Commit | Line | Data |
---|---|---|
55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
4 | * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> | |
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, | |
60 | .len = BUS_ID_SIZE-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 }, |
55682965 JB |
64 | |
65 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
66 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
67 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
68 | |
69 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
70 | ||
71 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
72 | .len = WLAN_MAX_KEY_LEN }, | |
73 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
74 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
75 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
ed1b6cc7 JB |
76 | |
77 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
78 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
79 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
80 | .len = IEEE80211_MAX_DATA_LEN }, | |
81 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
82 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
83 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
84 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
85 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
86 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
87 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 88 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 89 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 90 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
91 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
92 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
93 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 94 | |
b2e1b302 LR |
95 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
96 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
97 | ||
9f1ba906 JM |
98 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
99 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
100 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
101 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
102 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 103 | |
93da9cc1 | 104 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
105 | ||
36aedc90 JM |
106 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
107 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
108 | |
109 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
110 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
111 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
112 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
113 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
114 | |
115 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
116 | .len = IEEE80211_MAX_SSID_LEN }, | |
117 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
118 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
55682965 JB |
119 | }; |
120 | ||
121 | /* message building helper */ | |
122 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
123 | int flags, u8 cmd) | |
124 | { | |
125 | /* since there is no private header just add the generic one */ | |
126 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
127 | } | |
128 | ||
129 | /* netlink command implementations */ | |
130 | ||
131 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
132 | struct cfg80211_registered_device *dev) | |
133 | { | |
134 | void *hdr; | |
ee688b00 JB |
135 | struct nlattr *nl_bands, *nl_band; |
136 | struct nlattr *nl_freqs, *nl_freq; | |
137 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 138 | struct nlattr *nl_modes; |
8fdc621d | 139 | struct nlattr *nl_cmds; |
ee688b00 JB |
140 | enum ieee80211_band band; |
141 | struct ieee80211_channel *chan; | |
142 | struct ieee80211_rate *rate; | |
143 | int i; | |
f59ac048 | 144 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
145 | |
146 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
147 | if (!hdr) | |
148 | return -1; | |
149 | ||
b5850a7a | 150 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 151 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
2a519311 JB |
152 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
153 | dev->wiphy.max_scan_ssids); | |
ee688b00 | 154 | |
f59ac048 LR |
155 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
156 | if (!nl_modes) | |
157 | goto nla_put_failure; | |
158 | ||
159 | i = 0; | |
160 | while (ifmodes) { | |
161 | if (ifmodes & 1) | |
162 | NLA_PUT_FLAG(msg, i); | |
163 | ifmodes >>= 1; | |
164 | i++; | |
165 | } | |
166 | ||
167 | nla_nest_end(msg, nl_modes); | |
168 | ||
ee688b00 JB |
169 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
170 | if (!nl_bands) | |
171 | goto nla_put_failure; | |
172 | ||
173 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
174 | if (!dev->wiphy.bands[band]) | |
175 | continue; | |
176 | ||
177 | nl_band = nla_nest_start(msg, band); | |
178 | if (!nl_band) | |
179 | goto nla_put_failure; | |
180 | ||
d51626df JB |
181 | /* add HT info */ |
182 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
183 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
184 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
185 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
186 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
187 | dev->wiphy.bands[band]->ht_cap.cap); | |
188 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
189 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
190 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
191 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
192 | } | |
193 | ||
ee688b00 JB |
194 | /* add frequencies */ |
195 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
196 | if (!nl_freqs) | |
197 | goto nla_put_failure; | |
198 | ||
199 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
200 | nl_freq = nla_nest_start(msg, i); | |
201 | if (!nl_freq) | |
202 | goto nla_put_failure; | |
203 | ||
204 | chan = &dev->wiphy.bands[band]->channels[i]; | |
205 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
206 | chan->center_freq); | |
207 | ||
208 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
209 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
210 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
211 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
212 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
213 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
214 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
215 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
216 | ||
bf8c1ac6 JM |
217 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
218 | DBM_TO_MBM(chan->max_power)); | |
e2f367f2 | 219 | |
ee688b00 JB |
220 | nla_nest_end(msg, nl_freq); |
221 | } | |
222 | ||
223 | nla_nest_end(msg, nl_freqs); | |
224 | ||
225 | /* add bitrates */ | |
226 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
227 | if (!nl_rates) | |
228 | goto nla_put_failure; | |
229 | ||
230 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
231 | nl_rate = nla_nest_start(msg, i); | |
232 | if (!nl_rate) | |
233 | goto nla_put_failure; | |
234 | ||
235 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
236 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
237 | rate->bitrate); | |
238 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
239 | NLA_PUT_FLAG(msg, | |
240 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
241 | ||
242 | nla_nest_end(msg, nl_rate); | |
243 | } | |
244 | ||
245 | nla_nest_end(msg, nl_rates); | |
246 | ||
247 | nla_nest_end(msg, nl_band); | |
248 | } | |
249 | nla_nest_end(msg, nl_bands); | |
250 | ||
8fdc621d JB |
251 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
252 | if (!nl_cmds) | |
253 | goto nla_put_failure; | |
254 | ||
255 | i = 0; | |
256 | #define CMD(op, n) \ | |
257 | do { \ | |
258 | if (dev->ops->op) { \ | |
259 | i++; \ | |
260 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
261 | } \ | |
262 | } while (0) | |
263 | ||
264 | CMD(add_virtual_intf, NEW_INTERFACE); | |
265 | CMD(change_virtual_intf, SET_INTERFACE); | |
266 | CMD(add_key, NEW_KEY); | |
267 | CMD(add_beacon, NEW_BEACON); | |
268 | CMD(add_station, NEW_STATION); | |
269 | CMD(add_mpath, NEW_MPATH); | |
270 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
271 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
272 | CMD(auth, AUTHENTICATE); |
273 | CMD(assoc, ASSOCIATE); | |
274 | CMD(deauth, DEAUTHENTICATE); | |
275 | CMD(disassoc, DISASSOCIATE); | |
8fdc621d JB |
276 | |
277 | #undef CMD | |
278 | nla_nest_end(msg, nl_cmds); | |
279 | ||
55682965 JB |
280 | return genlmsg_end(msg, hdr); |
281 | ||
282 | nla_put_failure: | |
bc3ed28c TG |
283 | genlmsg_cancel(msg, hdr); |
284 | return -EMSGSIZE; | |
55682965 JB |
285 | } |
286 | ||
287 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
288 | { | |
289 | int idx = 0; | |
290 | int start = cb->args[0]; | |
291 | struct cfg80211_registered_device *dev; | |
292 | ||
a1794390 | 293 | mutex_lock(&cfg80211_mutex); |
55682965 | 294 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
b4637271 | 295 | if (++idx <= start) |
55682965 JB |
296 | continue; |
297 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
298 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
299 | dev) < 0) { |
300 | idx--; | |
55682965 | 301 | break; |
b4637271 | 302 | } |
55682965 | 303 | } |
a1794390 | 304 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
305 | |
306 | cb->args[0] = idx; | |
307 | ||
308 | return skb->len; | |
309 | } | |
310 | ||
311 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
312 | { | |
313 | struct sk_buff *msg; | |
314 | struct cfg80211_registered_device *dev; | |
315 | ||
316 | dev = cfg80211_get_dev_from_info(info); | |
317 | if (IS_ERR(dev)) | |
318 | return PTR_ERR(dev); | |
319 | ||
320 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
321 | if (!msg) | |
322 | goto out_err; | |
323 | ||
324 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
325 | goto out_free; | |
326 | ||
327 | cfg80211_put_dev(dev); | |
328 | ||
329 | return genlmsg_unicast(msg, info->snd_pid); | |
330 | ||
331 | out_free: | |
332 | nlmsg_free(msg); | |
333 | out_err: | |
334 | cfg80211_put_dev(dev); | |
335 | return -ENOBUFS; | |
336 | } | |
337 | ||
31888487 JM |
338 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
339 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
340 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
341 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
342 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
343 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
344 | }; | |
345 | ||
346 | static int parse_txq_params(struct nlattr *tb[], | |
347 | struct ieee80211_txq_params *txq_params) | |
348 | { | |
349 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
350 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
351 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
352 | return -EINVAL; | |
353 | ||
354 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
355 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
356 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
357 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
358 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
55682965 JB |
363 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
364 | { | |
365 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
366 | int result = 0, rem_txq_params = 0; |
367 | struct nlattr *nl_txq_params; | |
55682965 | 368 | |
4bbf4d56 | 369 | rtnl_lock(); |
55682965 | 370 | |
4bbf4d56 JB |
371 | mutex_lock(&cfg80211_mutex); |
372 | ||
373 | rdev = __cfg80211_drv_from_info(info); | |
374 | if (IS_ERR(rdev)) { | |
375 | result = PTR_ERR(rdev); | |
376 | goto unlock; | |
377 | } | |
378 | ||
379 | mutex_lock(&rdev->mtx); | |
380 | ||
381 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
382 | result = cfg80211_dev_rename( |
383 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
384 | |
385 | mutex_unlock(&cfg80211_mutex); | |
386 | ||
387 | if (result) | |
388 | goto bad_res; | |
31888487 JM |
389 | |
390 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
391 | struct ieee80211_txq_params txq_params; | |
392 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
393 | ||
394 | if (!rdev->ops->set_txq_params) { | |
395 | result = -EOPNOTSUPP; | |
396 | goto bad_res; | |
397 | } | |
398 | ||
399 | nla_for_each_nested(nl_txq_params, | |
400 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
401 | rem_txq_params) { | |
402 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
403 | nla_data(nl_txq_params), | |
404 | nla_len(nl_txq_params), | |
405 | txq_params_policy); | |
406 | result = parse_txq_params(tb, &txq_params); | |
407 | if (result) | |
408 | goto bad_res; | |
409 | ||
410 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
411 | &txq_params); | |
412 | if (result) | |
413 | goto bad_res; | |
414 | } | |
415 | } | |
55682965 | 416 | |
72bdcf34 | 417 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 418 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
72bdcf34 | 419 | struct ieee80211_channel *chan; |
306d6112 | 420 | struct ieee80211_sta_ht_cap *ht_cap; |
72bdcf34 JM |
421 | u32 freq, sec_freq; |
422 | ||
423 | if (!rdev->ops->set_channel) { | |
424 | result = -EOPNOTSUPP; | |
425 | goto bad_res; | |
426 | } | |
427 | ||
306d6112 JB |
428 | result = -EINVAL; |
429 | ||
094d05dc S |
430 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
431 | channel_type = nla_get_u32(info->attrs[ | |
432 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
433 | if (channel_type != NL80211_CHAN_NO_HT && | |
434 | channel_type != NL80211_CHAN_HT20 && | |
435 | channel_type != NL80211_CHAN_HT40PLUS && | |
436 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 437 | goto bad_res; |
72bdcf34 JM |
438 | } |
439 | ||
