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Commit | Line | Data |
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3f5285e8 | 1 | /* |
c5121837 | 2 | * Driver interaction with Linux nl80211/cfg80211 |
8d923a4a | 3 | * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi> |
072ad14c JM |
4 | * Copyright (c) 2003-2004, Instant802 Networks, Inc. |
5 | * Copyright (c) 2005-2006, Devicescape Software, Inc. | |
6 | * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> | |
58f6fbe0 | 7 | * Copyright (c) 2009-2010, Atheros Communications |
3f5285e8 JM |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * Alternatively, this software may be distributed under the terms of BSD | |
14 | * license. | |
15 | * | |
16 | * See README and COPYING for more details. | |
17 | */ | |
18 | ||
19 | #include "includes.h" | |
20 | #include <sys/ioctl.h> | |
37b7d082 | 21 | #include <net/if.h> |
3f5285e8 JM |
22 | #include <netlink/genl/genl.h> |
23 | #include <netlink/genl/family.h> | |
24 | #include <netlink/genl/ctrl.h> | |
8602b0f2 | 25 | #include <linux/rtnetlink.h> |
1b648c7e JM |
26 | #include <netpacket/packet.h> |
27 | #include <linux/filter.h> | |
7e45830a | 28 | #include "nl80211_copy.h" |
625f587b | 29 | |
3f5285e8 | 30 | #include "common.h" |
1b648c7e JM |
31 | #include "eloop.h" |
32 | #include "common/ieee802_11_defs.h" | |
e2d02c29 | 33 | #include "netlink.h" |
34f2f814 | 34 | #include "linux_ioctl.h" |
e2d02c29 JM |
35 | #include "radiotap.h" |
36 | #include "radiotap_iter.h" | |
8401a6b0 | 37 | #include "rfkill.h" |
1b648c7e | 38 | #include "driver.h" |
0915d02c | 39 | |
c5121837 JM |
40 | #ifdef CONFIG_LIBNL20 |
41 | /* libnl 2.0 compatibility code */ | |
2e8eac2d | 42 | #define nl_handle nl_sock |
a65a9aed JB |
43 | #define nl80211_handle_alloc nl_socket_alloc_cb |
44 | #define nl80211_handle_destroy nl_socket_free | |
45 | #else | |
46 | /* | |
47 | * libnl 1.1 has a bug, it tries to allocate socket numbers densely | |
48 | * but when you free a socket again it will mess up its bitmap and | |
49 | * and use the wrong number the next time it needs a socket ID. | |
50 | * Therefore, we wrap the handle alloc/destroy and add our own pid | |
51 | * accounting. | |
52 | */ | |
53 | static uint32_t port_bitmap[32] = { 0 }; | |
54 | ||
55 | static struct nl_handle *nl80211_handle_alloc(void *cb) | |
56 | { | |
57 | struct nl_handle *handle; | |
58 | uint32_t pid = getpid() & 0x3FFFFF; | |
59 | int i; | |
60 | ||
61 | handle = nl_handle_alloc_cb(cb); | |
62 | ||
63 | for (i = 0; i < 1024; i++) { | |
64 | if (port_bitmap[i / 32] & (1 << (i % 32))) | |
65 | continue; | |
66 | port_bitmap[i / 32] |= 1 << (i % 32); | |
67 | pid += i << 22; | |
68 | break; | |
69 | } | |
70 | ||
71 | nl_socket_set_local_port(handle, pid); | |
72 | ||
73 | return handle; | |
74 | } | |
75 | ||
76 | static void nl80211_handle_destroy(struct nl_handle *handle) | |
77 | { | |
78 | uint32_t port = nl_socket_get_local_port(handle); | |
79 | ||
80 | port >>= 22; | |
81 | port_bitmap[port / 32] &= ~(1 << (port % 32)); | |
82 | ||
83 | nl_handle_destroy(handle); | |
84 | } | |
c5121837 JM |
85 | #endif /* CONFIG_LIBNL20 */ |
86 | ||
c5121837 | 87 | |
3f5285e8 JM |
88 | #ifndef IFF_LOWER_UP |
89 | #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ | |
90 | #endif | |
91 | #ifndef IFF_DORMANT | |
92 | #define IFF_DORMANT 0x20000 /* driver signals dormant */ | |
93 | #endif | |
94 | ||
95 | #ifndef IF_OPER_DORMANT | |
96 | #define IF_OPER_DORMANT 5 | |
97 | #endif | |
98 | #ifndef IF_OPER_UP | |
99 | #define IF_OPER_UP 6 | |
100 | #endif | |
101 | ||
c5121837 | 102 | struct i802_bss { |
a2e40bb6 | 103 | struct wpa_driver_nl80211_data *drv; |
c5121837 | 104 | struct i802_bss *next; |
b4fd6fab | 105 | int ifindex; |
a2e40bb6 | 106 | char ifname[IFNAMSIZ + 1]; |
c5121837 JM |
107 | unsigned int beacon_set:1; |
108 | }; | |
3f5285e8 JM |
109 | |
110 | struct wpa_driver_nl80211_data { | |
111 | void *ctx; | |
08063178 | 112 | struct netlink_data *netlink; |
c5121837 | 113 | int ioctl_sock; /* socket for ioctl() use */ |
94627f6c | 114 | char brname[IFNAMSIZ]; |
3f5285e8 | 115 | int ifindex; |
7524cfb1 | 116 | int if_removed; |
a63063b4 | 117 | int if_disabled; |
8401a6b0 | 118 | struct rfkill_data *rfkill; |
c2a04078 JM |
119 | struct wpa_driver_capa capa; |
120 | int has_capability; | |
c2a04078 | 121 | |
3f5285e8 JM |
122 | int operstate; |
123 | ||
3f5285e8 JM |
124 | int scan_complete_events; |
125 | ||
126 | struct nl_handle *nl_handle; | |
335ce76b | 127 | struct nl_handle *nl_handle_event; |
5582a5d1 | 128 | struct nl_handle *nl_handle_preq; |
3f5285e8 | 129 | struct nl_cache *nl_cache; |
335ce76b | 130 | struct nl_cache *nl_cache_event; |
5582a5d1 | 131 | struct nl_cache *nl_cache_preq; |
3f5285e8 JM |
132 | struct nl_cb *nl_cb; |
133 | struct genl_family *nl80211; | |
1c873584 | 134 | |
e6b8efeb | 135 | u8 auth_bssid[ETH_ALEN]; |
c2a04078 JM |
136 | u8 bssid[ETH_ALEN]; |
137 | int associated; | |
fd05d64e JM |
138 | u8 ssid[32]; |
139 | size_t ssid_len; | |
ad1e68e6 JM |
140 | int nlmode; |
141 | int ap_scan_as_station; | |
4832ecd7 | 142 | unsigned int assoc_freq; |
d2440ba0 | 143 | |
0915d02c JM |
144 | int monitor_sock; |
145 | int monitor_ifidx; | |
4e5cb1a3 | 146 | int disable_11b_rates; |
7da3abe7 | 147 | |
55777702 | 148 | unsigned int pending_remain_on_chan:1; |
94627f6c JM |
149 | unsigned int added_bridge:1; |
150 | unsigned int added_if_into_bridge:1; | |
55777702 JM |
151 | |
152 | u64 remain_on_chan_cookie; | |
58f6fbe0 | 153 | u64 send_action_cookie; |
c5121837 | 154 | |
5582a5d1 JB |
155 | unsigned int last_mgmt_freq; |
156 | ||
3812464c JM |
157 | struct wpa_driver_scan_filter *filter_ssids; |
158 | size_t num_filter_ssids; | |
159 | ||
a2e40bb6 FF |
160 | struct i802_bss first_bss; |
161 | ||
c5121837 | 162 | #ifdef HOSTAPD |
c5121837 | 163 | int eapol_sock; /* socket for EAPOL frames */ |
c5121837 JM |
164 | |
165 | int default_if_indices[16]; | |
166 | int *if_indices; | |
167 | int num_if_indices; | |
168 | ||
c5121837 JM |
169 | int last_freq; |
170 | int last_freq_ht; | |
c5121837 | 171 | #endif /* HOSTAPD */ |
3f5285e8 JM |
172 | }; |
173 | ||
174 | ||
175 | static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, | |
176 | void *timeout_ctx); | |
ad1e68e6 | 177 | static int wpa_driver_nl80211_set_mode(void *priv, int mode); |
362f781e | 178 | static int |
7524cfb1 | 179 | wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); |
d72aad94 | 180 | static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, |
77339912 JM |
181 | const u8 *addr, int cmd, u16 reason_code, |
182 | int local_state_change); | |
460456f8 JM |
183 | static void nl80211_remove_monitor_interface( |
184 | struct wpa_driver_nl80211_data *drv); | |
5582a5d1 JB |
185 | static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv, |
186 | unsigned int freq, const u8 *buf, | |
187 | size_t buf_len, u64 *cookie); | |
188 | static int wpa_driver_nl80211_probe_req_report(void *priv, int report); | |
0915d02c | 189 | |
072ad14c | 190 | #ifdef HOSTAPD |
2135f224 JM |
191 | static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); |
192 | static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); | |
97cfcf64 | 193 | static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); |
fbbfcbac FF |
194 | static int wpa_driver_nl80211_if_remove(void *priv, |
195 | enum wpa_driver_if_type type, | |
196 | const char *ifname); | |
37eb8da9 JM |
197 | #else /* HOSTAPD */ |
198 | static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
199 | { | |
200 | return 0; | |
201 | } | |
072ad14c JM |
202 | #endif /* HOSTAPD */ |
203 | ||
e3802622 | 204 | static int i802_set_freq(void *priv, struct hostapd_freq_params *freq); |
4e5cb1a3 JM |
205 | static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, |
206 | int ifindex, int disabled); | |
504e905c | 207 | |
3f5285e8 | 208 | |
6241fcb1 JM |
209 | /* nl80211 code */ |
210 | static int ack_handler(struct nl_msg *msg, void *arg) | |
211 | { | |
212 | int *err = arg; | |
213 | *err = 0; | |
214 | return NL_STOP; | |
215 | } | |
216 | ||
217 | static int finish_handler(struct nl_msg *msg, void *arg) | |
218 | { | |
8e8df255 JM |
219 | int *ret = arg; |
220 | *ret = 0; | |
6241fcb1 JM |
221 | return NL_SKIP; |
222 | } | |
223 | ||
224 | static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, | |
225 | void *arg) | |
226 | { | |
227 | int *ret = arg; | |
228 | *ret = err->error; | |
229 | return NL_SKIP; | |
230 | } | |
231 | ||
5b7b85f6 JM |
232 | |
233 | static int no_seq_check(struct nl_msg *msg, void *arg) | |
234 | { | |
235 | return NL_OK; | |
236 | } | |
237 | ||
238 | ||
58f6fbe0 JM |
239 | static int send_and_recv(struct wpa_driver_nl80211_data *drv, |
240 | struct nl_handle *nl_handle, struct nl_msg *msg, | |
241 | int (*valid_handler)(struct nl_msg *, void *), | |
242 | void *valid_data) | |
6241fcb1 JM |
243 | { |
244 | struct nl_cb *cb; | |
245 | int err = -ENOMEM; | |
246 | ||
247 | cb = nl_cb_clone(drv->nl_cb); | |
248 | if (!cb) | |
249 | goto out; | |
250 | ||
58f6fbe0 | 251 | err = nl_send_auto_complete(nl_handle, msg); |
6241fcb1 JM |
252 | if (err < 0) |
253 | goto out; | |
254 | ||
255 | err = 1; | |
256 | ||
257 | nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); | |
8e8df255 | 258 | nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); |
6241fcb1 JM |
259 | nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); |
260 | ||
261 | if (valid_handler) | |
262 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, | |
263 | valid_handler, valid_data); | |
264 | ||
265 | while (err > 0) | |
58f6fbe0 | 266 | nl_recvmsgs(nl_handle, cb); |
6241fcb1 JM |
267 | out: |
268 | nl_cb_put(cb); | |
269 | nlmsg_free(msg); | |
270 | return err; | |
271 | } | |
272 | ||
273 | ||
58f6fbe0 JM |
274 | static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, |
275 | struct nl_msg *msg, | |
276 | int (*valid_handler)(struct nl_msg *, void *), | |
277 | void *valid_data) | |
278 | { | |
279 | return send_and_recv(drv, drv->nl_handle, msg, valid_handler, | |
280 | valid_data); | |
281 | } | |
282 | ||
283 | ||
97865538 JM |
284 | struct family_data { |
285 | const char *group; | |
286 | int id; | |
287 | }; | |
288 | ||
289 | ||
290 | static int family_handler(struct nl_msg *msg, void *arg) | |
291 | { | |
292 | struct family_data *res = arg; | |
293 | struct nlattr *tb[CTRL_ATTR_MAX + 1]; | |
294 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
295 | struct nlattr *mcgrp; | |
296 | int i; | |
297 | ||
298 | nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
299 | genlmsg_attrlen(gnlh, 0), NULL); | |
300 | if (!tb[CTRL_ATTR_MCAST_GROUPS]) | |
301 | return NL_SKIP; | |
302 | ||
303 | nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { | |
304 | struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; | |
305 | nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), | |
306 | nla_len(mcgrp), NULL); | |
307 | if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || | |
308 | !tb2[CTRL_ATTR_MCAST_GRP_ID] || | |
309 | os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), | |
310 | res->group, | |
311 | nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) | |
312 | continue; | |
313 | res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); | |
314 | break; | |
315 | }; | |
316 | ||
317 | return NL_SKIP; | |
318 | } | |
319 | ||
320 | ||
321 | static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv, | |
322 | const char *family, const char *group) | |
323 | { | |
324 | struct nl_msg *msg; | |
325 | int ret = -1; | |
326 | struct family_data res = { group, -ENOENT }; | |
327 | ||
328 | msg = nlmsg_alloc(); | |
329 | if (!msg) | |
330 | return -ENOMEM; | |
331 | genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"), | |
332 | 0, 0, CTRL_CMD_GETFAMILY, 0); | |
333 | NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); | |
334 | ||
335 | ret = send_and_recv_msgs(drv, msg, family_handler, &res); | |
336 | msg = NULL; | |
337 | if (ret == 0) | |
338 | ret = res.id; | |
339 | ||
340 | nla_put_failure: | |
341 | nlmsg_free(msg); | |
342 | return ret; | |
343 | } | |
344 | ||
345 | ||
3f5285e8 JM |
346 | static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) |
347 | { | |
a2e40bb6 FF |
348 | struct i802_bss *bss = priv; |
349 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c2a04078 JM |
350 | if (!drv->associated) |
351 | return -1; | |
352 | os_memcpy(bssid, drv->bssid, ETH_ALEN); | |
353 | return 0; | |
3f5285e8 JM |
354 | } |
355 | ||
356 | ||
3f5285e8 JM |
357 | static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) |
358 | { | |
a2e40bb6 FF |
359 | struct i802_bss *bss = priv; |
360 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
fd05d64e JM |
361 | if (!drv->associated) |
362 | return -1; | |
363 | os_memcpy(ssid, drv->ssid, drv->ssid_len); | |
364 | return drv->ssid_len; | |
3f5285e8 JM |
365 | } |
366 | ||
367 | ||
7524cfb1 | 368 | static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, |
08063178 | 369 | char *buf, size_t len, int del) |
3f5285e8 JM |
370 | { |
371 | union wpa_event_data event; | |
372 | ||
373 | os_memset(&event, 0, sizeof(event)); | |
374 | if (len > sizeof(event.interface_status.ifname)) | |
375 | len = sizeof(event.interface_status.ifname) - 1; | |
376 | os_memcpy(event.interface_status.ifname, buf, len); | |
377 | event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : | |
378 | EVENT_INTERFACE_ADDED; | |
379 | ||
380 | wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", | |
381 | del ? "DEL" : "NEW", | |
382 | event.interface_status.ifname, | |
383 | del ? "removed" : "added"); | |
384 | ||
a2e40bb6 | 385 | if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { |
7524cfb1 JM |
386 | if (del) |
387 | drv->if_removed = 1; | |
388 | else | |
389 | drv->if_removed = 0; | |
390 | } | |
391 | ||
08063178 | 392 | wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); |
3f5285e8 JM |
393 | } |
394 | ||
395 | ||
7524cfb1 | 396 | static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, |
62d680c3 | 397 | u8 *buf, size_t len) |
7524cfb1 | 398 | { |
62d680c3 | 399 | int attrlen, rta_len; |
7524cfb1 JM |
400 | struct rtattr *attr; |
401 | ||
62d680c3 JM |
402 | attrlen = len; |
403 | attr = (struct rtattr *) buf; | |
7524cfb1 JM |
404 | |
405 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); | |
406 | while (RTA_OK(attr, attrlen)) { | |
407 | if (attr->rta_type == IFLA_IFNAME) { | |
a2e40bb6 | 408 | if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) |
7524cfb1 JM |
409 | == 0) |
410 | return 1; | |
411 | else | |
412 | break; | |
413 | } | |
414 | attr = RTA_NEXT(attr, attrlen); | |
415 | } | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | ||
421 | static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, | |
62d680c3 | 422 | int ifindex, u8 *buf, size_t len) |
7524cfb1 JM |
423 | { |
424 | if (drv->ifindex == ifindex) | |
425 | return 1; | |
426 | ||
62d680c3 | 427 | if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { |
a2e40bb6 | 428 | drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname); |
7524cfb1 JM |
429 | wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " |
430 | "interface"); | |
431 | wpa_driver_nl80211_finish_drv_init(drv); | |
432 | return 1; | |
433 | } | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
438 | ||
62d680c3 JM |
439 | static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, |
440 | struct ifinfomsg *ifi, | |
441 | u8 *buf, size_t len) | |
3f5285e8 | 442 | { |
08063178 | 443 | struct wpa_driver_nl80211_data *drv = ctx; |
62d680c3 JM |
444 | int attrlen, rta_len; |
445 | struct rtattr *attr; | |
97cfcf64 | 446 | u32 brid = 0; |
3f5285e8 | 447 | |
97cfcf64 B |
448 | if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, buf, len) && |
449 | !have_ifidx(drv, ifi->ifi_index)) { | |
450 | wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " | |
451 | "ifindex %d", ifi->ifi_index); | |
3f5285e8 JM |
452 | return; |
453 | } | |
454 | ||
455 | wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " | |
456 | "(%s%s%s%s)", | |
457 | drv->operstate, ifi->ifi_flags, | |
458 | (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", | |
459 | (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", | |
460 | (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", | |
461 | (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); | |
a63063b4 JM |
462 | |
463 | if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { | |
464 | wpa_printf(MSG_DEBUG, "nl80211: Interface down"); | |
465 | drv->if_disabled = 1; | |
466 | wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL); | |
467 | } | |
468 | ||
469 | if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { | |
470 | wpa_printf(MSG_DEBUG, "nl80211: Interface up"); | |
471 | drv->if_disabled = 0; | |
472 | wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL); | |
473 | } | |
474 | ||
3f5285e8 JM |
475 | /* |
476 | * Some drivers send the association event before the operup event--in | |
477 | * this case, lifting operstate in wpa_driver_nl80211_set_operstate() | |
478 | * fails. This will hit us when wpa_supplicant does not need to do | |
479 | * IEEE 802.1X authentication | |
480 | */ | |
481 | if (drv->operstate == 1 && | |
482 | (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && | |
483 | !(ifi->ifi_flags & IFF_RUNNING)) | |
08063178 | 484 | netlink_send_oper_ifla(drv->netlink, drv->ifindex, |
e2d02c29 | 485 | -1, IF_OPER_UP); |
3f5285e8 | 486 | |
62d680c3 JM |
487 | attrlen = len; |
488 | attr = (struct rtattr *) buf; | |
3f5285e8 JM |
489 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); |
490 | while (RTA_OK(attr, attrlen)) { | |
d8816397 | 491 | if (attr->rta_type == IFLA_IFNAME) { |
7524cfb1 | 492 | wpa_driver_nl80211_event_link( |
08063178 | 493 | drv, |
7524cfb1 JM |
494 | ((char *) attr) + rta_len, |
495 | attr->rta_len - rta_len, 0); | |
97cfcf64 B |
496 | } else if (attr->rta_type == IFLA_MASTER) |
497 | brid = nla_get_u32((struct nlattr *) attr); | |
3f5285e8 JM |
498 | attr = RTA_NEXT(attr, attrlen); |
499 | } | |
97cfcf64 | 500 | |
37eb8da9 | 501 | #ifdef HOSTAPD |
97cfcf64 B |
502 | if (ifi->ifi_family == AF_BRIDGE && brid) { |
503 | /* device has been added to bridge */ | |
504 | char namebuf[IFNAMSIZ]; | |
505 | if_indextoname(brid, namebuf); | |
506 | wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", | |
507 | brid, namebuf); | |
508 | add_ifidx(drv, brid); | |
509 | } | |
37eb8da9 | 510 | #endif /* HOSTAPD */ |
3f5285e8 JM |
511 | } |
512 | ||
513 | ||
62d680c3 JM |
514 | static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, |
515 | struct ifinfomsg *ifi, | |
516 | u8 *buf, size_t len) | |
3f5285e8 | 517 | { |
08063178 | 518 | struct wpa_driver_nl80211_data *drv = ctx; |
62d680c3 JM |
519 | int attrlen, rta_len; |
520 | struct rtattr *attr; | |
97cfcf64 | 521 | u32 brid = 0; |
3f5285e8 | 522 | |
62d680c3 JM |
523 | attrlen = len; |
524 | attr = (struct rtattr *) buf; | |
3f5285e8 JM |
525 | |
526 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); | |
527 | while (RTA_OK(attr, attrlen)) { | |
528 | if (attr->rta_type == IFLA_IFNAME) { | |
7524cfb1 | 529 | wpa_driver_nl80211_event_link( |
08063178 | 530 | drv, |
7524cfb1 JM |
531 | ((char *) attr) + rta_len, |
532 | attr->rta_len - rta_len, 1); | |
97cfcf64 B |
533 | } else if (attr->rta_type == IFLA_MASTER) |
534 | brid = nla_get_u32((struct nlattr *) attr); | |
3f5285e8 JM |
535 | attr = RTA_NEXT(attr, attrlen); |
536 | } | |
97cfcf64 | 537 | |
37eb8da9 | 538 | #ifdef HOSTAPD |
97cfcf64 B |
539 | if (ifi->ifi_family == AF_BRIDGE && brid) { |
540 | /* device has been removed from bridge */ | |
541 | char namebuf[IFNAMSIZ]; | |
542 | if_indextoname(brid, namebuf); | |
543 | wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " | |
544 | "%s", brid, namebuf); | |
545 | del_ifidx(drv, brid); | |
546 | } | |
37eb8da9 | 547 | #endif /* HOSTAPD */ |
3f5285e8 JM |
548 | } |
549 | ||
550 | ||
c2a04078 JM |
551 | static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, |
552 | const u8 *frame, size_t len) | |
553 | { | |
554 | const struct ieee80211_mgmt *mgmt; | |
555 | union wpa_event_data event; | |
556 | ||
557 | mgmt = (const struct ieee80211_mgmt *) frame; | |
558 | if (len < 24 + sizeof(mgmt->u.auth)) { | |
559 | wpa_printf(MSG_DEBUG, "nl80211: Too short association event " | |
560 | "frame"); | |
561 | return; | |
562 | } | |
563 | ||
e6b8efeb | 564 | os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); |
c2a04078 JM |
565 | os_memset(&event, 0, sizeof(event)); |
566 | os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); | |
567 | event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); | |
568 | event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); | |
569 | if (len > 24 + sizeof(mgmt->u.auth)) { | |
570 | event.auth.ies = mgmt->u.auth.variable; | |
571 | event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); | |
572 | } | |
573 | ||
574 | wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); | |
575 | } | |
576 | ||
577 | ||
578 | static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, | |
579 | const u8 *frame, size_t len) | |
580 | { | |
581 | const struct ieee80211_mgmt *mgmt; | |
582 | union wpa_event_data event; | |
583 | u16 status; | |
584 | ||
585 | mgmt = (const struct ieee80211_mgmt *) frame; | |
586 | if (len < 24 + sizeof(mgmt->u.assoc_resp)) { | |
587 | wpa_printf(MSG_DEBUG, "nl80211: Too short association event " | |
588 | "frame"); | |
589 | return; | |
590 | } | |
591 | ||
592 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
593 | if (status != WLAN_STATUS_SUCCESS) { | |
efa46078 | 594 | os_memset(&event, 0, sizeof(event)); |
59ddf221 | 595 | event.assoc_reject.bssid = mgmt->bssid; |
efa46078 JM |
596 | if (len > 24 + sizeof(mgmt->u.assoc_resp)) { |
597 | event.assoc_reject.resp_ies = | |
598 | (u8 *) mgmt->u.assoc_resp.variable; | |
599 | event.assoc_reject.resp_ies_len = | |
600 | len - 24 - sizeof(mgmt->u.assoc_resp); | |
601 | } | |
602 | event.assoc_reject.status_code = status; | |
603 | ||
604 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); | |
c2a04078 JM |
605 | return; |
606 | } | |
607 | ||
608 | drv->associated = 1; | |
609 | os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); | |
610 | ||
611 | os_memset(&event, 0, sizeof(event)); | |
612 | if (len > 24 + sizeof(mgmt->u.assoc_resp)) { | |
613 | event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; | |
614 | event.assoc_info.resp_ies_len = | |
efa46078 | 615 | len - 24 - sizeof(mgmt->u.assoc_resp); |
c2a04078 JM |
616 | } |
617 | ||
4832ecd7 JM |
618 | event.assoc_info.freq = drv->assoc_freq; |
619 | ||
c2a04078 JM |
620 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); |
621 | } | |
622 | ||
c1bb3e0a | 623 | |
da72a1c1 ZY |
624 | static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, |
625 | enum nl80211_commands cmd, struct nlattr *status, | |
626 | struct nlattr *addr, struct nlattr *req_ie, | |
627 | struct nlattr *resp_ie) | |
628 | { | |
629 | union wpa_event_data event; | |
630 | ||
7da2c527 JM |
631 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { |
632 | /* | |
633 | * Avoid reporting two association events that would confuse | |
634 | * the core code. | |
635 | */ | |
636 | wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " | |
637 | "when using userspace SME", cmd); | |
638 | return; | |
639 | } | |
640 | ||
da72a1c1 ZY |
641 | os_memset(&event, 0, sizeof(event)); |
642 | if (cmd == NL80211_CMD_CONNECT && | |
643 | nla_get_u16(status) != WLAN_STATUS_SUCCESS) { | |
644 | if (resp_ie) { | |
645 | event.assoc_reject.resp_ies = nla_data(resp_ie); | |
646 | event.assoc_reject.resp_ies_len = nla_len(resp_ie); | |
647 | } | |
648 | event.assoc_reject.status_code = nla_get_u16(status); | |
649 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); | |
650 | return; | |
651 | } | |
652 | ||
653 | drv->associated = 1; | |
654 | if (addr) | |
655 | os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); | |
656 | ||
657 | if (req_ie) { | |
658 | event.assoc_info.req_ies = nla_data(req_ie); | |
659 | event.assoc_info.req_ies_len = nla_len(req_ie); | |
660 | } | |
661 | if (resp_ie) { | |
662 | event.assoc_info.resp_ies = nla_data(resp_ie); | |
663 | event.assoc_info.resp_ies_len = nla_len(resp_ie); | |
664 | } | |
665 | ||
666 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); | |
667 | } | |
c2a04078 | 668 | |
c1bb3e0a | 669 | |
da1fb17c JM |
670 | static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, |
671 | enum nl80211_commands cmd, struct nlattr *addr) | |
672 | { | |
673 | union wpa_event_data event; | |
674 | enum wpa_event_type ev; | |
675 | ||
676 | if (nla_len(addr) != ETH_ALEN) | |
677 | return; | |
678 | ||
679 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, | |
680 | cmd, MAC2STR((u8 *) nla_data(addr))); | |
681 | ||
682 | if (cmd == NL80211_CMD_AUTHENTICATE) | |
683 | ev = EVENT_AUTH_TIMED_OUT; | |
684 | else if (cmd == NL80211_CMD_ASSOCIATE) | |
685 | ev = EVENT_ASSOC_TIMED_OUT; | |
686 | else | |
687 | return; | |
688 | ||
689 | os_memset(&event, 0, sizeof(event)); | |
690 | os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); | |
691 | wpa_supplicant_event(drv->ctx, ev, &event); | |
692 | } | |
693 | ||
694 | ||
5582a5d1 JB |
695 | static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, |
696 | struct nlattr *freq, const u8 *frame, size_t len) | |
58f6fbe0 JM |
697 | { |
698 | const struct ieee80211_mgmt *mgmt; | |
699 | union wpa_event_data event; | |
700 | u16 fc, stype; | |
701 | ||
702 | mgmt = (const struct ieee80211_mgmt *) frame; | |
703 | if (len < 24) { | |
704 | wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); | |
705 | return; | |
706 | } | |
707 | ||
708 | fc = le_to_host16(mgmt->frame_control); | |
709 | stype = WLAN_FC_GET_STYPE(fc); | |
710 | ||
711 | os_memset(&event, 0, sizeof(event)); | |
5582a5d1 | 712 | if (freq) { |
58f6fbe0 | 713 | event.rx_action.freq = nla_get_u32(freq); |
5582a5d1 JB |
714 | drv->last_mgmt_freq = event.rx_action.freq; |
715 | } | |
716 | if (stype == WLAN_FC_STYPE_ACTION) { | |
717 | event.rx_action.da = mgmt->da; | |
718 | event.rx_action.sa = mgmt->sa; | |
719 | event.rx_action.bssid = mgmt->bssid; | |
720 | event.rx_action.category = mgmt->u.action.category; | |
721 | event.rx_action.data = &mgmt->u.action.category + 1; | |
722 | event.rx_action.len = frame + len - event.rx_action.data; | |
723 | wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); | |
724 | } else { | |
725 | event.rx_mgmt.frame = frame; | |
726 | event.rx_mgmt.frame_len = len; | |
727 | wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); | |
728 | } | |
58f6fbe0 JM |
729 | } |
730 | ||
731 | ||
732 | static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv, | |
733 | struct nlattr *cookie, const u8 *frame, | |
734 | size_t len, struct nlattr *ack) | |
735 | { | |
736 | union wpa_event_data event; | |
737 | const struct ieee80211_hdr *hdr; | |
738 | u16 fc; | |
739 | u64 cookie_val; | |
740 | ||
741 | if (!cookie) | |
742 | return; | |
743 | ||
744 | cookie_val = nla_get_u64(cookie); | |
4796272f JM |
745 | wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s " |
746 | "(ack=%d)", | |
58f6fbe0 JM |
