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1 | /* | |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> | |
5 | * Copyright 2013-2014 Intel Mobile Communications GmbH | |
6 | */ | |
7 | ||
8 | #include <linux/if.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/err.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/list.h> | |
13 | #include <linux/if_ether.h> | |
14 | #include <linux/ieee80211.h> | |
15 | #include <linux/nl80211.h> | |
16 | #include <linux/rtnetlink.h> | |
17 | #include <linux/netlink.h> | |
18 | #include <linux/etherdevice.h> | |
19 | #include <net/net_namespace.h> | |
20 | #include <net/genetlink.h> | |
21 | #include <net/cfg80211.h> | |
22 | #include <net/sock.h> | |
23 | #include <net/inet_connection_sock.h> | |
24 | #include "core.h" | |
25 | #include "nl80211.h" | |
26 | #include "reg.h" | |
27 | #include "rdev-ops.h" | |
28 | ||
29 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, | |
30 | struct genl_info *info, | |
31 | struct cfg80211_crypto_settings *settings, | |
32 | int cipher_limit); | |
33 | ||
34 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, | |
35 | struct genl_info *info); | |
36 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, | |
37 | struct genl_info *info); | |
38 | ||
39 | /* the netlink family */ | |
40 | static struct genl_family nl80211_fam = { | |
41 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
42 | .name = NL80211_GENL_NAME, /* have users key off the name instead */ | |
43 | .hdrsize = 0, /* no private header */ | |
44 | .version = 1, /* no particular meaning now */ | |
45 | .maxattr = NL80211_ATTR_MAX, | |
46 | .netnsok = true, | |
47 | .pre_doit = nl80211_pre_doit, | |
48 | .post_doit = nl80211_post_doit, | |
49 | }; | |
50 | ||
51 | /* multicast groups */ | |
52 | enum nl80211_multicast_groups { | |
53 | NL80211_MCGRP_CONFIG, | |
54 | NL80211_MCGRP_SCAN, | |
55 | NL80211_MCGRP_REGULATORY, | |
56 | NL80211_MCGRP_MLME, | |
57 | NL80211_MCGRP_VENDOR, | |
58 | NL80211_MCGRP_TESTMODE /* keep last - ifdef! */ | |
59 | }; | |
60 | ||
61 | static const struct genl_multicast_group nl80211_mcgrps[] = { | |
62 | [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG }, | |
63 | [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN }, | |
64 | [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG }, | |
65 | [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME }, | |
66 | [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR }, | |
67 | #ifdef CONFIG_NL80211_TESTMODE | |
68 | [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE } | |
69 | #endif | |
70 | }; | |
71 | ||
72 | /* returns ERR_PTR values */ | |
73 | static struct wireless_dev * | |
74 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
75 | { | |
76 | struct cfg80211_registered_device *rdev; | |
77 | struct wireless_dev *result = NULL; | |
78 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; | |
79 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; | |
80 | u64 wdev_id; | |
81 | int wiphy_idx = -1; | |
82 | int ifidx = -1; | |
83 | ||
84 | ASSERT_RTNL(); | |
85 | ||
86 | if (!have_ifidx && !have_wdev_id) | |
87 | return ERR_PTR(-EINVAL); | |
88 | ||
89 | if (have_ifidx) | |
90 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
91 | if (have_wdev_id) { | |
92 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
93 | wiphy_idx = wdev_id >> 32; | |
94 | } | |
95 | ||
96 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
97 | struct wireless_dev *wdev; | |
98 | ||
99 | if (wiphy_net(&rdev->wiphy) != netns) | |
100 | continue; | |
101 | ||
102 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) | |
103 | continue; | |
104 | ||
105 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
106 | if (have_ifidx && wdev->netdev && | |
107 | wdev->netdev->ifindex == ifidx) { | |
108 | result = wdev; | |
109 | break; | |
110 | } | |
111 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { | |
112 | result = wdev; | |
113 | break; | |
114 | } | |
115 | } | |
116 | ||
117 | if (result) | |
118 | break; | |
119 | } | |
120 | ||
121 | if (result) | |
122 | return result; | |
123 | return ERR_PTR(-ENODEV); | |
124 | } | |
125 | ||
126 | static struct cfg80211_registered_device * | |
127 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
128 | { | |
129 | struct cfg80211_registered_device *rdev = NULL, *tmp; | |
130 | struct net_device *netdev; | |
131 | ||
132 | ASSERT_RTNL(); | |
133 | ||
134 | if (!attrs[NL80211_ATTR_WIPHY] && | |
135 | !attrs[NL80211_ATTR_IFINDEX] && | |
136 | !attrs[NL80211_ATTR_WDEV]) | |
137 | return ERR_PTR(-EINVAL); | |
138 | ||
139 | if (attrs[NL80211_ATTR_WIPHY]) | |
140 | rdev = cfg80211_rdev_by_wiphy_idx( | |
141 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); | |
142 | ||
143 | if (attrs[NL80211_ATTR_WDEV]) { | |
144 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
145 | struct wireless_dev *wdev; | |
146 | bool found = false; | |
147 | ||
148 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
149 | if (tmp) { | |
150 | /* make sure wdev exists */ | |
151 | list_for_each_entry(wdev, &tmp->wdev_list, list) { | |
152 | if (wdev->identifier != (u32)wdev_id) | |
153 | continue; | |
154 | found = true; | |
155 | break; | |
156 | } | |
157 | ||
158 | if (!found) | |
159 | tmp = NULL; | |
160 | ||
161 | if (rdev && tmp != rdev) | |
162 | return ERR_PTR(-EINVAL); | |
163 | rdev = tmp; | |
164 | } | |
165 | } | |
166 | ||
167 | if (attrs[NL80211_ATTR_IFINDEX]) { | |
168 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
169 | netdev = __dev_get_by_index(netns, ifindex); | |
170 | if (netdev) { | |
171 | if (netdev->ieee80211_ptr) | |
172 | tmp = wiphy_to_rdev( | |
173 | netdev->ieee80211_ptr->wiphy); | |
174 | else | |
175 | tmp = NULL; | |
176 | ||
177 | /* not wireless device -- return error */ | |
178 | if (!tmp) | |
179 | return ERR_PTR(-EINVAL); | |
180 | ||
181 | /* mismatch -- return error */ | |
182 | if (rdev && tmp != rdev) | |
183 | return ERR_PTR(-EINVAL); | |
184 | ||
185 | rdev = tmp; | |
186 | } | |
187 | } | |
188 | ||
189 | if (!rdev) | |
190 | return ERR_PTR(-ENODEV); | |
191 | ||
192 | if (netns != wiphy_net(&rdev->wiphy)) | |
193 | return ERR_PTR(-ENODEV); | |
194 | ||
195 | return rdev; | |
196 | } | |
197 | ||
198 | /* | |
199 | * This function returns a pointer to the driver | |
200 | * that the genl_info item that is passed refers to. | |
201 | * | |
202 | * The result of this can be a PTR_ERR and hence must | |
203 | * be checked with IS_ERR() for errors. | |
204 | */ | |
205 | static struct cfg80211_registered_device * | |
206 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) | |
207 | { | |
208 | return __cfg80211_rdev_from_attrs(netns, info->attrs); | |
209 | } | |
210 | ||
211 | /* policy for the attributes */ | |
212 | static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { | |
213 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
214 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
215 | .len = 20-1 }, | |
216 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, | |
217 | ||
218 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, | |
219 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, | |
220 | [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 }, | |
221 | [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 }, | |
222 | [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 }, | |
223 | ||
224 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, | |
225 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
226 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
227 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
228 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, | |
229 | [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG }, | |
230 | ||
231 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
232 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
233 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
234 | ||
235 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, | |
236 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
237 | ||
238 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, | |
239 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
240 | .len = WLAN_MAX_KEY_LEN }, | |
241 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
242 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
243 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
244 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, | |
245 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, | |
246 | ||
247 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
248 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
249 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
250 | .len = IEEE80211_MAX_DATA_LEN }, | |
251 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
252 | .len = IEEE80211_MAX_DATA_LEN }, | |
253 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, | |
254 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
255 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
256 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
257 | .len = NL80211_MAX_SUPP_RATES }, | |
258 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, | |
259 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, | |
260 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, | |
261 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, | |
262 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
263 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
264 | ||
265 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, | |
266 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
267 | ||
268 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, | |
269 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
270 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
271 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, | |
272 | .len = NL80211_MAX_SUPP_RATES }, | |
273 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, | |
274 | ||
275 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, | |
276 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, | |
277 | ||
278 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, | |
279 | ||
280 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
281 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
282 | .len = IEEE80211_MAX_DATA_LEN }, | |
283 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, | |
284 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
285 | ||
286 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
287 | .len = IEEE80211_MAX_SSID_LEN }, | |
288 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
289 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
290 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, | |
291 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, | |
292 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, | |
293 | [NL80211_ATTR_STA_FLAGS2] = { | |
294 | .len = sizeof(struct nl80211_sta_flag_update), | |
295 | }, | |
296 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, | |
297 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, | |
298 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
299 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, | |
300 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
301 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
302 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, | |
303 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, | |
304 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, | |
305 | .len = WLAN_PMKID_LEN }, | |
306 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, | |
307 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
308 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, | |
309 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, | |
310 | .len = IEEE80211_MAX_DATA_LEN }, | |
311 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
312 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, | |
313 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, | |
314 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, | |
315 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, | |
316 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, | |
317 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
318 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, | |
319 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, | |
320 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
321 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, | |
322 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, | |
323 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, | |
324 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, | |
325 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, | |
326 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, | |
327 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, | |
328 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, | |
329 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, | |
330 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, | |
331 | .len = IEEE80211_MAX_DATA_LEN }, | |
332 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
333 | .len = IEEE80211_MAX_DATA_LEN }, | |
334 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, | |
335 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, | |
336 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, | |
337 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, | |
338 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
339 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
340 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
341 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
342 | [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG }, | |
343 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, | |
344 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, | |
345 | .len = IEEE80211_MAX_DATA_LEN }, | |
346 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, | |
347 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, | |
348 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
349 | .len = NL80211_HT_CAPABILITY_LEN | |
350 | }, | |
351 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, | |
352 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, | |
353 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, | |
354 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, | |
355 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, | |
356 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, | |
357 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, | |
358 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, | |
359 | [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 }, | |
360 | [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 }, | |
361 | [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, | |
362 | [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, | |
363 | [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 }, | |
364 | [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, }, | |
365 | [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, }, | |
366 | [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG }, | |
367 | [NL80211_ATTR_VHT_CAPABILITY_MASK] = { | |
368 | .len = NL80211_VHT_CAPABILITY_LEN, | |
369 | }, | |
370 | [NL80211_ATTR_MDID] = { .type = NLA_U16 }, | |
371 | [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY, | |
372 | .len = IEEE80211_MAX_DATA_LEN }, | |
373 | [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 }, | |
374 | [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, | |
375 | [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, | |
376 | [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED }, | |
377 | [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY }, | |
378 | [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY }, | |
379 | [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY }, | |
380 | [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY }, | |
381 | [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG }, | |
382 | [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 }, | |
383 | [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 }, | |
384 | [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 }, | |
385 | [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY }, | |
386 | [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY, | |
387 | .len = IEEE80211_QOS_MAP_LEN_MAX }, | |
388 | [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN }, | |
389 | [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 }, | |
390 | [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 }, | |
391 | [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG }, | |
392 | [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY }, | |
393 | [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG }, | |
394 | [NL80211_ATTR_TSID] = { .type = NLA_U8 }, | |
395 | [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 }, | |
396 | [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 }, | |
397 | [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 }, | |
398 | [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN }, | |
399 | [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG }, | |
400 | [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
401 | [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 }, | |
402 | }; | |
403 | ||
404 | /* policy for the key attributes */ | |
405 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { | |
406 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, | |
407 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, | |
408 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
409 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, | |
410 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
411 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
412 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, | |
413 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, | |
414 | }; | |
415 | ||
416 | /* policy for the key default flags */ | |
417 | static const struct nla_policy | |
418 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
419 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
420 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
421 | }; | |
422 | ||
423 | /* policy for WoWLAN attributes */ | |
424 | static const struct nla_policy | |
425 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
426 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
427 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
428 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
429 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
430 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, | |
431 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
432 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
433 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
434 | [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, | |
435 | [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED }, | |
436 | }; | |
437 | ||
438 | static const struct nla_policy | |
439 | nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { | |
440 | [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, | |
441 | [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, | |
442 | [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN }, | |
443 | [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, | |
444 | [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, | |
445 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 }, | |
446 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { | |
447 | .len = sizeof(struct nl80211_wowlan_tcp_data_seq) | |
448 | }, | |
449 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { | |
450 | .len = sizeof(struct nl80211_wowlan_tcp_data_token) | |
451 | }, | |
452 | [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, | |
453 | [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 }, | |
454 | [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 }, | |
455 | }; | |
456 | ||
457 | /* policy for coalesce rule attributes */ | |
458 | static const struct nla_policy | |
459 | nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = { | |
460 | [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 }, | |
461 | [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 }, | |
462 | [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED }, | |
463 | }; | |
464 | ||
465 | /* policy for GTK rekey offload attributes */ | |
466 | static const struct nla_policy | |
467 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
468 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
469 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
470 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
471 | }; | |
472 | ||
473 | static const struct nla_policy | |
474 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
475 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, | |
476 | .len = IEEE80211_MAX_SSID_LEN }, | |
477 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, | |
478 | }; | |
479 | ||
480 | static int nl80211_prepare_wdev_dump(struct sk_buff *skb, | |
481 | struct netlink_callback *cb, | |
482 | struct cfg80211_registered_device **rdev, | |
483 | struct wireless_dev **wdev) | |
484 | { | |
485 | int err; | |
486 | ||
487 | rtnl_lock(); | |
488 | ||
489 | if (!cb->args[0]) { | |
490 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
491 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
492 | nl80211_policy); | |
493 | if (err) | |
494 | goto out_unlock; | |
495 | ||
496 | *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), | |
497 | nl80211_fam.attrbuf); | |
498 | if (IS_ERR(*wdev)) { | |
499 | err = PTR_ERR(*wdev); | |
500 | goto out_unlock; | |
501 | } | |
502 | *rdev = wiphy_to_rdev((*wdev)->wiphy); | |
503 | /* 0 is the first index - add 1 to parse only once */ | |
504 | cb->args[0] = (*rdev)->wiphy_idx + 1; | |
505 | cb->args[1] = (*wdev)->identifier; | |
506 | } else { | |
507 | /* subtract the 1 again here */ | |
508 | struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); | |
509 | struct wireless_dev *tmp; | |
510 | ||
511 | if (!wiphy) { | |
512 | err = -ENODEV; | |
513 | goto out_unlock; | |
514 | } | |
515 | *rdev = wiphy_to_rdev(wiphy); | |
516 | *wdev = NULL; | |
517 | ||
518 | list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { | |
519 | if (tmp->identifier == cb->args[1]) { | |
520 | *wdev = tmp; | |
521 | break; | |
522 | } | |
523 | } | |
524 | ||
525 | if (!*wdev) { | |
526 | err = -ENODEV; | |
527 | goto out_unlock; | |
528 | } | |
529 | } | |
530 | ||
531 | return 0; | |
532 | out_unlock: | |
533 | rtnl_unlock(); | |
534 | return err; | |
535 | } | |
536 | ||
537 | static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev) | |
538 | { | |
539 | rtnl_unlock(); | |
540 | } | |
541 | ||
542 | /* IE validation */ | |
543 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
544 | { | |
545 | const u8 *pos; | |
546 | int len; | |
547 | ||
548 | if (!attr) | |
549 | return true; | |
550 | ||
551 | pos = nla_data(attr); | |
552 | len = nla_len(attr); | |
553 | ||
554 | while (len) { | |
555 | u8 elemlen; | |
556 | ||
557 | if (len < 2) | |
558 | return false; | |
559 | len -= 2; | |
560 | ||
561 | elemlen = pos[1]; | |
562 | if (elemlen > len) | |
563 | return false; | |
564 | ||
565 | len -= elemlen; | |
566 | pos += 2 + elemlen; | |
567 | } | |
568 | ||
569 | return true; | |
570 | } | |
571 | ||
572 | /* message building helper */ | |
573 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, | |
574 | int flags, u8 cmd) | |
575 | { | |
576 | /* since there is no private header just add the generic one */ | |
577 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); | |
578 | } | |
579 | ||
580 | static int nl80211_msg_put_channel(struct sk_buff *msg, | |
581 | struct ieee80211_channel *chan, | |
582 | bool large) | |
583 | { | |
584 | /* Some channels must be completely excluded from the | |
585 | * list to protect old user-space tools from breaking | |
586 | */ | |
587 | if (!large && chan->flags & | |
588 | (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ)) | |
589 | return 0; | |
590 | ||
591 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
592 | chan->center_freq)) | |
593 | goto nla_put_failure; | |
594 | ||
595 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && | |
596 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
597 | goto nla_put_failure; | |
598 | if (chan->flags & IEEE80211_CHAN_NO_IR) { | |
599 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR)) | |
600 | goto nla_put_failure; | |
601 | if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
602 | goto nla_put_failure; | |
603 | } | |
604 | if (chan->flags & IEEE80211_CHAN_RADAR) { | |
605 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
606 | goto nla_put_failure; | |
607 | if (large) { | |
608 | u32 time; | |
609 | ||
610 | time = elapsed_jiffies_msecs(chan->dfs_state_entered); | |
611 | ||
612 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE, | |
613 | chan->dfs_state)) | |
614 | goto nla_put_failure; | |
615 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, | |
616 | time)) | |
617 | goto nla_put_failure; | |
618 | if (nla_put_u32(msg, | |
619 | NL80211_FREQUENCY_ATTR_DFS_CAC_TIME, | |
620 | chan->dfs_cac_ms)) | |
621 | goto nla_put_failure; | |
622 | } | |
623 | } | |
624 | ||
625 | if (large) { | |
626 | if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) && | |
627 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS)) | |
628 | goto nla_put_failure; | |
629 | if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) && | |
630 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS)) | |
631 | goto nla_put_failure; | |
632 | if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) && | |
633 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ)) | |
634 | goto nla_put_failure; | |
635 | if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && | |
636 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) | |
637 | goto nla_put_failure; | |
638 | if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) && | |
639 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY)) | |
640 | goto nla_put_failure; | |
641 | if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) && | |
642 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT)) | |
643 | goto nla_put_failure; | |
644 | if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) && | |
645 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ)) | |
646 | goto nla_put_failure; | |
647 | if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) && | |
648 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ)) | |
649 | goto nla_put_failure; | |
650 | } | |
651 | ||
652 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
653 | DBM_TO_MBM(chan->max_power))) | |
654 | goto nla_put_failure; | |
655 | ||
656 | return 0; | |
657 | ||
658 | nla_put_failure: | |
659 | return -ENOBUFS; | |
660 | } | |
661 | ||
662 | /* netlink command implementations */ | |
663 | ||
664 | struct key_parse { | |
665 | struct key_params p; | |
666 | int idx; | |
667 | int type; | |
668 | bool def, defmgmt; | |
669 | bool def_uni, def_multi; | |
670 | }; | |
671 | ||
672 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
673 | { | |
674 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
675 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
676 | nl80211_key_policy); | |
677 | if (err) | |
678 | return err; | |
679 | ||
680 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
681 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
682 | ||
683 | if (k->def) { | |
684 | k->def_uni = true; | |
685 | k->def_multi = true; | |
686 | } | |
687 | if (k->defmgmt) | |
688 | k->def_multi = true; | |
689 | ||
690 | if (tb[NL80211_KEY_IDX]) | |
691 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
692 | ||
693 | if (tb[NL80211_KEY_DATA]) { | |
694 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
695 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
696 | } | |
697 | ||
698 | if (tb[NL80211_KEY_SEQ]) { | |
699 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
700 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
701 | } | |
702 | ||
703 | if (tb[NL80211_KEY_CIPHER]) | |
704 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
705 | ||
706 | if (tb[NL80211_KEY_TYPE]) { | |
707 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
708 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
709 | return -EINVAL; | |
710 | } | |
711 | ||
712 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { | |
713 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
714 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
715 | tb[NL80211_KEY_DEFAULT_TYPES], | |
716 | nl80211_key_default_policy); | |
717 | if (err) | |
718 | return err; | |
719 | ||
720 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
721 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
722 | } | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
727 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
728 | { | |
729 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
730 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
731 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
732 | } | |
733 | ||
734 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
735 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
736 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
737 | } | |
738 | ||
739 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
740 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
741 | ||
742 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
743 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
744 | ||
745 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
746 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
747 | ||
748 | if (k->def) { | |
749 | k->def_uni = true; | |
750 | k->def_multi = true; | |
751 | } | |
752 | if (k->defmgmt) | |
753 | k->def_multi = true; | |
754 | ||
755 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
756 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
757 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
758 | return -EINVAL; | |
759 | } | |
760 | ||
761 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { | |
762 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
763 | int err = nla_parse_nested( | |
764 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
765 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
766 | nl80211_key_default_policy); | |
767 | if (err) | |
768 | return err; | |
769 | ||
770 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
771 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
772 | } | |
773 | ||
774 | return 0; | |
775 | } | |
776 | ||
777 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
778 | { | |
779 | int err; | |
780 | ||
781 | memset(k, 0, sizeof(*k)); | |
782 | k->idx = -1; | |
783 | k->type = -1; | |
784 | ||
785 | if (info->attrs[NL80211_ATTR_KEY]) | |
786 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
787 | else | |
788 | err = nl80211_parse_key_old(info, k); | |
789 | ||
790 | if (err) | |
791 | return err; | |
792 | ||
793 | if (k->def && k->defmgmt) | |
794 | return -EINVAL; | |
795 | ||
796 | if (k->defmgmt) { | |
797 | if (k->def_uni || !k->def_multi) | |
798 | return -EINVAL; | |
799 | } | |
800 | ||
801 | if (k->idx != -1) { | |
802 | if (k->defmgmt) { | |
803 | if (k->idx < 4 || k->idx > 5) | |
804 | return -EINVAL; | |
805 | } else if (k->def) { | |
806 | if (k->idx < 0 || k->idx > 3) | |
807 | return -EINVAL; | |
808 | } else { | |
809 | if (k->idx < 0 || k->idx > 5) | |
810 | return -EINVAL; | |
811 | } | |
812 | } | |
813 | ||
814 | return 0; | |
815 | } | |
816 | ||
817 | static struct cfg80211_cached_keys * | |
818 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
819 | struct nlattr *keys, bool *no_ht) | |
820 | { | |
821 | struct key_parse parse; | |
822 | struct nlattr *key; | |
823 | struct cfg80211_cached_keys *result; | |
824 | int rem, err, def = 0; | |
825 | ||
826 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
827 | if (!result) | |
828 | return ERR_PTR(-ENOMEM); | |
829 | ||
830 | result->def = -1; | |
831 | result->defmgmt = -1; | |
832 | ||
833 | nla_for_each_nested(key, keys, rem) { | |
834 | memset(&parse, 0, sizeof(parse)); | |
835 | parse.idx = -1; | |
836 | ||
837 | err = nl80211_parse_key_new(key, &parse); | |
838 | if (err) | |
839 | goto error; | |
840 | err = -EINVAL; | |
841 | if (!parse.p.key) | |
842 | goto error; | |
843 | if (parse.idx < 0 || parse.idx > 4) | |
844 | goto error; | |
845 | if (parse.def) { | |
846 | if (def) | |
847 | goto error; | |
848 | def = 1; | |
849 | result->def = parse.idx; | |
850 | if (!parse.def_uni || !parse.def_multi) | |
851 | goto error; | |
852 | } else if (parse.defmgmt) | |
853 | goto error; | |
854 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
855 | parse.idx, false, NULL); | |
856 | if (err) | |
857 | goto error; | |
858 | result->params[parse.idx].cipher = parse.p.cipher; | |
859 | result->params[parse.idx].key_len = parse.p.key_len; | |
860 | result->params[parse.idx].key = result->data[parse.idx]; | |
861 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
862 | ||
863 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
864 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
865 | if (no_ht) | |
866 | *no_ht = true; | |
867 | } | |
868 | } | |
869 | ||
870 | return result; | |
871 | error: | |
872 | kfree(result); | |
873 | return ERR_PTR(err); | |
874 | } | |
875 | ||
876 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
877 | { | |
878 | ASSERT_WDEV_LOCK(wdev); | |
879 | ||
880 | switch (wdev->iftype) { | |
881 | case NL80211_IFTYPE_AP: | |
882 | case NL80211_IFTYPE_AP_VLAN: | |
883 | case NL80211_IFTYPE_P2P_GO: | |
884 | case NL80211_IFTYPE_MESH_POINT: | |
885 | break; | |
886 | case NL80211_IFTYPE_ADHOC: | |
887 | case NL80211_IFTYPE_STATION: | |
888 | case NL80211_IFTYPE_P2P_CLIENT: | |
889 | if (!wdev->current_bss) | |
890 | return -ENOLINK; | |
891 | break; | |
892 | case NL80211_IFTYPE_UNSPECIFIED: | |
893 | case NL80211_IFTYPE_OCB: | |
894 | case NL80211_IFTYPE_MONITOR: | |
895 | case NL80211_IFTYPE_P2P_DEVICE: | |
896 | case NL80211_IFTYPE_WDS: | |
897 | case NUM_NL80211_IFTYPES: | |
898 | return -EINVAL; | |
899 | } | |
900 | ||
901 | return 0; | |
902 | } | |
903 | ||
904 | static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy, | |
905 | struct nlattr *tb) | |
906 | { | |
907 | struct ieee80211_channel *chan; | |
908 | ||
909 | if (tb == NULL) | |
910 | return NULL; | |
911 | chan = ieee80211_get_channel(wiphy, nla_get_u32(tb)); | |
912 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
913 | return NULL; | |
914 | return chan; | |
915 | } | |
916 | ||
917 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) | |
918 | { | |
919 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
920 | int i; | |
921 | ||
922 | if (!nl_modes) | |
923 | goto nla_put_failure; | |
924 | ||
925 | i = 0; | |
926 | while (ifmodes) { | |
927 | if ((ifmodes & 1) && nla_put_flag(msg, i)) | |
928 | goto nla_put_failure; | |
929 | ifmodes >>= 1; | |
930 | i++; | |
931 | } | |
932 | ||
933 | nla_nest_end(msg, nl_modes); | |
934 | return 0; | |
935 | ||
936 | nla_put_failure: | |
937 | return -ENOBUFS; | |
938 | } | |
939 | ||
940 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
941 | struct sk_buff *msg, | |
942 | bool large) | |
943 | { | |
944 | struct nlattr *nl_combis; | |
945 | int i, j; | |
946 | ||
947 | nl_combis = nla_nest_start(msg, | |
948 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
949 | if (!nl_combis) | |
950 | goto nla_put_failure; | |
951 | ||
952 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
953 | const struct ieee80211_iface_combination *c; | |
954 | struct nlattr *nl_combi, *nl_limits; | |
955 | ||
956 | c = &wiphy->iface_combinations[i]; | |
957 | ||
958 | nl_combi = nla_nest_start(msg, i + 1); | |
959 | if (!nl_combi) | |
960 | goto nla_put_failure; | |
961 | ||
962 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
963 | if (!nl_limits) | |
964 | goto nla_put_failure; | |
965 | ||
966 | for (j = 0; j < c->n_limits; j++) { | |
967 | struct nlattr *nl_limit; | |
968 | ||
969 | nl_limit = nla_nest_start(msg, j + 1); | |
970 | if (!nl_limit) | |
971 | goto nla_put_failure; | |
972 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, | |
973 | c->limits[j].max)) | |
974 | goto nla_put_failure; | |
975 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, | |
976 | c->limits[j].types)) | |
977 | goto nla_put_failure; | |
978 | nla_nest_end(msg, nl_limit); | |
979 | } | |
980 | ||
981 | nla_nest_end(msg, nl_limits); | |
982 | ||
983 | if (c->beacon_int_infra_match && | |
984 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
985 | goto nla_put_failure; | |
986 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
987 | c->num_different_channels) || | |
988 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
989 | c->max_interfaces)) | |
990 | goto nla_put_failure; | |
991 | if (large && | |
992 | (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, | |
993 | c->radar_detect_widths) || | |
994 | nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS, | |
995 | c->radar_detect_regions))) | |
996 | goto nla_put_failure; | |
997 | ||
998 | nla_nest_end(msg, nl_combi); | |
999 | } | |
1000 | ||
1001 | nla_nest_end(msg, nl_combis); | |
1002 | ||
1003 | return 0; | |
1004 | nla_put_failure: | |
1005 | return -ENOBUFS; | |
1006 | } | |
1007 | ||
1008 | #ifdef CONFIG_PM | |
1009 | static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, | |
1010 | struct sk_buff *msg) | |
1011 | { | |
1012 | const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp; | |
1013 | struct nlattr *nl_tcp; | |
1014 | ||
1015 | if (!tcp) | |
1016 | return 0; | |
1017 | ||
1018 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
1019 | if (!nl_tcp) | |
1020 | return -ENOBUFS; | |
1021 | ||
1022 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
1023 | tcp->data_payload_max)) | |
1024 | return -ENOBUFS; | |
1025 | ||
1026 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
1027 | tcp->data_payload_max)) | |
1028 | return -ENOBUFS; | |
1029 | ||
1030 | if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) | |
1031 | return -ENOBUFS; | |
1032 | ||
1033 | if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
1034 | sizeof(*tcp->tok), tcp->tok)) | |
1035 | return -ENOBUFS; | |
1036 | ||
1037 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
1038 | tcp->data_interval_max)) | |
1039 | return -ENOBUFS; | |
1040 | ||
1041 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
1042 | tcp->wake_payload_max)) | |
1043 | return -ENOBUFS; | |
1044 | ||
1045 | nla_nest_end(msg, nl_tcp); | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | static int nl80211_send_wowlan(struct sk_buff *msg, | |
1050 | struct cfg80211_registered_device *rdev, | |
1051 | bool large) | |
1052 | { | |
1053 | struct nlattr *nl_wowlan; | |
1054 | ||
1055 | if (!rdev->wiphy.wowlan) | |
1056 | return 0; | |
1057 | ||
1058 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); | |
1059 | if (!nl_wowlan) | |
1060 | return -ENOBUFS; | |
1061 | ||
1062 | if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && | |
1063 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
1064 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && | |
1065 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
1066 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && | |
1067 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
1068 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && | |
1069 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || | |
1070 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && | |
1071 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
1072 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && | |
1073 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
1074 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && | |
1075 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
1076 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && | |
1077 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
1078 | return -ENOBUFS; | |
1079 | ||
1080 | if (rdev->wiphy.wowlan->n_patterns) { | |
1081 | struct nl80211_pattern_support pat = { | |
1082 | .max_patterns = rdev->wiphy.wowlan->n_patterns, | |
1083 | .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len, | |
1084 | .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len, | |
1085 | .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset, | |
1086 | }; | |
1087 | ||
1088 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
1089 | sizeof(pat), &pat)) | |
1090 | return -ENOBUFS; | |
1091 | } | |
1092 | ||
1093 | if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) && | |
1094 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT, | |
1095 | rdev->wiphy.wowlan->max_nd_match_sets)) | |
1096 | return -ENOBUFS; | |
1097 | ||
1098 | if (large && nl80211_send_wowlan_tcp_caps(rdev, msg)) | |
1099 | return -ENOBUFS; | |
1100 | ||
1101 | /* TODO: send wowlan net detect */ | |
1102 | ||
1103 | nla_nest_end(msg, nl_wowlan); | |
1104 | ||
1105 | return 0; | |
1106 | } | |
1107 | #endif | |
1108 | ||
1109 | static int nl80211_send_coalesce(struct sk_buff *msg, | |
1110 | struct cfg80211_registered_device *rdev) | |
1111 | { | |
1112 | struct nl80211_coalesce_rule_support rule; | |
1113 | ||
1114 | if (!rdev->wiphy.coalesce) | |
1115 | return 0; | |
1116 | ||
1117 | rule.max_rules = rdev->wiphy.coalesce->n_rules; | |
1118 | rule.max_delay = rdev->wiphy.coalesce->max_delay; | |
1119 | rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns; | |
1120 | rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len; | |
1121 | rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len; | |
1122 | rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset; | |
1123 | ||
1124 | if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule)) | |
1125 | return -ENOBUFS; | |
1126 | ||
1127 | return 0; | |
1128 | } | |
1129 | ||
1130 | static int nl80211_send_band_rateinfo(struct sk_buff *msg, | |
1131 | struct ieee80211_supported_band *sband) | |
1132 | { | |
1133 | struct nlattr *nl_rates, *nl_rate; | |
1134 | struct ieee80211_rate *rate; | |
1135 | int i; | |
1136 | ||
1137 | /* add HT info */ | |
1138 | if (sband->ht_cap.ht_supported && | |
1139 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
1140 | sizeof(sband->ht_cap.mcs), | |
1141 | &sband->ht_cap.mcs) || | |
1142 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
1143 | sband->ht_cap.cap) || | |
1144 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
1145 | sband->ht_cap.ampdu_factor) || | |
1146 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
1147 | sband->ht_cap.ampdu_density))) | |
1148 | return -ENOBUFS; | |
1149 | ||
1150 | /* add VHT info */ | |
1151 | if (sband->vht_cap.vht_supported && | |
1152 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
1153 | sizeof(sband->vht_cap.vht_mcs), | |
1154 | &sband->vht_cap.vht_mcs) || | |
1155 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
1156 | sband->vht_cap.cap))) | |
1157 | return -ENOBUFS; | |
1158 | ||
1159 | /* add bitrates */ | |
1160 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1161 | if (!nl_rates) | |
1162 | return -ENOBUFS; | |
1163 | ||
1164 | for (i = 0; i < sband->n_bitrates; i++) { | |
1165 | nl_rate = nla_nest_start(msg, i); | |
1166 | if (!nl_rate) | |
1167 | return -ENOBUFS; | |
1168 | ||
1169 | rate = &sband->bitrates[i]; | |
1170 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, | |
1171 | rate->bitrate)) | |
1172 | return -ENOBUFS; | |
1173 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1174 | nla_put_flag(msg, | |
1175 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1176 | return -ENOBUFS; | |
1177 | ||
1178 | nla_nest_end(msg, nl_rate); | |
1179 | } | |
1180 | ||
1181 | nla_nest_end(msg, nl_rates); | |
1182 | ||
1183 | return 0; | |
1184 | } | |
1185 | ||
1186 | static int | |
1187 | nl80211_send_mgmt_stypes(struct sk_buff *msg, | |
1188 | const struct ieee80211_txrx_stypes *mgmt_stypes) | |
1189 | { | |
1190 | u16 stypes; | |
1191 | struct nlattr *nl_ftypes, *nl_ifs; | |
1192 | enum nl80211_iftype ift; | |
1193 | int i; | |
1194 | ||
1195 | if (!mgmt_stypes) | |
1196 | return 0; | |
1197 | ||
1198 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
1199 | if (!nl_ifs) | |
1200 | return -ENOBUFS; | |
1201 | ||
1202 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1203 | nl_ftypes = nla_nest_start(msg, ift); | |
1204 | if (!nl_ftypes) | |
1205 | return -ENOBUFS; | |
1206 | i = 0; | |
1207 | stypes = mgmt_stypes[ift].tx; | |
1208 | while (stypes) { | |
1209 | if ((stypes & 1) && | |
1210 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1211 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1212 | return -ENOBUFS; | |
1213 | stypes >>= 1; | |
1214 | i++; | |
1215 | } | |
1216 | nla_nest_end(msg, nl_ftypes); | |
1217 | } | |
1218 | ||
1219 | nla_nest_end(msg, nl_ifs); | |
1220 | ||
1221 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); | |
1222 | if (!nl_ifs) | |
1223 | return -ENOBUFS; | |
1224 | ||
1225 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1226 | nl_ftypes = nla_nest_start(msg, ift); | |
1227 | if (!nl_ftypes) | |
1228 | return -ENOBUFS; | |
1229 | i = 0; | |
1230 | stypes = mgmt_stypes[ift].rx; | |
1231 | while (stypes) { | |
1232 | if ((stypes & 1) && | |
1233 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1234 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1235 | return -ENOBUFS; | |
1236 | stypes >>= 1; | |
1237 | i++; | |
1238 | } | |
1239 | nla_nest_end(msg, nl_ftypes); | |
1240 | } | |
1241 | nla_nest_end(msg, nl_ifs); | |
1242 | ||
1243 | return 0; | |
1244 | } | |
1245 | ||
1246 | struct nl80211_dump_wiphy_state { | |
1247 | s64 filter_wiphy; | |
1248 | long start; | |
1249 | long split_start, band_start, chan_start; | |
1250 | bool split; | |
1251 | }; | |
1252 | ||
1253 | static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, | |
1254 | enum nl80211_commands cmd, | |
1255 | struct sk_buff *msg, u32 portid, u32 seq, | |
1256 | int flags, struct nl80211_dump_wiphy_state *state) | |
1257 | { | |
1258 | void *hdr; | |
1259 | struct nlattr *nl_bands, *nl_band; | |
1260 | struct nlattr *nl_freqs, *nl_freq; | |
1261 | struct nlattr *nl_cmds; | |
1262 | enum ieee80211_band band; | |
1263 | struct ieee80211_channel *chan; | |
1264 | int i; | |
1265 | const struct ieee80211_txrx_stypes *mgmt_stypes = | |
1266 | rdev->wiphy.mgmt_stypes; | |
1267 | u32 features; | |
1268 | ||
1269 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
1270 | if (!hdr) | |
1271 | return -ENOBUFS; | |
1272 | ||
1273 | if (WARN_ON(!state)) | |
1274 | return -EINVAL; | |
1275 | ||
1276 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
1277 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, | |
1278 | wiphy_name(&rdev->wiphy)) || | |
1279 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
1280 | cfg80211_rdev_list_generation)) | |
1281 | goto nla_put_failure; | |
1282 | ||
1283 | if (cmd != NL80211_CMD_NEW_WIPHY) | |
1284 | goto finish; | |
1285 | ||
1286 | switch (state->split_start) { | |
1287 | case 0: | |
1288 | if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
1289 | rdev->wiphy.retry_short) || | |
1290 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
1291 | rdev->wiphy.retry_long) || | |
1292 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
1293 | rdev->wiphy.frag_threshold) || | |
1294 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
1295 | rdev->wiphy.rts_threshold) || | |
1296 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, | |
1297 | rdev->wiphy.coverage_class) || | |
1298 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, | |
1299 | rdev->wiphy.max_scan_ssids) || | |
1300 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, | |
1301 | rdev->wiphy.max_sched_scan_ssids) || | |
1302 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, | |
1303 | rdev->wiphy.max_scan_ie_len) || | |
1304 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, | |
1305 | rdev->wiphy.max_sched_scan_ie_len) || | |
1306 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, | |
1307 | rdev->wiphy.max_match_sets)) | |
1308 | goto nla_put_failure; | |
1309 | ||
1310 | if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && | |
1311 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) | |
1312 | goto nla_put_failure; | |
1313 | if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && | |
1314 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) | |
1315 | goto nla_put_failure; | |
1316 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
1317 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) | |
1318 | goto nla_put_failure; | |
1319 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && | |
1320 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) | |
1321 | goto nla_put_failure; | |
1322 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && | |
1323 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) | |
1324 | goto nla_put_failure; | |
1325 | if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && | |
1326 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) | |
1327 | goto nla_put_failure; | |
1328 | state->split_start++; | |
1329 | if (state->split) | |
1330 | break; | |
1331 | case 1: | |
1332 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
1333 | sizeof(u32) * rdev->wiphy.n_cipher_suites, | |
1334 | rdev->wiphy.cipher_suites)) | |
1335 | goto nla_put_failure; | |
1336 | ||
1337 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, | |
1338 | rdev->wiphy.max_num_pmkids)) | |
1339 | goto nla_put_failure; | |
1340 | ||
1341 | if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
1342 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) | |
1343 | goto nla_put_failure; | |
1344 | ||
1345 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, | |
1346 | rdev->wiphy.available_antennas_tx) || | |
1347 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, | |
1348 | rdev->wiphy.available_antennas_rx)) | |
1349 | goto nla_put_failure; | |
1350 | ||
1351 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && | |
1352 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, | |
1353 | rdev->wiphy.probe_resp_offload)) | |
1354 | goto nla_put_failure; | |
1355 | ||
1356 | if ((rdev->wiphy.available_antennas_tx || | |
1357 | rdev->wiphy.available_antennas_rx) && | |
1358 | rdev->ops->get_antenna) { | |
1359 | u32 tx_ant = 0, rx_ant = 0; | |
1360 | int res; | |
1361 | res = rdev_get_antenna(rdev, &tx_ant, &rx_ant); | |
1362 | if (!res) { | |
1363 | if (nla_put_u32(msg, | |
1364 | NL80211_ATTR_WIPHY_ANTENNA_TX, | |
1365 | tx_ant) || | |
1366 | nla_put_u32(msg, | |
1367 | NL80211_ATTR_WIPHY_ANTENNA_RX, | |
1368 | rx_ant)) | |
1369 | goto nla_put_failure; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | state->split_start++; | |
1374 | if (state->split) | |
1375 | break; | |
1376 | case 2: | |
1377 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, | |
1378 | rdev->wiphy.interface_modes)) | |
1379 | goto nla_put_failure; | |
1380 | state->split_start++; | |
1381 | if (state->split) | |
1382 | break; | |
1383 | case 3: | |
1384 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); | |
1385 | if (!nl_bands) | |
1386 | goto nla_put_failure; | |
1387 | ||
1388 | for (band = state->band_start; | |
1389 | band < IEEE80211_NUM_BANDS; band++) { | |
1390 | struct ieee80211_supported_band *sband; | |
1391 | ||
1392 | sband = rdev->wiphy.bands[band]; | |
1393 | ||
1394 | if (!sband) | |
1395 | continue; | |
1396 | ||
1397 | nl_band = nla_nest_start(msg, band); | |
1398 | if (!nl_band) | |
1399 | goto nla_put_failure; | |
1400 | ||
1401 | switch (state->chan_start) { | |
1402 | case 0: | |
1403 | if (nl80211_send_band_rateinfo(msg, sband)) | |
1404 | goto nla_put_failure; | |
1405 | state->chan_start++; | |
1406 | if (state->split) | |
1407 | break; | |
1408 | default: | |
1409 | /* add frequencies */ | |
1410 | nl_freqs = nla_nest_start( | |
1411 | msg, NL80211_BAND_ATTR_FREQS); | |
1412 | if (!nl_freqs) | |
1413 | goto nla_put_failure; | |
1414 | ||
1415 | for (i = state->chan_start - 1; | |
1416 | i < sband->n_channels; | |
1417 | i++) { | |
1418 | nl_freq = nla_nest_start(msg, i); | |
1419 | if (!nl_freq) | |
1420 | goto nla_put_failure; | |
1421 | ||
1422 | chan = &sband->channels[i]; | |
1423 | ||
1424 | if (nl80211_msg_put_channel( | |
1425 | msg, chan, | |
1426 | state->split)) | |
1427 | goto nla_put_failure; | |
1428 | ||
1429 | nla_nest_end(msg, nl_freq); | |
1430 | if (state->split) | |
1431 | break; | |
1432 | } | |
1433 | if (i < sband->n_channels) | |
1434 | state->chan_start = i + 2; | |
1435 | else | |
1436 | state->chan_start = 0; | |
1437 | nla_nest_end(msg, nl_freqs); | |
1438 | } | |
1439 | ||
1440 | nla_nest_end(msg, nl_band); | |
1441 | ||
1442 | if (state->split) { | |
1443 | /* start again here */ | |
1444 | if (state->chan_start) | |
1445 | band--; | |
1446 | break; | |
1447 | } | |
1448 | } | |
1449 | nla_nest_end(msg, nl_bands); | |
1450 | ||
1451 | if (band < IEEE80211_NUM_BANDS) | |
1452 | state->band_start = band + 1; | |
1453 | else | |
1454 | state->band_start = 0; | |
1455 | ||
1456 | /* if bands & channels are done, continue outside */ | |
1457 | if (state->band_start == 0 && state->chan_start == 0) | |
1458 | state->split_start++; | |
1459 | if (state->split) | |
1460 | break; | |
1461 | case 4: | |
1462 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); | |
1463 | if (!nl_cmds) | |
1464 | goto nla_put_failure; | |
1465 | ||
1466 | i = 0; | |
1467 | #define CMD(op, n) \ | |
1468 | do { \ | |
1469 | if (rdev->ops->op) { \ | |
1470 | i++; \ | |
1471 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ | |
1472 | goto nla_put_failure; \ | |
1473 | } \ | |
1474 | } while (0) | |
1475 | ||
1476 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1477 | CMD(change_virtual_intf, SET_INTERFACE); | |
1478 | CMD(add_key, NEW_KEY); | |
1479 | CMD(start_ap, START_AP); | |
1480 | CMD(add_station, NEW_STATION); | |
1481 | CMD(add_mpath, NEW_MPATH); | |
1482 | CMD(update_mesh_config, SET_MESH_CONFIG); | |
1483 | CMD(change_bss, SET_BSS); | |
1484 | CMD(auth, AUTHENTICATE); | |
1485 | CMD(assoc, ASSOCIATE); | |
1486 | CMD(deauth, DEAUTHENTICATE); | |
1487 | CMD(disassoc, DISASSOCIATE); | |
1488 | CMD(join_ibss, JOIN_IBSS); | |
1489 | CMD(join_mesh, JOIN_MESH); | |
1490 | CMD(set_pmksa, SET_PMKSA); | |
1491 | CMD(del_pmksa, DEL_PMKSA); | |
1492 | CMD(flush_pmksa, FLUSH_PMKSA); | |
1493 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) | |
1494 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); | |
1495 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); | |
1496 | CMD(mgmt_tx, FRAME); | |
1497 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); | |
1498 | if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { | |
1499 | i++; | |
1500 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) | |
1501 | goto nla_put_failure; | |
1502 | } | |
1503 | if (rdev->ops->set_monitor_channel || rdev->ops->start_ap || | |
1504 | rdev->ops->join_mesh) { | |
1505 | i++; | |
1506 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1507 | goto nla_put_failure; | |
1508 | } | |
1509 | CMD(set_wds_peer, SET_WDS_PEER); | |
1510 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { | |
1511 | CMD(tdls_mgmt, TDLS_MGMT); | |
1512 | CMD(tdls_oper, TDLS_OPER); | |
1513 | } | |
1514 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) | |
1515 | CMD(sched_scan_start, START_SCHED_SCAN); | |
1516 | CMD(probe_client, PROBE_CLIENT); | |
1517 | CMD(set_noack_map, SET_NOACK_MAP); | |
1518 | if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { | |
1519 | i++; | |
1520 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) | |
1521 | goto nla_put_failure; | |
1522 | } | |
1523 | CMD(start_p2p_device, START_P2P_DEVICE); | |
1524 | CMD(set_mcast_rate, SET_MCAST_RATE); | |
1525 | #ifdef CONFIG_NL80211_TESTMODE | |
1526 | CMD(testmode_cmd, TESTMODE); | |
1527 | #endif | |
1528 | if (state->split) { | |
1529 | CMD(crit_proto_start, CRIT_PROTOCOL_START); | |
1530 | CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); | |
1531 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) | |
1532 | CMD(channel_switch, CHANNEL_SWITCH); | |