440 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
441 | chan = ieee80211_get_channel(&rdev->wiphy, freq); | |
306d6112 JB |
442 | |
443 | /* Primary channel not allowed */ | |
444 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 445 | goto bad_res; |
306d6112 | 446 | |
094d05dc | 447 | if (channel_type == NL80211_CHAN_HT40MINUS) |
72bdcf34 | 448 | sec_freq = freq - 20; |
094d05dc | 449 | else if (channel_type == NL80211_CHAN_HT40PLUS) |
72bdcf34 JM |
450 | sec_freq = freq + 20; |
451 | else | |
452 | sec_freq = 0; | |
453 | ||
306d6112 JB |
454 | ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap; |
455 | ||
456 | /* no HT capabilities */ | |
094d05dc | 457 | if (channel_type != NL80211_CHAN_NO_HT && |
306d6112 JB |
458 | !ht_cap->ht_supported) |
459 | goto bad_res; | |
460 | ||
72bdcf34 JM |
461 | if (sec_freq) { |
462 | struct ieee80211_channel *schan; | |
306d6112 JB |
463 | |
464 | /* no 40 MHz capabilities */ | |
465 | if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || | |
466 | (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)) | |
467 | goto bad_res; | |
468 | ||
72bdcf34 | 469 | schan = ieee80211_get_channel(&rdev->wiphy, sec_freq); |
306d6112 JB |
470 | |
471 | /* Secondary channel not allowed */ | |
472 | if (!schan || schan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 473 | goto bad_res; |
72bdcf34 JM |
474 | } |
475 | ||
476 | result = rdev->ops->set_channel(&rdev->wiphy, chan, | |
094d05dc | 477 | channel_type); |
72bdcf34 JM |
478 | if (result) |
479 | goto bad_res; | |
480 | } | |
481 | ||
482 | ||
306d6112 | 483 | bad_res: |
4bbf4d56 JB |
484 | mutex_unlock(&rdev->mtx); |
485 | unlock: | |
486 | rtnl_unlock(); | |
55682965 JB |
487 | return result; |
488 | } | |
489 | ||
490 | ||
491 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
492 | struct net_device *dev) | |
493 | { | |
494 | void *hdr; | |
495 | ||
496 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
497 | if (!hdr) | |
498 | return -1; | |
499 | ||
500 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
501 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
60719ffd | 502 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
55682965 JB |
503 | return genlmsg_end(msg, hdr); |
504 | ||
505 | nla_put_failure: | |
bc3ed28c TG |
506 | genlmsg_cancel(msg, hdr); |
507 | return -EMSGSIZE; | |
55682965 JB |
508 | } |
509 | ||
510 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
511 | { | |
512 | int wp_idx = 0; | |
513 | int if_idx = 0; | |
514 | int wp_start = cb->args[0]; | |
515 | int if_start = cb->args[1]; | |
516 | struct cfg80211_registered_device *dev; | |
517 | struct wireless_dev *wdev; | |
518 | ||
a1794390 | 519 | mutex_lock(&cfg80211_mutex); |
55682965 | 520 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
bba95fef JB |
521 | if (wp_idx < wp_start) { |
522 | wp_idx++; | |
55682965 | 523 | continue; |
bba95fef | 524 | } |
55682965 JB |
525 | if_idx = 0; |
526 | ||
527 | mutex_lock(&dev->devlist_mtx); | |
528 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
bba95fef JB |
529 | if (if_idx < if_start) { |
530 | if_idx++; | |
55682965 | 531 | continue; |
bba95fef | 532 | } |
55682965 JB |
533 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
534 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
bba95fef JB |
535 | wdev->netdev) < 0) { |
536 | mutex_unlock(&dev->devlist_mtx); | |
537 | goto out; | |
538 | } | |
539 | if_idx++; | |
55682965 JB |
540 | } |
541 | mutex_unlock(&dev->devlist_mtx); | |
bba95fef JB |
542 | |
543 | wp_idx++; | |
55682965 | 544 | } |
bba95fef | 545 | out: |
a1794390 | 546 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
547 | |
548 | cb->args[0] = wp_idx; | |
549 | cb->args[1] = if_idx; | |
550 | ||
551 | return skb->len; | |
552 | } | |
553 | ||
554 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
555 | { | |
556 | struct sk_buff *msg; | |
557 | struct cfg80211_registered_device *dev; | |
558 | struct net_device *netdev; | |
559 | int err; | |
560 | ||
bba95fef | 561 | err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev); |
55682965 JB |
562 | if (err) |
563 | return err; | |
564 | ||
565 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
566 | if (!msg) | |
567 | goto out_err; | |
568 | ||
569 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
570 | goto out_free; | |
571 | ||
572 | dev_put(netdev); | |
573 | cfg80211_put_dev(dev); | |
574 | ||
575 | return genlmsg_unicast(msg, info->snd_pid); | |
576 | ||
577 | out_free: | |
578 | nlmsg_free(msg); | |
579 | out_err: | |
580 | dev_put(netdev); | |
581 | cfg80211_put_dev(dev); | |
582 | return -ENOBUFS; | |
583 | } | |
584 | ||
66f7ac50 MW |
585 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
586 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
587 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
588 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
589 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
590 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
591 | }; | |
592 | ||
593 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
594 | { | |
595 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
596 | int flag; | |
597 | ||
598 | *mntrflags = 0; | |
599 | ||
600 | if (!nla) | |
601 | return -EINVAL; | |
602 | ||
603 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
604 | nla, mntr_flags_policy)) | |
605 | return -EINVAL; | |
606 | ||
607 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
608 | if (flags[flag]) | |
609 | *mntrflags |= (1<<flag); | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
55682965 JB |
614 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
615 | { | |
616 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 617 | struct vif_params params; |
55682965 JB |
618 | int err, ifindex; |
619 | enum nl80211_iftype type; | |
620 | struct net_device *dev; | |
92ffe055 | 621 | u32 _flags, *flags = NULL; |
ac7f9cfa | 622 | bool change = false; |
55682965 | 623 | |
2ec600d6 LCC |
624 | memset(¶ms, 0, sizeof(params)); |
625 | ||
3b85875a JB |
626 | rtnl_lock(); |
627 | ||
bba95fef | 628 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 629 | if (err) |
3b85875a JB |
630 | goto unlock_rtnl; |
631 | ||
55682965 | 632 | ifindex = dev->ifindex; |
723b038d | 633 | type = dev->ieee80211_ptr->iftype; |
55682965 JB |
634 | dev_put(dev); |
635 | ||
723b038d | 636 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa JB |
637 | enum nl80211_iftype ntype; |
638 | ||
639 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
640 | if (type != ntype) | |
641 | change = true; | |
642 | type = ntype; | |
643 | if (type > NL80211_IFTYPE_MAX) { | |
644 | err = -EINVAL; | |
723b038d | 645 | goto unlock; |
ac7f9cfa | 646 | } |
723b038d JB |
647 | } |
648 | ||
f59ac048 LR |
649 | if (!drv->ops->change_virtual_intf || |
650 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
651 | err = -EOPNOTSUPP; |
652 | goto unlock; | |
653 | } | |
654 | ||
92ffe055 JB |
655 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
656 | if (type != NL80211_IFTYPE_MESH_POINT) { | |
657 | err = -EINVAL; | |
658 | goto unlock; | |
659 | } | |
2ec600d6 LCC |
660 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
661 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 662 | change = true; |
2ec600d6 LCC |
663 | } |
664 | ||
92ffe055 JB |
665 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
666 | if (type != NL80211_IFTYPE_MONITOR) { | |
667 | err = -EINVAL; | |
668 | goto unlock; | |
669 | } | |
670 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
671 | &_flags); | |
ac7f9cfa JB |
672 | if (err) |
673 | goto unlock; | |
674 | ||
675 | flags = &_flags; | |
676 | change = true; | |
92ffe055 | 677 | } |
3b85875a | 678 | |
ac7f9cfa JB |
679 | if (change) |
680 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, | |
681 | type, flags, ¶ms); | |
682 | else | |
683 | err = 0; | |
60719ffd JB |
684 | |
685 | dev = __dev_get_by_index(&init_net, ifindex); | |
686 | WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type)); | |
687 | ||
55682965 JB |
688 | unlock: |
689 | cfg80211_put_dev(drv); | |
3b85875a JB |
690 | unlock_rtnl: |
691 | rtnl_unlock(); | |
55682965 JB |
692 | return err; |
693 | } | |
694 | ||
695 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
696 | { | |
697 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 698 | struct vif_params params; |
55682965 JB |
699 | int err; |
700 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 701 | u32 flags; |
55682965 | 702 | |
2ec600d6 LCC |
703 | memset(¶ms, 0, sizeof(params)); |
704 | ||
55682965 JB |
705 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
706 | return -EINVAL; | |
707 | ||
708 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
709 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
710 | if (type > NL80211_IFTYPE_MAX) | |
711 | return -EINVAL; | |
712 | } | |
713 | ||
3b85875a JB |
714 | rtnl_lock(); |
715 | ||
55682965 | 716 | drv = cfg80211_get_dev_from_info(info); |
3b85875a JB |
717 | if (IS_ERR(drv)) { |
718 | err = PTR_ERR(drv); | |
719 | goto unlock_rtnl; | |
720 | } | |
55682965 | 721 | |
f59ac048 LR |
722 | if (!drv->ops->add_virtual_intf || |
723 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
724 | err = -EOPNOTSUPP; |
725 | goto unlock; | |
726 | } | |
727 | ||
2ec600d6 LCC |
728 | if (type == NL80211_IFTYPE_MESH_POINT && |
729 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
730 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
731 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
732 | } | |
733 | ||
66f7ac50 MW |
734 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
735 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
736 | &flags); | |
55682965 | 737 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 738 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 739 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 740 | |
55682965 JB |
741 | unlock: |
742 | cfg80211_put_dev(drv); | |
3b85875a JB |
743 | unlock_rtnl: |
744 | rtnl_unlock(); | |
55682965 JB |
745 | return err; |
746 | } | |
747 | ||
748 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
749 | { | |
750 | struct cfg80211_registered_device *drv; | |
751 | int ifindex, err; | |
752 | struct net_device *dev; | |
753 | ||
3b85875a JB |
754 | rtnl_lock(); |
755 | ||
bba95fef | 756 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 757 | if (err) |
3b85875a | 758 | goto unlock_rtnl; |
55682965 JB |
759 | ifindex = dev->ifindex; |
760 | dev_put(dev); | |
761 | ||
762 | if (!drv->ops->del_virtual_intf) { | |
763 | err = -EOPNOTSUPP; | |
764 | goto out; | |
765 | } | |
766 | ||
55682965 | 767 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); |
55682965 JB |
768 | |
769 | out: | |
770 | cfg80211_put_dev(drv); | |
3b85875a JB |
771 | unlock_rtnl: |
772 | rtnl_unlock(); | |
55682965 JB |
773 | return err; |
774 | } | |
775 | ||
41ade00f JB |
776 | struct get_key_cookie { |
777 | struct sk_buff *msg; | |
778 | int error; | |
779 | }; | |
780 | ||
781 | static void get_key_callback(void *c, struct key_params *params) | |
782 | { | |
783 | struct get_key_cookie *cookie = c; | |
784 | ||
785 | if (params->key) | |
786 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
787 | params->key_len, params->key); | |
788 | ||
789 | if (params->seq) | |
790 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
791 | params->seq_len, params->seq); | |
792 | ||
793 | if (params->cipher) | |
794 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
795 | params->cipher); | |
796 | ||
797 | return; | |
798 | nla_put_failure: | |
799 | cookie->error = 1; | |
800 | } | |
801 | ||
802 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
803 | { | |
804 | struct cfg80211_registered_device *drv; | |
805 | int err; | |
806 | struct net_device *dev; | |
807 | u8 key_idx = 0; | |
808 | u8 *mac_addr = NULL; | |
809 | struct get_key_cookie cookie = { | |
810 | .error = 0, | |
811 | }; | |
812 | void *hdr; | |
813 | struct sk_buff *msg; | |
814 | ||
815 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
816 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
817 | ||
3cfcf6ac | 818 | if (key_idx > 5) |
41ade00f JB |
819 | return -EINVAL; |
820 | ||
821 | if (info->attrs[NL80211_ATTR_MAC]) | |
822 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
823 | ||
3b85875a JB |
824 | rtnl_lock(); |
825 | ||
bba95fef | 826 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 827 | if (err) |
3b85875a | 828 | goto unlock_rtnl; |
41ade00f JB |
829 | |
830 | if (!drv->ops->get_key) { | |
831 | err = -EOPNOTSUPP; | |
832 | goto out; | |
833 | } | |
834 | ||
835 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
836 | if (!msg) { | |
837 | err = -ENOMEM; | |
838 | goto out; | |
839 | } | |
840 | ||
841 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
842 | NL80211_CMD_NEW_KEY); | |
843 | ||
844 | if (IS_ERR(hdr)) { | |
845 | err = PTR_ERR(hdr); | |
846 | goto out; | |
847 | } | |
848 | ||
849 | cookie.msg = msg; | |
850 | ||
851 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
852 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
853 | if (mac_addr) | |
854 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
855 | ||
41ade00f JB |
856 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, |
857 | &cookie, get_key_callback); | |
41ade00f JB |
858 | |
859 | if (err) | |
860 | goto out; | |
861 | ||
862 | if (cookie.error) | |
863 | goto nla_put_failure; | |
864 | ||
865 | genlmsg_end(msg, hdr); | |
866 | err = genlmsg_unicast(msg, info->snd_pid); | |
867 | goto out; | |
868 | ||
869 | nla_put_failure: | |
870 | err = -ENOBUFS; | |
871 | nlmsg_free(msg); | |
872 | out: | |
873 | cfg80211_put_dev(drv); | |
874 | dev_put(dev); | |
3b85875a JB |
875 | unlock_rtnl: |
876 | rtnl_unlock(); | |
877 | ||
41ade00f JB |
878 | return err; |
879 | } | |
880 | ||
881 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
882 | { | |
883 | struct cfg80211_registered_device *drv; | |
