Commit | Line | Data |
---|---|---|
55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
08645126 | 4 | * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
55682965 JB |
10 | #include <linux/list.h> |
11 | #include <linux/if_ether.h> | |
12 | #include <linux/ieee80211.h> | |
13 | #include <linux/nl80211.h> | |
14 | #include <linux/rtnetlink.h> | |
15 | #include <linux/netlink.h> | |
2a519311 | 16 | #include <linux/etherdevice.h> |
55682965 JB |
17 | #include <net/genetlink.h> |
18 | #include <net/cfg80211.h> | |
19 | #include "core.h" | |
20 | #include "nl80211.h" | |
b2e1b302 | 21 | #include "reg.h" |
55682965 JB |
22 | |
23 | /* the netlink family */ | |
24 | static struct genl_family nl80211_fam = { | |
25 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
26 | .name = "nl80211", /* have users key off the name instead */ | |
27 | .hdrsize = 0, /* no private header */ | |
28 | .version = 1, /* no particular meaning now */ | |
29 | .maxattr = NL80211_ATTR_MAX, | |
30 | }; | |
31 | ||
32 | /* internal helper: get drv and dev */ | |
bba95fef | 33 | static int get_drv_dev_by_info_ifindex(struct nlattr **attrs, |
55682965 JB |
34 | struct cfg80211_registered_device **drv, |
35 | struct net_device **dev) | |
36 | { | |
37 | int ifindex; | |
38 | ||
bba95fef | 39 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
40 | return -EINVAL; |
41 | ||
bba95fef | 42 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
55682965 JB |
43 | *dev = dev_get_by_index(&init_net, ifindex); |
44 | if (!*dev) | |
45 | return -ENODEV; | |
46 | ||
47 | *drv = cfg80211_get_dev_from_ifindex(ifindex); | |
48 | if (IS_ERR(*drv)) { | |
49 | dev_put(*dev); | |
50 | return PTR_ERR(*drv); | |
51 | } | |
52 | ||
53 | return 0; | |
54 | } | |
55 | ||
56 | /* policy for the attributes */ | |
57 | static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { | |
58 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
59 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 60 | .len = 20-1 }, |
31888487 | 61 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 62 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 63 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
64 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
65 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
66 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
67 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
55682965 JB |
68 | |
69 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
70 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
71 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
72 | |
73 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
74 | ||
75 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
76 | .len = WLAN_MAX_KEY_LEN }, | |
77 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
78 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
79 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 80 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
81 | |
82 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
83 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
84 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
85 | .len = IEEE80211_MAX_DATA_LEN }, | |
86 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
87 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
88 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
89 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
90 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
91 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
92 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 93 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 94 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 95 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
96 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
97 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
98 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 99 | |
b2e1b302 LR |
100 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
101 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
102 | ||
9f1ba906 JM |
103 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
104 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
105 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
106 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
107 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 108 | |
93da9cc1 | 109 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
110 | ||
36aedc90 JM |
111 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
112 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
113 | |
114 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
115 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
116 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
117 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
118 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
119 | |
120 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
121 | .len = IEEE80211_MAX_SSID_LEN }, | |
122 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
123 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 124 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 125 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 126 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
127 | [NL80211_ATTR_STA_FLAGS2] = { |
128 | .len = sizeof(struct nl80211_sta_flag_update), | |
129 | }, | |
3f77316c | 130 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
55682965 JB |
131 | }; |
132 | ||
f4a11bb0 JB |
133 | /* IE validation */ |
134 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
135 | { | |
136 | const u8 *pos; | |
137 | int len; | |
138 | ||
139 | if (!attr) | |
140 | return true; | |
141 | ||
142 | pos = nla_data(attr); | |
143 | len = nla_len(attr); | |
144 | ||
145 | while (len) { | |
146 | u8 elemlen; | |
147 | ||
148 | if (len < 2) | |
149 | return false; | |
150 | len -= 2; | |
151 | ||
152 | elemlen = pos[1]; | |
153 | if (elemlen > len) | |
154 | return false; | |
155 | ||
156 | len -= elemlen; | |
157 | pos += 2 + elemlen; | |
158 | } | |
159 | ||
160 | return true; | |
161 | } | |
162 | ||
55682965 JB |
163 | /* message building helper */ |
164 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
165 | int flags, u8 cmd) | |
166 | { | |
167 | /* since there is no private header just add the generic one */ | |
168 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
169 | } | |
170 | ||
5dab3b8a LR |
171 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
172 | struct ieee80211_channel *chan) | |
173 | { | |
174 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
175 | chan->center_freq); | |
176 | ||
177 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
178 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
179 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
180 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
181 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
182 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
183 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
184 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
185 | ||
186 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
187 | DBM_TO_MBM(chan->max_power)); | |
188 | ||
189 | return 0; | |
190 | ||
191 | nla_put_failure: | |
192 | return -ENOBUFS; | |
193 | } | |
194 | ||
55682965 JB |
195 | /* netlink command implementations */ |
196 | ||
197 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
198 | struct cfg80211_registered_device *dev) | |
199 | { | |
200 | void *hdr; | |
ee688b00 JB |
201 | struct nlattr *nl_bands, *nl_band; |
202 | struct nlattr *nl_freqs, *nl_freq; | |
203 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 204 | struct nlattr *nl_modes; |
8fdc621d | 205 | struct nlattr *nl_cmds; |
ee688b00 JB |
206 | enum ieee80211_band band; |
207 | struct ieee80211_channel *chan; | |
208 | struct ieee80211_rate *rate; | |
209 | int i; | |
f59ac048 | 210 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
211 | |
212 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
213 | if (!hdr) | |
214 | return -1; | |
215 | ||
b5850a7a | 216 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 217 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca JM |
218 | |
219 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
220 | dev->wiphy.retry_short); | |
221 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
222 | dev->wiphy.retry_long); | |
223 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
224 | dev->wiphy.frag_threshold); | |
225 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
226 | dev->wiphy.rts_threshold); | |
227 | ||
2a519311 JB |
228 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
229 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
230 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
231 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 232 | |
25e47c18 JB |
233 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
234 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
235 | dev->wiphy.cipher_suites); | |
236 | ||
f59ac048 LR |
237 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
238 | if (!nl_modes) | |
239 | goto nla_put_failure; | |
240 | ||
241 | i = 0; | |
242 | while (ifmodes) { | |
243 | if (ifmodes & 1) | |
244 | NLA_PUT_FLAG(msg, i); | |
245 | ifmodes >>= 1; | |
246 | i++; | |
247 | } | |
248 | ||
249 | nla_nest_end(msg, nl_modes); | |
250 | ||
ee688b00 JB |
251 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
252 | if (!nl_bands) | |
253 | goto nla_put_failure; | |
254 | ||
255 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
256 | if (!dev->wiphy.bands[band]) | |
257 | continue; | |
258 | ||
259 | nl_band = nla_nest_start(msg, band); | |
260 | if (!nl_band) | |
261 | goto nla_put_failure; | |
262 | ||
d51626df JB |
263 | /* add HT info */ |
264 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
265 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
266 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
267 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
268 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
269 | dev->wiphy.bands[band]->ht_cap.cap); | |
270 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
271 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
272 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
273 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
274 | } | |
275 | ||
ee688b00 JB |
276 | /* add frequencies */ |
277 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
278 | if (!nl_freqs) | |
279 | goto nla_put_failure; | |
280 | ||
281 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
282 | nl_freq = nla_nest_start(msg, i); | |
283 | if (!nl_freq) | |
284 | goto nla_put_failure; | |
285 | ||
286 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
287 | |
288 | if (nl80211_msg_put_channel(msg, chan)) | |
289 | goto nla_put_failure; | |
e2f367f2 | 290 | |
ee688b00 JB |
291 | nla_nest_end(msg, nl_freq); |
292 | } | |
293 | ||
294 | nla_nest_end(msg, nl_freqs); | |
295 | ||
296 | /* add bitrates */ | |
297 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
298 | if (!nl_rates) | |
299 | goto nla_put_failure; | |
300 | ||
301 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
302 | nl_rate = nla_nest_start(msg, i); | |
303 | if (!nl_rate) | |
304 | goto nla_put_failure; | |
305 | ||
306 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
307 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
308 | rate->bitrate); | |
309 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
310 | NLA_PUT_FLAG(msg, | |
311 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
312 | ||
313 | nla_nest_end(msg, nl_rate); | |
314 | } | |
315 | ||
316 | nla_nest_end(msg, nl_rates); | |
317 | ||
318 | nla_nest_end(msg, nl_band); | |
319 | } | |
320 | nla_nest_end(msg, nl_bands); | |
321 | ||
8fdc621d JB |
322 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
323 | if (!nl_cmds) | |
324 | goto nla_put_failure; | |
325 | ||
326 | i = 0; | |
327 | #define CMD(op, n) \ | |
328 | do { \ | |
329 | if (dev->ops->op) { \ | |
330 | i++; \ | |
331 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
332 | } \ | |
333 | } while (0) | |
334 | ||
335 | CMD(add_virtual_intf, NEW_INTERFACE); | |
336 | CMD(change_virtual_intf, SET_INTERFACE); | |
337 | CMD(add_key, NEW_KEY); | |
338 | CMD(add_beacon, NEW_BEACON); | |
339 | CMD(add_station, NEW_STATION); | |
340 | CMD(add_mpath, NEW_MPATH); | |
341 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
342 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
343 | CMD(auth, AUTHENTICATE); |
344 | CMD(assoc, ASSOCIATE); | |
345 | CMD(deauth, DEAUTHENTICATE); | |
346 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 347 | CMD(join_ibss, JOIN_IBSS); |
8fdc621d JB |
348 | |
349 | #undef CMD | |
350 | nla_nest_end(msg, nl_cmds); | |
351 | ||
55682965 JB |
352 | return genlmsg_end(msg, hdr); |
353 | ||
354 | nla_put_failure: | |
bc3ed28c TG |
355 | genlmsg_cancel(msg, hdr); |
356 | return -EMSGSIZE; | |
55682965 JB |
357 | } |
358 | ||
359 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
360 | { | |
361 | int idx = 0; | |
362 | int start = cb->args[0]; | |
363 | struct cfg80211_registered_device *dev; | |
364 | ||
a1794390 | 365 | mutex_lock(&cfg80211_mutex); |
55682965 | 366 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
b4637271 | 367 | if (++idx <= start) |
55682965 JB |
368 | continue; |
369 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
370 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
371 | dev) < 0) { |
372 | idx--; | |
55682965 | 373 | break; |
b4637271 | 374 | } |
55682965 | 375 | } |
a1794390 | 376 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
377 | |
378 | cb->args[0] = idx; | |
379 | ||
380 | return skb->len; | |
381 | } | |
382 | ||
383 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
384 | { | |
385 | struct sk_buff *msg; | |
386 | struct cfg80211_registered_device *dev; | |
387 | ||
388 | dev = cfg80211_get_dev_from_info(info); | |
389 | if (IS_ERR(dev)) | |
390 | return PTR_ERR(dev); | |
391 | ||
fd2120ca | 392 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
393 | if (!msg) |
394 | goto out_err; | |
395 | ||
396 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
397 | goto out_free; | |
398 | ||
399 | cfg80211_put_dev(dev); | |
400 | ||
401 | return genlmsg_unicast(msg, info->snd_pid); | |
402 | ||
403 | out_free: | |
404 | nlmsg_free(msg); | |
405 | out_err: | |
406 | cfg80211_put_dev(dev); | |
407 | return -ENOBUFS; | |
408 | } | |
409 | ||
31888487 JM |
410 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
411 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
412 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
413 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
414 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
415 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
416 | }; | |
417 | ||
418 | static int parse_txq_params(struct nlattr *tb[], | |
419 | struct ieee80211_txq_params *txq_params) | |
420 | { | |
421 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
422 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
423 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
424 | return -EINVAL; | |
425 | ||
426 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
427 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
428 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
429 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
430 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
55682965 JB |
435 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
436 | { | |
437 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
438 | int result = 0, rem_txq_params = 0; |
439 | struct nlattr *nl_txq_params; | |
b9a5f8ca JM |
440 | u32 changed; |
441 | u8 retry_short = 0, retry_long = 0; | |
442 | u32 frag_threshold = 0, rts_threshold = 0; | |
55682965 | 443 | |
4bbf4d56 | 444 | rtnl_lock(); |
55682965 | 445 | |
4bbf4d56 JB |
446 | mutex_lock(&cfg80211_mutex); |
447 | ||
448 | rdev = __cfg80211_drv_from_info(info); | |
449 | if (IS_ERR(rdev)) { | |
1f5fc70a | 450 | mutex_unlock(&cfg80211_mutex); |
4bbf4d56 JB |
451 | result = PTR_ERR(rdev); |
452 | goto unlock; | |
453 | } | |
454 | ||
455 | mutex_lock(&rdev->mtx); | |
456 | ||
457 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
458 | result = cfg80211_dev_rename( |
459 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
460 | |
461 | mutex_unlock(&cfg80211_mutex); | |
462 | ||
463 | if (result) | |
464 | goto bad_res; | |
31888487 JM |
465 | |
466 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
467 | struct ieee80211_txq_params txq_params; | |
468 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
469 | ||
470 | if (!rdev->ops->set_txq_params) { | |
471 | result = -EOPNOTSUPP; | |
472 | goto bad_res; | |
473 | } | |
474 | ||
475 | nla_for_each_nested(nl_txq_params, | |
476 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
477 | rem_txq_params) { | |
478 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
479 | nla_data(nl_txq_params), | |
480 | nla_len(nl_txq_params), | |