1533 | CMD(set_qos_map, SET_QOS_MAP); | |
1534 | if (rdev->wiphy.features & | |
1535 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) | |
1536 | CMD(add_tx_ts, ADD_TX_TS); | |
1537 | } | |
1538 | /* add into the if now */ | |
1539 | #undef CMD | |
1540 | ||
1541 | if (rdev->ops->connect || rdev->ops->auth) { | |
1542 | i++; | |
1543 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) | |
1544 | goto nla_put_failure; | |
1545 | } | |
1546 | ||
1547 | if (rdev->ops->disconnect || rdev->ops->deauth) { | |
1548 | i++; | |
1549 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) | |
1550 | goto nla_put_failure; | |
1551 | } | |
1552 | ||
1553 | nla_nest_end(msg, nl_cmds); | |
1554 | state->split_start++; | |
1555 | if (state->split) | |
1556 | break; | |
1557 | case 5: | |
1558 | if (rdev->ops->remain_on_channel && | |
1559 | (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && | |
1560 | nla_put_u32(msg, | |
1561 | NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1562 | rdev->wiphy.max_remain_on_channel_duration)) | |
1563 | goto nla_put_failure; | |
1564 | ||
1565 | if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && | |
1566 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) | |
1567 | goto nla_put_failure; | |
1568 | ||
1569 | if (nl80211_send_mgmt_stypes(msg, mgmt_stypes)) | |
1570 | goto nla_put_failure; | |
1571 | state->split_start++; | |
1572 | if (state->split) | |
1573 | break; | |
1574 | case 6: | |
1575 | #ifdef CONFIG_PM | |
1576 | if (nl80211_send_wowlan(msg, rdev, state->split)) | |
1577 | goto nla_put_failure; | |
1578 | state->split_start++; | |
1579 | if (state->split) | |
1580 | break; | |
1581 | #else | |
1582 | state->split_start++; | |
1583 | #endif | |
1584 | case 7: | |
1585 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, | |
1586 | rdev->wiphy.software_iftypes)) | |
1587 | goto nla_put_failure; | |
1588 | ||
1589 | if (nl80211_put_iface_combinations(&rdev->wiphy, msg, | |
1590 | state->split)) | |
1591 | goto nla_put_failure; | |
1592 | ||
1593 | state->split_start++; | |
1594 | if (state->split) | |
1595 | break; | |
1596 | case 8: | |
1597 | if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && | |
1598 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, | |
1599 | rdev->wiphy.ap_sme_capa)) | |
1600 | goto nla_put_failure; | |
1601 | ||
1602 | features = rdev->wiphy.features; | |
1603 | /* | |
1604 | * We can only add the per-channel limit information if the | |
1605 | * dump is split, otherwise it makes it too big. Therefore | |
1606 | * only advertise it in that case. | |
1607 | */ | |
1608 | if (state->split) | |
1609 | features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS; | |
1610 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features)) | |
1611 | goto nla_put_failure; | |
1612 | ||
1613 | if (rdev->wiphy.ht_capa_mod_mask && | |
1614 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, | |
1615 | sizeof(*rdev->wiphy.ht_capa_mod_mask), | |
1616 | rdev->wiphy.ht_capa_mod_mask)) | |
1617 | goto nla_put_failure; | |
1618 | ||
1619 | if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && | |
1620 | rdev->wiphy.max_acl_mac_addrs && | |
1621 | nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, | |
1622 | rdev->wiphy.max_acl_mac_addrs)) | |
1623 | goto nla_put_failure; | |
1624 | ||
1625 | /* | |
1626 | * Any information below this point is only available to | |
1627 | * applications that can deal with it being split. This | |
1628 | * helps ensure that newly added capabilities don't break | |
1629 | * older tools by overrunning their buffers. | |
1630 | * | |
1631 | * We still increment split_start so that in the split | |
1632 | * case we'll continue with more data in the next round, | |
1633 | * but break unconditionally so unsplit data stops here. | |
1634 | */ | |
1635 | state->split_start++; | |
1636 | break; | |
1637 | case 9: | |
1638 | if (rdev->wiphy.extended_capabilities && | |
1639 | (nla_put(msg, NL80211_ATTR_EXT_CAPA, | |
1640 | rdev->wiphy.extended_capabilities_len, | |
1641 | rdev->wiphy.extended_capabilities) || | |
1642 | nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, | |
1643 | rdev->wiphy.extended_capabilities_len, | |
1644 | rdev->wiphy.extended_capabilities_mask))) | |
1645 | goto nla_put_failure; | |
1646 | ||
1647 | if (rdev->wiphy.vht_capa_mod_mask && | |
1648 | nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, | |
1649 | sizeof(*rdev->wiphy.vht_capa_mod_mask), | |
1650 | rdev->wiphy.vht_capa_mod_mask)) | |
1651 | goto nla_put_failure; | |
1652 | ||
1653 | state->split_start++; | |
1654 | break; | |
1655 | case 10: | |
1656 | if (nl80211_send_coalesce(msg, rdev)) | |
1657 | goto nla_put_failure; | |
1658 | ||
1659 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && | |
1660 | (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) || | |
1661 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ))) | |
1662 | goto nla_put_failure; | |
1663 | ||
1664 | if (rdev->wiphy.max_ap_assoc_sta && | |
1665 | nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA, | |
1666 | rdev->wiphy.max_ap_assoc_sta)) | |
1667 | goto nla_put_failure; | |
1668 | ||
1669 | state->split_start++; | |
1670 | break; | |
1671 | case 11: | |
1672 | if (rdev->wiphy.n_vendor_commands) { | |
1673 | const struct nl80211_vendor_cmd_info *info; | |
1674 | struct nlattr *nested; | |
1675 | ||
1676 | nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); | |
1677 | if (!nested) | |
1678 | goto nla_put_failure; | |
1679 | ||
1680 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { | |
1681 | info = &rdev->wiphy.vendor_commands[i].info; | |
1682 | if (nla_put(msg, i + 1, sizeof(*info), info)) | |
1683 | goto nla_put_failure; | |
1684 | } | |
1685 | nla_nest_end(msg, nested); | |
1686 | } | |
1687 | ||
1688 | if (rdev->wiphy.n_vendor_events) { | |
1689 | const struct nl80211_vendor_cmd_info *info; | |
1690 | struct nlattr *nested; | |
1691 | ||
1692 | nested = nla_nest_start(msg, | |
1693 | NL80211_ATTR_VENDOR_EVENTS); | |
1694 | if (!nested) | |
1695 | goto nla_put_failure; | |
1696 | ||
1697 | for (i = 0; i < rdev->wiphy.n_vendor_events; i++) { | |
1698 | info = &rdev->wiphy.vendor_events[i]; | |
1699 | if (nla_put(msg, i + 1, sizeof(*info), info)) | |
1700 | goto nla_put_failure; | |
1701 | } | |
1702 | nla_nest_end(msg, nested); | |
1703 | } | |
1704 | state->split_start++; | |
1705 | break; | |
1706 | case 12: | |
1707 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH && | |
1708 | nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS, | |
1709 | rdev->wiphy.max_num_csa_counters)) | |
1710 | goto nla_put_failure; | |
1711 | ||
1712 | if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && | |
1713 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
1714 | goto nla_put_failure; | |
1715 | ||
1716 | if (nla_put(msg, NL80211_ATTR_EXT_FEATURES, | |
1717 | sizeof(rdev->wiphy.ext_features), | |
1718 | rdev->wiphy.ext_features)) | |
1719 | goto nla_put_failure; | |
1720 | ||
1721 | /* done */ | |
1722 | state->split_start = 0; | |
1723 | break; | |
1724 | } | |
1725 | finish: | |
1726 | genlmsg_end(msg, hdr); | |
1727 | return 0; | |
1728 | ||
1729 | nla_put_failure: | |
1730 | genlmsg_cancel(msg, hdr); | |
1731 | return -EMSGSIZE; | |
1732 | } | |
1733 | ||
1734 | static int nl80211_dump_wiphy_parse(struct sk_buff *skb, | |
1735 | struct netlink_callback *cb, | |
1736 | struct nl80211_dump_wiphy_state *state) | |
1737 | { | |
1738 | struct nlattr **tb = nl80211_fam.attrbuf; | |
1739 | int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1740 | tb, nl80211_fam.maxattr, nl80211_policy); | |
1741 | /* ignore parse errors for backward compatibility */ | |
1742 | if (ret) | |
1743 | return 0; | |
1744 | ||
1745 | state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP]; | |
1746 | if (tb[NL80211_ATTR_WIPHY]) | |
1747 | state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); | |
1748 | if (tb[NL80211_ATTR_WDEV]) | |
1749 | state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32; | |
1750 | if (tb[NL80211_ATTR_IFINDEX]) { | |
1751 | struct net_device *netdev; | |
1752 | struct cfg80211_registered_device *rdev; | |
1753 | int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
1754 | ||
1755 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
1756 | if (!netdev) | |
1757 | return -ENODEV; | |
1758 | if (netdev->ieee80211_ptr) { | |
1759 | rdev = wiphy_to_rdev( | |
1760 | netdev->ieee80211_ptr->wiphy); | |
1761 | state->filter_wiphy = rdev->wiphy_idx; | |
1762 | } | |
1763 | } | |
1764 | ||
1765 | return 0; | |
1766 | } | |
1767 | ||
1768 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
1769 | { | |
1770 | int idx = 0, ret; | |
1771 | struct nl80211_dump_wiphy_state *state = (void *)cb->args[0]; | |
1772 | struct cfg80211_registered_device *rdev; | |
1773 | ||
1774 | rtnl_lock(); | |
1775 | if (!state) { | |
1776 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
1777 | if (!state) { | |
1778 | rtnl_unlock(); | |
1779 | return -ENOMEM; | |
1780 | } | |
1781 | state->filter_wiphy = -1; | |
1782 | ret = nl80211_dump_wiphy_parse(skb, cb, state); | |
1783 | if (ret) { | |
1784 | kfree(state); | |
1785 | rtnl_unlock(); | |
1786 | return ret; | |
1787 | } | |
1788 | cb->args[0] = (long)state; | |
1789 | } | |
1790 | ||
1791 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
1792 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
1793 | continue; | |
1794 | if (++idx <= state->start) | |
1795 | continue; | |
1796 | if (state->filter_wiphy != -1 && | |
1797 | state->filter_wiphy != rdev->wiphy_idx) | |
1798 | continue; | |
1799 | /* attempt to fit multiple wiphy data chunks into the skb */ | |
1800 | do { | |
1801 | ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, | |
1802 | skb, | |
1803 | NETLINK_CB(cb->skb).portid, | |
1804 | cb->nlh->nlmsg_seq, | |
1805 | NLM_F_MULTI, state); | |
1806 | if (ret < 0) { | |
1807 | /* | |
1808 | * If sending the wiphy data didn't fit (ENOBUFS | |
1809 | * or EMSGSIZE returned), this SKB is still | |
1810 | * empty (so it's not too big because another | |
1811 | * wiphy dataset is already in the skb) and | |
1812 | * we've not tried to adjust the dump allocation | |
1813 | * yet ... then adjust the alloc size to be | |
1814 | * bigger, and return 1 but with the empty skb. | |
1815 | * This results in an empty message being RX'ed | |
1816 | * in userspace, but that is ignored. | |
1817 | * | |
1818 | * We can then retry with the larger buffer. | |
1819 | */ | |
1820 | if ((ret == -ENOBUFS || ret == -EMSGSIZE) && | |
1821 | !skb->len && !state->split && | |
1822 | cb->min_dump_alloc < 4096) { | |
1823 | cb->min_dump_alloc = 4096; | |
1824 | state->split_start = 0; | |
1825 | rtnl_unlock(); | |
1826 | return 1; | |
1827 | } | |
1828 | idx--; | |
1829 | break; | |
1830 | } | |
1831 | } while (state->split_start > 0); | |
1832 | break; | |
1833 | } | |
1834 | rtnl_unlock(); | |
1835 | ||
1836 | state->start = idx; | |
1837 | ||
1838 | return skb->len; | |
1839 | } | |
1840 | ||
1841 | static int nl80211_dump_wiphy_done(struct netlink_callback *cb) | |
1842 | { | |
1843 | kfree((void *)cb->args[0]); | |
1844 | return 0; | |
1845 | } | |
1846 | ||
1847 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1848 | { | |
1849 | struct sk_buff *msg; | |
1850 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
1851 | struct nl80211_dump_wiphy_state state = {}; | |
1852 | ||
1853 | msg = nlmsg_new(4096, GFP_KERNEL); | |
1854 | if (!msg) | |
1855 | return -ENOMEM; | |
1856 | ||
1857 | if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg, | |
1858 | info->snd_portid, info->snd_seq, 0, | |
1859 | &state) < 0) { | |
1860 | nlmsg_free(msg); | |
1861 | return -ENOBUFS; | |
1862 | } | |
1863 | ||
1864 | return genlmsg_reply(msg, info); | |
1865 | } | |
1866 | ||
1867 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { | |
1868 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1869 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1870 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1871 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1872 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1873 | }; | |
1874 | ||
1875 | static int parse_txq_params(struct nlattr *tb[], | |
1876 | struct ieee80211_txq_params *txq_params) | |
1877 | { | |
1878 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
1879 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
1880 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1881 | return -EINVAL; | |
1882 | ||
1883 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); | |
1884 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
1885 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1886 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1887 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1888 | ||
1889 | if (txq_params->ac >= NL80211_NUM_ACS) | |
1890 | return -EINVAL; | |
1891 | ||
1892 | return 0; | |
1893 | } | |
1894 | ||
1895 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) | |
1896 | { | |
1897 | /* | |
1898 | * You can only set the channel explicitly for WDS interfaces, | |
1899 | * all others have their channel managed via their respective | |
1900 | * "establish a connection" command (connect, join, ...) | |
1901 | * | |
1902 | * For AP/GO and mesh mode, the channel can be set with the | |
1903 | * channel userspace API, but is only stored and passed to the | |
1904 | * low-level driver when the AP starts or the mesh is joined. | |
1905 | * This is for backward compatibility, userspace can also give | |
1906 | * the channel in the start-ap or join-mesh commands instead. | |
1907 | * | |
1908 | * Monitors are special as they are normally slaved to | |
1909 | * whatever else is going on, so they have their own special | |
1910 | * operation to set the monitor channel if possible. | |
1911 | */ | |
1912 | return !wdev || | |
1913 | wdev->iftype == NL80211_IFTYPE_AP || | |
1914 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
1915 | wdev->iftype == NL80211_IFTYPE_MONITOR || | |
1916 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
1917 | } | |
1918 | ||
1919 | static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, | |
1920 | struct genl_info *info, | |
1921 | struct cfg80211_chan_def *chandef) | |
1922 | { | |
1923 | u32 control_freq; | |
1924 | ||
1925 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1926 | return -EINVAL; | |
1927 | ||
1928 | control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1929 | ||
1930 | chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq); | |
1931 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; | |
1932 | chandef->center_freq1 = control_freq; | |
1933 | chandef->center_freq2 = 0; | |
1934 | ||
1935 | /* Primary channel not allowed */ | |
1936 | if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) | |
1937 | return -EINVAL; | |
1938 | ||
1939 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
1940 | enum nl80211_channel_type chantype; | |
1941 | ||
1942 | chantype = nla_get_u32( | |
1943 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1944 | ||
1945 | switch (chantype) { | |
1946 | case NL80211_CHAN_NO_HT: | |
1947 | case NL80211_CHAN_HT20: | |
1948 | case NL80211_CHAN_HT40PLUS: | |
1949 | case NL80211_CHAN_HT40MINUS: | |
1950 | cfg80211_chandef_create(chandef, chandef->chan, | |
1951 | chantype); | |
1952 | break; | |
1953 | default: | |
1954 | return -EINVAL; | |
1955 | } | |
1956 | } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) { | |
1957 | chandef->width = | |
1958 | nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]); | |
1959 | if (info->attrs[NL80211_ATTR_CENTER_FREQ1]) | |
1960 | chandef->center_freq1 = | |
1961 | nla_get_u32( | |
1962 | info->attrs[NL80211_ATTR_CENTER_FREQ1]); | |
1963 | if (info->attrs[NL80211_ATTR_CENTER_FREQ2]) | |
1964 | chandef->center_freq2 = | |
1965 | nla_get_u32( | |
1966 | info->attrs[NL80211_ATTR_CENTER_FREQ2]); | |
1967 | } | |
1968 | ||
1969 | if (!cfg80211_chandef_valid(chandef)) | |
1970 | return -EINVAL; | |
1971 | ||
1972 | if (!cfg80211_chandef_usable(&rdev->wiphy, chandef, | |
1973 | IEEE80211_CHAN_DISABLED)) | |
1974 | return -EINVAL; | |
1975 | ||
1976 | if ((chandef->width == NL80211_CHAN_WIDTH_5 || | |
1977 | chandef->width == NL80211_CHAN_WIDTH_10) && | |
1978 | !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) | |
1979 | return -EINVAL; | |
1980 | ||
1981 | return 0; | |
1982 | } | |
1983 | ||
1984 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
1985 | struct net_device *dev, | |
1986 | struct genl_info *info) | |
1987 | { | |
1988 | struct cfg80211_chan_def chandef; | |
1989 | int result; | |
1990 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; | |
1991 | struct wireless_dev *wdev = NULL; | |
1992 | ||
1993 | if (dev) | |
1994 | wdev = dev->ieee80211_ptr; | |
1995 | if (!nl80211_can_set_dev_channel(wdev)) | |
1996 | return -EOPNOTSUPP; | |
1997 | if (wdev) | |
1998 | iftype = wdev->iftype; | |
1999 | ||
2000 | result = nl80211_parse_chandef(rdev, info, &chandef); | |
2001 | if (result) | |
2002 | return result; | |
2003 | ||
2004 | switch (iftype) { | |
2005 | case NL80211_IFTYPE_AP: | |
2006 | case NL80211_IFTYPE_P2P_GO: | |
2007 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) { | |
2008 | result = -EINVAL; | |
2009 | break; | |
2010 | } | |
2011 | if (wdev->beacon_interval) { | |
2012 | if (!dev || !rdev->ops->set_ap_chanwidth || | |
2013 | !(rdev->wiphy.features & | |
2014 | NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) { | |
2015 | result = -EBUSY; | |
2016 | break; | |
2017 | } | |
2018 | ||
2019 | /* Only allow dynamic channel width changes */ | |
2020 | if (chandef.chan != wdev->preset_chandef.chan) { | |
2021 | result = -EBUSY; | |
2022 | break; | |
2023 | } | |
2024 | result = rdev_set_ap_chanwidth(rdev, dev, &chandef); | |
2025 | if (result) | |
2026 | break; | |
2027 | } | |
2028 | wdev->preset_chandef = chandef; | |
2029 | result = 0; | |
2030 | break; | |
2031 | case NL80211_IFTYPE_MESH_POINT: | |
2032 | result = cfg80211_set_mesh_channel(rdev, wdev, &chandef); | |
2033 | break; | |
2034 | case NL80211_IFTYPE_MONITOR: | |
2035 | result = cfg80211_set_monitor_channel(rdev, &chandef); | |
2036 | break; | |
2037 | default: | |
2038 | result = -EINVAL; | |
2039 | } | |
2040 | ||
2041 | return result; | |
2042 | } | |
2043 | ||
2044 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
2045 | { | |
2046 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2047 | struct net_device *netdev = info->user_ptr[1]; | |
2048 | ||
2049 | return __nl80211_set_channel(rdev, netdev, info); | |
2050 | } | |
2051 | ||
2052 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) | |
2053 | { | |
2054 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2055 | struct net_device *dev = info->user_ptr[1]; | |
2056 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2057 | const u8 *bssid; | |
2058 | ||
2059 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2060 | return -EINVAL; | |
2061 | ||
2062 | if (netif_running(dev)) | |
2063 | return -EBUSY; | |
2064 | ||
2065 | if (!rdev->ops->set_wds_peer) | |
2066 | return -EOPNOTSUPP; | |
2067 | ||
2068 | if (wdev->iftype != NL80211_IFTYPE_WDS) | |
2069 | return -EOPNOTSUPP; | |
2070 | ||
2071 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2072 | return rdev_set_wds_peer(rdev, dev, bssid); | |
2073 | } | |
2074 | ||
2075 | ||
2076 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) | |
2077 | { | |
2078 | struct cfg80211_registered_device *rdev; | |
2079 | struct net_device *netdev = NULL; | |
2080 | struct wireless_dev *wdev; | |
2081 | int result = 0, rem_txq_params = 0; | |
2082 | struct nlattr *nl_txq_params; | |
2083 | u32 changed; | |
2084 | u8 retry_short = 0, retry_long = 0; | |
2085 | u32 frag_threshold = 0, rts_threshold = 0; | |
2086 | u8 coverage_class = 0; | |
2087 | ||
2088 | ASSERT_RTNL(); | |
2089 | ||
2090 | /* | |
2091 | * Try to find the wiphy and netdev. Normally this | |
2092 | * function shouldn't need the netdev, but this is | |
2093 | * done for backward compatibility -- previously | |
2094 | * setting the channel was done per wiphy, but now | |
2095 | * it is per netdev. Previous userland like hostapd | |
2096 | * also passed a netdev to set_wiphy, so that it is | |
2097 | * possible to let that go to the right netdev! | |
2098 | */ | |
2099 | ||
2100 | if (info->attrs[NL80211_ATTR_IFINDEX]) { | |
2101 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
2102 | ||
2103 | netdev = __dev_get_by_index(genl_info_net(info), ifindex); | |
2104 | if (netdev && netdev->ieee80211_ptr) | |
2105 | rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy); | |
2106 | else | |
2107 | netdev = NULL; | |
2108 | } | |
2109 | ||
2110 | if (!netdev) { | |
2111 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), | |
2112 | info->attrs); | |
2113 | if (IS_ERR(rdev)) | |
2114 | return PTR_ERR(rdev); | |
2115 | wdev = NULL; | |
2116 | netdev = NULL; | |
2117 | result = 0; | |
2118 | } else | |
2119 | wdev = netdev->ieee80211_ptr; | |
2120 | ||
2121 | /* | |
2122 | * end workaround code, by now the rdev is available | |
2123 | * and locked, and wdev may or may not be NULL. | |
2124 | */ | |
2125 | ||
2126 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
2127 | result = cfg80211_dev_rename( | |
2128 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
2129 | ||
2130 | if (result) | |
2131 | return result; | |
2132 | ||
2133 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
2134 | struct ieee80211_txq_params txq_params; | |
2135 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
2136 | ||
2137 | if (!rdev->ops->set_txq_params) | |
2138 | return -EOPNOTSUPP; | |
2139 | ||
2140 | if (!netdev) | |
2141 | return -EINVAL; | |
2142 | ||
2143 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2144 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2145 | return -EINVAL; | |
2146 | ||
2147 | if (!netif_running(netdev)) | |
2148 | return -ENETDOWN; | |
2149 | ||
2150 | nla_for_each_nested(nl_txq_params, | |
2151 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
2152 | rem_txq_params) { | |
2153 | result = nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
2154 | nla_data(nl_txq_params), | |
2155 | nla_len(nl_txq_params), | |
2156 | txq_params_policy); | |
2157 | if (result) | |
2158 | return result; | |
2159 | result = parse_txq_params(tb, &txq_params); | |
2160 | if (result) | |
2161 | return result; | |
2162 | ||
2163 | result = rdev_set_txq_params(rdev, netdev, | |
2164 | &txq_params); | |
2165 | if (result) | |
2166 | return result; | |
2167 | } | |
2168 | } | |
2169 | ||
2170 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2171 | result = __nl80211_set_channel( | |
2172 | rdev, | |
2173 | nl80211_can_set_dev_channel(wdev) ? netdev : NULL, | |
2174 | info); | |
2175 | if (result) | |
2176 | return result; | |
2177 | } | |
2178 | ||
2179 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { | |
2180 | struct wireless_dev *txp_wdev = wdev; | |
2181 | enum nl80211_tx_power_setting type; | |
2182 | int idx, mbm = 0; | |
2183 | ||
2184 | if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) | |
2185 | txp_wdev = NULL; | |
2186 | ||
2187 | if (!rdev->ops->set_tx_power) | |
2188 | return -EOPNOTSUPP; | |
2189 | ||
2190 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
2191 | type = nla_get_u32(info->attrs[idx]); | |
2192 | ||
2193 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
2194 | (type != NL80211_TX_POWER_AUTOMATIC)) | |
2195 | return -EINVAL; | |
2196 | ||
2197 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
2198 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
2199 | mbm = nla_get_u32(info->attrs[idx]); | |
2200 | } | |
2201 | ||
2202 | result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); | |
2203 | if (result) | |
2204 | return result; | |
2205 | } | |
2206 | ||
2207 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && | |
2208 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
2209 | u32 tx_ant, rx_ant; | |
2210 | if ((!rdev->wiphy.available_antennas_tx && | |
2211 | !rdev->wiphy.available_antennas_rx) || | |
2212 | !rdev->ops->set_antenna) | |
2213 | return -EOPNOTSUPP; | |
2214 | ||
2215 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
2216 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
2217 | ||
2218 | /* reject antenna configurations which don't match the | |
2219 | * available antenna masks, except for the "all" mask */ | |
2220 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
2221 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) | |
2222 | return -EINVAL; | |
2223 | ||
2224 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; | |
2225 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
2226 | ||
2227 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); | |
2228 | if (result) | |
2229 | return result; | |
2230 | } | |
2231 | ||
2232 | changed = 0; | |
2233 | ||
2234 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
2235 | retry_short = nla_get_u8( | |
2236 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
2237 | if (retry_short == 0) | |
2238 | return -EINVAL; | |
2239 | ||
2240 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
2241 | } | |
2242 | ||
2243 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
2244 | retry_long = nla_get_u8( | |
2245 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
2246 | if (retry_long == 0) | |
2247 | return -EINVAL; | |
2248 | ||
2249 | changed |= WIPHY_PARAM_RETRY_LONG; | |
2250 | } | |
2251 | ||
2252 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
2253 | frag_threshold = nla_get_u32( | |
2254 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
2255 | if (frag_threshold < 256) | |
2256 | return -EINVAL; | |
2257 | ||
2258 | if (frag_threshold != (u32) -1) { | |
2259 | /* | |
2260 | * Fragments (apart from the last one) are required to | |
2261 | * have even length. Make the fragmentation code | |
2262 | * simpler by stripping LSB should someone try to use | |
2263 | * odd threshold value. | |
2264 | */ | |
2265 | frag_threshold &= ~0x1; | |
2266 | } | |
2267 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
2268 | } | |
2269 | ||
2270 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
2271 | rts_threshold = nla_get_u32( | |
2272 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
2273 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
2274 | } | |
2275 | ||
2276 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { | |
2277 | if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) | |
2278 | return -EINVAL; | |
2279 | ||
2280 | coverage_class = nla_get_u8( | |
2281 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
2282 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
2283 | } | |
2284 | ||
2285 | if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) { | |
2286 | if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION)) | |
2287 | return -EOPNOTSUPP; | |
2288 | ||
2289 | changed |= WIPHY_PARAM_DYN_ACK; | |
2290 | } | |
2291 | ||
2292 | if (changed) { | |
2293 | u8 old_retry_short, old_retry_long; | |
2294 | u32 old_frag_threshold, old_rts_threshold; | |
2295 | u8 old_coverage_class; | |
2296 | ||
2297 | if (!rdev->ops->set_wiphy_params) | |
2298 | return -EOPNOTSUPP; | |
2299 | ||
2300 | old_retry_short = rdev->wiphy.retry_short; | |
2301 | old_retry_long = rdev->wiphy.retry_long; | |
2302 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
2303 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
2304 | old_coverage_class = rdev->wiphy.coverage_class; | |
2305 | ||
2306 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
2307 | rdev->wiphy.retry_short = retry_short; | |
2308 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
2309 | rdev->wiphy.retry_long = retry_long; | |
2310 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
2311 | rdev->wiphy.frag_threshold = frag_threshold; | |
2312 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
2313 | rdev->wiphy.rts_threshold = rts_threshold; | |
2314 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) | |
2315 | rdev->wiphy.coverage_class = coverage_class; | |
2316 | ||
2317 | result = rdev_set_wiphy_params(rdev, changed); | |
2318 | if (result) { | |
2319 | rdev->wiphy.retry_short = old_retry_short; | |
2320 | rdev->wiphy.retry_long = old_retry_long; | |
2321 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
2322 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
2323 | rdev->wiphy.coverage_class = old_coverage_class; | |
2324 | } | |
2325 | } | |
2326 | return 0; | |
2327 | } | |
2328 | ||
2329 | static inline u64 wdev_id(struct wireless_dev *wdev) | |
2330 | { | |
2331 | return (u64)wdev->identifier | | |
2332 | ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32); | |
2333 | } | |
2334 | ||
2335 | static int nl80211_send_chandef(struct sk_buff *msg, | |
2336 | const struct cfg80211_chan_def *chandef) | |
2337 | { | |
2338 | if (WARN_ON(!cfg80211_chandef_valid(chandef))) | |
2339 | return -EINVAL; | |
2340 | ||
2341 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, | |
2342 | chandef->chan->center_freq)) | |
2343 | return -ENOBUFS; | |
2344 | switch (chandef->width) { | |
2345 | case NL80211_CHAN_WIDTH_20_NOHT: | |
2346 | case NL80211_CHAN_WIDTH_20: | |
2347 | case NL80211_CHAN_WIDTH_40: | |
2348 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
2349 | cfg80211_get_chandef_type(chandef))) | |
2350 | return -ENOBUFS; | |
2351 | break; | |
2352 | default: | |
2353 | break; | |
2354 | } | |
2355 | if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width)) | |
2356 | return -ENOBUFS; | |
2357 | if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1)) | |
2358 | return -ENOBUFS; | |
2359 | if (chandef->center_freq2 && | |
2360 | nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2)) | |
2361 | return -ENOBUFS; | |
2362 | return 0; | |
2363 | } | |
2364 | ||
2365 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, | |
2366 | struct cfg80211_registered_device *rdev, | |
2367 | struct wireless_dev *wdev, bool removal) | |
2368 | { | |
2369 | struct net_device *dev = wdev->netdev; | |
2370 | u8 cmd = NL80211_CMD_NEW_INTERFACE; | |
2371 | void *hdr; | |
2372 | ||
2373 | if (removal) | |
2374 | cmd = NL80211_CMD_DEL_INTERFACE; | |
2375 | ||
2376 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
2377 | if (!hdr) | |
2378 | return -1; | |
2379 | ||
2380 | if (dev && | |
2381 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
2382 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) | |
2383 | goto nla_put_failure; | |
2384 | ||
2385 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
2386 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
2387 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || | |
2388 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || | |
2389 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
2390 | rdev->devlist_generation ^ | |
2391 | (cfg80211_rdev_list_generation << 2))) | |
2392 | goto nla_put_failure; | |
2393 | ||
2394 | if (rdev->ops->get_channel) { | |
2395 | int ret; | |
2396 | struct cfg80211_chan_def chandef; | |
2397 | ||
2398 | ret = rdev_get_channel(rdev, wdev, &chandef); | |
2399 | if (ret == 0) { | |
2400 | if (nl80211_send_chandef(msg, &chandef)) | |
2401 | goto nla_put_failure; | |
2402 | } | |
2403 | } | |
2404 | ||
2405 | if (wdev->ssid_len) { | |
2406 | if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid)) | |
2407 | goto nla_put_failure; | |
2408 | } | |
2409 | ||
2410 | genlmsg_end(msg, hdr); | |
2411 | return 0; | |
2412 | ||
2413 | nla_put_failure: | |
2414 | genlmsg_cancel(msg, hdr); | |
2415 | return -EMSGSIZE; | |
2416 | } | |
2417 | ||
2418 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
2419 | { | |
2420 | int wp_idx = 0; | |
2421 | int if_idx = 0; | |
2422 | int wp_start = cb->args[0]; | |
2423 | int if_start = cb->args[1]; | |
2424 | struct cfg80211_registered_device *rdev; | |
2425 | struct wireless_dev *wdev; | |
2426 | ||
2427 | rtnl_lock(); | |
2428 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
2429 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
2430 | continue; | |
2431 | if (wp_idx < wp_start) { | |
2432 | wp_idx++; | |
2433 | continue; | |
2434 | } | |
2435 | if_idx = 0; | |
2436 | ||
2437 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
2438 | if (if_idx < if_start) { | |
2439 | if_idx++; | |
2440 | continue; | |
2441 | } | |
2442 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, | |
2443 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2444 | rdev, wdev, false) < 0) { | |
2445 | goto out; | |
2446 | } | |
2447 | if_idx++; | |
2448 | } | |
2449 | ||
2450 | wp_idx++; | |
2451 | } | |
2452 | out: | |
2453 | rtnl_unlock(); | |
2454 | ||
2455 | cb->args[0] = wp_idx; | |
2456 | cb->args[1] = if_idx; | |
2457 | ||
2458 | return skb->len; | |
2459 | } | |
2460 | ||
2461 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
2462 | { | |
2463 | struct sk_buff *msg; | |
2464 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2465 | struct wireless_dev *wdev = info->user_ptr[1]; | |
2466 | ||
2467 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2468 | if (!msg) | |
2469 | return -ENOMEM; | |
2470 | ||
2471 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, | |
2472 | rdev, wdev, false) < 0) { | |
2473 | nlmsg_free(msg); | |
2474 | return -ENOBUFS; | |
2475 | } | |
2476 | ||
2477 | return genlmsg_reply(msg, info); | |
2478 | } | |
2479 | ||
2480 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { | |
2481 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
2482 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
2483 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
2484 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
2485 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
2486 | [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG }, | |
2487 | }; | |
2488 | ||
2489 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
2490 | { | |
2491 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
2492 | int flag; | |
2493 | ||
2494 | *mntrflags = 0; | |
2495 | ||
2496 | if (!nla) | |
2497 | return -EINVAL; | |
2498 | ||
2499 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
2500 | nla, mntr_flags_policy)) | |
2501 | return -EINVAL; | |
2502 | ||
2503 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
2504 | if (flags[flag]) | |
2505 | *mntrflags |= (1<<flag); | |
2506 | ||
2507 | return 0; | |
2508 | } | |
2509 | ||
2510 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, | |
2511 | struct net_device *netdev, u8 use_4addr, | |
2512 | enum nl80211_iftype iftype) | |
2513 | { | |
2514 | if (!use_4addr) { | |
2515 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) | |
2516 | return -EBUSY; | |
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | switch (iftype) { | |
2521 | case NL80211_IFTYPE_AP_VLAN: | |
2522 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
2523 | return 0; | |
2524 | break; | |
2525 | case NL80211_IFTYPE_STATION: | |
2526 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
2527 | return 0; | |
2528 | break; | |
2529 | default: | |
2530 | break; | |
2531 | } | |
2532 | ||
2533 | return -EOPNOTSUPP; | |
2534 | } | |
2535 | ||
2536 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) | |
2537 | { | |
2538 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2539 | struct vif_params params; | |
2540 | int err; | |
2541 | enum nl80211_iftype otype, ntype; | |
2542 | struct net_device *dev = info->user_ptr[1]; | |
2543 | u32 _flags, *flags = NULL; | |
2544 | bool change = false; | |
2545 | ||
2546 | memset(¶ms, 0, sizeof(params)); | |
2547 | ||
2548 | otype = ntype = dev->ieee80211_ptr->iftype; | |
2549 | ||
2550 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2551 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2552 | if (otype != ntype) | |
2553 | change = true; | |
2554 | if (ntype > NL80211_IFTYPE_MAX) | |
2555 | return -EINVAL; | |
2556 | } | |
2557 | ||
2558 | if (info->attrs[NL80211_ATTR_MESH_ID]) { | |
2559 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2560 | ||
2561 | if (ntype != NL80211_IFTYPE_MESH_POINT) | |
2562 | return -EINVAL; | |
2563 | if (netif_running(dev)) | |
2564 | return -EBUSY; | |
2565 | ||
2566 | wdev_lock(wdev); | |
2567 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2568 | IEEE80211_MAX_MESH_ID_LEN); | |
2569 | wdev->mesh_id_up_len = | |
2570 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2571 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2572 | wdev->mesh_id_up_len); | |
2573 | wdev_unlock(wdev); | |
2574 | } | |
2575 | ||
2576 | if (info->attrs[NL80211_ATTR_4ADDR]) { | |
2577 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
2578 | change = true; | |
2579 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); | |
2580 | if (err) | |
2581 | return err; | |
2582 | } else { | |
2583 | params.use_4addr = -1; | |
2584 | } | |
2585 | ||
2586 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { | |
2587 | if (ntype != NL80211_IFTYPE_MONITOR) | |
2588 | return -EINVAL; | |
2589 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
2590 | &_flags); | |
2591 | if (err) | |
2592 | return err; | |
2593 | ||
2594 | flags = &_flags; | |
2595 | change = true; | |
2596 | } | |
2597 | ||
2598 | if (flags && (*flags & MONITOR_FLAG_ACTIVE) && | |
2599 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) | |
2600 | return -EOPNOTSUPP; | |
2601 | ||
2602 | if (change) | |
2603 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); | |
2604 | else | |
2605 | err = 0; | |
2606 | ||
2607 | if (!err && params.use_4addr != -1) | |
2608 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
2609 | ||
2610 | return err; | |
2611 | } | |
2612 | ||
2613 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
2614 | { | |
2615 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2616 | struct vif_params params; | |
2617 | struct wireless_dev *wdev; | |
2618 | struct sk_buff *msg, *event; | |
2619 | int err; | |
2620 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
2621 | u32 flags; | |
2622 | ||
2623 | /* to avoid failing a new interface creation due to pending removal */ | |
2624 | cfg80211_destroy_ifaces(rdev); | |
2625 | ||
2626 | memset(¶ms, 0, sizeof(params)); | |
2627 | ||
2628 | if (!info->attrs[NL80211_ATTR_IFNAME]) | |
2629 | return -EINVAL; | |
2630 | ||
2631 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2632 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2633 | if (type > NL80211_IFTYPE_MAX) | |
2634 | return -EINVAL; | |
2635 | } | |
2636 | ||
2637 | if (!rdev->ops->add_virtual_intf || | |
2638 | !(rdev->wiphy.interface_modes & (1 << type))) | |
2639 | return -EOPNOTSUPP; | |
2640 | ||
2641 | if ((type == NL80211_IFTYPE_P2P_DEVICE || | |
2642 | rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) && | |
2643 | info->attrs[NL80211_ATTR_MAC]) { | |
2644 | nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], | |
2645 | ETH_ALEN); | |
2646 | if (!is_valid_ether_addr(params.macaddr)) | |
2647 | return -EADDRNOTAVAIL; | |
2648 | } | |
2649 | ||
2650 | if (info->attrs[NL80211_ATTR_4ADDR]) { | |
2651 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
2652 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); | |
2653 | if (err) | |
2654 | return err; | |
2655 | } | |
2656 | ||
2657 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? | |
2658 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2659 | &flags); | |
2660 | ||
2661 | if (!err && (flags & MONITOR_FLAG_ACTIVE) && | |
2662 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) | |
2663 | return -EOPNOTSUPP; | |
2664 | ||
2665 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2666 | if (!msg) | |
2667 | return -ENOMEM; | |
2668 | ||
2669 | wdev = rdev_add_virtual_intf(rdev, | |
2670 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), | |
2671 | type, err ? NULL : &flags, ¶ms); | |
2672 | if (WARN_ON(!wdev)) { | |
2673 | nlmsg_free(msg); | |
2674 | return -EPROTO; | |
2675 | } else if (IS_ERR(wdev)) { | |
2676 | nlmsg_free(msg); | |
2677 | return PTR_ERR(wdev); | |
2678 | } | |
2679 | ||
2680 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) | |
2681 | wdev->owner_nlportid = info->snd_portid; | |
2682 | ||
2683 | switch (type) { | |
2684 | case NL80211_IFTYPE_MESH_POINT: | |
2685 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2686 | break; | |
2687 | wdev_lock(wdev); | |
2688 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2689 | IEEE80211_MAX_MESH_ID_LEN); | |
2690 | wdev->mesh_id_up_len = | |
2691 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2692 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2693 | wdev->mesh_id_up_len); | |
2694 | wdev_unlock(wdev); | |
2695 | break; | |
2696 | case NL80211_IFTYPE_P2P_DEVICE: | |
2697 | /* | |
2698 | * P2P Device doesn't have a netdev, so doesn't go | |
2699 | * through the netdev notifier and must be added here | |
2700 | */ | |
2701 | mutex_init(&wdev->mtx); | |
2702 | INIT_LIST_HEAD(&wdev->event_list); | |
2703 | spin_lock_init(&wdev->event_lock); | |
2704 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2705 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2706 | ||
2707 | wdev->identifier = ++rdev->wdev_id; | |
2708 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2709 | rdev->devlist_generation++; | |
2710 | break; | |
2711 | default: | |
2712 | break; | |
2713 | } | |
2714 | ||
2715 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, | |
2716 | rdev, wdev, false) < 0) { | |
2717 | nlmsg_free(msg); | |
2718 | return -ENOBUFS; | |
2719 | } | |
2720 | ||
2721 | event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2722 | if (event) { | |
2723 | if (nl80211_send_iface(event, 0, 0, 0, | |
2724 | rdev, wdev, false) < 0) { | |
2725 | nlmsg_free(event); | |
2726 | goto out; | |
2727 | } | |
2728 | ||
2729 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), | |
2730 | event, 0, NL80211_MCGRP_CONFIG, | |
2731 | GFP_KERNEL); | |
2732 | } | |
2733 | ||
2734 | out: | |
2735 | return genlmsg_reply(msg, info); | |
2736 | } | |
2737 | ||
2738 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2739 | { | |
2740 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2741 | struct wireless_dev *wdev = info->user_ptr[1]; | |
2742 | struct sk_buff *msg; | |
2743 | int status; | |
2744 | ||
2745 | if (!rdev->ops->del_virtual_intf) | |
2746 | return -EOPNOTSUPP; | |
2747 | ||
2748 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2749 | if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) { | |
2750 | nlmsg_free(msg); | |
2751 | msg = NULL; | |
2752 | } | |
2753 | ||
2754 | /* | |
2755 | * If we remove a wireless device without a netdev then clear | |
2756 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2757 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2758 | * since the wdev has been freed, unlike with a netdev where | |
2759 | * we need the dev_put() for the netdev to really be freed. | |
2760 | */ | |
2761 | if (!wdev->netdev) | |
2762 | info->user_ptr[1] = NULL; | |
2763 | ||
2764 | status = rdev_del_virtual_intf(rdev, wdev); | |
2765 | if (status >= 0 && msg) | |
2766 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), | |
2767 | msg, 0, NL80211_MCGRP_CONFIG, | |
2768 | GFP_KERNEL); | |
2769 | else | |
2770 | nlmsg_free(msg); | |
2771 | ||
2772 | return status; | |
2773 | } | |
2774 | ||
2775 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) | |
2776 | { | |
2777 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2778 | struct net_device *dev = info->user_ptr[1]; | |
2779 | u16 noack_map; | |
2780 | ||
2781 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2782 | return -EINVAL; | |
2783 | ||
2784 | if (!rdev->ops->set_noack_map) | |
2785 | return -EOPNOTSUPP; | |
2786 | ||
2787 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2788 | ||
2789 | return rdev_set_noack_map(rdev, dev, noack_map); | |
2790 | } | |
2791 | ||
2792 | struct get_key_cookie { | |
2793 | struct sk_buff *msg; | |
2794 | int error; | |
2795 | int idx; | |
2796 | }; | |
2797 | ||
2798 | static void get_key_callback(void *c, struct key_params *params) | |
2799 | { | |
2800 | struct nlattr *key; | |
2801 | struct get_key_cookie *cookie = c; | |
2802 | ||
2803 | if ((params->key && | |
2804 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2805 | params->key_len, params->key)) || | |
2806 | (params->seq && | |
2807 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2808 | params->seq_len, params->seq)) || | |
2809 | (params->cipher && | |
2810 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2811 | params->cipher))) | |
2812 | goto nla_put_failure; | |
2813 | ||
2814 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); | |
2815 | if (!key) | |
2816 | goto nla_put_failure; | |
2817 | ||
2818 | if ((params->key && | |
2819 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2820 | params->key_len, params->key)) || | |
2821 | (params->seq && | |
2822 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2823 | params->seq_len, params->seq)) || | |
2824 | (params->cipher && | |
2825 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2826 | params->cipher))) | |
2827 | goto nla_put_failure; | |
2828 | ||
2829 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) | |
2830 | goto nla_put_failure; | |
2831 | ||
2832 | nla_nest_end(cookie->msg, key); | |
2833 | ||
2834 | return; | |
2835 | nla_put_failure: | |
2836 | cookie->error = 1; | |
2837 | } | |
2838 | ||
2839 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2840 | { | |
2841 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2842 | int err; | |
2843 | struct net_device *dev = info->user_ptr[1]; | |
2844 | u8 key_idx = 0; | |
2845 | const u8 *mac_addr = NULL; | |
2846 | bool pairwise; | |
2847 | struct get_key_cookie cookie = { | |
2848 | .error = 0, | |
2849 | }; | |
2850 | void *hdr; | |
2851 | struct sk_buff *msg; | |
2852 | ||
2853 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2854 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2855 | ||
2856 | if (key_idx > 5) | |
2857 | return -EINVAL; | |
2858 | ||
2859 | if (info->attrs[NL80211_ATTR_MAC]) | |
2860 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2861 | ||
2862 | pairwise = !!mac_addr; | |
2863 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2864 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2865 | if (kt >= NUM_NL80211_KEYTYPES) | |
2866 | return -EINVAL; | |
2867 | if (kt != NL80211_KEYTYPE_GROUP && | |
2868 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2869 | return -EINVAL; | |
2870 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2871 | } | |
2872 | ||
2873 | if (!rdev->ops->get_key) | |
2874 | return -EOPNOTSUPP; | |
2875 | ||
2876 | if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2877 | return -ENOENT; | |
2878 | ||
2879 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2880 | if (!msg) | |
2881 | return -ENOMEM; | |
2882 | ||
2883 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
2884 | NL80211_CMD_NEW_KEY); | |
2885 | if (!hdr) | |
2886 | goto nla_put_failure; | |
2887 | ||
2888 | cookie.msg = msg; | |
2889 | cookie.idx = key_idx; | |
2890 | ||
2891 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
2892 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2893 | goto nla_put_failure; | |
2894 | if (mac_addr && | |
2895 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2896 | goto nla_put_failure; | |
2897 | ||
2898 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, | |
2899 | get_key_callback); | |
2900 | ||
2901 | if (err) | |
2902 | goto free_msg; | |
2903 | ||
2904 | if (cookie.error) | |
2905 | goto nla_put_failure; | |
2906 | ||
2907 | genlmsg_end(msg, hdr); | |
2908 | return genlmsg_reply(msg, info); | |
2909 | ||
2910 | nla_put_failure: | |
2911 | err = -ENOBUFS; | |
2912 | free_msg: | |
2913 | nlmsg_free(msg); | |
2914 | return err; | |
2915 | } | |
2916 | ||
2917 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2918 | { | |
2919 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2920 | struct key_parse key; | |
2921 | int err; | |
2922 | struct net_device *dev = info->user_ptr[1]; | |
2923 | ||
2924 | err = nl80211_parse_key(info, &key); | |
2925 | if (err) | |
2926 | return err; | |
2927 | ||
2928 | if (key.idx < 0) | |
2929 | return -EINVAL; | |
2930 | ||
2931 | /* only support setting default key */ | |
2932 | if (!key.def && !key.defmgmt) | |
2933 | return -EINVAL; | |
2934 | ||
2935 | wdev_lock(dev->ieee80211_ptr); | |
2936 | ||
2937 | if (key.def) { | |
2938 | if (!rdev->ops->set_default_key) { | |
2939 | err = -EOPNOTSUPP; | |
2940 | goto out; | |
2941 | } | |
2942 | ||
2943 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2944 | if (err) | |
2945 | goto out; | |
2946 | ||
2947 | err = rdev_set_default_key(rdev, dev, key.idx, | |
2948 | key.def_uni, key.def_multi); | |
2949 | ||
2950 | if (err) | |
2951 | goto out; | |
2952 | ||
2953 | #ifdef CONFIG_CFG80211_WEXT | |
2954 | dev->ieee80211_ptr->wext.default_key = key.idx; | |
2955 | #endif | |
2956 | } else { | |
2957 | if (key.def_uni || !key.def_multi) { | |
2958 | err = -EINVAL; | |
2959 | goto out; | |
2960 | } | |
2961 | ||
2962 | if (!rdev->ops->set_default_mgmt_key) { | |
2963 | err = -EOPNOTSUPP; | |
2964 | goto out; | |
2965 | } | |
2966 | ||
2967 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2968 | if (err) | |
2969 | goto out; | |
2970 | ||
2971 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); | |
2972 | if (err) | |
2973 | goto out; | |
2974 | ||
2975 | #ifdef CONFIG_CFG80211_WEXT | |
2976 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
2977 | #endif | |
2978 | } | |
2979 | ||
2980 | out: | |
2981 | wdev_unlock(dev->ieee80211_ptr); | |
2982 | ||
2983 | return err; | |
2984 | } | |
2985 | ||
2986 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
2987 | { | |
2988 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2989 | int err; | |
2990 | struct net_device *dev = info->user_ptr[1]; | |
2991 | struct key_parse key; | |
2992 | const u8 *mac_addr = NULL; | |
2993 | ||
2994 | err = nl80211_parse_key(info, &key); | |
2995 | if (err) | |
2996 | return err; | |
2997 | ||
2998 | if (!key.p.key) | |
2999 | return -EINVAL; | |
3000 | ||
3001 | if (info->attrs[NL80211_ATTR_MAC]) | |
3002 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3003 | ||
3004 | if (key.type == -1) { | |
3005 | if (mac_addr) | |
3006 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
3007 | else | |
3008 | key.type = NL80211_KEYTYPE_GROUP; | |
3009 | } | |
3010 | ||
3011 | /* for now */ | |
3012 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
3013 | key.type != NL80211_KEYTYPE_GROUP) | |
3014 | return -EINVAL; | |
3015 | ||
3016 | if (!rdev->ops->add_key) | |
3017 | return -EOPNOTSUPP; | |
3018 | ||
3019 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, | |
3020 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3021 | mac_addr)) | |
3022 | return -EINVAL; | |
3023 | ||
3024 | wdev_lock(dev->ieee80211_ptr); | |
3025 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
3026 | if (!err) | |
3027 | err = rdev_add_key(rdev, dev, key.idx, | |
3028 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3029 | mac_addr, &key.p); | |
3030 | wdev_unlock(dev->ieee80211_ptr); | |
3031 | ||
3032 | return err; | |
3033 | } | |
3034 | ||
3035 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
3036 | { | |
3037 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3038 | int err; | |
3039 | struct net_device *dev = info->user_ptr[1]; | |
3040 | u8 *mac_addr = NULL; | |
3041 | struct key_parse key; | |
3042 | ||
3043 | err = nl80211_parse_key(info, &key); | |
3044 | if (err) | |
3045 | return err; | |
3046 | ||
3047 | if (info->attrs[NL80211_ATTR_MAC]) | |
3048 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3049 | ||
3050 | if (key.type == -1) { | |
3051 | if (mac_addr) | |
3052 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
3053 | else | |
3054 | key.type = NL80211_KEYTYPE_GROUP; | |
3055 | } | |
3056 | ||
3057 | /* for now */ | |
3058 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
3059 | key.type != NL80211_KEYTYPE_GROUP) | |
3060 | return -EINVAL; | |
3061 | ||
3062 | if (!rdev->ops->del_key) | |
3063 | return -EOPNOTSUPP; | |
3064 | ||
3065 | wdev_lock(dev->ieee80211_ptr); | |
3066 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
3067 | ||
3068 | if (key.type == NL80211_KEYTYPE_GROUP && mac_addr && | |
3069 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
3070 | err = -ENOENT; | |
3071 | ||
3072 | if (!err) | |
3073 | err = rdev_del_key(rdev, dev, key.idx, | |
3074 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3075 | mac_addr); | |
3076 | ||
3077 | #ifdef CONFIG_CFG80211_WEXT | |
3078 | if (!err) { | |
3079 | if (key.idx == dev->ieee80211_ptr->wext.default_key) | |
3080 | dev->ieee80211_ptr->wext.default_key = -1; | |
3081 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) | |
3082 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; | |
3083 | } | |
3084 | #endif | |
3085 | wdev_unlock(dev->ieee80211_ptr); | |
3086 | ||
3087 | return err; | |
3088 | } | |
3089 | ||
3090 | /* This function returns an error or the number of nested attributes */ | |
3091 | static int validate_acl_mac_addrs(struct nlattr *nl_attr) | |
3092 | { | |
3093 | struct nlattr *attr; | |
3094 | int n_entries = 0, tmp; | |
3095 | ||
3096 | nla_for_each_nested(attr, nl_attr, tmp) { | |
3097 | if (nla_len(attr) != ETH_ALEN) | |
3098 | return -EINVAL; | |
3099 | ||
3100 | n_entries++; | |
3101 | } | |
3102 | ||
3103 | return n_entries; | |
3104 | } | |
3105 | ||
3106 | /* | |
3107 | * This function parses ACL information and allocates memory for ACL data. | |
3108 | * On successful return, the calling function is responsible to free the | |
3109 | * ACL buffer returned by this function. | |
3110 | */ | |
3111 | static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy, | |
3112 | struct genl_info *info) | |
3113 | { | |
3114 | enum nl80211_acl_policy acl_policy; | |
3115 | struct nlattr *attr; | |
3116 | struct cfg80211_acl_data *acl; | |
3117 | int i = 0, n_entries, tmp; | |
3118 | ||
3119 | if (!wiphy->max_acl_mac_addrs) | |
3120 | return ERR_PTR(-EOPNOTSUPP); | |
3121 | ||
3122 | if (!info->attrs[NL80211_ATTR_ACL_POLICY]) | |
3123 | return ERR_PTR(-EINVAL); | |
3124 | ||
3125 | acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]); | |
3126 | if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED && | |
3127 | acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED) | |
3128 | return ERR_PTR(-EINVAL); | |
3129 | ||
3130 | if (!info->attrs[NL80211_ATTR_MAC_ADDRS]) | |
3131 | return ERR_PTR(-EINVAL); | |
3132 | ||
3133 | n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]); | |
3134 | if (n_entries < 0) | |
3135 | return ERR_PTR(n_entries); | |
3136 | ||
3137 | if (n_entries > wiphy->max_acl_mac_addrs) | |
3138 | return ERR_PTR(-ENOTSUPP); | |
3139 | ||
3140 | acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries), | |
3141 | GFP_KERNEL); | |
3142 | if (!acl) | |
3143 | return ERR_PTR(-ENOMEM); | |
3144 | ||
3145 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) { | |
3146 | memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN); | |
3147 | i++; | |
3148 | } | |
3149 | ||
3150 | acl->n_acl_entries = n_entries; | |
3151 | acl->acl_policy = acl_policy; | |
3152 | ||
3153 | return acl; | |
3154 | } | |
3155 | ||
3156 | static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info) | |
3157 | { | |
3158 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3159 | struct net_device *dev = info->user_ptr[1]; | |
3160 | struct cfg80211_acl_data *acl; | |
3161 | int err; | |
3162 | ||
3163 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3164 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3165 | return -EOPNOTSUPP; | |
3166 | ||
3167 | if (!dev->ieee80211_ptr->beacon_interval) | |
3168 | return -EINVAL; | |
3169 | ||
3170 | acl = parse_acl_data(&rdev->wiphy, info); | |
3171 | if (IS_ERR(acl)) | |
3172 | return PTR_ERR(acl); | |
3173 | ||
3174 | err = rdev_set_mac_acl(rdev, dev, acl); | |
3175 | ||
3176 | kfree(acl); | |
3177 | ||
3178 | return err; | |
3179 | } | |
3180 | ||
3181 | static int nl80211_parse_beacon(struct nlattr *attrs[], | |
3182 | struct cfg80211_beacon_data *bcn) | |
3183 | { | |
3184 | bool haveinfo = false; | |
3185 | ||
3186 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) || | |
3187 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) || | |
3188 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
3189 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
