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Commit | Line | Data |
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3f5285e8 | 1 | /* |
c5121837 | 2 | * Driver interaction with Linux nl80211/cfg80211 |
8d923a4a | 3 | * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi> |
072ad14c JM |
4 | * Copyright (c) 2003-2004, Instant802 Networks, Inc. |
5 | * Copyright (c) 2005-2006, Devicescape Software, Inc. | |
6 | * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> | |
58f6fbe0 | 7 | * Copyright (c) 2009-2010, Atheros Communications |
3f5285e8 JM |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * Alternatively, this software may be distributed under the terms of BSD | |
14 | * license. | |
15 | * | |
16 | * See README and COPYING for more details. | |
17 | */ | |
18 | ||
19 | #include "includes.h" | |
20 | #include <sys/ioctl.h> | |
6859f1cb BG |
21 | #include <sys/types.h> |
22 | #include <sys/stat.h> | |
23 | #include <fcntl.h> | |
37b7d082 | 24 | #include <net/if.h> |
3f5285e8 JM |
25 | #include <netlink/genl/genl.h> |
26 | #include <netlink/genl/family.h> | |
27 | #include <netlink/genl/ctrl.h> | |
8602b0f2 | 28 | #include <linux/rtnetlink.h> |
1b648c7e JM |
29 | #include <netpacket/packet.h> |
30 | #include <linux/filter.h> | |
7e45830a | 31 | #include "nl80211_copy.h" |
625f587b | 32 | |
3f5285e8 | 33 | #include "common.h" |
1b648c7e | 34 | #include "eloop.h" |
f2ed8023 | 35 | #include "utils/list.h" |
1b648c7e | 36 | #include "common/ieee802_11_defs.h" |
9b90955e | 37 | #include "common/ieee802_11_common.h" |
f10bfc9a | 38 | #include "l2_packet/l2_packet.h" |
e2d02c29 | 39 | #include "netlink.h" |
34f2f814 | 40 | #include "linux_ioctl.h" |
e2d02c29 JM |
41 | #include "radiotap.h" |
42 | #include "radiotap_iter.h" | |
8401a6b0 | 43 | #include "rfkill.h" |
1b648c7e | 44 | #include "driver.h" |
0915d02c | 45 | |
c5121837 JM |
46 | #ifdef CONFIG_LIBNL20 |
47 | /* libnl 2.0 compatibility code */ | |
2e8eac2d | 48 | #define nl_handle nl_sock |
a65a9aed JB |
49 | #define nl80211_handle_alloc nl_socket_alloc_cb |
50 | #define nl80211_handle_destroy nl_socket_free | |
51 | #else | |
52 | /* | |
53 | * libnl 1.1 has a bug, it tries to allocate socket numbers densely | |
54 | * but when you free a socket again it will mess up its bitmap and | |
55 | * and use the wrong number the next time it needs a socket ID. | |
56 | * Therefore, we wrap the handle alloc/destroy and add our own pid | |
57 | * accounting. | |
58 | */ | |
59 | static uint32_t port_bitmap[32] = { 0 }; | |
60 | ||
61 | static struct nl_handle *nl80211_handle_alloc(void *cb) | |
62 | { | |
63 | struct nl_handle *handle; | |
64 | uint32_t pid = getpid() & 0x3FFFFF; | |
65 | int i; | |
66 | ||
67 | handle = nl_handle_alloc_cb(cb); | |
68 | ||
69 | for (i = 0; i < 1024; i++) { | |
70 | if (port_bitmap[i / 32] & (1 << (i % 32))) | |
71 | continue; | |
72 | port_bitmap[i / 32] |= 1 << (i % 32); | |
73 | pid += i << 22; | |
74 | break; | |
75 | } | |
76 | ||
77 | nl_socket_set_local_port(handle, pid); | |
78 | ||
79 | return handle; | |
80 | } | |
81 | ||
82 | static void nl80211_handle_destroy(struct nl_handle *handle) | |
83 | { | |
84 | uint32_t port = nl_socket_get_local_port(handle); | |
85 | ||
86 | port >>= 22; | |
87 | port_bitmap[port / 32] &= ~(1 << (port % 32)); | |
88 | ||
89 | nl_handle_destroy(handle); | |
90 | } | |
c5121837 JM |
91 | #endif /* CONFIG_LIBNL20 */ |
92 | ||
c5121837 | 93 | |
a92dfde8 JB |
94 | struct nl80211_handles { |
95 | struct nl_handle *handle; | |
a92dfde8 JB |
96 | }; |
97 | ||
98 | ||
99 | static int nl_create_handles(struct nl80211_handles *handles, struct nl_cb *cb, | |
100 | const char *dbg) | |
101 | { | |
102 | if (!handles) | |
103 | return -1; | |
104 | ||
105 | handles->handle = nl80211_handle_alloc(cb); | |
106 | if (handles->handle == NULL) { | |
107 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " | |
108 | "callbacks (%s)", dbg); | |
109 | return -1; | |
110 | } | |
111 | ||
112 | if (genl_connect(handles->handle)) { | |
113 | wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " | |
114 | "netlink (%s)", dbg); | |
115 | goto err; | |
116 | } | |
117 | ||
a92dfde8 JB |
118 | return 0; |
119 | err: | |
120 | nl80211_handle_destroy(handles->handle); | |
121 | return -1; | |
122 | } | |
123 | ||
124 | ||
125 | static void nl_destroy_handles(struct nl80211_handles *handles) | |
126 | { | |
127 | if (handles->handle == NULL) | |
128 | return; | |
a92dfde8 JB |
129 | nl80211_handle_destroy(handles->handle); |
130 | handles->handle = NULL; | |
131 | } | |
132 | ||
133 | ||
3f5285e8 JM |
134 | #ifndef IFF_LOWER_UP |
135 | #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ | |
136 | #endif | |
137 | #ifndef IFF_DORMANT | |
138 | #define IFF_DORMANT 0x20000 /* driver signals dormant */ | |
139 | #endif | |
140 | ||
141 | #ifndef IF_OPER_DORMANT | |
142 | #define IF_OPER_DORMANT 5 | |
143 | #endif | |
144 | #ifndef IF_OPER_UP | |
145 | #define IF_OPER_UP 6 | |
146 | #endif | |
147 | ||
f2ed8023 JM |
148 | struct nl80211_global { |
149 | struct dl_list interfaces; | |
ff6a158b | 150 | int if_add_ifindex; |
36d84860 | 151 | struct netlink_data *netlink; |
2a7b66f5 | 152 | struct nl_cb *nl_cb; |
276e2d67 | 153 | struct nl80211_handles nl; |
335d42b1 | 154 | int nl80211_id; |
c81eff1a | 155 | int ioctl_sock; /* socket for ioctl() use */ |
f2ed8023 JM |
156 | }; |
157 | ||
36d84860 | 158 | static void nl80211_global_deinit(void *priv); |
dac12351 | 159 | static void wpa_driver_nl80211_deinit(void *priv); |
36d84860 | 160 | |
c5121837 | 161 | struct i802_bss { |
a2e40bb6 | 162 | struct wpa_driver_nl80211_data *drv; |
c5121837 | 163 | struct i802_bss *next; |
b4fd6fab | 164 | int ifindex; |
a2e40bb6 | 165 | char ifname[IFNAMSIZ + 1]; |
e17a2477 | 166 | char brname[IFNAMSIZ]; |
c5121837 | 167 | unsigned int beacon_set:1; |
e17a2477 JM |
168 | unsigned int added_if_into_bridge:1; |
169 | unsigned int added_bridge:1; | |
c5121837 | 170 | }; |
3f5285e8 JM |
171 | |
172 | struct wpa_driver_nl80211_data { | |
f2ed8023 JM |
173 | struct nl80211_global *global; |
174 | struct dl_list list; | |
175 | u8 addr[ETH_ALEN]; | |
6859f1cb | 176 | char phyname[32]; |
3f5285e8 | 177 | void *ctx; |
3f5285e8 | 178 | int ifindex; |
7524cfb1 | 179 | int if_removed; |
a63063b4 | 180 | int if_disabled; |
7d9c3698 | 181 | int ignore_if_down_event; |
8401a6b0 | 182 | struct rfkill_data *rfkill; |
c2a04078 JM |
183 | struct wpa_driver_capa capa; |
184 | int has_capability; | |
c2a04078 | 185 | |
3f5285e8 JM |
186 | int operstate; |
187 | ||
3f5285e8 JM |
188 | int scan_complete_events; |
189 | ||
276e2d67 | 190 | struct nl80211_handles nl_event, nl_preq; |
1c873584 | 191 | |
e6b8efeb | 192 | u8 auth_bssid[ETH_ALEN]; |
c2a04078 JM |
193 | u8 bssid[ETH_ALEN]; |
194 | int associated; | |
fd05d64e JM |
195 | u8 ssid[32]; |
196 | size_t ssid_len; | |
b1f625e0 EP |
197 | enum nl80211_iftype nlmode; |
198 | enum nl80211_iftype ap_scan_as_station; | |
4832ecd7 | 199 | unsigned int assoc_freq; |
d2440ba0 | 200 | |
0915d02c JM |
201 | int monitor_sock; |
202 | int monitor_ifidx; | |
866af8b6 | 203 | int no_monitor_iface_capab; |
7da3abe7 | 204 | |
b3af99d2 | 205 | unsigned int disabled_11b_rates:1; |
55777702 | 206 | unsigned int pending_remain_on_chan:1; |
dac12351 | 207 | unsigned int in_interface_list:1; |
55777702 JM |
208 | |
209 | u64 remain_on_chan_cookie; | |
58f6fbe0 | 210 | u64 send_action_cookie; |
c5121837 | 211 | |
5582a5d1 | 212 | unsigned int last_mgmt_freq; |
86957e62 | 213 | unsigned int ap_oper_freq; |
5582a5d1 | 214 | |
3812464c JM |
215 | struct wpa_driver_scan_filter *filter_ssids; |
216 | size_t num_filter_ssids; | |
217 | ||
a2e40bb6 FF |
218 | struct i802_bss first_bss; |
219 | ||
f10bfc9a JM |
220 | #ifdef CONFIG_AP |
221 | struct l2_packet_data *l2; | |
222 | #endif /* CONFIG_AP */ | |
223 | ||
c5121837 | 224 | #ifdef HOSTAPD |
c5121837 | 225 | int eapol_sock; /* socket for EAPOL frames */ |
c5121837 JM |
226 | |
227 | int default_if_indices[16]; | |
228 | int *if_indices; | |
229 | int num_if_indices; | |
230 | ||
c5121837 JM |
231 | int last_freq; |
232 | int last_freq_ht; | |
c5121837 | 233 | #endif /* HOSTAPD */ |
3f5285e8 JM |
234 | }; |
235 | ||
236 | ||
237 | static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, | |
238 | void *timeout_ctx); | |
b1f625e0 EP |
239 | static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, |
240 | enum nl80211_iftype nlmode); | |
362f781e | 241 | static int |
7524cfb1 | 242 | wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); |
d72aad94 | 243 | static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, |
77339912 JM |
244 | const u8 *addr, int cmd, u16 reason_code, |
245 | int local_state_change); | |
460456f8 JM |
246 | static void nl80211_remove_monitor_interface( |
247 | struct wpa_driver_nl80211_data *drv); | |
5582a5d1 | 248 | static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv, |
5dfca53f | 249 | unsigned int freq, unsigned int wait, |
b106173a JM |
250 | const u8 *buf, size_t buf_len, u64 *cookie, |
251 | int no_cck); | |
5582a5d1 | 252 | static int wpa_driver_nl80211_probe_req_report(void *priv, int report); |
0915d02c | 253 | |
072ad14c | 254 | #ifdef HOSTAPD |
2135f224 JM |
255 | static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); |
256 | static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); | |
97cfcf64 | 257 | static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); |
fbbfcbac FF |
258 | static int wpa_driver_nl80211_if_remove(void *priv, |
259 | enum wpa_driver_if_type type, | |
260 | const char *ifname); | |
37eb8da9 | 261 | #else /* HOSTAPD */ |
bd2df892 JM |
262 | static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) |
263 | { | |
264 | } | |
265 | ||
266 | static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
267 | { | |
268 | } | |
269 | ||
270 | static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
37eb8da9 JM |
271 | { |
272 | return 0; | |
273 | } | |
072ad14c JM |
274 | #endif /* HOSTAPD */ |
275 | ||
e3802622 | 276 | static int i802_set_freq(void *priv, struct hostapd_freq_params *freq); |
4e5cb1a3 JM |
277 | static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, |
278 | int ifindex, int disabled); | |
504e905c | 279 | |
21bdbe38 JM |
280 | static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); |
281 | ||
3f5285e8 | 282 | |
b1f625e0 EP |
283 | static int is_ap_interface(enum nl80211_iftype nlmode) |
284 | { | |
285 | return (nlmode == NL80211_IFTYPE_AP || | |
286 | nlmode == NL80211_IFTYPE_P2P_GO); | |
287 | } | |
288 | ||
289 | ||
290 | static int is_sta_interface(enum nl80211_iftype nlmode) | |
291 | { | |
292 | return (nlmode == NL80211_IFTYPE_STATION || | |
293 | nlmode == NL80211_IFTYPE_P2P_CLIENT); | |
294 | } | |
295 | ||
296 | ||
b3af99d2 JM |
297 | static int is_p2p_interface(enum nl80211_iftype nlmode) |
298 | { | |
299 | return (nlmode == NL80211_IFTYPE_P2P_CLIENT || | |
300 | nlmode == NL80211_IFTYPE_P2P_GO); | |
301 | } | |
302 | ||
303 | ||
f5a8d422 JM |
304 | struct nl80211_bss_info_arg { |
305 | struct wpa_driver_nl80211_data *drv; | |
306 | struct wpa_scan_results *res; | |
307 | unsigned int assoc_freq; | |
20f5a4c2 | 308 | u8 assoc_bssid[ETH_ALEN]; |
f5a8d422 JM |
309 | }; |
310 | ||
311 | static int bss_info_handler(struct nl_msg *msg, void *arg); | |
312 | ||
313 | ||
6241fcb1 JM |
314 | /* nl80211 code */ |
315 | static int ack_handler(struct nl_msg *msg, void *arg) | |
316 | { | |
317 | int *err = arg; | |
318 | *err = 0; | |
319 | return NL_STOP; | |
320 | } | |
321 | ||
322 | static int finish_handler(struct nl_msg *msg, void *arg) | |
323 | { | |
8e8df255 JM |
324 | int *ret = arg; |
325 | *ret = 0; | |
6241fcb1 JM |
326 | return NL_SKIP; |
327 | } | |
328 | ||
329 | static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, | |
330 | void *arg) | |
331 | { | |
332 | int *ret = arg; | |
333 | *ret = err->error; | |
334 | return NL_SKIP; | |
335 | } | |
336 | ||
5b7b85f6 JM |
337 | |
338 | static int no_seq_check(struct nl_msg *msg, void *arg) | |
339 | { | |
340 | return NL_OK; | |
341 | } | |
342 | ||
343 | ||
58f6fbe0 JM |
344 | static int send_and_recv(struct wpa_driver_nl80211_data *drv, |
345 | struct nl_handle *nl_handle, struct nl_msg *msg, | |
346 | int (*valid_handler)(struct nl_msg *, void *), | |
347 | void *valid_data) | |
6241fcb1 JM |
348 | { |
349 | struct nl_cb *cb; | |
350 | int err = -ENOMEM; | |
351 | ||
2a7b66f5 | 352 | cb = nl_cb_clone(drv->global->nl_cb); |
6241fcb1 JM |
353 | if (!cb) |
354 | goto out; | |
355 | ||
58f6fbe0 | 356 | err = nl_send_auto_complete(nl_handle, msg); |
6241fcb1 JM |
357 | if (err < 0) |
358 | goto out; | |
359 | ||
360 | err = 1; | |
361 | ||
362 | nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); | |
8e8df255 | 363 | nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); |
6241fcb1 JM |
364 | nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); |
365 | ||
366 | if (valid_handler) | |
367 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, | |
368 | valid_handler, valid_data); | |
369 | ||
370 | while (err > 0) | |
58f6fbe0 | 371 | nl_recvmsgs(nl_handle, cb); |
6241fcb1 JM |
372 | out: |
373 | nl_cb_put(cb); | |
374 | nlmsg_free(msg); | |
375 | return err; | |
376 | } | |
377 | ||
378 | ||
58f6fbe0 JM |
379 | static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, |
380 | struct nl_msg *msg, | |
381 | int (*valid_handler)(struct nl_msg *, void *), | |
382 | void *valid_data) | |
383 | { | |
276e2d67 | 384 | return send_and_recv(drv, drv->global->nl.handle, msg, valid_handler, |
58f6fbe0 JM |
385 | valid_data); |
386 | } | |
387 | ||
388 | ||
97865538 JM |
389 | struct family_data { |
390 | const char *group; | |
391 | int id; | |
392 | }; | |
393 | ||
394 | ||
395 | static int family_handler(struct nl_msg *msg, void *arg) | |
396 | { | |
397 | struct family_data *res = arg; | |
398 | struct nlattr *tb[CTRL_ATTR_MAX + 1]; | |
399 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
400 | struct nlattr *mcgrp; | |
401 | int i; | |
402 | ||
403 | nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
404 | genlmsg_attrlen(gnlh, 0), NULL); | |
405 | if (!tb[CTRL_ATTR_MCAST_GROUPS]) | |
406 | return NL_SKIP; | |
407 | ||
408 | nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { | |
409 | struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; | |
410 | nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), | |
411 | nla_len(mcgrp), NULL); | |
412 | if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || | |
413 | !tb2[CTRL_ATTR_MCAST_GRP_ID] || | |
414 | os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), | |
415 | res->group, | |
416 | nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) | |
417 | continue; | |
418 | res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); | |
419 | break; | |
420 | }; | |
421 | ||
422 | return NL_SKIP; | |
423 | } | |
424 | ||
425 | ||
426 | static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv, | |
427 | const char *family, const char *group) | |
428 | { | |
429 | struct nl_msg *msg; | |
430 | int ret = -1; | |
431 | struct family_data res = { group, -ENOENT }; | |
432 | ||
433 | msg = nlmsg_alloc(); | |
434 | if (!msg) | |
435 | return -ENOMEM; | |
276e2d67 BG |
436 | genlmsg_put(msg, 0, 0, |
437 | genl_ctrl_resolve(drv->global->nl.handle, "nlctrl"), | |
97865538 JM |
438 | 0, 0, CTRL_CMD_GETFAMILY, 0); |
439 | NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); | |
440 | ||
441 | ret = send_and_recv_msgs(drv, msg, family_handler, &res); | |
442 | msg = NULL; | |
443 | if (ret == 0) | |
444 | ret = res.id; | |
445 | ||
446 | nla_put_failure: | |
447 | nlmsg_free(msg); | |
448 | return ret; | |
449 | } | |
450 | ||
451 | ||
9fb04070 JM |
452 | static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, |
453 | struct nl_msg *msg, int flags, uint8_t cmd) | |
454 | { | |
335d42b1 | 455 | return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, |
276e2d67 | 456 | 0, flags, cmd, 0); |
9fb04070 JM |
457 | } |
458 | ||
459 | ||
3f5285e8 JM |
460 | static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) |
461 | { | |
a2e40bb6 FF |
462 | struct i802_bss *bss = priv; |
463 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c2a04078 JM |
464 | if (!drv->associated) |
465 | return -1; | |
466 | os_memcpy(bssid, drv->bssid, ETH_ALEN); | |
467 | return 0; | |
3f5285e8 JM |
468 | } |
469 | ||
470 | ||
3f5285e8 JM |
471 | static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) |
472 | { | |
a2e40bb6 FF |
473 | struct i802_bss *bss = priv; |
474 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
fd05d64e JM |
475 | if (!drv->associated) |
476 | return -1; | |
477 | os_memcpy(ssid, drv->ssid, drv->ssid_len); | |
478 | return drv->ssid_len; | |
3f5285e8 JM |
479 | } |
480 | ||
481 | ||
7524cfb1 | 482 | static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, |
08063178 | 483 | char *buf, size_t len, int del) |
3f5285e8 JM |
484 | { |
485 | union wpa_event_data event; | |
486 | ||
487 | os_memset(&event, 0, sizeof(event)); | |
488 | if (len > sizeof(event.interface_status.ifname)) | |
489 | len = sizeof(event.interface_status.ifname) - 1; | |
490 | os_memcpy(event.interface_status.ifname, buf, len); | |
491 | event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : | |
492 | EVENT_INTERFACE_ADDED; | |
493 | ||
494 | wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", | |
495 | del ? "DEL" : "NEW", | |
496 | event.interface_status.ifname, | |
497 | del ? "removed" : "added"); | |
498 | ||
a2e40bb6 | 499 | if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { |
7524cfb1 JM |
500 | if (del) |
501 | drv->if_removed = 1; | |
502 | else | |
503 | drv->if_removed = 0; | |
504 | } | |
505 | ||
08063178 | 506 | wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); |
3f5285e8 JM |
507 | } |
508 | ||
509 | ||
7524cfb1 | 510 | static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, |
62d680c3 | 511 | u8 *buf, size_t len) |
7524cfb1 | 512 | { |
62d680c3 | 513 | int attrlen, rta_len; |
7524cfb1 JM |
514 | struct rtattr *attr; |
515 | ||
62d680c3 JM |
516 | attrlen = len; |
517 | attr = (struct rtattr *) buf; | |
7524cfb1 JM |
518 | |
519 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); | |
520 | while (RTA_OK(attr, attrlen)) { | |
521 | if (attr->rta_type == IFLA_IFNAME) { | |
a2e40bb6 | 522 | if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) |
7524cfb1 JM |
523 | == 0) |
524 | return 1; | |
525 | else | |
526 | break; | |
527 | } | |
528 | attr = RTA_NEXT(attr, attrlen); | |
529 | } | |
530 | ||
531 | return 0; | |
532 | } | |
533 | ||
534 | ||
535 | static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, | |
62d680c3 | 536 | int ifindex, u8 *buf, size_t len) |
7524cfb1 JM |
537 | { |
538 | if (drv->ifindex == ifindex) | |
539 | return 1; | |
540 | ||
62d680c3 | 541 | if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { |
a2e40bb6 | 542 | drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname); |
7524cfb1 JM |
543 | wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " |
544 | "interface"); | |
545 | wpa_driver_nl80211_finish_drv_init(drv); | |
546 | return 1; | |
547 | } | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | ||
36d84860 BG |
553 | static struct wpa_driver_nl80211_data * |
554 | nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) | |
555 | { | |
556 | struct wpa_driver_nl80211_data *drv; | |
557 | dl_list_for_each(drv, &global->interfaces, | |
558 | struct wpa_driver_nl80211_data, list) { | |
559 | if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || | |
560 | have_ifidx(drv, idx)) | |
561 | return drv; | |
562 | } | |
563 | return NULL; | |
564 | } | |
565 | ||
566 | ||
62d680c3 JM |
567 | static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, |
568 | struct ifinfomsg *ifi, | |
569 | u8 *buf, size_t len) | |
3f5285e8 | 570 | { |
36d84860 BG |
571 | struct nl80211_global *global = ctx; |
572 | struct wpa_driver_nl80211_data *drv; | |
62d680c3 JM |
573 | int attrlen, rta_len; |
574 | struct rtattr *attr; | |
97cfcf64 | 575 | u32 brid = 0; |
3f5285e8 | 576 | |
36d84860 BG |
577 | drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); |
578 | if (!drv) { | |
97cfcf64 B |
579 | wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " |
580 | "ifindex %d", ifi->ifi_index); | |
3f5285e8 JM |
581 | return; |
582 | } | |
583 | ||
584 | wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " | |
585 | "(%s%s%s%s)", | |
586 | drv->operstate, ifi->ifi_flags, | |
587 | (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", | |
588 | (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", | |
589 | (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", | |
590 | (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); | |
a63063b4 JM |
591 | |
592 | if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { | |
59d24925 JM |
593 | char namebuf[IFNAMSIZ]; |
594 | if (if_indextoname(ifi->ifi_index, namebuf) && | |
595 | linux_iface_up(drv->global->ioctl_sock, | |
596 | drv->first_bss.ifname) > 0) { | |
597 | wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " | |
598 | "event since interface %s is up", namebuf); | |
599 | return; | |
600 | } | |
a63063b4 | 601 | wpa_printf(MSG_DEBUG, "nl80211: Interface down"); |
7d9c3698 JM |
602 | if (drv->ignore_if_down_event) { |
603 | wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " | |
604 | "event generated by mode change"); | |
605 | drv->ignore_if_down_event = 0; | |
606 | } else { | |
607 | drv->if_disabled = 1; | |
608 | wpa_supplicant_event(drv->ctx, | |
609 | EVENT_INTERFACE_DISABLED, NULL); | |
610 | } | |
a63063b4 JM |
611 | } |
612 | ||
613 | if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { | |
614 | wpa_printf(MSG_DEBUG, "nl80211: Interface up"); | |
615 | drv->if_disabled = 0; | |
616 | wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL); | |
617 | } | |
618 | ||
3f5285e8 JM |
619 | /* |
620 | * Some drivers send the association event before the operup event--in | |
621 | * this case, lifting operstate in wpa_driver_nl80211_set_operstate() | |
622 | * fails. This will hit us when wpa_supplicant does not need to do | |
623 | * IEEE 802.1X authentication | |
624 | */ | |
625 | if (drv->operstate == 1 && | |
626 | (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && | |
627 | !(ifi->ifi_flags & IFF_RUNNING)) | |
36d84860 | 628 | netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, |
e2d02c29 | 629 | -1, IF_OPER_UP); |
3f5285e8 | 630 | |
62d680c3 JM |
631 | attrlen = len; |
632 | attr = (struct rtattr *) buf; | |
3f5285e8 JM |
633 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); |
634 | while (RTA_OK(attr, attrlen)) { | |
d8816397 | 635 | if (attr->rta_type == IFLA_IFNAME) { |
7524cfb1 | 636 | wpa_driver_nl80211_event_link( |
08063178 | 637 | drv, |
7524cfb1 JM |
638 | ((char *) attr) + rta_len, |
639 | attr->rta_len - rta_len, 0); | |
97cfcf64 B |
640 | } else if (attr->rta_type == IFLA_MASTER) |
641 | brid = nla_get_u32((struct nlattr *) attr); | |
3f5285e8 JM |
642 | attr = RTA_NEXT(attr, attrlen); |
643 | } | |
97cfcf64 B |
644 | |
645 | if (ifi->ifi_family == AF_BRIDGE && brid) { | |
646 | /* device has been added to bridge */ | |
647 | char namebuf[IFNAMSIZ]; | |
648 | if_indextoname(brid, namebuf); | |
649 | wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", | |
650 | brid, namebuf); | |
651 | add_ifidx(drv, brid); | |
652 | } | |
3f5285e8 JM |
653 | } |
654 | ||
655 | ||
62d680c3 JM |
656 | static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, |
657 | struct ifinfomsg *ifi, | |
658 | u8 *buf, size_t len) | |
3f5285e8 | 659 | { |
36d84860 BG |
660 | struct nl80211_global *global = ctx; |
661 | struct wpa_driver_nl80211_data *drv; | |
62d680c3 JM |
662 | int attrlen, rta_len; |
663 | struct rtattr *attr; | |
97cfcf64 | 664 | u32 brid = 0; |
3f5285e8 | 665 | |
36d84860 BG |
666 | drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); |
667 | if (!drv) { | |
668 | wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " | |
669 | "foreign ifindex %d", ifi->ifi_index); | |
670 | return; | |
671 | } | |
672 | ||
62d680c3 JM |
673 | attrlen = len; |
674 | attr = (struct rtattr *) buf; | |
3f5285e8 JM |
675 | |
676 | rta_len = RTA_ALIGN(sizeof(struct rtattr)); | |
677 | while (RTA_OK(attr, attrlen)) { | |
678 | if (attr->rta_type == IFLA_IFNAME) { | |
7524cfb1 | 679 | wpa_driver_nl80211_event_link( |
08063178 | 680 | drv, |
7524cfb1 JM |
681 | ((char *) attr) + rta_len, |
682 | attr->rta_len - rta_len, 1); | |
97cfcf64 B |
683 | } else if (attr->rta_type == IFLA_MASTER) |
684 | brid = nla_get_u32((struct nlattr *) attr); | |
3f5285e8 JM |
685 | attr = RTA_NEXT(attr, attrlen); |
686 | } | |
97cfcf64 B |
687 | |
688 | if (ifi->ifi_family == AF_BRIDGE && brid) { | |
689 | /* device has been removed from bridge */ | |
690 | char namebuf[IFNAMSIZ]; | |
691 | if_indextoname(brid, namebuf); | |
692 | wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " | |
693 | "%s", brid, namebuf); | |
694 | del_ifidx(drv, brid); | |
695 | } | |
3f5285e8 JM |
696 | } |
697 | ||
698 | ||
c2a04078 JM |
699 | static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, |
700 | const u8 *frame, size_t len) | |
701 | { | |
702 | const struct ieee80211_mgmt *mgmt; | |
703 | union wpa_event_data event; | |
704 | ||
705 | mgmt = (const struct ieee80211_mgmt *) frame; | |
706 | if (len < 24 + sizeof(mgmt->u.auth)) { | |
707 | wpa_printf(MSG_DEBUG, "nl80211: Too short association event " | |
708 | "frame"); | |
709 | return; | |
710 | } | |
711 | ||
e6b8efeb | 712 | os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); |
c2a04078 JM |
713 | os_memset(&event, 0, sizeof(event)); |
714 | os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); | |
715 | event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); | |
716 | event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); | |
717 | if (len > 24 + sizeof(mgmt->u.auth)) { | |
718 | event.auth.ies = mgmt->u.auth.variable; | |
719 | event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); | |
720 | } | |
721 | ||
722 | wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); | |
723 | } | |
724 | ||
725 | ||
f5a8d422 JM |
726 | static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) |
727 | { | |
728 | struct nl_msg *msg; | |
729 | int ret; | |
730 | struct nl80211_bss_info_arg arg; | |
731 | ||
732 | os_memset(&arg, 0, sizeof(arg)); | |
733 | msg = nlmsg_alloc(); | |
734 | if (!msg) | |
735 | goto nla_put_failure; | |
736 | ||
9fb04070 | 737 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); |
f5a8d422 JM |
738 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
739 | ||
740 | arg.drv = drv; | |
741 | ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); | |
742 | msg = NULL; | |
743 | if (ret == 0) { | |
744 | wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " | |
745 | "associated BSS from scan results: %u MHz", | |
746 | arg.assoc_freq); | |
747 | return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq; | |
748 | } | |
749 | wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " | |
750 | "(%s)", ret, strerror(-ret)); | |
751 | nla_put_failure: | |
752 | nlmsg_free(msg); | |
753 | return drv->assoc_freq; | |
754 | } | |
755 | ||
756 | ||
c2a04078 JM |
757 | static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, |
758 | const u8 *frame, size_t len) | |
759 | { | |
760 | const struct ieee80211_mgmt *mgmt; | |
761 | union wpa_event_data event; | |
762 | u16 status; | |
763 | ||
764 | mgmt = (const struct ieee80211_mgmt *) frame; | |
765 | if (len < 24 + sizeof(mgmt->u.assoc_resp)) { | |
766 | wpa_printf(MSG_DEBUG, "nl80211: Too short association event " | |
767 | "frame"); | |
768 | return; | |
769 | } | |
770 | ||
771 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
772 | if (status != WLAN_STATUS_SUCCESS) { | |
efa46078 | 773 | os_memset(&event, 0, sizeof(event)); |
59ddf221 | 774 | event.assoc_reject.bssid = mgmt->bssid; |
efa46078 JM |
775 | if (len > 24 + sizeof(mgmt->u.assoc_resp)) { |
776 | event.assoc_reject.resp_ies = | |
777 | (u8 *) mgmt->u.assoc_resp.variable; | |
778 | event.assoc_reject.resp_ies_len = | |
779 | len - 24 - sizeof(mgmt->u.assoc_resp); | |
780 | } | |
781 | event.assoc_reject.status_code = status; | |
782 | ||
783 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); | |
c2a04078 JM |
784 | return; |
785 | } | |
786 | ||
787 | drv->associated = 1; | |
788 | os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); | |
789 | ||
790 | os_memset(&event, 0, sizeof(event)); | |
791 | if (len > 24 + sizeof(mgmt->u.assoc_resp)) { | |
792 | event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; | |
793 | event.assoc_info.resp_ies_len = | |
efa46078 | 794 | len - 24 - sizeof(mgmt->u.assoc_resp); |
c2a04078 JM |
795 | } |
796 | ||
4832ecd7 JM |
797 | event.assoc_info.freq = drv->assoc_freq; |
798 | ||
c2a04078 JM |
799 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); |
800 | } | |
801 | ||
c1bb3e0a | 802 | |
da72a1c1 ZY |
803 | static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, |
804 | enum nl80211_commands cmd, struct nlattr *status, | |
805 | struct nlattr *addr, struct nlattr *req_ie, | |
806 | struct nlattr *resp_ie) | |
807 | { | |
808 | union wpa_event_data event; | |
809 | ||
7da2c527 JM |
810 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { |
811 | /* | |
812 | * Avoid reporting two association events that would confuse | |
813 | * the core code. | |
814 | */ | |
815 | wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " | |
816 | "when using userspace SME", cmd); | |
817 | return; | |
818 | } | |
819 | ||
da72a1c1 ZY |
820 | os_memset(&event, 0, sizeof(event)); |
821 | if (cmd == NL80211_CMD_CONNECT && | |
822 | nla_get_u16(status) != WLAN_STATUS_SUCCESS) { | |
df89c1c8 JM |
823 | if (addr) |
824 | event.assoc_reject.bssid = nla_data(addr); | |
da72a1c1 ZY |
825 | if (resp_ie) { |
826 | event.assoc_reject.resp_ies = nla_data(resp_ie); | |
827 | event.assoc_reject.resp_ies_len = nla_len(resp_ie); | |
828 | } | |
829 | event.assoc_reject.status_code = nla_get_u16(status); | |
830 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); | |
831 | return; | |
832 | } | |
833 | ||
834 | drv->associated = 1; | |
835 | if (addr) | |
836 | os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); | |
837 | ||
838 | if (req_ie) { | |
839 | event.assoc_info.req_ies = nla_data(req_ie); | |
840 | event.assoc_info.req_ies_len = nla_len(req_ie); | |
841 | } | |
842 | if (resp_ie) { | |
843 | event.assoc_info.resp_ies = nla_data(resp_ie); | |
844 | event.assoc_info.resp_ies_len = nla_len(resp_ie); | |
845 | } | |
846 | ||
f5a8d422 JM |
847 | event.assoc_info.freq = nl80211_get_assoc_freq(drv); |
848 | ||
da72a1c1 ZY |
849 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); |
850 | } | |
c2a04078 | 851 | |
c1bb3e0a | 852 | |
20f5a4c2 JM |
853 | static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, |
854 | struct nlattr *reason, struct nlattr *addr) | |
855 | { | |
856 | union wpa_event_data data; | |
857 | ||
858 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { | |
859 | /* | |
860 | * Avoid reporting two disassociation events that could | |
861 | * confuse the core code. | |
862 | */ | |
863 | wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " | |
864 | "event when using userspace SME"); | |
865 | return; | |
866 | } | |
867 | ||
868 | drv->associated = 0; | |
869 | os_memset(&data, 0, sizeof(data)); | |
870 | if (reason) | |
871 | data.disassoc_info.reason_code = nla_get_u16(reason); | |
872 | wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data); | |
873 | } | |
874 | ||
875 | ||
da1fb17c JM |
876 | static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, |
877 | enum nl80211_commands cmd, struct nlattr *addr) | |
878 | { | |
879 | union wpa_event_data event; | |
880 | enum wpa_event_type ev; | |
881 | ||
882 | if (nla_len(addr) != ETH_ALEN) | |
883 | return; | |
884 | ||
885 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, | |
886 | cmd, MAC2STR((u8 *) nla_data(addr))); | |
887 | ||
888 | if (cmd == NL80211_CMD_AUTHENTICATE) | |
889 | ev = EVENT_AUTH_TIMED_OUT; | |
890 | else if (cmd == NL80211_CMD_ASSOCIATE) | |
891 | ev = EVENT_ASSOC_TIMED_OUT; | |
892 | else | |
893 | return; | |
894 | ||
895 | os_memset(&event, 0, sizeof(event)); | |
896 | os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); | |
897 | wpa_supplicant_event(drv->ctx, ev, &event); | |
898 | } | |
899 | ||
900 | ||
5582a5d1 JB |
901 | static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, |
902 | struct nlattr *freq, const u8 *frame, size_t len) | |
58f6fbe0 JM |
903 | { |
904 | const struct ieee80211_mgmt *mgmt; | |
905 | union wpa_event_data event; | |
906 | u16 fc, stype; | |
907 | ||
908 | mgmt = (const struct ieee80211_mgmt *) frame; | |
909 | if (len < 24) { | |
910 | wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); | |
911 | return; | |
912 | } | |
913 | ||
914 | fc = le_to_host16(mgmt->frame_control); | |
915 | stype = WLAN_FC_GET_STYPE(fc); | |
916 | ||
917 | os_memset(&event, 0, sizeof(event)); | |
5582a5d1 | 918 | if (freq) { |
58f6fbe0 | 919 | event.rx_action.freq = nla_get_u32(freq); |
5582a5d1 JB |
920 | drv->last_mgmt_freq = event.rx_action.freq; |
921 | } | |
922 | if (stype == WLAN_FC_STYPE_ACTION) { | |
923 | event.rx_action.da = mgmt->da; | |
924 | event.rx_action.sa = mgmt->sa; | |
925 | event.rx_action.bssid = mgmt->bssid; | |
926 | event.rx_action.category = mgmt->u.action.category; | |
927 | event.rx_action.data = &mgmt->u.action.category + 1; | |
928 | event.rx_action.len = frame + len - event.rx_action.data; | |
929 | wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); | |
930 | } else { | |
931 | event.rx_mgmt.frame = frame; | |
932 | event.rx_mgmt.frame_len = len; | |
933 | wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); | |
934 | } | |
58f6fbe0 JM |
935 | } |
936 | ||
937 | ||
938 | static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv, | |
939 | struct nlattr *cookie, const u8 *frame, | |
940 | size_t len, struct nlattr *ack) | |
941 | { | |
942 | union wpa_event_data event; | |
943 | const struct ieee80211_hdr *hdr; | |
944 | u16 fc; | |
945 | u64 cookie_val; | |
946 | ||
947 | if (!cookie) | |
948 | return; | |
949 | ||
950 | cookie_val = nla_get_u64(cookie); | |
4796272f JM |
951 | wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s " |
952 | "(ack=%d)", | |
58f6fbe0 JM |
953 | (long long unsigned int) cookie_val, |
954 | cookie_val == drv->send_action_cookie ? | |
4796272f | 955 | " (match)" : " (unknown)", ack != NULL); |
58f6fbe0 JM |
956 | if (cookie_val != drv->send_action_cookie) |
957 | return; | |
958 | ||
959 | hdr = (const struct ieee80211_hdr *) frame; | |
960 | fc = le_to_host16(hdr->frame_control); | |
961 | ||
962 | os_memset(&event, 0, sizeof(event)); | |
963 | event.tx_status.type = WLAN_FC_GET_TYPE(fc); | |
964 | event.tx_status.stype = WLAN_FC_GET_STYPE(fc); | |
965 | event.tx_status.dst = hdr->addr1; | |
966 | event.tx_status.data = frame; | |
967 | event.tx_status.data_len = len; | |
968 | event.tx_status.ack = ack != NULL; | |
969 | wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); | |
970 | } | |
971 | ||
972 | ||
0544b242 JM |
973 | static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, |
974 | enum wpa_event_type type, | |
975 | const u8 *frame, size_t len) | |
976 | { | |
977 | const struct ieee80211_mgmt *mgmt; | |
978 | union wpa_event_data event; | |
979 | const u8 *bssid = NULL; | |
980 | u16 reason_code = 0; | |
981 | ||
cb30b297 PS |
982 | mgmt = (const struct ieee80211_mgmt *) frame; |
983 | if (len >= 24) { | |
984 | bssid = mgmt->bssid; | |
985 | ||
986 | if (drv->associated != 0 && | |
987 | os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && | |
988 | os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { | |
989 | /* | |
990 | * We have presumably received this deauth as a | |
