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1 | /* | |
2 | * Driver interaction with Linux nl80211/cfg80211 | |
3 | * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi> | |
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> | |
7 | * Copyright (c) 2009-2010, Atheros Communications | |
8 | * | |
9 | * This software may be distributed under the terms of the BSD license. | |
10 | * See README for more details. | |
11 | */ | |
12 | ||
13 | #include "includes.h" | |
14 | #include <sys/ioctl.h> | |
15 | #include <sys/types.h> | |
16 | #include <sys/stat.h> | |
17 | #include <fcntl.h> | |
18 | #include <net/if.h> | |
19 | #include <netlink/genl/genl.h> | |
20 | #include <netlink/genl/family.h> | |
21 | #include <netlink/genl/ctrl.h> | |
22 | #include <linux/rtnetlink.h> | |
23 | #include <netpacket/packet.h> | |
24 | #include <linux/filter.h> | |
25 | #include <linux/errqueue.h> | |
26 | #include "nl80211_copy.h" | |
27 | ||
28 | #include "common.h" | |
29 | #include "eloop.h" | |
30 | #include "utils/list.h" | |
31 | #include "common/ieee802_11_defs.h" | |
32 | #include "common/ieee802_11_common.h" | |
33 | #include "l2_packet/l2_packet.h" | |
34 | #include "netlink.h" | |
35 | #include "linux_ioctl.h" | |
36 | #include "radiotap.h" | |
37 | #include "radiotap_iter.h" | |
38 | #include "rfkill.h" | |
39 | #include "driver.h" | |
40 | ||
41 | #ifndef SO_WIFI_STATUS | |
42 | # if defined(__sparc__) | |
43 | # define SO_WIFI_STATUS 0x0025 | |
44 | # elif defined(__parisc__) | |
45 | # define SO_WIFI_STATUS 0x4022 | |
46 | # else | |
47 | # define SO_WIFI_STATUS 41 | |
48 | # endif | |
49 | ||
50 | # define SCM_WIFI_STATUS SO_WIFI_STATUS | |
51 | #endif | |
52 | ||
53 | #ifndef SO_EE_ORIGIN_TXSTATUS | |
54 | #define SO_EE_ORIGIN_TXSTATUS 4 | |
55 | #endif | |
56 | ||
57 | #ifndef PACKET_TX_TIMESTAMP | |
58 | #define PACKET_TX_TIMESTAMP 16 | |
59 | #endif | |
60 | ||
61 | #ifdef ANDROID | |
62 | #include "android_drv.h" | |
63 | ||
64 | /* system/core/libnl_2 in AOSP does not include nla_put_u32() */ | |
65 | int nla_put_u32(struct nl_msg *msg, int attrtype, uint32_t value) | |
66 | { | |
67 | return nla_put(msg, attrtype, sizeof(uint32_t), &value); | |
68 | } | |
69 | #endif /* ANDROID */ | |
70 | #ifdef CONFIG_LIBNL20 | |
71 | /* libnl 2.0 compatibility code */ | |
72 | #define nl_handle nl_sock | |
73 | #define nl80211_handle_alloc nl_socket_alloc_cb | |
74 | #define nl80211_handle_destroy nl_socket_free | |
75 | #else | |
76 | /* | |
77 | * libnl 1.1 has a bug, it tries to allocate socket numbers densely | |
78 | * but when you free a socket again it will mess up its bitmap and | |
79 | * and use the wrong number the next time it needs a socket ID. | |
80 | * Therefore, we wrap the handle alloc/destroy and add our own pid | |
81 | * accounting. | |
82 | */ | |
83 | static uint32_t port_bitmap[32] = { 0 }; | |
84 | ||
85 | static struct nl_handle *nl80211_handle_alloc(void *cb) | |
86 | { | |
87 | struct nl_handle *handle; | |
88 | uint32_t pid = getpid() & 0x3FFFFF; | |
89 | int i; | |
90 | ||
91 | handle = nl_handle_alloc_cb(cb); | |
92 | ||
93 | for (i = 0; i < 1024; i++) { | |
94 | if (port_bitmap[i / 32] & (1 << (i % 32))) | |
95 | continue; | |
96 | port_bitmap[i / 32] |= 1 << (i % 32); | |
97 | pid += i << 22; | |
98 | break; | |
99 | } | |
100 | ||
101 | nl_socket_set_local_port(handle, pid); | |
102 | ||
103 | return handle; | |
104 | } | |
105 | ||
106 | static void nl80211_handle_destroy(struct nl_handle *handle) | |
107 | { | |
108 | uint32_t port = nl_socket_get_local_port(handle); | |
109 | ||
110 | port >>= 22; | |
111 | port_bitmap[port / 32] &= ~(1 << (port % 32)); | |
112 | ||
113 | nl_handle_destroy(handle); | |
114 | } | |
115 | #endif /* CONFIG_LIBNL20 */ | |
116 | ||
117 | ||
118 | static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) | |
119 | { | |
120 | struct nl_handle *handle; | |
121 | ||
122 | handle = nl80211_handle_alloc(cb); | |
123 | if (handle == NULL) { | |
124 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " | |
125 | "callbacks (%s)", dbg); | |
126 | return NULL; | |
127 | } | |
128 | ||
129 | if (genl_connect(handle)) { | |
130 | wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " | |
131 | "netlink (%s)", dbg); | |
132 | nl80211_handle_destroy(handle); | |
133 | return NULL; | |
134 | } | |
135 | ||
136 | return handle; | |
137 | } | |
138 | ||
139 | ||
140 | static void nl_destroy_handles(struct nl_handle **handle) | |
141 | { | |
142 | if (*handle == NULL) | |
143 | return; | |
144 | nl80211_handle_destroy(*handle); | |
145 | *handle = NULL; | |
146 | } | |
147 | ||
148 | ||
149 | #ifndef IFF_LOWER_UP | |
150 | #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ | |
151 | #endif | |
152 | #ifndef IFF_DORMANT | |
153 | #define IFF_DORMANT 0x20000 /* driver signals dormant */ | |
154 | #endif | |
155 | ||
156 | #ifndef IF_OPER_DORMANT | |
157 | #define IF_OPER_DORMANT 5 | |
158 | #endif | |
159 | #ifndef IF_OPER_UP | |
160 | #define IF_OPER_UP 6 | |
161 | #endif | |
162 | ||
163 | struct nl80211_global { | |
164 | struct dl_list interfaces; | |
165 | int if_add_ifindex; | |
166 | struct netlink_data *netlink; | |
167 | struct nl_cb *nl_cb; | |
168 | struct nl_handle *nl; | |
169 | int nl80211_id; | |
170 | int ioctl_sock; /* socket for ioctl() use */ | |
171 | ||
172 | struct nl_handle *nl_event; | |
173 | }; | |
174 | ||
175 | struct nl80211_wiphy_data { | |
176 | struct dl_list list; | |
177 | struct dl_list bsss; | |
178 | struct dl_list drvs; | |
179 | ||
180 | struct nl_handle *nl_beacons; | |
181 | struct nl_cb *nl_cb; | |
182 | ||
183 | int wiphy_idx; | |
184 | }; | |
185 | ||
186 | static void nl80211_global_deinit(void *priv); | |
187 | static void wpa_driver_nl80211_deinit(void *priv); | |
188 | ||
189 | struct i802_bss { | |
190 | struct wpa_driver_nl80211_data *drv; | |
191 | struct i802_bss *next; | |
192 | int ifindex; | |
193 | char ifname[IFNAMSIZ + 1]; | |
194 | char brname[IFNAMSIZ]; | |
195 | unsigned int beacon_set:1; | |
196 | unsigned int added_if_into_bridge:1; | |
197 | unsigned int added_bridge:1; | |
198 | unsigned int in_deinit:1; | |
199 | ||
200 | u8 addr[ETH_ALEN]; | |
201 | ||
202 | int freq; | |
203 | ||
204 | void *ctx; | |
205 | struct nl_handle *nl_preq, *nl_mgmt; | |
206 | struct nl_cb *nl_cb; | |
207 | ||
208 | struct nl80211_wiphy_data *wiphy_data; | |
209 | struct dl_list wiphy_list; | |
210 | }; | |
211 | ||
212 | struct wpa_driver_nl80211_data { | |
213 | struct nl80211_global *global; | |
214 | struct dl_list list; | |
215 | struct dl_list wiphy_list; | |
216 | char phyname[32]; | |
217 | void *ctx; | |
218 | int ifindex; | |
219 | int if_removed; | |
220 | int if_disabled; | |
221 | int ignore_if_down_event; | |
222 | struct rfkill_data *rfkill; | |
223 | struct wpa_driver_capa capa; | |
224 | int has_capability; | |
225 | ||
226 | int operstate; | |
227 | ||
228 | int scan_complete_events; | |
229 | ||
230 | struct nl_cb *nl_cb; | |
231 | ||
232 | u8 auth_bssid[ETH_ALEN]; | |
233 | u8 bssid[ETH_ALEN]; | |
234 | int associated; | |
235 | u8 ssid[32]; | |
236 | size_t ssid_len; | |
237 | enum nl80211_iftype nlmode; | |
238 | enum nl80211_iftype ap_scan_as_station; | |
239 | unsigned int assoc_freq; | |
240 | ||
241 | int monitor_sock; | |
242 | int monitor_ifidx; | |
243 | int monitor_refcount; | |
244 | ||
245 | unsigned int disabled_11b_rates:1; | |
246 | unsigned int pending_remain_on_chan:1; | |
247 | unsigned int in_interface_list:1; | |
248 | unsigned int device_ap_sme:1; | |
249 | unsigned int poll_command_supported:1; | |
250 | unsigned int data_tx_status:1; | |
251 | unsigned int scan_for_auth:1; | |
252 | unsigned int retry_auth:1; | |
253 | unsigned int use_monitor:1; | |
254 | unsigned int ignore_next_local_disconnect:1; | |
255 | ||
256 | u64 remain_on_chan_cookie; | |
257 | u64 send_action_cookie; | |
258 | ||
259 | unsigned int last_mgmt_freq; | |
260 | ||
261 | struct wpa_driver_scan_filter *filter_ssids; | |
262 | size_t num_filter_ssids; | |
263 | ||
264 | struct i802_bss first_bss; | |
265 | ||
266 | int eapol_tx_sock; | |
267 | ||
268 | #ifdef HOSTAPD | |
269 | int eapol_sock; /* socket for EAPOL frames */ | |
270 | ||
271 | int default_if_indices[16]; | |
272 | int *if_indices; | |
273 | int num_if_indices; | |
274 | ||
275 | int last_freq; | |
276 | int last_freq_ht; | |
277 | #endif /* HOSTAPD */ | |
278 | ||
279 | /* From failed authentication command */ | |
280 | int auth_freq; | |
281 | u8 auth_bssid_[ETH_ALEN]; | |
282 | u8 auth_ssid[32]; | |
283 | size_t auth_ssid_len; | |
284 | int auth_alg; | |
285 | u8 *auth_ie; | |
286 | size_t auth_ie_len; | |
287 | u8 auth_wep_key[4][16]; | |
288 | size_t auth_wep_key_len[4]; | |
289 | int auth_wep_tx_keyidx; | |
290 | int auth_local_state_change; | |
291 | int auth_p2p; | |
292 | }; | |
293 | ||
294 | ||
295 | static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, | |
296 | void *timeout_ctx); | |
297 | static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, | |
298 | enum nl80211_iftype nlmode); | |
299 | static int | |
300 | wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); | |
301 | static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, | |
302 | const u8 *addr, int cmd, u16 reason_code, | |
303 | int local_state_change); | |
304 | static void nl80211_remove_monitor_interface( | |
305 | struct wpa_driver_nl80211_data *drv); | |
306 | static int nl80211_send_frame_cmd(struct i802_bss *bss, | |
307 | unsigned int freq, unsigned int wait, | |
308 | const u8 *buf, size_t buf_len, u64 *cookie, | |
309 | int no_cck, int no_ack, int offchanok); | |
310 | static int wpa_driver_nl80211_probe_req_report(void *priv, int report); | |
311 | #ifdef ANDROID | |
312 | static int android_pno_start(struct i802_bss *bss, | |
313 | struct wpa_driver_scan_params *params); | |
314 | static int android_pno_stop(struct i802_bss *bss); | |
315 | #endif /* ANDROID */ | |
316 | ||
317 | #ifdef HOSTAPD | |
318 | static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); | |
319 | static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); | |
320 | static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); | |
321 | static int wpa_driver_nl80211_if_remove(void *priv, | |
322 | enum wpa_driver_if_type type, | |
323 | const char *ifname); | |
324 | #else /* HOSTAPD */ | |
325 | static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
326 | { | |
327 | } | |
328 | ||
329 | static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
330 | { | |
331 | } | |
332 | ||
333 | static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
334 | { | |
335 | return 0; | |
336 | } | |
337 | #endif /* HOSTAPD */ | |
338 | ||
339 | static int i802_set_freq(void *priv, struct hostapd_freq_params *freq); | |
340 | static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, | |
341 | int ifindex, int disabled); | |
342 | ||
343 | static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); | |
344 | static int wpa_driver_nl80211_authenticate_retry( | |
345 | struct wpa_driver_nl80211_data *drv); | |
346 | ||
347 | ||
348 | static int is_ap_interface(enum nl80211_iftype nlmode) | |
349 | { | |
350 | return (nlmode == NL80211_IFTYPE_AP || | |
351 | nlmode == NL80211_IFTYPE_P2P_GO); | |
352 | } | |
353 | ||
354 | ||
355 | static int is_sta_interface(enum nl80211_iftype nlmode) | |
356 | { | |
357 | return (nlmode == NL80211_IFTYPE_STATION || | |
358 | nlmode == NL80211_IFTYPE_P2P_CLIENT); | |
359 | } | |
360 | ||
361 | ||
362 | static int is_p2p_interface(enum nl80211_iftype nlmode) | |
363 | { | |
364 | return (nlmode == NL80211_IFTYPE_P2P_CLIENT || | |
365 | nlmode == NL80211_IFTYPE_P2P_GO); | |
366 | } | |
367 | ||
368 | ||
369 | struct nl80211_bss_info_arg { | |
370 | struct wpa_driver_nl80211_data *drv; | |
371 | struct wpa_scan_results *res; | |
372 | unsigned int assoc_freq; | |
373 | u8 assoc_bssid[ETH_ALEN]; | |
374 | }; | |
375 | ||
376 | static int bss_info_handler(struct nl_msg *msg, void *arg); | |
377 | ||
378 | ||
379 | /* nl80211 code */ | |
380 | static int ack_handler(struct nl_msg *msg, void *arg) | |
381 | { | |
382 | int *err = arg; | |
383 | *err = 0; | |
384 | return NL_STOP; | |
385 | } | |
386 | ||
387 | static int finish_handler(struct nl_msg *msg, void *arg) | |
388 | { | |
389 | int *ret = arg; | |
390 | *ret = 0; | |
391 | return NL_SKIP; | |
392 | } | |
393 | ||
394 | static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, | |
395 | void *arg) | |
396 | { | |
397 | int *ret = arg; | |
398 | *ret = err->error; | |
399 | return NL_SKIP; | |
400 | } | |
401 | ||
402 | ||
403 | static int no_seq_check(struct nl_msg *msg, void *arg) | |
404 | { | |
405 | return NL_OK; | |
406 | } | |
407 | ||
408 | ||
409 | static int send_and_recv(struct nl80211_global *global, | |
410 | struct nl_handle *nl_handle, struct nl_msg *msg, | |
411 | int (*valid_handler)(struct nl_msg *, void *), | |
412 | void *valid_data) | |
413 | { | |
414 | struct nl_cb *cb; | |
415 | int err = -ENOMEM; | |
416 | ||
417 | cb = nl_cb_clone(global->nl_cb); | |
418 | if (!cb) | |
419 | goto out; | |
420 | ||
421 | err = nl_send_auto_complete(nl_handle, msg); | |
422 | if (err < 0) | |
423 | goto out; | |
424 | ||
425 | err = 1; | |
426 | ||
427 | nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); | |
428 | nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); | |
429 | nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); | |
430 | ||
431 | if (valid_handler) | |
432 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, | |
433 | valid_handler, valid_data); | |
434 | ||
435 | while (err > 0) | |
436 | nl_recvmsgs(nl_handle, cb); | |
437 | out: | |
438 | nl_cb_put(cb); | |
439 | nlmsg_free(msg); | |
440 | return err; | |
441 | } | |
442 | ||
443 | ||
444 | static int send_and_recv_msgs_global(struct nl80211_global *global, | |
445 | struct nl_msg *msg, | |
446 | int (*valid_handler)(struct nl_msg *, void *), | |
447 | void *valid_data) | |
448 | { | |
449 | return send_and_recv(global, global->nl, msg, valid_handler, | |
450 | valid_data); | |
451 | } | |
452 | ||
453 | ||
454 | static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, | |
455 | struct nl_msg *msg, | |
456 | int (*valid_handler)(struct nl_msg *, void *), | |
457 | void *valid_data) | |
458 | { | |
459 | return send_and_recv(drv->global, drv->global->nl, msg, | |
460 | valid_handler, valid_data); | |
461 | } | |
462 | ||
463 | ||
464 | struct family_data { | |
465 | const char *group; | |
466 | int id; | |
467 | }; | |
468 | ||
469 | ||
470 | static int family_handler(struct nl_msg *msg, void *arg) | |
471 | { | |
472 | struct family_data *res = arg; | |
473 | struct nlattr *tb[CTRL_ATTR_MAX + 1]; | |
474 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
475 | struct nlattr *mcgrp; | |
476 | int i; | |
477 | ||
478 | nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
479 | genlmsg_attrlen(gnlh, 0), NULL); | |
480 | if (!tb[CTRL_ATTR_MCAST_GROUPS]) | |
481 | return NL_SKIP; | |
482 | ||
483 | nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { | |
484 | struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; | |
485 | nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), | |
486 | nla_len(mcgrp), NULL); | |
487 | if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || | |
488 | !tb2[CTRL_ATTR_MCAST_GRP_ID] || | |
489 | os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), | |
490 | res->group, | |
491 | nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) | |
492 | continue; | |
493 | res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); | |
494 | break; | |
495 | }; | |
496 | ||
497 | return NL_SKIP; | |
498 | } | |
499 | ||
500 | ||
501 | static int nl_get_multicast_id(struct nl80211_global *global, | |
502 | const char *family, const char *group) | |
503 | { | |
504 | struct nl_msg *msg; | |
505 | int ret = -1; | |
506 | struct family_data res = { group, -ENOENT }; | |
507 | ||
508 | msg = nlmsg_alloc(); | |
509 | if (!msg) | |
510 | return -ENOMEM; | |
511 | genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), | |
512 | 0, 0, CTRL_CMD_GETFAMILY, 0); | |
513 | NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); | |
514 | ||
515 | ret = send_and_recv_msgs_global(global, msg, family_handler, &res); | |
516 | msg = NULL; | |
517 | if (ret == 0) | |
518 | ret = res.id; | |
519 | ||
520 | nla_put_failure: | |
521 | nlmsg_free(msg); | |
522 | return ret; | |
523 | } | |
524 | ||
525 | ||
526 | static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, | |
527 | struct nl_msg *msg, int flags, uint8_t cmd) | |
528 | { | |
529 | return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, | |
530 | 0, flags, cmd, 0); | |
531 | } | |
532 | ||
533 | ||
534 | struct wiphy_idx_data { | |
535 | int wiphy_idx; | |
536 | }; | |
537 | ||
538 | ||
539 | static int netdev_info_handler(struct nl_msg *msg, void *arg) | |
540 | { | |
541 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
542 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
543 | struct wiphy_idx_data *info = arg; | |
544 | ||
545 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
546 | genlmsg_attrlen(gnlh, 0), NULL); | |
547 | ||
548 | if (tb[NL80211_ATTR_WIPHY]) | |
549 | info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); | |
550 | ||
551 | return NL_SKIP; | |
552 | } | |
553 | ||
554 | ||
555 | static int nl80211_get_wiphy_index(struct i802_bss *bss) | |
556 | { | |
557 | struct nl_msg *msg; | |
558 | struct wiphy_idx_data data = { | |
559 | .wiphy_idx = -1, | |
560 | }; | |
561 | ||
562 | msg = nlmsg_alloc(); | |
563 | if (!msg) | |
564 | return -1; | |
565 | ||
566 | nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); | |
567 | ||
568 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
569 | ||
570 | if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) | |
571 | return data.wiphy_idx; | |
572 | msg = NULL; | |
573 | nla_put_failure: | |
574 | nlmsg_free(msg); | |
575 | return -1; | |
576 | } | |
577 | ||
578 | ||
579 | static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, | |
580 | struct nl80211_wiphy_data *w) | |
581 | { | |
582 | struct nl_msg *msg; | |
583 | int ret = -1; | |
584 | ||
585 | msg = nlmsg_alloc(); | |
586 | if (!msg) | |
587 | return -1; | |
588 | ||
589 | nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); | |
590 | ||
591 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); | |
592 | ||
593 | ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); | |
594 | msg = NULL; | |
595 | if (ret) { | |
596 | wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " | |
597 | "failed: ret=%d (%s)", | |
598 | ret, strerror(-ret)); | |
599 | goto nla_put_failure; | |
600 | } | |
601 | ret = 0; | |
602 | nla_put_failure: | |
603 | nlmsg_free(msg); | |
604 | return ret; | |
605 | } | |
606 | ||
607 | ||
608 | static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) | |
609 | { | |
610 | struct nl80211_wiphy_data *w = eloop_ctx; | |
611 | ||
612 | wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); | |
613 | ||
614 | nl_recvmsgs(handle, w->nl_cb); | |
615 | } | |
616 | ||
617 | ||
618 | static int process_beacon_event(struct nl_msg *msg, void *arg) | |
619 | { | |
620 | struct nl80211_wiphy_data *w = arg; | |
621 | struct wpa_driver_nl80211_data *drv; | |
622 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
623 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
624 | union wpa_event_data event; | |
625 | ||
626 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
627 | genlmsg_attrlen(gnlh, 0), NULL); | |
628 | ||
629 | if (gnlh->cmd != NL80211_CMD_FRAME) { | |
630 | wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", | |
631 | gnlh->cmd); | |
632 | return NL_SKIP; | |
633 | } | |
634 | ||
635 | if (!tb[NL80211_ATTR_FRAME]) | |
636 | return NL_SKIP; | |
637 | ||
638 | dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, | |
639 | wiphy_list) { | |
640 | os_memset(&event, 0, sizeof(event)); | |
641 | event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); | |
642 | event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); | |
643 | wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); | |
644 | } | |
645 | ||
646 | return NL_SKIP; | |
647 | } | |
648 | ||
649 | ||
650 | static struct nl80211_wiphy_data * | |
651 | nl80211_get_wiphy_data_ap(struct i802_bss *bss) | |
652 | { | |
653 | static DEFINE_DL_LIST(nl80211_wiphys); | |
654 | struct nl80211_wiphy_data *w; | |
655 | int wiphy_idx, found = 0; | |
656 | struct i802_bss *tmp_bss; | |
657 | ||
658 | if (bss->wiphy_data != NULL) | |
659 | return bss->wiphy_data; | |
660 | ||
661 | wiphy_idx = nl80211_get_wiphy_index(bss); | |
662 | ||
663 | dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { | |
664 | if (w->wiphy_idx == wiphy_idx) | |
665 | goto add; | |
666 | } | |
667 | ||
668 | /* alloc new one */ | |
669 | w = os_zalloc(sizeof(*w)); | |
670 | if (w == NULL) | |
671 | return NULL; | |
672 | w->wiphy_idx = wiphy_idx; | |
673 | dl_list_init(&w->bsss); | |
674 | dl_list_init(&w->drvs); | |
675 | ||
676 | w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); | |
677 | if (!w->nl_cb) { | |
678 | os_free(w); | |
679 | return NULL; | |
680 | } | |
681 | nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); | |
682 | nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, | |
683 | w); | |
684 | ||
685 | w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, | |
686 | "wiphy beacons"); | |
687 | if (w->nl_beacons == NULL) { | |
688 | os_free(w); | |
689 | return NULL; | |
690 | } | |
691 | ||
692 | if (nl80211_register_beacons(bss->drv, w)) { | |
693 | nl_destroy_handles(&w->nl_beacons); | |
694 | os_free(w); | |
695 | return NULL; | |
696 | } | |
697 | ||
698 | eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons), | |
699 | nl80211_recv_beacons, w, w->nl_beacons); | |
700 | ||
701 | dl_list_add(&nl80211_wiphys, &w->list); | |
702 | ||
703 | add: | |
704 | /* drv entry for this bss already there? */ | |
705 | dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { | |
706 | if (tmp_bss->drv == bss->drv) { | |
707 | found = 1; | |
708 | break; | |
709 | } | |
710 | } | |
711 | /* if not add it */ | |
712 | if (!found) | |
713 | dl_list_add(&w->drvs, &bss->drv->wiphy_list); | |
714 | ||
715 | dl_list_add(&w->bsss, &bss->wiphy_list); | |
716 | bss->wiphy_data = w; | |
717 | return w; | |
718 | } | |
719 | ||
720 | ||
721 | static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) | |
722 | { | |
723 | struct nl80211_wiphy_data *w = bss->wiphy_data; | |
724 | struct i802_bss *tmp_bss; | |
725 | int found = 0; | |
726 | ||
727 | if (w == NULL) | |
728 | return; | |
729 | bss->wiphy_data = NULL; | |
730 | dl_list_del(&bss->wiphy_list); | |
731 | ||
732 | /* still any for this drv present? */ | |
733 | dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { | |
734 | if (tmp_bss->drv == bss->drv) { | |
735 | found = 1; | |
736 | break; | |
737 | } | |
738 | } | |
739 | /* if not remove it */ | |
740 | if (!found) | |
741 | dl_list_del(&bss->drv->wiphy_list); | |
742 | ||
743 | if (!dl_list_empty(&w->bsss)) | |
744 | return; | |
745 | ||
746 | eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons)); | |
747 | ||
748 | nl_cb_put(w->nl_cb); | |
749 | nl_destroy_handles(&w->nl_beacons); | |
750 | dl_list_del(&w->list); | |
751 | os_free(w); | |
752 | } | |
753 | ||
754 | ||
755 | static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) | |
756 | { | |
757 | struct i802_bss *bss = priv; | |
758 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
759 | if (!drv->associated) | |
760 | return -1; | |
761 | os_memcpy(bssid, drv->bssid, ETH_ALEN); | |
762 | return 0; | |
763 | } | |
764 | ||
765 | ||
766 | static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) | |
767 | { | |
768 | struct i802_bss *bss = priv; | |
769 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
770 | if (!drv->associated) | |
771 | return -1; | |
772 | os_memcpy(ssid, drv->ssid, drv->ssid_len); | |
773 | return drv->ssid_len; | |
774 | } | |
775 | ||
776 | ||
777 | static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, | |
778 | char *buf, size_t len, int del) | |
779 | { | |
780 | union wpa_event_data event; | |
781 | ||
782 | os_memset(&event, 0, sizeof(event)); | |
783 | if (len > sizeof(event.interface_status.ifname)) | |
784 | len = sizeof(event.interface_status.ifname) - 1; | |
785 | os_memcpy(event.interface_status.ifname, buf, len); | |
786 | event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : | |
787 | EVENT_INTERFACE_ADDED; | |
788 | ||
789 | wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", | |
790 | del ? "DEL" : "NEW", | |
791 | event.interface_status.ifname, | |
792 | del ? "removed" : "added"); | |
793 | ||
794 | if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { | |
795 | if (del) { | |
796 | if (drv->if_removed) { | |
797 | wpa_printf(MSG_DEBUG, "nl80211: if_removed " | |
798 | "already set - ignore event"); | |
799 | return; | |
800 | } | |
801 | drv->if_removed = 1; | |
802 | } else { | |
803 | if (if_nametoindex(drv->first_bss.ifname) == 0) { | |
804 | wpa_printf(MSG_DEBUG, "nl80211: Interface %s " | |
805 | "does not exist - ignore " | |
806 | "RTM_NEWLINK", | |
807 | drv->first_bss.ifname); | |
808 | return; | |
809 | } | |
810 | if (!drv->if_removed) { | |
811 | wpa_printf(MSG_DEBUG, "nl80211: if_removed " | |
812 | "already cleared - ignore event"); | |
813 | return; | |
814 | } | |
815 | drv->if_removed = 0; | |
816 | } | |
817 | } | |
818 | ||
819 | wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); | |
820 | } | |
821 | ||
822 | ||
823 | static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, | |
824 | u8 *buf, size_t len) | |
825 | { | |
826 | int attrlen, rta_len; | |
827 | struct rtattr *attr; | |
828 | ||
829 | attrlen = len; | |
830 | attr = (struct rtattr *) buf; | |
831 | ||
832 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); | |
833 | while (RTA_OK(attr, attrlen)) { | |
834 | if (attr->rta_type == IFLA_IFNAME) { | |
835 | if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) | |
836 | == 0) | |
837 | return 1; | |
838 | else | |
839 | break; | |
840 | } | |
841 | attr = RTA_NEXT(attr, attrlen); | |
842 | } | |
843 | ||
844 | return 0; | |
845 | } | |
846 | ||
847 | ||
848 | static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, | |
849 | int ifindex, u8 *buf, size_t len) | |
850 | { | |
851 | if (drv->ifindex == ifindex) | |
852 | return 1; | |
853 | ||
854 | if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { | |
855 | drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname); | |
856 | wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " | |
857 | "interface"); | |
858 | wpa_driver_nl80211_finish_drv_init(drv); | |
859 | return 1; | |
860 | } | |
861 | ||
862 | return 0; | |
863 | } | |
864 | ||
865 | ||
866 | static struct wpa_driver_nl80211_data * | |
867 | nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) | |
868 | { | |
869 | struct wpa_driver_nl80211_data *drv; | |
870 | dl_list_for_each(drv, &global->interfaces, | |
871 | struct wpa_driver_nl80211_data, list) { | |
872 | if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || | |
873 | have_ifidx(drv, idx)) | |
874 | return drv; | |
875 | } | |
876 | return NULL; | |
877 | } | |
878 | ||
879 | ||
880 | static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, | |
881 | struct ifinfomsg *ifi, | |
882 | u8 *buf, size_t len) | |
883 | { | |
884 | struct nl80211_global *global = ctx; | |
885 | struct wpa_driver_nl80211_data *drv; | |
886 | int attrlen, rta_len; | |
887 | struct rtattr *attr; | |
888 | u32 brid = 0; | |
889 | char namebuf[IFNAMSIZ]; | |
890 | ||
891 | drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); | |
892 | if (!drv) { | |
893 | wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " | |
894 | "ifindex %d", ifi->ifi_index); | |
895 | return; | |
896 | } | |
897 | ||
898 | wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " | |
899 | "(%s%s%s%s)", | |
900 | drv->operstate, ifi->ifi_flags, | |
901 | (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", | |
902 | (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", | |
903 | (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", | |
904 | (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); | |
905 | ||
906 | if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { | |
907 | if (if_indextoname(ifi->ifi_index, namebuf) && | |
908 | linux_iface_up(drv->global->ioctl_sock, | |
909 | drv->first_bss.ifname) > 0) { | |
910 | wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " | |
911 | "event since interface %s is up", namebuf); | |
912 | return; | |
913 | } | |
914 | wpa_printf(MSG_DEBUG, "nl80211: Interface down"); | |
915 | if (drv->ignore_if_down_event) { | |
916 | wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " | |
917 | "event generated by mode change"); | |
918 | drv->ignore_if_down_event = 0; | |
919 | } else { | |
920 | drv->if_disabled = 1; | |
921 | wpa_supplicant_event(drv->ctx, | |
922 | EVENT_INTERFACE_DISABLED, NULL); | |
923 | } | |
924 | } | |
925 | ||
926 | if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { | |
927 | if (if_indextoname(ifi->ifi_index, namebuf) && | |
928 | linux_iface_up(drv->global->ioctl_sock, | |
929 | drv->first_bss.ifname) == 0) { | |
930 | wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " | |
931 | "event since interface %s is down", | |
932 | namebuf); | |
933 | } else if (if_nametoindex(drv->first_bss.ifname) == 0) { | |
934 | wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " | |
935 | "event since interface %s does not exist", | |
936 | drv->first_bss.ifname); | |
937 | } else if (drv->if_removed) { | |
938 | wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " | |
939 | "event since interface %s is marked " | |
940 | "removed", drv->first_bss.ifname); | |
941 | } else { | |
942 | wpa_printf(MSG_DEBUG, "nl80211: Interface up"); | |
943 | drv->if_disabled = 0; | |
944 | wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, | |
945 | NULL); | |
946 | } | |
947 | } | |
948 | ||
949 | /* | |
950 | * Some drivers send the association event before the operup event--in | |
951 | * this case, lifting operstate in wpa_driver_nl80211_set_operstate() | |
952 | * fails. This will hit us when wpa_supplicant does not need to do | |
953 | * IEEE 802.1X authentication | |
954 | */ | |
955 | if (drv->operstate == 1 && | |
956 | (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && | |
957 | !(ifi->ifi_flags & IFF_RUNNING)) | |
958 | netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, | |
959 | -1, IF_OPER_UP); | |
960 | ||
961 | attrlen = len; | |
962 | attr = (struct rtattr *) buf; | |
963 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); | |
964 | while (RTA_OK(attr, attrlen)) { | |
965 | if (attr->rta_type == IFLA_IFNAME) { | |
966 | wpa_driver_nl80211_event_link( | |
967 | drv, | |
968 | ((char *) attr) + rta_len, | |
969 | attr->rta_len - rta_len, 0); | |
970 | } else if (attr->rta_type == IFLA_MASTER) | |
971 | brid = nla_get_u32((struct nlattr *) attr); | |
972 | attr = RTA_NEXT(attr, attrlen); | |
973 | } | |
974 | ||
975 | if (ifi->ifi_family == AF_BRIDGE && brid) { | |
976 | /* device has been added to bridge */ | |
977 | if_indextoname(brid, namebuf); | |
978 | wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", | |
979 | brid, namebuf); | |
980 | add_ifidx(drv, brid); | |
981 | } | |
982 | } | |
983 | ||
984 | ||
985 | static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, | |
986 | struct ifinfomsg *ifi, | |
987 | u8 *buf, size_t len) | |
988 | { | |
989 | struct nl80211_global *global = ctx; | |
990 | struct wpa_driver_nl80211_data *drv; | |
991 | int attrlen, rta_len; | |
992 | struct rtattr *attr; | |
993 | u32 brid = 0; | |
994 | ||
995 | drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); | |
996 | if (!drv) { | |
997 | wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " | |
998 | "foreign ifindex %d", ifi->ifi_index); | |
999 | return; | |
1000 | } | |
1001 | ||
1002 | attrlen = len; | |
1003 | attr = (struct rtattr *) buf; | |
1004 | ||
1005 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); | |
1006 | while (RTA_OK(attr, attrlen)) { | |
1007 | if (attr->rta_type == IFLA_IFNAME) { | |
1008 | wpa_driver_nl80211_event_link( | |
1009 | drv, | |
1010 | ((char *) attr) + rta_len, | |
1011 | attr->rta_len - rta_len, 1); | |
1012 | } else if (attr->rta_type == IFLA_MASTER) | |
1013 | brid = nla_get_u32((struct nlattr *) attr); | |
1014 | attr = RTA_NEXT(attr, attrlen); | |
1015 | } | |
1016 | ||
1017 | if (ifi->ifi_family == AF_BRIDGE && brid) { | |
1018 | /* device has been removed from bridge */ | |
1019 | char namebuf[IFNAMSIZ]; | |
1020 | if_indextoname(brid, namebuf); | |
1021 | wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " | |
1022 | "%s", brid, namebuf); | |
1023 | del_ifidx(drv, brid); | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | ||
1028 | static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, | |
1029 | const u8 *frame, size_t len) | |
1030 | { | |
1031 | const struct ieee80211_mgmt *mgmt; | |
1032 | union wpa_event_data event; | |
1033 | ||
1034 | wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); | |
1035 | mgmt = (const struct ieee80211_mgmt *) frame; | |
1036 | if (len < 24 + sizeof(mgmt->u.auth)) { | |
1037 | wpa_printf(MSG_DEBUG, "nl80211: Too short association event " | |
1038 | "frame"); | |
1039 | return; | |
1040 | } | |
1041 | ||
1042 | os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); | |
1043 | os_memset(&event, 0, sizeof(event)); | |
1044 | os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); | |
1045 | event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); | |
1046 | event.auth.auth_transaction = | |
1047 | le_to_host16(mgmt->u.auth.auth_transaction); | |
1048 | event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); | |
1049 | if (len > 24 + sizeof(mgmt->u.auth)) { | |
1050 | event.auth.ies = mgmt->u.auth.variable; | |
1051 | event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); | |
1052 | } | |
1053 | ||
1054 | wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); | |
1055 | } | |
1056 | ||
1057 | ||
1058 | static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) | |
1059 | { | |
1060 | struct nl_msg *msg; | |
1061 | int ret; | |
1062 | struct nl80211_bss_info_arg arg; | |
1063 | ||
1064 | os_memset(&arg, 0, sizeof(arg)); | |
1065 | msg = nlmsg_alloc(); | |
1066 | if (!msg) | |
1067 | goto nla_put_failure; | |
1068 | ||
1069 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); | |
1070 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1071 | ||
1072 | arg.drv = drv; | |
1073 | ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); | |
1074 | msg = NULL; | |
1075 | if (ret == 0) { | |
1076 | wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " | |
1077 | "associated BSS from scan results: %u MHz", | |
1078 | arg.assoc_freq); | |
1079 | return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq; | |
1080 | } | |
1081 | wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " | |
1082 | "(%s)", ret, strerror(-ret)); | |
1083 | nla_put_failure: | |
1084 | nlmsg_free(msg); | |
1085 | return drv->assoc_freq; | |
1086 | } | |
1087 | ||
1088 | ||
1089 | static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, | |
1090 | const u8 *frame, size_t len) | |
1091 | { | |
1092 | const struct ieee80211_mgmt *mgmt; | |
1093 | union wpa_event_data event; | |
1094 | u16 status; | |
1095 | ||
1096 | wpa_printf(MSG_DEBUG, "nl80211: Associate event"); | |
1097 | mgmt = (const struct ieee80211_mgmt *) frame; | |
1098 | if (len < 24 + sizeof(mgmt->u.assoc_resp)) { | |
1099 | wpa_printf(MSG_DEBUG, "nl80211: Too short association event " | |
1100 | "frame"); | |
1101 | return; | |
1102 | } | |
1103 | ||
1104 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
1105 | if (status != WLAN_STATUS_SUCCESS) { | |
1106 | os_memset(&event, 0, sizeof(event)); | |
1107 | event.assoc_reject.bssid = mgmt->bssid; | |
1108 | if (len > 24 + sizeof(mgmt->u.assoc_resp)) { | |
1109 | event.assoc_reject.resp_ies = | |
1110 | (u8 *) mgmt->u.assoc_resp.variable; | |
1111 | event.assoc_reject.resp_ies_len = | |
1112 | len - 24 - sizeof(mgmt->u.assoc_resp); | |
1113 | } | |
1114 | event.assoc_reject.status_code = status; | |
1115 | ||
1116 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); | |
1117 | return; | |
1118 | } | |
1119 | ||
1120 | drv->associated = 1; | |
1121 | os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); | |
1122 | ||
1123 | os_memset(&event, 0, sizeof(event)); | |
1124 | if (len > 24 + sizeof(mgmt->u.assoc_resp)) { | |
1125 | event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; | |
1126 | event.assoc_info.resp_ies_len = | |
1127 | len - 24 - sizeof(mgmt->u.assoc_resp); | |
1128 | } | |
1129 | ||
1130 | event.assoc_info.freq = drv->assoc_freq; | |
1131 | ||
1132 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); | |
1133 | } | |
1134 | ||
1135 | ||
1136 | static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, | |
1137 | enum nl80211_commands cmd, struct nlattr *status, | |
1138 | struct nlattr *addr, struct nlattr *req_ie, | |
1139 | struct nlattr *resp_ie) | |
1140 | { | |
1141 | union wpa_event_data event; | |
1142 | ||
1143 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { | |
1144 | /* | |
1145 | * Avoid reporting two association events that would confuse | |
1146 | * the core code. | |
1147 | */ | |
1148 | wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " | |
1149 | "when using userspace SME", cmd); | |
1150 | return; | |
1151 | } | |
1152 | ||
1153 | if (cmd == NL80211_CMD_CONNECT) | |
1154 | wpa_printf(MSG_DEBUG, "nl80211: Connect event"); | |
1155 | else if (cmd == NL80211_CMD_ROAM) | |
1156 | wpa_printf(MSG_DEBUG, "nl80211: Roam event"); | |
1157 | ||
1158 | os_memset(&event, 0, sizeof(event)); | |
1159 | if (cmd == NL80211_CMD_CONNECT && | |
1160 | nla_get_u16(status) != WLAN_STATUS_SUCCESS) { | |
1161 | if (addr) | |
1162 | event.assoc_reject.bssid = nla_data(addr); | |
1163 | if (resp_ie) { | |
1164 | event.assoc_reject.resp_ies = nla_data(resp_ie); | |
1165 | event.assoc_reject.resp_ies_len = nla_len(resp_ie); | |
1166 | } | |
1167 | event.assoc_reject.status_code = nla_get_u16(status); | |
1168 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); | |
1169 | return; | |
1170 | } | |
1171 | ||
1172 | drv->associated = 1; | |
1173 | if (addr) | |
1174 | os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); | |
1175 | ||
1176 | if (req_ie) { | |
1177 | event.assoc_info.req_ies = nla_data(req_ie); | |
1178 | event.assoc_info.req_ies_len = nla_len(req_ie); | |
1179 | } | |
1180 | if (resp_ie) { | |
1181 | event.assoc_info.resp_ies = nla_data(resp_ie); | |
1182 | event.assoc_info.resp_ies_len = nla_len(resp_ie); | |
1183 | } | |
1184 | ||
1185 | event.assoc_info.freq = nl80211_get_assoc_freq(drv); | |
1186 | ||
1187 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); | |
1188 | } | |
1189 | ||
1190 | ||
1191 | static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, | |
1192 | struct nlattr *reason, struct nlattr *addr, | |
1193 | struct nlattr *by_ap) | |
1194 | { | |
1195 | union wpa_event_data data; | |
1196 | unsigned int locally_generated = by_ap == NULL; | |
1197 | ||
1198 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { | |
1199 | /* | |
1200 | * Avoid reporting two disassociation events that could | |
1201 | * confuse the core code. | |
1202 | */ | |
1203 | wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " | |
1204 | "event when using userspace SME"); | |
1205 | return; | |
1206 | } | |
1207 | ||
1208 | if (drv->ignore_next_local_disconnect) { | |
1209 | drv->ignore_next_local_disconnect = 0; | |
1210 | if (locally_generated) { | |
1211 | wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " | |
1212 | "event triggered during reassociation"); | |
1213 | return; | |
1214 | } | |
1215 | wpa_printf(MSG_WARNING, "nl80211: Was expecting local " | |
1216 | "disconnect but got another disconnect " | |
1217 | "event first"); | |
1218 | } | |
1219 | ||
1220 | wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); | |
1221 | drv->associated = 0; | |
1222 | os_memset(&data, 0, sizeof(data)); | |
1223 | if (reason) | |
1224 | data.deauth_info.reason_code = nla_get_u16(reason); | |
1225 | data.deauth_info.locally_generated = by_ap == NULL; | |
1226 | wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); | |
1227 | } | |
1228 | ||
1229 | ||
1230 | static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, | |
1231 | struct nlattr *freq, struct nlattr *type) | |
1232 | { | |
1233 | union wpa_event_data data; | |
1234 | int ht_enabled = 1; | |
1235 | int chan_offset = 0; | |
1236 | ||
1237 | wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); | |
1238 | ||
1239 | if (!freq || !type) | |
1240 | return; | |
1241 | ||
1242 | switch (nla_get_u32(type)) { | |
1243 | case NL80211_CHAN_NO_HT: | |
1244 | ht_enabled = 0; | |