3190 | return -EINVAL; | |
3191 | ||
3192 | memset(bcn, 0, sizeof(*bcn)); | |
3193 | ||
3194 | if (attrs[NL80211_ATTR_BEACON_HEAD]) { | |
3195 | bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]); | |
3196 | bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]); | |
3197 | if (!bcn->head_len) | |
3198 | return -EINVAL; | |
3199 | haveinfo = true; | |
3200 | } | |
3201 | ||
3202 | if (attrs[NL80211_ATTR_BEACON_TAIL]) { | |
3203 | bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]); | |
3204 | bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]); | |
3205 | haveinfo = true; | |
3206 | } | |
3207 | ||
3208 | if (!haveinfo) | |
3209 | return -EINVAL; | |
3210 | ||
3211 | if (attrs[NL80211_ATTR_IE]) { | |
3212 | bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]); | |
3213 | bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]); | |
3214 | } | |
3215 | ||
3216 | if (attrs[NL80211_ATTR_IE_PROBE_RESP]) { | |
3217 | bcn->proberesp_ies = | |
3218 | nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]); | |
3219 | bcn->proberesp_ies_len = | |
3220 | nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]); | |
3221 | } | |
3222 | ||
3223 | if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) { | |
3224 | bcn->assocresp_ies = | |
3225 | nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]); | |
3226 | bcn->assocresp_ies_len = | |
3227 | nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]); | |
3228 | } | |
3229 | ||
3230 | if (attrs[NL80211_ATTR_PROBE_RESP]) { | |
3231 | bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]); | |
3232 | bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]); | |
3233 | } | |
3234 | ||
3235 | return 0; | |
3236 | } | |
3237 | ||
3238 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, | |
3239 | struct cfg80211_ap_settings *params) | |
3240 | { | |
3241 | struct wireless_dev *wdev; | |
3242 | bool ret = false; | |
3243 | ||
3244 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
3245 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
3246 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
3247 | continue; | |
3248 | ||
3249 | if (!wdev->preset_chandef.chan) | |
3250 | continue; | |
3251 | ||
3252 | params->chandef = wdev->preset_chandef; | |
3253 | ret = true; | |
3254 | break; | |
3255 | } | |
3256 | ||
3257 | return ret; | |
3258 | } | |
3259 | ||
3260 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, | |
3261 | enum nl80211_auth_type auth_type, | |
3262 | enum nl80211_commands cmd) | |
3263 | { | |
3264 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
3265 | return false; | |
3266 | ||
3267 | switch (cmd) { | |
3268 | case NL80211_CMD_AUTHENTICATE: | |
3269 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
3270 | auth_type == NL80211_AUTHTYPE_SAE) | |
3271 | return false; | |
3272 | return true; | |
3273 | case NL80211_CMD_CONNECT: | |
3274 | case NL80211_CMD_START_AP: | |
3275 | /* SAE not supported yet */ | |
3276 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
3277 | return false; | |
3278 | return true; | |
3279 | default: | |
3280 | return false; | |
3281 | } | |
3282 | } | |
3283 | ||
3284 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) | |
3285 | { | |
3286 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3287 | struct net_device *dev = info->user_ptr[1]; | |
3288 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3289 | struct cfg80211_ap_settings params; | |
3290 | int err; | |
3291 | ||
3292 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3293 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3294 | return -EOPNOTSUPP; | |
3295 | ||
3296 | if (!rdev->ops->start_ap) | |
3297 | return -EOPNOTSUPP; | |
3298 | ||
3299 | if (wdev->beacon_interval) | |
3300 | return -EALREADY; | |
3301 | ||
3302 | memset(¶ms, 0, sizeof(params)); | |
3303 | ||
3304 | /* these are required for START_AP */ | |
3305 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
3306 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
3307 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
3308 | return -EINVAL; | |
3309 | ||
3310 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon); | |
3311 | if (err) | |
3312 | return err; | |
3313 | ||
3314 | params.beacon_interval = | |
3315 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3316 | params.dtim_period = | |
3317 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
3318 | ||
3319 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
3320 | if (err) | |
3321 | return err; | |
3322 | ||
3323 | /* | |
3324 | * In theory, some of these attributes should be required here | |
3325 | * but since they were not used when the command was originally | |
3326 | * added, keep them optional for old user space programs to let | |
3327 | * them continue to work with drivers that do not need the | |
3328 | * additional information -- drivers must check! | |
3329 | */ | |
3330 | if (info->attrs[NL80211_ATTR_SSID]) { | |
3331 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3332 | params.ssid_len = | |
3333 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3334 | if (params.ssid_len == 0 || | |
3335 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
3336 | return -EINVAL; | |
3337 | } | |
3338 | ||
3339 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
3340 | params.hidden_ssid = nla_get_u32( | |
3341 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
3342 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
3343 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
3344 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
3345 | return -EINVAL; | |
3346 | } | |
3347 | ||
3348 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
3349 | ||
3350 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3351 | params.auth_type = nla_get_u32( | |
3352 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
3353 | if (!nl80211_valid_auth_type(rdev, params.auth_type, | |
3354 | NL80211_CMD_START_AP)) | |
3355 | return -EINVAL; | |
3356 | } else | |
3357 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3358 | ||
3359 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
3360 | NL80211_MAX_NR_CIPHER_SUITES); | |
3361 | if (err) | |
3362 | return err; | |
3363 | ||
3364 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { | |
3365 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
3366 | return -EOPNOTSUPP; | |
3367 | params.inactivity_timeout = nla_get_u16( | |
3368 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
3369 | } | |
3370 | ||
3371 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { | |
3372 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3373 | return -EINVAL; | |
3374 | params.p2p_ctwindow = | |
3375 | nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
3376 | if (params.p2p_ctwindow > 127) | |
3377 | return -EINVAL; | |
3378 | if (params.p2p_ctwindow != 0 && | |
3379 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
3380 | return -EINVAL; | |
3381 | } | |
3382 | ||
3383 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
3384 | u8 tmp; | |
3385 | ||
3386 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3387 | return -EINVAL; | |
3388 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
3389 | if (tmp > 1) | |
3390 | return -EINVAL; | |
3391 | params.p2p_opp_ps = tmp; | |
3392 | if (params.p2p_opp_ps != 0 && | |
3393 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
3394 | return -EINVAL; | |
3395 | } | |
3396 | ||
3397 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3398 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); | |
3399 | if (err) | |
3400 | return err; | |
3401 | } else if (wdev->preset_chandef.chan) { | |
3402 | params.chandef = wdev->preset_chandef; | |
3403 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) | |
3404 | return -EINVAL; | |
3405 | ||
3406 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef, | |
3407 | wdev->iftype)) | |
3408 | return -EINVAL; | |
3409 | ||
3410 | if (info->attrs[NL80211_ATTR_ACL_POLICY]) { | |
3411 | params.acl = parse_acl_data(&rdev->wiphy, info); | |
3412 | if (IS_ERR(params.acl)) | |
3413 | return PTR_ERR(params.acl); | |
3414 | } | |
3415 | ||
3416 | if (info->attrs[NL80211_ATTR_SMPS_MODE]) { | |
3417 | params.smps_mode = | |
3418 | nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]); | |
3419 | switch (params.smps_mode) { | |
3420 | case NL80211_SMPS_OFF: | |
3421 | break; | |
3422 | case NL80211_SMPS_STATIC: | |
3423 | if (!(rdev->wiphy.features & | |
3424 | NL80211_FEATURE_STATIC_SMPS)) | |
3425 | return -EINVAL; | |
3426 | break; | |
3427 | case NL80211_SMPS_DYNAMIC: | |
3428 | if (!(rdev->wiphy.features & | |
3429 | NL80211_FEATURE_DYNAMIC_SMPS)) | |
3430 | return -EINVAL; | |
3431 | break; | |
3432 | default: | |
3433 | return -EINVAL; | |
3434 | } | |
3435 | } else { | |
3436 | params.smps_mode = NL80211_SMPS_OFF; | |
3437 | } | |
3438 | ||
3439 | wdev_lock(wdev); | |
3440 | err = rdev_start_ap(rdev, dev, ¶ms); | |
3441 | if (!err) { | |
3442 | wdev->preset_chandef = params.chandef; | |
3443 | wdev->beacon_interval = params.beacon_interval; | |
3444 | wdev->chandef = params.chandef; | |
3445 | wdev->ssid_len = params.ssid_len; | |
3446 | memcpy(wdev->ssid, params.ssid, wdev->ssid_len); | |
3447 | } | |
3448 | wdev_unlock(wdev); | |
3449 | ||
3450 | kfree(params.acl); | |
3451 | ||
3452 | return err; | |
3453 | } | |
3454 | ||
3455 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) | |
3456 | { | |
3457 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3458 | struct net_device *dev = info->user_ptr[1]; | |
3459 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3460 | struct cfg80211_beacon_data params; | |
3461 | int err; | |
3462 | ||
3463 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3464 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3465 | return -EOPNOTSUPP; | |
3466 | ||
3467 | if (!rdev->ops->change_beacon) | |
3468 | return -EOPNOTSUPP; | |
3469 | ||
3470 | if (!wdev->beacon_interval) | |
3471 | return -EINVAL; | |
3472 | ||
3473 | err = nl80211_parse_beacon(info->attrs, ¶ms); | |
3474 | if (err) | |
3475 | return err; | |
3476 | ||
3477 | wdev_lock(wdev); | |
3478 | err = rdev_change_beacon(rdev, dev, ¶ms); | |
3479 | wdev_unlock(wdev); | |
3480 | ||
3481 | return err; | |
3482 | } | |
3483 | ||
3484 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
3485 | { | |
3486 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3487 | struct net_device *dev = info->user_ptr[1]; | |
3488 | ||
3489 | return cfg80211_stop_ap(rdev, dev, false); | |
3490 | } | |
3491 | ||
3492 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { | |
3493 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
3494 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
3495 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
3496 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, | |
3497 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, | |
3498 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, | |
3499 | }; | |
3500 | ||
3501 | static int parse_station_flags(struct genl_info *info, | |
3502 | enum nl80211_iftype iftype, | |
3503 | struct station_parameters *params) | |
3504 | { | |
3505 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
3506 | struct nlattr *nla; | |
3507 | int flag; | |
3508 | ||
3509 | /* | |
3510 | * Try parsing the new attribute first so userspace | |
3511 | * can specify both for older kernels. | |
3512 | */ | |
3513 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
3514 | if (nla) { | |
3515 | struct nl80211_sta_flag_update *sta_flags; | |
3516 | ||
3517 | sta_flags = nla_data(nla); | |
3518 | params->sta_flags_mask = sta_flags->mask; | |
3519 | params->sta_flags_set = sta_flags->set; | |
3520 | params->sta_flags_set &= params->sta_flags_mask; | |
3521 | if ((params->sta_flags_mask | | |
3522 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
3523 | return -EINVAL; | |
3524 | return 0; | |
3525 | } | |
3526 | ||
3527 | /* if present, parse the old attribute */ | |
3528 | ||
3529 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; | |
3530 | if (!nla) | |
3531 | return 0; | |
3532 | ||
3533 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
3534 | nla, sta_flags_policy)) | |
3535 | return -EINVAL; | |
3536 | ||
3537 | /* | |
3538 | * Only allow certain flags for interface types so that | |
3539 | * other attributes are silently ignored. Remember that | |
3540 | * this is backward compatibility code with old userspace | |
3541 | * and shouldn't be hit in other cases anyway. | |
3542 | */ | |
3543 | switch (iftype) { | |
3544 | case NL80211_IFTYPE_AP: | |
3545 | case NL80211_IFTYPE_AP_VLAN: | |
3546 | case NL80211_IFTYPE_P2P_GO: | |
3547 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3548 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3549 | BIT(NL80211_STA_FLAG_WME) | | |
3550 | BIT(NL80211_STA_FLAG_MFP); | |
3551 | break; | |
3552 | case NL80211_IFTYPE_P2P_CLIENT: | |
3553 | case NL80211_IFTYPE_STATION: | |
3554 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3555 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3556 | break; | |
3557 | case NL80211_IFTYPE_MESH_POINT: | |
3558 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3559 | BIT(NL80211_STA_FLAG_MFP) | | |
3560 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
3561 | default: | |
3562 | return -EINVAL; | |
3563 | } | |
3564 | ||
3565 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { | |
3566 | if (flags[flag]) { | |
3567 | params->sta_flags_set |= (1<<flag); | |
3568 | ||
3569 | /* no longer support new API additions in old API */ | |
3570 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
3571 | return -EINVAL; | |
3572 | } | |
3573 | } | |
3574 | ||
3575 | return 0; | |
3576 | } | |
3577 | ||
3578 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, | |
3579 | int attr) | |
3580 | { | |
3581 | struct nlattr *rate; | |
3582 | u32 bitrate; | |
3583 | u16 bitrate_compat; | |
3584 | enum nl80211_attrs rate_flg; | |
3585 | ||
3586 | rate = nla_nest_start(msg, attr); | |
3587 | if (!rate) | |
3588 | return false; | |
3589 | ||
3590 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
3591 | bitrate = cfg80211_calculate_bitrate(info); | |
3592 | /* report 16-bit bitrate only if we can */ | |
3593 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
3594 | if (bitrate > 0 && | |
3595 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) | |
3596 | return false; | |
3597 | if (bitrate_compat > 0 && | |
3598 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) | |
3599 | return false; | |
3600 | ||
3601 | switch (info->bw) { | |
3602 | case RATE_INFO_BW_5: | |
3603 | rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH; | |
3604 | break; | |
3605 | case RATE_INFO_BW_10: | |
3606 | rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH; | |
3607 | break; | |
3608 | default: | |
3609 | WARN_ON(1); | |
3610 | /* fall through */ | |
3611 | case RATE_INFO_BW_20: | |
3612 | rate_flg = 0; | |
3613 | break; | |
3614 | case RATE_INFO_BW_40: | |
3615 | rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH; | |
3616 | break; | |
3617 | case RATE_INFO_BW_80: | |
3618 | rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH; | |
3619 | break; | |
3620 | case RATE_INFO_BW_160: | |
3621 | rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH; | |
3622 | break; | |
3623 | } | |
3624 | ||
3625 | if (rate_flg && nla_put_flag(msg, rate_flg)) | |
3626 | return false; | |
3627 | ||
3628 | if (info->flags & RATE_INFO_FLAGS_MCS) { | |
3629 | if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) | |
3630 | return false; | |
3631 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && | |
3632 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3633 | return false; | |
3634 | } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) { | |
3635 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs)) | |
3636 | return false; | |
3637 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss)) | |
3638 | return false; | |
3639 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && | |
3640 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3641 | return false; | |
3642 | } | |
3643 | ||
3644 | nla_nest_end(msg, rate); | |
3645 | return true; | |
3646 | } | |
3647 | ||
3648 | static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal, | |
3649 | int id) | |
3650 | { | |
3651 | void *attr; | |
3652 | int i = 0; | |
3653 | ||
3654 | if (!mask) | |
3655 | return true; | |
3656 | ||
3657 | attr = nla_nest_start(msg, id); | |
3658 | if (!attr) | |
3659 | return false; | |
3660 | ||
3661 | for (i = 0; i < IEEE80211_MAX_CHAINS; i++) { | |
3662 | if (!(mask & BIT(i))) | |
3663 | continue; | |
3664 | ||
3665 | if (nla_put_u8(msg, i, signal[i])) | |
3666 | return false; | |
3667 | } | |
3668 | ||
3669 | nla_nest_end(msg, attr); | |
3670 | ||
3671 | return true; | |
3672 | } | |
3673 | ||
3674 | static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, | |
3675 | u32 seq, int flags, | |
3676 | struct cfg80211_registered_device *rdev, | |
3677 | struct net_device *dev, | |
3678 | const u8 *mac_addr, struct station_info *sinfo) | |
3679 | { | |
3680 | void *hdr; | |
3681 | struct nlattr *sinfoattr, *bss_param; | |
3682 | ||
3683 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
3684 | if (!hdr) | |
3685 | return -1; | |
3686 | ||
3687 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
3688 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
3689 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
3690 | goto nla_put_failure; | |
3691 | ||
3692 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); | |
3693 | if (!sinfoattr) | |
3694 | goto nla_put_failure; | |
3695 | ||
3696 | #define PUT_SINFO(attr, memb, type) do { \ | |
3697 | if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \ | |
3698 | nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \ | |
3699 | sinfo->memb)) \ | |
3700 | goto nla_put_failure; \ | |
3701 | } while (0) | |
3702 | ||
3703 | PUT_SINFO(CONNECTED_TIME, connected_time, u32); | |
3704 | PUT_SINFO(INACTIVE_TIME, inactive_time, u32); | |
3705 | ||
3706 | if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) | | |
3707 | BIT(NL80211_STA_INFO_RX_BYTES64)) && | |
3708 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, | |
3709 | (u32)sinfo->rx_bytes)) | |
3710 | goto nla_put_failure; | |
3711 | ||
3712 | if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) | | |
3713 | BIT(NL80211_STA_INFO_TX_BYTES64)) && | |
3714 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, | |
3715 | (u32)sinfo->tx_bytes)) | |
3716 | goto nla_put_failure; | |
3717 | ||
3718 | PUT_SINFO(RX_BYTES64, rx_bytes, u64); | |
3719 | PUT_SINFO(TX_BYTES64, tx_bytes, u64); | |
3720 | PUT_SINFO(LLID, llid, u16); | |
3721 | PUT_SINFO(PLID, plid, u16); | |
3722 | PUT_SINFO(PLINK_STATE, plink_state, u8); | |
3723 | ||
3724 | switch (rdev->wiphy.signal_type) { | |
3725 | case CFG80211_SIGNAL_TYPE_MBM: | |
3726 | PUT_SINFO(SIGNAL, signal, u8); | |
3727 | PUT_SINFO(SIGNAL_AVG, signal_avg, u8); | |
3728 | break; | |
3729 | default: | |
3730 | break; | |
3731 | } | |
3732 | if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) { | |
3733 | if (!nl80211_put_signal(msg, sinfo->chains, | |
3734 | sinfo->chain_signal, | |
3735 | NL80211_STA_INFO_CHAIN_SIGNAL)) | |
3736 | goto nla_put_failure; | |
3737 | } | |
3738 | if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) { | |
3739 | if (!nl80211_put_signal(msg, sinfo->chains, | |
3740 | sinfo->chain_signal_avg, | |
3741 | NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) | |
3742 | goto nla_put_failure; | |
3743 | } | |
3744 | if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) { | |
3745 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, | |
3746 | NL80211_STA_INFO_TX_BITRATE)) | |
3747 | goto nla_put_failure; | |
3748 | } | |
3749 | if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) { | |
3750 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
3751 | NL80211_STA_INFO_RX_BITRATE)) | |
3752 | goto nla_put_failure; | |
3753 | } | |
3754 | ||
3755 | PUT_SINFO(RX_PACKETS, rx_packets, u32); | |
3756 | PUT_SINFO(TX_PACKETS, tx_packets, u32); | |
3757 | PUT_SINFO(TX_RETRIES, tx_retries, u32); | |
3758 | PUT_SINFO(TX_FAILED, tx_failed, u32); | |
3759 | PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32); | |
3760 | PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32); | |
3761 | PUT_SINFO(LOCAL_PM, local_pm, u32); | |
3762 | PUT_SINFO(PEER_PM, peer_pm, u32); | |
3763 | PUT_SINFO(NONPEER_PM, nonpeer_pm, u32); | |
3764 | ||
3765 | if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) { | |
3766 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
3767 | if (!bss_param) | |
3768 | goto nla_put_failure; | |
3769 | ||
3770 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && | |
3771 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
3772 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
3773 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
3774 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
3775 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
3776 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
3777 | sinfo->bss_param.dtim_period) || | |
3778 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
3779 | sinfo->bss_param.beacon_interval)) | |
3780 | goto nla_put_failure; | |
3781 | ||
3782 | nla_nest_end(msg, bss_param); | |
3783 | } | |
3784 | if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) && | |
3785 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, | |
3786 | sizeof(struct nl80211_sta_flag_update), | |
3787 | &sinfo->sta_flags)) | |
3788 | goto nla_put_failure; | |
3789 | ||
3790 | PUT_SINFO(T_OFFSET, t_offset, u64); | |
3791 | PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64); | |
3792 | PUT_SINFO(BEACON_RX, rx_beacon, u64); | |
3793 | PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8); | |
3794 | ||
3795 | #undef PUT_SINFO | |
3796 | ||
3797 | if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) { | |
3798 | struct nlattr *tidsattr; | |
3799 | int tid; | |
3800 | ||
3801 | tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS); | |
3802 | if (!tidsattr) | |
3803 | goto nla_put_failure; | |
3804 | ||
3805 | for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { | |
3806 | struct cfg80211_tid_stats *tidstats; | |
3807 | struct nlattr *tidattr; | |
3808 | ||
3809 | tidstats = &sinfo->pertid[tid]; | |
3810 | ||
3811 | if (!tidstats->filled) | |
3812 | continue; | |
3813 | ||
3814 | tidattr = nla_nest_start(msg, tid + 1); | |
3815 | if (!tidattr) | |
3816 | goto nla_put_failure; | |
3817 | ||
3818 | #define PUT_TIDVAL(attr, memb, type) do { \ | |
3819 | if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \ | |
3820 | nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \ | |
3821 | tidstats->memb)) \ | |
3822 | goto nla_put_failure; \ | |
3823 | } while (0) | |
3824 | ||
3825 | PUT_TIDVAL(RX_MSDU, rx_msdu, u64); | |
3826 | PUT_TIDVAL(TX_MSDU, tx_msdu, u64); | |
3827 | PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64); | |
3828 | PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64); | |
3829 | ||
3830 | #undef PUT_TIDVAL | |
3831 | nla_nest_end(msg, tidattr); | |
3832 | } | |
3833 | ||
3834 | nla_nest_end(msg, tidsattr); | |
3835 | } | |
3836 | ||
3837 | nla_nest_end(msg, sinfoattr); | |
3838 | ||
3839 | if (sinfo->assoc_req_ies_len && | |
3840 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, | |
3841 | sinfo->assoc_req_ies)) | |
3842 | goto nla_put_failure; | |
3843 | ||
3844 | genlmsg_end(msg, hdr); | |
3845 | return 0; | |
3846 | ||
3847 | nla_put_failure: | |
3848 | genlmsg_cancel(msg, hdr); | |
3849 | return -EMSGSIZE; | |
3850 | } | |
3851 | ||
3852 | static int nl80211_dump_station(struct sk_buff *skb, | |
3853 | struct netlink_callback *cb) | |
3854 | { | |
3855 | struct station_info sinfo; | |
3856 | struct cfg80211_registered_device *rdev; | |
3857 | struct wireless_dev *wdev; | |
3858 | u8 mac_addr[ETH_ALEN]; | |
3859 | int sta_idx = cb->args[2]; | |
3860 | int err; | |
3861 | ||
3862 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); | |
3863 | if (err) | |
3864 | return err; | |
3865 | ||
3866 | if (!wdev->netdev) { | |
3867 | err = -EINVAL; | |
3868 | goto out_err; | |
3869 | } | |
3870 | ||
3871 | if (!rdev->ops->dump_station) { | |
3872 | err = -EOPNOTSUPP; | |
3873 | goto out_err; | |
3874 | } | |
3875 | ||
3876 | while (1) { | |
3877 | memset(&sinfo, 0, sizeof(sinfo)); | |
3878 | err = rdev_dump_station(rdev, wdev->netdev, sta_idx, | |
3879 | mac_addr, &sinfo); | |
3880 | if (err == -ENOENT) | |
3881 | break; | |
3882 | if (err) | |
3883 | goto out_err; | |
3884 | ||
3885 | if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION, | |
3886 | NETLINK_CB(cb->skb).portid, | |
3887 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3888 | rdev, wdev->netdev, mac_addr, | |
3889 | &sinfo) < 0) | |
3890 | goto out; | |
3891 | ||
3892 | sta_idx++; | |
3893 | } | |
3894 | ||
3895 | ||
3896 | out: | |
3897 | cb->args[2] = sta_idx; | |
3898 | err = skb->len; | |
3899 | out_err: | |
3900 | nl80211_finish_wdev_dump(rdev); | |
3901 | ||
3902 | return err; | |
3903 | } | |
3904 | ||
3905 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) | |
3906 | { | |
3907 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3908 | struct net_device *dev = info->user_ptr[1]; | |
3909 | struct station_info sinfo; | |
3910 | struct sk_buff *msg; | |
3911 | u8 *mac_addr = NULL; | |
3912 | int err; | |
3913 | ||
3914 | memset(&sinfo, 0, sizeof(sinfo)); | |
3915 | ||
3916 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3917 | return -EINVAL; | |
3918 | ||
3919 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3920 | ||
3921 | if (!rdev->ops->get_station) | |
3922 | return -EOPNOTSUPP; | |
3923 | ||
3924 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); | |
3925 | if (err) | |
3926 | return err; | |
3927 | ||
3928 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3929 | if (!msg) | |
3930 | return -ENOMEM; | |
3931 | ||
3932 | if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, | |
3933 | info->snd_portid, info->snd_seq, 0, | |
3934 | rdev, dev, mac_addr, &sinfo) < 0) { | |
3935 | nlmsg_free(msg); | |
3936 | return -ENOBUFS; | |
3937 | } | |
3938 | ||
3939 | return genlmsg_reply(msg, info); | |
3940 | } | |
3941 | ||
3942 | int cfg80211_check_station_change(struct wiphy *wiphy, | |
3943 | struct station_parameters *params, | |
3944 | enum cfg80211_station_type statype) | |
3945 | { | |
3946 | if (params->listen_interval != -1) | |
3947 | return -EINVAL; | |
3948 | if (params->aid && | |
3949 | !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3950 | return -EINVAL; | |
3951 | ||
3952 | /* When you run into this, adjust the code below for the new flag */ | |
3953 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
3954 | ||
3955 | switch (statype) { | |
3956 | case CFG80211_STA_MESH_PEER_KERNEL: | |
3957 | case CFG80211_STA_MESH_PEER_USER: | |
3958 | /* | |
3959 | * No ignoring the TDLS flag here -- the userspace mesh | |
3960 | * code doesn't have the bug of including TDLS in the | |
3961 | * mask everywhere. | |
3962 | */ | |
3963 | if (params->sta_flags_mask & | |
3964 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3965 | BIT(NL80211_STA_FLAG_MFP) | | |
3966 | BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
3967 | return -EINVAL; | |
3968 | break; | |
3969 | case CFG80211_STA_TDLS_PEER_SETUP: | |
3970 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
3971 | if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3972 | return -EINVAL; | |
3973 | /* ignore since it can't change */ | |
3974 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3975 | break; | |
3976 | default: | |
3977 | /* disallow mesh-specific things */ | |
3978 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) | |
3979 | return -EINVAL; | |
3980 | if (params->local_pm) | |
3981 | return -EINVAL; | |
3982 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) | |
3983 | return -EINVAL; | |
3984 | } | |
3985 | ||
3986 | if (statype != CFG80211_STA_TDLS_PEER_SETUP && | |
3987 | statype != CFG80211_STA_TDLS_PEER_ACTIVE) { | |
3988 | /* TDLS can't be set, ... */ | |
3989 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3990 | return -EINVAL; | |
3991 | /* | |
3992 | * ... but don't bother the driver with it. This works around | |
3993 | * a hostapd/wpa_supplicant issue -- it always includes the | |
3994 | * TLDS_PEER flag in the mask even for AP mode. | |
3995 | */ | |
3996 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3997 | } | |
3998 | ||
3999 | if (statype != CFG80211_STA_TDLS_PEER_SETUP) { | |
4000 | /* reject other things that can't change */ | |
4001 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) | |
4002 | return -EINVAL; | |
4003 | if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY) | |
4004 | return -EINVAL; | |
4005 | if (params->supported_rates) | |
4006 | return -EINVAL; | |
4007 | if (params->ext_capab || params->ht_capa || params->vht_capa) | |
4008 | return -EINVAL; | |
4009 | } | |
4010 | ||
4011 | if (statype != CFG80211_STA_AP_CLIENT) { | |
4012 | if (params->vlan) | |
4013 | return -EINVAL; | |
4014 | } | |
4015 | ||
4016 | switch (statype) { | |
4017 | case CFG80211_STA_AP_MLME_CLIENT: | |
4018 | /* Use this only for authorizing/unauthorizing a station */ | |
4019 | if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
4020 | return -EOPNOTSUPP; | |
4021 | break; | |
4022 | case CFG80211_STA_AP_CLIENT: | |
4023 | /* accept only the listed bits */ | |
4024 | if (params->sta_flags_mask & | |
4025 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
4026 | BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4027 | BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
4028 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
4029 | BIT(NL80211_STA_FLAG_WME) | | |
4030 | BIT(NL80211_STA_FLAG_MFP))) | |
4031 | return -EINVAL; | |
4032 | ||
4033 | /* but authenticated/associated only if driver handles it */ | |
4034 | if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
4035 | params->sta_flags_mask & | |
4036 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4037 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
4038 | return -EINVAL; | |
4039 | break; | |
4040 | case CFG80211_STA_IBSS: | |
4041 | case CFG80211_STA_AP_STA: | |
4042 | /* reject any changes other than AUTHORIZED */ | |
4043 | if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
4044 | return -EINVAL; | |
4045 | break; | |
4046 | case CFG80211_STA_TDLS_PEER_SETUP: | |
4047 | /* reject any changes other than AUTHORIZED or WME */ | |
4048 | if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
4049 | BIT(NL80211_STA_FLAG_WME))) | |
4050 | return -EINVAL; | |
4051 | /* force (at least) rates when authorizing */ | |
4052 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) && | |
4053 | !params->supported_rates) | |
4054 | return -EINVAL; | |
4055 | break; | |
4056 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
4057 | /* reject any changes */ | |
4058 | return -EINVAL; | |
4059 | case CFG80211_STA_MESH_PEER_KERNEL: | |
4060 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) | |
4061 | return -EINVAL; | |
4062 | break; | |
4063 | case CFG80211_STA_MESH_PEER_USER: | |
4064 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) | |
4065 | return -EINVAL; | |
4066 | break; | |
4067 | } | |
4068 | ||
4069 | return 0; | |
4070 | } | |
4071 | EXPORT_SYMBOL(cfg80211_check_station_change); | |
4072 | ||
4073 | /* | |
4074 | * Get vlan interface making sure it is running and on the right wiphy. | |
4075 | */ | |
4076 | static struct net_device *get_vlan(struct genl_info *info, | |
4077 | struct cfg80211_registered_device *rdev) | |
4078 | { | |
4079 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; | |
4080 | struct net_device *v; | |
4081 | int ret; | |
4082 | ||
4083 | if (!vlanattr) | |
4084 | return NULL; | |
4085 | ||
4086 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
4087 | if (!v) | |
4088 | return ERR_PTR(-ENODEV); | |
4089 | ||
4090 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
4091 | ret = -EINVAL; | |
4092 | goto error; | |
4093 | } | |
4094 | ||
4095 | if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4096 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4097 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
4098 | ret = -EINVAL; | |
4099 | goto error; | |
4100 | } | |
4101 | ||
4102 | if (!netif_running(v)) { | |
4103 | ret = -ENETDOWN; | |
4104 | goto error; | |
4105 | } | |
4106 | ||
4107 | return v; | |
4108 | error: | |
4109 | dev_put(v); | |
4110 | return ERR_PTR(ret); | |
4111 | } | |
4112 | ||
4113 | static const struct nla_policy | |
4114 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = { | |
4115 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, | |
4116 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
4117 | }; | |
4118 | ||
4119 | static int nl80211_parse_sta_wme(struct genl_info *info, | |
4120 | struct station_parameters *params) | |
4121 | { | |
4122 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; | |
4123 | struct nlattr *nla; | |
4124 | int err; | |
4125 | ||
4126 | /* parse WME attributes if present */ | |
4127 | if (!info->attrs[NL80211_ATTR_STA_WME]) | |
4128 | return 0; | |
4129 | ||
4130 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
4131 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
4132 | nl80211_sta_wme_policy); | |
4133 | if (err) | |
4134 | return err; | |
4135 | ||
4136 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
4137 | params->uapsd_queues = nla_get_u8( | |
4138 | tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
4139 | if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
4140 | return -EINVAL; | |
4141 | ||
4142 | if (tb[NL80211_STA_WME_MAX_SP]) | |
4143 | params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
4144 | ||
4145 | if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
4146 | return -EINVAL; | |
4147 | ||
4148 | params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; | |
4149 | ||
4150 | return 0; | |
4151 | } | |
4152 | ||
4153 | static int nl80211_parse_sta_channel_info(struct genl_info *info, | |
4154 | struct station_parameters *params) | |
4155 | { | |
4156 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) { | |
4157 | params->supported_channels = | |
4158 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
4159 | params->supported_channels_len = | |
4160 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
4161 | /* | |
4162 | * Need to include at least one (first channel, number of | |
4163 | * channels) tuple for each subband, and must have proper | |
4164 | * tuples for the rest of the data as well. | |
4165 | */ | |
4166 | if (params->supported_channels_len < 2) | |
4167 | return -EINVAL; | |
4168 | if (params->supported_channels_len % 2) | |
4169 | return -EINVAL; | |
4170 | } | |
4171 | ||
4172 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) { | |
4173 | params->supported_oper_classes = | |
4174 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
4175 | params->supported_oper_classes_len = | |
4176 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
4177 | /* | |
4178 | * The value of the Length field of the Supported Operating | |
4179 | * Classes element is between 2 and 253. | |
4180 | */ | |
4181 | if (params->supported_oper_classes_len < 2 || | |
4182 | params->supported_oper_classes_len > 253) | |
4183 | return -EINVAL; | |
4184 | } | |
4185 | return 0; | |
4186 | } | |
4187 | ||
4188 | static int nl80211_set_station_tdls(struct genl_info *info, | |
4189 | struct station_parameters *params) | |
4190 | { | |
4191 | int err; | |
4192 | /* Dummy STA entry gets updated once the peer capabilities are known */ | |
4193 | if (info->attrs[NL80211_ATTR_PEER_AID]) | |
4194 | params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); | |
4195 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) | |
4196 | params->ht_capa = | |
4197 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
4198 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) | |
4199 | params->vht_capa = | |
4200 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4201 | ||
4202 | err = nl80211_parse_sta_channel_info(info, params); | |
4203 | if (err) | |
4204 | return err; | |
4205 | ||
4206 | return nl80211_parse_sta_wme(info, params); | |
4207 | } | |
4208 | ||
4209 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
4210 | { | |
4211 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4212 | struct net_device *dev = info->user_ptr[1]; | |
4213 | struct station_parameters params; | |
4214 | u8 *mac_addr; | |
4215 | int err; | |
4216 | ||
4217 | memset(¶ms, 0, sizeof(params)); | |
4218 | ||
4219 | params.listen_interval = -1; | |
4220 | ||
4221 | if (!rdev->ops->change_station) | |
4222 | return -EOPNOTSUPP; | |
4223 | ||
4224 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
4225 | return -EINVAL; | |
4226 | ||
4227 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4228 | return -EINVAL; | |
4229 | ||
4230 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4231 | ||
4232 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
4233 | params.supported_rates = | |
4234 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4235 | params.supported_rates_len = | |
4236 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4237 | } | |
4238 | ||
4239 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { | |
4240 | params.capability = | |
4241 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4242 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4243 | } | |
4244 | ||
4245 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4246 | params.ext_capab = | |
4247 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4248 | params.ext_capab_len = | |
4249 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4250 | } | |
4251 | ||
4252 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
4253 | return -EINVAL; | |
4254 | ||
4255 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) | |
4256 | return -EINVAL; | |
4257 | ||
4258 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { | |
4259 | params.plink_action = | |
4260 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
4261 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4262 | return -EINVAL; | |
4263 | } | |
4264 | ||
4265 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) { | |
4266 | params.plink_state = | |
4267 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); | |
4268 | if (params.plink_state >= NUM_NL80211_PLINK_STATES) | |
4269 | return -EINVAL; | |
4270 | params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE; | |
4271 | } | |
4272 | ||
4273 | if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) { | |
4274 | enum nl80211_mesh_power_mode pm = nla_get_u32( | |
4275 | info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]); | |
4276 | ||
4277 | if (pm <= NL80211_MESH_POWER_UNKNOWN || | |
4278 | pm > NL80211_MESH_POWER_MAX) | |
4279 | return -EINVAL; | |
4280 | ||
4281 | params.local_pm = pm; | |
4282 | } | |
4283 | ||
4284 | /* Include parameters for TDLS peer (will check later) */ | |
4285 | err = nl80211_set_station_tdls(info, ¶ms); | |
4286 | if (err) | |
4287 | return err; | |
4288 | ||
4289 | params.vlan = get_vlan(info, rdev); | |
4290 | if (IS_ERR(params.vlan)) | |
4291 | return PTR_ERR(params.vlan); | |
4292 | ||
4293 | switch (dev->ieee80211_ptr->iftype) { | |
4294 | case NL80211_IFTYPE_AP: | |
4295 | case NL80211_IFTYPE_AP_VLAN: | |
4296 | case NL80211_IFTYPE_P2P_GO: | |
4297 | case NL80211_IFTYPE_P2P_CLIENT: | |
4298 | case NL80211_IFTYPE_STATION: | |
4299 | case NL80211_IFTYPE_ADHOC: | |
4300 | case NL80211_IFTYPE_MESH_POINT: | |
4301 | break; | |
4302 | default: | |
4303 | err = -EOPNOTSUPP; | |
4304 | goto out_put_vlan; | |
4305 | } | |
4306 | ||
4307 | /* driver will call cfg80211_check_station_change() */ | |
4308 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); | |
4309 | ||
4310 | out_put_vlan: | |
4311 | if (params.vlan) | |
4312 | dev_put(params.vlan); | |
4313 | ||
4314 | return err; | |
4315 | } | |
4316 | ||
4317 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
4318 | { | |
4319 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4320 | int err; | |
4321 | struct net_device *dev = info->user_ptr[1]; | |
4322 | struct station_parameters params; | |
4323 | u8 *mac_addr = NULL; | |
4324 | ||
4325 | memset(¶ms, 0, sizeof(params)); | |
4326 | ||
4327 | if (!rdev->ops->add_station) | |
4328 | return -EOPNOTSUPP; | |
4329 | ||
4330 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4331 | return -EINVAL; | |
4332 | ||
4333 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
4334 | return -EINVAL; | |
4335 | ||
4336 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
4337 | return -EINVAL; | |
4338 | ||
4339 | if (!info->attrs[NL80211_ATTR_STA_AID] && | |
4340 | !info->attrs[NL80211_ATTR_PEER_AID]) | |
4341 | return -EINVAL; | |
4342 | ||
4343 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4344 | params.supported_rates = | |
4345 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4346 | params.supported_rates_len = | |
4347 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4348 | params.listen_interval = | |
4349 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
4350 | ||
4351 | if (info->attrs[NL80211_ATTR_PEER_AID]) | |
4352 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); | |
4353 | else | |
4354 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
4355 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
4356 | return -EINVAL; | |
4357 | ||
4358 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { | |
4359 | params.capability = | |
4360 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4361 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4362 | } | |
4363 | ||
4364 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4365 | params.ext_capab = | |
4366 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4367 | params.ext_capab_len = | |
4368 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4369 | } | |
4370 | ||
4371 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) | |
4372 | params.ht_capa = | |
4373 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
4374 | ||
4375 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) | |
4376 | params.vht_capa = | |
4377 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4378 | ||
4379 | if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) { | |
4380 | params.opmode_notif_used = true; | |
4381 | params.opmode_notif = | |
4382 | nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); | |
4383 | } | |
4384 | ||
4385 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { | |
4386 | params.plink_action = | |
4387 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
4388 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4389 | return -EINVAL; | |
4390 | } | |
4391 | ||
4392 | err = nl80211_parse_sta_channel_info(info, ¶ms); | |
4393 | if (err) | |
4394 | return err; | |
4395 | ||
4396 | err = nl80211_parse_sta_wme(info, ¶ms); | |
4397 | if (err) | |
4398 | return err; | |
4399 | ||
4400 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) | |
4401 | return -EINVAL; | |
4402 | ||
4403 | /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT | |
4404 | * as userspace might just pass through the capabilities from the IEs | |
4405 | * directly, rather than enforcing this restriction and returning an | |
4406 | * error in this case. | |
4407 | */ | |
4408 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) { | |
4409 | params.ht_capa = NULL; | |
4410 | params.vht_capa = NULL; | |
4411 | } | |
4412 | ||
4413 | /* When you run into this, adjust the code below for the new flag */ | |
4414 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
4415 | ||
4416 | switch (dev->ieee80211_ptr->iftype) { | |
4417 | case NL80211_IFTYPE_AP: | |
4418 | case NL80211_IFTYPE_AP_VLAN: | |
4419 | case NL80211_IFTYPE_P2P_GO: | |
4420 | /* ignore WME attributes if iface/sta is not capable */ | |
4421 | if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) || | |
4422 | !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) | |
4423 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4424 | ||
4425 | /* TDLS peers cannot be added */ | |
4426 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || | |
4427 | info->attrs[NL80211_ATTR_PEER_AID]) | |
4428 | return -EINVAL; | |
4429 | /* but don't bother the driver with it */ | |
4430 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
4431 | ||
4432 | /* allow authenticated/associated only if driver handles it */ | |
4433 | if (!(rdev->wiphy.features & | |
4434 | NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
4435 | params.sta_flags_mask & | |
4436 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4437 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
4438 | return -EINVAL; | |
4439 | ||
4440 | /* must be last in here for error handling */ | |
4441 | params.vlan = get_vlan(info, rdev); | |
4442 | if (IS_ERR(params.vlan)) | |
4443 | return PTR_ERR(params.vlan); | |
4444 | break; | |
4445 | case NL80211_IFTYPE_MESH_POINT: | |
4446 | /* ignore uAPSD data */ | |
4447 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4448 | ||
4449 | /* associated is disallowed */ | |
4450 | if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) | |
4451 | return -EINVAL; | |
4452 | /* TDLS peers cannot be added */ | |
4453 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || | |
4454 | info->attrs[NL80211_ATTR_PEER_AID]) | |
4455 | return -EINVAL; | |
4456 | break; | |
4457 | case NL80211_IFTYPE_STATION: | |
4458 | case NL80211_IFTYPE_P2P_CLIENT: | |
4459 | /* ignore uAPSD data */ | |
4460 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4461 | ||
4462 | /* these are disallowed */ | |
4463 | if (params.sta_flags_mask & | |
4464 | (BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
4465 | BIT(NL80211_STA_FLAG_AUTHENTICATED))) | |
4466 | return -EINVAL; | |
4467 | /* Only TDLS peers can be added */ | |
4468 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
4469 | return -EINVAL; | |
4470 | /* Can only add if TDLS ... */ | |
4471 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
4472 | return -EOPNOTSUPP; | |
4473 | /* ... with external setup is supported */ | |
4474 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
4475 | return -EOPNOTSUPP; | |
4476 | /* | |
4477 | * Older wpa_supplicant versions always mark the TDLS peer | |
4478 | * as authorized, but it shouldn't yet be. | |
4479 | */ | |
4480 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED); | |
4481 | break; | |
4482 | default: | |
4483 | return -EOPNOTSUPP; | |
4484 | } | |
4485 | ||
4486 | /* be aware of params.vlan when changing code here */ | |
4487 | ||
4488 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); | |
4489 | ||
4490 | if (params.vlan) | |
4491 | dev_put(params.vlan); | |
4492 | return err; | |
4493 | } | |
4494 | ||
4495 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
4496 | { | |
4497 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4498 | struct net_device *dev = info->user_ptr[1]; | |
4499 | struct station_del_parameters params; | |
4500 | ||
4501 | memset(¶ms, 0, sizeof(params)); | |
4502 | ||
4503 | if (info->attrs[NL80211_ATTR_MAC]) | |
4504 | params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4505 | ||
4506 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4507 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4508 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && | |
4509 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4510 | return -EINVAL; | |
4511 | ||
4512 | if (!rdev->ops->del_station) | |
4513 | return -EOPNOTSUPP; | |
4514 | ||
4515 | if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) { | |
4516 | params.subtype = | |
4517 | nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]); | |
4518 | if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 && | |
4519 | params.subtype != IEEE80211_STYPE_DEAUTH >> 4) | |
4520 | return -EINVAL; | |
4521 | } else { | |
4522 | /* Default to Deauthentication frame */ | |
4523 | params.subtype = IEEE80211_STYPE_DEAUTH >> 4; | |
4524 | } | |
4525 | ||
4526 | if (info->attrs[NL80211_ATTR_REASON_CODE]) { | |
4527 | params.reason_code = | |
4528 | nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4529 | if (params.reason_code == 0) | |
4530 | return -EINVAL; /* 0 is reserved */ | |
4531 | } else { | |
4532 | /* Default to reason code 2 */ | |
4533 | params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID; | |
4534 | } | |
4535 | ||
4536 | return rdev_del_station(rdev, dev, ¶ms); | |
4537 | } | |
4538 | ||
4539 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, | |
4540 | int flags, struct net_device *dev, | |
4541 | u8 *dst, u8 *next_hop, | |
4542 | struct mpath_info *pinfo) | |
4543 | { | |
4544 | void *hdr; | |
4545 | struct nlattr *pinfoattr; | |
4546 | ||
4547 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH); | |
4548 | if (!hdr) | |
4549 | return -1; | |
4550 | ||
4551 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
4552 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
4553 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
4554 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
4555 | goto nla_put_failure; | |
4556 | ||
4557 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
4558 | if (!pinfoattr) | |
4559 | goto nla_put_failure; | |
4560 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && | |
4561 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
4562 | pinfo->frame_qlen)) | |
4563 | goto nla_put_failure; | |
4564 | if (((pinfo->filled & MPATH_INFO_SN) && | |
4565 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
4566 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
4567 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
4568 | pinfo->metric)) || | |
4569 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
4570 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
4571 | pinfo->exptime)) || | |
4572 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
4573 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
4574 | pinfo->flags)) || | |
4575 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
4576 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
4577 | pinfo->discovery_timeout)) || | |
4578 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
4579 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
4580 | pinfo->discovery_retries))) | |
4581 | goto nla_put_failure; | |
4582 | ||
4583 | nla_nest_end(msg, pinfoattr); | |
4584 | ||
4585 | genlmsg_end(msg, hdr); | |
4586 | return 0; | |
4587 | ||
4588 | nla_put_failure: | |
4589 | genlmsg_cancel(msg, hdr); | |
4590 | return -EMSGSIZE; | |
4591 | } | |
4592 | ||
4593 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
4594 | struct netlink_callback *cb) | |
4595 | { | |
4596 | struct mpath_info pinfo; | |
4597 | struct cfg80211_registered_device *rdev; | |
4598 | struct wireless_dev *wdev; | |
4599 | u8 dst[ETH_ALEN]; | |
4600 | u8 next_hop[ETH_ALEN]; | |
4601 | int path_idx = cb->args[2]; | |
4602 | int err; | |
4603 | ||
4604 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); | |
4605 | if (err) | |
4606 | return err; | |
4607 | ||
4608 | if (!rdev->ops->dump_mpath) { | |
4609 | err = -EOPNOTSUPP; | |
4610 | goto out_err; | |
4611 | } | |
4612 | ||
4613 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { | |
4614 | err = -EOPNOTSUPP; | |
4615 | goto out_err; | |
4616 | } | |
4617 | ||
4618 | while (1) { | |
4619 | err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst, | |
4620 | next_hop, &pinfo); | |
4621 | if (err == -ENOENT) | |
4622 | break; | |
4623 | if (err) | |
4624 | goto out_err; | |
4625 | ||
4626 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, | |
4627 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4628 | wdev->netdev, dst, next_hop, | |
4629 | &pinfo) < 0) | |
4630 | goto out; | |
4631 | ||
4632 | path_idx++; | |
4633 | } | |
4634 | ||
4635 | ||
4636 | out: | |
4637 | cb->args[2] = path_idx; | |
4638 | err = skb->len; | |
4639 | out_err: | |
4640 | nl80211_finish_wdev_dump(rdev); | |
4641 | return err; | |
4642 | } | |
4643 | ||
4644 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
4645 | { | |
4646 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4647 | int err; | |
4648 | struct net_device *dev = info->user_ptr[1]; | |
4649 | struct mpath_info pinfo; | |
4650 | struct sk_buff *msg; | |
4651 | u8 *dst = NULL; | |
4652 | u8 next_hop[ETH_ALEN]; | |
4653 | ||
4654 | memset(&pinfo, 0, sizeof(pinfo)); | |
4655 | ||
4656 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4657 | return -EINVAL; | |
4658 | ||
4659 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4660 | ||
4661 | if (!rdev->ops->get_mpath) | |
4662 | return -EOPNOTSUPP; | |
4663 | ||
4664 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
4665 | return -EOPNOTSUPP; | |
4666 | ||
4667 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); | |
4668 | if (err) | |
4669 | return err; | |
4670 | ||
4671 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4672 | if (!msg) | |
4673 | return -ENOMEM; | |
4674 | ||
4675 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, | |
4676 | dev, dst, next_hop, &pinfo) < 0) { | |
4677 | nlmsg_free(msg); | |
4678 | return -ENOBUFS; | |
4679 | } | |
4680 | ||
4681 | return genlmsg_reply(msg, info); | |
4682 | } | |
4683 | ||
4684 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
4685 | { | |
4686 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4687 | struct net_device *dev = info->user_ptr[1]; | |
4688 | u8 *dst = NULL; | |
4689 | u8 *next_hop = NULL; | |
4690 | ||
4691 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4692 | return -EINVAL; | |
4693 | ||
4694 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4695 | return -EINVAL; | |
4696 | ||
4697 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4698 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4699 | ||
4700 | if (!rdev->ops->change_mpath) | |
4701 | return -EOPNOTSUPP; | |
4702 | ||
4703 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
4704 | return -EOPNOTSUPP; | |
4705 | ||
4706 | return rdev_change_mpath(rdev, dev, dst, next_hop); | |
4707 | } | |
4708 | ||
4709 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
4710 | { | |
4711 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4712 | struct net_device *dev = info->user_ptr[1]; | |
4713 | u8 *dst = NULL; | |
4714 | u8 *next_hop = NULL; | |
4715 | ||
4716 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4717 | return -EINVAL; | |
4718 | ||
4719 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4720 | return -EINVAL; | |
4721 | ||
4722 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4723 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4724 | ||
4725 | if (!rdev->ops->add_mpath) | |
4726 | return -EOPNOTSUPP; | |
4727 | ||
4728 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
4729 | return -EOPNOTSUPP; | |
4730 | ||
4731 | return rdev_add_mpath(rdev, dev, dst, next_hop); | |
4732 | } | |
4733 | ||
4734 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
4735 | { | |
4736 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4737 | struct net_device *dev = info->user_ptr[1]; | |
4738 | u8 *dst = NULL; | |
4739 | ||
4740 | if (info->attrs[NL80211_ATTR_MAC]) | |
4741 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4742 | ||
4743 | if (!rdev->ops->del_mpath) | |
4744 | return -EOPNOTSUPP; | |
4745 | ||
4746 | return rdev_del_mpath(rdev, dev, dst); | |
4747 | } | |
4748 | ||
4749 | static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info) | |
4750 | { | |
4751 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4752 | int err; | |
4753 | struct net_device *dev = info->user_ptr[1]; | |
4754 | struct mpath_info pinfo; | |
4755 | struct sk_buff *msg; | |
4756 | u8 *dst = NULL; | |
4757 | u8 mpp[ETH_ALEN]; | |
4758 | ||
4759 | memset(&pinfo, 0, sizeof(pinfo)); | |
4760 | ||
4761 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4762 | return -EINVAL; | |
4763 | ||
4764 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4765 | ||
4766 | if (!rdev->ops->get_mpp) | |
4767 | return -EOPNOTSUPP; | |
4768 | ||
4769 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
4770 | return -EOPNOTSUPP; | |
4771 | ||
4772 | err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo); | |
4773 | if (err) | |
4774 | return err; | |
4775 | ||
4776 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4777 | if (!msg) | |