747 | (long long unsigned int) cookie_val, |
748 | cookie_val == drv->send_action_cookie ? | |
4796272f | 749 | " (match)" : " (unknown)", ack != NULL); |
58f6fbe0 JM |
750 | if (cookie_val != drv->send_action_cookie) |
751 | return; | |
752 | ||
753 | hdr = (const struct ieee80211_hdr *) frame; | |
754 | fc = le_to_host16(hdr->frame_control); | |
755 | ||
756 | os_memset(&event, 0, sizeof(event)); | |
757 | event.tx_status.type = WLAN_FC_GET_TYPE(fc); | |
758 | event.tx_status.stype = WLAN_FC_GET_STYPE(fc); | |
759 | event.tx_status.dst = hdr->addr1; | |
760 | event.tx_status.data = frame; | |
761 | event.tx_status.data_len = len; | |
762 | event.tx_status.ack = ack != NULL; | |
763 | wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); | |
764 | } | |
765 | ||
766 | ||
0544b242 JM |
767 | static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, |
768 | enum wpa_event_type type, | |
769 | const u8 *frame, size_t len) | |
770 | { | |
771 | const struct ieee80211_mgmt *mgmt; | |
772 | union wpa_event_data event; | |
773 | const u8 *bssid = NULL; | |
774 | u16 reason_code = 0; | |
775 | ||
cb30b297 PS |
776 | mgmt = (const struct ieee80211_mgmt *) frame; |
777 | if (len >= 24) { | |
778 | bssid = mgmt->bssid; | |
779 | ||
780 | if (drv->associated != 0 && | |
781 | os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && | |
782 | os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { | |
783 | /* | |
784 | * We have presumably received this deauth as a | |
785 | * response to a clear_state_mismatch() outgoing | |
786 | * deauth. Don't let it take us offline! | |
787 | */ | |
788 | wpa_printf(MSG_DEBUG, "nl80211: Deauth received " | |
789 | "from Unknown BSSID " MACSTR " -- ignoring", | |
790 | MAC2STR(bssid)); | |
791 | return; | |
792 | } | |
793 | } | |
794 | ||
0544b242 JM |
795 | drv->associated = 0; |
796 | os_memset(&event, 0, sizeof(event)); | |
797 | ||
0544b242 JM |
798 | /* Note: Same offset for Reason Code in both frame subtypes */ |
799 | if (len >= 24 + sizeof(mgmt->u.deauth)) | |
800 | reason_code = le_to_host16(mgmt->u.deauth.reason_code); | |
801 | ||
802 | if (type == EVENT_DISASSOC) { | |
803 | event.disassoc_info.addr = bssid; | |
804 | event.disassoc_info.reason_code = reason_code; | |
046b26a2 JM |
805 | if (frame + len > mgmt->u.disassoc.variable) { |
806 | event.disassoc_info.ie = mgmt->u.disassoc.variable; | |
807 | event.disassoc_info.ie_len = frame + len - | |
808 | mgmt->u.disassoc.variable; | |
809 | } | |
0544b242 JM |
810 | } else { |
811 | event.deauth_info.addr = bssid; | |
812 | event.deauth_info.reason_code = reason_code; | |
046b26a2 JM |
813 | if (frame + len > mgmt->u.deauth.variable) { |
814 | event.deauth_info.ie = mgmt->u.deauth.variable; | |
815 | event.deauth_info.ie_len = frame + len - | |
816 | mgmt->u.deauth.variable; | |
817 | } | |
0544b242 JM |
818 | } |
819 | ||
820 | wpa_supplicant_event(drv->ctx, type, &event); | |
821 | } | |
822 | ||
823 | ||
c2a04078 | 824 | static void mlme_event(struct wpa_driver_nl80211_data *drv, |
da1fb17c | 825 | enum nl80211_commands cmd, struct nlattr *frame, |
58f6fbe0 JM |
826 | struct nlattr *addr, struct nlattr *timed_out, |
827 | struct nlattr *freq, struct nlattr *ack, | |
828 | struct nlattr *cookie) | |
c2a04078 | 829 | { |
da1fb17c JM |
830 | if (timed_out && addr) { |
831 | mlme_timeout_event(drv, cmd, addr); | |
832 | return; | |
833 | } | |
834 | ||
c2a04078 JM |
835 | if (frame == NULL) { |
836 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame " | |
837 | "data", cmd); | |
838 | return; | |
839 | } | |
840 | ||
841 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd); | |
842 | wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", | |
843 | nla_data(frame), nla_len(frame)); | |
844 | ||
845 | switch (cmd) { | |
846 | case NL80211_CMD_AUTHENTICATE: | |
847 | mlme_event_auth(drv, nla_data(frame), nla_len(frame)); | |
848 | break; | |
849 | case NL80211_CMD_ASSOCIATE: | |
850 | mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); | |
851 | break; | |
852 | case NL80211_CMD_DEAUTHENTICATE: | |
0544b242 JM |
853 | mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, |
854 | nla_data(frame), nla_len(frame)); | |
c2a04078 JM |
855 | break; |
856 | case NL80211_CMD_DISASSOCIATE: | |
0544b242 JM |
857 | mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, |
858 | nla_data(frame), nla_len(frame)); | |
c2a04078 | 859 | break; |
bd94971e | 860 | case NL80211_CMD_FRAME: |
5582a5d1 | 861 | mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame)); |
58f6fbe0 | 862 | break; |
bd94971e | 863 | case NL80211_CMD_FRAME_TX_STATUS: |
58f6fbe0 JM |
864 | mlme_event_action_tx_status(drv, cookie, nla_data(frame), |
865 | nla_len(frame), ack); | |
866 | break; | |
c2a04078 JM |
867 | default: |
868 | break; | |
869 | } | |
870 | } | |
871 | ||
872 | ||
35583f3f JM |
873 | static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv, |
874 | struct nlattr *tb[]) | |
875 | { | |
876 | union wpa_event_data data; | |
877 | ||
878 | wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); | |
879 | os_memset(&data, 0, sizeof(data)); | |
880 | if (tb[NL80211_ATTR_MAC]) { | |
881 | wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", | |
882 | nla_data(tb[NL80211_ATTR_MAC]), | |
883 | nla_len(tb[NL80211_ATTR_MAC])); | |
ad1e68e6 | 884 | data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); |
35583f3f JM |
885 | } |
886 | if (tb[NL80211_ATTR_KEY_SEQ]) { | |
887 | wpa_hexdump(MSG_DEBUG, "nl80211: TSC", | |
888 | nla_data(tb[NL80211_ATTR_KEY_SEQ]), | |
889 | nla_len(tb[NL80211_ATTR_KEY_SEQ])); | |
890 | } | |
891 | if (tb[NL80211_ATTR_KEY_TYPE]) { | |
892 | enum nl80211_key_type key_type = | |
893 | nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); | |
894 | wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); | |
895 | if (key_type == NL80211_KEYTYPE_PAIRWISE) | |
896 | data.michael_mic_failure.unicast = 1; | |
897 | } else | |
898 | data.michael_mic_failure.unicast = 1; | |
899 | ||
900 | if (tb[NL80211_ATTR_KEY_IDX]) { | |
901 | u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); | |
902 | wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); | |
903 | } | |
904 | ||
905 | wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); | |
906 | } | |
907 | ||
908 | ||
5cc4d64b JM |
909 | static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, |
910 | struct nlattr *tb[]) | |
911 | { | |
912 | if (tb[NL80211_ATTR_MAC] == NULL) { | |
913 | wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " | |
914 | "event"); | |
915 | return; | |
916 | } | |
917 | os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); | |
918 | drv->associated = 1; | |
919 | wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", | |
920 | MAC2STR(drv->bssid)); | |
921 | ||
922 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); | |
923 | } | |
924 | ||
925 | ||
55777702 JM |
926 | static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, |
927 | int cancel_event, struct nlattr *tb[]) | |
928 | { | |
929 | unsigned int freq, chan_type, duration; | |
930 | union wpa_event_data data; | |
931 | u64 cookie; | |
932 | ||
933 | if (tb[NL80211_ATTR_WIPHY_FREQ]) | |
934 | freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); | |
935 | else | |
936 | freq = 0; | |
937 | ||
938 | if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) | |
939 | chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
940 | else | |
941 | chan_type = 0; | |
942 | ||
943 | if (tb[NL80211_ATTR_DURATION]) | |
944 | duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); | |
945 | else | |
946 | duration = 0; | |
947 | ||
948 | if (tb[NL80211_ATTR_COOKIE]) | |
949 | cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); | |
950 | else | |
951 | cookie = 0; | |
952 | ||
953 | wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " | |
954 | "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", | |
955 | cancel_event, freq, chan_type, duration, | |
956 | (long long unsigned int) cookie, | |
957 | cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); | |
958 | ||
959 | if (cookie != drv->remain_on_chan_cookie) | |
960 | return; /* not for us */ | |
961 | ||
962 | drv->pending_remain_on_chan = !cancel_event; | |
963 | ||
964 | os_memset(&data, 0, sizeof(data)); | |
965 | data.remain_on_channel.freq = freq; | |
966 | data.remain_on_channel.duration = duration; | |
967 | wpa_supplicant_event(drv->ctx, cancel_event ? | |
968 | EVENT_CANCEL_REMAIN_ON_CHANNEL : | |
969 | EVENT_REMAIN_ON_CHANNEL, &data); | |
970 | } | |
971 | ||
972 | ||
8d923a4a JM |
973 | static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, |
974 | struct nlattr *tb[]) | |
975 | { | |
976 | union wpa_event_data event; | |
977 | struct nlattr *nl; | |
978 | int rem; | |
979 | struct scan_info *info; | |
980 | #define MAX_REPORT_FREQS 50 | |
981 | int freqs[MAX_REPORT_FREQS]; | |
982 | int num_freqs = 0; | |
983 | ||
984 | os_memset(&event, 0, sizeof(event)); | |
985 | info = &event.scan_info; | |
986 | info->aborted = aborted; | |
987 | ||
988 | if (tb[NL80211_ATTR_SCAN_SSIDS]) { | |
989 | nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { | |
990 | struct wpa_driver_scan_ssid *s = | |
991 | &info->ssids[info->num_ssids]; | |
992 | s->ssid = nla_data(nl); | |
993 | s->ssid_len = nla_len(nl); | |
994 | info->num_ssids++; | |
995 | if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) | |
996 | break; | |
997 | } | |
998 | } | |
999 | if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
1000 | nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) | |
1001 | { | |
1002 | freqs[num_freqs] = nla_get_u32(nl); | |
1003 | num_freqs++; | |
1004 | if (num_freqs == MAX_REPORT_FREQS - 1) | |
1005 | break; | |
1006 | } | |
1007 | info->freqs = freqs; | |
1008 | info->num_freqs = num_freqs; | |
1009 | } | |
1010 | wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); | |
1011 | } | |
1012 | ||
1013 | ||
60a972a6 JM |
1014 | static int get_link_signal(struct nl_msg *msg, void *arg) |
1015 | { | |
1016 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1017 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1018 | struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; | |
1019 | static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { | |
1020 | [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, | |
1021 | }; | |
7ee35bf3 PS |
1022 | struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; |
1023 | static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { | |
1024 | [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, | |
1025 | [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, | |
1026 | [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, | |
1027 | [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, | |
1028 | }; | |
1029 | struct signal_change *sig_change = arg; | |
60a972a6 JM |
1030 | |
1031 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1032 | genlmsg_attrlen(gnlh, 0), NULL); | |
1033 | if (!tb[NL80211_ATTR_STA_INFO] || | |
1034 | nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, | |
1035 | tb[NL80211_ATTR_STA_INFO], policy)) | |
1036 | return NL_SKIP; | |
1037 | if (!sinfo[NL80211_STA_INFO_SIGNAL]) | |
1038 | return NL_SKIP; | |
1039 | ||
7ee35bf3 PS |
1040 | sig_change->current_signal = |
1041 | (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); | |
1042 | ||
1043 | if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { | |
1044 | if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, | |
1045 | sinfo[NL80211_STA_INFO_TX_BITRATE], | |
1046 | rate_policy)) { | |
1047 | sig_change->current_txrate = 0; | |
1048 | } else { | |
1049 | if (rinfo[NL80211_RATE_INFO_BITRATE]) { | |
1050 | sig_change->current_txrate = | |
1051 | nla_get_u16(rinfo[ | |
1052 | NL80211_RATE_INFO_BITRATE]) * 100; | |
1053 | } | |
1054 | } | |
1055 | } | |
1056 | ||
60a972a6 JM |
1057 | return NL_SKIP; |
1058 | } | |
1059 | ||
1060 | ||
1061 | static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, | |
7ee35bf3 | 1062 | struct signal_change *sig) |
60a972a6 JM |
1063 | { |
1064 | struct nl_msg *msg; | |
1065 | ||
7ee35bf3 PS |
1066 | sig->current_signal = -9999; |
1067 | sig->current_txrate = 0; | |
60a972a6 JM |
1068 | |
1069 | msg = nlmsg_alloc(); | |
1070 | if (!msg) | |
1071 | return -ENOMEM; | |
1072 | ||
1073 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
1074 | 0, NL80211_CMD_GET_STATION, 0); | |
1075 | ||
1076 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1077 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); | |
1078 | ||
1079 | return send_and_recv_msgs(drv, msg, get_link_signal, sig); | |
1080 | nla_put_failure: | |
1081 | return -ENOBUFS; | |
1082 | } | |
1083 | ||
1084 | ||
7ee35bf3 PS |
1085 | static int get_link_noise(struct nl_msg *msg, void *arg) |
1086 | { | |
1087 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1088 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1089 | struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; | |
1090 | static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { | |
1091 | [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, | |
1092 | [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, | |
1093 | }; | |
1094 | struct signal_change *sig_change = arg; | |
1095 | ||
1096 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1097 | genlmsg_attrlen(gnlh, 0), NULL); | |
1098 | ||
1099 | if (!tb[NL80211_ATTR_SURVEY_INFO]) { | |
1100 | wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); | |
1101 | return NL_SKIP; | |
1102 | } | |
1103 | ||
1104 | if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, | |
1105 | tb[NL80211_ATTR_SURVEY_INFO], | |
1106 | survey_policy)) { | |
1107 | wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " | |
1108 | "attributes!"); | |
1109 | return NL_SKIP; | |
1110 | } | |
1111 | ||
1112 | if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) | |
1113 | return NL_SKIP; | |
1114 | ||
1115 | if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != | |
1116 | sig_change->frequency) | |
1117 | return NL_SKIP; | |
1118 | ||
1119 | if (!sinfo[NL80211_SURVEY_INFO_NOISE]) | |
1120 | return NL_SKIP; | |
1121 | ||
1122 | sig_change->current_noise = | |
1123 | (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); | |
1124 | ||
1125 | return NL_SKIP; | |
1126 | } | |
1127 | ||
1128 | ||
1129 | static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, | |
1130 | struct signal_change *sig_change) | |
1131 | { | |
1132 | struct nl_msg *msg; | |
1133 | ||
1134 | sig_change->current_noise = 9999; | |
1135 | sig_change->frequency = drv->assoc_freq; | |
1136 | ||
1137 | msg = nlmsg_alloc(); | |
1138 | if (!msg) | |
1139 | return -ENOMEM; | |
1140 | ||
1141 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
1142 | NLM_F_DUMP, NL80211_CMD_GET_SURVEY, 0); | |
1143 | ||
1144 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1145 | ||
1146 | return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); | |
1147 | nla_put_failure: | |
1148 | return -ENOBUFS; | |
1149 | } | |
1150 | ||
1151 | ||
93910401 JM |
1152 | static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, |
1153 | struct nlattr *tb[]) | |
1154 | { | |
1155 | static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { | |
1156 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
1157 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, | |
1158 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
1159 | }; | |
1160 | struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; | |
1161 | enum nl80211_cqm_rssi_threshold_event event; | |
b625473c | 1162 | union wpa_event_data ed; |
7ee35bf3 PS |
1163 | struct signal_change sig; |
1164 | int res; | |
93910401 JM |
1165 | |
1166 | if (tb[NL80211_ATTR_CQM] == NULL || | |
1167 | nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], | |
1168 | cqm_policy)) { | |
1169 | wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); | |
1170 | return; | |
1171 | } | |
1172 | ||
1173 | if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) | |
1174 | return; | |
1175 | event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); | |
b625473c JM |
1176 | |
1177 | os_memset(&ed, 0, sizeof(ed)); | |
1178 | ||
93910401 JM |
1179 | if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { |
1180 | wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " | |
1181 | "event: RSSI high"); | |
b625473c | 1182 | ed.signal_change.above_threshold = 1; |
93910401 JM |
1183 | } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { |
1184 | wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " | |
1185 | "event: RSSI low"); | |
b625473c JM |
1186 | ed.signal_change.above_threshold = 0; |
1187 | } else | |
1188 | return; | |
1189 | ||
60a972a6 JM |
1190 | res = nl80211_get_link_signal(drv, &sig); |
1191 | if (res == 0) { | |
7ee35bf3 PS |
1192 | ed.signal_change.current_signal = sig.current_signal; |
1193 | ed.signal_change.current_txrate = sig.current_txrate; | |
1194 | wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", | |
1195 | sig.current_signal, sig.current_txrate); | |
1196 | } | |
1197 | ||
1198 | res = nl80211_get_link_noise(drv, &sig); | |
1199 | if (res == 0) { | |
1200 | ed.signal_change.current_noise = sig.current_noise; | |
1201 | wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", | |
1202 | sig.current_noise); | |
60a972a6 JM |
1203 | } |
1204 | ||
b625473c | 1205 | wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); |
93910401 JM |
1206 | } |
1207 | ||
1208 | ||
97865538 JM |
1209 | static int process_event(struct nl_msg *msg, void *arg) |
1210 | { | |
1211 | struct wpa_driver_nl80211_data *drv = arg; | |
1212 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1213 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
0544b242 | 1214 | union wpa_event_data data; |
97865538 JM |
1215 | |
1216 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1217 | genlmsg_attrlen(gnlh, 0), NULL); | |
1218 | ||
1219 | if (tb[NL80211_ATTR_IFINDEX]) { | |
1220 | int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
97cfcf64 | 1221 | if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) { |
97865538 JM |
1222 | wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)" |
1223 | " for foreign interface (ifindex %d)", | |
1224 | gnlh->cmd, ifindex); | |
1225 | return NL_SKIP; | |
1226 | } | |
1227 | } | |
1228 | ||
ad1e68e6 JM |
1229 | if (drv->ap_scan_as_station && |
1230 | (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS || | |
1231 | gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) { | |
a2e40bb6 FF |
1232 | wpa_driver_nl80211_set_mode(&drv->first_bss, |
1233 | IEEE80211_MODE_AP); | |
ad1e68e6 JM |
1234 | drv->ap_scan_as_station = 0; |
1235 | } | |
1236 | ||
97865538 | 1237 | switch (gnlh->cmd) { |
d942a79e JM |
1238 | case NL80211_CMD_TRIGGER_SCAN: |
1239 | wpa_printf(MSG_DEBUG, "nl80211: Scan trigger"); | |
1240 | break; | |
97865538 JM |
1241 | case NL80211_CMD_NEW_SCAN_RESULTS: |
1242 | wpa_printf(MSG_DEBUG, "nl80211: New scan results available"); | |
1243 | drv->scan_complete_events = 1; | |
1244 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, | |
1245 | drv->ctx); | |
8d923a4a | 1246 | send_scan_event(drv, 0, tb); |
97865538 JM |
1247 | break; |
1248 | case NL80211_CMD_SCAN_ABORTED: | |
1249 | wpa_printf(MSG_DEBUG, "nl80211: Scan aborted"); | |
1250 | /* | |
1251 | * Need to indicate that scan results are available in order | |
1252 | * not to make wpa_supplicant stop its scanning. | |
1253 | */ | |
1254 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, | |
1255 | drv->ctx); | |
8d923a4a | 1256 | send_scan_event(drv, 1, tb); |
97865538 | 1257 | break; |
c2a04078 JM |
1258 | case NL80211_CMD_AUTHENTICATE: |
1259 | case NL80211_CMD_ASSOCIATE: | |
1260 | case NL80211_CMD_DEAUTHENTICATE: | |
1261 | case NL80211_CMD_DISASSOCIATE: | |
bd94971e JB |
1262 | case NL80211_CMD_FRAME: |
1263 | case NL80211_CMD_FRAME_TX_STATUS: | |
da1fb17c | 1264 | mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME], |
58f6fbe0 JM |
1265 | tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], |
1266 | tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], | |
1267 | tb[NL80211_ATTR_COOKIE]); | |
c2a04078 | 1268 | break; |
da72a1c1 ZY |
1269 | case NL80211_CMD_CONNECT: |
1270 | case NL80211_CMD_ROAM: | |
1271 | mlme_event_connect(drv, gnlh->cmd, | |
1272 | tb[NL80211_ATTR_STATUS_CODE], | |
1273 | tb[NL80211_ATTR_MAC], | |
1274 | tb[NL80211_ATTR_REQ_IE], | |
1275 | tb[NL80211_ATTR_RESP_IE]); | |
1276 | break; | |
1277 | case NL80211_CMD_DISCONNECT: | |
7da2c527 JM |
1278 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { |
1279 | /* | |
1280 | * Avoid reporting two disassociation events that could | |
1281 | * confuse the core code. | |
1282 | */ | |
1283 | wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " | |
1284 | "event when using userspace SME"); | |
1285 | break; | |
1286 | } | |
da72a1c1 | 1287 | drv->associated = 0; |
0544b242 JM |
1288 | os_memset(&data, 0, sizeof(data)); |
1289 | if (tb[NL80211_ATTR_REASON_CODE]) | |
1290 | data.disassoc_info.reason_code = | |
1291 | nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); | |
1292 | wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data); | |
da72a1c1 | 1293 | break; |
35583f3f JM |
1294 | case NL80211_CMD_MICHAEL_MIC_FAILURE: |
1295 | mlme_event_michael_mic_failure(drv, tb); | |
1296 | break; | |
5cc4d64b JM |
1297 | case NL80211_CMD_JOIN_IBSS: |
1298 | mlme_event_join_ibss(drv, tb); | |
1299 | break; | |
55777702 JM |
1300 | case NL80211_CMD_REMAIN_ON_CHANNEL: |
1301 | mlme_event_remain_on_channel(drv, 0, tb); | |
1302 | break; | |
1303 | case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: | |
1304 | mlme_event_remain_on_channel(drv, 1, tb); | |
1305 | break; | |
93910401 JM |
1306 | case NL80211_CMD_NOTIFY_CQM: |
1307 | nl80211_cqm_event(drv, tb); | |
1308 | break; | |
33c5deb8 JM |
1309 | case NL80211_CMD_REG_CHANGE: |
1310 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); | |
1311 | wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, | |
1312 | NULL); | |
1313 | break; | |
1314 | case NL80211_CMD_REG_BEACON_HINT: | |
1315 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); | |
1316 | wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, | |
1317 | NULL); | |
1318 | break; | |
97865538 | 1319 | default: |
c2a04078 JM |
1320 | wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " |
1321 | "(cmd=%d)", gnlh->cmd); | |
97865538 JM |
1322 | break; |
1323 | } | |
1324 | ||
1325 | return NL_SKIP; | |
1326 | } | |
1327 | ||
1328 | ||
1329 | static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, | |
5582a5d1 | 1330 | void *handle) |
97865538 JM |
1331 | { |
1332 | struct nl_cb *cb; | |
1333 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
1334 | ||
1335 | wpa_printf(MSG_DEBUG, "nl80211: Event message available"); | |
1336 | ||
1337 | cb = nl_cb_clone(drv->nl_cb); | |
1338 | if (!cb) | |
1339 | return; | |
1340 | nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); | |
1341 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv); | |
5582a5d1 | 1342 | nl_recvmsgs(handle, cb); |
97865538 JM |
1343 | nl_cb_put(cb); |
1344 | } | |
1345 | ||
1346 | ||
6d158490 LR |
1347 | /** |
1348 | * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain | |
1349 | * @priv: driver_nl80211 private data | |
1350 | * @alpha2_arg: country to which to switch to | |
1351 | * Returns: 0 on success, -1 on failure | |
1352 | * | |
1353 | * This asks nl80211 to set the regulatory domain for given | |
1354 | * country ISO / IEC alpha2. | |
1355 | */ | |
1356 | static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) | |
1357 | { | |
a2e40bb6 FF |
1358 | struct i802_bss *bss = priv; |
1359 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6d158490 LR |
1360 | char alpha2[3]; |
1361 | struct nl_msg *msg; | |
1362 | ||
1363 | msg = nlmsg_alloc(); | |
1364 | if (!msg) | |
e785c2ba | 1365 | return -ENOMEM; |
6d158490 LR |
1366 | |
1367 | alpha2[0] = alpha2_arg[0]; | |
1368 | alpha2[1] = alpha2_arg[1]; | |
1369 | alpha2[2] = '\0'; | |
1370 | ||
1371 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
1372 | 0, NL80211_CMD_REQ_SET_REG, 0); | |
1373 | ||
1374 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); | |
1375 | if (send_and_recv_msgs(drv, msg, NULL, NULL)) | |
1376 | return -EINVAL; | |
1377 | return 0; | |
1378 | nla_put_failure: | |
1379 | return -EINVAL; | |
1380 | } | |
1381 | ||
1382 | ||
bbaf0837 | 1383 | #ifndef HOSTAPD |
80bc75f1 JM |
1384 | struct wiphy_info_data { |
1385 | int max_scan_ssids; | |
1581b38b | 1386 | int ap_supported; |
93d11400 ZY |
1387 | int auth_supported; |
1388 | int connect_supported; | |
80bc75f1 JM |
1389 | }; |
1390 | ||
1391 | ||
1392 | static int wiphy_info_handler(struct nl_msg *msg, void *arg) | |
1393 | { | |
1394 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1395 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1396 | struct wiphy_info_data *info = arg; | |
1397 | ||
1398 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1399 | genlmsg_attrlen(gnlh, 0), NULL); | |
1400 | ||
1401 | if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) | |
1402 | info->max_scan_ssids = | |
1403 | nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); | |
1404 | ||
1581b38b JM |
1405 | if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) { |
1406 | struct nlattr *nl_mode; | |
1407 | int i; | |
1408 | nla_for_each_nested(nl_mode, | |
1409 | tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) { | |
1410 | if (nl_mode->nla_type == NL80211_IFTYPE_AP) { | |
1411 | info->ap_supported = 1; | |
1412 | break; | |
1413 | } | |
1414 | } | |
1415 | } | |
1416 | ||
93d11400 ZY |
1417 | if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) { |
1418 | struct nlattr *nl_cmd; | |
1419 | int i; | |
1420 | ||
1421 | nla_for_each_nested(nl_cmd, | |
1422 | tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) { | |
1423 | u32 cmd = nla_get_u32(nl_cmd); | |
1424 | if (cmd == NL80211_CMD_AUTHENTICATE) | |
1425 | info->auth_supported = 1; | |
1426 | else if (cmd == NL80211_CMD_CONNECT) | |
1427 | info->connect_supported = 1; | |
1428 | } | |
1429 | } | |
1430 | ||
80bc75f1 JM |
1431 | return NL_SKIP; |
1432 | } | |
1433 | ||
1434 | ||
1435 | static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, | |
1436 | struct wiphy_info_data *info) | |
1437 | { | |
1438 | struct nl_msg *msg; | |
1439 | ||
1440 | os_memset(info, 0, sizeof(*info)); | |
1441 | msg = nlmsg_alloc(); | |
1442 | if (!msg) | |
1443 | return -1; | |
1444 | ||
1445 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
1446 | 0, NL80211_CMD_GET_WIPHY, 0); | |
1447 | ||
a2e40bb6 | 1448 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex); |
80bc75f1 JM |
1449 | |
1450 | if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0) | |
1451 | return 0; | |
1452 | msg = NULL; | |
1453 | nla_put_failure: | |
1454 | nlmsg_free(msg); | |
1455 | return -1; | |
1456 | } | |
1457 | ||
1458 | ||
93d11400 | 1459 | static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) |
80bc75f1 JM |
1460 | { |
1461 | struct wiphy_info_data info; | |
1462 | if (wpa_driver_nl80211_get_info(drv, &info)) | |
93d11400 | 1463 | return -1; |
80bc75f1 | 1464 | drv->has_capability = 1; |
1b2a72e8 JM |
