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Set driver Probe Response template for AP mode offload
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
CommitLineData
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>
32ab4855 31#include <linux/errqueue.h>
7e45830a 32#include "nl80211_copy.h"
625f587b 33
3f5285e8 34#include "common.h"
1b648c7e 35#include "eloop.h"
f2ed8023 36#include "utils/list.h"
1b648c7e 37#include "common/ieee802_11_defs.h"
9b90955e 38#include "common/ieee802_11_common.h"
f10bfc9a 39#include "l2_packet/l2_packet.h"
e2d02c29 40#include "netlink.h"
34f2f814 41#include "linux_ioctl.h"
e2d02c29
JM		 42#include "radiotap.h"
43#include "radiotap_iter.h"
8401a6b0 44#include "rfkill.h"
1b648c7e 45#include "driver.h"
0915d02c 46
32ab4855
JB		 47#ifndef SO_WIFI_STATUS
48# if defined(__sparc__)
49# define SO_WIFI_STATUS 0x0025
50# elif defined(__parisc__)
51# define SO_WIFI_STATUS 0x4022
52# else
53# define SO_WIFI_STATUS 41
54# endif
55
56# define SCM_WIFI_STATUS SO_WIFI_STATUS
57#endif
58
59#ifndef SO_EE_ORIGIN_TXSTATUS
60#define SO_EE_ORIGIN_TXSTATUS 4
61#endif
62
63#ifndef PACKET_TX_TIMESTAMP
64#define PACKET_TX_TIMESTAMP 16
65#endif
66
216eede8
DS		 67#ifdef ANDROID
68#include "android_drv.h"
69#endif /* ANDROID */
c5121837
JM		 70#ifdef CONFIG_LIBNL20
71/* libnl 2.0 compatibility code */
2e8eac2d 72#define nl_handle nl_sock
a65a9aed
JB		 73#define nl80211_handle_alloc nl_socket_alloc_cb
74#define nl80211_handle_destroy nl_socket_free
75#else
76/*
77 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
78 * but when you free a socket again it will mess up its bitmap and
79 * and use the wrong number the next time it needs a socket ID.
80 * Therefore, we wrap the handle alloc/destroy and add our own pid
81 * accounting.
82 */
83static uint32_t port_bitmap[32] = { 0 };
84
85static struct nl_handle *nl80211_handle_alloc(void *cb)
86{
87 struct nl_handle *handle;
88 uint32_t pid = getpid() & 0x3FFFFF;
89 int i;
90
91 handle = nl_handle_alloc_cb(cb);
92
93 for (i = 0; i < 1024; i++) {
94 if (port_bitmap[i / 32] & (1 << (i % 32)))
95 continue;
96 port_bitmap[i / 32] |= 1 << (i % 32);
97 pid += i << 22;
98 break;
99 }
100
101 nl_socket_set_local_port(handle, pid);
102
103 return handle;
104}
105
106static void nl80211_handle_destroy(struct nl_handle *handle)
107{
108 uint32_t port = nl_socket_get_local_port(handle);
109
110 port >>= 22;
111 port_bitmap[port / 32] &= ~(1 << (port % 32));
112
113 nl_handle_destroy(handle);
114}
c5121837
JM		 115#endif /* CONFIG_LIBNL20 */
116
c5121837 117
481234cf 118static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
a92dfde8 119{
481234cf 120 struct nl_handle *handle;
a92dfde8 121
481234cf
JM		 122 handle = nl80211_handle_alloc(cb);
123 if (handle == NULL) {
a92dfde8
JB		 124 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
125 "callbacks (%s)", dbg);
481234cf 126 return NULL;
a92dfde8
JB		 127 }
128
481234cf 129 if (genl_connect(handle)) {
a92dfde8
JB		 130 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
131 "netlink (%s)", dbg);
481234cf
JM		 132 nl80211_handle_destroy(handle);
133 return NULL;
a92dfde8
JB		 134 }
135
481234cf 136 return handle;
a92dfde8
JB		 137}
138
139
481234cf 140static void nl_destroy_handles(struct nl_handle **handle)
a92dfde8 141{
481234cf 142 if (*handle == NULL)
a92dfde8 143 return;
481234cf
JM		 144 nl80211_handle_destroy(*handle);
145 *handle = NULL;
a92dfde8
JB		 146}
147
148
3f5285e8
JM		 149#ifndef IFF_LOWER_UP
150#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
151#endif
152#ifndef IFF_DORMANT
153#define IFF_DORMANT 0x20000 /* driver signals dormant */
154#endif
155
156#ifndef IF_OPER_DORMANT
157#define IF_OPER_DORMANT 5
158#endif
159#ifndef IF_OPER_UP
160#define IF_OPER_UP 6
161#endif
162
f2ed8023
JM		 163struct nl80211_global {
164 struct dl_list interfaces;
ff6a158b 165 int if_add_ifindex;
36d84860 166 struct netlink_data *netlink;
2a7b66f5 167 struct nl_cb *nl_cb;
481234cf 168 struct nl_handle *nl;
335d42b1 169 int nl80211_id;
c81eff1a 170 int ioctl_sock; /* socket for ioctl() use */
d6c9aab8 171
481234cf 172 struct nl_handle *nl_event;
f2ed8023
JM		 173};
174
e32ad281
JB		 175struct nl80211_wiphy_data {
176 struct dl_list list;
177 struct dl_list bsss;
178 struct dl_list drvs;
179
481234cf 180 struct nl_handle *nl_beacons;
e32ad281
JB		 181 struct nl_cb *nl_cb;
182
183 int wiphy_idx;
184};
185
36d84860 186static void nl80211_global_deinit(void *priv);
dac12351 187static void wpa_driver_nl80211_deinit(void *priv);
36d84860 188
c5121837 189struct i802_bss {
a2e40bb6 190 struct wpa_driver_nl80211_data *drv;
c5121837 191 struct i802_bss *next;
b4fd6fab 192 int ifindex;
a2e40bb6 193 char ifname[IFNAMSIZ + 1];
e17a2477 194 char brname[IFNAMSIZ];
c5121837 195 unsigned int beacon_set:1;
e17a2477
JM		 196 unsigned int added_if_into_bridge:1;
197 unsigned int added_bridge:1;
221a59c9 198
341eebee
JB		 199 u8 addr[ETH_ALEN];
200
e4fb2167
JB		 201 int freq;
202
481234cf 203 struct nl_handle *nl_preq, *nl_mgmt;
cc7a48d1 204 struct nl_cb *nl_cb;
e32ad281
JB		 205
206 struct nl80211_wiphy_data *wiphy_data;
207 struct dl_list wiphy_list;
c5121837 208};
3f5285e8
JM		 209
210struct wpa_driver_nl80211_data {
f2ed8023
JM		 211 struct nl80211_global *global;
212 struct dl_list list;
e32ad281 213 struct dl_list wiphy_list;
6859f1cb 214 char phyname[32];
3f5285e8 215 void *ctx;
3f5285e8 216 int ifindex;
7524cfb1 217 int if_removed;
a63063b4 218 int if_disabled;
7d9c3698 219 int ignore_if_down_event;
8401a6b0 220 struct rfkill_data *rfkill;
c2a04078
JM		 221 struct wpa_driver_capa capa;
222 int has_capability;
c2a04078 223
3f5285e8
JM		 224 int operstate;
225
3f5285e8
JM		 226 int scan_complete_events;
227
1afc986d 228 struct nl_cb *nl_cb;
1c873584 229
e6b8efeb 230 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 231 u8 bssid[ETH_ALEN];
232 int associated;
fd05d64e
JM		 233 u8 ssid[32];
234 size_t ssid_len;
b1f625e0
EP		 235 enum nl80211_iftype nlmode;
236 enum nl80211_iftype ap_scan_as_station;
4832ecd7 237 unsigned int assoc_freq;
d2440ba0 238
0915d02c
JM		 239 int monitor_sock;
240 int monitor_ifidx;
3fd1cefb 241 int monitor_refcount;
7da3abe7 242
b3af99d2 243 unsigned int disabled_11b_rates:1;
55777702 244 unsigned int pending_remain_on_chan:1;
dac12351 245 unsigned int in_interface_list:1;
61cbe2ff 246 unsigned int device_ap_sme:1;
39718852 247 unsigned int poll_command_supported:1;
32ab4855 248 unsigned int data_tx_status:1;
536fd62d
JM		 249 unsigned int scan_for_auth:1;
250 unsigned int retry_auth:1;
a11241fa 251 unsigned int use_monitor:1;
55777702
JM		 252
253 u64 remain_on_chan_cookie;
58f6fbe0 254 u64 send_action_cookie;
c5121837 255
5582a5d1
JB		 256 unsigned int last_mgmt_freq;
257
3812464c
JM		 258 struct wpa_driver_scan_filter *filter_ssids;
259 size_t num_filter_ssids;
260
a2e40bb6
FF		 261 struct i802_bss first_bss;
262
d12dab4c 263 int eapol_tx_sock;
f10bfc9a 264
c5121837 265#ifdef HOSTAPD
c5121837 266 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 267
268 int default_if_indices[16];
269 int *if_indices;
270 int num_if_indices;
271
c5121837
JM		 272 int last_freq;
273 int last_freq_ht;
c5121837 274#endif /* HOSTAPD */
536fd62d
JM		 275
276 /* From failed authentication command */
277 int auth_freq;
278 u8 auth_bssid_[ETH_ALEN];
279 u8 auth_ssid[32];
280 size_t auth_ssid_len;
281 int auth_alg;
282 u8 *auth_ie;
283 size_t auth_ie_len;
284 u8 auth_wep_key[4][16];
285 size_t auth_wep_key_len[4];
286 int auth_wep_tx_keyidx;
287 int auth_local_state_change;
288 int auth_p2p;
3f5285e8
JM		 289};
290
291
292static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
293 void *timeout_ctx);
b1f625e0
EP		 294static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
295 enum nl80211_iftype nlmode);
362f781e 296static int
7524cfb1 297wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 298static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 299 const u8 *addr, int cmd, u16 reason_code,
300 int local_state_change);
460456f8
JM		 301static void nl80211_remove_monitor_interface(
302 struct wpa_driver_nl80211_data *drv);
88df0ef7 303static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f 304 unsigned int freq, unsigned int wait,
b106173a 305 const u8 *buf, size_t buf_len, u64 *cookie,
88df0ef7 306 int no_cck, int no_ack, int offchanok);
5582a5d1 307static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
216eede8
DS		 308#ifdef ANDROID
309static int android_pno_start(struct i802_bss *bss,
310 struct wpa_driver_scan_params *params);
311static int android_pno_stop(struct i802_bss *bss);
312#endif /* ANDROID */
0915d02c 313
072ad14c 314#ifdef HOSTAPD
2135f224
JM		 315static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
316static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 317static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
fbbfcbac
FF		 318static int wpa_driver_nl80211_if_remove(void *priv,
319 enum wpa_driver_if_type type,
320 const char *ifname);
37eb8da9 321#else /* HOSTAPD */
bd2df892
JM		 322static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
323{
324}
325
326static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
327{
328}
329
330static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
37eb8da9
JM		 331{
332 return 0;
333}
072ad14c
JM		 334#endif /* HOSTAPD */
335
e3802622 336static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
4e5cb1a3
JM		 337static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
338 int ifindex, int disabled);
504e905c 339
21bdbe38 340static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
536fd62d
JM		 341static int wpa_driver_nl80211_authenticate_retry(
342 struct wpa_driver_nl80211_data *drv);
21bdbe38 343
3f5285e8 344
b1f625e0
EP		 345static int is_ap_interface(enum nl80211_iftype nlmode)
346{
347 return (nlmode == NL80211_IFTYPE_AP ||
348 nlmode == NL80211_IFTYPE_P2P_GO);
349}
350
351
352static int is_sta_interface(enum nl80211_iftype nlmode)
353{
354 return (nlmode == NL80211_IFTYPE_STATION ||
355 nlmode == NL80211_IFTYPE_P2P_CLIENT);
356}
357
358
b3af99d2
JM		 359static int is_p2p_interface(enum nl80211_iftype nlmode)
360{
361 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
362 nlmode == NL80211_IFTYPE_P2P_GO);
363}
364
365
f5a8d422
JM		 366struct nl80211_bss_info_arg {
367 struct wpa_driver_nl80211_data *drv;
368 struct wpa_scan_results *res;
369 unsigned int assoc_freq;
20f5a4c2 370 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 371};
372
373static int bss_info_handler(struct nl_msg *msg, void *arg);
374
375
6241fcb1
JM		 376/* nl80211 code */
377static int ack_handler(struct nl_msg *msg, void *arg)
378{
379 int *err = arg;
380 *err = 0;
381 return NL_STOP;
382}
383
384static int finish_handler(struct nl_msg *msg, void *arg)
385{
8e8df255
JM		 386 int *ret = arg;
387 *ret = 0;
6241fcb1
JM		 388 return NL_SKIP;
389}
390
391static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
392 void *arg)
393{
394 int *ret = arg;
395 *ret = err->error;
396 return NL_SKIP;
397}
398
5b7b85f6
JM		 399
400static int no_seq_check(struct nl_msg *msg, void *arg)
401{
402 return NL_OK;
403}
404
405
d6c9aab8 406static int send_and_recv(struct nl80211_global *global,
58f6fbe0
JM		 407 struct nl_handle *nl_handle, struct nl_msg *msg,
408 int (*valid_handler)(struct nl_msg *, void *),
409 void *valid_data)
6241fcb1
JM		 410{
411 struct nl_cb *cb;
412 int err = -ENOMEM;
413
d6c9aab8 414 cb = nl_cb_clone(global->nl_cb);
6241fcb1
JM		 415 if (!cb)
416 goto out;
417
58f6fbe0 418 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 419 if (err < 0)
420 goto out;
421
422 err = 1;
423
424 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 425 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 426 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
427
428 if (valid_handler)
429 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
430 valid_handler, valid_data);
431
432 while (err > 0)
58f6fbe0 433 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 434 out:
435 nl_cb_put(cb);
436 nlmsg_free(msg);
437 return err;
438}
439
440
d6c9aab8
JB		 441static int send_and_recv_msgs_global(struct nl80211_global *global,
442 struct nl_msg *msg,
443 int (*valid_handler)(struct nl_msg *, void *),
444 void *valid_data)
445{
481234cf 446 return send_and_recv(global, global->nl, msg, valid_handler,
d6c9aab8
JB		 447 valid_data);
448}
449
450
58f6fbe0
JM		 451static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
452 struct nl_msg *msg,
453 int (*valid_handler)(struct nl_msg *, void *),
454 void *valid_data)
455{
481234cf 456 return send_and_recv(drv->global, drv->global->nl, msg,
d6c9aab8 457 valid_handler, valid_data);
58f6fbe0
JM		 458}
459
460
97865538
JM		 461struct family_data {
462 const char *group;
463 int id;
464};
465
466
467static int family_handler(struct nl_msg *msg, void *arg)
468{
469 struct family_data *res = arg;
470 struct nlattr *tb[CTRL_ATTR_MAX + 1];
471 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
472 struct nlattr *mcgrp;
473 int i;
474
475 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
476 genlmsg_attrlen(gnlh, 0), NULL);
477 if (!tb[CTRL_ATTR_MCAST_GROUPS])
478 return NL_SKIP;
479
480 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
481 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
482 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
483 nla_len(mcgrp), NULL);
484 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
485 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
486 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
487 res->group,
488 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
489 continue;
490 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
491 break;
492 };
493
494 return NL_SKIP;
495}
496
497
d6c9aab8 498static int nl_get_multicast_id(struct nl80211_global *global,
97865538
JM		 499 const char *family, const char *group)
500{
501 struct nl_msg *msg;
502 int ret = -1;
503 struct family_data res = { group, -ENOENT };
504
505 msg = nlmsg_alloc();
506 if (!msg)
507 return -ENOMEM;
481234cf 508 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
97865538
JM		 509 0, 0, CTRL_CMD_GETFAMILY, 0);
510 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
511
d6c9aab8 512 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
97865538
JM		 513 msg = NULL;
514 if (ret == 0)
515 ret = res.id;
516
517nla_put_failure:
518 nlmsg_free(msg);
519 return ret;
520}
521
522
9fb04070
JM		 523static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
524 struct nl_msg *msg, int flags, uint8_t cmd)
525{
335d42b1 526 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
276e2d67 527 0, flags, cmd, 0);
9fb04070
JM		 528}
529
530
e32ad281
JB		 531struct wiphy_idx_data {
532 int wiphy_idx;
533};
534
535
536static int netdev_info_handler(struct nl_msg *msg, void *arg)
537{
538 struct nlattr *tb[NL80211_ATTR_MAX + 1];
539 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
540 struct wiphy_idx_data *info = arg;
541
542 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
543 genlmsg_attrlen(gnlh, 0), NULL);
544
545 if (tb[NL80211_ATTR_WIPHY])
546 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
547
548 return NL_SKIP;
549}
550
551
552static int nl80211_get_wiphy_index(struct i802_bss *bss)
553{
554 struct nl_msg *msg;
555 struct wiphy_idx_data data = {
556 .wiphy_idx = -1,
557 };
558
559 msg = nlmsg_alloc();
560 if (!msg)
561 return -1;
562
563 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
564
565 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
566
567 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
568 return data.wiphy_idx;
569 msg = NULL;
570nla_put_failure:
571 nlmsg_free(msg);
572 return -1;
573}
574
575
576static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
577 struct nl80211_wiphy_data *w)
578{
579 struct nl_msg *msg;
580 int ret = -1;
581
582 msg = nlmsg_alloc();
583 if (!msg)
584 return -1;
585
586 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
587
588 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
589
481234cf 590 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
e32ad281
JB		 591 msg = NULL;
592 if (ret) {
593 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
594 "failed: ret=%d (%s)",
595 ret, strerror(-ret));
596 goto nla_put_failure;
597 }
598 ret = 0;
599nla_put_failure:
600 nlmsg_free(msg);
601 return ret;
602}
603
604
605static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
606{
607 struct nl80211_wiphy_data *w = eloop_ctx;
608
609 wpa_printf(MSG_DEBUG, "nl80211: Beacon event message available");
610
611 nl_recvmsgs(handle, w->nl_cb);
612}
613
614
615static int process_beacon_event(struct nl_msg *msg, void *arg)
616{
617 struct nl80211_wiphy_data *w = arg;
618 struct wpa_driver_nl80211_data *drv;
619 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
620 struct nlattr *tb[NL80211_ATTR_MAX + 1];
621 union wpa_event_data event;
622
623 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
624 genlmsg_attrlen(gnlh, 0), NULL);
625
626 if (gnlh->cmd != NL80211_CMD_FRAME) {
627 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
628 gnlh->cmd);
629 return NL_SKIP;
630 }
631
632 if (!tb[NL80211_ATTR_FRAME])
633 return NL_SKIP;
634
635 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
636 wiphy_list) {
637 os_memset(&event, 0, sizeof(event));
638 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
639 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
640 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
641 }
642
643 return NL_SKIP;
644}
645
646
647static struct nl80211_wiphy_data *
648nl80211_get_wiphy_data_ap(struct i802_bss *bss)
649{
650 static DEFINE_DL_LIST(nl80211_wiphys);
651 struct nl80211_wiphy_data *w;
652 int wiphy_idx, found = 0;
653 struct i802_bss *tmp_bss;
654
655 if (bss->wiphy_data != NULL)
656 return bss->wiphy_data;
657
658 wiphy_idx = nl80211_get_wiphy_index(bss);
659
660 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
661 if (w->wiphy_idx == wiphy_idx)
662 goto add;
663 }
664
665 /* alloc new one */
666 w = os_zalloc(sizeof(*w));
667 if (w == NULL)
668 return NULL;
669 w->wiphy_idx = wiphy_idx;
670 dl_list_init(&w->bsss);
671 dl_list_init(&w->drvs);
672
673 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
674 if (!w->nl_cb) {
675 os_free(w);
676 return NULL;
677 }
678 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
679 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
680 w);
681
481234cf
JM		 682 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
683 "wiphy beacons");
684 if (w->nl_beacons == NULL) {
e32ad281
JB		 685 os_free(w);
686 return NULL;
687 }
688
689 if (nl80211_register_beacons(bss->drv, w)) {
690 nl_destroy_handles(&w->nl_beacons);
691 os_free(w);
692 return NULL;
693 }
694
481234cf
JM		 695 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons),
696 nl80211_recv_beacons, w, w->nl_beacons);
e32ad281
JB		 697
698 dl_list_add(&nl80211_wiphys, &w->list);
699
700add:
701 /* drv entry for this bss already there? */
702 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
703 if (tmp_bss->drv == bss->drv) {
704 found = 1;
705 break;
706 }
707 }
708 /* if not add it */
709 if (!found)
710 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
711
712 dl_list_add(&w->bsss, &bss->wiphy_list);
713 bss->wiphy_data = w;
714 return w;
715}
716
717
718static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
719{
720 struct nl80211_wiphy_data *w = bss->wiphy_data;
721 struct i802_bss *tmp_bss;
722 int found = 0;
723
724 if (w == NULL)
725 return;
726 bss->wiphy_data = NULL;
727 dl_list_del(&bss->wiphy_list);
728
729 /* still any for this drv present? */
730 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
731 if (tmp_bss->drv == bss->drv) {
732 found = 1;
733 break;
734 }
735 }
736 /* if not remove it */
737 if (!found)
738 dl_list_del(&bss->drv->wiphy_list);
739
740 if (!dl_list_empty(&w->bsss))
741 return;
742
481234cf 743 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons));
e32ad281
JB		 744
745 nl_cb_put(w->nl_cb);
746 nl_destroy_handles(&w->nl_beacons);
747 dl_list_del(&w->list);
748 os_free(w);
749}
750
751
3f5285e8
JM		 752static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
753{
a2e40bb6
FF		 754 struct i802_bss *bss = priv;
755 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 756 if (!drv->associated)
757 return -1;
758 os_memcpy(bssid, drv->bssid, ETH_ALEN);
759 return 0;
3f5285e8
JM		 760}
761
762
3f5285e8
JM		 763static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
764{
a2e40bb6
FF		 765 struct i802_bss *bss = priv;
766 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 767 if (!drv->associated)
768 return -1;
769 os_memcpy(ssid, drv->ssid, drv->ssid_len);
770 return drv->ssid_len;
3f5285e8
JM		 771}
772
773
7524cfb1 774static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 775 char *buf, size_t len, int del)
3f5285e8
JM		 776{
777 union wpa_event_data event;
778
779 os_memset(&event, 0, sizeof(event));
780 if (len > sizeof(event.interface_status.ifname))
781 len = sizeof(event.interface_status.ifname) - 1;
782 os_memcpy(event.interface_status.ifname, buf, len);
783 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
784 EVENT_INTERFACE_ADDED;
785
786 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
787 del ? "DEL" : "NEW",
788 event.interface_status.ifname,
789 del ? "removed" : "added");
790
a2e40bb6 791 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
7524cfb1
JM		 792 if (del)
793 drv->if_removed = 1;
794 else
795 drv->if_removed = 0;
796 }
797
08063178 798 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 799}
800
801
7524cfb1 802static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 803 u8 *buf, size_t len)
7524cfb1 804{
62d680c3 805 int attrlen, rta_len;
7524cfb1
JM		 806 struct rtattr *attr;
807
62d680c3
JM		 808 attrlen = len;
809 attr = (struct rtattr *) buf;
7524cfb1
JM		 810
811 rta_len = RTA_ALIGN(sizeof(struct rtattr));
812 while (RTA_OK(attr, attrlen)) {
813 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 814 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 815 == 0)
816 return 1;
817 else
818 break;
819 }
820 attr = RTA_NEXT(attr, attrlen);
821 }
822
823 return 0;
824}
825
826
827static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 828 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 829{
830 if (drv->ifindex == ifindex)
831 return 1;
832
62d680c3 833 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 834 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 835 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
836 "interface");
837 wpa_driver_nl80211_finish_drv_init(drv);
838 return 1;
839 }
840
841 return 0;
842}
843
844
36d84860
BG		 845static struct wpa_driver_nl80211_data *
846nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
847{
848 struct wpa_driver_nl80211_data *drv;
849 dl_list_for_each(drv, &global->interfaces,
850 struct wpa_driver_nl80211_data, list) {
851 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
852 have_ifidx(drv, idx))
853 return drv;
854 }
855 return NULL;
856}
857
858
62d680c3
JM		 859static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
860 struct ifinfomsg *ifi,
861 u8 *buf, size_t len)
3f5285e8 862{
36d84860
BG		 863 struct nl80211_global *global = ctx;
864 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 865 int attrlen, rta_len;
866 struct rtattr *attr;
97cfcf64 867 u32 brid = 0;
aef85ba2 868 char namebuf[IFNAMSIZ];
3f5285e8 869
36d84860
BG		 870 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
871 if (!drv) {
97cfcf64
B		 872 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
873 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 874 return;
875 }
876
877 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
878 "(%s%s%s%s)",
879 drv->operstate, ifi->ifi_flags,
880 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
881 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
882 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
883 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 884
885 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
59d24925
JM		 886 if (if_indextoname(ifi->ifi_index, namebuf) &&
887 linux_iface_up(drv->global->ioctl_sock,
888 drv->first_bss.ifname) > 0) {
889 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
890 "event since interface %s is up", namebuf);
891 return;
892 }
a63063b4 893 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 894 if (drv->ignore_if_down_event) {
895 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
896 "event generated by mode change");
897 drv->ignore_if_down_event = 0;
898 } else {
899 drv->if_disabled = 1;
900 wpa_supplicant_event(drv->ctx,
901 EVENT_INTERFACE_DISABLED, NULL);
902 }
a63063b4
JM		 903 }
904
905 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
aef85ba2
JM		 906 if (if_indextoname(ifi->ifi_index, namebuf) &&
907 linux_iface_up(drv->global->ioctl_sock,
908 drv->first_bss.ifname) == 0) {
909 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
910 "event since interface %s is down",
911 namebuf);
912 } else {
913 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
914 drv->if_disabled = 0;
915 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
916 NULL);
917 }
a63063b4
JM		 918 }
919
3f5285e8
JM		 920 /*
921 * Some drivers send the association event before the operup event--in
922 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
923 * fails. This will hit us when wpa_supplicant does not need to do
924 * IEEE 802.1X authentication
925 */
926 if (drv->operstate == 1 &&
927 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
928 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 929 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 930 -1, IF_OPER_UP);
3f5285e8 931
62d680c3
JM		 932 attrlen = len;
933 attr = (struct rtattr *) buf;
3f5285e8
JM		 934 rta_len = RTA_ALIGN(sizeof(struct rtattr));
935 while (RTA_OK(attr, attrlen)) {
d8816397 936 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 937 wpa_driver_nl80211_event_link(
08063178 938 drv,
7524cfb1
JM		 939 ((char *) attr) + rta_len,
940 attr->rta_len - rta_len, 0);
97cfcf64
B		 941 } else if (attr->rta_type == IFLA_MASTER)
942 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 943 attr = RTA_NEXT(attr, attrlen);
944 }
97cfcf64
B		 945
946 if (ifi->ifi_family == AF_BRIDGE && brid) {
947 /* device has been added to bridge */
97cfcf64
B		 948 if_indextoname(brid, namebuf);
949 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
950 brid, namebuf);
951 add_ifidx(drv, brid);
952 }
3f5285e8
JM		 953}
954
955
62d680c3
JM		 956static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
957 struct ifinfomsg *ifi,
958 u8 *buf, size_t len)
3f5285e8 959{
36d84860
BG		 960 struct nl80211_global *global = ctx;
961 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 962 int attrlen, rta_len;
963 struct rtattr *attr;
97cfcf64 964 u32 brid = 0;
3f5285e8 965
36d84860
BG		 966 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
967 if (!drv) {
968 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
969 "foreign ifindex %d", ifi->ifi_index);
970 return;
971 }
972
62d680c3
JM		 973 attrlen = len;
974 attr = (struct rtattr *) buf;
3f5285e8
JM		 975
976 rta_len = RTA_ALIGN(sizeof(struct rtattr));
977 while (RTA_OK(attr, attrlen)) {
978 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 979 wpa_driver_nl80211_event_link(
08063178 980 drv,
7524cfb1
JM		 981 ((char *) attr) + rta_len,
982 attr->rta_len - rta_len, 1);
97cfcf64
B		 983 } else if (attr->rta_type == IFLA_MASTER)
984 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 985 attr = RTA_NEXT(attr, attrlen);
986 }
97cfcf64
B		 987
988 if (ifi->ifi_family == AF_BRIDGE && brid) {
989 /* device has been removed from bridge */
990 char namebuf[IFNAMSIZ];
991 if_indextoname(brid, namebuf);
992 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
993 "%s", brid, namebuf);
994 del_ifidx(drv, brid);
995 }
3f5285e8
JM		 996}
997
998
c2a04078
JM		 999static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1000 const u8 *frame, size_t len)
1001{
1002 const struct ieee80211_mgmt *mgmt;
1003 union wpa_event_data event;
1004
1005 mgmt = (const struct ieee80211_mgmt *) frame;
1006 if (len < 24 + sizeof(mgmt->u.auth)) {
1007 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1008 "frame");
1009 return;
1010 }
1011
e6b8efeb 1012 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 1013 os_memset(&event, 0, sizeof(event));
1014 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1015 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
1016 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1017 if (len > 24 + sizeof(mgmt->u.auth)) {
1018 event.auth.ies = mgmt->u.auth.variable;
1019 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1020 }
1021
1022 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1023}
1024
1025
f5a8d422
JM		 1026static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1027{
1028 struct nl_msg *msg;
1029 int ret;
1030 struct nl80211_bss_info_arg arg;
1031
1032 os_memset(&arg, 0, sizeof(arg));
1033 msg = nlmsg_alloc();
1034 if (!msg)
1035 goto nla_put_failure;
1036
9fb04070 1037 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 1038 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1039
1040 arg.drv = drv;
1041 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1042 msg = NULL;
1043 if (ret == 0) {
1044 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1045 "associated BSS from scan results: %u MHz",
1046 arg.assoc_freq);
1047 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
1048 }
1049 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1050 "(%s)", ret, strerror(-ret));
1051nla_put_failure:
1052 nlmsg_free(msg);
1053 return drv->assoc_freq;
1054}
1055
1056
c2a04078
JM		 1057static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1058 const u8 *frame, size_t len)
1059{
1060 const struct ieee80211_mgmt *mgmt;
1061 union wpa_event_data event;
1062 u16 status;
1063
1064 mgmt = (const struct ieee80211_mgmt *) frame;
1065 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1066 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1067 "frame");
1068 return;
1069 }
1070
1071 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1072 if (status != WLAN_STATUS_SUCCESS) {
efa46078 1073 os_memset(&event, 0, sizeof(event));
59ddf221 1074 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 1075 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1076 event.assoc_reject.resp_ies =
1077 (u8 *) mgmt->u.assoc_resp.variable;
1078 event.assoc_reject.resp_ies_len =
1079 len - 24 - sizeof(mgmt->u.assoc_resp);
1080 }
1081 event.assoc_reject.status_code = status;
1082
1083 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 1084 return;
1085 }
1086
1087 drv->associated = 1;
1088 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1089
1090 os_memset(&event, 0, sizeof(event));
1091 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1092 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1093 event.assoc_info.resp_ies_len =
efa46078 1094 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 1095 }
1096
4832ecd7
JM		 1097 event.assoc_info.freq = drv->assoc_freq;
1098
c2a04078
JM		 1099 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1100}
1101
c1bb3e0a 1102
da72a1c1
ZY		 1103static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1104 enum nl80211_commands cmd, struct nlattr *status,
1105 struct nlattr *addr, struct nlattr *req_ie,
1106 struct nlattr *resp_ie)
1107{
1108 union wpa_event_data event;
1109
7da2c527
JM		 1110 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1111 /*
1112 * Avoid reporting two association events that would confuse
1113 * the core code.