4778 | return -ENOMEM; | |
4779 | ||
4780 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, | |
4781 | dev, dst, mpp, &pinfo) < 0) { | |
4782 | nlmsg_free(msg); | |
4783 | return -ENOBUFS; | |
4784 | } | |
4785 | ||
4786 | return genlmsg_reply(msg, info); | |
4787 | } | |
4788 | ||
4789 | static int nl80211_dump_mpp(struct sk_buff *skb, | |
4790 | struct netlink_callback *cb) | |
4791 | { | |
4792 | struct mpath_info pinfo; | |
4793 | struct cfg80211_registered_device *rdev; | |
4794 | struct wireless_dev *wdev; | |
4795 | u8 dst[ETH_ALEN]; | |
4796 | u8 mpp[ETH_ALEN]; | |
4797 | int path_idx = cb->args[2]; | |
4798 | int err; | |
4799 | ||
4800 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); | |
4801 | if (err) | |
4802 | return err; | |
4803 | ||
4804 | if (!rdev->ops->dump_mpp) { | |
4805 | err = -EOPNOTSUPP; | |
4806 | goto out_err; | |
4807 | } | |
4808 | ||
4809 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { | |
4810 | err = -EOPNOTSUPP; | |
4811 | goto out_err; | |
4812 | } | |
4813 | ||
4814 | while (1) { | |
4815 | err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst, | |
4816 | mpp, &pinfo); | |
4817 | if (err == -ENOENT) | |
4818 | break; | |
4819 | if (err) | |
4820 | goto out_err; | |
4821 | ||
4822 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, | |
4823 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4824 | wdev->netdev, dst, mpp, | |
4825 | &pinfo) < 0) | |
4826 | goto out; | |
4827 | ||
4828 | path_idx++; | |
4829 | } | |
4830 | ||
4831 | out: | |
4832 | cb->args[2] = path_idx; | |
4833 | err = skb->len; | |
4834 | out_err: | |
4835 | nl80211_finish_wdev_dump(rdev); | |
4836 | return err; | |
4837 | } | |
4838 | ||
4839 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) | |
4840 | { | |
4841 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4842 | struct net_device *dev = info->user_ptr[1]; | |
4843 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
4844 | struct bss_parameters params; | |
4845 | int err; | |
4846 | ||
4847 | memset(¶ms, 0, sizeof(params)); | |
4848 | /* default to not changing parameters */ | |
4849 | params.use_cts_prot = -1; | |
4850 | params.use_short_preamble = -1; | |
4851 | params.use_short_slot_time = -1; | |
4852 | params.ap_isolate = -1; | |
4853 | params.ht_opmode = -1; | |
4854 | params.p2p_ctwindow = -1; | |
4855 | params.p2p_opp_ps = -1; | |
4856 | ||
4857 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
4858 | params.use_cts_prot = | |
4859 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
4860 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
4861 | params.use_short_preamble = | |
4862 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
4863 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
4864 | params.use_short_slot_time = | |
4865 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
4866 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { | |
4867 | params.basic_rates = | |
4868 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4869 | params.basic_rates_len = | |
4870 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4871 | } | |
4872 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) | |
4873 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
4874 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) | |
4875 | params.ht_opmode = | |
4876 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
4877 | ||
4878 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { | |
4879 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4880 | return -EINVAL; | |
4881 | params.p2p_ctwindow = | |
4882 | nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
4883 | if (params.p2p_ctwindow < 0) | |
4884 | return -EINVAL; | |
4885 | if (params.p2p_ctwindow != 0 && | |
4886 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
4887 | return -EINVAL; | |
4888 | } | |
4889 | ||
4890 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
4891 | u8 tmp; | |
4892 | ||
4893 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4894 | return -EINVAL; | |
4895 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
4896 | if (tmp > 1) | |
4897 | return -EINVAL; | |
4898 | params.p2p_opp_ps = tmp; | |
4899 | if (params.p2p_opp_ps && | |
4900 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
4901 | return -EINVAL; | |
4902 | } | |
4903 | ||
4904 | if (!rdev->ops->change_bss) | |
4905 | return -EOPNOTSUPP; | |
4906 | ||
4907 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4908 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4909 | return -EOPNOTSUPP; | |
4910 | ||
4911 | wdev_lock(wdev); | |
4912 | err = rdev_change_bss(rdev, dev, ¶ms); | |
4913 | wdev_unlock(wdev); | |
4914 | ||
4915 | return err; | |
4916 | } | |
4917 | ||
4918 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
4919 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
4920 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
4921 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
4922 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
4923 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
4924 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
4925 | [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 }, | |
4926 | }; | |
4927 | ||
4928 | static int parse_reg_rule(struct nlattr *tb[], | |
4929 | struct ieee80211_reg_rule *reg_rule) | |
4930 | { | |
4931 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
4932 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
4933 | ||
4934 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
4935 | return -EINVAL; | |
4936 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
4937 | return -EINVAL; | |
4938 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
4939 | return -EINVAL; | |
4940 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
4941 | return -EINVAL; | |
4942 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
4943 | return -EINVAL; | |
4944 | ||
4945 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
4946 | ||
4947 | freq_range->start_freq_khz = | |
4948 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
4949 | freq_range->end_freq_khz = | |
4950 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
4951 | freq_range->max_bandwidth_khz = | |
4952 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
4953 | ||
4954 | power_rule->max_eirp = | |
4955 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
4956 | ||
4957 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
4958 | power_rule->max_antenna_gain = | |
4959 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
4960 | ||
4961 | if (tb[NL80211_ATTR_DFS_CAC_TIME]) | |
4962 | reg_rule->dfs_cac_ms = | |
4963 | nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]); | |
4964 | ||
4965 | return 0; | |
4966 | } | |
4967 | ||
4968 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
4969 | { | |
4970 | char *data = NULL; | |
4971 | enum nl80211_user_reg_hint_type user_reg_hint_type; | |
4972 | ||
4973 | /* | |
4974 | * You should only get this when cfg80211 hasn't yet initialized | |
4975 | * completely when built-in to the kernel right between the time | |
4976 | * window between nl80211_init() and regulatory_init(), if that is | |
4977 | * even possible. | |
4978 | */ | |
4979 | if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) | |
4980 | return -EINPROGRESS; | |
4981 | ||
4982 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) | |
4983 | user_reg_hint_type = | |
4984 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
4985 | else | |
4986 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
4987 | ||
4988 | switch (user_reg_hint_type) { | |
4989 | case NL80211_USER_REG_HINT_USER: | |
4990 | case NL80211_USER_REG_HINT_CELL_BASE: | |
4991 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
4992 | return -EINVAL; | |
4993 | ||
4994 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
4995 | return regulatory_hint_user(data, user_reg_hint_type); | |
4996 | case NL80211_USER_REG_HINT_INDOOR: | |
4997 | return regulatory_hint_indoor_user(); | |
4998 | default: | |
4999 | return -EINVAL; | |
5000 | } | |
5001 | } | |
5002 | ||
5003 | static int nl80211_get_mesh_config(struct sk_buff *skb, | |
5004 | struct genl_info *info) | |
5005 | { | |
5006 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5007 | struct net_device *dev = info->user_ptr[1]; | |
5008 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
5009 | struct mesh_config cur_params; | |
5010 | int err = 0; | |
5011 | void *hdr; | |
5012 | struct nlattr *pinfoattr; | |
5013 | struct sk_buff *msg; | |
5014 | ||
5015 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) | |
5016 | return -EOPNOTSUPP; | |
5017 | ||
5018 | if (!rdev->ops->get_mesh_config) | |
5019 | return -EOPNOTSUPP; | |
5020 | ||
5021 | wdev_lock(wdev); | |
5022 | /* If not connected, get default parameters */ | |
5023 | if (!wdev->mesh_id_len) | |
5024 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
5025 | else | |
5026 | err = rdev_get_mesh_config(rdev, dev, &cur_params); | |
5027 | wdev_unlock(wdev); | |
5028 | ||
5029 | if (err) | |
5030 | return err; | |
5031 | ||
5032 | /* Draw up a netlink message to send back */ | |
5033 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5034 | if (!msg) | |
5035 | return -ENOMEM; | |
5036 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
5037 | NL80211_CMD_GET_MESH_CONFIG); | |
5038 | if (!hdr) | |
5039 | goto out; | |
5040 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); | |
5041 | if (!pinfoattr) | |
5042 | goto nla_put_failure; | |
5043 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
5044 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
5045 | cur_params.dot11MeshRetryTimeout) || | |
5046 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
5047 | cur_params.dot11MeshConfirmTimeout) || | |
5048 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
5049 | cur_params.dot11MeshHoldingTimeout) || | |
5050 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
5051 | cur_params.dot11MeshMaxPeerLinks) || | |
5052 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
5053 | cur_params.dot11MeshMaxRetries) || | |
5054 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
5055 | cur_params.dot11MeshTTL) || | |
5056 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
5057 | cur_params.element_ttl) || | |
5058 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
5059 | cur_params.auto_open_plinks) || | |
5060 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, | |
5061 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
5062 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
5063 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
5064 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
5065 | cur_params.path_refresh_time) || | |
5066 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
5067 | cur_params.min_discovery_timeout) || | |
5068 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
5069 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
5070 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
5071 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
5072 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
5073 | cur_params.dot11MeshHWMPperrMinInterval) || | |
5074 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
5075 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
5076 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
5077 | cur_params.dot11MeshHWMPRootMode) || | |
5078 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
5079 | cur_params.dot11MeshHWMPRannInterval) || | |
5080 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
5081 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
5082 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
5083 | cur_params.dot11MeshForwarding) || | |
5084 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
5085 | cur_params.rssi_threshold) || | |
5086 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
5087 | cur_params.ht_opmode) || | |
5088 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
5089 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
5090 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
5091 | cur_params.dot11MeshHWMProotInterval) || | |
5092 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
5093 | cur_params.dot11MeshHWMPconfirmationInterval) || | |
5094 | nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE, | |
5095 | cur_params.power_mode) || | |
5096 | nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW, | |
5097 | cur_params.dot11MeshAwakeWindowDuration) || | |
5098 | nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, | |
5099 | cur_params.plink_timeout)) | |
5100 | goto nla_put_failure; | |
5101 | nla_nest_end(msg, pinfoattr); | |
5102 | genlmsg_end(msg, hdr); | |
5103 | return genlmsg_reply(msg, info); | |
5104 | ||
5105 | nla_put_failure: | |
5106 | genlmsg_cancel(msg, hdr); | |
5107 | out: | |
5108 | nlmsg_free(msg); | |
5109 | return -ENOBUFS; | |
5110 | } | |
5111 | ||
5112 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { | |
5113 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
5114 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
5115 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
5116 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
5117 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
5118 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
5119 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, | |
5120 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
5121 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, | |
5122 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
5123 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
5124 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
5125 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
5126 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
5127 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, | |
5128 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
5129 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, | |
5130 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, | |
5131 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, | |
5132 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, | |
5133 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, | |
5134 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
5135 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, | |
5136 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
5137 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, | |
5138 | [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 }, | |
5139 | [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 }, | |
5140 | [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 }, | |
5141 | }; | |
5142 | ||
5143 | static const struct nla_policy | |
5144 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
5145 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, | |
5146 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, | |
5147 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
5148 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, | |
5149 | [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 }, | |
5150 | [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG }, | |
5151 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, | |
5152 | .len = IEEE80211_MAX_DATA_LEN }, | |
5153 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, | |
5154 | }; | |
5155 | ||
5156 | static int nl80211_parse_mesh_config(struct genl_info *info, | |
5157 | struct mesh_config *cfg, | |
5158 | u32 *mask_out) | |
5159 | { | |
5160 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
5161 | u32 mask = 0; | |
5162 | ||
5163 | #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \ | |
5164 | do { \ | |
5165 | if (tb[attr]) { \ | |
5166 | if (fn(tb[attr]) < min || fn(tb[attr]) > max) \ | |
5167 | return -EINVAL; \ | |
5168 | cfg->param = fn(tb[attr]); \ | |
5169 | mask |= (1 << (attr - 1)); \ | |
5170 | } \ | |
5171 | } while (0) | |
5172 | ||
5173 | ||
5174 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) | |
5175 | return -EINVAL; | |
5176 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
5177 | info->attrs[NL80211_ATTR_MESH_CONFIG], | |
5178 | nl80211_meshconf_params_policy)) | |
5179 | return -EINVAL; | |
5180 | ||
5181 | /* This makes sure that there aren't more than 32 mesh config | |
5182 | * parameters (otherwise our bitfield scheme would not work.) */ | |
5183 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
5184 | ||
5185 | /* Fill in the params struct */ | |
5186 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255, | |
5187 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, | |
5188 | nla_get_u16); | |
5189 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255, | |
5190 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
5191 | nla_get_u16); | |
5192 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255, | |
5193 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
5194 | nla_get_u16); | |
5195 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255, | |
5196 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, | |
5197 | nla_get_u16); | |
5198 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16, | |
5199 | mask, NL80211_MESHCONF_MAX_RETRIES, | |
5200 | nla_get_u8); | |
5201 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255, | |
5202 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
5203 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255, | |
5204 | mask, NL80211_MESHCONF_ELEMENT_TTL, | |
5205 | nla_get_u8); | |
5206 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1, | |
5207 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
5208 | nla_get_u8); | |
5209 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, | |
5210 | 1, 255, mask, | |
5211 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, | |
5212 | nla_get_u32); | |
5213 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255, | |
5214 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
5215 | nla_get_u8); | |
5216 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535, | |
5217 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
5218 | nla_get_u32); | |
5219 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535, | |
5220 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
5221 | nla_get_u16); | |
5222 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
5223 | 1, 65535, mask, | |
5224 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
5225 | nla_get_u32); | |
5226 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
5227 | 1, 65535, mask, | |
5228 | NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
5229 | nla_get_u16); | |
5230 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, | |
5231 | 1, 65535, mask, | |
5232 | NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
5233 | nla_get_u16); | |
5234 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
5235 | dot11MeshHWMPnetDiameterTraversalTime, | |
5236 | 1, 65535, mask, | |
5237 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
5238 | nla_get_u16); | |
5239 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4, | |
5240 | mask, NL80211_MESHCONF_HWMP_ROOTMODE, | |
5241 | nla_get_u8); | |
5242 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535, | |
5243 | mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
5244 | nla_get_u16); | |
5245 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
5246 | dot11MeshGateAnnouncementProtocol, 0, 1, | |
5247 | mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
5248 | nla_get_u8); | |
5249 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1, | |
5250 | mask, NL80211_MESHCONF_FORWARDING, | |
5251 | nla_get_u8); | |
5252 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0, | |
5253 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, | |
5254 | nla_get_s32); | |
5255 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16, | |
5256 | mask, NL80211_MESHCONF_HT_OPMODE, | |
5257 | nla_get_u16); | |
5258 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
5259 | 1, 65535, mask, | |
5260 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
5261 | nla_get_u32); | |
5262 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535, | |
5263 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
5264 | nla_get_u16); | |
5265 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
5266 | dot11MeshHWMPconfirmationInterval, | |
5267 | 1, 65535, mask, | |
5268 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
5269 | nla_get_u16); | |
5270 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, | |
5271 | NL80211_MESH_POWER_ACTIVE, | |
5272 | NL80211_MESH_POWER_MAX, | |
5273 | mask, NL80211_MESHCONF_POWER_MODE, | |
5274 | nla_get_u32); | |
5275 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, | |
5276 | 0, 65535, mask, | |
5277 | NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16); | |
5278 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff, | |
5279 | mask, NL80211_MESHCONF_PLINK_TIMEOUT, | |
5280 | nla_get_u32); | |
5281 | if (mask_out) | |
5282 | *mask_out = mask; | |
5283 | ||
5284 | return 0; | |
5285 | ||
5286 | #undef FILL_IN_MESH_PARAM_IF_SET | |
5287 | } | |
5288 | ||
5289 | static int nl80211_parse_mesh_setup(struct genl_info *info, | |
5290 | struct mesh_setup *setup) | |
5291 | { | |
5292 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5293 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; | |
5294 | ||
5295 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
5296 | return -EINVAL; | |
5297 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
5298 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
5299 | nl80211_mesh_setup_params_policy)) | |
5300 | return -EINVAL; | |
5301 | ||
5302 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) | |
5303 | setup->sync_method = | |
5304 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
5305 | IEEE80211_SYNC_METHOD_VENDOR : | |
5306 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
5307 | ||
5308 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) | |
5309 | setup->path_sel_proto = | |
5310 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
5311 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
5312 | IEEE80211_PATH_PROTOCOL_HWMP; | |
5313 | ||
5314 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
5315 | setup->path_metric = | |
5316 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
5317 | IEEE80211_PATH_METRIC_VENDOR : | |
5318 | IEEE80211_PATH_METRIC_AIRTIME; | |
5319 | ||
5320 | ||
5321 | if (tb[NL80211_MESH_SETUP_IE]) { | |
5322 | struct nlattr *ieattr = | |
5323 | tb[NL80211_MESH_SETUP_IE]; | |
5324 | if (!is_valid_ie_attr(ieattr)) | |
5325 | return -EINVAL; | |
5326 | setup->ie = nla_data(ieattr); | |
5327 | setup->ie_len = nla_len(ieattr); | |
5328 | } | |
5329 | if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] && | |
5330 | !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM)) | |
5331 | return -EINVAL; | |
5332 | setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]); | |
5333 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); | |
5334 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
5335 | if (setup->is_secure) | |
5336 | setup->user_mpm = true; | |
5337 | ||
5338 | if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) { | |
5339 | if (!setup->user_mpm) | |
5340 | return -EINVAL; | |
5341 | setup->auth_id = | |
5342 | nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]); | |
5343 | } | |
5344 | ||
5345 | return 0; | |
5346 | } | |
5347 | ||
5348 | static int nl80211_update_mesh_config(struct sk_buff *skb, | |
5349 | struct genl_info *info) | |
5350 | { | |
5351 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5352 | struct net_device *dev = info->user_ptr[1]; | |
5353 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
5354 | struct mesh_config cfg; | |
5355 | u32 mask; | |
5356 | int err; | |
5357 | ||
5358 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) | |
5359 | return -EOPNOTSUPP; | |
5360 | ||
5361 | if (!rdev->ops->update_mesh_config) | |
5362 | return -EOPNOTSUPP; | |
5363 | ||
5364 | err = nl80211_parse_mesh_config(info, &cfg, &mask); | |
5365 | if (err) | |
5366 | return err; | |
5367 | ||
5368 | wdev_lock(wdev); | |
5369 | if (!wdev->mesh_id_len) | |
5370 | err = -ENOLINK; | |
5371 | ||
5372 | if (!err) | |
5373 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); | |
5374 | ||
5375 | wdev_unlock(wdev); | |
5376 | ||
5377 | return err; | |
5378 | } | |
5379 | ||
5380 | static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom, | |
5381 | struct sk_buff *msg) | |
5382 | { | |
5383 | struct nlattr *nl_reg_rules; | |
5384 | unsigned int i; | |
5385 | ||
5386 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) || | |
5387 | (regdom->dfs_region && | |
5388 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region))) | |
5389 | goto nla_put_failure; | |
5390 | ||
5391 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
5392 | if (!nl_reg_rules) | |
5393 | goto nla_put_failure; | |
5394 | ||
5395 | for (i = 0; i < regdom->n_reg_rules; i++) { | |
5396 | struct nlattr *nl_reg_rule; | |
5397 | const struct ieee80211_reg_rule *reg_rule; | |
5398 | const struct ieee80211_freq_range *freq_range; | |
5399 | const struct ieee80211_power_rule *power_rule; | |
5400 | unsigned int max_bandwidth_khz; | |
5401 | ||
5402 | reg_rule = ®dom->reg_rules[i]; | |
5403 | freq_range = ®_rule->freq_range; | |
5404 | power_rule = ®_rule->power_rule; | |
5405 | ||
5406 | nl_reg_rule = nla_nest_start(msg, i); | |
5407 | if (!nl_reg_rule) | |
5408 | goto nla_put_failure; | |
5409 | ||
5410 | max_bandwidth_khz = freq_range->max_bandwidth_khz; | |
5411 | if (!max_bandwidth_khz) | |
5412 | max_bandwidth_khz = reg_get_max_bandwidth(regdom, | |
5413 | reg_rule); | |
5414 | ||
5415 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
5416 | reg_rule->flags) || | |
5417 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
5418 | freq_range->start_freq_khz) || | |
5419 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
5420 | freq_range->end_freq_khz) || | |
5421 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
5422 | max_bandwidth_khz) || | |
5423 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
5424 | power_rule->max_antenna_gain) || | |
5425 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
5426 | power_rule->max_eirp) || | |
5427 | nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME, | |
5428 | reg_rule->dfs_cac_ms)) | |
5429 | goto nla_put_failure; | |
5430 | ||
5431 | nla_nest_end(msg, nl_reg_rule); | |
5432 | } | |
5433 | ||
5434 | nla_nest_end(msg, nl_reg_rules); | |
5435 | return 0; | |
5436 | ||
5437 | nla_put_failure: | |
5438 | return -EMSGSIZE; | |
5439 | } | |
5440 | ||
5441 | static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info) | |
5442 | { | |
5443 | const struct ieee80211_regdomain *regdom = NULL; | |
5444 | struct cfg80211_registered_device *rdev; | |
5445 | struct wiphy *wiphy = NULL; | |
5446 | struct sk_buff *msg; | |
5447 | void *hdr; | |
5448 | ||
5449 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5450 | if (!msg) | |
5451 | return -ENOBUFS; | |
5452 | ||
5453 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
5454 | NL80211_CMD_GET_REG); | |
5455 | if (!hdr) | |
5456 | goto put_failure; | |
5457 | ||
5458 | if (info->attrs[NL80211_ATTR_WIPHY]) { | |
5459 | bool self_managed; | |
5460 | ||
5461 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); | |
5462 | if (IS_ERR(rdev)) { | |
5463 | nlmsg_free(msg); | |
5464 | return PTR_ERR(rdev); | |
5465 | } | |
5466 | ||
5467 | wiphy = &rdev->wiphy; | |
5468 | self_managed = wiphy->regulatory_flags & | |
5469 | REGULATORY_WIPHY_SELF_MANAGED; | |
5470 | regdom = get_wiphy_regdom(wiphy); | |
5471 | ||
5472 | /* a self-managed-reg device must have a private regdom */ | |
5473 | if (WARN_ON(!regdom && self_managed)) { | |
5474 | nlmsg_free(msg); | |
5475 | return -EINVAL; | |
5476 | } | |
5477 | ||
5478 | if (regdom && | |
5479 | nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
5480 | goto nla_put_failure; | |
5481 | } | |
5482 | ||
5483 | if (!wiphy && reg_last_request_cell_base() && | |
5484 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
5485 | NL80211_USER_REG_HINT_CELL_BASE)) | |
5486 | goto nla_put_failure; | |
5487 | ||
5488 | rcu_read_lock(); | |
5489 | ||
5490 | if (!regdom) | |
5491 | regdom = rcu_dereference(cfg80211_regdomain); | |
5492 | ||
5493 | if (nl80211_put_regdom(regdom, msg)) | |
5494 | goto nla_put_failure_rcu; | |
5495 | ||
5496 | rcu_read_unlock(); | |
5497 | ||
5498 | genlmsg_end(msg, hdr); | |
5499 | return genlmsg_reply(msg, info); | |
5500 | ||
5501 | nla_put_failure_rcu: | |
5502 | rcu_read_unlock(); | |
5503 | nla_put_failure: | |
5504 | genlmsg_cancel(msg, hdr); | |
5505 | put_failure: | |
5506 | nlmsg_free(msg); | |
5507 | return -EMSGSIZE; | |
5508 | } | |
5509 | ||
5510 | static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb, | |
5511 | u32 seq, int flags, struct wiphy *wiphy, | |
5512 | const struct ieee80211_regdomain *regdom) | |
5513 | { | |
5514 | void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, | |
5515 | NL80211_CMD_GET_REG); | |
5516 | ||
5517 | if (!hdr) | |
5518 | return -1; | |
5519 | ||
5520 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); | |
5521 | ||
5522 | if (nl80211_put_regdom(regdom, msg)) | |
5523 | goto nla_put_failure; | |
5524 | ||
5525 | if (!wiphy && reg_last_request_cell_base() && | |
5526 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
5527 | NL80211_USER_REG_HINT_CELL_BASE)) | |
5528 | goto nla_put_failure; | |
5529 | ||
5530 | if (wiphy && | |
5531 | nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
5532 | goto nla_put_failure; | |
5533 | ||
5534 | if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && | |
5535 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
5536 | goto nla_put_failure; | |
5537 | ||
5538 | genlmsg_end(msg, hdr); | |
5539 | return 0; | |
5540 | ||
5541 | nla_put_failure: | |
5542 | genlmsg_cancel(msg, hdr); | |
5543 | return -EMSGSIZE; | |
5544 | } | |
5545 | ||
5546 | static int nl80211_get_reg_dump(struct sk_buff *skb, | |
5547 | struct netlink_callback *cb) | |
5548 | { | |
5549 | const struct ieee80211_regdomain *regdom = NULL; | |
5550 | struct cfg80211_registered_device *rdev; | |
5551 | int err, reg_idx, start = cb->args[2]; | |
5552 | ||
5553 | rtnl_lock(); | |
5554 | ||
5555 | if (cfg80211_regdomain && start == 0) { | |
5556 | err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, | |
5557 | NLM_F_MULTI, NULL, | |
5558 | rtnl_dereference(cfg80211_regdomain)); | |
5559 | if (err < 0) | |
5560 | goto out_err; | |
5561 | } | |
5562 | ||
5563 | /* the global regdom is idx 0 */ | |
5564 | reg_idx = 1; | |
5565 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
5566 | regdom = get_wiphy_regdom(&rdev->wiphy); | |
5567 | if (!regdom) | |
5568 | continue; | |
5569 | ||
5570 | if (++reg_idx <= start) | |
5571 | continue; | |
5572 | ||
5573 | err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, | |
5574 | NLM_F_MULTI, &rdev->wiphy, regdom); | |
5575 | if (err < 0) { | |
5576 | reg_idx--; | |
5577 | break; | |
5578 | } | |
5579 | } | |
5580 | ||
5581 | cb->args[2] = reg_idx; | |
5582 | err = skb->len; | |
5583 | out_err: | |
5584 | rtnl_unlock(); | |
5585 | return err; | |
5586 | } | |
5587 | ||
5588 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) | |
5589 | { | |
5590 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
5591 | struct nlattr *nl_reg_rule; | |
5592 | char *alpha2; | |
5593 | int rem_reg_rules, r; | |
5594 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
5595 | enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET; | |
5596 | struct ieee80211_regdomain *rd; | |
5597 | ||
5598 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
5599 | return -EINVAL; | |
5600 | ||
5601 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
5602 | return -EINVAL; | |
5603 | ||
5604 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
5605 | ||
5606 | if (info->attrs[NL80211_ATTR_DFS_REGION]) | |
5607 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
5608 | ||
5609 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
5610 | rem_reg_rules) { | |
5611 | num_rules++; | |
5612 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
5613 | return -EINVAL; | |
5614 | } | |
5615 | ||
5616 | if (!reg_is_valid_request(alpha2)) | |
5617 | return -EINVAL; | |
5618 | ||
5619 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
5620 | num_rules * sizeof(struct ieee80211_reg_rule); | |
5621 | ||
5622 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
5623 | if (!rd) | |
5624 | return -ENOMEM; | |
5625 | ||
5626 | rd->n_reg_rules = num_rules; | |
5627 | rd->alpha2[0] = alpha2[0]; | |
5628 | rd->alpha2[1] = alpha2[1]; | |
5629 | ||
5630 | /* | |
5631 | * Disable DFS master mode if the DFS region was | |
5632 | * not supported or known on this kernel. | |
5633 | */ | |
5634 | if (reg_supported_dfs_region(dfs_region)) | |
5635 | rd->dfs_region = dfs_region; | |
5636 | ||
5637 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
5638 | rem_reg_rules) { | |
5639 | r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
5640 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
5641 | reg_rule_policy); | |
5642 | if (r) | |
5643 | goto bad_reg; | |
5644 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
5645 | if (r) | |
5646 | goto bad_reg; | |
5647 | ||
5648 | rule_idx++; | |
5649 | ||
5650 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { | |
5651 | r = -EINVAL; | |
5652 | goto bad_reg; | |
5653 | } | |
5654 | } | |
5655 | ||
5656 | r = set_regdom(rd); | |
5657 | /* set_regdom took ownership */ | |
5658 | rd = NULL; | |
5659 | ||
5660 | bad_reg: | |
5661 | kfree(rd); | |
5662 | return r; | |
5663 | } | |
5664 | ||
5665 | static int validate_scan_freqs(struct nlattr *freqs) | |
5666 | { | |
5667 | struct nlattr *attr1, *attr2; | |
5668 | int n_channels = 0, tmp1, tmp2; | |
5669 | ||
5670 | nla_for_each_nested(attr1, freqs, tmp1) { | |
5671 | n_channels++; | |
5672 | /* | |
5673 | * Some hardware has a limited channel list for | |
5674 | * scanning, and it is pretty much nonsensical | |
5675 | * to scan for a channel twice, so disallow that | |
5676 | * and don't require drivers to check that the | |
5677 | * channel list they get isn't longer than what | |
5678 | * they can scan, as long as they can scan all | |
5679 | * the channels they registered at once. | |
5680 | */ | |
5681 | nla_for_each_nested(attr2, freqs, tmp2) | |
5682 | if (attr1 != attr2 && | |
5683 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
5684 | return 0; | |
5685 | } | |
5686 | ||
5687 | return n_channels; | |
5688 | } | |
5689 | ||
5690 | static int nl80211_parse_random_mac(struct nlattr **attrs, | |
5691 | u8 *mac_addr, u8 *mac_addr_mask) | |
5692 | { | |
5693 | int i; | |
5694 | ||
5695 | if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) { | |
5696 | eth_zero_addr(mac_addr); | |
5697 | eth_zero_addr(mac_addr_mask); | |
5698 | mac_addr[0] = 0x2; | |
5699 | mac_addr_mask[0] = 0x3; | |
5700 | ||
5701 | return 0; | |
5702 | } | |
5703 | ||
5704 | /* need both or none */ | |
5705 | if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK]) | |
5706 | return -EINVAL; | |
5707 | ||
5708 | memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN); | |
5709 | memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN); | |
5710 | ||
5711 | /* don't allow or configure an mcast address */ | |
5712 | if (!is_multicast_ether_addr(mac_addr_mask) || | |
5713 | is_multicast_ether_addr(mac_addr)) | |
5714 | return -EINVAL; | |
5715 | ||
5716 | /* | |
5717 | * allow users to pass a MAC address that has bits set outside | |
5718 | * of the mask, but don't bother drivers with having to deal | |
5719 | * with such bits | |
5720 | */ | |
5721 | for (i = 0; i < ETH_ALEN; i++) | |
5722 | mac_addr[i] &= mac_addr_mask[i]; | |
5723 | ||
5724 | return 0; | |
5725 | } | |
5726 | ||
5727 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) | |
5728 | { | |
5729 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5730 | struct wireless_dev *wdev = info->user_ptr[1]; | |
5731 | struct cfg80211_scan_request *request; | |
5732 | struct nlattr *attr; | |
5733 | struct wiphy *wiphy; | |
5734 | int err, tmp, n_ssids = 0, n_channels, i; | |
5735 | size_t ie_len; | |
5736 | ||
5737 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5738 | return -EINVAL; | |
5739 | ||
5740 | wiphy = &rdev->wiphy; | |
5741 | ||
5742 | if (!rdev->ops->scan) | |
5743 | return -EOPNOTSUPP; | |
5744 | ||
5745 | if (rdev->scan_req || rdev->scan_msg) { | |
5746 | err = -EBUSY; | |
5747 | goto unlock; | |
5748 | } | |
5749 | ||
5750 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
5751 | n_channels = validate_scan_freqs( | |
5752 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
5753 | if (!n_channels) { | |
5754 | err = -EINVAL; | |
5755 | goto unlock; | |
5756 | } | |
5757 | } else { | |
5758 | n_channels = ieee80211_get_num_supported_channels(wiphy); | |
5759 | } | |
5760 | ||
5761 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
5762 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
5763 | n_ssids++; | |
5764 | ||
5765 | if (n_ssids > wiphy->max_scan_ssids) { | |
5766 | err = -EINVAL; | |
5767 | goto unlock; | |
5768 | } | |
5769 | ||
5770 | if (info->attrs[NL80211_ATTR_IE]) | |
5771 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5772 | else | |
5773 | ie_len = 0; | |
5774 | ||
5775 | if (ie_len > wiphy->max_scan_ie_len) { | |
5776 | err = -EINVAL; | |
5777 | goto unlock; | |
5778 | } | |
5779 | ||
5780 | request = kzalloc(sizeof(*request) | |
5781 | + sizeof(*request->ssids) * n_ssids | |
5782 | + sizeof(*request->channels) * n_channels | |
5783 | + ie_len, GFP_KERNEL); | |
5784 | if (!request) { | |
5785 | err = -ENOMEM; | |
5786 | goto unlock; | |
5787 | } | |
5788 | ||
5789 | if (n_ssids) | |
5790 | request->ssids = (void *)&request->channels[n_channels]; | |
5791 | request->n_ssids = n_ssids; | |
5792 | if (ie_len) { | |
5793 | if (n_ssids) | |
5794 | request->ie = (void *)(request->ssids + n_ssids); | |
5795 | else | |
5796 | request->ie = (void *)(request->channels + n_channels); | |
5797 | } | |
5798 | ||
5799 | i = 0; | |
5800 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
5801 | /* user specified, bail out if channel not found */ | |
5802 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { | |
5803 | struct ieee80211_channel *chan; | |
5804 | ||
5805 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
5806 | ||
5807 | if (!chan) { | |
5808 | err = -EINVAL; | |
5809 | goto out_free; | |
5810 | } | |
5811 | ||
5812 | /* ignore disabled channels */ | |
5813 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5814 | continue; | |
5815 | ||
5816 | request->channels[i] = chan; | |
5817 | i++; | |
5818 | } | |
5819 | } else { | |
5820 | enum ieee80211_band band; | |
5821 | ||
5822 | /* all channels */ | |
5823 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
5824 | int j; | |
5825 | if (!wiphy->bands[band]) | |
5826 | continue; | |
5827 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
5828 | struct ieee80211_channel *chan; | |
5829 | ||
5830 | chan = &wiphy->bands[band]->channels[j]; | |
5831 | ||
5832 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5833 | continue; | |
5834 | ||
5835 | request->channels[i] = chan; | |
5836 | i++; | |
5837 | } | |
5838 | } | |
5839 | } | |
5840 | ||
5841 | if (!i) { | |
5842 | err = -EINVAL; | |
5843 | goto out_free; | |
5844 | } | |
5845 | ||
5846 | request->n_channels = i; | |
5847 | ||
5848 | i = 0; | |
5849 | if (n_ssids) { | |
5850 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
5851 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { | |
5852 | err = -EINVAL; | |
5853 | goto out_free; | |
5854 | } | |
5855 | request->ssids[i].ssid_len = nla_len(attr); | |
5856 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
5857 | i++; | |
5858 | } | |
5859 | } | |
5860 | ||
5861 | if (info->attrs[NL80211_ATTR_IE]) { | |
5862 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5863 | memcpy((void *)request->ie, | |
5864 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5865 | request->ie_len); | |
5866 | } | |
5867 | ||
5868 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) | |
5869 | if (wiphy->bands[i]) | |
5870 | request->rates[i] = | |
5871 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
5872 | ||
5873 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
5874 | nla_for_each_nested(attr, | |
5875 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
5876 | tmp) { | |
5877 | enum ieee80211_band band = nla_type(attr); | |
5878 | ||
5879 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { | |
5880 | err = -EINVAL; | |
5881 | goto out_free; | |
5882 | } | |
5883 | ||
5884 | if (!wiphy->bands[band]) | |
5885 | continue; | |
5886 | ||
5887 | err = ieee80211_get_ratemask(wiphy->bands[band], | |
5888 | nla_data(attr), | |
5889 | nla_len(attr), | |
5890 | &request->rates[band]); | |
5891 | if (err) | |
5892 | goto out_free; | |
5893 | } | |
5894 | } | |
5895 | ||
5896 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { | |
5897 | request->flags = nla_get_u32( | |
5898 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
5899 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && | |
5900 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
5901 | err = -EOPNOTSUPP; | |
5902 | goto out_free; | |
5903 | } | |
5904 | ||
5905 | if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { | |
5906 | if (!(wiphy->features & | |
5907 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) { | |
5908 | err = -EOPNOTSUPP; | |
5909 | goto out_free; | |
5910 | } | |
5911 | ||
5912 | if (wdev->current_bss) { | |
5913 | err = -EOPNOTSUPP; | |
5914 | goto out_free; | |
5915 | } | |
5916 | ||
5917 | err = nl80211_parse_random_mac(info->attrs, | |
5918 | request->mac_addr, | |
5919 | request->mac_addr_mask); | |
5920 | if (err) | |
5921 | goto out_free; | |
5922 | } | |
5923 | } | |
5924 | ||
5925 | request->no_cck = | |
5926 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
5927 | ||
5928 | request->wdev = wdev; | |
5929 | request->wiphy = &rdev->wiphy; | |
5930 | request->scan_start = jiffies; | |
5931 | ||
5932 | rdev->scan_req = request; | |
5933 | err = rdev_scan(rdev, request); | |
5934 | ||
5935 | if (!err) { | |
5936 | nl80211_send_scan_start(rdev, wdev); | |
5937 | if (wdev->netdev) | |
5938 | dev_hold(wdev->netdev); | |
5939 | } else { | |
5940 | out_free: | |
5941 | rdev->scan_req = NULL; | |
5942 | kfree(request); | |
5943 | } | |
5944 | ||
5945 | unlock: | |
5946 | return err; | |
5947 | } | |
5948 | ||
5949 | static struct cfg80211_sched_scan_request * | |
5950 | nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, | |
5951 | struct nlattr **attrs) | |
5952 | { | |
5953 | struct cfg80211_sched_scan_request *request; | |
5954 | struct nlattr *attr; | |
5955 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; | |
5956 | u32 interval; | |
5957 | enum ieee80211_band band; | |
5958 | size_t ie_len; | |
5959 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; | |
5960 | s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF; | |
5961 | ||
5962 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE])) | |
5963 | return ERR_PTR(-EINVAL); | |
5964 | ||
5965 | if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
5966 | return ERR_PTR(-EINVAL); | |
5967 | ||
5968 | interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
5969 | if (interval == 0) | |
5970 | return ERR_PTR(-EINVAL); | |
5971 | ||
5972 | if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
5973 | n_channels = validate_scan_freqs( | |
5974 | attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
5975 | if (!n_channels) | |
5976 | return ERR_PTR(-EINVAL); | |
5977 | } else { | |
5978 | n_channels = ieee80211_get_num_supported_channels(wiphy); | |
5979 | } | |
5980 | ||
5981 | if (attrs[NL80211_ATTR_SCAN_SSIDS]) | |
5982 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], | |
5983 | tmp) | |
5984 | n_ssids++; | |
5985 | ||
5986 | if (n_ssids > wiphy->max_sched_scan_ssids) | |
5987 | return ERR_PTR(-EINVAL); | |
5988 | ||
5989 | /* | |
5990 | * First, count the number of 'real' matchsets. Due to an issue with | |
5991 | * the old implementation, matchsets containing only the RSSI attribute | |
5992 | * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default' | |
5993 | * RSSI for all matchsets, rather than their own matchset for reporting | |
5994 | * all APs with a strong RSSI. This is needed to be compatible with | |
5995 | * older userspace that treated a matchset with only the RSSI as the | |
5996 | * global RSSI for all other matchsets - if there are other matchsets. | |
5997 | */ | |
5998 | if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
5999 | nla_for_each_nested(attr, | |
6000 | attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
6001 | tmp) { | |
6002 | struct nlattr *rssi; | |
6003 | ||
6004 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
6005 | nla_data(attr), nla_len(attr), | |
6006 | nl80211_match_policy); | |
6007 | if (err) | |
6008 | return ERR_PTR(err); | |
6009 | /* add other standalone attributes here */ | |
6010 | if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) { | |
6011 | n_match_sets++; | |
6012 | continue; | |
6013 | } | |
6014 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
6015 | if (rssi) | |
6016 | default_match_rssi = nla_get_s32(rssi); | |
6017 | } | |
6018 | } | |
6019 | ||
6020 | /* However, if there's no other matchset, add the RSSI one */ | |
6021 | if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF) | |
6022 | n_match_sets = 1; | |
6023 | ||
6024 | if (n_match_sets > wiphy->max_match_sets) | |
6025 | return ERR_PTR(-EINVAL); | |
6026 | ||
6027 | if (attrs[NL80211_ATTR_IE]) | |
6028 | ie_len = nla_len(attrs[NL80211_ATTR_IE]); | |
6029 | else | |
6030 | ie_len = 0; | |
6031 | ||
6032 | if (ie_len > wiphy->max_sched_scan_ie_len) | |
6033 | return ERR_PTR(-EINVAL); | |
6034 | ||
6035 | request = kzalloc(sizeof(*request) | |
6036 | + sizeof(*request->ssids) * n_ssids | |
6037 | + sizeof(*request->match_sets) * n_match_sets | |
6038 | + sizeof(*request->channels) * n_channels | |
6039 | + ie_len, GFP_KERNEL); | |
6040 | if (!request) | |
6041 | return ERR_PTR(-ENOMEM); | |
6042 | ||
6043 | if (n_ssids) | |
6044 | request->ssids = (void *)&request->channels[n_channels]; | |
6045 | request->n_ssids = n_ssids; | |
6046 | if (ie_len) { | |
6047 | if (n_ssids) | |
6048 | request->ie = (void *)(request->ssids + n_ssids); | |
6049 | else | |
6050 | request->ie = (void *)(request->channels + n_channels); | |
6051 | } | |
6052 | ||
6053 | if (n_match_sets) { | |
6054 | if (request->ie) | |
6055 | request->match_sets = (void *)(request->ie + ie_len); | |
6056 | else if (n_ssids) | |
6057 | request->match_sets = | |
6058 | (void *)(request->ssids + n_ssids); | |
6059 | else | |
6060 | request->match_sets = | |
6061 | (void *)(request->channels + n_channels); | |
6062 | } | |
6063 | request->n_match_sets = n_match_sets; | |
6064 | ||
6065 | i = 0; | |
6066 | if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
6067 | /* user specified, bail out if channel not found */ | |
6068 | nla_for_each_nested(attr, | |
6069 | attrs[NL80211_ATTR_SCAN_FREQUENCIES], | |
6070 | tmp) { | |
6071 | struct ieee80211_channel *chan; | |
6072 | ||
6073 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
6074 | ||
6075 | if (!chan) { | |
6076 | err = -EINVAL; | |
6077 | goto out_free; | |
6078 | } | |
6079 | ||
6080 | /* ignore disabled channels */ | |
6081 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
6082 | continue; | |
6083 | ||
6084 | request->channels[i] = chan; | |
6085 | i++; | |
6086 | } | |
6087 | } else { | |
6088 | /* all channels */ | |
6089 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
6090 | int j; | |
6091 | if (!wiphy->bands[band]) | |
6092 | continue; | |
6093 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
6094 | struct ieee80211_channel *chan; | |
6095 | ||
6096 | chan = &wiphy->bands[band]->channels[j]; | |
6097 | ||
6098 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
6099 | continue; | |
6100 | ||
6101 | request->channels[i] = chan; | |
6102 | i++; | |
6103 | } | |
6104 | } | |
6105 | } | |
6106 | ||
6107 | if (!i) { | |
6108 | err = -EINVAL; | |
6109 | goto out_free; | |
6110 | } | |
6111 | ||
6112 | request->n_channels = i; | |
6113 | ||
6114 | i = 0; | |
6115 | if (n_ssids) { | |
6116 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], | |
6117 | tmp) { | |
6118 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { | |
6119 | err = -EINVAL; | |
6120 | goto out_free; | |
6121 | } | |
6122 | request->ssids[i].ssid_len = nla_len(attr); | |
6123 | memcpy(request->ssids[i].ssid, nla_data(attr), | |
6124 | nla_len(attr)); | |
6125 | i++; | |
6126 | } | |
6127 | } | |
6128 | ||
6129 | i = 0; | |
6130 | if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
6131 | nla_for_each_nested(attr, | |
6132 | attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
6133 | tmp) { | |
6134 | struct nlattr *ssid, *rssi; | |
6135 | ||
6136 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
6137 | nla_data(attr), nla_len(attr), | |
6138 | nl80211_match_policy); | |
6139 | if (err) | |
6140 | goto out_free; | |
6141 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; | |
6142 | if (ssid) { | |
6143 | if (WARN_ON(i >= n_match_sets)) { | |
6144 | /* this indicates a programming error, | |
6145 | * the loop above should have verified | |
6146 | * things properly | |
6147 | */ | |
6148 | err = -EINVAL; | |
6149 | goto out_free; | |
6150 | } | |
6151 | ||
6152 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { | |
6153 | err = -EINVAL; | |
6154 | goto out_free; | |
6155 | } | |
6156 | memcpy(request->match_sets[i].ssid.ssid, | |
6157 | nla_data(ssid), nla_len(ssid)); | |
6158 | request->match_sets[i].ssid.ssid_len = | |
6159 | nla_len(ssid); | |
6160 | /* special attribute - old implemenation w/a */ | |
6161 | request->match_sets[i].rssi_thold = | |
6162 | default_match_rssi; | |
6163 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
6164 | if (rssi) | |
6165 | request->match_sets[i].rssi_thold = | |
6166 | nla_get_s32(rssi); | |
6167 | } | |
6168 | i++; | |
6169 | } | |
6170 | ||
6171 | /* there was no other matchset, so the RSSI one is alone */ | |
6172 | if (i == 0 && n_match_sets) | |
6173 | request->match_sets[0].rssi_thold = default_match_rssi; | |
6174 | ||
6175 | request->min_rssi_thold = INT_MAX; | |
6176 | for (i = 0; i < n_match_sets; i++) | |
6177 | request->min_rssi_thold = | |
6178 | min(request->match_sets[i].rssi_thold, | |
6179 | request->min_rssi_thold); | |
6180 | } else { | |
6181 | request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF; | |
6182 | } | |
6183 | ||
6184 | if (ie_len) { | |
6185 | request->ie_len = ie_len; | |
6186 | memcpy((void *)request->ie, | |
6187 | nla_data(attrs[NL80211_ATTR_IE]), | |
6188 | request->ie_len); | |
6189 | } | |
6190 | ||
6191 | if (attrs[NL80211_ATTR_SCAN_FLAGS]) { | |
6192 | request->flags = nla_get_u32( | |
6193 | attrs[NL80211_ATTR_SCAN_FLAGS]); | |
6194 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && | |
6195 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
6196 | err = -EOPNOTSUPP; | |
6197 | goto out_free; | |
6198 | } | |
6199 | ||
6200 | if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { | |
6201 | u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; | |
6202 | ||
6203 | if (!wdev) /* must be net-detect */ | |
6204 | flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
6205 | ||
6206 | if (!(wiphy->features & flg)) { | |
6207 | err = -EOPNOTSUPP; | |
6208 | goto out_free; | |
6209 | } | |
6210 | ||
6211 | if (wdev && wdev->current_bss) { | |
6212 | err = -EOPNOTSUPP; | |
6213 | goto out_free; | |
6214 | } | |
6215 | ||
6216 | err = nl80211_parse_random_mac(attrs, request->mac_addr, | |
6217 | request->mac_addr_mask); | |
6218 | if (err) | |
6219 | goto out_free; | |
6220 | } | |
6221 | } | |
6222 | ||
6223 | if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY]) | |
6224 | request->delay = | |
6225 | nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]); | |
6226 | ||
6227 | request->interval = interval; | |
6228 | request->scan_start = jiffies; | |
6229 | ||
6230 | return request; | |
6231 | ||
6232 | out_free: | |
6233 | kfree(request); | |
6234 | return ERR_PTR(err); | |
6235 | } | |
6236 | ||
6237 | static int nl80211_start_sched_scan(struct sk_buff *skb, | |
6238 | struct genl_info *info) | |
6239 | { | |
6240 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6241 | struct net_device *dev = info->user_ptr[1]; | |
6242 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6243 | struct cfg80211_sched_scan_request *sched_scan_req; | |
6244 | int err; | |
6245 | ||
6246 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
6247 | !rdev->ops->sched_scan_start) | |
6248 | return -EOPNOTSUPP; | |
6249 | ||
6250 | if (rdev->sched_scan_req) | |
6251 | return -EINPROGRESS; | |
6252 | ||
6253 | sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev, | |
6254 | info->attrs); | |
6255 | ||
6256 | err = PTR_ERR_OR_ZERO(sched_scan_req); | |
6257 | if (err) | |
6258 | goto out_err; | |
6259 | ||
6260 | err = rdev_sched_scan_start(rdev, dev, sched_scan_req); | |
6261 | if (err) | |
6262 | goto out_free; | |
6263 | ||
6264 | sched_scan_req->dev = dev; | |
6265 | sched_scan_req->wiphy = &rdev->wiphy; | |
6266 | ||
6267 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) | |
6268 | sched_scan_req->owner_nlportid = info->snd_portid; | |
6269 | ||
6270 | rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req); | |
6271 | ||
6272 | nl80211_send_sched_scan(rdev, dev, | |
6273 | NL80211_CMD_START_SCHED_SCAN); | |
6274 | return 0; | |
6275 | ||
6276 | out_free: | |
6277 | kfree(sched_scan_req); | |
6278 | out_err: | |
6279 | return err; | |
6280 | } | |
6281 | ||
6282 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
6283 | struct genl_info *info) | |
6284 | { | |
6285 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6286 | ||
6287 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
6288 | !rdev->ops->sched_scan_stop) | |
6289 | return -EOPNOTSUPP; | |
6290 | ||
6291 | return __cfg80211_stop_sched_scan(rdev, false); | |
6292 | } | |
6293 | ||
6294 | static int nl80211_start_radar_detection(struct sk_buff *skb, | |
6295 | struct genl_info *info) | |
6296 | { | |
6297 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6298 | struct net_device *dev = info->user_ptr[1]; | |
6299 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6300 | struct cfg80211_chan_def chandef; | |
6301 | enum nl80211_dfs_regions dfs_region; | |
6302 | unsigned int cac_time_ms; | |
6303 | int err; | |
6304 | ||
6305 | dfs_region = reg_get_dfs_region(wdev->wiphy); | |
6306 | if (dfs_region == NL80211_DFS_UNSET) | |
6307 | return -EINVAL; | |
6308 | ||
6309 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
6310 | if (err) | |
6311 | return err; | |
6312 | ||
6313 | if (netif_carrier_ok(dev)) | |
6314 | return -EBUSY; | |
6315 | ||
6316 | if (wdev->cac_started) | |
6317 | return -EBUSY; | |
6318 | ||
6319 | err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, | |
6320 | wdev->iftype); | |
6321 | if (err < 0) | |
6322 | return err; | |
6323 | ||
6324 | if (err == 0) | |
6325 | return -EINVAL; | |
6326 | ||
6327 | if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef)) | |
6328 | return -EINVAL; | |
6329 | ||
6330 | if (!rdev->ops->start_radar_detection) | |
6331 | return -EOPNOTSUPP; | |
6332 | ||
6333 | cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef); | |
6334 | if (WARN_ON(!cac_time_ms)) | |
6335 | cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; | |
6336 | ||
6337 | err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef, | |
6338 | cac_time_ms); | |
6339 | if (!err) { | |
6340 | wdev->chandef = chandef; | |
6341 | wdev->cac_started = true; | |
6342 | wdev->cac_start_time = jiffies; | |
6343 | wdev->cac_time_ms = cac_time_ms; | |
6344 | } | |
6345 | return err; | |
6346 | } | |
6347 | ||
6348 | static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) | |
6349 | { | |
6350 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6351 | struct net_device *dev = info->user_ptr[1]; | |
6352 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6353 | struct cfg80211_csa_settings params; | |