991 | * response to a clear_state_mismatch() outgoing | |
992 | * deauth. Don't let it take us offline! | |
993 | */ | |
994 | wpa_printf(MSG_DEBUG, "nl80211: Deauth received " | |
995 | "from Unknown BSSID " MACSTR " -- ignoring", | |
996 | MAC2STR(bssid)); | |
997 | return; | |
998 | } | |
999 | } | |
1000 | ||
0544b242 JM |
1001 | drv->associated = 0; |
1002 | os_memset(&event, 0, sizeof(event)); | |
1003 | ||
0544b242 JM |
1004 | /* Note: Same offset for Reason Code in both frame subtypes */ |
1005 | if (len >= 24 + sizeof(mgmt->u.deauth)) | |
1006 | reason_code = le_to_host16(mgmt->u.deauth.reason_code); | |
1007 | ||
1008 | if (type == EVENT_DISASSOC) { | |
1009 | event.disassoc_info.addr = bssid; | |
1010 | event.disassoc_info.reason_code = reason_code; | |
046b26a2 JM |
1011 | if (frame + len > mgmt->u.disassoc.variable) { |
1012 | event.disassoc_info.ie = mgmt->u.disassoc.variable; | |
1013 | event.disassoc_info.ie_len = frame + len - | |
1014 | mgmt->u.disassoc.variable; | |
1015 | } | |
0544b242 JM |
1016 | } else { |
1017 | event.deauth_info.addr = bssid; | |
1018 | event.deauth_info.reason_code = reason_code; | |
046b26a2 JM |
1019 | if (frame + len > mgmt->u.deauth.variable) { |
1020 | event.deauth_info.ie = mgmt->u.deauth.variable; | |
1021 | event.deauth_info.ie_len = frame + len - | |
1022 | mgmt->u.deauth.variable; | |
1023 | } | |
0544b242 JM |
1024 | } |
1025 | ||
1026 | wpa_supplicant_event(drv->ctx, type, &event); | |
1027 | } | |
1028 | ||
1029 | ||
7d878ca7 JM |
1030 | static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, |
1031 | enum wpa_event_type type, | |
1032 | const u8 *frame, size_t len) | |
1033 | { | |
1034 | const struct ieee80211_mgmt *mgmt; | |
1035 | union wpa_event_data event; | |
1036 | u16 reason_code = 0; | |
1037 | ||
1038 | if (len < 24) | |
1039 | return; | |
1040 | ||
1041 | mgmt = (const struct ieee80211_mgmt *) frame; | |
1042 | ||
1043 | os_memset(&event, 0, sizeof(event)); | |
1044 | /* Note: Same offset for Reason Code in both frame subtypes */ | |
1045 | if (len >= 24 + sizeof(mgmt->u.deauth)) | |
1046 | reason_code = le_to_host16(mgmt->u.deauth.reason_code); | |
1047 | ||
1048 | if (type == EVENT_UNPROT_DISASSOC) { | |
1049 | event.unprot_disassoc.sa = mgmt->sa; | |
1050 | event.unprot_disassoc.da = mgmt->da; | |
1051 | event.unprot_disassoc.reason_code = reason_code; | |
1052 | } else { | |
1053 | event.unprot_deauth.sa = mgmt->sa; | |
1054 | event.unprot_deauth.da = mgmt->da; | |
1055 | event.unprot_deauth.reason_code = reason_code; | |
1056 | } | |
1057 | ||
1058 | wpa_supplicant_event(drv->ctx, type, &event); | |
1059 | } | |
1060 | ||
1061 | ||
c2a04078 | 1062 | static void mlme_event(struct wpa_driver_nl80211_data *drv, |
da1fb17c | 1063 | enum nl80211_commands cmd, struct nlattr *frame, |
58f6fbe0 JM |
1064 | struct nlattr *addr, struct nlattr *timed_out, |
1065 | struct nlattr *freq, struct nlattr *ack, | |
1066 | struct nlattr *cookie) | |
c2a04078 | 1067 | { |
da1fb17c JM |
1068 | if (timed_out && addr) { |
1069 | mlme_timeout_event(drv, cmd, addr); | |
1070 | return; | |
1071 | } | |
1072 | ||
c2a04078 JM |
1073 | if (frame == NULL) { |
1074 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame " | |
1075 | "data", cmd); | |
1076 | return; | |
1077 | } | |
1078 | ||
1079 | wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd); | |
1080 | wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", | |
1081 | nla_data(frame), nla_len(frame)); | |
1082 | ||
1083 | switch (cmd) { | |
1084 | case NL80211_CMD_AUTHENTICATE: | |
1085 | mlme_event_auth(drv, nla_data(frame), nla_len(frame)); | |
1086 | break; | |
1087 | case NL80211_CMD_ASSOCIATE: | |
1088 | mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); | |
1089 | break; | |
1090 | case NL80211_CMD_DEAUTHENTICATE: | |
0544b242 JM |
1091 | mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, |
1092 | nla_data(frame), nla_len(frame)); | |
c2a04078 JM |
1093 | break; |
1094 | case NL80211_CMD_DISASSOCIATE: | |
0544b242 JM |
1095 | mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, |
1096 | nla_data(frame), nla_len(frame)); | |
c2a04078 | 1097 | break; |
bd94971e | 1098 | case NL80211_CMD_FRAME: |
5582a5d1 | 1099 | mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame)); |
58f6fbe0 | 1100 | break; |
bd94971e | 1101 | case NL80211_CMD_FRAME_TX_STATUS: |
58f6fbe0 JM |
1102 | mlme_event_action_tx_status(drv, cookie, nla_data(frame), |
1103 | nla_len(frame), ack); | |
1104 | break; | |
7d878ca7 JM |
1105 | case NL80211_CMD_UNPROT_DEAUTHENTICATE: |
1106 | mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, | |
1107 | nla_data(frame), nla_len(frame)); | |
1108 | break; | |
1109 | case NL80211_CMD_UNPROT_DISASSOCIATE: | |
1110 | mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, | |
1111 | nla_data(frame), nla_len(frame)); | |
1112 | break; | |
c2a04078 JM |
1113 | default: |
1114 | break; | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | ||
35583f3f JM |
1119 | static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv, |
1120 | struct nlattr *tb[]) | |
1121 | { | |
1122 | union wpa_event_data data; | |
1123 | ||
1124 | wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); | |
1125 | os_memset(&data, 0, sizeof(data)); | |
1126 | if (tb[NL80211_ATTR_MAC]) { | |
1127 | wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", | |
1128 | nla_data(tb[NL80211_ATTR_MAC]), | |
1129 | nla_len(tb[NL80211_ATTR_MAC])); | |
ad1e68e6 | 1130 | data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); |
35583f3f JM |
1131 | } |
1132 | if (tb[NL80211_ATTR_KEY_SEQ]) { | |
1133 | wpa_hexdump(MSG_DEBUG, "nl80211: TSC", | |
1134 | nla_data(tb[NL80211_ATTR_KEY_SEQ]), | |
1135 | nla_len(tb[NL80211_ATTR_KEY_SEQ])); | |
1136 | } | |
1137 | if (tb[NL80211_ATTR_KEY_TYPE]) { | |
1138 | enum nl80211_key_type key_type = | |
1139 | nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); | |
1140 | wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); | |
1141 | if (key_type == NL80211_KEYTYPE_PAIRWISE) | |
1142 | data.michael_mic_failure.unicast = 1; | |
1143 | } else | |
1144 | data.michael_mic_failure.unicast = 1; | |
1145 | ||
1146 | if (tb[NL80211_ATTR_KEY_IDX]) { | |
1147 | u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); | |
1148 | wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); | |
1149 | } | |
1150 | ||
1151 | wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); | |
1152 | } | |
1153 | ||
1154 | ||
5cc4d64b JM |
1155 | static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, |
1156 | struct nlattr *tb[]) | |
1157 | { | |
1158 | if (tb[NL80211_ATTR_MAC] == NULL) { | |
1159 | wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " | |
1160 | "event"); | |
1161 | return; | |
1162 | } | |
1163 | os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); | |
1164 | drv->associated = 1; | |
1165 | wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", | |
1166 | MAC2STR(drv->bssid)); | |
1167 | ||
1168 | wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); | |
1169 | } | |
1170 | ||
1171 | ||
55777702 JM |
1172 | static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, |
1173 | int cancel_event, struct nlattr *tb[]) | |
1174 | { | |
1175 | unsigned int freq, chan_type, duration; | |
1176 | union wpa_event_data data; | |
1177 | u64 cookie; | |
1178 | ||
1179 | if (tb[NL80211_ATTR_WIPHY_FREQ]) | |
1180 | freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); | |
1181 | else | |
1182 | freq = 0; | |
1183 | ||
1184 | if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) | |
1185 | chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1186 | else | |
1187 | chan_type = 0; | |
1188 | ||
1189 | if (tb[NL80211_ATTR_DURATION]) | |
1190 | duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); | |
1191 | else | |
1192 | duration = 0; | |
1193 | ||
1194 | if (tb[NL80211_ATTR_COOKIE]) | |
1195 | cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); | |
1196 | else | |
1197 | cookie = 0; | |
1198 | ||
1199 | wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " | |
1200 | "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", | |
1201 | cancel_event, freq, chan_type, duration, | |
1202 | (long long unsigned int) cookie, | |
1203 | cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); | |
1204 | ||
1205 | if (cookie != drv->remain_on_chan_cookie) | |
1206 | return; /* not for us */ | |
1207 | ||
531f0331 JB |
1208 | if (cancel_event) |
1209 | drv->pending_remain_on_chan = 0; | |
55777702 JM |
1210 | |
1211 | os_memset(&data, 0, sizeof(data)); | |
1212 | data.remain_on_channel.freq = freq; | |
1213 | data.remain_on_channel.duration = duration; | |
1214 | wpa_supplicant_event(drv->ctx, cancel_event ? | |
1215 | EVENT_CANCEL_REMAIN_ON_CHANNEL : | |
1216 | EVENT_REMAIN_ON_CHANNEL, &data); | |
1217 | } | |
1218 | ||
1219 | ||
8d923a4a JM |
1220 | static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, |
1221 | struct nlattr *tb[]) | |
1222 | { | |
1223 | union wpa_event_data event; | |
1224 | struct nlattr *nl; | |
1225 | int rem; | |
1226 | struct scan_info *info; | |
1227 | #define MAX_REPORT_FREQS 50 | |
1228 | int freqs[MAX_REPORT_FREQS]; | |
1229 | int num_freqs = 0; | |
1230 | ||
1231 | os_memset(&event, 0, sizeof(event)); | |
1232 | info = &event.scan_info; | |
1233 | info->aborted = aborted; | |
1234 | ||
1235 | if (tb[NL80211_ATTR_SCAN_SSIDS]) { | |
1236 | nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { | |
1237 | struct wpa_driver_scan_ssid *s = | |
1238 | &info->ssids[info->num_ssids]; | |
1239 | s->ssid = nla_data(nl); | |
1240 | s->ssid_len = nla_len(nl); | |
1241 | info->num_ssids++; | |
1242 | if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) | |
1243 | break; | |
1244 | } | |
1245 | } | |
1246 | if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
1247 | nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) | |
1248 | { | |
1249 | freqs[num_freqs] = nla_get_u32(nl); | |
1250 | num_freqs++; | |
1251 | if (num_freqs == MAX_REPORT_FREQS - 1) | |
1252 | break; | |
1253 | } | |
1254 | info->freqs = freqs; | |
1255 | info->num_freqs = num_freqs; | |
1256 | } | |
1257 | wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); | |
1258 | } | |
1259 | ||
1260 | ||
60a972a6 JM |
1261 | static int get_link_signal(struct nl_msg *msg, void *arg) |
1262 | { | |
1263 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1264 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1265 | struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; | |
1266 | static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { | |
1267 | [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, | |
1268 | }; | |
7ee35bf3 PS |
1269 | struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; |
1270 | static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { | |
1271 | [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, | |
1272 | [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, | |
1273 | [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, | |
1274 | [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, | |
1275 | }; | |
1c5c7273 | 1276 | struct wpa_signal_info *sig_change = arg; |
60a972a6 JM |
1277 | |
1278 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1279 | genlmsg_attrlen(gnlh, 0), NULL); | |
1280 | if (!tb[NL80211_ATTR_STA_INFO] || | |
1281 | nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, | |
1282 | tb[NL80211_ATTR_STA_INFO], policy)) | |
1283 | return NL_SKIP; | |
1284 | if (!sinfo[NL80211_STA_INFO_SIGNAL]) | |
1285 | return NL_SKIP; | |
1286 | ||
7ee35bf3 PS |
1287 | sig_change->current_signal = |
1288 | (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); | |
1289 | ||
1290 | if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { | |
1291 | if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, | |
1292 | sinfo[NL80211_STA_INFO_TX_BITRATE], | |
1293 | rate_policy)) { | |
1294 | sig_change->current_txrate = 0; | |
1295 | } else { | |
1296 | if (rinfo[NL80211_RATE_INFO_BITRATE]) { | |
1297 | sig_change->current_txrate = | |
1298 | nla_get_u16(rinfo[ | |
1299 | NL80211_RATE_INFO_BITRATE]) * 100; | |
1300 | } | |
1301 | } | |
1302 | } | |
1303 | ||
60a972a6 JM |
1304 | return NL_SKIP; |
1305 | } | |
1306 | ||
1307 | ||
1308 | static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, | |
1c5c7273 | 1309 | struct wpa_signal_info *sig) |
60a972a6 JM |
1310 | { |
1311 | struct nl_msg *msg; | |
1312 | ||
7ee35bf3 PS |
1313 | sig->current_signal = -9999; |
1314 | sig->current_txrate = 0; | |
60a972a6 JM |
1315 | |
1316 | msg = nlmsg_alloc(); | |
1317 | if (!msg) | |
1318 | return -ENOMEM; | |
1319 | ||
9fb04070 | 1320 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); |
60a972a6 JM |
1321 | |
1322 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1323 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); | |
1324 | ||
1325 | return send_and_recv_msgs(drv, msg, get_link_signal, sig); | |
1326 | nla_put_failure: | |
1327 | return -ENOBUFS; | |
1328 | } | |
1329 | ||
1330 | ||
7ee35bf3 PS |
1331 | static int get_link_noise(struct nl_msg *msg, void *arg) |
1332 | { | |
1333 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1334 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1335 | struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; | |
1336 | static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { | |
1337 | [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, | |
1338 | [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, | |
1339 | }; | |
1c5c7273 | 1340 | struct wpa_signal_info *sig_change = arg; |
7ee35bf3 PS |
1341 | |
1342 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1343 | genlmsg_attrlen(gnlh, 0), NULL); | |
1344 | ||
1345 | if (!tb[NL80211_ATTR_SURVEY_INFO]) { | |
1346 | wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); | |
1347 | return NL_SKIP; | |
1348 | } | |
1349 | ||
1350 | if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, | |
1351 | tb[NL80211_ATTR_SURVEY_INFO], | |
1352 | survey_policy)) { | |
1353 | wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " | |
1354 | "attributes!"); | |
1355 | return NL_SKIP; | |
1356 | } | |
1357 | ||
1358 | if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) | |
1359 | return NL_SKIP; | |
1360 | ||
1361 | if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != | |
1362 | sig_change->frequency) | |
1363 | return NL_SKIP; | |
1364 | ||
1365 | if (!sinfo[NL80211_SURVEY_INFO_NOISE]) | |
1366 | return NL_SKIP; | |
1367 | ||
1368 | sig_change->current_noise = | |
1369 | (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); | |
1370 | ||
1371 | return NL_SKIP; | |
1372 | } | |
1373 | ||
1374 | ||
1375 | static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, | |
1c5c7273 | 1376 | struct wpa_signal_info *sig_change) |
7ee35bf3 PS |
1377 | { |
1378 | struct nl_msg *msg; | |
1379 | ||
1380 | sig_change->current_noise = 9999; | |
1381 | sig_change->frequency = drv->assoc_freq; | |
1382 | ||
1383 | msg = nlmsg_alloc(); | |
1384 | if (!msg) | |
1385 | return -ENOMEM; | |
1386 | ||
9fb04070 | 1387 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); |
7ee35bf3 PS |
1388 | |
1389 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1390 | ||
1391 | return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); | |
1392 | nla_put_failure: | |
1393 | return -ENOBUFS; | |
1394 | } | |
1395 | ||
1396 | ||
577db0ae GM |
1397 | static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) |
1398 | { | |
1399 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1400 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1401 | struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; | |
1402 | static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { | |
1403 | [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, | |
1404 | [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, | |
1405 | }; | |
1406 | struct wpa_scan_results *scan_results = arg; | |
1407 | struct wpa_scan_res *scan_res; | |
1408 | size_t i; | |
1409 | ||
1410 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1411 | genlmsg_attrlen(gnlh, 0), NULL); | |
1412 | ||
1413 | if (!tb[NL80211_ATTR_SURVEY_INFO]) { | |
1414 | wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); | |
1415 | return NL_SKIP; | |
1416 | } | |
1417 | ||
1418 | if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, | |
1419 | tb[NL80211_ATTR_SURVEY_INFO], | |
1420 | survey_policy)) { | |
1421 | wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " | |
1422 | "attributes"); | |
1423 | return NL_SKIP; | |
1424 | } | |
1425 | ||
1426 | if (!sinfo[NL80211_SURVEY_INFO_NOISE]) | |
1427 | return NL_SKIP; | |
1428 | ||
1429 | if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) | |
1430 | return NL_SKIP; | |
1431 | ||
1432 | for (i = 0; i < scan_results->num; ++i) { | |
1433 | scan_res = scan_results->res[i]; | |
1434 | if (!scan_res) | |
1435 | continue; | |
1436 | if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != | |
1437 | scan_res->freq) | |
1438 | continue; | |
1439 | if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) | |
1440 | continue; | |
1441 | scan_res->noise = (s8) | |
1442 | nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); | |
1443 | scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; | |
1444 | } | |
1445 | ||
1446 | return NL_SKIP; | |
1447 | } | |
1448 | ||
1449 | ||
1450 | static int nl80211_get_noise_for_scan_results( | |
1451 | struct wpa_driver_nl80211_data *drv, | |
1452 | struct wpa_scan_results *scan_res) | |
1453 | { | |
1454 | struct nl_msg *msg; | |
1455 | ||
1456 | msg = nlmsg_alloc(); | |
1457 | if (!msg) | |
1458 | return -ENOMEM; | |
1459 | ||
1460 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); | |
1461 | ||
1462 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
1463 | ||
1464 | return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, | |
1465 | scan_res); | |
1466 | nla_put_failure: | |
1467 | return -ENOBUFS; | |
1468 | } | |
1469 | ||
1470 | ||
93910401 JM |
1471 | static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, |
1472 | struct nlattr *tb[]) | |
1473 | { | |
1474 | static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { | |
1475 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
1476 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, | |
1477 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
0d7e5a3a | 1478 | [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, |
93910401 JM |
1479 | }; |
1480 | struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; | |
1481 | enum nl80211_cqm_rssi_threshold_event event; | |
b625473c | 1482 | union wpa_event_data ed; |
1c5c7273 | 1483 | struct wpa_signal_info sig; |
7ee35bf3 | 1484 | int res; |
93910401 JM |
1485 | |
1486 | if (tb[NL80211_ATTR_CQM] == NULL || | |
1487 | nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], | |
1488 | cqm_policy)) { | |
1489 | wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); | |
1490 | return; | |
1491 | } | |
1492 | ||
0d7e5a3a JB |
1493 | os_memset(&ed, 0, sizeof(ed)); |
1494 | ||
1495 | if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { | |
1496 | if (!tb[NL80211_ATTR_MAC]) | |
1497 | return; | |
1498 | os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), | |
1499 | ETH_ALEN); | |
1500 | wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); | |
1501 | return; | |
1502 | } | |
1503 | ||
93910401 JM |
1504 | if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) |
1505 | return; | |
1506 | event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); | |
b625473c | 1507 | |
93910401 JM |
1508 | if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { |
1509 | wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " | |
1510 | "event: RSSI high"); | |
b625473c | 1511 | ed.signal_change.above_threshold = 1; |
93910401 JM |
1512 | } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { |
1513 | wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " | |
1514 | "event: RSSI low"); | |
b625473c JM |
1515 | ed.signal_change.above_threshold = 0; |
1516 | } else | |
1517 | return; | |
1518 | ||
60a972a6 JM |
1519 | res = nl80211_get_link_signal(drv, &sig); |
1520 | if (res == 0) { | |
7ee35bf3 PS |
1521 | ed.signal_change.current_signal = sig.current_signal; |
1522 | ed.signal_change.current_txrate = sig.current_txrate; | |
1523 | wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", | |
1524 | sig.current_signal, sig.current_txrate); | |
1525 | } | |
1526 | ||
1527 | res = nl80211_get_link_noise(drv, &sig); | |
1528 | if (res == 0) { | |
1529 | ed.signal_change.current_noise = sig.current_noise; | |
1530 | wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", | |
1531 | sig.current_noise); | |
60a972a6 JM |
1532 | } |
1533 | ||
b625473c | 1534 | wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); |
93910401 JM |
1535 | } |
1536 | ||
1537 | ||
18d2ba08 JM |
1538 | static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, |
1539 | struct nlattr **tb) | |
1540 | { | |
1541 | u8 *addr; | |
1542 | union wpa_event_data data; | |
1543 | ||
1544 | if (tb[NL80211_ATTR_MAC] == NULL) | |
1545 | return; | |
1546 | addr = nla_data(tb[NL80211_ATTR_MAC]); | |
1547 | wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); | |
5f310a9e | 1548 | |
86957e62 | 1549 | if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) { |
5f310a9e JM |
1550 | u8 *ies = NULL; |
1551 | size_t ies_len = 0; | |
1552 | if (tb[NL80211_ATTR_IE]) { | |
1553 | ies = nla_data(tb[NL80211_ATTR_IE]); | |
1554 | ies_len = nla_len(tb[NL80211_ATTR_IE]); | |
1555 | } | |
1556 | wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); | |
1557 | drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); | |
1558 | return; | |
1559 | } | |
1560 | ||
18d2ba08 JM |
1561 | if (drv->nlmode != NL80211_IFTYPE_ADHOC) |
1562 | return; | |
1563 | ||
1564 | os_memset(&data, 0, sizeof(data)); | |
1565 | os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); | |
1566 | wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); | |
1567 | } | |
1568 | ||
1569 | ||
ef985058 JM |
1570 | static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, |
1571 | struct nlattr **tb) | |
1572 | { | |
1573 | u8 *addr; | |
1574 | union wpa_event_data data; | |
1575 | ||
1576 | if (tb[NL80211_ATTR_MAC] == NULL) | |
1577 | return; | |
1578 | addr = nla_data(tb[NL80211_ATTR_MAC]); | |
1579 | wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, | |
1580 | MAC2STR(addr)); | |
5f310a9e | 1581 | |
86957e62 | 1582 | if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) { |
5f310a9e JM |
1583 | drv_event_disassoc(drv->ctx, addr); |
1584 | return; | |
1585 | } | |
1586 | ||
ef985058 JM |
1587 | if (drv->nlmode != NL80211_IFTYPE_ADHOC) |
1588 | return; | |
1589 | ||
1590 | os_memset(&data, 0, sizeof(data)); | |
1591 | os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); | |
1592 | wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); | |
1593 | } | |
1594 | ||
1595 | ||
b14a210c JB |
1596 | static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, |
1597 | struct nlattr **tb) | |
1598 | { | |
1599 | struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; | |
1600 | static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
1601 | [NL80211_REKEY_DATA_KEK] = { | |
1602 | .minlen = NL80211_KEK_LEN, | |
1603 | .maxlen = NL80211_KEK_LEN, | |
1604 | }, | |
1605 | [NL80211_REKEY_DATA_KCK] = { | |
1606 | .minlen = NL80211_KCK_LEN, | |
1607 | .maxlen = NL80211_KCK_LEN, | |
1608 | }, | |
1609 | [NL80211_REKEY_DATA_REPLAY_CTR] = { | |
1610 | .minlen = NL80211_REPLAY_CTR_LEN, | |
1611 | .maxlen = NL80211_REPLAY_CTR_LEN, | |
1612 | }, | |
1613 | }; | |
1614 | union wpa_event_data data; | |
1615 | ||
1616 | if (!tb[NL80211_ATTR_MAC]) | |
1617 | return; | |
1618 | if (!tb[NL80211_ATTR_REKEY_DATA]) | |
1619 | return; | |
1620 | if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, | |
1621 | tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) | |
1622 | return; | |
1623 | if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) | |
1624 | return; | |
1625 | ||
1626 | os_memset(&data, 0, sizeof(data)); | |
1627 | data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); | |
1628 | wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, | |
1629 | MAC2STR(data.driver_gtk_rekey.bssid)); | |
1630 | data.driver_gtk_rekey.replay_ctr = | |
1631 | nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); | |
1632 | wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", | |
1633 | data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); | |
1634 | wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); | |
1635 | } | |
1636 | ||
1637 | ||
c36d5242 JM |
1638 | static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, |
1639 | struct nlattr **tb) | |
1640 | { | |
1641 | struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; | |
1642 | static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { | |
1643 | [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, | |
1644 | [NL80211_PMKSA_CANDIDATE_BSSID] = { | |
1645 | .minlen = ETH_ALEN, | |
1646 | .maxlen = ETH_ALEN, | |
1647 | }, | |
1648 | [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, | |
1649 | }; | |
1650 | union wpa_event_data data; | |
1651 | ||
1652 | if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) | |
1653 | return; | |
1654 | if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, | |
1655 | tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) | |
1656 | return; | |
1657 | if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || | |
1658 | !cand[NL80211_PMKSA_CANDIDATE_BSSID]) | |
1659 | return; | |
1660 | ||
1661 | os_memset(&data, 0, sizeof(data)); | |
1662 | os_memcpy(data.pmkid_candidate.bssid, | |
1663 | nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); | |
1664 | data.pmkid_candidate.index = | |
1665 | nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); | |
1666 | data.pmkid_candidate.preauth = | |
1667 | cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; | |
1668 | wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); | |
1669 | } | |
1670 | ||
1671 | ||
97865538 JM |
1672 | static int process_event(struct nl_msg *msg, void *arg) |
1673 | { | |
1674 | struct wpa_driver_nl80211_data *drv = arg; | |
1675 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1676 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1677 | ||
1678 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1679 | genlmsg_attrlen(gnlh, 0), NULL); | |
1680 | ||
1681 | if (tb[NL80211_ATTR_IFINDEX]) { | |
1682 | int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
97cfcf64 | 1683 | if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) { |
97865538 JM |
1684 | wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)" |
1685 | " for foreign interface (ifindex %d)", | |
1686 | gnlh->cmd, ifindex); | |
1687 | return NL_SKIP; | |
1688 | } | |
1689 | } | |
1690 | ||
b1f625e0 | 1691 | if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && |
ad1e68e6 JM |
1692 | (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS || |
1693 | gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) { | |
a2e40bb6 | 1694 | wpa_driver_nl80211_set_mode(&drv->first_bss, |
b1f625e0 EP |
1695 | drv->ap_scan_as_station); |
1696 | drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; | |
ad1e68e6 JM |
1697 | } |
1698 | ||
97865538 | 1699 | switch (gnlh->cmd) { |
d942a79e JM |
1700 | case NL80211_CMD_TRIGGER_SCAN: |
1701 | wpa_printf(MSG_DEBUG, "nl80211: Scan trigger"); | |
1702 | break; | |
d21c63b9 LC |
1703 | case NL80211_CMD_START_SCHED_SCAN: |
1704 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan started"); | |
1705 | break; | |
1706 | case NL80211_CMD_SCHED_SCAN_STOPPED: | |
1707 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped"); | |
1708 | wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); | |
1709 | break; | |
97865538 JM |
1710 | case NL80211_CMD_NEW_SCAN_RESULTS: |
1711 | wpa_printf(MSG_DEBUG, "nl80211: New scan results available"); | |
1712 | drv->scan_complete_events = 1; | |
1713 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, | |
1714 | drv->ctx); | |
8d923a4a | 1715 | send_scan_event(drv, 0, tb); |
97865538 | 1716 | break; |
d21c63b9 LC |
1717 | case NL80211_CMD_SCHED_SCAN_RESULTS: |
1718 | wpa_printf(MSG_DEBUG, | |
1719 | "nl80211: New sched scan results available"); | |
1720 | send_scan_event(drv, 0, tb); | |
1721 | break; | |
97865538 JM |
1722 | case NL80211_CMD_SCAN_ABORTED: |
1723 | wpa_printf(MSG_DEBUG, "nl80211: Scan aborted"); | |
1724 | /* | |
1725 | * Need to indicate that scan results are available in order | |
1726 | * not to make wpa_supplicant stop its scanning. | |
1727 | */ | |
1728 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, | |
1729 | drv->ctx); | |
8d923a4a | 1730 | send_scan_event(drv, 1, tb); |
97865538 | 1731 | break; |
c2a04078 JM |
1732 | case NL80211_CMD_AUTHENTICATE: |
1733 | case NL80211_CMD_ASSOCIATE: | |
1734 | case NL80211_CMD_DEAUTHENTICATE: | |
1735 | case NL80211_CMD_DISASSOCIATE: | |
bd94971e JB |
1736 | case NL80211_CMD_FRAME: |
1737 | case NL80211_CMD_FRAME_TX_STATUS: | |
7d878ca7 JM |
1738 | case NL80211_CMD_UNPROT_DEAUTHENTICATE: |
1739 | case NL80211_CMD_UNPROT_DISASSOCIATE: | |
da1fb17c | 1740 | mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME], |
58f6fbe0 JM |
1741 | tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], |
1742 | tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], | |
1743 | tb[NL80211_ATTR_COOKIE]); | |
c2a04078 | 1744 | break; |
da72a1c1 ZY |
1745 | case NL80211_CMD_CONNECT: |
1746 | case NL80211_CMD_ROAM: | |
1747 | mlme_event_connect(drv, gnlh->cmd, | |
1748 | tb[NL80211_ATTR_STATUS_CODE], | |
1749 | tb[NL80211_ATTR_MAC], | |
1750 | tb[NL80211_ATTR_REQ_IE], | |
1751 | tb[NL80211_ATTR_RESP_IE]); | |
1752 | break; | |
1753 | case NL80211_CMD_DISCONNECT: | |
20f5a4c2 JM |
1754 | mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], |
1755 | tb[NL80211_ATTR_MAC]); | |
da72a1c1 | 1756 | break; |
35583f3f JM |
1757 | case NL80211_CMD_MICHAEL_MIC_FAILURE: |
1758 | mlme_event_michael_mic_failure(drv, tb); | |
1759 | break; | |
5cc4d64b JM |
1760 | case NL80211_CMD_JOIN_IBSS: |
1761 | mlme_event_join_ibss(drv, tb); | |
1762 | break; | |
55777702 JM |
1763 | case NL80211_CMD_REMAIN_ON_CHANNEL: |
1764 | mlme_event_remain_on_channel(drv, 0, tb); | |
1765 | break; | |
1766 | case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: | |
1767 | mlme_event_remain_on_channel(drv, 1, tb); | |
1768 | break; | |
93910401 JM |
1769 | case NL80211_CMD_NOTIFY_CQM: |
1770 | nl80211_cqm_event(drv, tb); | |
1771 | break; | |
33c5deb8 JM |
1772 | case NL80211_CMD_REG_CHANGE: |
1773 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); | |
1774 | wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, | |
1775 | NULL); | |
1776 | break; | |
1777 | case NL80211_CMD_REG_BEACON_HINT: | |
1778 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); | |
1779 | wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, | |
1780 | NULL); | |
1781 | break; | |
18d2ba08 JM |
1782 | case NL80211_CMD_NEW_STATION: |
1783 | nl80211_new_station_event(drv, tb); | |
1784 | break; | |
ef985058 JM |
1785 | case NL80211_CMD_DEL_STATION: |
1786 | nl80211_del_station_event(drv, tb); | |
1787 | break; | |
b14a210c JB |
1788 | case NL80211_CMD_SET_REKEY_OFFLOAD: |
1789 | nl80211_rekey_offload_event(drv, tb); | |
1790 | break; | |
c36d5242 JM |
1791 | case NL80211_CMD_PMKSA_CANDIDATE: |
1792 | nl80211_pmksa_candidate_event(drv, tb); | |
1793 | break; | |
97865538 | 1794 | default: |
c2a04078 JM |
1795 | wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " |
1796 | "(cmd=%d)", gnlh->cmd); | |
97865538 JM |
1797 | break; |
1798 | } | |
1799 | ||
1800 | return NL_SKIP; | |
1801 | } | |
1802 | ||
1803 | ||
1804 | static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, | |
5582a5d1 | 1805 | void *handle) |
97865538 JM |
1806 | { |
1807 | struct nl_cb *cb; | |
1808 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
1809 | ||
1810 | wpa_printf(MSG_DEBUG, "nl80211: Event message available"); | |
1811 | ||
2a7b66f5 | 1812 | cb = nl_cb_clone(drv->global->nl_cb); |
97865538 JM |
1813 | if (!cb) |
1814 | return; | |
1815 | nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); | |
1816 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv); | |
5582a5d1 | 1817 | nl_recvmsgs(handle, cb); |
97865538 JM |
1818 | nl_cb_put(cb); |
1819 | } | |
1820 | ||
1821 | ||
6d158490 LR |
1822 | /** |
1823 | * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain | |
1824 | * @priv: driver_nl80211 private data | |
1825 | * @alpha2_arg: country to which to switch to | |
1826 | * Returns: 0 on success, -1 on failure | |
1827 | * | |
1828 | * This asks nl80211 to set the regulatory domain for given | |
1829 | * country ISO / IEC alpha2. | |
1830 | */ | |
1831 | static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) | |
1832 | { | |
a2e40bb6 FF |
1833 | struct i802_bss *bss = priv; |
1834 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6d158490 LR |
1835 | char alpha2[3]; |
1836 | struct nl_msg *msg; | |
1837 | ||
1838 | msg = nlmsg_alloc(); | |
1839 | if (!msg) | |
e785c2ba | 1840 | return -ENOMEM; |
6d158490 LR |
1841 | |
1842 | alpha2[0] = alpha2_arg[0]; | |
1843 | alpha2[1] = alpha2_arg[1]; | |
1844 | alpha2[2] = '\0'; | |
1845 | ||
9fb04070 | 1846 | nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); |
6d158490 LR |
1847 | |
1848 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); | |
1849 | if (send_and_recv_msgs(drv, msg, NULL, NULL)) | |
1850 | return -EINVAL; | |
1851 | return 0; | |
1852 | nla_put_failure: | |
1853 | return -EINVAL; | |
1854 | } | |
1855 | ||
1856 | ||
80bc75f1 | 1857 | struct wiphy_info_data { |
e8b5e24e JB |
1858 | struct wpa_driver_capa *capa; |
1859 | ||
1860 | unsigned int error:1; | |
80bc75f1 JM |
1861 | }; |
1862 | ||
1863 | ||
1864 | static int wiphy_info_handler(struct nl_msg *msg, void *arg) | |
1865 | { | |
1866 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1867 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1868 | struct wiphy_info_data *info = arg; | |
9f51b113 | 1869 | int p2p_go_supported = 0, p2p_client_supported = 0; |
e8b5e24e JB |
1870 | int p2p_concurrent = 0; |
1871 | int auth_supported = 0, connect_supported = 0; | |
1872 | struct wpa_driver_capa *capa = info->capa; | |
7626850d JB |
1873 | static struct nla_policy |
1874 | iface_combination_policy[NUM_NL80211_IFACE_COMB] = { | |
1875 | [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, | |
1876 | [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, | |
1877 | [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, | |
1878 | [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, | |
1879 | }, | |
1880 | iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { | |
1881 | [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, | |
1882 | [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, | |
1883 | }; | |
80bc75f1 JM |
1884 | |
1885 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1886 | genlmsg_attrlen(gnlh, 0), NULL); | |
1887 | ||
1888 | if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) | |
e8b5e24e | 1889 | capa->max_scan_ssids = |
80bc75f1 JM |
1890 | nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); |
1891 | ||
d21c63b9 | 1892 | if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) |
e8b5e24e | 1893 | capa->max_sched_scan_ssids = |
d21c63b9 LC |
1894 | nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); |
1895 | ||
bd525934 | 1896 | if (tb[NL80211_ATTR_MAX_MATCH_SETS]) |
e8b5e24e | 1897 | capa->max_match_sets = |
bd525934 LC |
1898 | nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); |
1899 | ||
1581b38b JM |
1900 | if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) { |
1901 | struct nlattr *nl_mode; | |
1902 | int i; | |
1903 | nla_for_each_nested(nl_mode, | |