1114 */
1115 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1116 "when using userspace SME", cmd);
1117 return;
1118 }
1119
da72a1c1
ZY		 1120 os_memset(&event, 0, sizeof(event));
1121 if (cmd == NL80211_CMD_CONNECT &&
1122 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 1123 if (addr)
1124 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 1125 if (resp_ie) {
1126 event.assoc_reject.resp_ies = nla_data(resp_ie);
1127 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1128 }
1129 event.assoc_reject.status_code = nla_get_u16(status);
1130 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1131 return;
1132 }
1133
1134 drv->associated = 1;
1135 if (addr)
1136 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1137
1138 if (req_ie) {
1139 event.assoc_info.req_ies = nla_data(req_ie);
1140 event.assoc_info.req_ies_len = nla_len(req_ie);
1141 }
1142 if (resp_ie) {
1143 event.assoc_info.resp_ies = nla_data(resp_ie);
1144 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1145 }
1146
f5a8d422
JM		 1147 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1148
da72a1c1
ZY		 1149 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1150}
c2a04078 1151
c1bb3e0a 1152
20f5a4c2
JM		 1153static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
1154 struct nlattr *reason, struct nlattr *addr)
1155{
1156 union wpa_event_data data;
1157
1158 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1159 /*
1160 * Avoid reporting two disassociation events that could
1161 * confuse the core code.
1162 */
1163 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1164 "event when using userspace SME");
1165 return;
1166 }
1167
1168 drv->associated = 0;
1169 os_memset(&data, 0, sizeof(data));
1170 if (reason)
1171 data.disassoc_info.reason_code = nla_get_u16(reason);
1172 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
1173}
1174
1175
da1fb17c
JM		 1176static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1177 enum nl80211_commands cmd, struct nlattr *addr)
1178{
1179 union wpa_event_data event;
1180 enum wpa_event_type ev;
1181
1182 if (nla_len(addr) != ETH_ALEN)
1183 return;
1184
1185 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1186 cmd, MAC2STR((u8 *) nla_data(addr)));
1187
1188 if (cmd == NL80211_CMD_AUTHENTICATE)
1189 ev = EVENT_AUTH_TIMED_OUT;
1190 else if (cmd == NL80211_CMD_ASSOCIATE)
1191 ev = EVENT_ASSOC_TIMED_OUT;
1192 else
1193 return;
1194
1195 os_memset(&event, 0, sizeof(event));
1196 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1197 wpa_supplicant_event(drv->ctx, ev, &event);
1198}
1199
1200
5582a5d1
JB		 1201static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
1202 struct nlattr *freq, const u8 *frame, size_t len)
58f6fbe0
JM		 1203{
1204 const struct ieee80211_mgmt *mgmt;
1205 union wpa_event_data event;
1206 u16 fc, stype;
1207
1208 mgmt = (const struct ieee80211_mgmt *) frame;
1209 if (len < 24) {
1210 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1211 return;
1212 }
1213
1214 fc = le_to_host16(mgmt->frame_control);
1215 stype = WLAN_FC_GET_STYPE(fc);
1216
1217 os_memset(&event, 0, sizeof(event));
5582a5d1 1218 if (freq) {
58f6fbe0 1219 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 1220 drv->last_mgmt_freq = event.rx_action.freq;
1221 }
1222 if (stype == WLAN_FC_STYPE_ACTION) {
1223 event.rx_action.da = mgmt->da;
1224 event.rx_action.sa = mgmt->sa;
1225 event.rx_action.bssid = mgmt->bssid;
1226 event.rx_action.category = mgmt->u.action.category;
1227 event.rx_action.data = &mgmt->u.action.category + 1;
1228 event.rx_action.len = frame + len - event.rx_action.data;
1229 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1230 } else {
1231 event.rx_mgmt.frame = frame;
1232 event.rx_mgmt.frame_len = len;
1233 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1234 }
58f6fbe0
JM		 1235}
1236
1237
a11241fa
JB		 1238static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1239 struct nlattr *cookie, const u8 *frame,
1240 size_t len, struct nlattr *ack)
58f6fbe0
JM		 1241{
1242 union wpa_event_data event;
1243 const struct ieee80211_hdr *hdr;
1244 u16 fc;
58f6fbe0 1245
a11241fa
JB		 1246 if (!is_ap_interface(drv->nlmode)) {
1247 u64 cookie_val;
58f6fbe0 1248
a11241fa
JB		 1249 if (!cookie)
1250 return;
1251
1252 cookie_val = nla_get_u64(cookie);
1253 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1254 " cookie=0%llx%s (ack=%d)",
1255 (long long unsigned int) cookie_val,
1256 cookie_val == drv->send_action_cookie ?
1257 " (match)" : " (unknown)", ack != NULL);
1258 if (cookie_val != drv->send_action_cookie)
1259 return;
1260 }
58f6fbe0
JM		 1261
1262 hdr = (const struct ieee80211_hdr *) frame;
1263 fc = le_to_host16(hdr->frame_control);
1264
1265 os_memset(&event, 0, sizeof(event));
1266 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1267 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1268 event.tx_status.dst = hdr->addr1;
1269 event.tx_status.data = frame;
1270 event.tx_status.data_len = len;
1271 event.tx_status.ack = ack != NULL;
1272 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1273}
1274
1275
0544b242
JM		 1276static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1277 enum wpa_event_type type,
1278 const u8 *frame, size_t len)
1279{
1280 const struct ieee80211_mgmt *mgmt;
1281 union wpa_event_data event;
1282 const u8 *bssid = NULL;
1283 u16 reason_code = 0;
1284
cb30b297
PS		 1285 mgmt = (const struct ieee80211_mgmt *) frame;
1286 if (len >= 24) {
1287 bssid = mgmt->bssid;
1288
1289 if (drv->associated != 0 &&
1290 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1291 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1292 /*
1293 * We have presumably received this deauth as a
1294 * response to a clear_state_mismatch() outgoing
1295 * deauth. Don't let it take us offline!
1296 */
1297 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1298 "from Unknown BSSID " MACSTR " -- ignoring",
1299 MAC2STR(bssid));
1300 return;
1301 }
1302 }
1303
0544b242
JM		 1304 drv->associated = 0;
1305 os_memset(&event, 0, sizeof(event));
1306
0544b242
JM		 1307 /* Note: Same offset for Reason Code in both frame subtypes */
1308 if (len >= 24 + sizeof(mgmt->u.deauth))
1309 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1310
1311 if (type == EVENT_DISASSOC) {
1312 event.disassoc_info.addr = bssid;
1313 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1314 if (frame + len > mgmt->u.disassoc.variable) {
1315 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1316 event.disassoc_info.ie_len = frame + len -
1317 mgmt->u.disassoc.variable;
1318 }
0544b242
JM		 1319 } else {
1320 event.deauth_info.addr = bssid;
1321 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1322 if (frame + len > mgmt->u.deauth.variable) {
1323 event.deauth_info.ie = mgmt->u.deauth.variable;
1324 event.deauth_info.ie_len = frame + len -
1325 mgmt->u.deauth.variable;
1326 }
0544b242
JM		 1327 }
1328
1329 wpa_supplicant_event(drv->ctx, type, &event);
1330}
1331
1332
7d878ca7
JM		 1333static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1334 enum wpa_event_type type,
1335 const u8 *frame, size_t len)
1336{
1337 const struct ieee80211_mgmt *mgmt;
1338 union wpa_event_data event;
1339 u16 reason_code = 0;
1340
1341 if (len < 24)
1342 return;
1343
1344 mgmt = (const struct ieee80211_mgmt *) frame;
1345
1346 os_memset(&event, 0, sizeof(event));
1347 /* Note: Same offset for Reason Code in both frame subtypes */
1348 if (len >= 24 + sizeof(mgmt->u.deauth))
1349 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1350
1351 if (type == EVENT_UNPROT_DISASSOC) {
1352 event.unprot_disassoc.sa = mgmt->sa;
1353 event.unprot_disassoc.da = mgmt->da;
1354 event.unprot_disassoc.reason_code = reason_code;
1355 } else {
1356 event.unprot_deauth.sa = mgmt->sa;
1357 event.unprot_deauth.da = mgmt->da;
1358 event.unprot_deauth.reason_code = reason_code;
1359 }
1360
1361 wpa_supplicant_event(drv->ctx, type, &event);
1362}
1363
1364
c2a04078 1365static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 1366 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1367 struct nlattr *addr, struct nlattr *timed_out,
1368 struct nlattr *freq, struct nlattr *ack,
1369 struct nlattr *cookie)
c2a04078 1370{
da1fb17c
JM		 1371 if (timed_out && addr) {
1372 mlme_timeout_event(drv, cmd, addr);
1373 return;
1374 }
1375
c2a04078
JM		 1376 if (frame == NULL) {
1377 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1378 "data", cmd);
1379 return;
1380 }
1381
1382 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1383 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1384 nla_data(frame), nla_len(frame));
1385
1386 switch (cmd) {
1387 case NL80211_CMD_AUTHENTICATE:
1388 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1389 break;
1390 case NL80211_CMD_ASSOCIATE:
1391 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1392 break;
1393 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1394 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1395 nla_data(frame), nla_len(frame));
c2a04078
JM		 1396 break;
1397 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1398 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1399 nla_data(frame), nla_len(frame));
c2a04078 1400 break;
bd94971e 1401 case NL80211_CMD_FRAME:
5582a5d1 1402 mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
58f6fbe0 1403 break;
bd94971e 1404 case NL80211_CMD_FRAME_TX_STATUS:
a11241fa
JB		 1405 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1406 nla_len(frame), ack);
58f6fbe0 1407 break;
7d878ca7
JM		 1408 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1409 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1410 nla_data(frame), nla_len(frame));
1411 break;
1412 case NL80211_CMD_UNPROT_DISASSOCIATE:
1413 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1414 nla_data(frame), nla_len(frame));
1415 break;
c2a04078
JM		 1416 default:
1417 break;
1418 }
1419}
1420
1421
35583f3f
JM		 1422static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1423 struct nlattr *tb[])
1424{
1425 union wpa_event_data data;
1426
1427 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1428 os_memset(&data, 0, sizeof(data));
1429 if (tb[NL80211_ATTR_MAC]) {
1430 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1431 nla_data(tb[NL80211_ATTR_MAC]),
1432 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1433 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1434 }
1435 if (tb[NL80211_ATTR_KEY_SEQ]) {
1436 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1437 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1438 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1439 }
1440 if (tb[NL80211_ATTR_KEY_TYPE]) {
1441 enum nl80211_key_type key_type =
1442 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1443 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1444 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1445 data.michael_mic_failure.unicast = 1;
1446 } else
1447 data.michael_mic_failure.unicast = 1;
1448
1449 if (tb[NL80211_ATTR_KEY_IDX]) {
1450 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1451 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1452 }
1453
1454 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1455}
1456
1457
5cc4d64b
JM		 1458static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1459 struct nlattr *tb[])
1460{
1461 if (tb[NL80211_ATTR_MAC] == NULL) {
1462 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1463 "event");
1464 return;
1465 }
1466 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1467 drv->associated = 1;
1468 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1469 MAC2STR(drv->bssid));
1470
1471 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1472}
1473
1474
55777702
JM		 1475static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1476 int cancel_event, struct nlattr *tb[])
1477{
1478 unsigned int freq, chan_type, duration;
1479 union wpa_event_data data;
1480 u64 cookie;
1481
1482 if (tb[NL80211_ATTR_WIPHY_FREQ])
1483 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1484 else
1485 freq = 0;
1486
1487 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1488 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1489 else
1490 chan_type = 0;
1491
1492 if (tb[NL80211_ATTR_DURATION])
1493 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1494 else
1495 duration = 0;
1496
1497 if (tb[NL80211_ATTR_COOKIE])
1498 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1499 else
1500 cookie = 0;
1501
1502 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1503 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1504 cancel_event, freq, chan_type, duration,
1505 (long long unsigned int) cookie,
1506 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1507
1508 if (cookie != drv->remain_on_chan_cookie)
1509 return; /* not for us */
1510
531f0331
JB		 1511 if (cancel_event)
1512 drv->pending_remain_on_chan = 0;
55777702
JM		 1513
1514 os_memset(&data, 0, sizeof(data));
1515 data.remain_on_channel.freq = freq;
1516 data.remain_on_channel.duration = duration;
1517 wpa_supplicant_event(drv->ctx, cancel_event ?
1518 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1519 EVENT_REMAIN_ON_CHANNEL, &data);
1520}
1521
1522
8d923a4a
JM		 1523static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1524 struct nlattr *tb[])
1525{
1526 union wpa_event_data event;
1527 struct nlattr *nl;
1528 int rem;
1529 struct scan_info *info;
1530#define MAX_REPORT_FREQS 50
1531 int freqs[MAX_REPORT_FREQS];
1532 int num_freqs = 0;
1533
536fd62d
JM		 1534 if (drv->scan_for_auth) {
1535 drv->scan_for_auth = 0;
1536 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1537 "cfg80211 BSS entry");
1538 wpa_driver_nl80211_authenticate_retry(drv);
1539 return;
1540 }
1541
8d923a4a
JM		 1542 os_memset(&event, 0, sizeof(event));
1543 info = &event.scan_info;
1544 info->aborted = aborted;
1545
1546 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1547 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1548 struct wpa_driver_scan_ssid *s =
1549 &info->ssids[info->num_ssids];
1550 s->ssid = nla_data(nl);
1551 s->ssid_len = nla_len(nl);
1552 info->num_ssids++;
1553 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1554 break;
1555 }
1556 }
1557 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1558 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1559 {
1560 freqs[num_freqs] = nla_get_u32(nl);
1561 num_freqs++;
1562 if (num_freqs == MAX_REPORT_FREQS - 1)
1563 break;
1564 }
1565 info->freqs = freqs;
1566 info->num_freqs = num_freqs;
1567 }
1568 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1569}
1570
1571
60a972a6
JM		 1572static int get_link_signal(struct nl_msg *msg, void *arg)
1573{
1574 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1575 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1576 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1577 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1578 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1579 };
7ee35bf3
PS		 1580 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1581 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1582 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1583 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1584 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1585 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1586 };
1c5c7273 1587 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1588
1589 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1590 genlmsg_attrlen(gnlh, 0), NULL);
1591 if (!tb[NL80211_ATTR_STA_INFO] ||
1592 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1593 tb[NL80211_ATTR_STA_INFO], policy))
1594 return NL_SKIP;
1595 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1596 return NL_SKIP;
1597
7ee35bf3
PS		 1598 sig_change->current_signal =
1599 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1600
1601 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1602 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1603 sinfo[NL80211_STA_INFO_TX_BITRATE],
1604 rate_policy)) {
1605 sig_change->current_txrate = 0;
1606 } else {
1607 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1608 sig_change->current_txrate =
1609 nla_get_u16(rinfo[
1610 NL80211_RATE_INFO_BITRATE]) * 100;
1611 }
1612 }
1613 }
1614
60a972a6
JM		 1615 return NL_SKIP;
1616}
1617
1618
1619static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1620 struct wpa_signal_info *sig)
60a972a6
JM		 1621{
1622 struct nl_msg *msg;
1623
7ee35bf3
PS		 1624 sig->current_signal = -9999;
1625 sig->current_txrate = 0;
60a972a6
JM		 1626
1627 msg = nlmsg_alloc();
1628 if (!msg)
1629 return -ENOMEM;
1630
9fb04070 1631 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 1632
1633 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1634 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1635
1636 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1637 nla_put_failure:
1638 return -ENOBUFS;
1639}
1640
1641
7ee35bf3
PS		 1642static int get_link_noise(struct nl_msg *msg, void *arg)
1643{
1644 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1645 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1646 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1647 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1648 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1649 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1650 };
1c5c7273 1651 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1652
1653 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1654 genlmsg_attrlen(gnlh, 0), NULL);
1655
1656 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1657 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1658 return NL_SKIP;
1659 }
1660
1661 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1662 tb[NL80211_ATTR_SURVEY_INFO],
1663 survey_policy)) {
1664 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1665 "attributes!");
1666 return NL_SKIP;
1667 }
1668
1669 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1670 return NL_SKIP;
1671
1672 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1673 sig_change->frequency)
1674 return NL_SKIP;
1675
1676 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1677 return NL_SKIP;
1678
1679 sig_change->current_noise =
1680 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1681
1682 return NL_SKIP;
1683}
1684
1685
1686static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1687 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1688{
1689 struct nl_msg *msg;
1690
1691 sig_change->current_noise = 9999;
1692 sig_change->frequency = drv->assoc_freq;
1693
1694 msg = nlmsg_alloc();
1695 if (!msg)
1696 return -ENOMEM;
1697
9fb04070 1698 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 1699
1700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1701
1702 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1703 nla_put_failure:
1704 return -ENOBUFS;
1705}
1706
1707
577db0ae
GM		 1708static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
1709{
1710 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1711 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1712 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1713 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1714 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1715 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1716 };
1717 struct wpa_scan_results *scan_results = arg;
1718 struct wpa_scan_res *scan_res;
1719 size_t i;
1720
1721 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1722 genlmsg_attrlen(gnlh, 0), NULL);
1723
1724 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1725 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
1726 return NL_SKIP;
1727 }
1728
1729 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1730 tb[NL80211_ATTR_SURVEY_INFO],
1731 survey_policy)) {
1732 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
1733 "attributes");
1734 return NL_SKIP;
1735 }
1736
1737 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1738 return NL_SKIP;
1739
1740 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1741 return NL_SKIP;
1742
1743 for (i = 0; i < scan_results->num; ++i) {
1744 scan_res = scan_results->res[i];
1745 if (!scan_res)
1746 continue;
1747 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1748 scan_res->freq)
1749 continue;
1750 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
1751 continue;
1752 scan_res->noise = (s8)
1753 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1754 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
1755 }
1756
1757 return NL_SKIP;
1758}
1759
1760
1761static int nl80211_get_noise_for_scan_results(
1762 struct wpa_driver_nl80211_data *drv,
1763 struct wpa_scan_results *scan_res)
1764{
1765 struct nl_msg *msg;
1766
1767 msg = nlmsg_alloc();
1768 if (!msg)
1769 return -ENOMEM;
1770
1771 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1772
1773 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1774
1775 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
1776 scan_res);
1777 nla_put_failure:
1778 return -ENOBUFS;
1779}
1780
1781
93910401
JM		 1782static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1783 struct nlattr *tb[])
1784{
1785 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1786 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1787 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1788 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1789 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1790 };
1791 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1792 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1793 union wpa_event_data ed;
1c5c7273 1794 struct wpa_signal_info sig;
7ee35bf3 1795 int res;
93910401
JM		 1796
1797 if (tb[NL80211_ATTR_CQM] == NULL ||
1798 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1799 cqm_policy)) {
1800 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1801 return;
1802 }
1803
0d7e5a3a
JB		 1804 os_memset(&ed, 0, sizeof(ed));
1805
1806 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1807 if (!tb[NL80211_ATTR_MAC])
1808 return;
1809 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1810 ETH_ALEN);
1811 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1812 return;
1813 }
1814
93910401
JM		 1815 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1816 return;
1817 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1818
93910401
JM		 1819 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1820 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1821 "event: RSSI high");
b625473c 1822 ed.signal_change.above_threshold = 1;
93910401
JM		 1823 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1824 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1825 "event: RSSI low");
b625473c
JM		 1826 ed.signal_change.above_threshold = 0;
1827 } else
1828 return;
1829
60a972a6
JM		 1830 res = nl80211_get_link_signal(drv, &sig);
1831 if (res == 0) {
7ee35bf3
PS		 1832 ed.signal_change.current_signal = sig.current_signal;
1833 ed.signal_change.current_txrate = sig.current_txrate;
1834 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1835 sig.current_signal, sig.current_txrate);
1836 }
1837
1838 res = nl80211_get_link_noise(drv, &sig);
1839 if (res == 0) {
1840 ed.signal_change.current_noise = sig.current_noise;
1841 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1842 sig.current_noise);
60a972a6
JM		 1843 }
1844
b625473c 1845 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1846}
1847
1848
18d2ba08
JM		 1849static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1850 struct nlattr **tb)
1851{
1852 u8 *addr;
1853 union wpa_event_data data;
1854
1855 if (tb[NL80211_ATTR_MAC] == NULL)
1856 return;
1857 addr = nla_data(tb[NL80211_ATTR_MAC]);
1858 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 1859
61cbe2ff 1860 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 1861 u8 *ies = NULL;
1862 size_t ies_len = 0;
1863 if (tb[NL80211_ATTR_IE]) {
1864 ies = nla_data(tb[NL80211_ATTR_IE]);
1865 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1866 }
1867 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1868 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1869 return;
1870 }
1871
18d2ba08
JM		 1872 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1873 return;
1874
1875 os_memset(&data, 0, sizeof(data));
1876 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1877 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1878}
1879
1880
ef985058
JM		 1881static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1882 struct nlattr **tb)
1883{
1884 u8 *addr;
1885 union wpa_event_data data;
1886
1887 if (tb[NL80211_ATTR_MAC] == NULL)
1888 return;
1889 addr = nla_data(tb[NL80211_ATTR_MAC]);
1890 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
1891 MAC2STR(addr));
5f310a9e 1892
61cbe2ff 1893 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 1894 drv_event_disassoc(drv->ctx, addr);
1895 return;
1896 }
1897
ef985058
JM		 1898 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1899 return;
1900
1901 os_memset(&data, 0, sizeof(data));
1902 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
1903 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
1904}
1905
1906
b14a210c
JB		 1907static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
1908 struct nlattr **tb)
1909{
1910 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
1911 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
1912 [NL80211_REKEY_DATA_KEK] = {
1913 .minlen = NL80211_KEK_LEN,
1914 .maxlen = NL80211_KEK_LEN,
1915 },
1916 [NL80211_REKEY_DATA_KCK] = {
1917 .minlen = NL80211_KCK_LEN,
1918 .maxlen = NL80211_KCK_LEN,
1919 },
1920 [NL80211_REKEY_DATA_REPLAY_CTR] = {
1921 .minlen = NL80211_REPLAY_CTR_LEN,
1922 .maxlen = NL80211_REPLAY_CTR_LEN,
1923 },
1924 };
1925 union wpa_event_data data;
1926
1927 if (!tb[NL80211_ATTR_MAC])
1928 return;
1929 if (!tb[NL80211_ATTR_REKEY_DATA])
1930 return;
1931 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
1932 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
1933 return;
1934 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
1935 return;
1936
1937 os_memset(&data, 0, sizeof(data));
1938 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
1939 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
1940 MAC2STR(data.driver_gtk_rekey.bssid));
1941 data.driver_gtk_rekey.replay_ctr =
1942 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
1943 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
1944 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
1945 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
1946}
1947
1948
c36d5242
JM		 1949static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
1950 struct nlattr **tb)
1951{
1952 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
1953 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
1954 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
1955 [NL80211_PMKSA_CANDIDATE_BSSID] = {
1956 .minlen = ETH_ALEN,
1957 .maxlen = ETH_ALEN,
1958 },
1959 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
1960 };
1961 union wpa_event_data data;
1962
1963 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
1964 return;
1965 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
1966 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
1967 return;
1968 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
1969 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
1970 return;
1971
1972 os_memset(&data, 0, sizeof(data));
1973 os_memcpy(data.pmkid_candidate.bssid,
1974 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
1975 data.pmkid_candidate.index =
1976 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
1977 data.pmkid_candidate.preauth =
1978 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
1979 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
1980}
1981
1982
39718852
JB		 1983static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
1984 struct nlattr **tb)
1985{
1986 union wpa_event_data data;
1987
1988 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
1989 return;
1990
1991 os_memset(&data, 0, sizeof(data));
1992 os_memcpy(data.client_poll.addr,
1993 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1994
1995 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
1996}
1997
1998
3088e4e5
JB		 1999static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2000 int wds)
02bb32c3
JB		 2001{
2002 struct wpa_driver_nl80211_data *drv = bss->drv;
2003 union wpa_event_data event;
02bb32c3
JB		 2004
2005 if (!tb[NL80211_ATTR_MAC])
2006 return;
2007
02bb32c3 2008 os_memset(&event, 0, sizeof(event));
341eebee 2009 event.rx_from_unknown.bssid = bss->addr;
02bb32c3 2010 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
3088e4e5 2011 event.rx_from_unknown.wds = wds;
02bb32c3
JB		 2012
2013 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2014}
2015
2016
d6c9aab8
JB		 2017static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
2018 int cmd, struct nlattr **tb)
97865538 2019{
b1f625e0 2020 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
d6c9aab8
JB		 2021 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2022 cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 2023 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2024 drv->ap_scan_as_station);
2025 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 2026 }
2027
d6c9aab8 2028 switch (cmd) {
d942a79e
JM		 2029 case NL80211_CMD_TRIGGER_SCAN:
2030 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
2031 break;
d21c63b9
LC		 2032 case NL80211_CMD_START_SCHED_SCAN:
2033 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
2034 break;
2035 case NL80211_CMD_SCHED_SCAN_STOPPED:
2036 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
2037 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2038 break;
97865538
JM		 2039 case NL80211_CMD_NEW_SCAN_RESULTS:
2040 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
2041 drv->scan_complete_events = 1;
2042 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2043 drv->ctx);
8d923a4a 2044 send_scan_event(drv, 0, tb);
97865538 2045 break;
d21c63b9
LC		 2046 case NL80211_CMD_SCHED_SCAN_RESULTS:
2047 wpa_printf(MSG_DEBUG,
2048 "nl80211: New sched scan results available");
2049 send_scan_event(drv, 0, tb);
2050 break;
97865538
JM		 2051 case NL80211_CMD_SCAN_ABORTED:
2052 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
2053 /*
2054 * Need to indicate that scan results are available in order
2055 * not to make wpa_supplicant stop its scanning.