1465 | /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ |
1466 | drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | | |
1467 | WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | | |
1468 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | | |
1469 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; | |
1470 | drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | | |
1471 | WPA_DRIVER_CAPA_ENC_WEP104 | | |
1472 | WPA_DRIVER_CAPA_ENC_TKIP | | |
1473 | WPA_DRIVER_CAPA_ENC_CCMP; | |
291b6068 JM |
1474 | drv->capa.auth = WPA_DRIVER_AUTH_OPEN | |
1475 | WPA_DRIVER_AUTH_SHARED | | |
1476 | WPA_DRIVER_AUTH_LEAP; | |
1b2a72e8 | 1477 | |
80bc75f1 | 1478 | drv->capa.max_scan_ssids = info.max_scan_ssids; |
1581b38b JM |
1479 | if (info.ap_supported) |
1480 | drv->capa.flags |= WPA_DRIVER_FLAGS_AP; | |
93d11400 ZY |
1481 | |
1482 | if (info.auth_supported) | |
1483 | drv->capa.flags |= WPA_DRIVER_FLAGS_SME; | |
1484 | else if (!info.connect_supported) { | |
1485 | wpa_printf(MSG_INFO, "nl80211: Driver does not support " | |
1486 | "authentication/association or connect commands"); | |
1487 | return -1; | |
1488 | } | |
1489 | ||
0194fedb | 1490 | drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; |
046b26a2 | 1491 | drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; |
814782b9 | 1492 | drv->capa.max_remain_on_chan = 5000; |
0194fedb | 1493 | |
93d11400 | 1494 | return 0; |
80bc75f1 | 1495 | } |
bbaf0837 | 1496 | #endif /* HOSTAPD */ |
80bc75f1 JM |
1497 | |
1498 | ||
ba2d0d7d | 1499 | static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) |
3f5285e8 | 1500 | { |
9fff9fdc | 1501 | int ret; |
3f5285e8 | 1502 | |
9fff9fdc | 1503 | /* Initialize generic netlink and nl80211 */ |
3f5285e8 JM |
1504 | |
1505 | drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); | |
1506 | if (drv->nl_cb == NULL) { | |
1507 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " | |
1508 | "callbacks"); | |
1509 | goto err1; | |
1510 | } | |
1511 | ||
a65a9aed | 1512 | drv->nl_handle = nl80211_handle_alloc(drv->nl_cb); |
3f5285e8 JM |
1513 | if (drv->nl_handle == NULL) { |
1514 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " | |
1515 | "callbacks"); | |
1516 | goto err2; | |
1517 | } | |
1518 | ||
a65a9aed | 1519 | drv->nl_handle_event = nl80211_handle_alloc(drv->nl_cb); |
335ce76b JM |
1520 | if (drv->nl_handle_event == NULL) { |
1521 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " | |
1522 | "callbacks (event)"); | |
1523 | goto err2b; | |
1524 | } | |
1525 | ||
3f5285e8 JM |
1526 | if (genl_connect(drv->nl_handle)) { |
1527 | wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " | |
1528 | "netlink"); | |
1529 | goto err3; | |
1530 | } | |
1531 | ||
335ce76b JM |
1532 | if (genl_connect(drv->nl_handle_event)) { |
1533 | wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " | |
1534 | "netlink (event)"); | |
1535 | goto err3; | |
1536 | } | |
1537 | ||
9fff9fdc JM |
1538 | #ifdef CONFIG_LIBNL20 |
1539 | if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) { | |
1540 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " | |
1541 | "netlink cache"); | |
1542 | goto err3; | |
1543 | } | |
335ce76b JM |
1544 | if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) < |
1545 | 0) { | |
1546 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " | |
1547 | "netlink cache (event)"); | |
1548 | goto err3b; | |
1549 | } | |
9fff9fdc | 1550 | #else /* CONFIG_LIBNL20 */ |
3f5285e8 JM |
1551 | drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle); |
1552 | if (drv->nl_cache == NULL) { | |
1553 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " | |
1554 | "netlink cache"); | |
1555 | goto err3; | |
1556 | } | |
335ce76b JM |
1557 | drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event); |
1558 | if (drv->nl_cache_event == NULL) { | |
1559 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " | |
1560 | "netlink cache (event)"); | |
1561 | goto err3b; | |
1562 | } | |
9fff9fdc JM |
1563 | #endif /* CONFIG_LIBNL20 */ |
1564 | ||
3f5285e8 JM |
1565 | drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211"); |
1566 | if (drv->nl80211 == NULL) { | |
1567 | wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " | |
1568 | "found"); | |
1569 | goto err4; | |
1570 | } | |
1571 | ||
97865538 JM |
1572 | ret = nl_get_multicast_id(drv, "nl80211", "scan"); |
1573 | if (ret >= 0) | |
335ce76b | 1574 | ret = nl_socket_add_membership(drv->nl_handle_event, ret); |
97865538 JM |
1575 | if (ret < 0) { |
1576 | wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " | |
1577 | "membership for scan events: %d (%s)", | |
1578 | ret, strerror(-ret)); | |
1579 | goto err4; | |
1580 | } | |
c2a04078 JM |
1581 | |
1582 | ret = nl_get_multicast_id(drv, "nl80211", "mlme"); | |
1583 | if (ret >= 0) | |
335ce76b | 1584 | ret = nl_socket_add_membership(drv->nl_handle_event, ret); |
c2a04078 JM |
1585 | if (ret < 0) { |
1586 | wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " | |
1587 | "membership for mlme events: %d (%s)", | |
1588 | ret, strerror(-ret)); | |
1589 | goto err4; | |
1590 | } | |
c2a04078 | 1591 | |
33c5deb8 JM |
1592 | ret = nl_get_multicast_id(drv, "nl80211", "regulatory"); |
1593 | if (ret >= 0) | |
1594 | ret = nl_socket_add_membership(drv->nl_handle_event, ret); | |
1595 | if (ret < 0) { | |
1596 | wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " | |
1597 | "membership for regulatory events: %d (%s)", | |
1598 | ret, strerror(-ret)); | |
1599 | /* Continue without regulatory events */ | |
1600 | } | |
1601 | ||
335ce76b | 1602 | eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event), |
5582a5d1 JB |
1603 | wpa_driver_nl80211_event_receive, drv, |
1604 | drv->nl_handle_event); | |
97865538 | 1605 | |
9fff9fdc JM |
1606 | return 0; |
1607 | ||
1608 | err4: | |
335ce76b JM |
1609 | nl_cache_free(drv->nl_cache_event); |
1610 | err3b: | |
9fff9fdc JM |
1611 | nl_cache_free(drv->nl_cache); |
1612 | err3: | |
a65a9aed | 1613 | nl80211_handle_destroy(drv->nl_handle_event); |
335ce76b | 1614 | err2b: |
a65a9aed | 1615 | nl80211_handle_destroy(drv->nl_handle); |
9fff9fdc JM |
1616 | err2: |
1617 | nl_cb_put(drv->nl_cb); | |
1618 | err1: | |
1619 | return -1; | |
1620 | } | |
1621 | ||
1622 | ||
8401a6b0 JM |
1623 | static void wpa_driver_nl80211_rfkill_blocked(void *ctx) |
1624 | { | |
8401a6b0 | 1625 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); |
a63063b4 JM |
1626 | /* |
1627 | * This may be for any interface; use ifdown event to disable | |
1628 | * interface. | |
1629 | */ | |
8401a6b0 JM |
1630 | } |
1631 | ||
1632 | ||
1633 | static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) | |
1634 | { | |
1635 | struct wpa_driver_nl80211_data *drv = ctx; | |
1636 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); | |
1637 | if (linux_set_iface_flags(drv->ioctl_sock, drv->first_bss.ifname, 1)) { | |
1638 | wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " | |
1639 | "after rfkill unblock"); | |
1640 | return; | |
1641 | } | |
a63063b4 | 1642 | /* rtnetlink ifup handler will report interface as enabled */ |
8401a6b0 JM |
1643 | } |
1644 | ||
1645 | ||
9fff9fdc JM |
1646 | /** |
1647 | * wpa_driver_nl80211_init - Initialize nl80211 driver interface | |
1648 | * @ctx: context to be used when calling wpa_supplicant functions, | |
1649 | * e.g., wpa_supplicant_event() | |
1650 | * @ifname: interface name, e.g., wlan0 | |
1651 | * Returns: Pointer to private data, %NULL on failure | |
1652 | */ | |
1653 | static void * wpa_driver_nl80211_init(void *ctx, const char *ifname) | |
1654 | { | |
9fff9fdc | 1655 | struct wpa_driver_nl80211_data *drv; |
08063178 | 1656 | struct netlink_config *cfg; |
8401a6b0 | 1657 | struct rfkill_config *rcfg; |
a2e40bb6 | 1658 | struct i802_bss *bss; |
9fff9fdc JM |
1659 | |
1660 | drv = os_zalloc(sizeof(*drv)); | |
1661 | if (drv == NULL) | |
1662 | return NULL; | |
1663 | drv->ctx = ctx; | |
a2e40bb6 FF |
1664 | bss = &drv->first_bss; |
1665 | bss->drv = drv; | |
1666 | os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); | |
9fff9fdc JM |
1667 | drv->monitor_ifidx = -1; |
1668 | drv->monitor_sock = -1; | |
bbaf0837 | 1669 | drv->ioctl_sock = -1; |
9fff9fdc | 1670 | |
ba2d0d7d | 1671 | if (wpa_driver_nl80211_init_nl(drv)) { |
bbaf0837 JM |
1672 | os_free(drv); |
1673 | return NULL; | |
1674 | } | |
9fff9fdc | 1675 | |
3f5285e8 JM |
1676 | drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); |
1677 | if (drv->ioctl_sock < 0) { | |
1678 | perror("socket(PF_INET,SOCK_DGRAM)"); | |
bbaf0837 | 1679 | goto failed; |
3f5285e8 JM |
1680 | } |
1681 | ||
08063178 JM |
1682 | cfg = os_zalloc(sizeof(*cfg)); |
1683 | if (cfg == NULL) | |
1684 | goto failed; | |
1685 | cfg->ctx = drv; | |
1686 | cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; | |
1687 | cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; | |
1688 | drv->netlink = netlink_init(cfg); | |
1689 | if (drv->netlink == NULL) { | |
1690 | os_free(cfg); | |
1691 | goto failed; | |
1692 | } | |
8401a6b0 JM |
1693 | |
1694 | rcfg = os_zalloc(sizeof(*rcfg)); | |
1695 | if (rcfg == NULL) | |
1696 | goto failed; | |
1697 | rcfg->ctx = drv; | |
1698 | os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); | |
1699 | rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; | |
1700 | rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; | |
1701 | drv->rfkill = rfkill_init(rcfg); | |
52169389 | 1702 | if (drv->rfkill == NULL) { |
8401a6b0 | 1703 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); |
52169389 JM |
1704 | os_free(rcfg); |
1705 | } | |
8401a6b0 | 1706 | |
08063178 | 1707 | if (wpa_driver_nl80211_finish_drv_init(drv)) |
bbaf0837 | 1708 | goto failed; |
7524cfb1 | 1709 | |
a2e40bb6 | 1710 | return bss; |
7524cfb1 | 1711 | |
bbaf0837 | 1712 | failed: |
8401a6b0 | 1713 | rfkill_deinit(drv->rfkill); |
08063178 | 1714 | netlink_deinit(drv->netlink); |
bbaf0837 JM |
1715 | if (drv->ioctl_sock >= 0) |
1716 | close(drv->ioctl_sock); | |
1717 | ||
7524cfb1 | 1718 | genl_family_put(drv->nl80211); |
7524cfb1 | 1719 | nl_cache_free(drv->nl_cache); |
a65a9aed | 1720 | nl80211_handle_destroy(drv->nl_handle); |
7524cfb1 | 1721 | nl_cb_put(drv->nl_cb); |
05ba8690 | 1722 | eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event)); |
bbaf0837 | 1723 | |
7524cfb1 JM |
1724 | os_free(drv); |
1725 | return NULL; | |
1726 | } | |
1727 | ||
1728 | ||
bd94971e | 1729 | static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv, |
5582a5d1 | 1730 | struct nl_handle *nl_handle, |
bd94971e | 1731 | u16 type, const u8 *match, size_t match_len) |
58f6fbe0 JM |
1732 | { |
1733 | struct nl_msg *msg; | |
1734 | int ret = -1; | |
1735 | ||
1736 | msg = nlmsg_alloc(); | |
1737 | if (!msg) | |
1738 | return -1; | |
1739 | ||
1740 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
1741 | NL80211_CMD_REGISTER_ACTION, 0); | |
1742 | ||
1743 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
bd94971e | 1744 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); |
58f6fbe0 JM |
1745 | NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); |
1746 | ||
5582a5d1 | 1747 | ret = send_and_recv(drv, nl_handle, msg, NULL, NULL); |
58f6fbe0 JM |
1748 | msg = NULL; |
1749 | if (ret) { | |
5582a5d1 JB |
1750 | wpa_printf(MSG_DEBUG, "nl80211: Register frame command " |
1751 | "failed (type=%u): ret=%d (%s)", | |
1752 | type, ret, strerror(-ret)); | |
1753 | wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", | |
58f6fbe0 JM |
1754 | match, match_len); |
1755 | goto nla_put_failure; | |
1756 | } | |
1757 | ret = 0; | |
1758 | nla_put_failure: | |
1759 | nlmsg_free(msg); | |
1760 | return ret; | |
1761 | } | |
1762 | ||
1763 | ||
bd94971e JB |
1764 | static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv, |
1765 | const u8 *match, size_t match_len) | |
1766 | { | |
1767 | u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); | |
5582a5d1 JB |
1768 | return nl80211_register_frame(drv, drv->nl_handle_event, |
1769 | type, match, match_len); | |
bd94971e JB |
1770 | } |
1771 | ||
1772 | ||
58f6fbe0 JM |
1773 | static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv) |
1774 | { | |
046b26a2 JM |
1775 | #ifdef CONFIG_P2P |
1776 | /* GAS Initial Request */ | |
1777 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0) | |
1778 | return -1; | |
1779 | /* GAS Initial Response */ | |
1780 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0) | |
1781 | return -1; | |
18708aad JM |
1782 | /* GAS Comeback Request */ |
1783 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0) | |
1784 | return -1; | |
1785 | /* GAS Comeback Response */ | |
1786 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0) | |
1787 | return -1; | |
046b26a2 JM |
1788 | /* P2P Public Action */ |
1789 | if (nl80211_register_action_frame(drv, | |
1790 | (u8 *) "\x04\x09\x50\x6f\x9a\x09", | |
1791 | 6) < 0) | |
1792 | return -1; | |
1793 | /* P2P Action */ | |
1794 | if (nl80211_register_action_frame(drv, | |
1795 | (u8 *) "\x7f\x50\x6f\x9a\x09", | |
1796 | 5) < 0) | |
1797 | return -1; | |
1798 | #endif /* CONFIG_P2P */ | |
1799 | ||
7b90c16a JM |
1800 | /* FT Action frames */ |
1801 | if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0) | |
1802 | return -1; | |
1803 | else | |
1804 | drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | | |
1805 | WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; | |
1806 | ||
58f6fbe0 JM |
1807 | return 0; |
1808 | } | |
1809 | ||
1810 | ||
8401a6b0 JM |
1811 | static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) |
1812 | { | |
1813 | wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); | |
1814 | } | |
1815 | ||
1816 | ||
362f781e | 1817 | static int |
7524cfb1 JM |
1818 | wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) |
1819 | { | |
a2e40bb6 | 1820 | struct i802_bss *bss = &drv->first_bss; |
8401a6b0 | 1821 | int send_rfkill_event = 0; |
a2e40bb6 FF |
1822 | |
1823 | drv->ifindex = if_nametoindex(bss->ifname); | |
1824 | drv->first_bss.ifindex = drv->ifindex; | |
a87c9d96 | 1825 | |
bbaf0837 | 1826 | #ifndef HOSTAPD |
a2e40bb6 | 1827 | if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA) < 0) { |
a87c9d96 JM |
1828 | wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to " |
1829 | "use managed mode"); | |
1830 | } | |
1831 | ||
a2e40bb6 | 1832 | if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) { |
8401a6b0 JM |
1833 | if (rfkill_is_blocked(drv->rfkill)) { |
1834 | wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " | |
1835 | "interface '%s' due to rfkill", | |
1836 | bss->ifname); | |
a63063b4 | 1837 | drv->if_disabled = 1; |
8401a6b0 JM |
1838 | send_rfkill_event = 1; |
1839 | } else { | |
1840 | wpa_printf(MSG_ERROR, "nl80211: Could not set " | |
1841 | "interface '%s' UP", bss->ifname); | |
1842 | return -1; | |
1843 | } | |
362f781e | 1844 | } |
3f5285e8 | 1845 | |
93d11400 ZY |
1846 | if (wpa_driver_nl80211_capa(drv)) |
1847 | return -1; | |
80bc75f1 | 1848 | |
08063178 | 1849 | netlink_send_oper_ifla(drv->netlink, drv->ifindex, |
e2d02c29 | 1850 | 1, IF_OPER_DORMANT); |
bbaf0837 | 1851 | #endif /* HOSTAPD */ |
362f781e | 1852 | |
7b90c16a JM |
1853 | if (nl80211_register_action_frames(drv) < 0) { |
1854 | wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " | |
1855 | "frame processing - ignore for now"); | |
1856 | /* | |
1857 | * Older kernel versions did not support this, so ignore the | |
1858 | * error for now. Some functionality may not be available | |
1859 | * because of this. | |
1860 | */ | |
1861 | } | |
58f6fbe0 | 1862 | |
8401a6b0 JM |
1863 | if (send_rfkill_event) { |
1864 | eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, | |
1865 | drv, drv->ctx); | |
1866 | } | |
1867 | ||
362f781e | 1868 | return 0; |
3f5285e8 JM |
1869 | } |
1870 | ||
1871 | ||
8a27af5c JM |
1872 | static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) |
1873 | { | |
1874 | struct nl_msg *msg; | |
1875 | ||
1876 | msg = nlmsg_alloc(); | |
1877 | if (!msg) | |
1878 | return -ENOMEM; | |
1879 | ||
1880 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
1881 | 0, NL80211_CMD_DEL_BEACON, 0); | |
1882 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1883 | ||
1884 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
1885 | nla_put_failure: | |
1886 | return -ENOBUFS; | |
1887 | } | |
8a27af5c JM |
1888 | |
1889 | ||
3f5285e8 | 1890 | /** |
7e5ba1b9 JM |
1891 | * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface |
1892 | * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init() | |
3f5285e8 JM |
1893 | * |
1894 | * Shut down driver interface and processing of driver events. Free | |
1895 | * private data buffer if one was allocated in wpa_driver_nl80211_init(). | |
1896 | */ | |
7e5ba1b9 | 1897 | static void wpa_driver_nl80211_deinit(void *priv) |
3f5285e8 | 1898 | { |
a2e40bb6 FF |
1899 | struct i802_bss *bss = priv; |
1900 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 | 1901 | |
5582a5d1 JB |
1902 | if (drv->nl_handle_preq) |
1903 | wpa_driver_nl80211_probe_req_report(bss, 0); | |
94627f6c | 1904 | if (drv->added_if_into_bridge) { |
a2e40bb6 | 1905 | if (linux_br_del_if(drv->ioctl_sock, drv->brname, bss->ifname) |
94627f6c JM |
1906 | < 0) |
1907 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " | |
1908 | "interface %s from bridge %s: %s", | |
a2e40bb6 | 1909 | bss->ifname, drv->brname, strerror(errno)); |
94627f6c JM |
1910 | } |
1911 | if (drv->added_bridge) { | |
1912 | if (linux_br_del(drv->ioctl_sock, drv->brname) < 0) | |
1913 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " | |
1914 | "bridge %s: %s", | |
1915 | drv->brname, strerror(errno)); | |
1916 | } | |
1917 | ||
460456f8 | 1918 | nl80211_remove_monitor_interface(drv); |
8a27af5c JM |
1919 | |
1920 | if (drv->nlmode == NL80211_IFTYPE_AP) | |
1921 | wpa_driver_nl80211_del_beacon(drv); | |
0915d02c | 1922 | |
bbaf0837 JM |
1923 | #ifdef HOSTAPD |
1924 | if (drv->last_freq_ht) { | |
1925 | /* Clear HT flags from the driver */ | |
1926 | struct hostapd_freq_params freq; | |
1927 | os_memset(&freq, 0, sizeof(freq)); | |
1928 | freq.freq = drv->last_freq; | |
1929 | i802_set_freq(priv, &freq); | |
1930 | } | |
1931 | ||
bbaf0837 JM |
1932 | if (drv->eapol_sock >= 0) { |
1933 | eloop_unregister_read_sock(drv->eapol_sock); | |
1934 | close(drv->eapol_sock); | |
1935 | } | |
1936 | ||
1937 | if (drv->if_indices != drv->default_if_indices) | |
1938 | os_free(drv->if_indices); | |
1b648c7e | 1939 | #endif /* HOSTAPD */ |
3f5285e8 | 1940 | |
4e5cb1a3 JM |
1941 | if (drv->disable_11b_rates) |
1942 | nl80211_disable_11b_rates(drv, drv->ifindex, 0); | |
1943 | ||
08063178 JM |
1944 | netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP); |
1945 | netlink_deinit(drv->netlink); | |
8401a6b0 | 1946 | rfkill_deinit(drv->rfkill); |
3f5285e8 | 1947 | |
bbaf0837 JM |
1948 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); |
1949 | ||
a2e40bb6 FF |
1950 | (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0); |
1951 | wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA); | |
3f5285e8 | 1952 | |
bbaf0837 JM |
1953 | if (drv->ioctl_sock >= 0) |
1954 | close(drv->ioctl_sock); | |
3f5285e8 | 1955 | |
335ce76b | 1956 | eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event)); |
3f5285e8 JM |
1957 | genl_family_put(drv->nl80211); |
1958 | nl_cache_free(drv->nl_cache); | |
335ce76b | 1959 | nl_cache_free(drv->nl_cache_event); |
a65a9aed JB |
1960 | nl80211_handle_destroy(drv->nl_handle); |
1961 | nl80211_handle_destroy(drv->nl_handle_event); | |
3f5285e8 JM |
1962 | nl_cb_put(drv->nl_cb); |
1963 | ||
3812464c JM |
1964 | os_free(drv->filter_ssids); |
1965 | ||
3f5285e8 JM |
1966 | os_free(drv); |
1967 | } | |
1968 | ||
1969 | ||
1970 | /** | |
1971 | * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion | |
ad1e68e6 | 1972 | * @eloop_ctx: Driver private data |
3f5285e8 JM |
1973 | * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() |
1974 | * | |
1975 | * This function can be used as registered timeout when starting a scan to | |
1976 | * generate a scan completed event if the driver does not report this. | |
1977 | */ | |
1978 | static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) | |
1979 | { | |
ad1e68e6 JM |
1980 | struct wpa_driver_nl80211_data *drv = eloop_ctx; |
1981 | if (drv->ap_scan_as_station) { | |
a2e40bb6 FF |
1982 | wpa_driver_nl80211_set_mode(&drv->first_bss, |
1983 | IEEE80211_MODE_AP); | |
ad1e68e6 JM |
1984 | drv->ap_scan_as_station = 0; |
1985 | } | |
3f5285e8 JM |
1986 | wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); |
1987 | wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); | |
1988 | } | |
1989 | ||
1990 | ||
1991 | /** | |
1992 | * wpa_driver_nl80211_scan - Request the driver to initiate scan | |
ad1e68e6 | 1993 | * @priv: Pointer to private driver data from wpa_driver_nl80211_init() |
6a1063e0 | 1994 | * @params: Scan parameters |
3f5285e8 JM |
1995 | * Returns: 0 on success, -1 on failure |
1996 | */ | |
6a1063e0 JM |
1997 | static int wpa_driver_nl80211_scan(void *priv, |
1998 | struct wpa_driver_scan_params *params) | |
3f5285e8 | 1999 | { |
a2e40bb6 FF |
2000 | struct i802_bss *bss = priv; |
2001 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 | 2002 | int ret = 0, timeout; |
d3a98225 | 2003 | struct nl_msg *msg, *ssids, *freqs; |
6a1063e0 | 2004 | size_t i; |
3f5285e8 | 2005 | |
0e75527f JM |
2006 | msg = nlmsg_alloc(); |
2007 | ssids = nlmsg_alloc(); | |
d3a98225 JM |
2008 | freqs = nlmsg_alloc(); |
2009 | if (!msg || !ssids || !freqs) { | |
0e75527f JM |
2010 | nlmsg_free(msg); |
2011 | nlmsg_free(ssids); | |
d3a98225 | 2012 | nlmsg_free(freqs); |
3f5285e8 JM |
2013 | return -1; |
2014 | } | |
2015 | ||
3812464c JM |
2016 | os_free(drv->filter_ssids); |
2017 | drv->filter_ssids = params->filter_ssids; | |
2018 | params->filter_ssids = NULL; | |
2019 | drv->num_filter_ssids = params->num_filter_ssids; | |
2020 | ||
0e75527f JM |
2021 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, |
2022 | NL80211_CMD_TRIGGER_SCAN, 0); | |
2023 | ||
2024 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3f5285e8 | 2025 | |
6a1063e0 | 2026 | for (i = 0; i < params->num_ssids; i++) { |
9fad706c JM |
2027 | wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", |
2028 | params->ssids[i].ssid, | |
2029 | params->ssids[i].ssid_len); | |
6a1063e0 JM |
2030 | NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len, |
2031 | params->ssids[i].ssid); | |
3f5285e8 | 2032 | } |
6a1063e0 JM |
2033 | if (params->num_ssids) |
2034 | nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
3f5285e8 | 2035 | |
d173df52 | 2036 | if (params->extra_ies) { |
9fad706c JM |
2037 | wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs", |
2038 | params->extra_ies, params->extra_ies_len); | |
d173df52 JM |
2039 | NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len, |
2040 | params->extra_ies); | |
2041 | } | |
2042 | ||
d3a98225 | 2043 | if (params->freqs) { |
9fad706c JM |
2044 | for (i = 0; params->freqs[i]; i++) { |
2045 | wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " | |
2046 | "MHz", params->freqs[i]); | |
d3a98225 | 2047 | NLA_PUT_U32(freqs, i + 1, params->freqs[i]); |
9fad706c | 2048 | } |
d3a98225 JM |
2049 | nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs); |
2050 | } | |
2051 | ||
0e75527f JM |
2052 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
2053 | msg = NULL; | |
2054 | if (ret) { | |
2055 | wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " | |
2056 | "(%s)", ret, strerror(-ret)); | |
ad1e68e6 JM |
2057 | #ifdef HOSTAPD |
2058 | if (drv->nlmode == NL80211_IFTYPE_AP) { | |
2059 | /* | |
2060 | * mac80211 does not allow scan requests in AP mode, so | |
2061 | * try to do this in station mode. | |
2062 | */ | |
a2e40bb6 | 2063 | if (wpa_driver_nl80211_set_mode(bss, |
ad1e68e6 JM |
2064 | IEEE80211_MODE_INFRA)) |
2065 | goto nla_put_failure; | |
2066 | ||
2067 | if (wpa_driver_nl80211_scan(drv, params)) { | |
a2e40bb6 | 2068 | wpa_driver_nl80211_set_mode(bss, |
ad1e68e6 JM |
2069 | IEEE80211_MODE_AP); |
2070 | goto nla_put_failure; | |
2071 | } | |
2072 | ||
2073 | /* Restore AP mode when processing scan results */ | |
2074 | drv->ap_scan_as_station = 1; | |
2075 | ret = 0; | |
2076 | } else | |
2077 | goto nla_put_failure; | |
2078 | #else /* HOSTAPD */ | |
0e75527f | 2079 | goto nla_put_failure; |
ad1e68e6 | 2080 | #endif /* HOSTAPD */ |
3f5285e8 JM |
2081 | } |
2082 | ||
2083 | /* Not all drivers generate "scan completed" wireless event, so try to | |
2084 | * read results after a timeout. */ | |
0e75527f | 2085 | timeout = 10; |
3f5285e8 JM |
2086 | if (drv->scan_complete_events) { |
2087 | /* | |
d173df52 JM |
2088 | * The driver seems to deliver events to notify when scan is |
2089 | * complete, so use longer timeout to avoid race conditions | |
2090 | * with scanning and following association request. | |
3f5285e8 JM |
2091 | */ |
2092 | timeout = 30; | |
2093 | } | |
2094 | wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " | |
2095 | "seconds", ret, timeout); | |
2096 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); | |
0e75527f JM |
2097 | eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, |
2098 | drv, drv->ctx); | |
3f5285e8 | 2099 | |
0e75527f JM |
2100 | nla_put_failure: |
2101 | nlmsg_free(ssids); | |
2102 | nlmsg_free(msg); | |
d3a98225 | 2103 | nlmsg_free(freqs); |
3f5285e8 JM |
2104 | return ret; |
2105 | } | |
2106 | ||
2107 | ||
3812464c JM |
2108 | static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) |
2109 | { | |
2110 | const u8 *end, *pos; | |
2111 | ||
2112 | if (ies == NULL) | |
2113 | return NULL; | |
2114 | ||
2115 | pos = ies; | |
2116 | end = ies + ies_len; | |
2117 | ||
2118 | while (pos + 1 < end) { | |
2119 | if (pos + 2 + pos[1] > end) | |
2120 | break; | |
2121 | if (pos[0] == ie) | |
2122 | return pos; | |
2123 | pos += 2 + pos[1]; | |
2124 | } | |
2125 | ||
2126 | return NULL; | |
2127 | } | |
2128 | ||
2129 | ||
2130 | static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, | |
2131 | const u8 *ie, size_t ie_len) | |
2132 | { | |
2133 | const u8 *ssid; | |
2134 | size_t i; | |
2135 | ||
2136 | if (drv->filter_ssids == NULL) | |
2137 | return 0; | |
2138 | ||
2139 | ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); | |
2140 | if (ssid == NULL) | |
2141 | return 1; | |
2142 | ||
2143 | for (i = 0; i < drv->num_filter_ssids; i++) { | |
2144 | if (ssid[1] == drv->filter_ssids[i].ssid_len && | |
2145 | os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == | |
2146 | 0) | |
2147 | return 0; | |
2148 | } | |
2149 | ||
2150 | return 1; | |
2151 | } | |
2152 | ||
2153 | ||
2154 | struct nl80211_bss_info_arg { | |
2155 | struct wpa_driver_nl80211_data *drv; | |
2156 | struct wpa_scan_results *res; | |
2157 | }; | |
2158 | ||
b3db1e1c | 2159 | static int bss_info_handler(struct nl_msg *msg, void *arg) |
3f5285e8 | 2160 | { |
b3db1e1c JM |
2161 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
2162 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
2163 | struct nlattr *bss[NL80211_BSS_MAX + 1]; | |
2164 | static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { | |
2165 | [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, | |
2166 | [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, | |
2167 | [NL80211_BSS_TSF] = { .type = NLA_U64 }, | |