1904 | tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) { | |
58708b3b | 1905 | switch (nla_type(nl_mode)) { |
9f51b113 | 1906 | case NL80211_IFTYPE_AP: |
e8b5e24e | 1907 | capa->flags |= WPA_DRIVER_FLAGS_AP; |
1581b38b | 1908 | break; |
9f51b113 JB |
1909 | case NL80211_IFTYPE_P2P_GO: |
1910 | p2p_go_supported = 1; | |
1911 | break; | |
1912 | case NL80211_IFTYPE_P2P_CLIENT: | |
1913 | p2p_client_supported = 1; | |
1914 | break; | |
1581b38b JM |
1915 | } |
1916 | } | |
1917 | } | |
1918 | ||
7626850d JB |
1919 | if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) { |
1920 | struct nlattr *nl_combi; | |
1921 | int rem_combi; | |
1922 | ||
1923 | nla_for_each_nested(nl_combi, | |
1924 | tb[NL80211_ATTR_INTERFACE_COMBINATIONS], | |
1925 | rem_combi) { | |
1926 | struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; | |
1927 | struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; | |
1928 | struct nlattr *nl_limit, *nl_mode; | |
1929 | int err, rem_limit, rem_mode; | |
1930 | int combination_has_p2p = 0, combination_has_mgd = 0; | |
1931 | ||
1932 | err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, | |
1933 | nl_combi, | |
1934 | iface_combination_policy); | |
1935 | if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || | |
1936 | !tb_comb[NL80211_IFACE_COMB_MAXNUM] || | |
1937 | !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) | |
1938 | goto broken_combination; | |
1939 | ||
1940 | nla_for_each_nested(nl_limit, | |
1941 | tb_comb[NL80211_IFACE_COMB_LIMITS], | |
1942 | rem_limit) { | |
1943 | err = nla_parse_nested(tb_limit, | |
1944 | MAX_NL80211_IFACE_LIMIT, | |
1945 | nl_limit, | |
1946 | iface_limit_policy); | |
1947 | if (err || | |
1948 | !tb_limit[NL80211_IFACE_LIMIT_TYPES]) | |
1949 | goto broken_combination; | |
1950 | ||
1951 | nla_for_each_nested( | |
1952 | nl_mode, | |
1953 | tb_limit[NL80211_IFACE_LIMIT_TYPES], | |
1954 | rem_mode) { | |
1955 | int ift = nla_type(nl_mode); | |
1956 | if (ift == NL80211_IFTYPE_P2P_GO || | |
1957 | ift == NL80211_IFTYPE_P2P_CLIENT) | |
1958 | combination_has_p2p = 1; | |
1959 | if (ift == NL80211_IFTYPE_STATION) | |
1960 | combination_has_mgd = 1; | |
1961 | } | |
1962 | if (combination_has_p2p && combination_has_mgd) | |
1963 | break; | |
1964 | } | |
1965 | ||
1966 | if (combination_has_p2p && combination_has_mgd) { | |
e8b5e24e | 1967 | p2p_concurrent = 1; |
7626850d JB |
1968 | break; |
1969 | } | |
1970 | ||
1971 | broken_combination: | |
1972 | ; | |
1973 | } | |
1974 | } | |
1975 | ||
93d11400 ZY |
1976 | if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) { |
1977 | struct nlattr *nl_cmd; | |
1978 | int i; | |
1979 | ||
1980 | nla_for_each_nested(nl_cmd, | |
1981 | tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) { | |
e8b5e24e JB |
1982 | switch (nla_get_u32(nl_cmd)) { |
1983 | case NL80211_CMD_AUTHENTICATE: | |
1984 | auth_supported = 1; | |
1985 | break; | |
1986 | case NL80211_CMD_CONNECT: | |
1987 | connect_supported = 1; | |
1988 | break; | |
1989 | case NL80211_CMD_START_SCHED_SCAN: | |
1990 | capa->sched_scan_supported = 1; | |
1991 | break; | |
1992 | } | |
93d11400 ZY |
1993 | } |
1994 | } | |
1995 | ||
e8b5e24e JB |
1996 | if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { |
1997 | wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " | |
1998 | "off-channel TX"); | |
1999 | capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; | |
2000 | } | |
2001 | ||
2002 | if (tb[NL80211_ATTR_ROAM_SUPPORT]) { | |
2003 | wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); | |
2004 | capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; | |
2005 | } | |
5dfca53f | 2006 | |
e8b5e24e JB |
2007 | /* default to 5000 since early versions of mac80211 don't set it */ |
2008 | capa->max_remain_on_chan = 5000; | |
004ba773 | 2009 | |
89e07afb | 2010 | if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]) |
e8b5e24e | 2011 | capa->max_remain_on_chan = |
89e07afb JB |
2012 | nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); |
2013 | ||
e8b5e24e JB |
2014 | if (auth_supported) |
2015 | capa->flags |= WPA_DRIVER_FLAGS_SME; | |
2016 | else if (!connect_supported) { | |
2017 | wpa_printf(MSG_INFO, "nl80211: Driver does not support " | |
2018 | "authentication/association or connect commands"); | |
2019 | info->error = 1; | |
2020 | } | |
2021 | ||
2022 | if (p2p_go_supported && p2p_client_supported) | |
2023 | capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; | |
2024 | if (p2p_concurrent) { | |
2025 | wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " | |
2026 | "interface (driver advertised support)"); | |
2027 | capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; | |
2028 | capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; | |
2029 | } | |
2030 | ||
03ea1786 AN |
2031 | if (tb[NL80211_ATTR_TDLS_SUPPORT]) { |
2032 | wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); | |
2033 | capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; | |
2034 | ||
2035 | if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) { | |
2036 | wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); | |
2037 | capa->flags |= | |
2038 | WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; | |
2039 | } | |
2040 | } | |
2041 | ||
80bc75f1 JM |
2042 | return NL_SKIP; |
2043 | } | |
2044 | ||
2045 | ||
2046 | static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, | |
2047 | struct wiphy_info_data *info) | |
2048 | { | |
2049 | struct nl_msg *msg; | |
2050 | ||
2051 | os_memset(info, 0, sizeof(*info)); | |
e8b5e24e | 2052 | info->capa = &drv->capa; |
89e07afb | 2053 | |
80bc75f1 JM |
2054 | msg = nlmsg_alloc(); |
2055 | if (!msg) | |
2056 | return -1; | |
2057 | ||
9fb04070 | 2058 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); |
80bc75f1 | 2059 | |
a2e40bb6 | 2060 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex); |
80bc75f1 JM |
2061 | |
2062 | if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0) | |
2063 | return 0; | |
2064 | msg = NULL; | |
2065 | nla_put_failure: | |
2066 | nlmsg_free(msg); | |
2067 | return -1; | |
2068 | } | |
2069 | ||
2070 | ||
93d11400 | 2071 | static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) |
80bc75f1 JM |
2072 | { |
2073 | struct wiphy_info_data info; | |
2074 | if (wpa_driver_nl80211_get_info(drv, &info)) | |
93d11400 | 2075 | return -1; |
e8b5e24e JB |
2076 | |
2077 | if (info.error) | |
2078 | return -1; | |
2079 | ||
80bc75f1 | 2080 | drv->has_capability = 1; |
1b2a72e8 JM |
2081 | /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ |
2082 | drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | | |
2083 | WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | | |
2084 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | | |
2085 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; | |
2086 | drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | | |
2087 | WPA_DRIVER_CAPA_ENC_WEP104 | | |
2088 | WPA_DRIVER_CAPA_ENC_TKIP | | |
2089 | WPA_DRIVER_CAPA_ENC_CCMP; | |
291b6068 JM |
2090 | drv->capa.auth = WPA_DRIVER_AUTH_OPEN | |
2091 | WPA_DRIVER_AUTH_SHARED | | |
2092 | WPA_DRIVER_AUTH_LEAP; | |
1b2a72e8 | 2093 | |
871f4dd0 | 2094 | drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; |
0194fedb | 2095 | drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; |
2fee890a | 2096 | drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; |
4dc03726 | 2097 | drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; |
0194fedb | 2098 | |
93d11400 | 2099 | return 0; |
80bc75f1 JM |
2100 | } |
2101 | ||
2102 | ||
2a7b66f5 BG |
2103 | static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) |
2104 | { | |
2105 | global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); | |
2106 | if (global->nl_cb == NULL) { | |
2107 | wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " | |
2108 | "callbacks"); | |
2109 | return -1; | |
2110 | } | |
2111 | ||
276e2d67 BG |
2112 | if (nl_create_handles(&global->nl, global->nl_cb, "nl")) |
2113 | return -1; | |
2114 | ||
335d42b1 JB |
2115 | global->nl80211_id = genl_ctrl_resolve(global->nl.handle, "nl80211"); |
2116 | if (global->nl80211_id < 0) { | |
276e2d67 BG |
2117 | wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " |
2118 | "found"); | |
2119 | return -1; | |
2120 | } | |
2121 | ||
2a7b66f5 BG |
2122 | return 0; |
2123 | } | |
2124 | ||
2125 | ||
ba2d0d7d | 2126 | static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) |
3f5285e8 | 2127 | { |
2a7b66f5 | 2128 | struct nl80211_global *global = drv->global; |
9fff9fdc | 2129 | int ret; |
3f5285e8 | 2130 | |
9fff9fdc | 2131 | /* Initialize generic netlink and nl80211 */ |
3f5285e8 | 2132 | |
2a7b66f5 | 2133 | if (nl_create_handles(&drv->nl_event, global->nl_cb, "event")) |
9fff9fdc | 2134 | goto err3; |
9fff9fdc | 2135 | |
97865538 JM |
2136 | ret = nl_get_multicast_id(drv, "nl80211", "scan"); |
2137 | if (ret >= 0) | |
a92dfde8 | 2138 | ret = nl_socket_add_membership(drv->nl_event.handle, ret); |
97865538 JM |
2139 | if (ret < 0) { |
2140 | wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " | |
2141 | "membership for scan events: %d (%s)", | |
2142 | ret, strerror(-ret)); | |
2143 | goto err4; | |
2144 | } | |
c2a04078 JM |
2145 | |
2146 | ret = nl_get_multicast_id(drv, "nl80211", "mlme"); | |
2147 | if (ret >= 0) | |
a92dfde8 | 2148 | ret = nl_socket_add_membership(drv->nl_event.handle, ret); |
c2a04078 JM |
2149 | if (ret < 0) { |
2150 | wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " | |
2151 | "membership for mlme events: %d (%s)", | |
2152 | ret, strerror(-ret)); | |
2153 | goto err4; | |
2154 | } | |
c2a04078 | 2155 | |
33c5deb8 JM |
2156 | ret = nl_get_multicast_id(drv, "nl80211", "regulatory"); |
2157 | if (ret >= 0) | |
a92dfde8 | 2158 | ret = nl_socket_add_membership(drv->nl_event.handle, ret); |
33c5deb8 JM |
2159 | if (ret < 0) { |
2160 | wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " | |
2161 | "membership for regulatory events: %d (%s)", | |
2162 | ret, strerror(-ret)); | |
2163 | /* Continue without regulatory events */ | |
2164 | } | |
2165 | ||
a92dfde8 | 2166 | eloop_register_read_sock(nl_socket_get_fd(drv->nl_event.handle), |
5582a5d1 | 2167 | wpa_driver_nl80211_event_receive, drv, |
a92dfde8 | 2168 | drv->nl_event.handle); |
97865538 | 2169 | |
9fff9fdc JM |
2170 | return 0; |
2171 | ||
2172 | err4: | |
a92dfde8 | 2173 | nl_destroy_handles(&drv->nl_event); |
9fff9fdc | 2174 | err3: |
9fff9fdc JM |
2175 | return -1; |
2176 | } | |
2177 | ||
2178 | ||
8401a6b0 JM |
2179 | static void wpa_driver_nl80211_rfkill_blocked(void *ctx) |
2180 | { | |
8401a6b0 | 2181 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); |
a63063b4 JM |
2182 | /* |
2183 | * This may be for any interface; use ifdown event to disable | |
2184 | * interface. | |
2185 | */ | |
8401a6b0 JM |
2186 | } |
2187 | ||
2188 | ||
2189 | static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) | |
2190 | { | |
2191 | struct wpa_driver_nl80211_data *drv = ctx; | |
2192 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); | |
c81eff1a BG |
2193 | if (linux_set_iface_flags(drv->global->ioctl_sock, |
2194 | drv->first_bss.ifname, 1)) { | |
8401a6b0 JM |
2195 | wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " |
2196 | "after rfkill unblock"); | |
2197 | return; | |
2198 | } | |
a63063b4 | 2199 | /* rtnetlink ifup handler will report interface as enabled */ |
8401a6b0 JM |
2200 | } |
2201 | ||
2202 | ||
6859f1cb BG |
2203 | static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv) |
2204 | { | |
2205 | /* Find phy (radio) to which this interface belongs */ | |
2206 | char buf[90], *pos; | |
2207 | int f, rv; | |
2208 | ||
2209 | drv->phyname[0] = '\0'; | |
2210 | snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name", | |
2211 | drv->first_bss.ifname); | |
2212 | f = open(buf, O_RDONLY); | |
2213 | if (f < 0) { | |
2214 | wpa_printf(MSG_DEBUG, "Could not open file %s: %s", | |
2215 | buf, strerror(errno)); | |
2216 | return; | |
2217 | } | |
2218 | ||
2219 | rv = read(f, drv->phyname, sizeof(drv->phyname) - 1); | |
2220 | close(f); | |
2221 | if (rv < 0) { | |
2222 | wpa_printf(MSG_DEBUG, "Could not read file %s: %s", | |
2223 | buf, strerror(errno)); | |
2224 | return; | |
2225 | } | |
2226 | ||
2227 | drv->phyname[rv] = '\0'; | |
2228 | pos = os_strchr(drv->phyname, '\n'); | |
2229 | if (pos) | |
2230 | *pos = '\0'; | |
2231 | wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", | |
2232 | drv->first_bss.ifname, drv->phyname); | |
2233 | } | |
2234 | ||
2235 | ||
f10bfc9a JM |
2236 | #ifdef CONFIG_AP |
2237 | static void nl80211_l2_read(void *ctx, const u8 *src_addr, const u8 *buf, | |
2238 | size_t len) | |
2239 | { | |
2240 | wpa_printf(MSG_DEBUG, "nl80211: l2_packet read %u", | |
2241 | (unsigned int) len); | |
2242 | } | |
2243 | #endif /* CONFIG_AP */ | |
2244 | ||
2245 | ||
9fff9fdc JM |
2246 | /** |
2247 | * wpa_driver_nl80211_init - Initialize nl80211 driver interface | |
2248 | * @ctx: context to be used when calling wpa_supplicant functions, | |
2249 | * e.g., wpa_supplicant_event() | |
2250 | * @ifname: interface name, e.g., wlan0 | |
f2ed8023 | 2251 | * @global_priv: private driver global data from global_init() |
9fff9fdc JM |
2252 | * Returns: Pointer to private data, %NULL on failure |
2253 | */ | |
f2ed8023 JM |
2254 | static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, |
2255 | void *global_priv) | |
9fff9fdc | 2256 | { |
9fff9fdc | 2257 | struct wpa_driver_nl80211_data *drv; |
8401a6b0 | 2258 | struct rfkill_config *rcfg; |
a2e40bb6 | 2259 | struct i802_bss *bss; |
9fff9fdc | 2260 | |
a5c696ad JM |
2261 | if (global_priv == NULL) |
2262 | return NULL; | |
9fff9fdc JM |
2263 | drv = os_zalloc(sizeof(*drv)); |
2264 | if (drv == NULL) | |
2265 | return NULL; | |
f2ed8023 | 2266 | drv->global = global_priv; |
9fff9fdc | 2267 | drv->ctx = ctx; |
a2e40bb6 FF |
2268 | bss = &drv->first_bss; |
2269 | bss->drv = drv; | |
2270 | os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); | |
9fff9fdc JM |
2271 | drv->monitor_ifidx = -1; |
2272 | drv->monitor_sock = -1; | |
b1f625e0 | 2273 | drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; |
9fff9fdc | 2274 | |
ba2d0d7d | 2275 | if (wpa_driver_nl80211_init_nl(drv)) { |
bbaf0837 JM |
2276 | os_free(drv); |
2277 | return NULL; | |
2278 | } | |
9fff9fdc | 2279 | |
6859f1cb BG |
2280 | nl80211_get_phy_name(drv); |
2281 | ||
8401a6b0 JM |
2282 | rcfg = os_zalloc(sizeof(*rcfg)); |
2283 | if (rcfg == NULL) | |
2284 | goto failed; | |
2285 | rcfg->ctx = drv; | |
2286 | os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); | |
2287 | rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; | |
2288 | rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; | |
2289 | drv->rfkill = rfkill_init(rcfg); | |
52169389 | 2290 | if (drv->rfkill == NULL) { |
8401a6b0 | 2291 | wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); |
52169389 JM |
2292 | os_free(rcfg); |
2293 | } | |
8401a6b0 | 2294 | |
08063178 | 2295 | if (wpa_driver_nl80211_finish_drv_init(drv)) |
bbaf0837 | 2296 | goto failed; |
7524cfb1 | 2297 | |
f10bfc9a JM |
2298 | #ifdef CONFIG_AP |
2299 | drv->l2 = l2_packet_init(ifname, NULL, ETH_P_EAPOL, | |
2300 | nl80211_l2_read, drv, 0); | |
2301 | #endif /* CONFIG_AP */ | |
2302 | ||
dac12351 | 2303 | if (drv->global) { |
c4bb8817 | 2304 | dl_list_add(&drv->global->interfaces, &drv->list); |
dac12351 BG |
2305 | drv->in_interface_list = 1; |
2306 | } | |
c4bb8817 | 2307 | |
a2e40bb6 | 2308 | return bss; |
7524cfb1 | 2309 | |
bbaf0837 | 2310 | failed: |
dac12351 | 2311 | wpa_driver_nl80211_deinit(bss); |
7524cfb1 JM |
2312 | return NULL; |
2313 | } | |
2314 | ||
2315 | ||
bd94971e | 2316 | static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv, |
5582a5d1 | 2317 | struct nl_handle *nl_handle, |
bd94971e | 2318 | u16 type, const u8 *match, size_t match_len) |
58f6fbe0 JM |
2319 | { |
2320 | struct nl_msg *msg; | |
2321 | int ret = -1; | |
2322 | ||
2323 | msg = nlmsg_alloc(); | |
2324 | if (!msg) | |
2325 | return -1; | |
2326 | ||
9fb04070 | 2327 | nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); |
58f6fbe0 JM |
2328 | |
2329 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
bd94971e | 2330 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); |
58f6fbe0 JM |
2331 | NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); |
2332 | ||
5582a5d1 | 2333 | ret = send_and_recv(drv, nl_handle, msg, NULL, NULL); |
58f6fbe0 JM |
2334 | msg = NULL; |
2335 | if (ret) { | |
5582a5d1 JB |
2336 | wpa_printf(MSG_DEBUG, "nl80211: Register frame command " |
2337 | "failed (type=%u): ret=%d (%s)", | |
2338 | type, ret, strerror(-ret)); | |
2339 | wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", | |
58f6fbe0 JM |
2340 | match, match_len); |
2341 | goto nla_put_failure; | |
2342 | } | |
2343 | ret = 0; | |
2344 | nla_put_failure: | |
2345 | nlmsg_free(msg); | |
2346 | return ret; | |
2347 | } | |
2348 | ||
2349 | ||
bd94971e JB |
2350 | static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv, |
2351 | const u8 *match, size_t match_len) | |
2352 | { | |
2353 | u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); | |
a92dfde8 | 2354 | return nl80211_register_frame(drv, drv->nl_event.handle, |
5582a5d1 | 2355 | type, match, match_len); |
bd94971e JB |
2356 | } |
2357 | ||
2358 | ||
58f6fbe0 JM |
2359 | static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv) |
2360 | { | |
4fe9fa0d | 2361 | #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) |
046b26a2 JM |
2362 | /* GAS Initial Request */ |
2363 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0) | |
2364 | return -1; | |
2365 | /* GAS Initial Response */ | |
2366 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0) | |
2367 | return -1; | |
18708aad JM |
2368 | /* GAS Comeback Request */ |
2369 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0) | |
2370 | return -1; | |
2371 | /* GAS Comeback Response */ | |
2372 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0) | |
2373 | return -1; | |
4fe9fa0d JM |
2374 | #endif /* CONFIG_P2P || CONFIG_INTERWORKING */ |
2375 | #ifdef CONFIG_P2P | |
046b26a2 JM |
2376 | /* P2P Public Action */ |
2377 | if (nl80211_register_action_frame(drv, | |
2378 | (u8 *) "\x04\x09\x50\x6f\x9a\x09", | |
2379 | 6) < 0) | |
2380 | return -1; | |
2381 | /* P2P Action */ | |
2382 | if (nl80211_register_action_frame(drv, | |
2383 | (u8 *) "\x7f\x50\x6f\x9a\x09", | |
2384 | 5) < 0) | |
2385 | return -1; | |
2386 | #endif /* CONFIG_P2P */ | |
7d878ca7 JM |
2387 | #ifdef CONFIG_IEEE80211W |
2388 | /* SA Query Response */ | |
2389 | if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0) | |
2390 | return -1; | |
2391 | #endif /* CONFIG_IEEE80211W */ | |
35287637 AN |
2392 | #ifdef CONFIG_TDLS |
2393 | if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { | |
2394 | /* TDLS Discovery Response */ | |
2395 | if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0e", 2) < | |
2396 | 0) | |
2397 | return -1; | |
2398 | } | |
2399 | #endif /* CONFIG_TDLS */ | |
046b26a2 | 2400 | |
7b90c16a JM |
2401 | /* FT Action frames */ |
2402 | if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0) | |
2403 | return -1; | |
2404 | else | |
2405 | drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | | |
2406 | WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; | |
2407 | ||
71269b37 JM |
2408 | /* WNM - BSS Transition Management Request */ |
2409 | if (nl80211_register_action_frame(drv, (u8 *) "\x0a\x07", 2) < 0) | |
2410 | return -1; | |
2411 | ||
58f6fbe0 JM |
2412 | return 0; |
2413 | } | |
2414 | ||
2415 | ||
8401a6b0 JM |
2416 | static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) |
2417 | { | |
2418 | wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); | |
2419 | } | |
2420 | ||
2421 | ||
362f781e | 2422 | static int |
7524cfb1 JM |
2423 | wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) |
2424 | { | |
a2e40bb6 | 2425 | struct i802_bss *bss = &drv->first_bss; |
8401a6b0 | 2426 | int send_rfkill_event = 0; |
a2e40bb6 FF |
2427 | |
2428 | drv->ifindex = if_nametoindex(bss->ifname); | |
2429 | drv->first_bss.ifindex = drv->ifindex; | |
a87c9d96 | 2430 | |
bbaf0837 | 2431 | #ifndef HOSTAPD |
ff6a158b JM |
2432 | /* |
2433 | * Make sure the interface starts up in station mode unless this is a | |
2434 | * dynamically added interface (e.g., P2P) that was already configured | |
2435 | * with proper iftype. | |
2436 | */ | |
a5c696ad | 2437 | if (drv->ifindex != drv->global->if_add_ifindex && |
b1f625e0 | 2438 | wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) { |
6e8183d7 | 2439 | wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to " |
a87c9d96 | 2440 | "use managed mode"); |
6e8183d7 | 2441 | return -1; |
a87c9d96 JM |
2442 | } |
2443 | ||
c81eff1a | 2444 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { |
8401a6b0 JM |
2445 | if (rfkill_is_blocked(drv->rfkill)) { |
2446 | wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " | |
2447 | "interface '%s' due to rfkill", | |
2448 | bss->ifname); | |
a63063b4 | 2449 | drv->if_disabled = 1; |
8401a6b0 JM |
2450 | send_rfkill_event = 1; |
2451 | } else { | |
2452 | wpa_printf(MSG_ERROR, "nl80211: Could not set " | |
2453 | "interface '%s' UP", bss->ifname); | |
2454 | return -1; | |
2455 | } | |
362f781e | 2456 | } |
3f5285e8 | 2457 | |
36d84860 | 2458 | netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, |
e2d02c29 | 2459 | 1, IF_OPER_DORMANT); |
bbaf0837 | 2460 | #endif /* HOSTAPD */ |
362f781e | 2461 | |
2fee890a JM |
2462 | if (wpa_driver_nl80211_capa(drv)) |
2463 | return -1; | |
2464 | ||
c81eff1a BG |
2465 | if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
2466 | drv->addr)) | |
2136f480 | 2467 | return -1; |
f2ed8023 | 2468 | |
7b90c16a JM |
2469 | if (nl80211_register_action_frames(drv) < 0) { |
2470 | wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " | |
2471 | "frame processing - ignore for now"); | |
2472 | /* | |
2473 | * Older kernel versions did not support this, so ignore the | |
2474 | * error for now. Some functionality may not be available | |
2475 | * because of this. | |
2476 | */ | |
2477 | } | |
58f6fbe0 | 2478 | |
8401a6b0 JM |
2479 | if (send_rfkill_event) { |
2480 | eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, | |
2481 | drv, drv->ctx); | |
2482 | } | |
2483 | ||
362f781e | 2484 | return 0; |
3f5285e8 JM |
2485 | } |
2486 | ||
2487 | ||
8a27af5c JM |
2488 | static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) |
2489 | { | |
2490 | struct nl_msg *msg; | |
2491 | ||
2492 | msg = nlmsg_alloc(); | |
2493 | if (!msg) | |
2494 | return -ENOMEM; | |
2495 | ||
9fb04070 | 2496 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); |
8a27af5c JM |
2497 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
2498 | ||
2499 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
2500 | nla_put_failure: | |
2501 | return -ENOBUFS; | |
2502 | } | |
8a27af5c JM |
2503 | |
2504 | ||
3f5285e8 | 2505 | /** |
7e5ba1b9 JM |
2506 | * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface |
2507 | * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init() | |
3f5285e8 JM |
2508 | * |
2509 | * Shut down driver interface and processing of driver events. Free | |
2510 | * private data buffer if one was allocated in wpa_driver_nl80211_init(). | |
2511 | */ | |
7e5ba1b9 | 2512 | static void wpa_driver_nl80211_deinit(void *priv) |
3f5285e8 | 2513 | { |
a2e40bb6 FF |
2514 | struct i802_bss *bss = priv; |
2515 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 | 2516 | |
f10bfc9a JM |
2517 | #ifdef CONFIG_AP |
2518 | if (drv->l2) | |
2519 | l2_packet_deinit(drv->l2); | |
2520 | #endif /* CONFIG_AP */ | |
2521 | ||
a92dfde8 | 2522 | if (drv->nl_preq.handle) |
5582a5d1 | 2523 | wpa_driver_nl80211_probe_req_report(bss, 0); |
e17a2477 | 2524 | if (bss->added_if_into_bridge) { |
c81eff1a BG |
2525 | if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, |
2526 | bss->ifname) < 0) | |
94627f6c JM |
2527 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
2528 | "interface %s from bridge %s: %s", | |
e17a2477 | 2529 | bss->ifname, bss->brname, strerror(errno)); |
94627f6c | 2530 | } |
e17a2477 | 2531 | if (bss->added_bridge) { |
c81eff1a | 2532 | if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) |
94627f6c JM |
2533 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
2534 | "bridge %s: %s", | |
e17a2477 | 2535 | bss->brname, strerror(errno)); |
94627f6c JM |
2536 | } |
2537 | ||
460456f8 | 2538 | nl80211_remove_monitor_interface(drv); |
8a27af5c | 2539 | |
b1f625e0 | 2540 | if (is_ap_interface(drv->nlmode)) |
8a27af5c | 2541 | wpa_driver_nl80211_del_beacon(drv); |
0915d02c | 2542 | |
bbaf0837 JM |
2543 | #ifdef HOSTAPD |
2544 | if (drv->last_freq_ht) { | |
2545 | /* Clear HT flags from the driver */ | |
2546 | struct hostapd_freq_params freq; | |
2547 | os_memset(&freq, 0, sizeof(freq)); | |
2548 | freq.freq = drv->last_freq; | |
2549 | i802_set_freq(priv, &freq); | |
2550 | } | |
2551 | ||
bbaf0837 JM |
2552 | if (drv->eapol_sock >= 0) { |
2553 | eloop_unregister_read_sock(drv->eapol_sock); | |
2554 | close(drv->eapol_sock); | |
2555 | } | |
2556 | ||
2557 | if (drv->if_indices != drv->default_if_indices) | |
2558 | os_free(drv->if_indices); | |
1b648c7e | 2559 | #endif /* HOSTAPD */ |
3f5285e8 | 2560 | |
b3af99d2 | 2561 | if (drv->disabled_11b_rates) |
4e5cb1a3 JM |
2562 | nl80211_disable_11b_rates(drv, drv->ifindex, 0); |
2563 | ||
36d84860 BG |
2564 | netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, |
2565 | IF_OPER_UP); | |
8401a6b0 | 2566 | rfkill_deinit(drv->rfkill); |
3f5285e8 | 2567 | |
bbaf0837 JM |
2568 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); |
2569 | ||
c81eff1a | 2570 | (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0); |
b1f625e0 | 2571 | wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); |
3f5285e8 | 2572 | |
a92dfde8 | 2573 | eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_event.handle)); |
a92dfde8 | 2574 | nl_destroy_handles(&drv->nl_event); |
3f5285e8 | 2575 | |
3812464c JM |
2576 | os_free(drv->filter_ssids); |
2577 | ||
dac12351 | 2578 | if (drv->in_interface_list) |
f2ed8023 JM |
2579 | dl_list_del(&drv->list); |
2580 | ||
3f5285e8 JM |
2581 | os_free(drv); |
2582 | } | |
2583 | ||
2584 | ||
2585 | /** | |
2586 | * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion | |
ad1e68e6 | 2587 | * @eloop_ctx: Driver private data |
3f5285e8 JM |
2588 | * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() |
2589 | * | |
2590 | * This function can be used as registered timeout when starting a scan to | |
2591 | * generate a scan completed event if the driver does not report this. | |
2592 | */ | |
2593 | static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) | |
2594 | { | |
ad1e68e6 | 2595 | struct wpa_driver_nl80211_data *drv = eloop_ctx; |
b1f625e0 | 2596 | if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { |
a2e40bb6 | 2597 | wpa_driver_nl80211_set_mode(&drv->first_bss, |
b1f625e0 EP |
2598 | drv->ap_scan_as_station); |
2599 | drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; | |
ad1e68e6 | 2600 | } |
3f5285e8 JM |
2601 | wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); |
2602 | wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); | |
2603 | } | |
2604 | ||
2605 | ||
2606 | /** | |
2607 | * wpa_driver_nl80211_scan - Request the driver to initiate scan | |
ad1e68e6 | 2608 | * @priv: Pointer to private driver data from wpa_driver_nl80211_init() |
6a1063e0 | 2609 | * @params: Scan parameters |
3f5285e8 JM |
2610 | * Returns: 0 on success, -1 on failure |
2611 | */ | |
6a1063e0 JM |
2612 | static int wpa_driver_nl80211_scan(void *priv, |
2613 | struct wpa_driver_scan_params *params) | |
3f5285e8 | 2614 | { |
a2e40bb6 FF |
2615 | struct i802_bss *bss = priv; |
2616 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 | 2617 | int ret = 0, timeout; |
47185fc7 | 2618 | struct nl_msg *msg, *ssids, *freqs, *rates; |
6a1063e0 | 2619 | size_t i; |
3f5285e8 | 2620 | |
0e75527f JM |
2621 | msg = nlmsg_alloc(); |
2622 | ssids = nlmsg_alloc(); | |
d3a98225 | 2623 | freqs = nlmsg_alloc(); |
47185fc7 RM |
2624 | rates = nlmsg_alloc(); |
2625 | if (!msg || !ssids || !freqs || !rates) { | |
0e75527f JM |
2626 | nlmsg_free(msg); |
2627 | nlmsg_free(ssids); | |
d3a98225 | 2628 | nlmsg_free(freqs); |
47185fc7 | 2629 | nlmsg_free(rates); |
3f5285e8 JM |
2630 | return -1; |
2631 | } | |
2632 | ||
3812464c JM |
2633 | os_free(drv->filter_ssids); |
2634 | drv->filter_ssids = params->filter_ssids; | |
2635 | params->filter_ssids = NULL; | |
2636 | drv->num_filter_ssids = params->num_filter_ssids; | |
2637 | ||
9fb04070 | 2638 | nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN); |
0e75527f JM |
2639 | |
2640 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3f5285e8 | 2641 | |
6a1063e0 | 2642 | for (i = 0; i < params->num_ssids; i++) { |
9fad706c JM |
2643 | wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", |
2644 | params->ssids[i].ssid, | |
2645 | params->ssids[i].ssid_len); | |
6a1063e0 JM |
2646 | NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len, |
2647 | params->ssids[i].ssid); | |
3f5285e8 | 2648 | } |
6a1063e0 JM |
2649 | if (params->num_ssids) |
2650 | nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
3f5285e8 | 2651 | |
d173df52 | 2652 | if (params->extra_ies) { |
9fad706c JM |
2653 | wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs", |
2654 | params->extra_ies, params->extra_ies_len); | |
d173df52 JM |
2655 | NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len, |
2656 | params->extra_ies); | |
2657 | } | |
2658 | ||
d3a98225 | 2659 | if (params->freqs) { |
9fad706c JM |
2660 | for (i = 0; params->freqs[i]; i++) { |
2661 | wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " | |
2662 | "MHz", params->freqs[i]); | |
d3a98225 | 2663 | NLA_PUT_U32(freqs, i + 1, params->freqs[i]); |
9fad706c | 2664 | } |
d3a98225 JM |
2665 | nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs); |
2666 | } | |
2667 | ||
47185fc7 RM |
2668 | if (params->p2p_probe) { |
2669 | /* | |
2670 | * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates | |
2671 | * by masking out everything else apart from the OFDM rates 6, | |
2672 | * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz | |
2673 | * rates are left enabled. | |
2674 | */ | |
2675 | NLA_PUT(rates, NL80211_BAND_2GHZ, 8, | |
2676 | "\x0c\x12\x18\x24\x30\x48\x60\x6c"); | |
2677 | nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates); | |
970fa12e RM |
2678 | |
2679 | NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); | |
47185fc7 RM |
2680 | } |
2681 | ||
0e75527f JM |
2682 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
2683 | msg = NULL; | |
2684 | if (ret) { | |
2685 | wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " | |
2686 | "(%s)", ret, strerror(-ret)); | |
ad1e68e6 | 2687 | #ifdef HOSTAPD |
b1f625e0 | 2688 | if (is_ap_interface(drv->nlmode)) { |
ad1e68e6 JM |
2689 | /* |
2690 | * mac80211 does not allow scan requests in AP mode, so | |
2691 | * try to do this in station mode. | |
2692 | */ | |
b1f625e0 EP |
2693 | if (wpa_driver_nl80211_set_mode( |
2694 | bss, NL80211_IFTYPE_STATION)) | |
ad1e68e6 JM |
2695 | goto nla_put_failure; |
2696 | ||
2697 | if (wpa_driver_nl80211_scan(drv, params)) { | |
b1f625e0 | 2698 | wpa_driver_nl80211_set_mode(bss, drv->nlmode); |
ad1e68e6 JM |
2699 | goto nla_put_failure; |
2700 | } | |
2701 | ||
2702 | /* Restore AP mode when processing scan results */ | |
b1f625e0 | 2703 | drv->ap_scan_as_station = drv->nlmode; |
ad1e68e6 JM |
2704 | ret = 0; |
2705 | } else | |
2706 | goto nla_put_failure; | |
2707 | #else /* HOSTAPD */ | |
0e75527f | 2708 | goto nla_put_failure; |
ad1e68e6 | 2709 | #endif /* HOSTAPD */ |
3f5285e8 JM |
2710 | } |
2711 | ||
2712 | /* Not all drivers generate "scan completed" wireless event, so try to | |
2713 | * read results after a timeout. */ | |
0e75527f | 2714 | timeout = 10; |
3f5285e8 JM |
2715 | if (drv->scan_complete_events) { |
2716 | /* | |
d173df52 JM |
2717 | * The driver seems to deliver events to notify when scan is |
2718 | * complete, so use longer timeout to avoid race conditions | |
2719 | * with scanning and following association request. | |
3f5285e8 JM |
2720 | */ |
2721 | timeout = 30; | |
2722 | } | |
2723 | wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " | |
2724 | "seconds", ret, timeout); | |
2725 | eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); | |
0e75527f JM |
2726 | eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, |
2727 | drv, drv->ctx); | |
3f5285e8 | 2728 | |
0e75527f JM |
2729 | nla_put_failure: |
2730 | nlmsg_free(ssids); | |
2731 | nlmsg_free(msg); | |
d3a98225 | 2732 | nlmsg_free(freqs); |
47185fc7 | 2733 | nlmsg_free(rates); |
3f5285e8 JM |
2734 | return ret; |
2735 | } | |
2736 | ||
2737 | ||
d21c63b9 LC |
2738 | /** |
2739 | * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan | |
2740 | * @priv: Pointer to private driver data from wpa_driver_nl80211_init() | |
2741 | * @params: Scan parameters | |
2742 | * @interval: Interval between scan cycles in milliseconds | |
2743 | * Returns: 0 on success, -1 on failure or if not supported | |
2744 | */ | |
2745 | static int wpa_driver_nl80211_sched_scan(void *priv, | |
2746 | struct wpa_driver_scan_params *params, | |
2747 | u32 interval) | |
2748 | { | |
2749 | struct i802_bss *bss = priv; | |
2750 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
2751 | int ret = 0; | |
bd525934 | 2752 | struct nl_msg *msg, *ssids, *freqs, *match_set_ssid, *match_sets; |
d21c63b9 LC |
2753 | size_t i; |
2754 | ||
2755 | msg = nlmsg_alloc(); | |
2756 | ssids = nlmsg_alloc(); | |
2757 | freqs = nlmsg_alloc(); | |
2758 | if (!msg || !ssids || !freqs) { | |
2759 | nlmsg_free(msg); | |
2760 | nlmsg_free(ssids); | |
2761 | nlmsg_free(freqs); | |
2762 | return -1; | |
2763 | } | |
2764 | ||
2765 | os_free(drv->filter_ssids); | |
2766 | drv->filter_ssids = params->filter_ssids; | |
2767 | params->filter_ssids = NULL; | |
2768 | drv->num_filter_ssids = params->num_filter_ssids; | |
2769 | ||
9fb04070 | 2770 | nl80211_cmd(drv, msg, 0, NL80211_CMD_START_SCHED_SCAN); |
d21c63b9 LC |
2771 | |
2772 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
2773 | ||
2774 | NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); | |
2775 | ||
bd525934 LC |
2776 | if (drv->num_filter_ssids) { |
2777 | match_sets = nlmsg_alloc(); | |
2778 | ||
2779 | for (i = 0; i < drv->num_filter_ssids; i++) { | |
2780 | wpa_hexdump_ascii(MSG_MSGDUMP, | |
2781 | "nl80211: Sched scan filter SSID", | |
2782 | drv->filter_ssids[i].ssid, | |
2783 | drv->filter_ssids[i].ssid_len); | |
2784 | ||
2785 | match_set_ssid = nlmsg_alloc(); | |
2786 | nla_put(match_set_ssid, | |
2787 | NL80211_ATTR_SCHED_SCAN_MATCH_SSID, | |
2788 | drv->filter_ssids[i].ssid_len, | |
2789 | drv->filter_ssids[i].ssid); | |
2790 | ||
2791 | nla_put_nested(match_sets, i + 1, match_set_ssid); | |
2792 | ||
2793 | nlmsg_free(match_set_ssid); | |
2794 | } | |
2795 | ||
2796 | nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH, | |
2797 | match_sets); | |
2798 | nlmsg_free(match_sets); | |
2799 | } | |
2800 | ||
d21c63b9 LC |
2801 | for (i = 0; i < params->num_ssids; i++) { |
2802 | wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID", | |
2803 | params->ssids[i].ssid, | |
2804 | params->ssids[i].ssid_len); | |
2805 | NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len, | |
2806 | params->ssids[i].ssid); | |
2807 | } | |
2808 | if (params->num_ssids) | |
2809 | nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
2810 | ||
2811 | if (params->extra_ies) { | |
2812 | wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs", | |
2813 | params->extra_ies, params->extra_ies_len); | |
2814 | NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len, | |
2815 | params->extra_ies); | |
2816 | } | |
2817 | ||
2818 | if (params->freqs) { | |