2056 */
2057 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2058 drv->ctx);
8d923a4a 2059 send_scan_event(drv, 1, tb);
97865538 2060 break;
c2a04078
JM		 2061 case NL80211_CMD_AUTHENTICATE:
2062 case NL80211_CMD_ASSOCIATE:
2063 case NL80211_CMD_DEAUTHENTICATE:
2064 case NL80211_CMD_DISASSOCIATE:
bd94971e 2065 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 2066 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2067 case NL80211_CMD_UNPROT_DISASSOCIATE:
d6c9aab8 2068 mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 2069 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2070 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2071 tb[NL80211_ATTR_COOKIE]);
c2a04078 2072 break;
da72a1c1
ZY		 2073 case NL80211_CMD_CONNECT:
2074 case NL80211_CMD_ROAM:
d6c9aab8 2075 mlme_event_connect(drv, cmd,
da72a1c1
ZY		 2076 tb[NL80211_ATTR_STATUS_CODE],
2077 tb[NL80211_ATTR_MAC],
2078 tb[NL80211_ATTR_REQ_IE],
2079 tb[NL80211_ATTR_RESP_IE]);
2080 break;
2081 case NL80211_CMD_DISCONNECT:
20f5a4c2
JM		 2082 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
2083 tb[NL80211_ATTR_MAC]);
da72a1c1 2084 break;
35583f3f
JM		 2085 case NL80211_CMD_MICHAEL_MIC_FAILURE:
2086 mlme_event_michael_mic_failure(drv, tb);
2087 break;
5cc4d64b
JM		 2088 case NL80211_CMD_JOIN_IBSS:
2089 mlme_event_join_ibss(drv, tb);
2090 break;
55777702
JM		 2091 case NL80211_CMD_REMAIN_ON_CHANNEL:
2092 mlme_event_remain_on_channel(drv, 0, tb);
2093 break;
2094 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2095 mlme_event_remain_on_channel(drv, 1, tb);
2096 break;
93910401
JM		 2097 case NL80211_CMD_NOTIFY_CQM:
2098 nl80211_cqm_event(drv, tb);
2099 break;
33c5deb8
JM		 2100 case NL80211_CMD_REG_CHANGE:
2101 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2102 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2103 NULL);
2104 break;
2105 case NL80211_CMD_REG_BEACON_HINT:
2106 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2107 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2108 NULL);
2109 break;
18d2ba08
JM		 2110 case NL80211_CMD_NEW_STATION:
2111 nl80211_new_station_event(drv, tb);
2112 break;
ef985058
JM		 2113 case NL80211_CMD_DEL_STATION:
2114 nl80211_del_station_event(drv, tb);
2115 break;
b14a210c
JB		 2116 case NL80211_CMD_SET_REKEY_OFFLOAD:
2117 nl80211_rekey_offload_event(drv, tb);
2118 break;
c36d5242
JM		 2119 case NL80211_CMD_PMKSA_CANDIDATE:
2120 nl80211_pmksa_candidate_event(drv, tb);
2121 break;
39718852
JB		 2122 case NL80211_CMD_PROBE_CLIENT:
2123 nl80211_client_probe_event(drv, tb);
2124 break;
97865538 2125 default:
c2a04078 2126 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
d6c9aab8 2127 "(cmd=%d)", cmd);
97865538
JM		 2128 break;
2129 }
d6c9aab8
JB		 2130}
2131
2132
2133static int process_drv_event(struct nl_msg *msg, void *arg)
2134{
2135 struct wpa_driver_nl80211_data *drv = arg;
2136 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2137 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2138
2139 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2140 genlmsg_attrlen(gnlh, 0), NULL);
2141
2142 if (tb[NL80211_ATTR_IFINDEX]) {
2143 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2144 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
2145 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
2146 " for foreign interface (ifindex %d)",
2147 gnlh->cmd, ifindex);
2148 return NL_SKIP;
2149 }
2150 }
2151
2152 do_process_drv_event(drv, gnlh->cmd, tb);
2153 return NL_SKIP;
2154}
2155
2156
2157static int process_global_event(struct nl_msg *msg, void *arg)
2158{
2159 struct nl80211_global *global = arg;
2160 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2161 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2162 struct wpa_driver_nl80211_data *drv;
2163 int ifidx = -1;
2164
2165 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2166 genlmsg_attrlen(gnlh, 0), NULL);
2167
2168 if (tb[NL80211_ATTR_IFINDEX])
2169 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2170
2171 dl_list_for_each(drv, &global->interfaces,
2172 struct wpa_driver_nl80211_data, list) {
2173 if (ifidx == -1 || ifidx == drv->ifindex ||
2174 have_ifidx(drv, ifidx))
2175 do_process_drv_event(drv, gnlh->cmd, tb);
2176 }
97865538
JM		 2177
2178 return NL_SKIP;
2179}
2180
2181
cc7a48d1
JB		 2182static int process_bss_event(struct nl_msg *msg, void *arg)
2183{
a11241fa 2184 struct i802_bss *bss = arg;
cc7a48d1
JB		 2185 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2186 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2187
2188 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2189 genlmsg_attrlen(gnlh, 0), NULL);
2190
2191 switch (gnlh->cmd) {
a11241fa
JB		 2192 case NL80211_CMD_FRAME:
2193 case NL80211_CMD_FRAME_TX_STATUS:
2194 mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
2195 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2196 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2197 tb[NL80211_ATTR_COOKIE]);
2198 break;
02bb32c3 2199 case NL80211_CMD_UNEXPECTED_FRAME:
3088e4e5
JB		 2200 nl80211_spurious_frame(bss, tb, 0);
2201 break;
2202 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2203 nl80211_spurious_frame(bss, tb, 1);
02bb32c3 2204 break;
cc7a48d1
JB		 2205 default:
2206 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2207 "(cmd=%d)", gnlh->cmd);
2208 break;
2209 }
2210
2211 return NL_SKIP;
2212}
2213
2214
97865538 2215static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 2216 void *handle)
97865538 2217{
a4ae123c 2218 struct nl_cb *cb = eloop_ctx;
97865538
JM		 2219
2220 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
2221
a4ae123c 2222 nl_recvmsgs(handle, cb);
97865538
JM		 2223}
2224
2225
6d158490
LR		 2226/**
2227 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2228 * @priv: driver_nl80211 private data
2229 * @alpha2_arg: country to which to switch to
2230 * Returns: 0 on success, -1 on failure
2231 *
2232 * This asks nl80211 to set the regulatory domain for given
2233 * country ISO / IEC alpha2.
2234 */
2235static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2236{
a2e40bb6
FF		 2237 struct i802_bss *bss = priv;
2238 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 2239 char alpha2[3];
2240 struct nl_msg *msg;
2241
2242 msg = nlmsg_alloc();
2243 if (!msg)
e785c2ba 2244 return -ENOMEM;
6d158490
LR		 2245
2246 alpha2[0] = alpha2_arg[0];
2247 alpha2[1] = alpha2_arg[1];
2248 alpha2[2] = '\0';
2249
9fb04070 2250 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 2251
2252 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2253 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2254 return -EINVAL;
2255 return 0;
2256nla_put_failure:
2257 return -EINVAL;
2258}
2259
2260
80bc75f1 2261struct wiphy_info_data {
e8b5e24e
JB		 2262 struct wpa_driver_capa *capa;
2263
2264 unsigned int error:1;
61cbe2ff 2265 unsigned int device_ap_sme:1;
39718852 2266 unsigned int poll_command_supported:1;
32ab4855 2267 unsigned int data_tx_status:1;
80bc75f1
JM		 2268};
2269
2270
562c9d97
AN		 2271static unsigned int probe_resp_offload_support(int supp_protocols)
2272{
2273 unsigned int prot = 0;
2274
2275 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2276 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2277 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2278 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2279 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2280 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2281 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2282 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2283
2284 return prot;
2285}
2286
2287
80bc75f1
JM		 2288static int wiphy_info_handler(struct nl_msg *msg, void *arg)
2289{
2290 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2291 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2292 struct wiphy_info_data *info = arg;
9f51b113 2293 int p2p_go_supported = 0, p2p_client_supported = 0;
e8b5e24e
JB		 2294 int p2p_concurrent = 0;
2295 int auth_supported = 0, connect_supported = 0;
2296 struct wpa_driver_capa *capa = info->capa;
7626850d
JB		 2297 static struct nla_policy
2298 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2299 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2300 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2301 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
2302 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
2303 },
2304 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2305 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2306 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2307 };
80bc75f1
JM		 2308
2309 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2310 genlmsg_attrlen(gnlh, 0), NULL);
2311
2312 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 2313 capa->max_scan_ssids =
80bc75f1
JM		 2314 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
2315
d21c63b9 2316 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 2317 capa->max_sched_scan_ssids =
d21c63b9
LC		 2318 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
2319
bd525934 2320 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 2321 capa->max_match_sets =
bd525934
LC		 2322 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
2323
1581b38b
JM		 2324 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
2325 struct nlattr *nl_mode;
2326 int i;
2327 nla_for_each_nested(nl_mode,
2328 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 2329 switch (nla_type(nl_mode)) {
9f51b113 2330 case NL80211_IFTYPE_AP:
e8b5e24e 2331 capa->flags |= WPA_DRIVER_FLAGS_AP;
1581b38b 2332 break;
9f51b113
JB		 2333 case NL80211_IFTYPE_P2P_GO:
2334 p2p_go_supported = 1;
2335 break;
2336 case NL80211_IFTYPE_P2P_CLIENT:
2337 p2p_client_supported = 1;
2338 break;
1581b38b
JM		 2339 }
2340 }
2341 }
2342
7626850d
JB		 2343 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
2344 struct nlattr *nl_combi;
2345 int rem_combi;
2346
2347 nla_for_each_nested(nl_combi,
2348 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
2349 rem_combi) {
2350 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
2351 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
2352 struct nlattr *nl_limit, *nl_mode;
2353 int err, rem_limit, rem_mode;
2354 int combination_has_p2p = 0, combination_has_mgd = 0;
2355
2356 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
2357 nl_combi,
2358 iface_combination_policy);
2359 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
2360 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
2361 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
2362 goto broken_combination;
2363
2364 nla_for_each_nested(nl_limit,
2365 tb_comb[NL80211_IFACE_COMB_LIMITS],
2366 rem_limit) {
2367 err = nla_parse_nested(tb_limit,
2368 MAX_NL80211_IFACE_LIMIT,
2369 nl_limit,
2370 iface_limit_policy);
2371 if (err ||
2372 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2373 goto broken_combination;
2374
2375 nla_for_each_nested(
2376 nl_mode,
2377 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2378 rem_mode) {
2379 int ift = nla_type(nl_mode);
2380 if (ift == NL80211_IFTYPE_P2P_GO ||
2381 ift == NL80211_IFTYPE_P2P_CLIENT)
2382 combination_has_p2p = 1;
2383 if (ift == NL80211_IFTYPE_STATION)
2384 combination_has_mgd = 1;
2385 }
2386 if (combination_has_p2p && combination_has_mgd)
2387 break;
2388 }
2389
2390 if (combination_has_p2p && combination_has_mgd) {
e8b5e24e 2391 p2p_concurrent = 1;
7626850d
JB		 2392 break;
2393 }
2394
2395broken_combination:
2396 ;
2397 }
2398 }
2399
93d11400
ZY		 2400 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
2401 struct nlattr *nl_cmd;
2402 int i;
2403
2404 nla_for_each_nested(nl_cmd,
2405 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
e8b5e24e
JB		 2406 switch (nla_get_u32(nl_cmd)) {
2407 case NL80211_CMD_AUTHENTICATE:
2408 auth_supported = 1;
2409 break;
2410 case NL80211_CMD_CONNECT:
2411 connect_supported = 1;
2412 break;
2413 case NL80211_CMD_START_SCHED_SCAN:
2414 capa->sched_scan_supported = 1;
2415 break;
39718852
JB		 2416 case NL80211_CMD_PROBE_CLIENT:
2417 info->poll_command_supported = 1;
2418 break;
e8b5e24e 2419 }
93d11400
ZY		 2420 }
2421 }
2422
e8b5e24e
JB		 2423 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
2424 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
2425 "off-channel TX");
2426 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
2427 }
2428
2429 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
2430 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
2431 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
2432 }
5dfca53f 2433
e8b5e24e
JB		 2434 /* default to 5000 since early versions of mac80211 don't set it */
2435 capa->max_remain_on_chan = 5000;
004ba773 2436
89e07afb 2437 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
e8b5e24e 2438 capa->max_remain_on_chan =
89e07afb
JB		 2439 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
2440
e8b5e24e
JB		 2441 if (auth_supported)
2442 capa->flags |= WPA_DRIVER_FLAGS_SME;
2443 else if (!connect_supported) {
2444 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
2445 "authentication/association or connect commands");
2446 info->error = 1;
2447 }
2448
2449 if (p2p_go_supported && p2p_client_supported)
2450 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
2451 if (p2p_concurrent) {
2452 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
2453 "interface (driver advertised support)");
2454 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
2455 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
2456 }
2457
03ea1786
AN		 2458 if (tb[NL80211_ATTR_TDLS_SUPPORT]) {
2459 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
2460 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
2461
2462 if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) {
2463 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
2464 capa->flags |=
2465 WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
2466 }
2467 }
2468
61cbe2ff
JB		 2469 if (tb[NL80211_ATTR_DEVICE_AP_SME])
2470 info->device_ap_sme = 1;
2471
32ab4855
JB		 2472 if (tb[NL80211_ATTR_FEATURE_FLAGS]) {
2473 u32 flags = nla_get_u32(tb[NL80211_ATTR_FEATURE_FLAGS]);
2474
2475 if (flags & NL80211_FEATURE_SK_TX_STATUS)
2476 info->data_tx_status = 1;
2477 }
2478
562c9d97
AN		 2479 if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) {
2480 int protocols =
2481 nla_get_u32(tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
2482 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response "
2483 "offload in AP mode");
2484 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
2485 capa->probe_resp_offloads =
2486 probe_resp_offload_support(protocols);
2487 }
2488
80bc75f1
JM		 2489 return NL_SKIP;
2490}
2491
2492
2493static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
2494 struct wiphy_info_data *info)
2495{
2496 struct nl_msg *msg;
2497
2498 os_memset(info, 0, sizeof(*info));
e8b5e24e 2499 info->capa = &drv->capa;
89e07afb 2500
80bc75f1
JM		 2501 msg = nlmsg_alloc();
2502 if (!msg)
2503 return -1;
2504
9fb04070 2505 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 2506
a2e40bb6 2507 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 2508
2509 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
2510 return 0;
2511 msg = NULL;
2512nla_put_failure:
2513 nlmsg_free(msg);
2514 return -1;
2515}
2516
2517
93d11400 2518static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 2519{
2520 struct wiphy_info_data info;
2521 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 2522 return -1;
e8b5e24e
JB		 2523
2524 if (info.error)
2525 return -1;
2526
80bc75f1 2527 drv->has_capability = 1;
1b2a72e8
JM		 2528 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2529 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2530 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2531 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2532 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2533 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2534 WPA_DRIVER_CAPA_ENC_WEP104 |
2535 WPA_DRIVER_CAPA_ENC_TKIP |
2536 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 2537 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2538 WPA_DRIVER_AUTH_SHARED |
2539 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 2540
871f4dd0 2541 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 2542 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 2543 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
4dc03726 2544 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 2545
61cbe2ff 2546 drv->device_ap_sme = info.device_ap_sme;
39718852 2547 drv->poll_command_supported = info.poll_command_supported;
32ab4855 2548 drv->data_tx_status = info.data_tx_status;
61cbe2ff 2549
a11241fa
JB		 2550 /*
2551 * If poll command is supported mac80211 is new enough to
2552 * have everything we need to not need monitor interfaces.
2553 */
2554 drv->use_monitor = !info.poll_command_supported;
2555
2556 /*
2557 * If we aren't going to use monitor interfaces, but the
2558 * driver doesn't support data TX status, we won't get TX
2559 * status for EAPOL frames.
2560 */
2561 if (!drv->use_monitor && !info.data_tx_status)
2562 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2563
93d11400 2564 return 0;
80bc75f1
JM		 2565}
2566
2567
2a7b66f5
BG		 2568static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
2569{
d6c9aab8
JB		 2570 int ret;
2571
2a7b66f5
BG		 2572 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2573 if (global->nl_cb == NULL) {
2574 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
2575 "callbacks");
2576 return -1;
2577 }
2578
481234cf
JM		 2579 global->nl = nl_create_handle(global->nl_cb, "nl");
2580 if (global->nl == NULL)
d6c9aab8 2581 goto err;
276e2d67 2582
481234cf 2583 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
335d42b1 2584 if (global->nl80211_id < 0) {
276e2d67
BG		 2585 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
2586 "found");
d6c9aab8 2587 goto err;
276e2d67
BG		 2588 }
2589
481234cf
JM		 2590 global->nl_event = nl_create_handle(global->nl_cb, "event");
2591 if (global->nl_event == NULL)
d6c9aab8 2592 goto err;
9fff9fdc 2593
d6c9aab8 2594 ret = nl_get_multicast_id(global, "nl80211", "scan");
97865538 2595 if (ret >= 0)
481234cf 2596 ret = nl_socket_add_membership(global->nl_event, ret);
97865538
JM		 2597 if (ret < 0) {
2598 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2599 "membership for scan events: %d (%s)",
2600 ret, strerror(-ret));
d6c9aab8 2601 goto err;
97865538 2602 }
c2a04078 2603
d6c9aab8 2604 ret = nl_get_multicast_id(global, "nl80211", "mlme");
c2a04078 2605 if (ret >= 0)
481234cf 2606 ret = nl_socket_add_membership(global->nl_event, ret);
c2a04078
JM		 2607 if (ret < 0) {
2608 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2609 "membership for mlme events: %d (%s)",
2610 ret, strerror(-ret));
d6c9aab8 2611 goto err;
c2a04078 2612 }
c2a04078 2613
d6c9aab8 2614 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
33c5deb8 2615 if (ret >= 0)
481234cf 2616 ret = nl_socket_add_membership(global->nl_event, ret);
33c5deb8
JM		 2617 if (ret < 0) {
2618 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2619 "membership for regulatory events: %d (%s)",
2620 ret, strerror(-ret));
2621 /* Continue without regulatory events */
2622 }
2623
d6c9aab8
JB		 2624 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2625 no_seq_check, NULL);
2626 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2627 process_global_event, global);
2628
481234cf 2629 eloop_register_read_sock(nl_socket_get_fd(global->nl_event),
d6c9aab8 2630 wpa_driver_nl80211_event_receive,
481234cf 2631 global->nl_cb, global->nl_event);
d6c9aab8
JB		 2632
2633 return 0;
2634
2635err:
2636 nl_destroy_handles(&global->nl_event);
2637 nl_destroy_handles(&global->nl);
2638 nl_cb_put(global->nl_cb);
2639 return -1;
2640}
2641
2642
2643static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
2644{
1afc986d
JB		 2645 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2646 if (!drv->nl_cb) {
2647 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
d6c9aab8 2648 return -1;
1afc986d
JB		 2649 }
2650
2651 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2652 no_seq_check, NULL);
f06aedd9
JB		 2653 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2654 process_drv_event, drv);
1afc986d 2655
9fff9fdc 2656 return 0;
9fff9fdc
JM		 2657}
2658
2659
8401a6b0
JM		 2660static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2661{
8401a6b0 2662 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 2663 /*
2664 * This may be for any interface; use ifdown event to disable
2665 * interface.