2168 | [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, | |
2169 | [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, | |
2170 | [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, | |
2171 | [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, | |
2172 | [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, | |
e6b8efeb | 2173 | [NL80211_BSS_STATUS] = { .type = NLA_U32 }, |
b3ad11bb | 2174 | [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, |
8c090654 | 2175 | [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, |
b3db1e1c | 2176 | }; |
3812464c JM |
2177 | struct nl80211_bss_info_arg *_arg = arg; |
2178 | struct wpa_scan_results *res = _arg->res; | |
3f5285e8 JM |
2179 | struct wpa_scan_res **tmp; |
2180 | struct wpa_scan_res *r; | |
8c090654 JM |
2181 | const u8 *ie, *beacon_ie; |
2182 | size_t ie_len, beacon_ie_len; | |
2183 | u8 *pos; | |
3f5285e8 | 2184 | |
b3db1e1c JM |
2185 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
2186 | genlmsg_attrlen(gnlh, 0), NULL); | |
2187 | if (!tb[NL80211_ATTR_BSS]) | |
2188 | return NL_SKIP; | |
2189 | if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], | |
2190 | bss_policy)) | |
2191 | return NL_SKIP; | |
2192 | if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { | |
2193 | ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); | |
2194 | ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); | |
2195 | } else { | |
2196 | ie = NULL; | |
2197 | ie_len = 0; | |
2198 | } | |
8c090654 JM |
2199 | if (bss[NL80211_BSS_BEACON_IES]) { |
2200 | beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); | |
2201 | beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); | |
2202 | } else { | |
2203 | beacon_ie = NULL; | |
2204 | beacon_ie_len = 0; | |
2205 | } | |
3f5285e8 | 2206 | |
3812464c JM |
2207 | if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, |
2208 | ie ? ie_len : beacon_ie_len)) | |
2209 | return NL_SKIP; | |
2210 | ||
8c090654 | 2211 | r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); |
3f5285e8 | 2212 | if (r == NULL) |
b3db1e1c JM |
2213 | return NL_SKIP; |
2214 | if (bss[NL80211_BSS_BSSID]) | |
2215 | os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), | |
2216 | ETH_ALEN); | |
2217 | if (bss[NL80211_BSS_FREQUENCY]) | |
2218 | r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); | |
2219 | if (bss[NL80211_BSS_BEACON_INTERVAL]) | |
2220 | r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); | |
2221 | if (bss[NL80211_BSS_CAPABILITY]) | |
2222 | r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); | |
7c2849d2 JM |
2223 | r->flags |= WPA_SCAN_NOISE_INVALID; |
2224 | if (bss[NL80211_BSS_SIGNAL_MBM]) { | |
b3db1e1c | 2225 | r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); |
7c2849d2 JM |
2226 | r->level /= 100; /* mBm to dBm */ |
2227 | r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; | |
2228 | } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { | |
2229 | r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); | |
2230 | r->flags |= WPA_SCAN_LEVEL_INVALID; | |
2231 | } else | |
2232 | r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; | |
b3db1e1c JM |
2233 | if (bss[NL80211_BSS_TSF]) |
2234 | r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); | |
b3ad11bb JM |
2235 | if (bss[NL80211_BSS_SEEN_MS_AGO]) |
2236 | r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); | |
b3db1e1c | 2237 | r->ie_len = ie_len; |
8c090654 JM |
2238 | pos = (u8 *) (r + 1); |
2239 | if (ie) { | |
2240 | os_memcpy(pos, ie, ie_len); | |
2241 | pos += ie_len; | |
2242 | } | |
2243 | r->beacon_ie_len = beacon_ie_len; | |
2244 | if (beacon_ie) | |
2245 | os_memcpy(pos, beacon_ie, beacon_ie_len); | |
3f5285e8 | 2246 | |
e6b8efeb JM |
2247 | if (bss[NL80211_BSS_STATUS]) { |
2248 | enum nl80211_bss_status status; | |
2249 | status = nla_get_u32(bss[NL80211_BSS_STATUS]); | |
2250 | switch (status) { | |
2251 | case NL80211_BSS_STATUS_AUTHENTICATED: | |
2252 | r->flags |= WPA_SCAN_AUTHENTICATED; | |
2253 | break; | |
2254 | case NL80211_BSS_STATUS_ASSOCIATED: | |
2255 | r->flags |= WPA_SCAN_ASSOCIATED; | |
2256 | break; | |
2257 | default: | |
2258 | break; | |
2259 | } | |
2260 | } | |
2261 | ||
3f5285e8 JM |
2262 | tmp = os_realloc(res->res, |
2263 | (res->num + 1) * sizeof(struct wpa_scan_res *)); | |
2264 | if (tmp == NULL) { | |
2265 | os_free(r); | |
b3db1e1c | 2266 | return NL_SKIP; |
3f5285e8 JM |
2267 | } |
2268 | tmp[res->num++] = r; | |
2269 | res->res = tmp; | |
b3db1e1c JM |
2270 | |
2271 | return NL_SKIP; | |
3f5285e8 | 2272 | } |
b3db1e1c | 2273 | |
3f5285e8 | 2274 | |
d72aad94 JM |
2275 | static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, |
2276 | const u8 *addr) | |
2277 | { | |
2278 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { | |
2279 | wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " | |
582507be | 2280 | "mismatch (" MACSTR ")", MAC2STR(addr)); |
d72aad94 JM |
2281 | wpa_driver_nl80211_mlme(drv, addr, |
2282 | NL80211_CMD_DEAUTHENTICATE, | |
77339912 | 2283 | WLAN_REASON_PREV_AUTH_NOT_VALID, 1); |
d72aad94 JM |
2284 | } |
2285 | } | |
2286 | ||
2287 | ||
e6b8efeb JM |
2288 | static void wpa_driver_nl80211_check_bss_status( |
2289 | struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) | |
2290 | { | |
2291 | size_t i; | |
2292 | ||
2293 | for (i = 0; i < res->num; i++) { | |
2294 | struct wpa_scan_res *r = res->res[i]; | |
2295 | if (r->flags & WPA_SCAN_AUTHENTICATED) { | |
2296 | wpa_printf(MSG_DEBUG, "nl80211: Scan results " | |
2297 | "indicates BSS status with " MACSTR | |
2298 | " as authenticated", | |
2299 | MAC2STR(r->bssid)); | |
2300 | if (drv->nlmode == NL80211_IFTYPE_STATION && | |
2301 | os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && | |
2302 | os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != | |
2303 | 0) { | |
2304 | wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" | |
2305 | " in local state (auth=" MACSTR | |
2306 | " assoc=" MACSTR ")", | |
2307 | MAC2STR(drv->auth_bssid), | |
2308 | MAC2STR(drv->bssid)); | |
582507be | 2309 | clear_state_mismatch(drv, r->bssid); |
e6b8efeb JM |
2310 | } |
2311 | } | |
2312 | ||
2313 | if (r->flags & WPA_SCAN_ASSOCIATED) { | |
2314 | wpa_printf(MSG_DEBUG, "nl80211: Scan results " | |
2315 | "indicate BSS status with " MACSTR | |
2316 | " as associated", | |
2317 | MAC2STR(r->bssid)); | |
2318 | if (drv->nlmode == NL80211_IFTYPE_STATION && | |
2319 | !drv->associated) { | |
2320 | wpa_printf(MSG_DEBUG, "nl80211: Local state " | |
2321 | "(not associated) does not match " | |
2322 | "with BSS state"); | |
d72aad94 | 2323 | clear_state_mismatch(drv, r->bssid); |
e6b8efeb JM |
2324 | } else if (drv->nlmode == NL80211_IFTYPE_STATION && |
2325 | os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != | |
2326 | 0) { | |
2327 | wpa_printf(MSG_DEBUG, "nl80211: Local state " | |
2328 | "(associated with " MACSTR ") does " | |
2329 | "not match with BSS state", | |
d72aad94 JM |
2330 | MAC2STR(drv->bssid)); |
2331 | clear_state_mismatch(drv, r->bssid); | |
2332 | clear_state_mismatch(drv, drv->bssid); | |
e6b8efeb JM |
2333 | } |
2334 | } | |
2335 | } | |
2336 | } | |
2337 | ||
2338 | ||
d1f9c410 JM |
2339 | static void wpa_scan_results_free(struct wpa_scan_results *res) |
2340 | { | |
2341 | size_t i; | |
2342 | ||
2343 | if (res == NULL) | |
2344 | return; | |
2345 | ||
2346 | for (i = 0; i < res->num; i++) | |
2347 | os_free(res->res[i]); | |
2348 | os_free(res->res); | |
2349 | os_free(res); | |
2350 | } | |
2351 | ||
2352 | ||
7e5ba1b9 | 2353 | static struct wpa_scan_results * |
8856462d | 2354 | nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) |
3f5285e8 | 2355 | { |
b3db1e1c | 2356 | struct nl_msg *msg; |
3f5285e8 | 2357 | struct wpa_scan_results *res; |
b3db1e1c | 2358 | int ret; |
3812464c | 2359 | struct nl80211_bss_info_arg arg; |
3f5285e8 JM |
2360 | |
2361 | res = os_zalloc(sizeof(*res)); | |
b3db1e1c | 2362 | if (res == NULL) |
8e2c104f | 2363 | return NULL; |
b3db1e1c JM |
2364 | msg = nlmsg_alloc(); |
2365 | if (!msg) | |
2366 | goto nla_put_failure; | |
3f5285e8 | 2367 | |
b3db1e1c JM |
2368 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP, |
2369 | NL80211_CMD_GET_SCAN, 0); | |
2370 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3f5285e8 | 2371 | |
3812464c JM |
2372 | arg.drv = drv; |
2373 | arg.res = res; | |
2374 | ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); | |
b3db1e1c JM |
2375 | msg = NULL; |
2376 | if (ret == 0) { | |
2377 | wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)", | |
2378 | (unsigned long) res->num); | |
2379 | return res; | |
3f5285e8 | 2380 | } |
b3db1e1c JM |
2381 | wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " |
2382 | "(%s)", ret, strerror(-ret)); | |
2383 | nla_put_failure: | |
2384 | nlmsg_free(msg); | |
2385 | wpa_scan_results_free(res); | |
2386 | return NULL; | |
3f5285e8 JM |
2387 | } |
2388 | ||
2389 | ||
8856462d JM |
2390 | /** |
2391 | * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results | |
2392 | * @priv: Pointer to private wext data from wpa_driver_nl80211_init() | |
2393 | * Returns: Scan results on success, -1 on failure | |
2394 | */ | |
2395 | static struct wpa_scan_results * | |
2396 | wpa_driver_nl80211_get_scan_results(void *priv) | |
2397 | { | |
a2e40bb6 FF |
2398 | struct i802_bss *bss = priv; |
2399 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8856462d JM |
2400 | struct wpa_scan_results *res; |
2401 | ||
2402 | res = nl80211_get_scan_results(drv); | |
2403 | if (res) | |
2404 | wpa_driver_nl80211_check_bss_status(drv, res); | |
2405 | return res; | |
2406 | } | |
2407 | ||
2408 | ||
2409 | static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) | |
2410 | { | |
2411 | struct wpa_scan_results *res; | |
2412 | size_t i; | |
2413 | ||
2414 | res = nl80211_get_scan_results(drv); | |
2415 | if (res == NULL) { | |
2416 | wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); | |
2417 | return; | |
2418 | } | |
2419 | ||
2420 | wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); | |
2421 | for (i = 0; i < res->num; i++) { | |
2422 | struct wpa_scan_res *r = res->res[i]; | |
2423 | wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", | |
2424 | (int) i, (int) res->num, MAC2STR(r->bssid), | |
2425 | r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", | |
2426 | r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); | |
2427 | } | |
2428 | ||
2429 | wpa_scan_results_free(res); | |
2430 | } | |
2431 | ||
2432 | ||
642187d6 | 2433 | static int wpa_driver_nl80211_set_key(const char *ifname, void *priv, |
71934751 JM |
2434 | enum wpa_alg alg, const u8 *addr, |
2435 | int key_idx, int set_tx, | |
642187d6 JM |
2436 | const u8 *seq, size_t seq_len, |
2437 | const u8 *key, size_t key_len) | |
3f5285e8 | 2438 | { |
a2e40bb6 FF |
2439 | struct i802_bss *bss = priv; |
2440 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
642187d6 | 2441 | int ifindex = if_nametoindex(ifname); |
3f5285e8 | 2442 | struct nl_msg *msg; |
1ad1cdc2 | 2443 | int ret; |
3f5285e8 | 2444 | |
1ad1cdc2 JM |
2445 | wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d " |
2446 | "set_tx=%d seq_len=%lu key_len=%lu", | |
2447 | __func__, ifindex, alg, addr, key_idx, set_tx, | |
3f5285e8 JM |
2448 | (unsigned long) seq_len, (unsigned long) key_len); |
2449 | ||
2450 | msg = nlmsg_alloc(); | |
1ad1cdc2 JM |
2451 | if (!msg) |
2452 | return -ENOMEM; | |
3f5285e8 JM |
2453 | |
2454 | if (alg == WPA_ALG_NONE) { | |
1ad1cdc2 JM |
2455 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, |
2456 | 0, NL80211_CMD_DEL_KEY, 0); | |
3f5285e8 | 2457 | } else { |
1ad1cdc2 JM |
2458 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, |
2459 | 0, NL80211_CMD_NEW_KEY, 0); | |
3f5285e8 | 2460 | NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); |
d723bab4 JM |
2461 | switch (alg) { |
2462 | case WPA_ALG_WEP: | |
2463 | if (key_len == 5) | |
2464 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
2465 | WLAN_CIPHER_SUITE_WEP40); | |
2466 | else | |
2467 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
2468 | WLAN_CIPHER_SUITE_WEP104); | |
2469 | break; | |
2470 | case WPA_ALG_TKIP: | |
2471 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
2472 | WLAN_CIPHER_SUITE_TKIP); | |
2473 | break; | |
2474 | case WPA_ALG_CCMP: | |
2475 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
2476 | WLAN_CIPHER_SUITE_CCMP); | |
2477 | break; | |
2478 | case WPA_ALG_IGTK: | |
2479 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
2480 | WLAN_CIPHER_SUITE_AES_CMAC); | |
2481 | break; | |
2482 | default: | |
2483 | wpa_printf(MSG_ERROR, "%s: Unsupported encryption " | |
2484 | "algorithm %d", __func__, alg); | |
3f5285e8 JM |
2485 | nlmsg_free(msg); |
2486 | return -1; | |
2487 | } | |
2488 | } | |
2489 | ||
849ef835 | 2490 | if (seq && seq_len) |
1ad1cdc2 JM |
2491 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); |
2492 | ||
3f5285e8 JM |
2493 | if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0) |
2494 | { | |
2495 | wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); | |
2496 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
2497 | } | |
2498 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1ad1cdc2 | 2499 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
3f5285e8 | 2500 | |
1ad1cdc2 | 2501 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
15664ad0 | 2502 | if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) |
1ad1cdc2 JM |
2503 | ret = 0; |
2504 | if (ret) | |
2505 | wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", | |
2506 | ret, strerror(-ret)); | |
3f5285e8 | 2507 | |
1ad1cdc2 JM |
2508 | /* |
2509 | * If we failed or don't need to set the default TX key (below), | |
2510 | * we're done here. | |
2511 | */ | |
2512 | if (ret || !set_tx || alg == WPA_ALG_NONE) | |
2513 | return ret; | |
de12717a | 2514 | #ifdef HOSTAPD |
1ad1cdc2 JM |
2515 | if (addr) |
2516 | return ret; | |
de12717a JM |
2517 | #else /* HOSTAPD */ |
2518 | if (drv->nlmode == NL80211_IFTYPE_AP && addr) | |
2519 | return ret; | |
1ad1cdc2 | 2520 | #endif /* HOSTAPD */ |
3f5285e8 | 2521 | |
1ad1cdc2 JM |
2522 | msg = nlmsg_alloc(); |
2523 | if (!msg) | |
2524 | return -ENOMEM; | |
3f5285e8 | 2525 | |
1ad1cdc2 JM |
2526 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, |
2527 | 0, NL80211_CMD_SET_KEY, 0); | |
2528 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
2529 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
2530 | if (alg == WPA_ALG_IGTK) | |
2531 | NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); | |
2532 | else | |
2533 | NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); | |
3f5285e8 | 2534 | |
1ad1cdc2 JM |
2535 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
2536 | if (ret == -ENOENT) | |
2537 | ret = 0; | |
2538 | if (ret) | |
2539 | wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " | |
2540 | "err=%d %s)", ret, strerror(-ret)); | |
2541 | return ret; | |
3f5285e8 JM |
2542 | |
2543 | nla_put_failure: | |
6241fcb1 | 2544 | return -ENOBUFS; |
3f5285e8 JM |
2545 | } |
2546 | ||
2547 | ||
71934751 | 2548 | static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, |
0194fedb JB |
2549 | int key_idx, int defkey, |
2550 | const u8 *seq, size_t seq_len, | |
2551 | const u8 *key, size_t key_len) | |
2552 | { | |
2553 | struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); | |
2554 | if (!key_attr) | |
2555 | return -1; | |
2556 | ||
2557 | if (defkey && alg == WPA_ALG_IGTK) | |
2558 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); | |
2559 | else if (defkey) | |
2560 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
2561 | ||
2562 | NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); | |
2563 | ||
d723bab4 JM |
2564 | switch (alg) { |
2565 | case WPA_ALG_WEP: | |
2566 | if (key_len == 5) | |
2aa5f847 JM |
2567 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
2568 | WLAN_CIPHER_SUITE_WEP40); | |
d723bab4 | 2569 | else |
2aa5f847 JM |
2570 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
2571 | WLAN_CIPHER_SUITE_WEP104); | |
d723bab4 JM |
2572 | break; |
2573 | case WPA_ALG_TKIP: | |
2aa5f847 | 2574 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); |
d723bab4 JM |
2575 | break; |
2576 | case WPA_ALG_CCMP: | |
2aa5f847 | 2577 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); |
d723bab4 JM |
2578 | break; |
2579 | case WPA_ALG_IGTK: | |
2aa5f847 JM |
2580 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
2581 | WLAN_CIPHER_SUITE_AES_CMAC); | |
d723bab4 JM |
2582 | break; |
2583 | default: | |
2584 | wpa_printf(MSG_ERROR, "%s: Unsupported encryption " | |
2585 | "algorithm %d", __func__, alg); | |
0194fedb | 2586 | return -1; |
d723bab4 | 2587 | } |
0194fedb JB |
2588 | |
2589 | if (seq && seq_len) | |
2590 | NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); | |
2591 | ||
2592 | NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); | |
2593 | ||
2594 | nla_nest_end(msg, key_attr); | |
2595 | ||
2596 | return 0; | |
2597 | nla_put_failure: | |
2598 | return -1; | |
2599 | } | |
2600 | ||
c811d5bc | 2601 | |
cfaab580 ZY |
2602 | static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, |
2603 | struct nl_msg *msg) | |
2604 | { | |
2605 | int i, privacy = 0; | |
2606 | struct nlattr *nl_keys, *nl_key; | |
2607 | ||
2608 | for (i = 0; i < 4; i++) { | |
2609 | if (!params->wep_key[i]) | |
2610 | continue; | |
2611 | privacy = 1; | |
2612 | break; | |
2613 | } | |
2614 | if (!privacy) | |
2615 | return 0; | |
2616 | ||
2617 | NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); | |
2618 | ||
2619 | nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); | |
2620 | if (!nl_keys) | |
2621 | goto nla_put_failure; | |
2622 | ||
2623 | for (i = 0; i < 4; i++) { | |
2624 | if (!params->wep_key[i]) | |
2625 | continue; | |
2626 | ||
2627 | nl_key = nla_nest_start(msg, i); | |
2628 | if (!nl_key) | |
2629 | goto nla_put_failure; | |
2630 | ||
2631 | NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], | |
2632 | params->wep_key[i]); | |
2633 | if (params->wep_key_len[i] == 5) | |
2634 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
2635 | WLAN_CIPHER_SUITE_WEP40); | |
2636 | else | |
2637 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
2638 | WLAN_CIPHER_SUITE_WEP104); | |
2639 | ||
2640 | NLA_PUT_U8(msg, NL80211_KEY_IDX, i); | |
2641 | ||
2642 | if (i == params->wep_tx_keyidx) | |
2643 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
2644 | ||
2645 | nla_nest_end(msg, nl_key); | |
2646 | } | |
2647 | nla_nest_end(msg, nl_keys); | |
2648 | ||
2649 | return 0; | |
2650 | ||
2651 | nla_put_failure: | |
2652 | return -ENOBUFS; | |
2653 | } | |
2654 | ||
2655 | ||
c2a04078 | 2656 | static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, |
77339912 JM |
2657 | const u8 *addr, int cmd, u16 reason_code, |
2658 | int local_state_change) | |
c2a04078 JM |
2659 | { |
2660 | int ret = -1; | |
2661 | struct nl_msg *msg; | |
2662 | ||
2663 | msg = nlmsg_alloc(); | |
2664 | if (!msg) | |
2665 | return -1; | |
2666 | ||
2667 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0); | |
2668 | ||
2669 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
2670 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); | |
2671 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
77339912 JM |
2672 | if (local_state_change) |
2673 | NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); | |
c2a04078 JM |
2674 | |
2675 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
2676 | msg = NULL; | |
2677 | if (ret) { | |
2678 | wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d " | |
2679 | "(%s)", ret, strerror(-ret)); | |
2680 | goto nla_put_failure; | |
2681 | } | |
2682 | ret = 0; | |
2683 | ||
2684 | nla_put_failure: | |
2685 | nlmsg_free(msg); | |
2686 | return ret; | |
2687 | } | |
3f5285e8 JM |
2688 | |
2689 | ||
cfaab580 ZY |
2690 | static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, |
2691 | const u8 *addr, int reason_code) | |
2692 | { | |
2e75a2b3 JM |
2693 | wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", |
2694 | __func__, MAC2STR(addr), reason_code); | |
cfaab580 ZY |
2695 | drv->associated = 0; |
2696 | return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT, | |
77339912 | 2697 | reason_code, 0); |
cfaab580 ZY |
2698 | } |
2699 | ||
2700 | ||
3f5285e8 | 2701 | static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr, |
c2a04078 | 2702 | int reason_code) |
3f5285e8 | 2703 | { |
a2e40bb6 FF |
2704 | struct i802_bss *bss = priv; |
2705 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
cfaab580 ZY |
2706 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) |
2707 | return wpa_driver_nl80211_disconnect(drv, addr, reason_code); | |
2e75a2b3 JM |
2708 | wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", |
2709 | __func__, MAC2STR(addr), reason_code); | |
13405f35 | 2710 | drv->associated = 0; |
c2a04078 | 2711 | return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, |
77339912 | 2712 | reason_code, 0); |
3f5285e8 JM |
2713 | } |
2714 | ||
2715 | ||
2716 | static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr, | |
c2a04078 | 2717 | int reason_code) |
3f5285e8 | 2718 | { |
a2e40bb6 FF |
2719 | struct i802_bss *bss = priv; |
2720 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
cfaab580 ZY |
2721 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) |
2722 | return wpa_driver_nl80211_disconnect(drv, addr, reason_code); | |
c2a04078 | 2723 | wpa_printf(MSG_DEBUG, "%s", __func__); |
13405f35 | 2724 | drv->associated = 0; |
c2a04078 | 2725 | return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE, |
77339912 | 2726 | reason_code, 0); |
3f5285e8 JM |
2727 | } |
2728 | ||
2729 | ||
c2a04078 JM |
2730 | static int wpa_driver_nl80211_authenticate( |
2731 | void *priv, struct wpa_driver_auth_params *params) | |
2732 | { | |
a2e40bb6 FF |
2733 | struct i802_bss *bss = priv; |
2734 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
a0b2f99b | 2735 | int ret = -1, i; |
c2a04078 JM |
2736 | struct nl_msg *msg; |
2737 | enum nl80211_auth_type type; | |
6d6f4bb8 | 2738 | int count = 0; |
c2a04078 JM |
2739 | |
2740 | drv->associated = 0; | |
e6b8efeb | 2741 | os_memset(drv->auth_bssid, 0, ETH_ALEN); |
af473088 JM |
2742 | /* FIX: IBSS mode */ |
2743 | if (drv->nlmode != NL80211_IFTYPE_STATION) | |
2744 | wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA); | |
c2a04078 | 2745 | |
a2e40bb6 | 2746 | if (wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA) < 0) |
4a867032 JM |
2747 | return -1; |
2748 | ||
6d6f4bb8 | 2749 | retry: |
c2a04078 JM |
2750 | msg = nlmsg_alloc(); |
2751 | if (!msg) | |
2752 | return -1; | |
2753 | ||
2754 | wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", | |
2755 | drv->ifindex); | |
a0b2f99b | 2756 | |
0194fedb JB |
2757 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, |
2758 | NL80211_CMD_AUTHENTICATE, 0); | |
2759 | ||
a0b2f99b JM |
2760 | for (i = 0; i < 4; i++) { |
2761 | if (!params->wep_key[i]) | |
2762 | continue; | |
2ea2fcc7 HS |
2763 | wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP, |
2764 | NULL, i, | |
a0b2f99b JM |
2765 | i == params->wep_tx_keyidx, NULL, 0, |
2766 | params->wep_key[i], | |
2767 | params->wep_key_len[i]); | |
0194fedb JB |
2768 | if (params->wep_tx_keyidx != i) |
2769 | continue; | |
2770 | if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, | |
2771 | params->wep_key[i], params->wep_key_len[i])) { | |
2772 | nlmsg_free(msg); | |
2773 | return -1; | |
2774 | } | |
a0b2f99b JM |
2775 | } |
2776 | ||
c2a04078 JM |
2777 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
2778 | if (params->bssid) { | |
2779 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
2780 | MAC2STR(params->bssid)); | |
2781 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
2782 | } | |
2783 | if (params->freq) { | |
2784 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
2785 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
2786 | } | |
2787 | if (params->ssid) { | |
2788 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
2789 | params->ssid, params->ssid_len); | |
2790 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
2791 | params->ssid); | |
2792 | } | |
2793 | wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); | |
2794 | if (params->ie) | |
2795 | NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); | |
abd9fafa | 2796 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) |
c2a04078 | 2797 | type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
abd9fafa | 2798 | else if (params->auth_alg & WPA_AUTH_ALG_SHARED) |
c2a04078 | 2799 | type = NL80211_AUTHTYPE_SHARED_KEY; |
abd9fafa | 2800 | else if (params->auth_alg & WPA_AUTH_ALG_LEAP) |
c2a04078 | 2801 | type = NL80211_AUTHTYPE_NETWORK_EAP; |
abd9fafa | 2802 | else if (params->auth_alg & WPA_AUTH_ALG_FT) |
c2a04078 JM |
2803 | type = NL80211_AUTHTYPE_FT; |
2804 | else | |
2805 | goto nla_put_failure; | |
2806 | wpa_printf(MSG_DEBUG, " * Auth Type %d", type); | |
2807 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); | |
77339912 JM |
2808 | if (params->local_state_change) { |
2809 | wpa_printf(MSG_DEBUG, " * Local state change only"); | |
2810 | NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); | |
2811 | } | |
c2a04078 JM |
2812 | |
2813 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
2814 | msg = NULL; | |
2815 | if (ret) { | |
2816 | wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d " | |
2817 | "(%s)", ret, strerror(-ret)); | |
6d6f4bb8 | 2818 | count++; |
77339912 JM |
2819 | if (ret == -EALREADY && count == 1 && params->bssid && |
2820 | !params->local_state_change) { | |
6d6f4bb8 JM |
2821 | /* |
2822 | * mac80211 does not currently accept new | |
2823 | * authentication if we are already authenticated. As a | |
2824 | * workaround, force deauthentication and try again. | |
2825 | */ | |
2826 | wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " | |
2827 | "after forced deauthentication"); | |
2828 | wpa_driver_nl80211_deauthenticate( | |
5205c4f9 | 2829 | bss, params->bssid, |
6d6f4bb8 JM |
2830 | WLAN_REASON_PREV_AUTH_NOT_VALID); |
2831 | nlmsg_free(msg); | |
2832 | goto retry; | |
2833 | } | |
c2a04078 JM |
2834 | goto nla_put_failure; |
2835 | } | |
2836 | ret = 0; | |
2837 | wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " | |
2838 | "successfully"); | |
2839 | ||
2840 | nla_put_failure: | |
2841 | nlmsg_free(msg); | |
2842 | return ret; | |
2843 | } | |
2844 | ||
2845 | ||
282d5590 JM |
2846 | struct phy_info_arg { |
2847 | u16 *num_modes; | |
2848 | struct hostapd_hw_modes *modes; | |
2849 | }; | |
2850 | ||
2851 | static int phy_info_handler(struct nl_msg *msg, void *arg) | |
2852 | { | |
2853 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
2854 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
2855 | struct phy_info_arg *phy_info = arg; | |
2856 | ||
2857 | struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; | |
2858 | ||
2859 | struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; | |
2860 | static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { | |
2861 | [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, | |
2862 | [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, | |
2863 | [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, | |