884 | int err; | |
885 | struct net_device *dev; | |
886 | u8 key_idx; | |
3cfcf6ac JM |
887 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
888 | u8 key_index); | |
41ade00f JB |
889 | |
890 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
891 | return -EINVAL; | |
892 | ||
893 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
894 | ||
3cfcf6ac JM |
895 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) { |
896 | if (key_idx < 4 || key_idx > 5) | |
897 | return -EINVAL; | |
898 | } else if (key_idx > 3) | |
41ade00f JB |
899 | return -EINVAL; |
900 | ||
901 | /* currently only support setting default key */ | |
3cfcf6ac JM |
902 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] && |
903 | !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) | |
41ade00f JB |
904 | return -EINVAL; |
905 | ||
3b85875a JB |
906 | rtnl_lock(); |
907 | ||
bba95fef | 908 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 909 | if (err) |
3b85875a | 910 | goto unlock_rtnl; |
41ade00f | 911 | |
3cfcf6ac JM |
912 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT]) |
913 | func = drv->ops->set_default_key; | |
914 | else | |
915 | func = drv->ops->set_default_mgmt_key; | |
916 | ||
917 | if (!func) { | |
41ade00f JB |
918 | err = -EOPNOTSUPP; |
919 | goto out; | |
920 | } | |
921 | ||
3cfcf6ac | 922 | err = func(&drv->wiphy, dev, key_idx); |
41ade00f JB |
923 | |
924 | out: | |
925 | cfg80211_put_dev(drv); | |
926 | dev_put(dev); | |
3b85875a JB |
927 | |
928 | unlock_rtnl: | |
929 | rtnl_unlock(); | |
930 | ||
41ade00f JB |
931 | return err; |
932 | } | |
933 | ||
934 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
935 | { | |
936 | struct cfg80211_registered_device *drv; | |
937 | int err; | |
938 | struct net_device *dev; | |
939 | struct key_params params; | |
940 | u8 key_idx = 0; | |
941 | u8 *mac_addr = NULL; | |
942 | ||
943 | memset(¶ms, 0, sizeof(params)); | |
944 | ||
945 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
946 | return -EINVAL; | |
947 | ||
948 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
949 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
950 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
951 | } | |
952 | ||
953 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
954 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
955 | ||
956 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
957 | ||
958 | if (info->attrs[NL80211_ATTR_MAC]) | |
959 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
960 | ||
3cfcf6ac | 961 | if (key_idx > 5) |
41ade00f JB |
962 | return -EINVAL; |
963 | ||
964 | /* | |
965 | * Disallow pairwise keys with non-zero index unless it's WEP | |
966 | * (because current deployments use pairwise WEP keys with | |
967 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
968 | */ | |
969 | if (mac_addr && key_idx && | |
970 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
971 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
972 | return -EINVAL; | |
973 | ||
974 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
975 | switch (params.cipher) { | |
976 | case WLAN_CIPHER_SUITE_WEP40: | |
977 | if (params.key_len != 5) | |
978 | return -EINVAL; | |
979 | break; | |
980 | case WLAN_CIPHER_SUITE_TKIP: | |
981 | if (params.key_len != 32) | |
982 | return -EINVAL; | |
983 | break; | |
984 | case WLAN_CIPHER_SUITE_CCMP: | |
985 | if (params.key_len != 16) | |
986 | return -EINVAL; | |
987 | break; | |
988 | case WLAN_CIPHER_SUITE_WEP104: | |
989 | if (params.key_len != 13) | |
990 | return -EINVAL; | |
991 | break; | |
3cfcf6ac JM |
992 | case WLAN_CIPHER_SUITE_AES_CMAC: |
993 | if (params.key_len != 16) | |
994 | return -EINVAL; | |
995 | break; | |
41ade00f JB |
996 | default: |
997 | return -EINVAL; | |
998 | } | |
999 | ||
3b85875a JB |
1000 | rtnl_lock(); |
1001 | ||
bba95fef | 1002 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1003 | if (err) |
3b85875a | 1004 | goto unlock_rtnl; |
41ade00f JB |
1005 | |
1006 | if (!drv->ops->add_key) { | |
1007 | err = -EOPNOTSUPP; | |
1008 | goto out; | |
1009 | } | |
1010 | ||
41ade00f | 1011 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); |
41ade00f JB |
1012 | |
1013 | out: | |
1014 | cfg80211_put_dev(drv); | |
1015 | dev_put(dev); | |
3b85875a JB |
1016 | unlock_rtnl: |
1017 | rtnl_unlock(); | |
1018 | ||
41ade00f JB |
1019 | return err; |
1020 | } | |
1021 | ||
1022 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1023 | { | |
1024 | struct cfg80211_registered_device *drv; | |
1025 | int err; | |
1026 | struct net_device *dev; | |
1027 | u8 key_idx = 0; | |
1028 | u8 *mac_addr = NULL; | |
1029 | ||
1030 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1031 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1032 | ||
3cfcf6ac | 1033 | if (key_idx > 5) |
41ade00f JB |
1034 | return -EINVAL; |
1035 | ||
1036 | if (info->attrs[NL80211_ATTR_MAC]) | |
1037 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1038 | ||
3b85875a JB |
1039 | rtnl_lock(); |
1040 | ||
bba95fef | 1041 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1042 | if (err) |
3b85875a | 1043 | goto unlock_rtnl; |
41ade00f JB |
1044 | |
1045 | if (!drv->ops->del_key) { | |
1046 | err = -EOPNOTSUPP; | |
1047 | goto out; | |
1048 | } | |
1049 | ||
41ade00f | 1050 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); |
41ade00f JB |
1051 | |
1052 | out: | |
1053 | cfg80211_put_dev(drv); | |
1054 | dev_put(dev); | |
3b85875a JB |
1055 | |
1056 | unlock_rtnl: | |
1057 | rtnl_unlock(); | |
1058 | ||
41ade00f JB |
1059 | return err; |
1060 | } | |
1061 | ||
ed1b6cc7 JB |
1062 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1063 | { | |
1064 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1065 | struct beacon_parameters *info); | |
1066 | struct cfg80211_registered_device *drv; | |
1067 | int err; | |
1068 | struct net_device *dev; | |
1069 | struct beacon_parameters params; | |
1070 | int haveinfo = 0; | |
1071 | ||
3b85875a JB |
1072 | rtnl_lock(); |
1073 | ||
bba95fef | 1074 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1075 | if (err) |
3b85875a | 1076 | goto unlock_rtnl; |
ed1b6cc7 | 1077 | |
eec60b03 JM |
1078 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1079 | err = -EOPNOTSUPP; | |
1080 | goto out; | |
1081 | } | |
1082 | ||
ed1b6cc7 JB |
1083 | switch (info->genlhdr->cmd) { |
1084 | case NL80211_CMD_NEW_BEACON: | |
1085 | /* these are required for NEW_BEACON */ | |
1086 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1087 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1088 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1089 | err = -EINVAL; | |
1090 | goto out; | |
1091 | } | |
1092 | ||
1093 | call = drv->ops->add_beacon; | |
1094 | break; | |
1095 | case NL80211_CMD_SET_BEACON: | |
1096 | call = drv->ops->set_beacon; | |
1097 | break; | |
1098 | default: | |
1099 | WARN_ON(1); | |
1100 | err = -EOPNOTSUPP; | |
1101 | goto out; | |
1102 | } | |
1103 | ||
1104 | if (!call) { | |
1105 | err = -EOPNOTSUPP; | |
1106 | goto out; | |
1107 | } | |
1108 | ||
1109 | memset(¶ms, 0, sizeof(params)); | |
1110 | ||
1111 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1112 | params.interval = | |
1113 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1114 | haveinfo = 1; | |
1115 | } | |
1116 | ||
1117 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1118 | params.dtim_period = | |
1119 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1120 | haveinfo = 1; | |
1121 | } | |
1122 | ||
1123 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1124 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1125 | params.head_len = | |
1126 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1127 | haveinfo = 1; | |
1128 | } | |
1129 | ||
1130 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1131 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1132 | params.tail_len = | |
1133 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1134 | haveinfo = 1; | |
1135 | } | |
1136 | ||
1137 | if (!haveinfo) { | |
1138 | err = -EINVAL; | |
1139 | goto out; | |
1140 | } | |
1141 | ||
ed1b6cc7 | 1142 | err = call(&drv->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1143 | |
1144 | out: | |
1145 | cfg80211_put_dev(drv); | |
1146 | dev_put(dev); | |
3b85875a JB |
1147 | unlock_rtnl: |
1148 | rtnl_unlock(); | |
1149 | ||
ed1b6cc7 JB |
1150 | return err; |
1151 | } | |
1152 | ||
1153 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1154 | { | |
1155 | struct cfg80211_registered_device *drv; | |
1156 | int err; | |
1157 | struct net_device *dev; | |
1158 | ||
3b85875a JB |
1159 | rtnl_lock(); |
1160 | ||
bba95fef | 1161 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1162 | if (err) |
3b85875a | 1163 | goto unlock_rtnl; |
ed1b6cc7 JB |
1164 | |
1165 | if (!drv->ops->del_beacon) { | |
1166 | err = -EOPNOTSUPP; | |
1167 | goto out; | |
1168 | } | |
1169 | ||
eec60b03 JM |
1170 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1171 | err = -EOPNOTSUPP; | |
1172 | goto out; | |
1173 | } | |
ed1b6cc7 | 1174 | err = drv->ops->del_beacon(&drv->wiphy, dev); |
ed1b6cc7 JB |
1175 | |
1176 | out: | |
1177 | cfg80211_put_dev(drv); | |
1178 | dev_put(dev); | |
3b85875a JB |
1179 | unlock_rtnl: |
1180 | rtnl_unlock(); | |
1181 | ||
ed1b6cc7 JB |
1182 | return err; |
1183 | } | |
1184 | ||
5727ef1b JB |
1185 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1186 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1187 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1188 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
1189 | }; | |
1190 | ||
1191 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
1192 | { | |
1193 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
1194 | int flag; | |
1195 | ||
1196 | *staflags = 0; | |
1197 | ||
1198 | if (!nla) | |
1199 | return 0; | |
1200 | ||
1201 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1202 | nla, sta_flags_policy)) | |
1203 | return -EINVAL; | |
1204 | ||
1205 | *staflags = STATION_FLAG_CHANGED; | |
1206 | ||
1207 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1208 | if (flags[flag]) | |
1209 | *staflags |= (1<<flag); | |
1210 | ||
1211 | return 0; | |
1212 | } | |
1213 | ||
420e7fab HR |
1214 | static u16 nl80211_calculate_bitrate(struct rate_info *rate) |
1215 | { | |
1216 | int modulation, streams, bitrate; | |
1217 | ||
1218 | if (!(rate->flags & RATE_INFO_FLAGS_MCS)) | |
1219 | return rate->legacy; | |
1220 | ||
1221 | /* the formula below does only work for MCS values smaller than 32 */ | |
1222 | if (rate->mcs >= 32) | |
1223 | return 0; | |
1224 | ||
1225 | modulation = rate->mcs & 7; | |
1226 | streams = (rate->mcs >> 3) + 1; | |
1227 | ||
1228 | bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ? | |
1229 | 13500000 : 6500000; | |
1230 | ||
1231 | if (modulation < 4) | |
1232 | bitrate *= (modulation + 1); | |
1233 | else if (modulation == 4) | |
1234 | bitrate *= (modulation + 2); | |
1235 | else | |
1236 | bitrate *= (modulation + 3); | |
1237 | ||
1238 | bitrate *= streams; | |
1239 | ||
1240 | if (rate->flags & RATE_INFO_FLAGS_SHORT_GI) | |
1241 | bitrate = (bitrate / 9) * 10; | |
1242 | ||
1243 | /* do NOT round down here */ | |
1244 | return (bitrate + 50000) / 100000; | |
1245 | } | |
1246 | ||
fd5b74dc JB |
1247 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1248 | int flags, struct net_device *dev, | |
2ec600d6 | 1249 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1250 | { |
1251 | void *hdr; | |
420e7fab HR |
1252 | struct nlattr *sinfoattr, *txrate; |
1253 | u16 bitrate; | |
fd5b74dc JB |
1254 | |
1255 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1256 | if (!hdr) | |
1257 | return -1; | |
1258 | ||
1259 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1260 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1261 | ||
2ec600d6 LCC |
1262 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1263 | if (!sinfoattr) | |
fd5b74dc | 1264 | goto nla_put_failure; |
2ec600d6 LCC |
1265 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1266 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1267 | sinfo->inactive_time); | |
1268 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1269 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1270 | sinfo->rx_bytes); | |
1271 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1272 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1273 | sinfo->tx_bytes); | |
1274 | if (sinfo->filled & STATION_INFO_LLID) | |
1275 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1276 | sinfo->llid); | |
1277 | if (sinfo->filled & STATION_INFO_PLID) | |
1278 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1279 | sinfo->plid); | |
1280 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1281 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1282 | sinfo->plink_state); | |
420e7fab HR |
1283 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1284 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1285 | sinfo->signal); | |
1286 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1287 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1288 | if (!txrate) | |
1289 | goto nla_put_failure; | |
1290 | ||
1291 | /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
1292 | bitrate = nl80211_calculate_bitrate(&sinfo->txrate); | |
1293 | if (bitrate > 0) | |
1294 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1295 | |
420e7fab HR |
1296 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1297 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1298 | sinfo->txrate.mcs); | |
1299 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1300 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1301 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1302 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1303 | ||
1304 | nla_nest_end(msg, txrate); | |
1305 | } | |
98c8a60a JM |
1306 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1307 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1308 | sinfo->rx_packets); | |