2666 */
8401a6b0
JM		 2667}
2668
2669
2670static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2671{
2672 struct wpa_driver_nl80211_data *drv = ctx;
2673 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
c81eff1a
BG		 2674 if (linux_set_iface_flags(drv->global->ioctl_sock,
2675 drv->first_bss.ifname, 1)) {
8401a6b0
JM		 2676 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2677 "after rfkill unblock");
2678 return;
2679 }
a63063b4 2680 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 2681}
2682
2683
6859f1cb
BG		 2684static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2685{
2686 /* Find phy (radio) to which this interface belongs */
2687 char buf[90], *pos;
2688 int f, rv;
2689
2690 drv->phyname[0] = '\0';
2691 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2692 drv->first_bss.ifname);
2693 f = open(buf, O_RDONLY);
2694 if (f < 0) {
2695 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2696 buf, strerror(errno));
2697 return;
2698 }
2699
2700 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2701 close(f);
2702 if (rv < 0) {
2703 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2704 buf, strerror(errno));
2705 return;
2706 }
2707
2708 drv->phyname[rv] = '\0';
2709 pos = os_strchr(drv->phyname, '\n');
2710 if (pos)
2711 *pos = '\0';
2712 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2713 drv->first_bss.ifname, drv->phyname);
2714}
2715
2716
32ab4855
JB		 2717static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
2718 void *eloop_ctx,
2719 void *handle)
2720{
2721 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2722 u8 data[2048];
2723 struct msghdr msg;
2724 struct iovec entry;
2725 struct {
2726 struct cmsghdr cm;
2727 char control[512];
2728 } control;
2729 struct cmsghdr *cmsg;
2730 int res, found_ee = 0, found_wifi = 0, acked = 0;
2731 union wpa_event_data event;
2732
2733 memset(&msg, 0, sizeof(msg));
2734 msg.msg_iov = &entry;
2735 msg.msg_iovlen = 1;
2736 entry.iov_base = data;
2737 entry.iov_len = sizeof(data);
2738 msg.msg_control = &control;
2739 msg.msg_controllen = sizeof(control);
2740
2741 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
2742 /* if error or not fitting 802.3 header, return */
2743 if (res < 14)
2744 return;
2745
2746 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
2747 {
2748 if (cmsg->cmsg_level == SOL_SOCKET &&
2749 cmsg->cmsg_type == SCM_WIFI_STATUS) {
2750 int *ack;
2751
2752 found_wifi = 1;
2753 ack = (void *)CMSG_DATA(cmsg);
2754 acked = *ack;
2755 }
2756
2757 if (cmsg->cmsg_level == SOL_PACKET &&
2758 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
2759 struct sock_extended_err *err =
2760 (struct sock_extended_err *)CMSG_DATA(cmsg);
2761
2762 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
2763 found_ee = 1;
2764 }
2765 }
2766
2767 if (!found_ee || !found_wifi)
2768 return;
2769
2770 memset(&event, 0, sizeof(event));
2771 event.eapol_tx_status.dst = data;
2772 event.eapol_tx_status.data = data + 14;
2773 event.eapol_tx_status.data_len = res - 14;
2774 event.eapol_tx_status.ack = acked;
2775 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
2776}
2777
2778
cc7a48d1
JB		 2779static int nl80211_init_bss(struct i802_bss *bss)
2780{
2781 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2782 if (!bss->nl_cb)
2783 return -1;
2784
2785 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2786 no_seq_check, NULL);
2787 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2788 process_bss_event, bss);
2789
2790 return 0;
2791}
2792
2793
2794static void nl80211_destroy_bss(struct i802_bss *bss)
2795{
2796 nl_cb_put(bss->nl_cb);
2797 bss->nl_cb = NULL;
2798}
2799
2800
9fff9fdc
JM		 2801/**
2802 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2803 * @ctx: context to be used when calling wpa_supplicant functions,
2804 * e.g., wpa_supplicant_event()
2805 * @ifname: interface name, e.g., wlan0
f2ed8023 2806 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 2807 * Returns: Pointer to private data, %NULL on failure
2808 */
f2ed8023
JM		 2809static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2810 void *global_priv)
9fff9fdc 2811{
9fff9fdc 2812 struct wpa_driver_nl80211_data *drv;
8401a6b0 2813 struct rfkill_config *rcfg;
a2e40bb6 2814 struct i802_bss *bss;
9fff9fdc 2815
a5c696ad
JM		 2816 if (global_priv == NULL)
2817 return NULL;
9fff9fdc
JM		 2818 drv = os_zalloc(sizeof(*drv));
2819 if (drv == NULL)
2820 return NULL;
f2ed8023 2821 drv->global = global_priv;
9fff9fdc 2822 drv->ctx = ctx;
a2e40bb6
FF		 2823 bss = &drv->first_bss;
2824 bss->drv = drv;
2825 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 2826 drv->monitor_ifidx = -1;
2827 drv->monitor_sock = -1;
d12dab4c 2828 drv->eapol_tx_sock = -1;
b1f625e0 2829 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 2830
ba2d0d7d 2831 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 2832 os_free(drv);
2833 return NULL;
2834 }
9fff9fdc 2835
cc7a48d1
JB		 2836 if (nl80211_init_bss(bss))
2837 goto failed;
2838
6859f1cb
BG		 2839 nl80211_get_phy_name(drv);
2840
8401a6b0
JM		 2841 rcfg = os_zalloc(sizeof(*rcfg));
2842 if (rcfg == NULL)
2843 goto failed;
2844 rcfg->ctx = drv;
2845 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
2846 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
2847 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
2848 drv->rfkill = rfkill_init(rcfg);
52169389 2849 if (drv->rfkill == NULL) {
8401a6b0 2850 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 2851 os_free(rcfg);
2852 }
8401a6b0 2853
08063178 2854 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 2855 goto failed;
7524cfb1 2856
d12dab4c 2857 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
32ab4855
JB		 2858 if (drv->eapol_tx_sock < 0)
2859 goto failed;
2860
2861 if (drv->data_tx_status) {
2862 int enabled = 1;
2863
2864 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
2865 &enabled, sizeof(enabled)) < 0) {
2866 wpa_printf(MSG_DEBUG,
2867 "nl80211: wifi status sockopt failed\n");
2868 drv->data_tx_status = 0;
a11241fa
JB		 2869 if (!drv->use_monitor)
2870 drv->capa.flags &=
2871 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
32ab4855
JB		 2872 } else {
2873 eloop_register_read_sock(drv->eapol_tx_sock,
2874 wpa_driver_nl80211_handle_eapol_tx_status,
2875 drv, NULL);
2876 }
2877 }
f10bfc9a 2878
dac12351 2879 if (drv->global) {
c4bb8817 2880 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 2881 drv->in_interface_list = 1;
2882 }
c4bb8817 2883
a2e40bb6 2884 return bss;
7524cfb1 2885
bbaf0837 2886failed:
dac12351 2887 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 2888 return NULL;
2889}
2890
2891
a11241fa 2892static int nl80211_register_frame(struct i802_bss *bss,
5582a5d1 2893 struct nl_handle *nl_handle,
bd94971e 2894 u16 type, const u8 *match, size_t match_len)
58f6fbe0 2895{
a11241fa 2896 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0
JM		 2897 struct nl_msg *msg;
2898 int ret = -1;
2899
2900 msg = nlmsg_alloc();
2901 if (!msg)
2902 return -1;
2903
9fb04070 2904 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0 2905
a11241fa 2906 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
bd94971e 2907 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 2908 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
2909
d6c9aab8 2910 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 2911 msg = NULL;
2912 if (ret) {
5582a5d1
JB		 2913 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
2914 "failed (type=%u): ret=%d (%s)",
2915 type, ret, strerror(-ret));
2916 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 2917 match, match_len);
2918 goto nla_put_failure;
2919 }
2920 ret = 0;
2921nla_put_failure:
2922 nlmsg_free(msg);
2923 return ret;
2924}
2925
2926
a11241fa
JB		 2927static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
2928{
2929 struct wpa_driver_nl80211_data *drv = bss->drv;
2930
481234cf 2931 if (bss->nl_mgmt) {
a11241fa
JB		 2932 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
2933 "already on!");
2934 return -1;
2935 }
2936
481234cf
JM		 2937 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
2938 if (bss->nl_mgmt == NULL)
a11241fa
JB		 2939 return -1;
2940
481234cf 2941 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt),
a11241fa 2942 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 2943 bss->nl_mgmt);
a11241fa
JB		 2944
2945 return 0;
2946}
2947
2948
2949static int nl80211_register_action_frame(struct i802_bss *bss,
bd94971e
JB		 2950 const u8 *match, size_t match_len)
2951{
2952 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
481234cf 2953 return nl80211_register_frame(bss, bss->nl_mgmt,
5582a5d1 2954 type, match, match_len);
bd94971e
JB		 2955}
2956
2957
a11241fa 2958static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
58f6fbe0 2959{
a11241fa
JB		 2960 struct wpa_driver_nl80211_data *drv = bss->drv;
2961
2962 if (nl80211_alloc_mgmt_handle(bss))
2963 return -1;
2964
4fe9fa0d 2965#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2 2966 /* GAS Initial Request */
a11241fa 2967 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
046b26a2
JM		 2968 return -1;
2969 /* GAS Initial Response */
a11241fa 2970 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
046b26a2 2971 return -1;
18708aad 2972 /* GAS Comeback Request */
a11241fa 2973 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
18708aad
JM		 2974 return -1;
2975 /* GAS Comeback Response */
a11241fa 2976 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
18708aad 2977 return -1;
4fe9fa0d
JM		 2978#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
2979#ifdef CONFIG_P2P
046b26a2 2980 /* P2P Public Action */
a11241fa 2981 if (nl80211_register_action_frame(bss,
046b26a2
JM		 2982 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
2983 6) < 0)
2984 return -1;
2985 /* P2P Action */
a11241fa 2986 if (nl80211_register_action_frame(bss,
046b26a2
JM		 2987 (u8 *) "\x7f\x50\x6f\x9a\x09",
2988 5) < 0)
2989 return -1;
2990#endif /* CONFIG_P2P */
7d878ca7
JM		 2991#ifdef CONFIG_IEEE80211W
2992 /* SA Query Response */
a11241fa 2993 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
7d878ca7
JM		 2994 return -1;
2995#endif /* CONFIG_IEEE80211W */
35287637
AN		 2996#ifdef CONFIG_TDLS
2997 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
2998 /* TDLS Discovery Response */
2999 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0e", 2) <
3000 0)
3001 return -1;
3002 }
3003#endif /* CONFIG_TDLS */
046b26a2 3004
7b90c16a 3005 /* FT Action frames */
a11241fa 3006 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
7b90c16a
JM		 3007 return -1;
3008 else
3009 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3010 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3011
71269b37 3012 /* WNM - BSS Transition Management Request */
a11241fa
JB		 3013 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3014 return -1;
3015
3016 return 0;
3017}
3018
3019
02bb32c3
JB		 3020static int nl80211_register_spurious_class3(struct i802_bss *bss)
3021{
3022 struct wpa_driver_nl80211_data *drv = bss->drv;
3023 struct nl_msg *msg;
3024 int ret = -1;
3025
3026 msg = nlmsg_alloc();
3027 if (!msg)
3028 return -1;
3029
3030 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3031
3032 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3033
481234cf 3034 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
02bb32c3
JB		 3035 msg = NULL;
3036 if (ret) {
3037 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3038 "failed: ret=%d (%s)",
3039 ret, strerror(-ret));
3040 goto nla_put_failure;
3041 }
3042 ret = 0;
3043nla_put_failure:
3044 nlmsg_free(msg);
3045 return ret;
3046}
3047
3048
a11241fa
JB		 3049static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3050{
3051 static const int stypes[] = {
3052 WLAN_FC_STYPE_AUTH,
3053 WLAN_FC_STYPE_ASSOC_REQ,
3054 WLAN_FC_STYPE_REASSOC_REQ,
3055 WLAN_FC_STYPE_DISASSOC,
3056 WLAN_FC_STYPE_DEAUTH,
3057 WLAN_FC_STYPE_ACTION,
3058 WLAN_FC_STYPE_PROBE_REQ,
3059/* Beacon doesn't work as mac80211 doesn't currently allow
3060 * it, but it wouldn't really be the right thing anyway as
3061 * it isn't per interface ... maybe just dump the scan
3062 * results periodically for OLBC?
3063 */
3064// WLAN_FC_STYPE_BEACON,
3065 };
3066 unsigned int i;
3067
3068 if (nl80211_alloc_mgmt_handle(bss))
71269b37
JM		 3069 return -1;
3070
a11241fa 3071 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) {
481234cf 3072 if (nl80211_register_frame(bss, bss->nl_mgmt,
a11241fa
JB		 3073 (WLAN_FC_TYPE_MGMT << 2) |
3074 (stypes[i] << 4),
3075 NULL, 0) < 0) {
3076 goto out_err;
3077 }
3078 }
3079
02bb32c3
JB		 3080 if (nl80211_register_spurious_class3(bss))
3081 goto out_err;
3082
e32ad281
JB		 3083 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3084 goto out_err;
3085
58f6fbe0 3086 return 0;
a11241fa
JB		 3087
3088out_err:
481234cf 3089 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa
JB		 3090 nl_destroy_handles(&bss->nl_mgmt);
3091 return -1;
3092}
3093
3094
3095static void nl80211_mgmt_unsubscribe(struct i802_bss *bss)
3096{
481234cf 3097 if (bss->nl_mgmt == NULL)
a11241fa 3098 return;
481234cf 3099 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa 3100 nl_destroy_handles(&bss->nl_mgmt);
e32ad281
JB		 3101
3102 nl80211_put_wiphy_data_ap(bss);
58f6fbe0
JM		 3103}
3104
3105
8401a6b0
JM		 3106static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
3107{
3108 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
3109}
3110
3111
362f781e 3112static int
7524cfb1
JM		 3113wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
3114{
a2e40bb6 3115 struct i802_bss *bss = &drv->first_bss;
8401a6b0 3116 int send_rfkill_event = 0;
a2e40bb6
FF		 3117
3118 drv->ifindex = if_nametoindex(bss->ifname);
3119 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 3120
bbaf0837 3121#ifndef HOSTAPD
ff6a158b
JM		 3122 /*
3123 * Make sure the interface starts up in station mode unless this is a
3124 * dynamically added interface (e.g., P2P) that was already configured
3125 * with proper iftype.
3126 */
a5c696ad 3127 if (drv->ifindex != drv->global->if_add_ifindex &&
b1f625e0 3128 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 3129 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 3130 "use managed mode");
6e8183d7 3131 return -1;
a87c9d96
JM		 3132 }
3133
c81eff1a 3134 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 3135 if (rfkill_is_blocked(drv->rfkill)) {
3136 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
3137 "interface '%s' due to rfkill",
3138 bss->ifname);
a63063b4 3139 drv->if_disabled = 1;
8401a6b0
JM		 3140 send_rfkill_event = 1;
3141 } else {
3142 wpa_printf(MSG_ERROR, "nl80211: Could not set "
3143 "interface '%s' UP", bss->ifname);
3144 return -1;
3145 }
362f781e 3146 }
3f5285e8 3147
36d84860 3148 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 3149 1, IF_OPER_DORMANT);
bbaf0837 3150#endif /* HOSTAPD */
362f781e 3151
2fee890a
JM		 3152 if (wpa_driver_nl80211_capa(drv))
3153 return -1;
3154
c81eff1a 3155 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
341eebee 3156 bss->addr))
2136f480 3157 return -1;
f2ed8023 3158
8401a6b0
JM		 3159 if (send_rfkill_event) {
3160 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
3161 drv, drv->ctx);
3162 }
3163
362f781e 3164 return 0;
3f5285e8
JM		 3165}
3166
3167
8a27af5c
JM		 3168static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
3169{
3170 struct nl_msg *msg;
3171
3172 msg = nlmsg_alloc();
3173 if (!msg)
3174 return -ENOMEM;
3175
9fb04070 3176 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 3177 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3178
3179 return send_and_recv_msgs(drv, msg, NULL, NULL);
3180 nla_put_failure:
3181 return -ENOBUFS;
3182}
8a27af5c
JM		 3183
3184
3f5285e8 3185/**
7e5ba1b9
JM		 3186 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
3187 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 3188 *
3189 * Shut down driver interface and processing of driver events. Free
3190 * private data buffer if one was allocated in wpa_driver_nl80211_init().
3191 */
7e5ba1b9 3192static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 3193{
a2e40bb6
FF		 3194 struct i802_bss *bss = priv;
3195 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 3196
32ab4855
JB		 3197 if (drv->data_tx_status)
3198 eloop_unregister_read_sock(drv->eapol_tx_sock);
d12dab4c
JB		 3199 if (drv->eapol_tx_sock >= 0)
3200 close(drv->eapol_tx_sock);
f10bfc9a 3201
481234cf 3202 if (bss->nl_preq)
5582a5d1 3203 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 3204 if (bss->added_if_into_bridge) {
c81eff1a
BG		 3205 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
3206 bss->ifname) < 0)
94627f6c
JM		 3207 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3208 "interface %s from bridge %s: %s",
e17a2477 3209 bss->ifname, bss->brname, strerror(errno));
94627f6c 3210 }
e17a2477 3211 if (bss->added_bridge) {
c81eff1a 3212 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 3213 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3214 "bridge %s: %s",
e17a2477 3215 bss->brname, strerror(errno));
94627f6c
JM		 3216 }
3217
460456f8 3218 nl80211_remove_monitor_interface(drv);
8a27af5c 3219
b1f625e0 3220 if (is_ap_interface(drv->nlmode))
8a27af5c 3221 wpa_driver_nl80211_del_beacon(drv);
0915d02c 3222
bbaf0837
JM		 3223#ifdef HOSTAPD
3224 if (drv->last_freq_ht) {
3225 /* Clear HT flags from the driver */
3226 struct hostapd_freq_params freq;
3227 os_memset(&freq, 0, sizeof(freq));
3228 freq.freq = drv->last_freq;
3229 i802_set_freq(priv, &freq);
3230 }
3231
bbaf0837
JM		 3232 if (drv->eapol_sock >= 0) {
3233 eloop_unregister_read_sock(drv->eapol_sock);
3234 close(drv->eapol_sock);
3235 }
3236
3237 if (drv->if_indices != drv->default_if_indices)
3238 os_free(drv->if_indices);
1b648c7e 3239#endif /* HOSTAPD */
3f5285e8 3240
b3af99d2 3241 if (drv->disabled_11b_rates)
4e5cb1a3
JM		 3242 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3243
36d84860
BG		 3244 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
3245 IF_OPER_UP);
8401a6b0 3246 rfkill_deinit(drv->rfkill);
3f5285e8 3247
bbaf0837
JM		 3248 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3249
c81eff1a 3250 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
b1f625e0 3251 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
a11241fa 3252 nl80211_mgmt_unsubscribe(bss);
3f5285e8 3253
1afc986d 3254 nl_cb_put(drv->nl_cb);
3f5285e8 3255
cc7a48d1
JB		 3256 nl80211_destroy_bss(&drv->first_bss);
3257
3812464c
JM		 3258 os_free(drv->filter_ssids);
3259
536fd62d
JM		 3260 os_free(drv->auth_ie);
3261
dac12351 3262 if (drv->in_interface_list)
f2ed8023
JM		 3263 dl_list_del(&drv->list);
3264
3f5285e8
JM		 3265 os_free(drv);
3266}
3267
3268
3269/**
3270 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 3271 * @eloop_ctx: Driver private data
3f5285e8
JM		 3272 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
3273 *
3274 * This function can be used as registered timeout when starting a scan to
3275 * generate a scan completed event if the driver does not report this.
3276 */
3277static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
3278{
ad1e68e6 3279 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 3280 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 3281 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 3282 drv->ap_scan_as_station);
3283 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 3284 }
3f5285e8
JM		 3285 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
3286 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
3287}
3288
3289
3290/**
3291 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 3292 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 3293 * @params: Scan parameters
3f5285e8
JM		 3294 * Returns: 0 on success, -1 on failure
3295 */
6a1063e0
JM		 3296static int wpa_driver_nl80211_scan(void *priv,
3297 struct wpa_driver_scan_params *params)
3f5285e8 3298{
a2e40bb6
FF		 3299 struct i802_bss *bss = priv;
3300 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 3301 int ret = 0, timeout;
47185fc7 3302 struct nl_msg *msg, *ssids, *freqs, *rates;
6a1063e0 3303 size_t i;
3f5285e8 3304
536fd62d
JM		 3305 drv->scan_for_auth = 0;
3306
0e75527f
JM		 3307 msg = nlmsg_alloc();
3308 ssids = nlmsg_alloc();
d3a98225 3309 freqs = nlmsg_alloc();
47185fc7
RM		 3310 rates = nlmsg_alloc();
3311 if (!msg || !ssids || !freqs || !rates) {
0e75527f
JM		 3312 nlmsg_free(msg);
3313 nlmsg_free(ssids);
d3a98225 3314 nlmsg_free(freqs);
47185fc7 3315 nlmsg_free(rates);
3f5285e8
JM		 3316 return -1;
3317 }
3318
3812464c
JM		 3319 os_free(drv->filter_ssids);
3320 drv->filter_ssids = params->filter_ssids;
3321 params->filter_ssids = NULL;
3322 drv->num_filter_ssids = params->num_filter_ssids;
3323
9fb04070 3324 nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN);
0e75527f
JM		 3325
3326 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 3327
6a1063e0 3328 for (i = 0; i < params->num_ssids; i++) {
9fad706c
JM		 3329 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
3330 params->ssids[i].ssid,
3331 params->ssids[i].ssid_len);
6a1063e0
JM		 3332 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
3333 params->ssids[i].ssid);
3f5285e8 3334 }
6a1063e0
JM		 3335 if (params->num_ssids)
3336 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 3337
d173df52 3338 if (params->extra_ies) {
3b1c7bfd
JM		 3339 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
3340 params->extra_ies, params->extra_ies_len);
d173df52
JM		 3341 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
3342 params->extra_ies);
3343 }
3344
d3a98225 3345 if (params->freqs) {
9fad706c
JM		 3346 for (i = 0; params->freqs[i]; i++) {
3347 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3348 "MHz", params->freqs[i]);
d3a98225 3349 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
9fad706c 3350 }
d3a98225
JM		 3351 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
3352 }
3353
47185fc7
RM		 3354 if (params->p2p_probe) {
3355 /*
3356 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
3357 * by masking out everything else apart from the OFDM rates 6,
3358 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
3359 * rates are left enabled.
3360 */
3361 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
3362 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
3363 nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates);
970fa12e
RM		 3364
3365 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
47185fc7
RM		 3366 }
3367
0e75527f
JM		 3368 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3369 msg = NULL;
3370 if (ret) {
3371 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
3372 "(%s)", ret, strerror(-ret));
ad1e68e6 3373#ifdef HOSTAPD
b1f625e0 3374 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 3375 /*
3376 * mac80211 does not allow scan requests in AP mode, so
3377 * try to do this in station mode.
3378 */
b1f625e0
EP		 3379 if (wpa_driver_nl80211_set_mode(
3380 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 3381 goto nla_put_failure;
3382
3383 if (wpa_driver_nl80211_scan(drv, params)) {
b1f625e0 3384 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 3385 goto nla_put_failure;
3386 }
3387
3388 /* Restore AP mode when processing scan results */
b1f625e0 3389 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 3390 ret = 0;
3391 } else
3392 goto nla_put_failure;
3393#else /* HOSTAPD */
0e75527f 3394 goto nla_put_failure;
ad1e68e6 3395#endif /* HOSTAPD */
3f5285e8
JM		 3396 }
3397
3398 /* Not all drivers generate "scan completed" wireless event, so try to
3399 * read results after a timeout. */
0e75527f 3400 timeout = 10;
3f5285e8
JM		 3401 if (drv->scan_complete_events) {
3402 /*
d173df52
JM		 3403 * The driver seems to deliver events to notify when scan is
3404 * complete, so use longer timeout to avoid race conditions
3405 * with scanning and following association request.