1245 | break; | |
1246 | case NL80211_CHAN_HT20: | |
1247 | break; | |
1248 | case NL80211_CHAN_HT40PLUS: | |
1249 | chan_offset = 1; | |
1250 | break; | |
1251 | case NL80211_CHAN_HT40MINUS: | |
1252 | chan_offset = -1; | |
1253 | break; | |
1254 | } | |
1255 | ||
1256 | data.ch_switch.freq = nla_get_u32(freq); | |
1257 | data.ch_switch.ht_enabled = ht_enabled; | |
1258 | data.ch_switch.ch_offset = chan_offset; | |
1259 | ||
1260 | wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); | |
1261 | } | |
1262 | ||
1263 | ||
1264 | static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, | |
1265 | enum nl80211_commands cmd, struct nlattr *addr) | |
1266 | { | |
1267 | union wpa_event_data event; | |
1268 | enum wpa_event_type ev; | |
1269 | ||
1270 | if (nla_len(addr) != ETH_ALEN) | |
1271 | return; | |
1272 | ||
1273 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, | |
1274 | cmd, MAC2STR((u8 *) nla_data(addr))); | |
1275 | ||
1276 | if (cmd == NL80211_CMD_AUTHENTICATE) | |
1277 | ev = EVENT_AUTH_TIMED_OUT; | |
1278 | else if (cmd == NL80211_CMD_ASSOCIATE) | |
1279 | ev = EVENT_ASSOC_TIMED_OUT; | |
1280 | else | |
1281 | return; | |
1282 | ||
1283 | os_memset(&event, 0, sizeof(event)); | |
1284 | os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); | |
1285 | wpa_supplicant_event(drv->ctx, ev, &event); | |
1286 | } | |
1287 | ||
1288 | ||
1289 | static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, | |
1290 | struct nlattr *freq, struct nlattr *sig, | |
1291 | const u8 *frame, size_t len) | |
1292 | { | |
1293 | const struct ieee80211_mgmt *mgmt; | |
1294 | union wpa_event_data event; | |
1295 | u16 fc, stype; | |
1296 | int ssi_signal = 0; | |
1297 | ||
1298 | wpa_printf(MSG_DEBUG, "nl80211: Frame event"); | |
1299 | mgmt = (const struct ieee80211_mgmt *) frame; | |
1300 | if (len < 24) { | |
1301 | wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); | |
1302 | return; | |
1303 | } | |
1304 | ||
1305 | fc = le_to_host16(mgmt->frame_control); | |
1306 | stype = WLAN_FC_GET_STYPE(fc); | |
1307 | ||
1308 | if (sig) | |
1309 | ssi_signal = (s32) nla_get_u32(sig); | |
1310 | ||
1311 | os_memset(&event, 0, sizeof(event)); | |
1312 | if (freq) { | |
1313 | event.rx_action.freq = nla_get_u32(freq); | |
1314 | drv->last_mgmt_freq = event.rx_action.freq; | |
1315 | } | |
1316 | if (stype == WLAN_FC_STYPE_ACTION) { | |
1317 | event.rx_action.da = mgmt->da; | |
1318 | event.rx_action.sa = mgmt->sa; | |
1319 | event.rx_action.bssid = mgmt->bssid; | |
1320 | event.rx_action.category = mgmt->u.action.category; | |
1321 | event.rx_action.data = &mgmt->u.action.category + 1; | |
1322 | event.rx_action.len = frame + len - event.rx_action.data; | |
1323 | wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); | |
1324 | } else { | |
1325 | event.rx_mgmt.frame = frame; | |
1326 | event.rx_mgmt.frame_len = len; | |
1327 | event.rx_mgmt.ssi_signal = ssi_signal; | |
1328 | wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | ||
1333 | static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, | |
1334 | struct nlattr *cookie, const u8 *frame, | |
1335 | size_t len, struct nlattr *ack) | |
1336 | { | |
1337 | union wpa_event_data event; | |
1338 | const struct ieee80211_hdr *hdr; | |
1339 | u16 fc; | |
1340 | ||
1341 | wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); | |
1342 | if (!is_ap_interface(drv->nlmode)) { | |
1343 | u64 cookie_val; | |
1344 | ||
1345 | if (!cookie) | |
1346 | return; | |
1347 | ||
1348 | cookie_val = nla_get_u64(cookie); | |
1349 | wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" | |
1350 | " cookie=0%llx%s (ack=%d)", | |
1351 | (long long unsigned int) cookie_val, | |
1352 | cookie_val == drv->send_action_cookie ? | |
1353 | " (match)" : " (unknown)", ack != NULL); | |
1354 | if (cookie_val != drv->send_action_cookie) | |
1355 | return; | |
1356 | } | |
1357 | ||
1358 | hdr = (const struct ieee80211_hdr *) frame; | |
1359 | fc = le_to_host16(hdr->frame_control); | |
1360 | ||
1361 | os_memset(&event, 0, sizeof(event)); | |
1362 | event.tx_status.type = WLAN_FC_GET_TYPE(fc); | |
1363 | event.tx_status.stype = WLAN_FC_GET_STYPE(fc); | |
1364 | event.tx_status.dst = hdr->addr1; | |
1365 | event.tx_status.data = frame; | |
1366 | event.tx_status.data_len = len; | |
1367 | event.tx_status.ack = ack != NULL; | |
1368 | wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); | |
1369 | } | |
1370 | ||
1371 | ||
1372 | static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, | |
1373 | enum wpa_event_type type, | |
1374 | const u8 *frame, size_t len) | |
1375 | { | |
1376 | const struct ieee80211_mgmt *mgmt; | |
1377 | union wpa_event_data event; | |
1378 | const u8 *bssid = NULL; | |
1379 | u16 reason_code = 0; | |
1380 | ||
1381 | if (type == EVENT_DEAUTH) | |
1382 | wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); | |
1383 | else | |
1384 | wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); | |
1385 | ||
1386 | mgmt = (const struct ieee80211_mgmt *) frame; | |
1387 | if (len >= 24) { | |
1388 | bssid = mgmt->bssid; | |
1389 | ||
1390 | if (drv->associated != 0 && | |
1391 | os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && | |
1392 | os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { | |
1393 | /* | |
1394 | * We have presumably received this deauth as a | |
1395 | * response to a clear_state_mismatch() outgoing | |
1396 | * deauth. Don't let it take us offline! | |
1397 | */ | |
1398 | wpa_printf(MSG_DEBUG, "nl80211: Deauth received " | |
1399 | "from Unknown BSSID " MACSTR " -- ignoring", | |
1400 | MAC2STR(bssid)); | |
1401 | return; | |
1402 | } | |
1403 | } | |
1404 | ||
1405 | drv->associated = 0; | |
1406 | os_memset(&event, 0, sizeof(event)); | |
1407 | ||
1408 | /* Note: Same offset for Reason Code in both frame subtypes */ | |
1409 | if (len >= 24 + sizeof(mgmt->u.deauth)) | |
1410 | reason_code = le_to_host16(mgmt->u.deauth.reason_code); | |
1411 | ||
1412 | if (type == EVENT_DISASSOC) { | |
1413 | event.disassoc_info.locally_generated = | |
1414 | !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); | |
1415 | event.disassoc_info.addr = bssid; | |
1416 | event.disassoc_info.reason_code = reason_code; | |
1417 | if (frame + len > mgmt->u.disassoc.variable) { | |
1418 | event.disassoc_info.ie = mgmt->u.disassoc.variable; | |
1419 | event.disassoc_info.ie_len = frame + len - | |
1420 | mgmt->u.disassoc.variable; | |
1421 | } | |
1422 | } else { | |
1423 | event.deauth_info.locally_generated = | |
1424 | !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); | |
1425 | event.deauth_info.addr = bssid; | |
1426 | event.deauth_info.reason_code = reason_code; | |
1427 | if (frame + len > mgmt->u.deauth.variable) { | |
1428 | event.deauth_info.ie = mgmt->u.deauth.variable; | |
1429 | event.deauth_info.ie_len = frame + len - | |
1430 | mgmt->u.deauth.variable; | |
1431 | } | |
1432 | } | |
1433 | ||
1434 | wpa_supplicant_event(drv->ctx, type, &event); | |
1435 | } | |
1436 | ||
1437 | ||
1438 | static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, | |
1439 | enum wpa_event_type type, | |
1440 | const u8 *frame, size_t len) | |
1441 | { | |
1442 | const struct ieee80211_mgmt *mgmt; | |
1443 | union wpa_event_data event; | |
1444 | u16 reason_code = 0; | |
1445 | ||
1446 | if (type == EVENT_UNPROT_DEAUTH) | |
1447 | wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); | |
1448 | else | |
1449 | wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); | |
1450 | ||
1451 | if (len < 24) | |
1452 | return; | |
1453 | ||
1454 | mgmt = (const struct ieee80211_mgmt *) frame; | |
1455 | ||
1456 | os_memset(&event, 0, sizeof(event)); | |
1457 | /* Note: Same offset for Reason Code in both frame subtypes */ | |
1458 | if (len >= 24 + sizeof(mgmt->u.deauth)) | |
1459 | reason_code = le_to_host16(mgmt->u.deauth.reason_code); | |
1460 | ||
1461 | if (type == EVENT_UNPROT_DISASSOC) { | |
1462 | event.unprot_disassoc.sa = mgmt->sa; | |
1463 | event.unprot_disassoc.da = mgmt->da; | |
1464 | event.unprot_disassoc.reason_code = reason_code; | |
1465 | } else { | |
1466 | event.unprot_deauth.sa = mgmt->sa; | |
1467 | event.unprot_deauth.da = mgmt->da; | |
1468 | event.unprot_deauth.reason_code = reason_code; | |
1469 | } | |
1470 | ||
1471 | wpa_supplicant_event(drv->ctx, type, &event); | |
1472 | } | |
1473 | ||
1474 | ||
1475 | static void mlme_event(struct wpa_driver_nl80211_data *drv, | |
1476 | enum nl80211_commands cmd, struct nlattr *frame, | |
1477 | struct nlattr *addr, struct nlattr *timed_out, | |
1478 | struct nlattr *freq, struct nlattr *ack, | |
1479 | struct nlattr *cookie, struct nlattr *sig) | |
1480 | { | |
1481 | if (timed_out && addr) { | |
1482 | mlme_timeout_event(drv, cmd, addr); | |
1483 | return; | |
1484 | } | |
1485 | ||
1486 | if (frame == NULL) { | |
1487 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame " | |
1488 | "data", cmd); | |
1489 | return; | |
1490 | } | |
1491 | ||
1492 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd); | |
1493 | wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", | |
1494 | nla_data(frame), nla_len(frame)); | |
1495 | ||
1496 | switch (cmd) { | |
1497 | case NL80211_CMD_AUTHENTICATE: | |
1498 | mlme_event_auth(drv, nla_data(frame), nla_len(frame)); | |
1499 | break; | |
1500 | case NL80211_CMD_ASSOCIATE: | |
1501 | mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); | |
1502 | break; | |
1503 | case NL80211_CMD_DEAUTHENTICATE: | |
1504 | mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, | |
1505 | nla_data(frame), nla_len(frame)); | |
1506 | break; | |
1507 | case NL80211_CMD_DISASSOCIATE: | |
1508 | mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, | |
1509 | nla_data(frame), nla_len(frame)); | |
1510 | break; | |
1511 | case NL80211_CMD_FRAME: | |
1512 | mlme_event_mgmt(drv, freq, sig, nla_data(frame), | |
1513 | nla_len(frame)); | |
1514 | break; | |
1515 | case NL80211_CMD_FRAME_TX_STATUS: | |
1516 | mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), | |
1517 | nla_len(frame), ack); | |
1518 | break; | |
1519 | case NL80211_CMD_UNPROT_DEAUTHENTICATE: | |
1520 | mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, | |
1521 | nla_data(frame), nla_len(frame)); | |
1522 | break; | |
1523 | case NL80211_CMD_UNPROT_DISASSOCIATE: | |
1524 | mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, | |
1525 | nla_data(frame), nla_len(frame)); | |
1526 | break; | |
1527 | default: | |
1528 | break; | |
1529 | } | |
1530 | } | |
1531 | ||
1532 | ||
1533 | static void mlme_event_michael_mic_failure(struct i802_bss *bss, | |
1534 | struct nlattr *tb[]) | |
1535 | { | |
1536 | union wpa_event_data data; | |
1537 | ||
1538 | wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); | |
1539 | os_memset(&data, 0, sizeof(data)); | |
1540 | if (tb[NL80211_ATTR_MAC]) { | |
1541 | wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", | |
1542 | nla_data(tb[NL80211_ATTR_MAC]), | |
1543 | nla_len(tb[NL80211_ATTR_MAC])); | |
1544 | data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); | |
1545 | } | |
1546 | if (tb[NL80211_ATTR_KEY_SEQ]) { | |
1547 | wpa_hexdump(MSG_DEBUG, "nl80211: TSC", | |
1548 | nla_data(tb[NL80211_ATTR_KEY_SEQ]), | |
1549 | nla_len(tb[NL80211_ATTR_KEY_SEQ])); | |
1550 | } | |
1551 | if (tb[NL80211_ATTR_KEY_TYPE]) { | |
1552 | enum nl80211_key_type key_type = | |
1553 | nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); | |
1554 | wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); | |
1555 | if (key_type == NL80211_KEYTYPE_PAIRWISE) | |
1556 | data.michael_mic_failure.unicast = 1; | |
1557 | } else | |
1558 | data.michael_mic_failure.unicast = 1; | |
1559 | ||
1560 | if (tb[NL80211_ATTR_KEY_IDX]) { | |
1561 | u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); | |
1562 | wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); | |
1563 | } | |
1564 | ||
1565 | wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); | |
1566 | } | |
1567 | ||
1568 | ||
1569 | static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, | |
1570 | struct nlattr *tb[]) | |
1571 | { | |
1572 | if (tb[NL80211_ATTR_MAC] == NULL) { | |
1573 | wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " | |
1574 | "event"); | |
1575 | return; | |
1576 | } | |
1577 | os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); | |
1578 | drv->associated = 1; | |
1579 | wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", | |
1580 | MAC2STR(drv->bssid)); | |
1581 | ||
1582 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); | |
1583 | } | |
1584 | ||
1585 | ||
1586 | static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, | |
1587 | int cancel_event, struct nlattr *tb[]) | |
1588 | { | |
1589 | unsigned int freq, chan_type, duration; | |
1590 | union wpa_event_data data; | |
1591 | u64 cookie; | |
1592 | ||
1593 | if (tb[NL80211_ATTR_WIPHY_FREQ]) | |
1594 | freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); | |
1595 | else | |
1596 | freq = 0; | |
1597 | ||
1598 | if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) | |
1599 | chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1600 | else | |
1601 | chan_type = 0; | |
1602 | ||
1603 | if (tb[NL80211_ATTR_DURATION]) | |
1604 | duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); | |
1605 | else | |
1606 | duration = 0; | |
1607 | ||
1608 | if (tb[NL80211_ATTR_COOKIE]) | |
1609 | cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); | |
1610 | else | |
1611 | cookie = 0; | |
1612 | ||
1613 | wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " | |
1614 | "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", | |
1615 | cancel_event, freq, chan_type, duration, | |
1616 | (long long unsigned int) cookie, | |
1617 | cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); | |
1618 | ||
1619 | if (cookie != drv->remain_on_chan_cookie) | |
1620 | return; /* not for us */ | |
1621 | ||
1622 | if (cancel_event) | |
1623 | drv->pending_remain_on_chan = 0; | |
1624 | ||
1625 | os_memset(&data, 0, sizeof(data)); | |
1626 | data.remain_on_channel.freq = freq; | |
1627 | data.remain_on_channel.duration = duration; | |
1628 | wpa_supplicant_event(drv->ctx, cancel_event ? | |
1629 | EVENT_CANCEL_REMAIN_ON_CHANNEL : | |
1630 | EVENT_REMAIN_ON_CHANNEL, &data); | |
1631 | } | |
1632 | ||
1633 | ||
1634 | static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, | |
1635 | struct nlattr *tb[]) | |
1636 | { | |
1637 | union wpa_event_data event; | |
1638 | struct nlattr *nl; | |
1639 | int rem; | |
1640 | struct scan_info *info; | |
1641 | #define MAX_REPORT_FREQS 50 | |
1642 | int freqs[MAX_REPORT_FREQS]; | |
1643 | int num_freqs = 0; | |
1644 | ||
1645 | if (drv->scan_for_auth) { | |
1646 | drv->scan_for_auth = 0; | |
1647 | wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " | |
1648 | "cfg80211 BSS entry"); | |
1649 | wpa_driver_nl80211_authenticate_retry(drv); | |
1650 | return; | |
1651 | } | |
1652 | ||
1653 | os_memset(&event, 0, sizeof(event)); | |
1654 | info = &event.scan_info; | |
1655 | info->aborted = aborted; | |
1656 | ||
1657 | if (tb[NL80211_ATTR_SCAN_SSIDS]) { | |
1658 | nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { | |
1659 | struct wpa_driver_scan_ssid *s = | |
1660 | &info->ssids[info->num_ssids]; | |
1661 | s->ssid = nla_data(nl); | |
1662 | s->ssid_len = nla_len(nl); | |
1663 | info->num_ssids++; | |
1664 | if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) | |
1665 | break; | |
1666 | } | |
1667 | } | |
1668 | if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
1669 | nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) | |
1670 | { | |
1671 | freqs[num_freqs] = nla_get_u32(nl); | |
1672 | num_freqs++; | |
1673 | if (num_freqs == MAX_REPORT_FREQS - 1) | |
1674 | break; | |
1675 | } | |
1676 | info->freqs = freqs; | |
1677 | info->num_freqs = num_freqs; | |
1678 | } | |
1679 | wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); | |
1680 | } | |
1681 | ||
1682 | ||
1683 | static int get_link_signal(struct nl_msg *msg, void *arg) | |
1684 | { | |
1685 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1686 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1687 | struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; | |
1688 | static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { | |
1689 | [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, | |
1690 | }; | |
1691 | struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; | |
1692 | static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { | |
1693 | [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, | |
1694 | [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, | |
1695 | [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, | |
1696 | [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, | |
1697 | }; | |
1698 | struct wpa_signal_info *sig_change = arg; | |
1699 | ||
1700 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1701 | genlmsg_attrlen(gnlh, 0), NULL); | |
1702 | if (!tb[NL80211_ATTR_STA_INFO] || | |
1703 | nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, | |
1704 | tb[NL80211_ATTR_STA_INFO], policy)) | |
1705 | return NL_SKIP; | |
1706 | if (!sinfo[NL80211_STA_INFO_SIGNAL]) | |
1707 | return NL_SKIP; | |
1708 | ||
1709 | sig_change->current_signal = | |
1710 | (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); | |
1711 | ||
1712 | if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { | |
1713 | if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, | |
1714 | sinfo[NL80211_STA_INFO_TX_BITRATE], | |
1715 | rate_policy)) { | |
1716 | sig_change->current_txrate = 0; | |
1717 | } else { | |
1718 | if (rinfo[NL80211_RATE_INFO_BITRATE]) { | |
1719 | sig_change->current_txrate = | |
1720 | nla_get_u16(rinfo[ | |
1721 | NL80211_RATE_INFO_BITRATE]) * 100; | |
1722 | } | |
1723 | } | |
1724 | } | |
1725 | ||
1726 | return NL_SKIP; | |
1727 | } | |
1728 | ||
1729 | ||
1730 | static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, | |
1731 | struct wpa_signal_info *sig) | |
1732 | { | |
1733 | struct nl_msg *msg; | |
1734 | ||
1735 | sig->current_signal = -9999; | |
1736 | sig->current_txrate = 0; | |
1737 | ||
1738 | msg = nlmsg_alloc(); | |
1739 | if (!msg) | |
1740 | return -ENOMEM; | |
1741 | ||
1742 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); | |
1743 | ||
1744 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1745 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); | |
1746 | ||
1747 | return send_and_recv_msgs(drv, msg, get_link_signal, sig); | |
1748 | nla_put_failure: | |
1749 | nlmsg_free(msg); | |
1750 | return -ENOBUFS; | |
1751 | } | |
1752 | ||
1753 | ||
1754 | static int get_link_noise(struct nl_msg *msg, void *arg) | |
1755 | { | |
1756 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1757 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1758 | struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; | |
1759 | static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { | |
1760 | [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, | |
1761 | [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, | |
1762 | }; | |
1763 | struct wpa_signal_info *sig_change = arg; | |
1764 | ||
1765 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1766 | genlmsg_attrlen(gnlh, 0), NULL); | |
1767 | ||
1768 | if (!tb[NL80211_ATTR_SURVEY_INFO]) { | |
1769 | wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); | |
1770 | return NL_SKIP; | |
1771 | } | |
1772 | ||
1773 | if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, | |
1774 | tb[NL80211_ATTR_SURVEY_INFO], | |
1775 | survey_policy)) { | |
1776 | wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " | |
1777 | "attributes!"); | |
1778 | return NL_SKIP; | |
1779 | } | |
1780 | ||
1781 | if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) | |
1782 | return NL_SKIP; | |
1783 | ||
1784 | if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != | |
1785 | sig_change->frequency) | |
1786 | return NL_SKIP; | |
1787 | ||
1788 | if (!sinfo[NL80211_SURVEY_INFO_NOISE]) | |
1789 | return NL_SKIP; | |
1790 | ||
1791 | sig_change->current_noise = | |
1792 | (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); | |
1793 | ||
1794 | return NL_SKIP; | |
1795 | } | |
1796 | ||
1797 | ||
1798 | static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, | |
1799 | struct wpa_signal_info *sig_change) | |
1800 | { | |
1801 | struct nl_msg *msg; | |
1802 | ||
1803 | sig_change->current_noise = 9999; | |
1804 | sig_change->frequency = drv->assoc_freq; | |
1805 | ||
1806 | msg = nlmsg_alloc(); | |
1807 | if (!msg) | |
1808 | return -ENOMEM; | |
1809 | ||
1810 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); | |
1811 | ||
1812 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1813 | ||
1814 | return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); | |
1815 | nla_put_failure: | |
1816 | nlmsg_free(msg); | |
1817 | return -ENOBUFS; | |
1818 | } | |
1819 | ||
1820 | ||
1821 | static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) | |
1822 | { | |
1823 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1824 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1825 | struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; | |
1826 | static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { | |
1827 | [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, | |
1828 | [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, | |
1829 | }; | |
1830 | struct wpa_scan_results *scan_results = arg; | |
1831 | struct wpa_scan_res *scan_res; | |
1832 | size_t i; | |
1833 | ||
1834 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1835 | genlmsg_attrlen(gnlh, 0), NULL); | |
1836 | ||
1837 | if (!tb[NL80211_ATTR_SURVEY_INFO]) { | |
1838 | wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); | |
1839 | return NL_SKIP; | |
1840 | } | |
1841 | ||
1842 | if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, | |
1843 | tb[NL80211_ATTR_SURVEY_INFO], | |
1844 | survey_policy)) { | |
1845 | wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " | |
1846 | "attributes"); | |
1847 | return NL_SKIP; | |
1848 | } | |
1849 | ||
1850 | if (!sinfo[NL80211_SURVEY_INFO_NOISE]) | |
1851 | return NL_SKIP; | |
1852 | ||
1853 | if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) | |
1854 | return NL_SKIP; | |
1855 | ||
1856 | for (i = 0; i < scan_results->num; ++i) { | |
1857 | scan_res = scan_results->res[i]; | |
1858 | if (!scan_res) | |
1859 | continue; | |
1860 | if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != | |
1861 | scan_res->freq) | |
1862 | continue; | |
1863 | if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) | |
1864 | continue; | |
1865 | scan_res->noise = (s8) | |
1866 | nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); | |
1867 | scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; | |
1868 | } | |
1869 | ||
1870 | return NL_SKIP; | |
1871 | } | |
1872 | ||
1873 | ||
1874 | static int nl80211_get_noise_for_scan_results( | |
1875 | struct wpa_driver_nl80211_data *drv, | |
1876 | struct wpa_scan_results *scan_res) | |
1877 | { | |
1878 | struct nl_msg *msg; | |
1879 | ||
1880 | msg = nlmsg_alloc(); | |
1881 | if (!msg) | |
1882 | return -ENOMEM; | |
1883 | ||
1884 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); | |
1885 | ||
1886 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1887 | ||
1888 | return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, | |
1889 | scan_res); | |
1890 | nla_put_failure: | |
1891 | nlmsg_free(msg); | |
1892 | return -ENOBUFS; | |
1893 | } | |
1894 | ||
1895 | ||
1896 | static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, | |
1897 | struct nlattr *tb[]) | |
1898 | { | |
1899 | static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { | |
1900 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
1901 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, | |
1902 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
1903 | [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, | |
1904 | }; | |
1905 | struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; | |
1906 | enum nl80211_cqm_rssi_threshold_event event; | |
1907 | union wpa_event_data ed; | |
1908 | struct wpa_signal_info sig; | |
1909 | int res; | |
1910 | ||
1911 | if (tb[NL80211_ATTR_CQM] == NULL || | |
1912 | nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], | |
1913 | cqm_policy)) { | |
1914 | wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); | |
1915 | return; | |
1916 | } | |
1917 | ||
1918 | os_memset(&ed, 0, sizeof(ed)); | |
1919 | ||
1920 | if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { | |
1921 | if (!tb[NL80211_ATTR_MAC]) | |
1922 | return; | |
1923 | os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), | |
1924 | ETH_ALEN); | |
1925 | wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); | |
1926 | return; | |
1927 | } | |
1928 | ||
1929 | if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) | |
1930 | return; | |
1931 | event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); | |
1932 | ||
1933 | if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { | |
1934 | wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " | |
1935 | "event: RSSI high"); | |
1936 | ed.signal_change.above_threshold = 1; | |
1937 | } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { | |
1938 | wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " | |
1939 | "event: RSSI low"); | |
1940 | ed.signal_change.above_threshold = 0; | |
1941 | } else | |
1942 | return; | |
1943 | ||
1944 | res = nl80211_get_link_signal(drv, &sig); | |
1945 | if (res == 0) { | |
1946 | ed.signal_change.current_signal = sig.current_signal; | |
1947 | ed.signal_change.current_txrate = sig.current_txrate; | |
1948 | wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", | |
1949 | sig.current_signal, sig.current_txrate); | |
1950 | } | |
1951 | ||
1952 | res = nl80211_get_link_noise(drv, &sig); | |
1953 | if (res == 0) { | |
1954 | ed.signal_change.current_noise = sig.current_noise; | |
1955 | wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", | |
1956 | sig.current_noise); | |
1957 | } | |
1958 | ||
1959 | wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); | |
1960 | } | |
1961 | ||
1962 | ||
1963 | static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, | |
1964 | struct nlattr **tb) | |
1965 | { | |
1966 | u8 *addr; | |
1967 | union wpa_event_data data; | |
1968 | ||
1969 | if (tb[NL80211_ATTR_MAC] == NULL) | |
1970 | return; | |
1971 | addr = nla_data(tb[NL80211_ATTR_MAC]); | |
1972 | wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); | |
1973 | ||
1974 | if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { | |
1975 | u8 *ies = NULL; | |
1976 | size_t ies_len = 0; | |
1977 | if (tb[NL80211_ATTR_IE]) { | |
1978 | ies = nla_data(tb[NL80211_ATTR_IE]); | |
1979 | ies_len = nla_len(tb[NL80211_ATTR_IE]); | |
1980 | } | |
1981 | wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); | |
1982 | drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); | |
1983 | return; | |
1984 | } | |
1985 | ||
1986 | if (drv->nlmode != NL80211_IFTYPE_ADHOC) | |
1987 | return; | |
1988 | ||
1989 | os_memset(&data, 0, sizeof(data)); | |
1990 | os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); | |
1991 | wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); | |
1992 | } | |
1993 | ||
1994 | ||
1995 | static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, | |
1996 | struct nlattr **tb) | |
1997 | { | |
1998 | u8 *addr; | |
1999 | union wpa_event_data data; | |
2000 | ||
2001 | if (tb[NL80211_ATTR_MAC] == NULL) | |
2002 | return; | |
2003 | addr = nla_data(tb[NL80211_ATTR_MAC]); | |
2004 | wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, | |
2005 | MAC2STR(addr)); | |
2006 | ||
2007 | if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { | |
2008 | drv_event_disassoc(drv->ctx, addr); | |
2009 | return; | |
2010 | } | |
2011 | ||
2012 | if (drv->nlmode != NL80211_IFTYPE_ADHOC) | |
2013 | return; | |
2014 | ||
2015 | os_memset(&data, 0, sizeof(data)); | |
2016 | os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); | |
2017 | wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); | |
2018 | } | |
2019 | ||
2020 | ||
2021 | static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, | |
2022 | struct nlattr **tb) | |
2023 | { | |
2024 | struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; | |
2025 | static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
2026 | [NL80211_REKEY_DATA_KEK] = { | |
2027 | .minlen = NL80211_KEK_LEN, | |
2028 | .maxlen = NL80211_KEK_LEN, | |
2029 | }, | |
2030 | [NL80211_REKEY_DATA_KCK] = { | |
2031 | .minlen = NL80211_KCK_LEN, | |
2032 | .maxlen = NL80211_KCK_LEN, | |
2033 | }, | |
2034 | [NL80211_REKEY_DATA_REPLAY_CTR] = { | |
2035 | .minlen = NL80211_REPLAY_CTR_LEN, | |
2036 | .maxlen = NL80211_REPLAY_CTR_LEN, | |
2037 | }, | |
2038 | }; | |
2039 | union wpa_event_data data; | |
2040 | ||
2041 | if (!tb[NL80211_ATTR_MAC]) | |
2042 | return; | |
2043 | if (!tb[NL80211_ATTR_REKEY_DATA]) | |
2044 | return; | |
2045 | if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, | |
2046 | tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) | |
2047 | return; | |
2048 | if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) | |
2049 | return; | |
2050 | ||
2051 | os_memset(&data, 0, sizeof(data)); | |
2052 | data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); | |
2053 | wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, | |
2054 | MAC2STR(data.driver_gtk_rekey.bssid)); | |
2055 | data.driver_gtk_rekey.replay_ctr = | |
2056 | nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); | |
2057 | wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", | |
2058 | data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); | |
2059 | wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); | |
2060 | } | |
2061 | ||
2062 | ||
2063 | static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, | |
2064 | struct nlattr **tb) | |
2065 | { | |
2066 | struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; | |
2067 | static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { | |
2068 | [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, | |
2069 | [NL80211_PMKSA_CANDIDATE_BSSID] = { | |
2070 | .minlen = ETH_ALEN, | |
2071 | .maxlen = ETH_ALEN, | |
2072 | }, | |
2073 | [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, | |
2074 | }; | |
2075 | union wpa_event_data data; | |
2076 | ||
2077 | wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); | |
2078 | ||
2079 | if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) | |
2080 | return; | |
2081 | if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, | |
2082 | tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) | |
2083 | return; | |
2084 | if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || | |
2085 | !cand[NL80211_PMKSA_CANDIDATE_BSSID]) | |
2086 | return; | |
2087 | ||
2088 | os_memset(&data, 0, sizeof(data)); | |
2089 | os_memcpy(data.pmkid_candidate.bssid, | |
2090 | nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); | |
2091 | data.pmkid_candidate.index = | |
2092 | nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); | |
2093 | data.pmkid_candidate.preauth = | |
2094 | cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; | |
2095 | wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); | |
2096 | } | |
2097 | ||
2098 | ||
2099 | static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, | |
2100 | struct nlattr **tb) | |
2101 | { | |
2102 | union wpa_event_data data; | |
2103 | ||
2104 | wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); | |
2105 | ||
2106 | if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) | |
2107 | return; | |
2108 | ||
2109 | os_memset(&data, 0, sizeof(data)); | |
2110 | os_memcpy(data.client_poll.addr, | |
2111 | nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); | |
2112 | ||
2113 | wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); | |
2114 | } | |
2115 | ||
2116 | ||
2117 | static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, | |
2118 | struct nlattr **tb) | |
2119 | { | |
2120 | union wpa_event_data data; | |
2121 | ||
2122 | wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); | |
2123 | ||
2124 | if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) | |
2125 | return; | |
2126 | ||
2127 | os_memset(&data, 0, sizeof(data)); | |
2128 | os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); | |
2129 | switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { | |
2130 | case NL80211_TDLS_SETUP: | |
2131 | wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " | |
2132 | MACSTR, MAC2STR(data.tdls.peer)); | |
2133 | data.tdls.oper = TDLS_REQUEST_SETUP; | |
2134 | break; | |
2135 | case NL80211_TDLS_TEARDOWN: | |
2136 | wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " | |
2137 | MACSTR, MAC2STR(data.tdls.peer)); | |
2138 | data.tdls.oper = TDLS_REQUEST_TEARDOWN; | |
2139 | break; | |
2140 | default: | |
2141 | wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " | |
2142 | "event"); | |
2143 | return; | |
2144 | } | |
2145 | if (tb[NL80211_ATTR_REASON_CODE]) { | |
2146 | data.tdls.reason_code = | |
2147 | nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); | |
2148 | } | |
2149 | ||
2150 | wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); | |
2151 | } | |
2152 | ||
2153 | ||
2154 | static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, | |
2155 | int wds) | |
2156 | { | |
2157 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
2158 | union wpa_event_data event; | |
2159 | ||
2160 | if (!tb[NL80211_ATTR_MAC]) | |
2161 | return; | |
2162 | ||
2163 | os_memset(&event, 0, sizeof(event)); | |
2164 | event.rx_from_unknown.bssid = bss->addr; | |
2165 | event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); | |
2166 | event.rx_from_unknown.wds = wds; | |
2167 | ||
2168 | wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); | |
2169 | } | |
2170 | ||
2171 | ||
2172 | static void do_process_drv_event(struct i802_bss *bss, int cmd, | |
2173 | struct nlattr **tb) | |
2174 | { | |
2175 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
2176 | ||
2177 | if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && | |
2178 | (cmd == NL80211_CMD_NEW_SCAN_RESULTS || | |
2179 | cmd == NL80211_CMD_SCAN_ABORTED)) { | |
2180 | wpa_driver_nl80211_set_mode(&drv->first_bss, | |
2181 | drv->ap_scan_as_station); | |
2182 | drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; | |
2183 | } | |
2184 | ||
2185 | switch (cmd) { | |
2186 | case NL80211_CMD_TRIGGER_SCAN: | |
2187 | wpa_printf(MSG_DEBUG, "nl80211: Scan trigger"); | |
2188 | break; | |
2189 | case NL80211_CMD_START_SCHED_SCAN: | |
2190 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan started"); | |
2191 | break; | |
2192 | case NL80211_CMD_SCHED_SCAN_STOPPED: | |
2193 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped"); | |
2194 | wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); | |
2195 | break; | |
2196 | case NL80211_CMD_NEW_SCAN_RESULTS: | |
2197 | wpa_printf(MSG_DEBUG, "nl80211: New scan results available"); | |
2198 | drv->scan_complete_events = 1; | |
2199 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, | |
2200 | drv->ctx); | |
2201 | send_scan_event(drv, 0, tb); | |
2202 | break; | |
2203 | case NL80211_CMD_SCHED_SCAN_RESULTS: | |
2204 | wpa_printf(MSG_DEBUG, | |
2205 | "nl80211: New sched scan results available"); | |
2206 | send_scan_event(drv, 0, tb); | |
2207 | break; | |
2208 | case NL80211_CMD_SCAN_ABORTED: | |
2209 | wpa_printf(MSG_DEBUG, "nl80211: Scan aborted"); | |
2210 | /* | |
2211 | * Need to indicate that scan results are available in order | |
2212 | * not to make wpa_supplicant stop its scanning. | |
2213 | */ | |
2214 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, | |
2215 | drv->ctx); | |
2216 | send_scan_event(drv, 1, tb); | |
2217 | break; | |
2218 | case NL80211_CMD_AUTHENTICATE: | |
2219 | case NL80211_CMD_ASSOCIATE: | |
2220 | case NL80211_CMD_DEAUTHENTICATE: | |
2221 | case NL80211_CMD_DISASSOCIATE: | |
2222 | case NL80211_CMD_FRAME_TX_STATUS: | |
2223 | case NL80211_CMD_UNPROT_DEAUTHENTICATE: | |
2224 | case NL80211_CMD_UNPROT_DISASSOCIATE: | |
2225 | mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME], | |
2226 | tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], | |
2227 | tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], | |
2228 | tb[NL80211_ATTR_COOKIE], | |
2229 | tb[NL80211_ATTR_RX_SIGNAL_DBM]); | |
2230 | break; | |
2231 | case NL80211_CMD_CONNECT: | |
2232 | case NL80211_CMD_ROAM: | |
2233 | mlme_event_connect(drv, cmd, | |
2234 | tb[NL80211_ATTR_STATUS_CODE], | |
2235 | tb[NL80211_ATTR_MAC], | |
2236 | tb[NL80211_ATTR_REQ_IE], | |
2237 | tb[NL80211_ATTR_RESP_IE]); | |
2238 | break; | |
2239 | case NL80211_CMD_CH_SWITCH_NOTIFY: | |
2240 | mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], | |
2241 | tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
2242 | break; | |
2243 | case NL80211_CMD_DISCONNECT: | |
2244 | mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], | |
2245 | tb[NL80211_ATTR_MAC], | |
2246 | tb[NL80211_ATTR_DISCONNECTED_BY_AP]); | |
2247 | break; | |
2248 | case NL80211_CMD_MICHAEL_MIC_FAILURE: | |
2249 | mlme_event_michael_mic_failure(bss, tb); | |
2250 | break; | |
2251 | case NL80211_CMD_JOIN_IBSS: | |
2252 | mlme_event_join_ibss(drv, tb); | |
2253 | break; | |
2254 | case NL80211_CMD_REMAIN_ON_CHANNEL: | |
2255 | mlme_event_remain_on_channel(drv, 0, tb); | |
2256 | break; | |
2257 | case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: | |
2258 | mlme_event_remain_on_channel(drv, 1, tb); | |
2259 | break; | |
2260 | case NL80211_CMD_NOTIFY_CQM: | |
2261 | nl80211_cqm_event(drv, tb); | |
2262 | break; | |
2263 | case NL80211_CMD_REG_CHANGE: | |
2264 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); | |
2265 | wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, | |
2266 | NULL); | |
2267 | break; | |
2268 | case NL80211_CMD_REG_BEACON_HINT: | |
2269 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); | |
2270 | wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, | |
2271 | NULL); | |
2272 | break; | |
2273 | case NL80211_CMD_NEW_STATION: | |
2274 | nl80211_new_station_event(drv, tb); | |
2275 | break; | |
2276 | case NL80211_CMD_DEL_STATION: | |
2277 | nl80211_del_station_event(drv, tb); | |
2278 | break; | |
2279 | case NL80211_CMD_SET_REKEY_OFFLOAD: | |
2280 | nl80211_rekey_offload_event(drv, tb); | |
2281 | break; | |
2282 | case NL80211_CMD_PMKSA_CANDIDATE: | |
2283 | nl80211_pmksa_candidate_event(drv, tb); | |
2284 | break; | |
2285 | case NL80211_CMD_PROBE_CLIENT: | |
2286 | nl80211_client_probe_event(drv, tb); | |
2287 | break; | |
2288 | case NL80211_CMD_TDLS_OPER: | |
2289 | nl80211_tdls_oper_event(drv, tb); | |
2290 | break; | |
2291 | default: | |
2292 | wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " | |
2293 | "(cmd=%d)", cmd); | |
2294 | break; | |
2295 | } | |
2296 | } | |
2297 | ||
2298 | ||
2299 | static int process_drv_event(struct nl_msg *msg, void *arg) | |
2300 | { | |
2301 | struct wpa_driver_nl80211_data *drv = arg; | |
2302 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
2303 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
2304 | struct i802_bss *bss; | |
2305 | int ifidx = -1; | |
2306 | ||
2307 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
2308 | genlmsg_attrlen(gnlh, 0), NULL); | |
2309 | ||
2310 | if (tb[NL80211_ATTR_IFINDEX]) | |
2311 | ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
2312 | ||
2313 | for (bss = &drv->first_bss; bss; bss = bss->next) { | |
2314 | if (ifidx == -1 || ifidx == bss->ifindex) { | |
2315 | do_process_drv_event(bss, gnlh->cmd, tb); | |
2316 | return NL_SKIP; | |
2317 | } | |
2318 | } | |
2319 | ||
2320 | wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d) for foreign " | |
2321 | "interface (ifindex %d)", gnlh->cmd, ifidx); | |
2322 | ||
2323 | return NL_SKIP; | |
2324 | } | |
2325 | ||
2326 | ||
2327 | static int process_global_event(struct nl_msg *msg, void *arg) | |
2328 | { | |
2329 | struct nl80211_global *global = arg; | |
2330 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
2331 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
2332 | struct wpa_driver_nl80211_data *drv, *tmp; | |
2333 | int ifidx = -1; | |
2334 | struct i802_bss *bss; | |
2335 | ||
2336 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
2337 | genlmsg_attrlen(gnlh, 0), NULL); | |
2338 | ||
2339 | if (tb[NL80211_ATTR_IFINDEX]) | |
2340 | ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
2341 | ||
2342 | dl_list_for_each_safe(drv, tmp, &global->interfaces, | |
2343 | struct wpa_driver_nl80211_data, list) { | |
2344 | for (bss = &drv->first_bss; bss; bss = bss->next) { | |
2345 | if (ifidx == -1 || ifidx == bss->ifindex) { | |
2346 | do_process_drv_event(bss, gnlh->cmd, tb); | |
2347 | return NL_SKIP; | |
2348 | } | |
2349 | } | |
2350 | } | |
2351 | ||
2352 | return NL_SKIP; | |
2353 | } | |