481 | txq_params_policy); | |
482 | result = parse_txq_params(tb, &txq_params); | |
483 | if (result) | |
484 | goto bad_res; | |
485 | ||
486 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
487 | &txq_params); | |
488 | if (result) | |
489 | goto bad_res; | |
490 | } | |
491 | } | |
55682965 | 492 | |
72bdcf34 | 493 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 494 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
72bdcf34 | 495 | struct ieee80211_channel *chan; |
306d6112 | 496 | struct ieee80211_sta_ht_cap *ht_cap; |
294196ab | 497 | u32 freq; |
72bdcf34 JM |
498 | |
499 | if (!rdev->ops->set_channel) { | |
500 | result = -EOPNOTSUPP; | |
501 | goto bad_res; | |
502 | } | |
503 | ||
306d6112 JB |
504 | result = -EINVAL; |
505 | ||
094d05dc S |
506 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
507 | channel_type = nla_get_u32(info->attrs[ | |
508 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
509 | if (channel_type != NL80211_CHAN_NO_HT && | |
510 | channel_type != NL80211_CHAN_HT20 && | |
511 | channel_type != NL80211_CHAN_HT40PLUS && | |
512 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 513 | goto bad_res; |
72bdcf34 JM |
514 | } |
515 | ||
516 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
517 | chan = ieee80211_get_channel(&rdev->wiphy, freq); | |
306d6112 JB |
518 | |
519 | /* Primary channel not allowed */ | |
520 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 521 | goto bad_res; |
306d6112 | 522 | |
294196ab LR |
523 | if (channel_type == NL80211_CHAN_HT40MINUS && |
524 | (chan->flags & IEEE80211_CHAN_NO_HT40MINUS)) | |
306d6112 | 525 | goto bad_res; |
294196ab LR |
526 | else if (channel_type == NL80211_CHAN_HT40PLUS && |
527 | (chan->flags & IEEE80211_CHAN_NO_HT40PLUS)) | |
306d6112 JB |
528 | goto bad_res; |
529 | ||
294196ab LR |
530 | /* |
531 | * At this point we know if that if HT40 was requested | |
532 | * we are allowed to use it and the extension channel | |
533 | * exists. | |
534 | */ | |
306d6112 | 535 | |
294196ab | 536 | ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap; |
306d6112 | 537 | |
294196ab LR |
538 | /* no HT capabilities or intolerant */ |
539 | if (channel_type != NL80211_CHAN_NO_HT) { | |
540 | if (!ht_cap->ht_supported) | |
541 | goto bad_res; | |
306d6112 JB |
542 | if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || |
543 | (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)) | |
544 | goto bad_res; | |
72bdcf34 JM |
545 | } |
546 | ||
547 | result = rdev->ops->set_channel(&rdev->wiphy, chan, | |
094d05dc | 548 | channel_type); |
72bdcf34 JM |
549 | if (result) |
550 | goto bad_res; | |
551 | } | |
552 | ||
b9a5f8ca JM |
553 | changed = 0; |
554 | ||
555 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
556 | retry_short = nla_get_u8( | |
557 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
558 | if (retry_short == 0) { | |
559 | result = -EINVAL; | |
560 | goto bad_res; | |
561 | } | |
562 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
563 | } | |
564 | ||
565 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
566 | retry_long = nla_get_u8( | |
567 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
568 | if (retry_long == 0) { | |
569 | result = -EINVAL; | |
570 | goto bad_res; | |
571 | } | |
572 | changed |= WIPHY_PARAM_RETRY_LONG; | |
573 | } | |
574 | ||
575 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
576 | frag_threshold = nla_get_u32( | |
577 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
578 | if (frag_threshold < 256) { | |
579 | result = -EINVAL; | |
580 | goto bad_res; | |
581 | } | |
582 | if (frag_threshold != (u32) -1) { | |
583 | /* | |
584 | * Fragments (apart from the last one) are required to | |
585 | * have even length. Make the fragmentation code | |
586 | * simpler by stripping LSB should someone try to use | |
587 | * odd threshold value. | |
588 | */ | |
589 | frag_threshold &= ~0x1; | |
590 | } | |
591 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
592 | } | |
593 | ||
594 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
595 | rts_threshold = nla_get_u32( | |
596 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
597 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
598 | } | |
599 | ||
600 | if (changed) { | |
601 | u8 old_retry_short, old_retry_long; | |
602 | u32 old_frag_threshold, old_rts_threshold; | |
603 | ||
604 | if (!rdev->ops->set_wiphy_params) { | |
605 | result = -EOPNOTSUPP; | |
606 | goto bad_res; | |
607 | } | |
608 | ||
609 | old_retry_short = rdev->wiphy.retry_short; | |
610 | old_retry_long = rdev->wiphy.retry_long; | |
611 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
612 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
613 | ||
614 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
615 | rdev->wiphy.retry_short = retry_short; | |
616 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
617 | rdev->wiphy.retry_long = retry_long; | |
618 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
619 | rdev->wiphy.frag_threshold = frag_threshold; | |
620 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
621 | rdev->wiphy.rts_threshold = rts_threshold; | |
622 | ||
623 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
624 | if (result) { | |
625 | rdev->wiphy.retry_short = old_retry_short; | |
626 | rdev->wiphy.retry_long = old_retry_long; | |
627 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
628 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
629 | } | |
630 | } | |
72bdcf34 | 631 | |
306d6112 | 632 | bad_res: |
4bbf4d56 JB |
633 | mutex_unlock(&rdev->mtx); |
634 | unlock: | |
635 | rtnl_unlock(); | |
55682965 JB |
636 | return result; |
637 | } | |
638 | ||
639 | ||
640 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 641 | struct cfg80211_registered_device *rdev, |
55682965 JB |
642 | struct net_device *dev) |
643 | { | |
644 | void *hdr; | |
645 | ||
646 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
647 | if (!hdr) | |
648 | return -1; | |
649 | ||
650 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 651 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 652 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 653 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
55682965 JB |
654 | return genlmsg_end(msg, hdr); |
655 | ||
656 | nla_put_failure: | |
bc3ed28c TG |
657 | genlmsg_cancel(msg, hdr); |
658 | return -EMSGSIZE; | |
55682965 JB |
659 | } |
660 | ||
661 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
662 | { | |
663 | int wp_idx = 0; | |
664 | int if_idx = 0; | |
665 | int wp_start = cb->args[0]; | |
666 | int if_start = cb->args[1]; | |
667 | struct cfg80211_registered_device *dev; | |
668 | struct wireless_dev *wdev; | |
669 | ||
a1794390 | 670 | mutex_lock(&cfg80211_mutex); |
55682965 | 671 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
bba95fef JB |
672 | if (wp_idx < wp_start) { |
673 | wp_idx++; | |
55682965 | 674 | continue; |
bba95fef | 675 | } |
55682965 JB |
676 | if_idx = 0; |
677 | ||
678 | mutex_lock(&dev->devlist_mtx); | |
679 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
bba95fef JB |
680 | if (if_idx < if_start) { |
681 | if_idx++; | |
55682965 | 682 | continue; |
bba95fef | 683 | } |
55682965 JB |
684 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
685 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
d726405a | 686 | dev, wdev->netdev) < 0) { |
bba95fef JB |
687 | mutex_unlock(&dev->devlist_mtx); |
688 | goto out; | |
689 | } | |
690 | if_idx++; | |
55682965 JB |
691 | } |
692 | mutex_unlock(&dev->devlist_mtx); | |
bba95fef JB |
693 | |
694 | wp_idx++; | |
55682965 | 695 | } |
bba95fef | 696 | out: |
a1794390 | 697 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
698 | |
699 | cb->args[0] = wp_idx; | |
700 | cb->args[1] = if_idx; | |
701 | ||
702 | return skb->len; | |
703 | } | |
704 | ||
705 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
706 | { | |
707 | struct sk_buff *msg; | |
708 | struct cfg80211_registered_device *dev; | |
709 | struct net_device *netdev; | |
710 | int err; | |
711 | ||
bba95fef | 712 | err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev); |
55682965 JB |
713 | if (err) |
714 | return err; | |
715 | ||
fd2120ca | 716 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
717 | if (!msg) |
718 | goto out_err; | |
719 | ||
d726405a JB |
720 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
721 | dev, netdev) < 0) | |
55682965 JB |
722 | goto out_free; |
723 | ||
724 | dev_put(netdev); | |
725 | cfg80211_put_dev(dev); | |
726 | ||
727 | return genlmsg_unicast(msg, info->snd_pid); | |
728 | ||
729 | out_free: | |
730 | nlmsg_free(msg); | |
731 | out_err: | |
732 | dev_put(netdev); | |
733 | cfg80211_put_dev(dev); | |
734 | return -ENOBUFS; | |
735 | } | |
736 | ||
66f7ac50 MW |
737 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
738 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
739 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
740 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
741 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
742 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
743 | }; | |
744 | ||
745 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
746 | { | |
747 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
748 | int flag; | |
749 | ||
750 | *mntrflags = 0; | |
751 | ||
752 | if (!nla) | |
753 | return -EINVAL; | |
754 | ||
755 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
756 | nla, mntr_flags_policy)) | |
757 | return -EINVAL; | |
758 | ||
759 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
760 | if (flags[flag]) | |
761 | *mntrflags |= (1<<flag); | |
762 | ||
763 | return 0; | |
764 | } | |
765 | ||
55682965 JB |
766 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
767 | { | |
768 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 769 | struct vif_params params; |
e36d56b6 | 770 | int err; |
04a773ad | 771 | enum nl80211_iftype otype, ntype; |
55682965 | 772 | struct net_device *dev; |
92ffe055 | 773 | u32 _flags, *flags = NULL; |
ac7f9cfa | 774 | bool change = false; |
55682965 | 775 | |
2ec600d6 LCC |
776 | memset(¶ms, 0, sizeof(params)); |
777 | ||
3b85875a JB |
778 | rtnl_lock(); |
779 | ||
bba95fef | 780 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 781 | if (err) |
3b85875a JB |
782 | goto unlock_rtnl; |
783 | ||
04a773ad | 784 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 785 | |
723b038d | 786 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 787 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 788 | if (otype != ntype) |
ac7f9cfa | 789 | change = true; |
04a773ad | 790 | if (ntype > NL80211_IFTYPE_MAX) { |
ac7f9cfa | 791 | err = -EINVAL; |
723b038d | 792 | goto unlock; |
ac7f9cfa | 793 | } |
723b038d JB |
794 | } |
795 | ||
f59ac048 | 796 | if (!drv->ops->change_virtual_intf || |
04a773ad | 797 | !(drv->wiphy.interface_modes & (1 << ntype))) { |
55682965 JB |
798 | err = -EOPNOTSUPP; |
799 | goto unlock; | |
800 | } | |
801 | ||
92ffe055 | 802 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
04a773ad | 803 | if (ntype != NL80211_IFTYPE_MESH_POINT) { |
92ffe055 JB |
804 | err = -EINVAL; |
805 | goto unlock; | |
806 | } | |
2ec600d6 LCC |
807 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
808 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 809 | change = true; |
2ec600d6 LCC |
810 | } |
811 | ||
92ffe055 | 812 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
04a773ad | 813 | if (ntype != NL80211_IFTYPE_MONITOR) { |
92ffe055 JB |
814 | err = -EINVAL; |
815 | goto unlock; | |
816 | } | |
817 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
818 | &_flags); | |
ac7f9cfa JB |
819 | if (err) |
820 | goto unlock; | |
821 | ||
822 | flags = &_flags; | |
823 | change = true; | |
92ffe055 | 824 | } |
3b85875a | 825 | |
ac7f9cfa | 826 | if (change) |
e36d56b6 | 827 | err = drv->ops->change_virtual_intf(&drv->wiphy, dev, |
04a773ad | 828 | ntype, flags, ¶ms); |
ac7f9cfa JB |
829 | else |
830 | err = 0; | |
60719ffd | 831 | |
e36d56b6 | 832 | WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype); |
04a773ad | 833 | |
e36d56b6 | 834 | if (!err && (ntype != otype)) { |
04a773ad | 835 | if (otype == NL80211_IFTYPE_ADHOC) |
9d308429 | 836 | cfg80211_clear_ibss(dev, false); |
04a773ad | 837 | } |
60719ffd | 838 | |
55682965 | 839 | unlock: |
e36d56b6 | 840 | dev_put(dev); |
55682965 | 841 | cfg80211_put_dev(drv); |
3b85875a JB |
842 | unlock_rtnl: |
843 | rtnl_unlock(); | |
55682965 JB |
844 | return err; |
845 | } | |
846 | ||
847 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
848 | { | |
849 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 850 | struct vif_params params; |
55682965 JB |
851 | int err; |
852 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 853 | u32 flags; |
55682965 | 854 | |
2ec600d6 LCC |
855 | memset(¶ms, 0, sizeof(params)); |
856 | ||
55682965 JB |
857 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
858 | return -EINVAL; | |
859 | ||
860 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
861 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
862 | if (type > NL80211_IFTYPE_MAX) | |
863 | return -EINVAL; | |
864 | } | |
865 | ||
3b85875a JB |
866 | rtnl_lock(); |
867 | ||
55682965 | 868 | drv = cfg80211_get_dev_from_info(info); |
3b85875a JB |
869 | if (IS_ERR(drv)) { |
870 | err = PTR_ERR(drv); | |
871 | goto unlock_rtnl; | |
872 | } | |
55682965 | 873 | |
f59ac048 LR |
874 | if (!drv->ops->add_virtual_intf || |
875 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
876 | err = -EOPNOTSUPP; |
877 | goto unlock; | |
878 | } | |
879 | ||
2ec600d6 LCC |
880 | if (type == NL80211_IFTYPE_MESH_POINT && |
881 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
882 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
883 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
884 | } | |
885 | ||
66f7ac50 MW |
886 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
887 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
888 | &flags); | |
55682965 | 889 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 890 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 891 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 892 | |
55682965 JB |
893 | unlock: |
894 | cfg80211_put_dev(drv); | |
3b85875a JB |
895 | unlock_rtnl: |
896 | rtnl_unlock(); | |
55682965 JB |
897 | return err; |
898 | } | |
899 | ||
900 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
901 | { | |
902 | struct cfg80211_registered_device *drv; | |
903 | int ifindex, err; | |
904 | struct net_device *dev; | |
905 | ||
3b85875a JB |
906 | rtnl_lock(); |
907 | ||
bba95fef | 908 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 909 | if (err) |
3b85875a | 910 | goto unlock_rtnl; |
55682965 JB |
911 | ifindex = dev->ifindex; |
912 | dev_put(dev); | |
913 | ||
914 | if (!drv->ops->del_virtual_intf) { | |
915 | err = -EOPNOTSUPP; | |
916 | goto out; | |
917 | } | |
918 | ||
55682965 | 919 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); |
55682965 JB |
920 | |
921 | out: | |
922 | cfg80211_put_dev(drv); | |
3b85875a JB |
923 | unlock_rtnl: |
924 | rtnl_unlock(); | |
55682965 JB |
925 | return err; |
926 | } | |
927 | ||
41ade00f JB |
928 | struct get_key_cookie { |
929 | struct sk_buff *msg; | |
930 | int error; | |
931 | }; | |
932 | ||
933 | static void get_key_callback(void *c, struct key_params *params) | |
934 | { | |
935 | struct get_key_cookie *cookie = c; | |
936 | ||
937 | if (params->key) | |
938 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
939 | params->key_len, params->key); | |
940 | ||
941 | if (params->seq) | |
942 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
943 | params->seq_len, params->seq); | |
944 | ||
945 | if (params->cipher) | |
946 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
947 | params->cipher); | |
948 | ||
949 | return; | |
950 | nla_put_failure: | |
951 | cookie->error = 1; | |
952 | } | |
953 | ||
954 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
955 | { | |
956 | struct cfg80211_registered_device *drv; | |
957 | int err; | |
958 | struct net_device *dev; | |
959 | u8 key_idx = 0; | |
960 | u8 *mac_addr = NULL; | |
961 | struct get_key_cookie cookie = { | |
962 | .error = 0, | |
963 | }; | |
964 | void *hdr; | |
965 | struct sk_buff *msg; | |
966 | ||
967 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
968 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
969 | ||
3cfcf6ac | 970 | if (key_idx > 5) |
41ade00f JB |
971 | return -EINVAL; |
972 | ||
973 | if (info->attrs[NL80211_ATTR_MAC]) | |
974 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
975 | ||
3b85875a JB |
976 | rtnl_lock(); |
977 | ||
bba95fef | 978 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 979 | if (err) |
3b85875a | 980 | goto unlock_rtnl; |
41ade00f JB |
981 | |
982 | if (!drv->ops->get_key) { | |
983 | err = -EOPNOTSUPP; | |
984 | goto out; | |
985 | } | |
986 | ||
fd2120ca | 987 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
41ade00f JB |
988 | if (!msg) { |
989 | err = -ENOMEM; | |
990 | goto out; | |
991 | } | |
992 | ||
993 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