3f5285e8
JM		 3406 */
3407 timeout = 30;
3408 }
3409 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
3410 "seconds", ret, timeout);
3411 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 3412 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
3413 drv, drv->ctx);
3f5285e8 3414
0e75527f
JM		 3415nla_put_failure:
3416 nlmsg_free(ssids);
3417 nlmsg_free(msg);
d3a98225 3418 nlmsg_free(freqs);
47185fc7 3419 nlmsg_free(rates);
3f5285e8
JM		 3420 return ret;
3421}
3422
3423
d21c63b9
LC		 3424/**
3425 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
3426 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3427 * @params: Scan parameters
3428 * @interval: Interval between scan cycles in milliseconds
3429 * Returns: 0 on success, -1 on failure or if not supported
3430 */
3431static int wpa_driver_nl80211_sched_scan(void *priv,
3432 struct wpa_driver_scan_params *params,
3433 u32 interval)
3434{
3435 struct i802_bss *bss = priv;
3436 struct wpa_driver_nl80211_data *drv = bss->drv;
3437 int ret = 0;
bd525934 3438 struct nl_msg *msg, *ssids, *freqs, *match_set_ssid, *match_sets;
d21c63b9
LC		 3439 size_t i;
3440
216eede8
DS		 3441#ifdef ANDROID
3442 if (!drv->capa.sched_scan_supported)
3443 return android_pno_start(bss, params);
3444#endif /* ANDROID */
3445
d21c63b9
LC		 3446 msg = nlmsg_alloc();
3447 ssids = nlmsg_alloc();
3448 freqs = nlmsg_alloc();
3449 if (!msg || !ssids || !freqs) {
3450 nlmsg_free(msg);
3451 nlmsg_free(ssids);
3452 nlmsg_free(freqs);
3453 return -1;
3454 }
3455
3456 os_free(drv->filter_ssids);
3457 drv->filter_ssids = params->filter_ssids;
3458 params->filter_ssids = NULL;
3459 drv->num_filter_ssids = params->num_filter_ssids;
3460
9fb04070 3461 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_SCHED_SCAN);
d21c63b9
LC		 3462
3463 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3464
3465 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
3466
fb67eec6
JM		 3467 if (drv->num_filter_ssids &&
3468 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) {
bd525934
LC		 3469 match_sets = nlmsg_alloc();
3470
3471 for (i = 0; i < drv->num_filter_ssids; i++) {
3472 wpa_hexdump_ascii(MSG_MSGDUMP,
3473 "nl80211: Sched scan filter SSID",
3474 drv->filter_ssids[i].ssid,
3475 drv->filter_ssids[i].ssid_len);
3476
3477 match_set_ssid = nlmsg_alloc();
3478 nla_put(match_set_ssid,
3479 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
3480 drv->filter_ssids[i].ssid_len,
3481 drv->filter_ssids[i].ssid);
3482
3483 nla_put_nested(match_sets, i + 1, match_set_ssid);
3484
3485 nlmsg_free(match_set_ssid);
3486 }
3487
3488 nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
3489 match_sets);
3490 nlmsg_free(match_sets);
3491 }
3492
d21c63b9
LC		 3493 for (i = 0; i < params->num_ssids; i++) {
3494 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID",
3495 params->ssids[i].ssid,
3496 params->ssids[i].ssid_len);
3497 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
3498 params->ssids[i].ssid);
3499 }
3500 if (params->num_ssids)
3501 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3502
3503 if (params->extra_ies) {
3504 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs",
3505 params->extra_ies, params->extra_ies_len);
3506 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
3507 params->extra_ies);
3508 }
3509
3510 if (params->freqs) {
3511 for (i = 0; params->freqs[i]; i++) {
3512 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3513 "MHz", params->freqs[i]);
3514 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
3515 }
3516 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
3517 }
3518
3519 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3520
3521 /* TODO: if we get an error here, we should fall back to normal scan */
3522
3523 msg = NULL;
3524 if (ret) {
3525 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
3526 "ret=%d (%s)", ret, strerror(-ret));
3527 goto nla_put_failure;
3528 }
3529
3530 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
3531 "scan interval %d msec", ret, interval);
3532
3533nla_put_failure:
3534 nlmsg_free(ssids);
3535 nlmsg_free(msg);
3536 nlmsg_free(freqs);
3537 return ret;
3538}
3539
3540
3541/**
3542 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
3543 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3544 * Returns: 0 on success, -1 on failure or if not supported
3545 */
3546static int wpa_driver_nl80211_stop_sched_scan(void *priv)
3547{
3548 struct i802_bss *bss = priv;
3549 struct wpa_driver_nl80211_data *drv = bss->drv;
3550 int ret = 0;
3551 struct nl_msg *msg;
3552
216eede8
DS		 3553#ifdef ANDROID
3554 if (!drv->capa.sched_scan_supported)
3555 return android_pno_stop(bss);
3556#endif /* ANDROID */
3557
d21c63b9
LC		 3558 msg = nlmsg_alloc();
3559 if (!msg)
3560 return -1;
3561
9fb04070 3562 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 3563
3564 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3565
3566 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3567 msg = NULL;
3568 if (ret) {
3569 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
3570 "ret=%d (%s)", ret, strerror(-ret));
3571 goto nla_put_failure;
3572 }
3573
3574 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
3575
3576nla_put_failure:
3577 nlmsg_free(msg);
3578 return ret;
3579}
3580
3581
3812464c
JM		 3582static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
3583{
3584 const u8 *end, *pos;
3585
3586 if (ies == NULL)
3587 return NULL;
3588
3589 pos = ies;
3590 end = ies + ies_len;
3591
3592 while (pos + 1 < end) {
3593 if (pos + 2 + pos[1] > end)
3594 break;
3595 if (pos[0] == ie)
3596 return pos;
3597 pos += 2 + pos[1];
3598 }
3599
3600 return NULL;
3601}
3602
3603
3604static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
3605 const u8 *ie, size_t ie_len)
3606{
3607 const u8 *ssid;
3608 size_t i;
3609
3610 if (drv->filter_ssids == NULL)
3611 return 0;
3612
3613 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
3614 if (ssid == NULL)
3615 return 1;
3616
3617 for (i = 0; i < drv->num_filter_ssids; i++) {
3618 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
3619 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
3620 0)
3621 return 0;
3622 }
3623
3624 return 1;
3625}
3626
3627
b3db1e1c 3628static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 3629{
b3db1e1c
JM		 3630 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3631 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3632 struct nlattr *bss[NL80211_BSS_MAX + 1];
3633 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
3634 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
3635 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
3636 [NL80211_BSS_TSF] = { .type = NLA_U64 },
3637 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
3638 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
3639 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
3640 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
3641 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 3642 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 3643 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 3644 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 3645 };
3812464c
JM		 3646 struct nl80211_bss_info_arg *_arg = arg;
3647 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 3648 struct wpa_scan_res **tmp;
3649 struct wpa_scan_res *r;
8c090654
JM		 3650 const u8 *ie, *beacon_ie;
3651 size_t ie_len, beacon_ie_len;
3652 u8 *pos;
46957a9b 3653 size_t i;
3f5285e8 3654
b3db1e1c
JM		 3655 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3656 genlmsg_attrlen(gnlh, 0), NULL);
3657 if (!tb[NL80211_ATTR_BSS])
3658 return NL_SKIP;
3659 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
3660 bss_policy))
3661 return NL_SKIP;
f5a8d422
JM		 3662 if (bss[NL80211_BSS_STATUS]) {
3663 enum nl80211_bss_status status;
3664 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3665 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3666 bss[NL80211_BSS_FREQUENCY]) {
3667 _arg->assoc_freq =
3668 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3669 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
3670 _arg->assoc_freq);
3671 }
20f5a4c2
JM		 3672 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3673 bss[NL80211_BSS_BSSID]) {
3674 os_memcpy(_arg->assoc_bssid,
3675 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
3676 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
3677 MACSTR, MAC2STR(_arg->assoc_bssid));
3678 }
f5a8d422
JM		 3679 }
3680 if (!res)
3681 return NL_SKIP;
b3db1e1c
JM		 3682 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
3683 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3684 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3685 } else {
3686 ie = NULL;
3687 ie_len = 0;
3688 }
8c090654
JM		 3689 if (bss[NL80211_BSS_BEACON_IES]) {
3690 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
3691 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
3692 } else {
3693 beacon_ie = NULL;
3694 beacon_ie_len = 0;
3695 }
3f5285e8 3696
3812464c
JM		 3697 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
3698 ie ? ie_len : beacon_ie_len))
3699 return NL_SKIP;
3700
8c090654 3701 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 3702 if (r == NULL)
b3db1e1c
JM		 3703 return NL_SKIP;
3704 if (bss[NL80211_BSS_BSSID])
3705 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
3706 ETH_ALEN);
3707 if (bss[NL80211_BSS_FREQUENCY])
3708 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3709 if (bss[NL80211_BSS_BEACON_INTERVAL])
3710 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
3711 if (bss[NL80211_BSS_CAPABILITY])
3712 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 3713 r->flags |= WPA_SCAN_NOISE_INVALID;
3714 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 3715 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 3716 r->level /= 100; /* mBm to dBm */
3717 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
3718 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
3719 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
98ac6763 3720 r->flags |= WPA_SCAN_QUAL_INVALID;
7c2849d2
JM		 3721 } else
3722 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 3723 if (bss[NL80211_BSS_TSF])
3724 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 3725 if (bss[NL80211_BSS_SEEN_MS_AGO])
3726 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 3727 r->ie_len = ie_len;
8c090654
JM		 3728 pos = (u8 *) (r + 1);
3729 if (ie) {
3730 os_memcpy(pos, ie, ie_len);
3731 pos += ie_len;
3732 }
3733 r->beacon_ie_len = beacon_ie_len;
3734 if (beacon_ie)
3735 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 3736
e6b8efeb
JM		 3737 if (bss[NL80211_BSS_STATUS]) {
3738 enum nl80211_bss_status status;
3739 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3740 switch (status) {
3741 case NL80211_BSS_STATUS_AUTHENTICATED:
3742 r->flags |= WPA_SCAN_AUTHENTICATED;
3743 break;
3744 case NL80211_BSS_STATUS_ASSOCIATED:
3745 r->flags |= WPA_SCAN_ASSOCIATED;
3746 break;
3747 default:
3748 break;
3749 }
3750 }
3751
46957a9b
JM		 3752 /*
3753 * cfg80211 maintains separate BSS table entries for APs if the same
3754 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
3755 * not use frequency as a separate key in the BSS table, so filter out
3756 * duplicated entries. Prefer associated BSS entry in such a case in
3757 * order to get the correct frequency into the BSS table.
3758 */
3759 for (i = 0; i < res->num; i++) {
3760 const u8 *s1, *s2;
3761 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
3762 continue;
3763
3764 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
3765 res->res[i]->ie_len, WLAN_EID_SSID);
3766 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
3767 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
3768 os_memcmp(s1, s2, 2 + s1[1]) != 0)
3769 continue;
3770
3771 /* Same BSSID,SSID was already included in scan results */
3772 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
3773 "for " MACSTR, MAC2STR(r->bssid));
3774
3775 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
3776 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
3777 os_free(res->res[i]);
3778 res->res[i] = r;
3779 } else
3780 os_free(r);
3781 return NL_SKIP;
3782 }
3783
3f5285e8
JM		 3784 tmp = os_realloc(res->res,
3785 (res->num + 1) * sizeof(struct wpa_scan_res *));
3786 if (tmp == NULL) {
3787 os_free(r);
b3db1e1c 3788 return NL_SKIP;
3f5285e8
JM		 3789 }
3790 tmp[res->num++] = r;
3791 res->res = tmp;
b3db1e1c
JM		 3792
3793 return NL_SKIP;
3f5285e8 3794}
b3db1e1c 3795
3f5285e8 3796
d72aad94
JM		 3797static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
3798 const u8 *addr)
3799{
3800 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
3801 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 3802 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 3803 wpa_driver_nl80211_mlme(drv, addr,
3804 NL80211_CMD_DEAUTHENTICATE,
77339912 3805 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 3806 }
3807}
3808
3809
e6b8efeb
JM		 3810static void wpa_driver_nl80211_check_bss_status(
3811 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
3812{
3813 size_t i;
3814
3815 for (i = 0; i < res->num; i++) {
3816 struct wpa_scan_res *r = res->res[i];
3817 if (r->flags & WPA_SCAN_AUTHENTICATED) {
3818 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3819 "indicates BSS status with " MACSTR
3820 " as authenticated",
3821 MAC2STR(r->bssid));
b1f625e0 3822 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3823 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
3824 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
3825 0) {
3826 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
3827 " in local state (auth=" MACSTR
3828 " assoc=" MACSTR ")",
3829 MAC2STR(drv->auth_bssid),
3830 MAC2STR(drv->bssid));
582507be 3831 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 3832 }
3833 }
3834
3835 if (r->flags & WPA_SCAN_ASSOCIATED) {
3836 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3837 "indicate BSS status with " MACSTR
3838 " as associated",
3839 MAC2STR(r->bssid));
b1f625e0 3840 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3841 !drv->associated) {
3842 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3843 "(not associated) does not match "
3844 "with BSS state");
d72aad94 3845 clear_state_mismatch(drv, r->bssid);
b1f625e0 3846 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3847 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
3848 0) {
3849 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3850 "(associated with " MACSTR ") does "
3851 "not match with BSS state",
d72aad94
JM		 3852 MAC2STR(drv->bssid));
3853 clear_state_mismatch(drv, r->bssid);
3854 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 3855 }
3856 }
3857 }
3858}
3859
3860
7e5ba1b9 3861static struct wpa_scan_results *
8856462d 3862nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 3863{
b3db1e1c 3864 struct nl_msg *msg;
3f5285e8 3865 struct wpa_scan_results *res;
b3db1e1c 3866 int ret;
3812464c 3867 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 3868
3869 res = os_zalloc(sizeof(*res));
b3db1e1c 3870 if (res == NULL)
8e2c104f 3871 return NULL;
b3db1e1c
JM		 3872 msg = nlmsg_alloc();
3873 if (!msg)
3874 goto nla_put_failure;
3f5285e8 3875
9fb04070 3876 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
b3db1e1c 3877 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 3878
3812464c
JM		 3879 arg.drv = drv;
3880 arg.res = res;
3881 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 3882 msg = NULL;
3883 if (ret == 0) {
577db0ae
GM		 3884 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
3885 "BSSes)", (unsigned long) res->num);
3886 nl80211_get_noise_for_scan_results(drv, res);
b3db1e1c 3887 return res;
3f5285e8 3888 }
b3db1e1c
JM		 3889 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
3890 "(%s)", ret, strerror(-ret));
3891nla_put_failure:
3892 nlmsg_free(msg);
3893 wpa_scan_results_free(res);
3894 return NULL;
3f5285e8
JM		 3895}
3896
3897
8856462d
JM		 3898/**
3899 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
3900 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
3901 * Returns: Scan results on success, -1 on failure
3902 */
3903static struct wpa_scan_results *
3904wpa_driver_nl80211_get_scan_results(void *priv)
3905{
a2e40bb6
FF		 3906 struct i802_bss *bss = priv;
3907 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 3908 struct wpa_scan_results *res;
3909
3910 res = nl80211_get_scan_results(drv);
3911 if (res)
3912 wpa_driver_nl80211_check_bss_status(drv, res);
3913 return res;
3914}
3915
3916
3917static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
3918{
3919 struct wpa_scan_results *res;
3920 size_t i;
3921
3922 res = nl80211_get_scan_results(drv);
3923 if (res == NULL) {
3924 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
3925 return;
3926 }
3927
3928 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
3929 for (i = 0; i < res->num; i++) {
3930 struct wpa_scan_res *r = res->res[i];
3931 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
3932 (int) i, (int) res->num, MAC2STR(r->bssid),
3933 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
3934 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
3935 }
3936
3937 wpa_scan_results_free(res);
3938}
3939
3940
642187d6 3941static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 3942 enum wpa_alg alg, const u8 *addr,
3943 int key_idx, int set_tx,
642187d6
JM		 3944 const u8 *seq, size_t seq_len,
3945 const u8 *key, size_t key_len)
3f5285e8 3946{
a2e40bb6
FF		 3947 struct i802_bss *bss = priv;
3948 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 3949 int ifindex = if_nametoindex(ifname);
3f5285e8 3950 struct nl_msg *msg;
1ad1cdc2 3951 int ret;
3f5285e8 3952
1ad1cdc2
JM		 3953 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
3954 "set_tx=%d seq_len=%lu key_len=%lu",
3955 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8 3956 (unsigned long) seq_len, (unsigned long) key_len);
8c66e185
JM		 3957#ifdef CONFIG_TDLS
3958 if (key_idx == -1)
3959 key_idx = 0;
3960#endif /* CONFIG_TDLS */
3f5285e8
JM		 3961
3962 msg = nlmsg_alloc();
1ad1cdc2
JM		 3963 if (!msg)
3964 return -ENOMEM;
3f5285e8
JM		 3965
3966 if (alg == WPA_ALG_NONE) {
9fb04070 3967 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 3968 } else {
9fb04070 3969 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 3970 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 3971 switch (alg) {
3972 case WPA_ALG_WEP:
3973 if (key_len == 5)
3974 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3975 WLAN_CIPHER_SUITE_WEP40);
3976 else
3977 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3978 WLAN_CIPHER_SUITE_WEP104);
3979 break;
3980 case WPA_ALG_TKIP:
3981 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3982 WLAN_CIPHER_SUITE_TKIP);
3983 break;
3984 case WPA_ALG_CCMP:
3985 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3986 WLAN_CIPHER_SUITE_CCMP);
3987 break;
3988 case WPA_ALG_IGTK:
3989 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3990 WLAN_CIPHER_SUITE_AES_CMAC);
3991 break;
3992 default:
3993 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3994 "algorithm %d", __func__, alg);
3f5285e8
JM		 3995 nlmsg_free(msg);
3996 return -1;
3997 }
3998 }
3999
849ef835 4000 if (seq && seq_len)
1ad1cdc2
JM		 4001 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
4002
0382097e 4003 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 4004 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
4005 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 4006
4007 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
4008 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
4009 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
4010 NL80211_KEYTYPE_GROUP);
4011 }
60ea8187
JM		 4012 } else if (addr && is_broadcast_ether_addr(addr)) {
4013 struct nl_msg *types;
4014 int err;
4015 wpa_printf(MSG_DEBUG, " broadcast key");
4016 types = nlmsg_alloc();
4017 if (!types)
4018 goto nla_put_failure;
4019 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4020 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4021 types);
4022 nlmsg_free(types);
4023 if (err)
4024 goto nla_put_failure;
3f5285e8
JM		 4025 }
4026 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 4027 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 4028
1ad1cdc2 4029 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 4030 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 4031 ret = 0;
4032 if (ret)
4033 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
4034 ret, strerror(-ret));
3f5285e8 4035
1ad1cdc2
JM		 4036 /*
4037 * If we failed or don't need to set the default TX key (below),
4038 * we're done here.
4039 */
4040 if (ret || !set_tx || alg == WPA_ALG_NONE)
4041 return ret;
b1f625e0 4042 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 4043 !is_broadcast_ether_addr(addr))
de12717a 4044 return ret;
3f5285e8 4045
1ad1cdc2
JM		 4046 msg = nlmsg_alloc();
4047 if (!msg)
4048 return -ENOMEM;
3f5285e8 4049
9fb04070 4050 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 4051 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4052 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4053 if (alg == WPA_ALG_IGTK)
4054 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
4055 else
4056 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 4057 if (addr && is_broadcast_ether_addr(addr)) {
4058 struct nl_msg *types;
4059 int err;
4060 types = nlmsg_alloc();
4061 if (!types)
4062 goto nla_put_failure;
4063 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4064 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4065 types);
4066 nlmsg_free(types);
4067 if (err)
4068 goto nla_put_failure;
4069 } else if (addr) {
4070 struct nl_msg *types;
4071 int err;
4072 types = nlmsg_alloc();
4073 if (!types)
4074 goto nla_put_failure;
4075 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
4076 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4077 types);
4078 nlmsg_free(types);
4079 if (err)
4080 goto nla_put_failure;
4081 }
3f5285e8 4082
1ad1cdc2
JM		 4083 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4084 if (ret == -ENOENT)
4085 ret = 0;
4086 if (ret)
4087 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
4088 "err=%d %s)", ret, strerror(-ret));
4089 return ret;
3f5285e8
JM		 4090
4091nla_put_failure:
6241fcb1 4092 return -ENOBUFS;
3f5285e8
JM		 4093}
4094
4095
71934751 4096static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 4097 int key_idx, int defkey,
4098 const u8 *seq, size_t seq_len,
4099 const u8 *key, size_t key_len)
4100{
4101 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
4102 if (!key_attr)
4103 return -1;
4104
4105 if (defkey && alg == WPA_ALG_IGTK)
4106 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
4107 else if (defkey)
4108 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4109
4110 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
4111
d723bab4
JM		 4112 switch (alg) {
4113 case WPA_ALG_WEP:
4114 if (key_len == 5)
2aa5f847
JM		 4115 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4116 WLAN_CIPHER_SUITE_WEP40);
d723bab4 4117 else
2aa5f847
JM		 4118 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4119 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 4120 break;
4121 case WPA_ALG_TKIP:
2aa5f847 4122 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 4123 break;
4124 case WPA_ALG_CCMP:
2aa5f847 4125 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 4126 break;
4127 case WPA_ALG_IGTK:
2aa5f847
JM		 4128 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4129 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 4130 break;
4131 default:
4132 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4133 "algorithm %d", __func__, alg);
0194fedb 4134 return -1;
d723bab4 4135 }
0194fedb
JB		 4136
4137 if (seq && seq_len)
4138 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
4139
4140 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
4141
4142 nla_nest_end(msg, key_attr);
4143
4144 return 0;
4145 nla_put_failure:
4146 return -1;
4147}
4148
c811d5bc 4149
cfaab580
ZY		 4150static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
4151 struct nl_msg *msg)
4152{
4153 int i, privacy = 0;
4154 struct nlattr *nl_keys, *nl_key;
4155
4156 for (i = 0; i < 4; i++) {
4157 if (!params->wep_key[i])
4158 continue;
4159 privacy = 1;
4160 break;
4161 }
ce04af5a
JM		 4162 if (params->wps == WPS_MODE_PRIVACY)
4163 privacy = 1;
4164 if (params->pairwise_suite &&
4165 params->pairwise_suite != WPA_CIPHER_NONE)
4166 privacy = 1;
4167
cfaab580
ZY		 4168 if (!privacy)
4169 return 0;
4170
4171 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4172
4173 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
4174 if (!nl_keys)
4175 goto nla_put_failure;
4176
4177 for (i = 0; i < 4; i++) {
4178 if (!params->wep_key[i])
4179 continue;
4180
4181 nl_key = nla_nest_start(msg, i);
4182 if (!nl_key)
4183 goto nla_put_failure;
4184
4185 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
4186 params->wep_key[i]);
4187 if (params->wep_key_len[i] == 5)
4188 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4189 WLAN_CIPHER_SUITE_WEP40);
4190 else
4191 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4192 WLAN_CIPHER_SUITE_WEP104);
4193
4194 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
4195
4196 if (i == params->wep_tx_keyidx)
4197 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4198
4199 nla_nest_end(msg, nl_key);
4200 }
4201 nla_nest_end(msg, nl_keys);
4202
4203 return 0;
4204
4205nla_put_failure:
4206 return -ENOBUFS;
4207}
4208
4209
c2a04078 4210static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 4211 const u8 *addr, int cmd, u16 reason_code,
4212 int local_state_change)
c2a04078
JM		 4213{
4214 int ret = -1;
4215 struct nl_msg *msg;
4216
4217 msg = nlmsg_alloc();
4218 if (!msg)
4219 return -1;
4220
9fb04070 4221 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 4222
4223 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4224 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
4225 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 4226 if (local_state_change)
4227 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 4228
4229 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4230 msg = NULL;
4231 if (ret) {
3b7ea880
BG		 4232 wpa_dbg(drv->ctx, MSG_DEBUG,
4233 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
4234 reason_code, ret, strerror(-ret));
c2a04078
JM		 4235 goto nla_put_failure;
4236 }
4237 ret = 0;
4238
4239nla_put_failure:
4240 nlmsg_free(msg);
4241 return ret;
4242}
3f5285e8
JM		 4243
4244
cfaab580
ZY		 4245static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
4246 const u8 *addr, int reason_code)
4247{
2e75a2b3
JM		 4248 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4249 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 4250 drv->associated = 0;
4251 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 4252 reason_code, 0);
cfaab580
ZY		 4253}
4254
4255
3f5285e8 4256static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 4257 int reason_code)
3f5285e8 4258{
a2e40bb6
FF		 4259 struct i802_bss *bss = priv;
4260 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 4261 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4262 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 4263 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4264 __func__, MAC2STR(addr), reason_code);
13405f35 4265 drv->associated = 0;
21bdbe38
JM		 4266 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
4267 return nl80211_leave_ibss(drv);
c2a04078 4268 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 4269 reason_code, 0);
3f5285e8
JM		 4270}
4271
4272
4273static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 4274 int reason_code)
3f5285e8 4275{
a2e40bb6
FF		 4276 struct i802_bss *bss = priv;
4277 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 4278 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4279 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 4280 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 4281 drv->associated = 0;
c2a04078 4282 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 4283 reason_code, 0);
3f5285e8
JM		 4284}
4285
4286
536fd62d
JM		 4287static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
4288 struct wpa_driver_auth_params *params)
4289{
4290 int i;
4291
4292 drv->auth_freq = params->freq;
4293 drv->auth_alg = params->auth_alg;
4294 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
4295 drv->auth_local_state_change = params->local_state_change;
4296 drv->auth_p2p = params->p2p;
4297
4298 if (params->bssid)
4299 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
4300 else
4301 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
4302
4303 if (params->ssid) {
4304 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
4305 drv->auth_ssid_len = params->ssid_len;
4306 } else
4307 drv->auth_ssid_len = 0;
4308
4309
4310 os_free(drv->auth_ie);
4311 drv->auth_ie = NULL;
4312 drv->auth_ie_len = 0;
4313 if (params->ie) {
4314 drv->auth_ie = os_malloc(params->ie_len);
4315 if (drv->auth_ie) {
4316 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
4317 drv->auth_ie_len = params->ie_len;
4318 }
4319 }
4320
4321 for (i = 0; i < 4; i++) {
4322 if (params->wep_key[i] && params->wep_key_len[i] &&
4323 params->wep_key_len[i] <= 16) {
4324 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
4325 params->wep_key_len[i]);
4326 drv->auth_wep_key_len[i] = params->wep_key_len[i];
4327 } else
4328 drv->auth_wep_key_len[i] = 0;
4329 }
4330}
4331
4332
c2a04078
JM		 4333static int wpa_driver_nl80211_authenticate(
4334 void *priv, struct wpa_driver_auth_params *params)
4335{
a2e40bb6
FF		 4336 struct i802_bss *bss = priv;
4337 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 4338 int ret = -1, i;
c2a04078
JM		 4339 struct nl_msg *msg;
4340 enum nl80211_auth_type type;
2f4f73b1 4341 enum nl80211_iftype nlmode;
6d6f4bb8 4342 int count = 0;
536fd62d
JM		 4343 int is_retry;
4344
4345 is_retry = drv->retry_auth;
4346 drv->retry_auth = 0;
c2a04078
JM		 4347
4348 drv->associated = 0;
e6b8efeb 4349 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 4350 /* FIX: IBSS mode */
2f4f73b1
EP		 4351 nlmode = params->p2p ?
4352 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
4353 if (drv->nlmode != nlmode &&
4354 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032
JM		 4355 return -1;
4356
6d6f4bb8 4357retry:
c2a04078
JM		 4358 msg = nlmsg_alloc();
4359 if (!msg)
4360 return -1;
4361
4362 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
4363 drv->ifindex);
a0b2f99b 4364
9fb04070 4365 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 4366
a0b2f99b
JM		 4367 for (i = 0; i < 4; i++) {
4368 if (!params->wep_key[i])
4369 continue;
2ea2fcc7
HS		 4370 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
4371 NULL, i,
a0b2f99b
JM		 4372 i == params->wep_tx_keyidx, NULL, 0,
4373 params->wep_key[i],
4374 params->wep_key_len[i]);
0194fedb
JB		 4375 if (params->wep_tx_keyidx != i)
4376 continue;
4377 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
4378 params->wep_key[i], params->wep_key_len[i])) {
4379 nlmsg_free(msg);
4380 return -1;
4381 }
a0b2f99b
JM		 4382 }
4383
c2a04078
JM		 4384 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4385 if (params->bssid) {
4386 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4387 MAC2STR(params->bssid));
4388 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4389 }
4390 if (params->freq) {
4391 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4392 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4393 }
4394 if (params->ssid) {
4395 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4396 params->ssid, params->ssid_len);
4397 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4398 params->ssid);
4399 }
4400 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
4401 if (params->ie)
4402 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 4403 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 4404 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 4405 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 4406 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 4407 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 4408 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 4409 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 4410 type = NL80211_AUTHTYPE_FT;
4411 else
4412 goto nla_put_failure;
4413 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4414 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 4415 if (params->local_state_change) {
4416 wpa_printf(MSG_DEBUG, " * Local state change only");
4417 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4418 }
c2a04078
JM		 4419
4420 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4421 msg = NULL;
4422 if (ret) {
3b7ea880
BG		 4423 wpa_dbg(drv->ctx, MSG_DEBUG,
4424 "nl80211: MLME command failed (auth): ret=%d (%s)",
4425 ret, strerror(-ret));
6d6f4bb8 4426 count++;
77339912
JM		 4427 if (ret == -EALREADY && count == 1 && params->bssid &&
4428 !params->local_state_change) {
6d6f4bb8
JM		 4429 /*
4430 * mac80211 does not currently accept new
4431 * authentication if we are already authenticated. As a
4432 * workaround, force deauthentication and try again.
