167 | nla_nest_end(msg, nl_ifs); |
1168 | |
1169 | return 0; |
1170 | } |
1171 | |
1172 | struct nl80211_dump_wiphy_state { |
1173 | s64 filter_wiphy; |
1174 | long start; |
1175 | long split_start, band_start, chan_start; |
1176 | bool split; |
1177 | }; |
1178 | |
1179 | static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, |
1180 | struct sk_buff *msg, u32 portid, u32 seq, |
1181 | int flags, struct nl80211_dump_wiphy_state *state) |
1182 | { |
1183 | void *hdr; |
1184 | struct nlattr *nl_bands, *nl_band; |
1185 | struct nlattr *nl_freqs, *nl_freq; |
1186 | struct nlattr *nl_cmds; |
1187 | enum ieee80211_band band; |
1188 | struct ieee80211_channel *chan; |
1189 | int i; |
1190 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
1191 | dev->wiphy.mgmt_stypes; |
1192 | u32 features; |
1193 | |
1194 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY); |
1195 | if (!hdr) |
1196 | return -ENOBUFS; |
1197 | |
1198 | if (WARN_ON(!state)) |
1199 | return -EINVAL; |
1200 | |
1201 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) || |
1202 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, |
1203 | wiphy_name(&dev->wiphy)) || |
1204 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
1205 | cfg80211_rdev_list_generation)) |
1206 | goto nla_put_failure; |
1207 | |
1208 | switch (state->split_start) { |
1209 | case 0: |
1210 | if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
1211 | dev->wiphy.retry_short) || |
1212 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, |
1213 | dev->wiphy.retry_long) || |
1214 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, |
1215 | dev->wiphy.frag_threshold) || |
1216 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, |
1217 | dev->wiphy.rts_threshold) || |
1218 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
1219 | dev->wiphy.coverage_class) || |
1220 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
1221 | dev->wiphy.max_scan_ssids) || |
1222 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, |
1223 | dev->wiphy.max_sched_scan_ssids) || |
1224 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
1225 | dev->wiphy.max_scan_ie_len) || |
1226 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, |
1227 | dev->wiphy.max_sched_scan_ie_len) || |
1228 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, |
1229 | dev->wiphy.max_match_sets)) |
1230 | goto nla_put_failure; |
1231 | |
1232 | if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && |
1233 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) |
1234 | goto nla_put_failure; |
1235 | if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && |
1236 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) |
1237 | goto nla_put_failure; |
1238 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && |
1239 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) |
1240 | goto nla_put_failure; |
1241 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && |
1242 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) |
1243 | goto nla_put_failure; |
1244 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && |
1245 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) |
1246 | goto nla_put_failure; |
1247 | if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && |
1248 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) |
1249 | goto nla_put_failure; |
1250 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && |
1251 | nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ)) |
1252 | goto nla_put_failure; |
1253 | |
1254 | state->split_start++; |
1255 | if (state->split) |
1256 | break; |
1257 | case 1: |
1258 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, |
1259 | sizeof(u32) * dev->wiphy.n_cipher_suites, |
1260 | dev->wiphy.cipher_suites)) |
1261 | goto nla_put_failure; |
1262 | |
1263 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
1264 | dev->wiphy.max_num_pmkids)) |
1265 | goto nla_put_failure; |
1266 | |
1267 | if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && |
1268 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) |
1269 | goto nla_put_failure; |
1270 | |
1271 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, |
1272 | dev->wiphy.available_antennas_tx) || |
1273 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, |
1274 | dev->wiphy.available_antennas_rx)) |
1275 | goto nla_put_failure; |
1276 | |
1277 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && |
1278 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, |
1279 | dev->wiphy.probe_resp_offload)) |
1280 | goto nla_put_failure; |
1281 | |
1282 | if ((dev->wiphy.available_antennas_tx || |
1283 | dev->wiphy.available_antennas_rx) && |
1284 | dev->ops->get_antenna) { |
1285 | u32 tx_ant = 0, rx_ant = 0; |
1286 | int res; |
1287 | res = rdev_get_antenna(dev, &tx_ant, &rx_ant); |
1288 | if (!res) { |
1289 | if (nla_put_u32(msg, |
1290 | NL80211_ATTR_WIPHY_ANTENNA_TX, |
1291 | tx_ant) || |
1292 | nla_put_u32(msg, |
1293 | NL80211_ATTR_WIPHY_ANTENNA_RX, |
1294 | rx_ant)) |
1295 | goto nla_put_failure; |
1296 | } |
1297 | } |
1298 | |
1299 | state->split_start++; |
1300 | if (state->split) |
1301 | break; |
1302 | case 2: |
1303 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, |
1304 | dev->wiphy.interface_modes)) |
1305 | goto nla_put_failure; |
1306 | state->split_start++; |
1307 | if (state->split) |
1308 | break; |
1309 | case 3: |
1310 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
1311 | if (!nl_bands) |
1312 | goto nla_put_failure; |
1313 | |
1314 | for (band = state->band_start; |
1315 | band < IEEE80211_NUM_BANDS; band++) { |
1316 | struct ieee80211_supported_band *sband; |
1317 | |
1318 | sband = dev->wiphy.bands[band]; |
1319 | |
1320 | if (!sband) |
1321 | continue; |
1322 | |
1323 | nl_band = nla_nest_start(msg, band); |
1324 | if (!nl_band) |
1325 | goto nla_put_failure; |
1326 | |
1327 | switch (state->chan_start) { |
1328 | case 0: |
1329 | if (nl80211_send_band_rateinfo(msg, sband)) |
1330 | goto nla_put_failure; |
1331 | state->chan_start++; |
1332 | if (state->split) |
1333 | break; |
1334 | default: |
1335 | /* add frequencies */ |
1336 | nl_freqs = nla_nest_start( |
1337 | msg, NL80211_BAND_ATTR_FREQS); |
1338 | if (!nl_freqs) |
1339 | goto nla_put_failure; |
1340 | |
1341 | for (i = state->chan_start - 1; |
1342 | i < sband->n_channels; |
1343 | i++) { |
1344 | nl_freq = nla_nest_start(msg, i); |
1345 | if (!nl_freq) |
1346 | goto nla_put_failure; |
1347 | |
1348 | chan = &sband->channels[i]; |
1349 | |
1350 | if (nl80211_msg_put_channel( |
1351 | msg, chan, |
1352 | state->split)) |
1353 | goto nla_put_failure; |
1354 | |
1355 | nla_nest_end(msg, nl_freq); |
1356 | if (state->split) |
1357 | break; |
1358 | } |
1359 | if (i < sband->n_channels) |
1360 | state->chan_start = i + 2; |
1361 | else |
1362 | state->chan_start = 0; |
1363 | nla_nest_end(msg, nl_freqs); |
1364 | } |
1365 | |
1366 | nla_nest_end(msg, nl_band); |
1367 | |
1368 | if (state->split) { |
1369 | /* start again here */ |
1370 | if (state->chan_start) |
1371 | band--; |
1372 | break; |
1373 | } |
1374 | } |
1375 | nla_nest_end(msg, nl_bands); |
1376 | |
1377 | if (band < IEEE80211_NUM_BANDS) |
1378 | state->band_start = band + 1; |
1379 | else |
1380 | state->band_start = 0; |
1381 | |
1382 | /* if bands & channels are done, continue outside */ |
1383 | if (state->band_start == 0 && state->chan_start == 0) |
1384 | state->split_start++; |
1385 | if (state->split) |
1386 | break; |
1387 | case 4: |
1388 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
1389 | if (!nl_cmds) |
1390 | goto nla_put_failure; |
1391 | |
1392 | i = 0; |
1393 | #define CMD(op, n) \ |
1394 | do { \ |
1395 | if (dev->ops->op) { \ |
1396 | i++; \ |
1397 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ |
1398 | goto nla_put_failure; \ |
1399 | } \ |
1400 | } while (0) |
1401 | |
1402 | CMD(add_virtual_intf, NEW_INTERFACE); |
1403 | CMD(change_virtual_intf, SET_INTERFACE); |
1404 | CMD(add_key, NEW_KEY); |
1405 | CMD(start_ap, START_AP); |
1406 | CMD(add_station, NEW_STATION); |
1407 | CMD(add_mpath, NEW_MPATH); |
1408 | CMD(update_mesh_config, SET_MESH_CONFIG); |
1409 | CMD(change_bss, SET_BSS); |
1410 | CMD(auth, AUTHENTICATE); |
1411 | CMD(assoc, ASSOCIATE); |
1412 | CMD(deauth, DEAUTHENTICATE); |
1413 | CMD(disassoc, DISASSOCIATE); |
1414 | CMD(join_ibss, JOIN_IBSS); |
1415 | CMD(join_mesh, JOIN_MESH); |
1416 | CMD(set_pmksa, SET_PMKSA); |
1417 | CMD(del_pmksa, DEL_PMKSA); |
1418 | CMD(flush_pmksa, FLUSH_PMKSA); |
1419 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
1420 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
1421 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
1422 | CMD(mgmt_tx, FRAME); |
1423 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
1424 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
1425 | i++; |
1426 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) |
1427 | goto nla_put_failure; |
1428 | } |
1429 | if (dev->ops->set_monitor_channel || dev->ops->start_ap || |
1430 | dev->ops->join_mesh) { |
1431 | i++; |
1432 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) |
1433 | goto nla_put_failure; |
1434 | } |
1435 | CMD(set_wds_peer, SET_WDS_PEER); |
1436 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
1437 | CMD(tdls_mgmt, TDLS_MGMT); |
1438 | CMD(tdls_oper, TDLS_OPER); |
1439 | } |
1440 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
1441 | CMD(sched_scan_start, START_SCHED_SCAN); |
1442 | CMD(probe_client, PROBE_CLIENT); |
1443 | CMD(set_noack_map, SET_NOACK_MAP); |
1444 | if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
1445 | i++; |
1446 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) |
1447 | goto nla_put_failure; |
1448 | } |
1449 | CMD(start_p2p_device, START_P2P_DEVICE); |
1450 | CMD(set_mcast_rate, SET_MCAST_RATE); |
1451 | if (state->split) { |
1452 | CMD(crit_proto_start, CRIT_PROTOCOL_START); |
1453 | CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); |
1454 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) |
1455 | CMD(channel_switch, CHANNEL_SWITCH); |
1456 | } |
1457 | |
1458 | #ifdef CONFIG_NL80211_TESTMODE |
1459 | CMD(testmode_cmd, TESTMODE); |
1460 | #endif |
1461 | |
1462 | #undef CMD |
1463 | |
1464 | if (dev->ops->connect || dev->ops->auth) { |
1465 | i++; |
1466 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) |
1467 | goto nla_put_failure; |
1468 | } |
1469 | |
1470 | if (dev->ops->disconnect || dev->ops->deauth) { |
1471 | i++; |
1472 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) |
1473 | goto nla_put_failure; |
1474 | } |
1475 | |
1476 | nla_nest_end(msg, nl_cmds); |
1477 | state->split_start++; |
1478 | if (state->split) |
1479 | break; |
1480 | case 5: |
1481 | if (dev->ops->remain_on_channel && |
1482 | (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && |
1483 | nla_put_u32(msg, |
1484 | NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, |
1485 | dev->wiphy.max_remain_on_channel_duration)) |
1486 | goto nla_put_failure; |
1487 | |
1488 | if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
1489 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) |
1490 | goto nla_put_failure; |
1491 | |
1492 | if (nl80211_send_mgmt_stypes(msg, mgmt_stypes)) |
1493 | goto nla_put_failure; |
1494 | state->split_start++; |
1495 | if (state->split) |
1496 | break; |
1497 | case 6: |
1498 | #ifdef CONFIG_PM |
1499 | if (nl80211_send_wowlan(msg, dev, state->split)) |
1500 | goto nla_put_failure; |
1501 | state->split_start++; |
1502 | if (state->split) |
1503 | break; |
1504 | #else |
1505 | state->split_start++; |
1506 | #endif |
1507 | case 7: |
1508 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, |
1509 | dev->wiphy.software_iftypes)) |
1510 | goto nla_put_failure; |
1511 | |
1512 | if (nl80211_put_iface_combinations(&dev->wiphy, msg, |
1513 | state->split)) |
1514 | goto nla_put_failure; |
1515 | |
1516 | state->split_start++; |
1517 | if (state->split) |
1518 | break; |
1519 | case 8: |
1520 | if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
1521 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, |
1522 | dev->wiphy.ap_sme_capa)) |
1523 | goto nla_put_failure; |
1524 | |
1525 | features = dev->wiphy.features; |
1526 | /* |
1527 | * We can only add the per-channel limit information if the |
1528 | * dump is split, otherwise it makes it too big. Therefore |
1529 | * only advertise it in that case. |
1530 | */ |
1531 | if (state->split) |
1532 | features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS; |
1533 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features)) |
1534 | goto nla_put_failure; |
1535 | |
1536 | if (dev->wiphy.ht_capa_mod_mask && |
1537 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, |
1538 | sizeof(*dev->wiphy.ht_capa_mod_mask), |
1539 | dev->wiphy.ht_capa_mod_mask)) |
1540 | goto nla_put_failure; |
1541 | |
1542 | if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && |
1543 | dev->wiphy.max_acl_mac_addrs && |
1544 | nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, |
1545 | dev->wiphy.max_acl_mac_addrs)) |
1546 | goto nla_put_failure; |
1547 | |
1548 | /* |
1549 | * Any information below this point is only available to |
1550 | * applications that can deal with it being split. This |
1551 | * helps ensure that newly added capabilities don't break |
1552 | * older tools by overrunning their buffers. |
1553 | * |
1554 | * We still increment split_start so that in the split |
1555 | * case we'll continue with more data in the next round, |
1556 | * but break unconditionally so unsplit data stops here. |
1557 | */ |
1558 | state->split_start++; |
1559 | break; |
1560 | case 9: |
1561 | if (dev->wiphy.extended_capabilities && |
1562 | (nla_put(msg, NL80211_ATTR_EXT_CAPA, |
1563 | dev->wiphy.extended_capabilities_len, |
1564 | dev->wiphy.extended_capabilities) || |
1565 | nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, |
1566 | dev->wiphy.extended_capabilities_len, |
1567 | dev->wiphy.extended_capabilities_mask))) |
1568 | goto nla_put_failure; |
1569 | |
1570 | if (dev->wiphy.vht_capa_mod_mask && |
1571 | nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, |
1572 | sizeof(*dev->wiphy.vht_capa_mod_mask), |
1573 | dev->wiphy.vht_capa_mod_mask)) |
1574 | goto nla_put_failure; |
1575 | |
1576 | state->split_start++; |
1577 | break; |
1578 | case 10: |
1579 | if (nl80211_send_coalesce(msg, dev)) |
1580 | goto nla_put_failure; |
1581 | |
1582 | /* done */ |
1583 | state->split_start = 0; |
1584 | break; |
1585 | } |
1586 | return genlmsg_end(msg, hdr); |
1587 | |
1588 | nla_put_failure: |
1589 | genlmsg_cancel(msg, hdr); |
1590 | return -EMSGSIZE; |
1591 | } |
1592 | |
1593 | static int nl80211_dump_wiphy_parse(struct sk_buff *skb, |
1594 | struct netlink_callback *cb, |
1595 | struct nl80211_dump_wiphy_state *state) |
1596 | { |
1597 | struct nlattr **tb = nl80211_fam.attrbuf; |
1598 | int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, |
1599 | tb, nl80211_fam.maxattr, nl80211_policy); |
1600 | /* ignore parse errors for backward compatibility */ |
1601 | if (ret) |
1602 | return 0; |
1603 | |
1604 | state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP]; |
1605 | if (tb[NL80211_ATTR_WIPHY]) |
1606 | state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); |
1607 | if (tb[NL80211_ATTR_WDEV]) |
1608 | state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32; |
1609 | if (tb[NL80211_ATTR_IFINDEX]) { |
1610 | struct net_device *netdev; |
1611 | struct cfg80211_registered_device *rdev; |
1612 | int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); |
1613 | |
1614 | netdev = dev_get_by_index(sock_net(skb->sk), ifidx); |
1615 | if (!netdev) |
1616 | return -ENODEV; |
1617 | if (netdev->ieee80211_ptr) { |
1618 | rdev = wiphy_to_dev( |
1619 | netdev->ieee80211_ptr->wiphy); |
1620 | state->filter_wiphy = rdev->wiphy_idx; |
1621 | } |
1622 | dev_put(netdev); |
1623 | } |
1624 | |
1625 | return 0; |
1626 | } |
1627 | |
1628 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) |
1629 | { |
1630 | int idx = 0, ret; |
1631 | struct nl80211_dump_wiphy_state *state = (void *)cb->args[0]; |
1632 | struct cfg80211_registered_device *dev; |
1633 | |
1634 | rtnl_lock(); |
1635 | if (!state) { |
1636 | state = kzalloc(sizeof(*state), GFP_KERNEL); |
1637 | if (!state) { |
1638 | rtnl_unlock(); |
1639 | return -ENOMEM; |
1640 | } |
1641 | state->filter_wiphy = -1; |
1642 | ret = nl80211_dump_wiphy_parse(skb, cb, state); |
1643 | if (ret) { |
1644 | kfree(state); |
1645 | rtnl_unlock(); |
1646 | return ret; |
1647 | } |
1648 | cb->args[0] = (long)state; |
1649 | } |
1650 | |
1651 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
1652 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
1653 | continue; |
1654 | if (++idx <= state->start) |
1655 | continue; |
1656 | if (state->filter_wiphy != -1 && |
1657 | state->filter_wiphy != dev->wiphy_idx) |
1658 | continue; |
1659 | /* attempt to fit multiple wiphy data chunks into the skb */ |
1660 | do { |
1661 | ret = nl80211_send_wiphy(dev, skb, |
1662 | NETLINK_CB(cb->skb).portid, |
1663 | cb->nlh->nlmsg_seq, |
1664 | NLM_F_MULTI, state); |
1665 | if (ret < 0) { |
1666 | /* |
1667 | * If sending the wiphy data didn't fit (ENOBUFS |
1668 | * or EMSGSIZE returned), this SKB is still |
1669 | * empty (so it's not too big because another |
1670 | * wiphy dataset is already in the skb) and |
1671 | * we've not tried to adjust the dump allocation |
1672 | * yet ... then adjust the alloc size to be |
1673 | * bigger, and return 1 but with the empty skb. |
1674 | * This results in an empty message being RX'ed |
1675 | * in userspace, but that is ignored. |
1676 | * |
1677 | * We can then retry with the larger buffer. |
1678 | */ |
1679 | if ((ret == -ENOBUFS || ret == -EMSGSIZE) && |
1680 | !skb->len && |
1681 | cb->min_dump_alloc < 4096) { |
1682 | cb->min_dump_alloc = 4096; |
1683 | rtnl_unlock(); |
1684 | return 1; |
1685 | } |
1686 | idx--; |
1687 | break; |
1688 | } |
1689 | } while (state->split_start > 0); |
1690 | break; |
1691 | } |
1692 | rtnl_unlock(); |
1693 | |
1694 | state->start = idx; |
1695 | |
1696 | return skb->len; |
1697 | } |
1698 | |
1699 | static int nl80211_dump_wiphy_done(struct netlink_callback *cb) |
1700 | { |
1701 | kfree((void *)cb->args[0]); |
1702 | return 0; |
1703 | } |
1704 | |
1705 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) |
1706 | { |
1707 | struct sk_buff *msg; |
1708 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
1709 | struct nl80211_dump_wiphy_state state = {}; |
1710 | |
1711 | msg = nlmsg_new(4096, GFP_KERNEL); |
1712 | if (!msg) |
1713 | return -ENOMEM; |
1714 | |
1715 | if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0, |
1716 | &state) < 0) { |
1717 | nlmsg_free(msg); |
1718 | return -ENOBUFS; |
1719 | } |
1720 | |
1721 | return genlmsg_reply(msg, info); |
1722 | } |
1723 | |
1724 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1725 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, |
1726 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, |
1727 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, |
1728 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, |
1729 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, |
1730 | }; |
1731 | |
1732 | static int parse_txq_params(struct nlattr *tb[], |
1733 | struct ieee80211_txq_params *txq_params) |
1734 | { |
1735 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
1736 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1737 | !tb[NL80211_TXQ_ATTR_AIFS]) |
1738 | return -EINVAL; |
1739 | |
1740 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
1741 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1742 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); |
1743 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); |
1744 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); |
1745 | |
1746 | if (txq_params->ac >= NL80211_NUM_ACS) |
1747 | return -EINVAL; |
1748 | |
1749 | return 0; |
1750 | } |
1751 | |
1752 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1753 | { |
1754 | /* |
1755 | * You can only set the channel explicitly for WDS interfaces, |
1756 | * all others have their channel managed via their respective |
1757 | * "establish a connection" command (connect, join, ...) |
1758 | * |
1759 | * For AP/GO and mesh mode, the channel can be set with the |
1760 | * channel userspace API, but is only stored and passed to the |
1761 | * low-level driver when the AP starts or the mesh is joined. |
1762 | * This is for backward compatibility, userspace can also give |
1763 | * the channel in the start-ap or join-mesh commands instead. |
1764 | * |
1765 | * Monitors are special as they are normally slaved to |
1766 | * whatever else is going on, so they have their own special |
1767 | * operation to set the monitor channel if possible. |
1768 | */ |
1769 | return !wdev || |
1770 | wdev->iftype == NL80211_IFTYPE_AP || |
1771 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
1772 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1773 | wdev->iftype == NL80211_IFTYPE_P2P_GO; |
1774 | } |
1775 | |
1776 | static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, |
1777 | struct genl_info *info, |
1778 | struct cfg80211_chan_def *chandef) |
1779 | { |
1780 | u32 control_freq; |
1781 | |
1782 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) |
1783 | return -EINVAL; |
1784 | |
1785 | control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); |
1786 | |
1787 | chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq); |
1788 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; |
1789 | chandef->center_freq1 = control_freq; |
1790 | chandef->center_freq2 = 0; |
1791 | |
1792 | /* Primary channel not allowed */ |
1793 | if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) |
1794 | return -EINVAL; |
1795 | |
1796 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
1797 | enum nl80211_channel_type chantype; |
1798 | |
1799 | chantype = nla_get_u32( |
1800 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); |
1801 | |
1802 | switch (chantype) { |
1803 | case NL80211_CHAN_NO_HT: |
1804 | case NL80211_CHAN_HT20: |
1805 | case NL80211_CHAN_HT40PLUS: |
1806 | case NL80211_CHAN_HT40MINUS: |
1807 | cfg80211_chandef_create(chandef, chandef->chan, |
1808 | chantype); |
1809 | break; |
1810 | default: |
1811 | return -EINVAL; |
1812 | } |
1813 | } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) { |
1814 | chandef->width = |
1815 | nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]); |
1816 | if (info->attrs[NL80211_ATTR_CENTER_FREQ1]) |
1817 | chandef->center_freq1 = |
1818 | nla_get_u32( |
1819 | info->attrs[NL80211_ATTR_CENTER_FREQ1]); |
1820 | if (info->attrs[NL80211_ATTR_CENTER_FREQ2]) |
1821 | chandef->center_freq2 = |
1822 | nla_get_u32( |
1823 | info->attrs[NL80211_ATTR_CENTER_FREQ2]); |
1824 | } |
1825 | |
1826 | if (!cfg80211_chandef_valid(chandef)) |
1827 | return -EINVAL; |
1828 | |
1829 | if (!cfg80211_chandef_usable(&rdev->wiphy, chandef, |
1830 | IEEE80211_CHAN_DISABLED)) |
1831 | return -EINVAL; |
1832 | |
1833 | if ((chandef->width == NL80211_CHAN_WIDTH_5 || |
1834 | chandef->width == NL80211_CHAN_WIDTH_10) && |
1835 | !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) |
1836 | return -EINVAL; |
1837 | |
1838 | return 0; |
1839 | } |
1840 | |
1841 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
1842 | struct wireless_dev *wdev, |
1843 | struct genl_info *info) |
1844 | { |
1845 | struct cfg80211_chan_def chandef; |
1846 | int result; |
1847 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
1848 | |
1849 | if (wdev) |
1850 | iftype = wdev->iftype; |
1851 | |
1852 | if (!nl80211_can_set_dev_channel(wdev)) |
1853 | return -EOPNOTSUPP; |
1854 | |
1855 | result = nl80211_parse_chandef(rdev, info, &chandef); |
1856 | if (result) |
1857 | return result; |
1858 | |
1859 | switch (iftype) { |
1860 | case NL80211_IFTYPE_AP: |
1861 | case NL80211_IFTYPE_P2P_GO: |
1862 | if (wdev->beacon_interval) { |
1863 | result = -EBUSY; |
1864 | break; |
1865 | } |
1866 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) { |
1867 | result = -EINVAL; |
1868 | break; |
1869 | } |
1870 | wdev->preset_chandef = chandef; |
1871 | result = 0; |
1872 | break; |
1873 | case NL80211_IFTYPE_MESH_POINT: |
1874 | result = cfg80211_set_mesh_channel(rdev, wdev, &chandef); |
1875 | break; |
1876 | case NL80211_IFTYPE_MONITOR: |
1877 | result = cfg80211_set_monitor_channel(rdev, &chandef); |
1878 | break; |
1879 | default: |
1880 | result = -EINVAL; |
1881 | } |
1882 | |
1883 | return result; |
1884 | } |
1885 | |
1886 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) |
1887 | { |
1888 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1889 | struct net_device *netdev = info->user_ptr[1]; |
1890 | |
1891 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
1892 | } |
1893 | |
1894 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
1895 | { |
1896 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1897 | struct net_device *dev = info->user_ptr[1]; |
1898 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1899 | const u8 *bssid; |
1900 | |
1901 | if (!info->attrs[NL80211_ATTR_MAC]) |
1902 | return -EINVAL; |
1903 | |
1904 | if (netif_running(dev)) |
1905 | return -EBUSY; |
1906 | |
1907 | if (!rdev->ops->set_wds_peer) |
1908 | return -EOPNOTSUPP; |
1909 | |
1910 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
1911 | return -EOPNOTSUPP; |
1912 | |
1913 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
1914 | return rdev_set_wds_peer(rdev, dev, bssid); |
1915 | } |
1916 | |
1917 | |
1918 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
1919 | { |
1920 | struct cfg80211_registered_device *rdev; |
1921 | struct net_device *netdev = NULL; |
1922 | struct wireless_dev *wdev; |
1923 | int result = 0, rem_txq_params = 0; |
1924 | struct nlattr *nl_txq_params; |
1925 | u32 changed; |
1926 | u8 retry_short = 0, retry_long = 0; |
1927 | u32 frag_threshold = 0, rts_threshold = 0; |
1928 | u8 coverage_class = 0; |
1929 | |
1930 | ASSERT_RTNL(); |
1931 | |
1932 | /* |
1933 | * Try to find the wiphy and netdev. Normally this |
1934 | * function shouldn't need the netdev, but this is |
1935 | * done for backward compatibility -- previously |
1936 | * setting the channel was done per wiphy, but now |
1937 | * it is per netdev. Previous userland like hostapd |
1938 | * also passed a netdev to set_wiphy, so that it is |
1939 | * possible to let that go to the right netdev! |
1940 | */ |
1941 | |
1942 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
1943 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); |
1944 | |
1945 | netdev = dev_get_by_index(genl_info_net(info), ifindex); |
1946 | if (netdev && netdev->ieee80211_ptr) |
1947 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); |
1948 | else |
1949 | netdev = NULL; |
1950 | } |
1951 | |
1952 | if (!netdev) { |
1953 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
1954 | info->attrs); |
1955 | if (IS_ERR(rdev)) |
1956 | return PTR_ERR(rdev); |
1957 | wdev = NULL; |
1958 | netdev = NULL; |
1959 | result = 0; |
1960 | } else |
1961 | wdev = netdev->ieee80211_ptr; |
1962 | |
1963 | /* |
1964 | * end workaround code, by now the rdev is available |
1965 | * and locked, and wdev may or may not be NULL. |
1966 | */ |
1967 | |
1968 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) |
1969 | result = cfg80211_dev_rename( |
1970 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); |
1971 | |
1972 | if (result) |
1973 | goto bad_res; |
1974 | |
1975 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { |
1976 | struct ieee80211_txq_params txq_params; |
1977 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; |
1978 | |
1979 | if (!rdev->ops->set_txq_params) { |
1980 | result = -EOPNOTSUPP; |
1981 | goto bad_res; |
1982 | } |
1983 | |
1984 | if (!netdev) { |
1985 | result = -EINVAL; |
1986 | goto bad_res; |
1987 | } |
1988 | |
1989 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
1990 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { |
1991 | result = -EINVAL; |
1992 | goto bad_res; |
1993 | } |
1994 | |
1995 | if (!netif_running(netdev)) { |
1996 | result = -ENETDOWN; |
1997 | goto bad_res; |
1998 | } |
1999 | |
2000 | nla_for_each_nested(nl_txq_params, |
2001 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], |
2002 | rem_txq_params) { |
2003 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, |
2004 | nla_data(nl_txq_params), |
2005 | nla_len(nl_txq_params), |
2006 | txq_params_policy); |
2007 | result = parse_txq_params(tb, &txq_params); |
2008 | if (result) |
2009 | goto bad_res; |
2010 | |
2011 | result = rdev_set_txq_params(rdev, netdev, |
2012 | &txq_params); |
2013 | if (result) |
2014 | goto bad_res; |
2015 | } |
2016 | } |
2017 | |
2018 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
2019 | result = __nl80211_set_channel(rdev, |
2020 | nl80211_can_set_dev_channel(wdev) ? wdev : NULL, |
2021 | info); |
2022 | if (result) |
2023 | goto bad_res; |
2024 | } |
2025 | |
2026 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
2027 | struct wireless_dev *txp_wdev = wdev; |
2028 | enum nl80211_tx_power_setting type; |
2029 | int idx, mbm = 0; |
2030 | |
2031 | if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) |
2032 | txp_wdev = NULL; |
2033 | |
2034 | if (!rdev->ops->set_tx_power) { |
2035 | result = -EOPNOTSUPP; |
2036 | goto bad_res; |
2037 | } |
2038 | |
2039 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; |
2040 | type = nla_get_u32(info->attrs[idx]); |
2041 | |
2042 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && |
2043 | (type != NL80211_TX_POWER_AUTOMATIC)) { |
2044 | result = -EINVAL; |
2045 | goto bad_res; |
2046 | } |
2047 | |
2048 | if (type != NL80211_TX_POWER_AUTOMATIC) { |
2049 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; |
2050 | mbm = nla_get_u32(info->attrs[idx]); |
2051 | } |
2052 | |
2053 | result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); |
2054 | if (result) |
2055 | goto bad_res; |
2056 | } |
2057 | |
2058 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
2059 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { |
2060 | u32 tx_ant, rx_ant; |
2061 | if ((!rdev->wiphy.available_antennas_tx && |
2062 | !rdev->wiphy.available_antennas_rx) || |
2063 | !rdev->ops->set_antenna) { |
2064 | result = -EOPNOTSUPP; |
2065 | goto bad_res; |
2066 | } |
2067 | |
2068 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); |
2069 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); |
2070 | |
2071 | /* reject antenna configurations which don't match the |
2072 | * available antenna masks, except for the "all" mask */ |
2073 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || |
2074 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { |
2075 | result = -EINVAL; |
2076 | goto bad_res; |
2077 | } |
2078 | |
2079 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
2080 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; |
2081 | |
2082 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); |
2083 | if (result) |
2084 | goto bad_res; |
2085 | } |
2086 | |
2087 | changed = 0; |
2088 | |
2089 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { |
2090 | retry_short = nla_get_u8( |
2091 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); |
2092 | if (retry_short == 0) { |
2093 | result = -EINVAL; |
2094 | goto bad_res; |
2095 | } |
2096 | changed |= WIPHY_PARAM_RETRY_SHORT; |
2097 | } |
2098 | |
2099 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { |
2100 | retry_long = nla_get_u8( |
2101 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); |
2102 | if (retry_long == 0) { |
2103 | result = -EINVAL; |
2104 | goto bad_res; |
2105 | } |
2106 | changed |= WIPHY_PARAM_RETRY_LONG; |
2107 | } |
2108 | |
2109 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { |
2110 | frag_threshold = nla_get_u32( |
2111 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); |
2112 | if (frag_threshold < 256) { |
2113 | result = -EINVAL; |
2114 | goto bad_res; |
2115 | } |
2116 | if (frag_threshold != (u32) -1) { |
2117 | /* |
2118 | * Fragments (apart from the last one) are required to |
2119 | * have even length. Make the fragmentation code |
2120 | * simpler by stripping LSB should someone try to use |
2121 | * odd threshold value. |
2122 | */ |
2123 | frag_threshold &= ~0x1; |
2124 | } |
2125 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; |
2126 | } |
2127 | |
2128 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { |
2129 | rts_threshold = nla_get_u32( |
2130 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); |
2131 | changed |= WIPHY_PARAM_RTS_THRESHOLD; |
2132 | } |
2133 | |
2134 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
2135 | coverage_class = nla_get_u8( |
2136 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); |
2137 | changed |= WIPHY_PARAM_COVERAGE_CLASS; |
2138 | } |
2139 | |
2140 | if (changed) { |
2141 | u8 old_retry_short, old_retry_long; |
2142 | u32 old_frag_threshold, old_rts_threshold; |
2143 | u8 old_coverage_class; |
2144 | |
2145 | if (!rdev->ops->set_wiphy_params) { |
2146 | result = -EOPNOTSUPP; |
2147 | goto bad_res; |
2148 | } |
2149 | |
2150 | old_retry_short = rdev->wiphy.retry_short; |
2151 | old_retry_long = rdev->wiphy.retry_long; |
2152 | old_frag_threshold = rdev->wiphy.frag_threshold; |
2153 | old_rts_threshold = rdev->wiphy.rts_threshold; |
2154 | old_coverage_class = rdev->wiphy.coverage_class; |
2155 | |
2156 | if (changed & WIPHY_PARAM_RETRY_SHORT) |
2157 | rdev->wiphy.retry_short = retry_short; |
2158 | if (changed & WIPHY_PARAM_RETRY_LONG) |
2159 | rdev->wiphy.retry_long = retry_long; |
2160 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) |
2161 | rdev->wiphy.frag_threshold = frag_threshold; |
2162 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) |
2163 | rdev->wiphy.rts_threshold = rts_threshold; |
2164 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
2165 | rdev->wiphy.coverage_class = coverage_class; |
2166 | |
2167 | result = rdev_set_wiphy_params(rdev, changed); |
2168 | if (result) { |
2169 | rdev->wiphy.retry_short = old_retry_short; |
2170 | rdev->wiphy.retry_long = old_retry_long; |
2171 | rdev->wiphy.frag_threshold = old_frag_threshold; |
2172 | rdev->wiphy.rts_threshold = old_rts_threshold; |
2173 | rdev->wiphy.coverage_class = old_coverage_class; |
2174 | } |
2175 | } |
2176 | |
2177 | bad_res: |
2178 | if (netdev) |
2179 | dev_put(netdev); |
2180 | return result; |
2181 | } |
2182 | |
2183 | static inline u64 wdev_id(struct wireless_dev *wdev) |
2184 | { |
2185 | return (u64)wdev->identifier | |
2186 | ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32); |
2187 | } |
2188 | |
2189 | static int nl80211_send_chandef(struct sk_buff *msg, |
2190 | struct cfg80211_chan_def *chandef) |
2191 | { |
2192 | WARN_ON(!cfg80211_chandef_valid(chandef)); |
2193 | |
2194 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, |
2195 | chandef->chan->center_freq)) |
2196 | return -ENOBUFS; |
2197 | switch (chandef->width) { |
2198 | case NL80211_CHAN_WIDTH_20_NOHT: |
2199 | case NL80211_CHAN_WIDTH_20: |
2200 | case NL80211_CHAN_WIDTH_40: |
2201 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
2202 | cfg80211_get_chandef_type(chandef))) |
2203 | return -ENOBUFS; |
2204 | break; |
2205 | default: |
2206 | break; |
2207 | } |
2208 | if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width)) |
2209 | return -ENOBUFS; |
2210 | if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1)) |
2211 | return -ENOBUFS; |
2212 | if (chandef->center_freq2 && |
2213 | nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2)) |
2214 | return -ENOBUFS; |
2215 | return 0; |
2216 | } |
2217 | |
2218 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
2219 | struct cfg80211_registered_device *rdev, |
2220 | struct wireless_dev *wdev) |
2221 | { |
2222 | struct net_device *dev = wdev->netdev; |
2223 | void *hdr; |
2224 | |
2225 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE); |
2226 | if (!hdr) |
2227 | return -1; |
2228 | |
2229 | if (dev && |
2230 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2231 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
2232 | goto nla_put_failure; |
2233 | |
2234 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
2235 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || |
2236 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
2237 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
2238 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
2239 | rdev->devlist_generation ^ |
2240 | (cfg80211_rdev_list_generation << 2))) |
2241 | goto nla_put_failure; |
2242 | |
2243 | if (rdev->ops->get_channel) { |
2244 | int ret; |
2245 | struct cfg80211_chan_def chandef; |
2246 | |
2247 | ret = rdev_get_channel(rdev, wdev, &chandef); |
2248 | if (ret == 0) { |
2249 | if (nl80211_send_chandef(msg, &chandef)) |
2250 | goto nla_put_failure; |
2251 | } |
2252 | } |
2253 | |
2254 | if (wdev->ssid_len) { |
2255 | if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid)) |
2256 | goto nla_put_failure; |
2257 | } |
2258 | |
2259 | return genlmsg_end(msg, hdr); |
2260 | |
2261 | nla_put_failure: |
2262 | genlmsg_cancel(msg, hdr); |
2263 | return -EMSGSIZE; |
2264 | } |
2265 | |
2266 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) |
2267 | { |
2268 | int wp_idx = 0; |
2269 | int if_idx = 0; |
2270 | int wp_start = cb->args[0]; |
2271 | int if_start = cb->args[1]; |
2272 | struct cfg80211_registered_device *rdev; |
2273 | struct wireless_dev *wdev; |
2274 | |
2275 | rtnl_lock(); |
2276 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
2277 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) |
2278 | continue; |
2279 | if (wp_idx < wp_start) { |
2280 | wp_idx++; |
2281 | continue; |
2282 | } |
2283 | if_idx = 0; |
2284 | |
2285 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
2286 | if (if_idx < if_start) { |
2287 | if_idx++; |
2288 | continue; |
2289 | } |
2290 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
2291 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
2292 | rdev, wdev) < 0) { |
2293 | goto out; |
2294 | } |
2295 | if_idx++; |
2296 | } |
2297 | |
2298 | wp_idx++; |
2299 | } |
2300 | out: |
2301 | rtnl_unlock(); |
2302 | |
2303 | cb->args[0] = wp_idx; |
2304 | cb->args[1] = if_idx; |
2305 | |
2306 | return skb->len; |
2307 | } |
2308 | |
2309 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) |
2310 | { |
2311 | struct sk_buff *msg; |
2312 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
2313 | struct wireless_dev *wdev = info->user_ptr[1]; |
2314 | |
2315 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2316 | if (!msg) |
2317 | return -ENOMEM; |
2318 | |
2319 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
2320 | dev, wdev) < 0) { |
2321 | nlmsg_free(msg); |
2322 | return -ENOBUFS; |
2323 | } |
2324 | |
2325 | return genlmsg_reply(msg, info); |
2326 | } |
2327 | |
2328 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
2329 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, |
2330 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, |
2331 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, |
2332 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, |
2333 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, |
2334 | [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG }, |
2335 | }; |
2336 | |
2337 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) |
2338 | { |
2339 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; |
2340 | int flag; |
2341 | |
2342 | *mntrflags = 0; |
2343 | |
2344 | if (!nla) |
2345 | return -EINVAL; |
2346 | |
2347 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, |
2348 | nla, mntr_flags_policy)) |
2349 | return -EINVAL; |
2350 | |
2351 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) |
2352 | if (flags[flag]) |
2353 | *mntrflags |= (1<<flag); |
2354 | |
2355 | return 0; |
2356 | } |
2357 | |
2358 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
2359 | struct net_device *netdev, u8 use_4addr, |
2360 | enum nl80211_iftype iftype) |
2361 | { |
2362 | if (!use_4addr) { |
2363 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
2364 | return -EBUSY; |
2365 | return 0; |
2366 | } |
2367 | |
2368 | switch (iftype) { |
2369 | case NL80211_IFTYPE_AP_VLAN: |
2370 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) |
2371 | return 0; |
2372 | break; |
2373 | case NL80211_IFTYPE_STATION: |
2374 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) |
2375 | return 0; |
2376 | break; |
2377 | default: |
2378 | break; |
2379 | } |
2380 | |
2381 | return -EOPNOTSUPP; |
2382 | } |
2383 | |
2384 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
2385 | { |
2386 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2387 | struct vif_params params; |
2388 | int err; |
2389 | enum nl80211_iftype otype, ntype; |
2390 | struct net_device *dev = info->user_ptr[1]; |
2391 | u32 _flags, *flags = NULL; |
2392 | bool change = false; |
2393 | |
2394 | memset(¶ms, 0, sizeof(params)); |
2395 | |
2396 | otype = ntype = dev->ieee80211_ptr->iftype; |
2397 | |
2398 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
2399 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
2400 | if (otype != ntype) |
2401 | change = true; |
2402 | if (ntype > NL80211_IFTYPE_MAX) |
2403 | return -EINVAL; |
2404 | } |
2405 | |
2406 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
2407 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2408 | |
2409 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
2410 | return -EINVAL; |
2411 | if (netif_running(dev)) |
2412 | return -EBUSY; |
2413 | |
2414 | wdev_lock(wdev); |
2415 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != |
2416 | IEEE80211_MAX_MESH_ID_LEN); |
2417 | wdev->mesh_id_up_len = |
2418 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
2419 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), |
2420 | wdev->mesh_id_up_len); |
2421 | wdev_unlock(wdev); |
2422 | } |
2423 | |
2424 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
2425 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
2426 | change = true; |
2427 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
2428 | if (err) |
2429 | return err; |
2430 | } else { |
2431 | params.use_4addr = -1; |
2432 | } |
2433 | |
2434 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
2435 | if (ntype != NL80211_IFTYPE_MONITOR) |
2436 | return -EINVAL; |
2437 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