1309 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1310 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1311 | sinfo->tx_packets); | |
2ec600d6 | 1312 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1313 | |
1314 | return genlmsg_end(msg, hdr); | |
1315 | ||
1316 | nla_put_failure: | |
bc3ed28c TG |
1317 | genlmsg_cancel(msg, hdr); |
1318 | return -EMSGSIZE; | |
fd5b74dc JB |
1319 | } |
1320 | ||
2ec600d6 | 1321 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1322 | struct netlink_callback *cb) |
2ec600d6 | 1323 | { |
2ec600d6 LCC |
1324 | struct station_info sinfo; |
1325 | struct cfg80211_registered_device *dev; | |
bba95fef | 1326 | struct net_device *netdev; |
2ec600d6 | 1327 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1328 | int ifidx = cb->args[0]; |
1329 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1330 | int err; |
2ec600d6 | 1331 | |
bba95fef JB |
1332 | if (!ifidx) { |
1333 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1334 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1335 | nl80211_policy); | |
1336 | if (err) | |
1337 | return err; | |
2ec600d6 | 1338 | |
bba95fef JB |
1339 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
1340 | return -EINVAL; | |
2ec600d6 | 1341 | |
bba95fef JB |
1342 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
1343 | if (!ifidx) | |
1344 | return -EINVAL; | |
2ec600d6 | 1345 | } |
2ec600d6 | 1346 | |
3b85875a JB |
1347 | rtnl_lock(); |
1348 | ||
1349 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1350 | if (!netdev) { | |
1351 | err = -ENODEV; | |
1352 | goto out_rtnl; | |
1353 | } | |
2ec600d6 | 1354 | |
bba95fef JB |
1355 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
1356 | if (IS_ERR(dev)) { | |
1357 | err = PTR_ERR(dev); | |
3b85875a | 1358 | goto out_rtnl; |
bba95fef JB |
1359 | } |
1360 | ||
1361 | if (!dev->ops->dump_station) { | |
eec60b03 | 1362 | err = -EOPNOTSUPP; |
bba95fef JB |
1363 | goto out_err; |
1364 | } | |
1365 | ||
bba95fef JB |
1366 | while (1) { |
1367 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1368 | mac_addr, &sinfo); | |
1369 | if (err == -ENOENT) | |
1370 | break; | |
1371 | if (err) | |
3b85875a | 1372 | goto out_err; |
bba95fef JB |
1373 | |
1374 | if (nl80211_send_station(skb, | |
1375 | NETLINK_CB(cb->skb).pid, | |
1376 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1377 | netdev, mac_addr, | |
1378 | &sinfo) < 0) | |
1379 | goto out; | |
1380 | ||
1381 | sta_idx++; | |
1382 | } | |
1383 | ||
1384 | ||
1385 | out: | |
1386 | cb->args[1] = sta_idx; | |
1387 | err = skb->len; | |
bba95fef JB |
1388 | out_err: |
1389 | cfg80211_put_dev(dev); | |
3b85875a JB |
1390 | out_rtnl: |
1391 | rtnl_unlock(); | |
bba95fef JB |
1392 | |
1393 | return err; | |
2ec600d6 | 1394 | } |
fd5b74dc | 1395 | |
5727ef1b JB |
1396 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1397 | { | |
fd5b74dc JB |
1398 | struct cfg80211_registered_device *drv; |
1399 | int err; | |
1400 | struct net_device *dev; | |
2ec600d6 | 1401 | struct station_info sinfo; |
fd5b74dc JB |
1402 | struct sk_buff *msg; |
1403 | u8 *mac_addr = NULL; | |
1404 | ||
2ec600d6 | 1405 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1406 | |
1407 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1408 | return -EINVAL; | |
1409 | ||
1410 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1411 | ||
3b85875a JB |
1412 | rtnl_lock(); |
1413 | ||
bba95fef | 1414 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
fd5b74dc | 1415 | if (err) |
3b85875a | 1416 | goto out_rtnl; |
fd5b74dc JB |
1417 | |
1418 | if (!drv->ops->get_station) { | |
1419 | err = -EOPNOTSUPP; | |
1420 | goto out; | |
1421 | } | |
1422 | ||
2ec600d6 | 1423 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1424 | if (err) |
1425 | goto out; | |
1426 | ||
fd5b74dc JB |
1427 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
1428 | if (!msg) | |
1429 | goto out; | |
1430 | ||
1431 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1432 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1433 | goto out_free; |
1434 | ||
1435 | err = genlmsg_unicast(msg, info->snd_pid); | |
1436 | goto out; | |
1437 | ||
1438 | out_free: | |
1439 | nlmsg_free(msg); | |
fd5b74dc JB |
1440 | out: |
1441 | cfg80211_put_dev(drv); | |
1442 | dev_put(dev); | |
3b85875a JB |
1443 | out_rtnl: |
1444 | rtnl_unlock(); | |
1445 | ||
fd5b74dc | 1446 | return err; |
5727ef1b JB |
1447 | } |
1448 | ||
1449 | /* | |
1450 | * Get vlan interface making sure it is on the right wiphy. | |
1451 | */ | |
1452 | static int get_vlan(struct nlattr *vlanattr, | |
1453 | struct cfg80211_registered_device *rdev, | |
1454 | struct net_device **vlan) | |
1455 | { | |
1456 | *vlan = NULL; | |
1457 | ||
1458 | if (vlanattr) { | |
1459 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1460 | if (!*vlan) | |
1461 | return -ENODEV; | |
1462 | if (!(*vlan)->ieee80211_ptr) | |
1463 | return -EINVAL; | |
1464 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1465 | return -EINVAL; | |
1466 | } | |
1467 | return 0; | |
1468 | } | |
1469 | ||
1470 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1471 | { | |
1472 | struct cfg80211_registered_device *drv; | |
1473 | int err; | |
1474 | struct net_device *dev; | |
1475 | struct station_parameters params; | |
1476 | u8 *mac_addr = NULL; | |
1477 | ||
1478 | memset(¶ms, 0, sizeof(params)); | |
1479 | ||
1480 | params.listen_interval = -1; | |
1481 | ||
1482 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1483 | return -EINVAL; | |
1484 | ||
1485 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1486 | return -EINVAL; | |
1487 | ||
1488 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1489 | ||
1490 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1491 | params.supported_rates = | |
1492 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1493 | params.supported_rates_len = | |
1494 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1495 | } | |
1496 | ||
1497 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1498 | params.listen_interval = | |
1499 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1500 | ||
36aedc90 JM |
1501 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1502 | params.ht_capa = | |
1503 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1504 | ||
5727ef1b JB |
1505 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], |
1506 | ¶ms.station_flags)) | |
1507 | return -EINVAL; | |
1508 | ||
2ec600d6 LCC |
1509 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1510 | params.plink_action = | |
1511 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1512 | ||
3b85875a JB |
1513 | rtnl_lock(); |
1514 | ||
bba95fef | 1515 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1516 | if (err) |
3b85875a | 1517 | goto out_rtnl; |
5727ef1b JB |
1518 | |
1519 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1520 | if (err) | |
1521 | goto out; | |
1522 | ||
1523 | if (!drv->ops->change_station) { | |
1524 | err = -EOPNOTSUPP; | |
1525 | goto out; | |
1526 | } | |
1527 | ||
5727ef1b | 1528 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1529 | |
1530 | out: | |
1531 | if (params.vlan) | |
1532 | dev_put(params.vlan); | |
1533 | cfg80211_put_dev(drv); | |
1534 | dev_put(dev); | |
3b85875a JB |
1535 | out_rtnl: |
1536 | rtnl_unlock(); | |
1537 | ||
5727ef1b JB |
1538 | return err; |
1539 | } | |
1540 | ||
1541 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1542 | { | |
1543 | struct cfg80211_registered_device *drv; | |
1544 | int err; | |
1545 | struct net_device *dev; | |
1546 | struct station_parameters params; | |
1547 | u8 *mac_addr = NULL; | |
1548 | ||
1549 | memset(¶ms, 0, sizeof(params)); | |
1550 | ||
1551 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1552 | return -EINVAL; | |
1553 | ||
1554 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1555 | return -EINVAL; | |
1556 | ||
1557 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1558 | return -EINVAL; | |
1559 | ||
1560 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1561 | return -EINVAL; | |
1562 | ||
1563 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1564 | params.supported_rates = | |
1565 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1566 | params.supported_rates_len = | |
1567 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1568 | params.listen_interval = | |
1569 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
16f2e85d | 1570 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
36aedc90 JM |
1571 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1572 | params.ht_capa = | |
1573 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b JB |
1574 | |
1575 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1576 | ¶ms.station_flags)) | |
1577 | return -EINVAL; | |
1578 | ||
3b85875a JB |
1579 | rtnl_lock(); |
1580 | ||
bba95fef | 1581 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1582 | if (err) |
3b85875a | 1583 | goto out_rtnl; |
5727ef1b JB |
1584 | |
1585 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1586 | if (err) | |
1587 | goto out; | |
1588 | ||
1589 | if (!drv->ops->add_station) { | |
1590 | err = -EOPNOTSUPP; | |
1591 | goto out; | |
1592 | } | |
1593 | ||
35a8efe1 JM |
1594 | if (!netif_running(dev)) { |
1595 | err = -ENETDOWN; | |
1596 | goto out; | |
1597 | } | |
1598 | ||
5727ef1b | 1599 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1600 | |
1601 | out: | |
1602 | if (params.vlan) | |
1603 | dev_put(params.vlan); | |
1604 | cfg80211_put_dev(drv); | |
1605 | dev_put(dev); | |
3b85875a JB |
1606 | out_rtnl: |
1607 | rtnl_unlock(); | |
1608 | ||
5727ef1b JB |
1609 | return err; |
1610 | } | |
1611 | ||
1612 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1613 | { | |
1614 | struct cfg80211_registered_device *drv; | |
1615 | int err; | |
1616 | struct net_device *dev; | |
1617 | u8 *mac_addr = NULL; | |
1618 | ||
1619 | if (info->attrs[NL80211_ATTR_MAC]) | |
1620 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1621 | ||
3b85875a JB |
1622 | rtnl_lock(); |
1623 | ||
bba95fef | 1624 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1625 | if (err) |
3b85875a | 1626 | goto out_rtnl; |
5727ef1b JB |
1627 | |
1628 | if (!drv->ops->del_station) { | |
1629 | err = -EOPNOTSUPP; | |
1630 | goto out; | |
1631 | } | |
1632 | ||
5727ef1b | 1633 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); |
5727ef1b JB |
1634 | |
1635 | out: | |
1636 | cfg80211_put_dev(drv); | |
1637 | dev_put(dev); | |
3b85875a JB |
1638 | out_rtnl: |
1639 | rtnl_unlock(); | |
1640 | ||
5727ef1b JB |
1641 | return err; |
1642 | } | |
1643 | ||
2ec600d6 LCC |
1644 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1645 | int flags, struct net_device *dev, | |
1646 | u8 *dst, u8 *next_hop, | |
1647 | struct mpath_info *pinfo) | |
1648 | { | |
1649 | void *hdr; | |
1650 | struct nlattr *pinfoattr; | |
1651 | ||
1652 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1653 | if (!hdr) | |
1654 | return -1; | |
1655 | ||
1656 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1657 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1658 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1659 | ||
1660 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1661 | if (!pinfoattr) | |
1662 | goto nla_put_failure; | |
1663 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1664 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1665 | pinfo->frame_qlen); | |
1666 | if (pinfo->filled & MPATH_INFO_DSN) | |
1667 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1668 | pinfo->dsn); | |
1669 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1670 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1671 | pinfo->metric); | |
1672 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1673 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1674 | pinfo->exptime); | |
1675 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1676 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1677 | pinfo->flags); | |
1678 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1679 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1680 | pinfo->discovery_timeout); | |
1681 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1682 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1683 | pinfo->discovery_retries); | |
1684 | ||
1685 | nla_nest_end(msg, pinfoattr); | |
1686 | ||
1687 | return genlmsg_end(msg, hdr); | |
1688 | ||
1689 | nla_put_failure: | |
bc3ed28c TG |
1690 | genlmsg_cancel(msg, hdr); |
1691 | return -EMSGSIZE; | |
2ec600d6 LCC |
1692 | } |
1693 | ||
1694 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 1695 | struct netlink_callback *cb) |
2ec600d6 | 1696 | { |
2ec600d6 LCC |
1697 | struct mpath_info pinfo; |
1698 | struct cfg80211_registered_device *dev; | |
bba95fef | 1699 | struct net_device *netdev; |
2ec600d6 LCC |
1700 | u8 dst[ETH_ALEN]; |
1701 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
1702 | int ifidx = cb->args[0]; |
1703 | int path_idx = cb->args[1]; | |
2ec600d6 | 1704 | int err; |
2ec600d6 | 1705 | |
bba95fef JB |
1706 | if (!ifidx) { |
1707 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1708 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1709 | nl80211_policy); | |
1710 | if (err) | |
1711 | return err; | |
1712 | ||
1713 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
1714 | return -EINVAL; | |
1715 | ||
1716 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
1717 | if (!ifidx) | |
1718 | return -EINVAL; | |
1719 | } | |
1720 | ||
3b85875a JB |
1721 | rtnl_lock(); |
1722 | ||
1723 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1724 | if (!netdev) { | |
1725 | err = -ENODEV; | |
1726 | goto out_rtnl; | |
1727 | } | |
bba95fef JB |
1728 | |
1729 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
1730 | if (IS_ERR(dev)) { | |
1731 | err = PTR_ERR(dev); | |
3b85875a | 1732 | goto out_rtnl; |
bba95fef JB |
1733 | } |
1734 | ||