2864 | [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, | |
2865 | [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, | |
2866 | [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, | |
2867 | }; | |
2868 | ||
2869 | struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; | |
2870 | static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { | |
2871 | [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, | |
2872 | [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG }, | |
2873 | }; | |
2874 | ||
2875 | struct nlattr *nl_band; | |
2876 | struct nlattr *nl_freq; | |
2877 | struct nlattr *nl_rate; | |
2878 | int rem_band, rem_freq, rem_rate; | |
2879 | struct hostapd_hw_modes *mode; | |
2880 | int idx, mode_is_set; | |
2881 | ||
2882 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
2883 | genlmsg_attrlen(gnlh, 0), NULL); | |
2884 | ||
2885 | if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) | |
2886 | return NL_SKIP; | |
2887 | ||
2888 | nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) { | |
e62fb0a0 | 2889 | mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode)); |
282d5590 JM |
2890 | if (!mode) |
2891 | return NL_SKIP; | |
2892 | phy_info->modes = mode; | |
2893 | ||
2894 | mode_is_set = 0; | |
2895 | ||
2896 | mode = &phy_info->modes[*(phy_info->num_modes)]; | |
2897 | memset(mode, 0, sizeof(*mode)); | |
2898 | *(phy_info->num_modes) += 1; | |
2899 | ||
2900 | nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), | |
2901 | nla_len(nl_band), NULL); | |
2902 | ||
2903 | if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) { | |
2904 | mode->ht_capab = nla_get_u16( | |
2905 | tb_band[NL80211_BAND_ATTR_HT_CAPA]); | |
2906 | } | |
2907 | ||
be8eb8ab JM |
2908 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) { |
2909 | mode->a_mpdu_params |= nla_get_u8( | |
2910 | tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) & | |
2911 | 0x03; | |
2912 | } | |
2913 | ||
2914 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) { | |
2915 | mode->a_mpdu_params |= nla_get_u8( | |
2916 | tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) << | |
2917 | 2; | |
2918 | } | |
2919 | ||
08eb154d JM |
2920 | if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] && |
2921 | nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) { | |
2922 | u8 *mcs; | |
2923 | mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); | |
2924 | os_memcpy(mode->mcs_set, mcs, 16); | |
2925 | } | |
2926 | ||
282d5590 JM |
2927 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { |
2928 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
2929 | nla_len(nl_freq), freq_policy); | |
2930 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
2931 | continue; | |
2932 | mode->num_channels++; | |
2933 | } | |
2934 | ||
e62fb0a0 | 2935 | mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data)); |
282d5590 JM |
2936 | if (!mode->channels) |
2937 | return NL_SKIP; | |
2938 | ||
2939 | idx = 0; | |
2940 | ||
2941 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { | |
2942 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
2943 | nla_len(nl_freq), freq_policy); | |
2944 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
2945 | continue; | |
2946 | ||
2947 | mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); | |
2948 | mode->channels[idx].flag = 0; | |
2949 | ||
2950 | if (!mode_is_set) { | |
2951 | /* crude heuristic */ | |
2952 | if (mode->channels[idx].freq < 4000) | |
2953 | mode->mode = HOSTAPD_MODE_IEEE80211B; | |
2954 | else | |
2955 | mode->mode = HOSTAPD_MODE_IEEE80211A; | |
2956 | mode_is_set = 1; | |
2957 | } | |
2958 | ||
2959 | /* crude heuristic */ | |
2960 | if (mode->channels[idx].freq < 4000) | |
5a0ffb5f | 2961 | if (mode->channels[idx].freq == 2484) |
282d5590 JM |
2962 | mode->channels[idx].chan = 14; |
2963 | else | |
2964 | mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5; | |
2965 | else | |
2966 | mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000; | |
2967 | ||
2968 | if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
2969 | mode->channels[idx].flag |= | |
2970 | HOSTAPD_CHAN_DISABLED; | |
2971 | if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) | |
2972 | mode->channels[idx].flag |= | |
2973 | HOSTAPD_CHAN_PASSIVE_SCAN; | |
2974 | if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) | |
2975 | mode->channels[idx].flag |= | |
2976 | HOSTAPD_CHAN_NO_IBSS; | |
2977 | if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) | |
2978 | mode->channels[idx].flag |= | |
2979 | HOSTAPD_CHAN_RADAR; | |
2980 | ||
2981 | if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && | |
2982 | !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
2983 | mode->channels[idx].max_tx_power = | |
2984 | nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; | |
2985 | ||
2986 | idx++; | |
2987 | } | |
2988 | ||
2989 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
2990 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
2991 | nla_len(nl_rate), rate_policy); | |
2992 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
2993 | continue; | |
2994 | mode->num_rates++; | |
2995 | } | |
2996 | ||
e62fb0a0 | 2997 | mode->rates = os_zalloc(mode->num_rates * sizeof(int)); |
282d5590 JM |
2998 | if (!mode->rates) |
2999 | return NL_SKIP; | |
3000 | ||
3001 | idx = 0; | |
3002 | ||
3003 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
3004 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
3005 | nla_len(nl_rate), rate_policy); | |
3006 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
3007 | continue; | |
fb7842aa | 3008 | mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]); |
282d5590 JM |
3009 | |
3010 | /* crude heuristic */ | |
3011 | if (mode->mode == HOSTAPD_MODE_IEEE80211B && | |
fb7842aa | 3012 | mode->rates[idx] > 200) |
282d5590 JM |
3013 | mode->mode = HOSTAPD_MODE_IEEE80211G; |
3014 | ||
282d5590 JM |
3015 | idx++; |
3016 | } | |
3017 | } | |
3018 | ||
3019 | return NL_SKIP; | |
3020 | } | |
3021 | ||
3022 | static struct hostapd_hw_modes * | |
3023 | wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes) | |
3024 | { | |
3025 | u16 m; | |
3026 | struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; | |
3027 | int i, mode11g_idx = -1; | |
3028 | ||
3029 | /* If only 802.11g mode is included, use it to construct matching | |
3030 | * 802.11b mode data. */ | |
3031 | ||
3032 | for (m = 0; m < *num_modes; m++) { | |
3033 | if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) | |
3034 | return modes; /* 802.11b already included */ | |
3035 | if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) | |
3036 | mode11g_idx = m; | |
3037 | } | |
3038 | ||
3039 | if (mode11g_idx < 0) | |
3040 | return modes; /* 2.4 GHz band not supported at all */ | |
3041 | ||
3042 | nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes)); | |
3043 | if (nmodes == NULL) | |
3044 | return modes; /* Could not add 802.11b mode */ | |
3045 | ||
3046 | mode = &nmodes[*num_modes]; | |
3047 | os_memset(mode, 0, sizeof(*mode)); | |
3048 | (*num_modes)++; | |
3049 | modes = nmodes; | |
3050 | ||
3051 | mode->mode = HOSTAPD_MODE_IEEE80211B; | |
3052 | ||
3053 | mode11g = &modes[mode11g_idx]; | |
3054 | mode->num_channels = mode11g->num_channels; | |
3055 | mode->channels = os_malloc(mode11g->num_channels * | |
3056 | sizeof(struct hostapd_channel_data)); | |
3057 | if (mode->channels == NULL) { | |
3058 | (*num_modes)--; | |
3059 | return modes; /* Could not add 802.11b mode */ | |
3060 | } | |
3061 | os_memcpy(mode->channels, mode11g->channels, | |
3062 | mode11g->num_channels * sizeof(struct hostapd_channel_data)); | |
3063 | ||
3064 | mode->num_rates = 0; | |
fb7842aa | 3065 | mode->rates = os_malloc(4 * sizeof(int)); |
282d5590 JM |
3066 | if (mode->rates == NULL) { |
3067 | os_free(mode->channels); | |
3068 | (*num_modes)--; | |
3069 | return modes; /* Could not add 802.11b mode */ | |
3070 | } | |
3071 | ||
3072 | for (i = 0; i < mode11g->num_rates; i++) { | |
fb7842aa JM |
3073 | if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && |
3074 | mode11g->rates[i] != 55 && mode11g->rates[i] != 110) | |
282d5590 JM |
3075 | continue; |
3076 | mode->rates[mode->num_rates] = mode11g->rates[i]; | |
3077 | mode->num_rates++; | |
3078 | if (mode->num_rates == 4) | |
3079 | break; | |
3080 | } | |
3081 | ||
3082 | if (mode->num_rates == 0) { | |
3083 | os_free(mode->channels); | |
3084 | os_free(mode->rates); | |
3085 | (*num_modes)--; | |
3086 | return modes; /* No 802.11b rates */ | |
3087 | } | |
3088 | ||
3089 | wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " | |
3090 | "information"); | |
3091 | ||
3092 | return modes; | |
3093 | } | |
3094 | ||
3095 | ||
3096 | static struct hostapd_hw_modes * | |
3097 | wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) | |
3098 | { | |
a2e40bb6 FF |
3099 | struct i802_bss *bss = priv; |
3100 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
282d5590 JM |
3101 | struct nl_msg *msg; |
3102 | struct phy_info_arg result = { | |
3103 | .num_modes = num_modes, | |
3104 | .modes = NULL, | |
3105 | }; | |
3106 | ||
3107 | *num_modes = 0; | |
3108 | *flags = 0; | |
3109 | ||
3110 | msg = nlmsg_alloc(); | |
3111 | if (!msg) | |
3112 | return NULL; | |
3113 | ||
3114 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
3115 | 0, NL80211_CMD_GET_WIPHY, 0); | |
3116 | ||
3117 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3118 | ||
3119 | if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) | |
3120 | return wpa_driver_nl80211_add_11b(result.modes, num_modes); | |
3121 | nla_put_failure: | |
3122 | return NULL; | |
3123 | } | |
3124 | ||
3125 | ||
2c2010ac JM |
3126 | static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv, |
3127 | const void *data, size_t len, | |
3128 | int encrypt) | |
3129 | { | |
3130 | __u8 rtap_hdr[] = { | |
3131 | 0x00, 0x00, /* radiotap version */ | |
3132 | 0x0e, 0x00, /* radiotap length */ | |
3133 | 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ | |
3134 | IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ | |
3135 | 0x00, /* padding */ | |
3136 | 0x00, 0x00, /* RX and TX flags to indicate that */ | |
3137 | 0x00, 0x00, /* this is the injected frame directly */ | |
3138 | }; | |
3139 | struct iovec iov[2] = { | |
3140 | { | |
3141 | .iov_base = &rtap_hdr, | |
3142 | .iov_len = sizeof(rtap_hdr), | |
3143 | }, | |
3144 | { | |
3145 | .iov_base = (void *) data, | |
3146 | .iov_len = len, | |
3147 | } | |
3148 | }; | |
3149 | struct msghdr msg = { | |
3150 | .msg_name = NULL, | |
3151 | .msg_namelen = 0, | |
3152 | .msg_iov = iov, | |
3153 | .msg_iovlen = 2, | |
3154 | .msg_control = NULL, | |
3155 | .msg_controllen = 0, | |
3156 | .msg_flags = 0, | |
3157 | }; | |
3158 | ||
3159 | if (encrypt) | |
3160 | rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; | |
3161 | ||
3162 | return sendmsg(drv->monitor_sock, &msg, 0); | |
3163 | } | |
3164 | ||
3165 | ||
3166 | static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data, | |
3167 | size_t data_len) | |
3168 | { | |
a2e40bb6 FF |
3169 | struct i802_bss *bss = priv; |
3170 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
2c2010ac | 3171 | struct ieee80211_mgmt *mgmt; |
7a47d567 | 3172 | int encrypt = 1; |
2c2010ac JM |
3173 | u16 fc; |
3174 | ||
3175 | mgmt = (struct ieee80211_mgmt *) data; | |
3176 | fc = le_to_host16(mgmt->frame_control); | |
3177 | ||
5582a5d1 JB |
3178 | if (drv->nlmode == NL80211_IFTYPE_STATION && |
3179 | WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && | |
3180 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { | |
3181 | /* | |
3182 | * The use of last_mgmt_freq is a bit of a hack, | |
3183 | * but it works due to the single-threaded nature | |
3184 | * of wpa_supplicant. | |
3185 | */ | |
3186 | return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, | |
3187 | data, data_len, NULL); | |
3188 | } | |
3189 | ||
2c2010ac JM |
3190 | if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && |
3191 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { | |
3192 | /* | |
3193 | * Only one of the authentication frame types is encrypted. | |
3194 | * In order for static WEP encryption to work properly (i.e., | |
3195 | * to not encrypt the frame), we need to tell mac80211 about | |
3196 | * the frames that must not be encrypted. | |
3197 | */ | |
3198 | u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
3199 | u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); | |
7a47d567 JB |
3200 | if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) |
3201 | encrypt = 0; | |
2c2010ac JM |
3202 | } |
3203 | ||
7a47d567 | 3204 | return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt); |
2c2010ac JM |
3205 | } |
3206 | ||
3207 | ||
8b897f5a | 3208 | static int wpa_driver_nl80211_set_beacon(void *priv, |
5d674872 JM |
3209 | const u8 *head, size_t head_len, |
3210 | const u8 *tail, size_t tail_len, | |
3211 | int dtim_period, int beacon_int) | |
d2440ba0 | 3212 | { |
a2e40bb6 FF |
3213 | struct i802_bss *bss = priv; |
3214 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
d2440ba0 JM |
3215 | struct nl_msg *msg; |
3216 | u8 cmd = NL80211_CMD_NEW_BEACON; | |
3217 | int ret; | |
b4fd6fab | 3218 | int beacon_set; |
8b897f5a | 3219 | int ifindex = if_nametoindex(bss->ifname); |
b4fd6fab | 3220 | |
b4fd6fab | 3221 | beacon_set = bss->beacon_set; |
d2440ba0 JM |
3222 | |
3223 | msg = nlmsg_alloc(); | |
3224 | if (!msg) | |
3225 | return -ENOMEM; | |
3226 | ||
3227 | wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", | |
b4fd6fab JM |
3228 | beacon_set); |
3229 | if (beacon_set) | |
d2440ba0 JM |
3230 | cmd = NL80211_CMD_SET_BEACON; |
3231 | ||
3232 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
3233 | 0, cmd, 0); | |
3234 | NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head); | |
3235 | NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail); | |
b4fd6fab | 3236 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
5d674872 | 3237 | NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int); |
d2440ba0 JM |
3238 | NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period); |
3239 | ||
3240 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3241 | if (ret) { | |
3242 | wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", | |
3243 | ret, strerror(-ret)); | |
b4fd6fab | 3244 | } else { |
b4fd6fab | 3245 | bss->beacon_set = 1; |
b4fd6fab | 3246 | } |
d2440ba0 JM |
3247 | return ret; |
3248 | nla_put_failure: | |
3249 | return -ENOBUFS; | |
3250 | } | |
3251 | ||
3252 | ||
f019981a JM |
3253 | static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv, |
3254 | int freq, int ht_enabled, | |
3255 | int sec_channel_offset) | |
1581b38b JM |
3256 | { |
3257 | struct nl_msg *msg; | |
d2440ba0 | 3258 | int ret; |
1581b38b JM |
3259 | |
3260 | msg = nlmsg_alloc(); | |
3261 | if (!msg) | |
3262 | return -1; | |
3263 | ||
3264 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
3265 | NL80211_CMD_SET_WIPHY, 0); | |
3266 | ||
3267 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
f019981a JM |
3268 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); |
3269 | if (ht_enabled) { | |
3270 | switch (sec_channel_offset) { | |
3271 | case -1: | |
3272 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
3273 | NL80211_CHAN_HT40MINUS); | |
3274 | break; | |
3275 | case 1: | |
3276 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
3277 | NL80211_CHAN_HT40PLUS); | |
3278 | break; | |
3279 | default: | |
3280 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
3281 | NL80211_CHAN_HT20); | |
3282 | break; | |
3283 | } | |
3284 | } | |
1581b38b | 3285 | |
d2440ba0 JM |
3286 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
3287 | if (ret == 0) | |
1581b38b | 3288 | return 0; |
f019981a JM |
3289 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " |
3290 | "%d (%s)", freq, ret, strerror(-ret)); | |
1581b38b JM |
3291 | nla_put_failure: |
3292 | return -1; | |
3293 | } | |
3294 | ||
0f4e8b4f | 3295 | |
62847751 | 3296 | static int wpa_driver_nl80211_sta_add(void *priv, |
0f4e8b4f JM |
3297 | struct hostapd_sta_add_params *params) |
3298 | { | |
a2e40bb6 FF |
3299 | struct i802_bss *bss = priv; |
3300 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
0f4e8b4f JM |
3301 | struct nl_msg *msg; |
3302 | int ret = -ENOBUFS; | |
3303 | ||
3304 | msg = nlmsg_alloc(); | |
3305 | if (!msg) | |
3306 | return -ENOMEM; | |
3307 | ||
3308 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
3309 | 0, NL80211_CMD_NEW_STATION, 0); | |
3310 | ||
62847751 | 3311 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
0f4e8b4f JM |
3312 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); |
3313 | NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); | |
3314 | NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, | |
3315 | params->supp_rates); | |
3316 | NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, | |
3317 | params->listen_interval); | |
0f4e8b4f JM |
3318 | if (params->ht_capabilities) { |
3319 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, | |
fc4e2d95 JM |
3320 | sizeof(*params->ht_capabilities), |
3321 | params->ht_capabilities); | |
0f4e8b4f | 3322 | } |
0f4e8b4f JM |
3323 | |
3324 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3325 | if (ret) | |
3326 | wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION " | |
3327 | "result: %d (%s)", ret, strerror(-ret)); | |
3328 | if (ret == -EEXIST) | |
3329 | ret = 0; | |
3330 | nla_put_failure: | |
3331 | return ret; | |
3332 | } | |
3333 | ||
3334 | ||
3335 | static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr) | |
3336 | { | |
a2e40bb6 FF |
3337 | struct i802_bss *bss = priv; |
3338 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
0f4e8b4f JM |
3339 | struct nl_msg *msg; |
3340 | int ret; | |
3341 | ||
3342 | msg = nlmsg_alloc(); | |
3343 | if (!msg) | |
3344 | return -ENOMEM; | |
3345 | ||
3346 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
3347 | 0, NL80211_CMD_DEL_STATION, 0); | |
3348 | ||
3349 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 3350 | if_nametoindex(bss->ifname)); |
0f4e8b4f JM |
3351 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
3352 | ||
3353 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3354 | if (ret == -ENOENT) | |
3355 | return 0; | |
3356 | return ret; | |
3357 | nla_put_failure: | |
3358 | return -ENOBUFS; | |
3359 | } | |
3360 | ||
1581b38b | 3361 | |
0915d02c JM |
3362 | static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, |
3363 | int ifidx) | |
3364 | { | |
3365 | struct nl_msg *msg; | |
3366 | ||
c6e8e8e4 JM |
3367 | wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); |
3368 | ||
2135f224 JM |
3369 | #ifdef HOSTAPD |
3370 | /* stop listening for EAPOL on this interface */ | |
3371 | del_ifidx(drv, ifidx); | |
3372 | #endif /* HOSTAPD */ | |
3373 | ||
0915d02c JM |
3374 | msg = nlmsg_alloc(); |
3375 | if (!msg) | |
3376 | goto nla_put_failure; | |
3377 | ||
3378 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
3379 | 0, NL80211_CMD_DEL_INTERFACE, 0); | |
3380 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); | |
3381 | ||
3382 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
3383 | return; | |
3384 | nla_put_failure: | |
e748062b | 3385 | wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); |
0915d02c JM |
3386 | } |
3387 | ||
3388 | ||
a35187e7 KH |
3389 | static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, |
3390 | const char *ifname, | |
3391 | enum nl80211_iftype iftype, | |
fbbfcbac | 3392 | const u8 *addr, int wds) |
0915d02c JM |
3393 | { |
3394 | struct nl_msg *msg, *flags = NULL; | |
3395 | int ifidx; | |
3396 | int ret = -ENOBUFS; | |
3397 | ||
3398 | msg = nlmsg_alloc(); | |
3399 | if (!msg) | |
3400 | return -1; | |
3401 | ||
3402 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
3403 | 0, NL80211_CMD_NEW_INTERFACE, 0); | |
3404 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3405 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); | |
3406 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); | |
3407 | ||
3408 | if (iftype == NL80211_IFTYPE_MONITOR) { | |
3409 | int err; | |
3410 | ||
3411 | flags = nlmsg_alloc(); | |
3412 | if (!flags) | |
3413 | goto nla_put_failure; | |
3414 | ||
3415 | NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES); | |
3416 | ||
3417 | err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags); | |
3418 | ||
3419 | nlmsg_free(flags); | |
3420 | ||
3421 | if (err) | |
3422 | goto nla_put_failure; | |
fbbfcbac FF |
3423 | } else if (wds) { |
3424 | NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); | |
0915d02c JM |
3425 | } |
3426 | ||
3427 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3428 | if (ret) { | |
3429 | nla_put_failure: | |
a35187e7 KH |
3430 | wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", |
3431 | ifname, ret, strerror(-ret)); | |
0915d02c JM |
3432 | return ret; |
3433 | } | |
3434 | ||
3435 | ifidx = if_nametoindex(ifname); | |
c6e8e8e4 JM |
3436 | wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", |
3437 | ifname, ifidx); | |
0915d02c JM |
3438 | |
3439 | if (ifidx <= 0) | |
3440 | return -1; | |
3441 | ||
2135f224 JM |
3442 | #ifdef HOSTAPD |
3443 | /* start listening for EAPOL on this interface */ | |
3444 | add_ifidx(drv, ifidx); | |
7bfc47c3 | 3445 | #endif /* HOSTAPD */ |
2135f224 | 3446 | |
7bfc47c3 | 3447 | if (addr && iftype != NL80211_IFTYPE_MONITOR && |
2ac9688e | 3448 | linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) { |
41d931ee JM |
3449 | nl80211_remove_iface(drv, ifidx); |
3450 | return -1; | |
2135f224 | 3451 | } |
2135f224 | 3452 | |
0915d02c JM |
3453 | return ifidx; |
3454 | } | |
22a7c9d7 JM |
3455 | |
3456 | ||
a35187e7 KH |
3457 | static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, |
3458 | const char *ifname, enum nl80211_iftype iftype, | |
fbbfcbac | 3459 | const u8 *addr, int wds) |
a35187e7 KH |
3460 | { |
3461 | int ret; | |
3462 | ||
fbbfcbac | 3463 | ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds); |
a35187e7 KH |
3464 | |
3465 | /* if error occured and interface exists already */ | |
3466 | if (ret == -ENFILE && if_nametoindex(ifname)) { | |
3467 | wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); | |
3468 | ||
3469 | /* Try to remove the interface that was already there. */ | |
3470 | nl80211_remove_iface(drv, if_nametoindex(ifname)); | |
3471 | ||
3472 | /* Try to create the interface again */ | |
fbbfcbac FF |
3473 | ret = nl80211_create_iface_once(drv, ifname, iftype, addr, |
3474 | wds); | |
a35187e7 KH |
3475 | } |
3476 | ||
4e5cb1a3 JM |
3477 | if (ret >= 0 && drv->disable_11b_rates) |
3478 | nl80211_disable_11b_rates(drv, ret, 1); | |
3479 | ||
a35187e7 KH |
3480 | return ret; |
3481 | } | |
0915d02c | 3482 | |
2135f224 | 3483 | |
0915d02c JM |
3484 | static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) |
3485 | { | |
3486 | struct ieee80211_hdr *hdr; | |
f8b1f695 JM |
3487 | u16 fc; |
3488 | union wpa_event_data event; | |
0915d02c JM |
3489 | |
3490 | hdr = (struct ieee80211_hdr *) buf; | |
3491 | fc = le_to_host16(hdr->frame_control); | |
3492 | ||
f8b1f695 JM |
3493 | os_memset(&event, 0, sizeof(event)); |
3494 | event.tx_status.type = WLAN_FC_GET_TYPE(fc); | |
3495 | event.tx_status.stype = WLAN_FC_GET_STYPE(fc); | |
3496 | event.tx_status.dst = hdr->addr1; | |
3497 | event.tx_status.data = buf; | |
3498 | event.tx_status.data_len = len; | |
3499 | event.tx_status.ack = ok; | |
3500 | wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); | |
0915d02c JM |
3501 | } |
3502 | ||
3503 | ||
4b9841d3 | 3504 | static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, |
0d9fc3d8 | 3505 | u8 *buf, size_t len) |
0915d02c | 3506 | { |
f8b1f695 JM |
3507 | union wpa_event_data event; |
3508 | os_memset(&event, 0, sizeof(event)); | |
0d9fc3d8 | 3509 | event.rx_from_unknown.frame = buf; |
f8b1f695 JM |
3510 | event.rx_from_unknown.len = len; |
3511 | wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); | |
4b9841d3 | 3512 | } |
0915d02c | 3513 | |
4b9841d3 JM |
3514 | |
3515 | static void handle_frame(struct wpa_driver_nl80211_data *drv, | |
2a8b7416 | 3516 | u8 *buf, size_t len, int datarate, int ssi_signal) |
4b9841d3 JM |
3517 | { |
3518 | struct ieee80211_hdr *hdr; | |
f8b1f695 JM |
3519 | u16 fc; |
3520 | union wpa_event_data event; | |
0915d02c JM |
3521 | |
3522 | hdr = (struct ieee80211_hdr *) buf; | |
3523 | fc = le_to_host16(hdr->frame_control); | |
0915d02c | 3524 | |
4b9841d3 | 3525 | switch (WLAN_FC_GET_TYPE(fc)) { |
0915d02c | 3526 | case WLAN_FC_TYPE_MGMT: |
f8b1f695 JM |
3527 | os_memset(&event, 0, sizeof(event)); |
3528 | event.rx_mgmt.frame = buf; | |
3529 | event.rx_mgmt.frame_len = len; | |
2a8b7416 JM |
3530 | event.rx_mgmt.datarate = datarate; |
3531 | event.rx_mgmt.ssi_signal = ssi_signal; | |
f8b1f695 | 3532 | wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); |
0915d02c JM |
3533 | break; |
3534 | case WLAN_FC_TYPE_CTRL: | |
3535 | /* can only get here with PS-Poll frames */ | |
3536 | wpa_printf(MSG_DEBUG, "CTRL"); | |
0d9fc3d8 | 3537 | from_unknown_sta(drv, buf, len); |
0915d02c JM |
3538 | break; |
3539 | case WLAN_FC_TYPE_DATA: | |
0d9fc3d8 | 3540 | from_unknown_sta(drv, buf, len); |
0915d02c JM |
3541 | break; |
3542 | } | |
3543 | } | |
3544 | ||
3545 | ||
3546 | static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) | |
3547 | { | |
3548 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
3549 | int len; | |
3550 | unsigned char buf[3000]; | |
3551 | struct ieee80211_radiotap_iterator iter; | |
3552 | int ret; | |
2a8b7416 | 3553 | int datarate = 0, ssi_signal = 0; |
4b9841d3 | 3554 | int injected = 0, failed = 0, rxflags = 0; |
0915d02c JM |
3555 | |
3556 | len = recv(sock, buf, sizeof(buf), 0); | |
3557 | if (len < 0) { | |
3558 | perror("recv"); | |
3559 | return; | |
3560 | } | |
3561 | ||
3562 | if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { | |
3563 | printf("received invalid radiotap frame\n"); | |
3564 | return; | |
3565 | } | |
3566 | ||
0915d02c JM |
3567 | while (1) { |
3568 | ret = ieee80211_radiotap_iterator_next(&iter); | |
3569 | if (ret == -ENOENT) | |
3570 | break; | |
3571 | if (ret) { | |
3572 | printf("received invalid radiotap frame (%d)\n", ret); | |
3573 | return; | |
3574 | } | |
3575 | switch (iter.this_arg_index) { | |
3576 | case IEEE80211_RADIOTAP_FLAGS: | |
3577 | if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) | |
3578 | len -= 4; | |
3579 | break; | |
3580 | case IEEE80211_RADIOTAP_RX_FLAGS: | |
3581 | rxflags = 1; | |
3582 | break; | |
3583 | case IEEE80211_RADIOTAP_TX_FLAGS: | |
3584 | injected = 1; | |
3585 | failed = le_to_host16((*(uint16_t *) iter.this_arg)) & | |
3586 | IEEE80211_RADIOTAP_F_TX_FAIL; | |
3587 | break; | |
3588 | case IEEE80211_RADIOTAP_DATA_RETRIES: | |
3589 | break; | |
3590 | case IEEE80211_RADIOTAP_CHANNEL: | |
2a8b7416 | 3591 | /* TODO: convert from freq/flags to channel number */ |
0915d02c JM |
3592 | break; |
3593 | case IEEE80211_RADIOTAP_RATE: | |
2a8b7416 | 3594 | datarate = *iter.this_arg * 5; |
0915d02c JM |
3595 | break; |
3596 | case IEEE80211_RADIOTAP_DB_ANTSIGNAL: | |
2a8b7416 | 3597 | ssi_signal = *iter.this_arg; |
0915d02c JM |
3598 | break; |
3599 | } | |
3600 | } | |
3601 | ||