2438 | &_flags); |
2439 | if (err) |
2440 | return err; |
2441 | |
2442 | flags = &_flags; |
2443 | change = true; |
2444 | } |
2445 | |
2446 | if (flags && (*flags & MONITOR_FLAG_ACTIVE) && |
2447 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2448 | return -EOPNOTSUPP; |
2449 | |
2450 | if (change) |
2451 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
2452 | else |
2453 | err = 0; |
2454 | |
2455 | if (!err && params.use_4addr != -1) |
2456 | dev->ieee80211_ptr->use_4addr = params.use_4addr; |
2457 | |
2458 | return err; |
2459 | } |
2460 | |
2461 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) |
2462 | { |
2463 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2464 | struct vif_params params; |
2465 | struct wireless_dev *wdev; |
2466 | struct sk_buff *msg; |
2467 | int err; |
2468 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; |
2469 | u32 flags; |
2470 | |
2471 | memset(¶ms, 0, sizeof(params)); |
2472 | |
2473 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
2474 | return -EINVAL; |
2475 | |
2476 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
2477 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
2478 | if (type > NL80211_IFTYPE_MAX) |
2479 | return -EINVAL; |
2480 | } |
2481 | |
2482 | if (!rdev->ops->add_virtual_intf || |
2483 | !(rdev->wiphy.interface_modes & (1 << type))) |
2484 | return -EOPNOTSUPP; |
2485 | |
2486 | if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) { |
2487 | nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], |
2488 | ETH_ALEN); |
2489 | if (!is_valid_ether_addr(params.macaddr)) |
2490 | return -EADDRNOTAVAIL; |
2491 | } |
2492 | |
2493 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
2494 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
2495 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
2496 | if (err) |
2497 | return err; |
2498 | } |
2499 | |
2500 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2501 | if (!msg) |
2502 | return -ENOMEM; |
2503 | |
2504 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
2505 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, |
2506 | &flags); |
2507 | |
2508 | if (!err && (flags & MONITOR_FLAG_ACTIVE) && |
2509 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2510 | return -EOPNOTSUPP; |
2511 | |
2512 | wdev = rdev_add_virtual_intf(rdev, |
2513 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2514 | type, err ? NULL : &flags, ¶ms); |
2515 | if (IS_ERR(wdev)) { |
2516 | nlmsg_free(msg); |
2517 | return PTR_ERR(wdev); |
2518 | } |
2519 | |
2520 | switch (type) { |
2521 | case NL80211_IFTYPE_MESH_POINT: |
2522 | if (!info->attrs[NL80211_ATTR_MESH_ID]) |
2523 | break; |
2524 | wdev_lock(wdev); |
2525 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != |
2526 | IEEE80211_MAX_MESH_ID_LEN); |
2527 | wdev->mesh_id_up_len = |
2528 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
2529 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), |
2530 | wdev->mesh_id_up_len); |
2531 | wdev_unlock(wdev); |
2532 | break; |
2533 | case NL80211_IFTYPE_P2P_DEVICE: |
2534 | /* |
2535 | * P2P Device doesn't have a netdev, so doesn't go |
2536 | * through the netdev notifier and must be added here |
2537 | */ |
2538 | mutex_init(&wdev->mtx); |
2539 | INIT_LIST_HEAD(&wdev->event_list); |
2540 | spin_lock_init(&wdev->event_lock); |
2541 | INIT_LIST_HEAD(&wdev->mgmt_registrations); |
2542 | spin_lock_init(&wdev->mgmt_registrations_lock); |
2543 | |
2544 | wdev->identifier = ++rdev->wdev_id; |
2545 | list_add_rcu(&wdev->list, &rdev->wdev_list); |
2546 | rdev->devlist_generation++; |
2547 | break; |
2548 | default: |
2549 | break; |
2550 | } |
2551 | |
2552 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
2553 | rdev, wdev) < 0) { |
2554 | nlmsg_free(msg); |
2555 | return -ENOBUFS; |
2556 | } |
2557 | |
2558 | return genlmsg_reply(msg, info); |
2559 | } |
2560 | |
2561 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) |
2562 | { |
2563 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2564 | struct wireless_dev *wdev = info->user_ptr[1]; |
2565 | |
2566 | if (!rdev->ops->del_virtual_intf) |
2567 | return -EOPNOTSUPP; |
2568 | |
2569 | /* |
2570 | * If we remove a wireless device without a netdev then clear |
2571 | * user_ptr[1] so that nl80211_post_doit won't dereference it |
2572 | * to check if it needs to do dev_put(). Otherwise it crashes |
2573 | * since the wdev has been freed, unlike with a netdev where |
2574 | * we need the dev_put() for the netdev to really be freed. |
2575 | */ |
2576 | if (!wdev->netdev) |
2577 | info->user_ptr[1] = NULL; |
2578 | |
2579 | return rdev_del_virtual_intf(rdev, wdev); |
2580 | } |
2581 | |
2582 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
2583 | { |
2584 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2585 | struct net_device *dev = info->user_ptr[1]; |
2586 | u16 noack_map; |
2587 | |
2588 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) |
2589 | return -EINVAL; |
2590 | |
2591 | if (!rdev->ops->set_noack_map) |
2592 | return -EOPNOTSUPP; |
2593 | |
2594 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); |
2595 | |
2596 | return rdev_set_noack_map(rdev, dev, noack_map); |
2597 | } |
2598 | |
2599 | struct get_key_cookie { |
2600 | struct sk_buff *msg; |
2601 | int error; |
2602 | int idx; |
2603 | }; |
2604 | |
2605 | static void get_key_callback(void *c, struct key_params *params) |
2606 | { |
2607 | struct nlattr *key; |
2608 | struct get_key_cookie *cookie = c; |
2609 | |
2610 | if ((params->key && |
2611 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, |
2612 | params->key_len, params->key)) || |
2613 | (params->seq && |
2614 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, |
2615 | params->seq_len, params->seq)) || |
2616 | (params->cipher && |
2617 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, |
2618 | params->cipher))) |
2619 | goto nla_put_failure; |
2620 | |
2621 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
2622 | if (!key) |
2623 | goto nla_put_failure; |
2624 | |
2625 | if ((params->key && |
2626 | nla_put(cookie->msg, NL80211_KEY_DATA, |
2627 | params->key_len, params->key)) || |
2628 | (params->seq && |
2629 | nla_put(cookie->msg, NL80211_KEY_SEQ, |
2630 | params->seq_len, params->seq)) || |
2631 | (params->cipher && |
2632 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, |
2633 | params->cipher))) |
2634 | goto nla_put_failure; |
2635 | |
2636 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
2637 | goto nla_put_failure; |
2638 | |
2639 | nla_nest_end(cookie->msg, key); |
2640 | |
2641 | return; |
2642 | nla_put_failure: |
2643 | cookie->error = 1; |
2644 | } |
2645 | |
2646 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) |
2647 | { |
2648 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2649 | int err; |
2650 | struct net_device *dev = info->user_ptr[1]; |
2651 | u8 key_idx = 0; |
2652 | const u8 *mac_addr = NULL; |
2653 | bool pairwise; |
2654 | struct get_key_cookie cookie = { |
2655 | .error = 0, |
2656 | }; |
2657 | void *hdr; |
2658 | struct sk_buff *msg; |
2659 | |
2660 | if (info->attrs[NL80211_ATTR_KEY_IDX]) |
2661 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
2662 | |
2663 | if (key_idx > 5) |
2664 | return -EINVAL; |
2665 | |
2666 | if (info->attrs[NL80211_ATTR_MAC]) |
2667 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2668 | |
2669 | pairwise = !!mac_addr; |
2670 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
2671 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); |
2672 | if (kt >= NUM_NL80211_KEYTYPES) |
2673 | return -EINVAL; |
2674 | if (kt != NL80211_KEYTYPE_GROUP && |
2675 | kt != NL80211_KEYTYPE_PAIRWISE) |
2676 | return -EINVAL; |
2677 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; |
2678 | } |
2679 | |
2680 | if (!rdev->ops->get_key) |
2681 | return -EOPNOTSUPP; |
2682 | |
2683 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2684 | if (!msg) |
2685 | return -ENOMEM; |
2686 | |
2687 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
2688 | NL80211_CMD_NEW_KEY); |
2689 | if (!hdr) |
2690 | goto nla_put_failure; |
2691 | |
2692 | cookie.msg = msg; |
2693 | cookie.idx = key_idx; |
2694 | |
2695 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2696 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) |
2697 | goto nla_put_failure; |
2698 | if (mac_addr && |
2699 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) |
2700 | goto nla_put_failure; |
2701 | |
2702 | if (pairwise && mac_addr && |
2703 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
2704 | return -ENOENT; |
2705 | |
2706 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, |
2707 | get_key_callback); |
2708 | |
2709 | if (err) |
2710 | goto free_msg; |
2711 | |
2712 | if (cookie.error) |
2713 | goto nla_put_failure; |
2714 | |
2715 | genlmsg_end(msg, hdr); |
2716 | return genlmsg_reply(msg, info); |
2717 | |
2718 | nla_put_failure: |
2719 | err = -ENOBUFS; |
2720 | free_msg: |
2721 | nlmsg_free(msg); |
2722 | return err; |
2723 | } |
2724 | |
2725 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) |
2726 | { |
2727 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2728 | struct key_parse key; |
2729 | int err; |
2730 | struct net_device *dev = info->user_ptr[1]; |
2731 | |
2732 | err = nl80211_parse_key(info, &key); |
2733 | if (err) |
2734 | return err; |
2735 | |
2736 | if (key.idx < 0) |
2737 | return -EINVAL; |
2738 | |
2739 | /* only support setting default key */ |
2740 | if (!key.def && !key.defmgmt) |
2741 | return -EINVAL; |
2742 | |
2743 | wdev_lock(dev->ieee80211_ptr); |
2744 | |
2745 | if (key.def) { |
2746 | if (!rdev->ops->set_default_key) { |
2747 | err = -EOPNOTSUPP; |
2748 | goto out; |
2749 | } |
2750 | |
2751 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2752 | if (err) |
2753 | goto out; |
2754 | |
2755 | err = rdev_set_default_key(rdev, dev, key.idx, |
2756 | key.def_uni, key.def_multi); |
2757 | |
2758 | if (err) |
2759 | goto out; |
2760 | |
2761 | #ifdef CONFIG_CFG80211_WEXT |
2762 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2763 | #endif |
2764 | } else { |
2765 | if (key.def_uni || !key.def_multi) { |
2766 | err = -EINVAL; |
2767 | goto out; |
2768 | } |
2769 | |
2770 | if (!rdev->ops->set_default_mgmt_key) { |
2771 | err = -EOPNOTSUPP; |
2772 | goto out; |
2773 | } |
2774 | |
2775 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2776 | if (err) |
2777 | goto out; |
2778 | |
2779 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); |
2780 | if (err) |
2781 | goto out; |
2782 | |
2783 | #ifdef CONFIG_CFG80211_WEXT |
2784 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
2785 | #endif |
2786 | } |
2787 | |
2788 | out: |
2789 | wdev_unlock(dev->ieee80211_ptr); |
2790 | |
2791 | return err; |
2792 | } |
2793 | |
2794 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) |
2795 | { |
2796 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2797 | int err; |
2798 | struct net_device *dev = info->user_ptr[1]; |
2799 | struct key_parse key; |
2800 | const u8 *mac_addr = NULL; |
2801 | |
2802 | err = nl80211_parse_key(info, &key); |
2803 | if (err) |
2804 | return err; |
2805 | |
2806 | if (!key.p.key) |
2807 | return -EINVAL; |
2808 | |
2809 | if (info->attrs[NL80211_ATTR_MAC]) |
2810 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2811 | |
2812 | if (key.type == -1) { |
2813 | if (mac_addr) |
2814 | key.type = NL80211_KEYTYPE_PAIRWISE; |
2815 | else |
2816 | key.type = NL80211_KEYTYPE_GROUP; |
2817 | } |
2818 | |
2819 | /* for now */ |
2820 | if (key.type != NL80211_KEYTYPE_PAIRWISE && |
2821 | key.type != NL80211_KEYTYPE_GROUP) |
2822 | return -EINVAL; |
2823 | |
2824 | if (!rdev->ops->add_key) |
2825 | return -EOPNOTSUPP; |
2826 | |
2827 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
2828 | key.type == NL80211_KEYTYPE_PAIRWISE, |
2829 | mac_addr)) |
2830 | return -EINVAL; |
2831 | |
2832 | wdev_lock(dev->ieee80211_ptr); |
2833 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2834 | if (!err) |
2835 | err = rdev_add_key(rdev, dev, key.idx, |
2836 | key.type == NL80211_KEYTYPE_PAIRWISE, |
2837 | mac_addr, &key.p); |
2838 | wdev_unlock(dev->ieee80211_ptr); |
2839 | |
2840 | return err; |
2841 | } |
2842 | |
2843 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) |
2844 | { |
2845 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2846 | int err; |
2847 | struct net_device *dev = info->user_ptr[1]; |
2848 | u8 *mac_addr = NULL; |
2849 | struct key_parse key; |
2850 | |
2851 | err = nl80211_parse_key(info, &key); |
2852 | if (err) |
2853 | return err; |
2854 | |
2855 | if (info->attrs[NL80211_ATTR_MAC]) |
2856 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2857 | |
2858 | if (key.type == -1) { |
2859 | if (mac_addr) |
2860 | key.type = NL80211_KEYTYPE_PAIRWISE; |
2861 | else |
2862 | key.type = NL80211_KEYTYPE_GROUP; |
2863 | } |
2864 | |
2865 | /* for now */ |
2866 | if (key.type != NL80211_KEYTYPE_PAIRWISE && |
2867 | key.type != NL80211_KEYTYPE_GROUP) |
2868 | return -EINVAL; |
2869 | |
2870 | if (!rdev->ops->del_key) |
2871 | return -EOPNOTSUPP; |
2872 | |
2873 | wdev_lock(dev->ieee80211_ptr); |
2874 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2875 | |
2876 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && |
2877 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
2878 | err = -ENOENT; |
2879 | |
2880 | if (!err) |
2881 | err = rdev_del_key(rdev, dev, key.idx, |
2882 | key.type == NL80211_KEYTYPE_PAIRWISE, |
2883 | mac_addr); |
2884 | |
2885 | #ifdef CONFIG_CFG80211_WEXT |
2886 | if (!err) { |
2887 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
2888 | dev->ieee80211_ptr->wext.default_key = -1; |
2889 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
2890 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
2891 | } |
2892 | #endif |
2893 | wdev_unlock(dev->ieee80211_ptr); |
2894 | |
2895 | return err; |
2896 | } |
2897 | |
2898 | /* This function returns an error or the number of nested attributes */ |
2899 | static int validate_acl_mac_addrs(struct nlattr *nl_attr) |
2900 | { |
2901 | struct nlattr *attr; |
2902 | int n_entries = 0, tmp; |
2903 | |
2904 | nla_for_each_nested(attr, nl_attr, tmp) { |
2905 | if (nla_len(attr) != ETH_ALEN) |
2906 | return -EINVAL; |
2907 | |
2908 | n_entries++; |
2909 | } |
2910 | |
2911 | return n_entries; |
2912 | } |
2913 | |
2914 | /* |
2915 | * This function parses ACL information and allocates memory for ACL data. |
2916 | * On successful return, the calling function is responsible to free the |
2917 | * ACL buffer returned by this function. |
2918 | */ |
2919 | static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy, |
2920 | struct genl_info *info) |
2921 | { |
2922 | enum nl80211_acl_policy acl_policy; |
2923 | struct nlattr *attr; |
2924 | struct cfg80211_acl_data *acl; |
2925 | int i = 0, n_entries, tmp; |
2926 | |
2927 | if (!wiphy->max_acl_mac_addrs) |
2928 | return ERR_PTR(-EOPNOTSUPP); |
2929 | |
2930 | if (!info->attrs[NL80211_ATTR_ACL_POLICY]) |
2931 | return ERR_PTR(-EINVAL); |
2932 | |
2933 | acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]); |
2934 | if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED && |
2935 | acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED) |
2936 | return ERR_PTR(-EINVAL); |
2937 | |
2938 | if (!info->attrs[NL80211_ATTR_MAC_ADDRS]) |
2939 | return ERR_PTR(-EINVAL); |
2940 | |
2941 | n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]); |
2942 | if (n_entries < 0) |
2943 | return ERR_PTR(n_entries); |
2944 | |
2945 | if (n_entries > wiphy->max_acl_mac_addrs) |
2946 | return ERR_PTR(-ENOTSUPP); |
2947 | |
2948 | acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries), |
2949 | GFP_KERNEL); |
2950 | if (!acl) |
2951 | return ERR_PTR(-ENOMEM); |
2952 | |
2953 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) { |
2954 | memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN); |
2955 | i++; |
2956 | } |
2957 | |
2958 | acl->n_acl_entries = n_entries; |
2959 | acl->acl_policy = acl_policy; |
2960 | |
2961 | return acl; |
2962 | } |
2963 | |
2964 | static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info) |
2965 | { |
2966 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2967 | struct net_device *dev = info->user_ptr[1]; |
2968 | struct cfg80211_acl_data *acl; |
2969 | int err; |
2970 | |
2971 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
2972 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2973 | return -EOPNOTSUPP; |
2974 | |
2975 | if (!dev->ieee80211_ptr->beacon_interval) |
2976 | return -EINVAL; |
2977 | |
2978 | acl = parse_acl_data(&rdev->wiphy, info); |
2979 | if (IS_ERR(acl)) |
2980 | return PTR_ERR(acl); |
2981 | |
2982 | err = rdev_set_mac_acl(rdev, dev, acl); |
2983 | |
2984 | kfree(acl); |
2985 | |
2986 | return err; |
2987 | } |
2988 | |
2989 | static int nl80211_parse_beacon(struct nlattr *attrs[], |
2990 | struct cfg80211_beacon_data *bcn) |
2991 | { |
2992 | bool haveinfo = false; |
2993 | |
2994 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) || |
2995 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) || |
2996 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) || |
2997 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP])) |
2998 | return -EINVAL; |
2999 | |
3000 | memset(bcn, 0, sizeof(*bcn)); |
3001 | |
3002 | if (attrs[NL80211_ATTR_BEACON_HEAD]) { |
3003 | bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]); |
3004 | bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]); |
3005 | if (!bcn->head_len) |
3006 | return -EINVAL; |
3007 | haveinfo = true; |
3008 | } |
3009 | |
3010 | if (attrs[NL80211_ATTR_BEACON_TAIL]) { |
3011 | bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]); |
3012 | bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]); |
3013 | haveinfo = true; |
3014 | } |
3015 | |
3016 | if (!haveinfo) |
3017 | return -EINVAL; |
3018 | |
3019 | if (attrs[NL80211_ATTR_IE]) { |
3020 | bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]); |
3021 | bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]); |
3022 | } |
3023 | |
3024 | if (attrs[NL80211_ATTR_IE_PROBE_RESP]) { |
3025 | bcn->proberesp_ies = |
3026 | nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
3027 | bcn->proberesp_ies_len = |
3028 | nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
3029 | } |
3030 | |
3031 | if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) { |
3032 | bcn->assocresp_ies = |
3033 | nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
3034 | bcn->assocresp_ies_len = |
3035 | nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
3036 | } |
3037 | |
3038 | if (attrs[NL80211_ATTR_PROBE_RESP]) { |
3039 | bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]); |
3040 | bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]); |
3041 | } |
3042 | |
3043 | return 0; |
3044 | } |
3045 | |
3046 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
3047 | struct cfg80211_ap_settings *params) |
3048 | { |
3049 | struct wireless_dev *wdev; |
3050 | bool ret = false; |
3051 | |
3052 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
3053 | if (wdev->iftype != NL80211_IFTYPE_AP && |
3054 | wdev->iftype != NL80211_IFTYPE_P2P_GO) |
3055 | continue; |
3056 | |
3057 | if (!wdev->preset_chandef.chan) |
3058 | continue; |
3059 | |
3060 | params->chandef = wdev->preset_chandef; |
3061 | ret = true; |
3062 | break; |
3063 | } |
3064 | |
3065 | return ret; |
3066 | } |
3067 | |
3068 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
3069 | enum nl80211_auth_type auth_type, |
3070 | enum nl80211_commands cmd) |
3071 | { |
3072 | if (auth_type > NL80211_AUTHTYPE_MAX) |
3073 | return false; |
3074 | |
3075 | switch (cmd) { |
3076 | case NL80211_CMD_AUTHENTICATE: |
3077 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && |
3078 | auth_type == NL80211_AUTHTYPE_SAE) |
3079 | return false; |
3080 | return true; |
3081 | case NL80211_CMD_CONNECT: |
3082 | case NL80211_CMD_START_AP: |
3083 | /* SAE not supported yet */ |
3084 | if (auth_type == NL80211_AUTHTYPE_SAE) |
3085 | return false; |
3086 | return true; |
3087 | default: |
3088 | return false; |
3089 | } |
3090 | } |
3091 | |
3092 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
3093 | { |
3094 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3095 | struct net_device *dev = info->user_ptr[1]; |
3096 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
3097 | struct cfg80211_ap_settings params; |
3098 | int err; |
3099 | u8 radar_detect_width = 0; |
3100 | |
3101 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
3102 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3103 | return -EOPNOTSUPP; |
3104 | |
3105 | if (!rdev->ops->start_ap) |
3106 | return -EOPNOTSUPP; |
3107 | |
3108 | if (wdev->beacon_interval) |
3109 | return -EALREADY; |
3110 | |
3111 | memset(¶ms, 0, sizeof(params)); |
3112 | |
3113 | /* these are required for START_AP */ |
3114 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || |
3115 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || |
3116 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) |
3117 | return -EINVAL; |
3118 | |
3119 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon); |
3120 | if (err) |
3121 | return err; |
3122 | |
3123 | params.beacon_interval = |
3124 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); |
3125 | params.dtim_period = |
3126 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); |
3127 | |
3128 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); |
3129 | if (err) |
3130 | return err; |
3131 | |
3132 | /* |
3133 | * In theory, some of these attributes should be required here |
3134 | * but since they were not used when the command was originally |
3135 | * added, keep them optional for old user space programs to let |
3136 | * them continue to work with drivers that do not need the |
3137 | * additional information -- drivers must check! |
3138 | */ |
3139 | if (info->attrs[NL80211_ATTR_SSID]) { |
3140 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3141 | params.ssid_len = |
3142 | nla_len(info->attrs[NL80211_ATTR_SSID]); |
3143 | if (params.ssid_len == 0 || |
3144 | params.ssid_len > IEEE80211_MAX_SSID_LEN) |
3145 | return -EINVAL; |
3146 | } |
3147 | |
3148 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { |
3149 | params.hidden_ssid = nla_get_u32( |
3150 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); |
3151 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && |
3152 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && |
3153 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) |
3154 | return -EINVAL; |
3155 | } |
3156 | |
3157 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3158 | |
3159 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { |
3160 | params.auth_type = nla_get_u32( |
3161 | info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3162 | if (!nl80211_valid_auth_type(rdev, params.auth_type, |
3163 | NL80211_CMD_START_AP)) |
3164 | return -EINVAL; |
3165 | } else |
3166 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; |
3167 | |
3168 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, |
3169 | NL80211_MAX_NR_CIPHER_SUITES); |
3170 | if (err) |
3171 | return err; |
3172 | |
3173 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
3174 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) |
3175 | return -EOPNOTSUPP; |
3176 | params.inactivity_timeout = nla_get_u16( |
3177 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); |
3178 | } |
3179 | |
3180 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
3181 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3182 | return -EINVAL; |
3183 | params.p2p_ctwindow = |
3184 | nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); |
3185 | if (params.p2p_ctwindow > 127) |
3186 | return -EINVAL; |
3187 | if (params.p2p_ctwindow != 0 && |
3188 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) |
3189 | return -EINVAL; |
3190 | } |
3191 | |
3192 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { |
3193 | u8 tmp; |
3194 | |
3195 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3196 | return -EINVAL; |
3197 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); |
3198 | if (tmp > 1) |
3199 | return -EINVAL; |
3200 | params.p2p_opp_ps = tmp; |
3201 | if (params.p2p_opp_ps != 0 && |
3202 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) |
3203 | return -EINVAL; |
3204 | } |
3205 | |
3206 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
3207 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
3208 | if (err) |
3209 | return err; |
3210 | } else if (wdev->preset_chandef.chan) { |
3211 | params.chandef = wdev->preset_chandef; |
3212 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) |
3213 | return -EINVAL; |
3214 | |
3215 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef)) |
3216 | return -EINVAL; |
3217 | |
3218 | err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef); |
3219 | if (err < 0) |
3220 | return err; |
3221 | if (err) { |
3222 | radar_detect_width = BIT(params.chandef.width); |
3223 | params.radar_required = true; |
3224 | } |
3225 | |
3226 | err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, |
3227 | params.chandef.chan, |
3228 | CHAN_MODE_SHARED, |
3229 | radar_detect_width); |
3230 | if (err) |
3231 | return err; |
3232 | |
3233 | if (info->attrs[NL80211_ATTR_ACL_POLICY]) { |
3234 | params.acl = parse_acl_data(&rdev->wiphy, info); |
3235 | if (IS_ERR(params.acl)) |
3236 | return PTR_ERR(params.acl); |
3237 | } |
3238 | |
3239 | err = rdev_start_ap(rdev, dev, ¶ms); |
3240 | if (!err) { |
3241 | wdev->preset_chandef = params.chandef; |
3242 | wdev->beacon_interval = params.beacon_interval; |
3243 | wdev->channel = params.chandef.chan; |
3244 | wdev->ssid_len = params.ssid_len; |
3245 | memcpy(wdev->ssid, params.ssid, wdev->ssid_len); |
3246 | } |
3247 | |
3248 | kfree(params.acl); |
3249 | |
3250 | return err; |
3251 | } |
3252 | |
3253 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
3254 | { |
3255 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3256 | struct net_device *dev = info->user_ptr[1]; |
3257 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
3258 | struct cfg80211_beacon_data params; |
3259 | int err; |
3260 | |
3261 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
3262 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3263 | return -EOPNOTSUPP; |
3264 | |
3265 | if (!rdev->ops->change_beacon) |
3266 | return -EOPNOTSUPP; |
3267 | |
3268 | if (!wdev->beacon_interval) |
3269 | return -EINVAL; |
3270 | |
3271 | err = nl80211_parse_beacon(info->attrs, ¶ms); |
3272 | if (err) |
3273 | return err; |
3274 | |
3275 | return rdev_change_beacon(rdev, dev, ¶ms); |
3276 | } |
3277 | |
3278 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) |
3279 | { |
3280 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3281 | struct net_device *dev = info->user_ptr[1]; |
3282 | |
3283 | return cfg80211_stop_ap(rdev, dev); |
3284 | } |
3285 | |
3286 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
3287 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, |
3288 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, |
3289 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, |
3290 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
3291 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
3292 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
3293 | }; |
3294 | |
3295 | static int parse_station_flags(struct genl_info *info, |
3296 | enum nl80211_iftype iftype, |
3297 | struct station_parameters *params) |
3298 | { |
3299 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; |
3300 | struct nlattr *nla; |
3301 | int flag; |
3302 | |
3303 | /* |
3304 | * Try parsing the new attribute first so userspace |
3305 | * can specify both for older kernels. |
3306 | */ |
3307 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; |
3308 | if (nla) { |
3309 | struct nl80211_sta_flag_update *sta_flags; |
3310 | |
3311 | sta_flags = nla_data(nla); |
3312 | params->sta_flags_mask = sta_flags->mask; |
3313 | params->sta_flags_set = sta_flags->set; |
3314 | params->sta_flags_set &= params->sta_flags_mask; |
3315 | if ((params->sta_flags_mask | |
3316 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) |
3317 | return -EINVAL; |
3318 | return 0; |
3319 | } |
3320 | |
3321 | /* if present, parse the old attribute */ |
3322 | |
3323 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
3324 | if (!nla) |
3325 | return 0; |
3326 | |
3327 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, |
3328 | nla, sta_flags_policy)) |
3329 | return -EINVAL; |
3330 | |
3331 | /* |
3332 | * Only allow certain flags for interface types so that |
3333 | * other attributes are silently ignored. Remember that |
3334 | * this is backward compatibility code with old userspace |
3335 | * and shouldn't be hit in other cases anyway. |
3336 | */ |
3337 | switch (iftype) { |
3338 | case NL80211_IFTYPE_AP: |
3339 | case NL80211_IFTYPE_AP_VLAN: |
3340 | case NL80211_IFTYPE_P2P_GO: |
3341 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | |
3342 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | |
3343 | BIT(NL80211_STA_FLAG_WME) | |
3344 | BIT(NL80211_STA_FLAG_MFP); |
3345 | break; |
3346 | case NL80211_IFTYPE_P2P_CLIENT: |
3347 | case NL80211_IFTYPE_STATION: |
3348 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | |
3349 | BIT(NL80211_STA_FLAG_TDLS_PEER); |
3350 | break; |
3351 | case NL80211_IFTYPE_MESH_POINT: |
3352 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
3353 | BIT(NL80211_STA_FLAG_MFP) | |
3354 | BIT(NL80211_STA_FLAG_AUTHORIZED); |
3355 | default: |
3356 | return -EINVAL; |
3357 | } |
3358 | |
3359 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
3360 | if (flags[flag]) { |
3361 | params->sta_flags_set |= (1<<flag); |
3362 | |
3363 | /* no longer support new API additions in old API */ |
3364 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) |
3365 | return -EINVAL; |
3366 | } |
3367 | } |
3368 | |
3369 | return 0; |
3370 | } |
3371 | |
3372 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
3373 | int attr) |
3374 | { |
3375 | struct nlattr *rate; |
3376 | u32 bitrate; |
3377 | u16 bitrate_compat; |
3378 | |
3379 | rate = nla_nest_start(msg, attr); |
3380 | if (!rate) |
3381 | return false; |
3382 | |
3383 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
3384 | bitrate = cfg80211_calculate_bitrate(info); |
3385 | /* report 16-bit bitrate only if we can */ |
3386 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; |
3387 | if (bitrate > 0 && |
3388 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) |
3389 | return false; |
3390 | if (bitrate_compat > 0 && |
3391 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) |
3392 | return false; |
3393 | |
3394 | if (info->flags & RATE_INFO_FLAGS_MCS) { |
3395 | if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) |
3396 | return false; |
3397 | if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH && |
3398 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) |
3399 | return false; |
3400 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
3401 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) |
3402 | return false; |
3403 | } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) { |
3404 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs)) |
3405 | return false; |
3406 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss)) |
3407 | return false; |
3408 | if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH && |
3409 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) |
3410 | return false; |
3411 | if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH && |
3412 | nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH)) |
3413 | return false; |
3414 | if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH && |
3415 | nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH)) |
3416 | return false; |
3417 | if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH && |
3418 | nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH)) |
3419 | return false; |
3420 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
3421 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) |
3422 | return false; |
3423 | } |
3424 | |
3425 | nla_nest_end(msg, rate); |
3426 | return true; |
3427 | } |
3428 | |
3429 | static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal, |
3430 | int id) |
3431 | { |
3432 | void *attr; |
3433 | int i = 0; |
3434 | |
3435 | if (!mask) |
3436 | return true; |
3437 | |
3438 | attr = nla_nest_start(msg, id); |
3439 | if (!attr) |
3440 | return false; |
3441 | |
3442 | for (i = 0; i < IEEE80211_MAX_CHAINS; i++) { |
3443 | if (!(mask & BIT(i))) |
3444 | continue; |
3445 | |
3446 | if (nla_put_u8(msg, i, signal[i])) |
3447 | return false; |
3448 | } |
3449 | |
3450 | nla_nest_end(msg, attr); |
3451 | |
3452 | return true; |
3453 | } |
3454 | |
3455 | static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq, |
3456 | int flags, |
3457 | struct cfg80211_registered_device *rdev, |
3458 | struct net_device *dev, |
3459 | const u8 *mac_addr, struct station_info *sinfo) |
3460 | { |
3461 | void *hdr; |
3462 | struct nlattr *sinfoattr, *bss_param; |
3463 | |
3464 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
3465 | if (!hdr) |
3466 | return -1; |
3467 | |
3468 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3469 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || |
3470 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) |
3471 | goto nla_put_failure; |
3472 | |
3473 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
3474 | if (!sinfoattr) |
3475 | goto nla_put_failure; |
3476 | if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) && |
3477 | nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME, |
3478 | sinfo->connected_time)) |
3479 | goto nla_put_failure; |
3480 | if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) && |
3481 | nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME, |
3482 | sinfo->inactive_time)) |
3483 | goto nla_put_failure; |
3484 | if ((sinfo->filled & (STATION_INFO_RX_BYTES | |
3485 | STATION_INFO_RX_BYTES64)) && |
3486 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, |
3487 | (u32)sinfo->rx_bytes)) |
3488 | goto nla_put_failure; |
3489 | if ((sinfo->filled & (STATION_INFO_TX_BYTES | |
3490 | STATION_INFO_TX_BYTES64)) && |
3491 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, |
3492 | (u32)sinfo->tx_bytes)) |
3493 | goto nla_put_failure; |
3494 | if ((sinfo->filled & STATION_INFO_RX_BYTES64) && |
3495 | nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64, |
3496 | sinfo->rx_bytes)) |
3497 | goto nla_put_failure; |
3498 | if ((sinfo->filled & STATION_INFO_TX_BYTES64) && |
3499 | nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64, |
3500 | sinfo->tx_bytes)) |
3501 | goto nla_put_failure; |
3502 | if ((sinfo->filled & STATION_INFO_LLID) && |
3503 | nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid)) |
3504 | goto nla_put_failure; |
3505 | if ((sinfo->filled & STATION_INFO_PLID) && |
3506 | nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid)) |
3507 | goto nla_put_failure; |
3508 | if ((sinfo->filled & STATION_INFO_PLINK_STATE) && |
3509 | nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE, |
3510 | sinfo->plink_state)) |
3511 | goto nla_put_failure; |
3512 | switch (rdev->wiphy.signal_type) { |
3513 | case CFG80211_SIGNAL_TYPE_MBM: |
3514 | if ((sinfo->filled & STATION_INFO_SIGNAL) && |
3515 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL, |
3516 | sinfo->signal)) |
3517 | goto nla_put_failure; |
3518 | if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) && |
3519 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG, |
3520 | sinfo->signal_avg)) |
3521 | goto nla_put_failure; |
3522 | break; |
3523 | default: |
3524 | break; |
3525 | } |
3526 | if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) { |
3527 | if (!nl80211_put_signal(msg, sinfo->chains, |
3528 | sinfo->chain_signal, |
3529 | NL80211_STA_INFO_CHAIN_SIGNAL)) |
3530 | goto nla_put_failure; |
3531 | } |
3532 | if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) { |
3533 | if (!nl80211_put_signal(msg, sinfo->chains, |
3534 | sinfo->chain_signal_avg, |
3535 | NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) |
3536 | goto nla_put_failure; |
3537 | } |
3538 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
3539 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
3540 | NL80211_STA_INFO_TX_BITRATE)) |
3541 | goto nla_put_failure; |
3542 | } |
3543 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { |
3544 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, |
3545 | NL80211_STA_INFO_RX_BITRATE)) |
3546 | goto nla_put_failure; |
3547 | } |
3548 | if ((sinfo->filled & STATION_INFO_RX_PACKETS) && |
3549 | nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS, |
3550 | sinfo->rx_packets)) |
3551 | goto nla_put_failure; |
3552 | if ((sinfo->filled & STATION_INFO_TX_PACKETS) && |
3553 | nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS, |
3554 | sinfo->tx_packets)) |
3555 | goto nla_put_failure; |
3556 | if ((sinfo->filled & STATION_INFO_TX_RETRIES) && |
3557 | nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES, |
3558 | sinfo->tx_retries)) |
3559 | goto nla_put_failure; |
3560 | if ((sinfo->filled & STATION_INFO_TX_FAILED) && |
3561 | nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, |
3562 | sinfo->tx_failed)) |
3563 | goto nla_put_failure; |
3564 | if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && |
3565 | nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, |
3566 | sinfo->beacon_loss_count)) |
3567 | goto nla_put_failure; |
3568 | if ((sinfo->filled & STATION_INFO_LOCAL_PM) && |
3569 | nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM, |
3570 | sinfo->local_pm)) |
3571 | goto nla_put_failure; |
3572 | if ((sinfo->filled & STATION_INFO_PEER_PM) && |
3573 | nla_put_u32(msg, NL80211_STA_INFO_PEER_PM, |
3574 | sinfo->peer_pm)) |
3575 | goto nla_put_failure; |
3576 | if ((sinfo->filled & STATION_INFO_NONPEER_PM) && |
3577 | nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM, |
3578 | sinfo->nonpeer_pm)) |
3579 | goto nla_put_failure; |
3580 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { |
3581 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); |
3582 | if (!bss_param) |
3583 | goto nla_put_failure; |
3584 | |
3585 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
3586 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || |
3587 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && |
3588 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || |
3589 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && |
3590 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || |
3591 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, |
3592 | sinfo->bss_param.dtim_period) || |
3593 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, |
3594 | sinfo->bss_param.beacon_interval)) |
3595 | goto nla_put_failure; |
3596 | |
3597 | nla_nest_end(msg, bss_param); |
3598 | } |
3599 | if ((sinfo->filled & STATION_INFO_STA_FLAGS) && |
3600 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, |
3601 | sizeof(struct nl80211_sta_flag_update), |
3602 | &sinfo->sta_flags)) |
3603 | goto nla_put_failure; |
3604 | if ((sinfo->filled & STATION_INFO_T_OFFSET) && |
3605 | nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET, |
3606 | sinfo->t_offset)) |
3607 | goto nla_put_failure; |
3608 | nla_nest_end(msg, sinfoattr); |
3609 | |
3610 | if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) && |
3611 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, |
3612 | sinfo->assoc_req_ies)) |
3613 | goto nla_put_failure; |
3614 | |
3615 | return genlmsg_end(msg, hdr); |
3616 | |
3617 | nla_put_failure: |
3618 | genlmsg_cancel(msg, hdr); |
3619 | return -EMSGSIZE; |
3620 | } |
3621 | |
3622 | static int nl80211_dump_station(struct sk_buff *skb, |
3623 | struct netlink_callback *cb) |
3624 | { |
3625 | struct station_info sinfo; |
3626 | struct cfg80211_registered_device *dev; |
3627 | struct wireless_dev *wdev; |
3628 | u8 mac_addr[ETH_ALEN]; |
3629 | int sta_idx = cb->args[2]; |
3630 | int err; |
3631 | |
3632 | err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev); |
3633 | if (err) |
3634 | return err; |
3635 | |
3636 | if (!wdev->netdev) { |
3637 | err = -EINVAL; |
3638 | goto out_err; |
3639 | } |
3640 | |
3641 | if (!dev->ops->dump_station) { |
3642 | err = -EOPNOTSUPP; |
3643 | goto out_err; |
3644 | } |
3645 | |
3646 | while (1) { |
3647 | memset(&sinfo, 0, sizeof(sinfo)); |
3648 | err = rdev_dump_station(dev, wdev->netdev, sta_idx, |
3649 | mac_addr, &sinfo); |
3650 | if (err == -ENOENT) |
3651 | break; |
3652 | if (err) |
3653 | goto out_err; |
3654 | |
3655 | if (nl80211_send_station(skb, |
3656 | NETLINK_CB(cb->skb).portid, |
3657 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
3658 | dev, wdev->netdev, mac_addr, |
3659 | &sinfo) < 0) |
3660 | goto out; |
3661 | |
3662 | sta_idx++; |
3663 | } |
3664 | |
3665 | |
3666 | out: |
3667 | cb->args[2] = sta_idx; |
3668 | err = skb->len; |
3669 | out_err: |
3670 | nl80211_finish_wdev_dump(dev); |
3671 | |
3672 | return err; |
3673 | } |
3674 | |
3675 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
3676 | { |
3677 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3678 | struct net_device *dev = info->user_ptr[1]; |
3679 | struct station_info sinfo; |
3680 | struct sk_buff *msg; |
3681 | u8 *mac_addr = NULL; |
3682 | int err; |
3683 | |
3684 | memset(&sinfo, 0, sizeof(sinfo)); |
3685 | |
3686 | if (!info->attrs[NL80211_ATTR_MAC]) |
3687 | return -EINVAL; |
3688 | |
3689 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
3690 | |
3691 | if (!rdev->ops->get_station) |
3692 | return -EOPNOTSUPP; |
3693 | |
3694 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
3695 | if (err) |
3696 | return err; |
3697 | |
3698 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3699 | if (!msg) |
3700 | return -ENOMEM; |
3701 | |
3702 | if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0, |
3703 | rdev, dev, mac_addr, &sinfo) < 0) { |
3704 | nlmsg_free(msg); |
3705 | return -ENOBUFS; |
3706 | } |
3707 | |
3708 | return genlmsg_reply(msg, info); |
3709 | } |
3710 | |
3711 | int cfg80211_check_station_change(struct wiphy *wiphy, |
3712 | struct station_parameters *params, |
3713 | enum cfg80211_station_type statype) |
3714 | { |
3715 | if (params->listen_interval != -1) |
3716 | return -EINVAL; |