1735 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 1736 | err = -EOPNOTSUPP; |
bba95fef JB |
1737 | goto out_err; |
1738 | } | |
1739 | ||
eec60b03 JM |
1740 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1741 | err = -EOPNOTSUPP; | |
1742 | goto out; | |
1743 | } | |
1744 | ||
bba95fef JB |
1745 | while (1) { |
1746 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
1747 | dst, next_hop, &pinfo); | |
1748 | if (err == -ENOENT) | |
2ec600d6 | 1749 | break; |
bba95fef | 1750 | if (err) |
3b85875a | 1751 | goto out_err; |
2ec600d6 | 1752 | |
bba95fef JB |
1753 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
1754 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1755 | netdev, dst, next_hop, | |
1756 | &pinfo) < 0) | |
1757 | goto out; | |
2ec600d6 | 1758 | |
bba95fef | 1759 | path_idx++; |
2ec600d6 | 1760 | } |
2ec600d6 | 1761 | |
2ec600d6 | 1762 | |
bba95fef JB |
1763 | out: |
1764 | cb->args[1] = path_idx; | |
1765 | err = skb->len; | |
bba95fef JB |
1766 | out_err: |
1767 | cfg80211_put_dev(dev); | |
3b85875a JB |
1768 | out_rtnl: |
1769 | rtnl_unlock(); | |
bba95fef JB |
1770 | |
1771 | return err; | |
2ec600d6 LCC |
1772 | } |
1773 | ||
1774 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
1775 | { | |
1776 | struct cfg80211_registered_device *drv; | |
1777 | int err; | |
1778 | struct net_device *dev; | |
1779 | struct mpath_info pinfo; | |
1780 | struct sk_buff *msg; | |
1781 | u8 *dst = NULL; | |
1782 | u8 next_hop[ETH_ALEN]; | |
1783 | ||
1784 | memset(&pinfo, 0, sizeof(pinfo)); | |
1785 | ||
1786 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1787 | return -EINVAL; | |
1788 | ||
1789 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1790 | ||
3b85875a JB |
1791 | rtnl_lock(); |
1792 | ||
bba95fef | 1793 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1794 | if (err) |
3b85875a | 1795 | goto out_rtnl; |
2ec600d6 LCC |
1796 | |
1797 | if (!drv->ops->get_mpath) { | |
1798 | err = -EOPNOTSUPP; | |
1799 | goto out; | |
1800 | } | |
1801 | ||
eec60b03 JM |
1802 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1803 | err = -EOPNOTSUPP; | |
1804 | goto out; | |
1805 | } | |
1806 | ||
2ec600d6 | 1807 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
1808 | if (err) |
1809 | goto out; | |
1810 | ||
1811 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1812 | if (!msg) | |
1813 | goto out; | |
1814 | ||
1815 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
1816 | dev, dst, next_hop, &pinfo) < 0) | |
1817 | goto out_free; | |
1818 | ||
1819 | err = genlmsg_unicast(msg, info->snd_pid); | |
1820 | goto out; | |
1821 | ||
1822 | out_free: | |
1823 | nlmsg_free(msg); | |
2ec600d6 LCC |
1824 | out: |
1825 | cfg80211_put_dev(drv); | |
1826 | dev_put(dev); | |
3b85875a JB |
1827 | out_rtnl: |
1828 | rtnl_unlock(); | |
1829 | ||
2ec600d6 LCC |
1830 | return err; |
1831 | } | |
1832 | ||
1833 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
1834 | { | |
1835 | struct cfg80211_registered_device *drv; | |
1836 | int err; | |
1837 | struct net_device *dev; | |
1838 | u8 *dst = NULL; | |
1839 | u8 *next_hop = NULL; | |
1840 | ||
1841 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1842 | return -EINVAL; | |
1843 | ||
1844 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1845 | return -EINVAL; | |
1846 | ||
1847 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1848 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1849 | ||
3b85875a JB |
1850 | rtnl_lock(); |
1851 | ||
bba95fef | 1852 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1853 | if (err) |
3b85875a | 1854 | goto out_rtnl; |
2ec600d6 LCC |
1855 | |
1856 | if (!drv->ops->change_mpath) { | |
1857 | err = -EOPNOTSUPP; | |
1858 | goto out; | |
1859 | } | |
1860 | ||
eec60b03 JM |
1861 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1862 | err = -EOPNOTSUPP; | |
1863 | goto out; | |
1864 | } | |
1865 | ||
35a8efe1 JM |
1866 | if (!netif_running(dev)) { |
1867 | err = -ENETDOWN; | |
1868 | goto out; | |
1869 | } | |
1870 | ||
2ec600d6 | 1871 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
1872 | |
1873 | out: | |
1874 | cfg80211_put_dev(drv); | |
1875 | dev_put(dev); | |
3b85875a JB |
1876 | out_rtnl: |
1877 | rtnl_unlock(); | |
1878 | ||
2ec600d6 LCC |
1879 | return err; |
1880 | } | |
1881 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
1882 | { | |
1883 | struct cfg80211_registered_device *drv; | |
1884 | int err; | |
1885 | struct net_device *dev; | |
1886 | u8 *dst = NULL; | |
1887 | u8 *next_hop = NULL; | |
1888 | ||
1889 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1890 | return -EINVAL; | |
1891 | ||
1892 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1893 | return -EINVAL; | |
1894 | ||
1895 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1896 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1897 | ||
3b85875a JB |
1898 | rtnl_lock(); |
1899 | ||
bba95fef | 1900 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1901 | if (err) |
3b85875a | 1902 | goto out_rtnl; |
2ec600d6 LCC |
1903 | |
1904 | if (!drv->ops->add_mpath) { | |
1905 | err = -EOPNOTSUPP; | |
1906 | goto out; | |
1907 | } | |
1908 | ||
eec60b03 JM |
1909 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1910 | err = -EOPNOTSUPP; | |
1911 | goto out; | |
1912 | } | |
1913 | ||
35a8efe1 JM |
1914 | if (!netif_running(dev)) { |
1915 | err = -ENETDOWN; | |
1916 | goto out; | |
1917 | } | |
1918 | ||
2ec600d6 | 1919 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
1920 | |
1921 | out: | |
1922 | cfg80211_put_dev(drv); | |
1923 | dev_put(dev); | |
3b85875a JB |
1924 | out_rtnl: |
1925 | rtnl_unlock(); | |
1926 | ||
2ec600d6 LCC |
1927 | return err; |
1928 | } | |
1929 | ||
1930 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
1931 | { | |
1932 | struct cfg80211_registered_device *drv; | |
1933 | int err; | |
1934 | struct net_device *dev; | |
1935 | u8 *dst = NULL; | |
1936 | ||
1937 | if (info->attrs[NL80211_ATTR_MAC]) | |
1938 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1939 | ||
3b85875a JB |
1940 | rtnl_lock(); |
1941 | ||
bba95fef | 1942 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1943 | if (err) |
3b85875a | 1944 | goto out_rtnl; |
2ec600d6 LCC |
1945 | |
1946 | if (!drv->ops->del_mpath) { | |
1947 | err = -EOPNOTSUPP; | |
1948 | goto out; | |
1949 | } | |
1950 | ||
2ec600d6 | 1951 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); |
2ec600d6 LCC |
1952 | |
1953 | out: | |
1954 | cfg80211_put_dev(drv); | |
1955 | dev_put(dev); | |
3b85875a JB |
1956 | out_rtnl: |
1957 | rtnl_unlock(); | |
1958 | ||
2ec600d6 LCC |
1959 | return err; |
1960 | } | |
1961 | ||
9f1ba906 JM |
1962 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
1963 | { | |
1964 | struct cfg80211_registered_device *drv; | |
1965 | int err; | |
1966 | struct net_device *dev; | |
1967 | struct bss_parameters params; | |
1968 | ||
1969 | memset(¶ms, 0, sizeof(params)); | |
1970 | /* default to not changing parameters */ | |
1971 | params.use_cts_prot = -1; | |
1972 | params.use_short_preamble = -1; | |
1973 | params.use_short_slot_time = -1; | |
1974 | ||
1975 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
1976 | params.use_cts_prot = | |
1977 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
1978 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
1979 | params.use_short_preamble = | |
1980 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
1981 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
1982 | params.use_short_slot_time = | |
1983 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
1984 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
1985 | params.basic_rates = | |
1986 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
1987 | params.basic_rates_len = | |
1988 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
1989 | } | |
9f1ba906 | 1990 | |
3b85875a JB |
1991 | rtnl_lock(); |
1992 | ||
9f1ba906 JM |
1993 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
1994 | if (err) | |
3b85875a | 1995 | goto out_rtnl; |
9f1ba906 JM |
1996 | |
1997 | if (!drv->ops->change_bss) { | |
1998 | err = -EOPNOTSUPP; | |
1999 | goto out; | |
2000 | } | |
2001 | ||
eec60b03 JM |
2002 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2003 | err = -EOPNOTSUPP; | |
2004 | goto out; | |
2005 | } | |
2006 | ||
9f1ba906 | 2007 | err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms); |
9f1ba906 JM |
2008 | |
2009 | out: | |
2010 | cfg80211_put_dev(drv); | |
2011 | dev_put(dev); | |
3b85875a JB |
2012 | out_rtnl: |
2013 | rtnl_unlock(); | |
2014 | ||
9f1ba906 JM |
2015 | return err; |
2016 | } | |
2017 | ||
b2e1b302 LR |
2018 | static const struct nla_policy |
2019 | reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
2020 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
2021 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2022 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2023 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2024 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2025 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2026 | }; | |
2027 | ||
2028 | static int parse_reg_rule(struct nlattr *tb[], | |
2029 | struct ieee80211_reg_rule *reg_rule) | |
2030 | { | |
2031 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2032 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2033 | ||
2034 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2035 | return -EINVAL; | |
2036 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2037 | return -EINVAL; | |
2038 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2039 | return -EINVAL; | |
2040 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2041 | return -EINVAL; | |
2042 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2043 | return -EINVAL; | |
2044 | ||
2045 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2046 | ||
2047 | freq_range->start_freq_khz = | |
2048 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2049 | freq_range->end_freq_khz = | |
2050 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2051 | freq_range->max_bandwidth_khz = | |
2052 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2053 | ||
2054 | power_rule->max_eirp = | |
2055 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2056 | ||
2057 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2058 | power_rule->max_antenna_gain = | |
2059 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2060 | ||
2061 | return 0; | |
2062 | } | |
2063 | ||
2064 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2065 | { | |
2066 | int r; | |
2067 | char *data = NULL; | |
2068 | ||
80778f18 LR |
2069 | /* |
2070 | * You should only get this when cfg80211 hasn't yet initialized | |
2071 | * completely when built-in to the kernel right between the time | |
2072 | * window between nl80211_init() and regulatory_init(), if that is | |
2073 | * even possible. | |
2074 | */ | |
2075 | mutex_lock(&cfg80211_mutex); | |
2076 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2077 | mutex_unlock(&cfg80211_mutex); |
2078 | return -EINPROGRESS; | |
80778f18 | 2079 | } |
fe33eb39 | 2080 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2081 | |
fe33eb39 LR |
2082 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2083 | return -EINVAL; | |
b2e1b302 LR |
2084 | |
2085 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2086 | ||
2087 | #ifdef CONFIG_WIRELESS_OLD_REGULATORY | |
2088 | /* We ignore world regdom requests with the old regdom setup */ | |
fe33eb39 LR |
2089 | if (is_world_regdom(data)) |
2090 | return -EINVAL; | |
b2e1b302 | 2091 | #endif |
fe33eb39 LR |
2092 | |
2093 | r = regulatory_hint_user(data); | |
2094 | ||
b2e1b302 LR |
2095 | return r; |
2096 | } | |
2097 | ||
93da9cc1 | 2098 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2099 | struct genl_info *info) | |
2100 | { | |
2101 | struct cfg80211_registered_device *drv; | |
2102 | struct mesh_config cur_params; | |
2103 | int err; | |
2104 | struct net_device *dev; | |
2105 | void *hdr; | |
2106 | struct nlattr *pinfoattr; | |
2107 | struct sk_buff *msg; | |
2108 | ||
3b85875a JB |
2109 | rtnl_lock(); |
2110 | ||
93da9cc1 | 2111 | /* Look up our device */ |
2112 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2113 | if (err) | |
3b85875a | 2114 | goto out_rtnl; |
93da9cc1 | 2115 | |
f3f92586 JM |
2116 | if (!drv->ops->get_mesh_params) { |
2117 | err = -EOPNOTSUPP; | |
2118 | goto out; | |
2119 | } | |
2120 | ||
93da9cc1 | 2121 | /* Get the mesh params */ |
93da9cc1 | 2122 | err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params); |
93da9cc1 | 2123 | if (err) |
2124 | goto out; | |
2125 | ||
2126 | /* Draw up a netlink message to send back */ | |
2127 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
2128 | if (!msg) { | |
2129 | err = -ENOBUFS; | |
2130 | goto out; | |
2131 | } | |
2132 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2133 | NL80211_CMD_GET_MESH_PARAMS); | |
2134 | if (!hdr) | |
2135 | goto nla_put_failure; | |
2136 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2137 | if (!pinfoattr) | |
2138 | goto nla_put_failure; | |
2139 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2140 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2141 | cur_params.dot11MeshRetryTimeout); | |
2142 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2143 | cur_params.dot11MeshConfirmTimeout); | |
2144 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2145 | cur_params.dot11MeshHoldingTimeout); | |
2146 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2147 | cur_params.dot11MeshMaxPeerLinks); | |
2148 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2149 | cur_params.dot11MeshMaxRetries); | |
2150 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2151 | cur_params.dot11MeshTTL); | |
2152 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2153 | cur_params.auto_open_plinks); | |