2819 | for (i = 0; params->freqs[i]; i++) { | |
2820 | wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " | |
2821 | "MHz", params->freqs[i]); | |
2822 | NLA_PUT_U32(freqs, i + 1, params->freqs[i]); | |
2823 | } | |
2824 | nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs); | |
2825 | } | |
2826 | ||
2827 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
2828 | ||
2829 | /* TODO: if we get an error here, we should fall back to normal scan */ | |
2830 | ||
2831 | msg = NULL; | |
2832 | if (ret) { | |
2833 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " | |
2834 | "ret=%d (%s)", ret, strerror(-ret)); | |
2835 | goto nla_put_failure; | |
2836 | } | |
2837 | ||
2838 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " | |
2839 | "scan interval %d msec", ret, interval); | |
2840 | ||
2841 | nla_put_failure: | |
2842 | nlmsg_free(ssids); | |
2843 | nlmsg_free(msg); | |
2844 | nlmsg_free(freqs); | |
2845 | return ret; | |
2846 | } | |
2847 | ||
2848 | ||
2849 | /** | |
2850 | * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan | |
2851 | * @priv: Pointer to private driver data from wpa_driver_nl80211_init() | |
2852 | * Returns: 0 on success, -1 on failure or if not supported | |
2853 | */ | |
2854 | static int wpa_driver_nl80211_stop_sched_scan(void *priv) | |
2855 | { | |
2856 | struct i802_bss *bss = priv; | |
2857 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
2858 | int ret = 0; | |
2859 | struct nl_msg *msg; | |
2860 | ||
2861 | msg = nlmsg_alloc(); | |
2862 | if (!msg) | |
2863 | return -1; | |
2864 | ||
9fb04070 | 2865 | nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); |
d21c63b9 LC |
2866 | |
2867 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
2868 | ||
2869 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
2870 | msg = NULL; | |
2871 | if (ret) { | |
2872 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " | |
2873 | "ret=%d (%s)", ret, strerror(-ret)); | |
2874 | goto nla_put_failure; | |
2875 | } | |
2876 | ||
2877 | wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); | |
2878 | ||
2879 | nla_put_failure: | |
2880 | nlmsg_free(msg); | |
2881 | return ret; | |
2882 | } | |
2883 | ||
2884 | ||
3812464c JM |
2885 | static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) |
2886 | { | |
2887 | const u8 *end, *pos; | |
2888 | ||
2889 | if (ies == NULL) | |
2890 | return NULL; | |
2891 | ||
2892 | pos = ies; | |
2893 | end = ies + ies_len; | |
2894 | ||
2895 | while (pos + 1 < end) { | |
2896 | if (pos + 2 + pos[1] > end) | |
2897 | break; | |
2898 | if (pos[0] == ie) | |
2899 | return pos; | |
2900 | pos += 2 + pos[1]; | |
2901 | } | |
2902 | ||
2903 | return NULL; | |
2904 | } | |
2905 | ||
2906 | ||
2907 | static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, | |
2908 | const u8 *ie, size_t ie_len) | |
2909 | { | |
2910 | const u8 *ssid; | |
2911 | size_t i; | |
2912 | ||
2913 | if (drv->filter_ssids == NULL) | |
2914 | return 0; | |
2915 | ||
2916 | ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); | |
2917 | if (ssid == NULL) | |
2918 | return 1; | |
2919 | ||
2920 | for (i = 0; i < drv->num_filter_ssids; i++) { | |
2921 | if (ssid[1] == drv->filter_ssids[i].ssid_len && | |
2922 | os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == | |
2923 | 0) | |
2924 | return 0; | |
2925 | } | |
2926 | ||
2927 | return 1; | |
2928 | } | |
2929 | ||
2930 | ||
b3db1e1c | 2931 | static int bss_info_handler(struct nl_msg *msg, void *arg) |
3f5285e8 | 2932 | { |
b3db1e1c JM |
2933 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
2934 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
2935 | struct nlattr *bss[NL80211_BSS_MAX + 1]; | |
2936 | static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { | |
2937 | [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, | |
2938 | [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, | |
2939 | [NL80211_BSS_TSF] = { .type = NLA_U64 }, | |
2940 | [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, | |
2941 | [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, | |
2942 | [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, | |
2943 | [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, | |
2944 | [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, | |
e6b8efeb | 2945 | [NL80211_BSS_STATUS] = { .type = NLA_U32 }, |
b3ad11bb | 2946 | [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, |
8c090654 | 2947 | [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, |
b3db1e1c | 2948 | }; |
3812464c JM |
2949 | struct nl80211_bss_info_arg *_arg = arg; |
2950 | struct wpa_scan_results *res = _arg->res; | |
3f5285e8 JM |
2951 | struct wpa_scan_res **tmp; |
2952 | struct wpa_scan_res *r; | |
8c090654 JM |
2953 | const u8 *ie, *beacon_ie; |
2954 | size_t ie_len, beacon_ie_len; | |
2955 | u8 *pos; | |
46957a9b | 2956 | size_t i; |
3f5285e8 | 2957 | |
b3db1e1c JM |
2958 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
2959 | genlmsg_attrlen(gnlh, 0), NULL); | |
2960 | if (!tb[NL80211_ATTR_BSS]) | |
2961 | return NL_SKIP; | |
2962 | if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], | |
2963 | bss_policy)) | |
2964 | return NL_SKIP; | |
f5a8d422 JM |
2965 | if (bss[NL80211_BSS_STATUS]) { |
2966 | enum nl80211_bss_status status; | |
2967 | status = nla_get_u32(bss[NL80211_BSS_STATUS]); | |
2968 | if (status == NL80211_BSS_STATUS_ASSOCIATED && | |
2969 | bss[NL80211_BSS_FREQUENCY]) { | |
2970 | _arg->assoc_freq = | |
2971 | nla_get_u32(bss[NL80211_BSS_FREQUENCY]); | |
2972 | wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", | |
2973 | _arg->assoc_freq); | |
2974 | } | |
20f5a4c2 JM |
2975 | if (status == NL80211_BSS_STATUS_ASSOCIATED && |
2976 | bss[NL80211_BSS_BSSID]) { | |
2977 | os_memcpy(_arg->assoc_bssid, | |
2978 | nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); | |
2979 | wpa_printf(MSG_DEBUG, "nl80211: Associated with " | |
2980 | MACSTR, MAC2STR(_arg->assoc_bssid)); | |
2981 | } | |
f5a8d422 JM |
2982 | } |
2983 | if (!res) | |
2984 | return NL_SKIP; | |
b3db1e1c JM |
2985 | if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { |
2986 | ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); | |
2987 | ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); | |
2988 | } else { | |
2989 | ie = NULL; | |
2990 | ie_len = 0; | |
2991 | } | |
8c090654 JM |
2992 | if (bss[NL80211_BSS_BEACON_IES]) { |
2993 | beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); | |
2994 | beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); | |
2995 | } else { | |
2996 | beacon_ie = NULL; | |
2997 | beacon_ie_len = 0; | |
2998 | } | |
3f5285e8 | 2999 | |
3812464c JM |
3000 | if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, |
3001 | ie ? ie_len : beacon_ie_len)) | |
3002 | return NL_SKIP; | |
3003 | ||
8c090654 | 3004 | r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); |
3f5285e8 | 3005 | if (r == NULL) |
b3db1e1c JM |
3006 | return NL_SKIP; |
3007 | if (bss[NL80211_BSS_BSSID]) | |
3008 | os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), | |
3009 | ETH_ALEN); | |
3010 | if (bss[NL80211_BSS_FREQUENCY]) | |
3011 | r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); | |
3012 | if (bss[NL80211_BSS_BEACON_INTERVAL]) | |
3013 | r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); | |
3014 | if (bss[NL80211_BSS_CAPABILITY]) | |
3015 | r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); | |
7c2849d2 JM |
3016 | r->flags |= WPA_SCAN_NOISE_INVALID; |
3017 | if (bss[NL80211_BSS_SIGNAL_MBM]) { | |
b3db1e1c | 3018 | r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); |
7c2849d2 JM |
3019 | r->level /= 100; /* mBm to dBm */ |
3020 | r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; | |
3021 | } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { | |
3022 | r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); | |
3023 | r->flags |= WPA_SCAN_LEVEL_INVALID; | |
3024 | } else | |
3025 | r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; | |
b3db1e1c JM |
3026 | if (bss[NL80211_BSS_TSF]) |
3027 | r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); | |
b3ad11bb JM |
3028 | if (bss[NL80211_BSS_SEEN_MS_AGO]) |
3029 | r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); | |
b3db1e1c | 3030 | r->ie_len = ie_len; |
8c090654 JM |
3031 | pos = (u8 *) (r + 1); |
3032 | if (ie) { | |
3033 | os_memcpy(pos, ie, ie_len); | |
3034 | pos += ie_len; | |
3035 | } | |
3036 | r->beacon_ie_len = beacon_ie_len; | |
3037 | if (beacon_ie) | |
3038 | os_memcpy(pos, beacon_ie, beacon_ie_len); | |
3f5285e8 | 3039 | |
e6b8efeb JM |
3040 | if (bss[NL80211_BSS_STATUS]) { |
3041 | enum nl80211_bss_status status; | |
3042 | status = nla_get_u32(bss[NL80211_BSS_STATUS]); | |
3043 | switch (status) { | |
3044 | case NL80211_BSS_STATUS_AUTHENTICATED: | |
3045 | r->flags |= WPA_SCAN_AUTHENTICATED; | |
3046 | break; | |
3047 | case NL80211_BSS_STATUS_ASSOCIATED: | |
3048 | r->flags |= WPA_SCAN_ASSOCIATED; | |
3049 | break; | |
3050 | default: | |
3051 | break; | |
3052 | } | |
3053 | } | |
3054 | ||
46957a9b JM |
3055 | /* |
3056 | * cfg80211 maintains separate BSS table entries for APs if the same | |
3057 | * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does | |
3058 | * not use frequency as a separate key in the BSS table, so filter out | |
3059 | * duplicated entries. Prefer associated BSS entry in such a case in | |
3060 | * order to get the correct frequency into the BSS table. | |
3061 | */ | |
3062 | for (i = 0; i < res->num; i++) { | |
3063 | const u8 *s1, *s2; | |
3064 | if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) | |
3065 | continue; | |
3066 | ||
3067 | s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), | |
3068 | res->res[i]->ie_len, WLAN_EID_SSID); | |
3069 | s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); | |
3070 | if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || | |
3071 | os_memcmp(s1, s2, 2 + s1[1]) != 0) | |
3072 | continue; | |
3073 | ||
3074 | /* Same BSSID,SSID was already included in scan results */ | |
3075 | wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " | |
3076 | "for " MACSTR, MAC2STR(r->bssid)); | |
3077 | ||
3078 | if ((r->flags & WPA_SCAN_ASSOCIATED) && | |
3079 | !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { | |
3080 | os_free(res->res[i]); | |
3081 | res->res[i] = r; | |
3082 | } else | |
3083 | os_free(r); | |
3084 | return NL_SKIP; | |
3085 | } | |
3086 | ||
3f5285e8 JM |
3087 | tmp = os_realloc(res->res, |
3088 | (res->num + 1) * sizeof(struct wpa_scan_res *)); | |
3089 | if (tmp == NULL) { | |
3090 | os_free(r); | |
b3db1e1c | 3091 | return NL_SKIP; |
3f5285e8 JM |
3092 | } |
3093 | tmp[res->num++] = r; | |
3094 | res->res = tmp; | |
b3db1e1c JM |
3095 | |
3096 | return NL_SKIP; | |
3f5285e8 | 3097 | } |
b3db1e1c | 3098 | |
3f5285e8 | 3099 | |
d72aad94 JM |
3100 | static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, |
3101 | const u8 *addr) | |
3102 | { | |
3103 | if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { | |
3104 | wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " | |
582507be | 3105 | "mismatch (" MACSTR ")", MAC2STR(addr)); |
d72aad94 JM |
3106 | wpa_driver_nl80211_mlme(drv, addr, |
3107 | NL80211_CMD_DEAUTHENTICATE, | |
77339912 | 3108 | WLAN_REASON_PREV_AUTH_NOT_VALID, 1); |
d72aad94 JM |
3109 | } |
3110 | } | |
3111 | ||
3112 | ||
e6b8efeb JM |
3113 | static void wpa_driver_nl80211_check_bss_status( |
3114 | struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) | |
3115 | { | |
3116 | size_t i; | |
3117 | ||
3118 | for (i = 0; i < res->num; i++) { | |
3119 | struct wpa_scan_res *r = res->res[i]; | |
3120 | if (r->flags & WPA_SCAN_AUTHENTICATED) { | |
3121 | wpa_printf(MSG_DEBUG, "nl80211: Scan results " | |
3122 | "indicates BSS status with " MACSTR | |
3123 | " as authenticated", | |
3124 | MAC2STR(r->bssid)); | |
b1f625e0 | 3125 | if (is_sta_interface(drv->nlmode) && |
e6b8efeb JM |
3126 | os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && |
3127 | os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != | |
3128 | 0) { | |
3129 | wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" | |
3130 | " in local state (auth=" MACSTR | |
3131 | " assoc=" MACSTR ")", | |
3132 | MAC2STR(drv->auth_bssid), | |
3133 | MAC2STR(drv->bssid)); | |
582507be | 3134 | clear_state_mismatch(drv, r->bssid); |
e6b8efeb JM |
3135 | } |
3136 | } | |
3137 | ||
3138 | if (r->flags & WPA_SCAN_ASSOCIATED) { | |
3139 | wpa_printf(MSG_DEBUG, "nl80211: Scan results " | |
3140 | "indicate BSS status with " MACSTR | |
3141 | " as associated", | |
3142 | MAC2STR(r->bssid)); | |
b1f625e0 | 3143 | if (is_sta_interface(drv->nlmode) && |
e6b8efeb JM |
3144 | !drv->associated) { |
3145 | wpa_printf(MSG_DEBUG, "nl80211: Local state " | |
3146 | "(not associated) does not match " | |
3147 | "with BSS state"); | |
d72aad94 | 3148 | clear_state_mismatch(drv, r->bssid); |
b1f625e0 | 3149 | } else if (is_sta_interface(drv->nlmode) && |
e6b8efeb JM |
3150 | os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != |
3151 | 0) { | |
3152 | wpa_printf(MSG_DEBUG, "nl80211: Local state " | |
3153 | "(associated with " MACSTR ") does " | |
3154 | "not match with BSS state", | |
d72aad94 JM |
3155 | MAC2STR(drv->bssid)); |
3156 | clear_state_mismatch(drv, r->bssid); | |
3157 | clear_state_mismatch(drv, drv->bssid); | |
e6b8efeb JM |
3158 | } |
3159 | } | |
3160 | } | |
3161 | } | |
3162 | ||
3163 | ||
7e5ba1b9 | 3164 | static struct wpa_scan_results * |
8856462d | 3165 | nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) |
3f5285e8 | 3166 | { |
b3db1e1c | 3167 | struct nl_msg *msg; |
3f5285e8 | 3168 | struct wpa_scan_results *res; |
b3db1e1c | 3169 | int ret; |
3812464c | 3170 | struct nl80211_bss_info_arg arg; |
3f5285e8 JM |
3171 | |
3172 | res = os_zalloc(sizeof(*res)); | |
b3db1e1c | 3173 | if (res == NULL) |
8e2c104f | 3174 | return NULL; |
b3db1e1c JM |
3175 | msg = nlmsg_alloc(); |
3176 | if (!msg) | |
3177 | goto nla_put_failure; | |
3f5285e8 | 3178 | |
9fb04070 | 3179 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); |
b3db1e1c | 3180 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
3f5285e8 | 3181 | |
3812464c JM |
3182 | arg.drv = drv; |
3183 | arg.res = res; | |
3184 | ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); | |
b3db1e1c JM |
3185 | msg = NULL; |
3186 | if (ret == 0) { | |
577db0ae GM |
3187 | wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " |
3188 | "BSSes)", (unsigned long) res->num); | |
3189 | nl80211_get_noise_for_scan_results(drv, res); | |
b3db1e1c | 3190 | return res; |
3f5285e8 | 3191 | } |
b3db1e1c JM |
3192 | wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " |
3193 | "(%s)", ret, strerror(-ret)); | |
3194 | nla_put_failure: | |
3195 | nlmsg_free(msg); | |
3196 | wpa_scan_results_free(res); | |
3197 | return NULL; | |
3f5285e8 JM |
3198 | } |
3199 | ||
3200 | ||
8856462d JM |
3201 | /** |
3202 | * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results | |
3203 | * @priv: Pointer to private wext data from wpa_driver_nl80211_init() | |
3204 | * Returns: Scan results on success, -1 on failure | |
3205 | */ | |
3206 | static struct wpa_scan_results * | |
3207 | wpa_driver_nl80211_get_scan_results(void *priv) | |
3208 | { | |
a2e40bb6 FF |
3209 | struct i802_bss *bss = priv; |
3210 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
8856462d JM |
3211 | struct wpa_scan_results *res; |
3212 | ||
3213 | res = nl80211_get_scan_results(drv); | |
3214 | if (res) | |
3215 | wpa_driver_nl80211_check_bss_status(drv, res); | |
3216 | return res; | |
3217 | } | |
3218 | ||
3219 | ||
3220 | static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) | |
3221 | { | |
3222 | struct wpa_scan_results *res; | |
3223 | size_t i; | |
3224 | ||
3225 | res = nl80211_get_scan_results(drv); | |
3226 | if (res == NULL) { | |
3227 | wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); | |
3228 | return; | |
3229 | } | |
3230 | ||
3231 | wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); | |
3232 | for (i = 0; i < res->num; i++) { | |
3233 | struct wpa_scan_res *r = res->res[i]; | |
3234 | wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", | |
3235 | (int) i, (int) res->num, MAC2STR(r->bssid), | |
3236 | r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", | |
3237 | r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); | |
3238 | } | |
3239 | ||
3240 | wpa_scan_results_free(res); | |
3241 | } | |
3242 | ||
3243 | ||
642187d6 | 3244 | static int wpa_driver_nl80211_set_key(const char *ifname, void *priv, |
71934751 JM |
3245 | enum wpa_alg alg, const u8 *addr, |
3246 | int key_idx, int set_tx, | |
642187d6 JM |
3247 | const u8 *seq, size_t seq_len, |
3248 | const u8 *key, size_t key_len) | |
3f5285e8 | 3249 | { |
a2e40bb6 FF |
3250 | struct i802_bss *bss = priv; |
3251 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
642187d6 | 3252 | int ifindex = if_nametoindex(ifname); |
3f5285e8 | 3253 | struct nl_msg *msg; |
1ad1cdc2 | 3254 | int ret; |
3f5285e8 | 3255 | |
1ad1cdc2 JM |
3256 | wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d " |
3257 | "set_tx=%d seq_len=%lu key_len=%lu", | |
3258 | __func__, ifindex, alg, addr, key_idx, set_tx, | |
3f5285e8 | 3259 | (unsigned long) seq_len, (unsigned long) key_len); |
8c66e185 JM |
3260 | #ifdef CONFIG_TDLS |
3261 | if (key_idx == -1) | |
3262 | key_idx = 0; | |
3263 | #endif /* CONFIG_TDLS */ | |
3f5285e8 JM |
3264 | |
3265 | msg = nlmsg_alloc(); | |
1ad1cdc2 JM |
3266 | if (!msg) |
3267 | return -ENOMEM; | |
3f5285e8 JM |
3268 | |
3269 | if (alg == WPA_ALG_NONE) { | |
9fb04070 | 3270 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); |
3f5285e8 | 3271 | } else { |
9fb04070 | 3272 | nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); |
3f5285e8 | 3273 | NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); |
d723bab4 JM |
3274 | switch (alg) { |
3275 | case WPA_ALG_WEP: | |
3276 | if (key_len == 5) | |
3277 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
3278 | WLAN_CIPHER_SUITE_WEP40); | |
3279 | else | |
3280 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
3281 | WLAN_CIPHER_SUITE_WEP104); | |
3282 | break; | |
3283 | case WPA_ALG_TKIP: | |
3284 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
3285 | WLAN_CIPHER_SUITE_TKIP); | |
3286 | break; | |
3287 | case WPA_ALG_CCMP: | |
3288 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
3289 | WLAN_CIPHER_SUITE_CCMP); | |
3290 | break; | |
3291 | case WPA_ALG_IGTK: | |
3292 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, | |
3293 | WLAN_CIPHER_SUITE_AES_CMAC); | |
3294 | break; | |
3295 | default: | |
3296 | wpa_printf(MSG_ERROR, "%s: Unsupported encryption " | |
3297 | "algorithm %d", __func__, alg); | |
3f5285e8 JM |
3298 | nlmsg_free(msg); |
3299 | return -1; | |
3300 | } | |
3301 | } | |
3302 | ||
849ef835 | 3303 | if (seq && seq_len) |
1ad1cdc2 JM |
3304 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); |
3305 | ||
0382097e | 3306 | if (addr && !is_broadcast_ether_addr(addr)) { |
3f5285e8 JM |
3307 | wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); |
3308 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
89c38e32 JM |
3309 | |
3310 | if (alg != WPA_ALG_WEP && key_idx && !set_tx) { | |
3311 | wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); | |
3312 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, | |
3313 | NL80211_KEYTYPE_GROUP); | |
3314 | } | |
60ea8187 JM |
3315 | } else if (addr && is_broadcast_ether_addr(addr)) { |
3316 | struct nl_msg *types; | |
3317 | int err; | |
3318 | wpa_printf(MSG_DEBUG, " broadcast key"); | |
3319 | types = nlmsg_alloc(); | |
3320 | if (!types) | |
3321 | goto nla_put_failure; | |
3322 | NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST); | |
3323 | err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, | |
3324 | types); | |
3325 | nlmsg_free(types); | |
3326 | if (err) | |
3327 | goto nla_put_failure; | |
3f5285e8 JM |
3328 | } |
3329 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1ad1cdc2 | 3330 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
3f5285e8 | 3331 | |
1ad1cdc2 | 3332 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
15664ad0 | 3333 | if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) |
1ad1cdc2 JM |
3334 | ret = 0; |
3335 | if (ret) | |
3336 | wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", | |
3337 | ret, strerror(-ret)); | |
3f5285e8 | 3338 | |
1ad1cdc2 JM |
3339 | /* |
3340 | * If we failed or don't need to set the default TX key (below), | |
3341 | * we're done here. | |
3342 | */ | |
3343 | if (ret || !set_tx || alg == WPA_ALG_NONE) | |
3344 | return ret; | |
b1f625e0 | 3345 | if (is_ap_interface(drv->nlmode) && addr && |
0382097e | 3346 | !is_broadcast_ether_addr(addr)) |
de12717a | 3347 | return ret; |
3f5285e8 | 3348 | |
1ad1cdc2 JM |
3349 | msg = nlmsg_alloc(); |
3350 | if (!msg) | |
3351 | return -ENOMEM; | |
3f5285e8 | 3352 | |
9fb04070 | 3353 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); |
1ad1cdc2 JM |
3354 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); |
3355 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); | |
3356 | if (alg == WPA_ALG_IGTK) | |
3357 | NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); | |
3358 | else | |
3359 | NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); | |
60ea8187 JM |
3360 | if (addr && is_broadcast_ether_addr(addr)) { |
3361 | struct nl_msg *types; | |
3362 | int err; | |
3363 | types = nlmsg_alloc(); | |
3364 | if (!types) | |
3365 | goto nla_put_failure; | |
3366 | NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST); | |
3367 | err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, | |
3368 | types); | |
3369 | nlmsg_free(types); | |
3370 | if (err) | |
3371 | goto nla_put_failure; | |
3372 | } else if (addr) { | |
3373 | struct nl_msg *types; | |
3374 | int err; | |
3375 | types = nlmsg_alloc(); | |
3376 | if (!types) | |
3377 | goto nla_put_failure; | |
3378 | NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST); | |
3379 | err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, | |
3380 | types); | |
3381 | nlmsg_free(types); | |
3382 | if (err) | |
3383 | goto nla_put_failure; | |
3384 | } | |
3f5285e8 | 3385 | |
1ad1cdc2 JM |
3386 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
3387 | if (ret == -ENOENT) | |
3388 | ret = 0; | |
3389 | if (ret) | |
3390 | wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " | |
3391 | "err=%d %s)", ret, strerror(-ret)); | |
3392 | return ret; | |
3f5285e8 JM |
3393 | |
3394 | nla_put_failure: | |
6241fcb1 | 3395 | return -ENOBUFS; |
3f5285e8 JM |
3396 | } |
3397 | ||
3398 | ||
71934751 | 3399 | static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, |
0194fedb JB |
3400 | int key_idx, int defkey, |
3401 | const u8 *seq, size_t seq_len, | |
3402 | const u8 *key, size_t key_len) | |
3403 | { | |
3404 | struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); | |
3405 | if (!key_attr) | |
3406 | return -1; | |
3407 | ||
3408 | if (defkey && alg == WPA_ALG_IGTK) | |
3409 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); | |
3410 | else if (defkey) | |
3411 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
3412 | ||
3413 | NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); | |
3414 | ||
d723bab4 JM |
3415 | switch (alg) { |
3416 | case WPA_ALG_WEP: | |
3417 | if (key_len == 5) | |
2aa5f847 JM |
3418 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
3419 | WLAN_CIPHER_SUITE_WEP40); | |
d723bab4 | 3420 | else |
2aa5f847 JM |
3421 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
3422 | WLAN_CIPHER_SUITE_WEP104); | |
d723bab4 JM |
3423 | break; |
3424 | case WPA_ALG_TKIP: | |
2aa5f847 | 3425 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); |
d723bab4 JM |
3426 | break; |
3427 | case WPA_ALG_CCMP: | |
2aa5f847 | 3428 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); |
d723bab4 JM |
3429 | break; |
3430 | case WPA_ALG_IGTK: | |
2aa5f847 JM |
3431 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
3432 | WLAN_CIPHER_SUITE_AES_CMAC); | |
d723bab4 JM |
3433 | break; |
3434 | default: | |
3435 | wpa_printf(MSG_ERROR, "%s: Unsupported encryption " | |
3436 | "algorithm %d", __func__, alg); | |
0194fedb | 3437 | return -1; |
d723bab4 | 3438 | } |
0194fedb JB |
3439 | |
3440 | if (seq && seq_len) | |
3441 | NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); | |
3442 | ||
3443 | NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); | |
3444 | ||
3445 | nla_nest_end(msg, key_attr); | |
3446 | ||
3447 | return 0; | |
3448 | nla_put_failure: | |
3449 | return -1; | |
3450 | } | |
3451 | ||
c811d5bc | 3452 | |
cfaab580 ZY |
3453 | static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, |
3454 | struct nl_msg *msg) | |
3455 | { | |
3456 | int i, privacy = 0; | |
3457 | struct nlattr *nl_keys, *nl_key; | |
3458 | ||
3459 | for (i = 0; i < 4; i++) { | |
3460 | if (!params->wep_key[i]) | |
3461 | continue; | |
3462 | privacy = 1; | |
3463 | break; | |
3464 | } | |
ce04af5a JM |
3465 | if (params->wps == WPS_MODE_PRIVACY) |
3466 | privacy = 1; | |
3467 | if (params->pairwise_suite && | |
3468 | params->pairwise_suite != WPA_CIPHER_NONE) | |
3469 | privacy = 1; | |
3470 | ||
cfaab580 ZY |
3471 | if (!privacy) |
3472 | return 0; | |
3473 | ||
3474 | NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); | |
3475 | ||
3476 | nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); | |
3477 | if (!nl_keys) | |
3478 | goto nla_put_failure; | |
3479 | ||
3480 | for (i = 0; i < 4; i++) { | |
3481 | if (!params->wep_key[i]) | |
3482 | continue; | |
3483 | ||
3484 | nl_key = nla_nest_start(msg, i); | |
3485 | if (!nl_key) | |
3486 | goto nla_put_failure; | |
3487 | ||
3488 | NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], | |
3489 | params->wep_key[i]); | |
3490 | if (params->wep_key_len[i] == 5) | |
3491 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
3492 | WLAN_CIPHER_SUITE_WEP40); | |
3493 | else | |
3494 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, | |
3495 | WLAN_CIPHER_SUITE_WEP104); | |
3496 | ||
3497 | NLA_PUT_U8(msg, NL80211_KEY_IDX, i); | |
3498 | ||
3499 | if (i == params->wep_tx_keyidx) | |
3500 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
3501 | ||
3502 | nla_nest_end(msg, nl_key); | |
3503 | } | |
3504 | nla_nest_end(msg, nl_keys); | |
3505 | ||
3506 | return 0; | |
3507 | ||
3508 | nla_put_failure: | |
3509 | return -ENOBUFS; | |
3510 | } | |
3511 | ||
3512 | ||
c2a04078 | 3513 | static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, |
77339912 JM |
3514 | const u8 *addr, int cmd, u16 reason_code, |
3515 | int local_state_change) | |
c2a04078 JM |
3516 | { |
3517 | int ret = -1; | |
3518 | struct nl_msg *msg; | |
3519 | ||
3520 | msg = nlmsg_alloc(); | |
3521 | if (!msg) | |
3522 | return -1; | |
3523 | ||
9fb04070 | 3524 | nl80211_cmd(drv, msg, 0, cmd); |
c2a04078 JM |
3525 | |
3526 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
3527 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); | |
3528 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
77339912 JM |
3529 | if (local_state_change) |
3530 | NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); | |
c2a04078 JM |
3531 | |
3532 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3533 | msg = NULL; | |
3534 | if (ret) { | |
3535 | wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d " | |
3536 | "(%s)", ret, strerror(-ret)); | |
3537 | goto nla_put_failure; | |
3538 | } | |
3539 | ret = 0; | |
3540 | ||
3541 | nla_put_failure: | |
3542 | nlmsg_free(msg); | |
3543 | return ret; | |
3544 | } | |
3f5285e8 JM |
3545 | |
3546 | ||
cfaab580 ZY |
3547 | static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, |
3548 | const u8 *addr, int reason_code) | |
3549 | { | |
2e75a2b3 JM |
3550 | wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", |
3551 | __func__, MAC2STR(addr), reason_code); | |
cfaab580 ZY |
3552 | drv->associated = 0; |
3553 | return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT, | |
77339912 | 3554 | reason_code, 0); |
cfaab580 ZY |
3555 | } |
3556 | ||
3557 | ||
3f5285e8 | 3558 | static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr, |
c2a04078 | 3559 | int reason_code) |
3f5285e8 | 3560 | { |
a2e40bb6 FF |
3561 | struct i802_bss *bss = priv; |
3562 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
cfaab580 ZY |
3563 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) |
3564 | return wpa_driver_nl80211_disconnect(drv, addr, reason_code); | |
2e75a2b3 JM |
3565 | wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", |
3566 | __func__, MAC2STR(addr), reason_code); | |
13405f35 | 3567 | drv->associated = 0; |
21bdbe38 JM |
3568 | if (drv->nlmode == NL80211_IFTYPE_ADHOC) |
3569 | return nl80211_leave_ibss(drv); | |
c2a04078 | 3570 | return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, |
77339912 | 3571 | reason_code, 0); |
3f5285e8 JM |
3572 | } |
3573 | ||
3574 | ||
3575 | static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr, | |
c2a04078 | 3576 | int reason_code) |
3f5285e8 | 3577 | { |
a2e40bb6 FF |
3578 | struct i802_bss *bss = priv; |
3579 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
cfaab580 ZY |
3580 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) |
3581 | return wpa_driver_nl80211_disconnect(drv, addr, reason_code); | |
c2a04078 | 3582 | wpa_printf(MSG_DEBUG, "%s", __func__); |
13405f35 | 3583 | drv->associated = 0; |
c2a04078 | 3584 | return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE, |
77339912 | 3585 | reason_code, 0); |
3f5285e8 JM |
3586 | } |
3587 | ||
3588 | ||
c2a04078 JM |
3589 | static int wpa_driver_nl80211_authenticate( |
3590 | void *priv, struct wpa_driver_auth_params *params) | |
3591 | { | |
a2e40bb6 FF |
3592 | struct i802_bss *bss = priv; |
3593 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
a0b2f99b | 3594 | int ret = -1, i; |
c2a04078 JM |
3595 | struct nl_msg *msg; |
3596 | enum nl80211_auth_type type; | |
2f4f73b1 | 3597 | enum nl80211_iftype nlmode; |
6d6f4bb8 | 3598 | int count = 0; |
c2a04078 JM |
3599 | |
3600 | drv->associated = 0; | |
e6b8efeb | 3601 | os_memset(drv->auth_bssid, 0, ETH_ALEN); |
af473088 | 3602 | /* FIX: IBSS mode */ |
2f4f73b1 EP |
3603 | nlmode = params->p2p ? |
3604 | NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; | |
3605 | if (drv->nlmode != nlmode && | |
3606 | wpa_driver_nl80211_set_mode(priv, nlmode) < 0) | |
4a867032 JM |
3607 | return -1; |
3608 | ||
6d6f4bb8 | 3609 | retry: |
c2a04078 JM |
3610 | msg = nlmsg_alloc(); |
3611 | if (!msg) | |
3612 | return -1; | |
3613 | ||
3614 | wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", | |
3615 | drv->ifindex); | |
a0b2f99b | 3616 | |
9fb04070 | 3617 | nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); |
0194fedb | 3618 | |
a0b2f99b JM |
3619 | for (i = 0; i < 4; i++) { |
3620 | if (!params->wep_key[i]) | |
3621 | continue; | |
2ea2fcc7 HS |
3622 | wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP, |
3623 | NULL, i, | |
a0b2f99b JM |
3624 | i == params->wep_tx_keyidx, NULL, 0, |
3625 | params->wep_key[i], | |
3626 | params->wep_key_len[i]); | |
0194fedb JB |
3627 | if (params->wep_tx_keyidx != i) |
3628 | continue; | |
3629 | if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, | |
3630 | params->wep_key[i], params->wep_key_len[i])) { | |
3631 | nlmsg_free(msg); | |
3632 | return -1; | |
3633 | } | |
a0b2f99b JM |
3634 | } |
3635 | ||
c2a04078 JM |
3636 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
3637 | if (params->bssid) { | |
3638 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
3639 | MAC2STR(params->bssid)); | |
3640 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
3641 | } | |
3642 | if (params->freq) { | |
3643 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
3644 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
3645 | } | |
3646 | if (params->ssid) { | |
3647 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
3648 | params->ssid, params->ssid_len); | |
3649 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
3650 | params->ssid); | |
3651 | } | |
3652 | wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); | |
3653 | if (params->ie) | |
3654 | NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); | |
abd9fafa | 3655 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) |
c2a04078 | 3656 | type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
abd9fafa | 3657 | else if (params->auth_alg & WPA_AUTH_ALG_SHARED) |
c2a04078 | 3658 | type = NL80211_AUTHTYPE_SHARED_KEY; |
abd9fafa | 3659 | else if (params->auth_alg & WPA_AUTH_ALG_LEAP) |
c2a04078 | 3660 | type = NL80211_AUTHTYPE_NETWORK_EAP; |
abd9fafa | 3661 | else if (params->auth_alg & WPA_AUTH_ALG_FT) |
c2a04078 JM |
3662 | type = NL80211_AUTHTYPE_FT; |
3663 | else | |
3664 | goto nla_put_failure; | |
3665 | wpa_printf(MSG_DEBUG, " * Auth Type %d", type); | |
3666 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); | |
77339912 JM |
3667 | if (params->local_state_change) { |
3668 | wpa_printf(MSG_DEBUG, " * Local state change only"); | |
3669 | NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); | |
3670 | } | |
c2a04078 JM |
3671 | |
3672 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
3673 | msg = NULL; | |
3674 | if (ret) { | |
3675 | wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d " | |
3676 | "(%s)", ret, strerror(-ret)); | |
6d6f4bb8 | 3677 | count++; |
77339912 JM |
3678 | if (ret == -EALREADY && count == 1 && params->bssid && |
3679 | !params->local_state_change) { | |
6d6f4bb8 JM |
3680 | /* |
3681 | * mac80211 does not currently accept new | |
3682 | * authentication if we are already authenticated. As a | |
3683 | * workaround, force deauthentication and try again. | |
3684 | */ | |
3685 | wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " | |
3686 | "after forced deauthentication"); | |
3687 | wpa_driver_nl80211_deauthenticate( | |
5205c4f9 | 3688 | bss, params->bssid, |
6d6f4bb8 JM |
3689 | WLAN_REASON_PREV_AUTH_NOT_VALID); |
3690 | nlmsg_free(msg); | |
3691 | goto retry; | |
3692 | } | |
c2a04078 JM |
3693 | goto nla_put_failure; |
3694 | } | |
3695 | ret = 0; | |
3696 | wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " | |
3697 | "successfully"); | |
3698 | ||
3699 | nla_put_failure: | |
3700 | nlmsg_free(msg); | |
3701 | return ret; | |
3702 | } | |
3703 | ||
3704 | ||
282d5590 JM |
3705 | struct phy_info_arg { |
3706 | u16 *num_modes; | |
3707 | struct hostapd_hw_modes *modes; | |
3708 | }; | |
3709 | ||
3710 | static int phy_info_handler(struct nl_msg *msg, void *arg) | |
3711 | { | |
3712 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
3713 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
3714 | struct phy_info_arg *phy_info = arg; | |
3715 | ||
3716 | struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; | |
3717 | ||
3718 | struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; | |
3719 | static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { | |
3720 | [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, | |
3721 | [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, | |
3722 | [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, | |
3723 | [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, | |
3724 | [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, | |
3725 | [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, | |
3726 | }; | |
3727 | ||
3728 | struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; | |
3729 | static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { | |
3730 | [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, | |
3731 | [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG }, | |
3732 | }; | |
3733 | ||
3734 | struct nlattr *nl_band; | |
3735 | struct nlattr *nl_freq; | |
3736 | struct nlattr *nl_rate; | |
3737 | int rem_band, rem_freq, rem_rate; | |
3738 | struct hostapd_hw_modes *mode; | |
3739 | int idx, mode_is_set; | |
3740 | ||