3717 | if (params->aid) |
3718 | return -EINVAL; |
3719 | |
3720 | /* When you run into this, adjust the code below for the new flag */ |
3721 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); |
3722 | |
3723 | switch (statype) { |
3724 | case CFG80211_STA_MESH_PEER_KERNEL: |
3725 | case CFG80211_STA_MESH_PEER_USER: |
3726 | /* |
3727 | * No ignoring the TDLS flag here -- the userspace mesh |
3728 | * code doesn't have the bug of including TDLS in the |
3729 | * mask everywhere. |
3730 | */ |
3731 | if (params->sta_flags_mask & |
3732 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
3733 | BIT(NL80211_STA_FLAG_MFP) | |
3734 | BIT(NL80211_STA_FLAG_AUTHORIZED))) |
3735 | return -EINVAL; |
3736 | break; |
3737 | case CFG80211_STA_TDLS_PEER_SETUP: |
3738 | case CFG80211_STA_TDLS_PEER_ACTIVE: |
3739 | if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) |
3740 | return -EINVAL; |
3741 | /* ignore since it can't change */ |
3742 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); |
3743 | break; |
3744 | default: |
3745 | /* disallow mesh-specific things */ |
3746 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) |
3747 | return -EINVAL; |
3748 | if (params->local_pm) |
3749 | return -EINVAL; |
3750 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) |
3751 | return -EINVAL; |
3752 | } |
3753 | |
3754 | if (statype != CFG80211_STA_TDLS_PEER_SETUP && |
3755 | statype != CFG80211_STA_TDLS_PEER_ACTIVE) { |
3756 | /* TDLS can't be set, ... */ |
3757 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
3758 | return -EINVAL; |
3759 | /* |
3760 | * ... but don't bother the driver with it. This works around |
3761 | * a hostapd/wpa_supplicant issue -- it always includes the |
3762 | * TLDS_PEER flag in the mask even for AP mode. |
3763 | */ |
3764 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); |
3765 | } |
3766 | |
3767 | if (statype != CFG80211_STA_TDLS_PEER_SETUP) { |
3768 | /* reject other things that can't change */ |
3769 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) |
3770 | return -EINVAL; |
3771 | if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY) |
3772 | return -EINVAL; |
3773 | if (params->supported_rates) |
3774 | return -EINVAL; |
3775 | if (params->ext_capab || params->ht_capa || params->vht_capa) |
3776 | return -EINVAL; |
3777 | } |
3778 | |
3779 | if (statype != CFG80211_STA_AP_CLIENT) { |
3780 | if (params->vlan) |
3781 | return -EINVAL; |
3782 | } |
3783 | |
3784 | switch (statype) { |
3785 | case CFG80211_STA_AP_MLME_CLIENT: |
3786 | /* Use this only for authorizing/unauthorizing a station */ |
3787 | if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) |
3788 | return -EOPNOTSUPP; |
3789 | break; |
3790 | case CFG80211_STA_AP_CLIENT: |
3791 | /* accept only the listed bits */ |
3792 | if (params->sta_flags_mask & |
3793 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | |
3794 | BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
3795 | BIT(NL80211_STA_FLAG_ASSOCIATED) | |
3796 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | |
3797 | BIT(NL80211_STA_FLAG_WME) | |
3798 | BIT(NL80211_STA_FLAG_MFP))) |
3799 | return -EINVAL; |
3800 | |
3801 | /* but authenticated/associated only if driver handles it */ |
3802 | if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) && |
3803 | params->sta_flags_mask & |
3804 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
3805 | BIT(NL80211_STA_FLAG_ASSOCIATED))) |
3806 | return -EINVAL; |
3807 | break; |
3808 | case CFG80211_STA_IBSS: |
3809 | case CFG80211_STA_AP_STA: |
3810 | /* reject any changes other than AUTHORIZED */ |
3811 | if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) |
3812 | return -EINVAL; |
3813 | break; |
3814 | case CFG80211_STA_TDLS_PEER_SETUP: |
3815 | /* reject any changes other than AUTHORIZED or WME */ |
3816 | if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | |
3817 | BIT(NL80211_STA_FLAG_WME))) |
3818 | return -EINVAL; |
3819 | /* force (at least) rates when authorizing */ |
3820 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) && |
3821 | !params->supported_rates) |
3822 | return -EINVAL; |
3823 | break; |
3824 | case CFG80211_STA_TDLS_PEER_ACTIVE: |
3825 | /* reject any changes */ |
3826 | return -EINVAL; |
3827 | case CFG80211_STA_MESH_PEER_KERNEL: |
3828 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) |
3829 | return -EINVAL; |
3830 | break; |
3831 | case CFG80211_STA_MESH_PEER_USER: |
3832 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) |
3833 | return -EINVAL; |
3834 | break; |
3835 | } |
3836 | |
3837 | return 0; |
3838 | } |
3839 | EXPORT_SYMBOL(cfg80211_check_station_change); |
3840 | |
3841 | /* |
3842 | * Get vlan interface making sure it is running and on the right wiphy. |
3843 | */ |
3844 | static struct net_device *get_vlan(struct genl_info *info, |
3845 | struct cfg80211_registered_device *rdev) |
3846 | { |
3847 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
3848 | struct net_device *v; |
3849 | int ret; |
3850 | |
3851 | if (!vlanattr) |
3852 | return NULL; |
3853 | |
3854 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); |
3855 | if (!v) |
3856 | return ERR_PTR(-ENODEV); |
3857 | |
3858 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { |
3859 | ret = -EINVAL; |
3860 | goto error; |
3861 | } |
3862 | |
3863 | if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
3864 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
3865 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { |
3866 | ret = -EINVAL; |
3867 | goto error; |
3868 | } |
3869 | |
3870 | if (!netif_running(v)) { |
3871 | ret = -ENETDOWN; |
3872 | goto error; |
3873 | } |
3874 | |
3875 | return v; |
3876 | error: |
3877 | dev_put(v); |
3878 | return ERR_PTR(ret); |
3879 | } |
3880 | |
3881 | static struct nla_policy |
3882 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { |
3883 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, |
3884 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, |
3885 | }; |
3886 | |
3887 | static int nl80211_parse_sta_wme(struct genl_info *info, |
3888 | struct station_parameters *params) |
3889 | { |
3890 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; |
3891 | struct nlattr *nla; |
3892 | int err; |
3893 | |
3894 | /* parse WME attributes if present */ |
3895 | if (!info->attrs[NL80211_ATTR_STA_WME]) |
3896 | return 0; |
3897 | |
3898 | nla = info->attrs[NL80211_ATTR_STA_WME]; |
3899 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, |
3900 | nl80211_sta_wme_policy); |
3901 | if (err) |
3902 | return err; |
3903 | |
3904 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) |
3905 | params->uapsd_queues = nla_get_u8( |
3906 | tb[NL80211_STA_WME_UAPSD_QUEUES]); |
3907 | if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) |
3908 | return -EINVAL; |
3909 | |
3910 | if (tb[NL80211_STA_WME_MAX_SP]) |
3911 | params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); |
3912 | |
3913 | if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) |
3914 | return -EINVAL; |
3915 | |
3916 | params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; |
3917 | |
3918 | return 0; |
3919 | } |
3920 | |
3921 | static int nl80211_parse_sta_channel_info(struct genl_info *info, |
3922 | struct station_parameters *params) |
3923 | { |
3924 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) { |
3925 | params->supported_channels = |
3926 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); |
3927 | params->supported_channels_len = |
3928 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); |
3929 | /* |
3930 | * Need to include at least one (first channel, number of |
3931 | * channels) tuple for each subband, and must have proper |
3932 | * tuples for the rest of the data as well. |
3933 | */ |
3934 | if (params->supported_channels_len < 2) |
3935 | return -EINVAL; |
3936 | if (params->supported_channels_len % 2) |
3937 | return -EINVAL; |
3938 | } |
3939 | |
3940 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) { |
3941 | params->supported_oper_classes = |
3942 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); |
3943 | params->supported_oper_classes_len = |
3944 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); |
3945 | /* |
3946 | * The value of the Length field of the Supported Operating |
3947 | * Classes element is between 2 and 253. |
3948 | */ |
3949 | if (params->supported_oper_classes_len < 2 || |
3950 | params->supported_oper_classes_len > 253) |
3951 | return -EINVAL; |
3952 | } |
3953 | return 0; |
3954 | } |
3955 | |
3956 | static int nl80211_set_station_tdls(struct genl_info *info, |
3957 | struct station_parameters *params) |
3958 | { |
3959 | int err; |
3960 | /* Dummy STA entry gets updated once the peer capabilities are known */ |
3961 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
3962 | params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); |
3963 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
3964 | params->ht_capa = |
3965 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); |
3966 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
3967 | params->vht_capa = |
3968 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); |
3969 | |
3970 | err = nl80211_parse_sta_channel_info(info, params); |
3971 | if (err) |
3972 | return err; |
3973 | |
3974 | return nl80211_parse_sta_wme(info, params); |
3975 | } |
3976 | |
3977 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) |
3978 | { |
3979 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3980 | struct net_device *dev = info->user_ptr[1]; |
3981 | struct station_parameters params; |
3982 | u8 *mac_addr; |
3983 | int err; |
3984 | |
3985 | memset(¶ms, 0, sizeof(params)); |
3986 | |
3987 | params.listen_interval = -1; |
3988 | |
3989 | if (!rdev->ops->change_station) |
3990 | return -EOPNOTSUPP; |
3991 | |
3992 | if (info->attrs[NL80211_ATTR_STA_AID]) |
3993 | return -EINVAL; |
3994 | |
3995 | if (!info->attrs[NL80211_ATTR_MAC]) |
3996 | return -EINVAL; |
3997 | |
3998 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
3999 | |
4000 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { |
4001 | params.supported_rates = |
4002 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
4003 | params.supported_rates_len = |
4004 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
4005 | } |
4006 | |
4007 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4008 | params.capability = |
4009 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); |
4010 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; |
4011 | } |
4012 | |
4013 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { |
4014 | params.ext_capab = |
4015 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
4016 | params.ext_capab_len = |
4017 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
4018 | } |
4019 | |
4020 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
4021 | return -EINVAL; |
4022 | |
4023 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
4024 | return -EINVAL; |
4025 | |
4026 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
4027 | params.plink_action = |
4028 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4029 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) |
4030 | return -EINVAL; |
4031 | } |
4032 | |
4033 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) { |
4034 | params.plink_state = |
4035 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); |
4036 | if (params.plink_state >= NUM_NL80211_PLINK_STATES) |
4037 | return -EINVAL; |
4038 | params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE; |
4039 | } |
4040 | |
4041 | if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) { |
4042 | enum nl80211_mesh_power_mode pm = nla_get_u32( |
4043 | info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]); |
4044 | |
4045 | if (pm <= NL80211_MESH_POWER_UNKNOWN || |
4046 | pm > NL80211_MESH_POWER_MAX) |
4047 | return -EINVAL; |
4048 | |
4049 | params.local_pm = pm; |
4050 | } |
4051 | |
4052 | /* Include parameters for TDLS peer (will check later) */ |
4053 | err = nl80211_set_station_tdls(info, ¶ms); |
4054 | if (err) |
4055 | return err; |
4056 | |
4057 | params.vlan = get_vlan(info, rdev); |
4058 | if (IS_ERR(params.vlan)) |
4059 | return PTR_ERR(params.vlan); |
4060 | |
4061 | switch (dev->ieee80211_ptr->iftype) { |
4062 | case NL80211_IFTYPE_AP: |
4063 | case NL80211_IFTYPE_AP_VLAN: |
4064 | case NL80211_IFTYPE_P2P_GO: |
4065 | case NL80211_IFTYPE_P2P_CLIENT: |
4066 | case NL80211_IFTYPE_STATION: |
4067 | case NL80211_IFTYPE_ADHOC: |
4068 | case NL80211_IFTYPE_MESH_POINT: |
4069 | break; |
4070 | default: |
4071 | err = -EOPNOTSUPP; |
4072 | goto out_put_vlan; |
4073 | } |
4074 | |
4075 | /* driver will call cfg80211_check_station_change() */ |
4076 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); |
4077 | |
4078 | out_put_vlan: |
4079 | if (params.vlan) |
4080 | dev_put(params.vlan); |
4081 | |
4082 | return err; |
4083 | } |
4084 | |
4085 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
4086 | { |
4087 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4088 | int err; |
4089 | struct net_device *dev = info->user_ptr[1]; |
4090 | struct station_parameters params; |
4091 | u8 *mac_addr = NULL; |
4092 | |
4093 | memset(¶ms, 0, sizeof(params)); |
4094 | |
4095 | if (!rdev->ops->add_station) |
4096 | return -EOPNOTSUPP; |
4097 | |
4098 | if (!info->attrs[NL80211_ATTR_MAC]) |
4099 | return -EINVAL; |
4100 | |
4101 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
4102 | return -EINVAL; |
4103 | |
4104 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) |
4105 | return -EINVAL; |
4106 | |
4107 | if (!info->attrs[NL80211_ATTR_STA_AID] && |
4108 | !info->attrs[NL80211_ATTR_PEER_AID]) |
4109 | return -EINVAL; |
4110 | |
4111 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4112 | params.supported_rates = |
4113 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
4114 | params.supported_rates_len = |
4115 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
4116 | params.listen_interval = |
4117 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); |
4118 | |
4119 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
4120 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); |
4121 | else |
4122 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
4123 | if (!params.aid || params.aid > IEEE80211_MAX_AID) |
4124 | return -EINVAL; |
4125 | |
4126 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4127 | params.capability = |
4128 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); |
4129 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; |
4130 | } |
4131 | |
4132 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { |
4133 | params.ext_capab = |
4134 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
4135 | params.ext_capab_len = |
4136 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); |
4137 | } |
4138 | |
4139 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
4140 | params.ht_capa = |
4141 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); |
4142 | |
4143 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
4144 | params.vht_capa = |
4145 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); |
4146 | |
4147 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
4148 | params.plink_action = |
4149 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4150 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) |
4151 | return -EINVAL; |
4152 | } |
4153 | |
4154 | err = nl80211_parse_sta_channel_info(info, ¶ms); |
4155 | if (err) |
4156 | return err; |
4157 | |
4158 | err = nl80211_parse_sta_wme(info, ¶ms); |
4159 | if (err) |
4160 | return err; |
4161 | |
4162 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
4163 | return -EINVAL; |
4164 | |
4165 | /* When you run into this, adjust the code below for the new flag */ |
4166 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); |
4167 | |
4168 | switch (dev->ieee80211_ptr->iftype) { |
4169 | case NL80211_IFTYPE_AP: |
4170 | case NL80211_IFTYPE_AP_VLAN: |
4171 | case NL80211_IFTYPE_P2P_GO: |
4172 | /* ignore WME attributes if iface/sta is not capable */ |
4173 | if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) || |
4174 | !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) |
4175 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; |
4176 | |
4177 | /* TDLS peers cannot be added */ |
4178 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4179 | info->attrs[NL80211_ATTR_PEER_AID]) |
4180 | return -EINVAL; |
4181 | /* but don't bother the driver with it */ |
4182 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); |
4183 | |
4184 | /* allow authenticated/associated only if driver handles it */ |
4185 | if (!(rdev->wiphy.features & |
4186 | NL80211_FEATURE_FULL_AP_CLIENT_STATE) && |
4187 | params.sta_flags_mask & |
4188 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
4189 | BIT(NL80211_STA_FLAG_ASSOCIATED))) |
4190 | return -EINVAL; |
4191 | |
4192 | /* must be last in here for error handling */ |
4193 | params.vlan = get_vlan(info, rdev); |
4194 | if (IS_ERR(params.vlan)) |
4195 | return PTR_ERR(params.vlan); |
4196 | break; |
4197 | case NL80211_IFTYPE_MESH_POINT: |
4198 | /* ignore uAPSD data */ |
4199 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; |
4200 | |
4201 | /* associated is disallowed */ |
4202 | if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) |
4203 | return -EINVAL; |
4204 | /* TDLS peers cannot be added */ |
4205 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4206 | info->attrs[NL80211_ATTR_PEER_AID]) |
4207 | return -EINVAL; |
4208 | break; |
4209 | case NL80211_IFTYPE_STATION: |
4210 | case NL80211_IFTYPE_P2P_CLIENT: |
4211 | /* ignore uAPSD data */ |
4212 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; |
4213 | |
4214 | /* these are disallowed */ |
4215 | if (params.sta_flags_mask & |
4216 | (BIT(NL80211_STA_FLAG_ASSOCIATED) | |
4217 | BIT(NL80211_STA_FLAG_AUTHENTICATED))) |
4218 | return -EINVAL; |
4219 | /* Only TDLS peers can be added */ |
4220 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) |
4221 | return -EINVAL; |
4222 | /* Can only add if TDLS ... */ |
4223 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) |
4224 | return -EOPNOTSUPP; |
4225 | /* ... with external setup is supported */ |
4226 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) |
4227 | return -EOPNOTSUPP; |
4228 | /* |
4229 | * Older wpa_supplicant versions always mark the TDLS peer |
4230 | * as authorized, but it shouldn't yet be. |
4231 | */ |
4232 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED); |
4233 | break; |
4234 | default: |
4235 | return -EOPNOTSUPP; |
4236 | } |
4237 | |
4238 | /* be aware of params.vlan when changing code here */ |
4239 | |
4240 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); |
4241 | |
4242 | if (params.vlan) |
4243 | dev_put(params.vlan); |
4244 | return err; |
4245 | } |
4246 | |
4247 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) |
4248 | { |
4249 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4250 | struct net_device *dev = info->user_ptr[1]; |
4251 | u8 *mac_addr = NULL; |
4252 | |
4253 | if (info->attrs[NL80211_ATTR_MAC]) |
4254 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4255 | |
4256 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4257 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
4258 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4259 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4260 | return -EINVAL; |
4261 | |
4262 | if (!rdev->ops->del_station) |
4263 | return -EOPNOTSUPP; |
4264 | |
4265 | return rdev_del_station(rdev, dev, mac_addr); |
4266 | } |
4267 | |
4268 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
4269 | int flags, struct net_device *dev, |
4270 | u8 *dst, u8 *next_hop, |
4271 | struct mpath_info *pinfo) |
4272 | { |
4273 | void *hdr; |
4274 | struct nlattr *pinfoattr; |
4275 | |
4276 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
4277 | if (!hdr) |
4278 | return -1; |
4279 | |
4280 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
4281 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || |
4282 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || |
4283 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) |
4284 | goto nla_put_failure; |
4285 | |
4286 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
4287 | if (!pinfoattr) |
4288 | goto nla_put_failure; |
4289 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
4290 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, |
4291 | pinfo->frame_qlen)) |
4292 | goto nla_put_failure; |
4293 | if (((pinfo->filled & MPATH_INFO_SN) && |
4294 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || |
4295 | ((pinfo->filled & MPATH_INFO_METRIC) && |
4296 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, |
4297 | pinfo->metric)) || |
4298 | ((pinfo->filled & MPATH_INFO_EXPTIME) && |
4299 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, |
4300 | pinfo->exptime)) || |
4301 | ((pinfo->filled & MPATH_INFO_FLAGS) && |
4302 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, |
4303 | pinfo->flags)) || |
4304 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && |
4305 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, |
4306 | pinfo->discovery_timeout)) || |
4307 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && |
4308 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, |
4309 | pinfo->discovery_retries))) |
4310 | goto nla_put_failure; |
4311 | |
4312 | nla_nest_end(msg, pinfoattr); |
4313 | |
4314 | return genlmsg_end(msg, hdr); |
4315 | |
4316 | nla_put_failure: |
4317 | genlmsg_cancel(msg, hdr); |
4318 | return -EMSGSIZE; |
4319 | } |
4320 | |
4321 | static int nl80211_dump_mpath(struct sk_buff *skb, |
4322 | struct netlink_callback *cb) |
4323 | { |
4324 | struct mpath_info pinfo; |
4325 | struct cfg80211_registered_device *dev; |
4326 | struct wireless_dev *wdev; |
4327 | u8 dst[ETH_ALEN]; |
4328 | u8 next_hop[ETH_ALEN]; |
4329 | int path_idx = cb->args[2]; |
4330 | int err; |
4331 | |
4332 | err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev); |
4333 | if (err) |
4334 | return err; |
4335 | |
4336 | if (!dev->ops->dump_mpath) { |
4337 | err = -EOPNOTSUPP; |
4338 | goto out_err; |
4339 | } |
4340 | |
4341 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { |
4342 | err = -EOPNOTSUPP; |
4343 | goto out_err; |
4344 | } |
4345 | |
4346 | while (1) { |
4347 | err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst, |
4348 | next_hop, &pinfo); |
4349 | if (err == -ENOENT) |
4350 | break; |
4351 | if (err) |
4352 | goto out_err; |
4353 | |
4354 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
4355 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
4356 | wdev->netdev, dst, next_hop, |
4357 | &pinfo) < 0) |
4358 | goto out; |
4359 | |
4360 | path_idx++; |
4361 | } |
4362 | |
4363 | |
4364 | out: |
4365 | cb->args[2] = path_idx; |
4366 | err = skb->len; |
4367 | out_err: |
4368 | nl80211_finish_wdev_dump(dev); |
4369 | return err; |
4370 | } |
4371 | |
4372 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) |
4373 | { |
4374 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4375 | int err; |
4376 | struct net_device *dev = info->user_ptr[1]; |
4377 | struct mpath_info pinfo; |
4378 | struct sk_buff *msg; |
4379 | u8 *dst = NULL; |
4380 | u8 next_hop[ETH_ALEN]; |
4381 | |
4382 | memset(&pinfo, 0, sizeof(pinfo)); |
4383 | |
4384 | if (!info->attrs[NL80211_ATTR_MAC]) |
4385 | return -EINVAL; |
4386 | |
4387 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4388 | |
4389 | if (!rdev->ops->get_mpath) |
4390 | return -EOPNOTSUPP; |
4391 | |
4392 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4393 | return -EOPNOTSUPP; |
4394 | |
4395 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); |
4396 | if (err) |
4397 | return err; |
4398 | |
4399 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4400 | if (!msg) |
4401 | return -ENOMEM; |
4402 | |
4403 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
4404 | dev, dst, next_hop, &pinfo) < 0) { |
4405 | nlmsg_free(msg); |
4406 | return -ENOBUFS; |
4407 | } |
4408 | |
4409 | return genlmsg_reply(msg, info); |
4410 | } |
4411 | |
4412 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) |
4413 | { |
4414 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4415 | struct net_device *dev = info->user_ptr[1]; |
4416 | u8 *dst = NULL; |
4417 | u8 *next_hop = NULL; |
4418 | |
4419 | if (!info->attrs[NL80211_ATTR_MAC]) |
4420 | return -EINVAL; |
4421 | |
4422 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) |
4423 | return -EINVAL; |
4424 | |
4425 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4426 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); |
4427 | |
4428 | if (!rdev->ops->change_mpath) |
4429 | return -EOPNOTSUPP; |
4430 | |
4431 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4432 | return -EOPNOTSUPP; |
4433 | |
4434 | return rdev_change_mpath(rdev, dev, dst, next_hop); |
4435 | } |
4436 | |
4437 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
4438 | { |
4439 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4440 | struct net_device *dev = info->user_ptr[1]; |
4441 | u8 *dst = NULL; |
4442 | u8 *next_hop = NULL; |
4443 | |
4444 | if (!info->attrs[NL80211_ATTR_MAC]) |
4445 | return -EINVAL; |
4446 | |
4447 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) |
4448 | return -EINVAL; |
4449 | |
4450 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4451 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); |
4452 | |
4453 | if (!rdev->ops->add_mpath) |
4454 | return -EOPNOTSUPP; |
4455 | |
4456 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4457 | return -EOPNOTSUPP; |
4458 | |
4459 | return rdev_add_mpath(rdev, dev, dst, next_hop); |
4460 | } |
4461 | |
4462 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) |
4463 | { |
4464 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4465 | struct net_device *dev = info->user_ptr[1]; |
4466 | u8 *dst = NULL; |
4467 | |
4468 | if (info->attrs[NL80211_ATTR_MAC]) |
4469 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4470 | |
4471 | if (!rdev->ops->del_mpath) |
4472 | return -EOPNOTSUPP; |
4473 | |
4474 | return rdev_del_mpath(rdev, dev, dst); |
4475 | } |
4476 | |
4477 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
4478 | { |
4479 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4480 | struct net_device *dev = info->user_ptr[1]; |
4481 | struct bss_parameters params; |
4482 | |
4483 | memset(¶ms, 0, sizeof(params)); |
4484 | /* default to not changing parameters */ |
4485 | params.use_cts_prot = -1; |
4486 | params.use_short_preamble = -1; |
4487 | params.use_short_slot_time = -1; |
4488 | params.ap_isolate = -1; |
4489 | params.ht_opmode = -1; |
4490 | params.p2p_ctwindow = -1; |
4491 | params.p2p_opp_ps = -1; |
4492 | |
4493 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) |
4494 | params.use_cts_prot = |
4495 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); |
4496 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) |
4497 | params.use_short_preamble = |
4498 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); |
4499 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) |
4500 | params.use_short_slot_time = |
4501 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); |
4502 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
4503 | params.basic_rates = |
4504 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
4505 | params.basic_rates_len = |
4506 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
4507 | } |
4508 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
4509 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); |
4510 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
4511 | params.ht_opmode = |
4512 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); |
4513 | |
4514 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
4515 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4516 | return -EINVAL; |
4517 | params.p2p_ctwindow = |
4518 | nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); |
4519 | if (params.p2p_ctwindow < 0) |
4520 | return -EINVAL; |
4521 | if (params.p2p_ctwindow != 0 && |
4522 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) |
4523 | return -EINVAL; |
4524 | } |
4525 | |
4526 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { |
4527 | u8 tmp; |
4528 | |
4529 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4530 | return -EINVAL; |
4531 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); |
4532 | if (tmp > 1) |
4533 | return -EINVAL; |
4534 | params.p2p_opp_ps = tmp; |
4535 | if (params.p2p_opp_ps && |
4536 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) |
4537 | return -EINVAL; |
4538 | } |
4539 | |
4540 | if (!rdev->ops->change_bss) |
4541 | return -EOPNOTSUPP; |
4542 | |
4543 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4544 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4545 | return -EOPNOTSUPP; |
4546 | |
4547 | return rdev_change_bss(rdev, dev, ¶ms); |
4548 | } |
4549 | |
4550 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
4551 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
4552 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, |
4553 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, |
4554 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, |
4555 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, |
4556 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, |
4557 | }; |
4558 | |
4559 | static int parse_reg_rule(struct nlattr *tb[], |
4560 | struct ieee80211_reg_rule *reg_rule) |
4561 | { |
4562 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; |
4563 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; |
4564 | |
4565 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) |
4566 | return -EINVAL; |
4567 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) |
4568 | return -EINVAL; |
4569 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) |
4570 | return -EINVAL; |
4571 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) |
4572 | return -EINVAL; |
4573 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) |
4574 | return -EINVAL; |
4575 | |
4576 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); |
4577 | |
4578 | freq_range->start_freq_khz = |
4579 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); |
4580 | freq_range->end_freq_khz = |
4581 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); |
4582 | freq_range->max_bandwidth_khz = |
4583 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); |
4584 | |
4585 | power_rule->max_eirp = |
4586 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); |
4587 | |
4588 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) |
4589 | power_rule->max_antenna_gain = |
4590 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); |
4591 | |
4592 | return 0; |
4593 | } |
4594 | |
4595 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) |
4596 | { |
4597 | int r; |
4598 | char *data = NULL; |
4599 | enum nl80211_user_reg_hint_type user_reg_hint_type; |
4600 | |
4601 | /* |
4602 | * You should only get this when cfg80211 hasn't yet initialized |
4603 | * completely when built-in to the kernel right between the time |
4604 | * window between nl80211_init() and regulatory_init(), if that is |
4605 | * even possible. |
4606 | */ |
4607 | if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) |
4608 | return -EINPROGRESS; |
4609 | |
4610 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
4611 | return -EINVAL; |
4612 | |
4613 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); |
4614 | |
4615 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
4616 | user_reg_hint_type = |
4617 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); |
4618 | else |
4619 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; |
4620 | |
4621 | switch (user_reg_hint_type) { |
4622 | case NL80211_USER_REG_HINT_USER: |
4623 | case NL80211_USER_REG_HINT_CELL_BASE: |
4624 | break; |
4625 | default: |
4626 | return -EINVAL; |
4627 | } |
4628 | |
4629 | r = regulatory_hint_user(data, user_reg_hint_type); |
4630 | |
4631 | return r; |
4632 | } |
4633 | |
4634 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
4635 | struct genl_info *info) |
4636 | { |
4637 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4638 | struct net_device *dev = info->user_ptr[1]; |
4639 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
4640 | struct mesh_config cur_params; |
4641 | int err = 0; |
4642 | void *hdr; |
4643 | struct nlattr *pinfoattr; |
4644 | struct sk_buff *msg; |
4645 | |
4646 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
4647 | return -EOPNOTSUPP; |
4648 | |
4649 | if (!rdev->ops->get_mesh_config) |
4650 | return -EOPNOTSUPP; |
4651 | |
4652 | wdev_lock(wdev); |
4653 | /* If not connected, get default parameters */ |
4654 | if (!wdev->mesh_id_len) |
4655 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); |
4656 | else |
4657 | err = rdev_get_mesh_config(rdev, dev, &cur_params); |
4658 | wdev_unlock(wdev); |
4659 | |
4660 | if (err) |
4661 | return err; |
4662 | |
4663 | /* Draw up a netlink message to send back */ |
4664 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4665 | if (!msg) |
4666 | return -ENOMEM; |
4667 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
4668 | NL80211_CMD_GET_MESH_CONFIG); |
4669 | if (!hdr) |
4670 | goto out; |
4671 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
4672 | if (!pinfoattr) |
4673 | goto nla_put_failure; |
4674 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
4675 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, |
4676 | cur_params.dot11MeshRetryTimeout) || |
4677 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
4678 | cur_params.dot11MeshConfirmTimeout) || |
4679 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, |
4680 | cur_params.dot11MeshHoldingTimeout) || |
4681 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, |
4682 | cur_params.dot11MeshMaxPeerLinks) || |
4683 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, |
4684 | cur_params.dot11MeshMaxRetries) || |
4685 | nla_put_u8(msg, NL80211_MESHCONF_TTL, |
4686 | cur_params.dot11MeshTTL) || |
4687 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, |
4688 | cur_params.element_ttl) || |
4689 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
4690 | cur_params.auto_open_plinks) || |
4691 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
4692 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || |
4693 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
4694 | cur_params.dot11MeshHWMPmaxPREQretries) || |
4695 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, |
4696 | cur_params.path_refresh_time) || |
4697 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
4698 | cur_params.min_discovery_timeout) || |
4699 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
4700 | cur_params.dot11MeshHWMPactivePathTimeout) || |
4701 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, |
4702 | cur_params.dot11MeshHWMPpreqMinInterval) || |
4703 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, |
4704 | cur_params.dot11MeshHWMPperrMinInterval) || |
4705 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
4706 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || |
4707 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
4708 | cur_params.dot11MeshHWMPRootMode) || |
4709 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, |
4710 | cur_params.dot11MeshHWMPRannInterval) || |
4711 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, |
4712 | cur_params.dot11MeshGateAnnouncementProtocol) || |
4713 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, |
4714 | cur_params.dot11MeshForwarding) || |
4715 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, |
4716 | cur_params.rssi_threshold) || |
4717 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, |
4718 | cur_params.ht_opmode) || |
4719 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
4720 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || |
4721 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
4722 | cur_params.dot11MeshHWMProotInterval) || |
4723 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
4724 | cur_params.dot11MeshHWMPconfirmationInterval) || |
4725 | nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE, |
4726 | cur_params.power_mode) || |
4727 | nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW, |
4728 | cur_params.dot11MeshAwakeWindowDuration) || |
4729 | nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, |
4730 | cur_params.plink_timeout)) |
4731 | goto nla_put_failure; |
4732 | nla_nest_end(msg, pinfoattr); |
4733 | genlmsg_end(msg, hdr); |
4734 | return genlmsg_reply(msg, info); |
4735 | |
4736 | nla_put_failure: |
4737 | genlmsg_cancel(msg, hdr); |
4738 | out: |
4739 | nlmsg_free(msg); |
4740 | return -ENOBUFS; |
4741 | } |
4742 | |
4743 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
4744 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
4745 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, |
4746 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, |
4747 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, |
4748 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, |
4749 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, |
4750 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
4751 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
4752 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
4753 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
4754 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, |
4755 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, |
4756 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, |
4757 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, |
4758 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
4759 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
4760 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
4761 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
4762 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
4763 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
4764 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, |
4765 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, |
4766 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
4767 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, |
4768 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, |
4769 | [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 }, |
4770 | [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 }, |
4771 | [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 }, |
4772 | }; |
4773 | |
4774 | static const struct nla_policy |
4775 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { |
4776 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
4777 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
4778 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, |
4779 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
4780 | [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 }, |
4781 | [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG }, |
4782 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
4783 | .len = IEEE80211_MAX_DATA_LEN }, |
4784 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
4785 | }; |
4786 | |
4787 | static int nl80211_parse_mesh_config(struct genl_info *info, |
4788 | struct mesh_config *cfg, |
4789 | u32 *mask_out) |
4790 | { |
4791 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
4792 | u32 mask = 0; |
4793 | |
4794 | #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \ |
4795 | do { \ |
4796 | if (tb[attr]) { \ |
4797 | if (fn(tb[attr]) < min || fn(tb[attr]) > max) \ |
4798 | return -EINVAL; \ |
4799 | cfg->param = fn(tb[attr]); \ |
4800 | mask |= (1 << (attr - 1)); \ |
4801 | } \ |
4802 | } while (0) |
4803 | |
4804 | |
4805 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
4806 | return -EINVAL; |
4807 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, |
4808 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
4809 | nl80211_meshconf_params_policy)) |
4810 | return -EINVAL; |
4811 | |
4812 | /* This makes sure that there aren't more than 32 mesh config |
4813 | * parameters (otherwise our bitfield scheme would not work.) */ |
4814 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); |
4815 | |
4816 | /* Fill in the params struct */ |
4817 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255, |
4818 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, |
4819 | nla_get_u16); |
4820 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255, |
4821 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
4822 | nla_get_u16); |
4823 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255, |
4824 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, |
4825 | nla_get_u16); |
4826 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255, |
4827 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, |
4828 | nla_get_u16); |
4829 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16, |
4830 | mask, NL80211_MESHCONF_MAX_RETRIES, |
4831 | nla_get_u8); |
4832 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255, |
4833 | mask, NL80211_MESHCONF_TTL, nla_get_u8); |
4834 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255, |
4835 | mask, NL80211_MESHCONF_ELEMENT_TTL, |
4836 | nla_get_u8); |
4837 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1, |
4838 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
4839 | nla_get_u8); |
4840 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, |
4841 | 1, 255, mask, |
4842 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
4843 | nla_get_u32); |
4844 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255, |
4845 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
4846 | nla_get_u8); |
4847 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535, |
4848 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, |
4849 | nla_get_u32); |
4850 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535, |
4851 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
4852 | nla_get_u16); |
4853 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, |
4854 | 1, 65535, mask, |
4855 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
4856 | nla_get_u32); |
4857 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, |
4858 | 1, 65535, mask, |
4859 | NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, |
4860 | nla_get_u16); |