4433 */
4434 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
4435 "after forced deauthentication");
4436 wpa_driver_nl80211_deauthenticate(
5205c4f9 4437 bss, params->bssid,
6d6f4bb8
JM		 4438 WLAN_REASON_PREV_AUTH_NOT_VALID);
4439 nlmsg_free(msg);
4440 goto retry;
4441 }
536fd62d
JM		 4442
4443 if (ret == -ENOENT && params->freq && !is_retry) {
4444 /*
4445 * cfg80211 has likely expired the BSS entry even
4446 * though it was previously available in our internal
4447 * BSS table. To recover quickly, start a single
4448 * channel scan on the specified channel.
4449 */
4450 struct wpa_driver_scan_params scan;
4451 int freqs[2];
4452
4453 os_memset(&scan, 0, sizeof(scan));
4454 scan.num_ssids = 1;
4455 if (params->ssid) {
4456 scan.ssids[0].ssid = params->ssid;
4457 scan.ssids[0].ssid_len = params->ssid_len;
4458 }
4459 freqs[0] = params->freq;
4460 freqs[1] = 0;
4461 scan.freqs = freqs;
4462 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
4463 "channel scan to refresh cfg80211 BSS "
4464 "entry");
4465 ret = wpa_driver_nl80211_scan(bss, &scan);
4466 if (ret == 0) {
4467 nl80211_copy_auth_params(drv, params);
4468 drv->scan_for_auth = 1;
4469 }
8c3ba078
JM		 4470 } else if (is_retry) {
4471 /*
4472 * Need to indicate this with an event since the return
4473 * value from the retry is not delivered to core code.
4474 */
4475 union wpa_event_data event;
4476 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
4477 "failed");
4478 os_memset(&event, 0, sizeof(event));
4479 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
4480 ETH_ALEN);
4481 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
4482 &event);
536fd62d
JM		 4483 }
4484
c2a04078
JM		 4485 goto nla_put_failure;
4486 }
4487 ret = 0;
4488 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
4489 "successfully");
4490
4491nla_put_failure:
4492 nlmsg_free(msg);
4493 return ret;
4494}
4495
4496
536fd62d
JM		 4497static int wpa_driver_nl80211_authenticate_retry(
4498 struct wpa_driver_nl80211_data *drv)
4499{
4500 struct wpa_driver_auth_params params;
4501 struct i802_bss *bss = &drv->first_bss;
4502 int i;
4503
4504 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
4505
4506 os_memset(&params, 0, sizeof(params));
4507 params.freq = drv->auth_freq;
4508 params.auth_alg = drv->auth_alg;
4509 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
4510 params.local_state_change = drv->auth_local_state_change;
4511 params.p2p = drv->auth_p2p;
4512
4513 if (!is_zero_ether_addr(drv->auth_bssid_))
4514 params.bssid = drv->auth_bssid_;
4515
4516 if (drv->auth_ssid_len) {
4517 params.ssid = drv->auth_ssid;
4518 params.ssid_len = drv->auth_ssid_len;
4519 }
4520
4521 params.ie = drv->auth_ie;
4522 params.ie_len = drv->auth_ie_len;
4523
4524 for (i = 0; i < 4; i++) {
4525 if (drv->auth_wep_key_len[i]) {
4526 params.wep_key[i] = drv->auth_wep_key[i];
4527 params.wep_key_len[i] = drv->auth_wep_key_len[i];
4528 }
4529 }
4530
4531 drv->retry_auth = 1;
4532 return wpa_driver_nl80211_authenticate(bss, &params);
4533}
4534
4535
282d5590
JM		 4536struct phy_info_arg {
4537 u16 *num_modes;
4538 struct hostapd_hw_modes *modes;
4539};
4540
4541static int phy_info_handler(struct nl_msg *msg, void *arg)
4542{
4543 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
4544 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4545 struct phy_info_arg *phy_info = arg;
4546
4547 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
4548
4549 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
4550 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
4551 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
4552 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
4553 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
4554 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
4555 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
4556 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
4557 };
4558
4559 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
4560 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
4561 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
4562 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
4563 };
4564
4565 struct nlattr *nl_band;
4566 struct nlattr *nl_freq;
4567 struct nlattr *nl_rate;
4568 int rem_band, rem_freq, rem_rate;
4569 struct hostapd_hw_modes *mode;
4570 int idx, mode_is_set;
4571
4572 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4573 genlmsg_attrlen(gnlh, 0), NULL);
4574
4575 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
4576 return NL_SKIP;
4577
4578 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 4579 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 4580 if (!mode)
4581 return NL_SKIP;
4582 phy_info->modes = mode;
4583
4584 mode_is_set = 0;
4585
4586 mode = &phy_info->modes[*(phy_info->num_modes)];
4587 memset(mode, 0, sizeof(*mode));
e3b473eb 4588 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
282d5590
JM		 4589 *(phy_info->num_modes) += 1;
4590
4591 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
4592 nla_len(nl_band), NULL);
4593
4594 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
4595 mode->ht_capab = nla_get_u16(
4596 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
4597 }
4598
be8eb8ab
JM		 4599 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
4600 mode->a_mpdu_params |= nla_get_u8(
4601 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
4602 0x03;
4603 }
4604
4605 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
4606 mode->a_mpdu_params |= nla_get_u8(
4607 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
4608 2;
4609 }
4610
08eb154d
JM		 4611 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
4612 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
4613 u8 *mcs;
4614 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
4615 os_memcpy(mode->mcs_set, mcs, 16);
4616 }
4617
282d5590
JM		 4618 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4619 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4620 nla_len(nl_freq), freq_policy);
4621 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4622 continue;
4623 mode->num_channels++;
4624 }
4625
e62fb0a0 4626 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 4627 if (!mode->channels)
4628 return NL_SKIP;
4629
4630 idx = 0;
4631
4632 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4633 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4634 nla_len(nl_freq), freq_policy);
4635 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4636 continue;
4637
4638 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
4639 mode->channels[idx].flag = 0;
4640
4641 if (!mode_is_set) {
4642 /* crude heuristic */
4643 if (mode->channels[idx].freq < 4000)
4644 mode->mode = HOSTAPD_MODE_IEEE80211B;
4645 else
4646 mode->mode = HOSTAPD_MODE_IEEE80211A;
4647 mode_is_set = 1;
4648 }
4649
4650 /* crude heuristic */
4651 if (mode->channels[idx].freq < 4000)
5a0ffb5f 4652 if (mode->channels[idx].freq == 2484)
282d5590
JM		 4653 mode->channels[idx].chan = 14;
4654 else
4655 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
4656 else
4657 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
4658
4659 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4660 mode->channels[idx].flag |=
4661 HOSTAPD_CHAN_DISABLED;
4662 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
4663 mode->channels[idx].flag |=
4664 HOSTAPD_CHAN_PASSIVE_SCAN;
4665 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
4666 mode->channels[idx].flag |=
4667 HOSTAPD_CHAN_NO_IBSS;
4668 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
4669 mode->channels[idx].flag |=
4670 HOSTAPD_CHAN_RADAR;
4671
4672 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
4673 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4674 mode->channels[idx].max_tx_power =
4675 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
4676
4677 idx++;
4678 }
4679
4680 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4681 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4682 nla_len(nl_rate), rate_policy);
4683 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4684 continue;
4685 mode->num_rates++;
4686 }
4687
e62fb0a0 4688 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 4689 if (!mode->rates)
4690 return NL_SKIP;
4691
4692 idx = 0;
4693
4694 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4695 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4696 nla_len(nl_rate), rate_policy);
4697 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4698 continue;
fb7842aa 4699 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 4700
4701 /* crude heuristic */
4702 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 4703 mode->rates[idx] > 200)
282d5590
JM		 4704 mode->mode = HOSTAPD_MODE_IEEE80211G;
4705
282d5590
JM		 4706 idx++;
4707 }
4708 }
4709
4710 return NL_SKIP;
4711}
4712
4713static struct hostapd_hw_modes *
4714wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
4715{
4716 u16 m;
4717 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
4718 int i, mode11g_idx = -1;
4719
4720 /* If only 802.11g mode is included, use it to construct matching
4721 * 802.11b mode data. */
4722
4723 for (m = 0; m < *num_modes; m++) {
4724 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
4725 return modes; /* 802.11b already included */
4726 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
4727 mode11g_idx = m;
4728 }
4729
4730 if (mode11g_idx < 0)
4731 return modes; /* 2.4 GHz band not supported at all */
4732
4733 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
4734 if (nmodes == NULL)
4735 return modes; /* Could not add 802.11b mode */
4736
4737 mode = &nmodes[*num_modes];
4738 os_memset(mode, 0, sizeof(*mode));
4739 (*num_modes)++;
4740 modes = nmodes;
4741
4742 mode->mode = HOSTAPD_MODE_IEEE80211B;
4743
4744 mode11g = &modes[mode11g_idx];
4745 mode->num_channels = mode11g->num_channels;
4746 mode->channels = os_malloc(mode11g->num_channels *
4747 sizeof(struct hostapd_channel_data));
4748 if (mode->channels == NULL) {
4749 (*num_modes)--;
4750 return modes; /* Could not add 802.11b mode */
4751 }
4752 os_memcpy(mode->channels, mode11g->channels,
4753 mode11g->num_channels * sizeof(struct hostapd_channel_data));
4754
4755 mode->num_rates = 0;
fb7842aa 4756 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 4757 if (mode->rates == NULL) {
4758 os_free(mode->channels);
4759 (*num_modes)--;
4760 return modes; /* Could not add 802.11b mode */
4761 }
4762
4763 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 4764 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
4765 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 4766 continue;
4767 mode->rates[mode->num_rates] = mode11g->rates[i];
4768 mode->num_rates++;
4769 if (mode->num_rates == 4)
4770 break;
4771 }
4772
4773 if (mode->num_rates == 0) {
4774 os_free(mode->channels);
4775 os_free(mode->rates);
4776 (*num_modes)--;
4777 return modes; /* No 802.11b rates */
4778 }
4779
4780 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
4781 "information");
4782
4783 return modes;
4784}
4785
4786
d8e66e80
JM		 4787static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
4788 int end)
4789{
4790 int c;
4791
4792 for (c = 0; c < mode->num_channels; c++) {
4793 struct hostapd_channel_data *chan = &mode->channels[c];
4794 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
4795 chan->flag |= HOSTAPD_CHAN_HT40;
4796 }
4797}
4798
4799
4800static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
4801 int end)
4802{
4803 int c;
4804
4805 for (c = 0; c < mode->num_channels; c++) {
4806 struct hostapd_channel_data *chan = &mode->channels[c];
4807 if (!(chan->flag & HOSTAPD_CHAN_HT40))
4808 continue;
4809 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
4810 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
4811 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
4812 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
4813 }
4814}
4815
4816
4817static void nl80211_reg_rule_ht40(struct nlattr *tb[],
4818 struct phy_info_arg *results)
4819{
4820 u32 start, end, max_bw;
4821 u16 m;
4822
4823 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
4824 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
4825 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
4826 return;
4827
4828 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
4829 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
4830 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
4831
4832 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
4833 start, end, max_bw);
4834 if (max_bw < 40)
4835 return;
4836
4837 for (m = 0; m < *results->num_modes; m++) {
4838 if (!(results->modes[m].ht_capab &
4839 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
4840 continue;
4841 nl80211_set_ht40_mode(&results->modes[m], start, end);
4842 }
4843}
4844
4845
4846static void nl80211_reg_rule_sec(struct nlattr *tb[],
4847 struct phy_info_arg *results)
4848{
4849 u32 start, end, max_bw;
4850 u16 m;
4851
4852 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
4853 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
4854 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
4855 return;
4856
4857 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
4858 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
4859 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
4860
4861 if (max_bw < 20)
4862 return;
4863
4864 for (m = 0; m < *results->num_modes; m++) {
4865 if (!(results->modes[m].ht_capab &
4866 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
4867 continue;
4868 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
4869 }
4870}
4871
4872
4873static int nl80211_get_reg(struct nl_msg *msg, void *arg)
4874{
4875 struct phy_info_arg *results = arg;
4876 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
4877 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4878 struct nlattr *nl_rule;
4879 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
4880 int rem_rule;
4881 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
4882 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4883 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4884 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4885 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4886 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4887 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4888 };
4889
4890 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4891 genlmsg_attrlen(gnlh, 0), NULL);
4892 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
4893 !tb_msg[NL80211_ATTR_REG_RULES]) {
4894 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
4895 "available");
4896 return NL_SKIP;
4897 }
4898
4899 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
4900 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
4901
4902 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
4903 {
4904 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
4905 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
4906 nl80211_reg_rule_ht40(tb_rule, results);
4907 }
4908
4909 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
4910 {
4911 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
4912 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
4913 nl80211_reg_rule_sec(tb_rule, results);
4914 }
4915
4916 return NL_SKIP;
4917}
4918
4919
4920static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
4921 struct phy_info_arg *results)
4922{
4923 struct nl_msg *msg;
4924
4925 msg = nlmsg_alloc();
4926 if (!msg)
4927 return -ENOMEM;
4928
9fb04070 4929 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 4930 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
4931}
4932
4933
282d5590
JM		 4934static struct hostapd_hw_modes *
4935wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
4936{
a2e40bb6
FF		 4937 struct i802_bss *bss = priv;
4938 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 4939 struct nl_msg *msg;
4940 struct phy_info_arg result = {
4941 .num_modes = num_modes,
4942 .modes = NULL,
4943 };
4944
4945 *num_modes = 0;
4946 *flags = 0;
4947
4948 msg = nlmsg_alloc();
4949 if (!msg)
4950 return NULL;
4951
9fb04070 4952 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590
JM		 4953
4954 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4955
d8e66e80
JM		 4956 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
4957 nl80211_set_ht40_flags(drv, &result);
282d5590 4958 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 4959 }
282d5590
JM		 4960 nla_put_failure:
4961 return NULL;
4962}
4963
4964
a11241fa
JB		 4965static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
4966 const void *data, size_t len,
4967 int encrypt, int noack)
2c2010ac
JM		 4968{
4969 __u8 rtap_hdr[] = {
4970 0x00, 0x00, /* radiotap version */
4971 0x0e, 0x00, /* radiotap length */
4972 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
4973 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
4974 0x00, /* padding */
4975 0x00, 0x00, /* RX and TX flags to indicate that */
4976 0x00, 0x00, /* this is the injected frame directly */
4977 };
4978 struct iovec iov[2] = {
4979 {
4980 .iov_base = &rtap_hdr,
4981 .iov_len = sizeof(rtap_hdr),
4982 },
4983 {
4984 .iov_base = (void *) data,
4985 .iov_len = len,
4986 }
4987 };
4988 struct msghdr msg = {
4989 .msg_name = NULL,
4990 .msg_namelen = 0,
4991 .msg_iov = iov,
4992 .msg_iovlen = 2,
4993 .msg_control = NULL,
4994 .msg_controllen = 0,
4995 .msg_flags = 0,
4996 };
ebbec8b2 4997 int res;
fab25336 4998 u16 txflags = 0;
2c2010ac
JM		 4999
5000 if (encrypt)
5001 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
5002
866af8b6
JM		 5003 if (drv->monitor_sock < 0) {
5004 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
5005 "for %s", __func__);
5006 return -1;
5007 }
5008
fab25336
HS		 5009 if (noack)
5010 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
5011 *(le16 *) &rtap_hdr[12] = host_to_le16(txflags);
5012
ebbec8b2
JM		 5013 res = sendmsg(drv->monitor_sock, &msg, 0);
5014 if (res < 0) {
5015 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
5016 return -1;
5017 }
5018 return 0;
2c2010ac
JM		 5019}
5020
5021
a11241fa
JB		 5022static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
5023 const void *data, size_t len,
5024 int encrypt, int noack)
5025{
5026 struct wpa_driver_nl80211_data *drv = bss->drv;
5027 u64 cookie;
5028
5029 if (drv->use_monitor)
5030 return wpa_driver_nl80211_send_mntr(drv, data, len,
5031 encrypt, noack);
5032
5033 return nl80211_send_frame_cmd(bss, bss->freq, 0, data, len,
5034 &cookie, 0, noack, 0);
5035}
5036
5037
2c2010ac 5038static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
8cfa3527 5039 size_t data_len, int noack)
2c2010ac 5040{
a2e40bb6
FF		 5041 struct i802_bss *bss = priv;
5042 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 5043 struct ieee80211_mgmt *mgmt;
7a47d567 5044 int encrypt = 1;
2c2010ac
JM		 5045 u16 fc;
5046
5047 mgmt = (struct ieee80211_mgmt *) data;
5048 fc = le_to_host16(mgmt->frame_control);
5049
b1f625e0 5050 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 5051 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5052 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
5053 /*
5054 * The use of last_mgmt_freq is a bit of a hack,
5055 * but it works due to the single-threaded nature
5056 * of wpa_supplicant.
5057 */
88df0ef7
JB		 5058 return nl80211_send_frame_cmd(bss, drv->last_mgmt_freq, 0,
5059 data, data_len, NULL, 1, noack,
5060 1);
5582a5d1
JB		 5061 }
5062
61cbe2ff 5063 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
e4fb2167
JB		 5064 return nl80211_send_frame_cmd(bss, bss->freq, 0,
5065 data, data_len, NULL,
5066 0, noack, 0);
86957e62
JM		 5067 }
5068
2c2010ac
JM		 5069 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5070 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
5071 /*
5072 * Only one of the authentication frame types is encrypted.
5073 * In order for static WEP encryption to work properly (i.e.,
5074 * to not encrypt the frame), we need to tell mac80211 about
5075 * the frames that must not be encrypted.
5076 */
5077 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
5078 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 5079 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
5080 encrypt = 0;
2c2010ac
JM		 5081 }
5082
a11241fa 5083 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
fab25336 5084 noack);
2c2010ac
JM		 5085}
5086
5087
31357268 5088static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
e5693c47
JM		 5089 int slot, int ht_opmode, int ap_isolate,
5090 int *basic_rates)
31357268
JM		 5091{
5092 struct wpa_driver_nl80211_data *drv = bss->drv;
5093 struct nl_msg *msg;
5094
5095 msg = nlmsg_alloc();
5096 if (!msg)
5097 return -ENOMEM;
5098
9fb04070 5099 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 5100
5101 if (cts >= 0)
5102 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5103 if (preamble >= 0)
5104 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5105 if (slot >= 0)
5106 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
5107 if (ht_opmode >= 0)
5108 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
d03e8d11
JM		 5109 if (ap_isolate >= 0)
5110 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
e5693c47
JM		 5111
5112 if (basic_rates) {
5113 u8 rates[NL80211_MAX_SUPP_RATES];
5114 u8 rates_len = 0;
5115 int i;
5116
5117 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
5118 i++)
5119 rates[rates_len++] = basic_rates[i] / 5;
5120
5121 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5122 }
5123
31357268
JM		 5124 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5125
5126 return send_and_recv_msgs(drv, msg, NULL, NULL);
5127 nla_put_failure:
5128 return -ENOBUFS;
5129}
5130
5131
19c3b566
JM		 5132static int wpa_driver_nl80211_set_ap(void *priv,
5133 struct wpa_driver_ap_params *params)
d2440ba0 5134{
a2e40bb6
FF		 5135 struct i802_bss *bss = priv;
5136 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 5137 struct nl_msg *msg;
5138 u8 cmd = NL80211_CMD_NEW_BEACON;
5139 int ret;
b4fd6fab 5140 int beacon_set;
8b897f5a 5141 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 5142 int num_suites;
5143 u32 suites[10];
5144 u32 ver;
b4fd6fab 5145
b4fd6fab 5146 beacon_set = bss->beacon_set;
d2440ba0
JM		 5147
5148 msg = nlmsg_alloc();
5149 if (!msg)
5150 return -ENOMEM;
5151
5152 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 5153 beacon_set);
5154 if (beacon_set)
d2440ba0
JM		 5155 cmd = NL80211_CMD_SET_BEACON;
5156
9fb04070 5157 nl80211_cmd(drv, msg, 0, cmd);
19c3b566
JM		 5158 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
5159 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b4fd6fab 5160 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
19c3b566
JM		 5161 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
5162 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
ccb941e6
JM		 5163 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5164 params->ssid);
97a7a0b5
JM		 5165 switch (params->hide_ssid) {
5166 case NO_SSID_HIDING:
5167 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5168 NL80211_HIDDEN_SSID_NOT_IN_USE);
5169 break;
5170 case HIDDEN_SSID_ZERO_LEN:
5171 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5172 NL80211_HIDDEN_SSID_ZERO_LEN);
5173 break;
5174 case HIDDEN_SSID_ZERO_CONTENTS:
5175 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5176 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
5177 break;
5178 }
b11d1d64
JM		 5179 if (params->privacy)
5180 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5181 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
5182 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
5183 /* Leave out the attribute */
5184 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
5185 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5186 NL80211_AUTHTYPE_SHARED_KEY);
5187 else
5188 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5189 NL80211_AUTHTYPE_OPEN_SYSTEM);
5190
5191 ver = 0;
5192 if (params->wpa_version & WPA_PROTO_WPA)
5193 ver |= NL80211_WPA_VERSION_1;
5194 if (params->wpa_version & WPA_PROTO_RSN)
5195 ver |= NL80211_WPA_VERSION_2;
5196 if (ver)
5197 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5198
5199 num_suites = 0;
5200 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
5201 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
5202 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
5203 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
5204 if (num_suites) {
5205 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
5206 num_suites * sizeof(u32), suites);
5207 }
5208
9f12614b
JB		 5209 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
5210 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
5211 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
5212
b11d1d64
JM		 5213 num_suites = 0;
5214 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
5215 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
5216 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
5217 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5218 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
5219 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5220 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
5221 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5222 if (num_suites) {
5223 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5224 num_suites * sizeof(u32), suites);
5225 }
5226
5227 switch (params->group_cipher) {
5228 case WPA_CIPHER_CCMP:
5229 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5230 WLAN_CIPHER_SUITE_CCMP);
5231 break;
5232 case WPA_CIPHER_TKIP:
5233 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5234 WLAN_CIPHER_SUITE_TKIP);
5235 break;
5236 case WPA_CIPHER_WEP104:
5237 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5238 WLAN_CIPHER_SUITE_WEP104);
5239 break;
5240 case WPA_CIPHER_WEP40:
5241 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5242 WLAN_CIPHER_SUITE_WEP40);
5243 break;
5244 }
d2440ba0 5245
fb91db56
JM		 5246 if (params->beacon_ies) {
5247 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
5248 wpabuf_head(params->beacon_ies));
5249 }
5250 if (params->proberesp_ies) {
5251 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
5252 wpabuf_len(params->proberesp_ies),
5253 wpabuf_head(params->proberesp_ies));
5254 }
5255 if (params->assocresp_ies) {
5256 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
5257 wpabuf_len(params->assocresp_ies),
5258 wpabuf_head(params->assocresp_ies));
5259 }
5260
d2440ba0
JM		 5261 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5262 if (ret) {
5263 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
5264 ret, strerror(-ret));
b4fd6fab 5265 } else {
b4fd6fab 5266 bss->beacon_set = 1;
31357268 5267 nl80211_set_bss(bss, params->cts_protect, params->preamble,
d03e8d11 5268 params->short_slot_time, params->ht_opmode,
e5693c47 5269 params->isolate, params->basic_rates);
b4fd6fab 5270 }
d2440ba0
JM		 5271 return ret;
5272 nla_put_failure:
5273 return -ENOBUFS;
5274}
5275
5276
e4fb2167 5277static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
f019981a
JM		 5278 int freq, int ht_enabled,