994 | NL80211_CMD_NEW_KEY); | |
995 | ||
996 | if (IS_ERR(hdr)) { | |
997 | err = PTR_ERR(hdr); | |
998 | goto out; | |
999 | } | |
1000 | ||
1001 | cookie.msg = msg; | |
1002 | ||
1003 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1004 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1005 | if (mac_addr) | |
1006 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1007 | ||
41ade00f JB |
1008 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, |
1009 | &cookie, get_key_callback); | |
41ade00f JB |
1010 | |
1011 | if (err) | |
1012 | goto out; | |
1013 | ||
1014 | if (cookie.error) | |
1015 | goto nla_put_failure; | |
1016 | ||
1017 | genlmsg_end(msg, hdr); | |
1018 | err = genlmsg_unicast(msg, info->snd_pid); | |
1019 | goto out; | |
1020 | ||
1021 | nla_put_failure: | |
1022 | err = -ENOBUFS; | |
1023 | nlmsg_free(msg); | |
1024 | out: | |
1025 | cfg80211_put_dev(drv); | |
1026 | dev_put(dev); | |
3b85875a JB |
1027 | unlock_rtnl: |
1028 | rtnl_unlock(); | |
1029 | ||
41ade00f JB |
1030 | return err; |
1031 | } | |
1032 | ||
1033 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1034 | { | |
1035 | struct cfg80211_registered_device *drv; | |
1036 | int err; | |
1037 | struct net_device *dev; | |
1038 | u8 key_idx; | |
3cfcf6ac JM |
1039 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1040 | u8 key_index); | |
41ade00f JB |
1041 | |
1042 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
1043 | return -EINVAL; | |
1044 | ||
1045 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1046 | ||
3cfcf6ac JM |
1047 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) { |
1048 | if (key_idx < 4 || key_idx > 5) | |
1049 | return -EINVAL; | |
1050 | } else if (key_idx > 3) | |
41ade00f JB |
1051 | return -EINVAL; |
1052 | ||
1053 | /* currently only support setting default key */ | |
3cfcf6ac JM |
1054 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] && |
1055 | !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) | |
41ade00f JB |
1056 | return -EINVAL; |
1057 | ||
3b85875a JB |
1058 | rtnl_lock(); |
1059 | ||
bba95fef | 1060 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1061 | if (err) |
3b85875a | 1062 | goto unlock_rtnl; |
41ade00f | 1063 | |
3cfcf6ac JM |
1064 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT]) |
1065 | func = drv->ops->set_default_key; | |
1066 | else | |
1067 | func = drv->ops->set_default_mgmt_key; | |
1068 | ||
1069 | if (!func) { | |
41ade00f JB |
1070 | err = -EOPNOTSUPP; |
1071 | goto out; | |
1072 | } | |
1073 | ||
3cfcf6ac | 1074 | err = func(&drv->wiphy, dev, key_idx); |
08645126 JB |
1075 | #ifdef CONFIG_WIRELESS_EXT |
1076 | if (!err) { | |
1077 | if (func == drv->ops->set_default_key) | |
1078 | dev->ieee80211_ptr->wext.default_key = key_idx; | |
1079 | else | |
1080 | dev->ieee80211_ptr->wext.default_mgmt_key = key_idx; | |
1081 | } | |
1082 | #endif | |
41ade00f JB |
1083 | |
1084 | out: | |
1085 | cfg80211_put_dev(drv); | |
1086 | dev_put(dev); | |
3b85875a JB |
1087 | |
1088 | unlock_rtnl: | |
1089 | rtnl_unlock(); | |
1090 | ||
41ade00f JB |
1091 | return err; |
1092 | } | |
1093 | ||
1094 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1095 | { | |
1096 | struct cfg80211_registered_device *drv; | |
25e47c18 | 1097 | int err, i; |
41ade00f JB |
1098 | struct net_device *dev; |
1099 | struct key_params params; | |
1100 | u8 key_idx = 0; | |
1101 | u8 *mac_addr = NULL; | |
1102 | ||
1103 | memset(¶ms, 0, sizeof(params)); | |
1104 | ||
1105 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
1106 | return -EINVAL; | |
1107 | ||
1108 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
1109 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
1110 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
1111 | } | |
1112 | ||
faa8fdc8 JM |
1113 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { |
1114 | params.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
1115 | params.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
1116 | } | |
1117 | ||
41ade00f JB |
1118 | if (info->attrs[NL80211_ATTR_KEY_IDX]) |
1119 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1120 | ||
1121 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
1122 | ||
1123 | if (info->attrs[NL80211_ATTR_MAC]) | |
1124 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1125 | ||
08645126 | 1126 | if (cfg80211_validate_key_settings(¶ms, key_idx, mac_addr)) |
41ade00f JB |
1127 | return -EINVAL; |
1128 | ||
3b85875a JB |
1129 | rtnl_lock(); |
1130 | ||
bba95fef | 1131 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1132 | if (err) |
3b85875a | 1133 | goto unlock_rtnl; |
41ade00f | 1134 | |
25e47c18 JB |
1135 | for (i = 0; i < drv->wiphy.n_cipher_suites; i++) |
1136 | if (params.cipher == drv->wiphy.cipher_suites[i]) | |
1137 | break; | |
1138 | if (i == drv->wiphy.n_cipher_suites) { | |
1139 | err = -EINVAL; | |
1140 | goto out; | |
1141 | } | |
1142 | ||
41ade00f JB |
1143 | if (!drv->ops->add_key) { |
1144 | err = -EOPNOTSUPP; | |
1145 | goto out; | |
1146 | } | |
1147 | ||
41ade00f | 1148 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); |
41ade00f JB |
1149 | |
1150 | out: | |
1151 | cfg80211_put_dev(drv); | |
1152 | dev_put(dev); | |
3b85875a JB |
1153 | unlock_rtnl: |
1154 | rtnl_unlock(); | |
1155 | ||
41ade00f JB |
1156 | return err; |
1157 | } | |
1158 | ||
1159 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1160 | { | |
1161 | struct cfg80211_registered_device *drv; | |
1162 | int err; | |
1163 | struct net_device *dev; | |
1164 | u8 key_idx = 0; | |
1165 | u8 *mac_addr = NULL; | |
1166 | ||
1167 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1168 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1169 | ||
3cfcf6ac | 1170 | if (key_idx > 5) |
41ade00f JB |
1171 | return -EINVAL; |
1172 | ||
1173 | if (info->attrs[NL80211_ATTR_MAC]) | |
1174 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1175 | ||
3b85875a JB |
1176 | rtnl_lock(); |
1177 | ||
bba95fef | 1178 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1179 | if (err) |
3b85875a | 1180 | goto unlock_rtnl; |
41ade00f JB |
1181 | |
1182 | if (!drv->ops->del_key) { | |
1183 | err = -EOPNOTSUPP; | |
1184 | goto out; | |
1185 | } | |
1186 | ||
41ade00f | 1187 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); |
41ade00f | 1188 | |
08645126 JB |
1189 | #ifdef CONFIG_WIRELESS_EXT |
1190 | if (!err) { | |
1191 | if (key_idx == dev->ieee80211_ptr->wext.default_key) | |
1192 | dev->ieee80211_ptr->wext.default_key = -1; | |
1193 | else if (key_idx == dev->ieee80211_ptr->wext.default_mgmt_key) | |
1194 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; | |
1195 | } | |
1196 | #endif | |
1197 | ||
41ade00f JB |
1198 | out: |
1199 | cfg80211_put_dev(drv); | |
1200 | dev_put(dev); | |
3b85875a JB |
1201 | |
1202 | unlock_rtnl: | |
1203 | rtnl_unlock(); | |
1204 | ||
41ade00f JB |
1205 | return err; |
1206 | } | |
1207 | ||
ed1b6cc7 JB |
1208 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1209 | { | |
1210 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1211 | struct beacon_parameters *info); | |
1212 | struct cfg80211_registered_device *drv; | |
1213 | int err; | |
1214 | struct net_device *dev; | |
1215 | struct beacon_parameters params; | |
1216 | int haveinfo = 0; | |
1217 | ||
f4a11bb0 JB |
1218 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1219 | return -EINVAL; | |
1220 | ||
3b85875a JB |
1221 | rtnl_lock(); |
1222 | ||
bba95fef | 1223 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1224 | if (err) |
3b85875a | 1225 | goto unlock_rtnl; |
ed1b6cc7 | 1226 | |
eec60b03 JM |
1227 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1228 | err = -EOPNOTSUPP; | |
1229 | goto out; | |
1230 | } | |
1231 | ||
ed1b6cc7 JB |
1232 | switch (info->genlhdr->cmd) { |
1233 | case NL80211_CMD_NEW_BEACON: | |
1234 | /* these are required for NEW_BEACON */ | |
1235 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1236 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1237 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1238 | err = -EINVAL; | |
1239 | goto out; | |
1240 | } | |
1241 | ||
1242 | call = drv->ops->add_beacon; | |
1243 | break; | |
1244 | case NL80211_CMD_SET_BEACON: | |
1245 | call = drv->ops->set_beacon; | |
1246 | break; | |
1247 | default: | |
1248 | WARN_ON(1); | |
1249 | err = -EOPNOTSUPP; | |
1250 | goto out; | |
1251 | } | |
1252 | ||
1253 | if (!call) { | |
1254 | err = -EOPNOTSUPP; | |
1255 | goto out; | |
1256 | } | |
1257 | ||
1258 | memset(¶ms, 0, sizeof(params)); | |
1259 | ||
1260 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1261 | params.interval = | |
1262 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1263 | haveinfo = 1; | |
1264 | } | |
1265 | ||
1266 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1267 | params.dtim_period = | |
1268 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1269 | haveinfo = 1; | |
1270 | } | |
1271 | ||
1272 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1273 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1274 | params.head_len = | |
1275 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1276 | haveinfo = 1; | |
1277 | } | |
1278 | ||
1279 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1280 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1281 | params.tail_len = | |
1282 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1283 | haveinfo = 1; | |
1284 | } | |
1285 | ||
1286 | if (!haveinfo) { | |
1287 | err = -EINVAL; | |
1288 | goto out; | |
1289 | } | |
1290 | ||
ed1b6cc7 | 1291 | err = call(&drv->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1292 | |
1293 | out: | |
1294 | cfg80211_put_dev(drv); | |
1295 | dev_put(dev); | |
3b85875a JB |
1296 | unlock_rtnl: |
1297 | rtnl_unlock(); | |
1298 | ||
ed1b6cc7 JB |
1299 | return err; |
1300 | } | |
1301 | ||
1302 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1303 | { | |
1304 | struct cfg80211_registered_device *drv; | |
1305 | int err; | |
1306 | struct net_device *dev; | |
1307 | ||
3b85875a JB |
1308 | rtnl_lock(); |
1309 | ||
bba95fef | 1310 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1311 | if (err) |
3b85875a | 1312 | goto unlock_rtnl; |
ed1b6cc7 JB |
1313 | |
1314 | if (!drv->ops->del_beacon) { | |
1315 | err = -EOPNOTSUPP; | |
1316 | goto out; | |
1317 | } | |
1318 | ||
eec60b03 JM |
1319 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1320 | err = -EOPNOTSUPP; | |
1321 | goto out; | |
1322 | } | |
ed1b6cc7 | 1323 | err = drv->ops->del_beacon(&drv->wiphy, dev); |
ed1b6cc7 JB |
1324 | |
1325 | out: | |
1326 | cfg80211_put_dev(drv); | |
1327 | dev_put(dev); | |
3b85875a JB |
1328 | unlock_rtnl: |
1329 | rtnl_unlock(); | |
1330 | ||
ed1b6cc7 JB |
1331 | return err; |
1332 | } | |
1333 | ||
5727ef1b JB |
1334 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1335 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1336 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1337 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1338 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1339 | }; |
1340 | ||
eccb8e8f JB |
1341 | static int parse_station_flags(struct genl_info *info, |
1342 | struct station_parameters *params) | |
5727ef1b JB |
1343 | { |
1344 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1345 | struct nlattr *nla; |
5727ef1b JB |
1346 | int flag; |
1347 | ||
eccb8e8f JB |
1348 | /* |
1349 | * Try parsing the new attribute first so userspace | |
1350 | * can specify both for older kernels. | |
1351 | */ | |
1352 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1353 | if (nla) { | |
1354 | struct nl80211_sta_flag_update *sta_flags; | |
1355 | ||
1356 | sta_flags = nla_data(nla); | |
1357 | params->sta_flags_mask = sta_flags->mask; | |
1358 | params->sta_flags_set = sta_flags->set; | |
1359 | if ((params->sta_flags_mask | | |
1360 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1361 | return -EINVAL; | |
1362 | return 0; | |
1363 | } | |
1364 | ||
1365 | /* if present, parse the old attribute */ | |
5727ef1b | 1366 | |
eccb8e8f | 1367 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1368 | if (!nla) |
1369 | return 0; | |
1370 | ||
1371 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1372 | nla, sta_flags_policy)) | |
1373 | return -EINVAL; | |
1374 | ||
eccb8e8f JB |
1375 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1376 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1377 | |
1378 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1379 | if (flags[flag]) | |
eccb8e8f | 1380 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1381 | |
1382 | return 0; | |
1383 | } | |
1384 | ||
420e7fab HR |
1385 | static u16 nl80211_calculate_bitrate(struct rate_info *rate) |
1386 | { | |
1387 | int modulation, streams, bitrate; | |
1388 | ||
1389 | if (!(rate->flags & RATE_INFO_FLAGS_MCS)) | |
1390 | return rate->legacy; | |
1391 | ||
1392 | /* the formula below does only work for MCS values smaller than 32 */ | |
1393 | if (rate->mcs >= 32) | |
1394 | return 0; | |
1395 | ||
1396 | modulation = rate->mcs & 7; | |
1397 | streams = (rate->mcs >> 3) + 1; | |
1398 | ||
1399 | bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ? | |
1400 | 13500000 : 6500000; | |
1401 | ||
1402 | if (modulation < 4) | |
1403 | bitrate *= (modulation + 1); | |
1404 | else if (modulation == 4) | |
1405 | bitrate *= (modulation + 2); | |
1406 | else | |
1407 | bitrate *= (modulation + 3); | |
1408 | ||
1409 | bitrate *= streams; | |
1410 | ||
1411 | if (rate->flags & RATE_INFO_FLAGS_SHORT_GI) | |
1412 | bitrate = (bitrate / 9) * 10; | |
1413 | ||
1414 | /* do NOT round down here */ | |
1415 | return (bitrate + 50000) / 100000; | |
1416 | } | |
1417 | ||
fd5b74dc JB |
1418 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1419 | int flags, struct net_device *dev, | |
2ec600d6 | 1420 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1421 | { |
1422 | void *hdr; | |
420e7fab HR |
1423 | struct nlattr *sinfoattr, *txrate; |
1424 | u16 bitrate; | |
fd5b74dc JB |
1425 | |
1426 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1427 | if (!hdr) | |
1428 | return -1; | |
1429 | ||
1430 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1431 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1432 | ||
2ec600d6 LCC |
1433 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1434 | if (!sinfoattr) | |
fd5b74dc | 1435 | goto nla_put_failure; |
2ec600d6 LCC |
1436 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1437 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1438 | sinfo->inactive_time); | |
1439 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1440 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1441 | sinfo->rx_bytes); | |
1442 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1443 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1444 | sinfo->tx_bytes); | |
1445 | if (sinfo->filled & STATION_INFO_LLID) | |
1446 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1447 | sinfo->llid); | |
1448 | if (sinfo->filled & STATION_INFO_PLID) | |
1449 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1450 | sinfo->plid); | |
1451 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1452 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1453 | sinfo->plink_state); | |
420e7fab HR |
1454 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1455 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1456 | sinfo->signal); | |
1457 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1458 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1459 | if (!txrate) | |
1460 | goto nla_put_failure; | |
1461 | ||
1462 | /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
1463 | bitrate = nl80211_calculate_bitrate(&sinfo->txrate); | |
1464 | if (bitrate > 0) | |
1465 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1466 | |
420e7fab HR |
1467 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1468 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1469 | sinfo->txrate.mcs); | |
1470 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1471 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1472 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1473 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1474 | ||
1475 | nla_nest_end(msg, txrate); | |
1476 | } | |
98c8a60a JM |
1477 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1478 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1479 | sinfo->rx_packets); | |
1480 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1481 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1482 | sinfo->tx_packets); | |
2ec600d6 | 1483 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1484 | |
1485 | return genlmsg_end(msg, hdr); | |
1486 | ||
1487 | nla_put_failure: | |
bc3ed28c TG |
1488 | genlmsg_cancel(msg, hdr); |
1489 | return -EMSGSIZE; | |
fd5b74dc JB |
1490 | } |
1491 | ||
2ec600d6 | 1492 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1493 | struct netlink_callback *cb) |
2ec600d6 | 1494 | { |
2ec600d6 LCC |
1495 | struct station_info sinfo; |
1496 | struct cfg80211_registered_device *dev; | |
bba95fef | 1497 | struct net_device *netdev; |