3741 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
3742 | genlmsg_attrlen(gnlh, 0), NULL); | |
3743 | ||
3744 | if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) | |
3745 | return NL_SKIP; | |
3746 | ||
3747 | nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) { | |
e62fb0a0 | 3748 | mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode)); |
282d5590 JM |
3749 | if (!mode) |
3750 | return NL_SKIP; | |
3751 | phy_info->modes = mode; | |
3752 | ||
3753 | mode_is_set = 0; | |
3754 | ||
3755 | mode = &phy_info->modes[*(phy_info->num_modes)]; | |
3756 | memset(mode, 0, sizeof(*mode)); | |
e3b473eb | 3757 | mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN; |
282d5590 JM |
3758 | *(phy_info->num_modes) += 1; |
3759 | ||
3760 | nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), | |
3761 | nla_len(nl_band), NULL); | |
3762 | ||
3763 | if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) { | |
3764 | mode->ht_capab = nla_get_u16( | |
3765 | tb_band[NL80211_BAND_ATTR_HT_CAPA]); | |
3766 | } | |
3767 | ||
be8eb8ab JM |
3768 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) { |
3769 | mode->a_mpdu_params |= nla_get_u8( | |
3770 | tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) & | |
3771 | 0x03; | |
3772 | } | |
3773 | ||
3774 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) { | |
3775 | mode->a_mpdu_params |= nla_get_u8( | |
3776 | tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) << | |
3777 | 2; | |
3778 | } | |
3779 | ||
08eb154d JM |
3780 | if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] && |
3781 | nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) { | |
3782 | u8 *mcs; | |
3783 | mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); | |
3784 | os_memcpy(mode->mcs_set, mcs, 16); | |
3785 | } | |
3786 | ||
282d5590 JM |
3787 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { |
3788 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
3789 | nla_len(nl_freq), freq_policy); | |
3790 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
3791 | continue; | |
3792 | mode->num_channels++; | |
3793 | } | |
3794 | ||
e62fb0a0 | 3795 | mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data)); |
282d5590 JM |
3796 | if (!mode->channels) |
3797 | return NL_SKIP; | |
3798 | ||
3799 | idx = 0; | |
3800 | ||
3801 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { | |
3802 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
3803 | nla_len(nl_freq), freq_policy); | |
3804 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
3805 | continue; | |
3806 | ||
3807 | mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); | |
3808 | mode->channels[idx].flag = 0; | |
3809 | ||
3810 | if (!mode_is_set) { | |
3811 | /* crude heuristic */ | |
3812 | if (mode->channels[idx].freq < 4000) | |
3813 | mode->mode = HOSTAPD_MODE_IEEE80211B; | |
3814 | else | |
3815 | mode->mode = HOSTAPD_MODE_IEEE80211A; | |
3816 | mode_is_set = 1; | |
3817 | } | |
3818 | ||
3819 | /* crude heuristic */ | |
3820 | if (mode->channels[idx].freq < 4000) | |
5a0ffb5f | 3821 | if (mode->channels[idx].freq == 2484) |
282d5590 JM |
3822 | mode->channels[idx].chan = 14; |
3823 | else | |
3824 | mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5; | |
3825 | else | |
3826 | mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000; | |
3827 | ||
3828 | if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
3829 | mode->channels[idx].flag |= | |
3830 | HOSTAPD_CHAN_DISABLED; | |
3831 | if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) | |
3832 | mode->channels[idx].flag |= | |
3833 | HOSTAPD_CHAN_PASSIVE_SCAN; | |
3834 | if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) | |
3835 | mode->channels[idx].flag |= | |
3836 | HOSTAPD_CHAN_NO_IBSS; | |
3837 | if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) | |
3838 | mode->channels[idx].flag |= | |
3839 | HOSTAPD_CHAN_RADAR; | |
3840 | ||
3841 | if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && | |
3842 | !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
3843 | mode->channels[idx].max_tx_power = | |
3844 | nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; | |
3845 | ||
3846 | idx++; | |
3847 | } | |
3848 | ||
3849 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
3850 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
3851 | nla_len(nl_rate), rate_policy); | |
3852 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
3853 | continue; | |
3854 | mode->num_rates++; | |
3855 | } | |
3856 | ||
e62fb0a0 | 3857 | mode->rates = os_zalloc(mode->num_rates * sizeof(int)); |
282d5590 JM |
3858 | if (!mode->rates) |
3859 | return NL_SKIP; | |
3860 | ||
3861 | idx = 0; | |
3862 | ||
3863 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
3864 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
3865 | nla_len(nl_rate), rate_policy); | |
3866 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
3867 | continue; | |
fb7842aa | 3868 | mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]); |
282d5590 JM |
3869 | |
3870 | /* crude heuristic */ | |
3871 | if (mode->mode == HOSTAPD_MODE_IEEE80211B && | |
fb7842aa | 3872 | mode->rates[idx] > 200) |
282d5590 JM |
3873 | mode->mode = HOSTAPD_MODE_IEEE80211G; |
3874 | ||
282d5590 JM |
3875 | idx++; |
3876 | } | |
3877 | } | |
3878 | ||
3879 | return NL_SKIP; | |
3880 | } | |
3881 | ||
3882 | static struct hostapd_hw_modes * | |
3883 | wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes) | |
3884 | { | |
3885 | u16 m; | |
3886 | struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; | |
3887 | int i, mode11g_idx = -1; | |
3888 | ||
3889 | /* If only 802.11g mode is included, use it to construct matching | |
3890 | * 802.11b mode data. */ | |
3891 | ||
3892 | for (m = 0; m < *num_modes; m++) { | |
3893 | if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) | |
3894 | return modes; /* 802.11b already included */ | |
3895 | if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) | |
3896 | mode11g_idx = m; | |
3897 | } | |
3898 | ||
3899 | if (mode11g_idx < 0) | |
3900 | return modes; /* 2.4 GHz band not supported at all */ | |
3901 | ||
3902 | nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes)); | |
3903 | if (nmodes == NULL) | |
3904 | return modes; /* Could not add 802.11b mode */ | |
3905 | ||
3906 | mode = &nmodes[*num_modes]; | |
3907 | os_memset(mode, 0, sizeof(*mode)); | |
3908 | (*num_modes)++; | |
3909 | modes = nmodes; | |
3910 | ||
3911 | mode->mode = HOSTAPD_MODE_IEEE80211B; | |
3912 | ||
3913 | mode11g = &modes[mode11g_idx]; | |
3914 | mode->num_channels = mode11g->num_channels; | |
3915 | mode->channels = os_malloc(mode11g->num_channels * | |
3916 | sizeof(struct hostapd_channel_data)); | |
3917 | if (mode->channels == NULL) { | |
3918 | (*num_modes)--; | |
3919 | return modes; /* Could not add 802.11b mode */ | |
3920 | } | |
3921 | os_memcpy(mode->channels, mode11g->channels, | |
3922 | mode11g->num_channels * sizeof(struct hostapd_channel_data)); | |
3923 | ||
3924 | mode->num_rates = 0; | |
fb7842aa | 3925 | mode->rates = os_malloc(4 * sizeof(int)); |
282d5590 JM |
3926 | if (mode->rates == NULL) { |
3927 | os_free(mode->channels); | |
3928 | (*num_modes)--; | |
3929 | return modes; /* Could not add 802.11b mode */ | |
3930 | } | |
3931 | ||
3932 | for (i = 0; i < mode11g->num_rates; i++) { | |
fb7842aa JM |
3933 | if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && |
3934 | mode11g->rates[i] != 55 && mode11g->rates[i] != 110) | |
282d5590 JM |
3935 | continue; |
3936 | mode->rates[mode->num_rates] = mode11g->rates[i]; | |
3937 | mode->num_rates++; | |
3938 | if (mode->num_rates == 4) | |
3939 | break; | |
3940 | } | |
3941 | ||
3942 | if (mode->num_rates == 0) { | |
3943 | os_free(mode->channels); | |
3944 | os_free(mode->rates); | |
3945 | (*num_modes)--; | |
3946 | return modes; /* No 802.11b rates */ | |
3947 | } | |
3948 | ||
3949 | wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " | |
3950 | "information"); | |
3951 | ||
3952 | return modes; | |
3953 | } | |
3954 | ||
3955 | ||
d8e66e80 JM |
3956 | static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, |
3957 | int end) | |
3958 | { | |
3959 | int c; | |
3960 | ||
3961 | for (c = 0; c < mode->num_channels; c++) { | |
3962 | struct hostapd_channel_data *chan = &mode->channels[c]; | |
3963 | if (chan->freq - 10 >= start && chan->freq + 10 <= end) | |
3964 | chan->flag |= HOSTAPD_CHAN_HT40; | |
3965 | } | |
3966 | } | |
3967 | ||
3968 | ||
3969 | static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, | |
3970 | int end) | |
3971 | { | |
3972 | int c; | |
3973 | ||
3974 | for (c = 0; c < mode->num_channels; c++) { | |
3975 | struct hostapd_channel_data *chan = &mode->channels[c]; | |
3976 | if (!(chan->flag & HOSTAPD_CHAN_HT40)) | |
3977 | continue; | |
3978 | if (chan->freq - 30 >= start && chan->freq - 10 <= end) | |
3979 | chan->flag |= HOSTAPD_CHAN_HT40MINUS; | |
3980 | if (chan->freq + 10 >= start && chan->freq + 30 <= end) | |
3981 | chan->flag |= HOSTAPD_CHAN_HT40PLUS; | |
3982 | } | |
3983 | } | |
3984 | ||
3985 | ||
3986 | static void nl80211_reg_rule_ht40(struct nlattr *tb[], | |
3987 | struct phy_info_arg *results) | |
3988 | { | |
3989 | u32 start, end, max_bw; | |
3990 | u16 m; | |
3991 | ||
3992 | if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || | |
3993 | tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || | |
3994 | tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) | |
3995 | return; | |
3996 | ||
3997 | start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; | |
3998 | end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; | |
3999 | max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; | |
4000 | ||
4001 | wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", | |
4002 | start, end, max_bw); | |
4003 | if (max_bw < 40) | |
4004 | return; | |
4005 | ||
4006 | for (m = 0; m < *results->num_modes; m++) { | |
4007 | if (!(results->modes[m].ht_capab & | |
4008 | HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) | |
4009 | continue; | |
4010 | nl80211_set_ht40_mode(&results->modes[m], start, end); | |
4011 | } | |
4012 | } | |
4013 | ||
4014 | ||
4015 | static void nl80211_reg_rule_sec(struct nlattr *tb[], | |
4016 | struct phy_info_arg *results) | |
4017 | { | |
4018 | u32 start, end, max_bw; | |
4019 | u16 m; | |
4020 | ||
4021 | if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || | |
4022 | tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || | |
4023 | tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) | |
4024 | return; | |
4025 | ||
4026 | start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; | |
4027 | end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; | |
4028 | max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; | |
4029 | ||
4030 | if (max_bw < 20) | |
4031 | return; | |
4032 | ||
4033 | for (m = 0; m < *results->num_modes; m++) { | |
4034 | if (!(results->modes[m].ht_capab & | |
4035 | HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) | |
4036 | continue; | |
4037 | nl80211_set_ht40_mode_sec(&results->modes[m], start, end); | |
4038 | } | |
4039 | } | |
4040 | ||
4041 | ||
4042 | static int nl80211_get_reg(struct nl_msg *msg, void *arg) | |
4043 | { | |
4044 | struct phy_info_arg *results = arg; | |
4045 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
4046 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
4047 | struct nlattr *nl_rule; | |
4048 | struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; | |
4049 | int rem_rule; | |
4050 | static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { | |
4051 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
4052 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
4053 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
4054 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
4055 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
4056 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
4057 | }; | |
4058 | ||
4059 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
4060 | genlmsg_attrlen(gnlh, 0), NULL); | |
4061 | if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || | |
4062 | !tb_msg[NL80211_ATTR_REG_RULES]) { | |
4063 | wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " | |
4064 | "available"); | |
4065 | return NL_SKIP; | |
4066 | } | |
4067 | ||
4068 | wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", | |
4069 | (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); | |
4070 | ||
4071 | nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) | |
4072 | { | |
4073 | nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, | |
4074 | nla_data(nl_rule), nla_len(nl_rule), reg_policy); | |
4075 | nl80211_reg_rule_ht40(tb_rule, results); | |
4076 | } | |
4077 | ||
4078 | nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) | |
4079 | { | |
4080 | nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, | |
4081 | nla_data(nl_rule), nla_len(nl_rule), reg_policy); | |
4082 | nl80211_reg_rule_sec(tb_rule, results); | |
4083 | } | |
4084 | ||
4085 | return NL_SKIP; | |
4086 | } | |
4087 | ||
4088 | ||
4089 | static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, | |
4090 | struct phy_info_arg *results) | |
4091 | { | |
4092 | struct nl_msg *msg; | |
4093 | ||
4094 | msg = nlmsg_alloc(); | |
4095 | if (!msg) | |
4096 | return -ENOMEM; | |
4097 | ||
9fb04070 | 4098 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); |
d8e66e80 JM |
4099 | return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); |
4100 | } | |
4101 | ||
4102 | ||
282d5590 JM |
4103 | static struct hostapd_hw_modes * |
4104 | wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) | |
4105 | { | |
a2e40bb6 FF |
4106 | struct i802_bss *bss = priv; |
4107 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
282d5590 JM |
4108 | struct nl_msg *msg; |
4109 | struct phy_info_arg result = { | |
4110 | .num_modes = num_modes, | |
4111 | .modes = NULL, | |
4112 | }; | |
4113 | ||
4114 | *num_modes = 0; | |
4115 | *flags = 0; | |
4116 | ||
4117 | msg = nlmsg_alloc(); | |
4118 | if (!msg) | |
4119 | return NULL; | |
4120 | ||
9fb04070 | 4121 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); |
282d5590 JM |
4122 | |
4123 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
4124 | ||
d8e66e80 JM |
4125 | if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { |
4126 | nl80211_set_ht40_flags(drv, &result); | |
282d5590 | 4127 | return wpa_driver_nl80211_add_11b(result.modes, num_modes); |
d8e66e80 | 4128 | } |
282d5590 JM |
4129 | nla_put_failure: |
4130 | return NULL; | |
4131 | } | |
4132 | ||
4133 | ||
2c2010ac JM |
4134 | static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv, |
4135 | const void *data, size_t len, | |
4136 | int encrypt) | |
4137 | { | |
4138 | __u8 rtap_hdr[] = { | |
4139 | 0x00, 0x00, /* radiotap version */ | |
4140 | 0x0e, 0x00, /* radiotap length */ | |
4141 | 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ | |
4142 | IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ | |
4143 | 0x00, /* padding */ | |
4144 | 0x00, 0x00, /* RX and TX flags to indicate that */ | |
4145 | 0x00, 0x00, /* this is the injected frame directly */ | |
4146 | }; | |
4147 | struct iovec iov[2] = { | |
4148 | { | |
4149 | .iov_base = &rtap_hdr, | |
4150 | .iov_len = sizeof(rtap_hdr), | |
4151 | }, | |
4152 | { | |
4153 | .iov_base = (void *) data, | |
4154 | .iov_len = len, | |
4155 | } | |
4156 | }; | |
4157 | struct msghdr msg = { | |
4158 | .msg_name = NULL, | |
4159 | .msg_namelen = 0, | |
4160 | .msg_iov = iov, | |
4161 | .msg_iovlen = 2, | |
4162 | .msg_control = NULL, | |
4163 | .msg_controllen = 0, | |
4164 | .msg_flags = 0, | |
4165 | }; | |
ebbec8b2 | 4166 | int res; |
2c2010ac JM |
4167 | |
4168 | if (encrypt) | |
4169 | rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; | |
4170 | ||
866af8b6 JM |
4171 | if (drv->monitor_sock < 0) { |
4172 | wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " | |
4173 | "for %s", __func__); | |
4174 | return -1; | |
4175 | } | |
4176 | ||
ebbec8b2 JM |
4177 | res = sendmsg(drv->monitor_sock, &msg, 0); |
4178 | if (res < 0) { | |
4179 | wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); | |
4180 | return -1; | |
4181 | } | |
4182 | return 0; | |
2c2010ac JM |
4183 | } |
4184 | ||
4185 | ||
4186 | static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data, | |
4187 | size_t data_len) | |
4188 | { | |
a2e40bb6 FF |
4189 | struct i802_bss *bss = priv; |
4190 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
2c2010ac | 4191 | struct ieee80211_mgmt *mgmt; |
7a47d567 | 4192 | int encrypt = 1; |
2c2010ac JM |
4193 | u16 fc; |
4194 | ||
4195 | mgmt = (struct ieee80211_mgmt *) data; | |
4196 | fc = le_to_host16(mgmt->frame_control); | |
4197 | ||
b1f625e0 | 4198 | if (is_sta_interface(drv->nlmode) && |
5582a5d1 JB |
4199 | WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && |
4200 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { | |
4201 | /* | |
4202 | * The use of last_mgmt_freq is a bit of a hack, | |
4203 | * but it works due to the single-threaded nature | |
4204 | * of wpa_supplicant. | |
4205 | */ | |
5dfca53f | 4206 | return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, 0, |
b106173a | 4207 | data, data_len, NULL, 1); |
5582a5d1 JB |
4208 | } |
4209 | ||
86957e62 JM |
4210 | if (drv->no_monitor_iface_capab && is_ap_interface(drv->nlmode)) { |
4211 | return nl80211_send_frame_cmd(drv, drv->ap_oper_freq, 0, | |
b106173a | 4212 | data, data_len, NULL, 0); |
86957e62 JM |
4213 | } |
4214 | ||
2c2010ac JM |
4215 | if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && |
4216 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { | |
4217 | /* | |
4218 | * Only one of the authentication frame types is encrypted. | |
4219 | * In order for static WEP encryption to work properly (i.e., | |
4220 | * to not encrypt the frame), we need to tell mac80211 about | |
4221 | * the frames that must not be encrypted. | |
4222 | */ | |
4223 | u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
4224 | u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); | |
7a47d567 JB |
4225 | if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) |
4226 | encrypt = 0; | |
2c2010ac JM |
4227 | } |
4228 | ||
7a47d567 | 4229 | return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt); |
2c2010ac JM |
4230 | } |
4231 | ||
4232 | ||
fd13a541 JM |
4233 | static int nl80211_set_ap_isolate(struct i802_bss *bss, int enabled) |
4234 | { | |
4235 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
4236 | struct nl_msg *msg; | |
4237 | ||
4238 | msg = nlmsg_alloc(); | |
4239 | if (!msg) | |
4240 | return -ENOMEM; | |
4241 | ||
9fb04070 | 4242 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); |
fd13a541 JM |
4243 | |
4244 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
4245 | NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, enabled); | |
4246 | ||
4247 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
4248 | nla_put_failure: | |
4249 | return -ENOBUFS; | |
4250 | } | |
4251 | ||
4252 | ||
31357268 JM |
4253 | static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, |
4254 | int slot, int ht_opmode) | |
4255 | { | |
4256 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
4257 | struct nl_msg *msg; | |
4258 | ||
4259 | msg = nlmsg_alloc(); | |
4260 | if (!msg) | |
4261 | return -ENOMEM; | |
4262 | ||
9fb04070 | 4263 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); |
31357268 JM |
4264 | |
4265 | if (cts >= 0) | |
4266 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); | |
4267 | if (preamble >= 0) | |
4268 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); | |
4269 | if (slot >= 0) | |
4270 | NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); | |
4271 | if (ht_opmode >= 0) | |
4272 | NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); | |
4273 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
4274 | ||
4275 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
4276 | nla_put_failure: | |
4277 | return -ENOBUFS; | |
4278 | } | |
4279 | ||
4280 | ||
19c3b566 JM |
4281 | static int wpa_driver_nl80211_set_ap(void *priv, |
4282 | struct wpa_driver_ap_params *params) | |
d2440ba0 | 4283 | { |
a2e40bb6 FF |
4284 | struct i802_bss *bss = priv; |
4285 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
d2440ba0 JM |
4286 | struct nl_msg *msg; |
4287 | u8 cmd = NL80211_CMD_NEW_BEACON; | |
4288 | int ret; | |
b4fd6fab | 4289 | int beacon_set; |
8b897f5a | 4290 | int ifindex = if_nametoindex(bss->ifname); |
b11d1d64 JM |
4291 | int num_suites; |
4292 | u32 suites[10]; | |
4293 | u32 ver; | |
b4fd6fab | 4294 | |
b4fd6fab | 4295 | beacon_set = bss->beacon_set; |
d2440ba0 JM |
4296 | |
4297 | msg = nlmsg_alloc(); | |
4298 | if (!msg) | |
4299 | return -ENOMEM; | |
4300 | ||
4301 | wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", | |
b4fd6fab JM |
4302 | beacon_set); |
4303 | if (beacon_set) | |
d2440ba0 JM |
4304 | cmd = NL80211_CMD_SET_BEACON; |
4305 | ||
9fb04070 | 4306 | nl80211_cmd(drv, msg, 0, cmd); |
19c3b566 JM |
4307 | NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); |
4308 | NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); | |
b4fd6fab | 4309 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
19c3b566 JM |
4310 | NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); |
4311 | NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); | |
ccb941e6 JM |
4312 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, |
4313 | params->ssid); | |
97a7a0b5 JM |
4314 | switch (params->hide_ssid) { |
4315 | case NO_SSID_HIDING: | |
4316 | NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, | |
4317 | NL80211_HIDDEN_SSID_NOT_IN_USE); | |
4318 | break; | |
4319 | case HIDDEN_SSID_ZERO_LEN: | |
4320 | NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, | |
4321 | NL80211_HIDDEN_SSID_ZERO_LEN); | |
4322 | break; | |
4323 | case HIDDEN_SSID_ZERO_CONTENTS: | |
4324 | NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, | |
4325 | NL80211_HIDDEN_SSID_ZERO_CONTENTS); | |
4326 | break; | |
4327 | } | |
b11d1d64 JM |
4328 | if (params->privacy) |
4329 | NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); | |
4330 | if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == | |
4331 | (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { | |
4332 | /* Leave out the attribute */ | |
4333 | } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) | |
4334 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, | |
4335 | NL80211_AUTHTYPE_SHARED_KEY); | |
4336 | else | |
4337 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, | |
4338 | NL80211_AUTHTYPE_OPEN_SYSTEM); | |
4339 | ||
4340 | ver = 0; | |
4341 | if (params->wpa_version & WPA_PROTO_WPA) | |
4342 | ver |= NL80211_WPA_VERSION_1; | |
4343 | if (params->wpa_version & WPA_PROTO_RSN) | |
4344 | ver |= NL80211_WPA_VERSION_2; | |
4345 | if (ver) | |
4346 | NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); | |
4347 | ||
4348 | num_suites = 0; | |
4349 | if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) | |
4350 | suites[num_suites++] = WLAN_AKM_SUITE_8021X; | |
4351 | if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) | |
4352 | suites[num_suites++] = WLAN_AKM_SUITE_PSK; | |
4353 | if (num_suites) { | |
4354 | NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, | |
4355 | num_suites * sizeof(u32), suites); | |
4356 | } | |
4357 | ||
4358 | num_suites = 0; | |
4359 | if (params->pairwise_ciphers & WPA_CIPHER_CCMP) | |
4360 | suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; | |
4361 | if (params->pairwise_ciphers & WPA_CIPHER_TKIP) | |
4362 | suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; | |
4363 | if (params->pairwise_ciphers & WPA_CIPHER_WEP104) | |
4364 | suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; | |
4365 | if (params->pairwise_ciphers & WPA_CIPHER_WEP40) | |
4366 | suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; | |
4367 | if (num_suites) { | |
4368 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, | |
4369 | num_suites * sizeof(u32), suites); | |
4370 | } | |
4371 | ||
4372 | switch (params->group_cipher) { | |
4373 | case WPA_CIPHER_CCMP: | |
4374 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
4375 | WLAN_CIPHER_SUITE_CCMP); | |
4376 | break; | |
4377 | case WPA_CIPHER_TKIP: | |
4378 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
4379 | WLAN_CIPHER_SUITE_TKIP); | |
4380 | break; | |
4381 | case WPA_CIPHER_WEP104: | |
4382 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
4383 | WLAN_CIPHER_SUITE_WEP104); | |
4384 | break; | |
4385 | case WPA_CIPHER_WEP40: | |
4386 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, | |
4387 | WLAN_CIPHER_SUITE_WEP40); | |
4388 | break; | |
4389 | } | |
d2440ba0 | 4390 | |
fb91db56 JM |
4391 | if (params->beacon_ies) { |
4392 | NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), | |
4393 | wpabuf_head(params->beacon_ies)); | |
4394 | } | |
4395 | if (params->proberesp_ies) { | |
4396 | NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, | |
4397 | wpabuf_len(params->proberesp_ies), | |
4398 | wpabuf_head(params->proberesp_ies)); | |
4399 | } | |
4400 | if (params->assocresp_ies) { | |
4401 | NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, | |
4402 | wpabuf_len(params->assocresp_ies), | |
4403 | wpabuf_head(params->assocresp_ies)); | |
4404 | } | |
4405 | ||
d2440ba0 JM |
4406 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
4407 | if (ret) { | |
4408 | wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", | |
4409 | ret, strerror(-ret)); | |
b4fd6fab | 4410 | } else { |
b4fd6fab | 4411 | bss->beacon_set = 1; |
fd13a541 JM |
4412 | ret = nl80211_set_ap_isolate(bss, params->isolate); |
4413 | if (!params->isolate && ret) { | |
4414 | wpa_printf(MSG_DEBUG, "nl80211: Ignore AP isolation " | |
4415 | "configuration error since isolation is " | |
4416 | "not used"); | |
4417 | ret = 0; | |
4418 | } | |
31357268 JM |
4419 | |
4420 | nl80211_set_bss(bss, params->cts_protect, params->preamble, | |
4421 | params->short_slot_time, params->ht_opmode); | |
b4fd6fab | 4422 | } |
d2440ba0 JM |
4423 | return ret; |
4424 | nla_put_failure: | |
4425 | return -ENOBUFS; | |
4426 | } | |
4427 | ||
4428 | ||
f019981a JM |
4429 | static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv, |
4430 | int freq, int ht_enabled, | |
4431 | int sec_channel_offset) | |
1581b38b JM |
4432 | { |
4433 | struct nl_msg *msg; | |
d2440ba0 | 4434 | int ret; |
1581b38b | 4435 | |
44dc872e JM |
4436 | wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d " |
4437 | "sec_channel_offset=%d)", | |
4438 | freq, ht_enabled, sec_channel_offset); | |
1581b38b JM |
4439 | msg = nlmsg_alloc(); |
4440 | if (!msg) | |
4441 | return -1; | |
4442 | ||
9fb04070 | 4443 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
1581b38b JM |
4444 | |
4445 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
f019981a JM |
4446 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); |
4447 | if (ht_enabled) { | |
4448 | switch (sec_channel_offset) { | |
4449 | case -1: | |
4450 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
4451 | NL80211_CHAN_HT40MINUS); | |
4452 | break; | |
4453 | case 1: | |
4454 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
4455 | NL80211_CHAN_HT40PLUS); | |
4456 | break; | |
4457 | default: | |
4458 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
4459 | NL80211_CHAN_HT20); | |
4460 | break; | |
4461 | } | |
4462 | } | |
1581b38b | 4463 | |
d2440ba0 JM |
4464 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
4465 | if (ret == 0) | |
1581b38b | 4466 | return 0; |
f019981a JM |
4467 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " |
4468 | "%d (%s)", freq, ret, strerror(-ret)); | |
1581b38b JM |
4469 | nla_put_failure: |
4470 | return -1; | |
4471 | } | |
4472 | ||
0f4e8b4f | 4473 | |
95ab6063 AN |
4474 | static u32 sta_flags_nl80211(int flags) |
4475 | { | |
4476 | u32 f = 0; | |
4477 | ||
4478 | if (flags & WPA_STA_AUTHORIZED) | |
4479 | f |= BIT(NL80211_STA_FLAG_AUTHORIZED); | |
4480 | if (flags & WPA_STA_WMM) | |
4481 | f |= BIT(NL80211_STA_FLAG_WME); | |
4482 | if (flags & WPA_STA_SHORT_PREAMBLE) | |
4483 | f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); | |
4484 | if (flags & WPA_STA_MFP) | |
4485 | f |= BIT(NL80211_STA_FLAG_MFP); | |
45b722f1 AN |
4486 | if (flags & WPA_STA_TDLS_PEER) |
4487 | f |= BIT(NL80211_STA_FLAG_TDLS_PEER); | |
95ab6063 AN |
4488 | |
4489 | return f; | |
4490 | } | |
4491 | ||
4492 | ||
62847751 | 4493 | static int wpa_driver_nl80211_sta_add(void *priv, |
0f4e8b4f JM |
4494 | struct hostapd_sta_add_params *params) |
4495 | { | |
a2e40bb6 FF |
4496 | struct i802_bss *bss = priv; |
4497 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
0f4e8b4f | 4498 | struct nl_msg *msg; |
95ab6063 | 4499 | struct nl80211_sta_flag_update upd; |
0f4e8b4f JM |
4500 | int ret = -ENOBUFS; |
4501 | ||
45b722f1 AN |
4502 | if ((params->flags & WPA_STA_TDLS_PEER) && |
4503 | !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) | |
4504 | return -EOPNOTSUPP; | |
4505 | ||
0f4e8b4f JM |
4506 | msg = nlmsg_alloc(); |
4507 | if (!msg) | |
4508 | return -ENOMEM; | |
4509 | ||
45b722f1 AN |
4510 | nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : |
4511 | NL80211_CMD_NEW_STATION); | |
0f4e8b4f | 4512 | |
62847751 | 4513 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
0f4e8b4f | 4514 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); |
0f4e8b4f JM |
4515 | NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, |
4516 | params->supp_rates); | |
45b722f1 AN |
4517 | if (!params->set) { |
4518 | NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); | |
4519 | NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, | |
4520 | params->listen_interval); | |
4521 | } | |
0f4e8b4f JM |
4522 | if (params->ht_capabilities) { |
4523 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, | |
fc4e2d95 JM |
4524 | sizeof(*params->ht_capabilities), |
4525 | params->ht_capabilities); | |
0f4e8b4f | 4526 | } |
0f4e8b4f | 4527 | |
95ab6063 AN |
4528 | os_memset(&upd, 0, sizeof(upd)); |
4529 | upd.mask = sta_flags_nl80211(params->flags); | |
4530 | upd.set = upd.mask; | |
4531 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
4532 | ||
0f4e8b4f JM |
4533 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
4534 | if (ret) | |
45b722f1 AN |
4535 | wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " |
4536 | "result: %d (%s)", params->set ? "SET" : "NEW", ret, | |
4537 | strerror(-ret)); | |
0f4e8b4f JM |
4538 | if (ret == -EEXIST) |
4539 | ret = 0; | |
4540 | nla_put_failure: | |
4541 | return ret; | |
4542 | } | |
4543 | ||
4544 | ||
4545 | static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr) | |
4546 | { | |
a2e40bb6 FF |
4547 | struct i802_bss *bss = priv; |
4548 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
0f4e8b4f JM |
4549 | struct nl_msg *msg; |
4550 | int ret; | |
4551 | ||
4552 | msg = nlmsg_alloc(); | |
4553 | if (!msg) | |
4554 | return -ENOMEM; | |
4555 | ||
9fb04070 | 4556 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); |
0f4e8b4f JM |
4557 | |
4558 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 4559 | if_nametoindex(bss->ifname)); |
0f4e8b4f JM |
4560 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
4561 | ||
4562 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4563 | if (ret == -ENOENT) | |
4564 | return 0; | |
4565 | return ret; | |
4566 | nla_put_failure: | |
4567 | return -ENOBUFS; | |
4568 | } | |
4569 | ||
1581b38b | 4570 | |
0915d02c JM |
4571 | static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, |
4572 | int ifidx) | |
4573 | { | |
4574 | struct nl_msg *msg; | |
4575 | ||
c6e8e8e4 JM |
4576 | wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); |
4577 | ||
2135f224 JM |
4578 | /* stop listening for EAPOL on this interface */ |
4579 | del_ifidx(drv, ifidx); | |
2135f224 | 4580 | |
0915d02c JM |
4581 | msg = nlmsg_alloc(); |
4582 | if (!msg) | |
4583 | goto nla_put_failure; | |
4584 | ||
9fb04070 | 4585 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); |
0915d02c JM |
4586 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); |
4587 | ||
4588 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
4589 | return; | |
4590 | nla_put_failure: | |
e748062b | 4591 | wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); |
0915d02c JM |
4592 | } |
4593 | ||
4594 | ||
a1922f93 JM |
4595 | static const char * nl80211_iftype_str(enum nl80211_iftype mode) |
4596 | { | |
4597 | switch (mode) { | |
4598 | case NL80211_IFTYPE_ADHOC: | |
4599 | return "ADHOC"; | |
4600 | case NL80211_IFTYPE_STATION: | |
4601 | return "STATION"; | |
4602 | case NL80211_IFTYPE_AP: | |
4603 | return "AP"; | |
4604 | case NL80211_IFTYPE_MONITOR: | |
4605 | return "MONITOR"; | |
4606 | case NL80211_IFTYPE_P2P_CLIENT: | |
4607 | return "P2P_CLIENT"; | |
4608 | case NL80211_IFTYPE_P2P_GO: | |
4609 | return "P2P_GO"; | |
4610 | default: | |
4611 | return "unknown"; | |
4612 | } | |
4613 | } | |
4614 | ||
4615 | ||
a35187e7 KH |
4616 | static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, |
4617 | const char *ifname, | |
4618 | enum nl80211_iftype iftype, | |
fbbfcbac | 4619 | const u8 *addr, int wds) |
0915d02c JM |
4620 | { |
4621 | struct nl_msg *msg, *flags = NULL; | |
4622 | int ifidx; | |
4623 | int ret = -ENOBUFS; | |
4624 | ||
a1922f93 JM |
4625 | wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", |
4626 | iftype, nl80211_iftype_str(iftype)); | |
4627 | ||
0915d02c JM |
4628 | msg = nlmsg_alloc(); |
4629 | if (!msg) | |
4630 | return -1; | |
4631 | ||
9fb04070 | 4632 | nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); |
0915d02c JM |
4633 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
4634 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); | |
4635 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); | |
4636 | ||
4637 | if (iftype == NL80211_IFTYPE_MONITOR) { | |
4638 | int err; | |
4639 | ||
4640 | flags = nlmsg_alloc(); | |
4641 | if (!flags) | |
4642 | goto nla_put_failure; | |
4643 | ||
4644 | NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES); | |
4645 | ||
4646 | err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags); | |
4647 | ||
4648 | nlmsg_free(flags); | |
4649 | ||
4650 | if (err) | |
4651 | goto nla_put_failure; | |
fbbfcbac FF |
4652 | } else if (wds) { |
4653 | NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); | |
0915d02c JM |
4654 | } |
4655 | ||
4656 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
4657 | if (ret) { | |
4658 | nla_put_failure: | |
a35187e7 KH |
4659 | wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", |
4660 | ifname, ret, strerror(-ret)); | |
0915d02c JM |
4661 | return ret; |
4662 | } | |
4663 | ||
4664 | ifidx = if_nametoindex(ifname); | |
c6e8e8e4 JM |
4665 | wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", |
4666 | ifname, ifidx); | |
0915d02c JM |
4667 | |
4668 | if (ifidx <= 0) | |
4669 | return -1; | |
4670 | ||
2135f224 JM |
4671 | /* start listening for EAPOL on this interface */ |
4672 | add_ifidx(drv, ifidx); | |
4673 | ||
7bfc47c3 | 4674 | if (addr && iftype != NL80211_IFTYPE_MONITOR && |
c81eff1a | 4675 | linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { |
41d931ee JM |
4676 | nl80211_remove_iface(drv, ifidx); |
4677 | return -1; | |
2135f224 | 4678 | } |
2135f224 | 4679 | |
0915d02c JM |
4680 | return ifidx; |
4681 | } | |
22a7c9d7 JM |
4682 | |
4683 | ||
a35187e7 KH |
4684 | static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, |
4685 | const char *ifname, enum nl80211_iftype iftype, | |
fbbfcbac | 4686 | const u8 *addr, int wds) |
a35187e7 KH |
4687 | { |
4688 | int ret; | |
4689 | ||
fbbfcbac | 4690 | ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds); |
a35187e7 | 4691 | |
ffbf1eaa | 4692 | /* if error occurred and interface exists already */ |
a35187e7 KH |
4693 | if (ret == -ENFILE && if_nametoindex(ifname)) { |