2154 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2155 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2156 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2157 | cur_params.path_refresh_time); | |
2158 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2159 | cur_params.min_discovery_timeout); | |
2160 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2161 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2162 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2163 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2164 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2165 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
2166 | nla_nest_end(msg, pinfoattr); | |
2167 | genlmsg_end(msg, hdr); | |
2168 | err = genlmsg_unicast(msg, info->snd_pid); | |
2169 | goto out; | |
2170 | ||
3b85875a | 2171 | nla_put_failure: |
93da9cc1 | 2172 | genlmsg_cancel(msg, hdr); |
2173 | err = -EMSGSIZE; | |
3b85875a | 2174 | out: |
93da9cc1 | 2175 | /* Cleanup */ |
2176 | cfg80211_put_dev(drv); | |
2177 | dev_put(dev); | |
3b85875a JB |
2178 | out_rtnl: |
2179 | rtnl_unlock(); | |
2180 | ||
93da9cc1 | 2181 | return err; |
2182 | } | |
2183 | ||
2184 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2185 | do {\ | |
2186 | if (table[attr_num]) {\ | |
2187 | cfg.param = nla_fn(table[attr_num]); \ | |
2188 | mask |= (1 << (attr_num - 1)); \ | |
2189 | } \ | |
2190 | } while (0);\ | |
2191 | ||
2192 | static struct nla_policy | |
2193 | nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = { | |
2194 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
2195 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2196 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2197 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2198 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2199 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2200 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2201 | ||
2202 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2203 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2204 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2205 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2206 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2207 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2208 | }; | |
2209 | ||
2210 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2211 | { | |
2212 | int err; | |
2213 | u32 mask; | |
2214 | struct cfg80211_registered_device *drv; | |
2215 | struct net_device *dev; | |
2216 | struct mesh_config cfg; | |
2217 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2218 | struct nlattr *parent_attr; | |
2219 | ||
2220 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2221 | if (!parent_attr) | |
2222 | return -EINVAL; | |
2223 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2224 | parent_attr, nl80211_meshconf_params_policy)) | |
2225 | return -EINVAL; | |
2226 | ||
3b85875a JB |
2227 | rtnl_lock(); |
2228 | ||
93da9cc1 | 2229 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2230 | if (err) | |
3b85875a | 2231 | goto out_rtnl; |
93da9cc1 | 2232 | |
f3f92586 JM |
2233 | if (!drv->ops->set_mesh_params) { |
2234 | err = -EOPNOTSUPP; | |
2235 | goto out; | |
2236 | } | |
2237 | ||
93da9cc1 | 2238 | /* This makes sure that there aren't more than 32 mesh config |
2239 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2240 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2241 | ||
2242 | /* Fill in the params struct */ | |
2243 | mask = 0; | |
2244 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2245 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2246 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2247 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2248 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2249 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2250 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2251 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2252 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2253 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2254 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2255 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2256 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2257 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2258 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2259 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2260 | nla_get_u8); | |
2261 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2262 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2263 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2264 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2265 | nla_get_u16); | |
2266 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2267 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2268 | nla_get_u32); | |
2269 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2270 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2271 | nla_get_u16); | |
2272 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2273 | dot11MeshHWMPnetDiameterTraversalTime, | |
2274 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2275 | nla_get_u16); | |
2276 | ||
2277 | /* Apply changes */ | |
93da9cc1 | 2278 | err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask); |
93da9cc1 | 2279 | |
f3f92586 | 2280 | out: |
93da9cc1 | 2281 | /* cleanup */ |
2282 | cfg80211_put_dev(drv); | |
2283 | dev_put(dev); | |
3b85875a JB |
2284 | out_rtnl: |
2285 | rtnl_unlock(); | |
2286 | ||
93da9cc1 | 2287 | return err; |
2288 | } | |
2289 | ||
2290 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2291 | ||
f130347c LR |
2292 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2293 | { | |
2294 | struct sk_buff *msg; | |
2295 | void *hdr = NULL; | |
2296 | struct nlattr *nl_reg_rules; | |
2297 | unsigned int i; | |
2298 | int err = -EINVAL; | |
2299 | ||
a1794390 | 2300 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2301 | |
2302 | if (!cfg80211_regdomain) | |
2303 | goto out; | |
2304 | ||
2305 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
2306 | if (!msg) { | |
2307 | err = -ENOBUFS; | |
2308 | goto out; | |
2309 | } | |
2310 | ||
2311 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2312 | NL80211_CMD_GET_REG); | |
2313 | if (!hdr) | |
2314 | goto nla_put_failure; | |
2315 | ||
2316 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2317 | cfg80211_regdomain->alpha2); | |
2318 | ||
2319 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2320 | if (!nl_reg_rules) | |
2321 | goto nla_put_failure; | |
2322 | ||
2323 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2324 | struct nlattr *nl_reg_rule; | |
2325 | const struct ieee80211_reg_rule *reg_rule; | |
2326 | const struct ieee80211_freq_range *freq_range; | |
2327 | const struct ieee80211_power_rule *power_rule; | |
2328 | ||
2329 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2330 | freq_range = ®_rule->freq_range; | |
2331 | power_rule = ®_rule->power_rule; | |
2332 | ||
2333 | nl_reg_rule = nla_nest_start(msg, i); | |
2334 | if (!nl_reg_rule) | |
2335 | goto nla_put_failure; | |
2336 | ||
2337 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2338 | reg_rule->flags); | |
2339 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2340 | freq_range->start_freq_khz); | |
2341 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2342 | freq_range->end_freq_khz); | |
2343 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2344 | freq_range->max_bandwidth_khz); | |
2345 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2346 | power_rule->max_antenna_gain); | |
2347 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2348 | power_rule->max_eirp); | |
2349 | ||
2350 | nla_nest_end(msg, nl_reg_rule); | |
2351 | } | |
2352 | ||
2353 | nla_nest_end(msg, nl_reg_rules); | |
2354 | ||
2355 | genlmsg_end(msg, hdr); | |
2356 | err = genlmsg_unicast(msg, info->snd_pid); | |
2357 | goto out; | |
2358 | ||
2359 | nla_put_failure: | |
2360 | genlmsg_cancel(msg, hdr); | |
2361 | err = -EMSGSIZE; | |
2362 | out: | |
a1794390 | 2363 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2364 | return err; |
2365 | } | |
2366 | ||
b2e1b302 LR |
2367 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2368 | { | |
2369 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2370 | struct nlattr *nl_reg_rule; | |
2371 | char *alpha2 = NULL; | |
2372 | int rem_reg_rules = 0, r = 0; | |
2373 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2374 | struct ieee80211_regdomain *rd = NULL; | |
2375 | ||
2376 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2377 | return -EINVAL; | |
2378 | ||
2379 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2380 | return -EINVAL; | |
2381 | ||
2382 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2383 | ||
2384 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2385 | rem_reg_rules) { | |
2386 | num_rules++; | |
2387 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
2388 | goto bad_reg; | |
2389 | } | |
2390 | ||
2391 | if (!reg_is_valid_request(alpha2)) | |
2392 | return -EINVAL; | |
2393 | ||
2394 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2395 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2396 | ||
2397 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
2398 | if (!rd) | |
2399 | return -ENOMEM; | |
2400 | ||
2401 | rd->n_reg_rules = num_rules; | |
2402 | rd->alpha2[0] = alpha2[0]; | |
2403 | rd->alpha2[1] = alpha2[1]; | |
2404 | ||
2405 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2406 | rem_reg_rules) { | |
2407 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2408 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2409 | reg_rule_policy); | |
2410 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2411 | if (r) | |
2412 | goto bad_reg; | |
2413 | ||
2414 | rule_idx++; | |
2415 | ||
2416 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) | |
2417 | goto bad_reg; | |
2418 | } | |
2419 | ||
2420 | BUG_ON(rule_idx != num_rules); | |
2421 | ||
a1794390 | 2422 | mutex_lock(&cfg80211_mutex); |
b2e1b302 | 2423 | r = set_regdom(rd); |
a1794390 | 2424 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 LR |
2425 | return r; |
2426 | ||
d2372b31 | 2427 | bad_reg: |
b2e1b302 LR |
2428 | kfree(rd); |
2429 | return -EINVAL; | |
2430 | } | |
2431 | ||
2a519311 JB |
2432 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2433 | { | |
2434 | struct cfg80211_registered_device *drv; | |
2435 | struct net_device *dev; | |
2436 | struct cfg80211_scan_request *request; | |
2437 | struct cfg80211_ssid *ssid; | |
2438 | struct ieee80211_channel *channel; | |
2439 | struct nlattr *attr; | |
2440 | struct wiphy *wiphy; | |
2441 | int err, tmp, n_ssids = 0, n_channels = 0, i; | |
2442 | enum ieee80211_band band; | |
70692ad2 | 2443 | size_t ie_len; |
2a519311 | 2444 | |
3b85875a JB |
2445 | rtnl_lock(); |
2446 | ||
2a519311 JB |
2447 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2448 | if (err) | |
3b85875a | 2449 | goto out_rtnl; |
2a519311 JB |
2450 | |
2451 | wiphy = &drv->wiphy; | |
2452 | ||
2453 | if (!drv->ops->scan) { | |
2454 | err = -EOPNOTSUPP; | |
2455 | goto out; | |
2456 | } | |
2457 | ||
35a8efe1 JM |
2458 | if (!netif_running(dev)) { |
2459 | err = -ENETDOWN; | |
2460 | goto out; | |
2461 | } | |
2462 | ||
2a519311 JB |
2463 | if (drv->scan_req) { |
2464 | err = -EBUSY; | |
3b85875a | 2465 | goto out; |
2a519311 JB |
2466 | } |
2467 | ||
2468 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
2469 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) | |
2470 | n_channels++; | |
2471 | if (!n_channels) { | |
2472 | err = -EINVAL; | |
3b85875a | 2473 | goto out; |
2a519311 JB |
2474 | } |
2475 | } else { | |
2476 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
2477 | if (wiphy->bands[band]) | |
2478 | n_channels += wiphy->bands[band]->n_channels; | |
2479 | } | |
2480 | ||
2481 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2482 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2483 | n_ssids++; | |
2484 | ||
2485 | if (n_ssids > wiphy->max_scan_ssids) { | |
2486 | err = -EINVAL; | |
3b85875a | 2487 | goto out; |
2a519311 JB |
2488 | } |
2489 | ||
70692ad2 JM |
2490 | if (info->attrs[NL80211_ATTR_IE]) |
2491 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2492 | else | |
2493 | ie_len = 0; | |
2494 | ||
2a519311 JB |
2495 | request = kzalloc(sizeof(*request) |
2496 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
2497 | + sizeof(channel) * n_channels |
2498 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
2499 | if (!request) { |
2500 | err = -ENOMEM; | |
3b85875a | 2501 | goto out; |
2a519311 JB |
2502 | } |
2503 | ||
2504 | request->channels = (void *)((char *)request + sizeof(*request)); | |
2505 | request->n_channels = n_channels; | |
2506 | if (n_ssids) | |
2507 | request->ssids = (void *)(request->channels + n_channels); | |
2508 | request->n_ssids = n_ssids; | |
70692ad2 JM |
2509 | if (ie_len) { |
2510 | if (request->ssids) | |
2511 | request->ie = (void *)(request->ssids + n_ssids); | |
2512 | else | |
2513 | request->ie = (void *)(request->channels + n_channels); | |
2514 | } | |
2a519311 JB |
2515 | |
2516 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
2517 | /* user specified, bail out if channel not found */ | |
2518 | request->n_channels = n_channels; | |
2519 | i = 0; | |
2520 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { | |
2521 | request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
2522 | if (!request->channels[i]) { | |
2523 | err = -EINVAL; | |
2524 | goto out_free; | |
2525 | } | |
2526 | i++; | |
2527 | } | |
2528 | } else { | |
2529 | /* all channels */ | |
2530 | i = 0; | |
2531 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
2532 | int j; | |
2533 | if (!wiphy->bands[band]) | |
2534 | continue; | |
2535 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
2536 | request->channels[i] = &wiphy->bands[band]->channels[j]; | |
2537 | i++; | |
2538 | } | |
2539 | } | |
2540 | } | |
2541 | ||