2ec600d6 | 1498 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1499 | int ifidx = cb->args[0]; |
1500 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1501 | int err; |
2ec600d6 | 1502 | |
bba95fef JB |
1503 | if (!ifidx) { |
1504 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1505 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1506 | nl80211_policy); | |
1507 | if (err) | |
1508 | return err; | |
2ec600d6 | 1509 | |
bba95fef JB |
1510 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
1511 | return -EINVAL; | |
2ec600d6 | 1512 | |
bba95fef JB |
1513 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
1514 | if (!ifidx) | |
1515 | return -EINVAL; | |
2ec600d6 | 1516 | } |
2ec600d6 | 1517 | |
3b85875a JB |
1518 | rtnl_lock(); |
1519 | ||
1520 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1521 | if (!netdev) { | |
1522 | err = -ENODEV; | |
1523 | goto out_rtnl; | |
1524 | } | |
2ec600d6 | 1525 | |
bba95fef JB |
1526 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
1527 | if (IS_ERR(dev)) { | |
1528 | err = PTR_ERR(dev); | |
3b85875a | 1529 | goto out_rtnl; |
bba95fef JB |
1530 | } |
1531 | ||
1532 | if (!dev->ops->dump_station) { | |
eec60b03 | 1533 | err = -EOPNOTSUPP; |
bba95fef JB |
1534 | goto out_err; |
1535 | } | |
1536 | ||
bba95fef JB |
1537 | while (1) { |
1538 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1539 | mac_addr, &sinfo); | |
1540 | if (err == -ENOENT) | |
1541 | break; | |
1542 | if (err) | |
3b85875a | 1543 | goto out_err; |
bba95fef JB |
1544 | |
1545 | if (nl80211_send_station(skb, | |
1546 | NETLINK_CB(cb->skb).pid, | |
1547 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1548 | netdev, mac_addr, | |
1549 | &sinfo) < 0) | |
1550 | goto out; | |
1551 | ||
1552 | sta_idx++; | |
1553 | } | |
1554 | ||
1555 | ||
1556 | out: | |
1557 | cb->args[1] = sta_idx; | |
1558 | err = skb->len; | |
bba95fef JB |
1559 | out_err: |
1560 | cfg80211_put_dev(dev); | |
3b85875a JB |
1561 | out_rtnl: |
1562 | rtnl_unlock(); | |
bba95fef JB |
1563 | |
1564 | return err; | |
2ec600d6 | 1565 | } |
fd5b74dc | 1566 | |
5727ef1b JB |
1567 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1568 | { | |
fd5b74dc JB |
1569 | struct cfg80211_registered_device *drv; |
1570 | int err; | |
1571 | struct net_device *dev; | |
2ec600d6 | 1572 | struct station_info sinfo; |
fd5b74dc JB |
1573 | struct sk_buff *msg; |
1574 | u8 *mac_addr = NULL; | |
1575 | ||
2ec600d6 | 1576 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1577 | |
1578 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1579 | return -EINVAL; | |
1580 | ||
1581 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1582 | ||
3b85875a JB |
1583 | rtnl_lock(); |
1584 | ||
bba95fef | 1585 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
fd5b74dc | 1586 | if (err) |
3b85875a | 1587 | goto out_rtnl; |
fd5b74dc JB |
1588 | |
1589 | if (!drv->ops->get_station) { | |
1590 | err = -EOPNOTSUPP; | |
1591 | goto out; | |
1592 | } | |
1593 | ||
2ec600d6 | 1594 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1595 | if (err) |
1596 | goto out; | |
1597 | ||
fd2120ca | 1598 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc JB |
1599 | if (!msg) |
1600 | goto out; | |
1601 | ||
1602 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1603 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1604 | goto out_free; |
1605 | ||
1606 | err = genlmsg_unicast(msg, info->snd_pid); | |
1607 | goto out; | |
1608 | ||
1609 | out_free: | |
1610 | nlmsg_free(msg); | |
fd5b74dc JB |
1611 | out: |
1612 | cfg80211_put_dev(drv); | |
1613 | dev_put(dev); | |
3b85875a JB |
1614 | out_rtnl: |
1615 | rtnl_unlock(); | |
1616 | ||
fd5b74dc | 1617 | return err; |
5727ef1b JB |
1618 | } |
1619 | ||
1620 | /* | |
1621 | * Get vlan interface making sure it is on the right wiphy. | |
1622 | */ | |
1623 | static int get_vlan(struct nlattr *vlanattr, | |
1624 | struct cfg80211_registered_device *rdev, | |
1625 | struct net_device **vlan) | |
1626 | { | |
1627 | *vlan = NULL; | |
1628 | ||
1629 | if (vlanattr) { | |
1630 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1631 | if (!*vlan) | |
1632 | return -ENODEV; | |
1633 | if (!(*vlan)->ieee80211_ptr) | |
1634 | return -EINVAL; | |
1635 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1636 | return -EINVAL; | |
1637 | } | |
1638 | return 0; | |
1639 | } | |
1640 | ||
1641 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1642 | { | |
1643 | struct cfg80211_registered_device *drv; | |
1644 | int err; | |
1645 | struct net_device *dev; | |
1646 | struct station_parameters params; | |
1647 | u8 *mac_addr = NULL; | |
1648 | ||
1649 | memset(¶ms, 0, sizeof(params)); | |
1650 | ||
1651 | params.listen_interval = -1; | |
1652 | ||
1653 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1654 | return -EINVAL; | |
1655 | ||
1656 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1657 | return -EINVAL; | |
1658 | ||
1659 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1660 | ||
1661 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1662 | params.supported_rates = | |
1663 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1664 | params.supported_rates_len = | |
1665 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1666 | } | |
1667 | ||
1668 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1669 | params.listen_interval = | |
1670 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1671 | ||
36aedc90 JM |
1672 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1673 | params.ht_capa = | |
1674 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1675 | ||
eccb8e8f | 1676 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
1677 | return -EINVAL; |
1678 | ||
2ec600d6 LCC |
1679 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1680 | params.plink_action = | |
1681 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1682 | ||
3b85875a JB |
1683 | rtnl_lock(); |
1684 | ||
bba95fef | 1685 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1686 | if (err) |
3b85875a | 1687 | goto out_rtnl; |
5727ef1b | 1688 | |
a97f4424 JB |
1689 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); |
1690 | if (err) | |
034d655e | 1691 | goto out; |
a97f4424 JB |
1692 | |
1693 | /* validate settings */ | |
1694 | err = 0; | |
1695 | ||
1696 | switch (dev->ieee80211_ptr->iftype) { | |
1697 | case NL80211_IFTYPE_AP: | |
1698 | case NL80211_IFTYPE_AP_VLAN: | |
1699 | /* disallow mesh-specific things */ | |
1700 | if (params.plink_action) | |
1701 | err = -EINVAL; | |
1702 | break; | |
1703 | case NL80211_IFTYPE_STATION: | |
1704 | /* disallow everything but AUTHORIZED flag */ | |
1705 | if (params.plink_action) | |
1706 | err = -EINVAL; | |
1707 | if (params.vlan) | |
1708 | err = -EINVAL; | |
1709 | if (params.supported_rates) | |
1710 | err = -EINVAL; | |
1711 | if (params.ht_capa) | |
1712 | err = -EINVAL; | |
1713 | if (params.listen_interval >= 0) | |
1714 | err = -EINVAL; | |
1715 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
1716 | err = -EINVAL; | |
1717 | break; | |
1718 | case NL80211_IFTYPE_MESH_POINT: | |
1719 | /* disallow things mesh doesn't support */ | |
1720 | if (params.vlan) | |
1721 | err = -EINVAL; | |
1722 | if (params.ht_capa) | |
1723 | err = -EINVAL; | |
1724 | if (params.listen_interval >= 0) | |
1725 | err = -EINVAL; | |
1726 | if (params.supported_rates) | |
1727 | err = -EINVAL; | |
1728 | if (params.sta_flags_mask) | |
1729 | err = -EINVAL; | |
1730 | break; | |
1731 | default: | |
1732 | err = -EINVAL; | |
034d655e JB |
1733 | } |
1734 | ||
5727ef1b JB |
1735 | if (err) |
1736 | goto out; | |
1737 | ||
1738 | if (!drv->ops->change_station) { | |
1739 | err = -EOPNOTSUPP; | |
1740 | goto out; | |
1741 | } | |
1742 | ||
5727ef1b | 1743 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1744 | |
1745 | out: | |
1746 | if (params.vlan) | |
1747 | dev_put(params.vlan); | |
1748 | cfg80211_put_dev(drv); | |
1749 | dev_put(dev); | |
3b85875a JB |
1750 | out_rtnl: |
1751 | rtnl_unlock(); | |
1752 | ||
5727ef1b JB |
1753 | return err; |
1754 | } | |
1755 | ||
1756 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1757 | { | |
1758 | struct cfg80211_registered_device *drv; | |
1759 | int err; | |
1760 | struct net_device *dev; | |
1761 | struct station_parameters params; | |
1762 | u8 *mac_addr = NULL; | |
1763 | ||
1764 | memset(¶ms, 0, sizeof(params)); | |
1765 | ||
1766 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1767 | return -EINVAL; | |
1768 | ||
5727ef1b JB |
1769 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
1770 | return -EINVAL; | |
1771 | ||
1772 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1773 | return -EINVAL; | |
1774 | ||
1775 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1776 | params.supported_rates = | |
1777 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1778 | params.supported_rates_len = | |
1779 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1780 | params.listen_interval = | |
1781 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 1782 | |
a97f4424 JB |
1783 | if (info->attrs[NL80211_ATTR_STA_AID]) { |
1784 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
1785 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
1786 | return -EINVAL; | |
1787 | } | |
51b50fbe | 1788 | |
36aedc90 JM |
1789 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1790 | params.ht_capa = | |
1791 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 1792 | |
eccb8e8f | 1793 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
1794 | return -EINVAL; |
1795 | ||
3b85875a JB |
1796 | rtnl_lock(); |
1797 | ||
bba95fef | 1798 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1799 | if (err) |
3b85875a | 1800 | goto out_rtnl; |
5727ef1b | 1801 | |
a97f4424 JB |
1802 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); |
1803 | if (err) | |
e80cf853 | 1804 | goto out; |
a97f4424 JB |
1805 | |
1806 | /* validate settings */ | |
1807 | err = 0; | |
1808 | ||
1809 | switch (dev->ieee80211_ptr->iftype) { | |
1810 | case NL80211_IFTYPE_AP: | |
1811 | case NL80211_IFTYPE_AP_VLAN: | |
1812 | /* all ok but must have AID */ | |
1813 | if (!params.aid) | |
1814 | err = -EINVAL; | |
1815 | break; | |
1816 | case NL80211_IFTYPE_MESH_POINT: | |
1817 | /* disallow things mesh doesn't support */ | |
1818 | if (params.vlan) | |
1819 | err = -EINVAL; | |
1820 | if (params.aid) | |
1821 | err = -EINVAL; | |
1822 | if (params.ht_capa) | |
1823 | err = -EINVAL; | |
1824 | if (params.listen_interval >= 0) | |
1825 | err = -EINVAL; | |
1826 | if (params.supported_rates) | |
1827 | err = -EINVAL; | |
1828 | if (params.sta_flags_mask) | |
1829 | err = -EINVAL; | |
1830 | break; | |
1831 | default: | |
1832 | err = -EINVAL; | |
e80cf853 JB |
1833 | } |
1834 | ||
5727ef1b JB |
1835 | if (err) |
1836 | goto out; | |
1837 | ||
1838 | if (!drv->ops->add_station) { | |
1839 | err = -EOPNOTSUPP; | |
1840 | goto out; | |
1841 | } | |
1842 | ||
35a8efe1 JM |
1843 | if (!netif_running(dev)) { |
1844 | err = -ENETDOWN; | |
1845 | goto out; | |
1846 | } | |
1847 | ||
5727ef1b | 1848 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1849 | |
1850 | out: | |
1851 | if (params.vlan) | |
1852 | dev_put(params.vlan); | |
1853 | cfg80211_put_dev(drv); | |
1854 | dev_put(dev); | |
3b85875a JB |
1855 | out_rtnl: |
1856 | rtnl_unlock(); | |
1857 | ||
5727ef1b JB |
1858 | return err; |
1859 | } | |
1860 | ||
1861 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1862 | { | |
1863 | struct cfg80211_registered_device *drv; | |
1864 | int err; | |
1865 | struct net_device *dev; | |
1866 | u8 *mac_addr = NULL; | |
1867 | ||
1868 | if (info->attrs[NL80211_ATTR_MAC]) | |
1869 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1870 | ||
3b85875a JB |
1871 | rtnl_lock(); |
1872 | ||
bba95fef | 1873 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1874 | if (err) |
3b85875a | 1875 | goto out_rtnl; |
5727ef1b | 1876 | |
e80cf853 | 1877 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
155cc9e4 AY |
1878 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
1879 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { | |
e80cf853 JB |
1880 | err = -EINVAL; |
1881 | goto out; | |
1882 | } | |
1883 | ||
5727ef1b JB |
1884 | if (!drv->ops->del_station) { |
1885 | err = -EOPNOTSUPP; | |
1886 | goto out; | |
1887 | } | |
1888 | ||
5727ef1b | 1889 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); |
5727ef1b JB |
1890 | |
1891 | out: | |
1892 | cfg80211_put_dev(drv); | |
1893 | dev_put(dev); | |
3b85875a JB |
1894 | out_rtnl: |
1895 | rtnl_unlock(); | |
1896 | ||
5727ef1b JB |
1897 | return err; |
1898 | } | |
1899 | ||
2ec600d6 LCC |
1900 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1901 | int flags, struct net_device *dev, | |
1902 | u8 *dst, u8 *next_hop, | |
1903 | struct mpath_info *pinfo) | |
1904 | { | |
1905 | void *hdr; | |
1906 | struct nlattr *pinfoattr; | |
1907 | ||
1908 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1909 | if (!hdr) | |
1910 | return -1; | |
1911 | ||
1912 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1913 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1914 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1915 | ||
1916 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1917 | if (!pinfoattr) | |
1918 | goto nla_put_failure; | |
1919 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1920 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1921 | pinfo->frame_qlen); | |
1922 | if (pinfo->filled & MPATH_INFO_DSN) | |
1923 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1924 | pinfo->dsn); | |
1925 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1926 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1927 | pinfo->metric); | |
1928 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1929 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1930 | pinfo->exptime); | |
1931 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1932 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1933 | pinfo->flags); | |
1934 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1935 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1936 | pinfo->discovery_timeout); | |
1937 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1938 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1939 | pinfo->discovery_retries); | |
1940 | ||
1941 | nla_nest_end(msg, pinfoattr); | |
1942 | ||
1943 | return genlmsg_end(msg, hdr); | |
1944 | ||
1945 | nla_put_failure: | |
bc3ed28c TG |
1946 | genlmsg_cancel(msg, hdr); |
1947 | return -EMSGSIZE; | |
2ec600d6 LCC |
1948 | } |
1949 | ||
1950 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 1951 | struct netlink_callback *cb) |
2ec600d6 | 1952 | { |
2ec600d6 LCC |
1953 | struct mpath_info pinfo; |
1954 | struct cfg80211_registered_device *dev; | |
bba95fef | 1955 | struct net_device *netdev; |
2ec600d6 LCC |
1956 | u8 dst[ETH_ALEN]; |
1957 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
1958 | int ifidx = cb->args[0]; |
1959 | int path_idx = cb->args[1]; | |
2ec600d6 | 1960 | int err; |
2ec600d6 | 1961 | |
bba95fef JB |
1962 | if (!ifidx) { |
1963 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1964 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1965 | nl80211_policy); | |
1966 | if (err) | |
1967 | return err; | |
1968 | ||
1969 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
1970 | return -EINVAL; | |
1971 | ||
1972 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
1973 | if (!ifidx) | |
1974 | return -EINVAL; | |
1975 | } | |
1976 | ||
3b85875a JB |
1977 | rtnl_lock(); |
1978 | ||
1979 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1980 | if (!netdev) { | |
1981 | err = -ENODEV; | |
1982 | goto out_rtnl; | |
1983 | } | |
bba95fef JB |
1984 | |
1985 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
1986 | if (IS_ERR(dev)) { | |
1987 | err = PTR_ERR(dev); | |
3b85875a | 1988 | goto out_rtnl; |
bba95fef JB |
1989 | } |
1990 | ||
1991 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 1992 | err = -EOPNOTSUPP; |
bba95fef JB |
1993 | goto out_err; |
1994 | } | |
1995 | ||
eec60b03 JM |
1996 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1997 | err = -EOPNOTSUPP; | |
1998 | goto out; | |
1999 | } | |
2000 | ||
bba95fef JB |
2001 | while (1) { |
2002 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2003 | dst, next_hop, &pinfo); | |
2004 | if (err == -ENOENT) | |
2ec600d6 | 2005 | break; |
bba95fef | 2006 | if (err) |
3b85875a | 2007 | goto out_err; |
2ec600d6 | 2008 | |
bba95fef JB |
2009 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2010 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2011 | netdev, dst, next_hop, | |
2012 | &pinfo) < 0) | |
2013 | goto out; | |
2ec600d6 | 2014 | |
bba95fef | 2015 | path_idx++; |
2ec600d6 | 2016 | } |
2ec600d6 | 2017 | |
2ec600d6 | 2018 | |
bba95fef JB |
2019 | out: |
2020 | cb->args[1] = path_idx; | |
2021 | err = skb->len; | |
bba95fef JB |
2022 | out_err: |
2023 | cfg80211_put_dev(dev); | |
3b85875a JB |
2024 | out_rtnl: |
2025 | rtnl_unlock(); | |
bba95fef JB |
2026 | |
2027 | return err; | |
2ec600d6 LCC |
2028 | } |
2029 | ||
2030 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2031 | { | |
2032 | struct cfg80211_registered_device *drv; | |