5279 int sec_channel_offset)
1581b38b 5280{
e4fb2167 5281 struct wpa_driver_nl80211_data *drv = bss->drv;
1581b38b 5282 struct nl_msg *msg;
d2440ba0 5283 int ret;
1581b38b 5284
44dc872e
JM		 5285 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
5286 "sec_channel_offset=%d)",
5287 freq, ht_enabled, sec_channel_offset);
1581b38b
JM		 5288 msg = nlmsg_alloc();
5289 if (!msg)
5290 return -1;
5291
9fb04070 5292 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 5293
5294 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 5295 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5296 if (ht_enabled) {
5297 switch (sec_channel_offset) {
5298 case -1:
5299 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5300 NL80211_CHAN_HT40MINUS);
5301 break;
5302 case 1:
5303 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5304 NL80211_CHAN_HT40PLUS);
5305 break;
5306 default:
5307 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5308 NL80211_CHAN_HT20);
5309 break;
5310 }
5311 }
1581b38b 5312
d2440ba0 5313 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
e4fb2167
JB		 5314 if (ret == 0) {
5315 bss->freq = freq;
1581b38b 5316 return 0;
e4fb2167 5317 }
f019981a
JM		 5318 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
5319 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 5320nla_put_failure:
5321 return -1;
5322}
5323
0f4e8b4f 5324
95ab6063
AN		 5325static u32 sta_flags_nl80211(int flags)
5326{
5327 u32 f = 0;
5328
5329 if (flags & WPA_STA_AUTHORIZED)
5330 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
5331 if (flags & WPA_STA_WMM)
5332 f |= BIT(NL80211_STA_FLAG_WME);
5333 if (flags & WPA_STA_SHORT_PREAMBLE)
5334 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
5335 if (flags & WPA_STA_MFP)
5336 f |= BIT(NL80211_STA_FLAG_MFP);
45b722f1
AN		 5337 if (flags & WPA_STA_TDLS_PEER)
5338 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
95ab6063
AN		 5339
5340 return f;
5341}
5342
5343
62847751 5344static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 5345 struct hostapd_sta_add_params *params)
5346{
a2e40bb6
FF		 5347 struct i802_bss *bss = priv;
5348 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f 5349 struct nl_msg *msg;
95ab6063 5350 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 5351 int ret = -ENOBUFS;
5352
45b722f1
AN		 5353 if ((params->flags & WPA_STA_TDLS_PEER) &&
5354 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
5355 return -EOPNOTSUPP;
5356
0f4e8b4f
JM		 5357 msg = nlmsg_alloc();
5358 if (!msg)
5359 return -ENOMEM;
5360
45b722f1
AN		 5361 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
5362 NL80211_CMD_NEW_STATION);
0f4e8b4f 5363
62847751 5364 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f 5365 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
0f4e8b4f
JM		 5366 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
5367 params->supp_rates);
45b722f1
AN		 5368 if (!params->set) {
5369 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
5370 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
5371 params->listen_interval);
5372 }
0f4e8b4f
JM		 5373 if (params->ht_capabilities) {
5374 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 5375 sizeof(*params->ht_capabilities),
5376 params->ht_capabilities);
0f4e8b4f 5377 }
0f4e8b4f 5378
95ab6063
AN		 5379 os_memset(&upd, 0, sizeof(upd));
5380 upd.mask = sta_flags_nl80211(params->flags);
5381 upd.set = upd.mask;
5382 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5383
0f4e8b4f
JM		 5384 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5385 if (ret)
45b722f1
AN		 5386 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
5387 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
5388 strerror(-ret));
0f4e8b4f
JM		 5389 if (ret == -EEXIST)
5390 ret = 0;
5391 nla_put_failure:
5392 return ret;
5393}
5394
5395
5396static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
5397{
a2e40bb6
FF		 5398 struct i802_bss *bss = priv;
5399 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 5400 struct nl_msg *msg;
5401 int ret;
5402
5403 msg = nlmsg_alloc();
5404 if (!msg)
5405 return -ENOMEM;
5406
9fb04070 5407 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 5408
5409 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5410 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 5411 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5412
5413 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5414 if (ret == -ENOENT)
5415 return 0;
5416 return ret;
5417 nla_put_failure:
5418 return -ENOBUFS;
5419}
5420
1581b38b 5421
0915d02c
JM		 5422static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
5423 int ifidx)
5424{
5425 struct nl_msg *msg;
5426
c6e8e8e4
JM		 5427 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
5428
2135f224
JM		 5429 /* stop listening for EAPOL on this interface */
5430 del_ifidx(drv, ifidx);
2135f224 5431
0915d02c
JM		 5432 msg = nlmsg_alloc();
5433 if (!msg)
5434 goto nla_put_failure;
5435
9fb04070 5436 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 5437 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
5438
5439 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5440 return;
5441 nla_put_failure:
e748062b 5442 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 5443}
5444
5445
a1922f93
JM		 5446static const char * nl80211_iftype_str(enum nl80211_iftype mode)
5447{
5448 switch (mode) {
5449 case NL80211_IFTYPE_ADHOC:
5450 return "ADHOC";
5451 case NL80211_IFTYPE_STATION:
5452 return "STATION";
5453 case NL80211_IFTYPE_AP:
5454 return "AP";
5455 case NL80211_IFTYPE_MONITOR:
5456 return "MONITOR";
5457 case NL80211_IFTYPE_P2P_CLIENT:
5458 return "P2P_CLIENT";
5459 case NL80211_IFTYPE_P2P_GO:
5460 return "P2P_GO";
5461 default:
5462 return "unknown";
5463 }
5464}
5465
5466
a35187e7
KH		 5467static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
5468 const char *ifname,
5469 enum nl80211_iftype iftype,
fbbfcbac 5470 const u8 *addr, int wds)
0915d02c
JM		 5471{
5472 struct nl_msg *msg, *flags = NULL;
5473 int ifidx;
5474 int ret = -ENOBUFS;
5475
a1922f93
JM		 5476 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
5477 iftype, nl80211_iftype_str(iftype));
5478
0915d02c
JM		 5479 msg = nlmsg_alloc();
5480 if (!msg)
5481 return -1;
5482
9fb04070 5483 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
0915d02c
JM		 5484 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5485 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
5486 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
5487
5488 if (iftype == NL80211_IFTYPE_MONITOR) {
5489 int err;
5490
5491 flags = nlmsg_alloc();
5492 if (!flags)
5493 goto nla_put_failure;
5494
5495 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
5496
5497 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
5498
5499 nlmsg_free(flags);
5500
5501 if (err)
5502 goto nla_put_failure;
fbbfcbac
FF		 5503 } else if (wds) {
5504 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 5505 }
5506
5507 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5508 if (ret) {
5509 nla_put_failure:
a35187e7
KH		 5510 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
5511 ifname, ret, strerror(-ret));
0915d02c
JM		 5512 return ret;
5513 }
5514
5515 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 5516 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
5517 ifname, ifidx);
0915d02c
JM		 5518
5519 if (ifidx <= 0)
5520 return -1;
5521
2135f224
JM		 5522 /* start listening for EAPOL on this interface */
5523 add_ifidx(drv, ifidx);
5524
7bfc47c3 5525 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 5526 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 5527 nl80211_remove_iface(drv, ifidx);
5528 return -1;
2135f224 5529 }
2135f224 5530
0915d02c
JM		 5531 return ifidx;
5532}
22a7c9d7
JM		 5533
5534
a35187e7
KH		 5535static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
5536 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 5537 const u8 *addr, int wds)
a35187e7
KH		 5538{
5539 int ret;
5540
fbbfcbac 5541 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 5542
ffbf1eaa 5543 /* if error occurred and interface exists already */
a35187e7
KH		 5544 if (ret == -ENFILE && if_nametoindex(ifname)) {
5545 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
5546
5547 /* Try to remove the interface that was already there. */
5548 nl80211_remove_iface(drv, if_nametoindex(ifname));
5549
5550 /* Try to create the interface again */
fbbfcbac
FF		 5551 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
5552 wds);
a35187e7
KH		 5553 }
5554
b3af99d2 5555 if (ret >= 0 && is_p2p_interface(iftype))
4e5cb1a3
JM		 5556 nl80211_disable_11b_rates(drv, ret, 1);
5557
a35187e7
KH		 5558 return ret;
5559}
0915d02c 5560
2135f224 5561
0915d02c
JM		 5562static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
5563{
5564 struct ieee80211_hdr *hdr;
f8b1f695
JM		 5565 u16 fc;
5566 union wpa_event_data event;
0915d02c
JM		 5567
5568 hdr = (struct ieee80211_hdr *) buf;
5569 fc = le_to_host16(hdr->frame_control);
5570
f8b1f695
JM		 5571 os_memset(&event, 0, sizeof(event));
5572 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
5573 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
5574 event.tx_status.dst = hdr->addr1;
5575 event.tx_status.data = buf;
5576 event.tx_status.data_len = len;
5577 event.tx_status.ack = ok;
5578 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 5579}
5580
5581
4b9841d3 5582static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 5583 u8 *buf, size_t len)
0915d02c 5584{
9b90955e
JB		 5585 struct ieee80211_hdr *hdr = (void *)buf;
5586 u16 fc;
f8b1f695 5587 union wpa_event_data event;
9b90955e
JB		 5588
5589 if (len < sizeof(*hdr))
5590 return;
5591
5592 fc = le_to_host16(hdr->frame_control);
5593
f8b1f695 5594 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 5595 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
5596 event.rx_from_unknown.addr = hdr->addr2;
5597 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
5598 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 5599 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 5600}
0915d02c 5601
4b9841d3
JM		 5602
5603static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 5604 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 5605{
5606 struct ieee80211_hdr *hdr;
f8b1f695
JM		 5607 u16 fc;
5608 union wpa_event_data event;
0915d02c
JM		 5609
5610 hdr = (struct ieee80211_hdr *) buf;
5611 fc = le_to_host16(hdr->frame_control);
0915d02c 5612
4b9841d3 5613 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 5614 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 5615 os_memset(&event, 0, sizeof(event));
5616 event.rx_mgmt.frame = buf;
5617 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 5618 event.rx_mgmt.datarate = datarate;
5619 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 5620 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 5621 break;
5622 case WLAN_FC_TYPE_CTRL:
5623 /* can only get here with PS-Poll frames */
5624 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 5625 from_unknown_sta(drv, buf, len);
0915d02c
JM		 5626 break;
5627 case WLAN_FC_TYPE_DATA:
0d9fc3d8 5628 from_unknown_sta(drv, buf, len);
0915d02c
JM		 5629 break;
5630 }
5631}
5632
5633
5634static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
5635{
5636 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5637 int len;
5638 unsigned char buf[3000];
5639 struct ieee80211_radiotap_iterator iter;
5640 int ret;
2a8b7416 5641 int datarate = 0, ssi_signal = 0;
4b9841d3 5642 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 5643
5644 len = recv(sock, buf, sizeof(buf), 0);
5645 if (len < 0) {
5646 perror("recv");
5647 return;
5648 }
5649
5650 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
5651 printf("received invalid radiotap frame\n");
5652 return;
5653 }
5654
0915d02c
JM		 5655 while (1) {
5656 ret = ieee80211_radiotap_iterator_next(&iter);
5657 if (ret == -ENOENT)
5658 break;
5659 if (ret) {
5660 printf("received invalid radiotap frame (%d)\n", ret);
5661 return;
5662 }
5663 switch (iter.this_arg_index) {
5664 case IEEE80211_RADIOTAP_FLAGS:
5665 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
5666 len -= 4;
5667 break;
5668 case IEEE80211_RADIOTAP_RX_FLAGS:
5669 rxflags = 1;
5670 break;
5671 case IEEE80211_RADIOTAP_TX_FLAGS:
5672 injected = 1;
5673 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
5674 IEEE80211_RADIOTAP_F_TX_FAIL;
5675 break;
5676 case IEEE80211_RADIOTAP_DATA_RETRIES:
5677 break;
5678 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 5679 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 5680 break;
5681 case IEEE80211_RADIOTAP_RATE:
2a8b7416 5682 datarate = *iter.this_arg * 5;
0915d02c
JM		 5683 break;
5684 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2a8b7416 5685 ssi_signal = *iter.this_arg;
0915d02c
JM		 5686 break;
5687 }
5688 }
5689
5690 if (rxflags && injected)
5691 return;
5692
5693 if (!injected)
4b9841d3 5694 handle_frame(drv, buf + iter.max_length,
2a8b7416 5695 len - iter.max_length, datarate, ssi_signal);
0915d02c 5696 else
4b9841d3
JM		 5697 handle_tx_callback(drv->ctx, buf + iter.max_length,
5698 len - iter.max_length, !failed);
0915d02c
JM		 5699}
5700
5701
5702/*
5703 * we post-process the filter code later and rewrite
5704 * this to the offset to the last instruction
5705 */
5706#define PASS 0xFF
5707#define FAIL 0xFE
5708
5709static struct sock_filter msock_filter_insns[] = {
5710 /*
5711 * do a little-endian load of the radiotap length field
5712 */
5713 /* load lower byte into A */
5714 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
5715 /* put it into X (== index register) */
5716 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5717 /* load upper byte into A */
5718 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
5719 /* left-shift it by 8 */
5720 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
5721 /* or with X */
5722 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
5723 /* put result into X */
5724 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5725
5726 /*
5727 * Allow management frames through, this also gives us those
5728 * management frames that we sent ourselves with status
5729 */
5730 /* load the lower byte of the IEEE 802.11 frame control field */
5731 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5732 /* mask off frame type and version */
5733 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
5734 /* accept frame if it's both 0, fall through otherwise */
5735 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
5736
5737 /*
5738 * TODO: add a bit to radiotap RX flags that indicates
5739 * that the sending station is not associated, then
5740 * add a filter here that filters on our DA and that flag
5741 * to allow us to deauth frames to that bad station.
5742 *
65ae1afd 5743 * For now allow all To DS data frames through.
0915d02c 5744 */
65ae1afd
HS		 5745 /* load the IEEE 802.11 frame control field */
5746 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
5747 /* mask off frame type, version and DS status */
5748 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
5749 /* accept frame if version 0, type 2 and To DS, fall through otherwise
5750 */
5751 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 5752
5753#if 0
5754 /*
fbbfcbac 5755 * drop non-data frames
0915d02c
JM		 5756 */
5757 /* load the lower byte of the frame control field */
5758 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5759 /* mask off QoS bit */
5760 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
5761 /* drop non-data frames */
5762 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 5763#endif
0915d02c 5764 /* load the upper byte of the frame control field */
fbbfcbac 5765 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 5766 /* mask off toDS/fromDS */
5767 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 5768 /* accept WDS frames */
5769 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 5770
5771 /*
5772 * add header length to index
5773 */
5774 /* load the lower byte of the frame control field */
5775 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5776 /* mask off QoS bit */
5777 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
5778 /* right shift it by 6 to give 0 or 2 */
5779 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
5780 /* add data frame header length */
5781 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
5782 /* add index, was start of 802.11 header */
5783 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
5784 /* move to index, now start of LL header */
5785 BPF_STMT(BPF_MISC | BPF_TAX, 0),
5786
5787 /*
5788 * Accept empty data frames, we use those for
5789 * polling activity.
5790 */
5791 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
5792 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
5793
5794 /*
5795 * Accept EAPOL frames
5796 */
5797 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
5798 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
5799 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
5800 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
5801
5802 /* keep these last two statements or change the code below */
5803 /* return 0 == "DROP" */
5804 BPF_STMT(BPF_RET | BPF_K, 0),
5805 /* return ~0 == "keep all" */
5806 BPF_STMT(BPF_RET | BPF_K, ~0),
5807};
5808
5809static struct sock_fprog msock_filter = {
5810 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
5811 .filter = msock_filter_insns,
5812};
5813
5814
5815static int add_monitor_filter(int s)
5816{
5817 int idx;
5818
5819 /* rewrite all PASS/FAIL jump offsets */
5820 for (idx = 0; idx < msock_filter.len; idx++) {
5821 struct sock_filter *insn = &msock_filter_insns[idx];
5822
5823 if (BPF_CLASS(insn->code) == BPF_JMP) {
5824 if (insn->code == (BPF_JMP|BPF_JA)) {
5825 if (insn->k == PASS)
5826 insn->k = msock_filter.len - idx - 2;
5827 else if (insn->k == FAIL)
5828 insn->k = msock_filter.len - idx - 3;
5829 }
5830
5831 if (insn->jt == PASS)
5832 insn->jt = msock_filter.len - idx - 2;
5833 else if (insn->jt == FAIL)
5834 insn->jt = msock_filter.len - idx - 3;
5835
5836 if (insn->jf == PASS)
5837 insn->jf = msock_filter.len - idx - 2;
5838 else if (insn->jf == FAIL)
5839 insn->jf = msock_filter.len - idx - 3;
5840 }
5841 }
5842
5843 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
5844 &msock_filter, sizeof(msock_filter))) {
5845 perror("SO_ATTACH_FILTER");
5846 return -1;
5847 }
5848
5849 return 0;
5850}
5851
5852
460456f8
JM		 5853static void nl80211_remove_monitor_interface(
5854 struct wpa_driver_nl80211_data *drv)
5855{
3fd1cefb
JB		 5856 drv->monitor_refcount--;
5857 if (drv->monitor_refcount > 0)
5858 return;
5859
460456f8
JM		 5860 if (drv->monitor_ifidx >= 0) {
5861 nl80211_remove_iface(drv, drv->monitor_ifidx);
5862 drv->monitor_ifidx = -1;
5863 }
504e905c
JM		 5864 if (drv->monitor_sock >= 0) {
5865 eloop_unregister_read_sock(drv->monitor_sock);
5866 close(drv->monitor_sock);
5867 drv->monitor_sock = -1;
5868 }
460456f8
JM		 5869}
5870
5871
0915d02c
JM		 5872static int
5873nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
5874{
5875 char buf[IFNAMSIZ];
5876 struct sockaddr_ll ll;
5877 int optval;
5878 socklen_t optlen;
0915d02c 5879
3fd1cefb
JB		 5880 if (drv->monitor_ifidx >= 0) {
5881 drv->monitor_refcount++;
5882 return 0;
5883 }
5884
6758b167
JJ		 5885 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
5886 /*
5887 * P2P interface name is of the format p2p-%s-%d. For monitor
5888 * interface name corresponding to P2P GO, replace "p2p-" with
5889 * "mon-" to retain the same interface name length and to
5890 * indicate that it is a monitor interface.
5891 */
5892 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
5893 } else {
5894 /* Non-P2P interface with AP functionality. */
5895 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
5896 }
5897
0915d02c
JM		 5898 buf[IFNAMSIZ - 1] = '\0';
5899
5900 drv->monitor_ifidx =
fbbfcbac
FF		 5901 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
5902 0);
0915d02c 5903
866af8b6 5904 if (drv->monitor_ifidx == -EOPNOTSUPP) {
61cbe2ff
JB		 5905 /*
5906 * This is backward compatibility for a few versions of
5907 * the kernel only that didn't advertise the right
5908 * attributes for the only driver that then supported
5909 * AP mode w/o monitor -- ath6kl.
5910 */
866af8b6
JM		 5911 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
5912 "monitor interface type - try to run without it");
61cbe2ff 5913 drv->device_ap_sme = 1;
866af8b6
JM		 5914 }
5915
0915d02c
JM		 5916 if (drv->monitor_ifidx < 0)
5917 return -1;
5918
c81eff1a 5919 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 5920 goto error;
0915d02c
JM		 5921
5922 memset(&ll, 0, sizeof(ll));
5923 ll.sll_family = AF_PACKET;
5924 ll.sll_ifindex = drv->monitor_ifidx;
5925 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
5926 if (drv->monitor_sock < 0) {
5927 perror("socket[PF_PACKET,SOCK_RAW]");
5928 goto error;
5929 }
5930
5931 if (add_monitor_filter(drv->monitor_sock)) {
5932 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
5933 "interface; do filtering in user space");
5934 /* This works, but will cost in performance. */
5935 }
5936
2135f224 5937 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 5938 perror("monitor socket bind");
5939 goto error;
5940 }
5941
5942 optlen = sizeof(optval);
5943 optval = 20;
5944 if (setsockopt
5945 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
5946 perror("Failed to set socket priority");
5947 goto error;
5948 }
5949
5950 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
5951 drv, NULL)) {
5952 printf("Could not register monitor read socket\n");
5953 goto error;
5954 }
5955
5956 return 0;
5957 error:
460456f8 5958 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 5959 return -1;
5960}
5961
db149ac9 5962
3fd1cefb
JB		 5963static int nl80211_setup_ap(struct i802_bss *bss)
5964{
5965 struct wpa_driver_nl80211_data *drv = bss->drv;
5966
a11241fa
JB		 5967 /*
5968 * Disable Probe Request reporting unless we need it in this way for
5969 * devices that include the AP SME, in the other case (unless using
5970 * monitor iface) we'll get it through the nl_mgmt socket instead.
5971 */
5972 if (!drv->device_ap_sme)
5973 wpa_driver_nl80211_probe_req_report(bss, 0);
5974
5975 if (!drv->device_ap_sme && !drv->use_monitor)
5976 if (nl80211_mgmt_subscribe_ap(bss))
5977 return -1;
5978
5979 if (!drv->device_ap_sme && drv->use_monitor &&
3fd1cefb
JB		 5980 nl80211_create_monitor_interface(drv) &&
5981 !drv->device_ap_sme)
5982 return -1;
5983
5984 if (drv->device_ap_sme &&
5985 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
5986 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
5987 "Probe Request frame reporting in AP mode");
5988 /* Try to survive without this */
5989 }
5990
5991 return 0;
5992}
5993
5994
5995static void nl80211_teardown_ap(struct i802_bss *bss)
5996{
5997 struct wpa_driver_nl80211_data *drv = bss->drv;
5998
5999 if (drv->device_ap_sme)
6000 wpa_driver_nl80211_probe_req_report(bss, 0);
a11241fa 6001 else if (drv->use_monitor)
3fd1cefb 6002 nl80211_remove_monitor_interface(drv);
a11241fa
JB		 6003 else
6004 nl80211_mgmt_unsubscribe(bss);
6005
3fd1cefb
JB		 6006 bss->beacon_set = 0;
6007}
6008
6009
f10bfc9a
JM		 6010static int nl80211_send_eapol_data(struct i802_bss *bss,
6011 const u8 *addr, const u8 *data,
d12dab4c 6012 size_t data_len)
f10bfc9a 6013{
d12dab4c
JB		 6014 struct sockaddr_ll ll;
6015 int ret;
6016
6017 if (bss->drv->eapol_tx_sock < 0) {
6018 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
f10bfc9a
JM		 6019 return -1;
6020 }
6021
d12dab4c
JB		 6022 os_memset(&ll, 0, sizeof(ll));
6023 ll.sll_family = AF_PACKET;
6024 ll.sll_ifindex = bss->ifindex;
6025 ll.sll_protocol = htons(ETH_P_PAE);
6026 ll.sll_halen = ETH_ALEN;
6027 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
6028 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
6029 (struct sockaddr *) &ll, sizeof(ll));
6030 if (ret < 0)
6031 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
6032 strerror(errno));
6033
6034 return ret;
f10bfc9a 6035}
5fb1a232 6036
f10bfc9a 6037
db149ac9
JM		 6038static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
6039
6040static int wpa_driver_nl80211_hapd_send_eapol(
6041 void *priv, const u8 *addr, const u8 *data,
4378fc14 6042 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 6043{
a2e40bb6
FF		 6044 struct i802_bss *bss = priv;
6045 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 6046 struct ieee80211_hdr *hdr;
6047 size_t len;
6048 u8 *pos;
6049 int res;
4378fc14 6050 int qos = flags & WPA_STA_WMM;
db149ac9 6051
a11241fa 6052 if (drv->device_ap_sme || !drv->use_monitor)
d12dab4c 6053 return nl80211_send_eapol_data(bss, addr, data, data_len);
f10bfc9a 6054
db149ac9
JM		 6055 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
6056 data_len;
6057 hdr = os_zalloc(len);
6058 if (hdr == NULL) {
6059 printf("malloc() failed for i802_send_data(len=%lu)\n",
6060 (unsigned long) len);
6061 return -1;
6062 }
6063
6064 hdr->frame_control =
6065 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
6066 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
6067 if (encrypt)
6068 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 6069 if (qos) {
6070 hdr->frame_control |=
6071 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
6072 }
db149ac9
JM		 6073
6074 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
6075 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
6076 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
6077 pos = (u8 *) (hdr + 1);
6078
db149ac9
JM		 6079 if (qos) {
6080 /* add an empty QoS header if needed */
6081 pos[0] = 0;
6082 pos[1] = 0;
6083 pos += 2;
6084 }
db149ac9
JM		 6085
6086 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
6087 pos += sizeof(rfc1042_header);
6088 WPA_PUT_BE16(pos, ETH_P_PAE);
6089 pos += 2;
6090 memcpy(pos, data, data_len);
6091
a11241fa 6092 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0);
db149ac9
JM		 6093 if (res < 0) {
6094 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
6095 "failed: %d (%s)",
6096 (unsigned long) len, errno, strerror(errno));
6097 }
7bf12757 6098 os_free(hdr);
db149ac9
JM		 6099
6100 return res;
6101}
6102
a8d6ffa4 6103
3234cba4
JM		 6104static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
6105 int total_flags,
4c32757d 6106 int flags_or, int flags_and)
a8d6ffa4 6107{
a2e40bb6
FF		 6108 struct i802_bss *bss = priv;
6109 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 6110 struct nl_msg *msg, *flags = NULL;
7e76ee9c 6111 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 6112
6113 msg = nlmsg_alloc();
6114 if (!msg)
6115 return -ENOMEM;
6116
6117 flags = nlmsg_alloc();
6118 if (!flags) {
6119 nlmsg_free(msg);
6120 return -ENOMEM;
6121 }
6122
9fb04070 6123 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 6124
6125 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 6126 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 6127 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6128
7e76ee9c
JM		 6129 /*
6130 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
6131 * can be removed eventually.