2354 | ||
2355 | ||
2356 | static int process_bss_event(struct nl_msg *msg, void *arg) | |
2357 | { | |
2358 | struct i802_bss *bss = arg; | |
2359 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
2360 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
2361 | ||
2362 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
2363 | genlmsg_attrlen(gnlh, 0), NULL); | |
2364 | ||
2365 | switch (gnlh->cmd) { | |
2366 | case NL80211_CMD_FRAME: | |
2367 | case NL80211_CMD_FRAME_TX_STATUS: | |
2368 | mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME], | |
2369 | tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], | |
2370 | tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], | |
2371 | tb[NL80211_ATTR_COOKIE], | |
2372 | tb[NL80211_ATTR_RX_SIGNAL_DBM]); | |
2373 | break; | |
2374 | case NL80211_CMD_UNEXPECTED_FRAME: | |
2375 | nl80211_spurious_frame(bss, tb, 0); | |
2376 | break; | |
2377 | case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: | |
2378 | nl80211_spurious_frame(bss, tb, 1); | |
2379 | break; | |
2380 | default: | |
2381 | wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " | |
2382 | "(cmd=%d)", gnlh->cmd); | |
2383 | break; | |
2384 | } | |
2385 | ||
2386 | return NL_SKIP; | |
2387 | } | |
2388 | ||
2389 | ||
2390 | static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, | |
2391 | void *handle) | |
2392 | { | |
2393 | struct nl_cb *cb = eloop_ctx; | |
2394 | ||
2395 | wpa_printf(MSG_DEBUG, "nl80211: Event message available"); | |
2396 | ||
2397 | nl_recvmsgs(handle, cb); | |
2398 | } | |
2399 | ||
2400 | ||
2401 | /** | |
2402 | * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain | |
2403 | * @priv: driver_nl80211 private data | |
2404 | * @alpha2_arg: country to which to switch to | |
2405 | * Returns: 0 on success, -1 on failure | |
2406 | * | |
2407 | * This asks nl80211 to set the regulatory domain for given | |
2408 | * country ISO / IEC alpha2. | |
2409 | */ | |
2410 | static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) | |
2411 | { | |
2412 | struct i802_bss *bss = priv; | |
2413 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
2414 | char alpha2[3]; | |
2415 | struct nl_msg *msg; | |
2416 | ||
2417 | msg = nlmsg_alloc(); | |
2418 | if (!msg) | |
2419 | return -ENOMEM; | |
2420 | ||
2421 | alpha2[0] = alpha2_arg[0]; | |
2422 | alpha2[1] = alpha2_arg[1]; | |
2423 | alpha2[2] = '\0'; | |
2424 | ||
2425 | nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); | |
2426 | ||
2427 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); | |
2428 | if (send_and_recv_msgs(drv, msg, NULL, NULL)) | |
2429 | return -EINVAL; | |
2430 | return 0; | |
2431 | nla_put_failure: | |
2432 | nlmsg_free(msg); | |
2433 | return -EINVAL; | |
2434 | } | |
2435 | ||
2436 | ||
2437 | struct wiphy_info_data { | |
2438 | struct wpa_driver_capa *capa; | |
2439 | ||
2440 | unsigned int error:1; | |
2441 | unsigned int device_ap_sme:1; | |
2442 | unsigned int poll_command_supported:1; | |
2443 | unsigned int data_tx_status:1; | |
2444 | unsigned int monitor_supported:1; | |
2445 | }; | |
2446 | ||
2447 | ||
2448 | static unsigned int probe_resp_offload_support(int supp_protocols) | |
2449 | { | |
2450 | unsigned int prot = 0; | |
2451 | ||
2452 | if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) | |
2453 | prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; | |
2454 | if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) | |
2455 | prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; | |
2456 | if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) | |
2457 | prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; | |
2458 | if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) | |
2459 | prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; | |
2460 | ||
2461 | return prot; | |
2462 | } | |
2463 | ||
2464 | ||
2465 | static int wiphy_info_handler(struct nl_msg *msg, void *arg) | |
2466 | { | |
2467 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
2468 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
2469 | struct wiphy_info_data *info = arg; | |
2470 | int p2p_go_supported = 0, p2p_client_supported = 0; | |
2471 | int p2p_concurrent = 0, p2p_multichan_concurrent = 0; | |
2472 | int auth_supported = 0, connect_supported = 0; | |
2473 | struct wpa_driver_capa *capa = info->capa; | |
2474 | static struct nla_policy | |
2475 | iface_combination_policy[NUM_NL80211_IFACE_COMB] = { | |
2476 | [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, | |
2477 | [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, | |
2478 | [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, | |
2479 | [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, | |
2480 | }, | |
2481 | iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { | |
2482 | [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, | |
2483 | [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, | |
2484 | }; | |
2485 | ||
2486 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
2487 | genlmsg_attrlen(gnlh, 0), NULL); | |
2488 | ||
2489 | if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) | |
2490 | capa->max_scan_ssids = | |
2491 | nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); | |
2492 | ||
2493 | if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) | |
2494 | capa->max_sched_scan_ssids = | |
2495 | nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); | |
2496 | ||
2497 | if (tb[NL80211_ATTR_MAX_MATCH_SETS]) | |
2498 | capa->max_match_sets = | |
2499 | nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); | |
2500 | ||
2501 | if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) { | |
2502 | struct nlattr *nl_mode; | |
2503 | int i; | |
2504 | nla_for_each_nested(nl_mode, | |
2505 | tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) { | |
2506 | switch (nla_type(nl_mode)) { | |
2507 | case NL80211_IFTYPE_AP: | |
2508 | capa->flags |= WPA_DRIVER_FLAGS_AP; | |
2509 | break; | |
2510 | case NL80211_IFTYPE_P2P_GO: | |
2511 | p2p_go_supported = 1; | |
2512 | break; | |
2513 | case NL80211_IFTYPE_P2P_CLIENT: | |
2514 | p2p_client_supported = 1; | |
2515 | break; | |
2516 | case NL80211_IFTYPE_MONITOR: | |
2517 | info->monitor_supported = 1; | |
2518 | break; | |
2519 | } | |
2520 | } | |
2521 | } | |
2522 | ||
2523 | if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) { | |
2524 | struct nlattr *nl_combi; | |
2525 | int rem_combi; | |
2526 | ||
2527 | nla_for_each_nested(nl_combi, | |
2528 | tb[NL80211_ATTR_INTERFACE_COMBINATIONS], | |
2529 | rem_combi) { | |
2530 | struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; | |
2531 | struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; | |
2532 | struct nlattr *nl_limit, *nl_mode; | |
2533 | int err, rem_limit, rem_mode; | |
2534 | int combination_has_p2p = 0, combination_has_mgd = 0; | |
2535 | ||
2536 | err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, | |
2537 | nl_combi, | |
2538 | iface_combination_policy); | |
2539 | if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || | |
2540 | !tb_comb[NL80211_IFACE_COMB_MAXNUM] || | |
2541 | !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) | |
2542 | goto broken_combination; | |
2543 | ||
2544 | nla_for_each_nested(nl_limit, | |
2545 | tb_comb[NL80211_IFACE_COMB_LIMITS], | |
2546 | rem_limit) { | |
2547 | err = nla_parse_nested(tb_limit, | |
2548 | MAX_NL80211_IFACE_LIMIT, | |
2549 | nl_limit, | |
2550 | iface_limit_policy); | |
2551 | if (err || | |
2552 | !tb_limit[NL80211_IFACE_LIMIT_TYPES]) | |
2553 | goto broken_combination; | |
2554 | ||
2555 | nla_for_each_nested( | |
2556 | nl_mode, | |
2557 | tb_limit[NL80211_IFACE_LIMIT_TYPES], | |
2558 | rem_mode) { | |
2559 | int ift = nla_type(nl_mode); | |
2560 | if (ift == NL80211_IFTYPE_P2P_GO || | |
2561 | ift == NL80211_IFTYPE_P2P_CLIENT) | |
2562 | combination_has_p2p = 1; | |
2563 | if (ift == NL80211_IFTYPE_STATION) | |
2564 | combination_has_mgd = 1; | |
2565 | } | |
2566 | if (combination_has_p2p && combination_has_mgd) | |
2567 | break; | |
2568 | } | |
2569 | ||
2570 | if (combination_has_p2p && combination_has_mgd) { | |
2571 | p2p_concurrent = 1; | |
2572 | if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1) | |
2573 | p2p_multichan_concurrent = 1; | |
2574 | break; | |
2575 | } | |
2576 | ||
2577 | broken_combination: | |
2578 | ; | |
2579 | } | |
2580 | } | |
2581 | ||
2582 | if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) { | |
2583 | struct nlattr *nl_cmd; | |
2584 | int i; | |
2585 | ||
2586 | nla_for_each_nested(nl_cmd, | |
2587 | tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) { | |
2588 | switch (nla_get_u32(nl_cmd)) { | |
2589 | case NL80211_CMD_AUTHENTICATE: | |
2590 | auth_supported = 1; | |
2591 | break; | |
2592 | case NL80211_CMD_CONNECT: | |
2593 | connect_supported = 1; | |
2594 | break; | |
2595 | case NL80211_CMD_START_SCHED_SCAN: | |
2596 | capa->sched_scan_supported = 1; | |
2597 | break; | |
2598 | case NL80211_CMD_PROBE_CLIENT: | |
2599 | info->poll_command_supported = 1; | |
2600 | break; | |
2601 | } | |
2602 | } | |
2603 | } | |
2604 | ||
2605 | if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { | |
2606 | wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " | |
2607 | "off-channel TX"); | |
2608 | capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; | |
2609 | } | |
2610 | ||
2611 | if (tb[NL80211_ATTR_ROAM_SUPPORT]) { | |
2612 | wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); | |
2613 | capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; | |
2614 | } | |
2615 | ||
2616 | /* default to 5000 since early versions of mac80211 don't set it */ | |
2617 | capa->max_remain_on_chan = 5000; | |
2618 | ||
2619 | if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) | |
2620 | capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; | |
2621 | ||
2622 | if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]) | |
2623 | capa->max_remain_on_chan = | |
2624 | nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); | |
2625 | ||
2626 | if (auth_supported) | |
2627 | capa->flags |= WPA_DRIVER_FLAGS_SME; | |
2628 | else if (!connect_supported) { | |
2629 | wpa_printf(MSG_INFO, "nl80211: Driver does not support " | |
2630 | "authentication/association or connect commands"); | |
2631 | info->error = 1; | |
2632 | } | |
2633 | ||
2634 | if (p2p_go_supported && p2p_client_supported) | |
2635 | capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; | |
2636 | if (p2p_concurrent) { | |
2637 | wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " | |
2638 | "interface (driver advertised support)"); | |
2639 | capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; | |
2640 | capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; | |
2641 | ||
2642 | if (p2p_multichan_concurrent) { | |
2643 | wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " | |
2644 | "concurrent (driver advertised support)"); | |
2645 | capa->flags |= | |
2646 | WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; | |
2647 | } | |
2648 | } | |
2649 | ||
2650 | if (tb[NL80211_ATTR_TDLS_SUPPORT]) { | |
2651 | wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); | |
2652 | capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; | |
2653 | ||
2654 | if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) { | |
2655 | wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); | |
2656 | capa->flags |= | |
2657 | WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; | |
2658 | } | |
2659 | } | |
2660 | ||
2661 | if (tb[NL80211_ATTR_DEVICE_AP_SME]) | |
2662 | info->device_ap_sme = 1; | |
2663 | ||
2664 | if (tb[NL80211_ATTR_FEATURE_FLAGS]) { | |
2665 | u32 flags = nla_get_u32(tb[NL80211_ATTR_FEATURE_FLAGS]); | |
2666 | ||
2667 | if (flags & NL80211_FEATURE_SK_TX_STATUS) | |
2668 | info->data_tx_status = 1; | |
2669 | ||
2670 | if (flags & NL80211_FEATURE_INACTIVITY_TIMER) | |
2671 | capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; | |
2672 | ||
2673 | if (flags & NL80211_FEATURE_SAE) | |
2674 | capa->flags |= WPA_DRIVER_FLAGS_SAE; | |
2675 | ||
2676 | if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) | |
2677 | capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; | |
2678 | } | |
2679 | ||
2680 | if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) { | |
2681 | int protocols = | |
2682 | nla_get_u32(tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); | |
2683 | wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response " | |
2684 | "offload in AP mode"); | |
2685 | capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; | |
2686 | capa->probe_resp_offloads = | |
2687 | probe_resp_offload_support(protocols); | |
2688 | } | |
2689 | ||
2690 | return NL_SKIP; | |
2691 | } | |
2692 | ||
2693 | ||
2694 | static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, | |
2695 | struct wiphy_info_data *info) | |
2696 | { | |
2697 | struct nl_msg *msg; | |
2698 | ||
2699 | os_memset(info, 0, sizeof(*info)); | |
2700 | info->capa = &drv->capa; | |
2701 | ||
2702 | msg = nlmsg_alloc(); | |
2703 | if (!msg) | |
2704 | return -1; | |
2705 | ||
2706 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); | |
2707 | ||
2708 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex); | |
2709 | ||
2710 | if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0) | |
2711 | return 0; | |
2712 | msg = NULL; | |
2713 | nla_put_failure: | |
2714 | nlmsg_free(msg); | |
2715 | return -1; | |
2716 | } | |
2717 | ||
2718 | ||
2719 | static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) | |
2720 | { | |
2721 | struct wiphy_info_data info; | |
2722 | if (wpa_driver_nl80211_get_info(drv, &info)) | |
2723 | return -1; | |
2724 | ||
2725 | if (info.error) | |
2726 | return -1; | |
2727 | ||
2728 | drv->has_capability = 1; | |
2729 | /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ | |
2730 | drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | | |
2731 | WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | | |
2732 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | | |
2733 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; | |
2734 | drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | | |
2735 | WPA_DRIVER_CAPA_ENC_WEP104 | | |
2736 | WPA_DRIVER_CAPA_ENC_TKIP | | |
2737 | WPA_DRIVER_CAPA_ENC_CCMP; | |
2738 | drv->capa.auth = WPA_DRIVER_AUTH_OPEN | | |
2739 | WPA_DRIVER_AUTH_SHARED | | |
2740 | WPA_DRIVER_AUTH_LEAP; | |
2741 | ||
2742 | drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; | |
2743 | drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; | |
2744 | drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; | |
2745 | ||
2746 | if (!info.device_ap_sme) { | |
2747 | drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; | |
2748 | ||
2749 | /* | |
2750 | * No AP SME is currently assumed to also indicate no AP MLME | |
2751 | * in the driver/firmware. | |
2752 | */ | |
2753 | drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; | |
2754 | } | |
2755 | ||
2756 | drv->device_ap_sme = info.device_ap_sme; | |
2757 | drv->poll_command_supported = info.poll_command_supported; | |
2758 | drv->data_tx_status = info.data_tx_status; | |
2759 | ||
2760 | /* | |
2761 | * If poll command and tx status are supported, mac80211 is new enough | |
2762 | * to have everything we need to not need monitor interfaces. | |
2763 | */ | |
2764 | drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; | |
2765 | ||
2766 | if (drv->device_ap_sme && drv->use_monitor) { | |
2767 | /* | |
2768 | * Non-mac80211 drivers may not support monitor interface. | |
2769 | * Make sure we do not get stuck with incorrect capability here | |
2770 | * by explicitly testing this. | |
2771 | */ | |
2772 | if (!info.monitor_supported) { | |
2773 | wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " | |
2774 | "with device_ap_sme since no monitor mode " | |
2775 | "support detected"); | |
2776 | drv->use_monitor = 0; | |
2777 | } | |
2778 | } | |
2779 | ||
2780 | /* | |
2781 | * If we aren't going to use monitor interfaces, but the | |
2782 | * driver doesn't support data TX status, we won't get TX | |
2783 | * status for EAPOL frames. | |
2784 | */ | |
2785 | if (!drv->use_monitor && !info.data_tx_status) | |
2786 | drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; | |
2787 | ||
2788 | return 0; | |
2789 | } | |
2790 | ||
2791 | ||
2792 | #ifdef ANDROID | |
2793 | static int android_genl_ctrl_resolve(struct nl_handle *handle, | |
2794 | const char *name) | |
2795 | { | |
2796 | /* | |
2797 | * Android ICS has very minimal genl_ctrl_resolve() implementation, so | |
2798 | * need to work around that. | |
2799 | */ | |
2800 | struct nl_cache *cache = NULL; | |
2801 | struct genl_family *nl80211 = NULL; | |
2802 | int id = -1; | |
2803 | ||
2804 | if (genl_ctrl_alloc_cache(handle, &cache) < 0) { | |
2805 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " | |
2806 | "netlink cache"); | |
2807 | goto fail; | |
2808 | } | |
2809 | ||
2810 | nl80211 = genl_ctrl_search_by_name(cache, name); | |
2811 | if (nl80211 == NULL) | |
2812 | goto fail; | |
2813 | ||
2814 | id = genl_family_get_id(nl80211); | |
2815 | ||
2816 | fail: | |
2817 | if (nl80211) | |
2818 | genl_family_put(nl80211); | |
2819 | if (cache) | |
2820 | nl_cache_free(cache); | |
2821 | ||
2822 | return id; | |
2823 | } | |
2824 | #define genl_ctrl_resolve android_genl_ctrl_resolve | |
2825 | #endif /* ANDROID */ | |
2826 | ||
2827 | ||
2828 | static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) | |
2829 | { | |
2830 | int ret; | |
2831 | ||
2832 | global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); | |
2833 | if (global->nl_cb == NULL) { | |
2834 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " | |
2835 | "callbacks"); | |
2836 | return -1; | |
2837 | } | |
2838 | ||
2839 | global->nl = nl_create_handle(global->nl_cb, "nl"); | |
2840 | if (global->nl == NULL) | |
2841 | goto err; | |
2842 | ||
2843 | global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); | |
2844 | if (global->nl80211_id < 0) { | |
2845 | wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " | |
2846 | "found"); | |
2847 | goto err; | |
2848 | } | |
2849 | ||
2850 | global->nl_event = nl_create_handle(global->nl_cb, "event"); | |
2851 | if (global->nl_event == NULL) | |
2852 | goto err; | |
2853 | ||
2854 | ret = nl_get_multicast_id(global, "nl80211", "scan"); | |
2855 | if (ret >= 0) | |
2856 | ret = nl_socket_add_membership(global->nl_event, ret); | |
2857 | if (ret < 0) { | |
2858 | wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " | |
2859 | "membership for scan events: %d (%s)", | |
2860 | ret, strerror(-ret)); | |
2861 | goto err; | |
2862 | } | |
2863 | ||
2864 | ret = nl_get_multicast_id(global, "nl80211", "mlme"); | |
2865 | if (ret >= 0) | |
2866 | ret = nl_socket_add_membership(global->nl_event, ret); | |
2867 | if (ret < 0) { | |
2868 | wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " | |
2869 | "membership for mlme events: %d (%s)", | |
2870 | ret, strerror(-ret)); | |
2871 | goto err; | |
2872 | } | |
2873 | ||
2874 | ret = nl_get_multicast_id(global, "nl80211", "regulatory"); | |
2875 | if (ret >= 0) | |
2876 | ret = nl_socket_add_membership(global->nl_event, ret); | |
2877 | if (ret < 0) { | |
2878 | wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " | |
2879 | "membership for regulatory events: %d (%s)", | |
2880 | ret, strerror(-ret)); | |
2881 | /* Continue without regulatory events */ | |
2882 | } | |
2883 | ||
2884 | nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, | |
2885 | no_seq_check, NULL); | |
2886 | nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, | |
2887 | process_global_event, global); | |
2888 | ||
2889 | eloop_register_read_sock(nl_socket_get_fd(global->nl_event), | |
2890 | wpa_driver_nl80211_event_receive, | |
2891 | global->nl_cb, global->nl_event); | |
2892 | ||
2893 | return 0; | |
2894 | ||
2895 | err: | |
2896 | nl_destroy_handles(&global->nl_event); | |
2897 | nl_destroy_handles(&global->nl); | |
2898 | nl_cb_put(global->nl_cb); | |
2899 | global->nl_cb = NULL; | |
2900 | return -1; | |
2901 | } | |
2902 | ||
2903 | ||
2904 | static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) | |
2905 | { | |
2906 | drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); | |
2907 | if (!drv->nl_cb) { | |
2908 | wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); | |
2909 | return -1; | |
2910 | } | |
2911 | ||
2912 | nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, | |
2913 | no_seq_check, NULL); | |
2914 | nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, | |
2915 | process_drv_event, drv); | |
2916 | ||
2917 | return 0; | |
2918 | } | |
2919 | ||
2920 | ||
2921 | static void wpa_driver_nl80211_rfkill_blocked(void *ctx) | |
2922 | { | |
2923 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); | |
2924 | /* | |
2925 | * This may be for any interface; use ifdown event to disable | |
2926 | * interface. | |
2927 | */ | |
2928 | } | |
2929 | ||
2930 | ||
2931 | static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) | |
2932 | { | |
2933 | struct wpa_driver_nl80211_data *drv = ctx; | |
2934 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); | |
2935 | if (linux_set_iface_flags(drv->global->ioctl_sock, | |
2936 | drv->first_bss.ifname, 1)) { | |
2937 | wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " | |
2938 | "after rfkill unblock"); | |
2939 | return; | |
2940 | } | |
2941 | /* rtnetlink ifup handler will report interface as enabled */ | |
2942 | } | |
2943 | ||
2944 | ||
2945 | static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv) | |
2946 | { | |
2947 | /* Find phy (radio) to which this interface belongs */ | |
2948 | char buf[90], *pos; | |
2949 | int f, rv; | |
2950 | ||
2951 | drv->phyname[0] = '\0'; | |
2952 | snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name", | |
2953 | drv->first_bss.ifname); | |
2954 | f = open(buf, O_RDONLY); | |
2955 | if (f < 0) { | |
2956 | wpa_printf(MSG_DEBUG, "Could not open file %s: %s", | |
2957 | buf, strerror(errno)); | |
2958 | return; | |
2959 | } | |
2960 | ||
2961 | rv = read(f, drv->phyname, sizeof(drv->phyname) - 1); | |
2962 | close(f); | |
2963 | if (rv < 0) { | |
2964 | wpa_printf(MSG_DEBUG, "Could not read file %s: %s", | |
2965 | buf, strerror(errno)); | |
2966 | return; | |
2967 | } | |
2968 | ||
2969 | drv->phyname[rv] = '\0'; | |
2970 | pos = os_strchr(drv->phyname, '\n'); | |
2971 | if (pos) | |
2972 | *pos = '\0'; | |
2973 | wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", | |
2974 | drv->first_bss.ifname, drv->phyname); | |
2975 | } | |
2976 | ||
2977 | ||
2978 | static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, | |
2979 | void *eloop_ctx, | |
2980 | void *handle) | |
2981 | { | |
2982 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
2983 | u8 data[2048]; | |
2984 | struct msghdr msg; | |
2985 | struct iovec entry; | |
2986 | u8 control[512]; | |
2987 | struct cmsghdr *cmsg; | |
2988 | int res, found_ee = 0, found_wifi = 0, acked = 0; | |
2989 | union wpa_event_data event; | |
2990 | ||
2991 | memset(&msg, 0, sizeof(msg)); | |
2992 | msg.msg_iov = &entry; | |
2993 | msg.msg_iovlen = 1; | |
2994 | entry.iov_base = data; | |
2995 | entry.iov_len = sizeof(data); | |
2996 | msg.msg_control = &control; | |
2997 | msg.msg_controllen = sizeof(control); | |
2998 | ||
2999 | res = recvmsg(sock, &msg, MSG_ERRQUEUE); | |
3000 | /* if error or not fitting 802.3 header, return */ | |
3001 | if (res < 14) | |
3002 | return; | |
3003 | ||
3004 | for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) | |
3005 | { | |
3006 | if (cmsg->cmsg_level == SOL_SOCKET && | |
3007 | cmsg->cmsg_type == SCM_WIFI_STATUS) { | |
3008 | int *ack; | |
3009 | ||
3010 | found_wifi = 1; | |
3011 | ack = (void *)CMSG_DATA(cmsg); | |
3012 | acked = *ack; | |
3013 | } | |
3014 | ||
3015 | if (cmsg->cmsg_level == SOL_PACKET && | |
3016 | cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { | |
3017 | struct sock_extended_err *err = | |
3018 | (struct sock_extended_err *)CMSG_DATA(cmsg); | |
3019 | ||
3020 | if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) | |
3021 | found_ee = 1; | |
3022 | } | |
3023 | } | |
3024 | ||
3025 | if (!found_ee || !found_wifi) | |
3026 | return; | |
3027 | ||
3028 | memset(&event, 0, sizeof(event)); | |
3029 | event.eapol_tx_status.dst = data; | |
3030 | event.eapol_tx_status.data = data + 14; | |
3031 | event.eapol_tx_status.data_len = res - 14; | |
3032 | event.eapol_tx_status.ack = acked; | |
3033 | wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); | |
3034 | } | |
3035 | ||
3036 | ||
3037 | static int nl80211_init_bss(struct i802_bss *bss) | |
3038 | { | |
3039 | bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); | |
3040 | if (!bss->nl_cb) | |
3041 | return -1; | |
3042 | ||
3043 | nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, | |
3044 | no_seq_check, NULL); | |
3045 | nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, | |
3046 | process_bss_event, bss); | |
3047 | ||
3048 | return 0; | |
3049 | } | |
3050 | ||
3051 | ||
3052 | static void nl80211_destroy_bss(struct i802_bss *bss) | |
3053 | { | |
3054 | nl_cb_put(bss->nl_cb); | |
3055 | bss->nl_cb = NULL; | |
3056 | } | |
3057 | ||
3058 | ||
3059 | /** | |
3060 | * wpa_driver_nl80211_init - Initialize nl80211 driver interface | |
3061 | * @ctx: context to be used when calling wpa_supplicant functions, | |
3062 | * e.g., wpa_supplicant_event() | |
3063 | * @ifname: interface name, e.g., wlan0 | |
3064 | * @global_priv: private driver global data from global_init() | |
3065 | * Returns: Pointer to private data, %NULL on failure | |
3066 | */ | |
3067 | static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, | |
3068 | void *global_priv) | |
3069 | { | |
3070 | struct wpa_driver_nl80211_data *drv; | |
3071 | struct rfkill_config *rcfg; | |
3072 | struct i802_bss *bss; | |
3073 | ||
3074 | if (global_priv == NULL) | |
3075 | return NULL; | |
3076 | drv = os_zalloc(sizeof(*drv)); | |
3077 | if (drv == NULL) | |
3078 | return NULL; | |
3079 | drv->global = global_priv; | |
3080 | drv->ctx = ctx; | |
3081 | bss = &drv->first_bss; | |
3082 | bss->drv = drv; | |
3083 | bss->ctx = ctx; | |
3084 | ||
3085 | os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); | |
3086 | drv->monitor_ifidx = -1; | |
3087 | drv->monitor_sock = -1; | |
3088 | drv->eapol_tx_sock = -1; | |
3089 | drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; | |
3090 | ||
3091 | if (wpa_driver_nl80211_init_nl(drv)) { | |
3092 | os_free(drv); | |
3093 | return NULL; | |
3094 | } | |
3095 | ||
3096 | if (nl80211_init_bss(bss)) | |
3097 | goto failed; | |
3098 | ||
3099 | nl80211_get_phy_name(drv); | |
3100 | ||
3101 | rcfg = os_zalloc(sizeof(*rcfg)); | |
3102 | if (rcfg == NULL) | |
3103 | goto failed; | |
3104 | rcfg->ctx = drv; | |
3105 | os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); | |
3106 | rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; | |
3107 | rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; | |
3108 | drv->rfkill = rfkill_init(rcfg); | |
3109 | if (drv->rfkill == NULL) { | |
3110 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); | |
3111 | os_free(rcfg); | |
3112 | } | |
3113 | ||
3114 | if (wpa_driver_nl80211_finish_drv_init(drv)) | |
3115 | goto failed; | |
3116 | ||
3117 | drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); | |
3118 | if (drv->eapol_tx_sock < 0) | |
3119 | goto failed; | |
3120 | ||
3121 | if (drv->data_tx_status) { | |
3122 | int enabled = 1; | |
3123 | ||
3124 | if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, | |
3125 | &enabled, sizeof(enabled)) < 0) { | |
3126 | wpa_printf(MSG_DEBUG, | |
3127 | "nl80211: wifi status sockopt failed\n"); | |
3128 | drv->data_tx_status = 0; | |
3129 | if (!drv->use_monitor) | |
3130 | drv->capa.flags &= | |
3131 | ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; | |
3132 | } else { | |
3133 | eloop_register_read_sock(drv->eapol_tx_sock, | |
3134 | wpa_driver_nl80211_handle_eapol_tx_status, | |
3135 | drv, NULL); | |
3136 | } | |
3137 | } | |
3138 | ||
3139 | if (drv->global) { | |
3140 | dl_list_add(&drv->global->interfaces, &drv->list); | |
3141 | drv->in_interface_list = 1; | |
3142 | } | |
3143 | ||
3144 | return bss; | |
3145 | ||
3146 | failed: | |
3147 | wpa_driver_nl80211_deinit(bss); | |
3148 | return NULL; | |
3149 | } | |
3150 | ||
3151 | ||
3152 | static int nl80211_register_frame(struct i802_bss *bss, | |
3153 | struct nl_handle *nl_handle, | |
3154 | u16 type, const u8 *match, size_t match_len) | |
3155 | { | |
3156 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3157 | struct nl_msg *msg; | |
3158 | int ret = -1; | |
3159 | ||
3160 | msg = nlmsg_alloc(); | |
3161 | if (!msg) | |
3162 | return -1; | |
3163 | ||
3164 | wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", | |
3165 | type, nl_handle); | |
3166 | wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", | |
3167 | match, match_len); | |
3168 | ||
3169 | nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); | |
3170 | ||
3171 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
3172 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); | |
3173 | NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); | |
3174 | ||
3175 | ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); | |
3176 | msg = NULL; | |
3177 | if (ret) { | |
3178 | wpa_printf(MSG_DEBUG, "nl80211: Register frame command " | |
3179 | "failed (type=%u): ret=%d (%s)", | |
3180 | type, ret, strerror(-ret)); | |
3181 | wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", | |
3182 | match, match_len); | |
3183 | goto nla_put_failure; | |
3184 | } | |
3185 | ret = 0; | |
3186 | nla_put_failure: | |
3187 | nlmsg_free(msg); | |
3188 | return ret; | |
3189 | } | |
3190 | ||
3191 | ||
3192 | static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) | |
3193 | { | |
3194 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3195 | ||
3196 | if (bss->nl_mgmt) { | |
3197 | wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " | |
3198 | "already on! (nl_mgmt=%p)", bss->nl_mgmt); | |
3199 | return -1; | |
3200 | } | |
3201 | ||
3202 | bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); | |
3203 | if (bss->nl_mgmt == NULL) | |
3204 | return -1; | |
3205 | ||
3206 | eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), | |
3207 | wpa_driver_nl80211_event_receive, bss->nl_cb, | |
3208 | bss->nl_mgmt); | |
3209 | ||
3210 | return 0; | |
3211 | } | |
3212 | ||
3213 | ||
3214 | static int nl80211_register_action_frame(struct i802_bss *bss, | |
3215 | const u8 *match, size_t match_len) | |
3216 | { | |
3217 | u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); | |
3218 | return nl80211_register_frame(bss, bss->nl_mgmt, | |
3219 | type, match, match_len); | |
3220 | } | |
3221 | ||
3222 | ||
3223 | static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) | |
3224 | { | |
3225 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3226 | ||
3227 | if (nl80211_alloc_mgmt_handle(bss)) | |
3228 | return -1; | |
3229 | wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " | |
3230 | "handle %p", bss->nl_mgmt); | |
3231 | ||
3232 | #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) | |
3233 | /* GAS Initial Request */ | |
3234 | if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) | |
3235 | return -1; | |
3236 | /* GAS Initial Response */ | |
3237 | if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) | |
3238 | return -1; | |
3239 | /* GAS Comeback Request */ | |
3240 | if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) | |
3241 | return -1; | |
3242 | /* GAS Comeback Response */ | |
3243 | if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) | |
3244 | return -1; | |
3245 | #endif /* CONFIG_P2P || CONFIG_INTERWORKING */ | |
3246 | #ifdef CONFIG_P2P | |
3247 | /* P2P Public Action */ | |
3248 | if (nl80211_register_action_frame(bss, | |
3249 | (u8 *) "\x04\x09\x50\x6f\x9a\x09", | |
3250 | 6) < 0) | |
3251 | return -1; | |
3252 | /* P2P Action */ | |
3253 | if (nl80211_register_action_frame(bss, | |
3254 | (u8 *) "\x7f\x50\x6f\x9a\x09", | |
3255 | 5) < 0) | |
3256 | return -1; | |
3257 | #endif /* CONFIG_P2P */ | |
3258 | #ifdef CONFIG_IEEE80211W | |
3259 | /* SA Query Response */ | |
3260 | if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) | |
3261 | return -1; | |
3262 | #endif /* CONFIG_IEEE80211W */ | |
3263 | #ifdef CONFIG_TDLS | |
3264 | if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { | |
3265 | /* TDLS Discovery Response */ | |
3266 | if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < | |
3267 | 0) | |
3268 | return -1; | |
3269 | } | |
3270 | #endif /* CONFIG_TDLS */ | |
3271 | ||
3272 | /* FT Action frames */ | |
3273 | if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) | |
3274 | return -1; | |
3275 | else | |
3276 | drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | | |
3277 | WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; | |
3278 | ||
3279 | /* WNM - BSS Transition Management Request */ | |
3280 | if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) | |
3281 | return -1; | |
3282 | /* WNM-Sleep Mode Response */ | |
3283 | if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) | |
3284 | return -1; | |
3285 | ||
3286 | return 0; | |
3287 | } | |
3288 | ||
3289 | ||
3290 | static int nl80211_register_spurious_class3(struct i802_bss *bss) | |
3291 | { | |
3292 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3293 | struct nl_msg *msg; | |
3294 | int ret = -1; | |
3295 | ||
3296 | msg = nlmsg_alloc(); | |
3297 | if (!msg) | |
3298 | return -1; | |
3299 | ||
3300 | nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); | |
3301 | ||
3302 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
3303 | ||
3304 | ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); | |
3305 | msg = NULL; | |
3306 | if (ret) { | |
3307 | wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " | |
3308 | "failed: ret=%d (%s)", | |
3309 | ret, strerror(-ret)); | |
3310 | goto nla_put_failure; | |
3311 | } | |
3312 | ret = 0; | |
3313 | nla_put_failure: | |
3314 | nlmsg_free(msg); | |
3315 | return ret; | |
3316 | } | |
3317 | ||
3318 | ||
3319 | static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) | |
3320 | { | |
3321 | static const int stypes[] = { | |
3322 | WLAN_FC_STYPE_AUTH, | |
3323 | WLAN_FC_STYPE_ASSOC_REQ, | |
3324 | WLAN_FC_STYPE_REASSOC_REQ, | |
3325 | WLAN_FC_STYPE_DISASSOC, | |
3326 | WLAN_FC_STYPE_DEAUTH, | |
3327 | WLAN_FC_STYPE_ACTION, | |
3328 | WLAN_FC_STYPE_PROBE_REQ, | |
3329 | /* Beacon doesn't work as mac80211 doesn't currently allow | |
3330 | * it, but it wouldn't really be the right thing anyway as | |
3331 | * it isn't per interface ... maybe just dump the scan | |
3332 | * results periodically for OLBC? | |
3333 | */ | |
3334 | // WLAN_FC_STYPE_BEACON, | |
3335 | }; | |
3336 | unsigned int i; | |
3337 | ||
3338 | if (nl80211_alloc_mgmt_handle(bss)) | |
3339 | return -1; | |
3340 | wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " | |
3341 | "handle %p", bss->nl_mgmt); | |
3342 | ||
3343 | for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { | |
3344 | if (nl80211_register_frame(bss, bss->nl_mgmt, | |
3345 | (WLAN_FC_TYPE_MGMT << 2) | | |
3346 | (stypes[i] << 4), | |
3347 | NULL, 0) < 0) { | |
3348 | goto out_err; | |
3349 | } | |
3350 | } | |
3351 | ||
3352 | if (nl80211_register_spurious_class3(bss)) | |
3353 | goto out_err; | |
3354 | ||
3355 | if (nl80211_get_wiphy_data_ap(bss) == NULL) | |
3356 | goto out_err; | |
3357 | ||
3358 | return 0; | |
3359 | ||
3360 | out_err: | |
3361 | eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); | |
3362 | nl_destroy_handles(&bss->nl_mgmt); | |
3363 | return -1; | |
3364 | } | |
3365 | ||
3366 | ||
3367 | static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) | |
3368 | { | |
3369 | if (nl80211_alloc_mgmt_handle(bss)) | |
3370 | return -1; | |
3371 | wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " | |
3372 | "handle %p (device SME)", bss->nl_mgmt); | |
3373 | ||
3374 | if (nl80211_register_frame(bss, bss->nl_mgmt, | |
3375 | (WLAN_FC_TYPE_MGMT << 2) | | |
3376 | (WLAN_FC_STYPE_ACTION << 4), | |
3377 | NULL, 0) < 0) | |
3378 | goto out_err; | |
3379 | ||
3380 | return 0; | |
3381 | ||
3382 | out_err: | |
3383 | eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); | |
3384 | nl_destroy_handles(&bss->nl_mgmt); | |
3385 | return -1; | |
3386 | } | |
3387 | ||
3388 | ||
3389 | static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) | |
3390 | { | |
3391 | if (bss->nl_mgmt == NULL) | |
3392 | return; | |
3393 | wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " | |
3394 | "(%s)", bss->nl_mgmt, reason); | |
3395 | eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); | |
3396 | nl_destroy_handles(&bss->nl_mgmt); | |
3397 | ||
3398 | nl80211_put_wiphy_data_ap(bss); | |
3399 | } | |
3400 | ||
3401 | ||
3402 | static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) | |
3403 | { | |
3404 | wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); | |
3405 | } | |
3406 | ||
3407 | ||
3408 | static int | |
3409 | wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) | |
3410 | { | |
3411 | struct i802_bss *bss = &drv->first_bss; | |
3412 | int send_rfkill_event = 0; | |
3413 | ||
3414 | drv->ifindex = if_nametoindex(bss->ifname); | |
3415 | drv->first_bss.ifindex = drv->ifindex; | |
3416 | ||
3417 | #ifndef HOSTAPD | |
3418 | /* | |
3419 | * Make sure the interface starts up in station mode unless this is a | |
3420 | * dynamically added interface (e.g., P2P) that was already configured | |
3421 | * with proper iftype. | |
3422 | */ | |
3423 | if (drv->ifindex != drv->global->if_add_ifindex && | |
3424 | wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) { | |
3425 | wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to " | |
3426 | "use managed mode"); | |
3427 | return -1; | |
3428 | } | |
3429 | ||
3430 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { | |
3431 | if (rfkill_is_blocked(drv->rfkill)) { | |
3432 | wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " | |
3433 | "interface '%s' due to rfkill", | |
3434 | bss->ifname); | |
3435 | drv->if_disabled = 1; | |
3436 | send_rfkill_event = 1; | |
3437 | } else { | |
3438 | wpa_printf(MSG_ERROR, "nl80211: Could not set " | |
3439 | "interface '%s' UP", bss->ifname); | |
3440 | return -1; | |
3441 | } | |
3442 | } | |
3443 | ||
3444 | netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, | |
3445 | 1, IF_OPER_DORMANT); | |
3446 | #endif /* HOSTAPD */ | |
3447 | ||
3448 | if (wpa_driver_nl80211_capa(drv)) | |
3449 | return -1; | |
3450 | ||
3451 | if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, | |
3452 | bss->addr)) | |
3453 | return -1; | |
3454 | ||
3455 | if (send_rfkill_event) { | |
3456 | eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, | |
3457 | drv, drv->ctx); | |
3458 | } | |
3459 | ||
3460 | return 0; | |
3461 | } | |
3462 | ||
3463 | ||
3464 | static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) | |
3465 | { | |
3466 | struct nl_msg *msg; | |
3467 | ||
3468 | msg = nlmsg_alloc(); | |
3469 | if (!msg) | |
3470 | return -ENOMEM; | |
3471 | ||
3472 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); | |
3473 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3474 | ||
3475 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
3476 | nla_put_failure: | |
3477 | nlmsg_free(msg); | |
3478 | return -ENOBUFS; | |
3479 | } | |
3480 | ||
3481 | ||
3482 | /** | |
3483 | * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface | |
3484 | * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init() | |
3485 | * | |
3486 | * Shut down driver interface and processing of driver events. Free | |
3487 | * private data buffer if one was allocated in wpa_driver_nl80211_init(). | |
3488 | */ | |
3489 | static void wpa_driver_nl80211_deinit(void *priv) | |
3490 | { | |
3491 | struct i802_bss *bss = priv; | |
3492 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3493 | ||
3494 | bss->in_deinit = 1; | |
3495 | if (drv->data_tx_status) | |
3496 | eloop_unregister_read_sock(drv->eapol_tx_sock); | |
3497 | if (drv->eapol_tx_sock >= 0) | |
3498 | close(drv->eapol_tx_sock); | |
3499 | ||
3500 | if (bss->nl_preq) | |
3501 | wpa_driver_nl80211_probe_req_report(bss, 0); | |
3502 | if (bss->added_if_into_bridge) { | |
3503 | if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, | |
3504 | bss->ifname) < 0) | |
3505 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " | |
3506 | "interface %s from bridge %s: %s", | |
3507 | bss->ifname, bss->brname, strerror(errno)); | |
3508 | } | |
3509 | if (bss->added_bridge) { | |
3510 | if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) | |
3511 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " | |
3512 | "bridge %s: %s", | |
3513 | bss->brname, strerror(errno)); | |
3514 | } | |
3515 | ||
3516 | nl80211_remove_monitor_interface(drv); | |
3517 | ||
3518 | if (is_ap_interface(drv->nlmode)) | |