2033 | int err; | |
2034 | struct net_device *dev; | |
2035 | struct mpath_info pinfo; | |
2036 | struct sk_buff *msg; | |
2037 | u8 *dst = NULL; | |
2038 | u8 next_hop[ETH_ALEN]; | |
2039 | ||
2040 | memset(&pinfo, 0, sizeof(pinfo)); | |
2041 | ||
2042 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2043 | return -EINVAL; | |
2044 | ||
2045 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2046 | ||
3b85875a JB |
2047 | rtnl_lock(); |
2048 | ||
bba95fef | 2049 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 2050 | if (err) |
3b85875a | 2051 | goto out_rtnl; |
2ec600d6 LCC |
2052 | |
2053 | if (!drv->ops->get_mpath) { | |
2054 | err = -EOPNOTSUPP; | |
2055 | goto out; | |
2056 | } | |
2057 | ||
eec60b03 JM |
2058 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2059 | err = -EOPNOTSUPP; | |
2060 | goto out; | |
2061 | } | |
2062 | ||
2ec600d6 | 2063 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
2064 | if (err) |
2065 | goto out; | |
2066 | ||
fd2120ca | 2067 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 LCC |
2068 | if (!msg) |
2069 | goto out; | |
2070 | ||
2071 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
2072 | dev, dst, next_hop, &pinfo) < 0) | |
2073 | goto out_free; | |
2074 | ||
2075 | err = genlmsg_unicast(msg, info->snd_pid); | |
2076 | goto out; | |
2077 | ||
2078 | out_free: | |
2079 | nlmsg_free(msg); | |
2ec600d6 LCC |
2080 | out: |
2081 | cfg80211_put_dev(drv); | |
2082 | dev_put(dev); | |
3b85875a JB |
2083 | out_rtnl: |
2084 | rtnl_unlock(); | |
2085 | ||
2ec600d6 LCC |
2086 | return err; |
2087 | } | |
2088 | ||
2089 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2090 | { | |
2091 | struct cfg80211_registered_device *drv; | |
2092 | int err; | |
2093 | struct net_device *dev; | |
2094 | u8 *dst = NULL; | |
2095 | u8 *next_hop = NULL; | |
2096 | ||
2097 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2098 | return -EINVAL; | |
2099 | ||
2100 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2101 | return -EINVAL; | |
2102 | ||
2103 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2104 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2105 | ||
3b85875a JB |
2106 | rtnl_lock(); |
2107 | ||
bba95fef | 2108 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 2109 | if (err) |
3b85875a | 2110 | goto out_rtnl; |
2ec600d6 LCC |
2111 | |
2112 | if (!drv->ops->change_mpath) { | |
2113 | err = -EOPNOTSUPP; | |
2114 | goto out; | |
2115 | } | |
2116 | ||
eec60b03 JM |
2117 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2118 | err = -EOPNOTSUPP; | |
2119 | goto out; | |
2120 | } | |
2121 | ||
35a8efe1 JM |
2122 | if (!netif_running(dev)) { |
2123 | err = -ENETDOWN; | |
2124 | goto out; | |
2125 | } | |
2126 | ||
2ec600d6 | 2127 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2128 | |
2129 | out: | |
2130 | cfg80211_put_dev(drv); | |
2131 | dev_put(dev); | |
3b85875a JB |
2132 | out_rtnl: |
2133 | rtnl_unlock(); | |
2134 | ||
2ec600d6 LCC |
2135 | return err; |
2136 | } | |
2137 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
2138 | { | |
2139 | struct cfg80211_registered_device *drv; | |
2140 | int err; | |
2141 | struct net_device *dev; | |
2142 | u8 *dst = NULL; | |
2143 | u8 *next_hop = NULL; | |
2144 | ||
2145 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2146 | return -EINVAL; | |
2147 | ||
2148 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2149 | return -EINVAL; | |
2150 | ||
2151 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2152 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2153 | ||
3b85875a JB |
2154 | rtnl_lock(); |
2155 | ||
bba95fef | 2156 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 2157 | if (err) |
3b85875a | 2158 | goto out_rtnl; |
2ec600d6 LCC |
2159 | |
2160 | if (!drv->ops->add_mpath) { | |
2161 | err = -EOPNOTSUPP; | |
2162 | goto out; | |
2163 | } | |
2164 | ||
eec60b03 JM |
2165 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2166 | err = -EOPNOTSUPP; | |
2167 | goto out; | |
2168 | } | |
2169 | ||
35a8efe1 JM |
2170 | if (!netif_running(dev)) { |
2171 | err = -ENETDOWN; | |
2172 | goto out; | |
2173 | } | |
2174 | ||
2ec600d6 | 2175 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2176 | |
2177 | out: | |
2178 | cfg80211_put_dev(drv); | |
2179 | dev_put(dev); | |
3b85875a JB |
2180 | out_rtnl: |
2181 | rtnl_unlock(); | |
2182 | ||
2ec600d6 LCC |
2183 | return err; |
2184 | } | |
2185 | ||
2186 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2187 | { | |
2188 | struct cfg80211_registered_device *drv; | |
2189 | int err; | |
2190 | struct net_device *dev; | |
2191 | u8 *dst = NULL; | |
2192 | ||
2193 | if (info->attrs[NL80211_ATTR_MAC]) | |
2194 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2195 | ||
3b85875a JB |
2196 | rtnl_lock(); |
2197 | ||
bba95fef | 2198 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 2199 | if (err) |
3b85875a | 2200 | goto out_rtnl; |
2ec600d6 LCC |
2201 | |
2202 | if (!drv->ops->del_mpath) { | |
2203 | err = -EOPNOTSUPP; | |
2204 | goto out; | |
2205 | } | |
2206 | ||
2ec600d6 | 2207 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); |
2ec600d6 LCC |
2208 | |
2209 | out: | |
2210 | cfg80211_put_dev(drv); | |
2211 | dev_put(dev); | |
3b85875a JB |
2212 | out_rtnl: |
2213 | rtnl_unlock(); | |
2214 | ||
2ec600d6 LCC |
2215 | return err; |
2216 | } | |
2217 | ||
9f1ba906 JM |
2218 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2219 | { | |
2220 | struct cfg80211_registered_device *drv; | |
2221 | int err; | |
2222 | struct net_device *dev; | |
2223 | struct bss_parameters params; | |
2224 | ||
2225 | memset(¶ms, 0, sizeof(params)); | |
2226 | /* default to not changing parameters */ | |
2227 | params.use_cts_prot = -1; | |
2228 | params.use_short_preamble = -1; | |
2229 | params.use_short_slot_time = -1; | |
2230 | ||
2231 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2232 | params.use_cts_prot = | |
2233 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2234 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2235 | params.use_short_preamble = | |
2236 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2237 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2238 | params.use_short_slot_time = | |
2239 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2240 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2241 | params.basic_rates = | |
2242 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2243 | params.basic_rates_len = | |
2244 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2245 | } | |
9f1ba906 | 2246 | |
3b85875a JB |
2247 | rtnl_lock(); |
2248 | ||
9f1ba906 JM |
2249 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2250 | if (err) | |
3b85875a | 2251 | goto out_rtnl; |
9f1ba906 JM |
2252 | |
2253 | if (!drv->ops->change_bss) { | |
2254 | err = -EOPNOTSUPP; | |
2255 | goto out; | |
2256 | } | |
2257 | ||
eec60b03 JM |
2258 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2259 | err = -EOPNOTSUPP; | |
2260 | goto out; | |
2261 | } | |
2262 | ||
9f1ba906 | 2263 | err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms); |
9f1ba906 JM |
2264 | |
2265 | out: | |
2266 | cfg80211_put_dev(drv); | |
2267 | dev_put(dev); | |
3b85875a JB |
2268 | out_rtnl: |
2269 | rtnl_unlock(); | |
2270 | ||
9f1ba906 JM |
2271 | return err; |
2272 | } | |
2273 | ||
b2e1b302 LR |
2274 | static const struct nla_policy |
2275 | reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
2276 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
2277 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2278 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2279 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2280 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2281 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2282 | }; | |
2283 | ||
2284 | static int parse_reg_rule(struct nlattr *tb[], | |
2285 | struct ieee80211_reg_rule *reg_rule) | |
2286 | { | |
2287 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2288 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2289 | ||
2290 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2291 | return -EINVAL; | |
2292 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2293 | return -EINVAL; | |
2294 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2295 | return -EINVAL; | |
2296 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2297 | return -EINVAL; | |
2298 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2299 | return -EINVAL; | |
2300 | ||
2301 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2302 | ||
2303 | freq_range->start_freq_khz = | |
2304 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2305 | freq_range->end_freq_khz = | |
2306 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2307 | freq_range->max_bandwidth_khz = | |
2308 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2309 | ||
2310 | power_rule->max_eirp = | |
2311 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2312 | ||
2313 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2314 | power_rule->max_antenna_gain = | |
2315 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2316 | ||
2317 | return 0; | |
2318 | } | |
2319 | ||
2320 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2321 | { | |
2322 | int r; | |
2323 | char *data = NULL; | |
2324 | ||
80778f18 LR |
2325 | /* |
2326 | * You should only get this when cfg80211 hasn't yet initialized | |
2327 | * completely when built-in to the kernel right between the time | |
2328 | * window between nl80211_init() and regulatory_init(), if that is | |
2329 | * even possible. | |
2330 | */ | |
2331 | mutex_lock(&cfg80211_mutex); | |
2332 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2333 | mutex_unlock(&cfg80211_mutex); |
2334 | return -EINPROGRESS; | |
80778f18 | 2335 | } |
fe33eb39 | 2336 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2337 | |
fe33eb39 LR |
2338 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2339 | return -EINVAL; | |
b2e1b302 LR |
2340 | |
2341 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2342 | ||
2343 | #ifdef CONFIG_WIRELESS_OLD_REGULATORY | |
2344 | /* We ignore world regdom requests with the old regdom setup */ | |
fe33eb39 LR |
2345 | if (is_world_regdom(data)) |
2346 | return -EINVAL; | |
b2e1b302 | 2347 | #endif |
fe33eb39 LR |
2348 | |
2349 | r = regulatory_hint_user(data); | |
2350 | ||
b2e1b302 LR |
2351 | return r; |
2352 | } | |
2353 | ||
93da9cc1 | 2354 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2355 | struct genl_info *info) | |
2356 | { | |
2357 | struct cfg80211_registered_device *drv; | |
2358 | struct mesh_config cur_params; | |
2359 | int err; | |
2360 | struct net_device *dev; | |
2361 | void *hdr; | |
2362 | struct nlattr *pinfoattr; | |
2363 | struct sk_buff *msg; | |
2364 | ||
3b85875a JB |
2365 | rtnl_lock(); |
2366 | ||
93da9cc1 | 2367 | /* Look up our device */ |
2368 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2369 | if (err) | |
3b85875a | 2370 | goto out_rtnl; |
93da9cc1 | 2371 | |
f3f92586 JM |
2372 | if (!drv->ops->get_mesh_params) { |
2373 | err = -EOPNOTSUPP; | |
2374 | goto out; | |
2375 | } | |
2376 | ||
93da9cc1 | 2377 | /* Get the mesh params */ |
93da9cc1 | 2378 | err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params); |
93da9cc1 | 2379 | if (err) |
2380 | goto out; | |
2381 | ||
2382 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2383 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
93da9cc1 | 2384 | if (!msg) { |
2385 | err = -ENOBUFS; | |
2386 | goto out; | |
2387 | } | |
2388 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2389 | NL80211_CMD_GET_MESH_PARAMS); | |
2390 | if (!hdr) | |
2391 | goto nla_put_failure; | |
2392 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2393 | if (!pinfoattr) | |
2394 | goto nla_put_failure; | |
2395 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2396 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2397 | cur_params.dot11MeshRetryTimeout); | |
2398 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2399 | cur_params.dot11MeshConfirmTimeout); | |
2400 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2401 | cur_params.dot11MeshHoldingTimeout); | |
2402 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2403 | cur_params.dot11MeshMaxPeerLinks); | |
2404 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2405 | cur_params.dot11MeshMaxRetries); | |
2406 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2407 | cur_params.dot11MeshTTL); | |
2408 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2409 | cur_params.auto_open_plinks); | |
2410 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2411 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2412 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2413 | cur_params.path_refresh_time); | |
2414 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2415 | cur_params.min_discovery_timeout); | |
2416 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2417 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2418 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2419 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2420 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2421 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
2422 | nla_nest_end(msg, pinfoattr); | |
2423 | genlmsg_end(msg, hdr); | |
2424 | err = genlmsg_unicast(msg, info->snd_pid); | |
2425 | goto out; | |
2426 | ||
3b85875a | 2427 | nla_put_failure: |
93da9cc1 | 2428 | genlmsg_cancel(msg, hdr); |
2429 | err = -EMSGSIZE; | |
3b85875a | 2430 | out: |
93da9cc1 | 2431 | /* Cleanup */ |
2432 | cfg80211_put_dev(drv); | |
2433 | dev_put(dev); | |
3b85875a JB |
2434 | out_rtnl: |
2435 | rtnl_unlock(); | |
2436 | ||
93da9cc1 | 2437 | return err; |
2438 | } | |
2439 | ||
2440 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2441 | do {\ | |
2442 | if (table[attr_num]) {\ | |
2443 | cfg.param = nla_fn(table[attr_num]); \ | |
2444 | mask |= (1 << (attr_num - 1)); \ | |
2445 | } \ | |
2446 | } while (0);\ | |
2447 | ||
2448 | static struct nla_policy | |
2449 | nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = { | |
2450 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
2451 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2452 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2453 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2454 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2455 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2456 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2457 | ||
2458 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2459 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2460 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2461 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2462 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2463 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2464 | }; | |
2465 | ||
2466 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2467 | { | |
2468 | int err; | |
2469 | u32 mask; | |
2470 | struct cfg80211_registered_device *drv; | |
2471 | struct net_device *dev; | |
2472 | struct mesh_config cfg; | |
2473 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2474 | struct nlattr *parent_attr; | |
2475 | ||
2476 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2477 | if (!parent_attr) | |
2478 | return -EINVAL; | |
2479 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2480 | parent_attr, nl80211_meshconf_params_policy)) | |
2481 | return -EINVAL; | |
2482 | ||
3b85875a JB |
2483 | rtnl_lock(); |
2484 | ||
93da9cc1 | 2485 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2486 | if (err) | |
3b85875a | 2487 | goto out_rtnl; |
93da9cc1 | 2488 | |
f3f92586 JM |
2489 | if (!drv->ops->set_mesh_params) { |
2490 | err = -EOPNOTSUPP; | |
2491 | goto out; | |
2492 | } | |
2493 | ||
93da9cc1 | 2494 | /* This makes sure that there aren't more than 32 mesh config |
2495 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2496 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2497 | ||
2498 | /* Fill in the params struct */ | |
2499 | mask = 0; | |
2500 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2501 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2502 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2503 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2504 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2505 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2506 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2507 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2508 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2509 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2510 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2511 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2512 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2513 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2514 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2515 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2516 | nla_get_u8); | |