6354 | /* csa_attrs is defined static to avoid waste of stack size - this | |
6355 | * function is called under RTNL lock, so this should not be a problem. | |
6356 | */ | |
6357 | static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1]; | |
6358 | int err; | |
6359 | bool need_new_beacon = false; | |
6360 | int len, i; | |
6361 | u32 cs_count; | |
6362 | ||
6363 | if (!rdev->ops->channel_switch || | |
6364 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) | |
6365 | return -EOPNOTSUPP; | |
6366 | ||
6367 | switch (dev->ieee80211_ptr->iftype) { | |
6368 | case NL80211_IFTYPE_AP: | |
6369 | case NL80211_IFTYPE_P2P_GO: | |
6370 | need_new_beacon = true; | |
6371 | ||
6372 | /* useless if AP is not running */ | |
6373 | if (!wdev->beacon_interval) | |
6374 | return -ENOTCONN; | |
6375 | break; | |
6376 | case NL80211_IFTYPE_ADHOC: | |
6377 | if (!wdev->ssid_len) | |
6378 | return -ENOTCONN; | |
6379 | break; | |
6380 | case NL80211_IFTYPE_MESH_POINT: | |
6381 | if (!wdev->mesh_id_len) | |
6382 | return -ENOTCONN; | |
6383 | break; | |
6384 | default: | |
6385 | return -EOPNOTSUPP; | |
6386 | } | |
6387 | ||
6388 | memset(¶ms, 0, sizeof(params)); | |
6389 | ||
6390 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
6391 | !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]) | |
6392 | return -EINVAL; | |
6393 | ||
6394 | /* only important for AP, IBSS and mesh create IEs internally */ | |
6395 | if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES]) | |
6396 | return -EINVAL; | |
6397 | ||
6398 | /* Even though the attribute is u32, the specification says | |
6399 | * u8, so let's make sure we don't overflow. | |
6400 | */ | |
6401 | cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]); | |
6402 | if (cs_count > 255) | |
6403 | return -EINVAL; | |
6404 | ||
6405 | params.count = cs_count; | |
6406 | ||
6407 | if (!need_new_beacon) | |
6408 | goto skip_beacons; | |
6409 | ||
6410 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after); | |
6411 | if (err) | |
6412 | return err; | |
6413 | ||
6414 | err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX, | |
6415 | info->attrs[NL80211_ATTR_CSA_IES], | |
6416 | nl80211_policy); | |
6417 | if (err) | |
6418 | return err; | |
6419 | ||
6420 | err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa); | |
6421 | if (err) | |
6422 | return err; | |
6423 | ||
6424 | if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]) | |
6425 | return -EINVAL; | |
6426 | ||
6427 | len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); | |
6428 | if (!len || (len % sizeof(u16))) | |
6429 | return -EINVAL; | |
6430 | ||
6431 | params.n_counter_offsets_beacon = len / sizeof(u16); | |
6432 | if (rdev->wiphy.max_num_csa_counters && | |
6433 | (params.n_counter_offsets_beacon > | |
6434 | rdev->wiphy.max_num_csa_counters)) | |
6435 | return -EINVAL; | |
6436 | ||
6437 | params.counter_offsets_beacon = | |
6438 | nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); | |
6439 | ||
6440 | /* sanity checks - counters should fit and be the same */ | |
6441 | for (i = 0; i < params.n_counter_offsets_beacon; i++) { | |
6442 | u16 offset = params.counter_offsets_beacon[i]; | |
6443 | ||
6444 | if (offset >= params.beacon_csa.tail_len) | |
6445 | return -EINVAL; | |
6446 | ||
6447 | if (params.beacon_csa.tail[offset] != params.count) | |
6448 | return -EINVAL; | |
6449 | } | |
6450 | ||
6451 | if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) { | |
6452 | len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); | |
6453 | if (!len || (len % sizeof(u16))) | |
6454 | return -EINVAL; | |
6455 | ||
6456 | params.n_counter_offsets_presp = len / sizeof(u16); | |
6457 | if (rdev->wiphy.max_num_csa_counters && | |
6458 | (params.n_counter_offsets_beacon > | |
6459 | rdev->wiphy.max_num_csa_counters)) | |
6460 | return -EINVAL; | |
6461 | ||
6462 | params.counter_offsets_presp = | |
6463 | nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); | |
6464 | ||
6465 | /* sanity checks - counters should fit and be the same */ | |
6466 | for (i = 0; i < params.n_counter_offsets_presp; i++) { | |
6467 | u16 offset = params.counter_offsets_presp[i]; | |
6468 | ||
6469 | if (offset >= params.beacon_csa.probe_resp_len) | |
6470 | return -EINVAL; | |
6471 | ||
6472 | if (params.beacon_csa.probe_resp[offset] != | |
6473 | params.count) | |
6474 | return -EINVAL; | |
6475 | } | |
6476 | } | |
6477 | ||
6478 | skip_beacons: | |
6479 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); | |
6480 | if (err) | |
6481 | return err; | |
6482 | ||
6483 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef, | |
6484 | wdev->iftype)) | |
6485 | return -EINVAL; | |
6486 | ||
6487 | err = cfg80211_chandef_dfs_required(wdev->wiphy, | |
6488 | ¶ms.chandef, | |
6489 | wdev->iftype); | |
6490 | if (err < 0) | |
6491 | return err; | |
6492 | ||
6493 | if (err > 0) | |
6494 | params.radar_required = true; | |
6495 | ||
6496 | if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) | |
6497 | params.block_tx = true; | |
6498 | ||
6499 | wdev_lock(wdev); | |
6500 | err = rdev_channel_switch(rdev, dev, ¶ms); | |
6501 | wdev_unlock(wdev); | |
6502 | ||
6503 | return err; | |
6504 | } | |
6505 | ||
6506 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, | |
6507 | u32 seq, int flags, | |
6508 | struct cfg80211_registered_device *rdev, | |
6509 | struct wireless_dev *wdev, | |
6510 | struct cfg80211_internal_bss *intbss) | |
6511 | { | |
6512 | struct cfg80211_bss *res = &intbss->pub; | |
6513 | const struct cfg80211_bss_ies *ies; | |
6514 | void *hdr; | |
6515 | struct nlattr *bss; | |
6516 | ||
6517 | ASSERT_WDEV_LOCK(wdev); | |
6518 | ||
6519 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, | |
6520 | NL80211_CMD_NEW_SCAN_RESULTS); | |
6521 | if (!hdr) | |
6522 | return -1; | |
6523 | ||
6524 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); | |
6525 | ||
6526 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation)) | |
6527 | goto nla_put_failure; | |
6528 | if (wdev->netdev && | |
6529 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) | |
6530 | goto nla_put_failure; | |
6531 | if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
6532 | goto nla_put_failure; | |
6533 | ||
6534 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
6535 | if (!bss) | |
6536 | goto nla_put_failure; | |
6537 | if ((!is_zero_ether_addr(res->bssid) && | |
6538 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid))) | |
6539 | goto nla_put_failure; | |
6540 | ||
6541 | rcu_read_lock(); | |
6542 | /* indicate whether we have probe response data or not */ | |
6543 | if (rcu_access_pointer(res->proberesp_ies) && | |
6544 | nla_put_flag(msg, NL80211_BSS_PRESP_DATA)) | |
6545 | goto fail_unlock_rcu; | |
6546 | ||
6547 | /* this pointer prefers to be pointed to probe response data | |
6548 | * but is always valid | |
6549 | */ | |
6550 | ies = rcu_dereference(res->ies); | |
6551 | if (ies) { | |
6552 | if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) | |
6553 | goto fail_unlock_rcu; | |
6554 | if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
6555 | ies->len, ies->data)) | |
6556 | goto fail_unlock_rcu; | |
6557 | } | |
6558 | ||
6559 | /* and this pointer is always (unless driver didn't know) beacon data */ | |
6560 | ies = rcu_dereference(res->beacon_ies); | |
6561 | if (ies && ies->from_beacon) { | |
6562 | if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf)) | |
6563 | goto fail_unlock_rcu; | |
6564 | if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES, | |
6565 | ies->len, ies->data)) | |
6566 | goto fail_unlock_rcu; | |
6567 | } | |
6568 | rcu_read_unlock(); | |
6569 | ||
6570 | if (res->beacon_interval && | |
6571 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
6572 | goto nla_put_failure; | |
6573 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
6574 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
6575 | nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) || | |
6576 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, | |
6577 | jiffies_to_msecs(jiffies - intbss->ts))) | |
6578 | goto nla_put_failure; | |
6579 | ||
6580 | switch (rdev->wiphy.signal_type) { | |
6581 | case CFG80211_SIGNAL_TYPE_MBM: | |
6582 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) | |
6583 | goto nla_put_failure; | |
6584 | break; | |
6585 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
6586 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) | |
6587 | goto nla_put_failure; | |
6588 | break; | |
6589 | default: | |
6590 | break; | |
6591 | } | |
6592 | ||
6593 | switch (wdev->iftype) { | |
6594 | case NL80211_IFTYPE_P2P_CLIENT: | |
6595 | case NL80211_IFTYPE_STATION: | |
6596 | if (intbss == wdev->current_bss && | |
6597 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6598 | NL80211_BSS_STATUS_ASSOCIATED)) | |
6599 | goto nla_put_failure; | |
6600 | break; | |
6601 | case NL80211_IFTYPE_ADHOC: | |
6602 | if (intbss == wdev->current_bss && | |
6603 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6604 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
6605 | goto nla_put_failure; | |
6606 | break; | |
6607 | default: | |
6608 | break; | |
6609 | } | |
6610 | ||
6611 | nla_nest_end(msg, bss); | |
6612 | ||
6613 | genlmsg_end(msg, hdr); | |
6614 | return 0; | |
6615 | ||
6616 | fail_unlock_rcu: | |
6617 | rcu_read_unlock(); | |
6618 | nla_put_failure: | |
6619 | genlmsg_cancel(msg, hdr); | |
6620 | return -EMSGSIZE; | |
6621 | } | |
6622 | ||
6623 | static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb) | |
6624 | { | |
6625 | struct cfg80211_registered_device *rdev; | |
6626 | struct cfg80211_internal_bss *scan; | |
6627 | struct wireless_dev *wdev; | |
6628 | int start = cb->args[2], idx = 0; | |
6629 | int err; | |
6630 | ||
6631 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); | |
6632 | if (err) | |
6633 | return err; | |
6634 | ||
6635 | wdev_lock(wdev); | |
6636 | spin_lock_bh(&rdev->bss_lock); | |
6637 | cfg80211_bss_expire(rdev); | |
6638 | ||
6639 | cb->seq = rdev->bss_generation; | |
6640 | ||
6641 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
6642 | if (++idx <= start) | |
6643 | continue; | |
6644 | if (nl80211_send_bss(skb, cb, | |
6645 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6646 | rdev, wdev, scan) < 0) { | |
6647 | idx--; | |
6648 | break; | |
6649 | } | |
6650 | } | |
6651 | ||
6652 | spin_unlock_bh(&rdev->bss_lock); | |
6653 | wdev_unlock(wdev); | |
6654 | ||
6655 | cb->args[2] = idx; | |
6656 | nl80211_finish_wdev_dump(rdev); | |
6657 | ||
6658 | return skb->len; | |
6659 | } | |
6660 | ||
6661 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, | |
6662 | int flags, struct net_device *dev, | |
6663 | bool allow_radio_stats, | |
6664 | struct survey_info *survey) | |
6665 | { | |
6666 | void *hdr; | |
6667 | struct nlattr *infoattr; | |
6668 | ||
6669 | /* skip radio stats if userspace didn't request them */ | |
6670 | if (!survey->channel && !allow_radio_stats) | |
6671 | return 0; | |
6672 | ||
6673 | hdr = nl80211hdr_put(msg, portid, seq, flags, | |
6674 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
6675 | if (!hdr) | |
6676 | return -ENOMEM; | |
6677 | ||
6678 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) | |
6679 | goto nla_put_failure; | |
6680 | ||
6681 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
6682 | if (!infoattr) | |
6683 | goto nla_put_failure; | |
6684 | ||
6685 | if (survey->channel && | |
6686 | nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
6687 | survey->channel->center_freq)) | |
6688 | goto nla_put_failure; | |
6689 | ||
6690 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
6691 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
6692 | goto nla_put_failure; | |
6693 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
6694 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
6695 | goto nla_put_failure; | |
6696 | if ((survey->filled & SURVEY_INFO_TIME) && | |
6697 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME, | |
6698 | survey->time)) | |
6699 | goto nla_put_failure; | |
6700 | if ((survey->filled & SURVEY_INFO_TIME_BUSY) && | |
6701 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY, | |
6702 | survey->time_busy)) | |
6703 | goto nla_put_failure; | |
6704 | if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) && | |
6705 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY, | |
6706 | survey->time_ext_busy)) | |
6707 | goto nla_put_failure; | |
6708 | if ((survey->filled & SURVEY_INFO_TIME_RX) && | |
6709 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX, | |
6710 | survey->time_rx)) | |
6711 | goto nla_put_failure; | |
6712 | if ((survey->filled & SURVEY_INFO_TIME_TX) && | |
6713 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX, | |
6714 | survey->time_tx)) | |
6715 | goto nla_put_failure; | |
6716 | if ((survey->filled & SURVEY_INFO_TIME_SCAN) && | |
6717 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN, | |
6718 | survey->time_scan)) | |
6719 | goto nla_put_failure; | |
6720 | ||
6721 | nla_nest_end(msg, infoattr); | |
6722 | ||
6723 | genlmsg_end(msg, hdr); | |
6724 | return 0; | |
6725 | ||
6726 | nla_put_failure: | |
6727 | genlmsg_cancel(msg, hdr); | |
6728 | return -EMSGSIZE; | |
6729 | } | |
6730 | ||
6731 | static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) | |
6732 | { | |
6733 | struct survey_info survey; | |
6734 | struct cfg80211_registered_device *rdev; | |
6735 | struct wireless_dev *wdev; | |
6736 | int survey_idx = cb->args[2]; | |
6737 | int res; | |
6738 | bool radio_stats; | |
6739 | ||
6740 | res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); | |
6741 | if (res) | |
6742 | return res; | |
6743 | ||
6744 | /* prepare_wdev_dump parsed the attributes */ | |
6745 | radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS]; | |
6746 | ||
6747 | if (!wdev->netdev) { | |
6748 | res = -EINVAL; | |
6749 | goto out_err; | |
6750 | } | |
6751 | ||
6752 | if (!rdev->ops->dump_survey) { | |
6753 | res = -EOPNOTSUPP; | |
6754 | goto out_err; | |
6755 | } | |
6756 | ||
6757 | while (1) { | |
6758 | res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); | |
6759 | if (res == -ENOENT) | |
6760 | break; | |
6761 | if (res) | |
6762 | goto out_err; | |
6763 | ||
6764 | /* don't send disabled channels, but do send non-channel data */ | |
6765 | if (survey.channel && | |
6766 | survey.channel->flags & IEEE80211_CHAN_DISABLED) { | |
6767 | survey_idx++; | |
6768 | continue; | |
6769 | } | |
6770 | ||
6771 | if (nl80211_send_survey(skb, | |
6772 | NETLINK_CB(cb->skb).portid, | |
6773 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6774 | wdev->netdev, radio_stats, &survey) < 0) | |
6775 | goto out; | |
6776 | survey_idx++; | |
6777 | } | |
6778 | ||
6779 | out: | |
6780 | cb->args[2] = survey_idx; | |
6781 | res = skb->len; | |
6782 | out_err: | |
6783 | nl80211_finish_wdev_dump(rdev); | |
6784 | return res; | |
6785 | } | |
6786 | ||
6787 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
6788 | { | |
6789 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
6790 | NL80211_WPA_VERSION_2)); | |
6791 | } | |
6792 | ||
6793 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) | |
6794 | { | |
6795 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6796 | struct net_device *dev = info->user_ptr[1]; | |
6797 | struct ieee80211_channel *chan; | |
6798 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; | |
6799 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
6800 | enum nl80211_auth_type auth_type; | |
6801 | struct key_parse key; | |
6802 | bool local_state_change; | |
6803 | ||
6804 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
6805 | return -EINVAL; | |
6806 | ||
6807 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6808 | return -EINVAL; | |
6809 | ||
6810 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) | |
6811 | return -EINVAL; | |
6812 | ||
6813 | if (!info->attrs[NL80211_ATTR_SSID]) | |
6814 | return -EINVAL; | |
6815 | ||
6816 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
6817 | return -EINVAL; | |
6818 | ||
6819 | err = nl80211_parse_key(info, &key); | |
6820 | if (err) | |
6821 | return err; | |
6822 | ||
6823 | if (key.idx >= 0) { | |
6824 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) | |
6825 | return -EINVAL; | |
6826 | if (!key.p.key || !key.p.key_len) | |
6827 | return -EINVAL; | |
6828 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
6829 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
6830 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
6831 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
6832 | return -EINVAL; | |
6833 | if (key.idx > 4) | |
6834 | return -EINVAL; | |
6835 | } else { | |
6836 | key.p.key_len = 0; | |
6837 | key.p.key = NULL; | |
6838 | } | |
6839 | ||
6840 | if (key.idx >= 0) { | |
6841 | int i; | |
6842 | bool ok = false; | |
6843 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
6844 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
6845 | ok = true; | |
6846 | break; | |
6847 | } | |
6848 | } | |
6849 | if (!ok) | |
6850 | return -EINVAL; | |
6851 | } | |
6852 | ||
6853 | if (!rdev->ops->auth) | |
6854 | return -EOPNOTSUPP; | |
6855 | ||
6856 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
6857 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
6858 | return -EOPNOTSUPP; | |
6859 | ||
6860 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6861 | chan = nl80211_get_valid_chan(&rdev->wiphy, | |
6862 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
6863 | if (!chan) | |
6864 | return -EINVAL; | |
6865 | ||
6866 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
6867 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
6868 | ||
6869 | if (info->attrs[NL80211_ATTR_IE]) { | |
6870 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
6871 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
6872 | } | |
6873 | ||
6874 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
6875 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) | |
6876 | return -EINVAL; | |
6877 | ||
6878 | if (auth_type == NL80211_AUTHTYPE_SAE && | |
6879 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
6880 | return -EINVAL; | |
6881 | ||
6882 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
6883 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
6884 | return -EINVAL; | |
6885 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
6886 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
6887 | /* need to include at least Auth Transaction and Status Code */ | |
6888 | if (sae_data_len < 4) | |
6889 | return -EINVAL; | |
6890 | } | |
6891 | ||
6892 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; | |
6893 | ||
6894 | /* | |
6895 | * Since we no longer track auth state, ignore | |
6896 | * requests to only change local state. | |
6897 | */ | |
6898 | if (local_state_change) | |
6899 | return 0; | |
6900 | ||
6901 | wdev_lock(dev->ieee80211_ptr); | |
6902 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, | |
6903 | ssid, ssid_len, ie, ie_len, | |
6904 | key.p.key, key.p.key_len, key.idx, | |
6905 | sae_data, sae_data_len); | |
6906 | wdev_unlock(dev->ieee80211_ptr); | |
6907 | return err; | |
6908 | } | |
6909 | ||
6910 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, | |
6911 | struct genl_info *info, | |
6912 | struct cfg80211_crypto_settings *settings, | |
6913 | int cipher_limit) | |
6914 | { | |
6915 | memset(settings, 0, sizeof(*settings)); | |
6916 | ||
6917 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; | |
6918 | ||
6919 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { | |
6920 | u16 proto; | |
6921 | proto = nla_get_u16( | |
6922 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
6923 | settings->control_port_ethertype = cpu_to_be16(proto); | |
6924 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
6925 | proto != ETH_P_PAE) | |
6926 | return -EINVAL; | |
6927 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
6928 | settings->control_port_no_encrypt = true; | |
6929 | } else | |
6930 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
6931 | ||
6932 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { | |
6933 | void *data; | |
6934 | int len, i; | |
6935 | ||
6936 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
6937 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
6938 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
6939 | ||
6940 | if (len % sizeof(u32)) | |
6941 | return -EINVAL; | |
6942 | ||
6943 | if (settings->n_ciphers_pairwise > cipher_limit) | |
6944 | return -EINVAL; | |
6945 | ||
6946 | memcpy(settings->ciphers_pairwise, data, len); | |
6947 | ||
6948 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
6949 | if (!cfg80211_supported_cipher_suite( | |
6950 | &rdev->wiphy, | |
6951 | settings->ciphers_pairwise[i])) | |
6952 | return -EINVAL; | |
6953 | } | |
6954 | ||
6955 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
6956 | settings->cipher_group = | |
6957 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
6958 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, | |
6959 | settings->cipher_group)) | |
6960 | return -EINVAL; | |
6961 | } | |
6962 | ||
6963 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
6964 | settings->wpa_versions = | |
6965 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
6966 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
6967 | return -EINVAL; | |
6968 | } | |
6969 | ||
6970 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
6971 | void *data; | |
6972 | int len; | |
6973 | ||
6974 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
6975 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
6976 | settings->n_akm_suites = len / sizeof(u32); | |
6977 | ||
6978 | if (len % sizeof(u32)) | |
6979 | return -EINVAL; | |
6980 | ||
6981 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) | |
6982 | return -EINVAL; | |
6983 | ||
6984 | memcpy(settings->akm_suites, data, len); | |
6985 | } | |
6986 | ||
6987 | return 0; | |
6988 | } | |
6989 | ||
6990 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) | |
6991 | { | |
6992 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6993 | struct net_device *dev = info->user_ptr[1]; | |
6994 | struct ieee80211_channel *chan; | |
6995 | struct cfg80211_assoc_request req = {}; | |
6996 | const u8 *bssid, *ssid; | |
6997 | int err, ssid_len = 0; | |
6998 | ||
6999 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7000 | return -EINVAL; | |
7001 | ||
7002 | if (!info->attrs[NL80211_ATTR_MAC] || | |
7003 | !info->attrs[NL80211_ATTR_SSID] || | |
7004 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
7005 | return -EINVAL; | |
7006 | ||
7007 | if (!rdev->ops->assoc) | |
7008 | return -EOPNOTSUPP; | |
7009 | ||
7010 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
7011 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7012 | return -EOPNOTSUPP; | |
7013 | ||
7014 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7015 | ||
7016 | chan = nl80211_get_valid_chan(&rdev->wiphy, | |
7017 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7018 | if (!chan) | |
7019 | return -EINVAL; | |
7020 | ||
7021 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
7022 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7023 | ||
7024 | if (info->attrs[NL80211_ATTR_IE]) { | |
7025 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7026 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7027 | } | |
7028 | ||
7029 | if (info->attrs[NL80211_ATTR_USE_MFP]) { | |
7030 | enum nl80211_mfp mfp = | |
7031 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
7032 | if (mfp == NL80211_MFP_REQUIRED) | |
7033 | req.use_mfp = true; | |
7034 | else if (mfp != NL80211_MFP_NO) | |
7035 | return -EINVAL; | |
7036 | } | |
7037 | ||
7038 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) | |
7039 | req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
7040 | ||
7041 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) | |
7042 | req.flags |= ASSOC_REQ_DISABLE_HT; | |
7043 | ||
7044 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7045 | memcpy(&req.ht_capa_mask, | |
7046 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7047 | sizeof(req.ht_capa_mask)); | |
7048 | ||
7049 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
7050 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7051 | return -EINVAL; | |
7052 | memcpy(&req.ht_capa, | |
7053 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7054 | sizeof(req.ht_capa)); | |
7055 | } | |
7056 | ||
7057 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) | |
7058 | req.flags |= ASSOC_REQ_DISABLE_VHT; | |
7059 | ||
7060 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
7061 | memcpy(&req.vht_capa_mask, | |
7062 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
7063 | sizeof(req.vht_capa_mask)); | |
7064 | ||
7065 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
7066 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
7067 | return -EINVAL; | |
7068 | memcpy(&req.vht_capa, | |
7069 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
7070 | sizeof(req.vht_capa)); | |
7071 | } | |
7072 | ||
7073 | if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { | |
7074 | if (!(rdev->wiphy.features & | |
7075 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) || | |
7076 | !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) | |
7077 | return -EINVAL; | |
7078 | req.flags |= ASSOC_REQ_USE_RRM; | |
7079 | } | |
7080 | ||
7081 | err = nl80211_crypto_settings(rdev, info, &req.crypto, 1); | |
7082 | if (!err) { | |
7083 | wdev_lock(dev->ieee80211_ptr); | |
7084 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, | |
7085 | ssid, ssid_len, &req); | |
7086 | wdev_unlock(dev->ieee80211_ptr); | |
7087 | } | |
7088 | ||
7089 | return err; | |
7090 | } | |
7091 | ||
7092 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
7093 | { | |
7094 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7095 | struct net_device *dev = info->user_ptr[1]; | |
7096 | const u8 *ie = NULL, *bssid; | |
7097 | int ie_len = 0, err; | |
7098 | u16 reason_code; | |
7099 | bool local_state_change; | |
7100 | ||
7101 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7102 | return -EINVAL; | |
7103 | ||
7104 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7105 | return -EINVAL; | |
7106 | ||
7107 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7108 | return -EINVAL; | |
7109 | ||
7110 | if (!rdev->ops->deauth) | |
7111 | return -EOPNOTSUPP; | |
7112 | ||
7113 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
7114 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7115 | return -EOPNOTSUPP; | |
7116 | ||
7117 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7118 | ||
7119 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
7120 | if (reason_code == 0) { | |
7121 | /* Reason Code 0 is reserved */ | |
7122 | return -EINVAL; | |
7123 | } | |
7124 | ||
7125 | if (info->attrs[NL80211_ATTR_IE]) { | |
7126 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7127 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7128 | } | |
7129 | ||
7130 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; | |
7131 | ||
7132 | wdev_lock(dev->ieee80211_ptr); | |
7133 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
7134 | local_state_change); | |
7135 | wdev_unlock(dev->ieee80211_ptr); | |
7136 | return err; | |
7137 | } | |
7138 | ||
7139 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
7140 | { | |
7141 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7142 | struct net_device *dev = info->user_ptr[1]; | |
7143 | const u8 *ie = NULL, *bssid; | |
7144 | int ie_len = 0, err; | |
7145 | u16 reason_code; | |
7146 | bool local_state_change; | |
7147 | ||
7148 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7149 | return -EINVAL; | |
7150 | ||
7151 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7152 | return -EINVAL; | |
7153 | ||
7154 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7155 | return -EINVAL; | |
7156 | ||
7157 | if (!rdev->ops->disassoc) | |
7158 | return -EOPNOTSUPP; | |
7159 | ||
7160 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
7161 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7162 | return -EOPNOTSUPP; | |
7163 | ||
7164 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7165 | ||
7166 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
7167 | if (reason_code == 0) { | |
7168 | /* Reason Code 0 is reserved */ | |
7169 | return -EINVAL; | |
7170 | } | |
7171 | ||
7172 | if (info->attrs[NL80211_ATTR_IE]) { | |
7173 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7174 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7175 | } | |
7176 | ||
7177 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; | |
7178 | ||
7179 | wdev_lock(dev->ieee80211_ptr); | |
7180 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
7181 | local_state_change); | |
7182 | wdev_unlock(dev->ieee80211_ptr); | |
7183 | return err; | |
7184 | } | |
7185 | ||
7186 | static bool | |
7187 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
7188 | int mcast_rate[IEEE80211_NUM_BANDS], | |
7189 | int rateval) | |
7190 | { | |
7191 | struct wiphy *wiphy = &rdev->wiphy; | |
7192 | bool found = false; | |
7193 | int band, i; | |
7194 | ||
7195 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
7196 | struct ieee80211_supported_band *sband; | |
7197 | ||
7198 | sband = wiphy->bands[band]; | |
7199 | if (!sband) | |
7200 | continue; | |
7201 | ||
7202 | for (i = 0; i < sband->n_bitrates; i++) { | |
7203 | if (sband->bitrates[i].bitrate == rateval) { | |
7204 | mcast_rate[band] = i + 1; | |
7205 | found = true; | |
7206 | break; | |
7207 | } | |
7208 | } | |
7209 | } | |
7210 | ||
7211 | return found; | |
7212 | } | |
7213 | ||
7214 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) | |
7215 | { | |
7216 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7217 | struct net_device *dev = info->user_ptr[1]; | |
7218 | struct cfg80211_ibss_params ibss; | |
7219 | struct wiphy *wiphy; | |
7220 | struct cfg80211_cached_keys *connkeys = NULL; | |
7221 | int err; | |
7222 | ||
7223 | memset(&ibss, 0, sizeof(ibss)); | |
7224 | ||
7225 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7226 | return -EINVAL; | |
7227 | ||
7228 | if (!info->attrs[NL80211_ATTR_SSID] || | |
7229 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
7230 | return -EINVAL; | |
7231 | ||
7232 | ibss.beacon_interval = 100; | |
7233 | ||
7234 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
7235 | ibss.beacon_interval = | |
7236 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
7237 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
7238 | return -EINVAL; | |
7239 | } | |
7240 | ||
7241 | if (!rdev->ops->join_ibss) | |
7242 | return -EOPNOTSUPP; | |
7243 | ||
7244 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) | |
7245 | return -EOPNOTSUPP; | |
7246 | ||
7247 | wiphy = &rdev->wiphy; | |
7248 | ||
7249 | if (info->attrs[NL80211_ATTR_MAC]) { | |
7250 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7251 | ||
7252 | if (!is_valid_ether_addr(ibss.bssid)) | |
7253 | return -EINVAL; | |
7254 | } | |
7255 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
7256 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7257 | ||
7258 | if (info->attrs[NL80211_ATTR_IE]) { | |
7259 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7260 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7261 | } | |
7262 | ||
7263 | err = nl80211_parse_chandef(rdev, info, &ibss.chandef); | |
7264 | if (err) | |
7265 | return err; | |
7266 | ||
7267 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef, | |
7268 | NL80211_IFTYPE_ADHOC)) | |
7269 | return -EINVAL; | |
7270 | ||
7271 | switch (ibss.chandef.width) { | |
7272 | case NL80211_CHAN_WIDTH_5: | |
7273 | case NL80211_CHAN_WIDTH_10: | |
7274 | case NL80211_CHAN_WIDTH_20_NOHT: | |
7275 | break; | |
7276 | case NL80211_CHAN_WIDTH_20: | |
7277 | case NL80211_CHAN_WIDTH_40: | |
7278 | if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS) | |
7279 | break; | |
7280 | default: | |
7281 | return -EINVAL; | |
7282 | } | |
7283 | ||
7284 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
7285 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
7286 | ||
7287 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { | |
7288 | u8 *rates = | |
7289 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
7290 | int n_rates = | |
7291 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
7292 | struct ieee80211_supported_band *sband = | |
7293 | wiphy->bands[ibss.chandef.chan->band]; | |
7294 | ||
7295 | err = ieee80211_get_ratemask(sband, rates, n_rates, | |
7296 | &ibss.basic_rates); | |
7297 | if (err) | |
7298 | return err; | |
7299 | } | |
7300 | ||
7301 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7302 | memcpy(&ibss.ht_capa_mask, | |
7303 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7304 | sizeof(ibss.ht_capa_mask)); | |
7305 | ||
7306 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
7307 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7308 | return -EINVAL; | |
7309 | memcpy(&ibss.ht_capa, | |
7310 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7311 | sizeof(ibss.ht_capa)); | |
7312 | } | |
7313 | ||
7314 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
7315 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
7316 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
7317 | return -EINVAL; | |
7318 | ||
7319 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
7320 | bool no_ht = false; | |
7321 | ||
7322 | connkeys = nl80211_parse_connkeys(rdev, | |
7323 | info->attrs[NL80211_ATTR_KEYS], | |
7324 | &no_ht); | |
7325 | if (IS_ERR(connkeys)) | |
7326 | return PTR_ERR(connkeys); | |
7327 | ||
7328 | if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) && | |
7329 | no_ht) { | |
7330 | kfree(connkeys); | |
7331 | return -EINVAL; | |
7332 | } | |
7333 | } | |
7334 | ||
7335 | ibss.control_port = | |
7336 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
7337 | ||
7338 | ibss.userspace_handles_dfs = | |
7339 | nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]); | |
7340 | ||
7341 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); | |
7342 | if (err) | |
7343 | kzfree(connkeys); | |
7344 | return err; | |
7345 | } | |
7346 | ||
7347 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
7348 | { | |
7349 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7350 | struct net_device *dev = info->user_ptr[1]; | |
7351 | ||
7352 | if (!rdev->ops->leave_ibss) | |
7353 | return -EOPNOTSUPP; | |
7354 | ||
7355 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) | |
7356 | return -EOPNOTSUPP; | |
7357 | ||
7358 | return cfg80211_leave_ibss(rdev, dev, false); | |
7359 | } | |
7360 | ||
7361 | static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info) | |
7362 | { | |
7363 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7364 | struct net_device *dev = info->user_ptr[1]; | |
7365 | int mcast_rate[IEEE80211_NUM_BANDS]; | |
7366 | u32 nla_rate; | |
7367 | int err; | |
7368 | ||
7369 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
7370 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
7371 | return -EOPNOTSUPP; | |
7372 | ||
7373 | if (!rdev->ops->set_mcast_rate) | |
7374 | return -EOPNOTSUPP; | |
7375 | ||
7376 | memset(mcast_rate, 0, sizeof(mcast_rate)); | |
7377 | ||
7378 | if (!info->attrs[NL80211_ATTR_MCAST_RATE]) | |
7379 | return -EINVAL; | |
7380 | ||
7381 | nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]); | |
7382 | if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate)) | |
7383 | return -EINVAL; | |
7384 | ||
7385 | err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate); | |
7386 | ||
7387 | return err; | |
7388 | } | |
7389 | ||
7390 | static struct sk_buff * | |
7391 | __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev, | |
7392 | int approxlen, u32 portid, u32 seq, | |
7393 | enum nl80211_commands cmd, | |
7394 | enum nl80211_attrs attr, | |
7395 | const struct nl80211_vendor_cmd_info *info, | |
7396 | gfp_t gfp) | |
7397 | { | |
7398 | struct sk_buff *skb; | |
7399 | void *hdr; | |
7400 | struct nlattr *data; | |
7401 | ||
7402 | skb = nlmsg_new(approxlen + 100, gfp); | |
7403 | if (!skb) | |
7404 | return NULL; | |
7405 | ||
7406 | hdr = nl80211hdr_put(skb, portid, seq, 0, cmd); | |
7407 | if (!hdr) { | |
7408 | kfree_skb(skb); | |
7409 | return NULL; | |
7410 | } | |
7411 | ||
7412 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
7413 | goto nla_put_failure; | |
7414 | ||
7415 | if (info) { | |
7416 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID, | |
7417 | info->vendor_id)) | |
7418 | goto nla_put_failure; | |
7419 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD, | |
7420 | info->subcmd)) | |
7421 | goto nla_put_failure; | |
7422 | } | |
7423 | ||
7424 | data = nla_nest_start(skb, attr); | |
7425 | ||
7426 | ((void **)skb->cb)[0] = rdev; | |
7427 | ((void **)skb->cb)[1] = hdr; | |
7428 | ((void **)skb->cb)[2] = data; | |
7429 | ||
7430 | return skb; | |
7431 | ||
7432 | nla_put_failure: | |
7433 | kfree_skb(skb); | |
7434 | return NULL; | |
7435 | } | |
7436 | ||
7437 | struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, | |
7438 | enum nl80211_commands cmd, | |
7439 | enum nl80211_attrs attr, | |
7440 | int vendor_event_idx, | |
7441 | int approxlen, gfp_t gfp) | |
7442 | { | |
7443 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
7444 | const struct nl80211_vendor_cmd_info *info; | |
7445 | ||
7446 | switch (cmd) { | |
7447 | case NL80211_CMD_TESTMODE: | |
7448 | if (WARN_ON(vendor_event_idx != -1)) | |
7449 | return NULL; | |
7450 | info = NULL; | |
7451 | break; | |
7452 | case NL80211_CMD_VENDOR: | |
7453 | if (WARN_ON(vendor_event_idx < 0 || | |
7454 | vendor_event_idx >= wiphy->n_vendor_events)) | |
7455 | return NULL; | |
7456 | info = &wiphy->vendor_events[vendor_event_idx]; | |
7457 | break; | |
7458 | default: | |
7459 | WARN_ON(1); | |
7460 | return NULL; | |
7461 | } | |
7462 | ||
7463 | return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0, | |
7464 | cmd, attr, info, gfp); | |
7465 | } | |
7466 | EXPORT_SYMBOL(__cfg80211_alloc_event_skb); | |
7467 | ||
7468 | void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp) | |
7469 | { | |
7470 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
7471 | void *hdr = ((void **)skb->cb)[1]; | |
7472 | struct nlattr *data = ((void **)skb->cb)[2]; | |
7473 | enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE; | |
7474 | ||
7475 | /* clear CB data for netlink core to own from now on */ | |
7476 | memset(skb->cb, 0, sizeof(skb->cb)); | |
7477 | ||
7478 | nla_nest_end(skb, data); | |
7479 | genlmsg_end(skb, hdr); | |
7480 | ||
7481 | if (data->nla_type == NL80211_ATTR_VENDOR_DATA) | |
7482 | mcgrp = NL80211_MCGRP_VENDOR; | |
7483 | ||
7484 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0, | |
7485 | mcgrp, gfp); | |
7486 | } | |
7487 | EXPORT_SYMBOL(__cfg80211_send_event_skb); | |
7488 | ||
7489 | #ifdef CONFIG_NL80211_TESTMODE | |
7490 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
7491 | { | |
7492 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7493 | struct wireless_dev *wdev = | |
7494 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
7495 | int err; | |
7496 | ||
7497 | if (!rdev->ops->testmode_cmd) | |
7498 | return -EOPNOTSUPP; | |
7499 | ||
7500 | if (IS_ERR(wdev)) { | |
7501 | err = PTR_ERR(wdev); | |
7502 | if (err != -EINVAL) | |
7503 | return err; | |
7504 | wdev = NULL; | |
7505 | } else if (wdev->wiphy != &rdev->wiphy) { | |
7506 | return -EINVAL; | |
7507 | } | |
7508 | ||
7509 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
7510 | return -EINVAL; | |
7511 | ||
7512 | rdev->cur_cmd_info = info; | |
7513 | err = rdev_testmode_cmd(rdev, wdev, | |
7514 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
7515 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
7516 | rdev->cur_cmd_info = NULL; | |
7517 | ||
7518 | return err; | |
7519 | } | |
7520 | ||
7521 | static int nl80211_testmode_dump(struct sk_buff *skb, | |
7522 | struct netlink_callback *cb) | |
7523 | { | |
7524 | struct cfg80211_registered_device *rdev; | |
7525 | int err; | |
7526 | long phy_idx; | |
7527 | void *data = NULL; | |
7528 | int data_len = 0; | |
7529 | ||
7530 | rtnl_lock(); | |
7531 | ||
7532 | if (cb->args[0]) { | |
7533 | /* | |
7534 | * 0 is a valid index, but not valid for args[0], | |
7535 | * so we need to offset by 1. | |
7536 | */ | |
7537 | phy_idx = cb->args[0] - 1; | |
7538 | } else { | |
7539 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
7540 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
7541 | nl80211_policy); | |
7542 | if (err) | |
7543 | goto out_err; | |
7544 | ||
7545 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), | |
7546 | nl80211_fam.attrbuf); | |
7547 | if (IS_ERR(rdev)) { | |
7548 | err = PTR_ERR(rdev); | |
7549 | goto out_err; | |
7550 | } | |
7551 | phy_idx = rdev->wiphy_idx; | |
7552 | rdev = NULL; | |
7553 | ||
7554 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) | |
7555 | cb->args[1] = | |
7556 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
7557 | } | |
7558 | ||
7559 | if (cb->args[1]) { | |
7560 | data = nla_data((void *)cb->args[1]); | |
7561 | data_len = nla_len((void *)cb->args[1]); | |
7562 | } | |
7563 | ||
7564 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); | |
7565 | if (!rdev) { | |
7566 | err = -ENOENT; | |
7567 | goto out_err; | |
7568 | } | |
7569 | ||
7570 | if (!rdev->ops->testmode_dump) { | |
7571 | err = -EOPNOTSUPP; | |
7572 | goto out_err; | |
7573 | } | |
7574 | ||
7575 | while (1) { | |
7576 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, | |
7577 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
7578 | NL80211_CMD_TESTMODE); | |
7579 | struct nlattr *tmdata; | |
7580 | ||
7581 | if (!hdr) | |
7582 | break; | |
7583 | ||
7584 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { | |
7585 | genlmsg_cancel(skb, hdr); | |
7586 | break; | |
7587 | } | |
7588 | ||
7589 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
7590 | if (!tmdata) { | |
7591 | genlmsg_cancel(skb, hdr); | |
7592 | break; | |
7593 | } | |
7594 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); | |
7595 | nla_nest_end(skb, tmdata); | |
7596 | ||
7597 | if (err == -ENOBUFS || err == -ENOENT) { | |
7598 | genlmsg_cancel(skb, hdr); | |
7599 | break; | |
7600 | } else if (err) { | |
7601 | genlmsg_cancel(skb, hdr); | |
7602 | goto out_err; | |
7603 | } | |
7604 | ||
7605 | genlmsg_end(skb, hdr); | |
7606 | } | |
7607 | ||
7608 | err = skb->len; | |
7609 | /* see above */ | |
7610 | cb->args[0] = phy_idx + 1; | |
7611 | out_err: | |
7612 | rtnl_unlock(); | |
7613 | return err; | |
7614 | } | |
7615 | #endif | |
7616 | ||
7617 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) | |
7618 | { | |
7619 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7620 | struct net_device *dev = info->user_ptr[1]; | |
7621 | struct cfg80211_connect_params connect; | |
7622 | struct wiphy *wiphy; | |
7623 | struct cfg80211_cached_keys *connkeys = NULL; | |
7624 | int err; | |
7625 | ||
7626 | memset(&connect, 0, sizeof(connect)); | |
7627 | ||
7628 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7629 | return -EINVAL; | |
7630 | ||
7631 | if (!info->attrs[NL80211_ATTR_SSID] || | |
7632 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
7633 | return -EINVAL; | |
7634 | ||
7635 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
7636 | connect.auth_type = | |
7637 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
7638 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, | |
7639 | NL80211_CMD_CONNECT)) | |
7640 | return -EINVAL; | |
7641 | } else | |
7642 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
7643 | ||
7644 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
7645 | ||
7646 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, | |
7647 | NL80211_MAX_NR_CIPHER_SUITES); | |
7648 | if (err) | |
7649 | return err; | |
7650 | ||
7651 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
7652 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7653 | return -EOPNOTSUPP; | |
7654 | ||
7655 | wiphy = &rdev->wiphy; | |
7656 | ||
7657 | connect.bg_scan_period = -1; | |
7658 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
7659 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
7660 | connect.bg_scan_period = | |
7661 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
7662 | } | |
7663 | ||
7664 | if (info->attrs[NL80211_ATTR_MAC]) | |
7665 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7666 | else if (info->attrs[NL80211_ATTR_MAC_HINT]) | |
7667 | connect.bssid_hint = | |
7668 | nla_data(info->attrs[NL80211_ATTR_MAC_HINT]); | |
7669 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
7670 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7671 | ||
7672 | if (info->attrs[NL80211_ATTR_IE]) { | |
7673 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7674 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7675 | } | |
7676 | ||
7677 | if (info->attrs[NL80211_ATTR_USE_MFP]) { | |
7678 | connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
7679 | if (connect.mfp != NL80211_MFP_REQUIRED && | |
7680 | connect.mfp != NL80211_MFP_NO) | |
7681 | return -EINVAL; | |
7682 | } else { | |
7683 | connect.mfp = NL80211_MFP_NO; | |
7684 | } | |
7685 | ||
7686 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
7687 | connect.channel = nl80211_get_valid_chan( | |
7688 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7689 | if (!connect.channel) | |
7690 | return -EINVAL; | |
7691 | } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) { | |
7692 | connect.channel_hint = nl80211_get_valid_chan( | |
7693 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]); | |
7694 | if (!connect.channel_hint) | |
7695 | return -EINVAL; | |
7696 | } | |
7697 | ||
7698 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
7699 | connkeys = nl80211_parse_connkeys(rdev, | |
7700 | info->attrs[NL80211_ATTR_KEYS], NULL); | |
7701 | if (IS_ERR(connkeys)) | |
7702 | return PTR_ERR(connkeys); | |
7703 | } | |
7704 | ||
7705 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) | |
7706 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
7707 | ||
7708 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7709 | memcpy(&connect.ht_capa_mask, | |
7710 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7711 | sizeof(connect.ht_capa_mask)); | |
7712 | ||
7713 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
7714 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { | |
7715 | kzfree(connkeys); | |
7716 | return -EINVAL; | |
7717 | } | |
7718 | memcpy(&connect.ht_capa, | |
7719 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7720 | sizeof(connect.ht_capa)); | |
7721 | } | |
7722 | ||
7723 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) | |
7724 | connect.flags |= ASSOC_REQ_DISABLE_VHT; | |
7725 | ||
7726 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
7727 | memcpy(&connect.vht_capa_mask, | |
7728 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
7729 | sizeof(connect.vht_capa_mask)); | |
7730 | ||
7731 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
7732 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) { | |
7733 | kzfree(connkeys); | |
7734 | return -EINVAL; | |
7735 | } | |
7736 | memcpy(&connect.vht_capa, | |
7737 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
7738 | sizeof(connect.vht_capa)); | |
7739 | } | |
7740 | ||
7741 | if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { | |
7742 | if (!(rdev->wiphy.features & | |
7743 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) || | |
7744 | !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) | |
7745 | return -EINVAL; | |
7746 | connect.flags |= ASSOC_REQ_USE_RRM; | |
7747 | } | |
7748 | ||
7749 | wdev_lock(dev->ieee80211_ptr); | |
7750 | err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL); | |
7751 | wdev_unlock(dev->ieee80211_ptr); | |
7752 | if (err) | |
7753 | kzfree(connkeys); | |
7754 | return err; | |
7755 | } | |
7756 | ||
7757 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
7758 | { | |
7759 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7760 | struct net_device *dev = info->user_ptr[1]; | |
7761 | u16 reason; | |
7762 | int ret; | |
7763 | ||
7764 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7765 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
7766 | else | |
7767 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
7768 | ||
7769 | if (reason == 0) | |
7770 | return -EINVAL; | |
7771 | ||
7772 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
7773 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7774 | return -EOPNOTSUPP; | |
7775 | ||
7776 | wdev_lock(dev->ieee80211_ptr); | |
7777 | ret = cfg80211_disconnect(rdev, dev, reason, true); | |
7778 | wdev_unlock(dev->ieee80211_ptr); | |
7779 | return ret; | |
7780 | } | |
7781 | ||
7782 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) | |
7783 | { | |
7784 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7785 | struct net *net; | |
7786 | int err; | |
7787 | ||
7788 | if (info->attrs[NL80211_ATTR_PID]) { | |
7789 | u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
7790 | ||
7791 | net = get_net_ns_by_pid(pid); | |
7792 | } else if (info->attrs[NL80211_ATTR_NETNS_FD]) { | |
7793 | u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]); | |
7794 | ||
7795 | net = get_net_ns_by_fd(fd); | |
7796 | } else { | |
7797 | return -EINVAL; | |
7798 | } | |
7799 | ||
7800 | if (IS_ERR(net)) | |
7801 | return PTR_ERR(net); | |
7802 | ||
7803 | err = 0; | |
7804 | ||
7805 | /* check if anything to do */ | |
7806 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) | |
7807 | err = cfg80211_switch_netns(rdev, net); | |
7808 | ||
7809 | put_net(net); | |
7810 | return err; | |
7811 | } | |
7812 | ||
7813 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) | |
7814 | { | |
7815 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7816 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, | |
7817 | struct cfg80211_pmksa *pmksa) = NULL; | |
7818 | struct net_device *dev = info->user_ptr[1]; | |
7819 | struct cfg80211_pmksa pmksa; | |
7820 | ||
7821 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
7822 | ||
7823 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7824 | return -EINVAL; | |
7825 | ||
7826 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
7827 | return -EINVAL; | |
7828 | ||
7829 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); | |
7830 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7831 | ||
7832 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
7833 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7834 | return -EOPNOTSUPP; | |
7835 | ||
7836 | switch (info->genlhdr->cmd) { | |
7837 | case NL80211_CMD_SET_PMKSA: | |
7838 | rdev_ops = rdev->ops->set_pmksa; | |
7839 | break; | |
7840 | case NL80211_CMD_DEL_PMKSA: | |
7841 | rdev_ops = rdev->ops->del_pmksa; | |
7842 | break; | |
7843 | default: | |
7844 | WARN_ON(1); | |
7845 | break; | |
7846 | } | |
7847 | ||
7848 | if (!rdev_ops) | |
7849 | return -EOPNOTSUPP; | |
7850 | ||
7851 | return rdev_ops(&rdev->wiphy, dev, &pmksa); | |
7852 | } | |
7853 | ||
7854 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
7855 | { | |
7856 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7857 | struct net_device *dev = info->user_ptr[1]; | |
7858 | ||
7859 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
7860 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7861 | return -EOPNOTSUPP; | |
7862 | ||
7863 | if (!rdev->ops->flush_pmksa) | |
7864 | return -EOPNOTSUPP; | |
7865 | ||
7866 | return rdev_flush_pmksa(rdev, dev); | |
7867 | } | |
7868 | ||
7869 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) | |
7870 | { | |
7871 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7872 | struct net_device *dev = info->user_ptr[1]; | |
7873 | u8 action_code, dialog_token; | |
7874 | u32 peer_capability = 0; | |
7875 | u16 status_code; | |
7876 | u8 *peer; | |
7877 | bool initiator; | |
7878 | ||
7879 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
7880 | !rdev->ops->tdls_mgmt) | |
7881 | return -EOPNOTSUPP; | |
7882 | ||
7883 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
7884 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
7885 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
7886 | !info->attrs[NL80211_ATTR_IE] || | |
7887 | !info->attrs[NL80211_ATTR_MAC]) | |
7888 | return -EINVAL; | |
7889 | ||
7890 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7891 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
7892 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
7893 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
7894 | initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]); | |
7895 | if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]) | |
7896 | peer_capability = | |
7897 | nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]); | |
7898 | ||
7899 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, | |
7900 | dialog_token, status_code, peer_capability, | |
7901 | initiator, | |
7902 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
7903 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
7904 | } | |
7905 | ||
7906 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
7907 | { | |
7908 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7909 | struct net_device *dev = info->user_ptr[1]; | |
7910 | enum nl80211_tdls_operation operation; | |
7911 | u8 *peer; | |
7912 | ||
7913 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
7914 | !rdev->ops->tdls_oper) | |
7915 | return -EOPNOTSUPP; | |
7916 | ||
7917 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
7918 | !info->attrs[NL80211_ATTR_MAC]) | |
7919 | return -EINVAL; | |
7920 | ||
7921 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
7922 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7923 | ||
7924 | return rdev_tdls_oper(rdev, dev, peer, operation); | |
7925 | } | |
7926 | ||
7927 | static int nl80211_remain_on_channel(struct sk_buff *skb, | |
7928 | struct genl_info *info) | |
7929 | { | |
7930 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7931 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7932 | struct cfg80211_chan_def chandef; | |
7933 | struct sk_buff *msg; | |
7934 | void *hdr; | |
7935 | u64 cookie; | |
7936 | u32 duration; | |
7937 | int err; | |
7938 | ||
7939 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
7940 | !info->attrs[NL80211_ATTR_DURATION]) | |
7941 | return -EINVAL; | |
7942 | ||
7943 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
7944 | ||
7945 | if (!rdev->ops->remain_on_channel || | |
7946 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
7947 | return -EOPNOTSUPP; | |
7948 | ||
7949 | /* | |
7950 | * We should be on that channel for at least a minimum amount of | |
7951 | * time (10ms) but no longer than the driver supports. | |
7952 | */ | |
7953 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
7954 | duration > rdev->wiphy.max_remain_on_channel_duration) | |
7955 | return -EINVAL; | |
7956 | ||
7957 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
7958 | if (err) | |
7959 | return err; | |
7960 | ||
7961 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7962 | if (!msg) | |
7963 | return -ENOMEM; | |
7964 | ||
7965 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
7966 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
7967 | if (!hdr) { | |
7968 | err = -ENOBUFS; | |
7969 | goto free_msg; | |
7970 | } | |
7971 | ||
7972 | err = rdev_remain_on_channel(rdev, wdev, chandef.chan, | |
7973 | duration, &cookie); | |
7974 | ||
7975 | if (err) | |
7976 | goto free_msg; | |
7977 | ||
7978 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
7979 | goto nla_put_failure; | |
7980 | ||
7981 | genlmsg_end(msg, hdr); | |
7982 | ||
7983 | return genlmsg_reply(msg, info); | |
7984 | ||
7985 | nla_put_failure: | |
7986 | err = -ENOBUFS; | |
7987 | free_msg: | |
7988 | nlmsg_free(msg); | |
7989 | return err; | |
7990 | } | |
7991 | ||
7992 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
7993 | struct genl_info *info) | |
7994 | { | |
7995 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7996 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7997 | u64 cookie; | |
7998 | ||
7999 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
8000 | return -EINVAL; | |
8001 | ||
8002 | if (!rdev->ops->cancel_remain_on_channel) | |
8003 | return -EOPNOTSUPP; | |
8004 | ||