3519 | wpa_driver_nl80211_del_beacon(drv); | |
3520 | ||
3521 | #ifdef HOSTAPD | |
3522 | if (drv->last_freq_ht) { | |
3523 | /* Clear HT flags from the driver */ | |
3524 | struct hostapd_freq_params freq; | |
3525 | os_memset(&freq, 0, sizeof(freq)); | |
3526 | freq.freq = drv->last_freq; | |
3527 | i802_set_freq(priv, &freq); | |
3528 | } | |
3529 | ||
3530 | if (drv->eapol_sock >= 0) { | |
3531 | eloop_unregister_read_sock(drv->eapol_sock); | |
3532 | close(drv->eapol_sock); | |
3533 | } | |
3534 | ||
3535 | if (drv->if_indices != drv->default_if_indices) | |
3536 | os_free(drv->if_indices); | |
3537 | #endif /* HOSTAPD */ | |
3538 | ||
3539 | if (drv->disabled_11b_rates) | |
3540 | nl80211_disable_11b_rates(drv, drv->ifindex, 0); | |
3541 | ||
3542 | netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, | |
3543 | IF_OPER_UP); | |
3544 | rfkill_deinit(drv->rfkill); | |
3545 | ||
3546 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); | |
3547 | ||
3548 | (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0); | |
3549 | wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); | |
3550 | nl80211_mgmt_unsubscribe(bss, "deinit"); | |
3551 | ||
3552 | nl_cb_put(drv->nl_cb); | |
3553 | ||
3554 | nl80211_destroy_bss(&drv->first_bss); | |
3555 | ||
3556 | os_free(drv->filter_ssids); | |
3557 | ||
3558 | os_free(drv->auth_ie); | |
3559 | ||
3560 | if (drv->in_interface_list) | |
3561 | dl_list_del(&drv->list); | |
3562 | ||
3563 | os_free(drv); | |
3564 | } | |
3565 | ||
3566 | ||
3567 | /** | |
3568 | * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion | |
3569 | * @eloop_ctx: Driver private data | |
3570 | * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() | |
3571 | * | |
3572 | * This function can be used as registered timeout when starting a scan to | |
3573 | * generate a scan completed event if the driver does not report this. | |
3574 | */ | |
3575 | static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) | |
3576 | { | |
3577 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
3578 | if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { | |
3579 | wpa_driver_nl80211_set_mode(&drv->first_bss, | |
3580 | drv->ap_scan_as_station); | |
3581 | drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; | |
3582 | } | |
3583 | wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); | |
3584 | wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); | |
3585 | } | |
3586 | ||
3587 | ||
3588 | static struct nl_msg * | |
3589 | nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, | |
3590 | struct wpa_driver_scan_params *params) | |
3591 | { | |
3592 | struct nl_msg *msg; | |
3593 | int err; | |
3594 | size_t i; | |
3595 | ||
3596 | msg = nlmsg_alloc(); | |
3597 | if (!msg) | |
3598 | return NULL; | |
3599 | ||
3600 | nl80211_cmd(drv, msg, 0, cmd); | |
3601 | ||
3602 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) < 0) | |
3603 | goto fail; | |
3604 | ||
3605 | if (params->num_ssids) { | |
3606 | struct nl_msg *ssids = nlmsg_alloc(); | |
3607 | if (ssids == NULL) | |
3608 | goto fail; | |
3609 | for (i = 0; i < params->num_ssids; i++) { | |
3610 | wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", | |
3611 | params->ssids[i].ssid, | |
3612 | params->ssids[i].ssid_len); | |
3613 | if (nla_put(ssids, i + 1, params->ssids[i].ssid_len, | |
3614 | params->ssids[i].ssid) < 0) { | |
3615 | nlmsg_free(ssids); | |
3616 | goto fail; | |
3617 | } | |
3618 | } | |
3619 | err = nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
3620 | nlmsg_free(ssids); | |
3621 | if (err < 0) | |
3622 | goto fail; | |
3623 | } | |
3624 | ||
3625 | if (params->extra_ies) { | |
3626 | wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", | |
3627 | params->extra_ies, params->extra_ies_len); | |
3628 | if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, | |
3629 | params->extra_ies) < 0) | |
3630 | goto fail; | |
3631 | } | |
3632 | ||
3633 | if (params->freqs) { | |
3634 | struct nl_msg *freqs = nlmsg_alloc(); | |
3635 | if (freqs == NULL) | |
3636 | goto fail; | |
3637 | for (i = 0; params->freqs[i]; i++) { | |
3638 | wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " | |
3639 | "MHz", params->freqs[i]); | |
3640 | if (nla_put_u32(freqs, i + 1, params->freqs[i]) < 0) { | |
3641 | nlmsg_free(freqs); | |
3642 | goto fail; | |
3643 | } | |
3644 | } | |
3645 | err = nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, | |
3646 | freqs); | |
3647 | nlmsg_free(freqs); | |
3648 | if (err < 0) | |
3649 | goto fail; | |
3650 | } | |
3651 | ||
3652 | os_free(drv->filter_ssids); | |
3653 | drv->filter_ssids = params->filter_ssids; | |
3654 | params->filter_ssids = NULL; | |
3655 | drv->num_filter_ssids = params->num_filter_ssids; | |
3656 | ||
3657 | return msg; | |
3658 | ||
3659 | fail: | |
3660 | nlmsg_free(msg); | |
3661 | return NULL; | |
3662 | } | |
3663 | ||
3664 | ||
3665 | /** | |
3666 | * wpa_driver_nl80211_scan - Request the driver to initiate scan | |
3667 | * @priv: Pointer to private driver data from wpa_driver_nl80211_init() | |
3668 | * @params: Scan parameters | |
3669 | * Returns: 0 on success, -1 on failure | |
3670 | */ | |
3671 | static int wpa_driver_nl80211_scan(void *priv, | |
3672 | struct wpa_driver_scan_params *params) | |
3673 | { | |
3674 | struct i802_bss *bss = priv; | |
3675 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3676 | int ret = -1, timeout; | |
3677 | struct nl_msg *msg, *rates = NULL; | |
3678 | ||
3679 | drv->scan_for_auth = 0; | |
3680 | ||
3681 | msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params); | |
3682 | if (!msg) | |
3683 | return -1; | |
3684 | ||
3685 | if (params->p2p_probe) { | |
3686 | wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); | |
3687 | ||
3688 | rates = nlmsg_alloc(); | |
3689 | if (rates == NULL) | |
3690 | goto nla_put_failure; | |
3691 | ||
3692 | /* | |
3693 | * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates | |
3694 | * by masking out everything else apart from the OFDM rates 6, | |
3695 | * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz | |
3696 | * rates are left enabled. | |
3697 | */ | |
3698 | NLA_PUT(rates, NL80211_BAND_2GHZ, 8, | |
3699 | "\x0c\x12\x18\x24\x30\x48\x60\x6c"); | |
3700 | if (nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates) < | |
3701 | 0) | |
3702 | goto nla_put_failure; | |
3703 | ||
3704 | NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); | |
3705 | } | |
3706 | ||
3707 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3708 | msg = NULL; | |
3709 | if (ret) { | |
3710 | wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " | |
3711 | "(%s)", ret, strerror(-ret)); | |
3712 | #ifdef HOSTAPD | |
3713 | if (is_ap_interface(drv->nlmode)) { | |
3714 | /* | |
3715 | * mac80211 does not allow scan requests in AP mode, so | |
3716 | * try to do this in station mode. | |
3717 | */ | |
3718 | if (wpa_driver_nl80211_set_mode( | |
3719 | bss, NL80211_IFTYPE_STATION)) | |
3720 | goto nla_put_failure; | |
3721 | ||
3722 | if (wpa_driver_nl80211_scan(bss, params)) { | |
3723 | wpa_driver_nl80211_set_mode(bss, drv->nlmode); | |
3724 | goto nla_put_failure; | |
3725 | } | |
3726 | ||
3727 | /* Restore AP mode when processing scan results */ | |
3728 | drv->ap_scan_as_station = drv->nlmode; | |
3729 | ret = 0; | |
3730 | } else | |
3731 | goto nla_put_failure; | |
3732 | #else /* HOSTAPD */ | |
3733 | goto nla_put_failure; | |
3734 | #endif /* HOSTAPD */ | |
3735 | } | |
3736 | ||
3737 | /* Not all drivers generate "scan completed" wireless event, so try to | |
3738 | * read results after a timeout. */ | |
3739 | timeout = 10; | |
3740 | if (drv->scan_complete_events) { | |
3741 | /* | |
3742 | * The driver seems to deliver events to notify when scan is | |
3743 | * complete, so use longer timeout to avoid race conditions | |
3744 | * with scanning and following association request. | |
3745 | */ | |
3746 | timeout = 30; | |
3747 | } | |
3748 | wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " | |
3749 | "seconds", ret, timeout); | |
3750 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); | |
3751 | eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, | |
3752 | drv, drv->ctx); | |
3753 | ||
3754 | nla_put_failure: | |
3755 | nlmsg_free(msg); | |
3756 | nlmsg_free(rates); | |
3757 | return ret; | |
3758 | } | |
3759 | ||
3760 | ||
3761 | /** | |
3762 | * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan | |
3763 | * @priv: Pointer to private driver data from wpa_driver_nl80211_init() | |
3764 | * @params: Scan parameters | |
3765 | * @interval: Interval between scan cycles in milliseconds | |
3766 | * Returns: 0 on success, -1 on failure or if not supported | |
3767 | */ | |
3768 | static int wpa_driver_nl80211_sched_scan(void *priv, | |
3769 | struct wpa_driver_scan_params *params, | |
3770 | u32 interval) | |
3771 | { | |
3772 | struct i802_bss *bss = priv; | |
3773 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3774 | int ret = -1; | |
3775 | struct nl_msg *msg; | |
3776 | struct nl_msg *match_set_ssid = NULL, *match_sets = NULL; | |
3777 | struct nl_msg *match_set_rssi = NULL; | |
3778 | size_t i; | |
3779 | ||
3780 | #ifdef ANDROID | |
3781 | if (!drv->capa.sched_scan_supported) | |
3782 | return android_pno_start(bss, params); | |
3783 | #endif /* ANDROID */ | |
3784 | ||
3785 | msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params); | |
3786 | if (!msg) | |
3787 | goto nla_put_failure; | |
3788 | ||
3789 | NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); | |
3790 | ||
3791 | if ((drv->num_filter_ssids && | |
3792 | (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || | |
3793 | params->filter_rssi) { | |
3794 | match_sets = nlmsg_alloc(); | |
3795 | if (match_sets == NULL) | |
3796 | goto nla_put_failure; | |
3797 | ||
3798 | for (i = 0; i < drv->num_filter_ssids; i++) { | |
3799 | wpa_hexdump_ascii(MSG_MSGDUMP, | |
3800 | "nl80211: Sched scan filter SSID", | |
3801 | drv->filter_ssids[i].ssid, | |
3802 | drv->filter_ssids[i].ssid_len); | |
3803 | ||
3804 | match_set_ssid = nlmsg_alloc(); | |
3805 | if (match_set_ssid == NULL) | |
3806 | goto nla_put_failure; | |
3807 | NLA_PUT(match_set_ssid, | |
3808 | NL80211_ATTR_SCHED_SCAN_MATCH_SSID, | |
3809 | drv->filter_ssids[i].ssid_len, | |
3810 | drv->filter_ssids[i].ssid); | |
3811 | ||
3812 | if (nla_put_nested(match_sets, i + 1, match_set_ssid) < | |
3813 | 0) | |
3814 | goto nla_put_failure; | |
3815 | } | |
3816 | ||
3817 | if (params->filter_rssi) { | |
3818 | match_set_rssi = nlmsg_alloc(); | |
3819 | if (match_set_rssi == NULL) | |
3820 | goto nla_put_failure; | |
3821 | NLA_PUT_U32(match_set_rssi, | |
3822 | NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, | |
3823 | params->filter_rssi); | |
3824 | wpa_printf(MSG_MSGDUMP, | |
3825 | "nl80211: Sched scan RSSI filter %d dBm", | |
3826 | params->filter_rssi); | |
3827 | if (nla_put_nested(match_sets, 0, match_set_rssi) < 0) | |
3828 | goto nla_put_failure; | |
3829 | } | |
3830 | ||
3831 | if (nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH, | |
3832 | match_sets) < 0) | |
3833 | goto nla_put_failure; | |
3834 | } | |
3835 | ||
3836 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3837 | ||
3838 | /* TODO: if we get an error here, we should fall back to normal scan */ | |
3839 | ||
3840 | msg = NULL; | |
3841 | if (ret) { | |
3842 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " | |
3843 | "ret=%d (%s)", ret, strerror(-ret)); | |
3844 | goto nla_put_failure; | |
3845 | } | |
3846 | ||
3847 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " | |
3848 | "scan interval %d msec", ret, interval); | |
3849 | ||
3850 | nla_put_failure: | |
3851 | nlmsg_free(match_set_ssid); | |
3852 | nlmsg_free(match_sets); | |
3853 | nlmsg_free(match_set_rssi); | |
3854 | nlmsg_free(msg); | |
3855 | return ret; | |
3856 | } | |
3857 | ||
3858 | ||
3859 | /** | |
3860 | * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan | |
3861 | * @priv: Pointer to private driver data from wpa_driver_nl80211_init() | |
3862 | * Returns: 0 on success, -1 on failure or if not supported | |
3863 | */ | |
3864 | static int wpa_driver_nl80211_stop_sched_scan(void *priv) | |
3865 | { | |
3866 | struct i802_bss *bss = priv; | |
3867 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3868 | int ret = 0; | |
3869 | struct nl_msg *msg; | |
3870 | ||
3871 | #ifdef ANDROID | |
3872 | if (!drv->capa.sched_scan_supported) | |
3873 | return android_pno_stop(bss); | |
3874 | #endif /* ANDROID */ | |
3875 | ||
3876 | msg = nlmsg_alloc(); | |
3877 | if (!msg) | |
3878 | return -1; | |
3879 | ||
3880 | nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); | |
3881 | ||
3882 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3883 | ||
3884 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3885 | msg = NULL; | |
3886 | if (ret) { | |
3887 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " | |
3888 | "ret=%d (%s)", ret, strerror(-ret)); | |
3889 | goto nla_put_failure; | |
3890 | } | |
3891 | ||
3892 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); | |
3893 | ||
3894 | nla_put_failure: | |
3895 | nlmsg_free(msg); | |
3896 | return ret; | |
3897 | } | |
3898 | ||
3899 | ||
3900 | static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) | |
3901 | { | |
3902 | const u8 *end, *pos; | |
3903 | ||
3904 | if (ies == NULL) | |
3905 | return NULL; | |
3906 | ||
3907 | pos = ies; | |
3908 | end = ies + ies_len; | |
3909 | ||
3910 | while (pos + 1 < end) { | |
3911 | if (pos + 2 + pos[1] > end) | |
3912 | break; | |
3913 | if (pos[0] == ie) | |
3914 | return pos; | |
3915 | pos += 2 + pos[1]; | |
3916 | } | |
3917 | ||
3918 | return NULL; | |
3919 | } | |
3920 | ||
3921 | ||
3922 | static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, | |
3923 | const u8 *ie, size_t ie_len) | |
3924 | { | |
3925 | const u8 *ssid; | |
3926 | size_t i; | |
3927 | ||
3928 | if (drv->filter_ssids == NULL) | |
3929 | return 0; | |
3930 | ||
3931 | ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); | |
3932 | if (ssid == NULL) | |
3933 | return 1; | |
3934 | ||
3935 | for (i = 0; i < drv->num_filter_ssids; i++) { | |
3936 | if (ssid[1] == drv->filter_ssids[i].ssid_len && | |
3937 | os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == | |
3938 | 0) | |
3939 | return 0; | |
3940 | } | |
3941 | ||
3942 | return 1; | |
3943 | } | |
3944 | ||
3945 | ||
3946 | static int bss_info_handler(struct nl_msg *msg, void *arg) | |
3947 | { | |
3948 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
3949 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
3950 | struct nlattr *bss[NL80211_BSS_MAX + 1]; | |
3951 | static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { | |
3952 | [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, | |
3953 | [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, | |
3954 | [NL80211_BSS_TSF] = { .type = NLA_U64 }, | |
3955 | [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, | |
3956 | [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, | |
3957 | [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, | |
3958 | [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, | |
3959 | [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, | |
3960 | [NL80211_BSS_STATUS] = { .type = NLA_U32 }, | |
3961 | [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, | |
3962 | [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, | |
3963 | }; | |
3964 | struct nl80211_bss_info_arg *_arg = arg; | |
3965 | struct wpa_scan_results *res = _arg->res; | |
3966 | struct wpa_scan_res **tmp; | |
3967 | struct wpa_scan_res *r; | |
3968 | const u8 *ie, *beacon_ie; | |
3969 | size_t ie_len, beacon_ie_len; | |
3970 | u8 *pos; | |
3971 | size_t i; | |
3972 | ||
3973 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
3974 | genlmsg_attrlen(gnlh, 0), NULL); | |
3975 | if (!tb[NL80211_ATTR_BSS]) | |
3976 | return NL_SKIP; | |
3977 | if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], | |
3978 | bss_policy)) | |
3979 | return NL_SKIP; | |
3980 | if (bss[NL80211_BSS_STATUS]) { | |
3981 | enum nl80211_bss_status status; | |
3982 | status = nla_get_u32(bss[NL80211_BSS_STATUS]); | |
3983 | if (status == NL80211_BSS_STATUS_ASSOCIATED && | |
3984 | bss[NL80211_BSS_FREQUENCY]) { | |
3985 | _arg->assoc_freq = | |
3986 | nla_get_u32(bss[NL80211_BSS_FREQUENCY]); | |
3987 | wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", | |
3988 | _arg->assoc_freq); | |
3989 | } | |
3990 | if (status == NL80211_BSS_STATUS_ASSOCIATED && | |
3991 | bss[NL80211_BSS_BSSID]) { | |
3992 | os_memcpy(_arg->assoc_bssid, | |
3993 | nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); | |
3994 | wpa_printf(MSG_DEBUG, "nl80211: Associated with " | |
3995 | MACSTR, MAC2STR(_arg->assoc_bssid)); | |
3996 | } | |
3997 | } | |
3998 | if (!res) | |
3999 | return NL_SKIP; | |
4000 | if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { | |
4001 | ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); | |
4002 | ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); | |
4003 | } else { | |
4004 | ie = NULL; | |
4005 | ie_len = 0; | |
4006 | } | |
4007 | if (bss[NL80211_BSS_BEACON_IES]) { | |
4008 | beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); | |
4009 | beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); | |
4010 | } else { | |
4011 | beacon_ie = NULL; | |
4012 | beacon_ie_len = 0; | |
4013 | } | |
4014 | ||
4015 | if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, | |
4016 | ie ? ie_len : beacon_ie_len)) | |
4017 | return NL_SKIP; | |
4018 | ||
4019 | r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); | |
4020 | if (r == NULL) | |
4021 | return NL_SKIP; | |
4022 | if (bss[NL80211_BSS_BSSID]) | |
4023 | os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), | |
4024 | ETH_ALEN); | |
4025 | if (bss[NL80211_BSS_FREQUENCY]) | |
4026 | r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); | |
4027 | if (bss[NL80211_BSS_BEACON_INTERVAL]) | |
4028 | r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); | |
4029 | if (bss[NL80211_BSS_CAPABILITY]) | |
4030 | r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); | |
4031 | r->flags |= WPA_SCAN_NOISE_INVALID; | |
4032 | if (bss[NL80211_BSS_SIGNAL_MBM]) { | |
4033 | r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); | |
4034 | r->level /= 100; /* mBm to dBm */ | |
4035 | r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; | |
4036 | } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { | |
4037 | r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); | |
4038 | r->flags |= WPA_SCAN_QUAL_INVALID; | |
4039 | } else | |
4040 | r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; | |
4041 | if (bss[NL80211_BSS_TSF]) | |
4042 | r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); | |
4043 | if (bss[NL80211_BSS_SEEN_MS_AGO]) | |
4044 | r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); | |
4045 | r->ie_len = ie_len; | |
4046 | pos = (u8 *) (r + 1); | |
4047 | if (ie) { | |
4048 | os_memcpy(pos, ie, ie_len); | |
4049 | pos += ie_len; | |
4050 | } | |
4051 | r->beacon_ie_len = beacon_ie_len; | |
4052 | if (beacon_ie) | |
4053 | os_memcpy(pos, beacon_ie, beacon_ie_len); | |
4054 | ||
4055 | if (bss[NL80211_BSS_STATUS]) { | |
4056 | enum nl80211_bss_status status; | |
4057 | status = nla_get_u32(bss[NL80211_BSS_STATUS]); | |
4058 | switch (status) { | |
4059 | case NL80211_BSS_STATUS_AUTHENTICATED: | |
4060 | r->flags |= WPA_SCAN_AUTHENTICATED; | |
4061 | break; | |
4062 | case NL80211_BSS_STATUS_ASSOCIATED: | |
4063 | r->flags |= WPA_SCAN_ASSOCIATED; | |
4064 | break; | |
4065 | default: | |
4066 | break; | |
4067 | } | |
4068 | } | |
4069 | ||
4070 | /* | |
4071 | * cfg80211 maintains separate BSS table entries for APs if the same | |
4072 | * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does | |
4073 | * not use frequency as a separate key in the BSS table, so filter out | |
4074 | * duplicated entries. Prefer associated BSS entry in such a case in | |
4075 | * order to get the correct frequency into the BSS table. | |
4076 | */ | |
4077 | for (i = 0; i < res->num; i++) { | |
4078 | const u8 *s1, *s2; | |
4079 | if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) | |
4080 | continue; | |
4081 | ||
4082 | s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), | |
4083 | res->res[i]->ie_len, WLAN_EID_SSID); | |
4084 | s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); | |
4085 | if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || | |
4086 | os_memcmp(s1, s2, 2 + s1[1]) != 0) | |
4087 | continue; | |
4088 | ||
4089 | /* Same BSSID,SSID was already included in scan results */ | |
4090 | wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " | |
4091 | "for " MACSTR, MAC2STR(r->bssid)); | |
4092 | ||
4093 | if ((r->flags & WPA_SCAN_ASSOCIATED) && | |
4094 | !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { | |
4095 | os_free(res->res[i]); | |
4096 | res->res[i] = r; | |
4097 | } else | |
4098 | os_free(r); | |
4099 | return NL_SKIP; | |
4100 | } | |
4101 | ||
4102 | tmp = os_realloc_array(res->res, res->num + 1, | |
4103 | sizeof(struct wpa_scan_res *)); | |
4104 | if (tmp == NULL) { | |
4105 | os_free(r); | |
4106 | return NL_SKIP; | |
4107 | } | |
4108 | tmp[res->num++] = r; | |
4109 | res->res = tmp; | |
4110 | ||
4111 | return NL_SKIP; | |
4112 | } | |
4113 | ||
4114 | ||
4115 | static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, | |
4116 | const u8 *addr) | |
4117 | { | |
4118 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { | |
4119 | wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " | |
4120 | "mismatch (" MACSTR ")", MAC2STR(addr)); | |
4121 | wpa_driver_nl80211_mlme(drv, addr, | |
4122 | NL80211_CMD_DEAUTHENTICATE, | |
4123 | WLAN_REASON_PREV_AUTH_NOT_VALID, 1); | |
4124 | } | |
4125 | } | |
4126 | ||
4127 | ||
4128 | static void wpa_driver_nl80211_check_bss_status( | |
4129 | struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) | |
4130 | { | |
4131 | size_t i; | |
4132 | ||
4133 | for (i = 0; i < res->num; i++) { | |
4134 | struct wpa_scan_res *r = res->res[i]; | |
4135 | if (r->flags & WPA_SCAN_AUTHENTICATED) { | |
4136 | wpa_printf(MSG_DEBUG, "nl80211: Scan results " | |
4137 | "indicates BSS status with " MACSTR | |
4138 | " as authenticated", | |
4139 | MAC2STR(r->bssid)); | |
4140 | if (is_sta_interface(drv->nlmode) && | |
4141 | os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && | |
4142 | os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != | |
4143 | 0) { | |
4144 | wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" | |
4145 | " in local state (auth=" MACSTR | |
4146 | " assoc=" MACSTR ")", | |
4147 | MAC2STR(drv->auth_bssid), | |
4148 | MAC2STR(drv->bssid)); | |
4149 | clear_state_mismatch(drv, r->bssid); | |
4150 | } | |
4151 | } | |
4152 | ||
4153 | if (r->flags & WPA_SCAN_ASSOCIATED) { | |
4154 | wpa_printf(MSG_DEBUG, "nl80211: Scan results " | |
4155 | "indicate BSS status with " MACSTR | |
4156 | " as associated", | |
4157 | MAC2STR(r->bssid)); | |
4158 | if (is_sta_interface(drv->nlmode) && | |
4159 | !drv->associated) { | |
4160 | wpa_printf(MSG_DEBUG, "nl80211: Local state " | |
4161 | "(not associated) does not match " | |
4162 | "with BSS state"); | |
4163 | clear_state_mismatch(drv, r->bssid); | |
4164 | } else if (is_sta_interface(drv->nlmode) && | |
4165 | os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != | |
4166 | 0) { | |
4167 | wpa_printf(MSG_DEBUG, "nl80211: Local state " | |
4168 | "(associated with " MACSTR ") does " | |
4169 | "not match with BSS state", | |
4170 | MAC2STR(drv->bssid)); | |
4171 | clear_state_mismatch(drv, r->bssid); | |
4172 | clear_state_mismatch(drv, drv->bssid); | |
4173 | } | |
4174 | } | |
4175 | } | |
4176 | } | |
4177 | ||
4178 | ||
4179 | static struct wpa_scan_results * | |
4180 | nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) | |
4181 | { | |
4182 | struct nl_msg *msg; | |
4183 | struct wpa_scan_results *res; | |
4184 | int ret; | |
4185 | struct nl80211_bss_info_arg arg; | |
4186 | ||
4187 | res = os_zalloc(sizeof(*res)); | |
4188 | if (res == NULL) | |
4189 | return NULL; | |
4190 | msg = nlmsg_alloc(); | |
4191 | if (!msg) | |
4192 | goto nla_put_failure; | |
4193 | ||
4194 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); | |
4195 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4196 | ||
4197 | arg.drv = drv; | |
4198 | arg.res = res; | |
4199 | ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); | |
4200 | msg = NULL; | |
4201 | if (ret == 0) { | |
4202 | wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " | |
4203 | "BSSes)", (unsigned long) res->num); | |
4204 | nl80211_get_noise_for_scan_results(drv, res); | |
4205 | return res; | |
4206 | } | |
4207 | wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " | |
4208 | "(%s)", ret, strerror(-ret)); | |
4209 | nla_put_failure: | |
4210 | nlmsg_free(msg); | |
4211 | wpa_scan_results_free(res); | |
4212 | return NULL; | |
4213 | } | |
4214 | ||
4215 | ||
4216 | /** | |
4217 | * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results | |
4218 | * @priv: Pointer to private wext data from wpa_driver_nl80211_init() | |
4219 | * Returns: Scan results on success, -1 on failure | |
4220 | */ | |
4221 | static struct wpa_scan_results * | |
4222 | wpa_driver_nl80211_get_scan_results(void *priv) | |
4223 | { | |
4224 | struct i802_bss *bss = priv; | |
4225 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
4226 | struct wpa_scan_results *res; | |
4227 | ||
4228 | res = nl80211_get_scan_results(drv); | |
4229 | if (res) | |
4230 | wpa_driver_nl80211_check_bss_status(drv, res); | |
4231 | return res; | |
4232 | } | |
4233 | ||
4234 | ||
4235 | static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) | |
4236 | { | |
4237 | struct wpa_scan_results *res; | |
4238 | size_t i; | |
4239 | ||
4240 | res = nl80211_get_scan_results(drv); | |
4241 | if (res == NULL) { | |
4242 | wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); | |
4243 | return; | |
4244 | } | |
4245 | ||
4246 | wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); | |
4247 | for (i = 0; i < res->num; i++) { | |
4248 | struct wpa_scan_res *r = res->res[i]; | |
4249 | wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", | |
4250 | (int) i, (int) res->num, MAC2STR(r->bssid), | |
4251 | r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", | |
4252 | r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); | |
4253 | } | |
4254 | ||
4255 | wpa_scan_results_free(res); | |
4256 | } | |
4257 | ||
4258 | ||
4259 | static int wpa_driver_nl80211_set_key(const char *ifname, void *priv, | |
4260 | enum wpa_alg alg, const u8 *addr, | |
4261 | int key_idx, int set_tx, | |
4262 | const u8 *seq, size_t seq_len, | |
4263 | const u8 *key, size_t key_len) | |
4264 | { | |
4265 | struct i802_bss *bss = priv; | |
4266 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
4267 | int ifindex = if_nametoindex(ifname); | |
4268 | struct nl_msg *msg; | |
4269 | int ret; | |
4270 | ||
4271 | wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d " | |
4272 | "set_tx=%d seq_len=%lu key_len=%lu", | |
4273 | __func__, ifindex, alg, addr, key_idx, set_tx, | |
4274 | (unsigned long) seq_len, (unsigned long) key_len); | |
4275 | #ifdef CONFIG_TDLS | |
4276 | if (key_idx == -1) | |
4277 | key_idx = 0; | |
4278 | #endif /* CONFIG_TDLS */ | |
4279 | ||
4280 | msg = nlmsg_alloc(); | |
4281 | if (!msg) | |
4282 | return -ENOMEM; | |
4283 | ||
4284 | if (alg == WPA_ALG_NONE) { | |
4285 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); | |
4286 | } else { | |
4287 | nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); | |
4288 | NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); | |
4289 | switch (alg) { | |
4290 | case WPA_ALG_WEP: | |
4291 | if (key_len == 5) | |
4292 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4293 | WLAN_CIPHER_SUITE_WEP40); | |
4294 | else | |
4295 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4296 | WLAN_CIPHER_SUITE_WEP104); | |
4297 | break; | |
4298 | case WPA_ALG_TKIP: | |
4299 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4300 | WLAN_CIPHER_SUITE_TKIP); | |
4301 | break; | |
4302 | case WPA_ALG_CCMP: | |
4303 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4304 | WLAN_CIPHER_SUITE_CCMP); | |
4305 | break; | |
4306 | case WPA_ALG_GCMP: | |
4307 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4308 | WLAN_CIPHER_SUITE_GCMP); | |
4309 | break; | |
4310 | case WPA_ALG_IGTK: | |
4311 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4312 | WLAN_CIPHER_SUITE_AES_CMAC); | |
4313 | break; | |
4314 | case WPA_ALG_SMS4: | |
4315 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4316 | WLAN_CIPHER_SUITE_SMS4); | |
4317 | break; | |
4318 | case WPA_ALG_KRK: | |
4319 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
4320 | WLAN_CIPHER_SUITE_KRK); | |
4321 | break; | |
4322 | default: | |
4323 | wpa_printf(MSG_ERROR, "%s: Unsupported encryption " | |
4324 | "algorithm %d", __func__, alg); | |
4325 | nlmsg_free(msg); | |
4326 | return -1; | |
4327 | } | |
4328 | } | |
4329 | ||
4330 | if (seq && seq_len) | |
4331 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); | |
4332 | ||
4333 | if (addr && !is_broadcast_ether_addr(addr)) { | |
4334 | wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); | |
4335 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
4336 | ||
4337 | if (alg != WPA_ALG_WEP && key_idx && !set_tx) { | |
4338 | wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); | |
4339 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, | |
4340 | NL80211_KEYTYPE_GROUP); | |
4341 | } | |
4342 | } else if (addr && is_broadcast_ether_addr(addr)) { | |
4343 | struct nl_msg *types; | |
4344 | int err; | |
4345 | wpa_printf(MSG_DEBUG, " broadcast key"); | |
4346 | types = nlmsg_alloc(); | |
4347 | if (!types) | |
4348 | goto nla_put_failure; | |
4349 | NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST); | |
4350 | err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, | |
4351 | types); | |
4352 | nlmsg_free(types); | |
4353 | if (err) | |
4354 | goto nla_put_failure; | |
4355 | } | |
4356 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
4357 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
4358 | ||
4359 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4360 | if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) | |
4361 | ret = 0; | |
4362 | if (ret) | |
4363 | wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", | |
4364 | ret, strerror(-ret)); | |
4365 | ||
4366 | /* | |
4367 | * If we failed or don't need to set the default TX key (below), | |
4368 | * we're done here. | |
4369 | */ | |
4370 | if (ret || !set_tx || alg == WPA_ALG_NONE) | |
4371 | return ret; | |
4372 | if (is_ap_interface(drv->nlmode) && addr && | |
4373 | !is_broadcast_ether_addr(addr)) | |
4374 | return ret; | |
4375 | ||
4376 | msg = nlmsg_alloc(); | |
4377 | if (!msg) | |
4378 | return -ENOMEM; | |
4379 | ||
4380 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); | |
4381 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
4382 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
4383 | if (alg == WPA_ALG_IGTK) | |
4384 | NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); | |
4385 | else | |
4386 | NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); | |
4387 | if (addr && is_broadcast_ether_addr(addr)) { | |
4388 | struct nl_msg *types; | |
4389 | int err; | |
4390 | types = nlmsg_alloc(); | |
4391 | if (!types) | |
4392 | goto nla_put_failure; | |
4393 | NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST); | |
4394 | err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, | |
4395 | types); | |
4396 | nlmsg_free(types); | |
4397 | if (err) | |
4398 | goto nla_put_failure; | |
4399 | } else if (addr) { | |
4400 | struct nl_msg *types; | |
4401 | int err; | |
4402 | types = nlmsg_alloc(); | |
4403 | if (!types) | |
4404 | goto nla_put_failure; | |
4405 | NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST); | |
4406 | err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, | |
4407 | types); | |
4408 | nlmsg_free(types); | |
4409 | if (err) | |
4410 | goto nla_put_failure; | |
4411 | } | |
4412 | ||
4413 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4414 | if (ret == -ENOENT) | |
4415 | ret = 0; | |
4416 | if (ret) | |
4417 | wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " | |
4418 | "err=%d %s)", ret, strerror(-ret)); | |
4419 | return ret; | |
4420 | ||
4421 | nla_put_failure: | |
4422 | nlmsg_free(msg); | |
4423 | return -ENOBUFS; | |
4424 | } | |
4425 | ||
4426 | ||
4427 | static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, | |
4428 | int key_idx, int defkey, | |
4429 | const u8 *seq, size_t seq_len, | |
4430 | const u8 *key, size_t key_len) | |
4431 | { | |
4432 | struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); | |
4433 | if (!key_attr) | |
4434 | return -1; | |
4435 | ||
4436 | if (defkey && alg == WPA_ALG_IGTK) | |
4437 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); | |
4438 | else if (defkey) | |
4439 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
4440 | ||
4441 | NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); | |
4442 | ||
4443 | switch (alg) { | |
4444 | case WPA_ALG_WEP: | |
4445 | if (key_len == 5) | |
4446 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
4447 | WLAN_CIPHER_SUITE_WEP40); | |
4448 | else | |
4449 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
4450 | WLAN_CIPHER_SUITE_WEP104); | |
4451 | break; | |
4452 | case WPA_ALG_TKIP: | |
4453 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); | |
4454 | break; | |
4455 | case WPA_ALG_CCMP: | |
4456 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); | |
4457 | break; | |
4458 | case WPA_ALG_GCMP: | |
4459 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); | |
4460 | break; | |
4461 | case WPA_ALG_IGTK: | |
4462 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
4463 | WLAN_CIPHER_SUITE_AES_CMAC); | |
4464 | break; | |
4465 | default: | |
4466 | wpa_printf(MSG_ERROR, "%s: Unsupported encryption " | |
4467 | "algorithm %d", __func__, alg); | |
4468 | return -1; | |
4469 | } | |
4470 | ||
4471 | if (seq && seq_len) | |
4472 | NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); | |
4473 | ||
4474 | NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); | |
4475 | ||
4476 | nla_nest_end(msg, key_attr); | |
4477 | ||
4478 | return 0; | |
4479 | nla_put_failure: | |
4480 | return -1; | |
4481 | } | |
4482 | ||
4483 | ||
4484 | static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, | |
4485 | struct nl_msg *msg) | |
4486 | { | |
4487 | int i, privacy = 0; | |
4488 | struct nlattr *nl_keys, *nl_key; | |
4489 | ||
4490 | for (i = 0; i < 4; i++) { | |
4491 | if (!params->wep_key[i]) | |
4492 | continue; | |
4493 | privacy = 1; | |
4494 | break; | |
4495 | } | |
4496 | if (params->wps == WPS_MODE_PRIVACY) | |
4497 | privacy = 1; | |
4498 | if (params->pairwise_suite && | |
4499 | params->pairwise_suite != WPA_CIPHER_NONE) | |
4500 | privacy = 1; | |
4501 | ||
4502 | if (!privacy) | |
4503 | return 0; | |
4504 | ||
4505 | NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); | |
4506 | ||
4507 | nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); | |
4508 | if (!nl_keys) | |
4509 | goto nla_put_failure; | |
4510 | ||
4511 | for (i = 0; i < 4; i++) { | |
4512 | if (!params->wep_key[i]) | |
4513 | continue; | |
4514 | ||
4515 | nl_key = nla_nest_start(msg, i); | |
4516 | if (!nl_key) | |
4517 | goto nla_put_failure; | |
4518 | ||
4519 | NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], | |
4520 | params->wep_key[i]); | |
4521 | if (params->wep_key_len[i] == 5) | |
4522 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
4523 | WLAN_CIPHER_SUITE_WEP40); | |
4524 | else | |
4525 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
4526 | WLAN_CIPHER_SUITE_WEP104); | |
4527 | ||
4528 | NLA_PUT_U8(msg, NL80211_KEY_IDX, i); | |
4529 | ||
4530 | if (i == params->wep_tx_keyidx) | |
4531 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
4532 | ||
4533 | nla_nest_end(msg, nl_key); | |
4534 | } | |
4535 | nla_nest_end(msg, nl_keys); | |
4536 | ||
4537 | return 0; | |
4538 | ||
4539 | nla_put_failure: | |
4540 | return -ENOBUFS; | |
4541 | } | |
4542 | ||
4543 | ||
4544 | static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, | |
4545 | const u8 *addr, int cmd, u16 reason_code, | |
4546 | int local_state_change) | |
4547 | { | |
4548 | int ret = -1; | |
4549 | struct nl_msg *msg; | |
4550 | ||
4551 | msg = nlmsg_alloc(); | |
4552 | if (!msg) | |
4553 | return -1; | |
4554 | ||
4555 | nl80211_cmd(drv, msg, 0, cmd); | |
4556 | ||
4557 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4558 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); | |
4559 | if (addr) | |
4560 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
4561 | if (local_state_change) | |
4562 | NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); | |
4563 | ||
4564 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4565 | msg = NULL; | |
4566 | if (ret) { | |
4567 | wpa_dbg(drv->ctx, MSG_DEBUG, | |
4568 | "nl80211: MLME command failed: reason=%u ret=%d (%s)", | |
4569 | reason_code, ret, strerror(-ret)); | |
4570 | goto nla_put_failure; | |
4571 | } | |
4572 | ret = 0; | |
4573 | ||
4574 | nla_put_failure: | |
4575 | nlmsg_free(msg); | |
4576 | return ret; | |
4577 | } | |
4578 | ||
4579 | ||
4580 | static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, | |
4581 | int reason_code) | |
4582 | { | |
4583 | wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); | |
4584 | drv->associated = 0; | |
4585 | drv->ignore_next_local_disconnect = 0; | |
4586 | /* Disconnect command doesn't need BSSID - it uses cached value */ | |
4587 | return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, | |
4588 | reason_code, 0); | |
4589 | } | |
4590 | ||
4591 | ||
4592 | static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr, | |
4593 | int reason_code) | |
4594 | { | |
4595 | struct i802_bss *bss = priv; | |
4596 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
4597 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) | |
4598 | return wpa_driver_nl80211_disconnect(drv, reason_code); | |
4599 | wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", | |
4600 | __func__, MAC2STR(addr), reason_code); | |
4601 | drv->associated = 0; | |
4602 | if (drv->nlmode == NL80211_IFTYPE_ADHOC) | |
4603 | return nl80211_leave_ibss(drv); | |
4604 | return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, | |
4605 | reason_code, 0); | |
4606 | } | |
4607 | ||
4608 | ||
4609 | static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, | |
4610 | struct wpa_driver_auth_params *params) | |
4611 | { | |
4612 | int i; | |
4613 | ||
4614 | drv->auth_freq = params->freq; | |
4615 | drv->auth_alg = params->auth_alg; | |
4616 | drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; | |
4617 | drv->auth_local_state_change = params->local_state_change; | |
4618 | drv->auth_p2p = params->p2p; | |
4619 | ||
4620 | if (params->bssid) | |
4621 | os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); | |
4622 | else | |
4623 | os_memset(drv->auth_bssid_, 0, ETH_ALEN); | |
4624 | ||
4625 | if (params->ssid) { | |
4626 | os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); | |
4627 | drv->auth_ssid_len = params->ssid_len; | |
4628 | } else | |
4629 | drv->auth_ssid_len = 0; | |
4630 | ||
4631 | ||
4632 | os_free(drv->auth_ie); | |
4633 | drv->auth_ie = NULL; | |
4634 | drv->auth_ie_len = 0; | |
4635 | if (params->ie) { | |
4636 | drv->auth_ie = os_malloc(params->ie_len); | |
4637 | if (drv->auth_ie) { | |
4638 | os_memcpy(drv->auth_ie, params->ie, params->ie_len); | |
4639 | drv->auth_ie_len = params->ie_len; | |
4640 | } | |
4641 | } | |
4642 | ||
4643 | for (i = 0; i < 4; i++) { | |
4644 | if (params->wep_key[i] && params->wep_key_len[i] && | |
4645 | params->wep_key_len[i] <= 16) { | |
4646 | os_memcpy(drv->auth_wep_key[i], params->wep_key[i], | |
4647 | params->wep_key_len[i]); | |
4648 | drv->auth_wep_key_len[i] = params->wep_key_len[i]; | |
4649 | } else | |
4650 | drv->auth_wep_key_len[i] = 0; | |
4651 | } | |
4652 | } | |
4653 | ||
4654 | ||
4655 | static int wpa_driver_nl80211_authenticate( | |
4656 | void *priv, struct wpa_driver_auth_params *params) | |
4657 | { | |
4658 | struct i802_bss *bss = priv; | |
4659 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
4660 | int ret = -1, i; | |
4661 | struct nl_msg *msg; | |
4662 | enum nl80211_auth_type type; | |
4663 | enum nl80211_iftype nlmode; | |
4664 | int count = 0; | |
4665 | int is_retry; | |
4666 | ||
4667 | is_retry = drv->retry_auth; | |
4668 | drv->retry_auth = 0; | |
4669 | ||
4670 | drv->associated = 0; | |
4671 | os_memset(drv->auth_bssid, 0, ETH_ALEN); | |
4672 | /* FIX: IBSS mode */ | |
4673 | nlmode = params->p2p ? | |
4674 | NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; | |