4861 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
4862 | 1, 65535, mask, |
4863 | NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, |
4864 | nla_get_u16); |
4865 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
4866 | dot11MeshHWMPnetDiameterTraversalTime, |
4867 | 1, 65535, mask, |
4868 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
4869 | nla_get_u16); |
4870 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4, |
4871 | mask, NL80211_MESHCONF_HWMP_ROOTMODE, |
4872 | nla_get_u8); |
4873 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535, |
4874 | mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL, |
4875 | nla_get_u16); |
4876 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
4877 | dot11MeshGateAnnouncementProtocol, 0, 1, |
4878 | mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, |
4879 | nla_get_u8); |
4880 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1, |
4881 | mask, NL80211_MESHCONF_FORWARDING, |
4882 | nla_get_u8); |
4883 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0, |
4884 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, |
4885 | nla_get_s32); |
4886 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16, |
4887 | mask, NL80211_MESHCONF_HT_OPMODE, |
4888 | nla_get_u16); |
4889 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, |
4890 | 1, 65535, mask, |
4891 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
4892 | nla_get_u32); |
4893 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535, |
4894 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
4895 | nla_get_u16); |
4896 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
4897 | dot11MeshHWMPconfirmationInterval, |
4898 | 1, 65535, mask, |
4899 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
4900 | nla_get_u16); |
4901 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, |
4902 | NL80211_MESH_POWER_ACTIVE, |
4903 | NL80211_MESH_POWER_MAX, |
4904 | mask, NL80211_MESHCONF_POWER_MODE, |
4905 | nla_get_u32); |
4906 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, |
4907 | 0, 65535, mask, |
4908 | NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16); |
4909 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff, |
4910 | mask, NL80211_MESHCONF_PLINK_TIMEOUT, |
4911 | nla_get_u32); |
4912 | if (mask_out) |
4913 | *mask_out = mask; |
4914 | |
4915 | return 0; |
4916 | |
4917 | #undef FILL_IN_MESH_PARAM_IF_SET |
4918 | } |
4919 | |
4920 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
4921 | struct mesh_setup *setup) |
4922 | { |
4923 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4924 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; |
4925 | |
4926 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) |
4927 | return -EINVAL; |
4928 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, |
4929 | info->attrs[NL80211_ATTR_MESH_SETUP], |
4930 | nl80211_mesh_setup_params_policy)) |
4931 | return -EINVAL; |
4932 | |
4933 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
4934 | setup->sync_method = |
4935 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? |
4936 | IEEE80211_SYNC_METHOD_VENDOR : |
4937 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; |
4938 | |
4939 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
4940 | setup->path_sel_proto = |
4941 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? |
4942 | IEEE80211_PATH_PROTOCOL_VENDOR : |
4943 | IEEE80211_PATH_PROTOCOL_HWMP; |
4944 | |
4945 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) |
4946 | setup->path_metric = |
4947 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? |
4948 | IEEE80211_PATH_METRIC_VENDOR : |
4949 | IEEE80211_PATH_METRIC_AIRTIME; |
4950 | |
4951 | |
4952 | if (tb[NL80211_MESH_SETUP_IE]) { |
4953 | struct nlattr *ieattr = |
4954 | tb[NL80211_MESH_SETUP_IE]; |
4955 | if (!is_valid_ie_attr(ieattr)) |
4956 | return -EINVAL; |
4957 | setup->ie = nla_data(ieattr); |
4958 | setup->ie_len = nla_len(ieattr); |
4959 | } |
4960 | if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] && |
4961 | !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM)) |
4962 | return -EINVAL; |
4963 | setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]); |
4964 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
4965 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); |
4966 | if (setup->is_secure) |
4967 | setup->user_mpm = true; |
4968 | |
4969 | if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) { |
4970 | if (!setup->user_mpm) |
4971 | return -EINVAL; |
4972 | setup->auth_id = |
4973 | nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]); |
4974 | } |
4975 | |
4976 | return 0; |
4977 | } |
4978 | |
4979 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
4980 | struct genl_info *info) |
4981 | { |
4982 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4983 | struct net_device *dev = info->user_ptr[1]; |
4984 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
4985 | struct mesh_config cfg; |
4986 | u32 mask; |
4987 | int err; |
4988 | |
4989 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
4990 | return -EOPNOTSUPP; |
4991 | |
4992 | if (!rdev->ops->update_mesh_config) |
4993 | return -EOPNOTSUPP; |
4994 | |
4995 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
4996 | if (err) |
4997 | return err; |
4998 | |
4999 | wdev_lock(wdev); |
5000 | if (!wdev->mesh_id_len) |
5001 | err = -ENOLINK; |
5002 | |
5003 | if (!err) |
5004 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); |
5005 | |
5006 | wdev_unlock(wdev); |
5007 | |
5008 | return err; |
5009 | } |
5010 | |
5011 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
5012 | { |
5013 | const struct ieee80211_regdomain *regdom; |
5014 | struct sk_buff *msg; |
5015 | void *hdr = NULL; |
5016 | struct nlattr *nl_reg_rules; |
5017 | unsigned int i; |
5018 | |
5019 | if (!cfg80211_regdomain) |
5020 | return -EINVAL; |
5021 | |
5022 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
5023 | if (!msg) |
5024 | return -ENOBUFS; |
5025 | |
5026 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
5027 | NL80211_CMD_GET_REG); |
5028 | if (!hdr) |
5029 | goto put_failure; |
5030 | |
5031 | if (reg_last_request_cell_base() && |
5032 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, |
5033 | NL80211_USER_REG_HINT_CELL_BASE)) |
5034 | goto nla_put_failure; |
5035 | |
5036 | rcu_read_lock(); |
5037 | regdom = rcu_dereference(cfg80211_regdomain); |
5038 | |
5039 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) || |
5040 | (regdom->dfs_region && |
5041 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region))) |
5042 | goto nla_put_failure_rcu; |
5043 | |
5044 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); |
5045 | if (!nl_reg_rules) |
5046 | goto nla_put_failure_rcu; |
5047 | |
5048 | for (i = 0; i < regdom->n_reg_rules; i++) { |
5049 | struct nlattr *nl_reg_rule; |
5050 | const struct ieee80211_reg_rule *reg_rule; |
5051 | const struct ieee80211_freq_range *freq_range; |
5052 | const struct ieee80211_power_rule *power_rule; |
5053 | |
5054 | reg_rule = ®dom->reg_rules[i]; |
5055 | freq_range = ®_rule->freq_range; |
5056 | power_rule = ®_rule->power_rule; |
5057 | |
5058 | nl_reg_rule = nla_nest_start(msg, i); |
5059 | if (!nl_reg_rule) |
5060 | goto nla_put_failure_rcu; |
5061 | |
5062 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
5063 | reg_rule->flags) || |
5064 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, |
5065 | freq_range->start_freq_khz) || |
5066 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, |
5067 | freq_range->end_freq_khz) || |
5068 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, |
5069 | freq_range->max_bandwidth_khz) || |
5070 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, |
5071 | power_rule->max_antenna_gain) || |
5072 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, |
5073 | power_rule->max_eirp)) |
5074 | goto nla_put_failure_rcu; |
5075 | |
5076 | nla_nest_end(msg, nl_reg_rule); |
5077 | } |
5078 | rcu_read_unlock(); |
5079 | |
5080 | nla_nest_end(msg, nl_reg_rules); |
5081 | |
5082 | genlmsg_end(msg, hdr); |
5083 | return genlmsg_reply(msg, info); |
5084 | |
5085 | nla_put_failure_rcu: |
5086 | rcu_read_unlock(); |
5087 | nla_put_failure: |
5088 | genlmsg_cancel(msg, hdr); |
5089 | put_failure: |
5090 | nlmsg_free(msg); |
5091 | return -EMSGSIZE; |
5092 | } |
5093 | |
5094 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
5095 | { |
5096 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; |
5097 | struct nlattr *nl_reg_rule; |
5098 | char *alpha2 = NULL; |
5099 | int rem_reg_rules = 0, r = 0; |
5100 | u32 num_rules = 0, rule_idx = 0, size_of_regd; |
5101 | u8 dfs_region = 0; |
5102 | struct ieee80211_regdomain *rd = NULL; |
5103 | |
5104 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
5105 | return -EINVAL; |
5106 | |
5107 | if (!info->attrs[NL80211_ATTR_REG_RULES]) |
5108 | return -EINVAL; |
5109 | |
5110 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); |
5111 | |
5112 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
5113 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); |
5114 | |
5115 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
5116 | rem_reg_rules) { |
5117 | num_rules++; |
5118 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) |
5119 | return -EINVAL; |
5120 | } |
5121 | |
5122 | size_of_regd = sizeof(struct ieee80211_regdomain) + |
5123 | num_rules * sizeof(struct ieee80211_reg_rule); |
5124 | |
5125 | rd = kzalloc(size_of_regd, GFP_KERNEL); |
5126 | if (!rd) |
5127 | return -ENOMEM; |
5128 | |
5129 | rd->n_reg_rules = num_rules; |
5130 | rd->alpha2[0] = alpha2[0]; |
5131 | rd->alpha2[1] = alpha2[1]; |
5132 | |
5133 | /* |
5134 | * Disable DFS master mode if the DFS region was |
5135 | * not supported or known on this kernel. |
5136 | */ |
5137 | if (reg_supported_dfs_region(dfs_region)) |
5138 | rd->dfs_region = dfs_region; |
5139 | |
5140 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
5141 | rem_reg_rules) { |
5142 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, |
5143 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), |
5144 | reg_rule_policy); |
5145 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); |
5146 | if (r) |
5147 | goto bad_reg; |
5148 | |
5149 | rule_idx++; |
5150 | |
5151 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
5152 | r = -EINVAL; |
5153 | goto bad_reg; |
5154 | } |
5155 | } |
5156 | |
5157 | r = set_regdom(rd); |
5158 | /* set_regdom took ownership */ |
5159 | rd = NULL; |
5160 | |
5161 | bad_reg: |
5162 | kfree(rd); |
5163 | return r; |
5164 | } |
5165 | |
5166 | static int validate_scan_freqs(struct nlattr *freqs) |
5167 | { |
5168 | struct nlattr *attr1, *attr2; |
5169 | int n_channels = 0, tmp1, tmp2; |
5170 | |
5171 | nla_for_each_nested(attr1, freqs, tmp1) { |
5172 | n_channels++; |
5173 | /* |
5174 | * Some hardware has a limited channel list for |
5175 | * scanning, and it is pretty much nonsensical |
5176 | * to scan for a channel twice, so disallow that |
5177 | * and don't require drivers to check that the |
5178 | * channel list they get isn't longer than what |
5179 | * they can scan, as long as they can scan all |
5180 | * the channels they registered at once. |
5181 | */ |
5182 | nla_for_each_nested(attr2, freqs, tmp2) |
5183 | if (attr1 != attr2 && |
5184 | nla_get_u32(attr1) == nla_get_u32(attr2)) |
5185 | return 0; |
5186 | } |
5187 | |
5188 | return n_channels; |
5189 | } |
5190 | |
5191 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
5192 | { |
5193 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5194 | struct wireless_dev *wdev = info->user_ptr[1]; |
5195 | struct cfg80211_scan_request *request; |
5196 | struct nlattr *attr; |
5197 | struct wiphy *wiphy; |
5198 | int err, tmp, n_ssids = 0, n_channels, i; |
5199 | size_t ie_len; |
5200 | |
5201 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5202 | return -EINVAL; |
5203 | |
5204 | wiphy = &rdev->wiphy; |
5205 | |
5206 | if (!rdev->ops->scan) |
5207 | return -EOPNOTSUPP; |
5208 | |
5209 | if (rdev->scan_req) { |
5210 | err = -EBUSY; |
5211 | goto unlock; |
5212 | } |
5213 | |
5214 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
5215 | n_channels = validate_scan_freqs( |
5216 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); |
5217 | if (!n_channels) { |
5218 | err = -EINVAL; |
5219 | goto unlock; |
5220 | } |
5221 | } else { |
5222 | enum ieee80211_band band; |
5223 | n_channels = 0; |
5224 | |
5225 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
5226 | if (wiphy->bands[band]) |
5227 | n_channels += wiphy->bands[band]->n_channels; |
5228 | } |
5229 | |
5230 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) |
5231 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) |
5232 | n_ssids++; |
5233 | |
5234 | if (n_ssids > wiphy->max_scan_ssids) { |
5235 | err = -EINVAL; |
5236 | goto unlock; |
5237 | } |
5238 | |
5239 | if (info->attrs[NL80211_ATTR_IE]) |
5240 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
5241 | else |
5242 | ie_len = 0; |
5243 | |
5244 | if (ie_len > wiphy->max_scan_ie_len) { |
5245 | err = -EINVAL; |
5246 | goto unlock; |
5247 | } |
5248 | |
5249 | request = kzalloc(sizeof(*request) |
5250 | + sizeof(*request->ssids) * n_ssids |
5251 | + sizeof(*request->channels) * n_channels |
5252 | + ie_len, GFP_KERNEL); |
5253 | if (!request) { |
5254 | err = -ENOMEM; |
5255 | goto unlock; |
5256 | } |
5257 | |
5258 | if (n_ssids) |
5259 | request->ssids = (void *)&request->channels[n_channels]; |
5260 | request->n_ssids = n_ssids; |
5261 | if (ie_len) { |
5262 | if (request->ssids) |
5263 | request->ie = (void *)(request->ssids + n_ssids); |
5264 | else |
5265 | request->ie = (void *)(request->channels + n_channels); |
5266 | } |
5267 | |
5268 | i = 0; |
5269 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
5270 | /* user specified, bail out if channel not found */ |
5271 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
5272 | struct ieee80211_channel *chan; |
5273 | |
5274 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); |
5275 | |
5276 | if (!chan) { |
5277 | err = -EINVAL; |
5278 | goto out_free; |
5279 | } |
5280 | |
5281 | /* ignore disabled channels */ |
5282 | if (chan->flags & IEEE80211_CHAN_DISABLED) |
5283 | continue; |
5284 | |
5285 | request->channels[i] = chan; |
5286 | i++; |
5287 | } |
5288 | } else { |
5289 | enum ieee80211_band band; |
5290 | |
5291 | /* all channels */ |
5292 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
5293 | int j; |
5294 | if (!wiphy->bands[band]) |
5295 | continue; |
5296 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { |
5297 | struct ieee80211_channel *chan; |
5298 | |
5299 | chan = &wiphy->bands[band]->channels[j]; |
5300 | |
5301 | if (chan->flags & IEEE80211_CHAN_DISABLED) |
5302 | continue; |
5303 | |
5304 | request->channels[i] = chan; |
5305 | i++; |
5306 | } |
5307 | } |
5308 | } |
5309 | |
5310 | if (!i) { |
5311 | err = -EINVAL; |
5312 | goto out_free; |
5313 | } |
5314 | |
5315 | request->n_channels = i; |
5316 | |
5317 | i = 0; |
5318 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { |
5319 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { |
5320 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
5321 | err = -EINVAL; |
5322 | goto out_free; |
5323 | } |
5324 | request->ssids[i].ssid_len = nla_len(attr); |
5325 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
5326 | i++; |
5327 | } |
5328 | } |
5329 | |
5330 | if (info->attrs[NL80211_ATTR_IE]) { |
5331 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
5332 | memcpy((void *)request->ie, |
5333 | nla_data(info->attrs[NL80211_ATTR_IE]), |
5334 | request->ie_len); |
5335 | } |
5336 | |
5337 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
5338 | if (wiphy->bands[i]) |
5339 | request->rates[i] = |
5340 | (1 << wiphy->bands[i]->n_bitrates) - 1; |
5341 | |
5342 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { |
5343 | nla_for_each_nested(attr, |
5344 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], |
5345 | tmp) { |
5346 | enum ieee80211_band band = nla_type(attr); |
5347 | |
5348 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
5349 | err = -EINVAL; |
5350 | goto out_free; |
5351 | } |
5352 | |
5353 | if (!wiphy->bands[band]) |
5354 | continue; |
5355 | |
5356 | err = ieee80211_get_ratemask(wiphy->bands[band], |
5357 | nla_data(attr), |
5358 | nla_len(attr), |
5359 | &request->rates[band]); |
5360 | if (err) |
5361 | goto out_free; |
5362 | } |
5363 | } |
5364 | |
5365 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
5366 | request->flags = nla_get_u32( |
5367 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); |
5368 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
5369 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || |
5370 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && |
5371 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { |
5372 | err = -EOPNOTSUPP; |
5373 | goto out_free; |
5374 | } |
5375 | } |
5376 | |
5377 | request->no_cck = |
5378 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
5379 | |
5380 | request->wdev = wdev; |
5381 | request->wiphy = &rdev->wiphy; |
5382 | request->scan_start = jiffies; |
5383 | |
5384 | rdev->scan_req = request; |
5385 | err = rdev_scan(rdev, request); |
5386 | |
5387 | if (!err) { |
5388 | nl80211_send_scan_start(rdev, wdev); |
5389 | if (wdev->netdev) |
5390 | dev_hold(wdev->netdev); |
5391 | } else { |
5392 | out_free: |
5393 | rdev->scan_req = NULL; |
5394 | kfree(request); |
5395 | } |
5396 | |
5397 | unlock: |
5398 | return err; |
5399 | } |
5400 | |
5401 | static int nl80211_start_sched_scan(struct sk_buff *skb, |
5402 | struct genl_info *info) |
5403 | { |
5404 | struct cfg80211_sched_scan_request *request; |
5405 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5406 | struct net_device *dev = info->user_ptr[1]; |
5407 | struct nlattr *attr; |
5408 | struct wiphy *wiphy; |
5409 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; |
5410 | u32 interval; |
5411 | enum ieee80211_band band; |
5412 | size_t ie_len; |
5413 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
5414 | |
5415 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || |
5416 | !rdev->ops->sched_scan_start) |
5417 | return -EOPNOTSUPP; |
5418 | |
5419 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5420 | return -EINVAL; |
5421 | |
5422 | if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
5423 | return -EINVAL; |
5424 | |
5425 | interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); |
5426 | if (interval == 0) |
5427 | return -EINVAL; |
5428 | |
5429 | wiphy = &rdev->wiphy; |
5430 | |
5431 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
5432 | n_channels = validate_scan_freqs( |
5433 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); |
5434 | if (!n_channels) |
5435 | return -EINVAL; |
5436 | } else { |
5437 | n_channels = 0; |
5438 | |
5439 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
5440 | if (wiphy->bands[band]) |
5441 | n_channels += wiphy->bands[band]->n_channels; |
5442 | } |
5443 | |
5444 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) |
5445 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], |
5446 | tmp) |
5447 | n_ssids++; |
5448 | |
5449 | if (n_ssids > wiphy->max_sched_scan_ssids) |
5450 | return -EINVAL; |
5451 | |
5452 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) |
5453 | nla_for_each_nested(attr, |
5454 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
5455 | tmp) |
5456 | n_match_sets++; |
5457 | |
5458 | if (n_match_sets > wiphy->max_match_sets) |
5459 | return -EINVAL; |
5460 | |
5461 | if (info->attrs[NL80211_ATTR_IE]) |
5462 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
5463 | else |
5464 | ie_len = 0; |
5465 | |
5466 | if (ie_len > wiphy->max_sched_scan_ie_len) |
5467 | return -EINVAL; |
5468 | |
5469 | if (rdev->sched_scan_req) { |
5470 | err = -EINPROGRESS; |
5471 | goto out; |
5472 | } |
5473 | |
5474 | request = kzalloc(sizeof(*request) |
5475 | + sizeof(*request->ssids) * n_ssids |
5476 | + sizeof(*request->match_sets) * n_match_sets |
5477 | + sizeof(*request->channels) * n_channels |
5478 | + ie_len, GFP_KERNEL); |
5479 | if (!request) { |
5480 | err = -ENOMEM; |
5481 | goto out; |
5482 | } |
5483 | |
5484 | if (n_ssids) |
5485 | request->ssids = (void *)&request->channels[n_channels]; |
5486 | request->n_ssids = n_ssids; |
5487 | if (ie_len) { |
5488 | if (request->ssids) |
5489 | request->ie = (void *)(request->ssids + n_ssids); |
5490 | else |
5491 | request->ie = (void *)(request->channels + n_channels); |
5492 | } |
5493 | |
5494 | if (n_match_sets) { |
5495 | if (request->ie) |
5496 | request->match_sets = (void *)(request->ie + ie_len); |
5497 | else if (request->ssids) |
5498 | request->match_sets = |
5499 | (void *)(request->ssids + n_ssids); |
5500 | else |
5501 | request->match_sets = |
5502 | (void *)(request->channels + n_channels); |
5503 | } |
5504 | request->n_match_sets = n_match_sets; |
5505 | |
5506 | i = 0; |
5507 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
5508 | /* user specified, bail out if channel not found */ |
5509 | nla_for_each_nested(attr, |
5510 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], |
5511 | tmp) { |
5512 | struct ieee80211_channel *chan; |
5513 | |
5514 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); |
5515 | |
5516 | if (!chan) { |
5517 | err = -EINVAL; |
5518 | goto out_free; |
5519 | } |
5520 | |
5521 | /* ignore disabled channels */ |
5522 | if (chan->flags & IEEE80211_CHAN_DISABLED) |
5523 | continue; |
5524 | |
5525 | request->channels[i] = chan; |
5526 | i++; |
5527 | } |
5528 | } else { |
5529 | /* all channels */ |
5530 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
5531 | int j; |
5532 | if (!wiphy->bands[band]) |
5533 | continue; |
5534 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { |
5535 | struct ieee80211_channel *chan; |
5536 | |
5537 | chan = &wiphy->bands[band]->channels[j]; |
5538 | |
5539 | if (chan->flags & IEEE80211_CHAN_DISABLED) |
5540 | continue; |
5541 | |
5542 | request->channels[i] = chan; |
5543 | i++; |
5544 | } |
5545 | } |
5546 | } |
5547 | |
5548 | if (!i) { |
5549 | err = -EINVAL; |
5550 | goto out_free; |
5551 | } |
5552 | |
5553 | request->n_channels = i; |
5554 | |
5555 | i = 0; |
5556 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { |
5557 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], |
5558 | tmp) { |
5559 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
5560 | err = -EINVAL; |
5561 | goto out_free; |
5562 | } |
5563 | request->ssids[i].ssid_len = nla_len(attr); |
5564 | memcpy(request->ssids[i].ssid, nla_data(attr), |
5565 | nla_len(attr)); |
5566 | i++; |
5567 | } |
5568 | } |
5569 | |
5570 | i = 0; |
5571 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { |
5572 | nla_for_each_nested(attr, |
5573 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
5574 | tmp) { |
5575 | struct nlattr *ssid, *rssi; |
5576 | |
5577 | nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, |
5578 | nla_data(attr), nla_len(attr), |
5579 | nl80211_match_policy); |
5580 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; |
5581 | if (ssid) { |
5582 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { |
5583 | err = -EINVAL; |
5584 | goto out_free; |
5585 | } |
5586 | memcpy(request->match_sets[i].ssid.ssid, |
5587 | nla_data(ssid), nla_len(ssid)); |
5588 | request->match_sets[i].ssid.ssid_len = |
5589 | nla_len(ssid); |
5590 | } |
5591 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; |
5592 | if (rssi) |
5593 | request->rssi_thold = nla_get_u32(rssi); |
5594 | else |
5595 | request->rssi_thold = |
5596 | NL80211_SCAN_RSSI_THOLD_OFF; |
5597 | i++; |
5598 | } |
5599 | } |
5600 | |
5601 | if (info->attrs[NL80211_ATTR_IE]) { |
5602 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
5603 | memcpy((void *)request->ie, |
5604 | nla_data(info->attrs[NL80211_ATTR_IE]), |
5605 | request->ie_len); |
5606 | } |
5607 | |
5608 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
5609 | request->flags = nla_get_u32( |
5610 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); |
5611 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
5612 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || |
5613 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && |
5614 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { |
5615 | err = -EOPNOTSUPP; |
5616 | goto out_free; |
5617 | } |
5618 | } |
5619 | |
5620 | request->dev = dev; |
5621 | request->wiphy = &rdev->wiphy; |
5622 | request->interval = interval; |
5623 | request->scan_start = jiffies; |
5624 | |
5625 | err = rdev_sched_scan_start(rdev, dev, request); |
5626 | if (!err) { |
5627 | rdev->sched_scan_req = request; |
5628 | nl80211_send_sched_scan(rdev, dev, |
5629 | NL80211_CMD_START_SCHED_SCAN); |
5630 | goto out; |
5631 | } |
5632 | |
5633 | out_free: |
5634 | kfree(request); |
5635 | out: |
5636 | return err; |
5637 | } |
5638 | |
5639 | static int nl80211_stop_sched_scan(struct sk_buff *skb, |
5640 | struct genl_info *info) |
5641 | { |
5642 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5643 | |
5644 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || |
5645 | !rdev->ops->sched_scan_stop) |
5646 | return -EOPNOTSUPP; |
5647 | |
5648 | return __cfg80211_stop_sched_scan(rdev, false); |
5649 | } |
5650 | |
5651 | static int nl80211_start_radar_detection(struct sk_buff *skb, |
5652 | struct genl_info *info) |
5653 | { |
5654 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5655 | struct net_device *dev = info->user_ptr[1]; |
5656 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
5657 | struct cfg80211_chan_def chandef; |
5658 | int err; |
5659 | |
5660 | err = nl80211_parse_chandef(rdev, info, &chandef); |
5661 | if (err) |
5662 | return err; |
5663 | |
5664 | if (netif_carrier_ok(dev)) |
5665 | return -EBUSY; |
5666 | |
5667 | if (wdev->cac_started) |
5668 | return -EBUSY; |
5669 | |
5670 | err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef); |
5671 | if (err < 0) |
5672 | return err; |
5673 | |
5674 | if (err == 0) |
5675 | return -EINVAL; |
5676 | |
5677 | if (chandef.chan->dfs_state != NL80211_DFS_USABLE) |
5678 | return -EINVAL; |
5679 | |
5680 | if (!rdev->ops->start_radar_detection) |
5681 | return -EOPNOTSUPP; |
5682 | |
5683 | err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, |
5684 | chandef.chan, CHAN_MODE_SHARED, |
5685 | BIT(chandef.width)); |
5686 | if (err) |
5687 | return err; |
5688 | |
5689 | err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef); |
5690 | if (!err) { |
5691 | wdev->channel = chandef.chan; |
5692 | wdev->cac_started = true; |
5693 | wdev->cac_start_time = jiffies; |
5694 | } |
5695 | return err; |
5696 | } |
5697 | |
5698 | static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) |
5699 | { |
5700 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5701 | struct net_device *dev = info->user_ptr[1]; |
5702 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
5703 | struct cfg80211_csa_settings params; |
5704 | /* csa_attrs is defined static to avoid waste of stack size - this |
5705 | * function is called under RTNL lock, so this should not be a problem. |
5706 | */ |
5707 | static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1]; |
5708 | u8 radar_detect_width = 0; |
5709 | int err; |
5710 | bool need_new_beacon = false; |
5711 | |
5712 | if (!rdev->ops->channel_switch || |
5713 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) |
5714 | return -EOPNOTSUPP; |
5715 | |
5716 | switch (dev->ieee80211_ptr->iftype) { |
5717 | case NL80211_IFTYPE_AP: |
5718 | case NL80211_IFTYPE_P2P_GO: |
5719 | need_new_beacon = true; |
5720 | |
5721 | /* useless if AP is not running */ |
5722 | if (!wdev->beacon_interval) |
5723 | return -EINVAL; |
5724 | break; |
5725 | case NL80211_IFTYPE_ADHOC: |
5726 | case NL80211_IFTYPE_MESH_POINT: |
5727 | break; |
5728 | default: |
5729 | return -EOPNOTSUPP; |
5730 | } |
5731 | |
5732 | memset(¶ms, 0, sizeof(params)); |
5733 | |
5734 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || |
5735 | !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]) |
5736 | return -EINVAL; |
5737 | |
5738 | /* only important for AP, IBSS and mesh create IEs internally */ |
5739 | if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES]) |
5740 | return -EINVAL; |
5741 | |
5742 | params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]); |
5743 | |
5744 | if (!need_new_beacon) |
5745 | goto skip_beacons; |
5746 | |
5747 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after); |
5748 | if (err) |
5749 | return err; |
5750 | |
5751 | err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX, |
5752 | info->attrs[NL80211_ATTR_CSA_IES], |
5753 | nl80211_policy); |
5754 | if (err) |
5755 | return err; |
5756 | |
5757 | err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa); |
5758 | if (err) |
5759 | return err; |
5760 | |
5761 | if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]) |
5762 | return -EINVAL; |
5763 | |
5764 | params.counter_offset_beacon = |
5765 | nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); |
5766 | if (params.counter_offset_beacon >= params.beacon_csa.tail_len) |
5767 | return -EINVAL; |
5768 | |
5769 | /* sanity check - counters should be the same */ |
5770 | if (params.beacon_csa.tail[params.counter_offset_beacon] != |
5771 | params.count) |
5772 | return -EINVAL; |
5773 | |
5774 | if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) { |
5775 | params.counter_offset_presp = |
5776 | nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); |
5777 | if (params.counter_offset_presp >= |
5778 | params.beacon_csa.probe_resp_len) |
5779 | return -EINVAL; |
5780 | |
5781 | if (params.beacon_csa.probe_resp[params.counter_offset_presp] != |
5782 | params.count) |
5783 | return -EINVAL; |
5784 | } |
5785 | |
5786 | skip_beacons: |
5787 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
5788 | if (err) |
5789 | return err; |
5790 | |
5791 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef)) |
5792 | return -EINVAL; |
5793 | |
5794 | if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP || |
5795 | dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO || |
5796 | dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) { |
5797 | err = cfg80211_chandef_dfs_required(wdev->wiphy, |
5798 | ¶ms.chandef); |
5799 | if (err < 0) { |
5800 | return err; |
5801 | } else if (err) { |
5802 | radar_detect_width = BIT(params.chandef.width); |
5803 | params.radar_required = true; |
5804 | } |
5805 | } |
5806 | |
5807 | err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, |
5808 | params.chandef.chan, |
5809 | CHAN_MODE_SHARED, |
5810 | radar_detect_width); |
5811 | if (err) |
5812 | return err; |
5813 | |
5814 | if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) |
5815 | params.block_tx = true; |
5816 | |
5817 | return rdev_channel_switch(rdev, dev, ¶ms); |
5818 | } |
5819 | |
5820 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
5821 | u32 seq, int flags, |
5822 | struct cfg80211_registered_device *rdev, |
5823 | struct wireless_dev *wdev, |
5824 | struct cfg80211_internal_bss *intbss) |
5825 | { |
5826 | struct cfg80211_bss *res = &intbss->pub; |
5827 | const struct cfg80211_bss_ies *ies; |
5828 | void *hdr; |
5829 | struct nlattr *bss; |
5830 | bool tsf = false; |
5831 | |
5832 | ASSERT_WDEV_LOCK(wdev); |
5833 | |
5834 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
5835 | NL80211_CMD_NEW_SCAN_RESULTS); |
5836 | if (!hdr) |
5837 | return -1; |
5838 | |
5839 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
5840 | |
5841 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation)) |
5842 | goto nla_put_failure; |
5843 | if (wdev->netdev && |
5844 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) |
5845 | goto nla_put_failure; |
5846 | if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
5847 | goto nla_put_failure; |
5848 | |
5849 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); |
5850 | if (!bss) |
5851 | goto nla_put_failure; |
5852 | if ((!is_zero_ether_addr(res->bssid) && |
5853 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid))) |
5854 | goto nla_put_failure; |
5855 | |
5856 | rcu_read_lock(); |
5857 | ies = rcu_dereference(res->ies); |
5858 | if (ies) { |
5859 | if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) |
5860 | goto fail_unlock_rcu; |
5861 | tsf = true; |
5862 | if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, |
5863 | ies->len, ies->data)) |
5864 | goto fail_unlock_rcu; |
5865 | } |
5866 | ies = rcu_dereference(res->beacon_ies); |
5867 | if (ies) { |
5868 | if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) |
5869 | goto fail_unlock_rcu; |
5870 | if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES, |
5871 | ies->len, ies->data)) |
5872 | goto fail_unlock_rcu; |
5873 | } |
5874 | rcu_read_unlock(); |
5875 | |
5876 | if (res->beacon_interval && |
5877 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) |
5878 | goto nla_put_failure; |
5879 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || |
5880 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || |
5881 | nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) || |
5882 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, |
5883 | jiffies_to_msecs(jiffies - intbss->ts))) |
5884 | goto nla_put_failure; |
5885 | |
5886 | switch (rdev->wiphy.signal_type) { |
5887 | case CFG80211_SIGNAL_TYPE_MBM: |
5888 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
5889 | goto nla_put_failure; |
5890 | break; |
5891 | case CFG80211_SIGNAL_TYPE_UNSPEC: |
5892 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
5893 | goto nla_put_failure; |
5894 | break; |
5895 | default: |
5896 | break; |
5897 | } |
5898 | |
5899 | switch (wdev->iftype) { |
5900 | case NL80211_IFTYPE_P2P_CLIENT: |
5901 | case NL80211_IFTYPE_STATION: |
5902 | if (intbss == wdev->current_bss && |
5903 | nla_put_u32(msg, NL80211_BSS_STATUS, |
5904 | NL80211_BSS_STATUS_ASSOCIATED)) |
5905 | goto nla_put_failure; |
5906 | break; |
5907 | case NL80211_IFTYPE_ADHOC: |
5908 | if (intbss == wdev->current_bss && |
5909 | nla_put_u32(msg, NL80211_BSS_STATUS, |
5910 | NL80211_BSS_STATUS_IBSS_JOINED)) |
5911 | goto nla_put_failure; |
5912 | break; |
5913 | default: |
5914 | break; |
5915 | } |
5916 | |
5917 | nla_nest_end(msg, bss); |
5918 | |
5919 | return genlmsg_end(msg, hdr); |
5920 | |
5921 | fail_unlock_rcu: |
5922 | rcu_read_unlock(); |
5923 | nla_put_failure: |
5924 | genlmsg_cancel(msg, hdr); |
5925 | return -EMSGSIZE; |
5926 | } |
5927 | |
5928 | static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb) |
5929 | { |
5930 | struct cfg80211_registered_device *rdev; |
5931 | struct cfg80211_internal_bss *scan; |
5932 | struct wireless_dev *wdev; |
5933 | int start = cb->args[2], idx = 0; |
5934 | int err; |
5935 | |
5936 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
5937 | if (err) |
5938 | return err; |
5939 | |
5940 | wdev_lock(wdev); |
5941 | spin_lock_bh(&rdev->bss_lock); |
5942 | cfg80211_bss_expire(rdev); |
5943 | |
5944 | cb->seq = rdev->bss_generation; |
5945 | |
5946 | list_for_each_entry(scan, &rdev->bss_list, list) { |
5947 | if (++idx <= start) |
5948 | continue; |
5949 | if (nl80211_send_bss(skb, cb, |
5950 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
5951 | rdev, wdev, scan) < 0) { |
5952 | idx--; |
5953 | break; |
5954 | } |
5955 | } |
5956 | |
5957 | spin_unlock_bh(&rdev->bss_lock); |
5958 | wdev_unlock(wdev); |
5959 | |
5960 | cb->args[2] = idx; |
5961 | nl80211_finish_wdev_dump(rdev); |
5962 | |
5963 | return skb->len; |
5964 | } |
5965 | |
5966 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, |
5967 | int flags, struct net_device *dev, |
5968 | struct survey_info *survey) |
5969 | { |
5970 | void *hdr; |
5971 | struct nlattr *infoattr; |
5972 | |
5973 | hdr = nl80211hdr_put(msg, portid, seq, flags, |
5974 | NL80211_CMD_NEW_SURVEY_RESULTS); |
5975 | if (!hdr) |
5976 | return -ENOMEM; |
5977 | |
5978 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
5979 | goto nla_put_failure; |
5980 | |
5981 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); |
5982 | if (!infoattr) |
5983 | goto nla_put_failure; |
5984 | |
5985 | if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, |
5986 | survey->channel->center_freq)) |
5987 | goto nla_put_failure; |
5988 | |
5989 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && |
5990 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) |
5991 | goto nla_put_failure; |
5992 | if ((survey->filled & SURVEY_INFO_IN_USE) && |
5993 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) |
5994 | goto nla_put_failure; |
5995 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) && |
5996 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, |
5997 | survey->channel_time)) |
5998 | goto nla_put_failure; |
5999 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) && |
6000 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, |
6001 | survey->channel_time_busy)) |
6002 | goto nla_put_failure; |
6003 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) && |
6004 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, |
6005 | survey->channel_time_ext_busy)) |
6006 | goto nla_put_failure; |
6007 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) && |
6008 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, |
6009 | survey->channel_time_rx)) |
6010 | goto nla_put_failure; |
6011 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) && |
6012 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, |
6013 | survey->channel_time_tx)) |
6014 | goto nla_put_failure; |
6015 | |
6016 | nla_nest_end(msg, infoattr); |
6017 | |
6018 | return genlmsg_end(msg, hdr); |
6019 | |
6020 | nla_put_failure: |
6021 | genlmsg_cancel(msg, hdr); |
6022 | return -EMSGSIZE; |
6023 | } |
6024 | |
6025 | static int nl80211_dump_survey(struct sk_buff *skb, |
6026 | struct netlink_callback *cb) |
6027 | { |
6028 | struct survey_info survey; |
6029 | struct cfg80211_registered_device *dev; |
6030 | struct wireless_dev *wdev; |
6031 | int survey_idx = cb->args[2]; |
6032 | int res; |
6033 | |
6034 | res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev); |
6035 | if (res) |
6036 | return res; |
6037 | |
6038 | if (!wdev->netdev) { |
6039 | res = -EINVAL; |
6040 | goto out_err; |
6041 | } |
6042 | |
6043 | if (!dev->ops->dump_survey) { |
6044 | res = -EOPNOTSUPP; |
6045 | goto out_err; |
6046 | } |
6047 | |
6048 | while (1) { |
6049 | struct ieee80211_channel *chan; |
6050 | |
6051 | res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey); |
6052 | if (res == -ENOENT) |
6053 | break; |
6054 | if (res) |
6055 | goto out_err; |
6056 | |
6057 | /* Survey without a channel doesn't make sense */ |
6058 | if (!survey.channel) { |
6059 | res = -EINVAL; |
6060 | goto out; |
6061 | } |
6062 | |
6063 | chan = ieee80211_get_channel(&dev->wiphy, |
6064 | survey.channel->center_freq); |
6065 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { |
6066 | survey_idx++; |
6067 | continue; |
6068 | } |
6069 | |
6070 | if (nl80211_send_survey(skb, |
6071 | NETLINK_CB(cb->skb).portid, |
6072 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
6073 | wdev->netdev, &survey) < 0) |
6074 | goto out; |
6075 | survey_idx++; |
6076 | } |
6077 | |
6078 | out: |
6079 | cb->args[2] = survey_idx; |
6080 | res = skb->len; |
6081 | out_err: |
6082 | nl80211_finish_wdev_dump(dev); |
6083 | return res; |
6084 | } |
6085 | |
6086 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
6087 | { |
6088 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | |
6089 | NL80211_WPA_VERSION_2)); |
6090 | } |
6091 | |
6092 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
6093 | { |
6094 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6095 | struct net_device *dev = info->user_ptr[1]; |
6096 | struct ieee80211_channel *chan; |
6097 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; |
6098 | int err, ssid_len, ie_len = 0, sae_data_len = 0; |
6099 | enum nl80211_auth_type auth_type; |
6100 | struct key_parse key; |
6101 | bool local_state_change; |
6102 | |
6103 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6104 | return -EINVAL; |
6105 | |
6106 | if (!info->attrs[NL80211_ATTR_MAC]) |
6107 | return -EINVAL; |
6108 | |
6109 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
6110 | return -EINVAL; |
6111 | |
6112 | if (!info->attrs[NL80211_ATTR_SSID]) |
6113 | return -EINVAL; |
6114 | |
6115 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) |
6116 | return -EINVAL; |
6117 | |
6118 | err = nl80211_parse_key(info, &key); |
6119 | if (err) |
6120 | return err; |
6121 | |
6122 | if (key.idx >= 0) { |
6123 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
6124 | return -EINVAL; |
6125 | if (!key.p.key || !key.p.key_len) |
6126 | return -EINVAL; |
6127 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || |
6128 | key.p.key_len != WLAN_KEY_LEN_WEP40) && |
6129 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || |
6130 | key.p.key_len != WLAN_KEY_LEN_WEP104)) |
6131 | return -EINVAL; |
6132 | if (key.idx > 4) |
6133 | return -EINVAL; |
6134 | } else { |
6135 | key.p.key_len = 0; |
6136 | key.p.key = NULL; |
6137 | } |
6138 | |
6139 | if (key.idx >= 0) { |
6140 | int i; |
6141 | bool ok = false; |
6142 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { |
6143 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { |
6144 | ok = true; |
6145 | break; |
6146 | } |
6147 | } |
6148 | if (!ok) |
6149 | return -EINVAL; |
6150 | } |
6151 | |
6152 | if (!rdev->ops->auth) |
6153 | return -EOPNOTSUPP; |
6154 | |
6155 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
6156 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6157 | return -EOPNOTSUPP; |
6158 | |
6159 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
6160 | chan = ieee80211_get_channel(&rdev->wiphy, |
6161 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
6162 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
6163 | return -EINVAL; |
6164 | |
6165 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
6166 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
6167 | |
6168 | if (info->attrs[NL80211_ATTR_IE]) { |
6169 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6170 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
6171 | } |
6172 | |
6173 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
6174 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
6175 | return -EINVAL; |
6176 | |