4694 | wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); | |
4695 | ||
4696 | /* Try to remove the interface that was already there. */ | |
4697 | nl80211_remove_iface(drv, if_nametoindex(ifname)); | |
4698 | ||
4699 | /* Try to create the interface again */ | |
fbbfcbac FF |
4700 | ret = nl80211_create_iface_once(drv, ifname, iftype, addr, |
4701 | wds); | |
a35187e7 KH |
4702 | } |
4703 | ||
b3af99d2 | 4704 | if (ret >= 0 && is_p2p_interface(iftype)) |
4e5cb1a3 JM |
4705 | nl80211_disable_11b_rates(drv, ret, 1); |
4706 | ||
a35187e7 KH |
4707 | return ret; |
4708 | } | |
0915d02c | 4709 | |
2135f224 | 4710 | |
0915d02c JM |
4711 | static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) |
4712 | { | |
4713 | struct ieee80211_hdr *hdr; | |
f8b1f695 JM |
4714 | u16 fc; |
4715 | union wpa_event_data event; | |
0915d02c JM |
4716 | |
4717 | hdr = (struct ieee80211_hdr *) buf; | |
4718 | fc = le_to_host16(hdr->frame_control); | |
4719 | ||
f8b1f695 JM |
4720 | os_memset(&event, 0, sizeof(event)); |
4721 | event.tx_status.type = WLAN_FC_GET_TYPE(fc); | |
4722 | event.tx_status.stype = WLAN_FC_GET_STYPE(fc); | |
4723 | event.tx_status.dst = hdr->addr1; | |
4724 | event.tx_status.data = buf; | |
4725 | event.tx_status.data_len = len; | |
4726 | event.tx_status.ack = ok; | |
4727 | wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); | |
0915d02c JM |
4728 | } |
4729 | ||
4730 | ||
4b9841d3 | 4731 | static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, |
0d9fc3d8 | 4732 | u8 *buf, size_t len) |
0915d02c | 4733 | { |
9b90955e JB |
4734 | struct ieee80211_hdr *hdr = (void *)buf; |
4735 | u16 fc; | |
f8b1f695 | 4736 | union wpa_event_data event; |
9b90955e JB |
4737 | |
4738 | if (len < sizeof(*hdr)) | |
4739 | return; | |
4740 | ||
4741 | fc = le_to_host16(hdr->frame_control); | |
4742 | ||
f8b1f695 | 4743 | os_memset(&event, 0, sizeof(event)); |
9b90955e JB |
4744 | event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); |
4745 | event.rx_from_unknown.addr = hdr->addr2; | |
4746 | event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == | |
4747 | (WLAN_FC_FROMDS | WLAN_FC_TODS); | |
f8b1f695 | 4748 | wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); |
4b9841d3 | 4749 | } |
0915d02c | 4750 | |
4b9841d3 JM |
4751 | |
4752 | static void handle_frame(struct wpa_driver_nl80211_data *drv, | |
2a8b7416 | 4753 | u8 *buf, size_t len, int datarate, int ssi_signal) |
4b9841d3 JM |
4754 | { |
4755 | struct ieee80211_hdr *hdr; | |
f8b1f695 JM |
4756 | u16 fc; |
4757 | union wpa_event_data event; | |
0915d02c JM |
4758 | |
4759 | hdr = (struct ieee80211_hdr *) buf; | |
4760 | fc = le_to_host16(hdr->frame_control); | |
0915d02c | 4761 | |
4b9841d3 | 4762 | switch (WLAN_FC_GET_TYPE(fc)) { |
0915d02c | 4763 | case WLAN_FC_TYPE_MGMT: |
f8b1f695 JM |
4764 | os_memset(&event, 0, sizeof(event)); |
4765 | event.rx_mgmt.frame = buf; | |
4766 | event.rx_mgmt.frame_len = len; | |
2a8b7416 JM |
4767 | event.rx_mgmt.datarate = datarate; |
4768 | event.rx_mgmt.ssi_signal = ssi_signal; | |
f8b1f695 | 4769 | wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); |
0915d02c JM |
4770 | break; |
4771 | case WLAN_FC_TYPE_CTRL: | |
4772 | /* can only get here with PS-Poll frames */ | |
4773 | wpa_printf(MSG_DEBUG, "CTRL"); | |
0d9fc3d8 | 4774 | from_unknown_sta(drv, buf, len); |
0915d02c JM |
4775 | break; |
4776 | case WLAN_FC_TYPE_DATA: | |
0d9fc3d8 | 4777 | from_unknown_sta(drv, buf, len); |
0915d02c JM |
4778 | break; |
4779 | } | |
4780 | } | |
4781 | ||
4782 | ||
4783 | static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) | |
4784 | { | |
4785 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
4786 | int len; | |
4787 | unsigned char buf[3000]; | |
4788 | struct ieee80211_radiotap_iterator iter; | |
4789 | int ret; | |
2a8b7416 | 4790 | int datarate = 0, ssi_signal = 0; |
4b9841d3 | 4791 | int injected = 0, failed = 0, rxflags = 0; |
0915d02c JM |
4792 | |
4793 | len = recv(sock, buf, sizeof(buf), 0); | |
4794 | if (len < 0) { | |
4795 | perror("recv"); | |
4796 | return; | |
4797 | } | |
4798 | ||
4799 | if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { | |
4800 | printf("received invalid radiotap frame\n"); | |
4801 | return; | |
4802 | } | |
4803 | ||
0915d02c JM |
4804 | while (1) { |
4805 | ret = ieee80211_radiotap_iterator_next(&iter); | |
4806 | if (ret == -ENOENT) | |
4807 | break; | |
4808 | if (ret) { | |
4809 | printf("received invalid radiotap frame (%d)\n", ret); | |
4810 | return; | |
4811 | } | |
4812 | switch (iter.this_arg_index) { | |
4813 | case IEEE80211_RADIOTAP_FLAGS: | |
4814 | if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) | |
4815 | len -= 4; | |
4816 | break; | |
4817 | case IEEE80211_RADIOTAP_RX_FLAGS: | |
4818 | rxflags = 1; | |
4819 | break; | |
4820 | case IEEE80211_RADIOTAP_TX_FLAGS: | |
4821 | injected = 1; | |
4822 | failed = le_to_host16((*(uint16_t *) iter.this_arg)) & | |
4823 | IEEE80211_RADIOTAP_F_TX_FAIL; | |
4824 | break; | |
4825 | case IEEE80211_RADIOTAP_DATA_RETRIES: | |
4826 | break; | |
4827 | case IEEE80211_RADIOTAP_CHANNEL: | |
2a8b7416 | 4828 | /* TODO: convert from freq/flags to channel number */ |
0915d02c JM |
4829 | break; |
4830 | case IEEE80211_RADIOTAP_RATE: | |
2a8b7416 | 4831 | datarate = *iter.this_arg * 5; |
0915d02c JM |
4832 | break; |
4833 | case IEEE80211_RADIOTAP_DB_ANTSIGNAL: | |
2a8b7416 | 4834 | ssi_signal = *iter.this_arg; |
0915d02c JM |
4835 | break; |
4836 | } | |
4837 | } | |
4838 | ||
4839 | if (rxflags && injected) | |
4840 | return; | |
4841 | ||
4842 | if (!injected) | |
4b9841d3 | 4843 | handle_frame(drv, buf + iter.max_length, |
2a8b7416 | 4844 | len - iter.max_length, datarate, ssi_signal); |
0915d02c | 4845 | else |
4b9841d3 JM |
4846 | handle_tx_callback(drv->ctx, buf + iter.max_length, |
4847 | len - iter.max_length, !failed); | |
0915d02c JM |
4848 | } |
4849 | ||
4850 | ||
4851 | /* | |
4852 | * we post-process the filter code later and rewrite | |
4853 | * this to the offset to the last instruction | |
4854 | */ | |
4855 | #define PASS 0xFF | |
4856 | #define FAIL 0xFE | |
4857 | ||
4858 | static struct sock_filter msock_filter_insns[] = { | |
4859 | /* | |
4860 | * do a little-endian load of the radiotap length field | |
4861 | */ | |
4862 | /* load lower byte into A */ | |
4863 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), | |
4864 | /* put it into X (== index register) */ | |
4865 | BPF_STMT(BPF_MISC| BPF_TAX, 0), | |
4866 | /* load upper byte into A */ | |
4867 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), | |
4868 | /* left-shift it by 8 */ | |
4869 | BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), | |
4870 | /* or with X */ | |
4871 | BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), | |
4872 | /* put result into X */ | |
4873 | BPF_STMT(BPF_MISC| BPF_TAX, 0), | |
4874 | ||
4875 | /* | |
4876 | * Allow management frames through, this also gives us those | |
4877 | * management frames that we sent ourselves with status | |
4878 | */ | |
4879 | /* load the lower byte of the IEEE 802.11 frame control field */ | |
4880 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
4881 | /* mask off frame type and version */ | |
4882 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), | |
4883 | /* accept frame if it's both 0, fall through otherwise */ | |
4884 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), | |
4885 | ||
4886 | /* | |
4887 | * TODO: add a bit to radiotap RX flags that indicates | |
4888 | * that the sending station is not associated, then | |
4889 | * add a filter here that filters on our DA and that flag | |
4890 | * to allow us to deauth frames to that bad station. | |
4891 | * | |
65ae1afd | 4892 | * For now allow all To DS data frames through. |
0915d02c | 4893 | */ |
65ae1afd HS |
4894 | /* load the IEEE 802.11 frame control field */ |
4895 | BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), | |
4896 | /* mask off frame type, version and DS status */ | |
4897 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), | |
4898 | /* accept frame if version 0, type 2 and To DS, fall through otherwise | |
4899 | */ | |
4900 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), | |
0915d02c JM |
4901 | |
4902 | #if 0 | |
4903 | /* | |
fbbfcbac | 4904 | * drop non-data frames |
0915d02c JM |
4905 | */ |
4906 | /* load the lower byte of the frame control field */ | |
4907 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
4908 | /* mask off QoS bit */ | |
4909 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), | |
4910 | /* drop non-data frames */ | |
4911 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), | |
fbbfcbac | 4912 | #endif |
0915d02c | 4913 | /* load the upper byte of the frame control field */ |
fbbfcbac | 4914 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), |
0915d02c JM |
4915 | /* mask off toDS/fromDS */ |
4916 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), | |
fbbfcbac FF |
4917 | /* accept WDS frames */ |
4918 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), | |
0915d02c JM |
4919 | |
4920 | /* | |
4921 | * add header length to index | |
4922 | */ | |
4923 | /* load the lower byte of the frame control field */ | |
4924 | BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), | |
4925 | /* mask off QoS bit */ | |
4926 | BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), | |
4927 | /* right shift it by 6 to give 0 or 2 */ | |
4928 | BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), | |
4929 | /* add data frame header length */ | |
4930 | BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), | |
4931 | /* add index, was start of 802.11 header */ | |
4932 | BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), | |
4933 | /* move to index, now start of LL header */ | |
4934 | BPF_STMT(BPF_MISC | BPF_TAX, 0), | |
4935 | ||
4936 | /* | |
4937 | * Accept empty data frames, we use those for | |
4938 | * polling activity. | |
4939 | */ | |
4940 | BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), | |
4941 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), | |
4942 | ||
4943 | /* | |
4944 | * Accept EAPOL frames | |
4945 | */ | |
4946 | BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), | |
4947 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), | |
4948 | BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), | |
4949 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), | |
4950 | ||
4951 | /* keep these last two statements or change the code below */ | |
4952 | /* return 0 == "DROP" */ | |
4953 | BPF_STMT(BPF_RET | BPF_K, 0), | |
4954 | /* return ~0 == "keep all" */ | |
4955 | BPF_STMT(BPF_RET | BPF_K, ~0), | |
4956 | }; | |
4957 | ||
4958 | static struct sock_fprog msock_filter = { | |
4959 | .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), | |
4960 | .filter = msock_filter_insns, | |
4961 | }; | |
4962 | ||
4963 | ||
4964 | static int add_monitor_filter(int s) | |
4965 | { | |
4966 | int idx; | |
4967 | ||
4968 | /* rewrite all PASS/FAIL jump offsets */ | |
4969 | for (idx = 0; idx < msock_filter.len; idx++) { | |
4970 | struct sock_filter *insn = &msock_filter_insns[idx]; | |
4971 | ||
4972 | if (BPF_CLASS(insn->code) == BPF_JMP) { | |
4973 | if (insn->code == (BPF_JMP|BPF_JA)) { | |
4974 | if (insn->k == PASS) | |
4975 | insn->k = msock_filter.len - idx - 2; | |
4976 | else if (insn->k == FAIL) | |
4977 | insn->k = msock_filter.len - idx - 3; | |
4978 | } | |
4979 | ||
4980 | if (insn->jt == PASS) | |
4981 | insn->jt = msock_filter.len - idx - 2; | |
4982 | else if (insn->jt == FAIL) | |
4983 | insn->jt = msock_filter.len - idx - 3; | |
4984 | ||
4985 | if (insn->jf == PASS) | |
4986 | insn->jf = msock_filter.len - idx - 2; | |
4987 | else if (insn->jf == FAIL) | |
4988 | insn->jf = msock_filter.len - idx - 3; | |
4989 | } | |
4990 | } | |
4991 | ||
4992 | if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, | |
4993 | &msock_filter, sizeof(msock_filter))) { | |
4994 | perror("SO_ATTACH_FILTER"); | |
4995 | return -1; | |
4996 | } | |
4997 | ||
4998 | return 0; | |
4999 | } | |
5000 | ||
5001 | ||
460456f8 JM |
5002 | static void nl80211_remove_monitor_interface( |
5003 | struct wpa_driver_nl80211_data *drv) | |
5004 | { | |
5005 | if (drv->monitor_ifidx >= 0) { | |
5006 | nl80211_remove_iface(drv, drv->monitor_ifidx); | |
5007 | drv->monitor_ifidx = -1; | |
5008 | } | |
504e905c JM |
5009 | if (drv->monitor_sock >= 0) { |
5010 | eloop_unregister_read_sock(drv->monitor_sock); | |
5011 | close(drv->monitor_sock); | |
5012 | drv->monitor_sock = -1; | |
5013 | } | |
460456f8 JM |
5014 | } |
5015 | ||
5016 | ||
0915d02c JM |
5017 | static int |
5018 | nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) | |
5019 | { | |
5020 | char buf[IFNAMSIZ]; | |
5021 | struct sockaddr_ll ll; | |
5022 | int optval; | |
5023 | socklen_t optlen; | |
0915d02c | 5024 | |
6758b167 JJ |
5025 | if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { |
5026 | /* | |
5027 | * P2P interface name is of the format p2p-%s-%d. For monitor | |
5028 | * interface name corresponding to P2P GO, replace "p2p-" with | |
5029 | * "mon-" to retain the same interface name length and to | |
5030 | * indicate that it is a monitor interface. | |
5031 | */ | |
5032 | snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); | |
5033 | } else { | |
5034 | /* Non-P2P interface with AP functionality. */ | |
5035 | snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); | |
5036 | } | |
5037 | ||
0915d02c JM |
5038 | buf[IFNAMSIZ - 1] = '\0'; |
5039 | ||
5040 | drv->monitor_ifidx = | |
fbbfcbac FF |
5041 | nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, |
5042 | 0); | |
0915d02c | 5043 | |
866af8b6 JM |
5044 | if (drv->monitor_ifidx == -EOPNOTSUPP) { |
5045 | wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " | |
5046 | "monitor interface type - try to run without it"); | |
5047 | drv->no_monitor_iface_capab = 1; | |
5048 | } | |
5049 | ||
0915d02c JM |
5050 | if (drv->monitor_ifidx < 0) |
5051 | return -1; | |
5052 | ||
c81eff1a | 5053 | if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) |
0915d02c | 5054 | goto error; |
0915d02c JM |
5055 | |
5056 | memset(&ll, 0, sizeof(ll)); | |
5057 | ll.sll_family = AF_PACKET; | |
5058 | ll.sll_ifindex = drv->monitor_ifidx; | |
5059 | drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); | |
5060 | if (drv->monitor_sock < 0) { | |
5061 | perror("socket[PF_PACKET,SOCK_RAW]"); | |
5062 | goto error; | |
5063 | } | |
5064 | ||
5065 | if (add_monitor_filter(drv->monitor_sock)) { | |
5066 | wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " | |
5067 | "interface; do filtering in user space"); | |
5068 | /* This works, but will cost in performance. */ | |
5069 | } | |
5070 | ||
2135f224 | 5071 | if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { |
0915d02c JM |
5072 | perror("monitor socket bind"); |
5073 | goto error; | |
5074 | } | |
5075 | ||
5076 | optlen = sizeof(optval); | |
5077 | optval = 20; | |
5078 | if (setsockopt | |
5079 | (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { | |
5080 | perror("Failed to set socket priority"); | |
5081 | goto error; | |
5082 | } | |
5083 | ||
5084 | if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, | |
5085 | drv, NULL)) { | |
5086 | printf("Could not register monitor read socket\n"); | |
5087 | goto error; | |
5088 | } | |
5089 | ||
5090 | return 0; | |
5091 | error: | |
460456f8 | 5092 | nl80211_remove_monitor_interface(drv); |
0915d02c JM |
5093 | return -1; |
5094 | } | |
5095 | ||
db149ac9 | 5096 | |
5fb1a232 | 5097 | #ifdef CONFIG_AP |
f10bfc9a JM |
5098 | static int nl80211_send_eapol_data(struct i802_bss *bss, |
5099 | const u8 *addr, const u8 *data, | |
5100 | size_t data_len, const u8 *own_addr) | |
5101 | { | |
5102 | if (bss->drv->l2 == NULL) { | |
5103 | wpa_printf(MSG_DEBUG, "nl80211: No l2_packet to send EAPOL"); | |
5104 | return -1; | |
5105 | } | |
5106 | ||
5107 | if (l2_packet_send(bss->drv->l2, addr, ETH_P_EAPOL, data, data_len) < | |
5108 | 0) | |
5109 | return -1; | |
5110 | return 0; | |
5111 | } | |
5fb1a232 JM |
5112 | #endif /* CONFIG_AP */ |
5113 | ||
f10bfc9a | 5114 | |
db149ac9 JM |
5115 | static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
5116 | ||
5117 | static int wpa_driver_nl80211_hapd_send_eapol( | |
5118 | void *priv, const u8 *addr, const u8 *data, | |
4378fc14 | 5119 | size_t data_len, int encrypt, const u8 *own_addr, u32 flags) |
db149ac9 | 5120 | { |
a2e40bb6 FF |
5121 | struct i802_bss *bss = priv; |
5122 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
db149ac9 JM |
5123 | struct ieee80211_hdr *hdr; |
5124 | size_t len; | |
5125 | u8 *pos; | |
5126 | int res; | |
4378fc14 | 5127 | int qos = flags & WPA_STA_WMM; |
db149ac9 | 5128 | |
5fb1a232 | 5129 | #ifdef CONFIG_AP |
f10bfc9a JM |
5130 | if (drv->no_monitor_iface_capab) |
5131 | return nl80211_send_eapol_data(bss, addr, data, data_len, | |
5132 | own_addr); | |
5fb1a232 | 5133 | #endif /* CONFIG_AP */ |
f10bfc9a | 5134 | |
db149ac9 JM |
5135 | len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + |
5136 | data_len; | |
5137 | hdr = os_zalloc(len); | |
5138 | if (hdr == NULL) { | |
5139 | printf("malloc() failed for i802_send_data(len=%lu)\n", | |
5140 | (unsigned long) len); | |
5141 | return -1; | |
5142 | } | |
5143 | ||
5144 | hdr->frame_control = | |
5145 | IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); | |
5146 | hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); | |
5147 | if (encrypt) | |
5148 | hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); | |
db149ac9 JM |
5149 | if (qos) { |
5150 | hdr->frame_control |= | |
5151 | host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); | |
5152 | } | |
db149ac9 JM |
5153 | |
5154 | memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); | |
5155 | memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); | |
5156 | memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); | |
5157 | pos = (u8 *) (hdr + 1); | |
5158 | ||
db149ac9 JM |
5159 | if (qos) { |
5160 | /* add an empty QoS header if needed */ | |
5161 | pos[0] = 0; | |
5162 | pos[1] = 0; | |
5163 | pos += 2; | |
5164 | } | |
db149ac9 JM |
5165 | |
5166 | memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); | |
5167 | pos += sizeof(rfc1042_header); | |
5168 | WPA_PUT_BE16(pos, ETH_P_PAE); | |
5169 | pos += 2; | |
5170 | memcpy(pos, data, data_len); | |
5171 | ||
5172 | res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt); | |
5173 | if (res < 0) { | |
5174 | wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " | |
5175 | "failed: %d (%s)", | |
5176 | (unsigned long) len, errno, strerror(errno)); | |
5177 | } | |
7bf12757 | 5178 | os_free(hdr); |
db149ac9 JM |
5179 | |
5180 | return res; | |
5181 | } | |
5182 | ||
a8d6ffa4 | 5183 | |
3234cba4 JM |
5184 | static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, |
5185 | int total_flags, | |
4c32757d | 5186 | int flags_or, int flags_and) |
a8d6ffa4 | 5187 | { |
a2e40bb6 FF |
5188 | struct i802_bss *bss = priv; |
5189 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
a8d6ffa4 | 5190 | struct nl_msg *msg, *flags = NULL; |
7e76ee9c | 5191 | struct nl80211_sta_flag_update upd; |
a8d6ffa4 JM |
5192 | |
5193 | msg = nlmsg_alloc(); | |
5194 | if (!msg) | |
5195 | return -ENOMEM; | |
5196 | ||
5197 | flags = nlmsg_alloc(); | |
5198 | if (!flags) { | |
5199 | nlmsg_free(msg); | |
5200 | return -ENOMEM; | |
5201 | } | |
5202 | ||
9fb04070 | 5203 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); |
a8d6ffa4 JM |
5204 | |
5205 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
3234cba4 | 5206 | if_nametoindex(bss->ifname)); |
a8d6ffa4 JM |
5207 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
5208 | ||
7e76ee9c JM |
5209 | /* |
5210 | * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This | |
5211 | * can be removed eventually. | |
5212 | */ | |
0de39516 | 5213 | if (total_flags & WPA_STA_AUTHORIZED) |
a8d6ffa4 JM |
5214 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED); |
5215 | ||
0de39516 | 5216 | if (total_flags & WPA_STA_WMM) |
a8d6ffa4 JM |
5217 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME); |
5218 | ||
0de39516 | 5219 | if (total_flags & WPA_STA_SHORT_PREAMBLE) |
a8d6ffa4 JM |
5220 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE); |
5221 | ||
0de39516 | 5222 | if (total_flags & WPA_STA_MFP) |
a8d6ffa4 JM |
5223 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP); |
5224 | ||
45b722f1 AN |
5225 | if (total_flags & WPA_STA_TDLS_PEER) |
5226 | NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER); | |
5227 | ||
a8d6ffa4 JM |
5228 | if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags)) |
5229 | goto nla_put_failure; | |
5230 | ||
7e76ee9c JM |
5231 | os_memset(&upd, 0, sizeof(upd)); |
5232 | upd.mask = sta_flags_nl80211(flags_or | ~flags_and); | |
5233 | upd.set = sta_flags_nl80211(flags_or); | |
5234 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
5235 | ||
a8d6ffa4 JM |
5236 | nlmsg_free(flags); |
5237 | ||
5238 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
5239 | nla_put_failure: | |
5240 | nlmsg_free(flags); | |
5241 | return -ENOBUFS; | |
5242 | } | |
5243 | ||
0915d02c | 5244 | |
1581b38b JM |
5245 | static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, |
5246 | struct wpa_driver_associate_params *params) | |
5247 | { | |
b1f625e0 EP |
5248 | enum nl80211_iftype nlmode; |
5249 | ||
5250 | if (params->p2p) { | |
046b26a2 JM |
5251 | wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " |
5252 | "group (GO)"); | |
b1f625e0 EP |
5253 | nlmode = NL80211_IFTYPE_P2P_GO; |
5254 | } else | |
5255 | nlmode = NL80211_IFTYPE_AP; | |
5256 | ||
5257 | if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) || | |
f019981a | 5258 | wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) { |
460456f8 | 5259 | nl80211_remove_monitor_interface(drv); |
1581b38b | 5260 | return -1; |
0915d02c | 5261 | } |
1581b38b | 5262 | |
86957e62 JM |
5263 | if (drv->no_monitor_iface_capab) { |
5264 | if (wpa_driver_nl80211_probe_req_report(&drv->first_bss, 1) < 0) | |
5265 | { | |
5266 | wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " | |
5267 | "Probe Request frame reporting in AP mode"); | |
5268 | /* Try to survive without this */ | |
5269 | } | |
5270 | } | |
5271 | ||
5272 | drv->ap_oper_freq = params->freq; | |
1581b38b JM |
5273 | |
5274 | return 0; | |
5275 | } | |
1581b38b JM |
5276 | |
5277 | ||
5cc4d64b JM |
5278 | static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) |
5279 | { | |
5280 | struct nl_msg *msg; | |
5281 | int ret = -1; | |
5282 | ||
5283 | msg = nlmsg_alloc(); | |
5284 | if (!msg) | |
5285 | return -1; | |
5286 | ||
9fb04070 | 5287 | nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); |
5cc4d64b JM |
5288 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
5289 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5290 | msg = NULL; | |
5291 | if (ret) { | |
5292 | wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " | |
5293 | "(%s)", ret, strerror(-ret)); | |
5294 | goto nla_put_failure; | |
5295 | } | |
5296 | ||
5297 | ret = 0; | |
5298 | wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); | |
5299 | ||
5300 | nla_put_failure: | |
5301 | nlmsg_free(msg); | |
5302 | return ret; | |
5303 | } | |
5304 | ||
5305 | ||
5306 | static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, | |
5307 | struct wpa_driver_associate_params *params) | |
5308 | { | |
5309 | struct nl_msg *msg; | |
5310 | int ret = -1; | |
5311 | int count = 0; | |
5312 | ||
5313 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); | |
5314 | ||
b1f625e0 EP |
5315 | if (wpa_driver_nl80211_set_mode(&drv->first_bss, |
5316 | NL80211_IFTYPE_ADHOC)) { | |
5cc4d64b JM |
5317 | wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " |
5318 | "IBSS mode"); | |
5319 | return -1; | |
5320 | } | |
5321 | ||
5322 | retry: | |
5323 | msg = nlmsg_alloc(); | |
5324 | if (!msg) | |
5325 | return -1; | |
5326 | ||
9fb04070 | 5327 | nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); |
5cc4d64b JM |
5328 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
5329 | ||
5330 | if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) | |
5331 | goto nla_put_failure; | |
5332 | ||
5333 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
5334 | params->ssid, params->ssid_len); | |
5335 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
5336 | params->ssid); | |
5337 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
5338 | drv->ssid_len = params->ssid_len; | |
5339 | ||
5340 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
5341 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
5342 | ||
5343 | ret = nl80211_set_conn_keys(params, msg); | |
5344 | if (ret) | |
5345 | goto nla_put_failure; | |
5346 | ||
a95795ad JM |
5347 | if (params->wpa_ie) { |
5348 | wpa_hexdump(MSG_DEBUG, | |
5349 | " * Extra IEs for Beacon/Probe Response frames", | |
5350 | params->wpa_ie, params->wpa_ie_len); | |
5351 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
5352 | params->wpa_ie); | |
5353 | } | |
5354 | ||
5cc4d64b JM |
5355 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
5356 | msg = NULL; | |
5357 | if (ret) { | |
5358 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", | |
5359 | ret, strerror(-ret)); | |
5360 | count++; | |
5361 | if (ret == -EALREADY && count == 1) { | |
5362 | wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " | |
5363 | "forced leave"); | |
5364 | nl80211_leave_ibss(drv); | |
5365 | nlmsg_free(msg); | |
5366 | goto retry; | |
5367 | } | |
5368 | ||
5369 | goto nla_put_failure; | |
5370 | } | |
5371 | ret = 0; | |
5372 | wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); | |
5373 | ||
5374 | nla_put_failure: | |
5375 | nlmsg_free(msg); | |
5376 | return ret; | |
5377 | } | |
5378 | ||
5379 | ||
20f5a4c2 JM |
5380 | static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv, |
5381 | u8 *bssid) | |
5382 | { | |
5383 | struct nl_msg *msg; | |
5384 | int ret; | |
5385 | struct nl80211_bss_info_arg arg; | |
5386 | ||
5387 | os_memset(&arg, 0, sizeof(arg)); | |
5388 | msg = nlmsg_alloc(); | |
5389 | if (!msg) | |
5390 | goto nla_put_failure; | |
5391 | ||
9fb04070 | 5392 | nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); |
20f5a4c2 JM |
5393 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
5394 | ||
5395 | arg.drv = drv; | |
5396 | ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); | |
5397 | msg = NULL; | |
5398 | if (ret == 0) { | |
5399 | if (is_zero_ether_addr(arg.assoc_bssid)) | |
5400 | return -ENOTCONN; | |
5401 | os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN); | |
5402 | return 0; | |
5403 | } | |
5404 | wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " | |
5405 | "(%s)", ret, strerror(-ret)); | |
5406 | nla_put_failure: | |
5407 | nlmsg_free(msg); | |
5408 | return drv->assoc_freq; | |
5409 | } | |
5410 | ||
5411 | ||
5412 | static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv, | |
5413 | const u8 *bssid) | |
5414 | { | |
5415 | u8 addr[ETH_ALEN]; | |
5416 | ||
5417 | if (bssid == NULL) { | |
5418 | int res = nl80211_get_assoc_bssid(drv, addr); | |
5419 | if (res) | |
5420 | return res; | |
5421 | bssid = addr; | |
5422 | } | |
5423 | ||
5424 | return wpa_driver_nl80211_disconnect(drv, bssid, | |
5425 | WLAN_REASON_PREV_AUTH_NOT_VALID); | |
5426 | } | |
5427 | ||
5428 | ||
cfaab580 ZY |
5429 | static int wpa_driver_nl80211_connect( |
5430 | struct wpa_driver_nl80211_data *drv, | |
5431 | struct wpa_driver_associate_params *params) | |
5432 | { | |
5433 | struct nl_msg *msg; | |
5434 | enum nl80211_auth_type type; | |
5435 | int ret = 0; | |
3f360238 | 5436 | int algs; |
cfaab580 ZY |
5437 | |
5438 | msg = nlmsg_alloc(); | |
5439 | if (!msg) | |
5440 | return -1; | |
5441 | ||
5442 | wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); | |
9fb04070 | 5443 | nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); |
cfaab580 ZY |
5444 | |
5445 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5446 | if (params->bssid) { | |
5447 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
5448 | MAC2STR(params->bssid)); | |
5449 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
5450 | } | |
5451 | if (params->freq) { | |
5452 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
5453 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
5454 | } | |
5455 | if (params->ssid) { | |
5456 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
5457 | params->ssid, params->ssid_len); | |
5458 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
5459 | params->ssid); | |
5460 | if (params->ssid_len > sizeof(drv->ssid)) | |
5461 | goto nla_put_failure; | |
5462 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
5463 | drv->ssid_len = params->ssid_len; | |
5464 | } | |
5465 | wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); | |
5466 | if (params->wpa_ie) | |
5467 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
5468 | params->wpa_ie); | |
5469 | ||
3f360238 JM |
5470 | algs = 0; |
5471 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) | |
5472 | algs++; | |
5473 | if (params->auth_alg & WPA_AUTH_ALG_SHARED) | |
5474 | algs++; | |
5475 | if (params->auth_alg & WPA_AUTH_ALG_LEAP) | |
5476 | algs++; | |
5477 | if (algs > 1) { | |
5478 | wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " | |
5479 | "selection"); | |
5480 | goto skip_auth_type; | |
5481 | } | |
5482 | ||
abd9fafa | 5483 | if (params->auth_alg & WPA_AUTH_ALG_OPEN) |
cfaab580 | 5484 | type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
abd9fafa | 5485 | else if (params->auth_alg & WPA_AUTH_ALG_SHARED) |
cfaab580 | 5486 | type = NL80211_AUTHTYPE_SHARED_KEY; |
abd9fafa | 5487 | else if (params->auth_alg & WPA_AUTH_ALG_LEAP) |
cfaab580 | 5488 | type = NL80211_AUTHTYPE_NETWORK_EAP; |
abd9fafa | 5489 | else if (params->auth_alg & WPA_AUTH_ALG_FT) |
cfaab580 ZY |
5490 | type = NL80211_AUTHTYPE_FT; |
5491 | else | |
5492 | goto nla_put_failure; | |
5493 | ||
5494 | wpa_printf(MSG_DEBUG, " * Auth Type %d", type); | |
5495 | NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); | |
5496 | ||
3f360238 | 5497 | skip_auth_type: |
64fa840a JM |
5498 | if (params->wpa_proto) { |
5499 | enum nl80211_wpa_versions ver = 0; | |
cfaab580 | 5500 | |
64fa840a JM |
5501 | if (params->wpa_proto & WPA_PROTO_WPA) |
5502 | ver |= NL80211_WPA_VERSION_1; | |
5503 | if (params->wpa_proto & WPA_PROTO_RSN) | |
5504 | ver |= NL80211_WPA_VERSION_2; | |
cfaab580 | 5505 | |
64fa840a | 5506 | wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); |
cfaab580 ZY |
5507 | NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); |
5508 | } | |
5509 | ||
5510 | if (params->pairwise_suite != CIPHER_NONE) { | |
c1bb3e0a | 5511 | int cipher; |
cfaab580 ZY |
5512 | |
5513 | switch (params->pairwise_suite) { | |
5514 | case CIPHER_WEP40: | |
5515 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
5516 | break; | |
5517 | case CIPHER_WEP104: | |
5518 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
5519 | break; | |
5520 | case CIPHER_CCMP: | |
5521 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
5522 | break; | |
5523 | case CIPHER_TKIP: | |
5524 | default: | |
5525 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
5526 | break; | |
5527 | } | |
5528 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); | |
5529 | } | |
5530 | ||
5531 | if (params->group_suite != CIPHER_NONE) { | |
c1bb3e0a | 5532 | int cipher; |
cfaab580 ZY |
5533 | |
5534 | switch (params->group_suite) { | |
5535 | case CIPHER_WEP40: | |
5536 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
5537 | break; | |
5538 | case CIPHER_WEP104: | |
5539 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
5540 | break; | |
5541 | case CIPHER_CCMP: | |
5542 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
5543 | break; | |
5544 | case CIPHER_TKIP: | |
5545 | default: | |
5546 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
5547 | break; | |
5548 | } | |
5549 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); | |
5550 | } | |
5551 | ||
5552 | if (params->key_mgmt_suite == KEY_MGMT_802_1X || | |
5553 | params->key_mgmt_suite == KEY_MGMT_PSK) { | |
5554 | int mgmt = WLAN_AKM_SUITE_PSK; | |
5555 | ||
5556 | switch (params->key_mgmt_suite) { | |
5557 | case KEY_MGMT_802_1X: | |
5558 | mgmt = WLAN_AKM_SUITE_8021X; | |
5559 | break; | |
5560 | case KEY_MGMT_PSK: | |
5561 | default: | |
5562 | mgmt = WLAN_AKM_SUITE_PSK; | |
5563 | break; | |
5564 | } | |
5565 | NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); | |
5566 | } | |
5567 | ||
5568 | ret = nl80211_set_conn_keys(params, msg); | |
5569 | if (ret) | |
5570 | goto nla_put_failure; | |
5571 | ||
5572 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5573 | msg = NULL; | |
5574 | if (ret) { | |
5575 | wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " | |
5576 | "(%s)", ret, strerror(-ret)); | |
20f5a4c2 JM |
5577 | /* |
5578 | * cfg80211 does not currently accept new connection if we are | |
5579 | * already connected. As a workaround, force disconnection and | |
5580 | * try again once the driver indicates it completed | |
5581 | * disconnection. | |
5582 | */ | |
5583 | if (ret == -EALREADY) | |
5584 | nl80211_disconnect(drv, params->bssid); | |
cfaab580 ZY |
5585 | goto nla_put_failure; |
5586 | } | |
5587 | ret = 0; | |
5588 | wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); | |
5589 | ||
5590 | nla_put_failure: | |
5591 | nlmsg_free(msg); | |
5592 | return ret; | |
5593 | ||
5594 | } | |
5595 | ||
5596 | ||
c2a04078 JM |
5597 | static int wpa_driver_nl80211_associate( |
5598 | void *priv, struct wpa_driver_associate_params *params) | |
5599 | { | |
a2e40bb6 FF |
5600 | struct i802_bss *bss = priv; |
5601 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c2a04078 JM |
5602 | int ret = -1; |
5603 | struct nl_msg *msg; | |
5604 | ||
5cc4d64b | 5605 | if (params->mode == IEEE80211_MODE_AP) |
1581b38b | 5606 | return wpa_driver_nl80211_ap(drv, params); |
1581b38b | 5607 | |
5cc4d64b JM |
5608 | if (params->mode == IEEE80211_MODE_IBSS) |
5609 | return wpa_driver_nl80211_ibss(drv, params); | |
5610 | ||
4a867032 | 5611 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { |
b1f625e0 EP |
5612 | enum nl80211_iftype nlmode = params->p2p ? |
5613 | NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; | |
5614 | ||
5615 | if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) | |
4a867032 | 5616 | return -1; |
cfaab580 | 5617 | return wpa_driver_nl80211_connect(drv, params); |
4a867032 | 5618 | } |
cfaab580 | 5619 | |
c2a04078 JM |
5620 | drv->associated = 0; |
5621 | ||
5622 | msg = nlmsg_alloc(); | |
5623 | if (!msg) | |
5624 | return -1; | |
5625 | ||
5626 | wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", | |
5627 | drv->ifindex); | |
9fb04070 | 5628 | nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); |
c2a04078 JM |
5629 | |
5630 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
5631 | if (params->bssid) { | |
5632 | wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, | |
5633 | MAC2STR(params->bssid)); | |
5634 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); | |
5635 | } | |
5636 | if (params->freq) { | |
5637 | wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); | |
5638 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); | |
4832ecd7 JM |
5639 | drv->assoc_freq = params->freq; |
5640 | } else | |
5641 | drv->assoc_freq = 0; | |
c2a04078 JM |
5642 | if (params->ssid) { |
5643 | wpa_hexdump_ascii(MSG_DEBUG, " * SSID", | |
5644 | params->ssid, params->ssid_len); | |
5645 | NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, | |
5646 | params->ssid); | |
fd05d64e JM |
5647 | if (params->ssid_len > sizeof(drv->ssid)) |
5648 | goto nla_put_failure; | |
5649 | os_memcpy(drv->ssid, params->ssid, params->ssid_len); | |
5650 | drv->ssid_len = params->ssid_len; | |
c2a04078 JM |
5651 | } |