2517 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2518 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2519 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2520 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2521 | nla_get_u16); | |
2522 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2523 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2524 | nla_get_u32); | |
2525 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2526 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2527 | nla_get_u16); | |
2528 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2529 | dot11MeshHWMPnetDiameterTraversalTime, | |
2530 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2531 | nla_get_u16); | |
2532 | ||
2533 | /* Apply changes */ | |
93da9cc1 | 2534 | err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask); |
93da9cc1 | 2535 | |
f3f92586 | 2536 | out: |
93da9cc1 | 2537 | /* cleanup */ |
2538 | cfg80211_put_dev(drv); | |
2539 | dev_put(dev); | |
3b85875a JB |
2540 | out_rtnl: |
2541 | rtnl_unlock(); | |
2542 | ||
93da9cc1 | 2543 | return err; |
2544 | } | |
2545 | ||
2546 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2547 | ||
f130347c LR |
2548 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2549 | { | |
2550 | struct sk_buff *msg; | |
2551 | void *hdr = NULL; | |
2552 | struct nlattr *nl_reg_rules; | |
2553 | unsigned int i; | |
2554 | int err = -EINVAL; | |
2555 | ||
a1794390 | 2556 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2557 | |
2558 | if (!cfg80211_regdomain) | |
2559 | goto out; | |
2560 | ||
fd2120ca | 2561 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2562 | if (!msg) { |
2563 | err = -ENOBUFS; | |
2564 | goto out; | |
2565 | } | |
2566 | ||
2567 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2568 | NL80211_CMD_GET_REG); | |
2569 | if (!hdr) | |
2570 | goto nla_put_failure; | |
2571 | ||
2572 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2573 | cfg80211_regdomain->alpha2); | |
2574 | ||
2575 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2576 | if (!nl_reg_rules) | |
2577 | goto nla_put_failure; | |
2578 | ||
2579 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2580 | struct nlattr *nl_reg_rule; | |
2581 | const struct ieee80211_reg_rule *reg_rule; | |
2582 | const struct ieee80211_freq_range *freq_range; | |
2583 | const struct ieee80211_power_rule *power_rule; | |
2584 | ||
2585 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2586 | freq_range = ®_rule->freq_range; | |
2587 | power_rule = ®_rule->power_rule; | |
2588 | ||
2589 | nl_reg_rule = nla_nest_start(msg, i); | |
2590 | if (!nl_reg_rule) | |
2591 | goto nla_put_failure; | |
2592 | ||
2593 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2594 | reg_rule->flags); | |
2595 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2596 | freq_range->start_freq_khz); | |
2597 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2598 | freq_range->end_freq_khz); | |
2599 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2600 | freq_range->max_bandwidth_khz); | |
2601 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2602 | power_rule->max_antenna_gain); | |
2603 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2604 | power_rule->max_eirp); | |
2605 | ||
2606 | nla_nest_end(msg, nl_reg_rule); | |
2607 | } | |
2608 | ||
2609 | nla_nest_end(msg, nl_reg_rules); | |
2610 | ||
2611 | genlmsg_end(msg, hdr); | |
2612 | err = genlmsg_unicast(msg, info->snd_pid); | |
2613 | goto out; | |
2614 | ||
2615 | nla_put_failure: | |
2616 | genlmsg_cancel(msg, hdr); | |
2617 | err = -EMSGSIZE; | |
2618 | out: | |
a1794390 | 2619 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2620 | return err; |
2621 | } | |
2622 | ||
b2e1b302 LR |
2623 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2624 | { | |
2625 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2626 | struct nlattr *nl_reg_rule; | |
2627 | char *alpha2 = NULL; | |
2628 | int rem_reg_rules = 0, r = 0; | |
2629 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2630 | struct ieee80211_regdomain *rd = NULL; | |
2631 | ||
2632 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2633 | return -EINVAL; | |
2634 | ||
2635 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2636 | return -EINVAL; | |
2637 | ||
2638 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2639 | ||
2640 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2641 | rem_reg_rules) { | |
2642 | num_rules++; | |
2643 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2644 | return -EINVAL; |
b2e1b302 LR |
2645 | } |
2646 | ||
61405e97 LR |
2647 | mutex_lock(&cfg80211_mutex); |
2648 | ||
d0e18f83 LR |
2649 | if (!reg_is_valid_request(alpha2)) { |
2650 | r = -EINVAL; | |
2651 | goto bad_reg; | |
2652 | } | |
b2e1b302 LR |
2653 | |
2654 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2655 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2656 | ||
2657 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2658 | if (!rd) { |
2659 | r = -ENOMEM; | |
2660 | goto bad_reg; | |
2661 | } | |
b2e1b302 LR |
2662 | |
2663 | rd->n_reg_rules = num_rules; | |
2664 | rd->alpha2[0] = alpha2[0]; | |
2665 | rd->alpha2[1] = alpha2[1]; | |
2666 | ||
2667 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2668 | rem_reg_rules) { | |
2669 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2670 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2671 | reg_rule_policy); | |
2672 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2673 | if (r) | |
2674 | goto bad_reg; | |
2675 | ||
2676 | rule_idx++; | |
2677 | ||
d0e18f83 LR |
2678 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2679 | r = -EINVAL; | |
b2e1b302 | 2680 | goto bad_reg; |
d0e18f83 | 2681 | } |
b2e1b302 LR |
2682 | } |
2683 | ||
2684 | BUG_ON(rule_idx != num_rules); | |
2685 | ||
b2e1b302 | 2686 | r = set_regdom(rd); |
61405e97 | 2687 | |
a1794390 | 2688 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2689 | |
b2e1b302 LR |
2690 | return r; |
2691 | ||
d2372b31 | 2692 | bad_reg: |
61405e97 | 2693 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2694 | kfree(rd); |
d0e18f83 | 2695 | return r; |
b2e1b302 LR |
2696 | } |
2697 | ||
83f5e2cf JB |
2698 | static int validate_scan_freqs(struct nlattr *freqs) |
2699 | { | |
2700 | struct nlattr *attr1, *attr2; | |
2701 | int n_channels = 0, tmp1, tmp2; | |
2702 | ||
2703 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2704 | n_channels++; | |
2705 | /* | |
2706 | * Some hardware has a limited channel list for | |
2707 | * scanning, and it is pretty much nonsensical | |
2708 | * to scan for a channel twice, so disallow that | |
2709 | * and don't require drivers to check that the | |
2710 | * channel list they get isn't longer than what | |
2711 | * they can scan, as long as they can scan all | |
2712 | * the channels they registered at once. | |
2713 | */ | |
2714 | nla_for_each_nested(attr2, freqs, tmp2) | |
2715 | if (attr1 != attr2 && | |
2716 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2717 | return 0; | |
2718 | } | |
2719 | ||
2720 | return n_channels; | |
2721 | } | |
2722 | ||
2a519311 JB |
2723 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2724 | { | |
2725 | struct cfg80211_registered_device *drv; | |
2726 | struct net_device *dev; | |
2727 | struct cfg80211_scan_request *request; | |
2728 | struct cfg80211_ssid *ssid; | |
2729 | struct ieee80211_channel *channel; | |
2730 | struct nlattr *attr; | |
2731 | struct wiphy *wiphy; | |
83f5e2cf | 2732 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2733 | enum ieee80211_band band; |
70692ad2 | 2734 | size_t ie_len; |
2a519311 | 2735 | |
f4a11bb0 JB |
2736 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2737 | return -EINVAL; | |
2738 | ||
3b85875a JB |
2739 | rtnl_lock(); |
2740 | ||
2a519311 JB |
2741 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2742 | if (err) | |
3b85875a | 2743 | goto out_rtnl; |
2a519311 JB |
2744 | |
2745 | wiphy = &drv->wiphy; | |
2746 | ||
2747 | if (!drv->ops->scan) { | |
2748 | err = -EOPNOTSUPP; | |
2749 | goto out; | |
2750 | } | |
2751 | ||
35a8efe1 JM |
2752 | if (!netif_running(dev)) { |
2753 | err = -ENETDOWN; | |
2754 | goto out; | |
2755 | } | |
2756 | ||
2a519311 JB |
2757 | if (drv->scan_req) { |
2758 | err = -EBUSY; | |
3b85875a | 2759 | goto out; |
2a519311 JB |
2760 | } |
2761 | ||
2762 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2763 | n_channels = validate_scan_freqs( |
2764 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
2a519311 JB |
2765 | if (!n_channels) { |
2766 | err = -EINVAL; | |
3b85875a | 2767 | goto out; |
2a519311 JB |
2768 | } |
2769 | } else { | |
83f5e2cf JB |
2770 | n_channels = 0; |
2771 | ||
2a519311 JB |
2772 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2773 | if (wiphy->bands[band]) | |
2774 | n_channels += wiphy->bands[band]->n_channels; | |
2775 | } | |
2776 | ||
2777 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2778 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2779 | n_ssids++; | |
2780 | ||
2781 | if (n_ssids > wiphy->max_scan_ssids) { | |
2782 | err = -EINVAL; | |
3b85875a | 2783 | goto out; |
2a519311 JB |
2784 | } |
2785 | ||
70692ad2 JM |
2786 | if (info->attrs[NL80211_ATTR_IE]) |
2787 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2788 | else | |
2789 | ie_len = 0; | |
2790 | ||
18a83659 JB |
2791 | if (ie_len > wiphy->max_scan_ie_len) { |
2792 | err = -EINVAL; | |
2793 | goto out; | |
2794 | } | |
2795 | ||
2a519311 JB |
2796 | request = kzalloc(sizeof(*request) |
2797 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
2798 | + sizeof(channel) * n_channels |
2799 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
2800 | if (!request) { |
2801 | err = -ENOMEM; | |
3b85875a | 2802 | goto out; |
2a519311 JB |
2803 | } |
2804 | ||
2805 | request->channels = (void *)((char *)request + sizeof(*request)); | |
2806 | request->n_channels = n_channels; | |
2807 | if (n_ssids) | |
2808 | request->ssids = (void *)(request->channels + n_channels); | |
2809 | request->n_ssids = n_ssids; | |
70692ad2 JM |
2810 | if (ie_len) { |
2811 | if (request->ssids) | |
2812 | request->ie = (void *)(request->ssids + n_ssids); | |
2813 | else | |
2814 | request->ie = (void *)(request->channels + n_channels); | |
2815 | } | |
2a519311 JB |
2816 | |
2817 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
2818 | /* user specified, bail out if channel not found */ | |
2819 | request->n_channels = n_channels; | |
2820 | i = 0; | |
2821 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { | |
2822 | request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
2823 | if (!request->channels[i]) { | |
2824 | err = -EINVAL; | |
2825 | goto out_free; | |
2826 | } | |
2827 | i++; | |
2828 | } | |
2829 | } else { | |
2830 | /* all channels */ | |
2831 | i = 0; | |
2832 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
2833 | int j; | |
2834 | if (!wiphy->bands[band]) | |
2835 | continue; | |
2836 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
2837 | request->channels[i] = &wiphy->bands[band]->channels[j]; | |
2838 | i++; | |
2839 | } | |
2840 | } | |
2841 | } | |
2842 | ||
2843 | i = 0; | |
2844 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
2845 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
2846 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
2847 | err = -EINVAL; | |
2848 | goto out_free; | |
2849 | } | |
2850 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
2851 | request->ssids[i].ssid_len = nla_len(attr); | |
2852 | i++; | |
2853 | } | |
2854 | } | |
2855 | ||
70692ad2 JM |
2856 | if (info->attrs[NL80211_ATTR_IE]) { |
2857 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
2858 | memcpy((void *)request->ie, |
2859 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
2860 | request->ie_len); |
2861 | } | |
2862 | ||
2a519311 JB |
2863 | request->ifidx = dev->ifindex; |
2864 | request->wiphy = &drv->wiphy; | |
2865 | ||
2866 | drv->scan_req = request; | |
2867 | err = drv->ops->scan(&drv->wiphy, dev, request); | |
2868 | ||
a538e2d5 JB |
2869 | if (!err) |
2870 | nl80211_send_scan_start(drv, dev); | |
2871 | ||
2a519311 JB |
2872 | out_free: |
2873 | if (err) { | |
2874 | drv->scan_req = NULL; | |
2875 | kfree(request); | |
2876 | } | |
2a519311 JB |
2877 | out: |
2878 | cfg80211_put_dev(drv); | |
2879 | dev_put(dev); | |
3b85875a JB |
2880 | out_rtnl: |
2881 | rtnl_unlock(); | |
2882 | ||
2a519311 JB |
2883 | return err; |
2884 | } | |
2885 | ||
2886 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
2887 | struct cfg80211_registered_device *rdev, | |
2888 | struct net_device *dev, | |
2889 | struct cfg80211_bss *res) | |
2890 | { | |
2891 | void *hdr; | |
2892 | struct nlattr *bss; | |
2893 | ||
2894 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
2895 | NL80211_CMD_NEW_SCAN_RESULTS); | |
2896 | if (!hdr) | |
2897 | return -1; | |
2898 | ||
2899 | NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION, | |
2900 | rdev->bss_generation); | |
2901 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2902 | ||
2903 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
2904 | if (!bss) | |
2905 | goto nla_put_failure; | |
2906 | if (!is_zero_ether_addr(res->bssid)) | |
2907 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
2908 | if (res->information_elements && res->len_information_elements) | |
2909 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
2910 | res->len_information_elements, | |
2911 | res->information_elements); | |
2912 | if (res->tsf) | |
2913 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
2914 | if (res->beacon_interval) | |
2915 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
2916 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
2917 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
2918 | ||
77965c97 | 2919 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
2920 | case CFG80211_SIGNAL_TYPE_MBM: |
2921 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
2922 | break; | |
2923 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
2924 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
2925 | break; | |
2926 | default: | |
2927 | break; | |
2928 | } | |
2929 | ||
2930 | nla_nest_end(msg, bss); | |
2931 | ||
2932 | return genlmsg_end(msg, hdr); | |
2933 | ||
2934 | nla_put_failure: | |
2935 | genlmsg_cancel(msg, hdr); | |
2936 | return -EMSGSIZE; | |
2937 | } | |
2938 | ||
2939 | static int nl80211_dump_scan(struct sk_buff *skb, | |
2940 | struct netlink_callback *cb) | |
2941 | { | |
2942 | struct cfg80211_registered_device *dev; | |
2943 | struct net_device *netdev; | |
2944 | struct cfg80211_internal_bss *scan; | |
2945 | int ifidx = cb->args[0]; | |
2946 | int start = cb->args[1], idx = 0; | |
2947 | int err; | |
2948 | ||
2949 | if (!ifidx) { | |
2950 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
2951 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
2952 | nl80211_policy); | |
2953 | if (err) | |
2954 | return err; | |
2955 | ||
2956 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
2957 | return -EINVAL; | |
2958 | ||
2959 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
2960 | if (!ifidx) | |
2961 | return -EINVAL; | |
2962 | cb->args[0] = ifidx; | |
2963 | } | |
2964 | ||
2965 | netdev = dev_get_by_index(&init_net, ifidx); | |
2966 | if (!netdev) | |
2967 | return -ENODEV; | |
2968 | ||
2969 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
2970 | if (IS_ERR(dev)) { | |
2971 | err = PTR_ERR(dev); | |
2972 | goto out_put_netdev; | |
2973 | } | |
2974 | ||
2975 | spin_lock_bh(&dev->bss_lock); | |
2976 | cfg80211_bss_expire(dev); | |
2977 | ||
2978 | list_for_each_entry(scan, &dev->bss_list, list) { | |
2979 | if (++idx <= start) | |
2980 | continue; | |
2981 | if (nl80211_send_bss(skb, | |
2982 | NETLINK_CB(cb->skb).pid, | |
2983 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2984 | dev, netdev, &scan->pub) < 0) { | |
2985 | idx--; | |
2986 | goto out; | |
2987 | } | |
2988 | } | |
2989 | ||
2990 | out: | |
2991 | spin_unlock_bh(&dev->bss_lock); | |
2992 | ||
2993 | cb->args[1] = idx; | |
2994 | err = skb->len; | |
2995 | cfg80211_put_dev(dev); | |
2996 | out_put_netdev: | |
2997 | dev_put(netdev); | |
2998 | ||
2999 | return err; | |
3000 | } | |
3001 | ||
255e737e JM |
3002 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3003 | { | |
3004 | return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM || | |
3005 | auth_type == NL80211_AUTHTYPE_SHARED_KEY || | |
3006 | auth_type == NL80211_AUTHTYPE_FT || | |
3007 | auth_type == NL80211_AUTHTYPE_NETWORK_EAP; | |
3008 | } | |
3009 | ||
636a5d36 JM |
3010 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3011 | { | |
3012 | struct cfg80211_registered_device *drv; | |
3013 | struct net_device *dev; | |
3014 | struct cfg80211_auth_request req; | |
3015 | struct wiphy *wiphy; | |
3016 | int err; | |
3017 | ||
f4a11bb0 JB |
3018 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3019 | return -EINVAL; | |
3020 | ||
3021 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3022 | return -EINVAL; | |
3023 | ||
1778092e JM |
3024 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3025 | return -EINVAL; | |
3026 | ||
636a5d36 JM |
3027 | rtnl_lock(); |
3028 | ||
3029 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