6177 | if (auth_type == NL80211_AUTHTYPE_SAE && |
6178 | !info->attrs[NL80211_ATTR_SAE_DATA]) |
6179 | return -EINVAL; |
6180 | |
6181 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { |
6182 | if (auth_type != NL80211_AUTHTYPE_SAE) |
6183 | return -EINVAL; |
6184 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); |
6185 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); |
6186 | /* need to include at least Auth Transaction and Status Code */ |
6187 | if (sae_data_len < 4) |
6188 | return -EINVAL; |
6189 | } |
6190 | |
6191 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
6192 | |
6193 | /* |
6194 | * Since we no longer track auth state, ignore |
6195 | * requests to only change local state. |
6196 | */ |
6197 | if (local_state_change) |
6198 | return 0; |
6199 | |
6200 | wdev_lock(dev->ieee80211_ptr); |
6201 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
6202 | ssid, ssid_len, ie, ie_len, |
6203 | key.p.key, key.p.key_len, key.idx, |
6204 | sae_data, sae_data_len); |
6205 | wdev_unlock(dev->ieee80211_ptr); |
6206 | return err; |
6207 | } |
6208 | |
6209 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
6210 | struct genl_info *info, |
6211 | struct cfg80211_crypto_settings *settings, |
6212 | int cipher_limit) |
6213 | { |
6214 | memset(settings, 0, sizeof(*settings)); |
6215 | |
6216 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
6217 | |
6218 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
6219 | u16 proto; |
6220 | proto = nla_get_u16( |
6221 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); |
6222 | settings->control_port_ethertype = cpu_to_be16(proto); |
6223 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && |
6224 | proto != ETH_P_PAE) |
6225 | return -EINVAL; |
6226 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) |
6227 | settings->control_port_no_encrypt = true; |
6228 | } else |
6229 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); |
6230 | |
6231 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
6232 | void *data; |
6233 | int len, i; |
6234 | |
6235 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); |
6236 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); |
6237 | settings->n_ciphers_pairwise = len / sizeof(u32); |
6238 | |
6239 | if (len % sizeof(u32)) |
6240 | return -EINVAL; |
6241 | |
6242 | if (settings->n_ciphers_pairwise > cipher_limit) |
6243 | return -EINVAL; |
6244 | |
6245 | memcpy(settings->ciphers_pairwise, data, len); |
6246 | |
6247 | for (i = 0; i < settings->n_ciphers_pairwise; i++) |
6248 | if (!cfg80211_supported_cipher_suite( |
6249 | &rdev->wiphy, |
6250 | settings->ciphers_pairwise[i])) |
6251 | return -EINVAL; |
6252 | } |
6253 | |
6254 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { |
6255 | settings->cipher_group = |
6256 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); |
6257 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
6258 | settings->cipher_group)) |
6259 | return -EINVAL; |
6260 | } |
6261 | |
6262 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { |
6263 | settings->wpa_versions = |
6264 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); |
6265 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) |
6266 | return -EINVAL; |
6267 | } |
6268 | |
6269 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { |
6270 | void *data; |
6271 | int len; |
6272 | |
6273 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); |
6274 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); |
6275 | settings->n_akm_suites = len / sizeof(u32); |
6276 | |
6277 | if (len % sizeof(u32)) |
6278 | return -EINVAL; |
6279 | |
6280 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
6281 | return -EINVAL; |
6282 | |
6283 | memcpy(settings->akm_suites, data, len); |
6284 | } |
6285 | |
6286 | return 0; |
6287 | } |
6288 | |
6289 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
6290 | { |
6291 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6292 | struct net_device *dev = info->user_ptr[1]; |
6293 | struct ieee80211_channel *chan; |
6294 | struct cfg80211_assoc_request req = {}; |
6295 | const u8 *bssid, *ssid; |
6296 | int err, ssid_len = 0; |
6297 | |
6298 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6299 | return -EINVAL; |
6300 | |
6301 | if (!info->attrs[NL80211_ATTR_MAC] || |
6302 | !info->attrs[NL80211_ATTR_SSID] || |
6303 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) |
6304 | return -EINVAL; |
6305 | |
6306 | if (!rdev->ops->assoc) |
6307 | return -EOPNOTSUPP; |
6308 | |
6309 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
6310 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6311 | return -EOPNOTSUPP; |
6312 | |
6313 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
6314 | |
6315 | chan = ieee80211_get_channel(&rdev->wiphy, |
6316 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
6317 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
6318 | return -EINVAL; |
6319 | |
6320 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
6321 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
6322 | |
6323 | if (info->attrs[NL80211_ATTR_IE]) { |
6324 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6325 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
6326 | } |
6327 | |
6328 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
6329 | enum nl80211_mfp mfp = |
6330 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
6331 | if (mfp == NL80211_MFP_REQUIRED) |
6332 | req.use_mfp = true; |
6333 | else if (mfp != NL80211_MFP_NO) |
6334 | return -EINVAL; |
6335 | } |
6336 | |
6337 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
6338 | req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); |
6339 | |
6340 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
6341 | req.flags |= ASSOC_REQ_DISABLE_HT; |
6342 | |
6343 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
6344 | memcpy(&req.ht_capa_mask, |
6345 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), |
6346 | sizeof(req.ht_capa_mask)); |
6347 | |
6348 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { |
6349 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
6350 | return -EINVAL; |
6351 | memcpy(&req.ht_capa, |
6352 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), |
6353 | sizeof(req.ht_capa)); |
6354 | } |
6355 | |
6356 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
6357 | req.flags |= ASSOC_REQ_DISABLE_VHT; |
6358 | |
6359 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
6360 | memcpy(&req.vht_capa_mask, |
6361 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), |
6362 | sizeof(req.vht_capa_mask)); |
6363 | |
6364 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { |
6365 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
6366 | return -EINVAL; |
6367 | memcpy(&req.vht_capa, |
6368 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), |
6369 | sizeof(req.vht_capa)); |
6370 | } |
6371 | |
6372 | err = nl80211_crypto_settings(rdev, info, &req.crypto, 1); |
6373 | if (!err) { |
6374 | wdev_lock(dev->ieee80211_ptr); |
6375 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, |
6376 | ssid, ssid_len, &req); |
6377 | wdev_unlock(dev->ieee80211_ptr); |
6378 | } |
6379 | |
6380 | return err; |
6381 | } |
6382 | |
6383 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) |
6384 | { |
6385 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6386 | struct net_device *dev = info->user_ptr[1]; |
6387 | const u8 *ie = NULL, *bssid; |
6388 | int ie_len = 0, err; |
6389 | u16 reason_code; |
6390 | bool local_state_change; |
6391 | |
6392 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6393 | return -EINVAL; |
6394 | |
6395 | if (!info->attrs[NL80211_ATTR_MAC]) |
6396 | return -EINVAL; |
6397 | |
6398 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) |
6399 | return -EINVAL; |
6400 | |
6401 | if (!rdev->ops->deauth) |
6402 | return -EOPNOTSUPP; |
6403 | |
6404 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
6405 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6406 | return -EOPNOTSUPP; |
6407 | |
6408 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
6409 | |
6410 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
6411 | if (reason_code == 0) { |
6412 | /* Reason Code 0 is reserved */ |
6413 | return -EINVAL; |
6414 | } |
6415 | |
6416 | if (info->attrs[NL80211_ATTR_IE]) { |
6417 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6418 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
6419 | } |
6420 | |
6421 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
6422 | |
6423 | wdev_lock(dev->ieee80211_ptr); |
6424 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
6425 | local_state_change); |
6426 | wdev_unlock(dev->ieee80211_ptr); |
6427 | return err; |
6428 | } |
6429 | |
6430 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) |
6431 | { |
6432 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6433 | struct net_device *dev = info->user_ptr[1]; |
6434 | const u8 *ie = NULL, *bssid; |
6435 | int ie_len = 0, err; |
6436 | u16 reason_code; |
6437 | bool local_state_change; |
6438 | |
6439 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6440 | return -EINVAL; |
6441 | |
6442 | if (!info->attrs[NL80211_ATTR_MAC]) |
6443 | return -EINVAL; |
6444 | |
6445 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) |
6446 | return -EINVAL; |
6447 | |
6448 | if (!rdev->ops->disassoc) |
6449 | return -EOPNOTSUPP; |
6450 | |
6451 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
6452 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6453 | return -EOPNOTSUPP; |
6454 | |
6455 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
6456 | |
6457 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
6458 | if (reason_code == 0) { |
6459 | /* Reason Code 0 is reserved */ |
6460 | return -EINVAL; |
6461 | } |
6462 | |
6463 | if (info->attrs[NL80211_ATTR_IE]) { |
6464 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6465 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
6466 | } |
6467 | |
6468 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
6469 | |
6470 | wdev_lock(dev->ieee80211_ptr); |
6471 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
6472 | local_state_change); |
6473 | wdev_unlock(dev->ieee80211_ptr); |
6474 | return err; |
6475 | } |
6476 | |
6477 | static bool |
6478 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, |
6479 | int mcast_rate[IEEE80211_NUM_BANDS], |
6480 | int rateval) |
6481 | { |
6482 | struct wiphy *wiphy = &rdev->wiphy; |
6483 | bool found = false; |
6484 | int band, i; |
6485 | |
6486 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
6487 | struct ieee80211_supported_band *sband; |
6488 | |
6489 | sband = wiphy->bands[band]; |
6490 | if (!sband) |
6491 | continue; |
6492 | |
6493 | for (i = 0; i < sband->n_bitrates; i++) { |
6494 | if (sband->bitrates[i].bitrate == rateval) { |
6495 | mcast_rate[band] = i + 1; |
6496 | found = true; |
6497 | break; |
6498 | } |
6499 | } |
6500 | } |
6501 | |
6502 | return found; |
6503 | } |
6504 | |
6505 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
6506 | { |
6507 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6508 | struct net_device *dev = info->user_ptr[1]; |
6509 | struct cfg80211_ibss_params ibss; |
6510 | struct wiphy *wiphy; |
6511 | struct cfg80211_cached_keys *connkeys = NULL; |
6512 | int err; |
6513 | |
6514 | memset(&ibss, 0, sizeof(ibss)); |
6515 | |
6516 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6517 | return -EINVAL; |
6518 | |
6519 | if (!info->attrs[NL80211_ATTR_SSID] || |
6520 | !nla_len(info->attrs[NL80211_ATTR_SSID])) |
6521 | return -EINVAL; |
6522 | |
6523 | ibss.beacon_interval = 100; |
6524 | |
6525 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
6526 | ibss.beacon_interval = |
6527 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); |
6528 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) |
6529 | return -EINVAL; |
6530 | } |
6531 | |
6532 | if (!rdev->ops->join_ibss) |
6533 | return -EOPNOTSUPP; |
6534 | |
6535 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
6536 | return -EOPNOTSUPP; |
6537 | |
6538 | wiphy = &rdev->wiphy; |
6539 | |
6540 | if (info->attrs[NL80211_ATTR_MAC]) { |
6541 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
6542 | |
6543 | if (!is_valid_ether_addr(ibss.bssid)) |
6544 | return -EINVAL; |
6545 | } |
6546 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
6547 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
6548 | |
6549 | if (info->attrs[NL80211_ATTR_IE]) { |
6550 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6551 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
6552 | } |
6553 | |
6554 | err = nl80211_parse_chandef(rdev, info, &ibss.chandef); |
6555 | if (err) |
6556 | return err; |
6557 | |
6558 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef)) |
6559 | return -EINVAL; |
6560 | |
6561 | switch (ibss.chandef.width) { |
6562 | case NL80211_CHAN_WIDTH_5: |
6563 | case NL80211_CHAN_WIDTH_10: |
6564 | case NL80211_CHAN_WIDTH_20_NOHT: |
6565 | break; |
6566 | case NL80211_CHAN_WIDTH_20: |
6567 | case NL80211_CHAN_WIDTH_40: |
6568 | if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS) |
6569 | break; |
6570 | default: |
6571 | return -EINVAL; |
6572 | } |
6573 | |
6574 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
6575 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
6576 | |
6577 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
6578 | u8 *rates = |
6579 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
6580 | int n_rates = |
6581 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
6582 | struct ieee80211_supported_band *sband = |
6583 | wiphy->bands[ibss.chandef.chan->band]; |
6584 | |
6585 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
6586 | &ibss.basic_rates); |
6587 | if (err) |
6588 | return err; |
6589 | } |
6590 | |
6591 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
6592 | memcpy(&ibss.ht_capa_mask, |
6593 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), |
6594 | sizeof(ibss.ht_capa_mask)); |
6595 | |
6596 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { |
6597 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
6598 | return -EINVAL; |
6599 | memcpy(&ibss.ht_capa, |
6600 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), |
6601 | sizeof(ibss.ht_capa)); |
6602 | } |
6603 | |
6604 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
6605 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, |
6606 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) |
6607 | return -EINVAL; |
6608 | |
6609 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
6610 | bool no_ht = false; |
6611 | |
6612 | connkeys = nl80211_parse_connkeys(rdev, |
6613 | info->attrs[NL80211_ATTR_KEYS], |
6614 | &no_ht); |
6615 | if (IS_ERR(connkeys)) |
6616 | return PTR_ERR(connkeys); |
6617 | |
6618 | if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) && |
6619 | no_ht) { |
6620 | kfree(connkeys); |
6621 | return -EINVAL; |
6622 | } |
6623 | } |
6624 | |
6625 | ibss.control_port = |
6626 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); |
6627 | |
6628 | ibss.userspace_handles_dfs = |
6629 | nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]); |
6630 | |
6631 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
6632 | if (err) |
6633 | kfree(connkeys); |
6634 | return err; |
6635 | } |
6636 | |
6637 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) |
6638 | { |
6639 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6640 | struct net_device *dev = info->user_ptr[1]; |
6641 | |
6642 | if (!rdev->ops->leave_ibss) |
6643 | return -EOPNOTSUPP; |
6644 | |
6645 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
6646 | return -EOPNOTSUPP; |
6647 | |
6648 | return cfg80211_leave_ibss(rdev, dev, false); |
6649 | } |
6650 | |
6651 | static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info) |
6652 | { |
6653 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6654 | struct net_device *dev = info->user_ptr[1]; |
6655 | int mcast_rate[IEEE80211_NUM_BANDS]; |
6656 | u32 nla_rate; |
6657 | int err; |
6658 | |
6659 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
6660 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
6661 | return -EOPNOTSUPP; |
6662 | |
6663 | if (!rdev->ops->set_mcast_rate) |
6664 | return -EOPNOTSUPP; |
6665 | |
6666 | memset(mcast_rate, 0, sizeof(mcast_rate)); |
6667 | |
6668 | if (!info->attrs[NL80211_ATTR_MCAST_RATE]) |
6669 | return -EINVAL; |
6670 | |
6671 | nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]); |
6672 | if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate)) |
6673 | return -EINVAL; |
6674 | |
6675 | err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate); |
6676 | |
6677 | return err; |
6678 | } |
6679 | |
6680 | |
6681 | #ifdef CONFIG_NL80211_TESTMODE |
6682 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) |
6683 | { |
6684 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6685 | struct wireless_dev *wdev = |
6686 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); |
6687 | int err; |
6688 | |
6689 | if (!rdev->ops->testmode_cmd) |
6690 | return -EOPNOTSUPP; |
6691 | |
6692 | if (IS_ERR(wdev)) { |
6693 | err = PTR_ERR(wdev); |
6694 | if (err != -EINVAL) |
6695 | return err; |
6696 | wdev = NULL; |
6697 | } else if (wdev->wiphy != &rdev->wiphy) { |
6698 | return -EINVAL; |
6699 | } |
6700 | |
6701 | if (!info->attrs[NL80211_ATTR_TESTDATA]) |
6702 | return -EINVAL; |
6703 | |
6704 | rdev->testmode_info = info; |
6705 | err = rdev_testmode_cmd(rdev, wdev, |
6706 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), |
6707 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); |
6708 | rdev->testmode_info = NULL; |
6709 | |
6710 | return err; |
6711 | } |
6712 | |
6713 | static int nl80211_testmode_dump(struct sk_buff *skb, |
6714 | struct netlink_callback *cb) |
6715 | { |
6716 | struct cfg80211_registered_device *rdev; |
6717 | int err; |
6718 | long phy_idx; |
6719 | void *data = NULL; |
6720 | int data_len = 0; |
6721 | |
6722 | rtnl_lock(); |
6723 | |
6724 | if (cb->args[0]) { |
6725 | /* |
6726 | * 0 is a valid index, but not valid for args[0], |
6727 | * so we need to offset by 1. |
6728 | */ |
6729 | phy_idx = cb->args[0] - 1; |
6730 | } else { |
6731 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, |
6732 | nl80211_fam.attrbuf, nl80211_fam.maxattr, |
6733 | nl80211_policy); |
6734 | if (err) |
6735 | goto out_err; |
6736 | |
6737 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), |
6738 | nl80211_fam.attrbuf); |
6739 | if (IS_ERR(rdev)) { |
6740 | err = PTR_ERR(rdev); |
6741 | goto out_err; |
6742 | } |
6743 | phy_idx = rdev->wiphy_idx; |
6744 | rdev = NULL; |
6745 | |
6746 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
6747 | cb->args[1] = |
6748 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; |
6749 | } |
6750 | |
6751 | if (cb->args[1]) { |
6752 | data = nla_data((void *)cb->args[1]); |
6753 | data_len = nla_len((void *)cb->args[1]); |
6754 | } |
6755 | |
6756 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
6757 | if (!rdev) { |
6758 | err = -ENOENT; |
6759 | goto out_err; |
6760 | } |
6761 | |
6762 | if (!rdev->ops->testmode_dump) { |
6763 | err = -EOPNOTSUPP; |
6764 | goto out_err; |
6765 | } |
6766 | |
6767 | while (1) { |
6768 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
6769 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
6770 | NL80211_CMD_TESTMODE); |
6771 | struct nlattr *tmdata; |
6772 | |
6773 | if (!hdr) |
6774 | break; |
6775 | |
6776 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
6777 | genlmsg_cancel(skb, hdr); |
6778 | break; |
6779 | } |
6780 | |
6781 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); |
6782 | if (!tmdata) { |
6783 | genlmsg_cancel(skb, hdr); |
6784 | break; |
6785 | } |
6786 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); |
6787 | nla_nest_end(skb, tmdata); |
6788 | |
6789 | if (err == -ENOBUFS || err == -ENOENT) { |
6790 | genlmsg_cancel(skb, hdr); |
6791 | break; |
6792 | } else if (err) { |
6793 | genlmsg_cancel(skb, hdr); |
6794 | goto out_err; |
6795 | } |
6796 | |
6797 | genlmsg_end(skb, hdr); |
6798 | } |
6799 | |
6800 | err = skb->len; |
6801 | /* see above */ |
6802 | cb->args[0] = phy_idx + 1; |
6803 | out_err: |
6804 | rtnl_unlock(); |
6805 | return err; |
6806 | } |
6807 | |
6808 | static struct sk_buff * |
6809 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, |
6810 | int approxlen, u32 portid, u32 seq, gfp_t gfp) |
6811 | { |
6812 | struct sk_buff *skb; |
6813 | void *hdr; |
6814 | struct nlattr *data; |
6815 | |
6816 | skb = nlmsg_new(approxlen + 100, gfp); |
6817 | if (!skb) |
6818 | return NULL; |
6819 | |
6820 | hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE); |
6821 | if (!hdr) { |
6822 | kfree_skb(skb); |
6823 | return NULL; |
6824 | } |
6825 | |
6826 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
6827 | goto nla_put_failure; |
6828 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); |
6829 | |
6830 | ((void **)skb->cb)[0] = rdev; |
6831 | ((void **)skb->cb)[1] = hdr; |
6832 | ((void **)skb->cb)[2] = data; |
6833 | |
6834 | return skb; |
6835 | |
6836 | nla_put_failure: |
6837 | kfree_skb(skb); |
6838 | return NULL; |
6839 | } |
6840 | |
6841 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, |
6842 | int approxlen) |
6843 | { |
6844 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
6845 | |
6846 | if (WARN_ON(!rdev->testmode_info)) |
6847 | return NULL; |
6848 | |
6849 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, |
6850 | rdev->testmode_info->snd_portid, |
6851 | rdev->testmode_info->snd_seq, |
6852 | GFP_KERNEL); |
6853 | } |
6854 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); |
6855 | |
6856 | int cfg80211_testmode_reply(struct sk_buff *skb) |
6857 | { |
6858 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; |
6859 | void *hdr = ((void **)skb->cb)[1]; |
6860 | struct nlattr *data = ((void **)skb->cb)[2]; |
6861 | |
6862 | if (WARN_ON(!rdev->testmode_info)) { |
6863 | kfree_skb(skb); |
6864 | return -EINVAL; |
6865 | } |
6866 | |
6867 | nla_nest_end(skb, data); |
6868 | genlmsg_end(skb, hdr); |
6869 | return genlmsg_reply(skb, rdev->testmode_info); |
6870 | } |
6871 | EXPORT_SYMBOL(cfg80211_testmode_reply); |
6872 | |
6873 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, |
6874 | int approxlen, gfp_t gfp) |
6875 | { |
6876 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
6877 | |
6878 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); |
6879 | } |
6880 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); |
6881 | |
6882 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) |
6883 | { |
6884 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; |
6885 | void *hdr = ((void **)skb->cb)[1]; |
6886 | struct nlattr *data = ((void **)skb->cb)[2]; |
6887 | |
6888 | nla_nest_end(skb, data); |
6889 | genlmsg_end(skb, hdr); |
6890 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0, |
6891 | NL80211_MCGRP_TESTMODE, gfp); |
6892 | } |
6893 | EXPORT_SYMBOL(cfg80211_testmode_event); |
6894 | #endif |
6895 | |
6896 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
6897 | { |
6898 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6899 | struct net_device *dev = info->user_ptr[1]; |
6900 | struct cfg80211_connect_params connect; |
6901 | struct wiphy *wiphy; |
6902 | struct cfg80211_cached_keys *connkeys = NULL; |
6903 | int err; |
6904 | |
6905 | memset(&connect, 0, sizeof(connect)); |
6906 | |
6907 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6908 | return -EINVAL; |
6909 | |
6910 | if (!info->attrs[NL80211_ATTR_SSID] || |
6911 | !nla_len(info->attrs[NL80211_ATTR_SSID])) |
6912 | return -EINVAL; |
6913 | |
6914 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { |
6915 | connect.auth_type = |
6916 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
6917 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
6918 | NL80211_CMD_CONNECT)) |
6919 | return -EINVAL; |
6920 | } else |
6921 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; |
6922 | |
6923 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; |
6924 | |
6925 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
6926 | NL80211_MAX_NR_CIPHER_SUITES); |
6927 | if (err) |
6928 | return err; |
6929 | |
6930 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
6931 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6932 | return -EOPNOTSUPP; |
6933 | |
6934 | wiphy = &rdev->wiphy; |
6935 | |
6936 | connect.bg_scan_period = -1; |
6937 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && |
6938 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { |
6939 | connect.bg_scan_period = |
6940 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); |
6941 | } |
6942 | |
6943 | if (info->attrs[NL80211_ATTR_MAC]) |
6944 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
6945 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
6946 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |
6947 | |
6948 | if (info->attrs[NL80211_ATTR_IE]) { |
6949 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6950 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
6951 | } |
6952 | |
6953 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
6954 | connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
6955 | if (connect.mfp != NL80211_MFP_REQUIRED && |
6956 | connect.mfp != NL80211_MFP_NO) |
6957 | return -EINVAL; |
6958 | } else { |
6959 | connect.mfp = NL80211_MFP_NO; |
6960 | } |
6961 | |
6962 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
6963 | connect.channel = |
6964 | ieee80211_get_channel(wiphy, |
6965 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
6966 | if (!connect.channel || |
6967 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
6968 | return -EINVAL; |
6969 | } |
6970 | |
6971 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
6972 | connkeys = nl80211_parse_connkeys(rdev, |
6973 | info->attrs[NL80211_ATTR_KEYS], NULL); |
6974 | if (IS_ERR(connkeys)) |
6975 | return PTR_ERR(connkeys); |
6976 | } |
6977 | |
6978 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
6979 | connect.flags |= ASSOC_REQ_DISABLE_HT; |
6980 | |
6981 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
6982 | memcpy(&connect.ht_capa_mask, |
6983 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), |
6984 | sizeof(connect.ht_capa_mask)); |
6985 | |
6986 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { |
6987 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
6988 | kfree(connkeys); |
6989 | return -EINVAL; |
6990 | } |
6991 | memcpy(&connect.ht_capa, |
6992 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), |
6993 | sizeof(connect.ht_capa)); |
6994 | } |
6995 | |
6996 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
6997 | connect.flags |= ASSOC_REQ_DISABLE_VHT; |
6998 | |
6999 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
7000 | memcpy(&connect.vht_capa_mask, |
7001 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), |
7002 | sizeof(connect.vht_capa_mask)); |
7003 | |
7004 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { |
7005 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) { |
7006 | kfree(connkeys); |
7007 | return -EINVAL; |
7008 | } |
7009 | memcpy(&connect.vht_capa, |
7010 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), |
7011 | sizeof(connect.vht_capa)); |
7012 | } |
7013 | |
7014 | wdev_lock(dev->ieee80211_ptr); |
7015 | err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL); |
7016 | wdev_unlock(dev->ieee80211_ptr); |
7017 | if (err) |
7018 | kfree(connkeys); |
7019 | return err; |
7020 | } |
7021 | |
7022 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) |
7023 | { |
7024 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7025 | struct net_device *dev = info->user_ptr[1]; |
7026 | u16 reason; |
7027 | int ret; |
7028 | |
7029 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) |
7030 | reason = WLAN_REASON_DEAUTH_LEAVING; |
7031 | else |
7032 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
7033 | |
7034 | if (reason == 0) |
7035 | return -EINVAL; |
7036 | |
7037 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
7038 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7039 | return -EOPNOTSUPP; |
7040 | |
7041 | wdev_lock(dev->ieee80211_ptr); |
7042 | ret = cfg80211_disconnect(rdev, dev, reason, true); |
7043 | wdev_unlock(dev->ieee80211_ptr); |
7044 | return ret; |
7045 | } |
7046 | |
7047 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
7048 | { |
7049 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7050 | struct net *net; |
7051 | int err; |
7052 | u32 pid; |
7053 | |
7054 | if (!info->attrs[NL80211_ATTR_PID]) |
7055 | return -EINVAL; |
7056 | |
7057 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); |
7058 | |
7059 | net = get_net_ns_by_pid(pid); |
7060 | if (IS_ERR(net)) |
7061 | return PTR_ERR(net); |
7062 | |
7063 | err = 0; |
7064 | |
7065 | /* check if anything to do */ |
7066 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
7067 | err = cfg80211_switch_netns(rdev, net); |
7068 | |
7069 | put_net(net); |
7070 | return err; |
7071 | } |
7072 | |
7073 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
7074 | { |
7075 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7076 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
7077 | struct cfg80211_pmksa *pmksa) = NULL; |
7078 | struct net_device *dev = info->user_ptr[1]; |
7079 | struct cfg80211_pmksa pmksa; |
7080 | |
7081 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); |
7082 | |
7083 | if (!info->attrs[NL80211_ATTR_MAC]) |
7084 | return -EINVAL; |
7085 | |
7086 | if (!info->attrs[NL80211_ATTR_PMKID]) |
7087 | return -EINVAL; |
7088 | |
7089 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
7090 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
7091 | |
7092 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
7093 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7094 | return -EOPNOTSUPP; |
7095 | |
7096 | switch (info->genlhdr->cmd) { |
7097 | case NL80211_CMD_SET_PMKSA: |
7098 | rdev_ops = rdev->ops->set_pmksa; |
7099 | break; |
7100 | case NL80211_CMD_DEL_PMKSA: |
7101 | rdev_ops = rdev->ops->del_pmksa; |
7102 | break; |
7103 | default: |
7104 | WARN_ON(1); |
7105 | break; |
7106 | } |
7107 | |
7108 | if (!rdev_ops) |
7109 | return -EOPNOTSUPP; |
7110 | |
7111 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
7112 | } |
7113 | |
7114 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) |
7115 | { |
7116 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7117 | struct net_device *dev = info->user_ptr[1]; |
7118 | |
7119 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
7120 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7121 | return -EOPNOTSUPP; |
7122 | |
7123 | if (!rdev->ops->flush_pmksa) |
7124 | return -EOPNOTSUPP; |
7125 | |
7126 | return rdev_flush_pmksa(rdev, dev); |
7127 | } |
7128 | |
7129 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
7130 | { |
7131 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7132 | struct net_device *dev = info->user_ptr[1]; |
7133 | u8 action_code, dialog_token; |
7134 | u16 status_code; |
7135 | u8 *peer; |
7136 | |
7137 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || |
7138 | !rdev->ops->tdls_mgmt) |
7139 | return -EOPNOTSUPP; |
7140 | |
7141 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || |
7142 | !info->attrs[NL80211_ATTR_STATUS_CODE] || |
7143 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || |
7144 | !info->attrs[NL80211_ATTR_IE] || |
7145 | !info->attrs[NL80211_ATTR_MAC]) |
7146 | return -EINVAL; |
7147 | |
7148 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); |
7149 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); |
7150 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); |
7151 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); |
7152 | |
7153 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, |
7154 | dialog_token, status_code, |
7155 | nla_data(info->attrs[NL80211_ATTR_IE]), |
7156 | nla_len(info->attrs[NL80211_ATTR_IE])); |
7157 | } |
7158 | |
7159 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) |
7160 | { |
7161 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7162 | struct net_device *dev = info->user_ptr[1]; |
7163 | enum nl80211_tdls_operation operation; |
7164 | u8 *peer; |
7165 | |
7166 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || |
7167 | !rdev->ops->tdls_oper) |
7168 | return -EOPNOTSUPP; |
7169 | |
7170 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || |
7171 | !info->attrs[NL80211_ATTR_MAC]) |
7172 | return -EINVAL; |
7173 | |
7174 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); |
7175 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); |
7176 | |
7177 | return rdev_tdls_oper(rdev, dev, peer, operation); |
7178 | } |
7179 | |
7180 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
7181 | struct genl_info *info) |
7182 | { |
7183 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7184 | struct wireless_dev *wdev = info->user_ptr[1]; |
7185 | struct cfg80211_chan_def chandef; |
7186 | struct sk_buff *msg; |
7187 | void *hdr; |
7188 | u64 cookie; |
7189 | u32 duration; |
7190 | int err; |
7191 | |
7192 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || |
7193 | !info->attrs[NL80211_ATTR_DURATION]) |
7194 | return -EINVAL; |
7195 | |
7196 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); |
7197 | |
7198 | if (!rdev->ops->remain_on_channel || |
7199 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) |
7200 | return -EOPNOTSUPP; |
7201 | |
7202 | /* |
7203 | * We should be on that channel for at least a minimum amount of |
7204 | * time (10ms) but no longer than the driver supports. |
7205 | */ |
7206 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
7207 | duration > rdev->wiphy.max_remain_on_channel_duration) |
7208 | return -EINVAL; |
7209 | |
7210 | err = nl80211_parse_chandef(rdev, info, &chandef); |
7211 | if (err) |
7212 | return err; |
7213 | |
7214 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
7215 | if (!msg) |
7216 | return -ENOMEM; |
7217 | |
7218 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7219 | NL80211_CMD_REMAIN_ON_CHANNEL); |
7220 | if (!hdr) { |
7221 | err = -ENOBUFS; |
7222 | goto free_msg; |
7223 | } |
7224 | |
7225 | err = rdev_remain_on_channel(rdev, wdev, chandef.chan, |
7226 | duration, &cookie); |
7227 | |
7228 | if (err) |
7229 | goto free_msg; |
7230 | |
7231 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
7232 | goto nla_put_failure; |
7233 | |
7234 | genlmsg_end(msg, hdr); |
7235 | |
7236 | return genlmsg_reply(msg, info); |
7237 | |
7238 | nla_put_failure: |
7239 | err = -ENOBUFS; |
7240 | free_msg: |
7241 | nlmsg_free(msg); |
7242 | return err; |
7243 | } |
7244 | |
7245 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, |
7246 | struct genl_info *info) |
7247 | { |
7248 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7249 | struct wireless_dev *wdev = info->user_ptr[1]; |
7250 | u64 cookie; |
7251 | |
7252 | if (!info->attrs[NL80211_ATTR_COOKIE]) |
7253 | return -EINVAL; |
7254 | |
7255 | if (!rdev->ops->cancel_remain_on_channel) |
7256 | return -EOPNOTSUPP; |
7257 | |
7258 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
7259 | |
7260 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); |
7261 | } |
7262 | |
7263 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
7264 | u8 *rates, u8 rates_len) |
7265 | { |
7266 | u8 i; |
7267 | u32 mask = 0; |
7268 | |
7269 | for (i = 0; i < rates_len; i++) { |
7270 | int rate = (rates[i] & 0x7f) * 5; |
7271 | int ridx; |
7272 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { |
7273 | struct ieee80211_rate *srate = |
7274 | &sband->bitrates[ridx]; |
7275 | if (rate == srate->bitrate) { |
7276 | mask |= 1 << ridx; |
7277 | break; |
7278 | } |
7279 | } |
7280 | if (ridx == sband->n_bitrates) |
7281 | return 0; /* rate not found */ |
7282 | } |
7283 | |
7284 | return mask; |
7285 | } |
7286 | |
7287 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
7288 | u8 *rates, u8 rates_len, |
7289 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) |
7290 | { |
7291 | u8 i; |
7292 | |
7293 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); |
7294 | |
7295 | for (i = 0; i < rates_len; i++) { |
7296 | int ridx, rbit; |
7297 | |
7298 | ridx = rates[i] / 8; |
7299 | rbit = BIT(rates[i] % 8); |
7300 | |
7301 | /* check validity */ |
7302 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
7303 | return false; |
7304 | |
7305 | /* check availability */ |
7306 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) |
7307 | mcs[ridx] |= rbit; |
7308 | else |
7309 | return false; |
7310 | } |
7311 | |
7312 | return true; |
7313 | } |
7314 | |
7315 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
7316 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
7317 | .len = NL80211_MAX_SUPP_RATES }, |
7318 | [NL80211_TXRATE_MCS] = { .type = NLA_BINARY, |
7319 | .len = NL80211_MAX_SUPP_HT_RATES }, |
7320 | }; |
7321 | |
7322 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, |
7323 | struct genl_info *info) |
7324 | { |
7325 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; |
7326 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7327 | struct cfg80211_bitrate_mask mask; |
7328 | int rem, i; |
7329 | struct net_device *dev = info->user_ptr[1]; |
7330 | struct nlattr *tx_rates; |
7331 | struct ieee80211_supported_band *sband; |
7332 | |
7333 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) |
7334 | return -EINVAL; |
7335 | |
7336 | if (!rdev->ops->set_bitrate_mask) |
7337 | return -EOPNOTSUPP; |
7338 | |
7339 | memset(&mask, 0, sizeof(mask)); |
7340 | /* Default to all rates enabled */ |
7341 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { |
7342 | sband = rdev->wiphy.bands[i]; |
7343 | mask.control[i].legacy = |
7344 | sband ? (1 << sband->n_bitrates) - 1 : 0; |
7345 | if (sband) |
7346 | memcpy(mask.control[i].mcs, |
7347 | sband->ht_cap.mcs.rx_mask, |
7348 | sizeof(mask.control[i].mcs)); |
7349 | else |
7350 | memset(mask.control[i].mcs, 0, |
7351 | sizeof(mask.control[i].mcs)); |
7352 | } |
7353 | |
7354 | /* |
7355 | * The nested attribute uses enum nl80211_band as the index. This maps |
7356 | * directly to the enum ieee80211_band values used in cfg80211. |
7357 | */ |
7358 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
7359 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) |
7360 | { |
7361 | enum ieee80211_band band = nla_type(tx_rates); |
7362 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
7363 | return -EINVAL; |
7364 | sband = rdev->wiphy.bands[band]; |
7365 | if (sband == NULL) |
7366 | return -EINVAL; |
7367 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
7368 | nla_len(tx_rates), nl80211_txattr_policy); |
7369 | if (tb[NL80211_TXRATE_LEGACY]) { |
7370 | mask.control[band].legacy = rateset_to_mask( |
7371 | sband, |
7372 | nla_data(tb[NL80211_TXRATE_LEGACY]), |
7373 | nla_len(tb[NL80211_TXRATE_LEGACY])); |
7374 | if ((mask.control[band].legacy == 0) && |
7375 | nla_len(tb[NL80211_TXRATE_LEGACY])) |
7376 | return -EINVAL; |
7377 | } |
7378 | if (tb[NL80211_TXRATE_MCS]) { |
7379 | if (!ht_rateset_to_mask( |
7380 | sband, |
7381 | nla_data(tb[NL80211_TXRATE_MCS]), |
7382 | nla_len(tb[NL80211_TXRATE_MCS]), |
7383 | mask.control[band].mcs)) |
7384 | return -EINVAL; |
7385 | } |
7386 | |
7387 | if (mask.control[band].legacy == 0) { |
7388 | /* don't allow empty legacy rates if HT |
7389 | * is not even supported. */ |
7390 | if (!rdev->wiphy.bands[band]->ht_cap.ht_supported) |
7391 | return -EINVAL; |
7392 | |
7393 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) |
7394 | if (mask.control[band].mcs[i]) |
7395 | break; |
7396 | |
7397 | /* legacy and mcs rates may not be both empty */ |
7398 | if (i == IEEE80211_HT_MCS_MASK_LEN) |
7399 | return -EINVAL; |
7400 | } |
7401 | } |
7402 | |
7403 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); |
7404 | } |
7405 | |
7406 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
7407 | { |
7408 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7409 | struct wireless_dev *wdev = info->user_ptr[1]; |
7410 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
7411 | |
7412 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) |
7413 | return -EINVAL; |
7414 | |
7415 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
7416 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); |
7417 | |
7418 | switch (wdev->iftype) { |
7419 | case NL80211_IFTYPE_STATION: |
7420 | case NL80211_IFTYPE_ADHOC: |
7421 | case NL80211_IFTYPE_P2P_CLIENT: |
7422 | case NL80211_IFTYPE_AP: |
7423 | case NL80211_IFTYPE_AP_VLAN: |
7424 | case NL80211_IFTYPE_MESH_POINT: |
7425 | case NL80211_IFTYPE_P2P_GO: |
7426 | case NL80211_IFTYPE_P2P_DEVICE: |
7427 | break; |
7428 | default: |
7429 | return -EOPNOTSUPP; |
7430 | } |
7431 | |
7432 | /* not much point in registering if we can't reply */ |
7433 | if (!rdev->ops->mgmt_tx) |
7434 | return -EOPNOTSUPP; |
7435 | |
7436 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
7437 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
7438 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); |
7439 | } |
7440 | |
7441 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
7442 | { |
7443 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7444 | struct wireless_dev *wdev = info->user_ptr[1]; |
7445 | struct cfg80211_chan_def chandef; |
7446 | int err; |
7447 | void *hdr = NULL; |
7448 | u64 cookie; |
7449 | struct sk_buff *msg = NULL; |
7450 | unsigned int wait = 0; |
7451 | bool offchan, no_cck, dont_wait_for_ack; |
7452 | |
7453 | dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; |
7454 | |
7455 | if (!info->attrs[NL80211_ATTR_FRAME]) |
7456 | return -EINVAL; |
7457 | |
7458 | if (!rdev->ops->mgmt_tx) |
7459 | return -EOPNOTSUPP; |
7460 | |
7461 | switch (wdev->iftype) { |
7462 | case NL80211_IFTYPE_P2P_DEVICE: |
7463 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) |
7464 | return -EINVAL; |
7465 | case NL80211_IFTYPE_STATION: |
7466 | case NL80211_IFTYPE_ADHOC: |
7467 | case NL80211_IFTYPE_P2P_CLIENT: |
7468 | case NL80211_IFTYPE_AP: |
7469 | case NL80211_IFTYPE_AP_VLAN: |
7470 | case NL80211_IFTYPE_MESH_POINT: |
7471 | case NL80211_IFTYPE_P2P_GO: |
7472 | break; |
7473 | default: |
7474 | return -EOPNOTSUPP; |
7475 | } |
7476 | |
7477 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7478 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
7479 | return -EINVAL; |