5652 | wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); | |
5653 | if (params->wpa_ie) | |
5654 | NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, | |
5655 | params->wpa_ie); | |
5656 | ||
aca01605 JM |
5657 | if (params->pairwise_suite != CIPHER_NONE) { |
5658 | int cipher; | |
5659 | ||
5660 | switch (params->pairwise_suite) { | |
5661 | case CIPHER_WEP40: | |
5662 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
5663 | break; | |
5664 | case CIPHER_WEP104: | |
5665 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
5666 | break; | |
5667 | case CIPHER_CCMP: | |
5668 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
5669 | break; | |
5670 | case CIPHER_TKIP: | |
5671 | default: | |
5672 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
5673 | break; | |
5674 | } | |
79c3124c | 5675 | wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); |
aca01605 JM |
5676 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); |
5677 | } | |
5678 | ||
5679 | if (params->group_suite != CIPHER_NONE) { | |
5680 | int cipher; | |
5681 | ||
5682 | switch (params->group_suite) { | |
5683 | case CIPHER_WEP40: | |
5684 | cipher = WLAN_CIPHER_SUITE_WEP40; | |
5685 | break; | |
5686 | case CIPHER_WEP104: | |
5687 | cipher = WLAN_CIPHER_SUITE_WEP104; | |
5688 | break; | |
5689 | case CIPHER_CCMP: | |
5690 | cipher = WLAN_CIPHER_SUITE_CCMP; | |
5691 | break; | |
5692 | case CIPHER_TKIP: | |
5693 | default: | |
5694 | cipher = WLAN_CIPHER_SUITE_TKIP; | |
5695 | break; | |
5696 | } | |
79c3124c | 5697 | wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); |
aca01605 JM |
5698 | NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); |
5699 | } | |
5700 | ||
e572fa33 JM |
5701 | #ifdef CONFIG_IEEE80211W |
5702 | if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) | |
5703 | NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); | |
5704 | #endif /* CONFIG_IEEE80211W */ | |
5705 | ||
01652550 JM |
5706 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); |
5707 | ||
62fa124c JM |
5708 | if (params->prev_bssid) { |
5709 | wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, | |
5710 | MAC2STR(params->prev_bssid)); | |
5711 | NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, | |
5712 | params->prev_bssid); | |
5713 | } | |
5714 | ||
046b26a2 JM |
5715 | if (params->p2p) |
5716 | wpa_printf(MSG_DEBUG, " * P2P group"); | |
5717 | ||
c2a04078 JM |
5718 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
5719 | msg = NULL; | |
5720 | if (ret) { | |
5721 | wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d " | |
5722 | "(%s)", ret, strerror(-ret)); | |
8856462d | 5723 | nl80211_dump_scan(drv); |
c2a04078 JM |
5724 | goto nla_put_failure; |
5725 | } | |
5726 | ret = 0; | |
5727 | wpa_printf(MSG_DEBUG, "nl80211: Association request send " | |
5728 | "successfully"); | |
5729 | ||
5730 | nla_put_failure: | |
5731 | nlmsg_free(msg); | |
5732 | return ret; | |
5733 | } | |
3f5285e8 JM |
5734 | |
5735 | ||
ad1e68e6 | 5736 | static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, |
a1922f93 | 5737 | int ifindex, enum nl80211_iftype mode) |
3f5285e8 | 5738 | { |
3f5285e8 | 5739 | struct nl_msg *msg; |
ad1e68e6 JM |
5740 | int ret = -ENOBUFS; |
5741 | ||
a1922f93 JM |
5742 | wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", |
5743 | ifindex, mode, nl80211_iftype_str(mode)); | |
5744 | ||
ad1e68e6 JM |
5745 | msg = nlmsg_alloc(); |
5746 | if (!msg) | |
5747 | return -ENOMEM; | |
5748 | ||
9fb04070 | 5749 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); |
ad1e68e6 JM |
5750 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
5751 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); | |
5752 | ||
5753 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
5754 | if (!ret) | |
5755 | return 0; | |
5756 | nla_put_failure: | |
5757 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" | |
5758 | " %d (%s)", ifindex, mode, ret, strerror(-ret)); | |
5759 | return ret; | |
5760 | } | |
5761 | ||
5762 | ||
b1f625e0 EP |
5763 | static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, |
5764 | enum nl80211_iftype nlmode) | |
ad1e68e6 | 5765 | { |
a2e40bb6 | 5766 | struct wpa_driver_nl80211_data *drv = bss->drv; |
ad1e68e6 | 5767 | int ret = -1; |
26af9dca | 5768 | int i; |
86957e62 | 5769 | int was_ap = is_ap_interface(drv->nlmode); |
1581b38b | 5770 | |
ad1e68e6 JM |
5771 | if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) { |
5772 | drv->nlmode = nlmode; | |
460456f8 JM |
5773 | ret = 0; |
5774 | goto done; | |
ad1e68e6 | 5775 | } |
3f5285e8 | 5776 | |
460456f8 | 5777 | if (nlmode == drv->nlmode) { |
c6e8e8e4 JM |
5778 | wpa_printf(MSG_DEBUG, "nl80211: Interface already in " |
5779 | "requested mode - ignore error"); | |
460456f8 JM |
5780 | ret = 0; |
5781 | goto done; /* Already in the requested mode */ | |
5782 | } | |
3f5285e8 | 5783 | |
3f5285e8 JM |
5784 | /* mac80211 doesn't allow mode changes while the device is up, so |
5785 | * take the device down, try to set the mode again, and bring the | |
5786 | * device back up. | |
5787 | */ | |
26af9dca JM |
5788 | wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " |
5789 | "interface down"); | |
5790 | for (i = 0; i < 10; i++) { | |
6e8183d7 | 5791 | int res; |
c81eff1a BG |
5792 | res = linux_set_iface_flags(drv->global->ioctl_sock, |
5793 | bss->ifname, 0); | |
6e8183d7 JM |
5794 | if (res == -EACCES || res == -ENODEV) |
5795 | break; | |
5796 | if (res == 0) { | |
26af9dca JM |
5797 | /* Try to set the mode again while the interface is |
5798 | * down */ | |
5799 | ret = nl80211_set_mode(drv, drv->ifindex, nlmode); | |
6e8183d7 JM |
5800 | if (ret == -EACCES) |
5801 | break; | |
c81eff1a | 5802 | res = linux_set_iface_flags(drv->global->ioctl_sock, |
6e8183d7 JM |
5803 | bss->ifname, 1); |
5804 | if (res && !ret) | |
26af9dca | 5805 | ret = -1; |
6e8183d7 | 5806 | else if (ret != -EBUSY) |
26af9dca JM |
5807 | break; |
5808 | } else | |
5809 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set " | |
5810 | "interface down"); | |
5811 | os_sleep(0, 100000); | |
3f5285e8 JM |
5812 | } |
5813 | ||
c6e8e8e4 JM |
5814 | if (!ret) { |
5815 | wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " | |
5816 | "interface is down"); | |
ad1e68e6 | 5817 | drv->nlmode = nlmode; |
7d9c3698 | 5818 | drv->ignore_if_down_event = 1; |
c6e8e8e4 | 5819 | } |
ad1e68e6 | 5820 | |
460456f8 | 5821 | done: |
b1f625e0 | 5822 | if (!ret && is_ap_interface(nlmode)) { |
460456f8 | 5823 | /* Setup additional AP mode functionality if needed */ |
866af8b6 JM |
5824 | if (!drv->no_monitor_iface_capab && drv->monitor_ifidx < 0 && |
5825 | nl80211_create_monitor_interface(drv) && | |
5826 | !drv->no_monitor_iface_capab) | |
460456f8 | 5827 | return -1; |
b1f625e0 | 5828 | } else if (!ret && !is_ap_interface(nlmode)) { |
460456f8 | 5829 | /* Remove additional AP mode functionality */ |
86957e62 JM |
5830 | if (was_ap && drv->no_monitor_iface_capab) |
5831 | wpa_driver_nl80211_probe_req_report(bss, 0); | |
460456f8 | 5832 | nl80211_remove_monitor_interface(drv); |
a2e40bb6 | 5833 | bss->beacon_set = 0; |
460456f8 | 5834 | } |
460456f8 | 5835 | |
b3af99d2 | 5836 | if (!ret && is_p2p_interface(drv->nlmode)) { |
08359050 | 5837 | nl80211_disable_11b_rates(drv, drv->ifindex, 1); |
b3af99d2 JM |
5838 | drv->disabled_11b_rates = 1; |
5839 | } else if (!ret && drv->disabled_11b_rates) { | |
5840 | nl80211_disable_11b_rates(drv, drv->ifindex, 0); | |
5841 | drv->disabled_11b_rates = 0; | |
5842 | } | |
08359050 | 5843 | |
c6e8e8e4 JM |
5844 | if (ret) |
5845 | wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " | |
5846 | "from %d failed", nlmode, drv->nlmode); | |
5847 | ||
3f5285e8 JM |
5848 | return ret; |
5849 | } | |
5850 | ||
5851 | ||
3f5285e8 JM |
5852 | static int wpa_driver_nl80211_get_capa(void *priv, |
5853 | struct wpa_driver_capa *capa) | |
5854 | { | |
a2e40bb6 FF |
5855 | struct i802_bss *bss = priv; |
5856 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 JM |
5857 | if (!drv->has_capability) |
5858 | return -1; | |
5859 | os_memcpy(capa, &drv->capa, sizeof(*capa)); | |
5860 | return 0; | |
5861 | } | |
5862 | ||
5863 | ||
5864 | static int wpa_driver_nl80211_set_operstate(void *priv, int state) | |
5865 | { | |
a2e40bb6 FF |
5866 | struct i802_bss *bss = priv; |
5867 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
3f5285e8 JM |
5868 | |
5869 | wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", | |
5870 | __func__, drv->operstate, state, state ? "UP" : "DORMANT"); | |
5871 | drv->operstate = state; | |
36d84860 | 5872 | return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, |
e2d02c29 | 5873 | state ? IF_OPER_UP : IF_OPER_DORMANT); |
3f5285e8 JM |
5874 | } |
5875 | ||
01652550 JM |
5876 | |
5877 | static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) | |
5878 | { | |
a2e40bb6 FF |
5879 | struct i802_bss *bss = priv; |
5880 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
01652550 JM |
5881 | struct nl_msg *msg; |
5882 | struct nl80211_sta_flag_update upd; | |
5883 | ||
5884 | msg = nlmsg_alloc(); | |
5885 | if (!msg) | |
5886 | return -ENOMEM; | |
5887 | ||
9fb04070 | 5888 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); |
01652550 JM |
5889 | |
5890 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 5891 | if_nametoindex(bss->ifname)); |
01652550 JM |
5892 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); |
5893 | ||
5894 | os_memset(&upd, 0, sizeof(upd)); | |
5895 | upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); | |
5896 | if (authorized) | |
5897 | upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); | |
5898 | NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); | |
5899 | ||
5900 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
5901 | nla_put_failure: | |
5902 | return -ENOBUFS; | |
5903 | } | |
5904 | ||
3f5285e8 | 5905 | |
f07ead6a JM |
5906 | /* Set kernel driver on given frequency (MHz) */ |
5907 | static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) | |
c5121837 | 5908 | { |
f07ead6a JM |
5909 | struct i802_bss *bss = priv; |
5910 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
5911 | return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled, | |
5912 | freq->sec_channel_offset); | |
c5121837 JM |
5913 | } |
5914 | ||
f7b3920c JM |
5915 | |
5916 | #if defined(HOSTAPD) || defined(CONFIG_AP) | |
c5121837 | 5917 | |
c5121837 JM |
5918 | static inline int min_int(int a, int b) |
5919 | { | |
5920 | if (a < b) | |
5921 | return a; | |
5922 | return b; | |
5923 | } | |
5924 | ||
5925 | ||
5926 | static int get_key_handler(struct nl_msg *msg, void *arg) | |
5927 | { | |
5928 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
5929 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
5930 | ||
5931 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
5932 | genlmsg_attrlen(gnlh, 0), NULL); | |
5933 | ||
5934 | /* | |
5935 | * TODO: validate the key index and mac address! | |
5936 | * Otherwise, there's a race condition as soon as | |
5937 | * the kernel starts sending key notifications. | |
5938 | */ | |
5939 | ||
5940 | if (tb[NL80211_ATTR_KEY_SEQ]) | |
5941 | memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), | |
5942 | min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); | |
5943 | return NL_SKIP; | |
5944 | } | |
5945 | ||
5946 | ||
5947 | static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, | |
5948 | int idx, u8 *seq) | |
5949 | { | |
a2e40bb6 FF |
5950 | struct i802_bss *bss = priv; |
5951 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
5952 | struct nl_msg *msg; |
5953 | ||
5954 | msg = nlmsg_alloc(); | |
5955 | if (!msg) | |
5956 | return -ENOMEM; | |
5957 | ||
9fb04070 | 5958 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); |
c5121837 JM |
5959 | |
5960 | if (addr) | |
5961 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5962 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); | |
5963 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); | |
5964 | ||
5965 | memset(seq, 0, 6); | |
5966 | ||
5967 | return send_and_recv_msgs(drv, msg, get_key_handler, seq); | |
5968 | nla_put_failure: | |
5969 | return -ENOBUFS; | |
5970 | } | |
5971 | ||
5972 | ||
5973 | static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates, | |
5974 | int mode) | |
5975 | { | |
a2e40bb6 FF |
5976 | struct i802_bss *bss = priv; |
5977 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
5978 | struct nl_msg *msg; |
5979 | u8 rates[NL80211_MAX_SUPP_RATES]; | |
5980 | u8 rates_len = 0; | |
5981 | int i; | |
5982 | ||
5983 | msg = nlmsg_alloc(); | |
5984 | if (!msg) | |
5985 | return -ENOMEM; | |
5986 | ||
9fb04070 | 5987 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); |
c5121837 JM |
5988 | |
5989 | for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++) | |
5990 | rates[rates_len++] = basic_rates[i] / 5; | |
5991 | ||
5992 | NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); | |
5993 | ||
a2e40bb6 | 5994 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
c5121837 JM |
5995 | |
5996 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
5997 | nla_put_failure: | |
5998 | return -ENOBUFS; | |
5999 | } | |
6000 | ||
e3802622 | 6001 | |
c5121837 JM |
6002 | static int i802_set_rts(void *priv, int rts) |
6003 | { | |
a2e40bb6 FF |
6004 | struct i802_bss *bss = priv; |
6005 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
ad649451 JM |
6006 | struct nl_msg *msg; |
6007 | int ret = -ENOBUFS; | |
6008 | u32 val; | |
c5121837 | 6009 | |
ad649451 JM |
6010 | msg = nlmsg_alloc(); |
6011 | if (!msg) | |
6012 | return -ENOMEM; | |
c5121837 | 6013 | |
ad649451 JM |
6014 | if (rts >= 2347) |
6015 | val = (u32) -1; | |
6016 | else | |
6017 | val = rts; | |
c5121837 | 6018 | |
9fb04070 | 6019 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
ad649451 JM |
6020 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
6021 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); | |
6022 | ||
6023 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
6024 | if (!ret) | |
6025 | return 0; | |
6026 | nla_put_failure: | |
6027 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " | |
6028 | "%d (%s)", rts, ret, strerror(-ret)); | |
6029 | return ret; | |
c5121837 JM |
6030 | } |
6031 | ||
6032 | ||
6033 | static int i802_set_frag(void *priv, int frag) | |
6034 | { | |
a2e40bb6 FF |
6035 | struct i802_bss *bss = priv; |
6036 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
ad649451 JM |
6037 | struct nl_msg *msg; |
6038 | int ret = -ENOBUFS; | |
6039 | u32 val; | |
c5121837 | 6040 | |
ad649451 JM |
6041 | msg = nlmsg_alloc(); |
6042 | if (!msg) | |
6043 | return -ENOMEM; | |
c5121837 | 6044 | |
ad649451 JM |
6045 | if (frag >= 2346) |
6046 | val = (u32) -1; | |
6047 | else | |
6048 | val = frag; | |
c5121837 | 6049 | |
9fb04070 | 6050 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
ad649451 JM |
6051 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
6052 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); | |
6053 | ||
6054 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
6055 | if (!ret) | |
6056 | return 0; | |
6057 | nla_put_failure: | |
6058 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " | |
6059 | "%d: %d (%s)", frag, ret, strerror(-ret)); | |
6060 | return ret; | |
c5121837 JM |
6061 | } |
6062 | ||
6063 | ||
c5121837 JM |
6064 | static int i802_flush(void *priv) |
6065 | { | |
a2e40bb6 FF |
6066 | struct i802_bss *bss = priv; |
6067 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
6068 | struct nl_msg *msg; |
6069 | ||
6070 | msg = nlmsg_alloc(); | |
6071 | if (!msg) | |
6072 | return -1; | |
6073 | ||
9fb04070 | 6074 | nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); |
c5121837 JM |
6075 | |
6076 | /* | |
6077 | * XXX: FIX! this needs to flush all VLANs too | |
6078 | */ | |
6079 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 6080 | if_nametoindex(bss->ifname)); |
c5121837 JM |
6081 | |
6082 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
6083 | nla_put_failure: | |
6084 | return -ENOBUFS; | |
6085 | } | |
6086 | ||
6087 | ||
6088 | static int get_sta_handler(struct nl_msg *msg, void *arg) | |
6089 | { | |
6090 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
6091 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
6092 | struct hostap_sta_driver_data *data = arg; | |
6093 | struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; | |
6094 | static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { | |
6095 | [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, | |
6096 | [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, | |
6097 | [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, | |
6098 | [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, | |
6099 | [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, | |
6100 | }; | |
6101 | ||
6102 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
6103 | genlmsg_attrlen(gnlh, 0), NULL); | |
6104 | ||
6105 | /* | |
6106 | * TODO: validate the interface and mac address! | |
6107 | * Otherwise, there's a race condition as soon as | |
6108 | * the kernel starts sending station notifications. | |
6109 | */ | |
6110 | ||
6111 | if (!tb[NL80211_ATTR_STA_INFO]) { | |
6112 | wpa_printf(MSG_DEBUG, "sta stats missing!"); | |
6113 | return NL_SKIP; | |
6114 | } | |
6115 | if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, | |
6116 | tb[NL80211_ATTR_STA_INFO], | |
6117 | stats_policy)) { | |
6118 | wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); | |
6119 | return NL_SKIP; | |
6120 | } | |
6121 | ||
6122 | if (stats[NL80211_STA_INFO_INACTIVE_TIME]) | |
6123 | data->inactive_msec = | |
6124 | nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); | |
6125 | if (stats[NL80211_STA_INFO_RX_BYTES]) | |
6126 | data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); | |
6127 | if (stats[NL80211_STA_INFO_TX_BYTES]) | |
6128 | data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); | |
6129 | if (stats[NL80211_STA_INFO_RX_PACKETS]) | |
6130 | data->rx_packets = | |
6131 | nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); | |
6132 | if (stats[NL80211_STA_INFO_TX_PACKETS]) | |
6133 | data->tx_packets = | |
6134 | nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); | |
6135 | ||
6136 | return NL_SKIP; | |
6137 | } | |
6138 | ||
6139 | static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data, | |
6140 | const u8 *addr) | |
6141 | { | |
a2e40bb6 FF |
6142 | struct i802_bss *bss = priv; |
6143 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
6144 | struct nl_msg *msg; |
6145 | ||
6146 | os_memset(data, 0, sizeof(*data)); | |
6147 | msg = nlmsg_alloc(); | |
6148 | if (!msg) | |
6149 | return -ENOMEM; | |
6150 | ||
9fb04070 | 6151 | nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); |
c5121837 JM |
6152 | |
6153 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
a2e40bb6 | 6154 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
c5121837 JM |
6155 | |
6156 | return send_and_recv_msgs(drv, msg, get_sta_handler, data); | |
6157 | nla_put_failure: | |
6158 | return -ENOBUFS; | |
6159 | } | |
6160 | ||
6161 | ||
c5121837 JM |
6162 | static int i802_set_tx_queue_params(void *priv, int queue, int aifs, |
6163 | int cw_min, int cw_max, int burst_time) | |
6164 | { | |
a2e40bb6 FF |
6165 | struct i802_bss *bss = priv; |
6166 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 JM |
6167 | struct nl_msg *msg; |
6168 | struct nlattr *txq, *params; | |
6169 | ||
6170 | msg = nlmsg_alloc(); | |
6171 | if (!msg) | |
6172 | return -1; | |
6173 | ||
9fb04070 | 6174 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
c5121837 | 6175 | |
a2e40bb6 | 6176 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
c5121837 JM |
6177 | |
6178 | txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); | |
6179 | if (!txq) | |
6180 | goto nla_put_failure; | |
6181 | ||
6182 | /* We are only sending parameters for a single TXQ at a time */ | |
6183 | params = nla_nest_start(msg, 1); | |
6184 | if (!params) | |
6185 | goto nla_put_failure; | |
6186 | ||
7e3c1781 JM |
6187 | switch (queue) { |
6188 | case 0: | |
6189 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); | |
6190 | break; | |
6191 | case 1: | |
6192 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); | |
6193 | break; | |
6194 | case 2: | |
6195 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); | |
6196 | break; | |
6197 | case 3: | |
6198 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); | |
6199 | break; | |
6200 | } | |
c5121837 JM |
6201 | /* Burst time is configured in units of 0.1 msec and TXOP parameter in |
6202 | * 32 usec, so need to convert the value here. */ | |
6203 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); | |
6204 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); | |
6205 | NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); | |
6206 | NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); | |
6207 | ||
6208 | nla_nest_end(msg, params); | |
6209 | ||
6210 | nla_nest_end(msg, txq); | |
6211 | ||
6212 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
6213 | return 0; | |
6214 | nla_put_failure: | |
6215 | return -1; | |
6216 | } | |
6217 | ||
6218 | ||
c5121837 JM |
6219 | static int i802_set_sta_vlan(void *priv, const u8 *addr, |
6220 | const char *ifname, int vlan_id) | |
6221 | { | |
a2e40bb6 FF |
6222 | struct i802_bss *bss = priv; |
6223 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c5121837 | 6224 | struct nl_msg *msg; |
cd1d72c1 | 6225 | int ret = -ENOBUFS; |
c5121837 JM |
6226 | |
6227 | msg = nlmsg_alloc(); | |
6228 | if (!msg) | |
6229 | return -ENOMEM; | |
6230 | ||
9fb04070 | 6231 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); |
c5121837 JM |
6232 | |
6233 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, | |
a2e40bb6 | 6234 | if_nametoindex(bss->ifname)); |
c5121837 | 6235 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
1c766b09 | 6236 | NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, |
c5121837 JM |
6237 | if_nametoindex(ifname)); |
6238 | ||
cd1d72c1 JM |
6239 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
6240 | if (ret < 0) { | |
6241 | wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" | |
6242 | MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", | |
6243 | MAC2STR(addr), ifname, vlan_id, ret, | |
6244 | strerror(-ret)); | |
6245 | } | |
c5121837 | 6246 | nla_put_failure: |
cd1d72c1 | 6247 | return ret; |
c5121837 JM |
6248 | } |
6249 | ||
fbbfcbac | 6250 | |
c5121837 JM |
6251 | static int i802_get_inact_sec(void *priv, const u8 *addr) |
6252 | { | |
6253 | struct hostap_sta_driver_data data; | |
6254 | int ret; | |
6255 | ||
6256 | data.inactive_msec = (unsigned long) -1; | |
6257 | ret = i802_read_sta_data(priv, &data, addr); | |
6258 | if (ret || data.inactive_msec == (unsigned long) -1) | |
6259 | return -1; | |
6260 | return data.inactive_msec / 1000; | |
6261 | } | |
6262 | ||
6263 | ||
6264 | static int i802_sta_clear_stats(void *priv, const u8 *addr) | |
6265 | { | |
6266 | #if 0 | |
6267 | /* TODO */ | |
6268 | #endif | |
6269 | return 0; | |
6270 | } | |
6271 | ||
6272 | ||
731723a5 JM |
6273 | static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, |
6274 | int reason) | |
c5121837 | 6275 | { |
a2e40bb6 | 6276 | struct i802_bss *bss = priv; |
c5121837 JM |
6277 | struct ieee80211_mgmt mgmt; |
6278 | ||
6279 | memset(&mgmt, 0, sizeof(mgmt)); | |
6280 | mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
6281 | WLAN_FC_STYPE_DEAUTH); | |
6282 | memcpy(mgmt.da, addr, ETH_ALEN); | |
731723a5 JM |
6283 | memcpy(mgmt.sa, own_addr, ETH_ALEN); |
6284 | memcpy(mgmt.bssid, own_addr, ETH_ALEN); | |
c5121837 | 6285 | mgmt.u.deauth.reason_code = host_to_le16(reason); |
a2e40bb6 | 6286 | return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, |
9f324b61 JM |
6287 | IEEE80211_HDRLEN + |
6288 | sizeof(mgmt.u.deauth)); | |
c5121837 JM |
6289 | } |
6290 | ||
6291 | ||
731723a5 JM |
6292 | static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, |
6293 | int reason) | |
c5121837 | 6294 | { |
a2e40bb6 | 6295 | struct i802_bss *bss = priv; |
c5121837 JM |
6296 | struct ieee80211_mgmt mgmt; |
6297 | ||
6298 | memset(&mgmt, 0, sizeof(mgmt)); | |
6299 | mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
6300 | WLAN_FC_STYPE_DISASSOC); | |
6301 | memcpy(mgmt.da, addr, ETH_ALEN); | |
731723a5 JM |
6302 | memcpy(mgmt.sa, own_addr, ETH_ALEN); |
6303 | memcpy(mgmt.bssid, own_addr, ETH_ALEN); | |
c5121837 | 6304 | mgmt.u.disassoc.reason_code = host_to_le16(reason); |
a2e40bb6 | 6305 | return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, |
9f324b61 JM |
6306 | IEEE80211_HDRLEN + |
6307 | sizeof(mgmt.u.disassoc)); | |
c5121837 JM |
6308 | } |
6309 | ||
ee7ab173 JB |
6310 | #endif /* HOSTAPD || CONFIG_AP */ |
6311 | ||
6312 | #ifdef HOSTAPD | |
c5121837 | 6313 | |
f07ead6a JM |
6314 | static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) |
6315 | { | |
6316 | int i; | |
6317 | int *old; | |
6318 | ||
6319 | wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", | |
6320 | ifidx); | |
6321 | for (i = 0; i < drv->num_if_indices; i++) { | |
6322 | if (drv->if_indices[i] == 0) { | |
6323 | drv->if_indices[i] = ifidx; | |
6324 | return; | |
6325 | } | |
6326 | } | |
6327 | ||
6328 | if (drv->if_indices != drv->default_if_indices) | |
6329 | old = drv->if_indices; | |
6330 | else | |
6331 | old = NULL; | |
6332 | ||
6333 | drv->if_indices = os_realloc(old, | |
6334 | sizeof(int) * (drv->num_if_indices + 1)); | |
6335 | if (!drv->if_indices) { | |
6336 | if (!old) | |
6337 | drv->if_indices = drv->default_if_indices; | |
6338 | else | |
6339 | drv->if_indices = old; | |
6340 | wpa_printf(MSG_ERROR, "Failed to reallocate memory for " | |
6341 | "interfaces"); | |
6342 | wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); | |
6343 | return; | |
6344 | } else if (!old) | |
6345 | os_memcpy(drv->if_indices, drv->default_if_indices, | |
6346 | sizeof(drv->default_if_indices)); | |
6347 | drv->if_indices[drv->num_if_indices] = ifidx; | |
6348 | drv->num_if_indices++; | |
6349 | } | |
6350 | ||
6351 | ||
6352 | static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
6353 | { | |
6354 | int i; | |
6355 | ||
6356 | for (i = 0; i < drv->num_if_indices; i++) { | |
6357 | if (drv->if_indices[i] == ifidx) { | |
6358 | drv->if_indices[i] = 0; | |
6359 | break; | |
6360 | } | |
6361 | } | |
6362 | } | |
6363 | ||
6364 | ||
6365 | static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) | |
6366 | { | |
6367 | int i; | |
6368 | ||
6369 | for (i = 0; i < drv->num_if_indices; i++) | |
6370 | if (drv->if_indices[i] == ifidx) | |
6371 | return 1; | |
6372 | ||
6373 | return 0; | |
6374 | } | |
6375 | ||
6376 | ||
6377 | static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, | |
6378 | const char *bridge_ifname) | |
6379 | { | |
6380 | struct i802_bss *bss = priv; | |
6381 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6382 | char name[IFNAMSIZ + 1]; | |
6383 | ||
6384 | os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); | |
6385 | wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR | |
6386 | " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); | |
6387 | if (val) { | |
6388 | if (!if_nametoindex(name)) { | |
6389 | if (nl80211_create_iface(drv, name, | |
6390 | NL80211_IFTYPE_AP_VLAN, | |
6391 | NULL, 1) < 0) | |
6392 | return -1; | |
6393 | if (bridge_ifname && | |
c81eff1a BG |
6394 | linux_br_add_if(drv->global->ioctl_sock, |
6395 | bridge_ifname, name) < 0) | |
f07ead6a JM |
6396 | return -1; |
6397 | } | |
c81eff1a | 6398 | linux_set_iface_flags(drv->global->ioctl_sock, name, 1); |
f07ead6a JM |
6399 | return i802_set_sta_vlan(priv, addr, name, 0); |
6400 | } else { | |
6401 | i802_set_sta_vlan(priv, addr, bss->ifname, 0); | |
6402 | return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, | |
6403 | name); | |
6404 | } | |
6405 | } | |
6406 | ||
6407 | ||
6408 | static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) | |
6409 | { | |
6410 | struct wpa_driver_nl80211_data *drv = eloop_ctx; | |
6411 | struct sockaddr_ll lladdr; | |
6412 | unsigned char buf[3000]; | |
6413 | int len; | |
6414 | socklen_t fromlen = sizeof(lladdr); | |
6415 | ||
6416 | len = recvfrom(sock, buf, sizeof(buf), 0, | |
6417 | (struct sockaddr *)&lladdr, &fromlen); | |
6418 | if (len < 0) { | |
6419 | perror("recv"); | |
6420 | return; | |
6421 | } | |
6422 | ||
6423 | if (have_ifidx(drv, lladdr.sll_ifindex)) | |
6424 | drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); | |
6425 | } | |
6426 | ||
6427 | ||
94627f6c | 6428 | static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, |
e17a2477 | 6429 | struct i802_bss *bss, |
94627f6c JM |
6430 | const char *brname, const char *ifname) |
6431 | { | |
6432 | int ifindex; | |
6433 | char in_br[IFNAMSIZ]; | |
6434 | ||
e17a2477 | 6435 | os_strlcpy(bss->brname, brname, IFNAMSIZ); |
94627f6c JM |
6436 | ifindex = if_nametoindex(brname); |
6437 | if (ifindex == 0) { | |
6438 | /* | |
6439 | * Bridge was configured, but the bridge device does | |
6440 | * not exist. Try to add it now. | |
6441 | */ | |
c81eff1a | 6442 | if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { |
94627f6c JM |
6443 | wpa_printf(MSG_ERROR, "nl80211: Failed to add the " |
6444 | "bridge interface %s: %s", | |
6445 | brname, strerror(errno)); | |
6446 | return -1; | |
6447 | } | |
e17a2477 | 6448 | bss->added_bridge = 1; |
94627f6c JM |
6449 | add_ifidx(drv, if_nametoindex(brname)); |
6450 | } | |
6451 | ||
6452 | if (linux_br_get(in_br, ifname) == 0) { | |
6453 | if (os_strcmp(in_br, brname) == 0) | |
6454 | return 0; /* already in the bridge */ | |
6455 | ||
6456 | wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " | |
6457 | "bridge %s", ifname, in_br); | |
c81eff1a BG |
6458 | if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < |
6459 | 0) { | |
94627f6c JM |
6460 | wpa_printf(MSG_ERROR, "nl80211: Failed to " |
6461 | "remove interface %s from bridge " | |
6462 | "%s: %s", | |
6463 | ifname, brname, strerror(errno)); | |
6464 | return -1; | |
6465 | } | |
6466 | } | |
6467 | ||
6468 | wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", | |
6469 | ifname, brname); | |
c81eff1a | 6470 | if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { |
94627f6c JM |
6471 | wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " |
6472 | "into bridge %s: %s", | |
6473 | ifname, brname, strerror(errno)); | |
6474 | return -1; | |
6475 | } | |
e17a2477 | 6476 | bss->added_if_into_bridge = 1; |
94627f6c JM |
6477 | |
6478 | return 0; | |
6479 | } | |
6480 | ||
6481 | ||
92f475b4 JM |
6482 | static void *i802_init(struct hostapd_data *hapd, |
6483 | struct wpa_init_params *params) | |
c5121837 JM |
6484 | { |
6485 | struct wpa_driver_nl80211_data *drv; | |
a2e40bb6 | 6486 | struct i802_bss *bss; |
c5121837 | 6487 | size_t i; |
94627f6c JM |
6488 | char brname[IFNAMSIZ]; |
6489 | int ifindex, br_ifindex; | |
6490 | int br_added = 0; | |
c5121837 | 6491 | |
4b24282a JM |
6492 | bss = wpa_driver_nl80211_init(hapd, params->ifname, |
6493 | params->global_priv); | |
a2e40bb6 | 6494 | if (bss == NULL) |
c5121837 | 6495 | return NULL; |
c5121837 | 6496 | |
a2e40bb6 | 6497 | drv = bss->drv; |
0382097e | 6498 | drv->nlmode = NL80211_IFTYPE_AP; |
7635bfb0 JB |
6499 | drv->eapol_sock = -1; |
6500 | ||
94627f6c JM |
6501 | if (linux_br_get(brname, params->ifname) == 0) { |
6502 | wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", | |
6503 | params->ifname, brname); | |
6504 | br_ifindex = if_nametoindex(brname); | |
6505 | } else { | |
6506 | brname[0] = '\0'; | |
6507 | br_ifindex = 0; | |
6508 | } | |
6509 | ||
c5121837 JM |
6510 | drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); |
6511 | drv->if_indices = drv->default_if_indices; | |
92f475b4 | 6512 | for (i = 0; i < params->num_bridge; i++) { |
94627f6c JM |
6513 | if (params->bridge[i]) { |
6514 | ifindex = if_nametoindex(params->bridge[i]); | |
6515 | if (ifindex) | |
6516 | add_ifidx(drv, ifindex); | |
6517 | if (ifindex == br_ifindex) | |
6518 | br_added = 1; | |
6519 | } | |
c5121837 | 6520 | } |
94627f6c JM |
6521 | if (!br_added && br_ifindex && |
6522 | (params->num_bridge == 0 || !params->bridge[0])) | |
6523 | add_ifidx(drv, br_ifindex); | |
c5121837 | 6524 | |
ad1e68e6 JM |
6525 | /* start listening for EAPOL on the default AP interface */ |
6526 | add_ifidx(drv, drv->ifindex); | |
6527 | ||
c81eff1a | 6528 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) |
6980c191 | 6529 | goto failed; |
ad1e68e6 | 6530 | |
6980c191 | 6531 | if (params->bssid) { |
c81eff1a | 6532 | if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
2ac9688e | 6533 | params->bssid)) |
460456f8 JM |
6534 | goto failed; |
6535 | } | |
ad1e68e6 | 6536 | |
b1f625e0 | 6537 | if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { |
ad1e68e6 | 6538 | wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " |
a2e40bb6 | 6539 | "into AP mode", bss->ifname); |
bbaf0837 | 6540 | goto failed; |
ad1e68e6 JM |
6541 | } |
6542 | ||
94627f6c | 6543 | if (params->num_bridge && params->bridge[0] && |
e17a2477 | 6544 | i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) |
94627f6c JM |
6545 | goto failed; |
6546 | ||
c81eff1a | 6547 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) |
bbaf0837 | 6548 | goto failed; |
ad1e68e6 JM |
6549 | |
6550 | drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); | |
6551 | if (drv->eapol_sock < 0) { | |
6552 | perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); | |
bbaf0837 | 6553 | goto failed; |
ad1e68e6 JM |
6554 | } |
6555 | ||
6556 | if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) | |
6557 | { | |
6558 | printf("Could not register read socket for eapol\n"); | |
c5121837 | 6559 | goto failed; |
ad1e68e6 JM |
6560 | } |
6561 | ||
c81eff1a BG |
6562 | if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
6563 | params->own_addr)) | |
bbaf0837 | 6564 | goto failed; |
c5121837 | 6565 | |
a2e40bb6 | 6566 | return bss; |
c5121837 JM |
6567 | |
6568 | failed: | |
7635bfb0 | 6569 | wpa_driver_nl80211_deinit(bss); |
bbaf0837 JM |
6570 | return NULL; |
6571 | } | |
c5121837 | 6572 | |
c5121837 | 6573 | |
bbaf0837 JM |
6574 | static void i802_deinit(void *priv) |
6575 | { | |
6576 | wpa_driver_nl80211_deinit(priv); | |
c5121837 JM |
6577 | } |
6578 | ||
6579 | #endif /* HOSTAPD */ | |
6580 | ||
6581 | ||
22a7c9d7 JM |
6582 | static enum nl80211_iftype wpa_driver_nl80211_if_type( |
6583 | enum wpa_driver_if_type type) | |
6584 | { | |
6585 | switch (type) { | |
6586 | case WPA_IF_STATION: | |
9f51b113 | 6587 | return NL80211_IFTYPE_STATION; |
75bde05d JM |
6588 | case WPA_IF_P2P_CLIENT: |
6589 | case WPA_IF_P2P_GROUP: | |
9f51b113 | 6590 | return NL80211_IFTYPE_P2P_CLIENT; |
22a7c9d7 JM |
6591 | case WPA_IF_AP_VLAN: |
6592 | return NL80211_IFTYPE_AP_VLAN; | |
6593 | case WPA_IF_AP_BSS: | |
6594 | return NL80211_IFTYPE_AP; | |
9f51b113 JB |
6595 | case WPA_IF_P2P_GO: |
6596 | return NL80211_IFTYPE_P2P_GO; | |
22a7c9d7 JM |
6597 | } |
6598 | return -1; | |
6599 | } | |
6600 | ||
6601 | ||
482856c8 JM |
6602 | #ifdef CONFIG_P2P |
6603 | ||
f2ed8023 JM |
6604 | static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) |
6605 | { | |
6606 | struct wpa_driver_nl80211_data *drv; | |
6607 | dl_list_for_each(drv, &global->interfaces, | |
6608 | struct wpa_driver_nl80211_data, list) { | |
6609 | if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0) | |
6610 | return 1; | |
6611 | } | |
6612 | return 0; | |
6613 | } | |
6614 | ||
6615 | ||
6616 | static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, | |
6617 | u8 *new_addr) | |
6618 | { | |
6619 | unsigned int idx; | |
6620 | ||
6621 | if (!drv->global) | |
6622 | return -1; | |
6623 | ||
6624 | os_memcpy(new_addr, drv->addr, ETH_ALEN); | |
6625 | for (idx = 0; idx < 64; idx++) { | |
6626 | new_addr[0] = drv->addr[0] | 0x02; | |