8005 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
8006 | ||
8007 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); | |
8008 | } | |
8009 | ||
8010 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, | |
8011 | u8 *rates, u8 rates_len) | |
8012 | { | |
8013 | u8 i; | |
8014 | u32 mask = 0; | |
8015 | ||
8016 | for (i = 0; i < rates_len; i++) { | |
8017 | int rate = (rates[i] & 0x7f) * 5; | |
8018 | int ridx; | |
8019 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
8020 | struct ieee80211_rate *srate = | |
8021 | &sband->bitrates[ridx]; | |
8022 | if (rate == srate->bitrate) { | |
8023 | mask |= 1 << ridx; | |
8024 | break; | |
8025 | } | |
8026 | } | |
8027 | if (ridx == sband->n_bitrates) | |
8028 | return 0; /* rate not found */ | |
8029 | } | |
8030 | ||
8031 | return mask; | |
8032 | } | |
8033 | ||
8034 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, | |
8035 | u8 *rates, u8 rates_len, | |
8036 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
8037 | { | |
8038 | u8 i; | |
8039 | ||
8040 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
8041 | ||
8042 | for (i = 0; i < rates_len; i++) { | |
8043 | int ridx, rbit; | |
8044 | ||
8045 | ridx = rates[i] / 8; | |
8046 | rbit = BIT(rates[i] % 8); | |
8047 | ||
8048 | /* check validity */ | |
8049 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) | |
8050 | return false; | |
8051 | ||
8052 | /* check availability */ | |
8053 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
8054 | mcs[ridx] |= rbit; | |
8055 | else | |
8056 | return false; | |
8057 | } | |
8058 | ||
8059 | return true; | |
8060 | } | |
8061 | ||
8062 | static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map) | |
8063 | { | |
8064 | u16 mcs_mask = 0; | |
8065 | ||
8066 | switch (vht_mcs_map) { | |
8067 | case IEEE80211_VHT_MCS_NOT_SUPPORTED: | |
8068 | break; | |
8069 | case IEEE80211_VHT_MCS_SUPPORT_0_7: | |
8070 | mcs_mask = 0x00FF; | |
8071 | break; | |
8072 | case IEEE80211_VHT_MCS_SUPPORT_0_8: | |
8073 | mcs_mask = 0x01FF; | |
8074 | break; | |
8075 | case IEEE80211_VHT_MCS_SUPPORT_0_9: | |
8076 | mcs_mask = 0x03FF; | |
8077 | break; | |
8078 | default: | |
8079 | break; | |
8080 | } | |
8081 | ||
8082 | return mcs_mask; | |
8083 | } | |
8084 | ||
8085 | static void vht_build_mcs_mask(u16 vht_mcs_map, | |
8086 | u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) | |
8087 | { | |
8088 | u8 nss; | |
8089 | ||
8090 | for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) { | |
8091 | vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03); | |
8092 | vht_mcs_map >>= 2; | |
8093 | } | |
8094 | } | |
8095 | ||
8096 | static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband, | |
8097 | struct nl80211_txrate_vht *txrate, | |
8098 | u16 mcs[NL80211_VHT_NSS_MAX]) | |
8099 | { | |
8100 | u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
8101 | u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {}; | |
8102 | u8 i; | |
8103 | ||
8104 | if (!sband->vht_cap.vht_supported) | |
8105 | return false; | |
8106 | ||
8107 | memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX); | |
8108 | ||
8109 | /* Build vht_mcs_mask from VHT capabilities */ | |
8110 | vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask); | |
8111 | ||
8112 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { | |
8113 | if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i]) | |
8114 | mcs[i] = txrate->mcs[i]; | |
8115 | else | |
8116 | return false; | |
8117 | } | |
8118 | ||
8119 | return true; | |
8120 | } | |
8121 | ||
8122 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { | |
8123 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, | |
8124 | .len = NL80211_MAX_SUPP_RATES }, | |
8125 | [NL80211_TXRATE_HT] = { .type = NLA_BINARY, | |
8126 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
8127 | [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)}, | |
8128 | [NL80211_TXRATE_GI] = { .type = NLA_U8 }, | |
8129 | }; | |
8130 | ||
8131 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
8132 | struct genl_info *info) | |
8133 | { | |
8134 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
8135 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8136 | struct cfg80211_bitrate_mask mask; | |
8137 | int rem, i; | |
8138 | struct net_device *dev = info->user_ptr[1]; | |
8139 | struct nlattr *tx_rates; | |
8140 | struct ieee80211_supported_band *sband; | |
8141 | u16 vht_tx_mcs_map; | |
8142 | ||
8143 | if (!rdev->ops->set_bitrate_mask) | |
8144 | return -EOPNOTSUPP; | |
8145 | ||
8146 | memset(&mask, 0, sizeof(mask)); | |
8147 | /* Default to all rates enabled */ | |
8148 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
8149 | sband = rdev->wiphy.bands[i]; | |
8150 | ||
8151 | if (!sband) | |
8152 | continue; | |
8153 | ||
8154 | mask.control[i].legacy = (1 << sband->n_bitrates) - 1; | |
8155 | memcpy(mask.control[i].ht_mcs, | |
8156 | sband->ht_cap.mcs.rx_mask, | |
8157 | sizeof(mask.control[i].ht_mcs)); | |
8158 | ||
8159 | if (!sband->vht_cap.vht_supported) | |
8160 | continue; | |
8161 | ||
8162 | vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
8163 | vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs); | |
8164 | } | |
8165 | ||
8166 | /* if no rates are given set it back to the defaults */ | |
8167 | if (!info->attrs[NL80211_ATTR_TX_RATES]) | |
8168 | goto out; | |
8169 | ||
8170 | /* | |
8171 | * The nested attribute uses enum nl80211_band as the index. This maps | |
8172 | * directly to the enum ieee80211_band values used in cfg80211. | |
8173 | */ | |
8174 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); | |
8175 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { | |
8176 | enum ieee80211_band band = nla_type(tx_rates); | |
8177 | int err; | |
8178 | ||
8179 | if (band < 0 || band >= IEEE80211_NUM_BANDS) | |
8180 | return -EINVAL; | |
8181 | sband = rdev->wiphy.bands[band]; | |
8182 | if (sband == NULL) | |
8183 | return -EINVAL; | |
8184 | err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), | |
8185 | nla_len(tx_rates), nl80211_txattr_policy); | |
8186 | if (err) | |
8187 | return err; | |
8188 | if (tb[NL80211_TXRATE_LEGACY]) { | |
8189 | mask.control[band].legacy = rateset_to_mask( | |
8190 | sband, | |
8191 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
8192 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
8193 | if ((mask.control[band].legacy == 0) && | |
8194 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
8195 | return -EINVAL; | |
8196 | } | |
8197 | if (tb[NL80211_TXRATE_HT]) { | |
8198 | if (!ht_rateset_to_mask( | |
8199 | sband, | |
8200 | nla_data(tb[NL80211_TXRATE_HT]), | |
8201 | nla_len(tb[NL80211_TXRATE_HT]), | |
8202 | mask.control[band].ht_mcs)) | |
8203 | return -EINVAL; | |
8204 | } | |
8205 | if (tb[NL80211_TXRATE_VHT]) { | |
8206 | if (!vht_set_mcs_mask( | |
8207 | sband, | |
8208 | nla_data(tb[NL80211_TXRATE_VHT]), | |
8209 | mask.control[band].vht_mcs)) | |
8210 | return -EINVAL; | |
8211 | } | |
8212 | if (tb[NL80211_TXRATE_GI]) { | |
8213 | mask.control[band].gi = | |
8214 | nla_get_u8(tb[NL80211_TXRATE_GI]); | |
8215 | if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI) | |
8216 | return -EINVAL; | |
8217 | } | |
8218 | ||
8219 | if (mask.control[band].legacy == 0) { | |
8220 | /* don't allow empty legacy rates if HT or VHT | |
8221 | * are not even supported. | |
8222 | */ | |
8223 | if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported || | |
8224 | rdev->wiphy.bands[band]->vht_cap.vht_supported)) | |
8225 | return -EINVAL; | |
8226 | ||
8227 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
8228 | if (mask.control[band].ht_mcs[i]) | |
8229 | goto out; | |
8230 | ||
8231 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) | |
8232 | if (mask.control[band].vht_mcs[i]) | |
8233 | goto out; | |
8234 | ||
8235 | /* legacy and mcs rates may not be both empty */ | |
8236 | return -EINVAL; | |
8237 | } | |
8238 | } | |
8239 | ||
8240 | out: | |
8241 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); | |
8242 | } | |
8243 | ||
8244 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) | |
8245 | { | |
8246 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8247 | struct wireless_dev *wdev = info->user_ptr[1]; | |
8248 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; | |
8249 | ||
8250 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
8251 | return -EINVAL; | |
8252 | ||
8253 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) | |
8254 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
8255 | ||
8256 | switch (wdev->iftype) { | |
8257 | case NL80211_IFTYPE_STATION: | |
8258 | case NL80211_IFTYPE_ADHOC: | |
8259 | case NL80211_IFTYPE_P2P_CLIENT: | |
8260 | case NL80211_IFTYPE_AP: | |
8261 | case NL80211_IFTYPE_AP_VLAN: | |
8262 | case NL80211_IFTYPE_MESH_POINT: | |
8263 | case NL80211_IFTYPE_P2P_GO: | |
8264 | case NL80211_IFTYPE_P2P_DEVICE: | |
8265 | break; | |
8266 | default: | |
8267 | return -EOPNOTSUPP; | |
8268 | } | |
8269 | ||
8270 | /* not much point in registering if we can't reply */ | |
8271 | if (!rdev->ops->mgmt_tx) | |
8272 | return -EOPNOTSUPP; | |
8273 | ||
8274 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, | |
8275 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), | |
8276 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
8277 | } | |
8278 | ||
8279 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) | |
8280 | { | |
8281 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8282 | struct wireless_dev *wdev = info->user_ptr[1]; | |
8283 | struct cfg80211_chan_def chandef; | |
8284 | int err; | |
8285 | void *hdr = NULL; | |
8286 | u64 cookie; | |
8287 | struct sk_buff *msg = NULL; | |
8288 | struct cfg80211_mgmt_tx_params params = { | |
8289 | .dont_wait_for_ack = | |
8290 | info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK], | |
8291 | }; | |
8292 | ||
8293 | if (!info->attrs[NL80211_ATTR_FRAME]) | |
8294 | return -EINVAL; | |
8295 | ||
8296 | if (!rdev->ops->mgmt_tx) | |
8297 | return -EOPNOTSUPP; | |
8298 | ||
8299 | switch (wdev->iftype) { | |
8300 | case NL80211_IFTYPE_P2P_DEVICE: | |
8301 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
8302 | return -EINVAL; | |
8303 | case NL80211_IFTYPE_STATION: | |
8304 | case NL80211_IFTYPE_ADHOC: | |
8305 | case NL80211_IFTYPE_P2P_CLIENT: | |
8306 | case NL80211_IFTYPE_AP: | |
8307 | case NL80211_IFTYPE_AP_VLAN: | |
8308 | case NL80211_IFTYPE_MESH_POINT: | |
8309 | case NL80211_IFTYPE_P2P_GO: | |
8310 | break; | |
8311 | default: | |
8312 | return -EOPNOTSUPP; | |
8313 | } | |
8314 | ||
8315 | if (info->attrs[NL80211_ATTR_DURATION]) { | |
8316 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) | |
8317 | return -EINVAL; | |
8318 | params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
8319 | ||
8320 | /* | |
8321 | * We should wait on the channel for at least a minimum amount | |
8322 | * of time (10ms) but no longer than the driver supports. | |
8323 | */ | |
8324 | if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
8325 | params.wait > rdev->wiphy.max_remain_on_channel_duration) | |
8326 | return -EINVAL; | |
8327 | ||
8328 | } | |
8329 | ||
8330 | params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; | |
8331 | ||
8332 | if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) | |
8333 | return -EINVAL; | |
8334 | ||
8335 | params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
8336 | ||
8337 | /* get the channel if any has been specified, otherwise pass NULL to | |
8338 | * the driver. The latter will use the current one | |
8339 | */ | |
8340 | chandef.chan = NULL; | |
8341 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
8342 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
8343 | if (err) | |
8344 | return err; | |
8345 | } | |
8346 | ||
8347 | if (!chandef.chan && params.offchan) | |
8348 | return -EINVAL; | |
8349 | ||
8350 | params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); | |
8351 | params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); | |
8352 | ||
8353 | if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) { | |
8354 | int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); | |
8355 | int i; | |
8356 | ||
8357 | if (len % sizeof(u16)) | |
8358 | return -EINVAL; | |
8359 | ||
8360 | params.n_csa_offsets = len / sizeof(u16); | |
8361 | params.csa_offsets = | |
8362 | nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); | |
8363 | ||
8364 | /* check that all the offsets fit the frame */ | |
8365 | for (i = 0; i < params.n_csa_offsets; i++) { | |
8366 | if (params.csa_offsets[i] >= params.len) | |
8367 | return -EINVAL; | |
8368 | } | |
8369 | } | |
8370 | ||
8371 | if (!params.dont_wait_for_ack) { | |
8372 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8373 | if (!msg) | |
8374 | return -ENOMEM; | |
8375 | ||
8376 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
8377 | NL80211_CMD_FRAME); | |
8378 | if (!hdr) { | |
8379 | err = -ENOBUFS; | |
8380 | goto free_msg; | |
8381 | } | |
8382 | } | |
8383 | ||
8384 | params.chan = chandef.chan; | |
8385 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie); | |
8386 | if (err) | |
8387 | goto free_msg; | |
8388 | ||
8389 | if (msg) { | |
8390 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
8391 | goto nla_put_failure; | |
8392 | ||
8393 | genlmsg_end(msg, hdr); | |
8394 | return genlmsg_reply(msg, info); | |
8395 | } | |
8396 | ||
8397 | return 0; | |
8398 | ||
8399 | nla_put_failure: | |
8400 | err = -ENOBUFS; | |
8401 | free_msg: | |
8402 | nlmsg_free(msg); | |
8403 | return err; | |
8404 | } | |
8405 | ||
8406 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) | |
8407 | { | |
8408 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8409 | struct wireless_dev *wdev = info->user_ptr[1]; | |
8410 | u64 cookie; | |
8411 | ||
8412 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
8413 | return -EINVAL; | |
8414 | ||
8415 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
8416 | return -EOPNOTSUPP; | |
8417 | ||
8418 | switch (wdev->iftype) { | |
8419 | case NL80211_IFTYPE_STATION: | |
8420 | case NL80211_IFTYPE_ADHOC: | |
8421 | case NL80211_IFTYPE_P2P_CLIENT: | |
8422 | case NL80211_IFTYPE_AP: | |
8423 | case NL80211_IFTYPE_AP_VLAN: | |
8424 | case NL80211_IFTYPE_P2P_GO: | |
8425 | case NL80211_IFTYPE_P2P_DEVICE: | |
8426 | break; | |
8427 | default: | |
8428 | return -EOPNOTSUPP; | |
8429 | } | |
8430 | ||
8431 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
8432 | ||
8433 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); | |
8434 | } | |
8435 | ||
8436 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) | |
8437 | { | |
8438 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8439 | struct wireless_dev *wdev; | |
8440 | struct net_device *dev = info->user_ptr[1]; | |
8441 | u8 ps_state; | |
8442 | bool state; | |
8443 | int err; | |
8444 | ||
8445 | if (!info->attrs[NL80211_ATTR_PS_STATE]) | |
8446 | return -EINVAL; | |
8447 | ||
8448 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
8449 | ||
8450 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) | |
8451 | return -EINVAL; | |
8452 | ||
8453 | wdev = dev->ieee80211_ptr; | |
8454 | ||
8455 | if (!rdev->ops->set_power_mgmt) | |
8456 | return -EOPNOTSUPP; | |
8457 | ||
8458 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
8459 | ||
8460 | if (state == wdev->ps) | |
8461 | return 0; | |
8462 | ||
8463 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); | |
8464 | if (!err) | |
8465 | wdev->ps = state; | |
8466 | return err; | |
8467 | } | |
8468 | ||
8469 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
8470 | { | |
8471 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8472 | enum nl80211_ps_state ps_state; | |
8473 | struct wireless_dev *wdev; | |
8474 | struct net_device *dev = info->user_ptr[1]; | |
8475 | struct sk_buff *msg; | |
8476 | void *hdr; | |
8477 | int err; | |
8478 | ||
8479 | wdev = dev->ieee80211_ptr; | |
8480 | ||
8481 | if (!rdev->ops->set_power_mgmt) | |
8482 | return -EOPNOTSUPP; | |
8483 | ||
8484 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8485 | if (!msg) | |
8486 | return -ENOMEM; | |
8487 | ||
8488 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
8489 | NL80211_CMD_GET_POWER_SAVE); | |
8490 | if (!hdr) { | |
8491 | err = -ENOBUFS; | |
8492 | goto free_msg; | |
8493 | } | |
8494 | ||
8495 | if (wdev->ps) | |
8496 | ps_state = NL80211_PS_ENABLED; | |
8497 | else | |
8498 | ps_state = NL80211_PS_DISABLED; | |
8499 | ||
8500 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) | |
8501 | goto nla_put_failure; | |
8502 | ||
8503 | genlmsg_end(msg, hdr); | |
8504 | return genlmsg_reply(msg, info); | |
8505 | ||
8506 | nla_put_failure: | |
8507 | err = -ENOBUFS; | |
8508 | free_msg: | |
8509 | nlmsg_free(msg); | |
8510 | return err; | |
8511 | } | |
8512 | ||
8513 | static const struct nla_policy | |
8514 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { | |
8515 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
8516 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
8517 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
8518 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, | |
8519 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
8520 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
8521 | }; | |
8522 | ||
8523 | static int nl80211_set_cqm_txe(struct genl_info *info, | |
8524 | u32 rate, u32 pkts, u32 intvl) | |
8525 | { | |
8526 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8527 | struct net_device *dev = info->user_ptr[1]; | |
8528 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8529 | ||
8530 | if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL) | |
8531 | return -EINVAL; | |
8532 | ||
8533 | if (!rdev->ops->set_cqm_txe_config) | |
8534 | return -EOPNOTSUPP; | |
8535 | ||
8536 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
8537 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
8538 | return -EOPNOTSUPP; | |
8539 | ||
8540 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); | |
8541 | } | |
8542 | ||
8543 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
8544 | s32 threshold, u32 hysteresis) | |
8545 | { | |
8546 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8547 | struct net_device *dev = info->user_ptr[1]; | |
8548 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8549 | ||
8550 | if (threshold > 0) | |
8551 | return -EINVAL; | |
8552 | ||
8553 | /* disabling - hysteresis should also be zero then */ | |
8554 | if (threshold == 0) | |
8555 | hysteresis = 0; | |
8556 | ||
8557 | if (!rdev->ops->set_cqm_rssi_config) | |
8558 | return -EOPNOTSUPP; | |
8559 | ||
8560 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
8561 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
8562 | return -EOPNOTSUPP; | |
8563 | ||
8564 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); | |
8565 | } | |
8566 | ||
8567 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
8568 | { | |
8569 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
8570 | struct nlattr *cqm; | |
8571 | int err; | |
8572 | ||
8573 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
8574 | if (!cqm) | |
8575 | return -EINVAL; | |
8576 | ||
8577 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
8578 | nl80211_attr_cqm_policy); | |
8579 | if (err) | |
8580 | return err; | |
8581 | ||
8582 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
8583 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
8584 | s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
8585 | u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
8586 | ||
8587 | return nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
8588 | } | |
8589 | ||
8590 | if (attrs[NL80211_ATTR_CQM_TXE_RATE] && | |
8591 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
8592 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
8593 | u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
8594 | u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
8595 | u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
8596 | ||
8597 | return nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
8598 | } | |
8599 | ||
8600 | return -EINVAL; | |
8601 | } | |
8602 | ||
8603 | static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info) | |
8604 | { | |
8605 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8606 | struct net_device *dev = info->user_ptr[1]; | |
8607 | struct ocb_setup setup = {}; | |
8608 | int err; | |
8609 | ||
8610 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); | |
8611 | if (err) | |
8612 | return err; | |
8613 | ||
8614 | return cfg80211_join_ocb(rdev, dev, &setup); | |
8615 | } | |
8616 | ||
8617 | static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info) | |
8618 | { | |
8619 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8620 | struct net_device *dev = info->user_ptr[1]; | |
8621 | ||
8622 | return cfg80211_leave_ocb(rdev, dev); | |
8623 | } | |
8624 | ||
8625 | static int nl80211_join_mesh(struct sk_buff *skb, 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 mesh_config cfg; | |
8630 | struct mesh_setup setup; | |
8631 | int err; | |
8632 | ||
8633 | /* start with default */ | |
8634 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
8635 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); | |
8636 | ||
8637 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { | |
8638 | /* and parse parameters if given */ | |
8639 | err = nl80211_parse_mesh_config(info, &cfg, NULL); | |
8640 | if (err) | |
8641 | return err; | |
8642 | } | |
8643 | ||
8644 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
8645 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
8646 | return -EINVAL; | |
8647 | ||
8648 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
8649 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
8650 | ||
8651 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
8652 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
8653 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
8654 | return -EINVAL; | |
8655 | ||
8656 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
8657 | setup.beacon_interval = | |
8658 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
8659 | if (setup.beacon_interval < 10 || | |
8660 | setup.beacon_interval > 10000) | |
8661 | return -EINVAL; | |
8662 | } | |
8663 | ||
8664 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
8665 | setup.dtim_period = | |
8666 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
8667 | if (setup.dtim_period < 1 || setup.dtim_period > 100) | |
8668 | return -EINVAL; | |
8669 | } | |
8670 | ||
8671 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { | |
8672 | /* parse additional setup parameters if given */ | |
8673 | err = nl80211_parse_mesh_setup(info, &setup); | |
8674 | if (err) | |
8675 | return err; | |
8676 | } | |
8677 | ||
8678 | if (setup.user_mpm) | |
8679 | cfg.auto_open_plinks = false; | |
8680 | ||
8681 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
8682 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); | |
8683 | if (err) | |
8684 | return err; | |
8685 | } else { | |
8686 | /* cfg80211_join_mesh() will sort it out */ | |
8687 | setup.chandef.chan = NULL; | |
8688 | } | |
8689 | ||
8690 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { | |
8691 | u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8692 | int n_rates = | |
8693 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8694 | struct ieee80211_supported_band *sband; | |
8695 | ||
8696 | if (!setup.chandef.chan) | |
8697 | return -EINVAL; | |
8698 | ||
8699 | sband = rdev->wiphy.bands[setup.chandef.chan->band]; | |
8700 | ||
8701 | err = ieee80211_get_ratemask(sband, rates, n_rates, | |
8702 | &setup.basic_rates); | |
8703 | if (err) | |
8704 | return err; | |
8705 | } | |
8706 | ||
8707 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); | |
8708 | } | |
8709 | ||
8710 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
8711 | { | |
8712 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8713 | struct net_device *dev = info->user_ptr[1]; | |
8714 | ||
8715 | return cfg80211_leave_mesh(rdev, dev); | |
8716 | } | |
8717 | ||
8718 | #ifdef CONFIG_PM | |
8719 | static int nl80211_send_wowlan_patterns(struct sk_buff *msg, | |
8720 | struct cfg80211_registered_device *rdev) | |
8721 | { | |
8722 | struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config; | |
8723 | struct nlattr *nl_pats, *nl_pat; | |
8724 | int i, pat_len; | |
8725 | ||
8726 | if (!wowlan->n_patterns) | |
8727 | return 0; | |
8728 | ||
8729 | nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
8730 | if (!nl_pats) | |
8731 | return -ENOBUFS; | |
8732 | ||
8733 | for (i = 0; i < wowlan->n_patterns; i++) { | |
8734 | nl_pat = nla_nest_start(msg, i + 1); | |
8735 | if (!nl_pat) | |
8736 | return -ENOBUFS; | |
8737 | pat_len = wowlan->patterns[i].pattern_len; | |
8738 | if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8), | |
8739 | wowlan->patterns[i].mask) || | |
8740 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, | |
8741 | wowlan->patterns[i].pattern) || | |
8742 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
8743 | wowlan->patterns[i].pkt_offset)) | |
8744 | return -ENOBUFS; | |
8745 | nla_nest_end(msg, nl_pat); | |
8746 | } | |
8747 | nla_nest_end(msg, nl_pats); | |
8748 | ||
8749 | return 0; | |
8750 | } | |
8751 | ||
8752 | static int nl80211_send_wowlan_tcp(struct sk_buff *msg, | |
8753 | struct cfg80211_wowlan_tcp *tcp) | |
8754 | { | |
8755 | struct nlattr *nl_tcp; | |
8756 | ||
8757 | if (!tcp) | |
8758 | return 0; | |
8759 | ||
8760 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
8761 | if (!nl_tcp) | |
8762 | return -ENOBUFS; | |
8763 | ||
8764 | if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || | |
8765 | nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || | |
8766 | nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || | |
8767 | nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || | |
8768 | nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || | |
8769 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
8770 | tcp->payload_len, tcp->payload) || | |
8771 | nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
8772 | tcp->data_interval) || | |
8773 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
8774 | tcp->wake_len, tcp->wake_data) || | |
8775 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, | |
8776 | DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) | |
8777 | return -ENOBUFS; | |
8778 | ||
8779 | if (tcp->payload_seq.len && | |
8780 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, | |
8781 | sizeof(tcp->payload_seq), &tcp->payload_seq)) | |
8782 | return -ENOBUFS; | |
8783 | ||
8784 | if (tcp->payload_tok.len && | |
8785 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
8786 | sizeof(tcp->payload_tok) + tcp->tokens_size, | |
8787 | &tcp->payload_tok)) | |
8788 | return -ENOBUFS; | |
8789 | ||
8790 | nla_nest_end(msg, nl_tcp); | |
8791 | ||
8792 | return 0; | |
8793 | } | |
8794 | ||
8795 | static int nl80211_send_wowlan_nd(struct sk_buff *msg, | |
8796 | struct cfg80211_sched_scan_request *req) | |
8797 | { | |
8798 | struct nlattr *nd, *freqs, *matches, *match; | |
8799 | int i; | |
8800 | ||
8801 | if (!req) | |
8802 | return 0; | |
8803 | ||
8804 | nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT); | |
8805 | if (!nd) | |
8806 | return -ENOBUFS; | |
8807 | ||
8808 | if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval)) | |
8809 | return -ENOBUFS; | |
8810 | ||
8811 | freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
8812 | if (!freqs) | |
8813 | return -ENOBUFS; | |
8814 | ||
8815 | for (i = 0; i < req->n_channels; i++) | |
8816 | nla_put_u32(msg, i, req->channels[i]->center_freq); | |
8817 | ||
8818 | nla_nest_end(msg, freqs); | |
8819 | ||
8820 | if (req->n_match_sets) { | |
8821 | matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); | |
8822 | for (i = 0; i < req->n_match_sets; i++) { | |
8823 | match = nla_nest_start(msg, i); | |
8824 | nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID, | |
8825 | req->match_sets[i].ssid.ssid_len, | |
8826 | req->match_sets[i].ssid.ssid); | |
8827 | nla_nest_end(msg, match); | |
8828 | } | |
8829 | nla_nest_end(msg, matches); | |
8830 | } | |
8831 | ||
8832 | nla_nest_end(msg, nd); | |
8833 | ||
8834 | return 0; | |
8835 | } | |
8836 | ||
8837 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) | |
8838 | { | |
8839 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8840 | struct sk_buff *msg; | |
8841 | void *hdr; | |
8842 | u32 size = NLMSG_DEFAULT_SIZE; | |
8843 | ||
8844 | if (!rdev->wiphy.wowlan) | |
8845 | return -EOPNOTSUPP; | |
8846 | ||
8847 | if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) { | |
8848 | /* adjust size to have room for all the data */ | |
8849 | size += rdev->wiphy.wowlan_config->tcp->tokens_size + | |
8850 | rdev->wiphy.wowlan_config->tcp->payload_len + | |
8851 | rdev->wiphy.wowlan_config->tcp->wake_len + | |
8852 | rdev->wiphy.wowlan_config->tcp->wake_len / 8; | |
8853 | } | |
8854 | ||
8855 | msg = nlmsg_new(size, GFP_KERNEL); | |
8856 | if (!msg) | |
8857 | return -ENOMEM; | |
8858 | ||
8859 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
8860 | NL80211_CMD_GET_WOWLAN); | |
8861 | if (!hdr) | |
8862 | goto nla_put_failure; | |
8863 | ||
8864 | if (rdev->wiphy.wowlan_config) { | |
8865 | struct nlattr *nl_wowlan; | |
8866 | ||
8867 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
8868 | if (!nl_wowlan) | |
8869 | goto nla_put_failure; | |
8870 | ||
8871 | if ((rdev->wiphy.wowlan_config->any && | |
8872 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
8873 | (rdev->wiphy.wowlan_config->disconnect && | |
8874 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
8875 | (rdev->wiphy.wowlan_config->magic_pkt && | |
8876 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
8877 | (rdev->wiphy.wowlan_config->gtk_rekey_failure && | |
8878 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
8879 | (rdev->wiphy.wowlan_config->eap_identity_req && | |
8880 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
8881 | (rdev->wiphy.wowlan_config->four_way_handshake && | |
8882 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
8883 | (rdev->wiphy.wowlan_config->rfkill_release && | |
8884 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
8885 | goto nla_put_failure; | |
8886 | ||
8887 | if (nl80211_send_wowlan_patterns(msg, rdev)) | |
8888 | goto nla_put_failure; | |
8889 | ||
8890 | if (nl80211_send_wowlan_tcp(msg, | |
8891 | rdev->wiphy.wowlan_config->tcp)) | |
8892 | goto nla_put_failure; | |
8893 | ||
8894 | if (nl80211_send_wowlan_nd( | |
8895 | msg, | |
8896 | rdev->wiphy.wowlan_config->nd_config)) | |
8897 | goto nla_put_failure; | |
8898 | ||
8899 | nla_nest_end(msg, nl_wowlan); | |
8900 | } | |
8901 | ||
8902 | genlmsg_end(msg, hdr); | |
8903 | return genlmsg_reply(msg, info); | |
8904 | ||
8905 | nla_put_failure: | |
8906 | nlmsg_free(msg); | |
8907 | return -ENOBUFS; | |
8908 | } | |
8909 | ||
8910 | static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, | |
8911 | struct nlattr *attr, | |
8912 | struct cfg80211_wowlan *trig) | |
8913 | { | |
8914 | struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; | |
8915 | struct cfg80211_wowlan_tcp *cfg; | |
8916 | struct nl80211_wowlan_tcp_data_token *tok = NULL; | |
8917 | struct nl80211_wowlan_tcp_data_seq *seq = NULL; | |
8918 | u32 size; | |
8919 | u32 data_size, wake_size, tokens_size = 0, wake_mask_size; | |
8920 | int err, port; | |
8921 | ||
8922 | if (!rdev->wiphy.wowlan->tcp) | |
8923 | return -EINVAL; | |
8924 | ||
8925 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, | |
8926 | nla_data(attr), nla_len(attr), | |
8927 | nl80211_wowlan_tcp_policy); | |
8928 | if (err) | |
8929 | return err; | |
8930 | ||
8931 | if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || | |
8932 | !tb[NL80211_WOWLAN_TCP_DST_IPV4] || | |
8933 | !tb[NL80211_WOWLAN_TCP_DST_MAC] || | |
8934 | !tb[NL80211_WOWLAN_TCP_DST_PORT] || | |
8935 | !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || | |
8936 | !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || | |
8937 | !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || | |
8938 | !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) | |
8939 | return -EINVAL; | |
8940 | ||
8941 | data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); | |
8942 | if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max) | |
8943 | return -EINVAL; | |
8944 | ||
8945 | if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > | |
8946 | rdev->wiphy.wowlan->tcp->data_interval_max || | |
8947 | nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0) | |
8948 | return -EINVAL; | |
8949 | ||
8950 | wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); | |
8951 | if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max) | |
8952 | return -EINVAL; | |
8953 | ||
8954 | wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); | |
8955 | if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) | |
8956 | return -EINVAL; | |
8957 | ||
8958 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { | |
8959 | u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
8960 | ||
8961 | tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
8962 | tokens_size = tokln - sizeof(*tok); | |
8963 | ||
8964 | if (!tok->len || tokens_size % tok->len) | |
8965 | return -EINVAL; | |
8966 | if (!rdev->wiphy.wowlan->tcp->tok) | |
8967 | return -EINVAL; | |
8968 | if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len) | |
8969 | return -EINVAL; | |
8970 | if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len) | |
8971 | return -EINVAL; | |
8972 | if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize) | |
8973 | return -EINVAL; | |
8974 | if (tok->offset + tok->len > data_size) | |
8975 | return -EINVAL; | |
8976 | } | |
8977 | ||
8978 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { | |
8979 | seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); | |
8980 | if (!rdev->wiphy.wowlan->tcp->seq) | |
8981 | return -EINVAL; | |
8982 | if (seq->len == 0 || seq->len > 4) | |
8983 | return -EINVAL; | |
8984 | if (seq->len + seq->offset > data_size) | |
8985 | return -EINVAL; | |
8986 | } | |
8987 | ||
8988 | size = sizeof(*cfg); | |
8989 | size += data_size; | |
8990 | size += wake_size + wake_mask_size; | |
8991 | size += tokens_size; | |
8992 | ||
8993 | cfg = kzalloc(size, GFP_KERNEL); | |
8994 | if (!cfg) | |
8995 | return -ENOMEM; | |
8996 | cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); | |
8997 | cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]); | |
8998 | memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), | |
8999 | ETH_ALEN); | |
9000 | if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) | |
9001 | port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); | |
9002 | else | |
9003 | port = 0; | |
9004 | #ifdef CONFIG_INET | |
9005 | /* allocate a socket and port for it and use it */ | |
9006 | err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, | |
9007 | IPPROTO_TCP, &cfg->sock, 1); | |
9008 | if (err) { | |
9009 | kfree(cfg); | |
9010 | return err; | |
9011 | } | |
9012 | if (inet_csk_get_port(cfg->sock->sk, port)) { | |
9013 | sock_release(cfg->sock); | |
9014 | kfree(cfg); | |
9015 | return -EADDRINUSE; | |
9016 | } | |
9017 | cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; | |
9018 | #else | |
9019 | if (!port) { | |
9020 | kfree(cfg); | |
9021 | return -EINVAL; | |
9022 | } | |
9023 | cfg->src_port = port; | |
9024 | #endif | |
9025 | ||
9026 | cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); | |
9027 | cfg->payload_len = data_size; | |
9028 | cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; | |
9029 | memcpy((void *)cfg->payload, | |
9030 | nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), | |
9031 | data_size); | |
9032 | if (seq) | |
9033 | cfg->payload_seq = *seq; | |
9034 | cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); | |
9035 | cfg->wake_len = wake_size; | |
9036 | cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; | |
9037 | memcpy((void *)cfg->wake_data, | |
9038 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), | |
9039 | wake_size); | |
9040 | cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + | |
9041 | data_size + wake_size; | |
9042 | memcpy((void *)cfg->wake_mask, | |
9043 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), | |
9044 | wake_mask_size); | |
9045 | if (tok) { | |
9046 | cfg->tokens_size = tokens_size; | |
9047 | memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size); | |
9048 | } | |
9049 | ||
9050 | trig->tcp = cfg; | |
9051 | ||
9052 | return 0; | |
9053 | } | |
9054 | ||
9055 | static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev, | |
9056 | const struct wiphy_wowlan_support *wowlan, | |
9057 | struct nlattr *attr, | |
9058 | struct cfg80211_wowlan *trig) | |
9059 | { | |
9060 | struct nlattr **tb; | |
9061 | int err; | |
9062 | ||
9063 | tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL); | |
9064 | if (!tb) | |
9065 | return -ENOMEM; | |
9066 | ||
9067 | if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) { | |
9068 | err = -EOPNOTSUPP; | |
9069 | goto out; | |
9070 | } | |
9071 | ||
9072 | err = nla_parse(tb, NL80211_ATTR_MAX, | |
9073 | nla_data(attr), nla_len(attr), | |
9074 | nl80211_policy); | |
9075 | if (err) | |
9076 | goto out; | |
9077 | ||
9078 | trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb); | |
9079 | err = PTR_ERR_OR_ZERO(trig->nd_config); | |
9080 | if (err) | |
9081 | trig->nd_config = NULL; | |
9082 | ||
9083 | out: | |
9084 | kfree(tb); | |
9085 | return err; | |
9086 | } | |
9087 | ||
9088 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) | |
9089 | { | |
9090 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9091 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
9092 | struct cfg80211_wowlan new_triggers = {}; | |
9093 | struct cfg80211_wowlan *ntrig; | |
9094 | const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan; | |
9095 | int err, i; | |
9096 | bool prev_enabled = rdev->wiphy.wowlan_config; | |
9097 | ||
9098 | if (!wowlan) | |
9099 | return -EOPNOTSUPP; | |
9100 | ||
9101 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { | |
9102 | cfg80211_rdev_free_wowlan(rdev); | |
9103 | rdev->wiphy.wowlan_config = NULL; | |
9104 | goto set_wakeup; | |
9105 | } | |
9106 | ||
9107 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
9108 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
9109 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
9110 | nl80211_wowlan_policy); | |
9111 | if (err) | |
9112 | return err; | |
9113 | ||
9114 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
9115 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
9116 | return -EINVAL; | |
9117 | new_triggers.any = true; | |
9118 | } | |
9119 | ||
9120 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
9121 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
9122 | return -EINVAL; | |
9123 | new_triggers.disconnect = true; | |
9124 | } | |
9125 | ||
9126 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
9127 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
9128 | return -EINVAL; | |
9129 | new_triggers.magic_pkt = true; | |
9130 | } | |
9131 | ||
9132 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) | |
9133 | return -EINVAL; | |
9134 | ||
9135 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
9136 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
9137 | return -EINVAL; | |
9138 | new_triggers.gtk_rekey_failure = true; | |
9139 | } | |
9140 | ||
9141 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
9142 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
9143 | return -EINVAL; | |
9144 | new_triggers.eap_identity_req = true; | |
9145 | } | |
9146 | ||
9147 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
9148 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
9149 | return -EINVAL; | |
9150 | new_triggers.four_way_handshake = true; | |
9151 | } | |
9152 | ||
9153 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
9154 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
9155 | return -EINVAL; | |
9156 | new_triggers.rfkill_release = true; | |
9157 | } | |
9158 | ||
9159 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { | |
9160 | struct nlattr *pat; | |
9161 | int n_patterns = 0; | |
9162 | int rem, pat_len, mask_len, pkt_offset; | |
9163 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; | |
9164 | ||
9165 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
9166 | rem) | |
9167 | n_patterns++; | |
9168 | if (n_patterns > wowlan->n_patterns) | |
9169 | return -EINVAL; | |
9170 | ||
9171 | new_triggers.patterns = kcalloc(n_patterns, | |
9172 | sizeof(new_triggers.patterns[0]), | |
9173 | GFP_KERNEL); | |
9174 | if (!new_triggers.patterns) | |
9175 | return -ENOMEM; | |
9176 | ||
9177 | new_triggers.n_patterns = n_patterns; | |
9178 | i = 0; | |
9179 | ||
9180 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
9181 | rem) { | |
9182 | u8 *mask_pat; | |
9183 | ||
9184 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), | |
9185 | nla_len(pat), NULL); | |
9186 | err = -EINVAL; | |
9187 | if (!pat_tb[NL80211_PKTPAT_MASK] || | |
9188 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
9189 | goto error; | |
9190 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); | |
9191 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
9192 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) | |
9193 | goto error; | |
9194 | if (pat_len > wowlan->pattern_max_len || | |
9195 | pat_len < wowlan->pattern_min_len) | |
9196 | goto error; | |
9197 | ||
9198 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) | |
9199 | pkt_offset = 0; | |
9200 | else | |
9201 | pkt_offset = nla_get_u32( | |
9202 | pat_tb[NL80211_PKTPAT_OFFSET]); | |
9203 | if (pkt_offset > wowlan->max_pkt_offset) | |
9204 | goto error; | |
9205 | new_triggers.patterns[i].pkt_offset = pkt_offset; | |
9206 | ||
9207 | mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); | |
9208 | if (!mask_pat) { | |
9209 | err = -ENOMEM; | |
9210 | goto error; | |
9211 | } | |
9212 | new_triggers.patterns[i].mask = mask_pat; | |
9213 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), | |
9214 | mask_len); | |
9215 | mask_pat += mask_len; | |
9216 | new_triggers.patterns[i].pattern = mask_pat; | |
9217 | new_triggers.patterns[i].pattern_len = pat_len; | |
9218 | memcpy(mask_pat, | |
9219 | nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), | |
9220 | pat_len); | |
9221 | i++; | |
9222 | } | |
9223 | } | |
9224 | ||
9225 | if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { | |
9226 | err = nl80211_parse_wowlan_tcp( | |
9227 | rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], | |
9228 | &new_triggers); | |
9229 | if (err) | |
9230 | goto error; | |
9231 | } | |
9232 | ||
9233 | if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) { | |
9234 | err = nl80211_parse_wowlan_nd( | |
9235 | rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT], | |
9236 | &new_triggers); | |
9237 | if (err) | |
9238 | goto error; | |
9239 | } | |
9240 | ||
9241 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); | |
9242 | if (!ntrig) { | |
9243 | err = -ENOMEM; | |
9244 | goto error; | |
9245 | } | |
9246 | cfg80211_rdev_free_wowlan(rdev); | |
9247 | rdev->wiphy.wowlan_config = ntrig; | |
9248 | ||
9249 | set_wakeup: | |
9250 | if (rdev->ops->set_wakeup && | |
9251 | prev_enabled != !!rdev->wiphy.wowlan_config) | |
9252 | rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config); | |
9253 | ||
9254 | return 0; | |
9255 | error: | |
9256 | for (i = 0; i < new_triggers.n_patterns; i++) | |
9257 | kfree(new_triggers.patterns[i].mask); | |
9258 | kfree(new_triggers.patterns); | |
9259 | if (new_triggers.tcp && new_triggers.tcp->sock) | |
9260 | sock_release(new_triggers.tcp->sock); | |
9261 | kfree(new_triggers.tcp); | |
9262 | return err; | |
9263 | } | |
9264 | #endif | |
9265 | ||
9266 | static int nl80211_send_coalesce_rules(struct sk_buff *msg, | |
9267 | struct cfg80211_registered_device *rdev) | |
9268 | { | |
9269 | struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules; | |
9270 | int i, j, pat_len; | |
9271 | struct cfg80211_coalesce_rules *rule; | |
9272 | ||
9273 | if (!rdev->coalesce->n_rules) | |
9274 | return 0; | |
9275 | ||
9276 | nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE); | |
9277 | if (!nl_rules) | |
9278 | return -ENOBUFS; | |
9279 | ||
9280 | for (i = 0; i < rdev->coalesce->n_rules; i++) { | |
9281 | nl_rule = nla_nest_start(msg, i + 1); | |
9282 | if (!nl_rule) | |
9283 | return -ENOBUFS; | |
9284 | ||
9285 | rule = &rdev->coalesce->rules[i]; | |
9286 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY, | |
9287 | rule->delay)) | |
9288 | return -ENOBUFS; | |
9289 | ||
9290 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION, | |
9291 | rule->condition)) | |
9292 | return -ENOBUFS; | |
9293 | ||
9294 | nl_pats = nla_nest_start(msg, | |
9295 | NL80211_ATTR_COALESCE_RULE_PKT_PATTERN); | |
9296 | if (!nl_pats) | |
9297 | return -ENOBUFS; | |
9298 | ||
9299 | for (j = 0; j < rule->n_patterns; j++) { | |
9300 | nl_pat = nla_nest_start(msg, j + 1); | |
9301 | if (!nl_pat) | |
9302 | return -ENOBUFS; | |
9303 | pat_len = rule->patterns[j].pattern_len; | |
9304 | if (nla_put(msg, NL80211_PKTPAT_MASK, | |
9305 | DIV_ROUND_UP(pat_len, 8), | |
9306 | rule->patterns[j].mask) || | |
9307 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, | |
9308 | rule->patterns[j].pattern) || | |
9309 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
9310 | rule->patterns[j].pkt_offset)) | |
9311 | return -ENOBUFS; | |
9312 | nla_nest_end(msg, nl_pat); | |
9313 | } | |
9314 | nla_nest_end(msg, nl_pats); | |
9315 | nla_nest_end(msg, nl_rule); | |
9316 | } | |
9317 | nla_nest_end(msg, nl_rules); | |
9318 | ||
9319 | return 0; | |
9320 | } | |
9321 | ||
9322 | static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info) | |
9323 | { | |
9324 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9325 | struct sk_buff *msg; | |
9326 | void *hdr; | |
9327 | ||
9328 | if (!rdev->wiphy.coalesce) | |
9329 | return -EOPNOTSUPP; | |
9330 | ||
9331 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9332 | if (!msg) | |
9333 | return -ENOMEM; | |
9334 | ||
9335 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
9336 | NL80211_CMD_GET_COALESCE); | |
9337 | if (!hdr) | |
9338 | goto nla_put_failure; | |
9339 | ||
9340 | if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev)) | |
9341 | goto nla_put_failure; | |
9342 | ||
9343 | genlmsg_end(msg, hdr); | |
9344 | return genlmsg_reply(msg, info); | |
9345 | ||
9346 | nla_put_failure: | |
9347 | nlmsg_free(msg); | |
9348 | return -ENOBUFS; | |
9349 | } | |
9350 | ||
9351 | void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev) | |
9352 | { | |
9353 | struct cfg80211_coalesce *coalesce = rdev->coalesce; | |
9354 | int i, j; | |
9355 | struct cfg80211_coalesce_rules *rule; | |
9356 | ||
9357 | if (!coalesce) | |
9358 | return; | |
9359 | ||
9360 | for (i = 0; i < coalesce->n_rules; i++) { | |
9361 | rule = &coalesce->rules[i]; | |
9362 | for (j = 0; j < rule->n_patterns; j++) | |
9363 | kfree(rule->patterns[j].mask); | |
9364 | kfree(rule->patterns); | |
9365 | } | |
9366 | kfree(coalesce->rules); | |
9367 | kfree(coalesce); | |
9368 | rdev->coalesce = NULL; | |
9369 | } | |
9370 | ||
9371 | static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, | |
9372 | struct nlattr *rule, | |
9373 | struct cfg80211_coalesce_rules *new_rule) | |
9374 | { | |
9375 | int err, i; | |
9376 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
9377 | struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat; | |
9378 | int rem, pat_len, mask_len, pkt_offset, n_patterns = 0; | |
9379 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; | |
9380 | ||
9381 | err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule), | |
9382 | nla_len(rule), nl80211_coalesce_policy); | |
9383 | if (err) | |
9384 | return err; | |
9385 | ||
9386 | if (tb[NL80211_ATTR_COALESCE_RULE_DELAY]) | |
9387 | new_rule->delay = | |
9388 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]); | |
9389 | if (new_rule->delay > coalesce->max_delay) | |
9390 | return -EINVAL; | |
9391 | ||
9392 | if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION]) | |
9393 | new_rule->condition = | |
9394 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]); | |
9395 | if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH && | |
9396 | new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH) | |
9397 | return -EINVAL; | |
9398 | ||
9399 | if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN]) | |
9400 | return -EINVAL; | |
9401 | ||
9402 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
9403 | rem) | |
9404 | n_patterns++; | |
9405 | if (n_patterns > coalesce->n_patterns) | |
9406 | return -EINVAL; | |
9407 | ||
9408 | new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]), | |
9409 | GFP_KERNEL); | |
9410 | if (!new_rule->patterns) | |
9411 | return -ENOMEM; | |
9412 | ||
9413 | new_rule->n_patterns = n_patterns; | |
9414 | i = 0; | |
9415 | ||
9416 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
9417 | rem) { | |
9418 | u8 *mask_pat; | |
9419 | ||
9420 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), | |
9421 | nla_len(pat), NULL); | |
9422 | if (!pat_tb[NL80211_PKTPAT_MASK] || | |
9423 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
9424 | return -EINVAL; | |
9425 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); | |
9426 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
9427 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) | |
9428 | return -EINVAL; | |
9429 | if (pat_len > coalesce->pattern_max_len || | |
9430 | pat_len < coalesce->pattern_min_len) | |
9431 | return -EINVAL; | |
9432 | ||
9433 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) | |
9434 | pkt_offset = 0; | |
9435 | else | |
9436 | pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]); | |
9437 | if (pkt_offset > coalesce->max_pkt_offset) | |
9438 | return -EINVAL; | |
9439 | new_rule->patterns[i].pkt_offset = pkt_offset; | |
9440 | ||
9441 | mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); | |
9442 | if (!mask_pat) | |
9443 | return -ENOMEM; | |
9444 | ||
9445 | new_rule->patterns[i].mask = mask_pat; | |
9446 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), | |
9447 | mask_len); | |
9448 | ||
9449 | mask_pat += mask_len; | |
9450 | new_rule->patterns[i].pattern = mask_pat; | |
9451 | new_rule->patterns[i].pattern_len = pat_len; | |
9452 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), | |
9453 | pat_len); | |
9454 | i++; | |
9455 | } | |
9456 | ||
9457 | return 0; | |
9458 | } | |
9459 | ||
9460 | static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) | |
9461 | { | |
9462 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9463 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
9464 | struct cfg80211_coalesce new_coalesce = {}; | |
9465 | struct cfg80211_coalesce *n_coalesce; | |
9466 | int err, rem_rule, n_rules = 0, i, j; | |
9467 | struct nlattr *rule; | |
9468 | struct cfg80211_coalesce_rules *tmp_rule; | |
9469 | ||
9470 | if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce) | |
9471 | return -EOPNOTSUPP; | |
9472 | ||
9473 | if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) { | |
9474 | cfg80211_rdev_free_coalesce(rdev); | |
9475 | rdev->ops->set_coalesce(&rdev->wiphy, NULL); | |
9476 | return 0; | |
9477 | } | |
9478 | ||
9479 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
9480 | rem_rule) | |
9481 | n_rules++; | |
9482 | if (n_rules > coalesce->n_rules) | |
9483 | return -EINVAL; | |
9484 | ||
9485 | new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]), | |
9486 | GFP_KERNEL); | |
9487 | if (!new_coalesce.rules) | |
9488 | return -ENOMEM; | |
9489 | ||
9490 | new_coalesce.n_rules = n_rules; | |
9491 | i = 0; | |
9492 | ||
9493 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
9494 | rem_rule) { | |
9495 | err = nl80211_parse_coalesce_rule(rdev, rule, | |
9496 | &new_coalesce.rules[i]); | |
9497 | if (err) | |
9498 | goto error; | |
9499 | ||
9500 | i++; | |
9501 | } | |
9502 | ||
9503 | err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce); | |
9504 | if (err) | |
9505 | goto error; | |
9506 | ||
9507 | n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL); | |
9508 | if (!n_coalesce) { | |
9509 | err = -ENOMEM; | |
9510 | goto error; | |
9511 | } | |
9512 | cfg80211_rdev_free_coalesce(rdev); | |
9513 | rdev->coalesce = n_coalesce; | |
9514 | ||
9515 | return 0; | |
9516 | error: | |
9517 | for (i = 0; i < new_coalesce.n_rules; i++) { | |
9518 | tmp_rule = &new_coalesce.rules[i]; | |
9519 | for (j = 0; j < tmp_rule->n_patterns; j++) | |
9520 | kfree(tmp_rule->patterns[j].mask); | |
9521 | kfree(tmp_rule->patterns); | |
9522 | } | |
9523 | kfree(new_coalesce.rules); | |
9524 | ||
9525 | return err; | |
9526 | } | |
9527 | ||
9528 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) | |
9529 | { | |
9530 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9531 | struct net_device *dev = info->user_ptr[1]; | |
9532 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9533 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
9534 | struct cfg80211_gtk_rekey_data rekey_data; | |
9535 | int err; | |
9536 | ||
9537 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
9538 | return -EINVAL; | |
9539 | ||
9540 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
9541 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
9542 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
9543 | nl80211_rekey_policy); | |
9544 | if (err) | |
9545 | return err; | |
9546 | ||
9547 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
9548 | return -ERANGE; | |
9549 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
9550 | return -ERANGE; | |
9551 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
9552 | return -ERANGE; | |
9553 | ||
9554 | rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]); | |
9555 | rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]); | |
9556 | rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]); | |
9557 | ||
9558 | wdev_lock(wdev); | |
9559 | if (!wdev->current_bss) { | |
9560 | err = -ENOTCONN; | |
9561 | goto out; | |
9562 | } | |
9563 | ||
9564 | if (!rdev->ops->set_rekey_data) { | |
9565 | err = -EOPNOTSUPP; | |
9566 | goto out; | |
9567 | } | |
9568 | ||
9569 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); | |
9570 | out: | |
9571 | wdev_unlock(wdev); | |
9572 | return err; | |
9573 | } | |
9574 | ||
9575 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, | |
9576 | struct genl_info *info) | |
9577 | { | |
9578 | struct net_device *dev = info->user_ptr[1]; | |
9579 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9580 | ||
9581 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
9582 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
9583 | return -EINVAL; | |
9584 | ||
9585 | if (wdev->ap_unexpected_nlportid) | |
9586 | return -EBUSY; | |
9587 | ||
9588 | wdev->ap_unexpected_nlportid = info->snd_portid; | |
9589 | return 0; | |
9590 | } | |
9591 | ||
9592 | static int nl80211_probe_client(struct sk_buff *skb, | |
9593 | struct genl_info *info) | |
9594 | { | |
9595 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9596 | struct net_device *dev = info->user_ptr[1]; | |
9597 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9598 | struct sk_buff *msg; | |
9599 | void *hdr; | |
9600 | const u8 *addr; | |
9601 | u64 cookie; | |
9602 | int err; | |
9603 | ||
9604 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
9605 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
9606 | return -EOPNOTSUPP; | |
9607 | ||
9608 | if (!info->attrs[NL80211_ATTR_MAC]) | |
9609 | return -EINVAL; | |
9610 | ||
9611 | if (!rdev->ops->probe_client) | |
9612 | return -EOPNOTSUPP; | |
9613 | ||
9614 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9615 | if (!msg) | |
9616 | return -ENOMEM; | |
9617 | ||
9618 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
9619 | NL80211_CMD_PROBE_CLIENT); | |
9620 | if (!hdr) { | |
9621 | err = -ENOBUFS; | |
9622 | goto free_msg; | |
9623 | } | |
9624 | ||
9625 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
9626 | ||
9627 | err = rdev_probe_client(rdev, dev, addr, &cookie); | |
9628 | if (err) | |
9629 | goto free_msg; | |
9630 | ||
9631 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