3030 | if (err) | |
3031 | goto unlock_rtnl; | |
3032 | ||
3033 | if (!drv->ops->auth) { | |
3034 | err = -EOPNOTSUPP; | |
3035 | goto out; | |
3036 | } | |
3037 | ||
eec60b03 JM |
3038 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3039 | err = -EOPNOTSUPP; | |
3040 | goto out; | |
3041 | } | |
3042 | ||
35a8efe1 JM |
3043 | if (!netif_running(dev)) { |
3044 | err = -ENETDOWN; | |
3045 | goto out; | |
3046 | } | |
3047 | ||
636a5d36 JM |
3048 | wiphy = &drv->wiphy; |
3049 | memset(&req, 0, sizeof(req)); | |
3050 | ||
3051 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3052 | ||
3053 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3054 | req.chan = ieee80211_get_channel( | |
3055 | wiphy, | |
3056 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3057 | if (!req.chan) { | |
3058 | err = -EINVAL; | |
3059 | goto out; | |
3060 | } | |
3061 | } | |
3062 | ||
3063 | if (info->attrs[NL80211_ATTR_SSID]) { | |
3064 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3065 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3066 | } | |
3067 | ||
3068 | if (info->attrs[NL80211_ATTR_IE]) { | |
3069 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3070 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3071 | } | |
3072 | ||
1778092e JM |
3073 | req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3074 | if (!nl80211_valid_auth_type(req.auth_type)) { | |
3075 | err = -EINVAL; | |
3076 | goto out; | |
636a5d36 JM |
3077 | } |
3078 | ||
3079 | err = drv->ops->auth(&drv->wiphy, dev, &req); | |
3080 | ||
3081 | out: | |
3082 | cfg80211_put_dev(drv); | |
3083 | dev_put(dev); | |
3084 | unlock_rtnl: | |
3085 | rtnl_unlock(); | |
3086 | return err; | |
3087 | } | |
3088 | ||
3089 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) | |
3090 | { | |
3091 | struct cfg80211_registered_device *drv; | |
3092 | struct net_device *dev; | |
3093 | struct cfg80211_assoc_request req; | |
3094 | struct wiphy *wiphy; | |
3095 | int err; | |
3096 | ||
f4a11bb0 JB |
3097 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3098 | return -EINVAL; | |
3099 | ||
3100 | if (!info->attrs[NL80211_ATTR_MAC] || | |
3101 | !info->attrs[NL80211_ATTR_SSID]) | |
3102 | return -EINVAL; | |
3103 | ||
636a5d36 JM |
3104 | rtnl_lock(); |
3105 | ||
3106 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
3107 | if (err) | |
3108 | goto unlock_rtnl; | |
3109 | ||
3110 | if (!drv->ops->assoc) { | |
3111 | err = -EOPNOTSUPP; | |
3112 | goto out; | |
3113 | } | |
3114 | ||
eec60b03 JM |
3115 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3116 | err = -EOPNOTSUPP; | |
3117 | goto out; | |
3118 | } | |
3119 | ||
35a8efe1 JM |
3120 | if (!netif_running(dev)) { |
3121 | err = -ENETDOWN; | |
3122 | goto out; | |
3123 | } | |
3124 | ||
636a5d36 JM |
3125 | wiphy = &drv->wiphy; |
3126 | memset(&req, 0, sizeof(req)); | |
3127 | ||
3128 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3129 | ||
3130 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3131 | req.chan = ieee80211_get_channel( | |
3132 | wiphy, | |
3133 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3134 | if (!req.chan) { | |
3135 | err = -EINVAL; | |
3136 | goto out; | |
3137 | } | |
3138 | } | |
3139 | ||
636a5d36 JM |
3140 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3141 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3142 | ||
3143 | if (info->attrs[NL80211_ATTR_IE]) { | |
3144 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3145 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3146 | } | |
3147 | ||
dc6382ce JM |
3148 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
3149 | enum nl80211_mfp use_mfp = | |
3150 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
3151 | if (use_mfp == NL80211_MFP_REQUIRED) | |
3152 | req.use_mfp = true; | |
3153 | else if (use_mfp != NL80211_MFP_NO) { | |
3154 | err = -EINVAL; | |
3155 | goto out; | |
3156 | } | |
3157 | } | |
3158 | ||
3f77316c JM |
3159 | req.control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3160 | ||
636a5d36 JM |
3161 | err = drv->ops->assoc(&drv->wiphy, dev, &req); |
3162 | ||
3163 | out: | |
3164 | cfg80211_put_dev(drv); | |
3165 | dev_put(dev); | |
3166 | unlock_rtnl: | |
3167 | rtnl_unlock(); | |
3168 | return err; | |
3169 | } | |
3170 | ||
3171 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3172 | { | |
3173 | struct cfg80211_registered_device *drv; | |
3174 | struct net_device *dev; | |
3175 | struct cfg80211_deauth_request req; | |
3176 | struct wiphy *wiphy; | |
3177 | int err; | |
3178 | ||
f4a11bb0 JB |
3179 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3180 | return -EINVAL; | |
3181 | ||
3182 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3183 | return -EINVAL; | |
3184 | ||
3185 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3186 | return -EINVAL; | |
3187 | ||
636a5d36 JM |
3188 | rtnl_lock(); |
3189 | ||
3190 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
3191 | if (err) | |
3192 | goto unlock_rtnl; | |
3193 | ||
3194 | if (!drv->ops->deauth) { | |
3195 | err = -EOPNOTSUPP; | |
3196 | goto out; | |
3197 | } | |
3198 | ||
eec60b03 JM |
3199 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3200 | err = -EOPNOTSUPP; | |
3201 | goto out; | |
3202 | } | |
3203 | ||
35a8efe1 JM |
3204 | if (!netif_running(dev)) { |
3205 | err = -ENETDOWN; | |
3206 | goto out; | |
3207 | } | |
3208 | ||
636a5d36 JM |
3209 | wiphy = &drv->wiphy; |
3210 | memset(&req, 0, sizeof(req)); | |
3211 | ||
3212 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3213 | ||
f4a11bb0 JB |
3214 | req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3215 | if (req.reason_code == 0) { | |
3216 | /* Reason Code 0 is reserved */ | |
3217 | err = -EINVAL; | |
3218 | goto out; | |
255e737e | 3219 | } |
636a5d36 JM |
3220 | |
3221 | if (info->attrs[NL80211_ATTR_IE]) { | |
3222 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3223 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3224 | } | |
3225 | ||
3226 | err = drv->ops->deauth(&drv->wiphy, dev, &req); | |
3227 | ||
3228 | out: | |
3229 | cfg80211_put_dev(drv); | |
3230 | dev_put(dev); | |
3231 | unlock_rtnl: | |
3232 | rtnl_unlock(); | |
3233 | return err; | |
3234 | } | |
3235 | ||
3236 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3237 | { | |
3238 | struct cfg80211_registered_device *drv; | |
3239 | struct net_device *dev; | |
3240 | struct cfg80211_disassoc_request req; | |
3241 | struct wiphy *wiphy; | |
3242 | int err; | |
3243 | ||
f4a11bb0 JB |
3244 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3245 | return -EINVAL; | |
3246 | ||
3247 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3248 | return -EINVAL; | |
3249 | ||
3250 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3251 | return -EINVAL; | |
3252 | ||
636a5d36 JM |
3253 | rtnl_lock(); |
3254 | ||
3255 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
3256 | if (err) | |
3257 | goto unlock_rtnl; | |
3258 | ||
3259 | if (!drv->ops->disassoc) { | |
3260 | err = -EOPNOTSUPP; | |
3261 | goto out; | |
3262 | } | |
3263 | ||
eec60b03 JM |
3264 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3265 | err = -EOPNOTSUPP; | |
3266 | goto out; | |
3267 | } | |
3268 | ||
35a8efe1 JM |
3269 | if (!netif_running(dev)) { |
3270 | err = -ENETDOWN; | |
3271 | goto out; | |
3272 | } | |
3273 | ||
636a5d36 JM |
3274 | wiphy = &drv->wiphy; |
3275 | memset(&req, 0, sizeof(req)); | |
3276 | ||
3277 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3278 | ||
f4a11bb0 JB |
3279 | req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3280 | if (req.reason_code == 0) { | |
3281 | /* Reason Code 0 is reserved */ | |
3282 | err = -EINVAL; | |
3283 | goto out; | |
255e737e | 3284 | } |
636a5d36 JM |
3285 | |
3286 | if (info->attrs[NL80211_ATTR_IE]) { | |
3287 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3288 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3289 | } | |
3290 | ||
3291 | err = drv->ops->disassoc(&drv->wiphy, dev, &req); | |
3292 | ||
3293 | out: | |
3294 | cfg80211_put_dev(drv); | |
3295 | dev_put(dev); | |
3296 | unlock_rtnl: | |
3297 | rtnl_unlock(); | |
3298 | return err; | |
3299 | } | |
3300 | ||
04a773ad JB |
3301 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3302 | { | |
3303 | struct cfg80211_registered_device *drv; | |
3304 | struct net_device *dev; | |
3305 | struct cfg80211_ibss_params ibss; | |
3306 | struct wiphy *wiphy; | |
3307 | int err; | |
3308 | ||
8e30bc55 JB |
3309 | memset(&ibss, 0, sizeof(ibss)); |
3310 | ||
04a773ad JB |
3311 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3312 | return -EINVAL; | |
3313 | ||
3314 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3315 | !info->attrs[NL80211_ATTR_SSID] || | |
3316 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3317 | return -EINVAL; | |
3318 | ||
8e30bc55 JB |
3319 | ibss.beacon_interval = 100; |
3320 | ||
3321 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3322 | ibss.beacon_interval = | |
3323 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3324 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3325 | return -EINVAL; | |
3326 | } | |
3327 | ||
04a773ad JB |
3328 | rtnl_lock(); |
3329 | ||
3330 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
3331 | if (err) | |
3332 | goto unlock_rtnl; | |
3333 | ||
3334 | if (!drv->ops->join_ibss) { | |
3335 | err = -EOPNOTSUPP; | |
3336 | goto out; | |
3337 | } | |
3338 | ||
3339 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3340 | err = -EOPNOTSUPP; | |
3341 | goto out; | |
3342 | } | |
3343 | ||
3344 | if (!netif_running(dev)) { | |
3345 | err = -ENETDOWN; | |
3346 | goto out; | |
3347 | } | |
3348 | ||
3349 | wiphy = &drv->wiphy; | |
04a773ad JB |
3350 | |
3351 | if (info->attrs[NL80211_ATTR_MAC]) | |
3352 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3353 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3354 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3355 | ||
3356 | if (info->attrs[NL80211_ATTR_IE]) { | |
3357 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3358 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3359 | } | |
3360 | ||
3361 | ibss.channel = ieee80211_get_channel(wiphy, | |
3362 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3363 | if (!ibss.channel || | |
3364 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
3365 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) { | |
3366 | err = -EINVAL; | |
3367 | goto out; | |
3368 | } | |
3369 | ||
3370 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
3371 | ||
3372 | err = cfg80211_join_ibss(drv, dev, &ibss); | |
3373 | ||
3374 | out: | |
3375 | cfg80211_put_dev(drv); | |
3376 | dev_put(dev); | |
3377 | unlock_rtnl: | |
3378 | rtnl_unlock(); | |
3379 | return err; | |
3380 | } | |
3381 | ||
3382 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3383 | { | |
3384 | struct cfg80211_registered_device *drv; | |
3385 | struct net_device *dev; | |
3386 | int err; | |
3387 | ||
3388 | rtnl_lock(); | |
3389 | ||
3390 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
3391 | if (err) | |
3392 | goto unlock_rtnl; | |
3393 | ||
3394 | if (!drv->ops->leave_ibss) { | |
3395 | err = -EOPNOTSUPP; | |
3396 | goto out; | |
3397 | } | |
3398 | ||
3399 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3400 | err = -EOPNOTSUPP; | |
3401 | goto out; | |
3402 | } | |
3403 | ||
3404 | if (!netif_running(dev)) { | |
3405 | err = -ENETDOWN; | |
3406 | goto out; | |
3407 | } | |
3408 | ||
9d308429 | 3409 | err = cfg80211_leave_ibss(drv, dev, false); |
04a773ad JB |
3410 | |
3411 | out: | |
3412 | cfg80211_put_dev(drv); | |
3413 | dev_put(dev); | |
3414 | unlock_rtnl: | |
3415 | rtnl_unlock(); | |
3416 | return err; | |
3417 | } | |
3418 | ||
55682965 JB |
3419 | static struct genl_ops nl80211_ops[] = { |
3420 | { | |
3421 | .cmd = NL80211_CMD_GET_WIPHY, | |
3422 | .doit = nl80211_get_wiphy, | |
3423 | .dumpit = nl80211_dump_wiphy, | |
3424 | .policy = nl80211_policy, | |
3425 | /* can be retrieved by unprivileged users */ | |
3426 | }, | |
3427 | { | |
3428 | .cmd = NL80211_CMD_SET_WIPHY, | |
3429 | .doit = nl80211_set_wiphy, | |
3430 | .policy = nl80211_policy, | |
3431 | .flags = GENL_ADMIN_PERM, | |
3432 | }, | |
3433 | { | |
3434 | .cmd = NL80211_CMD_GET_INTERFACE, | |
3435 | .doit = nl80211_get_interface, | |
3436 | .dumpit = nl80211_dump_interface, | |
3437 | .policy = nl80211_policy, | |
3438 | /* can be retrieved by unprivileged users */ | |
3439 | }, | |
3440 | { | |
3441 | .cmd = NL80211_CMD_SET_INTERFACE, | |
3442 | .doit = nl80211_set_interface, | |
3443 | .policy = nl80211_policy, | |
3444 | .flags = GENL_ADMIN_PERM, | |
3445 | }, | |
3446 | { | |
3447 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
3448 | .doit = nl80211_new_interface, | |
3449 | .policy = nl80211_policy, | |
3450 | .flags = GENL_ADMIN_PERM, | |
3451 | }, | |
3452 | { | |
3453 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
3454 | .doit = nl80211_del_interface, | |
3455 | .policy = nl80211_policy, | |
41ade00f JB |
3456 | .flags = GENL_ADMIN_PERM, |
3457 | }, | |
3458 | { | |
3459 | .cmd = NL80211_CMD_GET_KEY, | |
3460 | .doit = nl80211_get_key, | |
3461 | .policy = nl80211_policy, | |
3462 | .flags = GENL_ADMIN_PERM, | |
3463 | }, | |
3464 | { | |
3465 | .cmd = NL80211_CMD_SET_KEY, | |
3466 | .doit = nl80211_set_key, | |
3467 | .policy = nl80211_policy, | |
3468 | .flags = GENL_ADMIN_PERM, | |
3469 | }, | |
3470 | { | |
3471 | .cmd = NL80211_CMD_NEW_KEY, | |
3472 | .doit = nl80211_new_key, | |
3473 | .policy = nl80211_policy, | |
3474 | .flags = GENL_ADMIN_PERM, | |
3475 | }, | |
3476 | { | |
3477 | .cmd = NL80211_CMD_DEL_KEY, | |
3478 | .doit = nl80211_del_key, | |
3479 | .policy = nl80211_policy, | |
55682965 JB |
3480 | .flags = GENL_ADMIN_PERM, |
3481 | }, | |
ed1b6cc7 JB |
3482 | { |
3483 | .cmd = NL80211_CMD_SET_BEACON, | |
3484 | .policy = nl80211_policy, | |
3485 | .flags = GENL_ADMIN_PERM, | |
3486 | .doit = nl80211_addset_beacon, | |
3487 | }, | |
3488 | { | |
3489 | .cmd = NL80211_CMD_NEW_BEACON, | |
3490 | .policy = nl80211_policy, | |
3491 | .flags = GENL_ADMIN_PERM, | |
3492 | .doit = nl80211_addset_beacon, | |
3493 | }, | |
3494 | { | |
3495 | .cmd = NL80211_CMD_DEL_BEACON, | |
3496 | .policy = nl80211_policy, | |
3497 | .flags = GENL_ADMIN_PERM, | |
3498 | .doit = nl80211_del_beacon, | |
3499 | }, | |
5727ef1b JB |
3500 | { |
3501 | .cmd = NL80211_CMD_GET_STATION, | |
3502 | .doit = nl80211_get_station, | |
2ec600d6 | 3503 | .dumpit = nl80211_dump_station, |
5727ef1b | 3504 | .policy = nl80211_policy, |
5727ef1b JB |
3505 | }, |
3506 | { | |
3507 | .cmd = NL80211_CMD_SET_STATION, | |
3508 | .doit = nl80211_set_station, | |
3509 | .policy = nl80211_policy, | |
3510 | .flags = GENL_ADMIN_PERM, | |
3511 | }, | |
3512 | { | |
3513 | .cmd = NL80211_CMD_NEW_STATION, | |
3514 | .doit = nl80211_new_station, | |
3515 | .policy = nl80211_policy, | |
3516 | .flags = GENL_ADMIN_PERM, | |
3517 | }, | |
3518 | { | |
3519 | .cmd = NL80211_CMD_DEL_STATION, | |
3520 | .doit = nl80211_del_station, | |
3521 | .policy = nl80211_policy, | |
2ec600d6 LCC |
3522 | .flags = GENL_ADMIN_PERM, |
3523 | }, | |
3524 | { | |
3525 | .cmd = NL80211_CMD_GET_MPATH, | |
3526 | .doit = nl80211_get_mpath, | |
3527 | .dumpit = nl80211_dump_mpath, | |
3528 | .policy = nl80211_policy, | |
3529 | .flags = GENL_ADMIN_PERM, | |
3530 | }, | |
3531 | { | |
3532 | .cmd = NL80211_CMD_SET_MPATH, | |
3533 | .doit = nl80211_set_mpath, | |
3534 | .policy = nl80211_policy, | |
3535 | .flags = GENL_ADMIN_PERM, | |
3536 | }, | |
3537 | { | |
3538 | .cmd = NL80211_CMD_NEW_MPATH, | |
3539 | .doit = nl80211_new_mpath, | |
3540 | .policy = nl80211_policy, | |
3541 | .flags = GENL_ADMIN_PERM, | |
3542 | }, | |
3543 | { | |
3544 | .cmd = NL80211_CMD_DEL_MPATH, | |
3545 | .doit = nl80211_del_mpath, | |
3546 | .policy = nl80211_policy, | |
9f1ba906 JM |
3547 | .flags = GENL_ADMIN_PERM, |
3548 | }, | |
3549 | { | |
3550 | .cmd = NL80211_CMD_SET_BSS, | |
3551 | .doit = nl80211_set_bss, | |
3552 | .policy = nl80211_policy, | |
b2e1b302 LR |
3553 | .flags = GENL_ADMIN_PERM, |
3554 | }, | |
f130347c LR |
3555 | { |
3556 | .cmd = NL80211_CMD_GET_REG, | |
3557 | .doit = nl80211_get_reg, | |
3558 | .policy = nl80211_policy, | |
3559 | /* can be retrieved by unprivileged users */ | |
3560 | }, | |
b2e1b302 LR |
3561 | { |
3562 | .cmd = NL80211_CMD_SET_REG, | |
3563 | .doit = nl80211_set_reg, | |
3564 | .policy = nl80211_policy, | |
3565 | .flags = GENL_ADMIN_PERM, | |
3566 | }, | |
3567 | { | |
3568 | .cmd = NL80211_CMD_REQ_SET_REG, | |
3569 | .doit = nl80211_req_set_reg, | |
3570 | .policy = nl80211_policy, | |
93da9cc1 | 3571 | .flags = GENL_ADMIN_PERM, |
3572 | }, | |
3573 | { | |
3574 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
3575 | .doit = nl80211_get_mesh_params, | |
3576 | .policy = nl80211_policy, | |
3577 | /* can be retrieved by unprivileged users */ | |
3578 | }, | |
3579 | { | |
3580 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
3581 | .doit = nl80211_set_mesh_params, | |
3582 | .policy = nl80211_policy, | |
9aed3cc1 JM |
3583 | .flags = GENL_ADMIN_PERM, |
3584 | }, | |
2a519311 JB |
3585 | { |