4675 | if (drv->nlmode != nlmode && | |
4676 | wpa_driver_nl80211_set_mode(priv, nlmode) < 0) | |
4677 | return -1; | |
4678 | ||
4679 | retry: | |
4680 | msg = nlmsg_alloc(); | |
4681 | if (!msg) | |
4682 | return -1; | |
4683 | ||
4684 | wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", | |
4685 | drv->ifindex); | |
4686 | ||
4687 | nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); | |
4688 | ||
4689 | for (i = 0; i < 4; i++) { | |
4690 | if (!params->wep_key[i]) | |
4691 | continue; | |
4692 | wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP, | |
4693 | NULL, i, | |
4694 | i == params->wep_tx_keyidx, NULL, 0, | |
4695 | params->wep_key[i], | |
4696 | params->wep_key_len[i]); | |
4697 | if (params->wep_tx_keyidx != i) | |
4698 | continue; | |
4699 | if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, | |
4700 | params->wep_key[i], params->wep_key_len[i])) { | |
4701 | nlmsg_free(msg); | |
4702 | return -1; | |
4703 | } | |
4704 | } | |
4705 | ||
4706 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4707 | if (params->bssid) { | |
4708 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
4709 | MAC2STR(params->bssid)); | |
4710 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
4711 | } | |
4712 | if (params->freq) { | |
4713 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
4714 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
4715 | } | |
4716 | if (params->ssid) { | |
4717 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
4718 | params->ssid, params->ssid_len); | |
4719 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
4720 | params->ssid); | |
4721 | } | |
4722 | wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); | |
4723 | if (params->ie) | |
4724 | NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); | |
4725 | if (params->sae_data) { | |
4726 | wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, | |
4727 | params->sae_data_len); | |
4728 | NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, | |
4729 | params->sae_data); | |
4730 | } | |
4731 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) | |
4732 | type = NL80211_AUTHTYPE_OPEN_SYSTEM; | |
4733 | else if (params->auth_alg & WPA_AUTH_ALG_SHARED) | |
4734 | type = NL80211_AUTHTYPE_SHARED_KEY; | |
4735 | else if (params->auth_alg & WPA_AUTH_ALG_LEAP) | |
4736 | type = NL80211_AUTHTYPE_NETWORK_EAP; | |
4737 | else if (params->auth_alg & WPA_AUTH_ALG_FT) | |
4738 | type = NL80211_AUTHTYPE_FT; | |
4739 | else if (params->auth_alg & WPA_AUTH_ALG_SAE) | |
4740 | type = NL80211_AUTHTYPE_SAE; | |
4741 | else | |
4742 | goto nla_put_failure; | |
4743 | wpa_printf(MSG_DEBUG, " * Auth Type %d", type); | |
4744 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); | |
4745 | if (params->local_state_change) { | |
4746 | wpa_printf(MSG_DEBUG, " * Local state change only"); | |
4747 | NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); | |
4748 | } | |
4749 | ||
4750 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4751 | msg = NULL; | |
4752 | if (ret) { | |
4753 | wpa_dbg(drv->ctx, MSG_DEBUG, | |
4754 | "nl80211: MLME command failed (auth): ret=%d (%s)", | |
4755 | ret, strerror(-ret)); | |
4756 | count++; | |
4757 | if (ret == -EALREADY && count == 1 && params->bssid && | |
4758 | !params->local_state_change) { | |
4759 | /* | |
4760 | * mac80211 does not currently accept new | |
4761 | * authentication if we are already authenticated. As a | |
4762 | * workaround, force deauthentication and try again. | |
4763 | */ | |
4764 | wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " | |
4765 | "after forced deauthentication"); | |
4766 | wpa_driver_nl80211_deauthenticate( | |
4767 | bss, params->bssid, | |
4768 | WLAN_REASON_PREV_AUTH_NOT_VALID); | |
4769 | nlmsg_free(msg); | |
4770 | goto retry; | |
4771 | } | |
4772 | ||
4773 | if (ret == -ENOENT && params->freq && !is_retry) { | |
4774 | /* | |
4775 | * cfg80211 has likely expired the BSS entry even | |
4776 | * though it was previously available in our internal | |
4777 | * BSS table. To recover quickly, start a single | |
4778 | * channel scan on the specified channel. | |
4779 | */ | |
4780 | struct wpa_driver_scan_params scan; | |
4781 | int freqs[2]; | |
4782 | ||
4783 | os_memset(&scan, 0, sizeof(scan)); | |
4784 | scan.num_ssids = 1; | |
4785 | if (params->ssid) { | |
4786 | scan.ssids[0].ssid = params->ssid; | |
4787 | scan.ssids[0].ssid_len = params->ssid_len; | |
4788 | } | |
4789 | freqs[0] = params->freq; | |
4790 | freqs[1] = 0; | |
4791 | scan.freqs = freqs; | |
4792 | wpa_printf(MSG_DEBUG, "nl80211: Trigger single " | |
4793 | "channel scan to refresh cfg80211 BSS " | |
4794 | "entry"); | |
4795 | ret = wpa_driver_nl80211_scan(bss, &scan); | |
4796 | if (ret == 0) { | |
4797 | nl80211_copy_auth_params(drv, params); | |
4798 | drv->scan_for_auth = 1; | |
4799 | } | |
4800 | } else if (is_retry) { | |
4801 | /* | |
4802 | * Need to indicate this with an event since the return | |
4803 | * value from the retry is not delivered to core code. | |
4804 | */ | |
4805 | union wpa_event_data event; | |
4806 | wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " | |
4807 | "failed"); | |
4808 | os_memset(&event, 0, sizeof(event)); | |
4809 | os_memcpy(event.timeout_event.addr, drv->auth_bssid_, | |
4810 | ETH_ALEN); | |
4811 | wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, | |
4812 | &event); | |
4813 | } | |
4814 | ||
4815 | goto nla_put_failure; | |
4816 | } | |
4817 | ret = 0; | |
4818 | wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " | |
4819 | "successfully"); | |
4820 | ||
4821 | nla_put_failure: | |
4822 | nlmsg_free(msg); | |
4823 | return ret; | |
4824 | } | |
4825 | ||
4826 | ||
4827 | static int wpa_driver_nl80211_authenticate_retry( | |
4828 | struct wpa_driver_nl80211_data *drv) | |
4829 | { | |
4830 | struct wpa_driver_auth_params params; | |
4831 | struct i802_bss *bss = &drv->first_bss; | |
4832 | int i; | |
4833 | ||
4834 | wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); | |
4835 | ||
4836 | os_memset(¶ms, 0, sizeof(params)); | |
4837 | params.freq = drv->auth_freq; | |
4838 | params.auth_alg = drv->auth_alg; | |
4839 | params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; | |
4840 | params.local_state_change = drv->auth_local_state_change; | |
4841 | params.p2p = drv->auth_p2p; | |
4842 | ||
4843 | if (!is_zero_ether_addr(drv->auth_bssid_)) | |
4844 | params.bssid = drv->auth_bssid_; | |
4845 | ||
4846 | if (drv->auth_ssid_len) { | |
4847 | params.ssid = drv->auth_ssid; | |
4848 | params.ssid_len = drv->auth_ssid_len; | |
4849 | } | |
4850 | ||
4851 | params.ie = drv->auth_ie; | |
4852 | params.ie_len = drv->auth_ie_len; | |
4853 | ||
4854 | for (i = 0; i < 4; i++) { | |
4855 | if (drv->auth_wep_key_len[i]) { | |
4856 | params.wep_key[i] = drv->auth_wep_key[i]; | |
4857 | params.wep_key_len[i] = drv->auth_wep_key_len[i]; | |
4858 | } | |
4859 | } | |
4860 | ||
4861 | drv->retry_auth = 1; | |
4862 | return wpa_driver_nl80211_authenticate(bss, ¶ms); | |
4863 | } | |
4864 | ||
4865 | ||
4866 | struct phy_info_arg { | |
4867 | u16 *num_modes; | |
4868 | struct hostapd_hw_modes *modes; | |
4869 | }; | |
4870 | ||
4871 | static int phy_info_handler(struct nl_msg *msg, void *arg) | |
4872 | { | |
4873 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
4874 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
4875 | struct phy_info_arg *phy_info = arg; | |
4876 | ||
4877 | struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; | |
4878 | ||
4879 | struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; | |
4880 | static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { | |
4881 | [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, | |
4882 | [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, | |
4883 | [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, | |
4884 | [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, | |
4885 | [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, | |
4886 | [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, | |
4887 | }; | |
4888 | ||
4889 | struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; | |
4890 | static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { | |
4891 | [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, | |
4892 | [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG }, | |
4893 | }; | |
4894 | ||
4895 | struct nlattr *nl_band; | |
4896 | struct nlattr *nl_freq; | |
4897 | struct nlattr *nl_rate; | |
4898 | int rem_band, rem_freq, rem_rate; | |
4899 | struct hostapd_hw_modes *mode; | |
4900 | int idx, mode_is_set; | |
4901 | ||
4902 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
4903 | genlmsg_attrlen(gnlh, 0), NULL); | |
4904 | ||
4905 | if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) | |
4906 | return NL_SKIP; | |
4907 | ||
4908 | nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) { | |
4909 | mode = os_realloc_array(phy_info->modes, | |
4910 | *phy_info->num_modes + 1, | |
4911 | sizeof(*mode)); | |
4912 | if (!mode) | |
4913 | return NL_SKIP; | |
4914 | phy_info->modes = mode; | |
4915 | ||
4916 | mode_is_set = 0; | |
4917 | ||
4918 | mode = &phy_info->modes[*(phy_info->num_modes)]; | |
4919 | memset(mode, 0, sizeof(*mode)); | |
4920 | mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN; | |
4921 | *(phy_info->num_modes) += 1; | |
4922 | ||
4923 | nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), | |
4924 | nla_len(nl_band), NULL); | |
4925 | ||
4926 | if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) { | |
4927 | mode->ht_capab = nla_get_u16( | |
4928 | tb_band[NL80211_BAND_ATTR_HT_CAPA]); | |
4929 | } | |
4930 | ||
4931 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) { | |
4932 | mode->a_mpdu_params |= nla_get_u8( | |
4933 | tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) & | |
4934 | 0x03; | |
4935 | } | |
4936 | ||
4937 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) { | |
4938 | mode->a_mpdu_params |= nla_get_u8( | |
4939 | tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) << | |
4940 | 2; | |
4941 | } | |
4942 | ||
4943 | if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] && | |
4944 | nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) { | |
4945 | u8 *mcs; | |
4946 | mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); | |
4947 | os_memcpy(mode->mcs_set, mcs, 16); | |
4948 | } | |
4949 | ||
4950 | if (tb_band[NL80211_BAND_ATTR_VHT_CAPA]) { | |
4951 | mode->vht_capab = nla_get_u32( | |
4952 | tb_band[NL80211_BAND_ATTR_VHT_CAPA]); | |
4953 | } | |
4954 | ||
4955 | if (tb_band[NL80211_BAND_ATTR_VHT_MCS_SET] && | |
4956 | nla_len(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET])) { | |
4957 | u8 *mcs; | |
4958 | mcs = nla_data(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); | |
4959 | os_memcpy(mode->vht_mcs_set, mcs, 8); | |
4960 | } | |
4961 | ||
4962 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { | |
4963 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
4964 | nla_len(nl_freq), freq_policy); | |
4965 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
4966 | continue; | |
4967 | mode->num_channels++; | |
4968 | } | |
4969 | ||
4970 | mode->channels = os_calloc(mode->num_channels, | |
4971 | sizeof(struct hostapd_channel_data)); | |
4972 | if (!mode->channels) | |
4973 | return NL_SKIP; | |
4974 | ||
4975 | idx = 0; | |
4976 | ||
4977 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { | |
4978 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
4979 | nla_len(nl_freq), freq_policy); | |
4980 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
4981 | continue; | |
4982 | ||
4983 | mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); | |
4984 | mode->channels[idx].flag = 0; | |
4985 | ||
4986 | if (!mode_is_set) { | |
4987 | /* crude heuristic */ | |
4988 | if (mode->channels[idx].freq < 4000) | |
4989 | mode->mode = HOSTAPD_MODE_IEEE80211B; | |
4990 | else if (mode->channels[idx].freq > 50000) | |
4991 | mode->mode = HOSTAPD_MODE_IEEE80211AD; | |
4992 | else | |
4993 | mode->mode = HOSTAPD_MODE_IEEE80211A; | |
4994 | mode_is_set = 1; | |
4995 | } | |
4996 | ||
4997 | switch (mode->mode) { | |
4998 | case HOSTAPD_MODE_IEEE80211AD: | |
4999 | mode->channels[idx].chan = | |
5000 | (mode->channels[idx].freq - 56160) / | |
5001 | 2160; | |
5002 | break; | |
5003 | case HOSTAPD_MODE_IEEE80211A: | |
5004 | mode->channels[idx].chan = | |
5005 | mode->channels[idx].freq / 5 - 1000; | |
5006 | break; | |
5007 | case HOSTAPD_MODE_IEEE80211B: | |
5008 | case HOSTAPD_MODE_IEEE80211G: | |
5009 | if (mode->channels[idx].freq == 2484) | |
5010 | mode->channels[idx].chan = 14; | |
5011 | else | |
5012 | mode->channels[idx].chan = | |
5013 | (mode->channels[idx].freq - | |
5014 | 2407) / 5; | |
5015 | break; | |
5016 | default: | |
5017 | break; | |
5018 | } | |
5019 | ||
5020 | if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
5021 | mode->channels[idx].flag |= | |
5022 | HOSTAPD_CHAN_DISABLED; | |
5023 | if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) | |
5024 | mode->channels[idx].flag |= | |
5025 | HOSTAPD_CHAN_PASSIVE_SCAN; | |
5026 | if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) | |
5027 | mode->channels[idx].flag |= | |
5028 | HOSTAPD_CHAN_NO_IBSS; | |
5029 | if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) | |
5030 | mode->channels[idx].flag |= | |
5031 | HOSTAPD_CHAN_RADAR; | |
5032 | ||
5033 | if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && | |
5034 | !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
5035 | mode->channels[idx].max_tx_power = | |
5036 | nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; | |
5037 | ||
5038 | idx++; | |
5039 | } | |
5040 | ||
5041 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
5042 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
5043 | nla_len(nl_rate), rate_policy); | |
5044 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
5045 | continue; | |
5046 | mode->num_rates++; | |
5047 | } | |
5048 | ||
5049 | mode->rates = os_calloc(mode->num_rates, sizeof(int)); | |
5050 | if (!mode->rates) | |
5051 | return NL_SKIP; | |
5052 | ||
5053 | idx = 0; | |
5054 | ||
5055 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
5056 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
5057 | nla_len(nl_rate), rate_policy); | |
5058 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
5059 | continue; | |
5060 | mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]); | |
5061 | ||
5062 | /* crude heuristic */ | |
5063 | if (mode->mode == HOSTAPD_MODE_IEEE80211B && | |
5064 | mode->rates[idx] > 200) | |
5065 | mode->mode = HOSTAPD_MODE_IEEE80211G; | |
5066 | ||
5067 | idx++; | |
5068 | } | |
5069 | } | |
5070 | ||
5071 | return NL_SKIP; | |
5072 | } | |
5073 | ||
5074 | static struct hostapd_hw_modes * | |
5075 | wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes) | |
5076 | { | |
5077 | u16 m; | |
5078 | struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; | |
5079 | int i, mode11g_idx = -1; | |
5080 | ||
5081 | /* If only 802.11g mode is included, use it to construct matching | |
5082 | * 802.11b mode data. */ | |
5083 | ||
5084 | for (m = 0; m < *num_modes; m++) { | |
5085 | if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) | |
5086 | return modes; /* 802.11b already included */ | |
5087 | if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) | |
5088 | mode11g_idx = m; | |
5089 | } | |
5090 | ||
5091 | if (mode11g_idx < 0) | |
5092 | return modes; /* 2.4 GHz band not supported at all */ | |
5093 | ||
5094 | nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); | |
5095 | if (nmodes == NULL) | |
5096 | return modes; /* Could not add 802.11b mode */ | |
5097 | ||
5098 | mode = &nmodes[*num_modes]; | |
5099 | os_memset(mode, 0, sizeof(*mode)); | |
5100 | (*num_modes)++; | |
5101 | modes = nmodes; | |
5102 | ||
5103 | mode->mode = HOSTAPD_MODE_IEEE80211B; | |
5104 | ||
5105 | mode11g = &modes[mode11g_idx]; | |
5106 | mode->num_channels = mode11g->num_channels; | |
5107 | mode->channels = os_malloc(mode11g->num_channels * | |
5108 | sizeof(struct hostapd_channel_data)); | |
5109 | if (mode->channels == NULL) { | |
5110 | (*num_modes)--; | |
5111 | return modes; /* Could not add 802.11b mode */ | |
5112 | } | |
5113 | os_memcpy(mode->channels, mode11g->channels, | |
5114 | mode11g->num_channels * sizeof(struct hostapd_channel_data)); | |
5115 | ||
5116 | mode->num_rates = 0; | |
5117 | mode->rates = os_malloc(4 * sizeof(int)); | |
5118 | if (mode->rates == NULL) { | |
5119 | os_free(mode->channels); | |
5120 | (*num_modes)--; | |
5121 | return modes; /* Could not add 802.11b mode */ | |
5122 | } | |
5123 | ||
5124 | for (i = 0; i < mode11g->num_rates; i++) { | |
5125 | if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && | |
5126 | mode11g->rates[i] != 55 && mode11g->rates[i] != 110) | |
5127 | continue; | |
5128 | mode->rates[mode->num_rates] = mode11g->rates[i]; | |
5129 | mode->num_rates++; | |
5130 | if (mode->num_rates == 4) | |
5131 | break; | |
5132 | } | |
5133 | ||
5134 | if (mode->num_rates == 0) { | |
5135 | os_free(mode->channels); | |
5136 | os_free(mode->rates); | |
5137 | (*num_modes)--; | |
5138 | return modes; /* No 802.11b rates */ | |
5139 | } | |
5140 | ||
5141 | wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " | |
5142 | "information"); | |
5143 | ||
5144 | return modes; | |
5145 | } | |
5146 | ||
5147 | ||
5148 | static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, | |
5149 | int end) | |
5150 | { | |
5151 | int c; | |
5152 | ||
5153 | for (c = 0; c < mode->num_channels; c++) { | |
5154 | struct hostapd_channel_data *chan = &mode->channels[c]; | |
5155 | if (chan->freq - 10 >= start && chan->freq + 10 <= end) | |
5156 | chan->flag |= HOSTAPD_CHAN_HT40; | |
5157 | } | |
5158 | } | |
5159 | ||
5160 | ||
5161 | static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, | |
5162 | int end) | |
5163 | { | |
5164 | int c; | |
5165 | ||
5166 | for (c = 0; c < mode->num_channels; c++) { | |
5167 | struct hostapd_channel_data *chan = &mode->channels[c]; | |
5168 | if (!(chan->flag & HOSTAPD_CHAN_HT40)) | |
5169 | continue; | |
5170 | if (chan->freq - 30 >= start && chan->freq - 10 <= end) | |
5171 | chan->flag |= HOSTAPD_CHAN_HT40MINUS; | |
5172 | if (chan->freq + 10 >= start && chan->freq + 30 <= end) | |
5173 | chan->flag |= HOSTAPD_CHAN_HT40PLUS; | |
5174 | } | |
5175 | } | |
5176 | ||
5177 | ||
5178 | static void nl80211_reg_rule_ht40(struct nlattr *tb[], | |
5179 | struct phy_info_arg *results) | |
5180 | { | |
5181 | u32 start, end, max_bw; | |
5182 | u16 m; | |
5183 | ||
5184 | if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || | |
5185 | tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || | |
5186 | tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) | |
5187 | return; | |
5188 | ||
5189 | start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; | |
5190 | end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; | |
5191 | max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; | |
5192 | ||
5193 | wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", | |
5194 | start, end, max_bw); | |
5195 | if (max_bw < 40) | |
5196 | return; | |
5197 | ||
5198 | for (m = 0; m < *results->num_modes; m++) { | |
5199 | if (!(results->modes[m].ht_capab & | |
5200 | HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) | |
5201 | continue; | |
5202 | nl80211_set_ht40_mode(&results->modes[m], start, end); | |
5203 | } | |
5204 | } | |
5205 | ||
5206 | ||
5207 | static void nl80211_reg_rule_sec(struct nlattr *tb[], | |
5208 | struct phy_info_arg *results) | |
5209 | { | |
5210 | u32 start, end, max_bw; | |
5211 | u16 m; | |
5212 | ||
5213 | if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || | |
5214 | tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || | |
5215 | tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) | |
5216 | return; | |
5217 | ||
5218 | start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; | |
5219 | end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; | |
5220 | max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; | |
5221 | ||
5222 | if (max_bw < 20) | |
5223 | return; | |
5224 | ||
5225 | for (m = 0; m < *results->num_modes; m++) { | |
5226 | if (!(results->modes[m].ht_capab & | |
5227 | HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) | |
5228 | continue; | |
5229 | nl80211_set_ht40_mode_sec(&results->modes[m], start, end); | |
5230 | } | |
5231 | } | |
5232 | ||
5233 | ||
5234 | static int nl80211_get_reg(struct nl_msg *msg, void *arg) | |
5235 | { | |
5236 | struct phy_info_arg *results = arg; | |
5237 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
5238 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
5239 | struct nlattr *nl_rule; | |
5240 | struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; | |
5241 | int rem_rule; | |
5242 | static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { | |
5243 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
5244 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
5245 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
5246 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
5247 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
5248 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
5249 | }; | |
5250 | ||
5251 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
5252 | genlmsg_attrlen(gnlh, 0), NULL); | |
5253 | if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || | |
5254 | !tb_msg[NL80211_ATTR_REG_RULES]) { | |
5255 | wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " | |
5256 | "available"); | |
5257 | return NL_SKIP; | |
5258 | } | |
5259 | ||
5260 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", | |
5261 | (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); | |
5262 | ||
5263 | nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) | |
5264 | { | |
5265 | nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, | |
5266 | nla_data(nl_rule), nla_len(nl_rule), reg_policy); | |
5267 | nl80211_reg_rule_ht40(tb_rule, results); | |
5268 | } | |
5269 | ||
5270 | nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) | |
5271 | { | |
5272 | nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, | |
5273 | nla_data(nl_rule), nla_len(nl_rule), reg_policy); | |
5274 | nl80211_reg_rule_sec(tb_rule, results); | |
5275 | } | |
5276 | ||
5277 | return NL_SKIP; | |
5278 | } | |
5279 | ||
5280 | ||
5281 | static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, | |
5282 | struct phy_info_arg *results) | |
5283 | { | |
5284 | struct nl_msg *msg; | |
5285 | ||
5286 | msg = nlmsg_alloc(); | |
5287 | if (!msg) | |
5288 | return -ENOMEM; | |
5289 | ||
5290 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); | |
5291 | return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); | |
5292 | } | |
5293 | ||
5294 | ||
5295 | static struct hostapd_hw_modes * | |
5296 | wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) | |
5297 | { | |
5298 | struct i802_bss *bss = priv; | |
5299 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5300 | struct nl_msg *msg; | |
5301 | struct phy_info_arg result = { | |
5302 | .num_modes = num_modes, | |
5303 | .modes = NULL, | |
5304 | }; | |
5305 | ||
5306 | *num_modes = 0; | |
5307 | *flags = 0; | |
5308 | ||
5309 | msg = nlmsg_alloc(); | |
5310 | if (!msg) | |
5311 | return NULL; | |
5312 | ||
5313 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); | |
5314 | ||
5315 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5316 | ||
5317 | if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { | |
5318 | nl80211_set_ht40_flags(drv, &result); | |
5319 | return wpa_driver_nl80211_add_11b(result.modes, num_modes); | |
5320 | } | |
5321 | msg = NULL; | |
5322 | nla_put_failure: | |
5323 | nlmsg_free(msg); | |
5324 | return NULL; | |
5325 | } | |
5326 | ||
5327 | ||
5328 | static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, | |
5329 | const void *data, size_t len, | |
5330 | int encrypt, int noack) | |
5331 | { | |
5332 | __u8 rtap_hdr[] = { | |
5333 | 0x00, 0x00, /* radiotap version */ | |
5334 | 0x0e, 0x00, /* radiotap length */ | |
5335 | 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ | |
5336 | IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ | |
5337 | 0x00, /* padding */ | |
5338 | 0x00, 0x00, /* RX and TX flags to indicate that */ | |
5339 | 0x00, 0x00, /* this is the injected frame directly */ | |
5340 | }; | |
5341 | struct iovec iov[2] = { | |
5342 | { | |
5343 | .iov_base = &rtap_hdr, | |
5344 | .iov_len = sizeof(rtap_hdr), | |
5345 | }, | |
5346 | { | |
5347 | .iov_base = (void *) data, | |
5348 | .iov_len = len, | |
5349 | } | |
5350 | }; | |
5351 | struct msghdr msg = { | |
5352 | .msg_name = NULL, | |
5353 | .msg_namelen = 0, | |
5354 | .msg_iov = iov, | |
5355 | .msg_iovlen = 2, | |
5356 | .msg_control = NULL, | |
5357 | .msg_controllen = 0, | |
5358 | .msg_flags = 0, | |
5359 | }; | |
5360 | int res; | |
5361 | u16 txflags = 0; | |
5362 | ||
5363 | if (encrypt) | |
5364 | rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; | |
5365 | ||
5366 | if (drv->monitor_sock < 0) { | |
5367 | wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " | |
5368 | "for %s", __func__); | |
5369 | return -1; | |
5370 | } | |
5371 | ||
5372 | if (noack) | |
5373 | txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; | |
5374 | WPA_PUT_LE16(&rtap_hdr[12], txflags); | |
5375 | ||
5376 | res = sendmsg(drv->monitor_sock, &msg, 0); | |
5377 | if (res < 0) { | |
5378 | wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); | |
5379 | return -1; | |
5380 | } | |
5381 | return 0; | |
5382 | } | |
5383 | ||
5384 | ||
5385 | static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, | |
5386 | const void *data, size_t len, | |
5387 | int encrypt, int noack, | |
5388 | unsigned int freq, int no_cck, | |
5389 | int offchanok, unsigned int wait_time) | |
5390 | { | |
5391 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5392 | u64 cookie; | |
5393 | ||
5394 | if (freq == 0) | |
5395 | freq = bss->freq; | |
5396 | ||
5397 | if (drv->use_monitor) | |
5398 | return wpa_driver_nl80211_send_mntr(drv, data, len, | |
5399 | encrypt, noack); | |
5400 | ||
5401 | return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, | |
5402 | &cookie, no_cck, noack, offchanok); | |
5403 | } | |
5404 | ||
5405 | ||
5406 | static int wpa_driver_nl80211_send_mlme_freq(struct i802_bss *bss, | |
5407 | const u8 *data, | |
5408 | size_t data_len, int noack, | |
5409 | unsigned int freq, int no_cck, | |
5410 | int offchanok, | |
5411 | unsigned int wait_time) | |
5412 | { | |
5413 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5414 | struct ieee80211_mgmt *mgmt; | |
5415 | int encrypt = 1; | |
5416 | u16 fc; | |
5417 | ||
5418 | mgmt = (struct ieee80211_mgmt *) data; | |
5419 | fc = le_to_host16(mgmt->frame_control); | |
5420 | ||
5421 | if (is_sta_interface(drv->nlmode) && | |
5422 | WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && | |
5423 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { | |
5424 | /* | |
5425 | * The use of last_mgmt_freq is a bit of a hack, | |
5426 | * but it works due to the single-threaded nature | |
5427 | * of wpa_supplicant. | |
5428 | */ | |
5429 | if (freq == 0) | |
5430 | freq = drv->last_mgmt_freq; | |
5431 | return nl80211_send_frame_cmd(bss, freq, 0, | |
5432 | data, data_len, NULL, 1, noack, | |
5433 | 1); | |
5434 | } | |
5435 | ||
5436 | if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { | |
5437 | if (freq == 0) | |
5438 | freq = bss->freq; | |
5439 | return nl80211_send_frame_cmd(bss, freq, | |
5440 | (int) freq == bss->freq ? 0 : | |
5441 | wait_time, | |
5442 | data, data_len, | |
5443 | &drv->send_action_cookie, | |
5444 | no_cck, noack, offchanok); | |
5445 | } | |
5446 | ||
5447 | if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && | |
5448 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { | |
5449 | /* | |
5450 | * Only one of the authentication frame types is encrypted. | |
5451 | * In order for static WEP encryption to work properly (i.e., | |
5452 | * to not encrypt the frame), we need to tell mac80211 about | |
5453 | * the frames that must not be encrypted. | |
5454 | */ | |
5455 | u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
5456 | u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); | |
5457 | if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) | |
5458 | encrypt = 0; | |
5459 | } | |
5460 | ||
5461 | return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, | |
5462 | noack, freq, no_cck, offchanok, | |
5463 | wait_time); | |
5464 | } | |
5465 | ||
5466 | ||
5467 | static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data, | |
5468 | size_t data_len, int noack) | |
5469 | { | |
5470 | struct i802_bss *bss = priv; | |
5471 | return wpa_driver_nl80211_send_mlme_freq(bss, data, data_len, noack, | |
5472 | 0, 0, 0, 0); | |
5473 | } | |
5474 | ||
5475 | ||
5476 | static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, | |
5477 | int slot, int ht_opmode, int ap_isolate, | |
5478 | int *basic_rates) | |
5479 | { | |
5480 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5481 | struct nl_msg *msg; | |
5482 | ||
5483 | msg = nlmsg_alloc(); | |
5484 | if (!msg) | |
5485 | return -ENOMEM; | |
5486 | ||
5487 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); | |
5488 | ||
5489 | if (cts >= 0) | |
5490 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); | |
5491 | if (preamble >= 0) | |
5492 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); | |
5493 | if (slot >= 0) | |
5494 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); | |
5495 | if (ht_opmode >= 0) | |
5496 | NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); | |
5497 | if (ap_isolate >= 0) | |
5498 | NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); | |
5499 | ||
5500 | if (basic_rates) { | |
5501 | u8 rates[NL80211_MAX_SUPP_RATES]; | |
5502 | u8 rates_len = 0; | |
5503 | int i; | |
5504 | ||
5505 | for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; | |
5506 | i++) | |
5507 | rates[rates_len++] = basic_rates[i] / 5; | |
5508 | ||
5509 | NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); | |
5510 | } | |
5511 | ||
5512 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
5513 | ||
5514 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
5515 | nla_put_failure: | |
5516 | nlmsg_free(msg); | |
5517 | return -ENOBUFS; | |
5518 | } | |
5519 | ||
5520 | ||
5521 | static int wpa_driver_nl80211_set_ap(void *priv, | |
5522 | struct wpa_driver_ap_params *params) | |
5523 | { | |
5524 | struct i802_bss *bss = priv; | |
5525 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5526 | struct nl_msg *msg; | |
5527 | u8 cmd = NL80211_CMD_NEW_BEACON; | |
5528 | int ret; | |
5529 | int beacon_set; | |
5530 | int ifindex = if_nametoindex(bss->ifname); | |
5531 | int num_suites; | |
5532 | u32 suites[10]; | |
5533 | u32 ver; | |
5534 | ||
5535 | beacon_set = bss->beacon_set; | |
5536 | ||
5537 | msg = nlmsg_alloc(); | |
5538 | if (!msg) | |
5539 | return -ENOMEM; | |
5540 | ||
5541 | wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", | |
5542 | beacon_set); | |
5543 | if (beacon_set) | |
5544 | cmd = NL80211_CMD_SET_BEACON; | |
5545 | ||
5546 | nl80211_cmd(drv, msg, 0, cmd); | |
5547 | NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); | |
5548 | NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); | |
5549 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
5550 | NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); | |
5551 | NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); | |
5552 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
5553 | params->ssid); | |
5554 | if (params->proberesp && params->proberesp_len) | |
5555 | NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, | |
5556 | params->proberesp); | |
5557 | switch (params->hide_ssid) { | |
5558 | case NO_SSID_HIDING: | |
5559 | NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, | |
5560 | NL80211_HIDDEN_SSID_NOT_IN_USE); | |
5561 | break; | |
5562 | case HIDDEN_SSID_ZERO_LEN: | |
5563 | NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, | |
5564 | NL80211_HIDDEN_SSID_ZERO_LEN); | |
5565 | break; | |
5566 | case HIDDEN_SSID_ZERO_CONTENTS: | |
5567 | NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, | |
5568 | NL80211_HIDDEN_SSID_ZERO_CONTENTS); | |
5569 | break; | |
5570 | } | |
5571 | if (params->privacy) | |
5572 | NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); | |
5573 | if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == | |
5574 | (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { | |
5575 | /* Leave out the attribute */ | |
5576 | } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) | |
5577 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, | |
5578 | NL80211_AUTHTYPE_SHARED_KEY); | |
5579 | else | |
5580 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, | |
5581 | NL80211_AUTHTYPE_OPEN_SYSTEM); | |
5582 | ||
5583 | ver = 0; | |
5584 | if (params->wpa_version & WPA_PROTO_WPA) | |
5585 | ver |= NL80211_WPA_VERSION_1; | |
5586 | if (params->wpa_version & WPA_PROTO_RSN) | |
5587 | ver |= NL80211_WPA_VERSION_2; | |
5588 | if (ver) | |
5589 | NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); | |
5590 | ||
5591 | num_suites = 0; | |
5592 | if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) | |
5593 | suites[num_suites++] = WLAN_AKM_SUITE_8021X; | |
5594 | if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) | |
5595 | suites[num_suites++] = WLAN_AKM_SUITE_PSK; | |
5596 | if (num_suites) { | |
5597 | NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, | |
5598 | num_suites * sizeof(u32), suites); | |
5599 | } | |
5600 | ||
5601 | if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && | |
5602 | params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) | |
5603 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); | |
5604 | ||
5605 | num_suites = 0; | |
5606 | if (params->pairwise_ciphers & WPA_CIPHER_CCMP) | |
5607 | suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; | |
5608 | if (params->pairwise_ciphers & WPA_CIPHER_GCMP) | |
5609 | suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; | |
5610 | if (params->pairwise_ciphers & WPA_CIPHER_TKIP) | |
5611 | suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; | |
5612 | if (params->pairwise_ciphers & WPA_CIPHER_WEP104) | |
5613 | suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; | |
5614 | if (params->pairwise_ciphers & WPA_CIPHER_WEP40) | |
5615 | suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; | |
5616 | if (num_suites) { | |
5617 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, | |
5618 | num_suites * sizeof(u32), suites); | |
5619 | } | |
5620 | ||
5621 | switch (params->group_cipher) { | |
5622 | case WPA_CIPHER_CCMP: | |
5623 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
5624 | WLAN_CIPHER_SUITE_CCMP); | |
5625 | break; | |
5626 | case WPA_CIPHER_GCMP: | |
5627 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
5628 | WLAN_CIPHER_SUITE_GCMP); | |
5629 | break; | |
5630 | case WPA_CIPHER_TKIP: | |
5631 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
5632 | WLAN_CIPHER_SUITE_TKIP); | |
5633 | break; | |
5634 | case WPA_CIPHER_WEP104: | |
5635 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
5636 | WLAN_CIPHER_SUITE_WEP104); | |
5637 | break; | |
5638 | case WPA_CIPHER_WEP40: | |
5639 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
5640 | WLAN_CIPHER_SUITE_WEP40); | |
5641 | break; | |
5642 | } | |
5643 | ||
5644 | if (params->beacon_ies) { | |
5645 | NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), | |
5646 | wpabuf_head(params->beacon_ies)); | |
5647 | } | |
5648 | if (params->proberesp_ies) { | |
5649 | NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, | |
5650 | wpabuf_len(params->proberesp_ies), | |
5651 | wpabuf_head(params->proberesp_ies)); | |
5652 | } | |
5653 | if (params->assocresp_ies) { | |
5654 | NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, | |
5655 | wpabuf_len(params->assocresp_ies), | |
5656 | wpabuf_head(params->assocresp_ies)); | |
5657 | } | |
5658 | ||
5659 | if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { | |
5660 | NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, | |
5661 | params->ap_max_inactivity); | |
5662 | } | |
5663 | ||
5664 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5665 | if (ret) { | |
5666 | wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", | |
5667 | ret, strerror(-ret)); | |
5668 | } else { | |
5669 | bss->beacon_set = 1; | |
5670 | nl80211_set_bss(bss, params->cts_protect, params->preamble, | |
5671 | params->short_slot_time, params->ht_opmode, | |
5672 | params->isolate, params->basic_rates); | |
5673 | } | |
5674 | return ret; | |
5675 | nla_put_failure: | |
5676 | nlmsg_free(msg); | |
5677 | return -ENOBUFS; | |
5678 | } | |
5679 | ||
5680 | ||
5681 | static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, | |
5682 | struct hostapd_freq_params *freq) | |
5683 | { | |
5684 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5685 | struct nl_msg *msg; | |
5686 | int ret; | |
5687 | ||
5688 | wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," | |
5689 | " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", | |
5690 | freq->freq, freq->ht_enabled, freq->vht_enabled, | |
5691 | freq->bandwidth, freq->center_freq1, freq->center_freq2); | |
5692 | msg = nlmsg_alloc(); | |
5693 | if (!msg) | |
5694 | return -1; | |
5695 | ||
5696 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); | |
5697 | ||
5698 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5699 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); | |
5700 | if (freq->vht_enabled) { | |
5701 | switch (freq->bandwidth) { | |
5702 | case 20: | |
5703 | NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, | |
5704 | NL80211_CHAN_WIDTH_20); | |
5705 | break; | |
5706 | case 40: | |
5707 | NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, | |
5708 | NL80211_CHAN_WIDTH_40); | |
5709 | break; | |
5710 | case 80: | |
5711 | if (freq->center_freq2) | |
5712 | NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, | |
5713 | NL80211_CHAN_WIDTH_80P80); | |
5714 | else | |
5715 | NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, | |
5716 | NL80211_CHAN_WIDTH_80); | |
5717 | break; | |
5718 | case 160: | |
5719 | NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, | |
5720 | NL80211_CHAN_WIDTH_160); | |
5721 | break; | |
5722 | default: | |
5723 | return -1; | |
5724 | } | |
5725 | NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); | |
5726 | if (freq->center_freq2) | |
5727 | NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, | |
5728 | freq->center_freq2); | |
5729 | } else if (freq->ht_enabled) { | |
5730 | switch (freq->sec_channel_offset) { | |
5731 | case -1: | |
5732 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
5733 | NL80211_CHAN_HT40MINUS); | |
5734 | break; | |
5735 | case 1: | |
5736 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
5737 | NL80211_CHAN_HT40PLUS); | |
5738 | break; | |
5739 | default: | |
5740 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
5741 | NL80211_CHAN_HT20); | |
5742 | break; | |
5743 | } | |
5744 | } | |
5745 | ||
5746 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5747 | msg = NULL; | |
5748 | if (ret == 0) { | |
5749 | bss->freq = freq->freq; | |
5750 | return 0; | |
5751 | } | |
5752 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " | |
5753 | "%d (%s)", freq->freq, ret, strerror(-ret)); | |
5754 | nla_put_failure: | |
5755 | nlmsg_free(msg); | |
5756 | return -1; | |
5757 | } | |
5758 | ||
5759 | ||
5760 | static u32 sta_flags_nl80211(int flags) | |
5761 | { | |
5762 | u32 f = 0; | |
5763 | ||
5764 | if (flags & WPA_STA_AUTHORIZED) | |
5765 | f |= BIT(NL80211_STA_FLAG_AUTHORIZED); | |
5766 | if (flags & WPA_STA_WMM) | |
5767 | f |= BIT(NL80211_STA_FLAG_WME); | |
5768 | if (flags & WPA_STA_SHORT_PREAMBLE) | |
5769 | f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); | |
5770 | if (flags & WPA_STA_MFP) | |
5771 | f |= BIT(NL80211_STA_FLAG_MFP); | |
5772 | if (flags & WPA_STA_TDLS_PEER) | |
5773 | f |= BIT(NL80211_STA_FLAG_TDLS_PEER); | |
5774 | ||
5775 | return f; | |
5776 | } | |
5777 | ||
5778 | ||
5779 | static int wpa_driver_nl80211_sta_add(void *priv, | |
5780 | struct hostapd_sta_add_params *params) | |
5781 | { | |
5782 | struct i802_bss *bss = priv; | |
5783 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5784 | struct nl_msg *msg, *wme = NULL; | |
5785 | struct nl80211_sta_flag_update upd; | |
5786 | int ret = -ENOBUFS; | |
5787 | ||
5788 | if ((params->flags & WPA_STA_TDLS_PEER) && | |
5789 | !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) | |
5790 | return -EOPNOTSUPP; | |
5791 | ||
5792 | msg = nlmsg_alloc(); | |
5793 | if (!msg) | |
5794 | return -ENOMEM; | |
5795 | ||
5796 | nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : | |
5797 | NL80211_CMD_NEW_STATION); | |
5798 | ||
5799 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
5800 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); | |
5801 | NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, | |
5802 | params->supp_rates); | |
5803 | if (!params->set) { | |
5804 | NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); | |
5805 | NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, | |
5806 | params->listen_interval); | |
5807 | } | |
5808 | if (params->ht_capabilities) { | |
5809 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, | |
5810 | sizeof(*params->ht_capabilities), | |
5811 | params->ht_capabilities); | |
5812 | } | |
5813 | ||
5814 | if (params->vht_capabilities) { | |
5815 | NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, | |
5816 | sizeof(*params->vht_capabilities), | |
5817 | params->vht_capabilities); | |
5818 | } | |
5819 | ||
5820 | os_memset(&upd, 0, sizeof(upd)); | |
5821 | upd.mask = sta_flags_nl80211(params->flags); | |
5822 | upd.set = upd.mask; | |
5823 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
5824 | ||
5825 | if (params->flags & WPA_STA_WMM) { | |
5826 | wme = nlmsg_alloc(); | |
5827 | if (!wme) | |
5828 | goto nla_put_failure; | |
5829 | ||
5830 | NLA_PUT_U8(wme, NL80211_STA_WME_UAPSD_QUEUES, | |
5831 | params->qosinfo & WMM_QOSINFO_STA_AC_MASK); | |
5832 | NLA_PUT_U8(wme, NL80211_STA_WME_MAX_SP, | |
5833 | (params->qosinfo > WMM_QOSINFO_STA_SP_SHIFT) & | |
5834 | WMM_QOSINFO_STA_SP_MASK); | |
5835 | if (nla_put_nested(msg, NL80211_ATTR_STA_WME, wme) < 0) | |
5836 | goto nla_put_failure; | |
5837 | } | |
5838 | ||
5839 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5840 | msg = NULL; | |
5841 | if (ret) | |
5842 | wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " | |
5843 | "result: %d (%s)", params->set ? "SET" : "NEW", ret, | |
5844 | strerror(-ret)); | |
5845 | if (ret == -EEXIST) | |
5846 | ret = 0; | |
5847 | nla_put_failure: | |
5848 | nlmsg_free(wme); | |
5849 | nlmsg_free(msg); | |
5850 | return ret; | |
5851 | } | |
5852 | ||
5853 | ||
5854 | static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr) | |
5855 | { | |
5856 | struct i802_bss *bss = priv; | |
5857 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5858 | struct nl_msg *msg; | |
5859 | int ret; | |
5860 | ||
5861 | msg = nlmsg_alloc(); | |
5862 | if (!msg) | |
5863 | return -ENOMEM; | |
5864 | ||
5865 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); | |
5866 | ||
5867 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
5868 | if_nametoindex(bss->ifname)); | |
5869 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5870 | ||
5871 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5872 | if (ret == -ENOENT) | |
5873 | return 0; | |
5874 | return ret; | |
5875 | nla_put_failure: | |
5876 | nlmsg_free(msg); | |
5877 | return -ENOBUFS; | |
5878 | } | |
5879 | ||
5880 | ||
5881 | static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, | |
5882 | int ifidx) | |
5883 | { | |
5884 | struct nl_msg *msg; | |
5885 | ||
5886 | wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); | |
5887 | ||
5888 | /* stop listening for EAPOL on this interface */ | |
5889 | del_ifidx(drv, ifidx); | |
5890 | ||
5891 | msg = nlmsg_alloc(); | |
5892 | if (!msg) | |
5893 | goto nla_put_failure; | |
5894 | ||
5895 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); | |
5896 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); | |
5897 | ||
5898 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
5899 | return; | |
5900 | msg = NULL; | |
5901 | nla_put_failure: | |
5902 | nlmsg_free(msg); | |
5903 | wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); | |
5904 | } | |
5905 | ||
5906 | ||
5907 | static const char * nl80211_iftype_str(enum nl80211_iftype mode) | |
5908 | { | |
5909 | switch (mode) { | |
5910 | case NL80211_IFTYPE_ADHOC: | |
5911 | return "ADHOC"; | |
5912 | case NL80211_IFTYPE_STATION: | |
5913 | return "STATION"; | |
5914 | case NL80211_IFTYPE_AP: | |
5915 | return "AP"; | |
5916 | case NL80211_IFTYPE_MONITOR: | |
5917 | return "MONITOR"; | |
5918 | case NL80211_IFTYPE_P2P_CLIENT: | |
5919 | return "P2P_CLIENT"; | |
5920 | case NL80211_IFTYPE_P2P_GO: | |
5921 | return "P2P_GO"; | |
5922 | default: | |
5923 | return "unknown"; | |
5924 | } | |
5925 | } | |
5926 | ||
5927 | ||
5928 | static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, | |
5929 | const char *ifname, | |
5930 | enum nl80211_iftype iftype, | |
5931 | const u8 *addr, int wds) | |
5932 | { | |
5933 | struct nl_msg *msg, *flags = NULL; | |
5934 | int ifidx; | |
5935 | int ret = -ENOBUFS; | |
5936 | ||
5937 | wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", | |
5938 | iftype, nl80211_iftype_str(iftype)); | |
5939 | ||
5940 | msg = nlmsg_alloc(); | |
5941 | if (!msg) | |
5942 | return -1; | |
5943 | ||
5944 | nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); | |
5945 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5946 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); | |
5947 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); | |
5948 | ||
5949 | if (iftype == NL80211_IFTYPE_MONITOR) { | |
5950 | int err; | |
5951 | ||
5952 | flags = nlmsg_alloc(); | |
5953 | if (!flags) | |
5954 | goto nla_put_failure; | |
5955 | ||
5956 | NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES); | |
5957 | ||
5958 | err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags); | |
5959 | ||
5960 | nlmsg_free(flags); | |
5961 | ||
5962 | if (err) | |
5963 | goto nla_put_failure; | |
5964 | } else if (wds) { | |
5965 | NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); | |
5966 | } | |
5967 | ||
5968 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5969 | msg = NULL; | |
5970 | if (ret) { | |
5971 | nla_put_failure: | |
5972 | nlmsg_free(msg); | |
5973 | wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", | |
5974 | ifname, ret, strerror(-ret)); | |
5975 | return ret; | |
5976 | } | |
5977 | ||
5978 | ifidx = if_nametoindex(ifname); | |
5979 | wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", | |
5980 | ifname, ifidx); | |
5981 | ||
5982 | if (ifidx <= 0) | |
5983 | return -1; | |
5984 | ||
5985 | /* start listening for EAPOL on this interface */ | |
5986 | add_ifidx(drv, ifidx); | |
5987 | ||
5988 | if (addr && iftype != NL80211_IFTYPE_MONITOR && | |
5989 | linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { | |
5990 | nl80211_remove_iface(drv, ifidx); | |
5991 | return -1; | |
5992 | } | |
5993 | ||
5994 | return ifidx; | |
5995 | } | |
5996 | ||
5997 | ||
5998 | static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, | |
5999 | const char *ifname, enum nl80211_iftype iftype, | |
6000 | const u8 *addr, int wds) | |
6001 | { | |
6002 | int ret; | |
6003 | ||
6004 | ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds); | |
6005 | ||
6006 | /* if error occurred and interface exists already */ | |
6007 | if (ret == -ENFILE && if_nametoindex(ifname)) { | |
6008 | wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); | |
6009 | ||
6010 | /* Try to remove the interface that was already there. */ | |
6011 | nl80211_remove_iface(drv, if_nametoindex(ifname)); | |
6012 | ||
6013 | /* Try to create the interface again */ | |
6014 | ret = nl80211_create_iface_once(drv, ifname, iftype, addr, | |
6015 | wds); | |
6016 | } | |
6017 | ||
6018 | if (ret >= 0 && is_p2p_interface(iftype)) | |
6019 | nl80211_disable_11b_rates(drv, ret, 1); | |
6020 | ||
6021 | return ret; | |
6022 | } | |
6023 | ||
6024 | ||
6025 | static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) | |
6026 | { | |
6027 | struct ieee80211_hdr *hdr; | |
6028 | u16 fc; | |
6029 | union wpa_event_data event; | |
6030 | ||
6031 | hdr = (struct ieee80211_hdr *) buf; | |
6032 | fc = le_to_host16(hdr->frame_control); | |
6033 | ||
6034 | os_memset(&event, 0, sizeof(event)); | |
6035 | event.tx_status.type = WLAN_FC_GET_TYPE(fc); | |
6036 | event.tx_status.stype = WLAN_FC_GET_STYPE(fc); | |
6037 | event.tx_status.dst = hdr->addr1; | |
6038 | event.tx_status.data = buf; | |
6039 | event.tx_status.data_len = len; | |
6040 | event.tx_status.ack = ok; | |
6041 | wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); | |
6042 | } | |
6043 | ||
6044 | ||
6045 | static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, | |
6046 | u8 *buf, size_t len) | |
6047 | { | |
6048 | struct ieee80211_hdr *hdr = (void *)buf; | |
6049 | u16 fc; | |
6050 | union wpa_event_data event; | |
6051 | ||
6052 | if (len < sizeof(*hdr)) | |
6053 | return; | |
6054 | ||
6055 | fc = le_to_host16(hdr->frame_control); | |
6056 | ||
6057 | os_memset(&event, 0, sizeof(event)); | |
6058 | event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); | |
6059 | event.rx_from_unknown.addr = hdr->addr2; | |
6060 | event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == | |
6061 | (WLAN_FC_FROMDS | WLAN_FC_TODS); | |
6062 | wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); | |
6063 | } | |
6064 | ||
6065 | ||
6066 | static void handle_frame(struct wpa_driver_nl80211_data *drv, | |
6067 | u8 *buf, size_t len, int datarate, int ssi_signal) | |
6068 | { | |
6069 | struct ieee80211_hdr *hdr; | |
6070 | u16 fc; | |
6071 | union wpa_event_data event; | |
6072 | ||
6073 | hdr = (struct ieee80211_hdr *) buf; | |
6074 | fc = le_to_host16(hdr->frame_control); | |
6075 | ||
6076 | switch (WLAN_FC_GET_TYPE(fc)) { | |
6077 | case WLAN_FC_TYPE_MGMT: | |
6078 | os_memset(&event, 0, sizeof(event)); | |
6079 | event.rx_mgmt.frame = buf; | |
6080 | event.rx_mgmt.frame_len = len; | |
6081 | event.rx_mgmt.datarate = datarate; | |
6082 | event.rx_mgmt.ssi_signal = ssi_signal; | |
6083 | wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); | |
6084 | break; | |
6085 | case WLAN_FC_TYPE_CTRL: | |
6086 | /* can only get here with PS-Poll frames */ | |
6087 | wpa_printf(MSG_DEBUG, "CTRL"); | |
6088 | from_unknown_sta(drv, buf, len); | |
6089 | break; | |
6090 | case WLAN_FC_TYPE_DATA: | |
6091 | from_unknown_sta(drv, buf, len); | |
6092 | break; | |
6093 | } | |
6094 | } | |
6095 | ||
6096 | ||
6097 | static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) | |
6098 | { | |
6099 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
6100 | int len; | |
6101 | unsigned char buf[3000]; | |
6102 | struct ieee80211_radiotap_iterator iter; | |
6103 | int ret; | |
6104 | int datarate = 0, ssi_signal = 0; | |
6105 | int injected = 0, failed = 0, rxflags = 0; | |
6106 | ||
6107 | len = recv(sock, buf, sizeof(buf), 0); | |
6108 | if (len < 0) { | |
6109 | perror("recv"); | |
6110 | return; | |
6111 | } | |
6112 | ||
6113 | if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { | |
6114 | printf("received invalid radiotap frame\n"); | |
6115 | return; | |
6116 | } | |
6117 | ||
6118 | while (1) { | |
6119 | ret = ieee80211_radiotap_iterator_next(&iter); | |
6120 | if (ret == -ENOENT) | |
6121 | break; | |
6122 | if (ret) { | |
6123 | printf("received invalid radiotap frame (%d)\n", ret); | |
6124 | return; | |
6125 | } | |
6126 | switch (iter.this_arg_index) { | |
6127 | case IEEE80211_RADIOTAP_FLAGS: | |
6128 | if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) | |
6129 | len -= 4; | |
6130 | break; | |
6131 | case IEEE80211_RADIOTAP_RX_FLAGS: | |
6132 | rxflags = 1; | |
6133 | break; | |
6134 | case IEEE80211_RADIOTAP_TX_FLAGS: | |
6135 | injected = 1; | |
6136 | failed = le_to_host16((*(uint16_t *) iter.this_arg)) & | |
6137 | IEEE80211_RADIOTAP_F_TX_FAIL; | |
6138 | break; | |
6139 | case IEEE80211_RADIOTAP_DATA_RETRIES: | |
6140 | break; | |
6141 | case IEEE80211_RADIOTAP_CHANNEL: | |
6142 | /* TODO: convert from freq/flags to channel number */ | |
6143 | break; | |
6144 | case IEEE80211_RADIOTAP_RATE: | |
6145 | datarate = *iter.this_arg * 5; | |
6146 | break; | |
6147 | case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: | |
6148 | ssi_signal = (s8) *iter.this_arg; | |
6149 | break; | |
6150 | } | |
6151 | } | |
6152 | ||
6153 | if (rxflags && injected) | |
6154 | return; | |
6155 | ||
6156 | if (!injected) | |
6157 | handle_frame(drv, buf + iter.max_length, | |
6158 | len - iter.max_length, datarate, ssi_signal); | |
6159 | else | |
6160 | handle_tx_callback(drv->ctx, buf + iter.max_length, | |
6161 | len - iter.max_length, !failed); | |
6162 | } | |
6163 | ||
6164 | ||
6165 | /* | |
6166 | * we post-process the filter code later and rewrite | |
6167 | * this to the offset to the last instruction | |
6168 | */ | |
6169 | #define PASS 0xFF | |
6170 | #define FAIL 0xFE | |
6171 | ||
6172 | static struct sock_filter msock_filter_insns[] = { | |
6173 | /* | |
6174 | * do a little-endian load of the radiotap length field | |
6175 | */ | |
6176 | /* load lower byte into A */ | |
6177 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), | |
6178 | /* put it into X (== index register) */ | |
6179 | BPF_STMT(BPF_MISC| BPF_TAX, 0), | |
6180 | /* load upper byte into A */ | |
6181 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), | |
6182 | /* left-shift it by 8 */ | |
6183 | BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), | |
6184 | /* or with X */ | |
6185 | BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), | |
6186 | /* put result into X */ | |
6187 | BPF_STMT(BPF_MISC| BPF_TAX, 0), | |
6188 | ||
6189 | /* | |
6190 | * Allow management frames through, this also gives us those | |
6191 | * management frames that we sent ourselves with status | |
6192 | */ | |
6193 | /* load the lower byte of the IEEE 802.11 frame control field */ | |
6194 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
6195 | /* mask off frame type and version */ | |
6196 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), | |
6197 | /* accept frame if it's both 0, fall through otherwise */ | |
6198 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), | |
6199 | ||
6200 | /* | |
6201 | * TODO: add a bit to radiotap RX flags that indicates | |
6202 | * that the sending station is not associated, then | |
6203 | * add a filter here that filters on our DA and that flag | |
6204 | * to allow us to deauth frames to that bad station. | |
6205 | * | |
6206 | * For now allow all To DS data frames through. | |
6207 | */ | |
6208 | /* load the IEEE 802.11 frame control field */ | |
6209 | BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), | |
6210 | /* mask off frame type, version and DS status */ | |
6211 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), | |
6212 | /* accept frame if version 0, type 2 and To DS, fall through otherwise | |
6213 | */ | |
6214 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), | |
6215 | ||
6216 | #if 0 | |
6217 | /* | |
6218 | * drop non-data frames | |
6219 | */ | |
6220 | /* load the lower byte of the frame control field */ | |
6221 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
6222 | /* mask off QoS bit */ | |
6223 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), | |
6224 | /* drop non-data frames */ | |
6225 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), | |
6226 | #endif | |
6227 | /* load the upper byte of the frame control field */ | |
6228 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), | |
6229 | /* mask off toDS/fromDS */ | |
6230 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), | |
6231 | /* accept WDS frames */ | |
6232 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), | |
6233 | ||
6234 | /* | |
6235 | * add header length to index | |
6236 | */ | |
6237 | /* load the lower byte of the frame control field */ | |
6238 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
6239 | /* mask off QoS bit */ | |
6240 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), | |
6241 | /* right shift it by 6 to give 0 or 2 */ | |
6242 | BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), | |
6243 | /* add data frame header length */ | |
6244 | BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), | |
6245 | /* add index, was start of 802.11 header */ | |
6246 | BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), | |
6247 | /* move to index, now start of LL header */ | |
6248 | BPF_STMT(BPF_MISC | BPF_TAX, 0), | |
6249 | ||
6250 | /* | |
6251 | * Accept empty data frames, we use those for | |
6252 | * polling activity. | |
6253 | */ | |
6254 | BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), | |
6255 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), | |
6256 | ||
6257 | /* | |
6258 | * Accept EAPOL frames | |
6259 | */ | |
6260 | BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), | |
6261 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), | |
6262 | BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), | |
6263 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), | |
6264 | ||
6265 | /* keep these last two statements or change the code below */ | |
6266 | /* return 0 == "DROP" */ | |
6267 | BPF_STMT(BPF_RET | BPF_K, 0), | |
6268 | /* return ~0 == "keep all" */ | |
6269 | BPF_STMT(BPF_RET | BPF_K, ~0), | |
6270 | }; | |
6271 | ||
6272 | static struct sock_fprog msock_filter = { | |
6273 | .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), | |
6274 | .filter = msock_filter_insns, | |
6275 | }; | |
6276 | ||
6277 | ||
6278 | static int add_monitor_filter(int s) | |
6279 | { | |
6280 | int idx; | |
6281 | ||
6282 | /* rewrite all PASS/FAIL jump offsets */ | |
6283 | for (idx = 0; idx < msock_filter.len; idx++) { | |
6284 | struct sock_filter *insn = &msock_filter_insns[idx]; | |
6285 | ||
6286 | if (BPF_CLASS(insn->code) == BPF_JMP) { | |
6287 | if (insn->code == (BPF_JMP|BPF_JA)) { | |
6288 | if (insn->k == PASS) | |
6289 | insn->k = msock_filter.len - idx - 2; | |
6290 | else if (insn->k == FAIL) | |
6291 | insn->k = msock_filter.len - idx - 3; | |
6292 | } | |
6293 | ||
6294 | if (insn->jt == PASS) | |
6295 | insn->jt = msock_filter.len - idx - 2; | |
6296 | else if (insn->jt == FAIL) | |
6297 | insn->jt = msock_filter.len - idx - 3; | |
6298 | ||
6299 | if (insn->jf == PASS) | |
6300 | insn->jf = msock_filter.len - idx - 2; | |
6301 | else if (insn->jf == FAIL) | |
6302 | insn->jf = msock_filter.len - idx - 3; | |
6303 | } | |
6304 | } | |
6305 | ||
6306 | if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, | |
6307 | &msock_filter, sizeof(msock_filter))) { | |
6308 | perror("SO_ATTACH_FILTER"); | |
6309 | return -1; | |
6310 | } | |
6311 | ||
6312 | return 0; | |
6313 | } | |
6314 | ||
6315 | ||
6316 | static void nl80211_remove_monitor_interface( | |
6317 | struct wpa_driver_nl80211_data *drv) | |
6318 | { | |
6319 | drv->monitor_refcount--; | |
6320 | if (drv->monitor_refcount > 0) | |
6321 | return; | |
6322 | ||
6323 | if (drv->monitor_ifidx >= 0) { | |
6324 | nl80211_remove_iface(drv, drv->monitor_ifidx); | |
6325 | drv->monitor_ifidx = -1; | |
6326 | } | |
6327 | if (drv->monitor_sock >= 0) { | |
6328 | eloop_unregister_read_sock(drv->monitor_sock); | |
6329 | close(drv->monitor_sock); | |
6330 | drv->monitor_sock = -1; | |
6331 | } | |
6332 | } | |
6333 | ||
6334 | ||
6335 | static int | |
6336 | nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) | |
6337 | { | |
6338 | char buf[IFNAMSIZ]; | |
6339 | struct sockaddr_ll ll; | |
6340 | int optval; | |
6341 | socklen_t optlen; | |
6342 | ||
6343 | if (drv->monitor_ifidx >= 0) { | |
6344 | drv->monitor_refcount++; | |
6345 | return 0; | |
6346 | } | |
6347 | ||
6348 | if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { | |
6349 | /* | |
6350 | * P2P interface name is of the format p2p-%s-%d. For monitor | |
6351 | * interface name corresponding to P2P GO, replace "p2p-" with | |
6352 | * "mon-" to retain the same interface name length and to | |
6353 | * indicate that it is a monitor interface. | |
6354 | */ | |
6355 | snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); | |
6356 | } else { | |
6357 | /* Non-P2P interface with AP functionality. */ | |
6358 | snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); | |
6359 | } | |
6360 | ||
6361 | buf[IFNAMSIZ - 1] = '\0'; | |
6362 | ||
6363 | drv->monitor_ifidx = | |
6364 | nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, | |
6365 | 0); | |
6366 | ||
6367 | if (drv->monitor_ifidx == -EOPNOTSUPP) { | |
6368 | /* | |
6369 | * This is backward compatibility for a few versions of | |
6370 | * the kernel only that didn't advertise the right | |
6371 | * attributes for the only driver that then supported | |
6372 | * AP mode w/o monitor -- ath6kl. | |
6373 | */ | |
6374 | wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " | |
6375 | "monitor interface type - try to run without it"); | |
6376 | drv->device_ap_sme = 1; | |
6377 | } | |
6378 | ||
6379 | if (drv->monitor_ifidx < 0) | |
6380 | return -1; | |
6381 | ||
6382 | if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) | |
6383 | goto error; | |
6384 | ||
6385 | memset(&ll, 0, sizeof(ll)); | |
6386 | ll.sll_family = AF_PACKET; | |
6387 | ll.sll_ifindex = drv->monitor_ifidx; | |
6388 | drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); | |
6389 | if (drv->monitor_sock < 0) { | |
6390 | perror("socket[PF_PACKET,SOCK_RAW]"); | |
6391 | goto error; | |
6392 | } | |
6393 | ||
6394 | if (add_monitor_filter(drv->monitor_sock)) { | |
6395 | wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " | |
6396 | "interface; do filtering in user space"); | |
6397 | /* This works, but will cost in performance. */ | |
6398 | } | |
6399 | ||
6400 | if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { | |
6401 | perror("monitor socket bind"); | |
6402 | goto error; | |
6403 | } | |
6404 | ||
6405 | optlen = sizeof(optval); | |
6406 | optval = 20; | |
6407 | if (setsockopt | |
6408 | (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { | |
6409 | perror("Failed to set socket priority"); | |
6410 | goto error; | |
6411 | } | |
6412 | ||
6413 | if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, | |
6414 | drv, NULL)) { | |
6415 | printf("Could not register monitor read socket\n"); | |
6416 | goto error; | |
6417 | } | |
6418 | ||
6419 | return 0; | |
6420 | error: | |
6421 | nl80211_remove_monitor_interface(drv); | |
6422 | return -1; | |
6423 | } | |
6424 | ||
6425 | ||
6426 | static int nl80211_setup_ap(struct i802_bss *bss) | |
6427 | { | |
6428 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6429 | ||
6430 | wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " | |
6431 | "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); | |
6432 | ||
6433 | /* | |
6434 | * Disable Probe Request reporting unless we need it in this way for | |
6435 | * devices that include the AP SME, in the other case (unless using | |
6436 | * monitor iface) we'll get it through the nl_mgmt socket instead. | |
6437 | */ | |
6438 | if (!drv->device_ap_sme) | |
6439 | wpa_driver_nl80211_probe_req_report(bss, 0); | |
6440 | ||
6441 | if (!drv->device_ap_sme && !drv->use_monitor) | |
6442 | if (nl80211_mgmt_subscribe_ap(bss)) | |
6443 | return -1; | |
6444 | ||
6445 | if (drv->device_ap_sme && !drv->use_monitor) | |
6446 | if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) | |
6447 | return -1; | |
6448 | ||
6449 | if (!drv->device_ap_sme && drv->use_monitor && | |
6450 | nl80211_create_monitor_interface(drv) && | |
6451 | !drv->device_ap_sme) | |
6452 | return -1; | |
6453 | ||
6454 | if (drv->device_ap_sme && | |
6455 | wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { | |
6456 | wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " | |
6457 | "Probe Request frame reporting in AP mode"); | |
6458 | /* Try to survive without this */ | |
6459 | } | |
6460 | ||
6461 | return 0; | |
6462 | } | |
6463 | ||
6464 | ||
6465 | static void nl80211_teardown_ap(struct i802_bss *bss) | |
6466 | { | |
6467 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6468 | ||
6469 | if (drv->device_ap_sme) { | |
6470 | wpa_driver_nl80211_probe_req_report(bss, 0); | |
6471 | if (!drv->use_monitor) | |
6472 | nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); | |
6473 | } else if (drv->use_monitor) | |
6474 | nl80211_remove_monitor_interface(drv); | |
6475 | else | |
6476 | nl80211_mgmt_unsubscribe(bss, "AP teardown"); | |
6477 | ||
6478 | bss->beacon_set = 0; | |
6479 | } | |
6480 | ||
6481 | ||
6482 | static int nl80211_send_eapol_data(struct i802_bss *bss, | |
6483 | const u8 *addr, const u8 *data, | |
6484 | size_t data_len) | |
6485 | { | |
6486 | struct sockaddr_ll ll; | |
6487 | int ret; | |
6488 | ||
6489 | if (bss->drv->eapol_tx_sock < 0) { | |
6490 | wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); | |
6491 | return -1; | |
6492 | } | |
6493 | ||
6494 | os_memset(&ll, 0, sizeof(ll)); | |
6495 | ll.sll_family = AF_PACKET; | |
6496 | ll.sll_ifindex = bss->ifindex; | |
6497 | ll.sll_protocol = htons(ETH_P_PAE); | |
6498 | ll.sll_halen = ETH_ALEN; | |
6499 | os_memcpy(ll.sll_addr, addr, ETH_ALEN); | |
6500 | ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, | |
6501 | (struct sockaddr *) &ll, sizeof(ll)); | |
6502 | if (ret < 0) | |
6503 | wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", | |
6504 | strerror(errno)); | |
6505 | ||
6506 | return ret; | |
6507 | } | |
6508 | ||
6509 | ||
6510 | static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; | |
6511 | ||
6512 | static int wpa_driver_nl80211_hapd_send_eapol( | |
6513 | void *priv, const u8 *addr, const u8 *data, | |
6514 | size_t data_len, int encrypt, const u8 *own_addr, u32 flags) | |
6515 | { | |
6516 | struct i802_bss *bss = priv; | |
6517 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6518 | struct ieee80211_hdr *hdr; | |
6519 | size_t len; | |
6520 | u8 *pos; | |
6521 | int res; | |
6522 | int qos = flags & WPA_STA_WMM; | |
6523 | ||
6524 | if (drv->device_ap_sme || !drv->use_monitor) | |
6525 | return nl80211_send_eapol_data(bss, addr, data, data_len); | |
6526 | ||
6527 | len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + | |
6528 | data_len; | |
6529 | hdr = os_zalloc(len); | |
6530 | if (hdr == NULL) { | |
6531 | printf("malloc() failed for i802_send_data(len=%lu)\n", | |
6532 | (unsigned long) len); | |
6533 | return -1; | |
6534 | } | |
6535 | ||
6536 | hdr->frame_control = | |
6537 | IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); | |
6538 | hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); | |
6539 | if (encrypt) | |
6540 | hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); | |
6541 | if (qos) { | |
6542 | hdr->frame_control |= | |
6543 | host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); | |
6544 | } | |
6545 | ||
6546 | memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); | |
6547 | memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); | |
6548 | memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); | |
6549 | pos = (u8 *) (hdr + 1); | |
6550 | ||
6551 | if (qos) { | |
6552 | /* Set highest priority in QoS header */ | |
6553 | pos[0] = 7; | |
6554 | pos[1] = 0; | |
6555 | pos += 2; | |
6556 | } | |
6557 | ||
6558 | memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); | |
6559 | pos += sizeof(rfc1042_header); | |
6560 | WPA_PUT_BE16(pos, ETH_P_PAE); | |
6561 | pos += 2; | |
6562 | memcpy(pos, data, data_len); | |
6563 | ||
6564 | res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, | |
6565 | 0, 0, 0, 0); | |
6566 | if (res < 0) { | |
6567 | wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " | |
6568 | "failed: %d (%s)", | |
6569 | (unsigned long) len, errno, strerror(errno)); | |
6570 | } | |
6571 | os_free(hdr); | |
6572 | ||
6573 | return res; | |
6574 | } | |
6575 | ||
6576 | ||
6577 | static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, | |
6578 | int total_flags, | |
6579 | int flags_or, int flags_and) | |
6580 | { | |
6581 | struct i802_bss *bss = priv; | |
6582 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6583 | struct nl_msg *msg, *flags = NULL; | |
6584 | struct nl80211_sta_flag_update upd; | |
6585 | ||
6586 | msg = nlmsg_alloc(); | |
6587 | if (!msg) | |
6588 | return -ENOMEM; | |
6589 | ||
6590 | flags = nlmsg_alloc(); | |
6591 | if (!flags) { | |
6592 | nlmsg_free(msg); | |
6593 | return -ENOMEM; | |
6594 | } | |
6595 | ||
6596 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); | |
6597 | ||
6598 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
6599 | if_nametoindex(bss->ifname)); | |
6600 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
6601 | ||
6602 | /* | |
6603 | * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This | |
6604 | * can be removed eventually. | |
6605 | */ | |
6606 | if (total_flags & WPA_STA_AUTHORIZED) | |
6607 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED); | |
6608 | ||
6609 | if (total_flags & WPA_STA_WMM) | |
6610 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME); | |
6611 | ||
6612 | if (total_flags & WPA_STA_SHORT_PREAMBLE) | |
6613 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE); | |
6614 | ||
6615 | if (total_flags & WPA_STA_MFP) | |
6616 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP); | |
6617 | ||
6618 | if (total_flags & WPA_STA_TDLS_PEER) | |
6619 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER); | |
6620 | ||
6621 | if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags)) | |
6622 | goto nla_put_failure; | |
6623 | ||
6624 | os_memset(&upd, 0, sizeof(upd)); | |
6625 | upd.mask = sta_flags_nl80211(flags_or | ~flags_and); | |
6626 | upd.set = sta_flags_nl80211(flags_or); | |
6627 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
6628 | ||
6629 | nlmsg_free(flags); | |
6630 | ||
6631 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
6632 | nla_put_failure: | |
6633 | nlmsg_free(msg); | |
6634 | nlmsg_free(flags); | |
6635 | return -ENOBUFS; | |
6636 | } | |
6637 | ||
6638 | ||
6639 | static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, | |
6640 | struct wpa_driver_associate_params *params) | |
6641 | { | |
6642 | enum nl80211_iftype nlmode, old_mode; | |
6643 | struct hostapd_freq_params freq = { | |
6644 | .freq = params->freq, | |
6645 | }; | |
6646 | ||
6647 | if (params->p2p) { | |
6648 | wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " | |
6649 | "group (GO)"); | |
6650 | nlmode = NL80211_IFTYPE_P2P_GO; | |
6651 | } else | |
6652 | nlmode = NL80211_IFTYPE_AP; | |
6653 | ||
6654 | old_mode = drv->nlmode; | |
6655 | if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { | |
6656 | nl80211_remove_monitor_interface(drv); | |
6657 | return -1; | |
6658 | } | |
6659 | ||
6660 | if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { | |
6661 | if (old_mode != nlmode) | |
6662 | wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); | |
6663 | nl80211_remove_monitor_interface(drv); | |
6664 | return -1; | |
6665 | } | |
6666 | ||
6667 | return 0; | |
6668 | } | |
6669 | ||
6670 | ||
6671 | static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) | |
6672 | { | |
6673 | struct nl_msg *msg; | |
6674 | int ret = -1; | |
6675 | ||
6676 | msg = nlmsg_alloc(); | |
6677 | if (!msg) | |
6678 | return -1; | |
6679 | ||
6680 | nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); | |
6681 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
6682 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
6683 | msg = NULL; | |
6684 | if (ret) { | |
6685 | wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " | |
6686 | "(%s)", ret, strerror(-ret)); | |
6687 | goto nla_put_failure; | |
6688 | } | |
6689 | ||
6690 | ret = 0; | |
6691 | wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); | |
6692 | ||
6693 | nla_put_failure: | |
6694 | nlmsg_free(msg); | |
6695 | return ret; | |
6696 | } | |
6697 | ||
6698 | ||
6699 | static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, | |
6700 | struct wpa_driver_associate_params *params) | |
6701 | { | |
6702 | struct nl_msg *msg; | |
6703 | int ret = -1; | |
6704 | int count = 0; | |
6705 | ||
6706 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); | |
6707 | ||
6708 | if (wpa_driver_nl80211_set_mode(&drv->first_bss, | |
6709 | NL80211_IFTYPE_ADHOC)) { | |
6710 | wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " | |
6711 | "IBSS mode"); | |
6712 | return -1; | |
6713 | } | |
6714 | ||
6715 | retry: | |
6716 | msg = nlmsg_alloc(); | |
6717 | if (!msg) | |
6718 | return -1; | |
6719 | ||
6720 | nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); | |
6721 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
6722 | ||
6723 | if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) | |
6724 | goto nla_put_failure; | |
6725 | ||
6726 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
6727 | params->ssid, params->ssid_len); | |
6728 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
6729 | params->ssid); | |
6730 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
6731 | drv->ssid_len = params->ssid_len; | |
6732 | ||
6733 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
6734 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
6735 | ||
6736 | ret = nl80211_set_conn_keys(params, msg); | |
6737 | if (ret) | |
6738 | goto nla_put_failure; | |
6739 | ||
6740 | if (params->bssid && params->fixed_bssid) { | |
6741 | wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, | |
6742 | MAC2STR(params->bssid)); | |
6743 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
6744 | } | |
6745 | ||
6746 | if (params->key_mgmt_suite == KEY_MGMT_802_1X || | |
6747 | params->key_mgmt_suite == KEY_MGMT_PSK || | |
6748 | params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || | |
6749 | params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { | |
6750 | wpa_printf(MSG_DEBUG, " * control port"); | |
6751 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); | |
6752 | } | |
6753 | ||
6754 | if (params->wpa_ie) { | |
6755 | wpa_hexdump(MSG_DEBUG, | |
6756 | " * Extra IEs for Beacon/Probe Response frames", | |
6757 | params->wpa_ie, params->wpa_ie_len); | |
6758 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
6759 | params->wpa_ie); | |
6760 | } | |
6761 | ||
6762 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
6763 | msg = NULL; | |
6764 | if (ret) { | |
6765 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", | |
6766 | ret, strerror(-ret)); | |
6767 | count++; | |
6768 | if (ret == -EALREADY && count == 1) { | |
6769 | wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " | |
6770 | "forced leave"); | |
6771 | nl80211_leave_ibss(drv); | |
6772 | nlmsg_free(msg); | |
6773 | goto retry; | |
6774 | } | |
6775 | ||
6776 | goto nla_put_failure; | |
6777 | } | |
6778 | ret = 0; | |
6779 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); | |
6780 | ||
6781 | nla_put_failure: | |
6782 | nlmsg_free(msg); | |
6783 | return ret; | |
6784 | } | |
6785 | ||
6786 | ||
6787 | static int wpa_driver_nl80211_try_connect( | |
6788 | struct wpa_driver_nl80211_data *drv, | |
6789 | struct wpa_driver_associate_params *params) | |
6790 | { | |
6791 | struct nl_msg *msg; | |
6792 | enum nl80211_auth_type type; | |
6793 | int ret = 0; | |
6794 | int algs; | |
6795 | ||
6796 | msg = nlmsg_alloc(); | |
6797 | if (!msg) | |
6798 | return -1; | |
6799 | ||
6800 | wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); | |
6801 | nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); | |
6802 | ||
6803 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
6804 | if (params->bssid) { | |
6805 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
6806 | MAC2STR(params->bssid)); | |
6807 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
6808 | } | |
6809 | if (params->freq) { | |
6810 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
6811 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
6812 | } | |
6813 | if (params->bg_scan_period >= 0) { | |
6814 | wpa_printf(MSG_DEBUG, " * bg scan period=%d", | |
6815 | params->bg_scan_period); | |
6816 | NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, | |
6817 | params->bg_scan_period); | |
6818 | } | |
6819 | if (params->ssid) { | |
6820 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
6821 | params->ssid, params->ssid_len); | |
6822 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
6823 | params->ssid); | |
6824 | if (params->ssid_len > sizeof(drv->ssid)) | |
6825 | goto nla_put_failure; | |
6826 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
6827 | drv->ssid_len = params->ssid_len; | |
6828 | } | |
6829 | wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); | |
6830 | if (params->wpa_ie) | |
6831 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
6832 | params->wpa_ie); | |
6833 | ||
6834 | algs = 0; | |
6835 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) | |
6836 | algs++; | |
6837 | if (params->auth_alg & WPA_AUTH_ALG_SHARED) | |
6838 | algs++; | |
6839 | if (params->auth_alg & WPA_AUTH_ALG_LEAP) | |
6840 | algs++; | |
6841 | if (algs > 1) { | |
6842 | wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " | |
6843 | "selection"); | |
6844 | goto skip_auth_type; | |
6845 | } | |
6846 | ||
6847 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) | |
6848 | type = NL80211_AUTHTYPE_OPEN_SYSTEM; | |
6849 | else if (params->auth_alg & WPA_AUTH_ALG_SHARED) | |
6850 | type = NL80211_AUTHTYPE_SHARED_KEY; | |
6851 | else if (params->auth_alg & WPA_AUTH_ALG_LEAP) | |
6852 | type = NL80211_AUTHTYPE_NETWORK_EAP; | |
6853 | else if (params->auth_alg & WPA_AUTH_ALG_FT) | |
6854 | type = NL80211_AUTHTYPE_FT; | |
6855 | else | |
6856 | goto nla_put_failure; | |
6857 | ||
6858 | wpa_printf(MSG_DEBUG, " * Auth Type %d", type); | |
6859 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); | |
6860 | ||
6861 | skip_auth_type: | |
6862 | if (params->wpa_proto) { | |
6863 | enum nl80211_wpa_versions ver = 0; | |
6864 | ||
6865 | if (params->wpa_proto & WPA_PROTO_WPA) | |
6866 | ver |= NL80211_WPA_VERSION_1; | |
6867 | if (params->wpa_proto & WPA_PROTO_RSN) | |
6868 | ver |= NL80211_WPA_VERSION_2; | |
6869 | ||
6870 | wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); | |
6871 | NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); | |
6872 | } | |
6873 | ||
6874 | if (params->pairwise_suite != CIPHER_NONE) { | |
6875 | int cipher; | |
6876 | ||
6877 | switch (params->pairwise_suite) { | |
6878 | case CIPHER_SMS4: | |
6879 | cipher = WLAN_CIPHER_SUITE_SMS4; | |
6880 | break; | |
6881 | case CIPHER_WEP40: | |
6882 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
6883 | break; | |
6884 | case CIPHER_WEP104: | |
6885 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
6886 | break; | |
6887 | case CIPHER_CCMP: | |
6888 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
6889 | break; | |
6890 | case CIPHER_GCMP: | |
6891 | cipher = WLAN_CIPHER_SUITE_GCMP; | |
6892 | break; | |
6893 | case CIPHER_TKIP: | |
6894 | default: | |
6895 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
6896 | break; | |
6897 | } | |
6898 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); | |
6899 | } | |
6900 | ||
6901 | if (params->group_suite != CIPHER_NONE) { | |
6902 | int cipher; | |
6903 | ||
6904 | switch (params->group_suite) { | |
6905 | case CIPHER_SMS4: | |
6906 | cipher = WLAN_CIPHER_SUITE_SMS4; | |
6907 | break; | |
6908 | case CIPHER_WEP40: | |
6909 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
6910 | break; | |
6911 | case CIPHER_WEP104: | |
6912 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
6913 | break; | |
6914 | case CIPHER_CCMP: | |
6915 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
6916 | break; | |
6917 | case CIPHER_GCMP: | |
6918 | cipher = WLAN_CIPHER_SUITE_GCMP; | |
6919 | break; | |
6920 | case CIPHER_TKIP: | |
6921 | default: | |
6922 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
6923 | break; | |
6924 | } | |
6925 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); | |
6926 | } | |
6927 | ||
6928 | if (params->key_mgmt_suite == KEY_MGMT_802_1X || | |
6929 | params->key_mgmt_suite == KEY_MGMT_PSK || | |
6930 | params->key_mgmt_suite == KEY_MGMT_CCKM) { | |
6931 | int mgmt = WLAN_AKM_SUITE_PSK; | |
6932 | ||
6933 | switch (params->key_mgmt_suite) { | |
6934 | case KEY_MGMT_CCKM: | |
6935 | mgmt = WLAN_AKM_SUITE_CCKM; | |
6936 | break; | |
6937 | case KEY_MGMT_802_1X: | |
6938 | mgmt = WLAN_AKM_SUITE_8021X; | |
6939 | break; | |
6940 | case KEY_MGMT_PSK: | |
6941 | default: | |
6942 | mgmt = WLAN_AKM_SUITE_PSK; | |
6943 | break; | |
6944 | } | |
6945 | NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); | |
6946 | } | |
6947 | ||
6948 | #ifdef CONFIG_IEEE80211W | |
6949 | if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) | |
6950 | NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); | |
6951 | #endif /* CONFIG_IEEE80211W */ | |
6952 | ||
6953 | if (params->disable_ht) | |
6954 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); | |
6955 | ||
6956 | if (params->htcaps && params->htcaps_mask) { | |
6957 | int sz = sizeof(struct ieee80211_ht_capabilities); | |
6958 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); | |
6959 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, | |
6960 | params->htcaps_mask); | |
6961 | } | |
6962 | ||
6963 | ret = nl80211_set_conn_keys(params, msg); | |
6964 | if (ret) | |