6627 | new_addr[0] ^= idx << 2; | |
6628 | if (!nl80211_addr_in_use(drv->global, new_addr)) | |
6629 | break; | |
6630 | } | |
6631 | if (idx == 64) | |
6632 | return -1; | |
6633 | ||
6634 | wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " | |
6635 | MACSTR, MAC2STR(new_addr)); | |
6636 | ||
6637 | return 0; | |
6638 | } | |
6639 | ||
482856c8 JM |
6640 | #endif /* CONFIG_P2P */ |
6641 | ||
f2ed8023 | 6642 | |
7ab68865 | 6643 | static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, |
8043e725 | 6644 | const char *ifname, const u8 *addr, |
f3585c8a | 6645 | void *bss_ctx, void **drv_priv, |
e17a2477 JM |
6646 | char *force_ifname, u8 *if_addr, |
6647 | const char *bridge) | |
22a7c9d7 | 6648 | { |
a2e40bb6 FF |
6649 | struct i802_bss *bss = priv; |
6650 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
22a7c9d7 JM |
6651 | int ifidx; |
6652 | #ifdef HOSTAPD | |
a2e40bb6 | 6653 | struct i802_bss *new_bss = NULL; |
22a7c9d7 JM |
6654 | |
6655 | if (type == WPA_IF_AP_BSS) { | |
a2e40bb6 FF |
6656 | new_bss = os_zalloc(sizeof(*new_bss)); |
6657 | if (new_bss == NULL) | |
22a7c9d7 JM |
6658 | return -1; |
6659 | } | |
6660 | #endif /* HOSTAPD */ | |
6661 | ||
f3585c8a JM |
6662 | if (addr) |
6663 | os_memcpy(if_addr, addr, ETH_ALEN); | |
22a7c9d7 | 6664 | ifidx = nl80211_create_iface(drv, ifname, |
fbbfcbac FF |
6665 | wpa_driver_nl80211_if_type(type), addr, |
6666 | 0); | |
22a7c9d7 JM |
6667 | if (ifidx < 0) { |
6668 | #ifdef HOSTAPD | |
a2e40bb6 | 6669 | os_free(new_bss); |
22a7c9d7 JM |
6670 | #endif /* HOSTAPD */ |
6671 | return -1; | |
6672 | } | |
6673 | ||
f3585c8a | 6674 | if (!addr && |
c81eff1a BG |
6675 | linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
6676 | if_addr) < 0) { | |
c55f774d | 6677 | nl80211_remove_iface(drv, ifidx); |
f3585c8a | 6678 | return -1; |
c55f774d JM |
6679 | } |
6680 | ||
6681 | #ifdef CONFIG_P2P | |
6682 | if (!addr && | |
6683 | (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || | |
6684 | type == WPA_IF_P2P_GO)) { | |
6685 | /* Enforce unique P2P Interface Address */ | |
6686 | u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN]; | |
6687 | ||
c81eff1a BG |
6688 | if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
6689 | own_addr) < 0 || | |
6690 | linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, | |
6691 | new_addr) < 0) { | |
c55f774d JM |
6692 | nl80211_remove_iface(drv, ifidx); |
6693 | return -1; | |
6694 | } | |
6695 | if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) { | |
6696 | wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " | |
6697 | "for P2P group interface"); | |
f2ed8023 | 6698 | if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { |
c55f774d JM |
6699 | nl80211_remove_iface(drv, ifidx); |
6700 | return -1; | |
6701 | } | |
c81eff1a | 6702 | if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, |
c55f774d JM |
6703 | new_addr) < 0) { |
6704 | nl80211_remove_iface(drv, ifidx); | |
6705 | return -1; | |
6706 | } | |
c55f774d | 6707 | } |
f67eeb5c | 6708 | os_memcpy(if_addr, new_addr, ETH_ALEN); |
c55f774d JM |
6709 | } |
6710 | #endif /* CONFIG_P2P */ | |
f3585c8a | 6711 | |
22a7c9d7 | 6712 | #ifdef HOSTAPD |
e17a2477 JM |
6713 | if (bridge && |
6714 | i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { | |
6715 | wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " | |
6716 | "interface %s to a bridge %s", ifname, bridge); | |
6717 | nl80211_remove_iface(drv, ifidx); | |
6718 | os_free(new_bss); | |
6719 | return -1; | |
6720 | } | |
6721 | ||
22a7c9d7 | 6722 | if (type == WPA_IF_AP_BSS) { |
c81eff1a BG |
6723 | if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) |
6724 | { | |
34f2f814 | 6725 | nl80211_remove_iface(drv, ifidx); |
07179987 | 6726 | os_free(new_bss); |
22a7c9d7 JM |
6727 | return -1; |
6728 | } | |
a2e40bb6 FF |
6729 | os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); |
6730 | new_bss->ifindex = ifidx; | |
6731 | new_bss->drv = drv; | |
6732 | new_bss->next = drv->first_bss.next; | |
6733 | drv->first_bss.next = new_bss; | |
6734 | if (drv_priv) | |
6735 | *drv_priv = new_bss; | |
22a7c9d7 JM |
6736 | } |
6737 | #endif /* HOSTAPD */ | |
6738 | ||
ff6a158b JM |
6739 | if (drv->global) |
6740 | drv->global->if_add_ifindex = ifidx; | |
6741 | ||
22a7c9d7 JM |
6742 | return 0; |
6743 | } | |
6744 | ||
6745 | ||
6746 | static int wpa_driver_nl80211_if_remove(void *priv, | |
6747 | enum wpa_driver_if_type type, | |
6748 | const char *ifname) | |
6749 | { | |
a2e40bb6 FF |
6750 | struct i802_bss *bss = priv; |
6751 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
22a7c9d7 JM |
6752 | int ifindex = if_nametoindex(ifname); |
6753 | ||
e748062b JM |
6754 | wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", |
6755 | __func__, type, ifname, ifindex); | |
6756 | if (ifindex <= 0) | |
6757 | return -1; | |
e17a2477 JM |
6758 | |
6759 | #ifdef HOSTAPD | |
6760 | if (bss->added_if_into_bridge) { | |
c81eff1a BG |
6761 | if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, |
6762 | bss->ifname) < 0) | |
e17a2477 JM |
6763 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
6764 | "interface %s from bridge %s: %s", | |
6765 | bss->ifname, bss->brname, strerror(errno)); | |
6766 | } | |
6767 | if (bss->added_bridge) { | |
c81eff1a | 6768 | if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) |
e17a2477 JM |
6769 | wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
6770 | "bridge %s: %s", | |
6771 | bss->brname, strerror(errno)); | |
6772 | } | |
6773 | #endif /* HOSTAPD */ | |
6774 | ||
22a7c9d7 JM |
6775 | nl80211_remove_iface(drv, ifindex); |
6776 | ||
6777 | #ifdef HOSTAPD | |
a2e40bb6 FF |
6778 | if (type != WPA_IF_AP_BSS) |
6779 | return 0; | |
6780 | ||
6781 | if (bss != &drv->first_bss) { | |
8546ea19 | 6782 | struct i802_bss *tbss; |
a2e40bb6 | 6783 | |
8546ea19 JM |
6784 | for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { |
6785 | if (tbss->next == bss) { | |
6786 | tbss->next = bss->next; | |
6787 | os_free(bss); | |
6788 | bss = NULL; | |
6789 | break; | |
6790 | } | |
22a7c9d7 | 6791 | } |
8546ea19 JM |
6792 | if (bss) |
6793 | wpa_printf(MSG_INFO, "nl80211: %s - could not find " | |
6794 | "BSS %p in the list", __func__, bss); | |
22a7c9d7 JM |
6795 | } |
6796 | #endif /* HOSTAPD */ | |
6797 | ||
6798 | return 0; | |
6799 | } | |
6800 | ||
6801 | ||
55777702 JM |
6802 | static int cookie_handler(struct nl_msg *msg, void *arg) |
6803 | { | |
6804 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
6805 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
6806 | u64 *cookie = arg; | |
6807 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
6808 | genlmsg_attrlen(gnlh, 0), NULL); | |
6809 | if (tb[NL80211_ATTR_COOKIE]) | |
6810 | *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); | |
6811 | return NL_SKIP; | |
6812 | } | |
6813 | ||
6814 | ||
9884f9cc | 6815 | static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv, |
5dfca53f JB |
6816 | unsigned int freq, unsigned int wait, |
6817 | const u8 *buf, size_t buf_len, | |
b106173a | 6818 | u64 *cookie_out, int no_cck) |
9884f9cc JB |
6819 | { |
6820 | struct nl_msg *msg; | |
6821 | u64 cookie; | |
6822 | int ret = -1; | |
6823 | ||
6824 | msg = nlmsg_alloc(); | |
6825 | if (!msg) | |
6826 | return -1; | |
6827 | ||
9fb04070 | 6828 | nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); |
9884f9cc JB |
6829 | |
6830 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
6831 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
9db931ed JM |
6832 | if (wait) |
6833 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); | |
5dfca53f | 6834 | NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); |
b106173a JM |
6835 | if (no_cck) |
6836 | NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); | |
970fa12e | 6837 | |
9884f9cc JB |
6838 | NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); |
6839 | ||
6840 | cookie = 0; | |
6841 | ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); | |
6842 | msg = NULL; | |
6843 | if (ret) { | |
6844 | wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " | |
a05225c8 JM |
6845 | "(%s) (freq=%u wait=%u)", ret, strerror(-ret), |
6846 | freq, wait); | |
9884f9cc JB |
6847 | goto nla_put_failure; |
6848 | } | |
6849 | wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; " | |
6850 | "cookie 0x%llx", (long long unsigned int) cookie); | |
6851 | ||
6852 | if (cookie_out) | |
6853 | *cookie_out = cookie; | |
6854 | ||
6855 | nla_put_failure: | |
6856 | nlmsg_free(msg); | |
6857 | return ret; | |
6858 | } | |
6859 | ||
6860 | ||
58f6fbe0 | 6861 | static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq, |
190b9062 | 6862 | unsigned int wait_time, |
58f6fbe0 JM |
6863 | const u8 *dst, const u8 *src, |
6864 | const u8 *bssid, | |
b106173a JM |
6865 | const u8 *data, size_t data_len, |
6866 | int no_cck) | |
58f6fbe0 | 6867 | { |
a2e40bb6 FF |
6868 | struct i802_bss *bss = priv; |
6869 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
58f6fbe0 | 6870 | int ret = -1; |
58f6fbe0 JM |
6871 | u8 *buf; |
6872 | struct ieee80211_hdr *hdr; | |
58f6fbe0 | 6873 | |
5dfca53f | 6874 | wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " |
b106173a | 6875 | "wait=%d ms no_cck=%d)", drv->ifindex, wait_time, no_cck); |
58f6fbe0 JM |
6876 | |
6877 | buf = os_zalloc(24 + data_len); | |
6878 | if (buf == NULL) | |
6879 | return ret; | |
6880 | os_memcpy(buf + 24, data, data_len); | |
6881 | hdr = (struct ieee80211_hdr *) buf; | |
6882 | hdr->frame_control = | |
6883 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); | |
6884 | os_memcpy(hdr->addr1, dst, ETH_ALEN); | |
6885 | os_memcpy(hdr->addr2, src, ETH_ALEN); | |
6886 | os_memcpy(hdr->addr3, bssid, ETH_ALEN); | |
6887 | ||
b1f625e0 | 6888 | if (is_ap_interface(drv->nlmode)) |
58f6fbe0 | 6889 | ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len); |
9884f9cc | 6890 | else |
5dfca53f JB |
6891 | ret = nl80211_send_frame_cmd(drv, freq, wait_time, buf, |
6892 | 24 + data_len, | |
b106173a JM |
6893 | &drv->send_action_cookie, |
6894 | no_cck); | |
58f6fbe0 | 6895 | |
f8bf1421 | 6896 | os_free(buf); |
58f6fbe0 JM |
6897 | return ret; |
6898 | } | |
6899 | ||
6900 | ||
5dfca53f JB |
6901 | static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) |
6902 | { | |
6903 | struct i802_bss *bss = priv; | |
6904 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
6905 | struct nl_msg *msg; | |
6906 | int ret; | |
6907 | ||
6908 | msg = nlmsg_alloc(); | |
6909 | if (!msg) | |
6910 | return; | |
6911 | ||
9fb04070 | 6912 | nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); |
5dfca53f JB |
6913 | |
6914 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
6915 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); | |
6916 | ||
6917 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
6918 | msg = NULL; | |
6919 | if (ret) | |
6920 | wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " | |
6921 | "(%s)", ret, strerror(-ret)); | |
6922 | ||
6923 | nla_put_failure: | |
6924 | nlmsg_free(msg); | |
6925 | } | |
6926 | ||
6927 | ||
55777702 JM |
6928 | static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, |
6929 | unsigned int duration) | |
6930 | { | |
a2e40bb6 FF |
6931 | struct i802_bss *bss = priv; |
6932 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
55777702 JM |
6933 | struct nl_msg *msg; |
6934 | int ret; | |
6935 | u64 cookie; | |
6936 | ||
6937 | msg = nlmsg_alloc(); | |
6938 | if (!msg) | |
6939 | return -1; | |
6940 | ||
9fb04070 | 6941 | nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); |
55777702 JM |
6942 | |
6943 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
6944 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
6945 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
6946 | ||
6947 | cookie = 0; | |
6948 | ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); | |
6949 | if (ret == 0) { | |
6950 | wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " | |
6951 | "0x%llx for freq=%u MHz duration=%u", | |
6952 | (long long unsigned int) cookie, freq, duration); | |
6953 | drv->remain_on_chan_cookie = cookie; | |
531f0331 | 6954 | drv->pending_remain_on_chan = 1; |
55777702 JM |
6955 | return 0; |
6956 | } | |
6957 | wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " | |
15ed5535 JM |
6958 | "(freq=%d duration=%u): %d (%s)", |
6959 | freq, duration, ret, strerror(-ret)); | |
55777702 JM |
6960 | nla_put_failure: |
6961 | return -1; | |
6962 | } | |
6963 | ||
6964 | ||
6965 | static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) | |
6966 | { | |
a2e40bb6 FF |
6967 | struct i802_bss *bss = priv; |
6968 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
55777702 JM |
6969 | struct nl_msg *msg; |
6970 | int ret; | |
6971 | ||
6972 | if (!drv->pending_remain_on_chan) { | |
6973 | wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " | |
6974 | "to cancel"); | |
6975 | return -1; | |
6976 | } | |
6977 | ||
6978 | wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " | |
6979 | "0x%llx", | |
6980 | (long long unsigned int) drv->remain_on_chan_cookie); | |
6981 | ||
6982 | msg = nlmsg_alloc(); | |
6983 | if (!msg) | |
6984 | return -1; | |
6985 | ||
9fb04070 | 6986 | nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); |
55777702 JM |
6987 | |
6988 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
6989 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); | |
6990 | ||
6991 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
6992 | if (ret == 0) | |
6993 | return 0; | |
6994 | wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " | |
6995 | "%d (%s)", ret, strerror(-ret)); | |
6996 | nla_put_failure: | |
6997 | return -1; | |
6998 | } | |
6999 | ||
7000 | ||
504e905c JM |
7001 | static int wpa_driver_nl80211_probe_req_report(void *priv, int report) |
7002 | { | |
a2e40bb6 FF |
7003 | struct i802_bss *bss = priv; |
7004 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
504e905c | 7005 | |
5582a5d1 | 7006 | if (!report) { |
a92dfde8 | 7007 | if (drv->nl_preq.handle) { |
5582a5d1 | 7008 | eloop_unregister_read_sock( |
a92dfde8 JB |
7009 | nl_socket_get_fd(drv->nl_preq.handle)); |
7010 | nl_destroy_handles(&drv->nl_preq); | |
5582a5d1 JB |
7011 | } |
7012 | return 0; | |
7013 | } | |
7014 | ||
a92dfde8 | 7015 | if (drv->nl_preq.handle) { |
5582a5d1 JB |
7016 | wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " |
7017 | "already on!"); | |
7018 | return 0; | |
7019 | } | |
7020 | ||
2a7b66f5 | 7021 | if (nl_create_handles(&drv->nl_preq, drv->global->nl_cb, "preq")) |
5582a5d1 | 7022 | return -1; |
5582a5d1 | 7023 | |
a92dfde8 | 7024 | if (nl80211_register_frame(drv, drv->nl_preq.handle, |
5582a5d1 JB |
7025 | (WLAN_FC_TYPE_MGMT << 2) | |
7026 | (WLAN_FC_STYPE_PROBE_REQ << 4), | |
a92dfde8 JB |
7027 | NULL, 0) < 0) |
7028 | goto out_err; | |
5582a5d1 | 7029 | |
a92dfde8 | 7030 | eloop_register_read_sock(nl_socket_get_fd(drv->nl_preq.handle), |
5582a5d1 | 7031 | wpa_driver_nl80211_event_receive, drv, |
a92dfde8 | 7032 | drv->nl_preq.handle); |
5582a5d1 | 7033 | |
504e905c | 7034 | return 0; |
5582a5d1 | 7035 | |
a92dfde8 JB |
7036 | out_err: |
7037 | nl_destroy_handles(&drv->nl_preq); | |
5582a5d1 | 7038 | return -1; |
504e905c JM |
7039 | } |
7040 | ||
7041 | ||
4e5cb1a3 JM |
7042 | static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, |
7043 | int ifindex, int disabled) | |
7044 | { | |
7045 | struct nl_msg *msg; | |
7046 | struct nlattr *bands, *band; | |
7047 | int ret; | |
7048 | ||
7049 | msg = nlmsg_alloc(); | |
7050 | if (!msg) | |
7051 | return -1; | |
7052 | ||
9fb04070 | 7053 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); |
4e5cb1a3 JM |
7054 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
7055 | ||
7056 | bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); | |
7057 | if (!bands) | |
7058 | goto nla_put_failure; | |
7059 | ||
7060 | /* | |
7061 | * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything | |
7062 | * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS | |
7063 | * rates. All 5 GHz rates are left enabled. | |
7064 | */ | |
7065 | band = nla_nest_start(msg, NL80211_BAND_2GHZ); | |
7066 | if (!band) | |
7067 | goto nla_put_failure; | |
1dea5882 JM |
7068 | if (disabled) { |
7069 | NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, | |
7070 | "\x0c\x12\x18\x24\x30\x48\x60\x6c"); | |
7071 | } | |
4e5cb1a3 JM |
7072 | nla_nest_end(msg, band); |
7073 | ||
7074 | nla_nest_end(msg, bands); | |
7075 | ||
7076 | ret = send_and_recv_msgs(drv, msg, NULL, NULL); | |
7077 | msg = NULL; | |
7078 | if (ret) { | |
7079 | wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " | |
7080 | "(%s)", ret, strerror(-ret)); | |
7081 | } | |
7082 | ||
7083 | return ret; | |
7084 | ||
7085 | nla_put_failure: | |
7086 | nlmsg_free(msg); | |
7087 | return -1; | |
7088 | } | |
7089 | ||
7090 | ||
af473088 JM |
7091 | static int wpa_driver_nl80211_deinit_ap(void *priv) |
7092 | { | |
a2e40bb6 FF |
7093 | struct i802_bss *bss = priv; |
7094 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
b1f625e0 | 7095 | if (!is_ap_interface(drv->nlmode)) |
af473088 JM |
7096 | return -1; |
7097 | wpa_driver_nl80211_del_beacon(drv); | |
b1f625e0 | 7098 | return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); |
af473088 JM |
7099 | } |
7100 | ||
7101 | ||
207ef3fb JM |
7102 | static void wpa_driver_nl80211_resume(void *priv) |
7103 | { | |
a2e40bb6 FF |
7104 | struct i802_bss *bss = priv; |
7105 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
c81eff1a | 7106 | if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { |
207ef3fb JM |
7107 | wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on " |
7108 | "resume event"); | |
7109 | } | |
7110 | } | |
7111 | ||
7112 | ||
7b90c16a JM |
7113 | static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, |
7114 | const u8 *ies, size_t ies_len) | |
7115 | { | |
7116 | struct i802_bss *bss = priv; | |
7117 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7118 | int ret; | |
7119 | u8 *data, *pos; | |
7120 | size_t data_len; | |
7121 | u8 own_addr[ETH_ALEN]; | |
7122 | ||
c81eff1a BG |
7123 | if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
7124 | own_addr) < 0) | |
7b90c16a JM |
7125 | return -1; |
7126 | ||
7127 | if (action != 1) { | |
7128 | wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " | |
7129 | "action %d", action); | |
7130 | return -1; | |
7131 | } | |
7132 | ||
7133 | /* | |
7134 | * Action frame payload: | |
7135 | * Category[1] = 6 (Fast BSS Transition) | |
7136 | * Action[1] = 1 (Fast BSS Transition Request) | |
7137 | * STA Address | |
7138 | * Target AP Address | |
7139 | * FT IEs | |
7140 | */ | |
7141 | ||
73fc617d JM |
7142 | data_len = 2 + 2 * ETH_ALEN + ies_len; |
7143 | data = os_malloc(data_len); | |
7b90c16a JM |
7144 | if (data == NULL) |
7145 | return -1; | |
7146 | pos = data; | |
7147 | *pos++ = 0x06; /* FT Action category */ | |
7148 | *pos++ = action; | |
7149 | os_memcpy(pos, own_addr, ETH_ALEN); | |
7150 | pos += ETH_ALEN; | |
7151 | os_memcpy(pos, target_ap, ETH_ALEN); | |
7152 | pos += ETH_ALEN; | |
7153 | os_memcpy(pos, ies, ies_len); | |
7154 | ||
190b9062 JB |
7155 | ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, |
7156 | drv->bssid, own_addr, drv->bssid, | |
b106173a | 7157 | data, data_len, 0); |
7b90c16a JM |
7158 | os_free(data); |
7159 | ||
7160 | return ret; | |
7161 | } | |
7162 | ||
7163 | ||
b625473c JM |
7164 | static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) |
7165 | { | |
7166 | struct i802_bss *bss = priv; | |
7167 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7168 | struct nl_msg *msg, *cqm = NULL; | |
7169 | ||
7170 | wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " | |
7171 | "hysteresis=%d", threshold, hysteresis); | |
7172 | ||
7173 | msg = nlmsg_alloc(); | |
7174 | if (!msg) | |
7175 | return -1; | |
7176 | ||
9fb04070 | 7177 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); |
b625473c JM |
7178 | |
7179 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
7180 | ||
7181 | cqm = nlmsg_alloc(); | |
7182 | if (cqm == NULL) | |
7183 | return -1; | |
7184 | ||
7185 | NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold); | |
7186 | NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); | |
7187 | nla_put_nested(msg, NL80211_ATTR_CQM, cqm); | |
7188 | ||
7189 | if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) | |
7190 | return 0; | |
7191 | msg = NULL; | |
7192 | ||
7193 | nla_put_failure: | |
7194 | if (cqm) | |
7195 | nlmsg_free(cqm); | |
7196 | nlmsg_free(msg); | |
7197 | return -1; | |
7198 | } | |
7199 | ||
7200 | ||
1c5c7273 PS |
7201 | static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) |
7202 | { | |
7203 | struct i802_bss *bss = priv; | |
7204 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7205 | int res; | |
7206 | ||
7207 | os_memset(si, 0, sizeof(*si)); | |
7208 | res = nl80211_get_link_signal(drv, si); | |
7209 | if (res != 0) | |
7210 | return res; | |
7211 | ||
7212 | return nl80211_get_link_noise(drv, si); | |
7213 | } | |
7214 | ||
7215 | ||
b91ab76e JM |
7216 | static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, |
7217 | int encrypt) | |
7218 | { | |
7219 | struct i802_bss *bss = priv; | |
7220 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7221 | return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt); | |
7222 | } | |
7223 | ||
7224 | ||
c55f774d JM |
7225 | static int nl80211_set_param(void *priv, const char *param) |
7226 | { | |
c55f774d JM |
7227 | wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); |
7228 | if (param == NULL) | |
7229 | return 0; | |
7230 | ||
7231 | #ifdef CONFIG_P2P | |
7232 | if (os_strstr(param, "use_p2p_group_interface=1")) { | |
482856c8 JM |
7233 | struct i802_bss *bss = priv; |
7234 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7235 | ||
c55f774d JM |
7236 | wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " |
7237 | "interface"); | |
7238 | drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; | |
7239 | drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; | |
7240 | } | |
7241 | #endif /* CONFIG_P2P */ | |
7242 | ||
7243 | return 0; | |
7244 | } | |
7245 | ||
7246 | ||
f2ed8023 JM |
7247 | static void * nl80211_global_init(void) |
7248 | { | |
7249 | struct nl80211_global *global; | |
36d84860 BG |
7250 | struct netlink_config *cfg; |
7251 | ||
f2ed8023 JM |
7252 | global = os_zalloc(sizeof(*global)); |
7253 | if (global == NULL) | |
7254 | return NULL; | |
c81eff1a | 7255 | global->ioctl_sock = -1; |
f2ed8023 | 7256 | dl_list_init(&global->interfaces); |
ff6a158b | 7257 | global->if_add_ifindex = -1; |
36d84860 BG |
7258 | |
7259 | cfg = os_zalloc(sizeof(*cfg)); | |
7260 | if (cfg == NULL) | |
7261 | goto err; | |
7262 | ||
7263 | cfg->ctx = global; | |
7264 | cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; | |
7265 | cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; | |
7266 | global->netlink = netlink_init(cfg); | |
7267 | if (global->netlink == NULL) { | |
7268 | os_free(cfg); | |
7269 | goto err; | |
7270 | } | |
7271 | ||
2a7b66f5 BG |
7272 | if (wpa_driver_nl80211_init_nl_global(global) < 0) |
7273 | goto err; | |
7274 | ||
c81eff1a BG |
7275 | global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); |
7276 | if (global->ioctl_sock < 0) { | |
7277 | perror("socket(PF_INET,SOCK_DGRAM)"); | |
7278 | goto err; | |
7279 | } | |
7280 | ||
f2ed8023 | 7281 | return global; |
36d84860 BG |
7282 | |
7283 | err: | |
7284 | nl80211_global_deinit(global); | |
7285 | return NULL; | |
f2ed8023 JM |
7286 | } |
7287 | ||
7288 | ||
7289 | static void nl80211_global_deinit(void *priv) | |
7290 | { | |
7291 | struct nl80211_global *global = priv; | |
7292 | if (global == NULL) | |
7293 | return; | |
7294 | if (!dl_list_empty(&global->interfaces)) { | |
7295 | wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " | |
7296 | "nl80211_global_deinit", | |
7297 | dl_list_len(&global->interfaces)); | |
7298 | } | |
36d84860 BG |
7299 | |
7300 | if (global->netlink) | |
7301 | netlink_deinit(global->netlink); | |
7302 | ||
276e2d67 BG |
7303 | nl_destroy_handles(&global->nl); |
7304 | ||
2a7b66f5 BG |
7305 | if (global->nl_cb) |
7306 | nl_cb_put(global->nl_cb); | |
7307 | ||
c81eff1a BG |
7308 | if (global->ioctl_sock >= 0) |
7309 | close(global->ioctl_sock); | |
7310 | ||
f2ed8023 JM |
7311 | os_free(global); |
7312 | } | |
7313 | ||
7314 | ||
6859f1cb BG |
7315 | static const char * nl80211_get_radio_name(void *priv) |
7316 | { | |
7317 | struct i802_bss *bss = priv; | |
7318 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7319 | return drv->phyname; | |
7320 | } | |
7321 | ||
7322 | ||
a6efc65d JM |
7323 | static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, |
7324 | const u8 *pmkid) | |
7325 | { | |
7326 | struct nl_msg *msg; | |
7327 | ||
7328 | msg = nlmsg_alloc(); | |
7329 | if (!msg) | |
7330 | return -ENOMEM; | |
7331 | ||
9fb04070 | 7332 | nl80211_cmd(bss->drv, msg, 0, cmd); |
a6efc65d JM |
7333 | |
7334 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); | |
7335 | if (pmkid) | |
7336 | NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); | |
7337 | if (bssid) | |
7338 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
7339 | ||
7340 | return send_and_recv_msgs(bss->drv, msg, NULL, NULL); | |
7341 | nla_put_failure: | |
7342 | return -ENOBUFS; | |
7343 | } | |
7344 | ||
7345 | ||
7346 | static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) | |
7347 | { | |
7348 | struct i802_bss *bss = priv; | |
7349 | wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); | |
7350 | return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); | |
7351 | } | |
7352 | ||
7353 | ||
7354 | static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) | |
7355 | { | |
7356 | struct i802_bss *bss = priv; | |
7357 | wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, | |
7358 | MAC2STR(bssid)); | |
7359 | return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); | |
7360 | } | |
7361 | ||
7362 | ||
7363 | static int nl80211_flush_pmkid(void *priv) | |
7364 | { | |
7365 | struct i802_bss *bss = priv; | |
7366 | wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); | |
7367 | return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); | |
7368 | } | |
7369 | ||
7370 | ||
b14a210c JB |
7371 | static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, |
7372 | const u8 *replay_ctr) | |
7373 | { | |
7374 | struct i802_bss *bss = priv; | |
7375 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7376 | struct nlattr *replay_nested; | |
7377 | struct nl_msg *msg; | |
7378 | ||
7379 | msg = nlmsg_alloc(); | |
7380 | if (!msg) | |
7381 | return; | |
7382 | ||
9fb04070 | 7383 | nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); |
b14a210c JB |
7384 | |
7385 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); | |
7386 | ||
7387 | replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
7388 | if (!replay_nested) | |
7389 | goto nla_put_failure; | |
7390 | ||
7391 | NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); | |
7392 | NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); | |
7393 | NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, | |
7394 | replay_ctr); | |
7395 | ||
7396 | nla_nest_end(msg, replay_nested); | |
7397 | ||
7398 | send_and_recv_msgs(drv, msg, NULL, NULL); | |
7399 | return; | |
7400 | nla_put_failure: | |
7401 | nlmsg_free(msg); | |
7402 | } | |
7403 | ||
7404 | ||
bcf24348 JB |
7405 | static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, |
7406 | int qos) | |
7407 | { | |
7408 | struct i802_bss *bss = priv; | |
7409 | struct { | |
7410 | struct ieee80211_hdr hdr; | |
7411 | u16 qos_ctl; | |
7412 | } STRUCT_PACKED nulldata; | |
7413 | size_t size; | |
7414 | ||
7415 | /* Send data frame to poll STA and check whether this frame is ACKed */ | |
7416 | ||
7417 | os_memset(&nulldata, 0, sizeof(nulldata)); | |
7418 | ||
7419 | if (qos) { | |
7420 | nulldata.hdr.frame_control = | |
7421 | IEEE80211_FC(WLAN_FC_TYPE_DATA, | |
7422 | WLAN_FC_STYPE_QOS_NULL); | |
7423 | size = sizeof(nulldata); | |
7424 | } else { | |
7425 | nulldata.hdr.frame_control = | |
7426 | IEEE80211_FC(WLAN_FC_TYPE_DATA, | |
7427 | WLAN_FC_STYPE_NULLFUNC); | |
7428 | size = sizeof(struct ieee80211_hdr); | |
7429 | } | |
7430 | ||
7431 | nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); | |
7432 | os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); | |
7433 | os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); | |
7434 | os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); | |
7435 | ||
7436 | if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size) < 0) | |
7437 | wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " | |
7438 | "send poll frame"); | |
7439 | } | |
7440 | ||
7441 | ||
03ea1786 AN |
7442 | #ifdef CONFIG_TDLS |
7443 | ||
7444 | static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, | |
7445 | u8 dialog_token, u16 status_code, | |
7446 | const u8 *buf, size_t len) | |
7447 | { | |
7448 | struct i802_bss *bss = priv; | |
7449 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7450 | struct nl_msg *msg; | |
7451 | ||
7452 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) | |
7453 | return -EOPNOTSUPP; | |
7454 | ||
7455 | if (!dst) | |
7456 | return -EINVAL; | |
7457 | ||
7458 | msg = nlmsg_alloc(); | |
7459 | if (!msg) | |
7460 | return -ENOMEM; | |
7461 | ||
7462 | nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); | |
7463 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
7464 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
7465 | NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); | |
7466 | NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); | |
7467 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); | |
7468 | NLA_PUT(msg, NL80211_ATTR_IE, len, buf); | |
7469 | ||
7470 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
7471 | ||
7472 | nla_put_failure: | |
7473 | nlmsg_free(msg); | |
7474 | return -ENOBUFS; | |
7475 | } | |
7476 | ||
7477 | ||
7478 | static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) | |
7479 | { | |
7480 | struct i802_bss *bss = priv; | |
7481 | struct wpa_driver_nl80211_data *drv = bss->drv; | |
7482 | struct nl_msg *msg; | |
7483 | enum nl80211_tdls_operation nl80211_oper; | |
7484 | ||
7485 | if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) | |
7486 | return -EOPNOTSUPP; | |
7487 | ||
7488 | switch (oper) { | |
7489 | case TDLS_DISCOVERY_REQ: | |
7490 | nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; | |
7491 | break; | |
7492 | case TDLS_SETUP: | |
7493 | nl80211_oper = NL80211_TDLS_SETUP; | |
7494 | break; | |
7495 | case TDLS_TEARDOWN: | |
7496 | nl80211_oper = NL80211_TDLS_TEARDOWN; | |
7497 | break; | |
7498 | case TDLS_ENABLE_LINK: | |
7499 | nl80211_oper = NL80211_TDLS_ENABLE_LINK; | |
7500 | break; | |
7501 | case TDLS_DISABLE_LINK: | |
7502 | nl80211_oper = NL80211_TDLS_DISABLE_LINK; | |
7503 | break; | |
7504 | case TDLS_ENABLE: | |
7505 | return 0; | |
7506 | case TDLS_DISABLE: | |
7507 | return 0; | |
7508 | default: | |
7509 | return -EINVAL; | |
7510 | } | |
7511 | ||
7512 | msg = nlmsg_alloc(); | |
7513 | if (!msg) | |
7514 | return -ENOMEM; | |
7515 | ||
7516 | nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); | |
7517 | NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); | |
7518 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); | |
7519 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); | |
7520 | ||
7521 | return send_and_recv_msgs(drv, msg, NULL, NULL); | |
7522 | ||
7523 | nla_put_failure: | |
7524 | nlmsg_free(msg); | |
7525 | return -ENOBUFS; | |
7526 | } | |
7527 | ||
7528 | #endif /* CONFIG TDLS */ | |
7529 | ||
7530 | ||
3f5285e8 JM |
7531 | const struct wpa_driver_ops wpa_driver_nl80211_ops = { |
7532 | .name = "nl80211", | |
7533 | .desc = "Linux nl80211/cfg80211", | |
7534 | .get_bssid = wpa_driver_nl80211_get_bssid, | |
7535 | .get_ssid = wpa_driver_nl80211_get_ssid, | |
3f5285e8 | 7536 | .set_key = wpa_driver_nl80211_set_key, |
6a1063e0 | 7537 | .scan2 = wpa_driver_nl80211_scan, |
d21c63b9 LC |
7538 | .sched_scan = wpa_driver_nl80211_sched_scan, |
7539 | .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, | |
3f5285e8 JM |
7540 | .get_scan_results2 = wpa_driver_nl80211_get_scan_results, |
7541 | .deauthenticate = wpa_driver_nl80211_deauthenticate, | |
7542 | .disassociate = wpa_driver_nl80211_disassociate, | |
c2a04078 | 7543 | .authenticate = wpa_driver_nl80211_authenticate, |
3f5285e8 | 7544 | .associate = wpa_driver_nl80211_associate, |
f2ed8023 JM |
7545 | .global_init = nl80211_global_init, |
7546 | .global_deinit = nl80211_global_deinit, | |
7547 | .init2 = wpa_driver_nl80211_init, | |
3f5285e8 | 7548 | .deinit = wpa_driver_nl80211_deinit, |
3f5285e8 JM |
7549 | .get_capa = wpa_driver_nl80211_get_capa, |
7550 | .set_operstate = wpa_driver_nl80211_set_operstate, | |
01652550 | 7551 | .set_supp_port = wpa_driver_nl80211_set_supp_port, |
6d158490 | 7552 | .set_country = wpa_driver_nl80211_set_country, |
19c3b566 | 7553 | .set_ap = wpa_driver_nl80211_set_ap, |
22a7c9d7 JM |
7554 | .if_add = wpa_driver_nl80211_if_add, |
7555 | .if_remove = wpa_driver_nl80211_if_remove, | |
071f8ac4 | 7556 | .send_mlme = wpa_driver_nl80211_send_mlme, |
c3965310 | 7557 | .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, |
0f4e8b4f JM |
7558 | .sta_add = wpa_driver_nl80211_sta_add, |
7559 | .sta_remove = wpa_driver_nl80211_sta_remove, | |
db149ac9 | 7560 | .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, |
a8d6ffa4 | 7561 | .sta_set_flags = wpa_driver_nl80211_sta_set_flags, |
c5121837 JM |
7562 | #ifdef HOSTAPD |
7563 | .hapd_init = i802_init, | |
c5121837 | 7564 | .hapd_deinit = i802_deinit, |
f7b3920c JM |
7565 | .set_wds_sta = i802_set_wds_sta, |
7566 | #endif /* HOSTAPD */ | |
7567 | #if defined(HOSTAPD) || defined(CONFIG_AP) | |
c5121837 JM |
7568 | .get_seqnum = i802_get_seqnum, |
7569 | .flush = i802_flush, | |
7570 | .read_sta_data = i802_read_sta_data, | |
c5121837 JM |
7571 | .get_inact_sec = i802_get_inact_sec, |
7572 | .sta_clear_stats = i802_sta_clear_stats, | |
c5121837 JM |
7573 | .set_rts = i802_set_rts, |
7574 | .set_frag = i802_set_frag, | |
c5121837 | 7575 | .set_tx_queue_params = i802_set_tx_queue_params, |
c5121837 | 7576 | .set_sta_vlan = i802_set_sta_vlan, |
257da773 | 7577 | .set_rate_sets = i802_set_rate_sets, |
ee7ab173 JB |
7578 | .sta_deauth = i802_sta_deauth, |
7579 | .sta_disassoc = i802_sta_disassoc, | |
7580 | #endif /* HOSTAPD || CONFIG_AP */ | |
e3802622 | 7581 | .set_freq = i802_set_freq, |
58f6fbe0 | 7582 | .send_action = wpa_driver_nl80211_send_action, |
5dfca53f | 7583 | .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, |
55777702 JM |
7584 | .remain_on_channel = wpa_driver_nl80211_remain_on_channel, |
7585 | .cancel_remain_on_channel = | |
7586 | wpa_driver_nl80211_cancel_remain_on_channel, | |
504e905c | 7587 | .probe_req_report = wpa_driver_nl80211_probe_req_report, |
af473088 | 7588 | .deinit_ap = wpa_driver_nl80211_deinit_ap, |
207ef3fb | 7589 | .resume = wpa_driver_nl80211_resume, |
7b90c16a | 7590 | .send_ft_action = nl80211_send_ft_action, |
b625473c | 7591 | .signal_monitor = nl80211_signal_monitor, |
1c5c7273 | 7592 | .signal_poll = nl80211_signal_poll, |
b91ab76e | 7593 | .send_frame = nl80211_send_frame, |
c55f774d | 7594 | .set_param = nl80211_set_param, |
6859f1cb | 7595 | .get_radio_name = nl80211_get_radio_name, |
a6efc65d JM |
7596 | .add_pmkid = nl80211_add_pmkid, |
7597 | .remove_pmkid = nl80211_remove_pmkid, | |
7598 | .flush_pmkid = nl80211_flush_pmkid, | |
b14a210c | 7599 | .set_rekey_info = nl80211_set_rekey_info, |
bcf24348 | 7600 | .poll_client = nl80211_poll_client, |
03ea1786 AN |
7601 | #ifdef CONFIG_TDLS |
7602 | .send_tdls_mgmt = nl80211_send_tdls_mgmt, | |
7603 | .tdls_oper = nl80211_tdls_oper, | |
7604 | #endif /* CONFIG_TDLS */ | |
3f5285e8 | 7605 | }; |