9632 | goto nla_put_failure; | |
9633 | ||
9634 | genlmsg_end(msg, hdr); | |
9635 | ||
9636 | return genlmsg_reply(msg, info); | |
9637 | ||
9638 | nla_put_failure: | |
9639 | err = -ENOBUFS; | |
9640 | free_msg: | |
9641 | nlmsg_free(msg); | |
9642 | return err; | |
9643 | } | |
9644 | ||
9645 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) | |
9646 | { | |
9647 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9648 | struct cfg80211_beacon_registration *reg, *nreg; | |
9649 | int rv; | |
9650 | ||
9651 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
9652 | return -EOPNOTSUPP; | |
9653 | ||
9654 | nreg = kzalloc(sizeof(*nreg), GFP_KERNEL); | |
9655 | if (!nreg) | |
9656 | return -ENOMEM; | |
9657 | ||
9658 | /* First, check if already registered. */ | |
9659 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
9660 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
9661 | if (reg->nlportid == info->snd_portid) { | |
9662 | rv = -EALREADY; | |
9663 | goto out_err; | |
9664 | } | |
9665 | } | |
9666 | /* Add it to the list */ | |
9667 | nreg->nlportid = info->snd_portid; | |
9668 | list_add(&nreg->list, &rdev->beacon_registrations); | |
9669 | ||
9670 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
9671 | ||
9672 | return 0; | |
9673 | out_err: | |
9674 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
9675 | kfree(nreg); | |
9676 | return rv; | |
9677 | } | |
9678 | ||
9679 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
9680 | { | |
9681 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9682 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9683 | int err; | |
9684 | ||
9685 | if (!rdev->ops->start_p2p_device) | |
9686 | return -EOPNOTSUPP; | |
9687 | ||
9688 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
9689 | return -EOPNOTSUPP; | |
9690 | ||
9691 | if (wdev->p2p_started) | |
9692 | return 0; | |
9693 | ||
9694 | if (rfkill_blocked(rdev->rfkill)) | |
9695 | return -ERFKILL; | |
9696 | ||
9697 | err = rdev_start_p2p_device(rdev, wdev); | |
9698 | if (err) | |
9699 | return err; | |
9700 | ||
9701 | wdev->p2p_started = true; | |
9702 | rdev->opencount++; | |
9703 | ||
9704 | return 0; | |
9705 | } | |
9706 | ||
9707 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
9708 | { | |
9709 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9710 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9711 | ||
9712 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
9713 | return -EOPNOTSUPP; | |
9714 | ||
9715 | if (!rdev->ops->stop_p2p_device) | |
9716 | return -EOPNOTSUPP; | |
9717 | ||
9718 | cfg80211_stop_p2p_device(rdev, wdev); | |
9719 | ||
9720 | return 0; | |
9721 | } | |
9722 | ||
9723 | static int nl80211_get_protocol_features(struct sk_buff *skb, | |
9724 | struct genl_info *info) | |
9725 | { | |
9726 | void *hdr; | |
9727 | struct sk_buff *msg; | |
9728 | ||
9729 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9730 | if (!msg) | |
9731 | return -ENOMEM; | |
9732 | ||
9733 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
9734 | NL80211_CMD_GET_PROTOCOL_FEATURES); | |
9735 | if (!hdr) | |
9736 | goto nla_put_failure; | |
9737 | ||
9738 | if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES, | |
9739 | NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)) | |
9740 | goto nla_put_failure; | |
9741 | ||
9742 | genlmsg_end(msg, hdr); | |
9743 | return genlmsg_reply(msg, info); | |
9744 | ||
9745 | nla_put_failure: | |
9746 | kfree_skb(msg); | |
9747 | return -ENOBUFS; | |
9748 | } | |
9749 | ||
9750 | static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) | |
9751 | { | |
9752 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9753 | struct cfg80211_update_ft_ies_params ft_params; | |
9754 | struct net_device *dev = info->user_ptr[1]; | |
9755 | ||
9756 | if (!rdev->ops->update_ft_ies) | |
9757 | return -EOPNOTSUPP; | |
9758 | ||
9759 | if (!info->attrs[NL80211_ATTR_MDID] || | |
9760 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
9761 | return -EINVAL; | |
9762 | ||
9763 | memset(&ft_params, 0, sizeof(ft_params)); | |
9764 | ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]); | |
9765 | ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
9766 | ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
9767 | ||
9768 | return rdev_update_ft_ies(rdev, dev, &ft_params); | |
9769 | } | |
9770 | ||
9771 | static int nl80211_crit_protocol_start(struct sk_buff *skb, | |
9772 | struct genl_info *info) | |
9773 | { | |
9774 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9775 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9776 | enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC; | |
9777 | u16 duration; | |
9778 | int ret; | |
9779 | ||
9780 | if (!rdev->ops->crit_proto_start) | |
9781 | return -EOPNOTSUPP; | |
9782 | ||
9783 | if (WARN_ON(!rdev->ops->crit_proto_stop)) | |
9784 | return -EINVAL; | |
9785 | ||
9786 | if (rdev->crit_proto_nlportid) | |
9787 | return -EBUSY; | |
9788 | ||
9789 | /* determine protocol if provided */ | |
9790 | if (info->attrs[NL80211_ATTR_CRIT_PROT_ID]) | |
9791 | proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]); | |
9792 | ||
9793 | if (proto >= NUM_NL80211_CRIT_PROTO) | |
9794 | return -EINVAL; | |
9795 | ||
9796 | /* timeout must be provided */ | |
9797 | if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]) | |
9798 | return -EINVAL; | |
9799 | ||
9800 | duration = | |
9801 | nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]); | |
9802 | ||
9803 | if (duration > NL80211_CRIT_PROTO_MAX_DURATION) | |
9804 | return -ERANGE; | |
9805 | ||
9806 | ret = rdev_crit_proto_start(rdev, wdev, proto, duration); | |
9807 | if (!ret) | |
9808 | rdev->crit_proto_nlportid = info->snd_portid; | |
9809 | ||
9810 | return ret; | |
9811 | } | |
9812 | ||
9813 | static int nl80211_crit_protocol_stop(struct sk_buff *skb, | |
9814 | struct genl_info *info) | |
9815 | { | |
9816 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9817 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9818 | ||
9819 | if (!rdev->ops->crit_proto_stop) | |
9820 | return -EOPNOTSUPP; | |
9821 | ||
9822 | if (rdev->crit_proto_nlportid) { | |
9823 | rdev->crit_proto_nlportid = 0; | |
9824 | rdev_crit_proto_stop(rdev, wdev); | |
9825 | } | |
9826 | return 0; | |
9827 | } | |
9828 | ||
9829 | static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info) | |
9830 | { | |
9831 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9832 | struct wireless_dev *wdev = | |
9833 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
9834 | int i, err; | |
9835 | u32 vid, subcmd; | |
9836 | ||
9837 | if (!rdev->wiphy.vendor_commands) | |
9838 | return -EOPNOTSUPP; | |
9839 | ||
9840 | if (IS_ERR(wdev)) { | |
9841 | err = PTR_ERR(wdev); | |
9842 | if (err != -EINVAL) | |
9843 | return err; | |
9844 | wdev = NULL; | |
9845 | } else if (wdev->wiphy != &rdev->wiphy) { | |
9846 | return -EINVAL; | |
9847 | } | |
9848 | ||
9849 | if (!info->attrs[NL80211_ATTR_VENDOR_ID] || | |
9850 | !info->attrs[NL80211_ATTR_VENDOR_SUBCMD]) | |
9851 | return -EINVAL; | |
9852 | ||
9853 | vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]); | |
9854 | subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]); | |
9855 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { | |
9856 | const struct wiphy_vendor_command *vcmd; | |
9857 | void *data = NULL; | |
9858 | int len = 0; | |
9859 | ||
9860 | vcmd = &rdev->wiphy.vendor_commands[i]; | |
9861 | ||
9862 | if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) | |
9863 | continue; | |
9864 | ||
9865 | if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | | |
9866 | WIPHY_VENDOR_CMD_NEED_NETDEV)) { | |
9867 | if (!wdev) | |
9868 | return -EINVAL; | |
9869 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && | |
9870 | !wdev->netdev) | |
9871 | return -EINVAL; | |
9872 | ||
9873 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { | |
9874 | if (wdev->netdev && | |
9875 | !netif_running(wdev->netdev)) | |
9876 | return -ENETDOWN; | |
9877 | if (!wdev->netdev && !wdev->p2p_started) | |
9878 | return -ENETDOWN; | |
9879 | } | |
9880 | } else { | |
9881 | wdev = NULL; | |
9882 | } | |
9883 | ||
9884 | if (info->attrs[NL80211_ATTR_VENDOR_DATA]) { | |
9885 | data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
9886 | len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
9887 | } | |
9888 | ||
9889 | rdev->cur_cmd_info = info; | |
9890 | err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev, | |
9891 | data, len); | |
9892 | rdev->cur_cmd_info = NULL; | |
9893 | return err; | |
9894 | } | |
9895 | ||
9896 | return -EOPNOTSUPP; | |
9897 | } | |
9898 | ||
9899 | struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, | |
9900 | enum nl80211_commands cmd, | |
9901 | enum nl80211_attrs attr, | |
9902 | int approxlen) | |
9903 | { | |
9904 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
9905 | ||
9906 | if (WARN_ON(!rdev->cur_cmd_info)) | |
9907 | return NULL; | |
9908 | ||
9909 | return __cfg80211_alloc_vendor_skb(rdev, approxlen, | |
9910 | rdev->cur_cmd_info->snd_portid, | |
9911 | rdev->cur_cmd_info->snd_seq, | |
9912 | cmd, attr, NULL, GFP_KERNEL); | |
9913 | } | |
9914 | EXPORT_SYMBOL(__cfg80211_alloc_reply_skb); | |
9915 | ||
9916 | int cfg80211_vendor_cmd_reply(struct sk_buff *skb) | |
9917 | { | |
9918 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
9919 | void *hdr = ((void **)skb->cb)[1]; | |
9920 | struct nlattr *data = ((void **)skb->cb)[2]; | |
9921 | ||
9922 | /* clear CB data for netlink core to own from now on */ | |
9923 | memset(skb->cb, 0, sizeof(skb->cb)); | |
9924 | ||
9925 | if (WARN_ON(!rdev->cur_cmd_info)) { | |
9926 | kfree_skb(skb); | |
9927 | return -EINVAL; | |
9928 | } | |
9929 | ||
9930 | nla_nest_end(skb, data); | |
9931 | genlmsg_end(skb, hdr); | |
9932 | return genlmsg_reply(skb, rdev->cur_cmd_info); | |
9933 | } | |
9934 | EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply); | |
9935 | ||
9936 | ||
9937 | static int nl80211_set_qos_map(struct sk_buff *skb, | |
9938 | struct genl_info *info) | |
9939 | { | |
9940 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9941 | struct cfg80211_qos_map *qos_map = NULL; | |
9942 | struct net_device *dev = info->user_ptr[1]; | |
9943 | u8 *pos, len, num_des, des_len, des; | |
9944 | int ret; | |
9945 | ||
9946 | if (!rdev->ops->set_qos_map) | |
9947 | return -EOPNOTSUPP; | |
9948 | ||
9949 | if (info->attrs[NL80211_ATTR_QOS_MAP]) { | |
9950 | pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]); | |
9951 | len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]); | |
9952 | ||
9953 | if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN || | |
9954 | len > IEEE80211_QOS_MAP_LEN_MAX) | |
9955 | return -EINVAL; | |
9956 | ||
9957 | qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL); | |
9958 | if (!qos_map) | |
9959 | return -ENOMEM; | |
9960 | ||
9961 | num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1; | |
9962 | if (num_des) { | |
9963 | des_len = num_des * | |
9964 | sizeof(struct cfg80211_dscp_exception); | |
9965 | memcpy(qos_map->dscp_exception, pos, des_len); | |
9966 | qos_map->num_des = num_des; | |
9967 | for (des = 0; des < num_des; des++) { | |
9968 | if (qos_map->dscp_exception[des].up > 7) { | |
9969 | kfree(qos_map); | |
9970 | return -EINVAL; | |
9971 | } | |
9972 | } | |
9973 | pos += des_len; | |
9974 | } | |
9975 | memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN); | |
9976 | } | |
9977 | ||
9978 | wdev_lock(dev->ieee80211_ptr); | |
9979 | ret = nl80211_key_allowed(dev->ieee80211_ptr); | |
9980 | if (!ret) | |
9981 | ret = rdev_set_qos_map(rdev, dev, qos_map); | |
9982 | wdev_unlock(dev->ieee80211_ptr); | |
9983 | ||
9984 | kfree(qos_map); | |
9985 | return ret; | |
9986 | } | |
9987 | ||
9988 | static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info) | |
9989 | { | |
9990 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9991 | struct net_device *dev = info->user_ptr[1]; | |
9992 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9993 | const u8 *peer; | |
9994 | u8 tsid, up; | |
9995 | u16 admitted_time = 0; | |
9996 | int err; | |
9997 | ||
9998 | if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)) | |
9999 | return -EOPNOTSUPP; | |
10000 | ||
10001 | if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] || | |
10002 | !info->attrs[NL80211_ATTR_USER_PRIO]) | |
10003 | return -EINVAL; | |
10004 | ||
10005 | tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); | |
10006 | if (tsid >= IEEE80211_NUM_TIDS) | |
10007 | return -EINVAL; | |
10008 | ||
10009 | up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]); | |
10010 | if (up >= IEEE80211_NUM_UPS) | |
10011 | return -EINVAL; | |
10012 | ||
10013 | /* WMM uses TIDs 0-7 even for TSPEC */ | |
10014 | if (tsid >= IEEE80211_FIRST_TSPEC_TSID) { | |
10015 | /* TODO: handle 802.11 TSPEC/admission control | |
10016 | * need more attributes for that (e.g. BA session requirement); | |
10017 | * change the WMM adminssion test above to allow both then | |
10018 | */ | |
10019 | return -EINVAL; | |
10020 | } | |
10021 | ||
10022 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10023 | ||
10024 | if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) { | |
10025 | admitted_time = | |
10026 | nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]); | |
10027 | if (!admitted_time) | |
10028 | return -EINVAL; | |
10029 | } | |
10030 | ||
10031 | wdev_lock(wdev); | |
10032 | switch (wdev->iftype) { | |
10033 | case NL80211_IFTYPE_STATION: | |
10034 | case NL80211_IFTYPE_P2P_CLIENT: | |
10035 | if (wdev->current_bss) | |
10036 | break; | |
10037 | err = -ENOTCONN; | |
10038 | goto out; | |
10039 | default: | |
10040 | err = -EOPNOTSUPP; | |
10041 | goto out; | |
10042 | } | |
10043 | ||
10044 | err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time); | |
10045 | ||
10046 | out: | |
10047 | wdev_unlock(wdev); | |
10048 | return err; | |
10049 | } | |
10050 | ||
10051 | static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info) | |
10052 | { | |
10053 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10054 | struct net_device *dev = info->user_ptr[1]; | |
10055 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10056 | const u8 *peer; | |
10057 | u8 tsid; | |
10058 | int err; | |
10059 | ||
10060 | if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC]) | |
10061 | return -EINVAL; | |
10062 | ||
10063 | tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); | |
10064 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10065 | ||
10066 | wdev_lock(wdev); | |
10067 | err = rdev_del_tx_ts(rdev, dev, tsid, peer); | |
10068 | wdev_unlock(wdev); | |
10069 | ||
10070 | return err; | |
10071 | } | |
10072 | ||
10073 | static int nl80211_tdls_channel_switch(struct sk_buff *skb, | |
10074 | struct genl_info *info) | |
10075 | { | |
10076 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10077 | struct net_device *dev = info->user_ptr[1]; | |
10078 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10079 | struct cfg80211_chan_def chandef = {}; | |
10080 | const u8 *addr; | |
10081 | u8 oper_class; | |
10082 | int err; | |
10083 | ||
10084 | if (!rdev->ops->tdls_channel_switch || | |
10085 | !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) | |
10086 | return -EOPNOTSUPP; | |
10087 | ||
10088 | switch (dev->ieee80211_ptr->iftype) { | |
10089 | case NL80211_IFTYPE_STATION: | |
10090 | case NL80211_IFTYPE_P2P_CLIENT: | |
10091 | break; | |
10092 | default: | |
10093 | return -EOPNOTSUPP; | |
10094 | } | |
10095 | ||
10096 | if (!info->attrs[NL80211_ATTR_MAC] || | |
10097 | !info->attrs[NL80211_ATTR_OPER_CLASS]) | |
10098 | return -EINVAL; | |
10099 | ||
10100 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
10101 | if (err) | |
10102 | return err; | |
10103 | ||
10104 | /* | |
10105 | * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012 | |
10106 | * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the | |
10107 | * specification is not defined for them. | |
10108 | */ | |
10109 | if (chandef.chan->band == IEEE80211_BAND_2GHZ && | |
10110 | chandef.width != NL80211_CHAN_WIDTH_20_NOHT && | |
10111 | chandef.width != NL80211_CHAN_WIDTH_20) | |
10112 | return -EINVAL; | |
10113 | ||
10114 | /* we will be active on the TDLS link */ | |
10115 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype)) | |
10116 | return -EINVAL; | |
10117 | ||
10118 | /* don't allow switching to DFS channels */ | |
10119 | if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype)) | |
10120 | return -EINVAL; | |
10121 | ||
10122 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10123 | oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]); | |
10124 | ||
10125 | wdev_lock(wdev); | |
10126 | err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef); | |
10127 | wdev_unlock(wdev); | |
10128 | ||
10129 | return err; | |
10130 | } | |
10131 | ||
10132 | static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb, | |
10133 | struct genl_info *info) | |
10134 | { | |
10135 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10136 | struct net_device *dev = info->user_ptr[1]; | |
10137 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10138 | const u8 *addr; | |
10139 | ||
10140 | if (!rdev->ops->tdls_channel_switch || | |
10141 | !rdev->ops->tdls_cancel_channel_switch || | |
10142 | !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) | |
10143 | return -EOPNOTSUPP; | |
10144 | ||
10145 | switch (dev->ieee80211_ptr->iftype) { | |
10146 | case NL80211_IFTYPE_STATION: | |
10147 | case NL80211_IFTYPE_P2P_CLIENT: | |
10148 | break; | |
10149 | default: | |
10150 | return -EOPNOTSUPP; | |
10151 | } | |
10152 | ||
10153 | if (!info->attrs[NL80211_ATTR_MAC]) | |
10154 | return -EINVAL; | |
10155 | ||
10156 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10157 | ||
10158 | wdev_lock(wdev); | |
10159 | rdev_tdls_cancel_channel_switch(rdev, dev, addr); | |
10160 | wdev_unlock(wdev); | |
10161 | ||
10162 | return 0; | |
10163 | } | |
10164 | ||
10165 | #define NL80211_FLAG_NEED_WIPHY 0x01 | |
10166 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
10167 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
10168 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 | |
10169 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
10170 | NL80211_FLAG_CHECK_NETDEV_UP) | |
10171 | #define NL80211_FLAG_NEED_WDEV 0x10 | |
10172 | /* If a netdev is associated, it must be UP, P2P must be started */ | |
10173 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ | |
10174 | NL80211_FLAG_CHECK_NETDEV_UP) | |
10175 | #define NL80211_FLAG_CLEAR_SKB 0x20 | |
10176 | ||
10177 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, | |
10178 | struct genl_info *info) | |
10179 | { | |
10180 | struct cfg80211_registered_device *rdev; | |
10181 | struct wireless_dev *wdev; | |
10182 | struct net_device *dev; | |
10183 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
10184 | ||
10185 | if (rtnl) | |
10186 | rtnl_lock(); | |
10187 | ||
10188 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
10189 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); | |
10190 | if (IS_ERR(rdev)) { | |
10191 | if (rtnl) | |
10192 | rtnl_unlock(); | |
10193 | return PTR_ERR(rdev); | |
10194 | } | |
10195 | info->user_ptr[0] = rdev; | |
10196 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || | |
10197 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
10198 | ASSERT_RTNL(); | |
10199 | ||
10200 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), | |
10201 | info->attrs); | |
10202 | if (IS_ERR(wdev)) { | |
10203 | if (rtnl) | |
10204 | rtnl_unlock(); | |
10205 | return PTR_ERR(wdev); | |
10206 | } | |
10207 | ||
10208 | dev = wdev->netdev; | |
10209 | rdev = wiphy_to_rdev(wdev->wiphy); | |
10210 | ||
10211 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
10212 | if (!dev) { | |
10213 | if (rtnl) | |
10214 | rtnl_unlock(); | |
10215 | return -EINVAL; | |
10216 | } | |
10217 | ||
10218 | info->user_ptr[1] = dev; | |
10219 | } else { | |
10220 | info->user_ptr[1] = wdev; | |
10221 | } | |
10222 | ||
10223 | if (dev) { | |
10224 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
10225 | !netif_running(dev)) { | |
10226 | if (rtnl) | |
10227 | rtnl_unlock(); | |
10228 | return -ENETDOWN; | |
10229 | } | |
10230 | ||
10231 | dev_hold(dev); | |
10232 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { | |
10233 | if (!wdev->p2p_started) { | |
10234 | if (rtnl) | |
10235 | rtnl_unlock(); | |
10236 | return -ENETDOWN; | |
10237 | } | |
10238 | } | |
10239 | ||
10240 | info->user_ptr[0] = rdev; | |
10241 | } | |
10242 | ||
10243 | return 0; | |
10244 | } | |
10245 | ||
10246 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, | |
10247 | struct genl_info *info) | |
10248 | { | |
10249 | if (info->user_ptr[1]) { | |
10250 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
10251 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10252 | ||
10253 | if (wdev->netdev) | |
10254 | dev_put(wdev->netdev); | |
10255 | } else { | |
10256 | dev_put(info->user_ptr[1]); | |
10257 | } | |
10258 | } | |
10259 | ||
10260 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
10261 | rtnl_unlock(); | |
10262 | ||
10263 | /* If needed, clear the netlink message payload from the SKB | |
10264 | * as it might contain key data that shouldn't stick around on | |
10265 | * the heap after the SKB is freed. The netlink message header | |
10266 | * is still needed for further processing, so leave it intact. | |
10267 | */ | |
10268 | if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) { | |
10269 | struct nlmsghdr *nlh = nlmsg_hdr(skb); | |
10270 | ||
10271 | memset(nlmsg_data(nlh), 0, nlmsg_len(nlh)); | |
10272 | } | |
10273 | } | |
10274 | ||
10275 | static const struct genl_ops nl80211_ops[] = { | |
10276 | { | |
10277 | .cmd = NL80211_CMD_GET_WIPHY, | |
10278 | .doit = nl80211_get_wiphy, | |
10279 | .dumpit = nl80211_dump_wiphy, | |
10280 | .done = nl80211_dump_wiphy_done, | |
10281 | .policy = nl80211_policy, | |
10282 | /* can be retrieved by unprivileged users */ | |
10283 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10284 | NL80211_FLAG_NEED_RTNL, | |
10285 | }, | |
10286 | { | |
10287 | .cmd = NL80211_CMD_SET_WIPHY, | |
10288 | .doit = nl80211_set_wiphy, | |
10289 | .policy = nl80211_policy, | |
10290 | .flags = GENL_ADMIN_PERM, | |
10291 | .internal_flags = NL80211_FLAG_NEED_RTNL, | |
10292 | }, | |
10293 | { | |
10294 | .cmd = NL80211_CMD_GET_INTERFACE, | |
10295 | .doit = nl80211_get_interface, | |
10296 | .dumpit = nl80211_dump_interface, | |
10297 | .policy = nl80211_policy, | |
10298 | /* can be retrieved by unprivileged users */ | |
10299 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
10300 | NL80211_FLAG_NEED_RTNL, | |
10301 | }, | |
10302 | { | |
10303 | .cmd = NL80211_CMD_SET_INTERFACE, | |
10304 | .doit = nl80211_set_interface, | |
10305 | .policy = nl80211_policy, | |
10306 | .flags = GENL_ADMIN_PERM, | |
10307 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10308 | NL80211_FLAG_NEED_RTNL, | |
10309 | }, | |
10310 | { | |
10311 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
10312 | .doit = nl80211_new_interface, | |
10313 | .policy = nl80211_policy, | |
10314 | .flags = GENL_ADMIN_PERM, | |
10315 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10316 | NL80211_FLAG_NEED_RTNL, | |
10317 | }, | |
10318 | { | |
10319 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
10320 | .doit = nl80211_del_interface, | |
10321 | .policy = nl80211_policy, | |
10322 | .flags = GENL_ADMIN_PERM, | |
10323 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
10324 | NL80211_FLAG_NEED_RTNL, | |
10325 | }, | |
10326 | { | |
10327 | .cmd = NL80211_CMD_GET_KEY, | |
10328 | .doit = nl80211_get_key, | |
10329 | .policy = nl80211_policy, | |
10330 | .flags = GENL_ADMIN_PERM, | |
10331 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10332 | NL80211_FLAG_NEED_RTNL, | |
10333 | }, | |
10334 | { | |
10335 | .cmd = NL80211_CMD_SET_KEY, | |
10336 | .doit = nl80211_set_key, | |
10337 | .policy = nl80211_policy, | |
10338 | .flags = GENL_ADMIN_PERM, | |
10339 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10340 | NL80211_FLAG_NEED_RTNL | | |
10341 | NL80211_FLAG_CLEAR_SKB, | |
10342 | }, | |
10343 | { | |
10344 | .cmd = NL80211_CMD_NEW_KEY, | |
10345 | .doit = nl80211_new_key, | |
10346 | .policy = nl80211_policy, | |
10347 | .flags = GENL_ADMIN_PERM, | |
10348 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10349 | NL80211_FLAG_NEED_RTNL | | |
10350 | NL80211_FLAG_CLEAR_SKB, | |
10351 | }, | |
10352 | { | |
10353 | .cmd = NL80211_CMD_DEL_KEY, | |
10354 | .doit = nl80211_del_key, | |
10355 | .policy = nl80211_policy, | |
10356 | .flags = GENL_ADMIN_PERM, | |
10357 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10358 | NL80211_FLAG_NEED_RTNL, | |
10359 | }, | |
10360 | { | |
10361 | .cmd = NL80211_CMD_SET_BEACON, | |
10362 | .policy = nl80211_policy, | |
10363 | .flags = GENL_ADMIN_PERM, | |
10364 | .doit = nl80211_set_beacon, | |
10365 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10366 | NL80211_FLAG_NEED_RTNL, | |
10367 | }, | |
10368 | { | |
10369 | .cmd = NL80211_CMD_START_AP, | |
10370 | .policy = nl80211_policy, | |
10371 | .flags = GENL_ADMIN_PERM, | |
10372 | .doit = nl80211_start_ap, | |
10373 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10374 | NL80211_FLAG_NEED_RTNL, | |
10375 | }, | |
10376 | { | |
10377 | .cmd = NL80211_CMD_STOP_AP, | |
10378 | .policy = nl80211_policy, | |
10379 | .flags = GENL_ADMIN_PERM, | |
10380 | .doit = nl80211_stop_ap, | |
10381 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10382 | NL80211_FLAG_NEED_RTNL, | |
10383 | }, | |
10384 | { | |
10385 | .cmd = NL80211_CMD_GET_STATION, | |
10386 | .doit = nl80211_get_station, | |
10387 | .dumpit = nl80211_dump_station, | |
10388 | .policy = nl80211_policy, | |
10389 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10390 | NL80211_FLAG_NEED_RTNL, | |
10391 | }, | |
10392 | { | |
10393 | .cmd = NL80211_CMD_SET_STATION, | |
10394 | .doit = nl80211_set_station, | |
10395 | .policy = nl80211_policy, | |
10396 | .flags = GENL_ADMIN_PERM, | |
10397 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10398 | NL80211_FLAG_NEED_RTNL, | |
10399 | }, | |
10400 | { | |
10401 | .cmd = NL80211_CMD_NEW_STATION, | |
10402 | .doit = nl80211_new_station, | |
10403 | .policy = nl80211_policy, | |
10404 | .flags = GENL_ADMIN_PERM, | |
10405 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10406 | NL80211_FLAG_NEED_RTNL, | |
10407 | }, | |
10408 | { | |
10409 | .cmd = NL80211_CMD_DEL_STATION, | |
10410 | .doit = nl80211_del_station, | |
10411 | .policy = nl80211_policy, | |
10412 | .flags = GENL_ADMIN_PERM, | |
10413 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10414 | NL80211_FLAG_NEED_RTNL, | |
10415 | }, | |
10416 | { | |
10417 | .cmd = NL80211_CMD_GET_MPATH, | |
10418 | .doit = nl80211_get_mpath, | |
10419 | .dumpit = nl80211_dump_mpath, | |
10420 | .policy = nl80211_policy, | |
10421 | .flags = GENL_ADMIN_PERM, | |
10422 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10423 | NL80211_FLAG_NEED_RTNL, | |
10424 | }, | |
10425 | { | |
10426 | .cmd = NL80211_CMD_GET_MPP, | |
10427 | .doit = nl80211_get_mpp, | |
10428 | .dumpit = nl80211_dump_mpp, | |
10429 | .policy = nl80211_policy, | |
10430 | .flags = GENL_ADMIN_PERM, | |
10431 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10432 | NL80211_FLAG_NEED_RTNL, | |
10433 | }, | |
10434 | { | |
10435 | .cmd = NL80211_CMD_SET_MPATH, | |
10436 | .doit = nl80211_set_mpath, | |
10437 | .policy = nl80211_policy, | |
10438 | .flags = GENL_ADMIN_PERM, | |
10439 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10440 | NL80211_FLAG_NEED_RTNL, | |
10441 | }, | |
10442 | { | |
10443 | .cmd = NL80211_CMD_NEW_MPATH, | |
10444 | .doit = nl80211_new_mpath, | |
10445 | .policy = nl80211_policy, | |
10446 | .flags = GENL_ADMIN_PERM, | |
10447 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10448 | NL80211_FLAG_NEED_RTNL, | |
10449 | }, | |
10450 | { | |
10451 | .cmd = NL80211_CMD_DEL_MPATH, | |
10452 | .doit = nl80211_del_mpath, | |
10453 | .policy = nl80211_policy, | |
10454 | .flags = GENL_ADMIN_PERM, | |
10455 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10456 | NL80211_FLAG_NEED_RTNL, | |
10457 | }, | |
10458 | { | |
10459 | .cmd = NL80211_CMD_SET_BSS, | |
10460 | .doit = nl80211_set_bss, | |
10461 | .policy = nl80211_policy, | |
10462 | .flags = GENL_ADMIN_PERM, | |
10463 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10464 | NL80211_FLAG_NEED_RTNL, | |
10465 | }, | |
10466 | { | |
10467 | .cmd = NL80211_CMD_GET_REG, | |
10468 | .doit = nl80211_get_reg_do, | |
10469 | .dumpit = nl80211_get_reg_dump, | |
10470 | .policy = nl80211_policy, | |
10471 | .internal_flags = NL80211_FLAG_NEED_RTNL, | |
10472 | /* can be retrieved by unprivileged users */ | |
10473 | }, | |
10474 | { | |
10475 | .cmd = NL80211_CMD_SET_REG, | |
10476 | .doit = nl80211_set_reg, | |
10477 | .policy = nl80211_policy, | |
10478 | .flags = GENL_ADMIN_PERM, | |
10479 | .internal_flags = NL80211_FLAG_NEED_RTNL, | |
10480 | }, | |
10481 | { | |
10482 | .cmd = NL80211_CMD_REQ_SET_REG, | |
10483 | .doit = nl80211_req_set_reg, | |
10484 | .policy = nl80211_policy, | |
10485 | .flags = GENL_ADMIN_PERM, | |
10486 | }, | |
10487 | { | |
10488 | .cmd = NL80211_CMD_GET_MESH_CONFIG, | |
10489 | .doit = nl80211_get_mesh_config, | |
10490 | .policy = nl80211_policy, | |
10491 | /* can be retrieved by unprivileged users */ | |
10492 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10493 | NL80211_FLAG_NEED_RTNL, | |
10494 | }, | |
10495 | { | |
10496 | .cmd = NL80211_CMD_SET_MESH_CONFIG, | |
10497 | .doit = nl80211_update_mesh_config, | |
10498 | .policy = nl80211_policy, | |
10499 | .flags = GENL_ADMIN_PERM, | |
10500 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10501 | NL80211_FLAG_NEED_RTNL, | |
10502 | }, | |
10503 | { | |
10504 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
10505 | .doit = nl80211_trigger_scan, | |
10506 | .policy = nl80211_policy, | |
10507 | .flags = GENL_ADMIN_PERM, | |
10508 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10509 | NL80211_FLAG_NEED_RTNL, | |
10510 | }, | |
10511 | { | |
10512 | .cmd = NL80211_CMD_GET_SCAN, | |
10513 | .policy = nl80211_policy, | |
10514 | .dumpit = nl80211_dump_scan, | |
10515 | }, | |
10516 | { | |
10517 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
10518 | .doit = nl80211_start_sched_scan, | |
10519 | .policy = nl80211_policy, | |
10520 | .flags = GENL_ADMIN_PERM, | |
10521 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10522 | NL80211_FLAG_NEED_RTNL, | |
10523 | }, | |
10524 | { | |
10525 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
10526 | .doit = nl80211_stop_sched_scan, | |
10527 | .policy = nl80211_policy, | |
10528 | .flags = GENL_ADMIN_PERM, | |
10529 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10530 | NL80211_FLAG_NEED_RTNL, | |
10531 | }, | |
10532 | { | |
10533 | .cmd = NL80211_CMD_AUTHENTICATE, | |
10534 | .doit = nl80211_authenticate, | |
10535 | .policy = nl80211_policy, | |
10536 | .flags = GENL_ADMIN_PERM, | |
10537 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10538 | NL80211_FLAG_NEED_RTNL | | |
10539 | NL80211_FLAG_CLEAR_SKB, | |
10540 | }, | |
10541 | { | |
10542 | .cmd = NL80211_CMD_ASSOCIATE, | |
10543 | .doit = nl80211_associate, | |
10544 | .policy = nl80211_policy, | |
10545 | .flags = GENL_ADMIN_PERM, | |
10546 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10547 | NL80211_FLAG_NEED_RTNL, | |
10548 | }, | |
10549 | { | |
10550 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
10551 | .doit = nl80211_deauthenticate, | |
10552 | .policy = nl80211_policy, | |
10553 | .flags = GENL_ADMIN_PERM, | |
10554 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10555 | NL80211_FLAG_NEED_RTNL, | |
10556 | }, | |
10557 | { | |
10558 | .cmd = NL80211_CMD_DISASSOCIATE, | |
10559 | .doit = nl80211_disassociate, | |
10560 | .policy = nl80211_policy, | |
10561 | .flags = GENL_ADMIN_PERM, | |
10562 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10563 | NL80211_FLAG_NEED_RTNL, | |
10564 | }, | |
10565 | { | |
10566 | .cmd = NL80211_CMD_JOIN_IBSS, | |
10567 | .doit = nl80211_join_ibss, | |
10568 | .policy = nl80211_policy, | |
10569 | .flags = GENL_ADMIN_PERM, | |
10570 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10571 | NL80211_FLAG_NEED_RTNL, | |
10572 | }, | |
10573 | { | |
10574 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
10575 | .doit = nl80211_leave_ibss, | |
10576 | .policy = nl80211_policy, | |
10577 | .flags = GENL_ADMIN_PERM, | |
10578 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10579 | NL80211_FLAG_NEED_RTNL, | |
10580 | }, | |
10581 | #ifdef CONFIG_NL80211_TESTMODE | |
10582 | { | |
10583 | .cmd = NL80211_CMD_TESTMODE, | |
10584 | .doit = nl80211_testmode_do, | |
10585 | .dumpit = nl80211_testmode_dump, | |
10586 | .policy = nl80211_policy, | |
10587 | .flags = GENL_ADMIN_PERM, | |
10588 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10589 | NL80211_FLAG_NEED_RTNL, | |
10590 | }, | |
10591 | #endif | |
10592 | { | |
10593 | .cmd = NL80211_CMD_CONNECT, | |
10594 | .doit = nl80211_connect, | |
10595 | .policy = nl80211_policy, | |
10596 | .flags = GENL_ADMIN_PERM, | |
10597 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10598 | NL80211_FLAG_NEED_RTNL, | |
10599 | }, | |
10600 | { | |
10601 | .cmd = NL80211_CMD_DISCONNECT, | |
10602 | .doit = nl80211_disconnect, | |
10603 | .policy = nl80211_policy, | |
10604 | .flags = GENL_ADMIN_PERM, | |
10605 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10606 | NL80211_FLAG_NEED_RTNL, | |
10607 | }, | |
10608 | { | |
10609 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
10610 | .doit = nl80211_wiphy_netns, | |
10611 | .policy = nl80211_policy, | |
10612 | .flags = GENL_ADMIN_PERM, | |
10613 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10614 | NL80211_FLAG_NEED_RTNL, | |
10615 | }, | |
10616 | { | |
10617 | .cmd = NL80211_CMD_GET_SURVEY, | |
10618 | .policy = nl80211_policy, | |
10619 | .dumpit = nl80211_dump_survey, | |
10620 | }, | |
10621 | { | |
10622 | .cmd = NL80211_CMD_SET_PMKSA, | |
10623 | .doit = nl80211_setdel_pmksa, | |
10624 | .policy = nl80211_policy, | |
10625 | .flags = GENL_ADMIN_PERM, | |
10626 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10627 | NL80211_FLAG_NEED_RTNL, | |
10628 | }, | |
10629 | { | |
10630 | .cmd = NL80211_CMD_DEL_PMKSA, | |
10631 | .doit = nl80211_setdel_pmksa, | |
10632 | .policy = nl80211_policy, | |
10633 | .flags = GENL_ADMIN_PERM, | |
10634 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10635 | NL80211_FLAG_NEED_RTNL, | |
10636 | }, | |
10637 | { | |
10638 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
10639 | .doit = nl80211_flush_pmksa, | |
10640 | .policy = nl80211_policy, | |
10641 | .flags = GENL_ADMIN_PERM, | |
10642 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10643 | NL80211_FLAG_NEED_RTNL, | |
10644 | }, | |
10645 | { | |
10646 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
10647 | .doit = nl80211_remain_on_channel, | |
10648 | .policy = nl80211_policy, | |
10649 | .flags = GENL_ADMIN_PERM, | |
10650 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10651 | NL80211_FLAG_NEED_RTNL, | |
10652 | }, | |
10653 | { | |
10654 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
10655 | .doit = nl80211_cancel_remain_on_channel, | |
10656 | .policy = nl80211_policy, | |
10657 | .flags = GENL_ADMIN_PERM, | |
10658 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10659 | NL80211_FLAG_NEED_RTNL, | |
10660 | }, | |
10661 | { | |
10662 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
10663 | .doit = nl80211_set_tx_bitrate_mask, | |
10664 | .policy = nl80211_policy, | |
10665 | .flags = GENL_ADMIN_PERM, | |
10666 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10667 | NL80211_FLAG_NEED_RTNL, | |
10668 | }, | |
10669 | { | |
10670 | .cmd = NL80211_CMD_REGISTER_FRAME, | |
10671 | .doit = nl80211_register_mgmt, | |
10672 | .policy = nl80211_policy, | |
10673 | .flags = GENL_ADMIN_PERM, | |
10674 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
10675 | NL80211_FLAG_NEED_RTNL, | |
10676 | }, | |
10677 | { | |
10678 | .cmd = NL80211_CMD_FRAME, | |
10679 | .doit = nl80211_tx_mgmt, | |
10680 | .policy = nl80211_policy, | |
10681 | .flags = GENL_ADMIN_PERM, | |
10682 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10683 | NL80211_FLAG_NEED_RTNL, | |
10684 | }, | |
10685 | { | |
10686 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
10687 | .doit = nl80211_tx_mgmt_cancel_wait, | |
10688 | .policy = nl80211_policy, | |
10689 | .flags = GENL_ADMIN_PERM, | |
10690 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10691 | NL80211_FLAG_NEED_RTNL, | |
10692 | }, | |
10693 | { | |
10694 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
10695 | .doit = nl80211_set_power_save, | |
10696 | .policy = nl80211_policy, | |
10697 | .flags = GENL_ADMIN_PERM, | |
10698 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10699 | NL80211_FLAG_NEED_RTNL, | |
10700 | }, | |
10701 | { | |
10702 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
10703 | .doit = nl80211_get_power_save, | |
10704 | .policy = nl80211_policy, | |
10705 | /* can be retrieved by unprivileged users */ | |
10706 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10707 | NL80211_FLAG_NEED_RTNL, | |
10708 | }, | |
10709 | { | |
10710 | .cmd = NL80211_CMD_SET_CQM, | |
10711 | .doit = nl80211_set_cqm, | |
10712 | .policy = nl80211_policy, | |
10713 | .flags = GENL_ADMIN_PERM, | |
10714 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10715 | NL80211_FLAG_NEED_RTNL, | |
10716 | }, | |
10717 | { | |
10718 | .cmd = NL80211_CMD_SET_CHANNEL, | |
10719 | .doit = nl80211_set_channel, | |
10720 | .policy = nl80211_policy, | |
10721 | .flags = GENL_ADMIN_PERM, | |
10722 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10723 | NL80211_FLAG_NEED_RTNL, | |
10724 | }, | |
10725 | { | |
10726 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
10727 | .doit = nl80211_set_wds_peer, | |
10728 | .policy = nl80211_policy, | |
10729 | .flags = GENL_ADMIN_PERM, | |
10730 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10731 | NL80211_FLAG_NEED_RTNL, | |
10732 | }, | |
10733 | { | |
10734 | .cmd = NL80211_CMD_JOIN_MESH, | |
10735 | .doit = nl80211_join_mesh, | |
10736 | .policy = nl80211_policy, | |
10737 | .flags = GENL_ADMIN_PERM, | |
10738 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10739 | NL80211_FLAG_NEED_RTNL, | |
10740 | }, | |
10741 | { | |
10742 | .cmd = NL80211_CMD_LEAVE_MESH, | |
10743 | .doit = nl80211_leave_mesh, | |
10744 | .policy = nl80211_policy, | |
10745 | .flags = GENL_ADMIN_PERM, | |
10746 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10747 | NL80211_FLAG_NEED_RTNL, | |
10748 | }, | |
10749 | { | |
10750 | .cmd = NL80211_CMD_JOIN_OCB, | |
10751 | .doit = nl80211_join_ocb, | |
10752 | .policy = nl80211_policy, | |
10753 | .flags = GENL_ADMIN_PERM, | |
10754 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10755 | NL80211_FLAG_NEED_RTNL, | |
10756 | }, | |
10757 | { | |
10758 | .cmd = NL80211_CMD_LEAVE_OCB, | |
10759 | .doit = nl80211_leave_ocb, | |
10760 | .policy = nl80211_policy, | |
10761 | .flags = GENL_ADMIN_PERM, | |
10762 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10763 | NL80211_FLAG_NEED_RTNL, | |
10764 | }, | |
10765 | #ifdef CONFIG_PM | |
10766 | { | |
10767 | .cmd = NL80211_CMD_GET_WOWLAN, | |
10768 | .doit = nl80211_get_wowlan, | |
10769 | .policy = nl80211_policy, | |
10770 | /* can be retrieved by unprivileged users */ | |
10771 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10772 | NL80211_FLAG_NEED_RTNL, | |
10773 | }, | |
10774 | { | |
10775 | .cmd = NL80211_CMD_SET_WOWLAN, | |
10776 | .doit = nl80211_set_wowlan, | |
10777 | .policy = nl80211_policy, | |
10778 | .flags = GENL_ADMIN_PERM, | |
10779 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10780 | NL80211_FLAG_NEED_RTNL, | |
10781 | }, | |
10782 | #endif | |
10783 | { | |
10784 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
10785 | .doit = nl80211_set_rekey_data, | |
10786 | .policy = nl80211_policy, | |
10787 | .flags = GENL_ADMIN_PERM, | |
10788 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10789 | NL80211_FLAG_NEED_RTNL | | |
10790 | NL80211_FLAG_CLEAR_SKB, | |
10791 | }, | |
10792 | { | |
10793 | .cmd = NL80211_CMD_TDLS_MGMT, | |
10794 | .doit = nl80211_tdls_mgmt, | |
10795 | .policy = nl80211_policy, | |
10796 | .flags = GENL_ADMIN_PERM, | |
10797 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10798 | NL80211_FLAG_NEED_RTNL, | |
10799 | }, | |
10800 | { | |
10801 | .cmd = NL80211_CMD_TDLS_OPER, | |
10802 | .doit = nl80211_tdls_oper, | |
10803 | .policy = nl80211_policy, | |
10804 | .flags = GENL_ADMIN_PERM, | |
10805 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10806 | NL80211_FLAG_NEED_RTNL, | |
10807 | }, | |
10808 | { | |
10809 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
10810 | .doit = nl80211_register_unexpected_frame, | |
10811 | .policy = nl80211_policy, | |
10812 | .flags = GENL_ADMIN_PERM, | |
10813 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10814 | NL80211_FLAG_NEED_RTNL, | |
10815 | }, | |
10816 | { | |
10817 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
10818 | .doit = nl80211_probe_client, | |
10819 | .policy = nl80211_policy, | |
10820 | .flags = GENL_ADMIN_PERM, | |
10821 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10822 | NL80211_FLAG_NEED_RTNL, | |
10823 | }, | |
10824 | { | |
10825 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
10826 | .doit = nl80211_register_beacons, | |
10827 | .policy = nl80211_policy, | |
10828 | .flags = GENL_ADMIN_PERM, | |
10829 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10830 | NL80211_FLAG_NEED_RTNL, | |
10831 | }, | |
10832 | { | |
10833 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
10834 | .doit = nl80211_set_noack_map, | |
10835 | .policy = nl80211_policy, | |
10836 | .flags = GENL_ADMIN_PERM, | |
10837 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10838 | NL80211_FLAG_NEED_RTNL, | |
10839 | }, | |
10840 | { | |
10841 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
10842 | .doit = nl80211_start_p2p_device, | |
10843 | .policy = nl80211_policy, | |
10844 | .flags = GENL_ADMIN_PERM, | |
10845 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
10846 | NL80211_FLAG_NEED_RTNL, | |
10847 | }, | |
10848 | { | |
10849 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
10850 | .doit = nl80211_stop_p2p_device, | |
10851 | .policy = nl80211_policy, | |
10852 | .flags = GENL_ADMIN_PERM, | |
10853 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10854 | NL80211_FLAG_NEED_RTNL, | |
10855 | }, | |
10856 | { | |
10857 | .cmd = NL80211_CMD_SET_MCAST_RATE, | |
10858 | .doit = nl80211_set_mcast_rate, | |
10859 | .policy = nl80211_policy, | |
10860 | .flags = GENL_ADMIN_PERM, | |
10861 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10862 | NL80211_FLAG_NEED_RTNL, | |
10863 | }, | |
10864 | { | |
10865 | .cmd = NL80211_CMD_SET_MAC_ACL, | |
10866 | .doit = nl80211_set_mac_acl, | |
10867 | .policy = nl80211_policy, | |
10868 | .flags = GENL_ADMIN_PERM, | |
10869 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
10870 | NL80211_FLAG_NEED_RTNL, | |
10871 | }, | |
10872 | { | |
10873 | .cmd = NL80211_CMD_RADAR_DETECT, | |
10874 | .doit = nl80211_start_radar_detection, | |
10875 | .policy = nl80211_policy, | |
10876 | .flags = GENL_ADMIN_PERM, | |
10877 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10878 | NL80211_FLAG_NEED_RTNL, | |
10879 | }, | |
10880 | { | |
10881 | .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES, | |
10882 | .doit = nl80211_get_protocol_features, | |
10883 | .policy = nl80211_policy, | |
10884 | }, | |
10885 | { | |
10886 | .cmd = NL80211_CMD_UPDATE_FT_IES, | |
10887 | .doit = nl80211_update_ft_ies, | |
10888 | .policy = nl80211_policy, | |
10889 | .flags = GENL_ADMIN_PERM, | |
10890 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10891 | NL80211_FLAG_NEED_RTNL, | |
10892 | }, | |
10893 | { | |
10894 | .cmd = NL80211_CMD_CRIT_PROTOCOL_START, | |
10895 | .doit = nl80211_crit_protocol_start, | |
10896 | .policy = nl80211_policy, | |
10897 | .flags = GENL_ADMIN_PERM, | |
10898 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10899 | NL80211_FLAG_NEED_RTNL, | |
10900 | }, | |
10901 | { | |
10902 | .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP, | |
10903 | .doit = nl80211_crit_protocol_stop, | |
10904 | .policy = nl80211_policy, | |
10905 | .flags = GENL_ADMIN_PERM, | |
10906 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10907 | NL80211_FLAG_NEED_RTNL, | |
10908 | }, | |
10909 | { | |
10910 | .cmd = NL80211_CMD_GET_COALESCE, | |
10911 | .doit = nl80211_get_coalesce, | |
10912 | .policy = nl80211_policy, | |
10913 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10914 | NL80211_FLAG_NEED_RTNL, | |
10915 | }, | |
10916 | { | |
10917 | .cmd = NL80211_CMD_SET_COALESCE, | |
10918 | .doit = nl80211_set_coalesce, | |
10919 | .policy = nl80211_policy, | |
10920 | .flags = GENL_ADMIN_PERM, | |
10921 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10922 | NL80211_FLAG_NEED_RTNL, | |
10923 | }, | |
10924 | { | |
10925 | .cmd = NL80211_CMD_CHANNEL_SWITCH, | |
10926 | .doit = nl80211_channel_switch, | |
10927 | .policy = nl80211_policy, | |
10928 | .flags = GENL_ADMIN_PERM, | |
10929 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10930 | NL80211_FLAG_NEED_RTNL, | |
10931 | }, | |
10932 | { | |
10933 | .cmd = NL80211_CMD_VENDOR, | |
10934 | .doit = nl80211_vendor_cmd, | |
10935 | .policy = nl80211_policy, | |
10936 | .flags = GENL_ADMIN_PERM, | |
10937 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
10938 | NL80211_FLAG_NEED_RTNL, | |
10939 | }, | |
10940 | { | |
10941 | .cmd = NL80211_CMD_SET_QOS_MAP, | |
10942 | .doit = nl80211_set_qos_map, | |
10943 | .policy = nl80211_policy, | |
10944 | .flags = GENL_ADMIN_PERM, | |
10945 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10946 | NL80211_FLAG_NEED_RTNL, | |
10947 | }, | |
10948 | { | |
10949 | .cmd = NL80211_CMD_ADD_TX_TS, | |
10950 | .doit = nl80211_add_tx_ts, | |
10951 | .policy = nl80211_policy, | |
10952 | .flags = GENL_ADMIN_PERM, | |
10953 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10954 | NL80211_FLAG_NEED_RTNL, | |
10955 | }, | |
10956 | { | |
10957 | .cmd = NL80211_CMD_DEL_TX_TS, | |
10958 | .doit = nl80211_del_tx_ts, | |
10959 | .policy = nl80211_policy, | |
10960 | .flags = GENL_ADMIN_PERM, | |
10961 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10962 | NL80211_FLAG_NEED_RTNL, | |
10963 | }, | |
10964 | { | |
10965 | .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH, | |
10966 | .doit = nl80211_tdls_channel_switch, | |
10967 | .policy = nl80211_policy, | |
10968 | .flags = GENL_ADMIN_PERM, | |
10969 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10970 | NL80211_FLAG_NEED_RTNL, | |
10971 | }, | |
10972 | { | |
10973 | .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH, | |
10974 | .doit = nl80211_tdls_cancel_channel_switch, | |
10975 | .policy = nl80211_policy, | |
10976 | .flags = GENL_ADMIN_PERM, | |
10977 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10978 | NL80211_FLAG_NEED_RTNL, | |
10979 | }, | |
10980 | }; | |
10981 | ||
10982 | /* notification functions */ | |
10983 | ||
10984 | void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev, | |
10985 | enum nl80211_commands cmd) | |
10986 | { | |
10987 | struct sk_buff *msg; | |
10988 | struct nl80211_dump_wiphy_state state = {}; | |
10989 | ||
10990 | WARN_ON(cmd != NL80211_CMD_NEW_WIPHY && | |
10991 | cmd != NL80211_CMD_DEL_WIPHY); | |
10992 | ||
10993 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
10994 | if (!msg) | |
10995 | return; | |
10996 | ||
10997 | if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) { | |
10998 | nlmsg_free(msg); | |
10999 | return; | |
11000 | } | |
11001 | ||
11002 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11003 | NL80211_MCGRP_CONFIG, GFP_KERNEL); | |
11004 | } | |
11005 | ||
11006 | static int nl80211_add_scan_req(struct sk_buff *msg, | |
11007 | struct cfg80211_registered_device *rdev) | |
11008 | { | |
11009 | struct cfg80211_scan_request *req = rdev->scan_req; | |
11010 | struct nlattr *nest; | |
11011 | int i; | |
11012 | ||
11013 | if (WARN_ON(!req)) | |
11014 | return 0; | |
11015 | ||
11016 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
11017 | if (!nest) | |
11018 | goto nla_put_failure; | |
11019 | for (i = 0; i < req->n_ssids; i++) { | |
11020 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
11021 | goto nla_put_failure; | |
11022 | } | |
11023 | nla_nest_end(msg, nest); | |
11024 | ||
11025 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
11026 | if (!nest) | |
11027 | goto nla_put_failure; | |
11028 | for (i = 0; i < req->n_channels; i++) { | |
11029 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
11030 | goto nla_put_failure; | |
11031 | } | |
11032 | nla_nest_end(msg, nest); | |
11033 | ||
11034 | if (req->ie && | |
11035 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
11036 | goto nla_put_failure; | |
11037 | ||
11038 | if (req->flags && | |
11039 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags)) | |
11040 | goto nla_put_failure; | |
11041 | ||
11042 | return 0; | |
11043 | nla_put_failure: | |
11044 | return -ENOBUFS; | |
11045 | } | |
11046 | ||
11047 | static int nl80211_send_scan_msg(struct sk_buff *msg, | |
11048 | struct cfg80211_registered_device *rdev, | |
11049 | struct wireless_dev *wdev, | |
11050 | u32 portid, u32 seq, int flags, | |
11051 | u32 cmd) | |
11052 | { | |
11053 | void *hdr; | |
11054 | ||
11055 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
11056 | if (!hdr) | |
11057 | return -1; | |
11058 | ||
11059 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11060 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
11061 | wdev->netdev->ifindex)) || | |
11062 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
11063 | goto nla_put_failure; | |
11064 | ||
11065 | /* ignore errors and send incomplete event anyway */ | |
11066 | nl80211_add_scan_req(msg, rdev); | |
11067 | ||
11068 | genlmsg_end(msg, hdr); | |
11069 | return 0; | |
11070 | ||
11071 | nla_put_failure: | |
11072 | genlmsg_cancel(msg, hdr); | |
11073 | return -EMSGSIZE; | |
11074 | } | |
11075 | ||
11076 | static int | |
11077 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
11078 | struct cfg80211_registered_device *rdev, | |
11079 | struct net_device *netdev, | |
11080 | u32 portid, u32 seq, int flags, u32 cmd) | |
11081 | { | |
11082 | void *hdr; | |
11083 | ||
11084 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
11085 | if (!hdr) | |
11086 | return -1; | |
11087 | ||
11088 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11089 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
11090 | goto nla_put_failure; | |
11091 | ||
11092 | genlmsg_end(msg, hdr); | |
11093 | return 0; | |
11094 | ||
11095 | nla_put_failure: | |
11096 | genlmsg_cancel(msg, hdr); | |
11097 | return -EMSGSIZE; | |
11098 | } | |
11099 | ||
11100 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, | |
11101 | struct wireless_dev *wdev) | |
11102 | { | |
11103 | struct sk_buff *msg; | |
11104 | ||
11105 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11106 | if (!msg) | |
11107 | return; | |
11108 | ||
11109 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, | |
11110 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
11111 | nlmsg_free(msg); | |
11112 | return; | |
11113 | } | |
11114 | ||
11115 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11116 | NL80211_MCGRP_SCAN, GFP_KERNEL); | |
11117 | } | |
11118 | ||
11119 | struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev, | |
11120 | struct wireless_dev *wdev, bool aborted) | |
11121 | { | |
11122 | struct sk_buff *msg; | |
11123 | ||
11124 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11125 | if (!msg) | |
11126 | return NULL; | |
11127 | ||
11128 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, | |
11129 | aborted ? NL80211_CMD_SCAN_ABORTED : | |
11130 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
11131 | nlmsg_free(msg); | |
11132 | return NULL; | |
11133 | } | |
11134 | ||
11135 | return msg; | |
11136 | } | |
11137 | ||
11138 | void nl80211_send_scan_result(struct cfg80211_registered_device *rdev, | |
11139 | struct sk_buff *msg) | |
11140 | { | |
11141 | if (!msg) | |
11142 | return; | |
11143 | ||
11144 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11145 | NL80211_MCGRP_SCAN, GFP_KERNEL); | |
11146 | } | |
11147 | ||
11148 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, | |
11149 | struct net_device *netdev) | |
11150 | { | |
11151 | struct sk_buff *msg; | |
11152 | ||
11153 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11154 | if (!msg) | |
11155 | return; | |
11156 | ||
11157 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
11158 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
11159 | nlmsg_free(msg); | |
11160 | return; | |
11161 | } | |
11162 | ||
11163 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11164 | NL80211_MCGRP_SCAN, GFP_KERNEL); | |
11165 | } | |
11166 | ||
11167 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
11168 | struct net_device *netdev, u32 cmd) | |
11169 | { | |
11170 | struct sk_buff *msg; | |
11171 | ||
11172 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11173 | if (!msg) | |
11174 | return; | |
11175 | ||
11176 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
11177 | nlmsg_free(msg); | |
11178 | return; | |
11179 | } | |
11180 | ||
11181 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11182 | NL80211_MCGRP_SCAN, GFP_KERNEL); | |
11183 | } | |
11184 | ||
11185 | static bool nl80211_reg_change_event_fill(struct sk_buff *msg, | |
11186 | struct regulatory_request *request) | |
11187 | { | |
11188 | /* Userspace can always count this one always being set */ | |
11189 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) | |
11190 | goto nla_put_failure; | |
11191 | ||
11192 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
11193 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11194 | NL80211_REGDOM_TYPE_WORLD)) | |
11195 | goto nla_put_failure; | |
11196 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
11197 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11198 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
11199 | goto nla_put_failure; | |
11200 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
11201 | request->intersect) { | |
11202 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11203 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
11204 | goto nla_put_failure; | |
11205 | } else { | |
11206 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11207 | NL80211_REGDOM_TYPE_COUNTRY) || | |
11208 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
11209 | request->alpha2)) | |
11210 | goto nla_put_failure; | |
11211 | } | |
11212 | ||
11213 | if (request->wiphy_idx != WIPHY_IDX_INVALID) { | |
11214 | struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx); | |
11215 | ||
11216 | if (wiphy && | |
11217 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) | |
11218 | goto nla_put_failure; | |
11219 | ||
11220 | if (wiphy && | |
11221 | wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && | |
11222 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
11223 | goto nla_put_failure; | |
11224 | } | |
11225 | ||
11226 | return true; | |
11227 | ||
11228 | nla_put_failure: | |
11229 | return false; | |
11230 | } | |
11231 | ||
11232 | /* | |
11233 | * This can happen on global regulatory changes or device specific settings | |
11234 | * based on custom regulatory domains. | |
11235 | */ | |
11236 | void nl80211_common_reg_change_event(enum nl80211_commands cmd_id, | |
11237 | struct regulatory_request *request) | |
11238 | { | |
11239 | struct sk_buff *msg; | |
11240 | void *hdr; | |
11241 | ||
11242 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11243 | if (!msg) | |
11244 | return; | |
11245 | ||
11246 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id); | |
11247 | if (!hdr) { | |
11248 | nlmsg_free(msg); | |
11249 | return; | |
11250 | } | |
11251 | ||
11252 | if (nl80211_reg_change_event_fill(msg, request) == false) | |
11253 | goto nla_put_failure; | |
11254 | ||
11255 | genlmsg_end(msg, hdr); | |
11256 | ||
11257 | rcu_read_lock(); | |
11258 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, | |