6965 | goto nla_put_failure; | |
6966 | ||
6967 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
6968 | msg = NULL; | |
6969 | if (ret) { | |
6970 | wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " | |
6971 | "(%s)", ret, strerror(-ret)); | |
6972 | goto nla_put_failure; | |
6973 | } | |
6974 | ret = 0; | |
6975 | wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); | |
6976 | ||
6977 | nla_put_failure: | |
6978 | nlmsg_free(msg); | |
6979 | return ret; | |
6980 | ||
6981 | } | |
6982 | ||
6983 | ||
6984 | static int wpa_driver_nl80211_connect( | |
6985 | struct wpa_driver_nl80211_data *drv, | |
6986 | struct wpa_driver_associate_params *params) | |
6987 | { | |
6988 | int ret = wpa_driver_nl80211_try_connect(drv, params); | |
6989 | if (ret == -EALREADY) { | |
6990 | /* | |
6991 | * cfg80211 does not currently accept new connections if | |
6992 | * we are already connected. As a workaround, force | |
6993 | * disconnection and try again. | |
6994 | */ | |
6995 | wpa_printf(MSG_DEBUG, "nl80211: Explicitly " | |
6996 | "disconnecting before reassociation " | |
6997 | "attempt"); | |
6998 | if (wpa_driver_nl80211_disconnect( | |
6999 | drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) | |
7000 | return -1; | |
7001 | /* Ignore the next local disconnect message. */ | |
7002 | drv->ignore_next_local_disconnect = 1; | |
7003 | ret = wpa_driver_nl80211_try_connect(drv, params); | |
7004 | } | |
7005 | return ret; | |
7006 | } | |
7007 | ||
7008 | ||
7009 | static int wpa_driver_nl80211_associate( | |
7010 | void *priv, struct wpa_driver_associate_params *params) | |
7011 | { | |
7012 | struct i802_bss *bss = priv; | |
7013 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7014 | int ret = -1; | |
7015 | struct nl_msg *msg; | |
7016 | ||
7017 | if (params->mode == IEEE80211_MODE_AP) | |
7018 | return wpa_driver_nl80211_ap(drv, params); | |
7019 | ||
7020 | if (params->mode == IEEE80211_MODE_IBSS) | |
7021 | return wpa_driver_nl80211_ibss(drv, params); | |
7022 | ||
7023 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { | |
7024 | enum nl80211_iftype nlmode = params->p2p ? | |
7025 | NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; | |
7026 | ||
7027 | if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) | |
7028 | return -1; | |
7029 | return wpa_driver_nl80211_connect(drv, params); | |
7030 | } | |
7031 | ||
7032 | drv->associated = 0; | |
7033 | ||
7034 | msg = nlmsg_alloc(); | |
7035 | if (!msg) | |
7036 | return -1; | |
7037 | ||
7038 | wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", | |
7039 | drv->ifindex); | |
7040 | nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); | |
7041 | ||
7042 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
7043 | if (params->bssid) { | |
7044 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
7045 | MAC2STR(params->bssid)); | |
7046 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
7047 | } | |
7048 | if (params->freq) { | |
7049 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
7050 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
7051 | drv->assoc_freq = params->freq; | |
7052 | } else | |
7053 | drv->assoc_freq = 0; | |
7054 | if (params->bg_scan_period >= 0) { | |
7055 | wpa_printf(MSG_DEBUG, " * bg scan period=%d", | |
7056 | params->bg_scan_period); | |
7057 | NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, | |
7058 | params->bg_scan_period); | |
7059 | } | |
7060 | if (params->ssid) { | |
7061 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
7062 | params->ssid, params->ssid_len); | |
7063 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
7064 | params->ssid); | |
7065 | if (params->ssid_len > sizeof(drv->ssid)) | |
7066 | goto nla_put_failure; | |
7067 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
7068 | drv->ssid_len = params->ssid_len; | |
7069 | } | |
7070 | wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); | |
7071 | if (params->wpa_ie) | |
7072 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
7073 | params->wpa_ie); | |
7074 | ||
7075 | if (params->pairwise_suite != CIPHER_NONE) { | |
7076 | int cipher; | |
7077 | ||
7078 | switch (params->pairwise_suite) { | |
7079 | case CIPHER_WEP40: | |
7080 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
7081 | break; | |
7082 | case CIPHER_WEP104: | |
7083 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
7084 | break; | |
7085 | case CIPHER_CCMP: | |
7086 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
7087 | break; | |
7088 | case CIPHER_GCMP: | |
7089 | cipher = WLAN_CIPHER_SUITE_GCMP; | |
7090 | break; | |
7091 | case CIPHER_TKIP: | |
7092 | default: | |
7093 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
7094 | break; | |
7095 | } | |
7096 | wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); | |
7097 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); | |
7098 | } | |
7099 | ||
7100 | if (params->group_suite != CIPHER_NONE) { | |
7101 | int cipher; | |
7102 | ||
7103 | switch (params->group_suite) { | |
7104 | case CIPHER_WEP40: | |
7105 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
7106 | break; | |
7107 | case CIPHER_WEP104: | |
7108 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
7109 | break; | |
7110 | case CIPHER_CCMP: | |
7111 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
7112 | break; | |
7113 | case CIPHER_GCMP: | |
7114 | cipher = WLAN_CIPHER_SUITE_GCMP; | |
7115 | break; | |
7116 | case CIPHER_TKIP: | |
7117 | default: | |
7118 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
7119 | break; | |
7120 | } | |
7121 | wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); | |
7122 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); | |
7123 | } | |
7124 | ||
7125 | #ifdef CONFIG_IEEE80211W | |
7126 | if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) | |
7127 | NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); | |
7128 | #endif /* CONFIG_IEEE80211W */ | |
7129 | ||
7130 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); | |
7131 | ||
7132 | if (params->prev_bssid) { | |
7133 | wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, | |
7134 | MAC2STR(params->prev_bssid)); | |
7135 | NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, | |
7136 | params->prev_bssid); | |
7137 | } | |
7138 | ||
7139 | if (params->disable_ht) | |
7140 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); | |
7141 | ||
7142 | if (params->htcaps && params->htcaps_mask) { | |
7143 | int sz = sizeof(struct ieee80211_ht_capabilities); | |
7144 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); | |
7145 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, | |
7146 | params->htcaps_mask); | |
7147 | } | |
7148 | ||
7149 | if (params->p2p) | |
7150 | wpa_printf(MSG_DEBUG, " * P2P group"); | |
7151 | ||
7152 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
7153 | msg = NULL; | |
7154 | if (ret) { | |
7155 | wpa_dbg(drv->ctx, MSG_DEBUG, | |
7156 | "nl80211: MLME command failed (assoc): ret=%d (%s)", | |
7157 | ret, strerror(-ret)); | |
7158 | nl80211_dump_scan(drv); | |
7159 | goto nla_put_failure; | |
7160 | } | |
7161 | ret = 0; | |
7162 | wpa_printf(MSG_DEBUG, "nl80211: Association request send " | |
7163 | "successfully"); | |
7164 | ||
7165 | nla_put_failure: | |
7166 | nlmsg_free(msg); | |
7167 | return ret; | |
7168 | } | |
7169 | ||
7170 | ||
7171 | static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, | |
7172 | int ifindex, enum nl80211_iftype mode) | |
7173 | { | |
7174 | struct nl_msg *msg; | |
7175 | int ret = -ENOBUFS; | |
7176 | ||
7177 | wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", | |
7178 | ifindex, mode, nl80211_iftype_str(mode)); | |
7179 | ||
7180 | msg = nlmsg_alloc(); | |
7181 | if (!msg) | |
7182 | return -ENOMEM; | |
7183 | ||
7184 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); | |
7185 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
7186 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); | |
7187 | ||
7188 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
7189 | msg = NULL; | |
7190 | if (!ret) | |
7191 | return 0; | |
7192 | nla_put_failure: | |
7193 | nlmsg_free(msg); | |
7194 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" | |
7195 | " %d (%s)", ifindex, mode, ret, strerror(-ret)); | |
7196 | return ret; | |
7197 | } | |
7198 | ||
7199 | ||
7200 | static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, | |
7201 | enum nl80211_iftype nlmode) | |
7202 | { | |
7203 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7204 | int ret = -1; | |
7205 | int i; | |
7206 | int was_ap = is_ap_interface(drv->nlmode); | |
7207 | int res; | |
7208 | ||
7209 | res = nl80211_set_mode(drv, drv->ifindex, nlmode); | |
7210 | if (res == 0) { | |
7211 | drv->nlmode = nlmode; | |
7212 | ret = 0; | |
7213 | goto done; | |
7214 | } | |
7215 | ||
7216 | if (res == -ENODEV) | |
7217 | return -1; | |
7218 | ||
7219 | if (nlmode == drv->nlmode) { | |
7220 | wpa_printf(MSG_DEBUG, "nl80211: Interface already in " | |
7221 | "requested mode - ignore error"); | |
7222 | ret = 0; | |
7223 | goto done; /* Already in the requested mode */ | |
7224 | } | |
7225 | ||
7226 | /* mac80211 doesn't allow mode changes while the device is up, so | |
7227 | * take the device down, try to set the mode again, and bring the | |
7228 | * device back up. | |
7229 | */ | |
7230 | wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " | |
7231 | "interface down"); | |
7232 | for (i = 0; i < 10; i++) { | |
7233 | res = linux_set_iface_flags(drv->global->ioctl_sock, | |
7234 | bss->ifname, 0); | |
7235 | if (res == -EACCES || res == -ENODEV) | |
7236 | break; | |
7237 | if (res == 0) { | |
7238 | /* Try to set the mode again while the interface is | |
7239 | * down */ | |
7240 | ret = nl80211_set_mode(drv, drv->ifindex, nlmode); | |
7241 | if (ret == -EACCES) | |
7242 | break; | |
7243 | res = linux_set_iface_flags(drv->global->ioctl_sock, | |
7244 | bss->ifname, 1); | |
7245 | if (res && !ret) | |
7246 | ret = -1; | |
7247 | else if (ret != -EBUSY) | |
7248 | break; | |
7249 | } else | |
7250 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set " | |
7251 | "interface down"); | |
7252 | os_sleep(0, 100000); | |
7253 | } | |
7254 | ||
7255 | if (!ret) { | |
7256 | wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " | |
7257 | "interface is down"); | |
7258 | drv->nlmode = nlmode; | |
7259 | drv->ignore_if_down_event = 1; | |
7260 | } | |
7261 | ||
7262 | done: | |
7263 | if (ret) { | |
7264 | wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " | |
7265 | "from %d failed", nlmode, drv->nlmode); | |
7266 | return ret; | |
7267 | } | |
7268 | ||
7269 | if (is_p2p_interface(nlmode)) | |
7270 | nl80211_disable_11b_rates(drv, drv->ifindex, 1); | |
7271 | else if (drv->disabled_11b_rates) | |
7272 | nl80211_disable_11b_rates(drv, drv->ifindex, 0); | |
7273 | ||
7274 | if (is_ap_interface(nlmode)) { | |
7275 | nl80211_mgmt_unsubscribe(bss, "start AP"); | |
7276 | /* Setup additional AP mode functionality if needed */ | |
7277 | if (nl80211_setup_ap(bss)) | |
7278 | return -1; | |
7279 | } else if (was_ap) { | |
7280 | /* Remove additional AP mode functionality */ | |
7281 | nl80211_teardown_ap(bss); | |
7282 | } else { | |
7283 | nl80211_mgmt_unsubscribe(bss, "mode change"); | |
7284 | } | |
7285 | ||
7286 | if (!bss->in_deinit && !is_ap_interface(nlmode) && | |
7287 | nl80211_mgmt_subscribe_non_ap(bss) < 0) | |
7288 | wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " | |
7289 | "frame processing - ignore for now"); | |
7290 | ||
7291 | return 0; | |
7292 | } | |
7293 | ||
7294 | ||
7295 | static int wpa_driver_nl80211_get_capa(void *priv, | |
7296 | struct wpa_driver_capa *capa) | |
7297 | { | |
7298 | struct i802_bss *bss = priv; | |
7299 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7300 | if (!drv->has_capability) | |
7301 | return -1; | |
7302 | os_memcpy(capa, &drv->capa, sizeof(*capa)); | |
7303 | return 0; | |
7304 | } | |
7305 | ||
7306 | ||
7307 | static int wpa_driver_nl80211_set_operstate(void *priv, int state) | |
7308 | { | |
7309 | struct i802_bss *bss = priv; | |
7310 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7311 | ||
7312 | wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", | |
7313 | __func__, drv->operstate, state, state ? "UP" : "DORMANT"); | |
7314 | drv->operstate = state; | |
7315 | return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, | |
7316 | state ? IF_OPER_UP : IF_OPER_DORMANT); | |
7317 | } | |
7318 | ||
7319 | ||
7320 | static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) | |
7321 | { | |
7322 | struct i802_bss *bss = priv; | |
7323 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7324 | struct nl_msg *msg; | |
7325 | struct nl80211_sta_flag_update upd; | |
7326 | ||
7327 | msg = nlmsg_alloc(); | |
7328 | if (!msg) | |
7329 | return -ENOMEM; | |
7330 | ||
7331 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); | |
7332 | ||
7333 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
7334 | if_nametoindex(bss->ifname)); | |
7335 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); | |
7336 | ||
7337 | os_memset(&upd, 0, sizeof(upd)); | |
7338 | upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); | |
7339 | if (authorized) | |
7340 | upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); | |
7341 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
7342 | ||
7343 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
7344 | nla_put_failure: | |
7345 | nlmsg_free(msg); | |
7346 | return -ENOBUFS; | |
7347 | } | |
7348 | ||
7349 | ||
7350 | /* Set kernel driver on given frequency (MHz) */ | |
7351 | static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) | |
7352 | { | |
7353 | struct i802_bss *bss = priv; | |
7354 | return wpa_driver_nl80211_set_freq(bss, freq); | |
7355 | } | |
7356 | ||
7357 | ||
7358 | #if defined(HOSTAPD) || defined(CONFIG_AP) | |
7359 | ||
7360 | static inline int min_int(int a, int b) | |
7361 | { | |
7362 | if (a < b) | |
7363 | return a; | |
7364 | return b; | |
7365 | } | |
7366 | ||
7367 | ||
7368 | static int get_key_handler(struct nl_msg *msg, void *arg) | |
7369 | { | |
7370 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
7371 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
7372 | ||
7373 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
7374 | genlmsg_attrlen(gnlh, 0), NULL); | |
7375 | ||
7376 | /* | |
7377 | * TODO: validate the key index and mac address! | |
7378 | * Otherwise, there's a race condition as soon as | |
7379 | * the kernel starts sending key notifications. | |
7380 | */ | |
7381 | ||
7382 | if (tb[NL80211_ATTR_KEY_SEQ]) | |
7383 | memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), | |
7384 | min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); | |
7385 | return NL_SKIP; | |
7386 | } | |
7387 | ||
7388 | ||
7389 | static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, | |
7390 | int idx, u8 *seq) | |
7391 | { | |
7392 | struct i802_bss *bss = priv; | |
7393 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7394 | struct nl_msg *msg; | |
7395 | ||
7396 | msg = nlmsg_alloc(); | |
7397 | if (!msg) | |
7398 | return -ENOMEM; | |
7399 | ||
7400 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); | |
7401 | ||
7402 | if (addr) | |
7403 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
7404 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); | |
7405 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); | |
7406 | ||
7407 | memset(seq, 0, 6); | |
7408 | ||
7409 | return send_and_recv_msgs(drv, msg, get_key_handler, seq); | |
7410 | nla_put_failure: | |
7411 | nlmsg_free(msg); | |
7412 | return -ENOBUFS; | |
7413 | } | |
7414 | ||
7415 | ||
7416 | static int i802_set_rts(void *priv, int rts) | |
7417 | { | |
7418 | struct i802_bss *bss = priv; | |
7419 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7420 | struct nl_msg *msg; | |
7421 | int ret = -ENOBUFS; | |
7422 | u32 val; | |
7423 | ||
7424 | msg = nlmsg_alloc(); | |
7425 | if (!msg) | |
7426 | return -ENOMEM; | |
7427 | ||
7428 | if (rts >= 2347) | |
7429 | val = (u32) -1; | |
7430 | else | |
7431 | val = rts; | |
7432 | ||
7433 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); | |
7434 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
7435 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); | |
7436 | ||
7437 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
7438 | msg = NULL; | |
7439 | if (!ret) | |
7440 | return 0; | |
7441 | nla_put_failure: | |
7442 | nlmsg_free(msg); | |
7443 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " | |
7444 | "%d (%s)", rts, ret, strerror(-ret)); | |
7445 | return ret; | |
7446 | } | |
7447 | ||
7448 | ||
7449 | static int i802_set_frag(void *priv, int frag) | |
7450 | { | |
7451 | struct i802_bss *bss = priv; | |
7452 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7453 | struct nl_msg *msg; | |
7454 | int ret = -ENOBUFS; | |
7455 | u32 val; | |
7456 | ||
7457 | msg = nlmsg_alloc(); | |
7458 | if (!msg) | |
7459 | return -ENOMEM; | |
7460 | ||
7461 | if (frag >= 2346) | |
7462 | val = (u32) -1; | |
7463 | else | |
7464 | val = frag; | |
7465 | ||
7466 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); | |
7467 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
7468 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); | |
7469 | ||
7470 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
7471 | msg = NULL; | |
7472 | if (!ret) | |
7473 | return 0; | |
7474 | nla_put_failure: | |
7475 | nlmsg_free(msg); | |
7476 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " | |
7477 | "%d: %d (%s)", frag, ret, strerror(-ret)); | |
7478 | return ret; | |
7479 | } | |
7480 | ||
7481 | ||
7482 | static int i802_flush(void *priv) | |
7483 | { | |
7484 | struct i802_bss *bss = priv; | |
7485 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7486 | struct nl_msg *msg; | |
7487 | int res; | |
7488 | ||
7489 | msg = nlmsg_alloc(); | |
7490 | if (!msg) | |
7491 | return -1; | |
7492 | ||
7493 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); | |
7494 | ||
7495 | /* | |
7496 | * XXX: FIX! this needs to flush all VLANs too | |
7497 | */ | |
7498 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
7499 | if_nametoindex(bss->ifname)); | |
7500 | ||
7501 | res = send_and_recv_msgs(drv, msg, NULL, NULL); | |
7502 | if (res) { | |
7503 | wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " | |
7504 | "(%s)", res, strerror(-res)); | |
7505 | } | |
7506 | return res; | |
7507 | nla_put_failure: | |
7508 | nlmsg_free(msg); | |
7509 | return -ENOBUFS; | |
7510 | } | |
7511 | ||
7512 | #endif /* HOSTAPD || CONFIG_AP */ | |
7513 | ||
7514 | ||
7515 | static int get_sta_handler(struct nl_msg *msg, void *arg) | |
7516 | { | |
7517 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
7518 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
7519 | struct hostap_sta_driver_data *data = arg; | |
7520 | struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; | |
7521 | static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { | |
7522 | [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, | |
7523 | [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, | |
7524 | [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, | |
7525 | [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, | |
7526 | [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, | |
7527 | [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, | |
7528 | }; | |
7529 | ||
7530 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
7531 | genlmsg_attrlen(gnlh, 0), NULL); | |
7532 | ||
7533 | /* | |
7534 | * TODO: validate the interface and mac address! | |
7535 | * Otherwise, there's a race condition as soon as | |
7536 | * the kernel starts sending station notifications. | |
7537 | */ | |
7538 | ||
7539 | if (!tb[NL80211_ATTR_STA_INFO]) { | |
7540 | wpa_printf(MSG_DEBUG, "sta stats missing!"); | |
7541 | return NL_SKIP; | |
7542 | } | |
7543 | if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, | |
7544 | tb[NL80211_ATTR_STA_INFO], | |
7545 | stats_policy)) { | |
7546 | wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); | |
7547 | return NL_SKIP; | |
7548 | } | |
7549 | ||
7550 | if (stats[NL80211_STA_INFO_INACTIVE_TIME]) | |
7551 | data->inactive_msec = | |
7552 | nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); | |
7553 | if (stats[NL80211_STA_INFO_RX_BYTES]) | |
7554 | data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); | |
7555 | if (stats[NL80211_STA_INFO_TX_BYTES]) | |
7556 | data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); | |
7557 | if (stats[NL80211_STA_INFO_RX_PACKETS]) | |
7558 | data->rx_packets = | |
7559 | nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); | |
7560 | if (stats[NL80211_STA_INFO_TX_PACKETS]) | |
7561 | data->tx_packets = | |
7562 | nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); | |
7563 | if (stats[NL80211_STA_INFO_TX_FAILED]) | |
7564 | data->tx_retry_failed = | |
7565 | nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); | |
7566 | ||
7567 | return NL_SKIP; | |
7568 | } | |
7569 | ||
7570 | static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data, | |
7571 | const u8 *addr) | |
7572 | { | |
7573 | struct i802_bss *bss = priv; | |
7574 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7575 | struct nl_msg *msg; | |
7576 | ||
7577 | os_memset(data, 0, sizeof(*data)); | |
7578 | msg = nlmsg_alloc(); | |
7579 | if (!msg) | |
7580 | return -ENOMEM; | |
7581 | ||
7582 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); | |
7583 | ||
7584 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
7585 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
7586 | ||
7587 | return send_and_recv_msgs(drv, msg, get_sta_handler, data); | |
7588 | nla_put_failure: | |
7589 | nlmsg_free(msg); | |
7590 | return -ENOBUFS; | |
7591 | } | |
7592 | ||
7593 | ||
7594 | #if defined(HOSTAPD) || defined(CONFIG_AP) | |
7595 | ||
7596 | static int i802_set_tx_queue_params(void *priv, int queue, int aifs, | |
7597 | int cw_min, int cw_max, int burst_time) | |
7598 | { | |
7599 | struct i802_bss *bss = priv; | |
7600 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7601 | struct nl_msg *msg; | |
7602 | struct nlattr *txq, *params; | |
7603 | ||
7604 | msg = nlmsg_alloc(); | |
7605 | if (!msg) | |
7606 | return -1; | |
7607 | ||
7608 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); | |
7609 | ||
7610 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
7611 | ||
7612 | txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); | |
7613 | if (!txq) | |
7614 | goto nla_put_failure; | |
7615 | ||
7616 | /* We are only sending parameters for a single TXQ at a time */ | |
7617 | params = nla_nest_start(msg, 1); | |
7618 | if (!params) | |
7619 | goto nla_put_failure; | |
7620 | ||
7621 | switch (queue) { | |
7622 | case 0: | |
7623 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); | |
7624 | break; | |
7625 | case 1: | |
7626 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); | |
7627 | break; | |
7628 | case 2: | |
7629 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); | |
7630 | break; | |
7631 | case 3: | |
7632 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); | |
7633 | break; | |
7634 | } | |
7635 | /* Burst time is configured in units of 0.1 msec and TXOP parameter in | |
7636 | * 32 usec, so need to convert the value here. */ | |
7637 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); | |
7638 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); | |
7639 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); | |
7640 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); | |
7641 | ||
7642 | nla_nest_end(msg, params); | |
7643 | ||
7644 | nla_nest_end(msg, txq); | |
7645 | ||
7646 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
7647 | return 0; | |
7648 | msg = NULL; | |
7649 | nla_put_failure: | |
7650 | nlmsg_free(msg); | |
7651 | return -1; | |
7652 | } | |
7653 | ||
7654 | ||
7655 | static int i802_set_sta_vlan(void *priv, const u8 *addr, | |
7656 | const char *ifname, int vlan_id) | |
7657 | { | |
7658 | struct i802_bss *bss = priv; | |
7659 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7660 | struct nl_msg *msg; | |
7661 | int ret = -ENOBUFS; | |
7662 | ||
7663 | msg = nlmsg_alloc(); | |
7664 | if (!msg) | |
7665 | return -ENOMEM; | |
7666 | ||
7667 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); | |
7668 | ||
7669 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
7670 | if_nametoindex(bss->ifname)); | |
7671 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
7672 | NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, | |
7673 | if_nametoindex(ifname)); | |
7674 | ||
7675 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
7676 | msg = NULL; | |
7677 | if (ret < 0) { | |
7678 | wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" | |
7679 | MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", | |
7680 | MAC2STR(addr), ifname, vlan_id, ret, | |
7681 | strerror(-ret)); | |
7682 | } | |
7683 | nla_put_failure: | |
7684 | nlmsg_free(msg); | |
7685 | return ret; | |
7686 | } | |
7687 | ||
7688 | ||
7689 | static int i802_get_inact_sec(void *priv, const u8 *addr) | |
7690 | { | |
7691 | struct hostap_sta_driver_data data; | |
7692 | int ret; | |
7693 | ||
7694 | data.inactive_msec = (unsigned long) -1; | |
7695 | ret = i802_read_sta_data(priv, &data, addr); | |
7696 | if (ret || data.inactive_msec == (unsigned long) -1) | |
7697 | return -1; | |
7698 | return data.inactive_msec / 1000; | |
7699 | } | |
7700 | ||
7701 | ||
7702 | static int i802_sta_clear_stats(void *priv, const u8 *addr) | |
7703 | { | |
7704 | #if 0 | |
7705 | /* TODO */ | |
7706 | #endif | |
7707 | return 0; | |
7708 | } | |
7709 | ||
7710 | ||
7711 | static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, | |
7712 | int reason) | |
7713 | { | |
7714 | struct i802_bss *bss = priv; | |
7715 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7716 | struct ieee80211_mgmt mgmt; | |
7717 | ||
7718 | if (drv->device_ap_sme) | |
7719 | return wpa_driver_nl80211_sta_remove(bss, addr); | |
7720 | ||
7721 | memset(&mgmt, 0, sizeof(mgmt)); | |
7722 | mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
7723 | WLAN_FC_STYPE_DEAUTH); | |
7724 | memcpy(mgmt.da, addr, ETH_ALEN); | |
7725 | memcpy(mgmt.sa, own_addr, ETH_ALEN); | |
7726 | memcpy(mgmt.bssid, own_addr, ETH_ALEN); | |
7727 | mgmt.u.deauth.reason_code = host_to_le16(reason); | |
7728 | return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, | |
7729 | IEEE80211_HDRLEN + | |
7730 | sizeof(mgmt.u.deauth), 0); | |
7731 | } | |
7732 | ||
7733 | ||
7734 | static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, | |
7735 | int reason) | |
7736 | { | |
7737 | struct i802_bss *bss = priv; | |
7738 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7739 | struct ieee80211_mgmt mgmt; | |
7740 | ||
7741 | if (drv->device_ap_sme) | |
7742 | return wpa_driver_nl80211_sta_remove(bss, addr); | |
7743 | ||
7744 | memset(&mgmt, 0, sizeof(mgmt)); | |
7745 | mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
7746 | WLAN_FC_STYPE_DISASSOC); | |
7747 | memcpy(mgmt.da, addr, ETH_ALEN); | |
7748 | memcpy(mgmt.sa, own_addr, ETH_ALEN); | |
7749 | memcpy(mgmt.bssid, own_addr, ETH_ALEN); | |
7750 | mgmt.u.disassoc.reason_code = host_to_le16(reason); | |
7751 | return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, | |
7752 | IEEE80211_HDRLEN + | |
7753 | sizeof(mgmt.u.disassoc), 0); | |
7754 | } | |
7755 | ||
7756 | #endif /* HOSTAPD || CONFIG_AP */ | |
7757 | ||
7758 | #ifdef HOSTAPD | |
7759 | ||
7760 | static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
7761 | { | |
7762 | int i; | |
7763 | int *old; | |
7764 | ||
7765 | wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", | |
7766 | ifidx); | |
7767 | for (i = 0; i < drv->num_if_indices; i++) { | |
7768 | if (drv->if_indices[i] == 0) { | |
7769 | drv->if_indices[i] = ifidx; | |
7770 | return; | |
7771 | } | |
7772 | } | |
7773 | ||
7774 | if (drv->if_indices != drv->default_if_indices) | |
7775 | old = drv->if_indices; | |
7776 | else | |
7777 | old = NULL; | |
7778 | ||
7779 | drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, | |
7780 | sizeof(int)); | |
7781 | if (!drv->if_indices) { | |
7782 | if (!old) | |
7783 | drv->if_indices = drv->default_if_indices; | |
7784 | else | |
7785 | drv->if_indices = old; | |
7786 | wpa_printf(MSG_ERROR, "Failed to reallocate memory for " | |
7787 | "interfaces"); | |
7788 | wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); | |
7789 | return; | |
7790 | } else if (!old) | |
7791 | os_memcpy(drv->if_indices, drv->default_if_indices, | |
7792 | sizeof(drv->default_if_indices)); | |
7793 | drv->if_indices[drv->num_if_indices] = ifidx; | |
7794 | drv->num_if_indices++; | |
7795 | } | |
7796 | ||
7797 | ||
7798 | static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
7799 | { | |
7800 | int i; | |
7801 | ||
7802 | for (i = 0; i < drv->num_if_indices; i++) { | |
7803 | if (drv->if_indices[i] == ifidx) { | |
7804 | drv->if_indices[i] = 0; | |
7805 | break; | |
7806 | } | |
7807 | } | |
7808 | } | |
7809 | ||
7810 | ||
7811 | static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
7812 | { | |
7813 | int i; | |
7814 | ||
7815 | for (i = 0; i < drv->num_if_indices; i++) | |
7816 | if (drv->if_indices[i] == ifidx) | |
7817 | return 1; | |
7818 | ||
7819 | return 0; | |
7820 | } | |
7821 | ||
7822 | ||
7823 | static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, | |
7824 | const char *bridge_ifname) | |
7825 | { | |
7826 | struct i802_bss *bss = priv; | |
7827 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7828 | char name[IFNAMSIZ + 1]; | |
7829 | ||
7830 | os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); | |
7831 | wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR | |
7832 | " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); | |
7833 | if (val) { | |
7834 | if (!if_nametoindex(name)) { | |
7835 | if (nl80211_create_iface(drv, name, | |
7836 | NL80211_IFTYPE_AP_VLAN, | |
7837 | NULL, 1) < 0) | |
7838 | return -1; | |
7839 | if (bridge_ifname && | |
7840 | linux_br_add_if(drv->global->ioctl_sock, | |
7841 | bridge_ifname, name) < 0) | |
7842 | return -1; | |
7843 | } | |
7844 | if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { | |
7845 | wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " | |
7846 | "interface %s up", name); | |
7847 | } | |
7848 | return i802_set_sta_vlan(priv, addr, name, 0); | |
7849 | } else { | |
7850 | if (bridge_ifname) | |
7851 | linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, | |
7852 | name); | |
7853 | ||
7854 | i802_set_sta_vlan(priv, addr, bss->ifname, 0); | |
7855 | return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, | |
7856 | name); | |
7857 | } | |
7858 | } | |
7859 | ||
7860 | ||
7861 | static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) | |
7862 | { | |
7863 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
7864 | struct sockaddr_ll lladdr; | |
7865 | unsigned char buf[3000]; | |
7866 | int len; | |
7867 | socklen_t fromlen = sizeof(lladdr); | |
7868 | ||
7869 | len = recvfrom(sock, buf, sizeof(buf), 0, | |
7870 | (struct sockaddr *)&lladdr, &fromlen); | |
7871 | if (len < 0) { | |
7872 | perror("recv"); | |
7873 | return; | |
7874 | } | |
7875 | ||
7876 | if (have_ifidx(drv, lladdr.sll_ifindex)) | |
7877 | drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); | |
7878 | } | |
7879 | ||
7880 | ||
7881 | static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, | |
7882 | struct i802_bss *bss, | |
7883 | const char *brname, const char *ifname) | |
7884 | { | |
7885 | int ifindex; | |
7886 | char in_br[IFNAMSIZ]; | |
7887 | ||
7888 | os_strlcpy(bss->brname, brname, IFNAMSIZ); | |
7889 | ifindex = if_nametoindex(brname); | |
7890 | if (ifindex == 0) { | |
7891 | /* | |
7892 | * Bridge was configured, but the bridge device does | |
7893 | * not exist. Try to add it now. | |
7894 | */ | |
7895 | if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { | |
7896 | wpa_printf(MSG_ERROR, "nl80211: Failed to add the " | |
7897 | "bridge interface %s: %s", | |
7898 | brname, strerror(errno)); | |
7899 | return -1; | |
7900 | } | |
7901 | bss->added_bridge = 1; | |
7902 | add_ifidx(drv, if_nametoindex(brname)); | |
7903 | } | |
7904 | ||
7905 | if (linux_br_get(in_br, ifname) == 0) { | |
7906 | if (os_strcmp(in_br, brname) == 0) | |
7907 | return 0; /* already in the bridge */ | |
7908 | ||
7909 | wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " | |
7910 | "bridge %s", ifname, in_br); | |
7911 | if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < | |
7912 | 0) { | |
7913 | wpa_printf(MSG_ERROR, "nl80211: Failed to " | |
7914 | "remove interface %s from bridge " | |
7915 | "%s: %s", | |
7916 | ifname, brname, strerror(errno)); | |
7917 | return -1; | |
7918 | } | |
7919 | } | |
7920 | ||
7921 | wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", | |
7922 | ifname, brname); | |
7923 | if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { | |
7924 | wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " | |
7925 | "into bridge %s: %s", | |
7926 | ifname, brname, strerror(errno)); | |
7927 | return -1; | |
7928 | } | |
7929 | bss->added_if_into_bridge = 1; | |
7930 | ||
7931 | return 0; | |
7932 | } | |
7933 | ||
7934 | ||
7935 | static void *i802_init(struct hostapd_data *hapd, | |
7936 | struct wpa_init_params *params) | |
7937 | { | |
7938 | struct wpa_driver_nl80211_data *drv; | |
7939 | struct i802_bss *bss; | |
7940 | size_t i; | |
7941 | char brname[IFNAMSIZ]; | |
7942 | int ifindex, br_ifindex; | |
7943 | int br_added = 0; | |
7944 | ||
7945 | bss = wpa_driver_nl80211_init(hapd, params->ifname, | |
7946 | params->global_priv); | |
7947 | if (bss == NULL) | |
7948 | return NULL; | |
7949 | ||
7950 | drv = bss->drv; | |
7951 | drv->nlmode = NL80211_IFTYPE_AP; | |
7952 | drv->eapol_sock = -1; | |
7953 | ||
7954 | if (linux_br_get(brname, params->ifname) == 0) { | |
7955 | wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", | |
7956 | params->ifname, brname); | |
7957 | br_ifindex = if_nametoindex(brname); | |
7958 | } else { | |
7959 | brname[0] = '\0'; | |
7960 | br_ifindex = 0; | |
7961 | } | |
7962 | ||
7963 | drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); | |
7964 | drv->if_indices = drv->default_if_indices; | |
7965 | for (i = 0; i < params->num_bridge; i++) { | |
7966 | if (params->bridge[i]) { | |
7967 | ifindex = if_nametoindex(params->bridge[i]); | |
7968 | if (ifindex) | |
7969 | add_ifidx(drv, ifindex); | |
7970 | if (ifindex == br_ifindex) | |
7971 | br_added = 1; | |
7972 | } | |
7973 | } | |
7974 | if (!br_added && br_ifindex && | |
7975 | (params->num_bridge == 0 || !params->bridge[0])) | |
7976 | add_ifidx(drv, br_ifindex); | |
7977 | ||
7978 | /* start listening for EAPOL on the default AP interface */ | |
7979 | add_ifidx(drv, drv->ifindex); | |
7980 | ||
7981 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) | |
7982 | goto failed; | |
7983 | ||
7984 | if (params->bssid) { | |
7985 | if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, | |
7986 | params->bssid)) | |
7987 | goto failed; | |
7988 | } | |
7989 | ||
7990 | if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { | |
7991 | wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " | |
7992 | "into AP mode", bss->ifname); | |
7993 | goto failed; | |
7994 | } | |
7995 | ||
7996 | if (params->num_bridge && params->bridge[0] && | |
7997 | i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) | |
7998 | goto failed; | |
7999 | ||
8000 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) | |
8001 | goto failed; | |
8002 | ||
8003 | drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); | |
8004 | if (drv->eapol_sock < 0) { | |
8005 | perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); | |
8006 | goto failed; | |
8007 | } | |
8008 | ||
8009 | if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) | |
8010 | { | |
8011 | printf("Could not register read socket for eapol\n"); | |
8012 | goto failed; | |
8013 | } | |
8014 | ||
8015 | if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, | |
8016 | params->own_addr)) | |
8017 | goto failed; | |
8018 | ||
8019 | memcpy(bss->addr, params->own_addr, ETH_ALEN); | |
8020 | ||
8021 | return bss; | |
8022 | ||
8023 | failed: | |
8024 | wpa_driver_nl80211_deinit(bss); | |
8025 | return NULL; | |
8026 | } | |
8027 | ||
8028 | ||
8029 | static void i802_deinit(void *priv) | |
8030 | { | |
8031 | wpa_driver_nl80211_deinit(priv); | |
8032 | } | |
8033 | ||
8034 | #endif /* HOSTAPD */ | |
8035 | ||
8036 | ||
8037 | static enum nl80211_iftype wpa_driver_nl80211_if_type( | |
8038 | enum wpa_driver_if_type type) | |
8039 | { | |
8040 | switch (type) { | |
8041 | case WPA_IF_STATION: | |
8042 | return NL80211_IFTYPE_STATION; | |
8043 | case WPA_IF_P2P_CLIENT: | |
8044 | case WPA_IF_P2P_GROUP: | |
8045 | return NL80211_IFTYPE_P2P_CLIENT; | |
8046 | case WPA_IF_AP_VLAN: | |
8047 | return NL80211_IFTYPE_AP_VLAN; | |
8048 | case WPA_IF_AP_BSS: | |
8049 | return NL80211_IFTYPE_AP; | |
8050 | case WPA_IF_P2P_GO: | |
8051 | return NL80211_IFTYPE_P2P_GO; | |
8052 | } | |
8053 | return -1; | |
8054 | } | |
8055 | ||
8056 | ||
8057 | #ifdef CONFIG_P2P | |
8058 | ||
8059 | static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) | |
8060 | { | |
8061 | struct wpa_driver_nl80211_data *drv; | |
8062 | dl_list_for_each(drv, &global->interfaces, | |
8063 | struct wpa_driver_nl80211_data, list) { | |
8064 | if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) | |
8065 | return 1; | |
8066 | } | |
8067 | return 0; | |
8068 | } | |
8069 | ||
8070 | ||
8071 | static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, | |
8072 | u8 *new_addr) | |
8073 | { | |
8074 | unsigned int idx; | |
8075 | ||
8076 | if (!drv->global) | |
8077 | return -1; | |
8078 | ||
8079 | os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); | |
8080 | for (idx = 0; idx < 64; idx++) { | |
8081 | new_addr[0] = drv->first_bss.addr[0] | 0x02; | |
8082 | new_addr[0] ^= idx << 2; | |
8083 | if (!nl80211_addr_in_use(drv->global, new_addr)) | |
8084 | break; | |
8085 | } | |
8086 | if (idx == 64) | |
8087 | return -1; | |
8088 | ||
8089 | wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " | |
8090 | MACSTR, MAC2STR(new_addr)); | |
8091 | ||
8092 | return 0; | |
8093 | } | |
8094 | ||
8095 | #endif /* CONFIG_P2P */ | |
8096 | ||
8097 | ||
8098 | static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, | |
8099 | const char *ifname, const u8 *addr, | |
8100 | void *bss_ctx, void **drv_priv, | |
8101 | char *force_ifname, u8 *if_addr, | |
8102 | const char *bridge) | |
8103 | { | |
8104 | struct i802_bss *bss = priv; | |
8105 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8106 | int ifidx; | |
8107 | #ifdef HOSTAPD | |
8108 | struct i802_bss *new_bss = NULL; | |
8109 | ||
8110 | if (type == WPA_IF_AP_BSS) { | |
8111 | new_bss = os_zalloc(sizeof(*new_bss)); | |
8112 | if (new_bss == NULL) | |
8113 | return -1; | |
8114 | } | |
8115 | #endif /* HOSTAPD */ | |
8116 | ||
8117 | if (addr) | |
8118 | os_memcpy(if_addr, addr, ETH_ALEN); | |
8119 | ifidx = nl80211_create_iface(drv, ifname, | |
8120 | wpa_driver_nl80211_if_type(type), addr, | |
8121 | 0); | |
8122 | if (ifidx < 0) { | |
8123 | #ifdef HOSTAPD | |
8124 | os_free(new_bss); | |
8125 | #endif /* HOSTAPD */ | |
8126 | return -1; | |
8127 | } | |
8128 | ||
8129 | if (!addr && | |
8130 | linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, | |
8131 | if_addr) < 0) { | |
8132 | nl80211_remove_iface(drv, ifidx); | |
8133 | return -1; | |
8134 | } | |
8135 | ||
8136 | #ifdef CONFIG_P2P | |
8137 | if (!addr && | |
8138 | (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || | |
8139 | type == WPA_IF_P2P_GO)) { | |
8140 | /* Enforce unique P2P Interface Address */ | |
8141 | u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN]; | |
8142 | ||
8143 | if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, | |
8144 | own_addr) < 0 || | |
8145 | linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, | |
8146 | new_addr) < 0) { | |
8147 | nl80211_remove_iface(drv, ifidx); | |
8148 | return -1; | |
8149 | } | |
8150 | if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) { | |
8151 | wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " | |
8152 | "for P2P group interface"); | |
8153 | if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { | |
8154 | nl80211_remove_iface(drv, ifidx); | |
8155 | return -1; | |
8156 | } | |
8157 | if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, | |
8158 | new_addr) < 0) { | |
8159 | nl80211_remove_iface(drv, ifidx); | |
8160 | return -1; | |
8161 | } | |
8162 | } | |
8163 | os_memcpy(if_addr, new_addr, ETH_ALEN); | |
8164 | } | |
8165 | #endif /* CONFIG_P2P */ | |
8166 | ||
8167 | #ifdef HOSTAPD | |
8168 | if (bridge && | |
8169 | i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { | |
8170 | wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " | |
8171 | "interface %s to a bridge %s", ifname, bridge); | |
8172 | nl80211_remove_iface(drv, ifidx); | |
8173 | os_free(new_bss); | |
8174 | return -1; | |
8175 | } | |
8176 | ||
8177 | if (type == WPA_IF_AP_BSS) { | |
8178 | if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) | |
8179 | { | |
8180 | nl80211_remove_iface(drv, ifidx); | |
8181 | os_free(new_bss); | |
8182 | return -1; | |
8183 | } | |
8184 | os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); | |
8185 | os_memcpy(new_bss->addr, if_addr, ETH_ALEN); | |
8186 | new_bss->ifindex = ifidx; | |
8187 | new_bss->drv = drv; | |
8188 | new_bss->next = drv->first_bss.next; | |
8189 | new_bss->freq = drv->first_bss.freq; | |
8190 | new_bss->ctx = bss_ctx; | |
8191 | drv->first_bss.next = new_bss; | |
8192 | if (drv_priv) | |
8193 | *drv_priv = new_bss; | |
8194 | nl80211_init_bss(new_bss); | |
8195 | ||
8196 | /* Subscribe management frames for this WPA_IF_AP_BSS */ | |
8197 | if (nl80211_setup_ap(new_bss)) | |
8198 | return -1; | |
8199 | } | |
8200 | #endif /* HOSTAPD */ | |
8201 | ||
8202 | if (drv->global) | |
8203 | drv->global->if_add_ifindex = ifidx; | |
8204 | ||
8205 | return 0; | |
8206 | } | |
8207 | ||
8208 | ||
8209 | static int wpa_driver_nl80211_if_remove(void *priv, | |
8210 | enum wpa_driver_if_type type, | |
8211 | const char *ifname) | |
8212 | { | |
8213 | struct i802_bss *bss = priv; | |
8214 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8215 | int ifindex = if_nametoindex(ifname); | |
8216 | ||
8217 | wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", | |
8218 | __func__, type, ifname, ifindex); | |
8219 | if (ifindex <= 0) | |
8220 | return -1; | |
8221 | ||
8222 | nl80211_remove_iface(drv, ifindex); | |
8223 | ||
8224 | #ifdef HOSTAPD | |
8225 | if (type != WPA_IF_AP_BSS) | |
8226 | return 0; | |
8227 | ||
8228 | if (bss->added_if_into_bridge) { | |
8229 | if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, | |
8230 | bss->ifname) < 0) | |
8231 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " | |
8232 | "interface %s from bridge %s: %s", | |
8233 | bss->ifname, bss->brname, strerror(errno)); | |
8234 | } | |
8235 | if (bss->added_bridge) { | |
8236 | if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) | |
8237 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " | |
8238 | "bridge %s: %s", | |
8239 | bss->brname, strerror(errno)); | |
8240 | } | |
8241 | ||
8242 | if (bss != &drv->first_bss) { | |
8243 | struct i802_bss *tbss; | |
8244 | ||
8245 | for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { | |
8246 | if (tbss->next == bss) { | |
8247 | tbss->next = bss->next; | |
8248 | /* Unsubscribe management frames */ | |
8249 | nl80211_teardown_ap(bss); | |
8250 | nl80211_destroy_bss(bss); | |
8251 | os_free(bss); | |
8252 | bss = NULL; | |
8253 | break; | |
8254 | } | |
8255 | } | |
8256 | if (bss) | |
8257 | wpa_printf(MSG_INFO, "nl80211: %s - could not find " | |
8258 | "BSS %p in the list", __func__, bss); | |
8259 | } | |
8260 | #endif /* HOSTAPD */ | |
8261 | ||
8262 | return 0; | |
8263 | } | |
8264 | ||
8265 | ||
8266 | static int cookie_handler(struct nl_msg *msg, void *arg) | |
8267 | { | |
8268 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
8269 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
8270 | u64 *cookie = arg; | |
8271 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
8272 | genlmsg_attrlen(gnlh, 0), NULL); | |
8273 | if (tb[NL80211_ATTR_COOKIE]) | |
8274 | *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); | |
8275 | return NL_SKIP; | |
8276 | } | |
8277 | ||
8278 | ||
8279 | static int nl80211_send_frame_cmd(struct i802_bss *bss, | |
8280 | unsigned int freq, unsigned int wait, | |
8281 | const u8 *buf, size_t buf_len, | |
8282 | u64 *cookie_out, int no_cck, int no_ack, | |
8283 | int offchanok) | |
8284 | { | |
8285 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8286 | struct nl_msg *msg; | |
8287 | u64 cookie; | |
8288 | int ret = -1; | |
8289 | ||
8290 | msg = nlmsg_alloc(); | |
8291 | if (!msg) | |
8292 | return -1; | |
8293 | ||
8294 | wpa_printf(MSG_DEBUG, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " | |
8295 | "no_ack=%d offchanok=%d", | |
8296 | freq, wait, no_cck, no_ack, offchanok); | |
8297 | nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); | |
8298 | ||
8299 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
8300 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
8301 | if (wait) | |
8302 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); | |
8303 | if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) | |
8304 | NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); | |
8305 | if (no_cck) | |
8306 | NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); | |
8307 | if (no_ack) | |
8308 | NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); | |
8309 | ||
8310 | NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); | |
8311 | ||
8312 | cookie = 0; | |
8313 | ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); | |
8314 | msg = NULL; | |
8315 | if (ret) { | |
8316 | wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " | |
8317 | "(%s) (freq=%u wait=%u)", ret, strerror(-ret), | |
8318 | freq, wait); | |
8319 | goto nla_put_failure; | |
8320 | } | |
8321 | wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; " | |
8322 | "cookie 0x%llx", no_ack ? " (no ACK)" : "", | |
8323 | (long long unsigned int) cookie); | |
8324 | ||
8325 | if (cookie_out) | |
8326 | *cookie_out = no_ack ? (u64) -1 : cookie; | |
8327 | ||
8328 | nla_put_failure: | |
8329 | nlmsg_free(msg); | |
8330 | return ret; | |
8331 | } | |
8332 | ||
8333 | ||
8334 | static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq, | |
8335 | unsigned int wait_time, | |
8336 | const u8 *dst, const u8 *src, | |
8337 | const u8 *bssid, | |
8338 | const u8 *data, size_t data_len, | |
8339 | int no_cck) | |
8340 | { | |
8341 | struct i802_bss *bss = priv; | |
8342 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8343 | int ret = -1; | |
8344 | u8 *buf; | |
8345 | struct ieee80211_hdr *hdr; | |
8346 | ||
8347 | wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " | |
8348 | "freq=%u MHz wait=%d ms no_cck=%d)", | |
8349 | drv->ifindex, freq, wait_time, no_cck); | |
8350 | ||
8351 | buf = os_zalloc(24 + data_len); | |
8352 | if (buf == NULL) | |
8353 | return ret; | |
8354 | os_memcpy(buf + 24, data, data_len); | |
8355 | hdr = (struct ieee80211_hdr *) buf; | |
8356 | hdr->frame_control = | |
8357 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); | |
8358 | os_memcpy(hdr->addr1, dst, ETH_ALEN); | |
8359 | os_memcpy(hdr->addr2, src, ETH_ALEN); | |
8360 | os_memcpy(hdr->addr3, bssid, ETH_ALEN); | |
8361 | ||
8362 | if (is_ap_interface(drv->nlmode)) | |
8363 | ret = wpa_driver_nl80211_send_mlme_freq(priv, buf, | |
8364 | 24 + data_len, | |
8365 | 0, freq, no_cck, 1, | |
8366 | wait_time); | |
8367 | else | |
8368 | ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, | |
8369 | 24 + data_len, | |
8370 | &drv->send_action_cookie, | |
8371 | no_cck, 0, 1); | |
8372 | ||
8373 | os_free(buf); | |
8374 | return ret; | |
8375 | } | |
8376 | ||
8377 | ||
8378 | static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) | |
8379 | { | |
8380 | struct i802_bss *bss = priv; | |
8381 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8382 | struct nl_msg *msg; | |
8383 | int ret; | |
8384 | ||
8385 | msg = nlmsg_alloc(); | |
8386 | if (!msg) | |
8387 | return; | |
8388 | ||
8389 | nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); | |
8390 | ||
8391 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
8392 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); | |
8393 | ||
8394 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
8395 | msg = NULL; | |
8396 | if (ret) | |
8397 | wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " | |
8398 | "(%s)", ret, strerror(-ret)); | |
8399 | ||
8400 | nla_put_failure: | |
8401 | nlmsg_free(msg); | |
8402 | } | |
8403 | ||
8404 | ||
8405 | static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, | |
8406 | unsigned int duration) | |
8407 | { | |
8408 | struct i802_bss *bss = priv; | |
8409 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8410 | struct nl_msg *msg; | |
8411 | int ret; | |
8412 | u64 cookie; | |
8413 | ||
8414 | msg = nlmsg_alloc(); | |
8415 | if (!msg) | |
8416 | return -1; | |
8417 | ||
8418 | nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); | |
8419 | ||
8420 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
8421 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
8422 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
8423 | ||
8424 | cookie = 0; | |
8425 | ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); | |
8426 | msg = NULL; | |
8427 | if (ret == 0) { | |
8428 | wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " | |
8429 | "0x%llx for freq=%u MHz duration=%u", | |
8430 | (long long unsigned int) cookie, freq, duration); | |
8431 | drv->remain_on_chan_cookie = cookie; | |
8432 | drv->pending_remain_on_chan = 1; | |
8433 | return 0; | |
8434 | } | |
8435 | wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " | |
8436 | "(freq=%d duration=%u): %d (%s)", | |
8437 | freq, duration, ret, strerror(-ret)); | |
8438 | nla_put_failure: | |
8439 | nlmsg_free(msg); | |
8440 | return -1; | |
8441 | } | |
8442 | ||
8443 | ||
8444 | static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) | |
8445 | { | |
8446 | struct i802_bss *bss = priv; | |
8447 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8448 | struct nl_msg *msg; | |
8449 | int ret; | |
8450 | ||
8451 | if (!drv->pending_remain_on_chan) { | |
8452 | wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " | |
8453 | "to cancel"); | |
8454 | return -1; | |
8455 | } | |
8456 | ||
8457 | wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " | |
8458 | "0x%llx", | |
8459 | (long long unsigned int) drv->remain_on_chan_cookie); | |
8460 | ||
8461 | msg = nlmsg_alloc(); | |
8462 | if (!msg) | |
8463 | return -1; | |
8464 | ||
8465 | nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); | |
8466 | ||
8467 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
8468 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); | |
8469 | ||
8470 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
8471 | msg = NULL; | |
8472 | if (ret == 0) | |
8473 | return 0; | |
8474 | wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " | |
8475 | "%d (%s)", ret, strerror(-ret)); | |
8476 | nla_put_failure: | |
8477 | nlmsg_free(msg); | |
8478 | return -1; | |
8479 | } | |
8480 | ||
8481 | ||
8482 | static int wpa_driver_nl80211_probe_req_report(void *priv, int report) | |
8483 | { | |
8484 | struct i802_bss *bss = priv; | |
8485 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8486 | ||
8487 | if (!report) { | |
8488 | if (bss->nl_preq && drv->device_ap_sme && | |
8489 | is_ap_interface(drv->nlmode)) { | |
8490 | /* | |
8491 | * Do not disable Probe Request reporting that was | |
8492 | * enabled in nl80211_setup_ap(). | |
8493 | */ | |
8494 | wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " | |
8495 | "Probe Request reporting nl_preq=%p while " | |
8496 | "in AP mode", bss->nl_preq); | |
8497 | } else if (bss->nl_preq) { | |
8498 | wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " | |
8499 | "reporting nl_preq=%p", bss->nl_preq); | |
8500 | eloop_unregister_read_sock( | |
8501 | nl_socket_get_fd(bss->nl_preq)); | |
8502 | nl_destroy_handles(&bss->nl_preq); | |
8503 | } | |
8504 | return 0; | |
8505 | } | |
8506 | ||
8507 | if (bss->nl_preq) { | |
8508 | wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " | |
8509 | "already on! nl_preq=%p", bss->nl_preq); | |
8510 | return 0; | |
8511 | } | |
8512 | ||
8513 | bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); | |
8514 | if (bss->nl_preq == NULL) | |
8515 | return -1; | |
8516 | wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " | |
8517 | "reporting nl_preq=%p", bss->nl_preq); | |
8518 | ||
8519 | if (nl80211_register_frame(bss, bss->nl_preq, | |
8520 | (WLAN_FC_TYPE_MGMT << 2) | | |
8521 | (WLAN_FC_STYPE_PROBE_REQ << 4), | |
8522 | NULL, 0) < 0) | |
8523 | goto out_err; | |
8524 | ||
8525 | eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), | |
8526 | wpa_driver_nl80211_event_receive, bss->nl_cb, | |
8527 | bss->nl_preq); | |
8528 | ||
8529 | return 0; | |
8530 | ||
8531 | out_err: | |
8532 | nl_destroy_handles(&bss->nl_preq); | |
8533 | return -1; | |
8534 | } | |
8535 | ||
8536 | ||
8537 | static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, | |
8538 | int ifindex, int disabled) | |
8539 | { | |
8540 | struct nl_msg *msg; | |
8541 | struct nlattr *bands, *band; | |
8542 | int ret; | |
8543 | ||
8544 | msg = nlmsg_alloc(); | |
8545 | if (!msg) | |
8546 | return -1; | |
8547 | ||
8548 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); | |
8549 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
8550 | ||
8551 | bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); | |
8552 | if (!bands) | |
8553 | goto nla_put_failure; | |
8554 | ||
8555 | /* | |
8556 | * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything | |
8557 | * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS | |
8558 | * rates. All 5 GHz rates are left enabled. | |
8559 | */ | |
8560 | band = nla_nest_start(msg, NL80211_BAND_2GHZ); | |
8561 | if (!band) | |
8562 | goto nla_put_failure; | |
8563 | if (disabled) { | |
8564 | NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, | |
8565 | "\x0c\x12\x18\x24\x30\x48\x60\x6c"); | |
8566 | } | |
8567 | nla_nest_end(msg, band); | |
8568 | ||
8569 | nla_nest_end(msg, bands); | |
8570 | ||
8571 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
8572 | msg = NULL; | |
8573 | if (ret) { | |
8574 | wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " | |
8575 | "(%s)", ret, strerror(-ret)); | |
8576 | } else | |
8577 | drv->disabled_11b_rates = disabled; | |
8578 | ||
8579 | return ret; | |
8580 | ||
8581 | nla_put_failure: | |
8582 | nlmsg_free(msg); | |
8583 | return -1; | |
8584 | } | |
8585 | ||
8586 | ||
8587 | static int wpa_driver_nl80211_deinit_ap(void *priv) | |
8588 | { | |
8589 | struct i802_bss *bss = priv; | |
8590 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8591 | if (!is_ap_interface(drv->nlmode)) | |
8592 | return -1; | |
8593 | wpa_driver_nl80211_del_beacon(drv); | |
8594 | return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); | |
8595 | } | |
8596 | ||
8597 | ||
8598 | static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) | |
8599 | { | |
8600 | struct i802_bss *bss = priv; | |
8601 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8602 | if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) | |
8603 | return -1; | |
8604 | return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); | |
8605 | } | |
8606 | ||
8607 | ||
8608 | static void wpa_driver_nl80211_resume(void *priv) | |
8609 | { | |
8610 | struct i802_bss *bss = priv; | |
8611 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8612 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { | |
8613 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on " | |
8614 | "resume event"); | |
8615 | } | |
8616 | } | |
8617 | ||
8618 | ||
8619 | static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, | |
8620 | const u8 *ies, size_t ies_len) | |
8621 | { | |
8622 | struct i802_bss *bss = priv; | |
8623 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8624 | int ret; | |
8625 | u8 *data, *pos; | |
8626 | size_t data_len; | |
8627 | const u8 *own_addr = bss->addr; | |
8628 | ||
8629 | if (action != 1) { | |
8630 | wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " | |
8631 | "action %d", action); | |
8632 | return -1; | |
8633 | } | |
8634 | ||
8635 | /* | |
8636 | * Action frame payload: | |
8637 | * Category[1] = 6 (Fast BSS Transition) | |
8638 | * Action[1] = 1 (Fast BSS Transition Request) | |
8639 | * STA Address | |
8640 | * Target AP Address | |
8641 | * FT IEs | |
8642 | */ | |
8643 | ||
8644 | data_len = 2 + 2 * ETH_ALEN + ies_len; | |
8645 | data = os_malloc(data_len); | |
8646 | if (data == NULL) | |
8647 | return -1; | |
8648 | pos = data; | |
8649 | *pos++ = 0x06; /* FT Action category */ | |
8650 | *pos++ = action; | |
8651 | os_memcpy(pos, own_addr, ETH_ALEN); | |
8652 | pos += ETH_ALEN; | |
8653 | os_memcpy(pos, target_ap, ETH_ALEN); | |
8654 | pos += ETH_ALEN; | |
8655 | os_memcpy(pos, ies, ies_len); | |
8656 | ||
8657 | ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, | |
8658 | drv->bssid, own_addr, drv->bssid, | |
8659 | data, data_len, 0); | |
8660 | os_free(data); | |
8661 | ||
8662 | return ret; | |
8663 | } | |
8664 | ||
8665 | ||
8666 | static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) | |
8667 | { | |
8668 | struct i802_bss *bss = priv; | |
8669 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8670 | struct nl_msg *msg, *cqm = NULL; | |
8671 | int ret = -1; | |
8672 | ||
8673 | wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " | |
8674 | "hysteresis=%d", threshold, hysteresis); | |
8675 | ||
8676 | msg = nlmsg_alloc(); | |
8677 | if (!msg) | |
8678 | return -1; | |
8679 | ||
8680 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); | |
8681 | ||
8682 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
8683 | ||
8684 | cqm = nlmsg_alloc(); | |
8685 | if (cqm == NULL) | |
8686 | goto nla_put_failure; | |
8687 | ||
8688 | NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold); | |
8689 | NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); | |
8690 | if (nla_put_nested(msg, NL80211_ATTR_CQM, cqm) < 0) | |
8691 | goto nla_put_failure; | |
8692 | ||
8693 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
8694 | msg = NULL; | |
8695 | ||
8696 | nla_put_failure: | |
8697 | nlmsg_free(cqm); | |
8698 | nlmsg_free(msg); | |
8699 | return ret; | |
8700 | } | |
8701 | ||
8702 | ||
8703 | static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) | |
8704 | { | |
8705 | struct i802_bss *bss = priv; | |
8706 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8707 | int res; | |
8708 | ||
8709 | os_memset(si, 0, sizeof(*si)); | |
8710 | res = nl80211_get_link_signal(drv, si); | |
8711 | if (res != 0) | |
8712 | return res; | |
8713 | ||
8714 | return nl80211_get_link_noise(drv, si); | |
8715 | } | |
8716 | ||
8717 | ||
8718 | static int wpa_driver_nl80211_shared_freq(void *priv) | |
8719 | { | |
8720 | struct i802_bss *bss = priv; | |
8721 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8722 | struct wpa_driver_nl80211_data *driver; | |
8723 | int freq = 0; | |
8724 | ||
8725 | /* | |
8726 | * If the same PHY is in connected state with some other interface, | |
8727 | * then retrieve the assoc freq. | |
8728 | */ | |
8729 | wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", | |
8730 | drv->phyname); | |
8731 | ||
8732 | dl_list_for_each(driver, &drv->global->interfaces, | |
8733 | struct wpa_driver_nl80211_data, list) { | |
8734 | if (drv == driver || | |
8735 | os_strcmp(drv->phyname, driver->phyname) != 0 || | |
8736 | !driver->associated) | |
8737 | continue; | |
8738 | ||
8739 | wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " | |
8740 | MACSTR, | |
8741 | driver->phyname, driver->first_bss.ifname, | |
8742 | MAC2STR(driver->first_bss.addr)); | |
8743 | if (is_ap_interface(driver->nlmode)) | |
8744 | freq = driver->first_bss.freq; | |
8745 | else | |
8746 | freq = nl80211_get_assoc_freq(driver); | |
8747 | wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", | |
8748 | drv->phyname, freq); | |
8749 | } | |
8750 | ||
8751 | if (!freq) | |
8752 | wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " | |
8753 | "PHY (%s) in associated state", drv->phyname); | |
8754 | ||
8755 | return freq; | |
8756 | } | |
8757 | ||
8758 | ||
8759 | static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, | |
8760 | int encrypt) | |
8761 | { | |
8762 | struct i802_bss *bss = priv; | |
8763 | return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, | |
8764 | 0, 0, 0, 0); | |
8765 | } | |
8766 | ||
8767 | ||
8768 | static int nl80211_set_param(void *priv, const char *param) | |
8769 | { | |
8770 | wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); | |
8771 | if (param == NULL) | |
8772 | return 0; | |
8773 | ||
8774 | #ifdef CONFIG_P2P | |
8775 | if (os_strstr(param, "use_p2p_group_interface=1")) { | |
8776 | struct i802_bss *bss = priv; | |
8777 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8778 | ||
8779 | wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " | |
8780 | "interface"); | |
8781 | drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; | |
8782 | drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; | |
8783 | } | |
8784 | #endif /* CONFIG_P2P */ | |
8785 | ||
8786 | return 0; | |
8787 | } | |
8788 | ||
8789 | ||
8790 | static void * nl80211_global_init(void) | |
8791 | { | |
8792 | struct nl80211_global *global; | |
8793 | struct netlink_config *cfg; | |
8794 | ||
8795 | global = os_zalloc(sizeof(*global)); | |
8796 | if (global == NULL) | |
8797 | return NULL; | |
8798 | global->ioctl_sock = -1; | |
8799 | dl_list_init(&global->interfaces); | |
8800 | global->if_add_ifindex = -1; | |
8801 | ||
8802 | cfg = os_zalloc(sizeof(*cfg)); | |
8803 | if (cfg == NULL) | |
8804 | goto err; | |
8805 | ||
8806 | cfg->ctx = global; | |
8807 | cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; | |
8808 | cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; | |
8809 | global->netlink = netlink_init(cfg); | |
8810 | if (global->netlink == NULL) { | |
8811 | os_free(cfg); | |
8812 | goto err; | |
8813 | } | |
8814 | ||
8815 | if (wpa_driver_nl80211_init_nl_global(global) < 0) | |
8816 | goto err; | |
8817 | ||
8818 | global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); | |
8819 | if (global->ioctl_sock < 0) { | |
8820 | perror("socket(PF_INET,SOCK_DGRAM)"); | |
8821 | goto err; | |
8822 | } | |
8823 | ||
8824 | return global; | |
8825 | ||
8826 | err: | |
8827 | nl80211_global_deinit(global); | |
8828 | return NULL; | |
8829 | } | |
8830 | ||
8831 | ||
8832 | static void nl80211_global_deinit(void *priv) | |
8833 | { | |
8834 | struct nl80211_global *global = priv; | |
8835 | if (global == NULL) | |
8836 | return; | |
8837 | if (!dl_list_empty(&global->interfaces)) { | |
8838 | wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " | |
8839 | "nl80211_global_deinit", | |
8840 | dl_list_len(&global->interfaces)); | |
8841 | } | |
8842 | ||
8843 | if (global->netlink) | |
8844 | netlink_deinit(global->netlink); | |
8845 | ||
8846 | nl_destroy_handles(&global->nl); | |
8847 | ||
8848 | if (global->nl_event) { | |
8849 | eloop_unregister_read_sock( | |
8850 | nl_socket_get_fd(global->nl_event)); | |
8851 | nl_destroy_handles(&global->nl_event); | |
8852 | } | |
8853 | ||
8854 | nl_cb_put(global->nl_cb); | |
8855 | ||
8856 | if (global->ioctl_sock >= 0) | |
8857 | close(global->ioctl_sock); | |
8858 | ||
8859 | os_free(global); | |
8860 | } | |
8861 | ||
8862 | ||
8863 | static const char * nl80211_get_radio_name(void *priv) | |
8864 | { | |
8865 | struct i802_bss *bss = priv; | |
8866 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8867 | return drv->phyname; | |
8868 | } | |
8869 | ||
8870 | ||
8871 | static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, | |
8872 | const u8 *pmkid) | |
8873 | { | |
8874 | struct nl_msg *msg; | |
8875 | ||
8876 | msg = nlmsg_alloc(); | |
8877 | if (!msg) | |
8878 | return -ENOMEM; | |
8879 | ||
8880 | nl80211_cmd(bss->drv, msg, 0, cmd); | |
8881 | ||
8882 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
8883 | if (pmkid) | |
8884 | NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); | |
8885 | if (bssid) | |
8886 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
8887 | ||
8888 | return send_and_recv_msgs(bss->drv, msg, NULL, NULL); | |
8889 | nla_put_failure: | |
8890 | nlmsg_free(msg); | |
8891 | return -ENOBUFS; | |
8892 | } | |
8893 | ||
8894 | ||
8895 | static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) | |
8896 | { | |
8897 | struct i802_bss *bss = priv; | |
8898 | wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); | |
8899 | return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); | |
8900 | } | |
8901 | ||
8902 | ||
8903 | static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) | |
8904 | { | |
8905 | struct i802_bss *bss = priv; | |
8906 | wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, | |
8907 | MAC2STR(bssid)); | |
8908 | return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); | |
8909 | } | |
8910 | ||
8911 | ||
8912 | static int nl80211_flush_pmkid(void *priv) | |
8913 | { | |
8914 | struct i802_bss *bss = priv; | |
8915 | wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); | |
8916 | return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); | |
8917 | } | |
8918 | ||
8919 | ||
8920 | static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, | |
8921 | const u8 *replay_ctr) | |
8922 | { | |
8923 | struct i802_bss *bss = priv; | |
8924 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8925 | struct nlattr *replay_nested; | |
8926 | struct nl_msg *msg; | |
8927 | ||
8928 | msg = nlmsg_alloc(); | |
8929 | if (!msg) | |
8930 | return; | |
8931 | ||
8932 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
8933 | ||
8934 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
8935 | ||
8936 | replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
8937 | if (!replay_nested) | |
8938 | goto nla_put_failure; | |
8939 | ||
8940 | NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); | |
8941 | NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); | |
8942 | NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, | |
8943 | replay_ctr); | |
8944 | ||
8945 | nla_nest_end(msg, replay_nested); | |
8946 | ||
8947 | send_and_recv_msgs(drv, msg, NULL, NULL); | |
8948 | return; | |
8949 | nla_put_failure: | |
8950 | nlmsg_free(msg); | |
8951 | } | |
8952 | ||
8953 | ||
8954 | static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, | |
8955 | const u8 *addr, int qos) | |
8956 | { | |
8957 | /* send data frame to poll STA and check whether | |
8958 | * this frame is ACKed */ | |
8959 | struct { | |
8960 | struct ieee80211_hdr hdr; | |
8961 | u16 qos_ctl; | |
8962 | } STRUCT_PACKED nulldata; | |
8963 | size_t size; | |
8964 | ||
8965 | /* Send data frame to poll STA and check whether this frame is ACKed */ | |
8966 | ||
8967 | os_memset(&nulldata, 0, sizeof(nulldata)); | |
8968 | ||
8969 | if (qos) { | |
8970 | nulldata.hdr.frame_control = | |
8971 | IEEE80211_FC(WLAN_FC_TYPE_DATA, | |
8972 | WLAN_FC_STYPE_QOS_NULL); | |
8973 | size = sizeof(nulldata); | |
8974 | } else { | |
8975 | nulldata.hdr.frame_control = | |
8976 | IEEE80211_FC(WLAN_FC_TYPE_DATA, | |
8977 | WLAN_FC_STYPE_NULLFUNC); | |
8978 | size = sizeof(struct ieee80211_hdr); | |
8979 | } | |
8980 | ||
8981 | nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); | |
8982 | os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); | |
8983 | os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); | |
8984 | os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); | |
8985 | ||
8986 | if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0) < 0) | |
8987 | wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " | |
8988 | "send poll frame"); | |
8989 | } | |
8990 | ||
8991 | static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, | |
8992 | int qos) | |
8993 | { | |
8994 | struct i802_bss *bss = priv; | |
8995 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8996 | struct nl_msg *msg; | |
8997 | ||
8998 | if (!drv->poll_command_supported) { | |
8999 | nl80211_send_null_frame(bss, own_addr, addr, qos); | |
9000 | return; | |
9001 | } | |
9002 | ||
9003 | msg = nlmsg_alloc(); | |
9004 | if (!msg) | |
9005 | return; | |
9006 | ||
9007 | nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); | |
9008 | ||
9009 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
9010 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
9011 | ||
9012 | send_and_recv_msgs(drv, msg, NULL, NULL); | |
9013 | return; | |
9014 | nla_put_failure: | |
9015 | nlmsg_free(msg); | |
9016 | } | |
9017 | ||
9018 | ||
9019 | static int nl80211_set_power_save(struct i802_bss *bss, int enabled) | |
9020 | { | |
9021 | struct nl_msg *msg; | |
9022 | ||
9023 | msg = nlmsg_alloc(); | |
9024 | if (!msg) | |
9025 | return -ENOMEM; | |
9026 | ||
9027 | nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); | |
9028 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
9029 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, | |
9030 | enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); | |
9031 | return send_and_recv_msgs(bss->drv, msg, NULL, NULL); | |
9032 | nla_put_failure: | |
9033 | nlmsg_free(msg); | |
9034 | return -ENOBUFS; | |
9035 | } | |
9036 | ||
9037 | ||
9038 | static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, | |
9039 | int ctwindow) | |
9040 | { | |
9041 | struct i802_bss *bss = priv; | |
9042 | ||
9043 | wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " | |
9044 | "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); | |
9045 | ||
9046 | if (opp_ps != -1 || ctwindow != -1) | |
9047 | return -1; /* Not yet supported */ | |
9048 | ||
9049 | if (legacy_ps == -1) | |
9050 | return 0; | |
9051 | if (legacy_ps != 0 && legacy_ps != 1) | |
9052 | return -1; /* Not yet supported */ | |
9053 | ||
9054 | return nl80211_set_power_save(bss, legacy_ps); | |
9055 | } | |
9056 | ||
9057 | ||
9058 | #ifdef CONFIG_TDLS | |
9059 | ||
9060 | static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, | |
9061 | u8 dialog_token, u16 status_code, | |
9062 | const u8 *buf, size_t len) | |
9063 | { | |
9064 | struct i802_bss *bss = priv; | |
9065 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
9066 | struct nl_msg *msg; | |
9067 | ||
9068 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) | |
9069 | return -EOPNOTSUPP; | |
9070 | ||
9071 | if (!dst) | |
9072 | return -EINVAL; | |
9073 | ||
9074 | msg = nlmsg_alloc(); | |
9075 | if (!msg) | |
9076 | return -ENOMEM; | |
9077 | ||
9078 | nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); | |
9079 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
9080 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
9081 | NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); | |
9082 | NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); | |
9083 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); | |
9084 | NLA_PUT(msg, NL80211_ATTR_IE, len, buf); | |
9085 | ||
9086 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
9087 | ||
9088 | nla_put_failure: | |
9089 | nlmsg_free(msg); | |
9090 | return -ENOBUFS; | |
9091 | } | |
9092 | ||
9093 | ||
9094 | static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) | |
9095 | { | |
9096 | struct i802_bss *bss = priv; | |
9097 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
9098 | struct nl_msg *msg; | |
9099 | enum nl80211_tdls_operation nl80211_oper; | |
9100 | ||
9101 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) | |
9102 | return -EOPNOTSUPP; | |
9103 | ||
9104 | switch (oper) { | |
9105 | case TDLS_DISCOVERY_REQ: | |
9106 | nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; | |
9107 | break; | |
9108 | case TDLS_SETUP: | |
9109 | nl80211_oper = NL80211_TDLS_SETUP; | |
9110 | break; | |
9111 | case TDLS_TEARDOWN: | |
9112 | nl80211_oper = NL80211_TDLS_TEARDOWN; | |
9113 | break; | |
9114 | case TDLS_ENABLE_LINK: | |
9115 | nl80211_oper = NL80211_TDLS_ENABLE_LINK; | |
9116 | break; | |
9117 | case TDLS_DISABLE_LINK: | |
9118 | nl80211_oper = NL80211_TDLS_DISABLE_LINK; | |
9119 | break; | |
9120 | case TDLS_ENABLE: | |
9121 | return 0; | |
9122 | case TDLS_DISABLE: | |
9123 | return 0; | |
9124 | default: | |
9125 | return -EINVAL; | |
9126 | } | |
9127 | ||
9128 | msg = nlmsg_alloc(); | |
9129 | if (!msg) | |
9130 | return -ENOMEM; | |
9131 | ||
9132 | nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); | |
9133 | NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); | |
9134 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
9135 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); | |
9136 | ||
9137 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
9138 | ||
9139 | nla_put_failure: | |
9140 | nlmsg_free(msg); | |
9141 | return -ENOBUFS; | |
9142 | } | |
9143 | ||
9144 | #endif /* CONFIG TDLS */ | |
9145 | ||
9146 | ||
9147 | #ifdef ANDROID | |
9148 | ||
9149 | typedef struct android_wifi_priv_cmd { | |
9150 | char *buf; | |
9151 | int used_len; | |
9152 | int total_len; | |
9153 | } android_wifi_priv_cmd; | |
9154 | ||
9155 | static int drv_errors = 0; | |
9156 | ||
9157 | static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) | |
9158 | { | |
9159 | drv_errors++; | |
9160 | if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { | |
9161 | drv_errors = 0; | |
9162 | wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); | |
9163 | } | |
9164 | } | |
9165 | ||
9166 | ||
9167 | static int android_priv_cmd(struct i802_bss *bss, const char *cmd) | |
9168 | { | |
9169 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
9170 | struct ifreq ifr; | |
9171 | android_wifi_priv_cmd priv_cmd; | |
9172 | char buf[MAX_DRV_CMD_SIZE]; | |
9173 | int ret; | |
9174 | ||
9175 | os_memset(&ifr, 0, sizeof(ifr)); | |
9176 | os_memset(&priv_cmd, 0, sizeof(priv_cmd)); | |
9177 | os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); | |
9178 | ||
9179 | os_memset(buf, 0, sizeof(buf)); | |
9180 | os_strlcpy(buf, cmd, sizeof(buf)); | |
9181 | ||
9182 | priv_cmd.buf = buf; | |
9183 | priv_cmd.used_len = sizeof(buf); | |
9184 | priv_cmd.total_len = sizeof(buf); | |
9185 | ifr.ifr_data = &priv_cmd; | |
9186 | ||
9187 | ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); | |
9188 | if (ret < 0) { | |
9189 | wpa_printf(MSG_ERROR, "%s: failed to issue private commands", | |
9190 | __func__); | |
9191 | wpa_driver_send_hang_msg(drv); | |
9192 | return ret; | |
9193 | } | |
9194 | ||
9195 | drv_errors = 0; | |
9196 | return 0; | |
9197 | } | |
9198 | ||
9199 | ||
9200 | static int android_pno_start(struct i802_bss *bss, | |
9201 | struct wpa_driver_scan_params *params) | |
9202 | { | |
9203 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
9204 | struct ifreq ifr; | |
9205 | android_wifi_priv_cmd priv_cmd; | |
9206 | int ret = 0, i = 0, bp; | |
9207 | char buf[WEXT_PNO_MAX_COMMAND_SIZE]; | |
9208 | ||
9209 | bp = WEXT_PNOSETUP_HEADER_SIZE; | |
9210 | os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); | |
9211 | buf[bp++] = WEXT_PNO_TLV_PREFIX; | |
9212 | buf[bp++] = WEXT_PNO_TLV_VERSION; | |
9213 | buf[bp++] = WEXT_PNO_TLV_SUBVERSION; | |
9214 | buf[bp++] = WEXT_PNO_TLV_RESERVED; | |
9215 | ||
9216 | while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { | |
9217 | /* Check that there is enough space needed for 1 more SSID, the | |
9218 | * other sections and null termination */ | |
9219 | if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + | |
9220 | WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) | |
9221 | break; | |
9222 | wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", | |
9223 | params->ssids[i].ssid, | |
9224 | params->ssids[i].ssid_len); | |
9225 | buf[bp++] = WEXT_PNO_SSID_SECTION; | |
9226 | buf[bp++] = params->ssids[i].ssid_len; | |
9227 | os_memcpy(&buf[bp], params->ssids[i].ssid, | |
9228 | params->ssids[i].ssid_len); | |
9229 | bp += params->ssids[i].ssid_len; | |
9230 | i++; | |
9231 | } | |
9232 | ||
9233 | buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; | |
9234 | os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", | |
9235 | WEXT_PNO_SCAN_INTERVAL); | |
9236 | bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; | |
9237 | ||
9238 | buf[bp++] = WEXT_PNO_REPEAT_SECTION; | |
9239 | os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", | |
9240 | WEXT_PNO_REPEAT); | |
9241 | bp += WEXT_PNO_REPEAT_LENGTH; | |
9242 | ||
9243 | buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; | |
9244 | os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", | |
9245 | WEXT_PNO_MAX_REPEAT); | |
9246 | bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; | |
9247 | ||
9248 | memset(&ifr, 0, sizeof(ifr)); | |
9249 | memset(&priv_cmd, 0, sizeof(priv_cmd)); | |
9250 | os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); | |
9251 | ||
9252 | priv_cmd.buf = buf; | |
9253 | priv_cmd.used_len = bp; | |
9254 | priv_cmd.total_len = bp; | |
9255 | ifr.ifr_data = &priv_cmd; | |
9256 | ||
9257 | ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); | |
9258 | ||
9259 | if (ret < 0) { | |
9260 | wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", | |
9261 | ret); | |
9262 | wpa_driver_send_hang_msg(drv); | |
9263 | return ret; | |
9264 | } | |
9265 | ||
9266 | drv_errors = 0; | |
9267 | ||
9268 | return android_priv_cmd(bss, "PNOFORCE 1"); | |
9269 | } | |
9270 | ||
9271 | ||
9272 | static int android_pno_stop(struct i802_bss *bss) | |
9273 | { | |
9274 | return android_priv_cmd(bss, "PNOFORCE 0"); | |
9275 | } | |
9276 | ||
9277 | #endif /* ANDROID */ | |
9278 | ||
9279 | ||
9280 | const struct wpa_driver_ops wpa_driver_nl80211_ops = { | |
9281 | .name = "nl80211", | |
9282 | .desc = "Linux nl80211/cfg80211", | |
9283 | .get_bssid = wpa_driver_nl80211_get_bssid, | |
9284 | .get_ssid = wpa_driver_nl80211_get_ssid, | |
9285 | .set_key = wpa_driver_nl80211_set_key, | |
9286 | .scan2 = wpa_driver_nl80211_scan, | |
9287 | .sched_scan = wpa_driver_nl80211_sched_scan, | |
9288 | .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, | |
9289 | .get_scan_results2 = wpa_driver_nl80211_get_scan_results, | |
9290 | .deauthenticate = wpa_driver_nl80211_deauthenticate, | |
9291 | .authenticate = wpa_driver_nl80211_authenticate, | |
9292 | .associate = wpa_driver_nl80211_associate, | |
9293 | .global_init = nl80211_global_init, | |
9294 | .global_deinit = nl80211_global_deinit, | |
9295 | .init2 = wpa_driver_nl80211_init, | |
9296 | .deinit = wpa_driver_nl80211_deinit, | |
9297 | .get_capa = wpa_driver_nl80211_get_capa, | |
9298 | .set_operstate = wpa_driver_nl80211_set_operstate, | |
9299 | .set_supp_port = wpa_driver_nl80211_set_supp_port, | |
9300 | .set_country = wpa_driver_nl80211_set_country, | |
9301 | .set_ap = wpa_driver_nl80211_set_ap, | |
9302 | .if_add = wpa_driver_nl80211_if_add, | |
9303 | .if_remove = wpa_driver_nl80211_if_remove, | |
9304 | .send_mlme = wpa_driver_nl80211_send_mlme, | |
9305 | .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, | |
9306 | .sta_add = wpa_driver_nl80211_sta_add, | |
9307 | .sta_remove = wpa_driver_nl80211_sta_remove, | |
9308 | .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, | |
9309 | .sta_set_flags = wpa_driver_nl80211_sta_set_flags, | |
9310 | #ifdef HOSTAPD | |
9311 | .hapd_init = i802_init, | |
9312 | .hapd_deinit = i802_deinit, | |
9313 | .set_wds_sta = i802_set_wds_sta, | |
9314 | #endif /* HOSTAPD */ | |
9315 | #if defined(HOSTAPD) || defined(CONFIG_AP) | |
9316 | .get_seqnum = i802_get_seqnum, | |
9317 | .flush = i802_flush, | |
9318 | .get_inact_sec = i802_get_inact_sec, | |
9319 | .sta_clear_stats = i802_sta_clear_stats, | |
9320 | .set_rts = i802_set_rts, | |
9321 | .set_frag = i802_set_frag, | |
9322 | .set_tx_queue_params = i802_set_tx_queue_params, | |
9323 | .set_sta_vlan = i802_set_sta_vlan, | |
9324 | .sta_deauth = i802_sta_deauth, | |
9325 | .sta_disassoc = i802_sta_disassoc, | |
9326 | #endif /* HOSTAPD || CONFIG_AP */ | |
9327 | .read_sta_data = i802_read_sta_data, | |
9328 | .set_freq = i802_set_freq, | |
9329 | .send_action = wpa_driver_nl80211_send_action, | |
9330 | .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, | |
9331 | .remain_on_channel = wpa_driver_nl80211_remain_on_channel, | |
9332 | .cancel_remain_on_channel = | |
9333 | wpa_driver_nl80211_cancel_remain_on_channel, | |
9334 | .probe_req_report = wpa_driver_nl80211_probe_req_report, | |
9335 | .deinit_ap = wpa_driver_nl80211_deinit_ap, | |
9336 | .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, | |
9337 | .resume = wpa_driver_nl80211_resume, | |
9338 | .send_ft_action = nl80211_send_ft_action, | |
9339 | .signal_monitor = nl80211_signal_monitor, | |
9340 | .signal_poll = nl80211_signal_poll, | |
9341 | .send_frame = nl80211_send_frame, | |
9342 | .shared_freq = wpa_driver_nl80211_shared_freq, | |
9343 | .set_param = nl80211_set_param, | |
9344 | .get_radio_name = nl80211_get_radio_name, | |
9345 | .add_pmkid = nl80211_add_pmkid, | |
9346 | .remove_pmkid = nl80211_remove_pmkid, | |
9347 | .flush_pmkid = nl80211_flush_pmkid, | |
9348 | .set_rekey_info = nl80211_set_rekey_info, | |
9349 | .poll_client = nl80211_poll_client, | |
9350 | .set_p2p_powersave = nl80211_set_p2p_powersave, | |
9351 | #ifdef CONFIG_TDLS | |
9352 | .send_tdls_mgmt = nl80211_send_tdls_mgmt, | |
9353 | .tdls_oper = nl80211_tdls_oper, | |
9354 | #endif /* CONFIG_TDLS */ | |
9355 | }; |