2542 | i = 0; | |
2543 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
2544 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
2545 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
2546 | err = -EINVAL; | |
2547 | goto out_free; | |
2548 | } | |
2549 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
2550 | request->ssids[i].ssid_len = nla_len(attr); | |
2551 | i++; | |
2552 | } | |
2553 | } | |
2554 | ||
70692ad2 JM |
2555 | if (info->attrs[NL80211_ATTR_IE]) { |
2556 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2557 | memcpy(request->ie, nla_data(info->attrs[NL80211_ATTR_IE]), | |
2558 | request->ie_len); | |
2559 | } | |
2560 | ||
2a519311 JB |
2561 | request->ifidx = dev->ifindex; |
2562 | request->wiphy = &drv->wiphy; | |
2563 | ||
2564 | drv->scan_req = request; | |
2565 | err = drv->ops->scan(&drv->wiphy, dev, request); | |
2566 | ||
2567 | out_free: | |
2568 | if (err) { | |
2569 | drv->scan_req = NULL; | |
2570 | kfree(request); | |
2571 | } | |
2a519311 JB |
2572 | out: |
2573 | cfg80211_put_dev(drv); | |
2574 | dev_put(dev); | |
3b85875a JB |
2575 | out_rtnl: |
2576 | rtnl_unlock(); | |
2577 | ||
2a519311 JB |
2578 | return err; |
2579 | } | |
2580 | ||
2581 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
2582 | struct cfg80211_registered_device *rdev, | |
2583 | struct net_device *dev, | |
2584 | struct cfg80211_bss *res) | |
2585 | { | |
2586 | void *hdr; | |
2587 | struct nlattr *bss; | |
2588 | ||
2589 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
2590 | NL80211_CMD_NEW_SCAN_RESULTS); | |
2591 | if (!hdr) | |
2592 | return -1; | |
2593 | ||
2594 | NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION, | |
2595 | rdev->bss_generation); | |
2596 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2597 | ||
2598 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
2599 | if (!bss) | |
2600 | goto nla_put_failure; | |
2601 | if (!is_zero_ether_addr(res->bssid)) | |
2602 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
2603 | if (res->information_elements && res->len_information_elements) | |
2604 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
2605 | res->len_information_elements, | |
2606 | res->information_elements); | |
2607 | if (res->tsf) | |
2608 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
2609 | if (res->beacon_interval) | |
2610 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
2611 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
2612 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
2613 | ||
77965c97 | 2614 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
2615 | case CFG80211_SIGNAL_TYPE_MBM: |
2616 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
2617 | break; | |
2618 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
2619 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
2620 | break; | |
2621 | default: | |
2622 | break; | |
2623 | } | |
2624 | ||
2625 | nla_nest_end(msg, bss); | |
2626 | ||
2627 | return genlmsg_end(msg, hdr); | |
2628 | ||
2629 | nla_put_failure: | |
2630 | genlmsg_cancel(msg, hdr); | |
2631 | return -EMSGSIZE; | |
2632 | } | |
2633 | ||
2634 | static int nl80211_dump_scan(struct sk_buff *skb, | |
2635 | struct netlink_callback *cb) | |
2636 | { | |
2637 | struct cfg80211_registered_device *dev; | |
2638 | struct net_device *netdev; | |
2639 | struct cfg80211_internal_bss *scan; | |
2640 | int ifidx = cb->args[0]; | |
2641 | int start = cb->args[1], idx = 0; | |
2642 | int err; | |
2643 | ||
2644 | if (!ifidx) { | |
2645 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
2646 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
2647 | nl80211_policy); | |
2648 | if (err) | |
2649 | return err; | |
2650 | ||
2651 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
2652 | return -EINVAL; | |
2653 | ||
2654 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
2655 | if (!ifidx) | |
2656 | return -EINVAL; | |
2657 | cb->args[0] = ifidx; | |
2658 | } | |
2659 | ||
2660 | netdev = dev_get_by_index(&init_net, ifidx); | |
2661 | if (!netdev) | |
2662 | return -ENODEV; | |
2663 | ||
2664 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
2665 | if (IS_ERR(dev)) { | |
2666 | err = PTR_ERR(dev); | |
2667 | goto out_put_netdev; | |
2668 | } | |
2669 | ||
2670 | spin_lock_bh(&dev->bss_lock); | |
2671 | cfg80211_bss_expire(dev); | |
2672 | ||
2673 | list_for_each_entry(scan, &dev->bss_list, list) { | |
2674 | if (++idx <= start) | |
2675 | continue; | |
2676 | if (nl80211_send_bss(skb, | |
2677 | NETLINK_CB(cb->skb).pid, | |
2678 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2679 | dev, netdev, &scan->pub) < 0) { | |
2680 | idx--; | |
2681 | goto out; | |
2682 | } | |
2683 | } | |
2684 | ||
2685 | out: | |
2686 | spin_unlock_bh(&dev->bss_lock); | |
2687 | ||
2688 | cb->args[1] = idx; | |
2689 | err = skb->len; | |
2690 | cfg80211_put_dev(dev); | |
2691 | out_put_netdev: | |
2692 | dev_put(netdev); | |
2693 | ||
2694 | return err; | |
2695 | } | |
2696 | ||
255e737e JM |
2697 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
2698 | { | |
2699 | return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM || | |
2700 | auth_type == NL80211_AUTHTYPE_SHARED_KEY || | |
2701 | auth_type == NL80211_AUTHTYPE_FT || | |
2702 | auth_type == NL80211_AUTHTYPE_NETWORK_EAP; | |
2703 | } | |
2704 | ||
636a5d36 JM |
2705 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
2706 | { | |
2707 | struct cfg80211_registered_device *drv; | |
2708 | struct net_device *dev; | |
2709 | struct cfg80211_auth_request req; | |
2710 | struct wiphy *wiphy; | |
2711 | int err; | |
2712 | ||
2713 | rtnl_lock(); | |
2714 | ||
2715 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2716 | if (err) | |
2717 | goto unlock_rtnl; | |
2718 | ||
2719 | if (!drv->ops->auth) { | |
2720 | err = -EOPNOTSUPP; | |
2721 | goto out; | |
2722 | } | |
2723 | ||
eec60b03 JM |
2724 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2725 | err = -EOPNOTSUPP; | |
2726 | goto out; | |
2727 | } | |
2728 | ||
35a8efe1 JM |
2729 | if (!netif_running(dev)) { |
2730 | err = -ENETDOWN; | |
2731 | goto out; | |
2732 | } | |
2733 | ||
636a5d36 JM |
2734 | if (!info->attrs[NL80211_ATTR_MAC]) { |
2735 | err = -EINVAL; | |
2736 | goto out; | |
2737 | } | |
2738 | ||
2739 | wiphy = &drv->wiphy; | |
2740 | memset(&req, 0, sizeof(req)); | |
2741 | ||
2742 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2743 | ||
2744 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2745 | req.chan = ieee80211_get_channel( | |
2746 | wiphy, | |
2747 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
2748 | if (!req.chan) { | |
2749 | err = -EINVAL; | |
2750 | goto out; | |
2751 | } | |
2752 | } | |
2753 | ||
2754 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2755 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2756 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2757 | } | |
2758 | ||
2759 | if (info->attrs[NL80211_ATTR_IE]) { | |
2760 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2761 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2762 | } | |
2763 | ||
2764 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
2765 | req.auth_type = | |
2766 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
255e737e JM |
2767 | if (!nl80211_valid_auth_type(req.auth_type)) { |
2768 | err = -EINVAL; | |
2769 | goto out; | |
2770 | } | |
636a5d36 JM |
2771 | } |
2772 | ||
2773 | err = drv->ops->auth(&drv->wiphy, dev, &req); | |
2774 | ||
2775 | out: | |
2776 | cfg80211_put_dev(drv); | |
2777 | dev_put(dev); | |
2778 | unlock_rtnl: | |
2779 | rtnl_unlock(); | |
2780 | return err; | |
2781 | } | |
2782 | ||
2783 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) | |
2784 | { | |
2785 | struct cfg80211_registered_device *drv; | |
2786 | struct net_device *dev; | |
2787 | struct cfg80211_assoc_request req; | |
2788 | struct wiphy *wiphy; | |
2789 | int err; | |
2790 | ||
2791 | rtnl_lock(); | |
2792 | ||
2793 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2794 | if (err) | |
2795 | goto unlock_rtnl; | |
2796 | ||
2797 | if (!drv->ops->assoc) { | |
2798 | err = -EOPNOTSUPP; | |
2799 | goto out; | |
2800 | } | |
2801 | ||
eec60b03 JM |
2802 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2803 | err = -EOPNOTSUPP; | |
2804 | goto out; | |
2805 | } | |
2806 | ||
35a8efe1 JM |
2807 | if (!netif_running(dev)) { |
2808 | err = -ENETDOWN; | |
2809 | goto out; | |
2810 | } | |
2811 | ||
636a5d36 JM |
2812 | if (!info->attrs[NL80211_ATTR_MAC] || |
2813 | !info->attrs[NL80211_ATTR_SSID]) { | |
2814 | err = -EINVAL; | |
2815 | goto out; | |
2816 | } | |
2817 | ||
2818 | wiphy = &drv->wiphy; | |
2819 | memset(&req, 0, sizeof(req)); | |
2820 | ||
2821 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2822 | ||
2823 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2824 | req.chan = ieee80211_get_channel( | |
2825 | wiphy, | |
2826 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
2827 | if (!req.chan) { | |
2828 | err = -EINVAL; | |
2829 | goto out; | |
2830 | } | |
2831 | } | |
2832 | ||
636a5d36 JM |
2833 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
2834 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2835 | ||
2836 | if (info->attrs[NL80211_ATTR_IE]) { | |
2837 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2838 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2839 | } | |
2840 | ||
2841 | err = drv->ops->assoc(&drv->wiphy, dev, &req); | |
2842 | ||
2843 | out: | |
2844 | cfg80211_put_dev(drv); | |
2845 | dev_put(dev); | |
2846 | unlock_rtnl: | |
2847 | rtnl_unlock(); | |
2848 | return err; | |
2849 | } | |
2850 | ||
2851 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
2852 | { | |
2853 | struct cfg80211_registered_device *drv; | |
2854 | struct net_device *dev; | |
2855 | struct cfg80211_deauth_request req; | |
2856 | struct wiphy *wiphy; | |
2857 | int err; | |
2858 | ||
2859 | rtnl_lock(); | |
2860 | ||
2861 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2862 | if (err) | |
2863 | goto unlock_rtnl; | |
2864 | ||
2865 | if (!drv->ops->deauth) { | |
2866 | err = -EOPNOTSUPP; | |
2867 | goto out; | |
2868 | } | |
2869 | ||
eec60b03 JM |
2870 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2871 | err = -EOPNOTSUPP; | |
2872 | goto out; | |
2873 | } | |
2874 | ||
35a8efe1 JM |
2875 | if (!netif_running(dev)) { |
2876 | err = -ENETDOWN; | |
2877 | goto out; | |
2878 | } | |
2879 | ||
636a5d36 JM |
2880 | if (!info->attrs[NL80211_ATTR_MAC]) { |
2881 | err = -EINVAL; | |
2882 | goto out; | |
2883 | } | |
2884 | ||
2885 | wiphy = &drv->wiphy; | |
2886 | memset(&req, 0, sizeof(req)); | |
2887 | ||
2888 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2889 | ||
255e737e | 2890 | if (info->attrs[NL80211_ATTR_REASON_CODE]) { |
636a5d36 JM |
2891 | req.reason_code = |
2892 | nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
255e737e JM |
2893 | if (req.reason_code == 0) { |
2894 | /* Reason Code 0 is reserved */ | |
2895 | err = -EINVAL; | |
2896 | goto out; | |
2897 | } | |
2898 | } | |
636a5d36 JM |
2899 | |
2900 | if (info->attrs[NL80211_ATTR_IE]) { | |
2901 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2902 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2903 | } | |
2904 | ||
2905 | err = drv->ops->deauth(&drv->wiphy, dev, &req); | |
2906 | ||
2907 | out: | |
2908 | cfg80211_put_dev(drv); | |
2909 | dev_put(dev); | |
2910 | unlock_rtnl: | |
2911 | rtnl_unlock(); | |
2912 | return err; | |
2913 | } | |
2914 | ||
2915 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
2916 | { | |
2917 | struct cfg80211_registered_device *drv; | |
2918 | struct net_device *dev; | |
2919 | struct cfg80211_disassoc_request req; | |
2920 | struct wiphy *wiphy; | |
2921 | int err; | |
2922 | ||
2923 | rtnl_lock(); | |
2924 | ||
2925 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2926 | if (err) | |
2927 | goto unlock_rtnl; | |
2928 | ||
2929 | if (!drv->ops->disassoc) { | |
2930 | err = -EOPNOTSUPP; | |
2931 | goto out; | |
2932 | } | |
2933 | ||
eec60b03 JM |
2934 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2935 | err = -EOPNOTSUPP; | |
2936 | goto out; | |
2937 | } | |
2938 | ||
35a8efe1 JM |
2939 | if (!netif_running(dev)) { |
2940 | err = -ENETDOWN; | |
2941 | goto out; | |
2942 | } | |
2943 | ||
636a5d36 JM |
2944 | if (!info->attrs[NL80211_ATTR_MAC]) { |
2945 | err = -EINVAL; | |
2946 | goto out; | |
2947 | } | |
2948 | ||
2949 | wiphy = &drv->wiphy; | |
2950 | memset(&req, 0, sizeof(req)); | |
2951 | ||
2952 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2953 | ||
255e737e | 2954 | if (info->attrs[NL80211_ATTR_REASON_CODE]) { |
636a5d36 JM |
2955 | req.reason_code = |
2956 | nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
255e737e JM |
2957 | if (req.reason_code == 0) { |
2958 | /* Reason Code 0 is reserved */ | |
2959 | err = -EINVAL; | |
2960 | goto out; | |
2961 | } | |
2962 | } | |
636a5d36 JM |
2963 | |
2964 | if (info->attrs[NL80211_ATTR_IE]) { | |
2965 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2966 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2967 | } | |
2968 | ||
2969 | err = drv->ops->disassoc(&drv->wiphy, dev, &req); | |
2970 | ||
2971 | out: | |
2972 | cfg80211_put_dev(drv); | |
2973 | dev_put(dev); | |
2974 | unlock_rtnl: | |
2975 | rtnl_unlock(); | |
2976 | return err; | |
2977 | } | |
2978 | ||
55682965 JB |
2979 | static struct genl_ops nl80211_ops[] = { |
2980 | { | |
2981 | .cmd = NL80211_CMD_GET_WIPHY, | |
2982 | .doit = nl80211_get_wiphy, | |
2983 | .dumpit = nl80211_dump_wiphy, | |
2984 | .policy = nl80211_policy, | |
2985 | /* can be retrieved by unprivileged users */ | |
2986 | }, | |
2987 | { | |
2988 | .cmd = NL80211_CMD_SET_WIPHY, | |
2989 | .doit = nl80211_set_wiphy, | |
2990 | .policy = nl80211_policy, | |
2991 | .flags = GENL_ADMIN_PERM, | |
2992 | }, | |
2993 | { | |
2994 | .cmd = NL80211_CMD_GET_INTERFACE, | |
2995 | .doit = nl80211_get_interface, | |
2996 | .dumpit = nl80211_dump_interface, | |