3602 | if (rxflags && injected) | |
3603 | return; | |
3604 | ||
3605 | if (!injected) | |
4b9841d3 | 3606 | handle_frame(drv, buf + iter.max_length, |
2a8b7416 | 3607 | len - iter.max_length, datarate, ssi_signal); |
0915d02c | 3608 | else |
4b9841d3 JM |
3609 | handle_tx_callback(drv->ctx, buf + iter.max_length, |
3610 | len - iter.max_length, !failed); | |
0915d02c JM |
3611 | } |
3612 | ||
3613 | ||
3614 | /* | |
3615 | * we post-process the filter code later and rewrite | |
3616 | * this to the offset to the last instruction | |
3617 | */ | |
3618 | #define PASS 0xFF | |
3619 | #define FAIL 0xFE | |
3620 | ||
3621 | static struct sock_filter msock_filter_insns[] = { | |
3622 | /* | |
3623 | * do a little-endian load of the radiotap length field | |
3624 | */ | |
3625 | /* load lower byte into A */ | |
3626 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), | |
3627 | /* put it into X (== index register) */ | |
3628 | BPF_STMT(BPF_MISC| BPF_TAX, 0), | |
3629 | /* load upper byte into A */ | |
3630 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), | |
3631 | /* left-shift it by 8 */ | |
3632 | BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), | |
3633 | /* or with X */ | |
3634 | BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), | |
3635 | /* put result into X */ | |
3636 | BPF_STMT(BPF_MISC| BPF_TAX, 0), | |
3637 | ||
3638 | /* | |
3639 | * Allow management frames through, this also gives us those | |
3640 | * management frames that we sent ourselves with status | |
3641 | */ | |
3642 | /* load the lower byte of the IEEE 802.11 frame control field */ | |
3643 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
3644 | /* mask off frame type and version */ | |
3645 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), | |
3646 | /* accept frame if it's both 0, fall through otherwise */ | |
3647 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), | |
3648 | ||
3649 | /* | |
3650 | * TODO: add a bit to radiotap RX flags that indicates | |
3651 | * that the sending station is not associated, then | |
3652 | * add a filter here that filters on our DA and that flag | |
3653 | * to allow us to deauth frames to that bad station. | |
3654 | * | |
65ae1afd | 3655 | * For now allow all To DS data frames through. |
0915d02c | 3656 | */ |
65ae1afd HS |
3657 | /* load the IEEE 802.11 frame control field */ |
3658 | BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), | |
3659 | /* mask off frame type, version and DS status */ | |
3660 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), | |
3661 | /* accept frame if version 0, type 2 and To DS, fall through otherwise | |
3662 | */ | |
3663 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), | |
0915d02c JM |
3664 | |
3665 | #if 0 | |
3666 | /* | |
fbbfcbac | 3667 | * drop non-data frames |
0915d02c JM |
3668 | */ |
3669 | /* load the lower byte of the frame control field */ | |
3670 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
3671 | /* mask off QoS bit */ | |
3672 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), | |
3673 | /* drop non-data frames */ | |
3674 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), | |
fbbfcbac | 3675 | #endif |
0915d02c | 3676 | /* load the upper byte of the frame control field */ |
fbbfcbac | 3677 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), |
0915d02c JM |
3678 | /* mask off toDS/fromDS */ |
3679 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), | |
fbbfcbac FF |
3680 | /* accept WDS frames */ |
3681 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), | |
0915d02c JM |
3682 | |
3683 | /* | |
3684 | * add header length to index | |
3685 | */ | |
3686 | /* load the lower byte of the frame control field */ | |
3687 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
3688 | /* mask off QoS bit */ | |
3689 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), | |
3690 | /* right shift it by 6 to give 0 or 2 */ | |
3691 | BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), | |
3692 | /* add data frame header length */ | |
3693 | BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), | |
3694 | /* add index, was start of 802.11 header */ | |
3695 | BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), | |
3696 | /* move to index, now start of LL header */ | |
3697 | BPF_STMT(BPF_MISC | BPF_TAX, 0), | |
3698 | ||
3699 | /* | |
3700 | * Accept empty data frames, we use those for | |
3701 | * polling activity. | |
3702 | */ | |
3703 | BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), | |
3704 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), | |
3705 | ||
3706 | /* | |
3707 | * Accept EAPOL frames | |
3708 | */ | |
3709 | BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), | |
3710 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), | |
3711 | BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), | |
3712 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), | |
3713 | ||
3714 | /* keep these last two statements or change the code below */ | |
3715 | /* return 0 == "DROP" */ | |
3716 | BPF_STMT(BPF_RET | BPF_K, 0), | |
3717 | /* return ~0 == "keep all" */ | |
3718 | BPF_STMT(BPF_RET | BPF_K, ~0), | |
3719 | }; | |
3720 | ||
3721 | static struct sock_fprog msock_filter = { | |
3722 | .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), | |
3723 | .filter = msock_filter_insns, | |
3724 | }; | |
3725 | ||
3726 | ||
3727 | static int add_monitor_filter(int s) | |
3728 | { | |
3729 | int idx; | |
3730 | ||
3731 | /* rewrite all PASS/FAIL jump offsets */ | |
3732 | for (idx = 0; idx < msock_filter.len; idx++) { | |
3733 | struct sock_filter *insn = &msock_filter_insns[idx]; | |
3734 | ||
3735 | if (BPF_CLASS(insn->code) == BPF_JMP) { | |
3736 | if (insn->code == (BPF_JMP|BPF_JA)) { | |
3737 | if (insn->k == PASS) | |
3738 | insn->k = msock_filter.len - idx - 2; | |
3739 | else if (insn->k == FAIL) | |
3740 | insn->k = msock_filter.len - idx - 3; | |
3741 | } | |
3742 | ||
3743 | if (insn->jt == PASS) | |
3744 | insn->jt = msock_filter.len - idx - 2; | |
3745 | else if (insn->jt == FAIL) | |
3746 | insn->jt = msock_filter.len - idx - 3; | |
3747 | ||
3748 | if (insn->jf == PASS) | |
3749 | insn->jf = msock_filter.len - idx - 2; | |
3750 | else if (insn->jf == FAIL) | |
3751 | insn->jf = msock_filter.len - idx - 3; | |
3752 | } | |
3753 | } | |
3754 | ||
3755 | if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, | |
3756 | &msock_filter, sizeof(msock_filter))) { | |
3757 | perror("SO_ATTACH_FILTER"); | |
3758 | return -1; | |
3759 | } | |
3760 | ||
3761 | return 0; | |
3762 | } | |
3763 | ||
3764 | ||
460456f8 JM |
3765 | static void nl80211_remove_monitor_interface( |
3766 | struct wpa_driver_nl80211_data *drv) | |
3767 | { | |
3768 | if (drv->monitor_ifidx >= 0) { | |
3769 | nl80211_remove_iface(drv, drv->monitor_ifidx); | |
3770 | drv->monitor_ifidx = -1; | |
3771 | } | |
504e905c JM |
3772 | if (drv->monitor_sock >= 0) { |
3773 | eloop_unregister_read_sock(drv->monitor_sock); | |
3774 | close(drv->monitor_sock); | |
3775 | drv->monitor_sock = -1; | |
3776 | } | |
460456f8 JM |
3777 | } |
3778 | ||
3779 | ||
0915d02c JM |
3780 | static int |
3781 | nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) | |
3782 | { | |
3783 | char buf[IFNAMSIZ]; | |
3784 | struct sockaddr_ll ll; | |
3785 | int optval; | |
3786 | socklen_t optlen; | |
0915d02c | 3787 | |
a2e40bb6 | 3788 | snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); |
0915d02c JM |
3789 | buf[IFNAMSIZ - 1] = '\0'; |
3790 | ||
3791 | drv->monitor_ifidx = | |
fbbfcbac FF |
3792 | nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, |
3793 | 0); | |
0915d02c JM |
3794 | |
3795 | if (drv->monitor_ifidx < 0) | |
3796 | return -1; | |
3797 | ||
34f2f814 | 3798 | if (linux_set_iface_flags(drv->ioctl_sock, buf, 1)) |
0915d02c | 3799 | goto error; |
0915d02c JM |
3800 | |
3801 | memset(&ll, 0, sizeof(ll)); | |
3802 | ll.sll_family = AF_PACKET; | |
3803 | ll.sll_ifindex = drv->monitor_ifidx; | |
3804 | drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); | |
3805 | if (drv->monitor_sock < 0) { | |
3806 | perror("socket[PF_PACKET,SOCK_RAW]"); | |
3807 | goto error; | |
3808 | } | |
3809 | ||
3810 | if (add_monitor_filter(drv->monitor_sock)) { | |
3811 | wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " | |
3812 | "interface; do filtering in user space"); | |
3813 | /* This works, but will cost in performance. */ | |
3814 | } | |
3815 | ||
2135f224 | 3816 | if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { |
0915d02c JM |
3817 | perror("monitor socket bind"); |
3818 | goto error; | |
3819 | } | |
3820 | ||
3821 | optlen = sizeof(optval); | |
3822 | optval = 20; | |
3823 | if (setsockopt | |
3824 | (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { | |
3825 | perror("Failed to set socket priority"); | |
3826 | goto error; | |
3827 | } | |
3828 | ||
3829 | if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, | |
3830 | drv, NULL)) { | |
3831 | printf("Could not register monitor read socket\n"); | |
3832 | goto error; | |
3833 | } | |
3834 | ||
3835 | return 0; | |
3836 | error: | |
460456f8 | 3837 | nl80211_remove_monitor_interface(drv); |
0915d02c JM |
3838 | return -1; |
3839 | } | |
3840 | ||
db149ac9 JM |
3841 | |
3842 | static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; | |
3843 | ||
3844 | static int wpa_driver_nl80211_hapd_send_eapol( | |
3845 | void *priv, const u8 *addr, const u8 *data, | |
3846 | size_t data_len, int encrypt, const u8 *own_addr) | |
3847 | { | |
a2e40bb6 FF |
3848 | struct i802_bss *bss = priv; |
3849 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
db149ac9 JM |
3850 | struct ieee80211_hdr *hdr; |
3851 | size_t len; | |
3852 | u8 *pos; | |
3853 | int res; | |
3854 | #if 0 /* FIX */ | |
0de39516 | 3855 | int qos = sta->flags & WPA_STA_WMM; |
db149ac9 JM |
3856 | #else |
3857 | int qos = 0; | |
3858 | #endif | |
3859 | ||
3860 | len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + | |
3861 | data_len; | |
3862 | hdr = os_zalloc(len); | |
3863 | if (hdr == NULL) { | |
3864 | printf("malloc() failed for i802_send_data(len=%lu)\n", | |
3865 | (unsigned long) len); | |
3866 | return -1; | |
3867 | } | |
3868 | ||
3869 | hdr->frame_control = | |
3870 | IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); | |
3871 | hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); | |
3872 | if (encrypt) | |
3873 | hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); | |
3874 | #if 0 /* To be enabled if qos determination is added above */ | |
3875 | if (qos) { | |
3876 | hdr->frame_control |= | |
3877 | host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); | |
3878 | } | |
3879 | #endif | |
3880 | ||
3881 | memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); | |
3882 | memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); | |
3883 | memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); | |
3884 | pos = (u8 *) (hdr + 1); | |
3885 | ||
3886 | #if 0 /* To be enabled if qos determination is added above */ | |
3887 | if (qos) { | |
3888 | /* add an empty QoS header if needed */ | |
3889 | pos[0] = 0; | |
3890 | pos[1] = 0; | |
3891 | pos += 2; | |
3892 | } | |
3893 | #endif | |
3894 | ||
3895 | memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); | |
3896 | pos += sizeof(rfc1042_header); | |
3897 | WPA_PUT_BE16(pos, ETH_P_PAE); | |
3898 | pos += 2; | |
3899 | memcpy(pos, data, data_len); | |
3900 | ||
3901 | res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt); | |
3902 | if (res < 0) { | |
3903 | wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " | |
3904 | "failed: %d (%s)", | |
3905 | (unsigned long) len, errno, strerror(errno)); | |
3906 | } | |
7bf12757 | 3907 | os_free(hdr); |
db149ac9 JM |
3908 | |
3909 | return res; | |
3910 | } | |
3911 | ||
a8d6ffa4 | 3912 | |
7e76ee9c JM |
3913 | static u32 sta_flags_nl80211(int flags) |
3914 | { | |
3915 | u32 f = 0; | |
3916 | ||
0de39516 | 3917 | if (flags & WPA_STA_AUTHORIZED) |
7e76ee9c | 3918 | f |= BIT(NL80211_STA_FLAG_AUTHORIZED); |
0de39516 | 3919 | if (flags & WPA_STA_WMM) |
7e76ee9c | 3920 | f |= BIT(NL80211_STA_FLAG_WME); |
0de39516 | 3921 | if (flags & WPA_STA_SHORT_PREAMBLE) |
7e76ee9c | 3922 | f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); |
0de39516 | 3923 | if (flags & WPA_STA_MFP) |
7e76ee9c JM |
3924 | f |= BIT(NL80211_STA_FLAG_MFP); |
3925 | ||
3926 | return f; | |
3927 | } | |
3928 | ||
3929 | ||
3234cba4 JM |
3930 | static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, |
3931 | int total_flags, | |
4c32757d | 3932 | int flags_or, int flags_and) |
a8d6ffa4 | 3933 | { |
a2e40bb6 FF |
3934 | struct i802_bss *bss = priv; |
3935 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
a8d6ffa4 | 3936 | struct nl_msg *msg, *flags = NULL; |
7e76ee9c | 3937 | struct nl80211_sta_flag_update upd; |
a8d6ffa4 JM |
3938 | |
3939 | msg = nlmsg_alloc(); | |
3940 | if (!msg) | |
3941 | return -ENOMEM; | |
3942 | ||
3943 | flags = nlmsg_alloc(); | |
3944 | if (!flags) { | |
3945 | nlmsg_free(msg); | |
3946 | return -ENOMEM; | |
3947 | } | |
3948 | ||
3949 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
3950 | 0, NL80211_CMD_SET_STATION, 0); | |
3951 | ||
3952 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
3234cba4 | 3953 | if_nametoindex(bss->ifname)); |
a8d6ffa4 JM |
3954 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
3955 | ||
7e76ee9c JM |
3956 | /* |
3957 | * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This | |
3958 | * can be removed eventually. | |
3959 | */ | |
0de39516 | 3960 | if (total_flags & WPA_STA_AUTHORIZED) |
a8d6ffa4 JM |
3961 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED); |
3962 | ||
0de39516 | 3963 | if (total_flags & WPA_STA_WMM) |
a8d6ffa4 JM |
3964 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME); |
3965 | ||
0de39516 | 3966 | if (total_flags & WPA_STA_SHORT_PREAMBLE) |
a8d6ffa4 JM |
3967 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE); |
3968 | ||
0de39516 | 3969 | if (total_flags & WPA_STA_MFP) |
a8d6ffa4 JM |
3970 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP); |
3971 | ||
3972 | if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags)) | |
3973 | goto nla_put_failure; | |
3974 | ||
7e76ee9c JM |
3975 | os_memset(&upd, 0, sizeof(upd)); |
3976 | upd.mask = sta_flags_nl80211(flags_or | ~flags_and); | |
3977 | upd.set = sta_flags_nl80211(flags_or); | |
3978 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
3979 | ||
a8d6ffa4 JM |
3980 | nlmsg_free(flags); |
3981 | ||
3982 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
3983 | nla_put_failure: | |
3984 | nlmsg_free(flags); | |
3985 | return -ENOBUFS; | |
3986 | } | |
3987 | ||
0915d02c | 3988 | |
1581b38b JM |
3989 | static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, |
3990 | struct wpa_driver_associate_params *params) | |
3991 | { | |
046b26a2 JM |
3992 | if (params->p2p) |
3993 | wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " | |
3994 | "group (GO)"); | |
a2e40bb6 | 3995 | if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode) || |
f019981a | 3996 | wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) { |
460456f8 | 3997 | nl80211_remove_monitor_interface(drv); |
1581b38b | 3998 | return -1; |
0915d02c | 3999 | } |
1581b38b JM |
4000 | |
4001 | /* TODO: setup monitor interface (and add code somewhere to remove this | |
4002 | * when AP mode is stopped; associate with mode != 2 or drv_deinit) */ | |
1581b38b JM |
4003 | |
4004 | return 0; | |
4005 | } | |
1581b38b JM |
4006 | |
4007 | ||
5cc4d64b JM |
4008 | static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) |
4009 | { | |
4010 | struct nl_msg *msg; | |
4011 | int ret = -1; | |
4012 | ||
4013 | msg = nlmsg_alloc(); | |
4014 | if (!msg) | |
4015 | return -1; | |
4016 | ||
4017 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
4018 | NL80211_CMD_LEAVE_IBSS, 0); | |
4019 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4020 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4021 | msg = NULL; | |
4022 | if (ret) { | |
4023 | wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " | |
4024 | "(%s)", ret, strerror(-ret)); | |
4025 | goto nla_put_failure; | |
4026 | } | |
4027 | ||
4028 | ret = 0; | |
4029 | wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); | |
4030 | ||
4031 | nla_put_failure: | |
4032 | nlmsg_free(msg); | |
4033 | return ret; | |
4034 | } | |
4035 | ||
4036 | ||
4037 | static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, | |
4038 | struct wpa_driver_associate_params *params) | |
4039 | { | |
4040 | struct nl_msg *msg; | |
4041 | int ret = -1; | |
4042 | int count = 0; | |
4043 | ||
4044 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); | |
4045 | ||
a2e40bb6 | 4046 | if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode)) { |
5cc4d64b JM |
4047 | wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " |
4048 | "IBSS mode"); | |
4049 | return -1; | |
4050 | } | |
4051 | ||
4052 | retry: | |
4053 | msg = nlmsg_alloc(); | |
4054 | if (!msg) | |
4055 | return -1; | |
4056 | ||
4057 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
4058 | NL80211_CMD_JOIN_IBSS, 0); | |
4059 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4060 | ||
4061 | if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) | |
4062 | goto nla_put_failure; | |
4063 | ||
4064 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
4065 | params->ssid, params->ssid_len); | |
4066 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
4067 | params->ssid); | |
4068 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
4069 | drv->ssid_len = params->ssid_len; | |
4070 | ||
4071 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
4072 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
4073 | ||
4074 | ret = nl80211_set_conn_keys(params, msg); | |
4075 | if (ret) | |
4076 | goto nla_put_failure; | |
4077 | ||
a95795ad JM |
4078 | if (params->wpa_ie) { |
4079 | wpa_hexdump(MSG_DEBUG, | |
4080 | " * Extra IEs for Beacon/Probe Response frames", | |
4081 | params->wpa_ie, params->wpa_ie_len); | |
4082 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
4083 | params->wpa_ie); | |
4084 | } | |
4085 | ||
5cc4d64b JM |
4086 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
4087 | msg = NULL; | |
4088 | if (ret) { | |
4089 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", | |
4090 | ret, strerror(-ret)); | |
4091 | count++; | |
4092 | if (ret == -EALREADY && count == 1) { | |
4093 | wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " | |
4094 | "forced leave"); | |
4095 | nl80211_leave_ibss(drv); | |
4096 | nlmsg_free(msg); | |
4097 | goto retry; | |
4098 | } | |
4099 | ||
4100 | goto nla_put_failure; | |
4101 | } | |
4102 | ret = 0; | |
4103 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); | |
4104 | ||
4105 | nla_put_failure: | |
4106 | nlmsg_free(msg); | |
4107 | return ret; | |
4108 | } | |
4109 | ||
4110 | ||
cfaab580 ZY |
4111 | static int wpa_driver_nl80211_connect( |
4112 | struct wpa_driver_nl80211_data *drv, | |
4113 | struct wpa_driver_associate_params *params) | |
4114 | { | |
4115 | struct nl_msg *msg; | |
4116 | enum nl80211_auth_type type; | |
4117 | int ret = 0; | |
4118 | ||
4119 | msg = nlmsg_alloc(); | |
4120 | if (!msg) | |
4121 | return -1; | |
4122 | ||
4123 | wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); | |
4124 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
4125 | NL80211_CMD_CONNECT, 0); | |
4126 | ||
4127 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4128 | if (params->bssid) { | |
4129 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
4130 | MAC2STR(params->bssid)); | |
4131 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
4132 | } | |
4133 | if (params->freq) { | |
4134 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
4135 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
4136 | } | |
4137 | if (params->ssid) { | |
4138 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
4139 | params->ssid, params->ssid_len); | |
4140 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
4141 | params->ssid); | |
4142 | if (params->ssid_len > sizeof(drv->ssid)) | |
4143 | goto nla_put_failure; | |
4144 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
4145 | drv->ssid_len = params->ssid_len; | |
4146 | } | |
4147 | wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); | |
4148 | if (params->wpa_ie) | |
4149 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
4150 | params->wpa_ie); | |
4151 | ||
abd9fafa | 4152 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) |
cfaab580 | 4153 | type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
abd9fafa | 4154 | else if (params->auth_alg & WPA_AUTH_ALG_SHARED) |
cfaab580 | 4155 | type = NL80211_AUTHTYPE_SHARED_KEY; |
abd9fafa | 4156 | else if (params->auth_alg & WPA_AUTH_ALG_LEAP) |
cfaab580 | 4157 | type = NL80211_AUTHTYPE_NETWORK_EAP; |
abd9fafa | 4158 | else if (params->auth_alg & WPA_AUTH_ALG_FT) |
cfaab580 ZY |
4159 | type = NL80211_AUTHTYPE_FT; |
4160 | else | |
4161 | goto nla_put_failure; | |
4162 | ||
4163 | wpa_printf(MSG_DEBUG, " * Auth Type %d", type); | |
4164 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); | |
4165 | ||
4166 | if (params->wpa_ie && params->wpa_ie_len) { | |
4167 | enum nl80211_wpa_versions ver; | |
4168 | ||
4169 | if (params->wpa_ie[0] == WLAN_EID_RSN) | |
4170 | ver = NL80211_WPA_VERSION_2; | |
4171 | else | |
4172 | ver = NL80211_WPA_VERSION_1; | |
4173 | ||
4174 | wpa_printf(MSG_DEBUG, " * WPA Version %d", ver); | |
4175 | NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); | |
4176 | } | |
4177 | ||
4178 | if (params->pairwise_suite != CIPHER_NONE) { | |
c1bb3e0a | 4179 | int cipher; |
cfaab580 ZY |
4180 | |
4181 | switch (params->pairwise_suite) { | |
4182 | case CIPHER_WEP40: | |
4183 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
4184 | break; | |
4185 | case CIPHER_WEP104: | |
4186 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
4187 | break; | |
4188 | case CIPHER_CCMP: | |
4189 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
4190 | break; | |
4191 | case CIPHER_TKIP: | |
4192 | default: | |
4193 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
4194 | break; | |
4195 | } | |
4196 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); | |
4197 | } | |
4198 | ||
4199 | if (params->group_suite != CIPHER_NONE) { | |
c1bb3e0a | 4200 | int cipher; |
cfaab580 ZY |
4201 | |
4202 | switch (params->group_suite) { | |
4203 | case CIPHER_WEP40: | |
4204 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
4205 | break; | |
4206 | case CIPHER_WEP104: | |
4207 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
4208 | break; | |
4209 | case CIPHER_CCMP: | |
4210 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
4211 | break; | |
4212 | case CIPHER_TKIP: | |
4213 | default: | |
4214 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
4215 | break; | |
4216 | } | |
4217 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); | |
4218 | } | |
4219 | ||
4220 | if (params->key_mgmt_suite == KEY_MGMT_802_1X || | |
4221 | params->key_mgmt_suite == KEY_MGMT_PSK) { | |
4222 | int mgmt = WLAN_AKM_SUITE_PSK; | |
4223 | ||
4224 | switch (params->key_mgmt_suite) { | |
4225 | case KEY_MGMT_802_1X: | |
4226 | mgmt = WLAN_AKM_SUITE_8021X; | |
4227 | break; | |
4228 | case KEY_MGMT_PSK: | |
4229 | default: | |
4230 | mgmt = WLAN_AKM_SUITE_PSK; | |
4231 | break; | |
4232 | } | |
4233 | NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); | |
4234 | } | |
4235 | ||
4236 | ret = nl80211_set_conn_keys(params, msg); | |
4237 | if (ret) | |
4238 | goto nla_put_failure; | |
4239 | ||
4240 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4241 | msg = NULL; | |
4242 | if (ret) { | |
4243 | wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " | |
4244 | "(%s)", ret, strerror(-ret)); | |
4245 | goto nla_put_failure; | |
4246 | } | |
4247 | ret = 0; | |
4248 | wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); | |
4249 | ||
4250 | nla_put_failure: | |
4251 | nlmsg_free(msg); | |
4252 | return ret; | |
4253 | ||
4254 | } | |
4255 | ||
4256 | ||
c2a04078 JM |
4257 | static int wpa_driver_nl80211_associate( |
4258 | void *priv, struct wpa_driver_associate_params *params) | |
4259 | { | |
a2e40bb6 FF |
4260 | struct i802_bss *bss = priv; |
4261 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c2a04078 JM |
4262 | int ret = -1; |
4263 | struct nl_msg *msg; | |
4264 | ||
5cc4d64b | 4265 | if (params->mode == IEEE80211_MODE_AP) |
1581b38b | 4266 | return wpa_driver_nl80211_ap(drv, params); |
1581b38b | 4267 | |
5cc4d64b JM |
4268 | if (params->mode == IEEE80211_MODE_IBSS) |
4269 | return wpa_driver_nl80211_ibss(drv, params); | |
4270 | ||
4a867032 | 4271 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { |
a2e40bb6 | 4272 | if (wpa_driver_nl80211_set_mode(priv, params->mode) < 0) |
4a867032 | 4273 | return -1; |
cfaab580 | 4274 | return wpa_driver_nl80211_connect(drv, params); |
4a867032 | 4275 | } |
cfaab580 | 4276 | |
c2a04078 JM |
4277 | drv->associated = 0; |
4278 | ||
4279 | msg = nlmsg_alloc(); | |
4280 | if (!msg) | |
4281 | return -1; | |
4282 | ||
4283 | wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", | |
4284 | drv->ifindex); | |
4285 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
4286 | NL80211_CMD_ASSOCIATE, 0); | |
4287 | ||
4288 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4289 | if (params->bssid) { | |
4290 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
4291 | MAC2STR(params->bssid)); | |
4292 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
4293 | } | |
4294 | if (params->freq) { | |
4295 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
4296 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
4832ecd7 JM |
4297 | drv->assoc_freq = params->freq; |
4298 | } else | |
4299 | drv->assoc_freq = 0; | |
c2a04078 JM |
4300 | if (params->ssid) { |
4301 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
4302 | params->ssid, params->ssid_len); | |
4303 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
4304 | params->ssid); | |
fd05d64e JM |
4305 | if (params->ssid_len > sizeof(drv->ssid)) |
4306 | goto nla_put_failure; | |
4307 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
4308 | drv->ssid_len = params->ssid_len; | |
c2a04078 JM |
4309 | } |
4310 | wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); | |
4311 | if (params->wpa_ie) | |
4312 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
4313 | params->wpa_ie); | |
4314 | ||
e572fa33 JM |
4315 | #ifdef CONFIG_IEEE80211W |
4316 | if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) | |
4317 | NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); | |
4318 | #endif /* CONFIG_IEEE80211W */ | |
4319 | ||
01652550 JM |
4320 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); |
4321 | ||
62fa124c JM |
4322 | if (params->prev_bssid) { |
4323 | wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, | |
4324 | MAC2STR(params->prev_bssid)); | |
4325 | NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, | |
4326 | params->prev_bssid); | |
4327 | } | |
4328 | ||
046b26a2 JM |
4329 | if (params->p2p) |
4330 | wpa_printf(MSG_DEBUG, " * P2P group"); | |
4331 | ||
c2a04078 JM |
4332 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