7480 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); |
7481 | |
7482 | /* |
7483 | * We should wait on the channel for at least a minimum amount |
7484 | * of time (10ms) but no longer than the driver supports. |
7485 | */ |
7486 | if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
7487 | wait > rdev->wiphy.max_remain_on_channel_duration) |
7488 | return -EINVAL; |
7489 | |
7490 | } |
7491 | |
7492 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
7493 | |
7494 | if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
7495 | return -EINVAL; |
7496 | |
7497 | no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
7498 | |
7499 | /* get the channel if any has been specified, otherwise pass NULL to |
7500 | * the driver. The latter will use the current one |
7501 | */ |
7502 | chandef.chan = NULL; |
7503 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
7504 | err = nl80211_parse_chandef(rdev, info, &chandef); |
7505 | if (err) |
7506 | return err; |
7507 | } |
7508 | |
7509 | if (!chandef.chan && offchan) |
7510 | return -EINVAL; |
7511 | |
7512 | if (!dont_wait_for_ack) { |
7513 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
7514 | if (!msg) |
7515 | return -ENOMEM; |
7516 | |
7517 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7518 | NL80211_CMD_FRAME); |
7519 | if (!hdr) { |
7520 | err = -ENOBUFS; |
7521 | goto free_msg; |
7522 | } |
7523 | } |
7524 | |
7525 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait, |
7526 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
7527 | nla_len(info->attrs[NL80211_ATTR_FRAME]), |
7528 | no_cck, dont_wait_for_ack, &cookie); |
7529 | if (err) |
7530 | goto free_msg; |
7531 | |
7532 | if (msg) { |
7533 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
7534 | goto nla_put_failure; |
7535 | |
7536 | genlmsg_end(msg, hdr); |
7537 | return genlmsg_reply(msg, info); |
7538 | } |
7539 | |
7540 | return 0; |
7541 | |
7542 | nla_put_failure: |
7543 | err = -ENOBUFS; |
7544 | free_msg: |
7545 | nlmsg_free(msg); |
7546 | return err; |
7547 | } |
7548 | |
7549 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
7550 | { |
7551 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7552 | struct wireless_dev *wdev = info->user_ptr[1]; |
7553 | u64 cookie; |
7554 | |
7555 | if (!info->attrs[NL80211_ATTR_COOKIE]) |
7556 | return -EINVAL; |
7557 | |
7558 | if (!rdev->ops->mgmt_tx_cancel_wait) |
7559 | return -EOPNOTSUPP; |
7560 | |
7561 | switch (wdev->iftype) { |
7562 | case NL80211_IFTYPE_STATION: |
7563 | case NL80211_IFTYPE_ADHOC: |
7564 | case NL80211_IFTYPE_P2P_CLIENT: |
7565 | case NL80211_IFTYPE_AP: |
7566 | case NL80211_IFTYPE_AP_VLAN: |
7567 | case NL80211_IFTYPE_P2P_GO: |
7568 | case NL80211_IFTYPE_P2P_DEVICE: |
7569 | break; |
7570 | default: |
7571 | return -EOPNOTSUPP; |
7572 | } |
7573 | |
7574 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
7575 | |
7576 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); |
7577 | } |
7578 | |
7579 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
7580 | { |
7581 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7582 | struct wireless_dev *wdev; |
7583 | struct net_device *dev = info->user_ptr[1]; |
7584 | u8 ps_state; |
7585 | bool state; |
7586 | int err; |
7587 | |
7588 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
7589 | return -EINVAL; |
7590 | |
7591 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); |
7592 | |
7593 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
7594 | return -EINVAL; |
7595 | |
7596 | wdev = dev->ieee80211_ptr; |
7597 | |
7598 | if (!rdev->ops->set_power_mgmt) |
7599 | return -EOPNOTSUPP; |
7600 | |
7601 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; |
7602 | |
7603 | if (state == wdev->ps) |
7604 | return 0; |
7605 | |
7606 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); |
7607 | if (!err) |
7608 | wdev->ps = state; |
7609 | return err; |
7610 | } |
7611 | |
7612 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) |
7613 | { |
7614 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7615 | enum nl80211_ps_state ps_state; |
7616 | struct wireless_dev *wdev; |
7617 | struct net_device *dev = info->user_ptr[1]; |
7618 | struct sk_buff *msg; |
7619 | void *hdr; |
7620 | int err; |
7621 | |
7622 | wdev = dev->ieee80211_ptr; |
7623 | |
7624 | if (!rdev->ops->set_power_mgmt) |
7625 | return -EOPNOTSUPP; |
7626 | |
7627 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
7628 | if (!msg) |
7629 | return -ENOMEM; |
7630 | |
7631 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7632 | NL80211_CMD_GET_POWER_SAVE); |
7633 | if (!hdr) { |
7634 | err = -ENOBUFS; |
7635 | goto free_msg; |
7636 | } |
7637 | |
7638 | if (wdev->ps) |
7639 | ps_state = NL80211_PS_ENABLED; |
7640 | else |
7641 | ps_state = NL80211_PS_DISABLED; |
7642 | |
7643 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
7644 | goto nla_put_failure; |
7645 | |
7646 | genlmsg_end(msg, hdr); |
7647 | return genlmsg_reply(msg, info); |
7648 | |
7649 | nla_put_failure: |
7650 | err = -ENOBUFS; |
7651 | free_msg: |
7652 | nlmsg_free(msg); |
7653 | return err; |
7654 | } |
7655 | |
7656 | static struct nla_policy |
7657 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { |
7658 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, |
7659 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, |
7660 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, |
7661 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
7662 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, |
7663 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, |
7664 | }; |
7665 | |
7666 | static int nl80211_set_cqm_txe(struct genl_info *info, |
7667 | u32 rate, u32 pkts, u32 intvl) |
7668 | { |
7669 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7670 | struct net_device *dev = info->user_ptr[1]; |
7671 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
7672 | |
7673 | if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL) |
7674 | return -EINVAL; |
7675 | |
7676 | if (!rdev->ops->set_cqm_txe_config) |
7677 | return -EOPNOTSUPP; |
7678 | |
7679 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
7680 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7681 | return -EOPNOTSUPP; |
7682 | |
7683 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); |
7684 | } |
7685 | |
7686 | static int nl80211_set_cqm_rssi(struct genl_info *info, |
7687 | s32 threshold, u32 hysteresis) |
7688 | { |
7689 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7690 | struct net_device *dev = info->user_ptr[1]; |
7691 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
7692 | |
7693 | if (threshold > 0) |
7694 | return -EINVAL; |
7695 | |
7696 | /* disabling - hysteresis should also be zero then */ |
7697 | if (threshold == 0) |
7698 | hysteresis = 0; |
7699 | |
7700 | if (!rdev->ops->set_cqm_rssi_config) |
7701 | return -EOPNOTSUPP; |
7702 | |
7703 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
7704 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7705 | return -EOPNOTSUPP; |
7706 | |
7707 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); |
7708 | } |
7709 | |
7710 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) |
7711 | { |
7712 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; |
7713 | struct nlattr *cqm; |
7714 | int err; |
7715 | |
7716 | cqm = info->attrs[NL80211_ATTR_CQM]; |
7717 | if (!cqm) |
7718 | return -EINVAL; |
7719 | |
7720 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, |
7721 | nl80211_attr_cqm_policy); |
7722 | if (err) |
7723 | return err; |
7724 | |
7725 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && |
7726 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { |
7727 | s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); |
7728 | u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); |
7729 | |
7730 | return nl80211_set_cqm_rssi(info, threshold, hysteresis); |
7731 | } |
7732 | |
7733 | if (attrs[NL80211_ATTR_CQM_TXE_RATE] && |
7734 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && |
7735 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { |
7736 | u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); |
7737 | u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); |
7738 | u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); |
7739 | |
7740 | return nl80211_set_cqm_txe(info, rate, pkts, intvl); |
7741 | } |
7742 | |
7743 | return -EINVAL; |
7744 | } |
7745 | |
7746 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
7747 | { |
7748 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7749 | struct net_device *dev = info->user_ptr[1]; |
7750 | struct mesh_config cfg; |
7751 | struct mesh_setup setup; |
7752 | int err; |
7753 | |
7754 | /* start with default */ |
7755 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); |
7756 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
7757 | |
7758 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
7759 | /* and parse parameters if given */ |
7760 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
7761 | if (err) |
7762 | return err; |
7763 | } |
7764 | |
7765 | if (!info->attrs[NL80211_ATTR_MESH_ID] || |
7766 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) |
7767 | return -EINVAL; |
7768 | |
7769 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
7770 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
7771 | |
7772 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
7773 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, |
7774 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) |
7775 | return -EINVAL; |
7776 | |
7777 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
7778 | setup.beacon_interval = |
7779 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); |
7780 | if (setup.beacon_interval < 10 || |
7781 | setup.beacon_interval > 10000) |
7782 | return -EINVAL; |
7783 | } |
7784 | |
7785 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { |
7786 | setup.dtim_period = |
7787 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); |
7788 | if (setup.dtim_period < 1 || setup.dtim_period > 100) |
7789 | return -EINVAL; |
7790 | } |
7791 | |
7792 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
7793 | /* parse additional setup parameters if given */ |
7794 | err = nl80211_parse_mesh_setup(info, &setup); |
7795 | if (err) |
7796 | return err; |
7797 | } |
7798 | |
7799 | if (setup.user_mpm) |
7800 | cfg.auto_open_plinks = false; |
7801 | |
7802 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
7803 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); |
7804 | if (err) |
7805 | return err; |
7806 | } else { |
7807 | /* cfg80211_join_mesh() will sort it out */ |
7808 | setup.chandef.chan = NULL; |
7809 | } |
7810 | |
7811 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
7812 | u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
7813 | int n_rates = |
7814 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); |
7815 | struct ieee80211_supported_band *sband; |
7816 | |
7817 | if (!setup.chandef.chan) |
7818 | return -EINVAL; |
7819 | |
7820 | sband = rdev->wiphy.bands[setup.chandef.chan->band]; |
7821 | |
7822 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
7823 | &setup.basic_rates); |
7824 | if (err) |
7825 | return err; |
7826 | } |
7827 | |
7828 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
7829 | } |
7830 | |
7831 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) |
7832 | { |
7833 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7834 | struct net_device *dev = info->user_ptr[1]; |
7835 | |
7836 | return cfg80211_leave_mesh(rdev, dev); |
7837 | } |
7838 | |
7839 | #ifdef CONFIG_PM |
7840 | static int nl80211_send_wowlan_patterns(struct sk_buff *msg, |
7841 | struct cfg80211_registered_device *rdev) |
7842 | { |
7843 | struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config; |
7844 | struct nlattr *nl_pats, *nl_pat; |
7845 | int i, pat_len; |
7846 | |
7847 | if (!wowlan->n_patterns) |
7848 | return 0; |
7849 | |
7850 | nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); |
7851 | if (!nl_pats) |
7852 | return -ENOBUFS; |
7853 | |
7854 | for (i = 0; i < wowlan->n_patterns; i++) { |
7855 | nl_pat = nla_nest_start(msg, i + 1); |
7856 | if (!nl_pat) |
7857 | return -ENOBUFS; |
7858 | pat_len = wowlan->patterns[i].pattern_len; |
7859 | if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8), |
7860 | wowlan->patterns[i].mask) || |
7861 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, |
7862 | wowlan->patterns[i].pattern) || |
7863 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, |
7864 | wowlan->patterns[i].pkt_offset)) |
7865 | return -ENOBUFS; |
7866 | nla_nest_end(msg, nl_pat); |
7867 | } |
7868 | nla_nest_end(msg, nl_pats); |
7869 | |
7870 | return 0; |
7871 | } |
7872 | |
7873 | static int nl80211_send_wowlan_tcp(struct sk_buff *msg, |
7874 | struct cfg80211_wowlan_tcp *tcp) |
7875 | { |
7876 | struct nlattr *nl_tcp; |
7877 | |
7878 | if (!tcp) |
7879 | return 0; |
7880 | |
7881 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); |
7882 | if (!nl_tcp) |
7883 | return -ENOBUFS; |
7884 | |
7885 | if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || |
7886 | nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || |
7887 | nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || |
7888 | nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || |
7889 | nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || |
7890 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, |
7891 | tcp->payload_len, tcp->payload) || |
7892 | nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, |
7893 | tcp->data_interval) || |
7894 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, |
7895 | tcp->wake_len, tcp->wake_data) || |
7896 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, |
7897 | DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) |
7898 | return -ENOBUFS; |
7899 | |
7900 | if (tcp->payload_seq.len && |
7901 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, |
7902 | sizeof(tcp->payload_seq), &tcp->payload_seq)) |
7903 | return -ENOBUFS; |
7904 | |
7905 | if (tcp->payload_tok.len && |
7906 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, |
7907 | sizeof(tcp->payload_tok) + tcp->tokens_size, |
7908 | &tcp->payload_tok)) |
7909 | return -ENOBUFS; |
7910 | |
7911 | nla_nest_end(msg, nl_tcp); |
7912 | |
7913 | return 0; |
7914 | } |
7915 | |
7916 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
7917 | { |
7918 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7919 | struct sk_buff *msg; |
7920 | void *hdr; |
7921 | u32 size = NLMSG_DEFAULT_SIZE; |
7922 | |
7923 | if (!rdev->wiphy.wowlan) |
7924 | return -EOPNOTSUPP; |
7925 | |
7926 | if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) { |
7927 | /* adjust size to have room for all the data */ |
7928 | size += rdev->wiphy.wowlan_config->tcp->tokens_size + |
7929 | rdev->wiphy.wowlan_config->tcp->payload_len + |
7930 | rdev->wiphy.wowlan_config->tcp->wake_len + |
7931 | rdev->wiphy.wowlan_config->tcp->wake_len / 8; |
7932 | } |
7933 | |
7934 | msg = nlmsg_new(size, GFP_KERNEL); |
7935 | if (!msg) |
7936 | return -ENOMEM; |
7937 | |
7938 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7939 | NL80211_CMD_GET_WOWLAN); |
7940 | if (!hdr) |
7941 | goto nla_put_failure; |
7942 | |
7943 | if (rdev->wiphy.wowlan_config) { |
7944 | struct nlattr *nl_wowlan; |
7945 | |
7946 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); |
7947 | if (!nl_wowlan) |
7948 | goto nla_put_failure; |
7949 | |
7950 | if ((rdev->wiphy.wowlan_config->any && |
7951 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
7952 | (rdev->wiphy.wowlan_config->disconnect && |
7953 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
7954 | (rdev->wiphy.wowlan_config->magic_pkt && |
7955 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
7956 | (rdev->wiphy.wowlan_config->gtk_rekey_failure && |
7957 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
7958 | (rdev->wiphy.wowlan_config->eap_identity_req && |
7959 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
7960 | (rdev->wiphy.wowlan_config->four_way_handshake && |
7961 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
7962 | (rdev->wiphy.wowlan_config->rfkill_release && |
7963 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
7964 | goto nla_put_failure; |
7965 | |
7966 | if (nl80211_send_wowlan_patterns(msg, rdev)) |
7967 | goto nla_put_failure; |
7968 | |
7969 | if (nl80211_send_wowlan_tcp(msg, |
7970 | rdev->wiphy.wowlan_config->tcp)) |
7971 | goto nla_put_failure; |
7972 | |
7973 | nla_nest_end(msg, nl_wowlan); |
7974 | } |
7975 | |
7976 | genlmsg_end(msg, hdr); |
7977 | return genlmsg_reply(msg, info); |
7978 | |
7979 | nla_put_failure: |
7980 | nlmsg_free(msg); |
7981 | return -ENOBUFS; |
7982 | } |
7983 | |
7984 | static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, |
7985 | struct nlattr *attr, |
7986 | struct cfg80211_wowlan *trig) |
7987 | { |
7988 | struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; |
7989 | struct cfg80211_wowlan_tcp *cfg; |
7990 | struct nl80211_wowlan_tcp_data_token *tok = NULL; |
7991 | struct nl80211_wowlan_tcp_data_seq *seq = NULL; |
7992 | u32 size; |
7993 | u32 data_size, wake_size, tokens_size = 0, wake_mask_size; |
7994 | int err, port; |
7995 | |
7996 | if (!rdev->wiphy.wowlan->tcp) |
7997 | return -EINVAL; |
7998 | |
7999 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, |
8000 | nla_data(attr), nla_len(attr), |
8001 | nl80211_wowlan_tcp_policy); |
8002 | if (err) |
8003 | return err; |
8004 | |
8005 | if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || |
8006 | !tb[NL80211_WOWLAN_TCP_DST_IPV4] || |
8007 | !tb[NL80211_WOWLAN_TCP_DST_MAC] || |
8008 | !tb[NL80211_WOWLAN_TCP_DST_PORT] || |
8009 | !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || |
8010 | !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || |
8011 | !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || |
8012 | !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) |
8013 | return -EINVAL; |
8014 | |
8015 | data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); |
8016 | if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max) |
8017 | return -EINVAL; |
8018 | |
8019 | if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > |
8020 | rdev->wiphy.wowlan->tcp->data_interval_max || |
8021 | nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0) |
8022 | return -EINVAL; |
8023 | |
8024 | wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); |
8025 | if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max) |
8026 | return -EINVAL; |
8027 | |
8028 | wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); |
8029 | if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) |
8030 | return -EINVAL; |
8031 | |
8032 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { |
8033 | u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); |
8034 | |
8035 | tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); |
8036 | tokens_size = tokln - sizeof(*tok); |
8037 | |
8038 | if (!tok->len || tokens_size % tok->len) |
8039 | return -EINVAL; |
8040 | if (!rdev->wiphy.wowlan->tcp->tok) |
8041 | return -EINVAL; |
8042 | if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len) |
8043 | return -EINVAL; |
8044 | if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len) |
8045 | return -EINVAL; |
8046 | if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize) |
8047 | return -EINVAL; |
8048 | if (tok->offset + tok->len > data_size) |
8049 | return -EINVAL; |
8050 | } |
8051 | |
8052 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { |
8053 | seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); |
8054 | if (!rdev->wiphy.wowlan->tcp->seq) |
8055 | return -EINVAL; |
8056 | if (seq->len == 0 || seq->len > 4) |
8057 | return -EINVAL; |
8058 | if (seq->len + seq->offset > data_size) |
8059 | return -EINVAL; |
8060 | } |
8061 | |
8062 | size = sizeof(*cfg); |
8063 | size += data_size; |
8064 | size += wake_size + wake_mask_size; |
8065 | size += tokens_size; |
8066 | |
8067 | cfg = kzalloc(size, GFP_KERNEL); |
8068 | if (!cfg) |
8069 | return -ENOMEM; |
8070 | cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); |
8071 | cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]); |
8072 | memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), |
8073 | ETH_ALEN); |
8074 | if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) |
8075 | port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); |
8076 | else |
8077 | port = 0; |
8078 | #ifdef CONFIG_INET |
8079 | /* allocate a socket and port for it and use it */ |
8080 | err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, |
8081 | IPPROTO_TCP, &cfg->sock, 1); |
8082 | if (err) { |
8083 | kfree(cfg); |
8084 | return err; |
8085 | } |
8086 | if (inet_csk_get_port(cfg->sock->sk, port)) { |
8087 | sock_release(cfg->sock); |
8088 | kfree(cfg); |
8089 | return -EADDRINUSE; |
8090 | } |
8091 | cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; |
8092 | #else |
8093 | if (!port) { |
8094 | kfree(cfg); |
8095 | return -EINVAL; |
8096 | } |
8097 | cfg->src_port = port; |
8098 | #endif |
8099 | |
8100 | cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); |
8101 | cfg->payload_len = data_size; |
8102 | cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; |
8103 | memcpy((void *)cfg->payload, |
8104 | nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), |
8105 | data_size); |
8106 | if (seq) |
8107 | cfg->payload_seq = *seq; |
8108 | cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); |
8109 | cfg->wake_len = wake_size; |
8110 | cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; |
8111 | memcpy((void *)cfg->wake_data, |
8112 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), |
8113 | wake_size); |
8114 | cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + |
8115 | data_size + wake_size; |
8116 | memcpy((void *)cfg->wake_mask, |
8117 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), |
8118 | wake_mask_size); |
8119 | if (tok) { |
8120 | cfg->tokens_size = tokens_size; |
8121 | memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size); |
8122 | } |
8123 | |
8124 | trig->tcp = cfg; |
8125 | |
8126 | return 0; |
8127 | } |
8128 | |
8129 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) |
8130 | { |
8131 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8132 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; |
8133 | struct cfg80211_wowlan new_triggers = {}; |
8134 | struct cfg80211_wowlan *ntrig; |
8135 | const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan; |
8136 | int err, i; |
8137 | bool prev_enabled = rdev->wiphy.wowlan_config; |
8138 | |
8139 | if (!wowlan) |
8140 | return -EOPNOTSUPP; |
8141 | |
8142 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
8143 | cfg80211_rdev_free_wowlan(rdev); |
8144 | rdev->wiphy.wowlan_config = NULL; |
8145 | goto set_wakeup; |
8146 | } |
8147 | |
8148 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, |
8149 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), |
8150 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), |
8151 | nl80211_wowlan_policy); |
8152 | if (err) |
8153 | return err; |
8154 | |
8155 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { |
8156 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) |
8157 | return -EINVAL; |
8158 | new_triggers.any = true; |
8159 | } |
8160 | |
8161 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { |
8162 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) |
8163 | return -EINVAL; |
8164 | new_triggers.disconnect = true; |
8165 | } |
8166 | |
8167 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { |
8168 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) |
8169 | return -EINVAL; |
8170 | new_triggers.magic_pkt = true; |
8171 | } |
8172 | |
8173 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
8174 | return -EINVAL; |
8175 | |
8176 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { |
8177 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) |
8178 | return -EINVAL; |
8179 | new_triggers.gtk_rekey_failure = true; |
8180 | } |
8181 | |
8182 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { |
8183 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) |
8184 | return -EINVAL; |
8185 | new_triggers.eap_identity_req = true; |
8186 | } |
8187 | |
8188 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { |
8189 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) |
8190 | return -EINVAL; |
8191 | new_triggers.four_way_handshake = true; |
8192 | } |
8193 | |
8194 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { |
8195 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) |
8196 | return -EINVAL; |
8197 | new_triggers.rfkill_release = true; |
8198 | } |
8199 | |
8200 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
8201 | struct nlattr *pat; |
8202 | int n_patterns = 0; |
8203 | int rem, pat_len, mask_len, pkt_offset; |
8204 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; |
8205 | |
8206 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], |
8207 | rem) |
8208 | n_patterns++; |
8209 | if (n_patterns > wowlan->n_patterns) |
8210 | return -EINVAL; |
8211 | |
8212 | new_triggers.patterns = kcalloc(n_patterns, |
8213 | sizeof(new_triggers.patterns[0]), |
8214 | GFP_KERNEL); |
8215 | if (!new_triggers.patterns) |
8216 | return -ENOMEM; |
8217 | |
8218 | new_triggers.n_patterns = n_patterns; |
8219 | i = 0; |
8220 | |
8221 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], |
8222 | rem) { |
8223 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), |
8224 | nla_len(pat), NULL); |
8225 | err = -EINVAL; |
8226 | if (!pat_tb[NL80211_PKTPAT_MASK] || |
8227 | !pat_tb[NL80211_PKTPAT_PATTERN]) |
8228 | goto error; |
8229 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); |
8230 | mask_len = DIV_ROUND_UP(pat_len, 8); |
8231 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) |
8232 | goto error; |
8233 | if (pat_len > wowlan->pattern_max_len || |
8234 | pat_len < wowlan->pattern_min_len) |
8235 | goto error; |
8236 | |
8237 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) |
8238 | pkt_offset = 0; |
8239 | else |
8240 | pkt_offset = nla_get_u32( |
8241 | pat_tb[NL80211_PKTPAT_OFFSET]); |
8242 | if (pkt_offset > wowlan->max_pkt_offset) |
8243 | goto error; |
8244 | new_triggers.patterns[i].pkt_offset = pkt_offset; |
8245 | |
8246 | new_triggers.patterns[i].mask = |
8247 | kmalloc(mask_len + pat_len, GFP_KERNEL); |
8248 | if (!new_triggers.patterns[i].mask) { |
8249 | err = -ENOMEM; |
8250 | goto error; |
8251 | } |
8252 | new_triggers.patterns[i].pattern = |
8253 | new_triggers.patterns[i].mask + mask_len; |
8254 | memcpy(new_triggers.patterns[i].mask, |
8255 | nla_data(pat_tb[NL80211_PKTPAT_MASK]), |
8256 | mask_len); |
8257 | new_triggers.patterns[i].pattern_len = pat_len; |
8258 | memcpy(new_triggers.patterns[i].pattern, |
8259 | nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
8260 | pat_len); |
8261 | i++; |
8262 | } |
8263 | } |
8264 | |
8265 | if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { |
8266 | err = nl80211_parse_wowlan_tcp( |
8267 | rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], |
8268 | &new_triggers); |
8269 | if (err) |
8270 | goto error; |
8271 | } |
8272 | |
8273 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
8274 | if (!ntrig) { |
8275 | err = -ENOMEM; |
8276 | goto error; |
8277 | } |
8278 | cfg80211_rdev_free_wowlan(rdev); |
8279 | rdev->wiphy.wowlan_config = ntrig; |
8280 | |
8281 | set_wakeup: |
8282 | if (rdev->ops->set_wakeup && |
8283 | prev_enabled != !!rdev->wiphy.wowlan_config) |
8284 | rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config); |
8285 | |
8286 | return 0; |
8287 | error: |
8288 | for (i = 0; i < new_triggers.n_patterns; i++) |
8289 | kfree(new_triggers.patterns[i].mask); |
8290 | kfree(new_triggers.patterns); |
8291 | if (new_triggers.tcp && new_triggers.tcp->sock) |
8292 | sock_release(new_triggers.tcp->sock); |
8293 | kfree(new_triggers.tcp); |
8294 | return err; |
8295 | } |
8296 | #endif |
8297 | |
8298 | static int nl80211_send_coalesce_rules(struct sk_buff *msg, |
8299 | struct cfg80211_registered_device *rdev) |
8300 | { |
8301 | struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules; |
8302 | int i, j, pat_len; |
8303 | struct cfg80211_coalesce_rules *rule; |
8304 | |
8305 | if (!rdev->coalesce->n_rules) |
8306 | return 0; |
8307 | |
8308 | nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE); |
8309 | if (!nl_rules) |
8310 | return -ENOBUFS; |
8311 | |
8312 | for (i = 0; i < rdev->coalesce->n_rules; i++) { |
8313 | nl_rule = nla_nest_start(msg, i + 1); |
8314 | if (!nl_rule) |
8315 | return -ENOBUFS; |
8316 | |
8317 | rule = &rdev->coalesce->rules[i]; |
8318 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY, |
8319 | rule->delay)) |
8320 | return -ENOBUFS; |
8321 | |
8322 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION, |
8323 | rule->condition)) |
8324 | return -ENOBUFS; |
8325 | |
8326 | nl_pats = nla_nest_start(msg, |
8327 | NL80211_ATTR_COALESCE_RULE_PKT_PATTERN); |
8328 | if (!nl_pats) |
8329 | return -ENOBUFS; |
8330 | |
8331 | for (j = 0; j < rule->n_patterns; j++) { |
8332 | nl_pat = nla_nest_start(msg, j + 1); |
8333 | if (!nl_pat) |
8334 | return -ENOBUFS; |
8335 | pat_len = rule->patterns[j].pattern_len; |
8336 | if (nla_put(msg, NL80211_PKTPAT_MASK, |
8337 | DIV_ROUND_UP(pat_len, 8), |
8338 | rule->patterns[j].mask) || |
8339 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, |
8340 | rule->patterns[j].pattern) || |
8341 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, |
8342 | rule->patterns[j].pkt_offset)) |
8343 | return -ENOBUFS; |
8344 | nla_nest_end(msg, nl_pat); |
8345 | } |
8346 | nla_nest_end(msg, nl_pats); |
8347 | nla_nest_end(msg, nl_rule); |
8348 | } |
8349 | nla_nest_end(msg, nl_rules); |
8350 | |
8351 | return 0; |
8352 | } |
8353 | |
8354 | static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info) |
8355 | { |
8356 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8357 | struct sk_buff *msg; |
8358 | void *hdr; |
8359 | |
8360 | if (!rdev->wiphy.coalesce) |
8361 | return -EOPNOTSUPP; |
8362 | |
8363 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
8364 | if (!msg) |
8365 | return -ENOMEM; |
8366 | |
8367 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
8368 | NL80211_CMD_GET_COALESCE); |
8369 | if (!hdr) |
8370 | goto nla_put_failure; |
8371 | |
8372 | if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev)) |
8373 | goto nla_put_failure; |
8374 | |
8375 | genlmsg_end(msg, hdr); |
8376 | return genlmsg_reply(msg, info); |
8377 | |
8378 | nla_put_failure: |
8379 | nlmsg_free(msg); |
8380 | return -ENOBUFS; |
8381 | } |
8382 | |
8383 | void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev) |
8384 | { |
8385 | struct cfg80211_coalesce *coalesce = rdev->coalesce; |
8386 | int i, j; |
8387 | struct cfg80211_coalesce_rules *rule; |
8388 | |
8389 | if (!coalesce) |
8390 | return; |
8391 | |
8392 | for (i = 0; i < coalesce->n_rules; i++) { |
8393 | rule = &coalesce->rules[i]; |
8394 | for (j = 0; j < rule->n_patterns; j++) |
8395 | kfree(rule->patterns[j].mask); |
8396 | kfree(rule->patterns); |
8397 | } |
8398 | kfree(coalesce->rules); |
8399 | kfree(coalesce); |
8400 | rdev->coalesce = NULL; |
8401 | } |
8402 | |
8403 | static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, |
8404 | struct nlattr *rule, |
8405 | struct cfg80211_coalesce_rules *new_rule) |
8406 | { |
8407 | int err, i; |
8408 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; |
8409 | struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat; |
8410 | int rem, pat_len, mask_len, pkt_offset, n_patterns = 0; |
8411 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; |
8412 | |
8413 | err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule), |
8414 | nla_len(rule), nl80211_coalesce_policy); |
8415 | if (err) |
8416 | return err; |
8417 | |
8418 | if (tb[NL80211_ATTR_COALESCE_RULE_DELAY]) |
8419 | new_rule->delay = |
8420 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]); |
8421 | if (new_rule->delay > coalesce->max_delay) |
8422 | return -EINVAL; |
8423 | |
8424 | if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION]) |
8425 | new_rule->condition = |
8426 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]); |
8427 | if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH && |
8428 | new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH) |
8429 | return -EINVAL; |
8430 | |
8431 | if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN]) |
8432 | return -EINVAL; |
8433 | |
8434 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], |
8435 | rem) |
8436 | n_patterns++; |
8437 | if (n_patterns > coalesce->n_patterns) |
8438 | return -EINVAL; |
8439 | |
8440 | new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]), |
8441 | GFP_KERNEL); |
8442 | if (!new_rule->patterns) |
8443 | return -ENOMEM; |
8444 | |
8445 | new_rule->n_patterns = n_patterns; |
8446 | i = 0; |
8447 | |
8448 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], |
8449 | rem) { |
8450 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), |
8451 | nla_len(pat), NULL); |
8452 | if (!pat_tb[NL80211_PKTPAT_MASK] || |
8453 | !pat_tb[NL80211_PKTPAT_PATTERN]) |
8454 | return -EINVAL; |
8455 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); |
8456 | mask_len = DIV_ROUND_UP(pat_len, 8); |
8457 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) |
8458 | return -EINVAL; |
8459 | if (pat_len > coalesce->pattern_max_len || |
8460 | pat_len < coalesce->pattern_min_len) |
8461 | return -EINVAL; |
8462 | |
8463 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) |
8464 | pkt_offset = 0; |
8465 | else |
8466 | pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]); |
8467 | if (pkt_offset > coalesce->max_pkt_offset) |
8468 | return -EINVAL; |
8469 | new_rule->patterns[i].pkt_offset = pkt_offset; |
8470 | |
8471 | new_rule->patterns[i].mask = |
8472 | kmalloc(mask_len + pat_len, GFP_KERNEL); |
8473 | if (!new_rule->patterns[i].mask) |
8474 | return -ENOMEM; |
8475 | new_rule->patterns[i].pattern = |
8476 | new_rule->patterns[i].mask + mask_len; |
8477 | memcpy(new_rule->patterns[i].mask, |
8478 | nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len); |
8479 | new_rule->patterns[i].pattern_len = pat_len; |
8480 | memcpy(new_rule->patterns[i].pattern, |
8481 | nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len); |
8482 | i++; |
8483 | } |
8484 | |
8485 | return 0; |
8486 | } |
8487 | |
8488 | static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) |
8489 | { |
8490 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8491 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; |
8492 | struct cfg80211_coalesce new_coalesce = {}; |
8493 | struct cfg80211_coalesce *n_coalesce; |
8494 | int err, rem_rule, n_rules = 0, i, j; |
8495 | struct nlattr *rule; |
8496 | struct cfg80211_coalesce_rules *tmp_rule; |
8497 | |
8498 | if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce) |
8499 | return -EOPNOTSUPP; |
8500 | |
8501 | if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) { |
8502 | cfg80211_rdev_free_coalesce(rdev); |
8503 | rdev->ops->set_coalesce(&rdev->wiphy, NULL); |
8504 | return 0; |
8505 | } |
8506 | |
8507 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], |
8508 | rem_rule) |
8509 | n_rules++; |
8510 | if (n_rules > coalesce->n_rules) |
8511 | return -EINVAL; |
8512 | |
8513 | new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]), |
8514 | GFP_KERNEL); |
8515 | if (!new_coalesce.rules) |
8516 | return -ENOMEM; |
8517 | |
8518 | new_coalesce.n_rules = n_rules; |
8519 | i = 0; |
8520 | |
8521 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], |
8522 | rem_rule) { |
8523 | err = nl80211_parse_coalesce_rule(rdev, rule, |
8524 | &new_coalesce.rules[i]); |
8525 | if (err) |
8526 | goto error; |
8527 | |
8528 | i++; |
8529 | } |
8530 | |
8531 | err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce); |
8532 | if (err) |
8533 | goto error; |
8534 | |
8535 | n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL); |
8536 | if (!n_coalesce) { |
8537 | err = -ENOMEM; |
8538 | goto error; |
8539 | } |
8540 | cfg80211_rdev_free_coalesce(rdev); |
8541 | rdev->coalesce = n_coalesce; |
8542 | |
8543 | return 0; |
8544 | error: |
8545 | for (i = 0; i < new_coalesce.n_rules; i++) { |
8546 | tmp_rule = &new_coalesce.rules[i]; |
8547 | for (j = 0; j < tmp_rule->n_patterns; j++) |
8548 | kfree(tmp_rule->patterns[j].mask); |
8549 | kfree(tmp_rule->patterns); |
8550 | } |
8551 | kfree(new_coalesce.rules); |
8552 | |
8553 | return err; |
8554 | } |
8555 | |
8556 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
8557 | { |
8558 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8559 | struct net_device *dev = info->user_ptr[1]; |
8560 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
8561 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; |
8562 | struct cfg80211_gtk_rekey_data rekey_data; |
8563 | int err; |
8564 | |
8565 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) |
8566 | return -EINVAL; |
8567 | |
8568 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, |
8569 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), |
8570 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), |
8571 | nl80211_rekey_policy); |
8572 | if (err) |
8573 | return err; |
8574 | |
8575 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) |
8576 | return -ERANGE; |
8577 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) |
8578 | return -ERANGE; |
8579 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) |
8580 | return -ERANGE; |
8581 | |
8582 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), |
8583 | NL80211_KEK_LEN); |
8584 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), |
8585 | NL80211_KCK_LEN); |
8586 | memcpy(rekey_data.replay_ctr, |
8587 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), |
8588 | NL80211_REPLAY_CTR_LEN); |
8589 | |
8590 | wdev_lock(wdev); |
8591 | if (!wdev->current_bss) { |
8592 | err = -ENOTCONN; |
8593 | goto out; |
8594 | } |
8595 | |
8596 | if (!rdev->ops->set_rekey_data) { |
8597 | err = -EOPNOTSUPP; |
8598 | goto out; |
8599 | } |
8600 | |
8601 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); |
8602 | out: |
8603 | wdev_unlock(wdev); |
8604 | return err; |
8605 | } |
8606 | |
8607 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
8608 | struct genl_info *info) |
8609 | { |
8610 | struct net_device *dev = info->user_ptr[1]; |
8611 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
8612 | |
8613 | if (wdev->iftype != NL80211_IFTYPE_AP && |
8614 | wdev->iftype != NL80211_IFTYPE_P2P_GO) |
8615 | return -EINVAL; |
8616 | |
8617 | if (wdev->ap_unexpected_nlportid) |
8618 | return -EBUSY; |
8619 | |
8620 | wdev->ap_unexpected_nlportid = info->snd_portid; |
8621 | return 0; |
8622 | } |
8623 | |
8624 | static int nl80211_probe_client(struct sk_buff *skb, |
8625 | struct genl_info *info) |
8626 | { |
8627 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8628 | struct net_device *dev = info->user_ptr[1]; |
8629 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
8630 | struct sk_buff *msg; |
8631 | void *hdr; |
8632 | const u8 *addr; |
8633 | u64 cookie; |
8634 | int err; |
8635 | |
8636 | if (wdev->iftype != NL80211_IFTYPE_AP && |
8637 | wdev->iftype != NL80211_IFTYPE_P2P_GO) |
8638 | return -EOPNOTSUPP; |
8639 | |
8640 | if (!info->attrs[NL80211_ATTR_MAC]) |
8641 | return -EINVAL; |
8642 | |
8643 | if (!rdev->ops->probe_client) |
8644 | return -EOPNOTSUPP; |
8645 | |
8646 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
8647 | if (!msg) |
8648 | return -ENOMEM; |
8649 | |
8650 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
8651 | NL80211_CMD_PROBE_CLIENT); |
8652 | if (!hdr) { |
8653 | err = -ENOBUFS; |
8654 | goto free_msg; |
8655 | } |
8656 | |
8657 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
8658 | |
8659 | err = rdev_probe_client(rdev, dev, addr, &cookie); |
8660 | if (err) |
8661 | goto free_msg; |
8662 | |
8663 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
8664 | goto nla_put_failure; |
8665 | |
8666 | genlmsg_end(msg, hdr); |
8667 | |
8668 | return genlmsg_reply(msg, info); |
8669 | |
8670 | nla_put_failure: |
8671 | err = -ENOBUFS; |
8672 | free_msg: |
8673 | nlmsg_free(msg); |
8674 | return err; |
8675 | } |
8676 | |
8677 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
8678 | { |
8679 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8680 | struct cfg80211_beacon_registration *reg, *nreg; |
8681 | int rv; |
8682 | |
8683 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) |
8684 | return -EOPNOTSUPP; |
8685 | |
8686 | nreg = kzalloc(sizeof(*nreg), GFP_KERNEL); |
8687 | if (!nreg) |
8688 | return -ENOMEM; |
8689 | |
8690 | /* First, check if already registered. */ |
8691 | spin_lock_bh(&rdev->beacon_registrations_lock); |
8692 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { |
8693 | if (reg->nlportid == info->snd_portid) { |
8694 | rv = -EALREADY; |
8695 | goto out_err; |
8696 | } |
8697 | } |
8698 | /* Add it to the list */ |
8699 | nreg->nlportid = info->snd_portid; |
8700 | list_add(&nreg->list, &rdev->beacon_registrations); |
8701 | |
8702 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
8703 | |
8704 | return 0; |
8705 | out_err: |
8706 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
8707 | kfree(nreg); |
8708 | return rv; |
8709 | } |
8710 | |
8711 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
8712 | { |
8713 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8714 | struct wireless_dev *wdev = info->user_ptr[1]; |
8715 | int err; |
8716 | |
8717 | if (!rdev->ops->start_p2p_device) |
8718 | return -EOPNOTSUPP; |
8719 | |
8720 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) |
8721 | return -EOPNOTSUPP; |
8722 | |
8723 | if (wdev->p2p_started) |
8724 | return 0; |
8725 | |
8726 | err = cfg80211_can_add_interface(rdev, wdev->iftype); |
8727 | if (err) |
8728 | return err; |
8729 | |
8730 | err = rdev_start_p2p_device(rdev, wdev); |
8731 | if (err) |
8732 | return err; |
8733 | |
8734 | wdev->p2p_started = true; |
8735 | rdev->opencount++; |
8736 | |
8737 | return 0; |
8738 | } |
8739 | |
8740 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) |
8741 | { |
8742 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8743 | struct wireless_dev *wdev = info->user_ptr[1]; |
8744 | |
8745 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) |