2997 | .policy = nl80211_policy, | |
2998 | /* can be retrieved by unprivileged users */ | |
2999 | }, | |
3000 | { | |
3001 | .cmd = NL80211_CMD_SET_INTERFACE, | |
3002 | .doit = nl80211_set_interface, | |
3003 | .policy = nl80211_policy, | |
3004 | .flags = GENL_ADMIN_PERM, | |
3005 | }, | |
3006 | { | |
3007 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
3008 | .doit = nl80211_new_interface, | |
3009 | .policy = nl80211_policy, | |
3010 | .flags = GENL_ADMIN_PERM, | |
3011 | }, | |
3012 | { | |
3013 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
3014 | .doit = nl80211_del_interface, | |
3015 | .policy = nl80211_policy, | |
41ade00f JB |
3016 | .flags = GENL_ADMIN_PERM, |
3017 | }, | |
3018 | { | |
3019 | .cmd = NL80211_CMD_GET_KEY, | |
3020 | .doit = nl80211_get_key, | |
3021 | .policy = nl80211_policy, | |
3022 | .flags = GENL_ADMIN_PERM, | |
3023 | }, | |
3024 | { | |
3025 | .cmd = NL80211_CMD_SET_KEY, | |
3026 | .doit = nl80211_set_key, | |
3027 | .policy = nl80211_policy, | |
3028 | .flags = GENL_ADMIN_PERM, | |
3029 | }, | |
3030 | { | |
3031 | .cmd = NL80211_CMD_NEW_KEY, | |
3032 | .doit = nl80211_new_key, | |
3033 | .policy = nl80211_policy, | |
3034 | .flags = GENL_ADMIN_PERM, | |
3035 | }, | |
3036 | { | |
3037 | .cmd = NL80211_CMD_DEL_KEY, | |
3038 | .doit = nl80211_del_key, | |
3039 | .policy = nl80211_policy, | |
55682965 JB |
3040 | .flags = GENL_ADMIN_PERM, |
3041 | }, | |
ed1b6cc7 JB |
3042 | { |
3043 | .cmd = NL80211_CMD_SET_BEACON, | |
3044 | .policy = nl80211_policy, | |
3045 | .flags = GENL_ADMIN_PERM, | |
3046 | .doit = nl80211_addset_beacon, | |
3047 | }, | |
3048 | { | |
3049 | .cmd = NL80211_CMD_NEW_BEACON, | |
3050 | .policy = nl80211_policy, | |
3051 | .flags = GENL_ADMIN_PERM, | |
3052 | .doit = nl80211_addset_beacon, | |
3053 | }, | |
3054 | { | |
3055 | .cmd = NL80211_CMD_DEL_BEACON, | |
3056 | .policy = nl80211_policy, | |
3057 | .flags = GENL_ADMIN_PERM, | |
3058 | .doit = nl80211_del_beacon, | |
3059 | }, | |
5727ef1b JB |
3060 | { |
3061 | .cmd = NL80211_CMD_GET_STATION, | |
3062 | .doit = nl80211_get_station, | |
2ec600d6 | 3063 | .dumpit = nl80211_dump_station, |
5727ef1b | 3064 | .policy = nl80211_policy, |
5727ef1b JB |
3065 | }, |
3066 | { | |
3067 | .cmd = NL80211_CMD_SET_STATION, | |
3068 | .doit = nl80211_set_station, | |
3069 | .policy = nl80211_policy, | |
3070 | .flags = GENL_ADMIN_PERM, | |
3071 | }, | |
3072 | { | |
3073 | .cmd = NL80211_CMD_NEW_STATION, | |
3074 | .doit = nl80211_new_station, | |
3075 | .policy = nl80211_policy, | |
3076 | .flags = GENL_ADMIN_PERM, | |
3077 | }, | |
3078 | { | |
3079 | .cmd = NL80211_CMD_DEL_STATION, | |
3080 | .doit = nl80211_del_station, | |
3081 | .policy = nl80211_policy, | |
2ec600d6 LCC |
3082 | .flags = GENL_ADMIN_PERM, |
3083 | }, | |
3084 | { | |
3085 | .cmd = NL80211_CMD_GET_MPATH, | |
3086 | .doit = nl80211_get_mpath, | |
3087 | .dumpit = nl80211_dump_mpath, | |
3088 | .policy = nl80211_policy, | |
3089 | .flags = GENL_ADMIN_PERM, | |
3090 | }, | |
3091 | { | |
3092 | .cmd = NL80211_CMD_SET_MPATH, | |
3093 | .doit = nl80211_set_mpath, | |
3094 | .policy = nl80211_policy, | |
3095 | .flags = GENL_ADMIN_PERM, | |
3096 | }, | |
3097 | { | |
3098 | .cmd = NL80211_CMD_NEW_MPATH, | |
3099 | .doit = nl80211_new_mpath, | |
3100 | .policy = nl80211_policy, | |
3101 | .flags = GENL_ADMIN_PERM, | |
3102 | }, | |
3103 | { | |
3104 | .cmd = NL80211_CMD_DEL_MPATH, | |
3105 | .doit = nl80211_del_mpath, | |
3106 | .policy = nl80211_policy, | |
9f1ba906 JM |
3107 | .flags = GENL_ADMIN_PERM, |
3108 | }, | |
3109 | { | |
3110 | .cmd = NL80211_CMD_SET_BSS, | |
3111 | .doit = nl80211_set_bss, | |
3112 | .policy = nl80211_policy, | |
b2e1b302 LR |
3113 | .flags = GENL_ADMIN_PERM, |
3114 | }, | |
f130347c LR |
3115 | { |
3116 | .cmd = NL80211_CMD_GET_REG, | |
3117 | .doit = nl80211_get_reg, | |
3118 | .policy = nl80211_policy, | |
3119 | /* can be retrieved by unprivileged users */ | |
3120 | }, | |
b2e1b302 LR |
3121 | { |
3122 | .cmd = NL80211_CMD_SET_REG, | |
3123 | .doit = nl80211_set_reg, | |
3124 | .policy = nl80211_policy, | |
3125 | .flags = GENL_ADMIN_PERM, | |
3126 | }, | |
3127 | { | |
3128 | .cmd = NL80211_CMD_REQ_SET_REG, | |
3129 | .doit = nl80211_req_set_reg, | |
3130 | .policy = nl80211_policy, | |
93da9cc1 | 3131 | .flags = GENL_ADMIN_PERM, |
3132 | }, | |
3133 | { | |
3134 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
3135 | .doit = nl80211_get_mesh_params, | |
3136 | .policy = nl80211_policy, | |
3137 | /* can be retrieved by unprivileged users */ | |
3138 | }, | |
3139 | { | |
3140 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
3141 | .doit = nl80211_set_mesh_params, | |
3142 | .policy = nl80211_policy, | |
9aed3cc1 JM |
3143 | .flags = GENL_ADMIN_PERM, |
3144 | }, | |
2a519311 JB |
3145 | { |
3146 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
3147 | .doit = nl80211_trigger_scan, | |
3148 | .policy = nl80211_policy, | |
3149 | .flags = GENL_ADMIN_PERM, | |
3150 | }, | |
3151 | { | |
3152 | .cmd = NL80211_CMD_GET_SCAN, | |
3153 | .policy = nl80211_policy, | |
3154 | .dumpit = nl80211_dump_scan, | |
3155 | }, | |
636a5d36 JM |
3156 | { |
3157 | .cmd = NL80211_CMD_AUTHENTICATE, | |
3158 | .doit = nl80211_authenticate, | |
3159 | .policy = nl80211_policy, | |
3160 | .flags = GENL_ADMIN_PERM, | |
3161 | }, | |
3162 | { | |
3163 | .cmd = NL80211_CMD_ASSOCIATE, | |
3164 | .doit = nl80211_associate, | |
3165 | .policy = nl80211_policy, | |
3166 | .flags = GENL_ADMIN_PERM, | |
3167 | }, | |
3168 | { | |
3169 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
3170 | .doit = nl80211_deauthenticate, | |
3171 | .policy = nl80211_policy, | |
3172 | .flags = GENL_ADMIN_PERM, | |
3173 | }, | |
3174 | { | |
3175 | .cmd = NL80211_CMD_DISASSOCIATE, | |
3176 | .doit = nl80211_disassociate, | |
3177 | .policy = nl80211_policy, | |
3178 | .flags = GENL_ADMIN_PERM, | |
3179 | }, | |
55682965 | 3180 | }; |
6039f6d2 JM |
3181 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
3182 | .name = "mlme", | |
3183 | }; | |
55682965 JB |
3184 | |
3185 | /* multicast groups */ | |
3186 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
3187 | .name = "config", | |
3188 | }; | |
2a519311 JB |
3189 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
3190 | .name = "scan", | |
3191 | }; | |
73d54c9e LR |
3192 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
3193 | .name = "regulatory", | |
3194 | }; | |
55682965 JB |
3195 | |
3196 | /* notification functions */ | |
3197 | ||
3198 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
3199 | { | |
3200 | struct sk_buff *msg; | |
3201 | ||
3202 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3203 | if (!msg) | |
3204 | return; | |
3205 | ||
3206 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
3207 | nlmsg_free(msg); | |
3208 | return; | |
3209 | } | |
3210 | ||
3211 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
3212 | } | |
3213 | ||
2a519311 JB |
3214 | static int nl80211_send_scan_donemsg(struct sk_buff *msg, |
3215 | struct cfg80211_registered_device *rdev, | |
3216 | struct net_device *netdev, | |
3217 | u32 pid, u32 seq, int flags, | |
3218 | u32 cmd) | |
3219 | { | |
3220 | void *hdr; | |
3221 | ||
3222 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
3223 | if (!hdr) | |
3224 | return -1; | |
3225 | ||
b5850a7a | 3226 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
3227 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
3228 | ||
3229 | /* XXX: we should probably bounce back the request? */ | |
3230 | ||
3231 | return genlmsg_end(msg, hdr); | |
3232 | ||
3233 | nla_put_failure: | |
3234 | genlmsg_cancel(msg, hdr); | |
3235 | return -EMSGSIZE; | |
3236 | } | |
3237 | ||
3238 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, | |
3239 | struct net_device *netdev) | |
3240 | { | |
3241 | struct sk_buff *msg; | |
3242 | ||
3243 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3244 | if (!msg) | |
3245 | return; | |
3246 | ||
3247 | if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0, | |
3248 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
3249 | nlmsg_free(msg); | |
3250 | return; | |
3251 | } | |
3252 | ||
3253 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3254 | } | |
3255 | ||
3256 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
3257 | struct net_device *netdev) | |
3258 | { | |
3259 | struct sk_buff *msg; | |
3260 | ||
3261 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3262 | if (!msg) | |
3263 | return; | |
3264 | ||
3265 | if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0, | |
3266 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
3267 | nlmsg_free(msg); | |
3268 | return; | |
3269 | } | |
3270 | ||
3271 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3272 | } | |
3273 | ||
73d54c9e LR |
3274 | /* |
3275 | * This can happen on global regulatory changes or device specific settings | |
3276 | * based on custom world regulatory domains. | |
3277 | */ | |
3278 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
3279 | { | |
3280 | struct sk_buff *msg; | |
3281 | void *hdr; | |
3282 | ||
3283 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3284 | if (!msg) | |
3285 | return; | |
3286 | ||
3287 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
3288 | if (!hdr) { | |
3289 | nlmsg_free(msg); | |
3290 | return; | |
3291 | } | |
3292 | ||
3293 | /* Userspace can always count this one always being set */ | |
3294 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
3295 | ||
3296 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
3297 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3298 | NL80211_REGDOM_TYPE_WORLD); | |
3299 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
3300 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3301 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
3302 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
3303 | request->intersect) | |
3304 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3305 | NL80211_REGDOM_TYPE_INTERSECTION); | |
3306 | else { | |
3307 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3308 | NL80211_REGDOM_TYPE_COUNTRY); | |
3309 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
3310 | } | |
3311 | ||
3312 | if (wiphy_idx_valid(request->wiphy_idx)) | |
3313 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
3314 | ||
3315 | if (genlmsg_end(msg, hdr) < 0) { | |
3316 | nlmsg_free(msg); | |
3317 | return; | |
3318 | } | |
3319 | ||
3320 | genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL); | |
3321 | ||
3322 | return; | |
3323 | ||
3324 | nla_put_failure: | |
3325 | genlmsg_cancel(msg, hdr); | |
3326 | nlmsg_free(msg); | |
3327 | } | |
3328 | ||
6039f6d2 JM |
3329 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
3330 | struct net_device *netdev, | |
3331 | const u8 *buf, size_t len, | |
3332 | enum nl80211_commands cmd) | |
3333 | { | |
3334 | struct sk_buff *msg; | |
3335 | void *hdr; | |
3336 | ||
3337 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3338 | if (!msg) | |
3339 | return; | |
3340 | ||
3341 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
3342 | if (!hdr) { | |
3343 | nlmsg_free(msg); | |
3344 | return; | |
3345 | } | |
3346 | ||
3347 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3348 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
3349 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
3350 | ||
3351 | if (genlmsg_end(msg, hdr) < 0) { | |
3352 | nlmsg_free(msg); | |
3353 | return; | |
3354 | } | |
3355 | ||
3356 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
3357 | return; | |
3358 | ||
3359 | nla_put_failure: | |
3360 | genlmsg_cancel(msg, hdr); | |
3361 | nlmsg_free(msg); | |
3362 | } | |
3363 | ||
3364 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
3365 | struct net_device *netdev, const u8 *buf, size_t len) | |
3366 | { | |
3367 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3368 | NL80211_CMD_AUTHENTICATE); | |
3369 | } | |
3370 | ||
3371 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
3372 | struct net_device *netdev, const u8 *buf, | |
3373 | size_t len) | |
3374 | { | |
3375 | nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE); | |
3376 | } | |
3377 | ||
3378 | void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev, | |
3379 | struct net_device *netdev, const u8 *buf, | |
3380 | size_t len) | |
3381 | { | |
3382 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3383 | NL80211_CMD_DEAUTHENTICATE); | |
3384 | } | |
3385 | ||
3386 | void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev, | |
3387 | struct net_device *netdev, const u8 *buf, | |
3388 | size_t len) | |
3389 | { | |
3390 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3391 | NL80211_CMD_DISASSOCIATE); | |
3392 | } | |
3393 | ||
55682965 JB |
3394 | /* initialisation/exit functions */ |
3395 | ||
3396 | int nl80211_init(void) | |
3397 | { | |
3398 | int err, i; | |
3399 | ||
3400 | err = genl_register_family(&nl80211_fam); | |
3401 | if (err) | |
3402 | return err; | |
3403 | ||
3404 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
3405 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
3406 | if (err) | |
3407 | goto err_out; | |
3408 | } | |
3409 | ||
3410 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
3411 | if (err) | |
3412 | goto err_out; | |
3413 | ||
2a519311 JB |
3414 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
3415 | if (err) | |
3416 | goto err_out; | |
3417 | ||
73d54c9e LR |
3418 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
3419 | if (err) | |
3420 | goto err_out; | |
3421 | ||
6039f6d2 JM |
3422 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
3423 | if (err) | |
3424 | goto err_out; | |
3425 | ||
55682965 JB |
3426 | return 0; |
3427 | err_out: | |
3428 | genl_unregister_family(&nl80211_fam); | |
3429 | return err; | |
3430 | } | |
3431 | ||
3432 | void nl80211_exit(void) | |
3433 | { | |
3434 | genl_unregister_family(&nl80211_fam); | |
3435 | } |