4333 | msg = NULL; | |
4334 | if (ret) { | |
4335 | wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d " | |
4336 | "(%s)", ret, strerror(-ret)); | |
8856462d | 4337 | nl80211_dump_scan(drv); |
c2a04078 JM |
4338 | goto nla_put_failure; |
4339 | } | |
4340 | ret = 0; | |
4341 | wpa_printf(MSG_DEBUG, "nl80211: Association request send " | |
4342 | "successfully"); | |
4343 | ||
4344 | nla_put_failure: | |
4345 | nlmsg_free(msg); | |
4346 | return ret; | |
4347 | } | |
3f5285e8 JM |
4348 | |
4349 | ||
ad1e68e6 JM |
4350 | static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, |
4351 | int ifindex, int mode) | |
3f5285e8 | 4352 | { |
3f5285e8 | 4353 | struct nl_msg *msg; |
ad1e68e6 JM |
4354 | int ret = -ENOBUFS; |
4355 | ||
4356 | msg = nlmsg_alloc(); | |
4357 | if (!msg) | |
4358 | return -ENOMEM; | |
4359 | ||
4360 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
4361 | 0, NL80211_CMD_SET_INTERFACE, 0); | |
4362 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
4363 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); | |
4364 | ||
4365 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4366 | if (!ret) | |
4367 | return 0; | |
4368 | nla_put_failure: | |
4369 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" | |
4370 | " %d (%s)", ifindex, mode, ret, strerror(-ret)); | |
4371 | return ret; | |
4372 | } | |
4373 | ||
4374 | ||
4375 | static int wpa_driver_nl80211_set_mode(void *priv, int mode) | |
4376 | { | |
a2e40bb6 FF |
4377 | struct i802_bss *bss = priv; |
4378 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
ad1e68e6 | 4379 | int ret = -1; |
1581b38b | 4380 | int nlmode; |
26af9dca | 4381 | int i; |
1581b38b JM |
4382 | |
4383 | switch (mode) { | |
4384 | case 0: | |
4385 | nlmode = NL80211_IFTYPE_STATION; | |
4386 | break; | |
4387 | case 1: | |
4388 | nlmode = NL80211_IFTYPE_ADHOC; | |
4389 | break; | |
4390 | case 2: | |
4391 | nlmode = NL80211_IFTYPE_AP; | |
4392 | break; | |
4393 | default: | |
4394 | return -1; | |
4395 | } | |
3f5285e8 | 4396 | |
ad1e68e6 JM |
4397 | if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) { |
4398 | drv->nlmode = nlmode; | |
460456f8 JM |
4399 | ret = 0; |
4400 | goto done; | |
ad1e68e6 | 4401 | } |
3f5285e8 | 4402 | |
460456f8 | 4403 | if (nlmode == drv->nlmode) { |
c6e8e8e4 JM |
4404 | wpa_printf(MSG_DEBUG, "nl80211: Interface already in " |
4405 | "requested mode - ignore error"); | |
460456f8 JM |
4406 | ret = 0; |
4407 | goto done; /* Already in the requested mode */ | |
4408 | } | |
3f5285e8 | 4409 | |
3f5285e8 JM |
4410 | /* mac80211 doesn't allow mode changes while the device is up, so |
4411 | * take the device down, try to set the mode again, and bring the | |
4412 | * device back up. | |
4413 | */ | |
26af9dca JM |
4414 | wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " |
4415 | "interface down"); | |
4416 | for (i = 0; i < 10; i++) { | |
4417 | if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0) == | |
4418 | 0) { | |
4419 | /* Try to set the mode again while the interface is | |
4420 | * down */ | |
4421 | ret = nl80211_set_mode(drv, drv->ifindex, nlmode); | |
4422 | if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, | |
4423 | 1)) | |
4424 | ret = -1; | |
4425 | if (!ret) | |
4426 | break; | |
4427 | } else | |
4428 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set " | |
4429 | "interface down"); | |
4430 | os_sleep(0, 100000); | |
3f5285e8 JM |
4431 | } |
4432 | ||
c6e8e8e4 JM |
4433 | if (!ret) { |
4434 | wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " | |
4435 | "interface is down"); | |
ad1e68e6 | 4436 | drv->nlmode = nlmode; |
c6e8e8e4 | 4437 | } |
ad1e68e6 | 4438 | |
460456f8 | 4439 | done: |
460456f8 JM |
4440 | if (!ret && nlmode == NL80211_IFTYPE_AP) { |
4441 | /* Setup additional AP mode functionality if needed */ | |
4442 | if (drv->monitor_ifidx < 0 && | |
4443 | nl80211_create_monitor_interface(drv)) | |
4444 | return -1; | |
4445 | } else if (!ret && nlmode != NL80211_IFTYPE_AP) { | |
4446 | /* Remove additional AP mode functionality */ | |
4447 | nl80211_remove_monitor_interface(drv); | |
a2e40bb6 | 4448 | bss->beacon_set = 0; |
460456f8 | 4449 | } |
460456f8 | 4450 | |
c6e8e8e4 JM |
4451 | if (ret) |
4452 | wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " | |
4453 | "from %d failed", nlmode, drv->nlmode); | |
4454 | ||
3f5285e8 JM |
4455 | return ret; |
4456 | } | |
4457 | ||
4458 | ||
3f5285e8 JM |
4459 | static int wpa_driver_nl80211_get_capa(void *priv, |
4460 | struct wpa_driver_capa *capa) | |
4461 | { | |
a2e40bb6 FF |
4462 | struct i802_bss *bss = priv; |
4463 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 JM |
4464 | if (!drv->has_capability) |
4465 | return -1; | |
4466 | os_memcpy(capa, &drv->capa, sizeof(*capa)); | |
4467 | return 0; | |
4468 | } | |
4469 | ||
4470 | ||
4471 | static int wpa_driver_nl80211_set_operstate(void *priv, int state) | |
4472 | { | |
a2e40bb6 FF |
4473 | struct i802_bss *bss = priv; |
4474 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 JM |
4475 | |
4476 | wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", | |
4477 | __func__, drv->operstate, state, state ? "UP" : "DORMANT"); | |
4478 | drv->operstate = state; | |
08063178 | 4479 | return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1, |
e2d02c29 | 4480 | state ? IF_OPER_UP : IF_OPER_DORMANT); |
3f5285e8 JM |
4481 | } |
4482 | ||
01652550 JM |
4483 | |
4484 | static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) | |
4485 | { | |
a2e40bb6 FF |
4486 | struct i802_bss *bss = priv; |
4487 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
01652550 JM |
4488 | struct nl_msg *msg; |
4489 | struct nl80211_sta_flag_update upd; | |
4490 | ||
4491 | msg = nlmsg_alloc(); | |
4492 | if (!msg) | |
4493 | return -ENOMEM; | |
4494 | ||
4495 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
4496 | 0, NL80211_CMD_SET_STATION, 0); | |
4497 | ||
4498 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 4499 | if_nametoindex(bss->ifname)); |
01652550 JM |
4500 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); |
4501 | ||
4502 | os_memset(&upd, 0, sizeof(upd)); | |
4503 | upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); | |
4504 | if (authorized) | |
4505 | upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); | |
4506 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
4507 | ||
4508 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
4509 | nla_put_failure: | |
4510 | return -ENOBUFS; | |
4511 | } | |
4512 | ||
3f5285e8 | 4513 | |
c5121837 JM |
4514 | #ifdef HOSTAPD |
4515 | ||
c5121837 JM |
4516 | static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) |
4517 | { | |
4518 | int i; | |
4519 | int *old; | |
4520 | ||
4521 | wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", | |
4522 | ifidx); | |
4523 | for (i = 0; i < drv->num_if_indices; i++) { | |
4524 | if (drv->if_indices[i] == 0) { | |
4525 | drv->if_indices[i] = ifidx; | |
4526 | return; | |
4527 | } | |
4528 | } | |
4529 | ||
4530 | if (drv->if_indices != drv->default_if_indices) | |
4531 | old = drv->if_indices; | |
4532 | else | |
4533 | old = NULL; | |
4534 | ||
7bf12757 JM |
4535 | drv->if_indices = os_realloc(old, |
4536 | sizeof(int) * (drv->num_if_indices + 1)); | |
c5121837 JM |
4537 | if (!drv->if_indices) { |
4538 | if (!old) | |
4539 | drv->if_indices = drv->default_if_indices; | |
4540 | else | |
4541 | drv->if_indices = old; | |
4542 | wpa_printf(MSG_ERROR, "Failed to reallocate memory for " | |
4543 | "interfaces"); | |
4544 | wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); | |
4545 | return; | |
0ab7a701 B |
4546 | } else if (!old) |
4547 | os_memcpy(drv->if_indices, drv->default_if_indices, | |
4548 | sizeof(drv->default_if_indices)); | |
c5121837 JM |
4549 | drv->if_indices[drv->num_if_indices] = ifidx; |
4550 | drv->num_if_indices++; | |
4551 | } | |
4552 | ||
4553 | ||
4554 | static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
4555 | { | |
4556 | int i; | |
4557 | ||
4558 | for (i = 0; i < drv->num_if_indices; i++) { | |
4559 | if (drv->if_indices[i] == ifidx) { | |
4560 | drv->if_indices[i] = 0; | |
4561 | break; | |
4562 | } | |
4563 | } | |
4564 | } | |
4565 | ||
4566 | ||
4567 | static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
4568 | { | |
4569 | int i; | |
4570 | ||
4571 | for (i = 0; i < drv->num_if_indices; i++) | |
4572 | if (drv->if_indices[i] == ifidx) | |
4573 | return 1; | |
4574 | ||
4575 | return 0; | |
4576 | } | |
4577 | ||
4578 | ||
c5121837 JM |
4579 | static inline int min_int(int a, int b) |
4580 | { | |
4581 | if (a < b) | |
4582 | return a; | |
4583 | return b; | |
4584 | } | |
4585 | ||
4586 | ||
4587 | static int get_key_handler(struct nl_msg *msg, void *arg) | |
4588 | { | |
4589 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
4590 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
4591 | ||
4592 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
4593 | genlmsg_attrlen(gnlh, 0), NULL); | |
4594 | ||
4595 | /* | |
4596 | * TODO: validate the key index and mac address! | |
4597 | * Otherwise, there's a race condition as soon as | |
4598 | * the kernel starts sending key notifications. | |
4599 | */ | |
4600 | ||
4601 | if (tb[NL80211_ATTR_KEY_SEQ]) | |
4602 | memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), | |
4603 | min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); | |
4604 | return NL_SKIP; | |
4605 | } | |
4606 | ||
4607 | ||
4608 | static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, | |
4609 | int idx, u8 *seq) | |
4610 | { | |
a2e40bb6 FF |
4611 | struct i802_bss *bss = priv; |
4612 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
4613 | struct nl_msg *msg; |
4614 | ||
4615 | msg = nlmsg_alloc(); | |
4616 | if (!msg) | |
4617 | return -ENOMEM; | |
4618 | ||
4619 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
4620 | 0, NL80211_CMD_GET_KEY, 0); | |
4621 | ||
4622 | if (addr) | |
4623 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
4624 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); | |
4625 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); | |
4626 | ||
4627 | memset(seq, 0, 6); | |
4628 | ||
4629 | return send_and_recv_msgs(drv, msg, get_key_handler, seq); | |
4630 | nla_put_failure: | |
4631 | return -ENOBUFS; | |
4632 | } | |
4633 | ||
4634 | ||
4635 | static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates, | |
4636 | int mode) | |
4637 | { | |
a2e40bb6 FF |
4638 | struct i802_bss *bss = priv; |
4639 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
4640 | struct nl_msg *msg; |
4641 | u8 rates[NL80211_MAX_SUPP_RATES]; | |
4642 | u8 rates_len = 0; | |
4643 | int i; | |
4644 | ||
4645 | msg = nlmsg_alloc(); | |
4646 | if (!msg) | |
4647 | return -ENOMEM; | |
4648 | ||
4649 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
4650 | NL80211_CMD_SET_BSS, 0); | |
4651 | ||
4652 | for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++) | |
4653 | rates[rates_len++] = basic_rates[i] / 5; | |
4654 | ||
4655 | NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); | |
4656 | ||
a2e40bb6 | 4657 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
c5121837 JM |
4658 | |
4659 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
4660 | nla_put_failure: | |
4661 | return -ENOBUFS; | |
4662 | } | |
4663 | ||
e3802622 JM |
4664 | #endif /* HOSTAPD */ |
4665 | ||
c5121837 | 4666 | |
c5121837 JM |
4667 | /* Set kernel driver on given frequency (MHz) */ |
4668 | static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) | |
4669 | { | |
a2e40bb6 FF |
4670 | struct i802_bss *bss = priv; |
4671 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
f019981a JM |
4672 | return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled, |
4673 | freq->sec_channel_offset); | |
c5121837 JM |
4674 | } |
4675 | ||
4676 | ||
e3802622 JM |
4677 | #ifdef HOSTAPD |
4678 | ||
c5121837 JM |
4679 | static int i802_set_rts(void *priv, int rts) |
4680 | { | |
a2e40bb6 FF |
4681 | struct i802_bss *bss = priv; |
4682 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
ad649451 JM |
4683 | struct nl_msg *msg; |
4684 | int ret = -ENOBUFS; | |
4685 | u32 val; | |
c5121837 | 4686 | |
ad649451 JM |
4687 | msg = nlmsg_alloc(); |
4688 | if (!msg) | |
4689 | return -ENOMEM; | |
c5121837 | 4690 | |
ad649451 JM |
4691 | if (rts >= 2347) |
4692 | val = (u32) -1; | |
4693 | else | |
4694 | val = rts; | |
c5121837 | 4695 | |
ad649451 JM |
4696 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, |
4697 | 0, NL80211_CMD_SET_WIPHY, 0); | |
4698 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4699 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); | |
4700 | ||
4701 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4702 | if (!ret) | |
4703 | return 0; | |
4704 | nla_put_failure: | |
4705 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " | |
4706 | "%d (%s)", rts, ret, strerror(-ret)); | |
4707 | return ret; | |
c5121837 JM |
4708 | } |
4709 | ||
4710 | ||
4711 | static int i802_set_frag(void *priv, int frag) | |
4712 | { | |
a2e40bb6 FF |
4713 | struct i802_bss *bss = priv; |
4714 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
ad649451 JM |
4715 | struct nl_msg *msg; |
4716 | int ret = -ENOBUFS; | |
4717 | u32 val; | |
c5121837 | 4718 | |
ad649451 JM |
4719 | msg = nlmsg_alloc(); |
4720 | if (!msg) | |
4721 | return -ENOMEM; | |
c5121837 | 4722 | |
ad649451 JM |
4723 | if (frag >= 2346) |
4724 | val = (u32) -1; | |
4725 | else | |
4726 | val = frag; | |
c5121837 | 4727 | |
ad649451 JM |
4728 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, |
4729 | 0, NL80211_CMD_SET_WIPHY, 0); | |
4730 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4731 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); | |
4732 | ||
4733 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4734 | if (!ret) | |
4735 | return 0; | |
4736 | nla_put_failure: | |
4737 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " | |
4738 | "%d: %d (%s)", frag, ret, strerror(-ret)); | |
4739 | return ret; | |
c5121837 JM |
4740 | } |
4741 | ||
4742 | ||
c5121837 JM |
4743 | static int i802_flush(void *priv) |
4744 | { | |
a2e40bb6 FF |
4745 | struct i802_bss *bss = priv; |
4746 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
4747 | struct nl_msg *msg; |
4748 | ||
4749 | msg = nlmsg_alloc(); | |
4750 | if (!msg) | |
4751 | return -1; | |
4752 | ||
4753 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
4754 | 0, NL80211_CMD_DEL_STATION, 0); | |
4755 | ||
4756 | /* | |
4757 | * XXX: FIX! this needs to flush all VLANs too | |
4758 | */ | |
4759 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 4760 | if_nametoindex(bss->ifname)); |
c5121837 JM |
4761 | |
4762 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
4763 | nla_put_failure: | |
4764 | return -ENOBUFS; | |
4765 | } | |
4766 | ||
4767 | ||
4768 | static int get_sta_handler(struct nl_msg *msg, void *arg) | |
4769 | { | |
4770 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
4771 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
4772 | struct hostap_sta_driver_data *data = arg; | |
4773 | struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; | |
4774 | static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { | |
4775 | [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, | |
4776 | [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, | |
4777 | [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, | |
4778 | [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, | |
4779 | [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, | |
4780 | }; | |
4781 | ||
4782 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
4783 | genlmsg_attrlen(gnlh, 0), NULL); | |
4784 | ||
4785 | /* | |
4786 | * TODO: validate the interface and mac address! | |
4787 | * Otherwise, there's a race condition as soon as | |
4788 | * the kernel starts sending station notifications. | |
4789 | */ | |
4790 | ||
4791 | if (!tb[NL80211_ATTR_STA_INFO]) { | |
4792 | wpa_printf(MSG_DEBUG, "sta stats missing!"); | |
4793 | return NL_SKIP; | |
4794 | } | |
4795 | if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, | |
4796 | tb[NL80211_ATTR_STA_INFO], | |
4797 | stats_policy)) { | |
4798 | wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); | |
4799 | return NL_SKIP; | |
4800 | } | |
4801 | ||
4802 | if (stats[NL80211_STA_INFO_INACTIVE_TIME]) | |
4803 | data->inactive_msec = | |
4804 | nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); | |
4805 | if (stats[NL80211_STA_INFO_RX_BYTES]) | |
4806 | data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); | |
4807 | if (stats[NL80211_STA_INFO_TX_BYTES]) | |
4808 | data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); | |
4809 | if (stats[NL80211_STA_INFO_RX_PACKETS]) | |
4810 | data->rx_packets = | |
4811 | nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); | |
4812 | if (stats[NL80211_STA_INFO_TX_PACKETS]) | |
4813 | data->tx_packets = | |
4814 | nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); | |
4815 | ||
4816 | return NL_SKIP; | |
4817 | } | |
4818 | ||
4819 | static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data, | |
4820 | const u8 *addr) | |
4821 | { | |
a2e40bb6 FF |
4822 | struct i802_bss *bss = priv; |
4823 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
4824 | struct nl_msg *msg; |
4825 | ||
4826 | os_memset(data, 0, sizeof(*data)); | |
4827 | msg = nlmsg_alloc(); | |
4828 | if (!msg) | |
4829 | return -ENOMEM; | |
4830 | ||
4831 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
4832 | 0, NL80211_CMD_GET_STATION, 0); | |
4833 | ||
4834 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
a2e40bb6 | 4835 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
c5121837 JM |
4836 | |
4837 | return send_and_recv_msgs(drv, msg, get_sta_handler, data); | |
4838 | nla_put_failure: | |
4839 | return -ENOBUFS; | |
4840 | } | |
4841 | ||
4842 | ||
c5121837 JM |
4843 | static int i802_set_tx_queue_params(void *priv, int queue, int aifs, |
4844 | int cw_min, int cw_max, int burst_time) | |
4845 | { | |
a2e40bb6 FF |
4846 | struct i802_bss *bss = priv; |
4847 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
4848 | struct nl_msg *msg; |
4849 | struct nlattr *txq, *params; | |
4850 | ||
4851 | msg = nlmsg_alloc(); | |
4852 | if (!msg) | |
4853 | return -1; | |
4854 | ||
4855 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
4856 | 0, NL80211_CMD_SET_WIPHY, 0); | |
4857 | ||
a2e40bb6 | 4858 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
c5121837 JM |
4859 | |
4860 | txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); | |
4861 | if (!txq) | |
4862 | goto nla_put_failure; | |
4863 | ||
4864 | /* We are only sending parameters for a single TXQ at a time */ | |
4865 | params = nla_nest_start(msg, 1); | |
4866 | if (!params) | |
4867 | goto nla_put_failure; | |
4868 | ||
4869 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue); | |
4870 | /* Burst time is configured in units of 0.1 msec and TXOP parameter in | |
4871 | * 32 usec, so need to convert the value here. */ | |
4872 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); | |
4873 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); | |
4874 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); | |
4875 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); | |
4876 | ||
4877 | nla_nest_end(msg, params); | |
4878 | ||
4879 | nla_nest_end(msg, txq); | |
4880 | ||
4881 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
4882 | return 0; | |
4883 | nla_put_failure: | |
4884 | return -1; | |
4885 | } | |
4886 | ||
4887 | ||
c5121837 JM |
4888 | static int i802_set_bss(void *priv, int cts, int preamble, int slot) |
4889 | { | |
a2e40bb6 FF |
4890 | struct i802_bss *bss = priv; |
4891 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
4892 | struct nl_msg *msg; |
4893 | ||
4894 | msg = nlmsg_alloc(); | |
4895 | if (!msg) | |
4896 | return -ENOMEM; | |
4897 | ||
4898 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
4899 | NL80211_CMD_SET_BSS, 0); | |
4900 | ||
4901 | if (cts >= 0) | |
4902 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); | |
4903 | if (preamble >= 0) | |
4904 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); | |
4905 | if (slot >= 0) | |
4906 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); | |
4907 | ||
a2e40bb6 | 4908 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
c5121837 JM |
4909 | |
4910 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
4911 | nla_put_failure: | |
4912 | return -ENOBUFS; | |
4913 | } | |
4914 | ||
4915 | ||
4916 | static int i802_set_cts_protect(void *priv, int value) | |
4917 | { | |
4918 | return i802_set_bss(priv, value, -1, -1); | |
4919 | } | |
4920 | ||
4921 | ||
4922 | static int i802_set_preamble(void *priv, int value) | |
4923 | { | |
4924 | return i802_set_bss(priv, -1, value, -1); | |
4925 | } | |
4926 | ||
4927 | ||
4928 | static int i802_set_short_slot_time(void *priv, int value) | |
4929 | { | |
4930 | return i802_set_bss(priv, -1, -1, value); | |
4931 | } | |
4932 | ||
4933 | ||
c5121837 JM |
4934 | static int i802_set_sta_vlan(void *priv, const u8 *addr, |
4935 | const char *ifname, int vlan_id) | |
4936 | { | |
a2e40bb6 FF |
4937 | struct i802_bss *bss = priv; |
4938 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 | 4939 | struct nl_msg *msg; |
cd1d72c1 | 4940 | int ret = -ENOBUFS; |
c5121837 JM |
4941 | |
4942 | msg = nlmsg_alloc(); | |
4943 | if (!msg) | |
4944 | return -ENOMEM; | |
4945 | ||
4946 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
4947 | 0, NL80211_CMD_SET_STATION, 0); | |
4948 | ||
4949 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 4950 | if_nametoindex(bss->ifname)); |
c5121837 | 4951 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
1c766b09 | 4952 | NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, |
c5121837 JM |
4953 | if_nametoindex(ifname)); |
4954 | ||
cd1d72c1 JM |
4955 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
4956 | if (ret < 0) { | |
4957 | wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" | |
4958 | MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", | |
4959 | MAC2STR(addr), ifname, vlan_id, ret, | |
4960 | strerror(-ret)); | |
4961 | } | |
c5121837 | 4962 | nla_put_failure: |
cd1d72c1 | 4963 | return ret; |
c5121837 JM |
4964 | } |
4965 | ||
4966 | ||
fbbfcbac FF |
4967 | static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val) |
4968 | { | |
a2e40bb6 FF |
4969 | struct i802_bss *bss = priv; |
4970 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
e748062b | 4971 | char name[IFNAMSIZ + 1]; |
fbbfcbac | 4972 | |
a2e40bb6 | 4973 | os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); |
e748062b JM |
4974 | wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR |
4975 | " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); | |
fbbfcbac | 4976 | if (val) { |
a2e40bb6 | 4977 | if (nl80211_create_iface(drv, name, NL80211_IFTYPE_AP_VLAN, |
fbbfcbac FF |
4978 | NULL, 1) < 0) |
4979 | return -1; | |
34f2f814 | 4980 | linux_set_iface_flags(drv->ioctl_sock, name, 1); |
fbbfcbac FF |
4981 | return i802_set_sta_vlan(priv, addr, name, 0); |
4982 | } else { | |
a2e40bb6 | 4983 | i802_set_sta_vlan(priv, addr, bss->ifname, 0); |
fbbfcbac FF |
4984 | return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, |
4985 | name); | |
4986 | } | |
4987 | } | |
4988 | ||
4989 | ||
c5121837 JM |
4990 | static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) |
4991 | { | |
4992 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
4993 | struct sockaddr_ll lladdr; | |
4994 | unsigned char buf[3000]; | |
4995 | int len; | |
4996 | socklen_t fromlen = sizeof(lladdr); | |
4997 | ||
4998 | len = recvfrom(sock, buf, sizeof(buf), 0, | |
4999 | (struct sockaddr *)&lladdr, &fromlen); | |
5000 | if (len < 0) { | |
5001 | perror("recv"); | |
5002 | return; | |
5003 | } | |
5004 | ||
baac6490 JM |
5005 | if (have_ifidx(drv, lladdr.sll_ifindex)) |
5006 | drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); | |
c5121837 JM |
5007 | } |
5008 | ||
5009 | ||
c5121837 JM |
5010 | static int i802_get_inact_sec(void *priv, const u8 *addr) |
5011 | { | |
5012 | struct hostap_sta_driver_data data; | |
5013 | int ret; | |
5014 | ||
5015 | data.inactive_msec = (unsigned long) -1; | |
5016 | ret = i802_read_sta_data(priv, &data, addr); | |
5017 | if (ret || data.inactive_msec == (unsigned long) -1) | |
5018 | return -1; | |
5019 | return data.inactive_msec / 1000; | |
5020 | } | |
5021 | ||
5022 | ||
5023 | static int i802_sta_clear_stats(void *priv, const u8 *addr) | |
5024 | { | |
5025 | #if 0 | |
5026 | /* TODO */ | |
5027 | #endif | |
5028 | return 0; | |
5029 | } | |
5030 | ||
5031 | ||
731723a5 JM |
5032 | static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, |
5033 | int reason) | |
c5121837 | 5034 | { |
a2e40bb6 | 5035 | struct i802_bss *bss = priv; |
c5121837 JM |
5036 | struct ieee80211_mgmt mgmt; |
5037 | ||
5038 | memset(&mgmt, 0, sizeof(mgmt)); | |
5039 | mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
5040 | WLAN_FC_STYPE_DEAUTH); | |
5041 | memcpy(mgmt.da, addr, ETH_ALEN); | |
731723a5 JM |
5042 | memcpy(mgmt.sa, own_addr, ETH_ALEN); |
5043 | memcpy(mgmt.bssid, own_addr, ETH_ALEN); | |
c5121837 | 5044 | mgmt.u.deauth.reason_code = host_to_le16(reason); |
a2e40bb6 | 5045 | return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, |
9f324b61 JM |
5046 | IEEE80211_HDRLEN + |
5047 | sizeof(mgmt.u.deauth)); | |
c5121837 JM |
5048 | } |
5049 | ||
5050 | ||
731723a5 JM |
5051 | static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, |
5052 | int reason) | |
c5121837 | 5053 | { |
a2e40bb6 | 5054 | struct i802_bss *bss = priv; |
c5121837 JM |
5055 | struct ieee80211_mgmt mgmt; |
5056 | ||
5057 | memset(&mgmt, 0, sizeof(mgmt)); | |
5058 | mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
5059 | WLAN_FC_STYPE_DISASSOC); | |
5060 | memcpy(mgmt.da, addr, ETH_ALEN); | |
731723a5 JM |
5061 | memcpy(mgmt.sa, own_addr, ETH_ALEN); |
5062 | memcpy(mgmt.bssid, own_addr, ETH_ALEN); | |
c5121837 | 5063 | mgmt.u.disassoc.reason_code = host_to_le16(reason); |
a2e40bb6 | 5064 | return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, |
9f324b61 JM |
5065 | IEEE80211_HDRLEN + |
5066 | sizeof(mgmt.u.disassoc)); | |
c5121837 JM |
5067 | } |
5068 | ||
5069 | ||
94627f6c JM |
5070 | static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, |
5071 | const char *brname, const char *ifname) | |
5072 | { | |
5073 | int ifindex; | |
5074 | char in_br[IFNAMSIZ]; | |
5075 | ||
5076 | os_strlcpy(drv->brname, brname, IFNAMSIZ); | |
5077 | ifindex = if_nametoindex(brname); | |
5078 | if (ifindex == 0) { | |
5079 | /* | |
5080 | * Bridge was configured, but the bridge device does | |
5081 | * not exist. Try to add it now. | |
5082 | */ | |
5083 | if (linux_br_add(drv->ioctl_sock, brname) < 0) { | |
5084 | wpa_printf(MSG_ERROR, "nl80211: Failed to add the " | |
5085 | "bridge interface %s: %s", | |
5086 | brname, strerror(errno)); | |
5087 | return -1; | |
5088 | } | |
5089 | drv->added_bridge = 1; | |
5090 | add_ifidx(drv, if_nametoindex(brname)); | |
5091 | } | |
5092 | ||
5093 | if (linux_br_get(in_br, ifname) == 0) { | |
5094 | if (os_strcmp(in_br, brname) == 0) | |
5095 | return 0; /* already in the bridge */ | |
5096 | ||