8746 | return -EOPNOTSUPP; |
8747 | |
8748 | if (!rdev->ops->stop_p2p_device) |
8749 | return -EOPNOTSUPP; |
8750 | |
8751 | cfg80211_stop_p2p_device(rdev, wdev); |
8752 | |
8753 | return 0; |
8754 | } |
8755 | |
8756 | static int nl80211_get_protocol_features(struct sk_buff *skb, |
8757 | struct genl_info *info) |
8758 | { |
8759 | void *hdr; |
8760 | struct sk_buff *msg; |
8761 | |
8762 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
8763 | if (!msg) |
8764 | return -ENOMEM; |
8765 | |
8766 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
8767 | NL80211_CMD_GET_PROTOCOL_FEATURES); |
8768 | if (!hdr) |
8769 | goto nla_put_failure; |
8770 | |
8771 | if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES, |
8772 | NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)) |
8773 | goto nla_put_failure; |
8774 | |
8775 | genlmsg_end(msg, hdr); |
8776 | return genlmsg_reply(msg, info); |
8777 | |
8778 | nla_put_failure: |
8779 | kfree_skb(msg); |
8780 | return -ENOBUFS; |
8781 | } |
8782 | |
8783 | static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) |
8784 | { |
8785 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8786 | struct cfg80211_update_ft_ies_params ft_params; |
8787 | struct net_device *dev = info->user_ptr[1]; |
8788 | |
8789 | if (!rdev->ops->update_ft_ies) |
8790 | return -EOPNOTSUPP; |
8791 | |
8792 | if (!info->attrs[NL80211_ATTR_MDID] || |
8793 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
8794 | return -EINVAL; |
8795 | |
8796 | memset(&ft_params, 0, sizeof(ft_params)); |
8797 | ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]); |
8798 | ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
8799 | ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); |
8800 | |
8801 | return rdev_update_ft_ies(rdev, dev, &ft_params); |
8802 | } |
8803 | |
8804 | static int nl80211_crit_protocol_start(struct sk_buff *skb, |
8805 | struct genl_info *info) |
8806 | { |
8807 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8808 | struct wireless_dev *wdev = info->user_ptr[1]; |
8809 | enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC; |
8810 | u16 duration; |
8811 | int ret; |
8812 | |
8813 | if (!rdev->ops->crit_proto_start) |
8814 | return -EOPNOTSUPP; |
8815 | |
8816 | if (WARN_ON(!rdev->ops->crit_proto_stop)) |
8817 | return -EINVAL; |
8818 | |
8819 | if (rdev->crit_proto_nlportid) |
8820 | return -EBUSY; |
8821 | |
8822 | /* determine protocol if provided */ |
8823 | if (info->attrs[NL80211_ATTR_CRIT_PROT_ID]) |
8824 | proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]); |
8825 | |
8826 | if (proto >= NUM_NL80211_CRIT_PROTO) |
8827 | return -EINVAL; |
8828 | |
8829 | /* timeout must be provided */ |
8830 | if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]) |
8831 | return -EINVAL; |
8832 | |
8833 | duration = |
8834 | nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]); |
8835 | |
8836 | if (duration > NL80211_CRIT_PROTO_MAX_DURATION) |
8837 | return -ERANGE; |
8838 | |
8839 | ret = rdev_crit_proto_start(rdev, wdev, proto, duration); |
8840 | if (!ret) |
8841 | rdev->crit_proto_nlportid = info->snd_portid; |
8842 | |
8843 | return ret; |
8844 | } |
8845 | |
8846 | static int nl80211_crit_protocol_stop(struct sk_buff *skb, |
8847 | struct genl_info *info) |
8848 | { |
8849 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8850 | struct wireless_dev *wdev = info->user_ptr[1]; |
8851 | |
8852 | if (!rdev->ops->crit_proto_stop) |
8853 | return -EOPNOTSUPP; |
8854 | |
8855 | if (rdev->crit_proto_nlportid) { |
8856 | rdev->crit_proto_nlportid = 0; |
8857 | rdev_crit_proto_stop(rdev, wdev); |
8858 | } |
8859 | return 0; |
8860 | } |
8861 | |
8862 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
8863 | #define NL80211_FLAG_NEED_NETDEV 0x02 |
8864 | #define NL80211_FLAG_NEED_RTNL 0x04 |
8865 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
8866 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ |
8867 | NL80211_FLAG_CHECK_NETDEV_UP) |
8868 | #define NL80211_FLAG_NEED_WDEV 0x10 |
8869 | /* If a netdev is associated, it must be UP, P2P must be started */ |
8870 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
8871 | NL80211_FLAG_CHECK_NETDEV_UP) |
8872 | |
8873 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
8874 | struct genl_info *info) |
8875 | { |
8876 | struct cfg80211_registered_device *rdev; |
8877 | struct wireless_dev *wdev; |
8878 | struct net_device *dev; |
8879 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; |
8880 | |
8881 | if (rtnl) |
8882 | rtnl_lock(); |
8883 | |
8884 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { |
8885 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
8886 | if (IS_ERR(rdev)) { |
8887 | if (rtnl) |
8888 | rtnl_unlock(); |
8889 | return PTR_ERR(rdev); |
8890 | } |
8891 | info->user_ptr[0] = rdev; |
8892 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || |
8893 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { |
8894 | ASSERT_RTNL(); |
8895 | |
8896 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), |
8897 | info->attrs); |
8898 | if (IS_ERR(wdev)) { |
8899 | if (rtnl) |
8900 | rtnl_unlock(); |
8901 | return PTR_ERR(wdev); |
8902 | } |
8903 | |
8904 | dev = wdev->netdev; |
8905 | rdev = wiphy_to_dev(wdev->wiphy); |
8906 | |
8907 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { |
8908 | if (!dev) { |
8909 | if (rtnl) |
8910 | rtnl_unlock(); |
8911 | return -EINVAL; |
8912 | } |
8913 | |
8914 | info->user_ptr[1] = dev; |
8915 | } else { |
8916 | info->user_ptr[1] = wdev; |
8917 | } |
8918 | |
8919 | if (dev) { |
8920 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
8921 | !netif_running(dev)) { |
8922 | if (rtnl) |
8923 | rtnl_unlock(); |
8924 | return -ENETDOWN; |
8925 | } |
8926 | |
8927 | dev_hold(dev); |
8928 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { |
8929 | if (!wdev->p2p_started) { |
8930 | if (rtnl) |
8931 | rtnl_unlock(); |
8932 | return -ENETDOWN; |
8933 | } |
8934 | } |
8935 | |
8936 | info->user_ptr[0] = rdev; |
8937 | } |
8938 | |
8939 | return 0; |
8940 | } |
8941 | |
8942 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
8943 | struct genl_info *info) |
8944 | { |
8945 | if (info->user_ptr[1]) { |
8946 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { |
8947 | struct wireless_dev *wdev = info->user_ptr[1]; |
8948 | |
8949 | if (wdev->netdev) |
8950 | dev_put(wdev->netdev); |
8951 | } else { |
8952 | dev_put(info->user_ptr[1]); |
8953 | } |
8954 | } |
8955 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) |
8956 | rtnl_unlock(); |
8957 | } |
8958 | |
8959 | static const struct genl_ops nl80211_ops[] = { |
8960 | { |
8961 | .cmd = NL80211_CMD_GET_WIPHY, |
8962 | .doit = nl80211_get_wiphy, |
8963 | .dumpit = nl80211_dump_wiphy, |
8964 | .done = nl80211_dump_wiphy_done, |
8965 | .policy = nl80211_policy, |
8966 | /* can be retrieved by unprivileged users */ |
8967 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
8968 | NL80211_FLAG_NEED_RTNL, |
8969 | }, |
8970 | { |
8971 | .cmd = NL80211_CMD_SET_WIPHY, |
8972 | .doit = nl80211_set_wiphy, |
8973 | .policy = nl80211_policy, |
8974 | .flags = GENL_ADMIN_PERM, |
8975 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
8976 | }, |
8977 | { |
8978 | .cmd = NL80211_CMD_GET_INTERFACE, |
8979 | .doit = nl80211_get_interface, |
8980 | .dumpit = nl80211_dump_interface, |
8981 | .policy = nl80211_policy, |
8982 | /* can be retrieved by unprivileged users */ |
8983 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
8984 | NL80211_FLAG_NEED_RTNL, |
8985 | }, |
8986 | { |
8987 | .cmd = NL80211_CMD_SET_INTERFACE, |
8988 | .doit = nl80211_set_interface, |
8989 | .policy = nl80211_policy, |
8990 | .flags = GENL_ADMIN_PERM, |
8991 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
8992 | NL80211_FLAG_NEED_RTNL, |
8993 | }, |
8994 | { |
8995 | .cmd = NL80211_CMD_NEW_INTERFACE, |
8996 | .doit = nl80211_new_interface, |
8997 | .policy = nl80211_policy, |
8998 | .flags = GENL_ADMIN_PERM, |
8999 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9000 | NL80211_FLAG_NEED_RTNL, |
9001 | }, |
9002 | { |
9003 | .cmd = NL80211_CMD_DEL_INTERFACE, |
9004 | .doit = nl80211_del_interface, |
9005 | .policy = nl80211_policy, |
9006 | .flags = GENL_ADMIN_PERM, |
9007 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
9008 | NL80211_FLAG_NEED_RTNL, |
9009 | }, |
9010 | { |
9011 | .cmd = NL80211_CMD_GET_KEY, |
9012 | .doit = nl80211_get_key, |
9013 | .policy = nl80211_policy, |
9014 | .flags = GENL_ADMIN_PERM, |
9015 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9016 | NL80211_FLAG_NEED_RTNL, |
9017 | }, |
9018 | { |
9019 | .cmd = NL80211_CMD_SET_KEY, |
9020 | .doit = nl80211_set_key, |
9021 | .policy = nl80211_policy, |
9022 | .flags = GENL_ADMIN_PERM, |
9023 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9024 | NL80211_FLAG_NEED_RTNL, |
9025 | }, |
9026 | { |
9027 | .cmd = NL80211_CMD_NEW_KEY, |
9028 | .doit = nl80211_new_key, |
9029 | .policy = nl80211_policy, |
9030 | .flags = GENL_ADMIN_PERM, |
9031 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9032 | NL80211_FLAG_NEED_RTNL, |
9033 | }, |
9034 | { |
9035 | .cmd = NL80211_CMD_DEL_KEY, |
9036 | .doit = nl80211_del_key, |
9037 | .policy = nl80211_policy, |
9038 | .flags = GENL_ADMIN_PERM, |
9039 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9040 | NL80211_FLAG_NEED_RTNL, |
9041 | }, |
9042 | { |
9043 | .cmd = NL80211_CMD_SET_BEACON, |
9044 | .policy = nl80211_policy, |
9045 | .flags = GENL_ADMIN_PERM, |
9046 | .doit = nl80211_set_beacon, |
9047 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9048 | NL80211_FLAG_NEED_RTNL, |
9049 | }, |
9050 | { |
9051 | .cmd = NL80211_CMD_START_AP, |
9052 | .policy = nl80211_policy, |
9053 | .flags = GENL_ADMIN_PERM, |
9054 | .doit = nl80211_start_ap, |
9055 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9056 | NL80211_FLAG_NEED_RTNL, |
9057 | }, |
9058 | { |
9059 | .cmd = NL80211_CMD_STOP_AP, |
9060 | .policy = nl80211_policy, |
9061 | .flags = GENL_ADMIN_PERM, |
9062 | .doit = nl80211_stop_ap, |
9063 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9064 | NL80211_FLAG_NEED_RTNL, |
9065 | }, |
9066 | { |
9067 | .cmd = NL80211_CMD_GET_STATION, |
9068 | .doit = nl80211_get_station, |
9069 | .dumpit = nl80211_dump_station, |
9070 | .policy = nl80211_policy, |
9071 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9072 | NL80211_FLAG_NEED_RTNL, |
9073 | }, |
9074 | { |
9075 | .cmd = NL80211_CMD_SET_STATION, |
9076 | .doit = nl80211_set_station, |
9077 | .policy = nl80211_policy, |
9078 | .flags = GENL_ADMIN_PERM, |
9079 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9080 | NL80211_FLAG_NEED_RTNL, |
9081 | }, |
9082 | { |
9083 | .cmd = NL80211_CMD_NEW_STATION, |
9084 | .doit = nl80211_new_station, |
9085 | .policy = nl80211_policy, |
9086 | .flags = GENL_ADMIN_PERM, |
9087 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9088 | NL80211_FLAG_NEED_RTNL, |
9089 | }, |
9090 | { |
9091 | .cmd = NL80211_CMD_DEL_STATION, |
9092 | .doit = nl80211_del_station, |
9093 | .policy = nl80211_policy, |
9094 | .flags = GENL_ADMIN_PERM, |
9095 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9096 | NL80211_FLAG_NEED_RTNL, |
9097 | }, |
9098 | { |
9099 | .cmd = NL80211_CMD_GET_MPATH, |
9100 | .doit = nl80211_get_mpath, |
9101 | .dumpit = nl80211_dump_mpath, |
9102 | .policy = nl80211_policy, |
9103 | .flags = GENL_ADMIN_PERM, |
9104 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9105 | NL80211_FLAG_NEED_RTNL, |
9106 | }, |
9107 | { |
9108 | .cmd = NL80211_CMD_SET_MPATH, |
9109 | .doit = nl80211_set_mpath, |
9110 | .policy = nl80211_policy, |
9111 | .flags = GENL_ADMIN_PERM, |
9112 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9113 | NL80211_FLAG_NEED_RTNL, |
9114 | }, |
9115 | { |
9116 | .cmd = NL80211_CMD_NEW_MPATH, |
9117 | .doit = nl80211_new_mpath, |
9118 | .policy = nl80211_policy, |
9119 | .flags = GENL_ADMIN_PERM, |
9120 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9121 | NL80211_FLAG_NEED_RTNL, |
9122 | }, |
9123 | { |
9124 | .cmd = NL80211_CMD_DEL_MPATH, |
9125 | .doit = nl80211_del_mpath, |
9126 | .policy = nl80211_policy, |
9127 | .flags = GENL_ADMIN_PERM, |
9128 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9129 | NL80211_FLAG_NEED_RTNL, |
9130 | }, |
9131 | { |
9132 | .cmd = NL80211_CMD_SET_BSS, |
9133 | .doit = nl80211_set_bss, |
9134 | .policy = nl80211_policy, |
9135 | .flags = GENL_ADMIN_PERM, |
9136 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9137 | NL80211_FLAG_NEED_RTNL, |
9138 | }, |
9139 | { |
9140 | .cmd = NL80211_CMD_GET_REG, |
9141 | .doit = nl80211_get_reg, |
9142 | .policy = nl80211_policy, |
9143 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
9144 | /* can be retrieved by unprivileged users */ |
9145 | }, |
9146 | { |
9147 | .cmd = NL80211_CMD_SET_REG, |
9148 | .doit = nl80211_set_reg, |
9149 | .policy = nl80211_policy, |
9150 | .flags = GENL_ADMIN_PERM, |
9151 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
9152 | }, |
9153 | { |
9154 | .cmd = NL80211_CMD_REQ_SET_REG, |
9155 | .doit = nl80211_req_set_reg, |
9156 | .policy = nl80211_policy, |
9157 | .flags = GENL_ADMIN_PERM, |
9158 | }, |
9159 | { |
9160 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
9161 | .doit = nl80211_get_mesh_config, |
9162 | .policy = nl80211_policy, |
9163 | /* can be retrieved by unprivileged users */ |
9164 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9165 | NL80211_FLAG_NEED_RTNL, |
9166 | }, |
9167 | { |
9168 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
9169 | .doit = nl80211_update_mesh_config, |
9170 | .policy = nl80211_policy, |
9171 | .flags = GENL_ADMIN_PERM, |
9172 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9173 | NL80211_FLAG_NEED_RTNL, |
9174 | }, |
9175 | { |
9176 | .cmd = NL80211_CMD_TRIGGER_SCAN, |
9177 | .doit = nl80211_trigger_scan, |
9178 | .policy = nl80211_policy, |
9179 | .flags = GENL_ADMIN_PERM, |
9180 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9181 | NL80211_FLAG_NEED_RTNL, |
9182 | }, |
9183 | { |
9184 | .cmd = NL80211_CMD_GET_SCAN, |
9185 | .policy = nl80211_policy, |
9186 | .dumpit = nl80211_dump_scan, |
9187 | }, |
9188 | { |
9189 | .cmd = NL80211_CMD_START_SCHED_SCAN, |
9190 | .doit = nl80211_start_sched_scan, |
9191 | .policy = nl80211_policy, |
9192 | .flags = GENL_ADMIN_PERM, |
9193 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9194 | NL80211_FLAG_NEED_RTNL, |
9195 | }, |
9196 | { |
9197 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, |
9198 | .doit = nl80211_stop_sched_scan, |
9199 | .policy = nl80211_policy, |
9200 | .flags = GENL_ADMIN_PERM, |
9201 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9202 | NL80211_FLAG_NEED_RTNL, |
9203 | }, |
9204 | { |
9205 | .cmd = NL80211_CMD_AUTHENTICATE, |
9206 | .doit = nl80211_authenticate, |
9207 | .policy = nl80211_policy, |
9208 | .flags = GENL_ADMIN_PERM, |
9209 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9210 | NL80211_FLAG_NEED_RTNL, |
9211 | }, |
9212 | { |
9213 | .cmd = NL80211_CMD_ASSOCIATE, |
9214 | .doit = nl80211_associate, |
9215 | .policy = nl80211_policy, |
9216 | .flags = GENL_ADMIN_PERM, |
9217 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9218 | NL80211_FLAG_NEED_RTNL, |
9219 | }, |
9220 | { |
9221 | .cmd = NL80211_CMD_DEAUTHENTICATE, |
9222 | .doit = nl80211_deauthenticate, |
9223 | .policy = nl80211_policy, |
9224 | .flags = GENL_ADMIN_PERM, |
9225 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9226 | NL80211_FLAG_NEED_RTNL, |
9227 | }, |
9228 | { |
9229 | .cmd = NL80211_CMD_DISASSOCIATE, |
9230 | .doit = nl80211_disassociate, |
9231 | .policy = nl80211_policy, |
9232 | .flags = GENL_ADMIN_PERM, |
9233 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9234 | NL80211_FLAG_NEED_RTNL, |
9235 | }, |
9236 | { |
9237 | .cmd = NL80211_CMD_JOIN_IBSS, |
9238 | .doit = nl80211_join_ibss, |
9239 | .policy = nl80211_policy, |
9240 | .flags = GENL_ADMIN_PERM, |
9241 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9242 | NL80211_FLAG_NEED_RTNL, |
9243 | }, |
9244 | { |
9245 | .cmd = NL80211_CMD_LEAVE_IBSS, |
9246 | .doit = nl80211_leave_ibss, |
9247 | .policy = nl80211_policy, |
9248 | .flags = GENL_ADMIN_PERM, |
9249 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9250 | NL80211_FLAG_NEED_RTNL, |
9251 | }, |
9252 | #ifdef CONFIG_NL80211_TESTMODE |
9253 | { |
9254 | .cmd = NL80211_CMD_TESTMODE, |
9255 | .doit = nl80211_testmode_do, |
9256 | .dumpit = nl80211_testmode_dump, |
9257 | .policy = nl80211_policy, |
9258 | .flags = GENL_ADMIN_PERM, |
9259 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9260 | NL80211_FLAG_NEED_RTNL, |
9261 | }, |
9262 | #endif |
9263 | { |
9264 | .cmd = NL80211_CMD_CONNECT, |
9265 | .doit = nl80211_connect, |
9266 | .policy = nl80211_policy, |
9267 | .flags = GENL_ADMIN_PERM, |
9268 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9269 | NL80211_FLAG_NEED_RTNL, |
9270 | }, |
9271 | { |
9272 | .cmd = NL80211_CMD_DISCONNECT, |
9273 | .doit = nl80211_disconnect, |
9274 | .policy = nl80211_policy, |
9275 | .flags = GENL_ADMIN_PERM, |
9276 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9277 | NL80211_FLAG_NEED_RTNL, |
9278 | }, |
9279 | { |
9280 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, |
9281 | .doit = nl80211_wiphy_netns, |
9282 | .policy = nl80211_policy, |
9283 | .flags = GENL_ADMIN_PERM, |
9284 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9285 | NL80211_FLAG_NEED_RTNL, |
9286 | }, |
9287 | { |
9288 | .cmd = NL80211_CMD_GET_SURVEY, |
9289 | .policy = nl80211_policy, |
9290 | .dumpit = nl80211_dump_survey, |
9291 | }, |
9292 | { |
9293 | .cmd = NL80211_CMD_SET_PMKSA, |
9294 | .doit = nl80211_setdel_pmksa, |
9295 | .policy = nl80211_policy, |
9296 | .flags = GENL_ADMIN_PERM, |
9297 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9298 | NL80211_FLAG_NEED_RTNL, |
9299 | }, |
9300 | { |
9301 | .cmd = NL80211_CMD_DEL_PMKSA, |
9302 | .doit = nl80211_setdel_pmksa, |
9303 | .policy = nl80211_policy, |
9304 | .flags = GENL_ADMIN_PERM, |
9305 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9306 | NL80211_FLAG_NEED_RTNL, |
9307 | }, |
9308 | { |
9309 | .cmd = NL80211_CMD_FLUSH_PMKSA, |
9310 | .doit = nl80211_flush_pmksa, |
9311 | .policy = nl80211_policy, |
9312 | .flags = GENL_ADMIN_PERM, |
9313 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9314 | NL80211_FLAG_NEED_RTNL, |
9315 | }, |
9316 | { |
9317 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, |
9318 | .doit = nl80211_remain_on_channel, |
9319 | .policy = nl80211_policy, |
9320 | .flags = GENL_ADMIN_PERM, |
9321 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9322 | NL80211_FLAG_NEED_RTNL, |
9323 | }, |
9324 | { |
9325 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, |
9326 | .doit = nl80211_cancel_remain_on_channel, |
9327 | .policy = nl80211_policy, |
9328 | .flags = GENL_ADMIN_PERM, |
9329 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9330 | NL80211_FLAG_NEED_RTNL, |
9331 | }, |
9332 | { |
9333 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, |
9334 | .doit = nl80211_set_tx_bitrate_mask, |
9335 | .policy = nl80211_policy, |
9336 | .flags = GENL_ADMIN_PERM, |
9337 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9338 | NL80211_FLAG_NEED_RTNL, |
9339 | }, |
9340 | { |
9341 | .cmd = NL80211_CMD_REGISTER_FRAME, |
9342 | .doit = nl80211_register_mgmt, |
9343 | .policy = nl80211_policy, |
9344 | .flags = GENL_ADMIN_PERM, |
9345 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
9346 | NL80211_FLAG_NEED_RTNL, |
9347 | }, |
9348 | { |
9349 | .cmd = NL80211_CMD_FRAME, |
9350 | .doit = nl80211_tx_mgmt, |
9351 | .policy = nl80211_policy, |
9352 | .flags = GENL_ADMIN_PERM, |
9353 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9354 | NL80211_FLAG_NEED_RTNL, |
9355 | }, |
9356 | { |
9357 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, |
9358 | .doit = nl80211_tx_mgmt_cancel_wait, |
9359 | .policy = nl80211_policy, |
9360 | .flags = GENL_ADMIN_PERM, |
9361 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9362 | NL80211_FLAG_NEED_RTNL, |
9363 | }, |
9364 | { |
9365 | .cmd = NL80211_CMD_SET_POWER_SAVE, |
9366 | .doit = nl80211_set_power_save, |
9367 | .policy = nl80211_policy, |
9368 | .flags = GENL_ADMIN_PERM, |
9369 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9370 | NL80211_FLAG_NEED_RTNL, |
9371 | }, |
9372 | { |
9373 | .cmd = NL80211_CMD_GET_POWER_SAVE, |
9374 | .doit = nl80211_get_power_save, |
9375 | .policy = nl80211_policy, |
9376 | /* can be retrieved by unprivileged users */ |
9377 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9378 | NL80211_FLAG_NEED_RTNL, |
9379 | }, |
9380 | { |
9381 | .cmd = NL80211_CMD_SET_CQM, |
9382 | .doit = nl80211_set_cqm, |
9383 | .policy = nl80211_policy, |
9384 | .flags = GENL_ADMIN_PERM, |
9385 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9386 | NL80211_FLAG_NEED_RTNL, |
9387 | }, |
9388 | { |
9389 | .cmd = NL80211_CMD_SET_CHANNEL, |
9390 | .doit = nl80211_set_channel, |
9391 | .policy = nl80211_policy, |
9392 | .flags = GENL_ADMIN_PERM, |
9393 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9394 | NL80211_FLAG_NEED_RTNL, |
9395 | }, |
9396 | { |
9397 | .cmd = NL80211_CMD_SET_WDS_PEER, |
9398 | .doit = nl80211_set_wds_peer, |
9399 | .policy = nl80211_policy, |
9400 | .flags = GENL_ADMIN_PERM, |
9401 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9402 | NL80211_FLAG_NEED_RTNL, |
9403 | }, |
9404 | { |
9405 | .cmd = NL80211_CMD_JOIN_MESH, |
9406 | .doit = nl80211_join_mesh, |
9407 | .policy = nl80211_policy, |
9408 | .flags = GENL_ADMIN_PERM, |
9409 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9410 | NL80211_FLAG_NEED_RTNL, |
9411 | }, |
9412 | { |
9413 | .cmd = NL80211_CMD_LEAVE_MESH, |
9414 | .doit = nl80211_leave_mesh, |
9415 | .policy = nl80211_policy, |
9416 | .flags = GENL_ADMIN_PERM, |
9417 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9418 | NL80211_FLAG_NEED_RTNL, |
9419 | }, |
9420 | #ifdef CONFIG_PM |
9421 | { |
9422 | .cmd = NL80211_CMD_GET_WOWLAN, |
9423 | .doit = nl80211_get_wowlan, |
9424 | .policy = nl80211_policy, |
9425 | /* can be retrieved by unprivileged users */ |
9426 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9427 | NL80211_FLAG_NEED_RTNL, |
9428 | }, |
9429 | { |
9430 | .cmd = NL80211_CMD_SET_WOWLAN, |
9431 | .doit = nl80211_set_wowlan, |
9432 | .policy = nl80211_policy, |
9433 | .flags = GENL_ADMIN_PERM, |
9434 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9435 | NL80211_FLAG_NEED_RTNL, |
9436 | }, |
9437 | #endif |
9438 | { |
9439 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, |
9440 | .doit = nl80211_set_rekey_data, |
9441 | .policy = nl80211_policy, |
9442 | .flags = GENL_ADMIN_PERM, |
9443 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9444 | NL80211_FLAG_NEED_RTNL, |
9445 | }, |
9446 | { |
9447 | .cmd = NL80211_CMD_TDLS_MGMT, |
9448 | .doit = nl80211_tdls_mgmt, |
9449 | .policy = nl80211_policy, |
9450 | .flags = GENL_ADMIN_PERM, |
9451 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9452 | NL80211_FLAG_NEED_RTNL, |
9453 | }, |
9454 | { |
9455 | .cmd = NL80211_CMD_TDLS_OPER, |
9456 | .doit = nl80211_tdls_oper, |
9457 | .policy = nl80211_policy, |
9458 | .flags = GENL_ADMIN_PERM, |
9459 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9460 | NL80211_FLAG_NEED_RTNL, |
9461 | }, |
9462 | { |
9463 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, |
9464 | .doit = nl80211_register_unexpected_frame, |
9465 | .policy = nl80211_policy, |
9466 | .flags = GENL_ADMIN_PERM, |
9467 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9468 | NL80211_FLAG_NEED_RTNL, |
9469 | }, |
9470 | { |
9471 | .cmd = NL80211_CMD_PROBE_CLIENT, |
9472 | .doit = nl80211_probe_client, |
9473 | .policy = nl80211_policy, |
9474 | .flags = GENL_ADMIN_PERM, |
9475 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9476 | NL80211_FLAG_NEED_RTNL, |
9477 | }, |
9478 | { |
9479 | .cmd = NL80211_CMD_REGISTER_BEACONS, |
9480 | .doit = nl80211_register_beacons, |
9481 | .policy = nl80211_policy, |
9482 | .flags = GENL_ADMIN_PERM, |
9483 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9484 | NL80211_FLAG_NEED_RTNL, |
9485 | }, |
9486 | { |
9487 | .cmd = NL80211_CMD_SET_NOACK_MAP, |
9488 | .doit = nl80211_set_noack_map, |
9489 | .policy = nl80211_policy, |
9490 | .flags = GENL_ADMIN_PERM, |
9491 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9492 | NL80211_FLAG_NEED_RTNL, |
9493 | }, |
9494 | { |
9495 | .cmd = NL80211_CMD_START_P2P_DEVICE, |
9496 | .doit = nl80211_start_p2p_device, |
9497 | .policy = nl80211_policy, |
9498 | .flags = GENL_ADMIN_PERM, |
9499 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
9500 | NL80211_FLAG_NEED_RTNL, |
9501 | }, |
9502 | { |
9503 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, |
9504 | .doit = nl80211_stop_p2p_device, |
9505 | .policy = nl80211_policy, |
9506 | .flags = GENL_ADMIN_PERM, |
9507 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9508 | NL80211_FLAG_NEED_RTNL, |
9509 | }, |
9510 | { |
9511 | .cmd = NL80211_CMD_SET_MCAST_RATE, |
9512 | .doit = nl80211_set_mcast_rate, |
9513 | .policy = nl80211_policy, |
9514 | .flags = GENL_ADMIN_PERM, |
9515 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9516 | NL80211_FLAG_NEED_RTNL, |
9517 | }, |
9518 | { |
9519 | .cmd = NL80211_CMD_SET_MAC_ACL, |
9520 | .doit = nl80211_set_mac_acl, |
9521 | .policy = nl80211_policy, |
9522 | .flags = GENL_ADMIN_PERM, |
9523 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9524 | NL80211_FLAG_NEED_RTNL, |
9525 | }, |
9526 | { |
9527 | .cmd = NL80211_CMD_RADAR_DETECT, |
9528 | .doit = nl80211_start_radar_detection, |
9529 | .policy = nl80211_policy, |
9530 | .flags = GENL_ADMIN_PERM, |
9531 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9532 | NL80211_FLAG_NEED_RTNL, |
9533 | }, |
9534 | { |
9535 | .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES, |
9536 | .doit = nl80211_get_protocol_features, |
9537 | .policy = nl80211_policy, |
9538 | }, |
9539 | { |
9540 | .cmd = NL80211_CMD_UPDATE_FT_IES, |
9541 | .doit = nl80211_update_ft_ies, |
9542 | .policy = nl80211_policy, |
9543 | .flags = GENL_ADMIN_PERM, |
9544 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9545 | NL80211_FLAG_NEED_RTNL, |
9546 | }, |
9547 | { |
9548 | .cmd = NL80211_CMD_CRIT_PROTOCOL_START, |
9549 | .doit = nl80211_crit_protocol_start, |
9550 | .policy = nl80211_policy, |
9551 | .flags = GENL_ADMIN_PERM, |
9552 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9553 | NL80211_FLAG_NEED_RTNL, |
9554 | }, |
9555 | { |
9556 | .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP, |
9557 | .doit = nl80211_crit_protocol_stop, |
9558 | .policy = nl80211_policy, |
9559 | .flags = GENL_ADMIN_PERM, |
9560 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
9561 | NL80211_FLAG_NEED_RTNL, |
9562 | }, |
9563 | { |
9564 | .cmd = NL80211_CMD_GET_COALESCE, |
9565 | .doit = nl80211_get_coalesce, |
9566 | .policy = nl80211_policy, |
9567 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9568 | NL80211_FLAG_NEED_RTNL, |
9569 | }, |
9570 | { |
9571 | .cmd = NL80211_CMD_SET_COALESCE, |
9572 | .doit = nl80211_set_coalesce, |
9573 | .policy = nl80211_policy, |
9574 | .flags = GENL_ADMIN_PERM, |
9575 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9576 | NL80211_FLAG_NEED_RTNL, |
9577 | }, |
9578 | { |
9579 | .cmd = NL80211_CMD_CHANNEL_SWITCH, |
9580 | .doit = nl80211_channel_switch, |
9581 | .policy = nl80211_policy, |
9582 | .flags = GENL_ADMIN_PERM, |
9583 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
9584 | NL80211_FLAG_NEED_RTNL, |
9585 | }, |
9586 | }; |
9587 | |
9588 | /* notification functions */ |
9589 | |
9590 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) |
9591 | { |
9592 | struct sk_buff *msg; |
9593 | struct nl80211_dump_wiphy_state state = {}; |
9594 | |
9595 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9596 | if (!msg) |
9597 | return; |
9598 | |
9599 | if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) { |
9600 | nlmsg_free(msg); |
9601 | return; |
9602 | } |
9603 | |
9604 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9605 | NL80211_MCGRP_CONFIG, GFP_KERNEL); |
9606 | } |
9607 | |
9608 | static int nl80211_add_scan_req(struct sk_buff *msg, |
9609 | struct cfg80211_registered_device *rdev) |
9610 | { |
9611 | struct cfg80211_scan_request *req = rdev->scan_req; |
9612 | struct nlattr *nest; |
9613 | int i; |
9614 | |
9615 | if (WARN_ON(!req)) |
9616 | return 0; |
9617 | |
9618 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); |
9619 | if (!nest) |
9620 | goto nla_put_failure; |
9621 | for (i = 0; i < req->n_ssids; i++) { |
9622 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) |
9623 | goto nla_put_failure; |
9624 | } |
9625 | nla_nest_end(msg, nest); |
9626 | |
9627 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); |
9628 | if (!nest) |
9629 | goto nla_put_failure; |
9630 | for (i = 0; i < req->n_channels; i++) { |
9631 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) |
9632 | goto nla_put_failure; |
9633 | } |
9634 | nla_nest_end(msg, nest); |
9635 | |
9636 | if (req->ie && |
9637 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) |
9638 | goto nla_put_failure; |
9639 | |
9640 | if (req->flags && |
9641 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags)) |
9642 | goto nla_put_failure; |
9643 | |
9644 | return 0; |
9645 | nla_put_failure: |
9646 | return -ENOBUFS; |
9647 | } |
9648 | |
9649 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
9650 | struct cfg80211_registered_device *rdev, |
9651 | struct wireless_dev *wdev, |
9652 | u32 portid, u32 seq, int flags, |
9653 | u32 cmd) |
9654 | { |
9655 | void *hdr; |
9656 | |
9657 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
9658 | if (!hdr) |
9659 | return -1; |
9660 | |
9661 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9662 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
9663 | wdev->netdev->ifindex)) || |
9664 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
9665 | goto nla_put_failure; |
9666 | |
9667 | /* ignore errors and send incomplete event anyway */ |
9668 | nl80211_add_scan_req(msg, rdev); |
9669 | |
9670 | return genlmsg_end(msg, hdr); |
9671 | |
9672 | nla_put_failure: |
9673 | genlmsg_cancel(msg, hdr); |
9674 | return -EMSGSIZE; |
9675 | } |
9676 | |
9677 | static int |
9678 | nl80211_send_sched_scan_msg(struct sk_buff *msg, |
9679 | struct cfg80211_registered_device *rdev, |
9680 | struct net_device *netdev, |
9681 | u32 portid, u32 seq, int flags, u32 cmd) |
9682 | { |
9683 | void *hdr; |
9684 | |
9685 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
9686 | if (!hdr) |
9687 | return -1; |
9688 | |
9689 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9690 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
9691 | goto nla_put_failure; |
9692 | |
9693 | return genlmsg_end(msg, hdr); |
9694 | |
9695 | nla_put_failure: |
9696 | genlmsg_cancel(msg, hdr); |
9697 | return -EMSGSIZE; |
9698 | } |
9699 | |
9700 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
9701 | struct wireless_dev *wdev) |
9702 | { |
9703 | struct sk_buff *msg; |
9704 | |
9705 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9706 | if (!msg) |
9707 | return; |
9708 | |
9709 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
9710 | NL80211_CMD_TRIGGER_SCAN) < 0) { |
9711 | nlmsg_free(msg); |
9712 | return; |
9713 | } |
9714 | |
9715 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9716 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
9717 | } |
9718 | |
9719 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
9720 | struct wireless_dev *wdev) |
9721 | { |
9722 | struct sk_buff *msg; |
9723 | |
9724 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9725 | if (!msg) |
9726 | return; |
9727 | |
9728 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
9729 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { |
9730 | nlmsg_free(msg); |
9731 | return; |
9732 | } |
9733 | |
9734 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9735 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
9736 | } |
9737 | |
9738 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, |
9739 | struct wireless_dev *wdev) |
9740 | { |
9741 | struct sk_buff *msg; |
9742 | |
9743 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9744 | if (!msg) |
9745 | return; |
9746 | |
9747 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
9748 | NL80211_CMD_SCAN_ABORTED) < 0) { |
9749 | nlmsg_free(msg); |
9750 | return; |
9751 | } |
9752 | |
9753 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9754 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
9755 | } |
9756 | |
9757 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
9758 | struct net_device *netdev) |
9759 | { |
9760 | struct sk_buff *msg; |
9761 | |
9762 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9763 | if (!msg) |
9764 | return; |
9765 | |
9766 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, |
9767 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { |
9768 | nlmsg_free(msg); |
9769 | return; |
9770 | } |
9771 | |
9772 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9773 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
9774 | } |
9775 | |
9776 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, |
9777 | struct net_device *netdev, u32 cmd) |
9778 | { |
9779 | struct sk_buff *msg; |
9780 | |
9781 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9782 | if (!msg) |
9783 | return; |
9784 | |
9785 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { |
9786 | nlmsg_free(msg); |
9787 | return; |
9788 | } |
9789 | |
9790 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9791 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
9792 | } |
9793 | |
9794 | /* |
9795 | * This can happen on global regulatory changes or device specific settings |
9796 | * based on custom world regulatory domains. |
9797 | */ |
9798 | void nl80211_send_reg_change_event(struct regulatory_request *request) |
9799 | { |
9800 | struct sk_buff *msg; |
9801 | void *hdr; |
9802 | |
9803 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9804 | if (!msg) |
9805 | return; |
9806 | |
9807 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); |
9808 | if (!hdr) { |
9809 | nlmsg_free(msg); |
9810 | return; |
9811 | } |
9812 | |
9813 | /* Userspace can always count this one always being set */ |
9814 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
9815 | goto nla_put_failure; |
9816 | |
9817 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { |
9818 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
9819 | NL80211_REGDOM_TYPE_WORLD)) |
9820 | goto nla_put_failure; |
9821 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { |
9822 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
9823 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) |
9824 | goto nla_put_failure; |
9825 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || |
9826 | request->intersect) { |
9827 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
9828 | NL80211_REGDOM_TYPE_INTERSECTION)) |
9829 | goto nla_put_failure; |
9830 | } else { |
9831 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, |
9832 | NL80211_REGDOM_TYPE_COUNTRY) || |
9833 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, |
9834 | request->alpha2)) |
9835 | goto nla_put_failure; |
9836 | } |
9837 | |
9838 | if (request->wiphy_idx != WIPHY_IDX_INVALID && |
9839 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) |
9840 | goto nla_put_failure; |
9841 | |
9842 | genlmsg_end(msg, hdr); |
9843 | |
9844 | rcu_read_lock(); |
9845 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
9846 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
9847 | rcu_read_unlock(); |
9848 | |
9849 | return; |
9850 | |
9851 | nla_put_failure: |
9852 | genlmsg_cancel(msg, hdr); |
9853 | nlmsg_free(msg); |
9854 | } |
9855 | |
9856 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
9857 | struct net_device *netdev, |
9858 | const u8 *buf, size_t len, |
9859 | enum nl80211_commands cmd, gfp_t gfp) |
9860 | { |
9861 | struct sk_buff *msg; |
9862 | void *hdr; |
9863 | |
9864 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
9865 | if (!msg) |
9866 | return; |
9867 | |
9868 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
9869 | if (!hdr) { |
9870 | nlmsg_free(msg); |
9871 | return; |
9872 | } |
9873 | |
9874 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9875 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
9876 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) |
9877 | goto nla_put_failure; |
9878 | |
9879 | genlmsg_end(msg, hdr); |
9880 | |
9881 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9882 | NL80211_MCGRP_MLME, gfp); |
9883 | return; |
9884 | |
9885 | nla_put_failure: |
9886 | genlmsg_cancel(msg, hdr); |
9887 | nlmsg_free(msg); |
9888 | } |
9889 | |
9890 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, |
9891 | struct net_device *netdev, const u8 *buf, |
9892 | size_t len, gfp_t gfp) |
9893 | { |
9894 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
9895 | NL80211_CMD_AUTHENTICATE, gfp); |
9896 | } |
9897 | |
9898 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, |
9899 | struct net_device *netdev, const u8 *buf, |
9900 | size_t len, gfp_t gfp) |
9901 | { |
9902 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
9903 | NL80211_CMD_ASSOCIATE, gfp); |
9904 | } |
9905 | |
9906 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
9907 | struct net_device *netdev, const u8 *buf, |
9908 | size_t len, gfp_t gfp) |
9909 | { |
9910 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
9911 | NL80211_CMD_DEAUTHENTICATE, gfp); |
9912 | } |
9913 | |
9914 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
9915 | struct net_device *netdev, const u8 *buf, |
9916 | size_t len, gfp_t gfp) |
9917 | { |
9918 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
9919 | NL80211_CMD_DISASSOCIATE, gfp); |
9920 | } |
9921 | |
9922 | void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, |
9923 | size_t len) |
9924 | { |
9925 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
9926 | struct wiphy *wiphy = wdev->wiphy; |
9927 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
9928 | const struct ieee80211_mgmt *mgmt = (void *)buf; |
9929 | u32 cmd; |
9930 | |
9931 | if (WARN_ON(len < 2)) |
9932 | return; |
9933 | |
9934 | if (ieee80211_is_deauth(mgmt->frame_control)) |
9935 | cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE; |
9936 | else |
9937 | cmd = NL80211_CMD_UNPROT_DISASSOCIATE; |
9938 | |
9939 | trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); |
9940 | nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC); |
9941 | } |
9942 | EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt); |
9943 | |
9944 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
9945 | struct net_device *netdev, int cmd, |
9946 | const u8 *addr, gfp_t gfp) |
9947 | { |
9948 | struct sk_buff *msg; |
9949 | void *hdr; |
9950 | |
9951 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
9952 | if (!msg) |
9953 | return; |
9954 | |
9955 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
9956 | if (!hdr) { |
9957 | nlmsg_free(msg); |
9958 | return; |
9959 | } |
9960 | |
9961 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
9962 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
9963 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || |
9964 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) |
9965 | goto nla_put_failure; |
9966 | |
9967 | genlmsg_end(msg, hdr); |
9968 | |
9969 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
9970 | NL80211_MCGRP_MLME, gfp); |
9971 | return; |
9972 | |
9973 | nla_put_failure: |
9974 | genlmsg_cancel(msg, hdr); |
9975 | nlmsg_free(msg); |
9976 | } |
9977 | |
9978 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, |
9979 | struct net_device *netdev, const u8 *addr, |
9980 | gfp_t gfp) |
9981 | { |
9982 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, |
9983 | addr, gfp); |
9984 | } |
9985 | |
9986 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, |
9987 | struct net_device *netdev, const u8 *addr, |
9988 | gfp_t gfp) |
9989 | { |
9990 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
9991 | addr, gfp); |
9992 | } |
9993 | |
9994 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
9995 | struct net_device *netdev, const u8 *bssid, |
9996 | const u8 *req_ie, size_t req_ie_len, |
9997 | const u8 *resp_ie, size_t resp_ie_len, |
9998 | u16 status, gfp_t gfp) |
9999 | { |
10000 | struct sk_buff *msg; |
10001 | void *hdr; |
10002 | |
10003 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10004 | if (!msg) |
10005 | return; |
10006 | |
10007 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); |
10008 | if (!hdr) { |
10009 | nlmsg_free(msg); |
10010 | return; |
10011 | } |
10012 | |
10013 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10014 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
10015 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || |
10016 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || |
10017 | (req_ie && |
10018 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || |
10019 | (resp_ie && |
10020 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) |
10021 | goto nla_put_failure; |
10022 | |
10023 | genlmsg_end(msg, hdr); |
10024 | |
10025 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10026 | NL80211_MCGRP_MLME, gfp); |
10027 | return; |
10028 | |
10029 | nla_put_failure: |
10030 | genlmsg_cancel(msg, hdr); |
10031 | nlmsg_free(msg); |
10032 | |
10033 | } |
10034 | |
10035 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, |
10036 | struct net_device *netdev, const u8 *bssid, |
10037 | const u8 *req_ie, size_t req_ie_len, |
10038 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) |
10039 | { |
10040 | struct sk_buff *msg; |
10041 | void *hdr; |
10042 | |
10043 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10044 | if (!msg) |
10045 | return; |
10046 | |
10047 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); |
10048 | if (!hdr) { |
10049 | nlmsg_free(msg); |
10050 | return; |
10051 | } |
10052 | |
10053 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10054 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
10055 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || |
10056 | (req_ie && |
10057 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || |
10058 | (resp_ie && |
10059 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) |
10060 | goto nla_put_failure; |
10061 | |