11259 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); | |
11260 | rcu_read_unlock(); | |
11261 | ||
11262 | return; | |
11263 | ||
11264 | nla_put_failure: | |
11265 | genlmsg_cancel(msg, hdr); | |
11266 | nlmsg_free(msg); | |
11267 | } | |
11268 | ||
11269 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, | |
11270 | struct net_device *netdev, | |
11271 | const u8 *buf, size_t len, | |
11272 | enum nl80211_commands cmd, gfp_t gfp, | |
11273 | int uapsd_queues) | |
11274 | { | |
11275 | struct sk_buff *msg; | |
11276 | void *hdr; | |
11277 | ||
11278 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11279 | if (!msg) | |
11280 | return; | |
11281 | ||
11282 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11283 | if (!hdr) { | |
11284 | nlmsg_free(msg); | |
11285 | return; | |
11286 | } | |
11287 | ||
11288 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11289 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11290 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
11291 | goto nla_put_failure; | |
11292 | ||
11293 | if (uapsd_queues >= 0) { | |
11294 | struct nlattr *nla_wmm = | |
11295 | nla_nest_start(msg, NL80211_ATTR_STA_WME); | |
11296 | if (!nla_wmm) | |
11297 | goto nla_put_failure; | |
11298 | ||
11299 | if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES, | |
11300 | uapsd_queues)) | |
11301 | goto nla_put_failure; | |
11302 | ||
11303 | nla_nest_end(msg, nla_wmm); | |
11304 | } | |
11305 | ||
11306 | genlmsg_end(msg, hdr); | |
11307 | ||
11308 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11309 | NL80211_MCGRP_MLME, gfp); | |
11310 | return; | |
11311 | ||
11312 | nla_put_failure: | |
11313 | genlmsg_cancel(msg, hdr); | |
11314 | nlmsg_free(msg); | |
11315 | } | |
11316 | ||
11317 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
11318 | struct net_device *netdev, const u8 *buf, | |
11319 | size_t len, gfp_t gfp) | |
11320 | { | |
11321 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
11322 | NL80211_CMD_AUTHENTICATE, gfp, -1); | |
11323 | } | |
11324 | ||
11325 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
11326 | struct net_device *netdev, const u8 *buf, | |
11327 | size_t len, gfp_t gfp, int uapsd_queues) | |
11328 | { | |
11329 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
11330 | NL80211_CMD_ASSOCIATE, gfp, uapsd_queues); | |
11331 | } | |
11332 | ||
11333 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, | |
11334 | struct net_device *netdev, const u8 *buf, | |
11335 | size_t len, gfp_t gfp) | |
11336 | { | |
11337 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
11338 | NL80211_CMD_DEAUTHENTICATE, gfp, -1); | |
11339 | } | |
11340 | ||
11341 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, | |
11342 | struct net_device *netdev, const u8 *buf, | |
11343 | size_t len, gfp_t gfp) | |
11344 | { | |
11345 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
11346 | NL80211_CMD_DISASSOCIATE, gfp, -1); | |
11347 | } | |
11348 | ||
11349 | void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, | |
11350 | size_t len) | |
11351 | { | |
11352 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11353 | struct wiphy *wiphy = wdev->wiphy; | |
11354 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
11355 | const struct ieee80211_mgmt *mgmt = (void *)buf; | |
11356 | u32 cmd; | |
11357 | ||
11358 | if (WARN_ON(len < 2)) | |
11359 | return; | |
11360 | ||
11361 | if (ieee80211_is_deauth(mgmt->frame_control)) | |
11362 | cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE; | |
11363 | else | |
11364 | cmd = NL80211_CMD_UNPROT_DISASSOCIATE; | |
11365 | ||
11366 | trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); | |
11367 | nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1); | |
11368 | } | |
11369 | EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt); | |
11370 | ||
11371 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, | |
11372 | struct net_device *netdev, int cmd, | |
11373 | const u8 *addr, gfp_t gfp) | |
11374 | { | |
11375 | struct sk_buff *msg; | |
11376 | void *hdr; | |
11377 | ||
11378 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11379 | if (!msg) | |
11380 | return; | |
11381 | ||
11382 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11383 | if (!hdr) { | |
11384 | nlmsg_free(msg); | |
11385 | return; | |
11386 | } | |
11387 | ||
11388 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11389 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11390 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
11391 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
11392 | goto nla_put_failure; | |
11393 | ||
11394 | genlmsg_end(msg, hdr); | |
11395 | ||
11396 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11397 | NL80211_MCGRP_MLME, gfp); | |
11398 | return; | |
11399 | ||
11400 | nla_put_failure: | |
11401 | genlmsg_cancel(msg, hdr); | |
11402 | nlmsg_free(msg); | |
11403 | } | |
11404 | ||
11405 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
11406 | struct net_device *netdev, const u8 *addr, | |
11407 | gfp_t gfp) | |
11408 | { | |
11409 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
11410 | addr, gfp); | |
11411 | } | |
11412 | ||
11413 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
11414 | struct net_device *netdev, const u8 *addr, | |
11415 | gfp_t gfp) | |
11416 | { | |
11417 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, | |
11418 | addr, gfp); | |
11419 | } | |
11420 | ||
11421 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, | |
11422 | struct net_device *netdev, const u8 *bssid, | |
11423 | const u8 *req_ie, size_t req_ie_len, | |
11424 | const u8 *resp_ie, size_t resp_ie_len, | |
11425 | u16 status, gfp_t gfp) | |
11426 | { | |
11427 | struct sk_buff *msg; | |
11428 | void *hdr; | |
11429 | ||
11430 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11431 | if (!msg) | |
11432 | return; | |
11433 | ||
11434 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
11435 | if (!hdr) { | |
11436 | nlmsg_free(msg); | |
11437 | return; | |
11438 | } | |
11439 | ||
11440 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11441 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11442 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
11443 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
11444 | (req_ie && | |
11445 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
11446 | (resp_ie && | |
11447 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
11448 | goto nla_put_failure; | |
11449 | ||
11450 | genlmsg_end(msg, hdr); | |
11451 | ||
11452 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11453 | NL80211_MCGRP_MLME, gfp); | |
11454 | return; | |
11455 | ||
11456 | nla_put_failure: | |
11457 | genlmsg_cancel(msg, hdr); | |
11458 | nlmsg_free(msg); | |
11459 | ||
11460 | } | |
11461 | ||
11462 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
11463 | struct net_device *netdev, const u8 *bssid, | |
11464 | const u8 *req_ie, size_t req_ie_len, | |
11465 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
11466 | { | |
11467 | struct sk_buff *msg; | |
11468 | void *hdr; | |
11469 | ||
11470 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11471 | if (!msg) | |
11472 | return; | |
11473 | ||
11474 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
11475 | if (!hdr) { | |
11476 | nlmsg_free(msg); | |
11477 | return; | |
11478 | } | |
11479 | ||
11480 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11481 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11482 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
11483 | (req_ie && | |
11484 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
11485 | (resp_ie && | |
11486 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
11487 | goto nla_put_failure; | |
11488 | ||
11489 | genlmsg_end(msg, hdr); | |
11490 | ||
11491 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11492 | NL80211_MCGRP_MLME, gfp); | |
11493 | return; | |
11494 | ||
11495 | nla_put_failure: | |
11496 | genlmsg_cancel(msg, hdr); | |
11497 | nlmsg_free(msg); | |
11498 | ||
11499 | } | |
11500 | ||
11501 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
11502 | struct net_device *netdev, u16 reason, | |
11503 | const u8 *ie, size_t ie_len, bool from_ap) | |
11504 | { | |
11505 | struct sk_buff *msg; | |
11506 | void *hdr; | |
11507 | ||
11508 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11509 | if (!msg) | |
11510 | return; | |
11511 | ||
11512 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
11513 | if (!hdr) { | |
11514 | nlmsg_free(msg); | |
11515 | return; | |
11516 | } | |
11517 | ||
11518 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11519 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11520 | (from_ap && reason && | |
11521 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
11522 | (from_ap && | |
11523 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
11524 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
11525 | goto nla_put_failure; | |
11526 | ||
11527 | genlmsg_end(msg, hdr); | |
11528 | ||
11529 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11530 | NL80211_MCGRP_MLME, GFP_KERNEL); | |
11531 | return; | |
11532 | ||
11533 | nla_put_failure: | |
11534 | genlmsg_cancel(msg, hdr); | |
11535 | nlmsg_free(msg); | |
11536 | ||
11537 | } | |
11538 | ||
11539 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, | |
11540 | struct net_device *netdev, const u8 *bssid, | |
11541 | gfp_t gfp) | |
11542 | { | |
11543 | struct sk_buff *msg; | |
11544 | void *hdr; | |
11545 | ||
11546 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11547 | if (!msg) | |
11548 | return; | |
11549 | ||
11550 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
11551 | if (!hdr) { | |
11552 | nlmsg_free(msg); | |
11553 | return; | |
11554 | } | |
11555 | ||
11556 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11557 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11558 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
11559 | goto nla_put_failure; | |
11560 | ||
11561 | genlmsg_end(msg, hdr); | |
11562 | ||
11563 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11564 | NL80211_MCGRP_MLME, gfp); | |
11565 | return; | |
11566 | ||
11567 | nla_put_failure: | |
11568 | genlmsg_cancel(msg, hdr); | |
11569 | nlmsg_free(msg); | |
11570 | } | |
11571 | ||
11572 | void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, | |
11573 | const u8* ie, u8 ie_len, gfp_t gfp) | |
11574 | { | |
11575 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11576 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
11577 | struct sk_buff *msg; | |
11578 | void *hdr; | |
11579 | ||
11580 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT)) | |
11581 | return; | |
11582 | ||
11583 | trace_cfg80211_notify_new_peer_candidate(dev, addr); | |
11584 | ||
11585 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11586 | if (!msg) | |
11587 | return; | |
11588 | ||
11589 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
11590 | if (!hdr) { | |
11591 | nlmsg_free(msg); | |
11592 | return; | |
11593 | } | |
11594 | ||
11595 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11596 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
11597 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
11598 | (ie_len && ie && | |
11599 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
11600 | goto nla_put_failure; | |
11601 | ||
11602 | genlmsg_end(msg, hdr); | |
11603 | ||
11604 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11605 | NL80211_MCGRP_MLME, gfp); | |
11606 | return; | |
11607 | ||
11608 | nla_put_failure: | |
11609 | genlmsg_cancel(msg, hdr); | |
11610 | nlmsg_free(msg); | |
11611 | } | |
11612 | EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate); | |
11613 | ||
11614 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, | |
11615 | struct net_device *netdev, const u8 *addr, | |
11616 | enum nl80211_key_type key_type, int key_id, | |
11617 | const u8 *tsc, gfp_t gfp) | |
11618 | { | |
11619 | struct sk_buff *msg; | |
11620 | void *hdr; | |
11621 | ||
11622 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11623 | if (!msg) | |
11624 | return; | |
11625 | ||
11626 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
11627 | if (!hdr) { | |
11628 | nlmsg_free(msg); | |
11629 | return; | |
11630 | } | |
11631 | ||
11632 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11633 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11634 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
11635 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
11636 | (key_id != -1 && | |
11637 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
11638 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
11639 | goto nla_put_failure; | |
11640 | ||
11641 | genlmsg_end(msg, hdr); | |
11642 | ||
11643 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11644 | NL80211_MCGRP_MLME, gfp); | |
11645 | return; | |
11646 | ||
11647 | nla_put_failure: | |
11648 | genlmsg_cancel(msg, hdr); | |
11649 | nlmsg_free(msg); | |
11650 | } | |
11651 | ||
11652 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, | |
11653 | struct ieee80211_channel *channel_before, | |
11654 | struct ieee80211_channel *channel_after) | |
11655 | { | |
11656 | struct sk_buff *msg; | |
11657 | void *hdr; | |
11658 | struct nlattr *nl_freq; | |
11659 | ||
11660 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); | |
11661 | if (!msg) | |
11662 | return; | |
11663 | ||
11664 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
11665 | if (!hdr) { | |
11666 | nlmsg_free(msg); | |
11667 | return; | |
11668 | } | |
11669 | ||
11670 | /* | |
11671 | * Since we are applying the beacon hint to a wiphy we know its | |
11672 | * wiphy_idx is valid | |
11673 | */ | |
11674 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
11675 | goto nla_put_failure; | |
11676 | ||
11677 | /* Before */ | |
11678 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
11679 | if (!nl_freq) | |
11680 | goto nla_put_failure; | |
11681 | if (nl80211_msg_put_channel(msg, channel_before, false)) | |
11682 | goto nla_put_failure; | |
11683 | nla_nest_end(msg, nl_freq); | |
11684 | ||
11685 | /* After */ | |
11686 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
11687 | if (!nl_freq) | |
11688 | goto nla_put_failure; | |
11689 | if (nl80211_msg_put_channel(msg, channel_after, false)) | |
11690 | goto nla_put_failure; | |
11691 | nla_nest_end(msg, nl_freq); | |
11692 | ||
11693 | genlmsg_end(msg, hdr); | |
11694 | ||
11695 | rcu_read_lock(); | |
11696 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, | |
11697 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); | |
11698 | rcu_read_unlock(); | |
11699 | ||
11700 | return; | |
11701 | ||
11702 | nla_put_failure: | |
11703 | genlmsg_cancel(msg, hdr); | |
11704 | nlmsg_free(msg); | |
11705 | } | |
11706 | ||
11707 | static void nl80211_send_remain_on_chan_event( | |
11708 | int cmd, struct cfg80211_registered_device *rdev, | |
11709 | struct wireless_dev *wdev, u64 cookie, | |
11710 | struct ieee80211_channel *chan, | |
11711 | unsigned int duration, gfp_t gfp) | |
11712 | { | |
11713 | struct sk_buff *msg; | |
11714 | void *hdr; | |
11715 | ||
11716 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11717 | if (!msg) | |
11718 | return; | |
11719 | ||
11720 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11721 | if (!hdr) { | |
11722 | nlmsg_free(msg); | |
11723 | return; | |
11724 | } | |
11725 | ||
11726 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11727 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
11728 | wdev->netdev->ifindex)) || | |
11729 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || | |
11730 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || | |
11731 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
11732 | NL80211_CHAN_NO_HT) || | |
11733 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
11734 | goto nla_put_failure; | |
11735 | ||
11736 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && | |
11737 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
11738 | goto nla_put_failure; | |
11739 | ||
11740 | genlmsg_end(msg, hdr); | |
11741 | ||
11742 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11743 | NL80211_MCGRP_MLME, gfp); | |
11744 | return; | |
11745 | ||
11746 | nla_put_failure: | |
11747 | genlmsg_cancel(msg, hdr); | |
11748 | nlmsg_free(msg); | |
11749 | } | |
11750 | ||
11751 | void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, | |
11752 | struct ieee80211_channel *chan, | |
11753 | unsigned int duration, gfp_t gfp) | |
11754 | { | |
11755 | struct wiphy *wiphy = wdev->wiphy; | |
11756 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
11757 | ||
11758 | trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration); | |
11759 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
11760 | rdev, wdev, cookie, chan, | |
11761 | duration, gfp); | |
11762 | } | |
11763 | EXPORT_SYMBOL(cfg80211_ready_on_channel); | |
11764 | ||
11765 | void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, | |
11766 | struct ieee80211_channel *chan, | |
11767 | gfp_t gfp) | |
11768 | { | |
11769 | struct wiphy *wiphy = wdev->wiphy; | |
11770 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
11771 | ||
11772 | trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan); | |
11773 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
11774 | rdev, wdev, cookie, chan, 0, gfp); | |
11775 | } | |
11776 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); | |
11777 | ||
11778 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, | |
11779 | struct station_info *sinfo, gfp_t gfp) | |
11780 | { | |
11781 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
11782 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
11783 | struct sk_buff *msg; | |
11784 | ||
11785 | trace_cfg80211_new_sta(dev, mac_addr, sinfo); | |
11786 | ||
11787 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11788 | if (!msg) | |
11789 | return; | |
11790 | ||
11791 | if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0, | |
11792 | rdev, dev, mac_addr, sinfo) < 0) { | |
11793 | nlmsg_free(msg); | |
11794 | return; | |
11795 | } | |
11796 | ||
11797 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11798 | NL80211_MCGRP_MLME, gfp); | |
11799 | } | |
11800 | EXPORT_SYMBOL(cfg80211_new_sta); | |
11801 | ||
11802 | void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr, | |
11803 | struct station_info *sinfo, gfp_t gfp) | |
11804 | { | |
11805 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
11806 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
11807 | struct sk_buff *msg; | |
11808 | struct station_info empty_sinfo = {}; | |
11809 | ||
11810 | if (!sinfo) | |
11811 | sinfo = &empty_sinfo; | |
11812 | ||
11813 | trace_cfg80211_del_sta(dev, mac_addr); | |
11814 | ||
11815 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11816 | if (!msg) | |
11817 | return; | |
11818 | ||
11819 | if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0, | |
11820 | rdev, dev, mac_addr, sinfo) < 0) { | |
11821 | nlmsg_free(msg); | |
11822 | return; | |
11823 | } | |
11824 | ||
11825 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11826 | NL80211_MCGRP_MLME, gfp); | |
11827 | } | |
11828 | EXPORT_SYMBOL(cfg80211_del_sta_sinfo); | |
11829 | ||
11830 | void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, | |
11831 | enum nl80211_connect_failed_reason reason, | |
11832 | gfp_t gfp) | |
11833 | { | |
11834 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
11835 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
11836 | struct sk_buff *msg; | |
11837 | void *hdr; | |
11838 | ||
11839 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
11840 | if (!msg) | |
11841 | return; | |
11842 | ||
11843 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
11844 | if (!hdr) { | |
11845 | nlmsg_free(msg); | |
11846 | return; | |
11847 | } | |
11848 | ||
11849 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
11850 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
11851 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
11852 | goto nla_put_failure; | |
11853 | ||
11854 | genlmsg_end(msg, hdr); | |
11855 | ||
11856 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
11857 | NL80211_MCGRP_MLME, gfp); | |
11858 | return; | |
11859 | ||
11860 | nla_put_failure: | |
11861 | genlmsg_cancel(msg, hdr); | |
11862 | nlmsg_free(msg); | |
11863 | } | |
11864 | EXPORT_SYMBOL(cfg80211_conn_failed); | |
11865 | ||
11866 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, | |
11867 | const u8 *addr, gfp_t gfp) | |
11868 | { | |
11869 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11870 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
11871 | struct sk_buff *msg; | |
11872 | void *hdr; | |
11873 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); | |
11874 | ||
11875 | if (!nlportid) | |
11876 | return false; | |
11877 | ||
11878 | msg = nlmsg_new(100, gfp); | |
11879 | if (!msg) | |
11880 | return true; | |
11881 | ||
11882 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11883 | if (!hdr) { | |
11884 | nlmsg_free(msg); | |
11885 | return true; | |
11886 | } | |
11887 | ||
11888 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11889 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
11890 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
11891 | goto nla_put_failure; | |
11892 | ||
11893 | genlmsg_end(msg, hdr); | |
11894 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
11895 | return true; | |
11896 | ||
11897 | nla_put_failure: | |
11898 | genlmsg_cancel(msg, hdr); | |
11899 | nlmsg_free(msg); | |
11900 | return true; | |
11901 | } | |
11902 | ||
11903 | bool cfg80211_rx_spurious_frame(struct net_device *dev, | |
11904 | const u8 *addr, gfp_t gfp) | |
11905 | { | |
11906 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11907 | bool ret; | |
11908 | ||
11909 | trace_cfg80211_rx_spurious_frame(dev, addr); | |
11910 | ||
11911 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
11912 | wdev->iftype != NL80211_IFTYPE_P2P_GO)) { | |
11913 | trace_cfg80211_return_bool(false); | |
11914 | return false; | |
11915 | } | |
11916 | ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
11917 | addr, gfp); | |
11918 | trace_cfg80211_return_bool(ret); | |
11919 | return ret; | |
11920 | } | |
11921 | EXPORT_SYMBOL(cfg80211_rx_spurious_frame); | |
11922 | ||
11923 | bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, | |
11924 | const u8 *addr, gfp_t gfp) | |
11925 | { | |
11926 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11927 | bool ret; | |
11928 | ||
11929 | trace_cfg80211_rx_unexpected_4addr_frame(dev, addr); | |
11930 | ||
11931 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
11932 | wdev->iftype != NL80211_IFTYPE_P2P_GO && | |
11933 | wdev->iftype != NL80211_IFTYPE_AP_VLAN)) { | |
11934 | trace_cfg80211_return_bool(false); | |
11935 | return false; | |
11936 | } | |
11937 | ret = __nl80211_unexpected_frame(dev, | |
11938 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
11939 | addr, gfp); | |
11940 | trace_cfg80211_return_bool(ret); | |
11941 | return ret; | |
11942 | } | |
11943 | EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame); | |
11944 | ||
11945 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, | |
11946 | struct wireless_dev *wdev, u32 nlportid, | |
11947 | int freq, int sig_dbm, | |
11948 | const u8 *buf, size_t len, u32 flags, gfp_t gfp) | |
11949 | { | |
11950 | struct net_device *netdev = wdev->netdev; | |
11951 | struct sk_buff *msg; | |
11952 | void *hdr; | |
11953 | ||
11954 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11955 | if (!msg) | |
11956 | return -ENOMEM; | |
11957 | ||
11958 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); | |
11959 | if (!hdr) { | |
11960 | nlmsg_free(msg); | |
11961 | return -ENOMEM; | |
11962 | } | |
11963 | ||
11964 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11965 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
11966 | netdev->ifindex)) || | |
11967 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || | |
11968 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || | |
11969 | (sig_dbm && | |
11970 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
11971 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || | |
11972 | (flags && | |
11973 | nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags))) | |
11974 | goto nla_put_failure; | |
11975 | ||
11976 | genlmsg_end(msg, hdr); | |
11977 | ||
11978 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
11979 | ||
11980 | nla_put_failure: | |
11981 | genlmsg_cancel(msg, hdr); | |
11982 | nlmsg_free(msg); | |
11983 | return -ENOBUFS; | |
11984 | } | |
11985 | ||
11986 | void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, | |
11987 | const u8 *buf, size_t len, bool ack, gfp_t gfp) | |
11988 | { | |
11989 | struct wiphy *wiphy = wdev->wiphy; | |
11990 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
11991 | struct net_device *netdev = wdev->netdev; | |
11992 | struct sk_buff *msg; | |
11993 | void *hdr; | |
11994 | ||
11995 | trace_cfg80211_mgmt_tx_status(wdev, cookie, ack); | |
11996 | ||
11997 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11998 | if (!msg) | |
11999 | return; | |
12000 | ||
12001 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); | |
12002 | if (!hdr) { | |
12003 | nlmsg_free(msg); | |
12004 | return; | |
12005 | } | |
12006 | ||
12007 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12008 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
12009 | netdev->ifindex)) || | |
12010 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || | |
12011 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || | |
12012 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
12013 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
12014 | goto nla_put_failure; | |
12015 | ||
12016 | genlmsg_end(msg, hdr); | |
12017 | ||
12018 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12019 | NL80211_MCGRP_MLME, gfp); | |
12020 | return; | |
12021 | ||
12022 | nla_put_failure: | |
12023 | genlmsg_cancel(msg, hdr); | |
12024 | nlmsg_free(msg); | |
12025 | } | |
12026 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); | |
12027 | ||
12028 | static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev, | |
12029 | const char *mac, gfp_t gfp) | |
12030 | { | |
12031 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12032 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
12033 | struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12034 | void **cb; | |
12035 | ||
12036 | if (!msg) | |
12037 | return NULL; | |
12038 | ||
12039 | cb = (void **)msg->cb; | |
12040 | ||
12041 | cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
12042 | if (!cb[0]) { | |
12043 | nlmsg_free(msg); | |
12044 | return NULL; | |
12045 | } | |
12046 | ||
12047 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12048 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) | |
12049 | goto nla_put_failure; | |
12050 | ||
12051 | if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac)) | |
12052 | goto nla_put_failure; | |
12053 | ||
12054 | cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM); | |
12055 | if (!cb[1]) | |
12056 | goto nla_put_failure; | |
12057 | ||
12058 | cb[2] = rdev; | |
12059 | ||
12060 | return msg; | |
12061 | nla_put_failure: | |
12062 | nlmsg_free(msg); | |
12063 | return NULL; | |
12064 | } | |
12065 | ||
12066 | static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp) | |
12067 | { | |
12068 | void **cb = (void **)msg->cb; | |
12069 | struct cfg80211_registered_device *rdev = cb[2]; | |
12070 | ||
12071 | nla_nest_end(msg, cb[1]); | |
12072 | genlmsg_end(msg, cb[0]); | |
12073 | ||
12074 | memset(msg->cb, 0, sizeof(msg->cb)); | |
12075 | ||
12076 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12077 | NL80211_MCGRP_MLME, gfp); | |
12078 | } | |
12079 | ||
12080 | void cfg80211_cqm_rssi_notify(struct net_device *dev, | |
12081 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
12082 | gfp_t gfp) | |
12083 | { | |
12084 | struct sk_buff *msg; | |
12085 | ||
12086 | trace_cfg80211_cqm_rssi_notify(dev, rssi_event); | |
12087 | ||
12088 | if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW && | |
12089 | rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH)) | |
12090 | return; | |
12091 | ||
12092 | msg = cfg80211_prepare_cqm(dev, NULL, gfp); | |
12093 | if (!msg) | |
12094 | return; | |
12095 | ||
12096 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
12097 | rssi_event)) | |
12098 | goto nla_put_failure; | |
12099 | ||
12100 | cfg80211_send_cqm(msg, gfp); | |
12101 | ||
12102 | return; | |
12103 | ||
12104 | nla_put_failure: | |
12105 | nlmsg_free(msg); | |
12106 | } | |
12107 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); | |
12108 | ||
12109 | void cfg80211_cqm_txe_notify(struct net_device *dev, | |
12110 | const u8 *peer, u32 num_packets, | |
12111 | u32 rate, u32 intvl, gfp_t gfp) | |
12112 | { | |
12113 | struct sk_buff *msg; | |
12114 | ||
12115 | msg = cfg80211_prepare_cqm(dev, peer, gfp); | |
12116 | if (!msg) | |
12117 | return; | |
12118 | ||
12119 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
12120 | goto nla_put_failure; | |
12121 | ||
12122 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
12123 | goto nla_put_failure; | |
12124 | ||
12125 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
12126 | goto nla_put_failure; | |
12127 | ||
12128 | cfg80211_send_cqm(msg, gfp); | |
12129 | return; | |
12130 | ||
12131 | nla_put_failure: | |
12132 | nlmsg_free(msg); | |
12133 | } | |
12134 | EXPORT_SYMBOL(cfg80211_cqm_txe_notify); | |
12135 | ||
12136 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, | |
12137 | const u8 *peer, u32 num_packets, gfp_t gfp) | |
12138 | { | |
12139 | struct sk_buff *msg; | |
12140 | ||
12141 | trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); | |
12142 | ||
12143 | msg = cfg80211_prepare_cqm(dev, peer, gfp); | |
12144 | if (!msg) | |
12145 | return; | |
12146 | ||
12147 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) | |
12148 | goto nla_put_failure; | |
12149 | ||
12150 | cfg80211_send_cqm(msg, gfp); | |
12151 | return; | |
12152 | ||
12153 | nla_put_failure: | |
12154 | nlmsg_free(msg); | |
12155 | } | |
12156 | EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); | |
12157 | ||
12158 | void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp) | |
12159 | { | |
12160 | struct sk_buff *msg; | |
12161 | ||
12162 | msg = cfg80211_prepare_cqm(dev, NULL, gfp); | |
12163 | if (!msg) | |
12164 | return; | |
12165 | ||
12166 | if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT)) | |
12167 | goto nla_put_failure; | |
12168 | ||
12169 | cfg80211_send_cqm(msg, gfp); | |
12170 | return; | |
12171 | ||
12172 | nla_put_failure: | |
12173 | nlmsg_free(msg); | |
12174 | } | |
12175 | EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify); | |
12176 | ||
12177 | static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, | |
12178 | struct net_device *netdev, const u8 *bssid, | |
12179 | const u8 *replay_ctr, gfp_t gfp) | |
12180 | { | |
12181 | struct sk_buff *msg; | |
12182 | struct nlattr *rekey_attr; | |
12183 | void *hdr; | |
12184 | ||
12185 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12186 | if (!msg) | |
12187 | return; | |
12188 | ||
12189 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
12190 | if (!hdr) { | |
12191 | nlmsg_free(msg); | |
12192 | return; | |
12193 | } | |
12194 | ||
12195 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12196 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12197 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
12198 | goto nla_put_failure; | |
12199 | ||
12200 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
12201 | if (!rekey_attr) | |
12202 | goto nla_put_failure; | |
12203 | ||
12204 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, | |
12205 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
12206 | goto nla_put_failure; | |
12207 | ||
12208 | nla_nest_end(msg, rekey_attr); | |
12209 | ||
12210 | genlmsg_end(msg, hdr); | |
12211 | ||
12212 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12213 | NL80211_MCGRP_MLME, gfp); | |
12214 | return; | |
12215 | ||
12216 | nla_put_failure: | |
12217 | genlmsg_cancel(msg, hdr); | |
12218 | nlmsg_free(msg); | |
12219 | } | |
12220 | ||
12221 | void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, | |
12222 | const u8 *replay_ctr, gfp_t gfp) | |
12223 | { | |
12224 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12225 | struct wiphy *wiphy = wdev->wiphy; | |
12226 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12227 | ||
12228 | trace_cfg80211_gtk_rekey_notify(dev, bssid); | |
12229 | nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); | |
12230 | } | |
12231 | EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); | |
12232 | ||
12233 | static void | |
12234 | nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, | |
12235 | struct net_device *netdev, int index, | |
12236 | const u8 *bssid, bool preauth, gfp_t gfp) | |
12237 | { | |
12238 | struct sk_buff *msg; | |
12239 | struct nlattr *attr; | |
12240 | void *hdr; | |
12241 | ||
12242 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12243 | if (!msg) | |
12244 | return; | |
12245 | ||
12246 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
12247 | if (!hdr) { | |
12248 | nlmsg_free(msg); | |
12249 | return; | |
12250 | } | |
12251 | ||
12252 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12253 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
12254 | goto nla_put_failure; | |
12255 | ||
12256 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
12257 | if (!attr) | |
12258 | goto nla_put_failure; | |
12259 | ||
12260 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || | |
12261 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
12262 | (preauth && | |
12263 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
12264 | goto nla_put_failure; | |
12265 | ||
12266 | nla_nest_end(msg, attr); | |
12267 | ||
12268 | genlmsg_end(msg, hdr); | |
12269 | ||
12270 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12271 | NL80211_MCGRP_MLME, gfp); | |
12272 | return; | |
12273 | ||
12274 | nla_put_failure: | |
12275 | genlmsg_cancel(msg, hdr); | |
12276 | nlmsg_free(msg); | |
12277 | } | |
12278 | ||
12279 | void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, | |
12280 | const u8 *bssid, bool preauth, gfp_t gfp) | |
12281 | { | |
12282 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12283 | struct wiphy *wiphy = wdev->wiphy; | |
12284 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12285 | ||
12286 | trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth); | |
12287 | nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp); | |
12288 | } | |
12289 | EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify); | |
12290 | ||
12291 | static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, | |
12292 | struct net_device *netdev, | |
12293 | struct cfg80211_chan_def *chandef, | |
12294 | gfp_t gfp, | |
12295 | enum nl80211_commands notif, | |
12296 | u8 count) | |
12297 | { | |
12298 | struct sk_buff *msg; | |
12299 | void *hdr; | |
12300 | ||
12301 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12302 | if (!msg) | |
12303 | return; | |
12304 | ||
12305 | hdr = nl80211hdr_put(msg, 0, 0, 0, notif); | |
12306 | if (!hdr) { | |
12307 | nlmsg_free(msg); | |
12308 | return; | |
12309 | } | |
12310 | ||
12311 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
12312 | goto nla_put_failure; | |
12313 | ||
12314 | if (nl80211_send_chandef(msg, chandef)) | |
12315 | goto nla_put_failure; | |
12316 | ||
12317 | if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) && | |
12318 | (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count))) | |
12319 | goto nla_put_failure; | |
12320 | ||
12321 | genlmsg_end(msg, hdr); | |
12322 | ||
12323 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12324 | NL80211_MCGRP_MLME, gfp); | |
12325 | return; | |
12326 | ||
12327 | nla_put_failure: | |
12328 | genlmsg_cancel(msg, hdr); | |
12329 | nlmsg_free(msg); | |
12330 | } | |
12331 | ||
12332 | void cfg80211_ch_switch_notify(struct net_device *dev, | |
12333 | struct cfg80211_chan_def *chandef) | |
12334 | { | |
12335 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12336 | struct wiphy *wiphy = wdev->wiphy; | |
12337 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12338 | ||
12339 | ASSERT_WDEV_LOCK(wdev); | |
12340 | ||
12341 | trace_cfg80211_ch_switch_notify(dev, chandef); | |
12342 | ||
12343 | wdev->chandef = *chandef; | |
12344 | wdev->preset_chandef = *chandef; | |
12345 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, | |
12346 | NL80211_CMD_CH_SWITCH_NOTIFY, 0); | |
12347 | } | |
12348 | EXPORT_SYMBOL(cfg80211_ch_switch_notify); | |
12349 | ||
12350 | void cfg80211_ch_switch_started_notify(struct net_device *dev, | |
12351 | struct cfg80211_chan_def *chandef, | |
12352 | u8 count) | |
12353 | { | |
12354 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12355 | struct wiphy *wiphy = wdev->wiphy; | |
12356 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12357 | ||
12358 | trace_cfg80211_ch_switch_started_notify(dev, chandef); | |
12359 | ||
12360 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, | |
12361 | NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count); | |
12362 | } | |
12363 | EXPORT_SYMBOL(cfg80211_ch_switch_started_notify); | |
12364 | ||
12365 | void | |
12366 | nl80211_radar_notify(struct cfg80211_registered_device *rdev, | |
12367 | const struct cfg80211_chan_def *chandef, | |
12368 | enum nl80211_radar_event event, | |
12369 | struct net_device *netdev, gfp_t gfp) | |
12370 | { | |
12371 | struct sk_buff *msg; | |
12372 | void *hdr; | |
12373 | ||
12374 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12375 | if (!msg) | |
12376 | return; | |
12377 | ||
12378 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT); | |
12379 | if (!hdr) { | |
12380 | nlmsg_free(msg); | |
12381 | return; | |
12382 | } | |
12383 | ||
12384 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
12385 | goto nla_put_failure; | |
12386 | ||
12387 | /* NOP and radar events don't need a netdev parameter */ | |
12388 | if (netdev) { | |
12389 | struct wireless_dev *wdev = netdev->ieee80211_ptr; | |
12390 | ||
12391 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12392 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
12393 | goto nla_put_failure; | |
12394 | } | |
12395 | ||
12396 | if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event)) | |
12397 | goto nla_put_failure; | |
12398 | ||
12399 | if (nl80211_send_chandef(msg, chandef)) | |
12400 | goto nla_put_failure; | |
12401 | ||
12402 | genlmsg_end(msg, hdr); | |
12403 | ||
12404 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12405 | NL80211_MCGRP_MLME, gfp); | |
12406 | return; | |
12407 | ||
12408 | nla_put_failure: | |
12409 | genlmsg_cancel(msg, hdr); | |
12410 | nlmsg_free(msg); | |
12411 | } | |
12412 | ||
12413 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, | |
12414 | u64 cookie, bool acked, gfp_t gfp) | |
12415 | { | |
12416 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12417 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
12418 | struct sk_buff *msg; | |
12419 | void *hdr; | |
12420 | ||
12421 | trace_cfg80211_probe_status(dev, addr, cookie, acked); | |
12422 | ||
12423 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12424 | ||
12425 | if (!msg) | |
12426 | return; | |
12427 | ||
12428 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
12429 | if (!hdr) { | |
12430 | nlmsg_free(msg); | |
12431 | return; | |
12432 | } | |
12433 | ||
12434 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12435 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12436 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
12437 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
12438 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
12439 | goto nla_put_failure; | |
12440 | ||
12441 | genlmsg_end(msg, hdr); | |
12442 | ||
12443 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12444 | NL80211_MCGRP_MLME, gfp); | |
12445 | return; | |
12446 | ||
12447 | nla_put_failure: | |
12448 | genlmsg_cancel(msg, hdr); | |
12449 | nlmsg_free(msg); | |
12450 | } | |
12451 | EXPORT_SYMBOL(cfg80211_probe_status); | |
12452 | ||
12453 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, | |
12454 | const u8 *frame, size_t len, | |
12455 | int freq, int sig_dbm) | |
12456 | { | |
12457 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12458 | struct sk_buff *msg; | |
12459 | void *hdr; | |
12460 | struct cfg80211_beacon_registration *reg; | |
12461 | ||
12462 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); | |
12463 | ||
12464 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
12465 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
12466 | msg = nlmsg_new(len + 100, GFP_ATOMIC); | |
12467 | if (!msg) { | |
12468 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
12469 | return; | |
12470 | } | |
12471 | ||
12472 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); | |
12473 | if (!hdr) | |
12474 | goto nla_put_failure; | |
12475 | ||
12476 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12477 | (freq && | |
12478 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
12479 | (sig_dbm && | |
12480 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
12481 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
12482 | goto nla_put_failure; | |
12483 | ||
12484 | genlmsg_end(msg, hdr); | |
12485 | ||
12486 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid); | |
12487 | } | |
12488 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
12489 | return; | |
12490 | ||
12491 | nla_put_failure: | |
12492 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
12493 | if (hdr) | |
12494 | genlmsg_cancel(msg, hdr); | |
12495 | nlmsg_free(msg); | |
12496 | } | |
12497 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
12498 | ||
12499 | #ifdef CONFIG_PM | |
12500 | static int cfg80211_net_detect_results(struct sk_buff *msg, | |
12501 | struct cfg80211_wowlan_wakeup *wakeup) | |
12502 | { | |
12503 | struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect; | |
12504 | struct nlattr *nl_results, *nl_match, *nl_freqs; | |
12505 | int i, j; | |
12506 | ||
12507 | nl_results = nla_nest_start( | |
12508 | msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS); | |
12509 | if (!nl_results) | |
12510 | return -EMSGSIZE; | |
12511 | ||
12512 | for (i = 0; i < nd->n_matches; i++) { | |
12513 | struct cfg80211_wowlan_nd_match *match = nd->matches[i]; | |
12514 | ||
12515 | nl_match = nla_nest_start(msg, i); | |
12516 | if (!nl_match) | |
12517 | break; | |
12518 | ||
12519 | /* The SSID attribute is optional in nl80211, but for | |
12520 | * simplicity reasons it's always present in the | |
12521 | * cfg80211 structure. If a driver can't pass the | |
12522 | * SSID, that needs to be changed. A zero length SSID | |
12523 | * is still a valid SSID (wildcard), so it cannot be | |
12524 | * used for this purpose. | |
12525 | */ | |
12526 | if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len, | |
12527 | match->ssid.ssid)) { | |
12528 | nla_nest_cancel(msg, nl_match); | |
12529 | goto out; | |
12530 | } | |
12531 | ||
12532 | if (match->n_channels) { | |
12533 | nl_freqs = nla_nest_start( | |
12534 | msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
12535 | if (!nl_freqs) { | |
12536 | nla_nest_cancel(msg, nl_match); | |
12537 | goto out; | |
12538 | } | |
12539 | ||
12540 | for (j = 0; j < match->n_channels; j++) { | |
12541 | if (nla_put_u32(msg, j, match->channels[j])) { | |
12542 | nla_nest_cancel(msg, nl_freqs); | |
12543 | nla_nest_cancel(msg, nl_match); | |
12544 | goto out; | |
12545 | } | |
12546 | } | |
12547 | ||
12548 | nla_nest_end(msg, nl_freqs); | |
12549 | } | |
12550 | ||
12551 | nla_nest_end(msg, nl_match); | |
12552 | } | |
12553 | ||
12554 | out: | |
12555 | nla_nest_end(msg, nl_results); | |
12556 | return 0; | |
12557 | } | |
12558 | ||
12559 | void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, | |
12560 | struct cfg80211_wowlan_wakeup *wakeup, | |
12561 | gfp_t gfp) | |
12562 | { | |
12563 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
12564 | struct sk_buff *msg; | |
12565 | void *hdr; | |
12566 | int size = 200; | |
12567 | ||
12568 | trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup); | |
12569 | ||
12570 | if (wakeup) | |
12571 | size += wakeup->packet_present_len; | |
12572 | ||
12573 | msg = nlmsg_new(size, gfp); | |
12574 | if (!msg) | |
12575 | return; | |
12576 | ||
12577 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN); | |
12578 | if (!hdr) | |
12579 | goto free_msg; | |
12580 | ||
12581 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12582 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
12583 | goto free_msg; | |
12584 | ||
12585 | if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
12586 | wdev->netdev->ifindex)) | |
12587 | goto free_msg; | |
12588 | ||
12589 | if (wakeup) { | |
12590 | struct nlattr *reasons; | |
12591 | ||
12592 | reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
12593 | if (!reasons) | |
12594 | goto free_msg; | |
12595 | ||
12596 | if (wakeup->disconnect && | |
12597 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) | |
12598 | goto free_msg; | |
12599 | if (wakeup->magic_pkt && | |
12600 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) | |
12601 | goto free_msg; | |
12602 | if (wakeup->gtk_rekey_failure && | |
12603 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) | |
12604 | goto free_msg; | |
12605 | if (wakeup->eap_identity_req && | |
12606 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) | |
12607 | goto free_msg; | |
12608 | if (wakeup->four_way_handshake && | |
12609 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) | |
12610 | goto free_msg; | |
12611 | if (wakeup->rfkill_release && | |
12612 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)) | |
12613 | goto free_msg; | |
12614 | ||
12615 | if (wakeup->pattern_idx >= 0 && | |
12616 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
12617 | wakeup->pattern_idx)) | |
12618 | goto free_msg; | |
12619 | ||
12620 | if (wakeup->tcp_match && | |
12621 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH)) | |
12622 | goto free_msg; | |
12623 | ||
12624 | if (wakeup->tcp_connlost && | |
12625 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST)) | |
12626 | goto free_msg; | |
12627 | ||
12628 | if (wakeup->tcp_nomoretokens && | |
12629 | nla_put_flag(msg, | |
12630 | NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS)) | |
12631 | goto free_msg; | |
12632 | ||
12633 | if (wakeup->packet) { | |
12634 | u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; | |
12635 | u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; | |
12636 | ||
12637 | if (!wakeup->packet_80211) { | |
12638 | pkt_attr = | |
12639 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023; | |
12640 | len_attr = | |
12641 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN; | |
12642 | } | |
12643 | ||
12644 | if (wakeup->packet_len && | |
12645 | nla_put_u32(msg, len_attr, wakeup->packet_len)) | |
12646 | goto free_msg; | |
12647 | ||
12648 | if (nla_put(msg, pkt_attr, wakeup->packet_present_len, | |
12649 | wakeup->packet)) | |
12650 | goto free_msg; | |
12651 | } | |
12652 | ||
12653 | if (wakeup->net_detect && | |
12654 | cfg80211_net_detect_results(msg, wakeup)) | |
12655 | goto free_msg; | |
12656 | ||
12657 | nla_nest_end(msg, reasons); | |
12658 | } | |
12659 | ||
12660 | genlmsg_end(msg, hdr); | |
12661 | ||
12662 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12663 | NL80211_MCGRP_MLME, gfp); | |
12664 | return; | |
12665 | ||
12666 | free_msg: | |
12667 | nlmsg_free(msg); | |
12668 | } | |
12669 | EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup); | |
12670 | #endif | |
12671 | ||
12672 | void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, | |
12673 | enum nl80211_tdls_operation oper, | |
12674 | u16 reason_code, gfp_t gfp) | |
12675 | { | |
12676 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12677 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
12678 | struct sk_buff *msg; | |
12679 | void *hdr; | |
12680 | ||
12681 | trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper, | |
12682 | reason_code); | |
12683 | ||
12684 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12685 | if (!msg) | |
12686 | return; | |
12687 | ||
12688 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER); | |
12689 | if (!hdr) { | |
12690 | nlmsg_free(msg); | |
12691 | return; | |
12692 | } | |
12693 | ||
12694 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12695 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12696 | nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) || | |
12697 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) || | |
12698 | (reason_code > 0 && | |
12699 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) | |
12700 | goto nla_put_failure; | |
12701 | ||
12702 | genlmsg_end(msg, hdr); | |
12703 | ||
12704 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12705 | NL80211_MCGRP_MLME, gfp); | |
12706 | return; | |
12707 | ||
12708 | nla_put_failure: | |
12709 | genlmsg_cancel(msg, hdr); | |
12710 | nlmsg_free(msg); | |
12711 | } | |
12712 | EXPORT_SYMBOL(cfg80211_tdls_oper_request); | |
12713 | ||
12714 | static int nl80211_netlink_notify(struct notifier_block * nb, | |
12715 | unsigned long state, | |
12716 | void *_notify) | |
12717 | { | |
12718 | struct netlink_notify *notify = _notify; | |
12719 | struct cfg80211_registered_device *rdev; | |
12720 | struct wireless_dev *wdev; | |
12721 | struct cfg80211_beacon_registration *reg, *tmp; | |
12722 | ||
12723 | if (state != NETLINK_URELEASE) | |
12724 | return NOTIFY_DONE; | |
12725 | ||
12726 | rcu_read_lock(); | |
12727 | ||
12728 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { | |
12729 | bool schedule_destroy_work = false; | |
12730 | bool schedule_scan_stop = false; | |
12731 | struct cfg80211_sched_scan_request *sched_scan_req = | |
12732 | rcu_dereference(rdev->sched_scan_req); | |
12733 | ||
12734 | if (sched_scan_req && notify->portid && | |
12735 | sched_scan_req->owner_nlportid == notify->portid) | |
12736 | schedule_scan_stop = true; | |
12737 | ||
12738 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) { | |
12739 | cfg80211_mlme_unregister_socket(wdev, notify->portid); | |
12740 | ||
12741 | if (wdev->owner_nlportid == notify->portid) | |
12742 | schedule_destroy_work = true; | |
12743 | } | |
12744 | ||
12745 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
12746 | list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, | |
12747 | list) { | |
12748 | if (reg->nlportid == notify->portid) { | |
12749 | list_del(®->list); | |
12750 | kfree(reg); | |
12751 | break; | |
12752 | } | |
12753 | } | |
12754 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
12755 | ||
12756 | if (schedule_destroy_work) { | |
12757 | struct cfg80211_iface_destroy *destroy; | |
12758 | ||
12759 | destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC); | |
12760 | if (destroy) { | |
12761 | destroy->nlportid = notify->portid; | |
12762 | spin_lock(&rdev->destroy_list_lock); | |
12763 | list_add(&destroy->list, &rdev->destroy_list); | |
12764 | spin_unlock(&rdev->destroy_list_lock); | |
12765 | schedule_work(&rdev->destroy_work); | |
12766 | } | |
12767 | } else if (schedule_scan_stop) { | |
12768 | sched_scan_req->owner_nlportid = 0; | |
12769 | ||
12770 | if (rdev->ops->sched_scan_stop && | |
12771 | rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) | |
12772 | schedule_work(&rdev->sched_scan_stop_wk); | |
12773 | } | |
12774 | } | |
12775 | ||
12776 | rcu_read_unlock(); | |
12777 | ||
12778 | return NOTIFY_OK; | |
12779 | } | |
12780 | ||
12781 | static struct notifier_block nl80211_netlink_notifier = { | |
12782 | .notifier_call = nl80211_netlink_notify, | |
12783 | }; | |
12784 | ||
12785 | void cfg80211_ft_event(struct net_device *netdev, | |
12786 | struct cfg80211_ft_event_params *ft_event) | |
12787 | { | |
12788 | struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; | |
12789 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12790 | struct sk_buff *msg; | |
12791 | void *hdr; | |
12792 | ||
12793 | trace_cfg80211_ft_event(wiphy, netdev, ft_event); | |
12794 | ||
12795 | if (!ft_event->target_ap) | |
12796 | return; | |
12797 | ||
12798 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12799 | if (!msg) | |
12800 | return; | |
12801 | ||
12802 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT); | |
12803 | if (!hdr) | |
12804 | goto out; | |
12805 | ||
12806 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12807 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12808 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap)) | |
12809 | goto out; | |
12810 | ||
12811 | if (ft_event->ies && | |
12812 | nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies)) | |
12813 | goto out; | |
12814 | if (ft_event->ric_ies && | |
12815 | nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len, | |
12816 | ft_event->ric_ies)) | |
12817 | goto out; | |
12818 | ||
12819 | genlmsg_end(msg, hdr); | |
12820 | ||
12821 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, | |
12822 | NL80211_MCGRP_MLME, GFP_KERNEL); | |
12823 | return; | |
12824 | out: | |
12825 | nlmsg_free(msg); | |
12826 | } | |
12827 | EXPORT_SYMBOL(cfg80211_ft_event); | |
12828 | ||
12829 | void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) | |
12830 | { | |
12831 | struct cfg80211_registered_device *rdev; | |
12832 | struct sk_buff *msg; | |
12833 | void *hdr; | |
12834 | u32 nlportid; | |
12835 | ||
12836 | rdev = wiphy_to_rdev(wdev->wiphy); | |
12837 | if (!rdev->crit_proto_nlportid) | |
12838 | return; | |
12839 | ||
12840 | nlportid = rdev->crit_proto_nlportid; | |
12841 | rdev->crit_proto_nlportid = 0; | |
12842 | ||
12843 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12844 | if (!msg) | |
12845 | return; | |
12846 | ||
12847 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP); | |
12848 | if (!hdr) | |
12849 | goto nla_put_failure; | |
12850 | ||
12851 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12852 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
12853 | goto nla_put_failure; | |
12854 | ||
12855 | genlmsg_end(msg, hdr); | |
12856 | ||
12857 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
12858 | return; | |
12859 | ||
12860 | nla_put_failure: | |
12861 | if (hdr) | |
12862 | genlmsg_cancel(msg, hdr); | |
12863 | nlmsg_free(msg); | |
12864 | ||
12865 | } | |
12866 | EXPORT_SYMBOL(cfg80211_crit_proto_stopped); | |
12867 | ||
12868 | void nl80211_send_ap_stopped(struct wireless_dev *wdev) | |
12869 | { | |
12870 | struct wiphy *wiphy = wdev->wiphy; | |
12871 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12872 | struct sk_buff *msg; | |
12873 | void *hdr; | |
12874 | ||
12875 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12876 | if (!msg) | |
12877 | return; | |
12878 | ||
12879 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP); | |
12880 | if (!hdr) | |
12881 | goto out; | |
12882 | ||
12883 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
12884 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) || | |
12885 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
12886 | goto out; | |
12887 | ||
12888 | genlmsg_end(msg, hdr); | |
12889 | ||
12890 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0, | |
12891 | NL80211_MCGRP_MLME, GFP_KERNEL); | |
12892 | return; | |
12893 | out: | |
12894 | nlmsg_free(msg); | |
12895 | } | |
12896 | ||
12897 | /* initialisation/exit functions */ | |
12898 | ||
12899 | int nl80211_init(void) | |
12900 | { | |
12901 | int err; | |
12902 | ||
12903 | err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops, | |
12904 | nl80211_mcgrps); | |
12905 | if (err) | |
12906 | return err; | |
12907 | ||
12908 | err = netlink_register_notifier(&nl80211_netlink_notifier); | |
12909 | if (err) | |
12910 | goto err_out; | |
12911 | ||
12912 | return 0; | |
12913 | err_out: | |
12914 | genl_unregister_family(&nl80211_fam); | |
12915 | return err; | |
12916 | } | |
12917 | ||
12918 | void nl80211_exit(void) | |
12919 | { | |
12920 | netlink_unregister_notifier(&nl80211_netlink_notifier); | |
12921 | genl_unregister_family(&nl80211_fam); | |
12922 | } |