5097 | wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " | |
5098 | "bridge %s", ifname, in_br); | |
5099 | if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) { | |
5100 | wpa_printf(MSG_ERROR, "nl80211: Failed to " | |
5101 | "remove interface %s from bridge " | |
5102 | "%s: %s", | |
5103 | ifname, brname, strerror(errno)); | |
5104 | return -1; | |
5105 | } | |
5106 | } | |
5107 | ||
5108 | wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", | |
5109 | ifname, brname); | |
5110 | if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) { | |
5111 | wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " | |
5112 | "into bridge %s: %s", | |
5113 | ifname, brname, strerror(errno)); | |
5114 | return -1; | |
5115 | } | |
5116 | drv->added_if_into_bridge = 1; | |
5117 | ||
5118 | return 0; | |
5119 | } | |
5120 | ||
5121 | ||
92f475b4 JM |
5122 | static void *i802_init(struct hostapd_data *hapd, |
5123 | struct wpa_init_params *params) | |
c5121837 JM |
5124 | { |
5125 | struct wpa_driver_nl80211_data *drv; | |
a2e40bb6 | 5126 | struct i802_bss *bss; |
c5121837 | 5127 | size_t i; |
94627f6c JM |
5128 | char brname[IFNAMSIZ]; |
5129 | int ifindex, br_ifindex; | |
5130 | int br_added = 0; | |
c5121837 | 5131 | |
a2e40bb6 FF |
5132 | bss = wpa_driver_nl80211_init(hapd, params->ifname); |
5133 | if (bss == NULL) | |
c5121837 | 5134 | return NULL; |
c5121837 | 5135 | |
a2e40bb6 | 5136 | drv = bss->drv; |
94627f6c JM |
5137 | if (linux_br_get(brname, params->ifname) == 0) { |
5138 | wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", | |
5139 | params->ifname, brname); | |
5140 | br_ifindex = if_nametoindex(brname); | |
5141 | } else { | |
5142 | brname[0] = '\0'; | |
5143 | br_ifindex = 0; | |
5144 | } | |
5145 | ||
c5121837 JM |
5146 | drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); |
5147 | drv->if_indices = drv->default_if_indices; | |
92f475b4 | 5148 | for (i = 0; i < params->num_bridge; i++) { |
94627f6c JM |
5149 | if (params->bridge[i]) { |
5150 | ifindex = if_nametoindex(params->bridge[i]); | |
5151 | if (ifindex) | |
5152 | add_ifidx(drv, ifindex); | |
5153 | if (ifindex == br_ifindex) | |
5154 | br_added = 1; | |
5155 | } | |
c5121837 | 5156 | } |
94627f6c JM |
5157 | if (!br_added && br_ifindex && |
5158 | (params->num_bridge == 0 || !params->bridge[0])) | |
5159 | add_ifidx(drv, br_ifindex); | |
c5121837 | 5160 | |
ad1e68e6 JM |
5161 | /* start listening for EAPOL on the default AP interface */ |
5162 | add_ifidx(drv, drv->ifindex); | |
5163 | ||
a2e40bb6 | 5164 | if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0)) |
6980c191 | 5165 | goto failed; |
ad1e68e6 | 5166 | |
6980c191 | 5167 | if (params->bssid) { |
a2e40bb6 | 5168 | if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname, |
2ac9688e | 5169 | params->bssid)) |
460456f8 JM |
5170 | goto failed; |
5171 | } | |
ad1e68e6 | 5172 | |
a2e40bb6 | 5173 | if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_AP)) { |
ad1e68e6 | 5174 | wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " |
a2e40bb6 | 5175 | "into AP mode", bss->ifname); |
bbaf0837 | 5176 | goto failed; |
ad1e68e6 JM |
5177 | } |
5178 | ||
94627f6c JM |
5179 | if (params->num_bridge && params->bridge[0] && |
5180 | i802_check_bridge(drv, params->bridge[0], params->ifname) < 0) | |
5181 | goto failed; | |
5182 | ||
a2e40bb6 | 5183 | if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) |
bbaf0837 | 5184 | goto failed; |
ad1e68e6 JM |
5185 | |
5186 | drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); | |
5187 | if (drv->eapol_sock < 0) { | |
5188 | perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); | |
bbaf0837 | 5189 | goto failed; |
ad1e68e6 JM |
5190 | } |
5191 | ||
5192 | if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) | |
5193 | { | |
5194 | printf("Could not register read socket for eapol\n"); | |
c5121837 | 5195 | goto failed; |
ad1e68e6 JM |
5196 | } |
5197 | ||
a2e40bb6 | 5198 | if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr)) |
bbaf0837 | 5199 | goto failed; |
c5121837 | 5200 | |
a2e40bb6 | 5201 | return bss; |
c5121837 JM |
5202 | |
5203 | failed: | |
460456f8 | 5204 | nl80211_remove_monitor_interface(drv); |
c5121837 JM |
5205 | if (drv->ioctl_sock >= 0) |
5206 | close(drv->ioctl_sock); | |
c5121837 JM |
5207 | |
5208 | genl_family_put(drv->nl80211); | |
5209 | nl_cache_free(drv->nl_cache); | |
a65a9aed | 5210 | nl80211_handle_destroy(drv->nl_handle); |
c5121837 JM |
5211 | nl_cb_put(drv->nl_cb); |
5212 | ||
bbaf0837 JM |
5213 | os_free(drv); |
5214 | return NULL; | |
5215 | } | |
c5121837 | 5216 | |
c5121837 | 5217 | |
bbaf0837 JM |
5218 | static void i802_deinit(void *priv) |
5219 | { | |
5220 | wpa_driver_nl80211_deinit(priv); | |
c5121837 JM |
5221 | } |
5222 | ||
5223 | #endif /* HOSTAPD */ | |
5224 | ||
5225 | ||
22a7c9d7 JM |
5226 | static enum nl80211_iftype wpa_driver_nl80211_if_type( |
5227 | enum wpa_driver_if_type type) | |
5228 | { | |
5229 | switch (type) { | |
5230 | case WPA_IF_STATION: | |
75bde05d JM |
5231 | case WPA_IF_P2P_CLIENT: |
5232 | case WPA_IF_P2P_GROUP: | |
22a7c9d7 JM |
5233 | return NL80211_IFTYPE_STATION; |
5234 | case WPA_IF_AP_VLAN: | |
5235 | return NL80211_IFTYPE_AP_VLAN; | |
5236 | case WPA_IF_AP_BSS: | |
75bde05d | 5237 | case WPA_IF_P2P_GO: |
22a7c9d7 JM |
5238 | return NL80211_IFTYPE_AP; |
5239 | } | |
5240 | return -1; | |
5241 | } | |
5242 | ||
5243 | ||
7ab68865 | 5244 | static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, |
8043e725 | 5245 | const char *ifname, const u8 *addr, |
f3585c8a JM |
5246 | void *bss_ctx, void **drv_priv, |
5247 | char *force_ifname, u8 *if_addr) | |
22a7c9d7 | 5248 | { |
a2e40bb6 FF |
5249 | struct i802_bss *bss = priv; |
5250 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
22a7c9d7 JM |
5251 | int ifidx; |
5252 | #ifdef HOSTAPD | |
a2e40bb6 | 5253 | struct i802_bss *new_bss = NULL; |
22a7c9d7 JM |
5254 | |
5255 | if (type == WPA_IF_AP_BSS) { | |
a2e40bb6 FF |
5256 | new_bss = os_zalloc(sizeof(*new_bss)); |
5257 | if (new_bss == NULL) | |
22a7c9d7 JM |
5258 | return -1; |
5259 | } | |
5260 | #endif /* HOSTAPD */ | |
5261 | ||
f3585c8a JM |
5262 | if (addr) |
5263 | os_memcpy(if_addr, addr, ETH_ALEN); | |
22a7c9d7 | 5264 | ifidx = nl80211_create_iface(drv, ifname, |
fbbfcbac FF |
5265 | wpa_driver_nl80211_if_type(type), addr, |
5266 | 0); | |
22a7c9d7 JM |
5267 | if (ifidx < 0) { |
5268 | #ifdef HOSTAPD | |
a2e40bb6 | 5269 | os_free(new_bss); |
22a7c9d7 JM |
5270 | #endif /* HOSTAPD */ |
5271 | return -1; | |
5272 | } | |
5273 | ||
f3585c8a JM |
5274 | if (!addr && |
5275 | linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, if_addr) < 0) | |
5276 | return -1; | |
5277 | ||
22a7c9d7 JM |
5278 | #ifdef HOSTAPD |
5279 | if (type == WPA_IF_AP_BSS) { | |
34f2f814 JM |
5280 | if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) { |
5281 | nl80211_remove_iface(drv, ifidx); | |
07179987 | 5282 | os_free(new_bss); |
22a7c9d7 JM |
5283 | return -1; |
5284 | } | |
a2e40bb6 FF |
5285 | os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); |
5286 | new_bss->ifindex = ifidx; | |
5287 | new_bss->drv = drv; | |
5288 | new_bss->next = drv->first_bss.next; | |
5289 | drv->first_bss.next = new_bss; | |
5290 | if (drv_priv) | |
5291 | *drv_priv = new_bss; | |
22a7c9d7 JM |
5292 | } |
5293 | #endif /* HOSTAPD */ | |
5294 | ||
5295 | return 0; | |
5296 | } | |
5297 | ||
5298 | ||
5299 | static int wpa_driver_nl80211_if_remove(void *priv, | |
5300 | enum wpa_driver_if_type type, | |
5301 | const char *ifname) | |
5302 | { | |
a2e40bb6 FF |
5303 | struct i802_bss *bss = priv; |
5304 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
22a7c9d7 JM |
5305 | int ifindex = if_nametoindex(ifname); |
5306 | ||
e748062b JM |
5307 | wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", |
5308 | __func__, type, ifname, ifindex); | |
5309 | if (ifindex <= 0) | |
5310 | return -1; | |
22a7c9d7 JM |
5311 | nl80211_remove_iface(drv, ifindex); |
5312 | ||
5313 | #ifdef HOSTAPD | |
a2e40bb6 FF |
5314 | if (type != WPA_IF_AP_BSS) |
5315 | return 0; | |
5316 | ||
5317 | if (bss != &drv->first_bss) { | |
5318 | struct i802_bss *tbss = &drv->first_bss; | |
5319 | ||
5320 | while (tbss) { | |
5321 | if (tbss->next != bss) | |
5322 | continue; | |
5323 | ||
5324 | tbss->next = bss->next; | |
5325 | os_free(bss); | |
5326 | break; | |
22a7c9d7 JM |
5327 | } |
5328 | } | |
5329 | #endif /* HOSTAPD */ | |
5330 | ||
5331 | return 0; | |
5332 | } | |
5333 | ||
5334 | ||
55777702 JM |
5335 | static int cookie_handler(struct nl_msg *msg, void *arg) |
5336 | { | |
5337 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
5338 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
5339 | u64 *cookie = arg; | |
5340 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
5341 | genlmsg_attrlen(gnlh, 0), NULL); | |
5342 | if (tb[NL80211_ATTR_COOKIE]) | |
5343 | *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); | |
5344 | return NL_SKIP; | |
5345 | } | |
5346 | ||
5347 | ||
9884f9cc JB |
5348 | static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv, |
5349 | unsigned int freq, const u8 *buf, | |
5350 | size_t buf_len, u64 *cookie_out) | |
5351 | { | |
5352 | struct nl_msg *msg; | |
5353 | u64 cookie; | |
5354 | int ret = -1; | |
5355 | ||
5356 | msg = nlmsg_alloc(); | |
5357 | if (!msg) | |
5358 | return -1; | |
5359 | ||
5360 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
5361 | NL80211_CMD_FRAME, 0); | |
5362 | ||
5363 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5364 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5365 | NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); | |
5366 | ||
5367 | cookie = 0; | |
5368 | ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); | |
5369 | msg = NULL; | |
5370 | if (ret) { | |
5371 | wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " | |
5372 | "(%s)", ret, strerror(-ret)); | |
5373 | goto nla_put_failure; | |
5374 | } | |
5375 | wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; " | |
5376 | "cookie 0x%llx", (long long unsigned int) cookie); | |
5377 | ||
5378 | if (cookie_out) | |
5379 | *cookie_out = cookie; | |
5380 | ||
5381 | nla_put_failure: | |
5382 | nlmsg_free(msg); | |
5383 | return ret; | |
5384 | } | |
5385 | ||
5386 | ||
58f6fbe0 JM |
5387 | static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq, |
5388 | const u8 *dst, const u8 *src, | |
5389 | const u8 *bssid, | |
5390 | const u8 *data, size_t data_len) | |
5391 | { | |
a2e40bb6 FF |
5392 | struct i802_bss *bss = priv; |
5393 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
58f6fbe0 | 5394 | int ret = -1; |
58f6fbe0 JM |
5395 | u8 *buf; |
5396 | struct ieee80211_hdr *hdr; | |
58f6fbe0 JM |
5397 | |
5398 | wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d)", | |
5399 | drv->ifindex); | |
5400 | ||
5401 | buf = os_zalloc(24 + data_len); | |
5402 | if (buf == NULL) | |
5403 | return ret; | |
5404 | os_memcpy(buf + 24, data, data_len); | |
5405 | hdr = (struct ieee80211_hdr *) buf; | |
5406 | hdr->frame_control = | |
5407 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); | |
5408 | os_memcpy(hdr->addr1, dst, ETH_ALEN); | |
5409 | os_memcpy(hdr->addr2, src, ETH_ALEN); | |
5410 | os_memcpy(hdr->addr3, bssid, ETH_ALEN); | |
5411 | ||
9884f9cc | 5412 | if (drv->nlmode == NL80211_IFTYPE_AP) |
58f6fbe0 | 5413 | ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len); |
9884f9cc JB |
5414 | else |
5415 | ret = nl80211_send_frame_cmd(drv, freq, buf, 24 + data_len, | |
5416 | &drv->send_action_cookie); | |
58f6fbe0 | 5417 | |
f8bf1421 | 5418 | os_free(buf); |
58f6fbe0 JM |
5419 | return ret; |
5420 | } | |
5421 | ||
5422 | ||
55777702 JM |
5423 | static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, |
5424 | unsigned int duration) | |
5425 | { | |
a2e40bb6 FF |
5426 | struct i802_bss *bss = priv; |
5427 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
55777702 JM |
5428 | struct nl_msg *msg; |
5429 | int ret; | |
5430 | u64 cookie; | |
5431 | ||
5432 | msg = nlmsg_alloc(); | |
5433 | if (!msg) | |
5434 | return -1; | |
5435 | ||
5436 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
5437 | NL80211_CMD_REMAIN_ON_CHANNEL, 0); | |
5438 | ||
5439 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5440 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5441 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5442 | ||
5443 | cookie = 0; | |
5444 | ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); | |
5445 | if (ret == 0) { | |
5446 | wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " | |
5447 | "0x%llx for freq=%u MHz duration=%u", | |
5448 | (long long unsigned int) cookie, freq, duration); | |
5449 | drv->remain_on_chan_cookie = cookie; | |
5450 | return 0; | |
5451 | } | |
5452 | wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " | |
15ed5535 JM |
5453 | "(freq=%d duration=%u): %d (%s)", |
5454 | freq, duration, ret, strerror(-ret)); | |
55777702 JM |
5455 | nla_put_failure: |
5456 | return -1; | |
5457 | } | |
5458 | ||
5459 | ||
5460 | static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) | |
5461 | { | |
a2e40bb6 FF |
5462 | struct i802_bss *bss = priv; |
5463 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
55777702 JM |
5464 | struct nl_msg *msg; |
5465 | int ret; | |
5466 | ||
5467 | if (!drv->pending_remain_on_chan) { | |
5468 | wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " | |
5469 | "to cancel"); | |
5470 | return -1; | |
5471 | } | |
5472 | ||
5473 | wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " | |
5474 | "0x%llx", | |
5475 | (long long unsigned int) drv->remain_on_chan_cookie); | |
5476 | ||
5477 | msg = nlmsg_alloc(); | |
5478 | if (!msg) | |
5479 | return -1; | |
5480 | ||
5481 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
5482 | NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, 0); | |
5483 | ||
5484 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5485 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); | |
5486 | ||
5487 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5488 | if (ret == 0) | |
5489 | return 0; | |
5490 | wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " | |
5491 | "%d (%s)", ret, strerror(-ret)); | |
5492 | nla_put_failure: | |
5493 | return -1; | |
5494 | } | |
5495 | ||
5496 | ||
504e905c JM |
5497 | static int wpa_driver_nl80211_probe_req_report(void *priv, int report) |
5498 | { | |
a2e40bb6 FF |
5499 | struct i802_bss *bss = priv; |
5500 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
504e905c JM |
5501 | |
5502 | if (drv->nlmode != NL80211_IFTYPE_STATION) { | |
5503 | wpa_printf(MSG_DEBUG, "nl80211: probe_req_report control only " | |
5504 | "allowed in station mode (iftype=%d)", | |
5505 | drv->nlmode); | |
5506 | return -1; | |
5507 | } | |
504e905c | 5508 | |
5582a5d1 JB |
5509 | if (!report) { |
5510 | if (drv->nl_handle_preq) { | |
5511 | eloop_unregister_read_sock( | |
5512 | nl_socket_get_fd(drv->nl_handle_preq)); | |
5513 | nl_cache_free(drv->nl_cache_preq); | |
5514 | nl80211_handle_destroy(drv->nl_handle_preq); | |
5515 | drv->nl_handle_preq = NULL; | |
5516 | } | |
5517 | return 0; | |
5518 | } | |
5519 | ||
5520 | if (drv->nl_handle_preq) { | |
5521 | wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " | |
5522 | "already on!"); | |
5523 | return 0; | |
5524 | } | |
5525 | ||
5526 | drv->nl_handle_preq = nl80211_handle_alloc(drv->nl_cb); | |
5527 | if (drv->nl_handle_preq == NULL) { | |
5528 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate " | |
5529 | "netlink callbacks (preq)"); | |
5530 | goto out_err1; | |
5531 | } | |
5532 | ||
5533 | if (genl_connect(drv->nl_handle_preq)) { | |
5534 | wpa_printf(MSG_ERROR, "nl80211: Failed to connect to " | |
5535 | "generic netlink (preq)"); | |
5536 | goto out_err2; | |
5537 | return -1; | |
504e905c JM |
5538 | } |
5539 | ||
5582a5d1 JB |
5540 | #ifdef CONFIG_LIBNL20 |
5541 | if (genl_ctrl_alloc_cache(drv->nl_handle_preq, | |
5542 | &drv->nl_cache_preq) < 0) { | |
5543 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " | |
5544 | "netlink cache (preq)"); | |
5545 | goto out_err2; | |
5546 | } | |
5547 | #else /* CONFIG_LIBNL20 */ | |
5548 | drv->nl_cache_preq = genl_ctrl_alloc_cache(drv->nl_handle_preq); | |
5549 | if (drv->nl_cache_preq == NULL) { | |
5550 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " | |
5551 | "netlink cache (preq)"); | |
5552 | goto out_err2; | |
5553 | } | |
5554 | #endif /* CONFIG_LIBNL20 */ | |
5555 | ||
5556 | if (nl80211_register_frame(drv, drv->nl_handle_preq, | |
5557 | (WLAN_FC_TYPE_MGMT << 2) | | |
5558 | (WLAN_FC_STYPE_PROBE_REQ << 4), | |
5559 | NULL, 0) < 0) { | |
5560 | goto out_err3; | |
5561 | } | |
5562 | ||
5563 | eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_preq), | |
5564 | wpa_driver_nl80211_event_receive, drv, | |
5565 | drv->nl_handle_preq); | |
5566 | ||
504e905c | 5567 | return 0; |
5582a5d1 JB |
5568 | |
5569 | out_err3: | |
5570 | nl_cache_free(drv->nl_cache_preq); | |
5571 | out_err2: | |
5572 | nl80211_handle_destroy(drv->nl_handle_preq); | |
5573 | drv->nl_handle_preq = NULL; | |
5574 | out_err1: | |
5575 | return -1; | |
504e905c JM |
5576 | } |
5577 | ||
5578 | ||
4e5cb1a3 JM |
5579 | static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, |
5580 | int ifindex, int disabled) | |
5581 | { | |
5582 | struct nl_msg *msg; | |
5583 | struct nlattr *bands, *band; | |
5584 | int ret; | |
5585 | ||
5586 | msg = nlmsg_alloc(); | |
5587 | if (!msg) | |
5588 | return -1; | |
5589 | ||
5590 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
5591 | NL80211_CMD_SET_TX_BITRATE_MASK, 0); | |
5592 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
5593 | ||
5594 | bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); | |
5595 | if (!bands) | |
5596 | goto nla_put_failure; | |
5597 | ||
5598 | /* | |
5599 | * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything | |
5600 | * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS | |
5601 | * rates. All 5 GHz rates are left enabled. | |
5602 | */ | |
5603 | band = nla_nest_start(msg, NL80211_BAND_2GHZ); | |
5604 | if (!band) | |
5605 | goto nla_put_failure; | |
5606 | NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, | |
5607 | "\x0c\x12\x18\x24\x30\x48\x60\x6c"); | |
5608 | nla_nest_end(msg, band); | |
5609 | ||
5610 | nla_nest_end(msg, bands); | |
5611 | ||
5612 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5613 | msg = NULL; | |
5614 | if (ret) { | |
5615 | wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " | |
5616 | "(%s)", ret, strerror(-ret)); | |
5617 | } | |
5618 | ||
5619 | return ret; | |
5620 | ||
5621 | nla_put_failure: | |
5622 | nlmsg_free(msg); | |
5623 | return -1; | |
5624 | } | |
5625 | ||
5626 | ||
5627 | static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled) | |
5628 | { | |
a2e40bb6 FF |
5629 | struct i802_bss *bss = priv; |
5630 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
4e5cb1a3 JM |
5631 | drv->disable_11b_rates = disabled; |
5632 | return nl80211_disable_11b_rates(drv, drv->ifindex, disabled); | |
5633 | } | |
5634 | ||
5635 | ||
af473088 JM |
5636 | static int wpa_driver_nl80211_deinit_ap(void *priv) |
5637 | { | |
a2e40bb6 FF |
5638 | struct i802_bss *bss = priv; |
5639 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
af473088 JM |
5640 | if (drv->nlmode != NL80211_IFTYPE_AP) |
5641 | return -1; | |
5642 | wpa_driver_nl80211_del_beacon(drv); | |
a2e40bb6 | 5643 | return wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA); |
af473088 JM |
5644 | } |
5645 | ||
5646 | ||
207ef3fb JM |
5647 | static void wpa_driver_nl80211_resume(void *priv) |
5648 | { | |
a2e40bb6 FF |
5649 | struct i802_bss *bss = priv; |
5650 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5651 | if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) { | |
207ef3fb JM |
5652 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on " |
5653 | "resume event"); | |
5654 | } | |
5655 | } | |
5656 | ||
5657 | ||
7b90c16a JM |
5658 | static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, |
5659 | const u8 *ies, size_t ies_len) | |
5660 | { | |
5661 | struct i802_bss *bss = priv; | |
5662 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5663 | int ret; | |
5664 | u8 *data, *pos; | |
5665 | size_t data_len; | |
5666 | u8 own_addr[ETH_ALEN]; | |
5667 | ||
5668 | if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0) | |
5669 | return -1; | |
5670 | ||
5671 | if (action != 1) { | |
5672 | wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " | |
5673 | "action %d", action); | |
5674 | return -1; | |
5675 | } | |
5676 | ||
5677 | /* | |
5678 | * Action frame payload: | |
5679 | * Category[1] = 6 (Fast BSS Transition) | |
5680 | * Action[1] = 1 (Fast BSS Transition Request) | |
5681 | * STA Address | |
5682 | * Target AP Address | |
5683 | * FT IEs | |
5684 | */ | |
5685 | ||
73fc617d JM |
5686 | data_len = 2 + 2 * ETH_ALEN + ies_len; |
5687 | data = os_malloc(data_len); | |
7b90c16a JM |
5688 | if (data == NULL) |
5689 | return -1; | |
5690 | pos = data; | |
5691 | *pos++ = 0x06; /* FT Action category */ | |
5692 | *pos++ = action; | |
5693 | os_memcpy(pos, own_addr, ETH_ALEN); | |
5694 | pos += ETH_ALEN; | |
5695 | os_memcpy(pos, target_ap, ETH_ALEN); | |
5696 | pos += ETH_ALEN; | |
5697 | os_memcpy(pos, ies, ies_len); | |
5698 | ||
5699 | ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, drv->bssid, | |
5700 | own_addr, drv->bssid, | |
5701 | data, data_len); | |
5702 | os_free(data); | |
5703 | ||
5704 | return ret; | |
5705 | } | |
5706 | ||
5707 | ||
b625473c JM |
5708 | static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) |
5709 | { | |
5710 | struct i802_bss *bss = priv; | |
5711 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5712 | struct nl_msg *msg, *cqm = NULL; | |
5713 | ||
5714 | wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " | |
5715 | "hysteresis=%d", threshold, hysteresis); | |
5716 | ||
5717 | msg = nlmsg_alloc(); | |
5718 | if (!msg) | |
5719 | return -1; | |
5720 | ||
5721 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, | |
5722 | 0, NL80211_CMD_SET_CQM, 0); | |
5723 | ||
5724 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
5725 | ||
5726 | cqm = nlmsg_alloc(); | |
5727 | if (cqm == NULL) | |
5728 | return -1; | |
5729 | ||
5730 | NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold); | |
5731 | NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); | |
5732 | nla_put_nested(msg, NL80211_ATTR_CQM, cqm); | |
5733 | ||
5734 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
5735 | return 0; | |
5736 | msg = NULL; | |
5737 | ||
5738 | nla_put_failure: | |
5739 | if (cqm) | |
5740 | nlmsg_free(cqm); | |
5741 | nlmsg_free(msg); | |
5742 | return -1; | |
5743 | } | |
5744 | ||
5745 | ||
b91ab76e JM |
5746 | static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, |
5747 | int encrypt) | |
5748 | { | |
5749 | struct i802_bss *bss = priv; | |
5750 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5751 | return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt); | |
5752 | } | |
5753 | ||
5754 | ||
6ee04cfc JB |
5755 | static int nl80211_set_intra_bss(void *priv, int enabled) |
5756 | { | |
5757 | struct i802_bss *bss = priv; | |
5758 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5759 | struct nl_msg *msg; | |
5760 | ||
5761 | msg = nlmsg_alloc(); | |
5762 | if (!msg) | |
5763 | return -ENOMEM; | |
5764 | ||
5765 | genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, | |
5766 | NL80211_CMD_SET_BSS, 0); | |
5767 | ||
5768 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
5769 | NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, !enabled); | |
5770 | ||
5771 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
5772 | nla_put_failure: | |
5773 | return -ENOBUFS; | |
5774 | } | |
5775 | ||
5776 | ||
3f5285e8 JM |
5777 | const struct wpa_driver_ops wpa_driver_nl80211_ops = { |
5778 | .name = "nl80211", | |
5779 | .desc = "Linux nl80211/cfg80211", | |
5780 | .get_bssid = wpa_driver_nl80211_get_bssid, | |
5781 | .get_ssid = wpa_driver_nl80211_get_ssid, | |
3f5285e8 | 5782 | .set_key = wpa_driver_nl80211_set_key, |
6a1063e0 | 5783 | .scan2 = wpa_driver_nl80211_scan, |
3f5285e8 JM |
5784 | .get_scan_results2 = wpa_driver_nl80211_get_scan_results, |
5785 | .deauthenticate = wpa_driver_nl80211_deauthenticate, | |
5786 | .disassociate = wpa_driver_nl80211_disassociate, | |
c2a04078 | 5787 | .authenticate = wpa_driver_nl80211_authenticate, |
3f5285e8 | 5788 | .associate = wpa_driver_nl80211_associate, |
3f5285e8 JM |
5789 | .init = wpa_driver_nl80211_init, |
5790 | .deinit = wpa_driver_nl80211_deinit, | |
3f5285e8 JM |
5791 | .get_capa = wpa_driver_nl80211_get_capa, |
5792 | .set_operstate = wpa_driver_nl80211_set_operstate, | |
01652550 | 5793 | .set_supp_port = wpa_driver_nl80211_set_supp_port, |
6d158490 | 5794 | .set_country = wpa_driver_nl80211_set_country, |
d2440ba0 | 5795 | .set_beacon = wpa_driver_nl80211_set_beacon, |
22a7c9d7 JM |
5796 | .if_add = wpa_driver_nl80211_if_add, |
5797 | .if_remove = wpa_driver_nl80211_if_remove, | |
071f8ac4 | 5798 | .send_mlme = wpa_driver_nl80211_send_mlme, |
c3965310 | 5799 | .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, |
0f4e8b4f JM |
5800 | .sta_add = wpa_driver_nl80211_sta_add, |
5801 | .sta_remove = wpa_driver_nl80211_sta_remove, | |
db149ac9 | 5802 | .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, |
a8d6ffa4 | 5803 | .sta_set_flags = wpa_driver_nl80211_sta_set_flags, |
c5121837 JM |
5804 | #ifdef HOSTAPD |
5805 | .hapd_init = i802_init, | |
c5121837 | 5806 | .hapd_deinit = i802_deinit, |
c5121837 JM |
5807 | .get_seqnum = i802_get_seqnum, |
5808 | .flush = i802_flush, | |
5809 | .read_sta_data = i802_read_sta_data, | |
c5121837 JM |
5810 | .sta_deauth = i802_sta_deauth, |
5811 | .sta_disassoc = i802_sta_disassoc, | |
c5121837 JM |
5812 | .get_inact_sec = i802_get_inact_sec, |
5813 | .sta_clear_stats = i802_sta_clear_stats, | |
c5121837 JM |
5814 | .set_rts = i802_set_rts, |
5815 | .set_frag = i802_set_frag, | |
c5121837 | 5816 | .set_rate_sets = i802_set_rate_sets, |
c5121837 JM |
5817 | .set_cts_protect = i802_set_cts_protect, |
5818 | .set_preamble = i802_set_preamble, | |
5819 | .set_short_slot_time = i802_set_short_slot_time, | |
5820 | .set_tx_queue_params = i802_set_tx_queue_params, | |
c5121837 | 5821 | .set_sta_vlan = i802_set_sta_vlan, |
fbbfcbac | 5822 | .set_wds_sta = i802_set_wds_sta, |
c5121837 | 5823 | #endif /* HOSTAPD */ |
e3802622 | 5824 | .set_freq = i802_set_freq, |
58f6fbe0 | 5825 | .send_action = wpa_driver_nl80211_send_action, |
55777702 JM |
5826 | .remain_on_channel = wpa_driver_nl80211_remain_on_channel, |
5827 | .cancel_remain_on_channel = | |
5828 | wpa_driver_nl80211_cancel_remain_on_channel, | |
504e905c | 5829 | .probe_req_report = wpa_driver_nl80211_probe_req_report, |
4e5cb1a3 | 5830 | .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates, |
af473088 | 5831 | .deinit_ap = wpa_driver_nl80211_deinit_ap, |
207ef3fb | 5832 | .resume = wpa_driver_nl80211_resume, |
7b90c16a | 5833 | .send_ft_action = nl80211_send_ft_action, |
b625473c | 5834 | .signal_monitor = nl80211_signal_monitor, |
b91ab76e | 5835 | .send_frame = nl80211_send_frame, |
6ee04cfc | 5836 | .set_intra_bss = nl80211_set_intra_bss, |
3f5285e8 | 5837 | }; |