10062 | genlmsg_end(msg, hdr); |
10063 | |
10064 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10065 | NL80211_MCGRP_MLME, gfp); |
10066 | return; |
10067 | |
10068 | nla_put_failure: |
10069 | genlmsg_cancel(msg, hdr); |
10070 | nlmsg_free(msg); |
10071 | |
10072 | } |
10073 | |
10074 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, |
10075 | struct net_device *netdev, u16 reason, |
10076 | const u8 *ie, size_t ie_len, bool from_ap) |
10077 | { |
10078 | struct sk_buff *msg; |
10079 | void *hdr; |
10080 | |
10081 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
10082 | if (!msg) |
10083 | return; |
10084 | |
10085 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); |
10086 | if (!hdr) { |
10087 | nlmsg_free(msg); |
10088 | return; |
10089 | } |
10090 | |
10091 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10092 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
10093 | (from_ap && reason && |
10094 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || |
10095 | (from_ap && |
10096 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || |
10097 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) |
10098 | goto nla_put_failure; |
10099 | |
10100 | genlmsg_end(msg, hdr); |
10101 | |
10102 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10103 | NL80211_MCGRP_MLME, GFP_KERNEL); |
10104 | return; |
10105 | |
10106 | nla_put_failure: |
10107 | genlmsg_cancel(msg, hdr); |
10108 | nlmsg_free(msg); |
10109 | |
10110 | } |
10111 | |
10112 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
10113 | struct net_device *netdev, const u8 *bssid, |
10114 | gfp_t gfp) |
10115 | { |
10116 | struct sk_buff *msg; |
10117 | void *hdr; |
10118 | |
10119 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10120 | if (!msg) |
10121 | return; |
10122 | |
10123 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); |
10124 | if (!hdr) { |
10125 | nlmsg_free(msg); |
10126 | return; |
10127 | } |
10128 | |
10129 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10130 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
10131 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) |
10132 | goto nla_put_failure; |
10133 | |
10134 | genlmsg_end(msg, hdr); |
10135 | |
10136 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10137 | NL80211_MCGRP_MLME, gfp); |
10138 | return; |
10139 | |
10140 | nla_put_failure: |
10141 | genlmsg_cancel(msg, hdr); |
10142 | nlmsg_free(msg); |
10143 | } |
10144 | |
10145 | void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, |
10146 | const u8* ie, u8 ie_len, gfp_t gfp) |
10147 | { |
10148 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10149 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
10150 | struct sk_buff *msg; |
10151 | void *hdr; |
10152 | |
10153 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT)) |
10154 | return; |
10155 | |
10156 | trace_cfg80211_notify_new_peer_candidate(dev, addr); |
10157 | |
10158 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10159 | if (!msg) |
10160 | return; |
10161 | |
10162 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); |
10163 | if (!hdr) { |
10164 | nlmsg_free(msg); |
10165 | return; |
10166 | } |
10167 | |
10168 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10169 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10170 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || |
10171 | (ie_len && ie && |
10172 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) |
10173 | goto nla_put_failure; |
10174 | |
10175 | genlmsg_end(msg, hdr); |
10176 | |
10177 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10178 | NL80211_MCGRP_MLME, gfp); |
10179 | return; |
10180 | |
10181 | nla_put_failure: |
10182 | genlmsg_cancel(msg, hdr); |
10183 | nlmsg_free(msg); |
10184 | } |
10185 | EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate); |
10186 | |
10187 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
10188 | struct net_device *netdev, const u8 *addr, |
10189 | enum nl80211_key_type key_type, int key_id, |
10190 | const u8 *tsc, gfp_t gfp) |
10191 | { |
10192 | struct sk_buff *msg; |
10193 | void *hdr; |
10194 | |
10195 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10196 | if (!msg) |
10197 | return; |
10198 | |
10199 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); |
10200 | if (!hdr) { |
10201 | nlmsg_free(msg); |
10202 | return; |
10203 | } |
10204 | |
10205 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10206 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
10207 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || |
10208 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || |
10209 | (key_id != -1 && |
10210 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || |
10211 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) |
10212 | goto nla_put_failure; |
10213 | |
10214 | genlmsg_end(msg, hdr); |
10215 | |
10216 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10217 | NL80211_MCGRP_MLME, gfp); |
10218 | return; |
10219 | |
10220 | nla_put_failure: |
10221 | genlmsg_cancel(msg, hdr); |
10222 | nlmsg_free(msg); |
10223 | } |
10224 | |
10225 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
10226 | struct ieee80211_channel *channel_before, |
10227 | struct ieee80211_channel *channel_after) |
10228 | { |
10229 | struct sk_buff *msg; |
10230 | void *hdr; |
10231 | struct nlattr *nl_freq; |
10232 | |
10233 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
10234 | if (!msg) |
10235 | return; |
10236 | |
10237 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); |
10238 | if (!hdr) { |
10239 | nlmsg_free(msg); |
10240 | return; |
10241 | } |
10242 | |
10243 | /* |
10244 | * Since we are applying the beacon hint to a wiphy we know its |
10245 | * wiphy_idx is valid |
10246 | */ |
10247 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
10248 | goto nla_put_failure; |
10249 | |
10250 | /* Before */ |
10251 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); |
10252 | if (!nl_freq) |
10253 | goto nla_put_failure; |
10254 | if (nl80211_msg_put_channel(msg, channel_before, false)) |
10255 | goto nla_put_failure; |
10256 | nla_nest_end(msg, nl_freq); |
10257 | |
10258 | /* After */ |
10259 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); |
10260 | if (!nl_freq) |
10261 | goto nla_put_failure; |
10262 | if (nl80211_msg_put_channel(msg, channel_after, false)) |
10263 | goto nla_put_failure; |
10264 | nla_nest_end(msg, nl_freq); |
10265 | |
10266 | genlmsg_end(msg, hdr); |
10267 | |
10268 | rcu_read_lock(); |
10269 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
10270 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
10271 | rcu_read_unlock(); |
10272 | |
10273 | return; |
10274 | |
10275 | nla_put_failure: |
10276 | genlmsg_cancel(msg, hdr); |
10277 | nlmsg_free(msg); |
10278 | } |
10279 | |
10280 | static void nl80211_send_remain_on_chan_event( |
10281 | int cmd, struct cfg80211_registered_device *rdev, |
10282 | struct wireless_dev *wdev, u64 cookie, |
10283 | struct ieee80211_channel *chan, |
10284 | unsigned int duration, gfp_t gfp) |
10285 | { |
10286 | struct sk_buff *msg; |
10287 | void *hdr; |
10288 | |
10289 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10290 | if (!msg) |
10291 | return; |
10292 | |
10293 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
10294 | if (!hdr) { |
10295 | nlmsg_free(msg); |
10296 | return; |
10297 | } |
10298 | |
10299 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10300 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
10301 | wdev->netdev->ifindex)) || |
10302 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
10303 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
10304 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
10305 | NL80211_CHAN_NO_HT) || |
10306 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
10307 | goto nla_put_failure; |
10308 | |
10309 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
10310 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) |
10311 | goto nla_put_failure; |
10312 | |
10313 | genlmsg_end(msg, hdr); |
10314 | |
10315 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10316 | NL80211_MCGRP_MLME, gfp); |
10317 | return; |
10318 | |
10319 | nla_put_failure: |
10320 | genlmsg_cancel(msg, hdr); |
10321 | nlmsg_free(msg); |
10322 | } |
10323 | |
10324 | void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, |
10325 | struct ieee80211_channel *chan, |
10326 | unsigned int duration, gfp_t gfp) |
10327 | { |
10328 | struct wiphy *wiphy = wdev->wiphy; |
10329 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10330 | |
10331 | trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration); |
10332 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, |
10333 | rdev, wdev, cookie, chan, |
10334 | duration, gfp); |
10335 | } |
10336 | EXPORT_SYMBOL(cfg80211_ready_on_channel); |
10337 | |
10338 | void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, |
10339 | struct ieee80211_channel *chan, |
10340 | gfp_t gfp) |
10341 | { |
10342 | struct wiphy *wiphy = wdev->wiphy; |
10343 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10344 | |
10345 | trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan); |
10346 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, |
10347 | rdev, wdev, cookie, chan, 0, gfp); |
10348 | } |
10349 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); |
10350 | |
10351 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, |
10352 | struct station_info *sinfo, gfp_t gfp) |
10353 | { |
10354 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
10355 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10356 | struct sk_buff *msg; |
10357 | |
10358 | trace_cfg80211_new_sta(dev, mac_addr, sinfo); |
10359 | |
10360 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10361 | if (!msg) |
10362 | return; |
10363 | |
10364 | if (nl80211_send_station(msg, 0, 0, 0, |
10365 | rdev, dev, mac_addr, sinfo) < 0) { |
10366 | nlmsg_free(msg); |
10367 | return; |
10368 | } |
10369 | |
10370 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10371 | NL80211_MCGRP_MLME, gfp); |
10372 | } |
10373 | EXPORT_SYMBOL(cfg80211_new_sta); |
10374 | |
10375 | void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp) |
10376 | { |
10377 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
10378 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10379 | struct sk_buff *msg; |
10380 | void *hdr; |
10381 | |
10382 | trace_cfg80211_del_sta(dev, mac_addr); |
10383 | |
10384 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10385 | if (!msg) |
10386 | return; |
10387 | |
10388 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); |
10389 | if (!hdr) { |
10390 | nlmsg_free(msg); |
10391 | return; |
10392 | } |
10393 | |
10394 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10395 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) |
10396 | goto nla_put_failure; |
10397 | |
10398 | genlmsg_end(msg, hdr); |
10399 | |
10400 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10401 | NL80211_MCGRP_MLME, gfp); |
10402 | return; |
10403 | |
10404 | nla_put_failure: |
10405 | genlmsg_cancel(msg, hdr); |
10406 | nlmsg_free(msg); |
10407 | } |
10408 | EXPORT_SYMBOL(cfg80211_del_sta); |
10409 | |
10410 | void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, |
10411 | enum nl80211_connect_failed_reason reason, |
10412 | gfp_t gfp) |
10413 | { |
10414 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
10415 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10416 | struct sk_buff *msg; |
10417 | void *hdr; |
10418 | |
10419 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); |
10420 | if (!msg) |
10421 | return; |
10422 | |
10423 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); |
10424 | if (!hdr) { |
10425 | nlmsg_free(msg); |
10426 | return; |
10427 | } |
10428 | |
10429 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10430 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || |
10431 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) |
10432 | goto nla_put_failure; |
10433 | |
10434 | genlmsg_end(msg, hdr); |
10435 | |
10436 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10437 | NL80211_MCGRP_MLME, gfp); |
10438 | return; |
10439 | |
10440 | nla_put_failure: |
10441 | genlmsg_cancel(msg, hdr); |
10442 | nlmsg_free(msg); |
10443 | } |
10444 | EXPORT_SYMBOL(cfg80211_conn_failed); |
10445 | |
10446 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
10447 | const u8 *addr, gfp_t gfp) |
10448 | { |
10449 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10450 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
10451 | struct sk_buff *msg; |
10452 | void *hdr; |
10453 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); |
10454 | |
10455 | if (!nlportid) |
10456 | return false; |
10457 | |
10458 | msg = nlmsg_new(100, gfp); |
10459 | if (!msg) |
10460 | return true; |
10461 | |
10462 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
10463 | if (!hdr) { |
10464 | nlmsg_free(msg); |
10465 | return true; |
10466 | } |
10467 | |
10468 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10469 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10470 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) |
10471 | goto nla_put_failure; |
10472 | |
10473 | genlmsg_end(msg, hdr); |
10474 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
10475 | return true; |
10476 | |
10477 | nla_put_failure: |
10478 | genlmsg_cancel(msg, hdr); |
10479 | nlmsg_free(msg); |
10480 | return true; |
10481 | } |
10482 | |
10483 | bool cfg80211_rx_spurious_frame(struct net_device *dev, |
10484 | const u8 *addr, gfp_t gfp) |
10485 | { |
10486 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10487 | bool ret; |
10488 | |
10489 | trace_cfg80211_rx_spurious_frame(dev, addr); |
10490 | |
10491 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && |
10492 | wdev->iftype != NL80211_IFTYPE_P2P_GO)) { |
10493 | trace_cfg80211_return_bool(false); |
10494 | return false; |
10495 | } |
10496 | ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, |
10497 | addr, gfp); |
10498 | trace_cfg80211_return_bool(ret); |
10499 | return ret; |
10500 | } |
10501 | EXPORT_SYMBOL(cfg80211_rx_spurious_frame); |
10502 | |
10503 | bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, |
10504 | const u8 *addr, gfp_t gfp) |
10505 | { |
10506 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10507 | bool ret; |
10508 | |
10509 | trace_cfg80211_rx_unexpected_4addr_frame(dev, addr); |
10510 | |
10511 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && |
10512 | wdev->iftype != NL80211_IFTYPE_P2P_GO && |
10513 | wdev->iftype != NL80211_IFTYPE_AP_VLAN)) { |
10514 | trace_cfg80211_return_bool(false); |
10515 | return false; |
10516 | } |
10517 | ret = __nl80211_unexpected_frame(dev, |
10518 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, |
10519 | addr, gfp); |
10520 | trace_cfg80211_return_bool(ret); |
10521 | return ret; |
10522 | } |
10523 | EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame); |
10524 | |
10525 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
10526 | struct wireless_dev *wdev, u32 nlportid, |
10527 | int freq, int sig_dbm, |
10528 | const u8 *buf, size_t len, u32 flags, gfp_t gfp) |
10529 | { |
10530 | struct net_device *netdev = wdev->netdev; |
10531 | struct sk_buff *msg; |
10532 | void *hdr; |
10533 | |
10534 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10535 | if (!msg) |
10536 | return -ENOMEM; |
10537 | |
10538 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
10539 | if (!hdr) { |
10540 | nlmsg_free(msg); |
10541 | return -ENOMEM; |
10542 | } |
10543 | |
10544 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10545 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
10546 | netdev->ifindex)) || |
10547 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
10548 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || |
10549 | (sig_dbm && |
10550 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || |
10551 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
10552 | (flags && |
10553 | nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags))) |
10554 | goto nla_put_failure; |
10555 | |
10556 | genlmsg_end(msg, hdr); |
10557 | |
10558 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
10559 | |
10560 | nla_put_failure: |
10561 | genlmsg_cancel(msg, hdr); |
10562 | nlmsg_free(msg); |
10563 | return -ENOBUFS; |
10564 | } |
10565 | |
10566 | void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, |
10567 | const u8 *buf, size_t len, bool ack, gfp_t gfp) |
10568 | { |
10569 | struct wiphy *wiphy = wdev->wiphy; |
10570 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10571 | struct net_device *netdev = wdev->netdev; |
10572 | struct sk_buff *msg; |
10573 | void *hdr; |
10574 | |
10575 | trace_cfg80211_mgmt_tx_status(wdev, cookie, ack); |
10576 | |
10577 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10578 | if (!msg) |
10579 | return; |
10580 | |
10581 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
10582 | if (!hdr) { |
10583 | nlmsg_free(msg); |
10584 | return; |
10585 | } |
10586 | |
10587 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10588 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
10589 | netdev->ifindex)) || |
10590 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
10591 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
10592 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || |
10593 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) |
10594 | goto nla_put_failure; |
10595 | |
10596 | genlmsg_end(msg, hdr); |
10597 | |
10598 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10599 | NL80211_MCGRP_MLME, gfp); |
10600 | return; |
10601 | |
10602 | nla_put_failure: |
10603 | genlmsg_cancel(msg, hdr); |
10604 | nlmsg_free(msg); |
10605 | } |
10606 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); |
10607 | |
10608 | void cfg80211_cqm_rssi_notify(struct net_device *dev, |
10609 | enum nl80211_cqm_rssi_threshold_event rssi_event, |
10610 | gfp_t gfp) |
10611 | { |
10612 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10613 | struct wiphy *wiphy = wdev->wiphy; |
10614 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10615 | struct sk_buff *msg; |
10616 | struct nlattr *pinfoattr; |
10617 | void *hdr; |
10618 | |
10619 | trace_cfg80211_cqm_rssi_notify(dev, rssi_event); |
10620 | |
10621 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10622 | if (!msg) |
10623 | return; |
10624 | |
10625 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); |
10626 | if (!hdr) { |
10627 | nlmsg_free(msg); |
10628 | return; |
10629 | } |
10630 | |
10631 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10632 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
10633 | goto nla_put_failure; |
10634 | |
10635 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); |
10636 | if (!pinfoattr) |
10637 | goto nla_put_failure; |
10638 | |
10639 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, |
10640 | rssi_event)) |
10641 | goto nla_put_failure; |
10642 | |
10643 | nla_nest_end(msg, pinfoattr); |
10644 | |
10645 | genlmsg_end(msg, hdr); |
10646 | |
10647 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10648 | NL80211_MCGRP_MLME, gfp); |
10649 | return; |
10650 | |
10651 | nla_put_failure: |
10652 | genlmsg_cancel(msg, hdr); |
10653 | nlmsg_free(msg); |
10654 | } |
10655 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); |
10656 | |
10657 | static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
10658 | struct net_device *netdev, const u8 *bssid, |
10659 | const u8 *replay_ctr, gfp_t gfp) |
10660 | { |
10661 | struct sk_buff *msg; |
10662 | struct nlattr *rekey_attr; |
10663 | void *hdr; |
10664 | |
10665 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10666 | if (!msg) |
10667 | return; |
10668 | |
10669 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); |
10670 | if (!hdr) { |
10671 | nlmsg_free(msg); |
10672 | return; |
10673 | } |
10674 | |
10675 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10676 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
10677 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) |
10678 | goto nla_put_failure; |
10679 | |
10680 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); |
10681 | if (!rekey_attr) |
10682 | goto nla_put_failure; |
10683 | |
10684 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
10685 | NL80211_REPLAY_CTR_LEN, replay_ctr)) |
10686 | goto nla_put_failure; |
10687 | |
10688 | nla_nest_end(msg, rekey_attr); |
10689 | |
10690 | genlmsg_end(msg, hdr); |
10691 | |
10692 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10693 | NL80211_MCGRP_MLME, gfp); |
10694 | return; |
10695 | |
10696 | nla_put_failure: |
10697 | genlmsg_cancel(msg, hdr); |
10698 | nlmsg_free(msg); |
10699 | } |
10700 | |
10701 | void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, |
10702 | const u8 *replay_ctr, gfp_t gfp) |
10703 | { |
10704 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10705 | struct wiphy *wiphy = wdev->wiphy; |
10706 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10707 | |
10708 | trace_cfg80211_gtk_rekey_notify(dev, bssid); |
10709 | nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); |
10710 | } |
10711 | EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); |
10712 | |
10713 | static void |
10714 | nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, |
10715 | struct net_device *netdev, int index, |
10716 | const u8 *bssid, bool preauth, gfp_t gfp) |
10717 | { |
10718 | struct sk_buff *msg; |
10719 | struct nlattr *attr; |
10720 | void *hdr; |
10721 | |
10722 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10723 | if (!msg) |
10724 | return; |
10725 | |
10726 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); |
10727 | if (!hdr) { |
10728 | nlmsg_free(msg); |
10729 | return; |
10730 | } |
10731 | |
10732 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10733 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
10734 | goto nla_put_failure; |
10735 | |
10736 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); |
10737 | if (!attr) |
10738 | goto nla_put_failure; |
10739 | |
10740 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
10741 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || |
10742 | (preauth && |
10743 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) |
10744 | goto nla_put_failure; |
10745 | |
10746 | nla_nest_end(msg, attr); |
10747 | |
10748 | genlmsg_end(msg, hdr); |
10749 | |
10750 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10751 | NL80211_MCGRP_MLME, gfp); |
10752 | return; |
10753 | |
10754 | nla_put_failure: |
10755 | genlmsg_cancel(msg, hdr); |
10756 | nlmsg_free(msg); |
10757 | } |
10758 | |
10759 | void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, |
10760 | const u8 *bssid, bool preauth, gfp_t gfp) |
10761 | { |
10762 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10763 | struct wiphy *wiphy = wdev->wiphy; |
10764 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10765 | |
10766 | trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth); |
10767 | nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp); |
10768 | } |
10769 | EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify); |
10770 | |
10771 | static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, |
10772 | struct net_device *netdev, |
10773 | struct cfg80211_chan_def *chandef, |
10774 | gfp_t gfp) |
10775 | { |
10776 | struct sk_buff *msg; |
10777 | void *hdr; |
10778 | |
10779 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10780 | if (!msg) |
10781 | return; |
10782 | |
10783 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); |
10784 | if (!hdr) { |
10785 | nlmsg_free(msg); |
10786 | return; |
10787 | } |
10788 | |
10789 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
10790 | goto nla_put_failure; |
10791 | |
10792 | if (nl80211_send_chandef(msg, chandef)) |
10793 | goto nla_put_failure; |
10794 | |
10795 | genlmsg_end(msg, hdr); |
10796 | |
10797 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10798 | NL80211_MCGRP_MLME, gfp); |
10799 | return; |
10800 | |
10801 | nla_put_failure: |
10802 | genlmsg_cancel(msg, hdr); |
10803 | nlmsg_free(msg); |
10804 | } |
10805 | |
10806 | void cfg80211_ch_switch_notify(struct net_device *dev, |
10807 | struct cfg80211_chan_def *chandef) |
10808 | { |
10809 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10810 | struct wiphy *wiphy = wdev->wiphy; |
10811 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10812 | |
10813 | trace_cfg80211_ch_switch_notify(dev, chandef); |
10814 | |
10815 | wdev_lock(wdev); |
10816 | |
10817 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && |
10818 | wdev->iftype != NL80211_IFTYPE_P2P_GO && |
10819 | wdev->iftype != NL80211_IFTYPE_ADHOC && |
10820 | wdev->iftype != NL80211_IFTYPE_MESH_POINT)) |
10821 | goto out; |
10822 | |
10823 | wdev->channel = chandef->chan; |
10824 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL); |
10825 | out: |
10826 | wdev_unlock(wdev); |
10827 | return; |
10828 | } |
10829 | EXPORT_SYMBOL(cfg80211_ch_switch_notify); |
10830 | |
10831 | void cfg80211_cqm_txe_notify(struct net_device *dev, |
10832 | const u8 *peer, u32 num_packets, |
10833 | u32 rate, u32 intvl, gfp_t gfp) |
10834 | { |
10835 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10836 | struct wiphy *wiphy = wdev->wiphy; |
10837 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10838 | struct sk_buff *msg; |
10839 | struct nlattr *pinfoattr; |
10840 | void *hdr; |
10841 | |
10842 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); |
10843 | if (!msg) |
10844 | return; |
10845 | |
10846 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); |
10847 | if (!hdr) { |
10848 | nlmsg_free(msg); |
10849 | return; |
10850 | } |
10851 | |
10852 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10853 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10854 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) |
10855 | goto nla_put_failure; |
10856 | |
10857 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); |
10858 | if (!pinfoattr) |
10859 | goto nla_put_failure; |
10860 | |
10861 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) |
10862 | goto nla_put_failure; |
10863 | |
10864 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) |
10865 | goto nla_put_failure; |
10866 | |
10867 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) |
10868 | goto nla_put_failure; |
10869 | |
10870 | nla_nest_end(msg, pinfoattr); |
10871 | |
10872 | genlmsg_end(msg, hdr); |
10873 | |
10874 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10875 | NL80211_MCGRP_MLME, gfp); |
10876 | return; |
10877 | |
10878 | nla_put_failure: |
10879 | genlmsg_cancel(msg, hdr); |
10880 | nlmsg_free(msg); |
10881 | } |
10882 | EXPORT_SYMBOL(cfg80211_cqm_txe_notify); |
10883 | |
10884 | void |
10885 | nl80211_radar_notify(struct cfg80211_registered_device *rdev, |
10886 | struct cfg80211_chan_def *chandef, |
10887 | enum nl80211_radar_event event, |
10888 | struct net_device *netdev, gfp_t gfp) |
10889 | { |
10890 | struct sk_buff *msg; |
10891 | void *hdr; |
10892 | |
10893 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10894 | if (!msg) |
10895 | return; |
10896 | |
10897 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT); |
10898 | if (!hdr) { |
10899 | nlmsg_free(msg); |
10900 | return; |
10901 | } |
10902 | |
10903 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
10904 | goto nla_put_failure; |
10905 | |
10906 | /* NOP and radar events don't need a netdev parameter */ |
10907 | if (netdev) { |
10908 | struct wireless_dev *wdev = netdev->ieee80211_ptr; |
10909 | |
10910 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
10911 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
10912 | goto nla_put_failure; |
10913 | } |
10914 | |
10915 | if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event)) |
10916 | goto nla_put_failure; |
10917 | |
10918 | if (nl80211_send_chandef(msg, chandef)) |
10919 | goto nla_put_failure; |
10920 | |
10921 | genlmsg_end(msg, hdr); |
10922 | |
10923 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10924 | NL80211_MCGRP_MLME, gfp); |
10925 | return; |
10926 | |
10927 | nla_put_failure: |
10928 | genlmsg_cancel(msg, hdr); |
10929 | nlmsg_free(msg); |
10930 | } |
10931 | |
10932 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, |
10933 | const u8 *peer, u32 num_packets, gfp_t gfp) |
10934 | { |
10935 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10936 | struct wiphy *wiphy = wdev->wiphy; |
10937 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
10938 | struct sk_buff *msg; |
10939 | struct nlattr *pinfoattr; |
10940 | void *hdr; |
10941 | |
10942 | trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); |
10943 | |
10944 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10945 | if (!msg) |
10946 | return; |
10947 | |
10948 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); |
10949 | if (!hdr) { |
10950 | nlmsg_free(msg); |
10951 | return; |
10952 | } |
10953 | |
10954 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10955 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10956 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) |
10957 | goto nla_put_failure; |
10958 | |
10959 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); |
10960 | if (!pinfoattr) |
10961 | goto nla_put_failure; |
10962 | |
10963 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) |
10964 | goto nla_put_failure; |
10965 | |
10966 | nla_nest_end(msg, pinfoattr); |
10967 | |
10968 | genlmsg_end(msg, hdr); |
10969 | |
10970 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
10971 | NL80211_MCGRP_MLME, gfp); |
10972 | return; |
10973 | |
10974 | nla_put_failure: |
10975 | genlmsg_cancel(msg, hdr); |
10976 | nlmsg_free(msg); |
10977 | } |
10978 | EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); |
10979 | |
10980 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
10981 | u64 cookie, bool acked, gfp_t gfp) |
10982 | { |
10983 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10984 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
10985 | struct sk_buff *msg; |
10986 | void *hdr; |
10987 | |
10988 | trace_cfg80211_probe_status(dev, addr, cookie, acked); |
10989 | |
10990 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10991 | |
10992 | if (!msg) |
10993 | return; |
10994 | |
10995 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); |
10996 | if (!hdr) { |
10997 | nlmsg_free(msg); |
10998 | return; |
10999 | } |
11000 | |
11001 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11002 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
11003 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || |
11004 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || |
11005 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) |
11006 | goto nla_put_failure; |
11007 | |
11008 | genlmsg_end(msg, hdr); |
11009 | |
11010 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
11011 | NL80211_MCGRP_MLME, gfp); |
11012 | return; |
11013 | |
11014 | nla_put_failure: |
11015 | genlmsg_cancel(msg, hdr); |
11016 | nlmsg_free(msg); |
11017 | } |
11018 | EXPORT_SYMBOL(cfg80211_probe_status); |
11019 | |
11020 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
11021 | const u8 *frame, size_t len, |
11022 | int freq, int sig_dbm) |
11023 | { |
11024 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
11025 | struct sk_buff *msg; |
11026 | void *hdr; |
11027 | struct cfg80211_beacon_registration *reg; |
11028 | |
11029 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); |
11030 | |
11031 | spin_lock_bh(&rdev->beacon_registrations_lock); |
11032 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { |
11033 | msg = nlmsg_new(len + 100, GFP_ATOMIC); |
11034 | if (!msg) { |
11035 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
11036 | return; |
11037 | } |
11038 | |
11039 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
11040 | if (!hdr) |
11041 | goto nla_put_failure; |
11042 | |
11043 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11044 | (freq && |
11045 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || |
11046 | (sig_dbm && |
11047 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || |
11048 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) |
11049 | goto nla_put_failure; |
11050 | |
11051 | genlmsg_end(msg, hdr); |
11052 | |
11053 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid); |
11054 | } |
11055 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
11056 | return; |
11057 | |
11058 | nla_put_failure: |
11059 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
11060 | if (hdr) |
11061 | genlmsg_cancel(msg, hdr); |
11062 | nlmsg_free(msg); |
11063 | } |
11064 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); |
11065 | |
11066 | #ifdef CONFIG_PM |
11067 | void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, |
11068 | struct cfg80211_wowlan_wakeup *wakeup, |
11069 | gfp_t gfp) |
11070 | { |
11071 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
11072 | struct sk_buff *msg; |
11073 | void *hdr; |
11074 | int size = 200; |
11075 | |
11076 | trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup); |
11077 | |
11078 | if (wakeup) |
11079 | size += wakeup->packet_present_len; |
11080 | |
11081 | msg = nlmsg_new(size, gfp); |
11082 | if (!msg) |
11083 | return; |
11084 | |
11085 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN); |
11086 | if (!hdr) |
11087 | goto free_msg; |
11088 | |
11089 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11090 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
11091 | goto free_msg; |
11092 | |
11093 | if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
11094 | wdev->netdev->ifindex)) |
11095 | goto free_msg; |
11096 | |
11097 | if (wakeup) { |
11098 | struct nlattr *reasons; |
11099 | |
11100 | reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); |
11101 | if (!reasons) |
11102 | goto free_msg; |
11103 | |
11104 | if (wakeup->disconnect && |
11105 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) |
11106 | goto free_msg; |
11107 | if (wakeup->magic_pkt && |
11108 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) |
11109 | goto free_msg; |
11110 | if (wakeup->gtk_rekey_failure && |
11111 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) |
11112 | goto free_msg; |
11113 | if (wakeup->eap_identity_req && |
11114 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) |
11115 | goto free_msg; |
11116 | if (wakeup->four_way_handshake && |
11117 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) |
11118 | goto free_msg; |
11119 | if (wakeup->rfkill_release && |
11120 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)) |
11121 | goto free_msg; |
11122 | |
11123 | if (wakeup->pattern_idx >= 0 && |
11124 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
11125 | wakeup->pattern_idx)) |
11126 | goto free_msg; |
11127 | |
11128 | if (wakeup->tcp_match && |
11129 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH)) |
11130 | goto free_msg; |
11131 | |
11132 | if (wakeup->tcp_connlost && |
11133 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST)) |
11134 | goto free_msg; |
11135 | |
11136 | if (wakeup->tcp_nomoretokens && |
11137 | nla_put_flag(msg, |
11138 | NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS)) |
11139 | goto free_msg; |
11140 | |
11141 | if (wakeup->packet) { |
11142 | u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; |
11143 | u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; |
11144 | |
11145 | if (!wakeup->packet_80211) { |
11146 | pkt_attr = |
11147 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023; |
11148 | len_attr = |
11149 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN; |
11150 | } |
11151 | |
11152 | if (wakeup->packet_len && |
11153 | nla_put_u32(msg, len_attr, wakeup->packet_len)) |
11154 | goto free_msg; |
11155 | |
11156 | if (nla_put(msg, pkt_attr, wakeup->packet_present_len, |
11157 | wakeup->packet)) |
11158 | goto free_msg; |
11159 | } |
11160 | |
11161 | nla_nest_end(msg, reasons); |
11162 | } |
11163 | |
11164 | genlmsg_end(msg, hdr); |
11165 | |
11166 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
11167 | NL80211_MCGRP_MLME, gfp); |
11168 | return; |
11169 | |
11170 | free_msg: |
11171 | nlmsg_free(msg); |
11172 | } |
11173 | EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup); |
11174 | #endif |
11175 | |
11176 | void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, |
11177 | enum nl80211_tdls_operation oper, |
11178 | u16 reason_code, gfp_t gfp) |
11179 | { |
11180 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
11181 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
11182 | struct sk_buff *msg; |
11183 | void *hdr; |
11184 | |
11185 | trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper, |
11186 | reason_code); |
11187 | |
11188 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
11189 | if (!msg) |
11190 | return; |
11191 | |
11192 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER); |
11193 | if (!hdr) { |
11194 | nlmsg_free(msg); |
11195 | return; |
11196 | } |
11197 | |
11198 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11199 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
11200 | nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) || |
11201 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) || |
11202 | (reason_code > 0 && |
11203 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) |
11204 | goto nla_put_failure; |
11205 | |
11206 | genlmsg_end(msg, hdr); |
11207 | |
11208 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
11209 | NL80211_MCGRP_MLME, gfp); |
11210 | return; |
11211 | |
11212 | nla_put_failure: |
11213 | genlmsg_cancel(msg, hdr); |
11214 | nlmsg_free(msg); |
11215 | } |
11216 | EXPORT_SYMBOL(cfg80211_tdls_oper_request); |
11217 | |
11218 | static int nl80211_netlink_notify(struct notifier_block * nb, |
11219 | unsigned long state, |
11220 | void *_notify) |
11221 | { |
11222 | struct netlink_notify *notify = _notify; |
11223 | struct cfg80211_registered_device *rdev; |
11224 | struct wireless_dev *wdev; |
11225 | struct cfg80211_beacon_registration *reg, *tmp; |
11226 | |
11227 | if (state != NETLINK_URELEASE) |
11228 | return NOTIFY_DONE; |
11229 | |
11230 | rcu_read_lock(); |
11231 | |
11232 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
11233 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) |
11234 | cfg80211_mlme_unregister_socket(wdev, notify->portid); |
11235 | |
11236 | spin_lock_bh(&rdev->beacon_registrations_lock); |
11237 | list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, |
11238 | list) { |
11239 | if (reg->nlportid == notify->portid) { |
11240 | list_del(®->list); |
11241 | kfree(reg); |
11242 | break; |
11243 | } |
11244 | } |
11245 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
11246 | } |
11247 | |
11248 | rcu_read_unlock(); |
11249 | |
11250 | return NOTIFY_DONE; |
11251 | } |
11252 | |
11253 | static struct notifier_block nl80211_netlink_notifier = { |
11254 | .notifier_call = nl80211_netlink_notify, |
11255 | }; |
11256 | |
11257 | void cfg80211_ft_event(struct net_device *netdev, |
11258 | struct cfg80211_ft_event_params *ft_event) |
11259 | { |
11260 | struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; |
11261 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
11262 | struct sk_buff *msg; |
11263 | void *hdr; |
11264 | |
11265 | trace_cfg80211_ft_event(wiphy, netdev, ft_event); |
11266 | |
11267 | if (!ft_event->target_ap) |
11268 | return; |
11269 | |
11270 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
11271 | if (!msg) |
11272 | return; |
11273 | |
11274 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT); |
11275 | if (!hdr) |
11276 | goto out; |
11277 | |
11278 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11279 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
11280 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap)) |
11281 | goto out; |
11282 | |
11283 | if (ft_event->ies && |
11284 | nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies)) |
11285 | goto out; |
11286 | if (ft_event->ric_ies && |
11287 | nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len, |
11288 | ft_event->ric_ies)) |
11289 | goto out; |
11290 | |
11291 | genlmsg_end(msg, hdr); |
11292 | |
11293 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
11294 | NL80211_MCGRP_MLME, GFP_KERNEL); |
11295 | return; |
11296 | out: |
11297 | nlmsg_free(msg); |
11298 | } |
11299 | EXPORT_SYMBOL(cfg80211_ft_event); |
11300 | |
11301 | void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) |
11302 | { |
11303 | struct cfg80211_registered_device *rdev; |
11304 | struct sk_buff *msg; |
11305 | void *hdr; |
11306 | u32 nlportid; |
11307 | |
11308 | rdev = wiphy_to_dev(wdev->wiphy); |
11309 | if (!rdev->crit_proto_nlportid) |
11310 | return; |
11311 | |
11312 | nlportid = rdev->crit_proto_nlportid; |
11313 | rdev->crit_proto_nlportid = 0; |
11314 | |
11315 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
11316 | if (!msg) |
11317 | return; |
11318 | |
11319 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP); |
11320 | if (!hdr) |
11321 | goto nla_put_failure; |
11322 | |
11323 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11324 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
11325 | goto nla_put_failure; |
11326 | |
11327 | genlmsg_end(msg, hdr); |
11328 | |
11329 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
11330 | return; |
11331 | |
11332 | nla_put_failure: |
11333 | if (hdr) |
11334 | genlmsg_cancel(msg, hdr); |
11335 | nlmsg_free(msg); |
11336 | |
11337 | } |
11338 | EXPORT_SYMBOL(cfg80211_crit_proto_stopped); |
11339 | |
11340 | /* initialisation/exit functions */ |
11341 | |
11342 | int nl80211_init(void) |
11343 | { |
11344 | int err; |
11345 | |
11346 | err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops, |
11347 | nl80211_mcgrps); |
11348 | if (err) |
11349 | return err; |
11350 | |
11351 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
11352 | if (err) |
11353 | goto err_out; |
11354 | |
11355 | return 0; |
11356 | err_out: |
11357 | genl_unregister_family(&nl80211_fam); |
11358 | return err; |
11359 | } |
11360 | |
11361 | void nl80211_exit(void) |
11362 | { |
11363 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
11364 | genl_unregister_family(&nl80211_fam); |
11365 | } |
11366 |
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