3586 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
3587 | .doit = nl80211_trigger_scan, | |
3588 | .policy = nl80211_policy, | |
3589 | .flags = GENL_ADMIN_PERM, | |
3590 | }, | |
3591 | { | |
3592 | .cmd = NL80211_CMD_GET_SCAN, | |
3593 | .policy = nl80211_policy, | |
3594 | .dumpit = nl80211_dump_scan, | |
3595 | }, | |
636a5d36 JM |
3596 | { |
3597 | .cmd = NL80211_CMD_AUTHENTICATE, | |
3598 | .doit = nl80211_authenticate, | |
3599 | .policy = nl80211_policy, | |
3600 | .flags = GENL_ADMIN_PERM, | |
3601 | }, | |
3602 | { | |
3603 | .cmd = NL80211_CMD_ASSOCIATE, | |
3604 | .doit = nl80211_associate, | |
3605 | .policy = nl80211_policy, | |
3606 | .flags = GENL_ADMIN_PERM, | |
3607 | }, | |
3608 | { | |
3609 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
3610 | .doit = nl80211_deauthenticate, | |
3611 | .policy = nl80211_policy, | |
3612 | .flags = GENL_ADMIN_PERM, | |
3613 | }, | |
3614 | { | |
3615 | .cmd = NL80211_CMD_DISASSOCIATE, | |
3616 | .doit = nl80211_disassociate, | |
3617 | .policy = nl80211_policy, | |
3618 | .flags = GENL_ADMIN_PERM, | |
3619 | }, | |
04a773ad JB |
3620 | { |
3621 | .cmd = NL80211_CMD_JOIN_IBSS, | |
3622 | .doit = nl80211_join_ibss, | |
3623 | .policy = nl80211_policy, | |
3624 | .flags = GENL_ADMIN_PERM, | |
3625 | }, | |
3626 | { | |
3627 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
3628 | .doit = nl80211_leave_ibss, | |
3629 | .policy = nl80211_policy, | |
3630 | .flags = GENL_ADMIN_PERM, | |
3631 | }, | |
55682965 | 3632 | }; |
6039f6d2 JM |
3633 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
3634 | .name = "mlme", | |
3635 | }; | |
55682965 JB |
3636 | |
3637 | /* multicast groups */ | |
3638 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
3639 | .name = "config", | |
3640 | }; | |
2a519311 JB |
3641 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
3642 | .name = "scan", | |
3643 | }; | |
73d54c9e LR |
3644 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
3645 | .name = "regulatory", | |
3646 | }; | |
55682965 JB |
3647 | |
3648 | /* notification functions */ | |
3649 | ||
3650 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
3651 | { | |
3652 | struct sk_buff *msg; | |
3653 | ||
fd2120ca | 3654 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
3655 | if (!msg) |
3656 | return; | |
3657 | ||
3658 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
3659 | nlmsg_free(msg); | |
3660 | return; | |
3661 | } | |
3662 | ||
3663 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
3664 | } | |
3665 | ||
362a415d JB |
3666 | static int nl80211_add_scan_req(struct sk_buff *msg, |
3667 | struct cfg80211_registered_device *rdev) | |
3668 | { | |
3669 | struct cfg80211_scan_request *req = rdev->scan_req; | |
3670 | struct nlattr *nest; | |
3671 | int i; | |
3672 | ||
3673 | if (WARN_ON(!req)) | |
3674 | return 0; | |
3675 | ||
3676 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
3677 | if (!nest) | |
3678 | goto nla_put_failure; | |
3679 | for (i = 0; i < req->n_ssids; i++) | |
3680 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
3681 | nla_nest_end(msg, nest); | |
3682 | ||
3683 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
3684 | if (!nest) | |
3685 | goto nla_put_failure; | |
3686 | for (i = 0; i < req->n_channels; i++) | |
3687 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
3688 | nla_nest_end(msg, nest); | |
3689 | ||
3690 | if (req->ie) | |
3691 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
3692 | ||
3693 | return 0; | |
3694 | nla_put_failure: | |
3695 | return -ENOBUFS; | |
3696 | } | |
3697 | ||
a538e2d5 JB |
3698 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
3699 | struct cfg80211_registered_device *rdev, | |
3700 | struct net_device *netdev, | |
3701 | u32 pid, u32 seq, int flags, | |
3702 | u32 cmd) | |
2a519311 JB |
3703 | { |
3704 | void *hdr; | |
3705 | ||
3706 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
3707 | if (!hdr) | |
3708 | return -1; | |
3709 | ||
b5850a7a | 3710 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
3711 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
3712 | ||
362a415d JB |
3713 | /* ignore errors and send incomplete event anyway */ |
3714 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
3715 | |
3716 | return genlmsg_end(msg, hdr); | |
3717 | ||
3718 | nla_put_failure: | |
3719 | genlmsg_cancel(msg, hdr); | |
3720 | return -EMSGSIZE; | |
3721 | } | |
3722 | ||
a538e2d5 JB |
3723 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
3724 | struct net_device *netdev) | |
3725 | { | |
3726 | struct sk_buff *msg; | |
3727 | ||
3728 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3729 | if (!msg) | |
3730 | return; | |
3731 | ||
3732 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
3733 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
3734 | nlmsg_free(msg); | |
3735 | return; | |
3736 | } | |
3737 | ||
3738 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3739 | } | |
3740 | ||
2a519311 JB |
3741 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
3742 | struct net_device *netdev) | |
3743 | { | |
3744 | struct sk_buff *msg; | |
3745 | ||
fd2120ca | 3746 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
3747 | if (!msg) |
3748 | return; | |
3749 | ||
a538e2d5 JB |
3750 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
3751 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
3752 | nlmsg_free(msg); |
3753 | return; | |
3754 | } | |
3755 | ||
3756 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3757 | } | |
3758 | ||
3759 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
3760 | struct net_device *netdev) | |
3761 | { | |
3762 | struct sk_buff *msg; | |
3763 | ||
fd2120ca | 3764 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
3765 | if (!msg) |
3766 | return; | |
3767 | ||
a538e2d5 JB |
3768 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
3769 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
3770 | nlmsg_free(msg); |
3771 | return; | |
3772 | } | |
3773 | ||
3774 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3775 | } | |
3776 | ||
73d54c9e LR |
3777 | /* |
3778 | * This can happen on global regulatory changes or device specific settings | |
3779 | * based on custom world regulatory domains. | |
3780 | */ | |
3781 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
3782 | { | |
3783 | struct sk_buff *msg; | |
3784 | void *hdr; | |
3785 | ||
fd2120ca | 3786 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
3787 | if (!msg) |
3788 | return; | |
3789 | ||
3790 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
3791 | if (!hdr) { | |
3792 | nlmsg_free(msg); | |
3793 | return; | |
3794 | } | |
3795 | ||
3796 | /* Userspace can always count this one always being set */ | |
3797 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
3798 | ||
3799 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
3800 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3801 | NL80211_REGDOM_TYPE_WORLD); | |
3802 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
3803 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3804 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
3805 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
3806 | request->intersect) | |
3807 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3808 | NL80211_REGDOM_TYPE_INTERSECTION); | |
3809 | else { | |
3810 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3811 | NL80211_REGDOM_TYPE_COUNTRY); | |
3812 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
3813 | } | |
3814 | ||
3815 | if (wiphy_idx_valid(request->wiphy_idx)) | |
3816 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
3817 | ||
3818 | if (genlmsg_end(msg, hdr) < 0) { | |
3819 | nlmsg_free(msg); | |
3820 | return; | |
3821 | } | |
3822 | ||
3823 | genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL); | |
3824 | ||
3825 | return; | |
3826 | ||
3827 | nla_put_failure: | |
3828 | genlmsg_cancel(msg, hdr); | |
3829 | nlmsg_free(msg); | |
3830 | } | |
3831 | ||
6039f6d2 JM |
3832 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
3833 | struct net_device *netdev, | |
3834 | const u8 *buf, size_t len, | |
e6d6e342 | 3835 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
3836 | { |
3837 | struct sk_buff *msg; | |
3838 | void *hdr; | |
3839 | ||
e6d6e342 | 3840 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
3841 | if (!msg) |
3842 | return; | |
3843 | ||
3844 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
3845 | if (!hdr) { | |
3846 | nlmsg_free(msg); | |
3847 | return; | |
3848 | } | |
3849 | ||
3850 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3851 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
3852 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
3853 | ||
3854 | if (genlmsg_end(msg, hdr) < 0) { | |
3855 | nlmsg_free(msg); | |
3856 | return; | |
3857 | } | |
3858 | ||
e6d6e342 | 3859 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); |
6039f6d2 JM |
3860 | return; |
3861 | ||
3862 | nla_put_failure: | |
3863 | genlmsg_cancel(msg, hdr); | |
3864 | nlmsg_free(msg); | |
3865 | } | |
3866 | ||
3867 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
3868 | struct net_device *netdev, const u8 *buf, |
3869 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
3870 | { |
3871 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 3872 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
3873 | } |
3874 | ||
3875 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
3876 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 3877 | size_t len, gfp_t gfp) |
6039f6d2 | 3878 | { |
e6d6e342 JB |
3879 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
3880 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
3881 | } |
3882 | ||
53b46b84 | 3883 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
3884 | struct net_device *netdev, const u8 *buf, |
3885 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
3886 | { |
3887 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 3888 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
3889 | } |
3890 | ||
53b46b84 JM |
3891 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
3892 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 3893 | size_t len, gfp_t gfp) |
6039f6d2 JM |
3894 | { |
3895 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 3896 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
3897 | } |
3898 | ||
1b06bb40 LR |
3899 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
3900 | struct net_device *netdev, int cmd, | |
e6d6e342 | 3901 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
3902 | { |
3903 | struct sk_buff *msg; | |
3904 | void *hdr; | |
3905 | ||
e6d6e342 | 3906 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
3907 | if (!msg) |
3908 | return; | |
3909 | ||
3910 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
3911 | if (!hdr) { | |
3912 | nlmsg_free(msg); | |
3913 | return; | |
3914 | } | |
3915 | ||
3916 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3917 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
3918 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
3919 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
3920 | ||
3921 | if (genlmsg_end(msg, hdr) < 0) { | |
3922 | nlmsg_free(msg); | |
3923 | return; | |
3924 | } | |
3925 | ||
e6d6e342 | 3926 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); |
1965c853 JM |
3927 | return; |
3928 | ||
3929 | nla_put_failure: | |
3930 | genlmsg_cancel(msg, hdr); | |
3931 | nlmsg_free(msg); | |
3932 | } | |
3933 | ||
3934 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
3935 | struct net_device *netdev, const u8 *addr, |
3936 | gfp_t gfp) | |
1965c853 JM |
3937 | { |
3938 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 3939 | addr, gfp); |
1965c853 JM |
3940 | } |
3941 | ||
3942 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
3943 | struct net_device *netdev, const u8 *addr, |
3944 | gfp_t gfp) | |
1965c853 | 3945 | { |
e6d6e342 JB |
3946 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
3947 | addr, gfp); | |
1965c853 JM |
3948 | } |
3949 | ||
04a773ad JB |
3950 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
3951 | struct net_device *netdev, const u8 *bssid, | |
3952 | gfp_t gfp) | |
3953 | { | |
3954 | struct sk_buff *msg; | |
3955 | void *hdr; | |
3956 | ||
fd2120ca | 3957 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
3958 | if (!msg) |
3959 | return; | |
3960 | ||
3961 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
3962 | if (!hdr) { | |
3963 | nlmsg_free(msg); | |
3964 | return; | |
3965 | } | |
3966 | ||
3967 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3968 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
3969 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
3970 | ||
3971 | if (genlmsg_end(msg, hdr) < 0) { | |
3972 | nlmsg_free(msg); | |
3973 | return; | |
3974 | } | |
3975 | ||
3976 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
3977 | return; | |
3978 | ||
3979 | nla_put_failure: | |
3980 | genlmsg_cancel(msg, hdr); | |
3981 | nlmsg_free(msg); | |
3982 | } | |
3983 | ||
a3b8b056 JM |
3984 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
3985 | struct net_device *netdev, const u8 *addr, | |
3986 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 3987 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
3988 | { |
3989 | struct sk_buff *msg; | |
3990 | void *hdr; | |
3991 | ||
e6d6e342 | 3992 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
3993 | if (!msg) |
3994 | return; | |
3995 | ||
3996 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
3997 | if (!hdr) { | |
3998 | nlmsg_free(msg); | |
3999 | return; | |
4000 | } | |
4001 | ||
4002 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4003 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4004 | if (addr) | |
4005 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
4006 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
4007 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
4008 | if (tsc) | |
4009 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
4010 | ||
4011 | if (genlmsg_end(msg, hdr) < 0) { | |
4012 | nlmsg_free(msg); | |
4013 | return; | |
4014 | } | |
4015 | ||
e6d6e342 | 4016 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); |
a3b8b056 JM |
4017 | return; |
4018 | ||
4019 | nla_put_failure: | |
4020 | genlmsg_cancel(msg, hdr); | |
4021 | nlmsg_free(msg); | |
4022 | } | |
4023 | ||
6bad8766 LR |
4024 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
4025 | struct ieee80211_channel *channel_before, | |
4026 | struct ieee80211_channel *channel_after) | |
4027 | { | |
4028 | struct sk_buff *msg; | |
4029 | void *hdr; | |
4030 | struct nlattr *nl_freq; | |
4031 | ||
fd2120ca | 4032 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
4033 | if (!msg) |
4034 | return; | |
4035 | ||
4036 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
4037 | if (!hdr) { | |
4038 | nlmsg_free(msg); | |
4039 | return; | |
4040 | } | |
4041 | ||
4042 | /* | |
4043 | * Since we are applying the beacon hint to a wiphy we know its | |
4044 | * wiphy_idx is valid | |
4045 | */ | |
4046 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
4047 | ||
4048 | /* Before */ | |
4049 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
4050 | if (!nl_freq) | |
4051 | goto nla_put_failure; | |
4052 | if (nl80211_msg_put_channel(msg, channel_before)) | |
4053 | goto nla_put_failure; | |
4054 | nla_nest_end(msg, nl_freq); | |
4055 | ||
4056 | /* After */ | |
4057 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
4058 | if (!nl_freq) | |
4059 | goto nla_put_failure; | |
4060 | if (nl80211_msg_put_channel(msg, channel_after)) | |
4061 | goto nla_put_failure; | |
4062 | nla_nest_end(msg, nl_freq); | |
4063 | ||
4064 | if (genlmsg_end(msg, hdr) < 0) { | |
4065 | nlmsg_free(msg); | |
4066 | return; | |
4067 | } | |
4068 | ||
4069 | genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC); | |
4070 | ||
4071 | return; | |
4072 | ||
4073 | nla_put_failure: | |
4074 | genlmsg_cancel(msg, hdr); | |
4075 | nlmsg_free(msg); | |
4076 | } | |
4077 | ||
55682965 JB |
4078 | /* initialisation/exit functions */ |
4079 | ||
4080 | int nl80211_init(void) | |
4081 | { | |
0d63cbb5 | 4082 | int err; |
55682965 | 4083 | |
0d63cbb5 MM |
4084 | err = genl_register_family_with_ops(&nl80211_fam, |
4085 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
4086 | if (err) |
4087 | return err; | |
4088 | ||
55682965 JB |
4089 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
4090 | if (err) | |
4091 | goto err_out; | |
4092 | ||
2a519311 JB |
4093 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
4094 | if (err) | |
4095 | goto err_out; | |
4096 | ||
73d54c9e LR |
4097 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
4098 | if (err) | |
4099 | goto err_out; | |
4100 | ||
6039f6d2 JM |
4101 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
4102 | if (err) | |
4103 | goto err_out; | |
4104 | ||
55682965 JB |
4105 | return 0; |
4106 | err_out: | |
4107 | genl_unregister_family(&nl80211_fam); | |
4108 | return err; | |
4109 | } | |
4110 | ||
4111 | void nl80211_exit(void) | |
4112 | { | |
4113 | genl_unregister_family(&nl80211_fam); | |
4114 | } |