6132 */
0de39516 6133 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 6134 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
6135
0de39516 6136 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 6137 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
6138
0de39516 6139 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 6140 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
6141
0de39516 6142 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 6143 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
6144
45b722f1
AN		 6145 if (total_flags & WPA_STA_TDLS_PEER)
6146 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER);
6147
a8d6ffa4
JM		 6148 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
6149 goto nla_put_failure;
6150
7e76ee9c
JM		 6151 os_memset(&upd, 0, sizeof(upd));
6152 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
6153 upd.set = sta_flags_nl80211(flags_or);
6154 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6155
a8d6ffa4
JM		 6156 nlmsg_free(flags);
6157
6158 return send_and_recv_msgs(drv, msg, NULL, NULL);
6159 nla_put_failure:
6160 nlmsg_free(flags);
6161 return -ENOBUFS;
6162}
6163
0915d02c 6164
1581b38b
JM		 6165static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
6166 struct wpa_driver_associate_params *params)
6167{
b1f625e0
EP		 6168 enum nl80211_iftype nlmode;
6169
6170 if (params->p2p) {
046b26a2
JM		 6171 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
6172 "group (GO)");
b1f625e0
EP		 6173 nlmode = NL80211_IFTYPE_P2P_GO;
6174 } else
6175 nlmode = NL80211_IFTYPE_AP;
6176
6177 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
e4fb2167 6178 wpa_driver_nl80211_set_freq(&drv->first_bss, params->freq, 0, 0)) {
460456f8 6179 nl80211_remove_monitor_interface(drv);
1581b38b 6180 return -1;
0915d02c 6181 }
1581b38b 6182
1581b38b
JM		 6183 return 0;
6184}
1581b38b
JM		 6185
6186
5cc4d64b
JM		 6187static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
6188{
6189 struct nl_msg *msg;
6190 int ret = -1;
6191
6192 msg = nlmsg_alloc();
6193 if (!msg)
6194 return -1;
6195
9fb04070 6196 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 6197 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6198 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6199 msg = NULL;
6200 if (ret) {
6201 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
6202 "(%s)", ret, strerror(-ret));
6203 goto nla_put_failure;
6204 }
6205
6206 ret = 0;
6207 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
6208
6209nla_put_failure:
6210 nlmsg_free(msg);
6211 return ret;
6212}
6213
6214
6215static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
6216 struct wpa_driver_associate_params *params)
6217{
6218 struct nl_msg *msg;
6219 int ret = -1;
6220 int count = 0;
6221
6222 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
6223
b1f625e0
EP		 6224 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
6225 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 6226 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
6227 "IBSS mode");
6228 return -1;
6229 }
6230
6231retry:
6232 msg = nlmsg_alloc();
6233 if (!msg)
6234 return -1;
6235
9fb04070 6236 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 6237 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6238
6239 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
6240 goto nla_put_failure;
6241
6242 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6243 params->ssid, params->ssid_len);
6244 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6245 params->ssid);
6246 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6247 drv->ssid_len = params->ssid_len;
6248
6249 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6250 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6251
6252 ret = nl80211_set_conn_keys(params, msg);
6253 if (ret)
6254 goto nla_put_failure;
6255
a95795ad
JM		 6256 if (params->wpa_ie) {
6257 wpa_hexdump(MSG_DEBUG,
6258 " * Extra IEs for Beacon/Probe Response frames",
6259 params->wpa_ie, params->wpa_ie_len);
6260 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6261 params->wpa_ie);
6262 }
6263
5cc4d64b
JM		 6264 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6265 msg = NULL;
6266 if (ret) {
6267 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
6268 ret, strerror(-ret));
6269 count++;
6270 if (ret == -EALREADY && count == 1) {
6271 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
6272 "forced leave");
6273 nl80211_leave_ibss(drv);
6274 nlmsg_free(msg);
6275 goto retry;
6276 }
6277
6278 goto nla_put_failure;
6279 }
6280 ret = 0;
6281 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
6282
6283nla_put_failure:
6284 nlmsg_free(msg);
6285 return ret;
6286}
6287
6288
20f5a4c2
JM		 6289static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv,
6290 u8 *bssid)
6291{
6292 struct nl_msg *msg;
6293 int ret;
6294 struct nl80211_bss_info_arg arg;
6295
6296 os_memset(&arg, 0, sizeof(arg));
6297 msg = nlmsg_alloc();
6298 if (!msg)
6299 goto nla_put_failure;
6300
9fb04070 6301 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
20f5a4c2
JM		 6302 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6303
6304 arg.drv = drv;
6305 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
6306 msg = NULL;
6307 if (ret == 0) {
6308 if (is_zero_ether_addr(arg.assoc_bssid))
6309 return -ENOTCONN;
6310 os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN);
6311 return 0;
6312 }
6313 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
6314 "(%s)", ret, strerror(-ret));
6315nla_put_failure:
6316 nlmsg_free(msg);
6317 return drv->assoc_freq;
6318}
6319
6320
6321static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
6322 const u8 *bssid)
6323{
6324 u8 addr[ETH_ALEN];
6325
6326 if (bssid == NULL) {
6327 int res = nl80211_get_assoc_bssid(drv, addr);
6328 if (res)
6329 return res;
6330 bssid = addr;
6331 }
6332
6333 return wpa_driver_nl80211_disconnect(drv, bssid,
6334 WLAN_REASON_PREV_AUTH_NOT_VALID);
6335}
6336
6337
cfaab580
ZY		 6338static int wpa_driver_nl80211_connect(
6339 struct wpa_driver_nl80211_data *drv,
6340 struct wpa_driver_associate_params *params)
6341{
6342 struct nl_msg *msg;
6343 enum nl80211_auth_type type;
6344 int ret = 0;
3f360238 6345 int algs;
cfaab580
ZY		 6346
6347 msg = nlmsg_alloc();
6348 if (!msg)
6349 return -1;
6350
6351 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 6352 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 6353
6354 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6355 if (params->bssid) {
6356 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6357 MAC2STR(params->bssid));
6358 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6359 }
6360 if (params->freq) {
6361 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6362 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6363 }
6364 if (params->ssid) {
6365 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6366 params->ssid, params->ssid_len);
6367 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6368 params->ssid);
6369 if (params->ssid_len > sizeof(drv->ssid))
6370 goto nla_put_failure;
6371 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6372 drv->ssid_len = params->ssid_len;
6373 }
6374 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6375 if (params->wpa_ie)
6376 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6377 params->wpa_ie);
6378
3f360238
JM		 6379 algs = 0;
6380 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
6381 algs++;
6382 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
6383 algs++;
6384 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
6385 algs++;
6386 if (algs > 1) {
6387 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
6388 "selection");
6389 goto skip_auth_type;
6390 }
6391
abd9fafa 6392 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 6393 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 6394 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 6395 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 6396 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 6397 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 6398 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 6399 type = NL80211_AUTHTYPE_FT;
6400 else
6401 goto nla_put_failure;
6402
6403 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
6404 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
6405
3f360238 6406skip_auth_type:
64fa840a
JM		 6407 if (params->wpa_proto) {
6408 enum nl80211_wpa_versions ver = 0;
cfaab580 6409
64fa840a
JM		 6410 if (params->wpa_proto & WPA_PROTO_WPA)
6411 ver |= NL80211_WPA_VERSION_1;
6412 if (params->wpa_proto & WPA_PROTO_RSN)
6413 ver |= NL80211_WPA_VERSION_2;
cfaab580 6414
64fa840a 6415 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 6416 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6417 }
6418
6419 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 6420 int cipher;
cfaab580
ZY		 6421
6422 switch (params->pairwise_suite) {
6423 case CIPHER_WEP40:
6424 cipher = WLAN_CIPHER_SUITE_WEP40;
6425 break;
6426 case CIPHER_WEP104:
6427 cipher = WLAN_CIPHER_SUITE_WEP104;
6428 break;
6429 case CIPHER_CCMP:
6430 cipher = WLAN_CIPHER_SUITE_CCMP;
6431 break;
6432 case CIPHER_TKIP:
6433 default:
6434 cipher = WLAN_CIPHER_SUITE_TKIP;
6435 break;
6436 }
6437 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6438 }
6439
6440 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 6441 int cipher;
cfaab580
ZY		 6442
6443 switch (params->group_suite) {
6444 case CIPHER_WEP40:
6445 cipher = WLAN_CIPHER_SUITE_WEP40;
6446 break;
6447 case CIPHER_WEP104:
6448 cipher = WLAN_CIPHER_SUITE_WEP104;
6449 break;
6450 case CIPHER_CCMP:
6451 cipher = WLAN_CIPHER_SUITE_CCMP;
6452 break;
6453 case CIPHER_TKIP:
6454 default:
6455 cipher = WLAN_CIPHER_SUITE_TKIP;
6456 break;
6457 }
6458 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6459 }
6460
6461 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6462 params->key_mgmt_suite == KEY_MGMT_PSK) {
6463 int mgmt = WLAN_AKM_SUITE_PSK;
6464
6465 switch (params->key_mgmt_suite) {
6466 case KEY_MGMT_802_1X:
6467 mgmt = WLAN_AKM_SUITE_8021X;
6468 break;
6469 case KEY_MGMT_PSK:
6470 default:
6471 mgmt = WLAN_AKM_SUITE_PSK;
6472 break;
6473 }
6474 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
6475 }
6476
6477 ret = nl80211_set_conn_keys(params, msg);
6478 if (ret)
6479 goto nla_put_failure;
6480
6481 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6482 msg = NULL;
6483 if (ret) {
6484 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
6485 "(%s)", ret, strerror(-ret));
20f5a4c2
JM		 6486 /*
6487 * cfg80211 does not currently accept new connection if we are
6488 * already connected. As a workaround, force disconnection and
6489 * try again once the driver indicates it completed
6490 * disconnection.
6491 */
6492 if (ret == -EALREADY)
6493 nl80211_disconnect(drv, params->bssid);
cfaab580
ZY		 6494 goto nla_put_failure;
6495 }
6496 ret = 0;
6497 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
6498
6499nla_put_failure:
6500 nlmsg_free(msg);
6501 return ret;
6502
6503}
6504
6505
c2a04078
JM		 6506static int wpa_driver_nl80211_associate(
6507 void *priv, struct wpa_driver_associate_params *params)
6508{
a2e40bb6
FF		 6509 struct i802_bss *bss = priv;
6510 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 6511 int ret = -1;
6512 struct nl_msg *msg;
6513
5cc4d64b 6514 if (params->mode == IEEE80211_MODE_AP)
1581b38b 6515 return wpa_driver_nl80211_ap(drv, params);
1581b38b 6516
5cc4d64b
JM		 6517 if (params->mode == IEEE80211_MODE_IBSS)
6518 return wpa_driver_nl80211_ibss(drv, params);
6519
4a867032 6520 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 6521 enum nl80211_iftype nlmode = params->p2p ?
6522 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
6523
6524 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 6525 return -1;
cfaab580 6526 return wpa_driver_nl80211_connect(drv, params);
4a867032 6527 }
cfaab580 6528
c2a04078
JM		 6529 drv->associated = 0;
6530
6531 msg = nlmsg_alloc();
6532 if (!msg)
6533 return -1;
6534
6535 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
6536 drv->ifindex);
9fb04070 6537 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 6538
6539 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6540 if (params->bssid) {
6541 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6542 MAC2STR(params->bssid));
6543 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6544 }
6545 if (params->freq) {
6546 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6547 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 6548 drv->assoc_freq = params->freq;
6549 } else
6550 drv->assoc_freq = 0;
c2a04078
JM		 6551 if (params->ssid) {
6552 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6553 params->ssid, params->ssid_len);
6554 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6555 params->ssid);
fd05d64e
JM		 6556 if (params->ssid_len > sizeof(drv->ssid))
6557 goto nla_put_failure;
6558 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6559 drv->ssid_len = params->ssid_len;
c2a04078
JM		 6560 }
6561 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6562 if (params->wpa_ie)
6563 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6564 params->wpa_ie);
6565
aca01605
JM		 6566 if (params->pairwise_suite != CIPHER_NONE) {
6567 int cipher;
6568
6569 switch (params->pairwise_suite) {
6570 case CIPHER_WEP40:
6571 cipher = WLAN_CIPHER_SUITE_WEP40;
6572 break;
6573 case CIPHER_WEP104:
6574 cipher = WLAN_CIPHER_SUITE_WEP104;
6575 break;
6576 case CIPHER_CCMP:
6577 cipher = WLAN_CIPHER_SUITE_CCMP;
6578 break;
6579 case CIPHER_TKIP:
6580 default:
6581 cipher = WLAN_CIPHER_SUITE_TKIP;
6582 break;
6583 }
79c3124c 6584 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 6585 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6586 }
6587
6588 if (params->group_suite != CIPHER_NONE) {
6589 int cipher;
6590
6591 switch (params->group_suite) {
6592 case CIPHER_WEP40:
6593 cipher = WLAN_CIPHER_SUITE_WEP40;
6594 break;
6595 case CIPHER_WEP104:
6596 cipher = WLAN_CIPHER_SUITE_WEP104;
6597 break;
6598 case CIPHER_CCMP:
6599 cipher = WLAN_CIPHER_SUITE_CCMP;
6600 break;
6601 case CIPHER_TKIP:
6602 default:
6603 cipher = WLAN_CIPHER_SUITE_TKIP;
6604 break;
6605 }
79c3124c 6606 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 6607 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6608 }
6609
e572fa33
JM		 6610#ifdef CONFIG_IEEE80211W
6611 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
6612 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
6613#endif /* CONFIG_IEEE80211W */
6614
01652550
JM		 6615 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
6616
62fa124c
JM		 6617 if (params->prev_bssid) {
6618 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
6619 MAC2STR(params->prev_bssid));
6620 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
6621 params->prev_bssid);
6622 }
6623
046b26a2
JM		 6624 if (params->p2p)
6625 wpa_printf(MSG_DEBUG, " * P2P group");
6626
c2a04078
JM		 6627 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6628 msg = NULL;
6629 if (ret) {
3b7ea880
BG		 6630 wpa_dbg(drv->ctx, MSG_DEBUG,
6631 "nl80211: MLME command failed (assoc): ret=%d (%s)",
6632 ret, strerror(-ret));
8856462d 6633 nl80211_dump_scan(drv);
c2a04078
JM		 6634 goto nla_put_failure;
6635 }
6636 ret = 0;
6637 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
6638 "successfully");
6639
6640nla_put_failure:
6641 nlmsg_free(msg);
6642 return ret;
6643}
3f5285e8
JM		 6644
6645
ad1e68e6 6646static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 6647 int ifindex, enum nl80211_iftype mode)
3f5285e8 6648{
3f5285e8 6649 struct nl_msg *msg;
ad1e68e6
JM		 6650 int ret = -ENOBUFS;
6651
a1922f93
JM		 6652 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
6653 ifindex, mode, nl80211_iftype_str(mode));
6654
ad1e68e6
JM		 6655 msg = nlmsg_alloc();
6656 if (!msg)
6657 return -ENOMEM;
6658
9fb04070 6659 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
ad1e68e6
JM		 6660 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6661 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
6662
6663 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6664 if (!ret)
6665 return 0;
6666nla_put_failure:
6667 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
6668 " %d (%s)", ifindex, mode, ret, strerror(-ret));
6669 return ret;
6670}
6671
6672
b1f625e0
EP		 6673static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
6674 enum nl80211_iftype nlmode)
ad1e68e6 6675{
a2e40bb6 6676 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 6677 int ret = -1;
26af9dca 6678 int i;
86957e62 6679 int was_ap = is_ap_interface(drv->nlmode);
1581b38b 6680
ad1e68e6
JM		 6681 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
6682 drv->nlmode = nlmode;
460456f8
JM		 6683 ret = 0;
6684 goto done;
ad1e68e6 6685 }
3f5285e8 6686
460456f8 6687 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 6688 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
6689 "requested mode - ignore error");
460456f8
JM		 6690 ret = 0;
6691 goto done; /* Already in the requested mode */
6692 }
3f5285e8 6693
3f5285e8
JM		 6694 /* mac80211 doesn't allow mode changes while the device is up, so
6695 * take the device down, try to set the mode again, and bring the
6696 * device back up.
6697 */
26af9dca
JM		 6698 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
6699 "interface down");
6700 for (i = 0; i < 10; i++) {
6e8183d7 6701 int res;
c81eff1a
BG		 6702 res = linux_set_iface_flags(drv->global->ioctl_sock,
6703 bss->ifname, 0);
6e8183d7
JM		 6704 if (res == -EACCES || res == -ENODEV)
6705 break;
6706 if (res == 0) {
26af9dca
JM		 6707 /* Try to set the mode again while the interface is
6708 * down */
6709 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 6710 if (ret == -EACCES)
6711 break;
c81eff1a 6712 res = linux_set_iface_flags(drv->global->ioctl_sock,
6e8183d7
JM		 6713 bss->ifname, 1);
6714 if (res && !ret)
26af9dca 6715 ret = -1;
6e8183d7 6716 else if (ret != -EBUSY)
26af9dca
JM		 6717 break;
6718 } else
6719 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
6720 "interface down");
6721 os_sleep(0, 100000);
3f5285e8
JM		 6722 }
6723
c6e8e8e4
JM		 6724 if (!ret) {
6725 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
6726 "interface is down");
ad1e68e6 6727 drv->nlmode = nlmode;
7d9c3698 6728 drv->ignore_if_down_event = 1;
c6e8e8e4 6729 }
ad1e68e6 6730
460456f8 6731done:
3fd1cefb
JB		 6732 if (ret) {
6733 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
6734 "from %d failed", nlmode, drv->nlmode);
6735 return ret;
6736 }
6737
6738 if (is_ap_interface(nlmode)) {
a11241fa 6739 nl80211_mgmt_unsubscribe(bss);
460456f8 6740 /* Setup additional AP mode functionality if needed */
3fd1cefb 6741 if (nl80211_setup_ap(bss))
460456f8 6742 return -1;
3fd1cefb 6743 } else if (was_ap) {
460456f8 6744 /* Remove additional AP mode functionality */
3fd1cefb 6745 nl80211_teardown_ap(bss);
a11241fa
JB		 6746 } else {
6747 nl80211_mgmt_unsubscribe(bss);
460456f8 6748 }
460456f8 6749
a11241fa
JB		 6750 if (!is_ap_interface(nlmode) &&
6751 nl80211_mgmt_subscribe_non_ap(bss) < 0)
6752 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
6753 "frame processing - ignore for now");
08359050 6754
3fd1cefb 6755 return 0;
3f5285e8
JM		 6756}
6757
6758
3f5285e8
JM		 6759static int wpa_driver_nl80211_get_capa(void *priv,
6760 struct wpa_driver_capa *capa)
6761{
a2e40bb6
FF		 6762 struct i802_bss *bss = priv;
6763 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 6764 if (!drv->has_capability)
6765 return -1;
6766 os_memcpy(capa, &drv->capa, sizeof(*capa));
6767 return 0;
6768}
6769
6770
6771static int wpa_driver_nl80211_set_operstate(void *priv, int state)
6772{
a2e40bb6
FF		 6773 struct i802_bss *bss = priv;
6774 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 6775
6776 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
6777 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
6778 drv->operstate = state;
36d84860 6779 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 6780 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 6781}
6782
01652550
JM		 6783
6784static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
6785{
a2e40bb6
FF		 6786 struct i802_bss *bss = priv;
6787 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 6788 struct nl_msg *msg;
6789 struct nl80211_sta_flag_update upd;
6790
6791 msg = nlmsg_alloc();
6792 if (!msg)
6793 return -ENOMEM;
6794
9fb04070 6795 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 6796
6797 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6798 if_nametoindex(bss->ifname));
01652550
JM		 6799 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
6800
6801 os_memset(&upd, 0, sizeof(upd));
6802 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
6803 if (authorized)
6804 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
6805 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6806
6807 return send_and_recv_msgs(drv, msg, NULL, NULL);
6808 nla_put_failure:
6809 return -ENOBUFS;
6810}
6811
3f5285e8 6812
f07ead6a
JM		 6813/* Set kernel driver on given frequency (MHz) */
6814static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 6815{
f07ead6a 6816 struct i802_bss *bss = priv;
e4fb2167 6817 return wpa_driver_nl80211_set_freq(bss, freq->freq, freq->ht_enabled,
f07ead6a 6818 freq->sec_channel_offset);
c5121837
JM		 6819}
6820
f7b3920c
JM		 6821
6822#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 6823
c5121837
JM		 6824static inline int min_int(int a, int b)
6825{
6826 if (a < b)
6827 return a;
6828 return b;
6829}
6830
6831
6832static int get_key_handler(struct nl_msg *msg, void *arg)
6833{
6834 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6835 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6836
6837 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6838 genlmsg_attrlen(gnlh, 0), NULL);
6839
6840 /*
6841 * TODO: validate the key index and mac address!
6842 * Otherwise, there's a race condition as soon as
6843 * the kernel starts sending key notifications.
6844 */
6845
6846 if (tb[NL80211_ATTR_KEY_SEQ])
6847 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
6848 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
6849 return NL_SKIP;
6850}
6851
6852
6853static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
6854 int idx, u8 *seq)
6855{
a2e40bb6
FF		 6856 struct i802_bss *bss = priv;
6857 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6858 struct nl_msg *msg;
6859
6860 msg = nlmsg_alloc();
6861 if (!msg)
6862 return -ENOMEM;
6863
9fb04070 6864 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 6865
6866 if (addr)
6867 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6868 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
6869 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
6870
6871 memset(seq, 0, 6);
6872
6873 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
6874 nla_put_failure:
6875 return -ENOBUFS;
6876}
6877
6878
c5121837
JM		 6879static int i802_set_rts(void *priv, int rts)
6880{
a2e40bb6
FF		 6881 struct i802_bss *bss = priv;
6882 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 6883 struct nl_msg *msg;
6884 int ret = -ENOBUFS;
6885 u32 val;
c5121837 6886
ad649451
JM		 6887 msg = nlmsg_alloc();
6888 if (!msg)
6889 return -ENOMEM;
c5121837 6890
ad649451
JM		 6891 if (rts >= 2347)
6892 val = (u32) -1;
6893 else
6894 val = rts;
c5121837 6895
9fb04070 6896 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 6897 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6898 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
6899
6900 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6901 if (!ret)
6902 return 0;
6903nla_put_failure:
6904 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
6905 "%d (%s)", rts, ret, strerror(-ret));
6906 return ret;
c5121837
JM		 6907}
6908
6909
6910static int i802_set_frag(void *priv, int frag)
6911{
a2e40bb6
FF		 6912 struct i802_bss *bss = priv;
6913 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 6914 struct nl_msg *msg;
6915 int ret = -ENOBUFS;
6916 u32 val;
c5121837 6917
ad649451
JM		 6918 msg = nlmsg_alloc();
6919 if (!msg)
6920 return -ENOMEM;
c5121837 6921
ad649451
JM		 6922 if (frag >= 2346)
6923 val = (u32) -1;
6924 else
6925 val = frag;
c5121837 6926
9fb04070 6927 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 6928 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6929 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
6930
6931 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6932 if (!ret)
6933 return 0;
6934nla_put_failure:
6935 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
6936 "%d: %d (%s)", frag, ret, strerror(-ret));
6937 return ret;
c5121837
JM		 6938}
6939
6940
c5121837
JM		 6941static int i802_flush(void *priv)
6942{
a2e40bb6
FF		 6943 struct i802_bss *bss = priv;
6944 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6945 struct nl_msg *msg;
6946
6947 msg = nlmsg_alloc();
6948 if (!msg)
6949 return -1;
6950
9fb04070 6951 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 6952
6953 /*
6954 * XXX: FIX! this needs to flush all VLANs too
6955 */
6956 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6957 if_nametoindex(bss->ifname));
c5121837
JM		 6958
6959 return send_and_recv_msgs(drv, msg, NULL, NULL);
6960 nla_put_failure:
6961 return -ENOBUFS;
6962}
6963
6964
6965static int get_sta_handler(struct nl_msg *msg, void *arg)
6966{
6967 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6968 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6969 struct hostap_sta_driver_data *data = arg;
6970 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
6971 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
6972 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
6973 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
6974 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
6975 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
6976 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
6977 };
6978
6979 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6980 genlmsg_attrlen(gnlh, 0), NULL);
6981
6982 /*
6983 * TODO: validate the interface and mac address!
6984 * Otherwise, there's a race condition as soon as
6985 * the kernel starts sending station notifications.
6986 */
6987
6988 if (!tb[NL80211_ATTR_STA_INFO]) {
6989 wpa_printf(MSG_DEBUG, "sta stats missing!");
6990 return NL_SKIP;
6991 }
6992 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
6993 tb[NL80211_ATTR_STA_INFO],
6994 stats_policy)) {
6995 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
6996 return NL_SKIP;
6997 }
6998
6999 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
7000 data->inactive_msec =
7001 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
7002 if (stats[NL80211_STA_INFO_RX_BYTES])
7003 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
7004 if (stats[NL80211_STA_INFO_TX_BYTES])
7005 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
7006 if (stats[NL80211_STA_INFO_RX_PACKETS])
7007 data->rx_packets =
7008 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
7009 if (stats[NL80211_STA_INFO_TX_PACKETS])
7010 data->tx_packets =
7011 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
7012
7013 return NL_SKIP;
7014}
7015
7016static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
7017 const u8 *addr)
7018{
a2e40bb6
FF		 7019 struct i802_bss *bss = priv;
7020 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7021 struct nl_msg *msg;
7022
7023 os_memset(data, 0, sizeof(*data));
7024 msg = nlmsg_alloc();
7025 if (!msg)
7026 return -ENOMEM;
7027
9fb04070 7028 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 7029
7030 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 7031 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7032
7033 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
7034 nla_put_failure:
7035 return -ENOBUFS;
7036}
7037
7038
c5121837
JM		 7039static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
7040 int cw_min, int cw_max, int burst_time)
7041{
a2e40bb6
FF		 7042 struct i802_bss *bss = priv;
7043 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7044 struct nl_msg *msg;
7045 struct nlattr *txq, *params;
7046
7047 msg = nlmsg_alloc();
7048 if (!msg)
7049 return -1;
7050
9fb04070 7051 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 7052
a2e40bb6 7053 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7054
7055 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
7056 if (!txq)
7057 goto nla_put_failure;
7058
7059 /* We are only sending parameters for a single TXQ at a time */
7060 params = nla_nest_start(msg, 1);
7061 if (!params)
7062 goto nla_put_failure;
7063
7e3c1781
JM		 7064 switch (queue) {
7065 case 0:
7066 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
7067 break;
7068 case 1:
7069 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
7070 break;
7071 case 2:
7072 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
7073 break;
7074 case 3:
7075 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
7076 break;
7077 }
c5121837
JM		 7078 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
7079 * 32 usec, so need to convert the value here. */
7080 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
7081 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
7082 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
7083 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
7084
7085 nla_nest_end(msg, params);
7086
7087 nla_nest_end(msg, txq);
7088
7089 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7090 return 0;
7091 nla_put_failure:
7092 return -1;
7093}
7094
7095
c5121837
JM		 7096static int i802_set_sta_vlan(void *priv, const u8 *addr,
7097 const char *ifname, int vlan_id)
7098{
a2e40bb6
FF		 7099 struct i802_bss *bss = priv;
7100 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 7101 struct nl_msg *msg;
cd1d72c1 7102 int ret = -ENOBUFS;
c5121837
JM		 7103
7104 msg = nlmsg_alloc();
7105 if (!msg)
7106 return -ENOMEM;
7107
9fb04070 7108 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 7109
7110 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7111 if_nametoindex(bss->ifname));
c5121837 7112 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 7113 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 7114 if_nametoindex(ifname));
7115
cd1d72c1
JM		 7116 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7117 if (ret < 0) {
7118 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
7119 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
7120 MAC2STR(addr), ifname, vlan_id, ret,
7121 strerror(-ret));
7122 }
c5121837 7123 nla_put_failure:
cd1d72c1 7124 return ret;
c5121837
JM		 7125}
7126
fbbfcbac 7127
c5121837
JM		 7128static int i802_get_inact_sec(void *priv, const u8 *addr)
7129{
7130 struct hostap_sta_driver_data data;
7131 int ret;
7132
7133 data.inactive_msec = (unsigned long) -1;
7134 ret = i802_read_sta_data(priv, &data, addr);
7135 if (ret || data.inactive_msec == (unsigned long) -1)
7136 return -1;
7137 return data.inactive_msec / 1000;
7138}
7139
7140
7141static int i802_sta_clear_stats(void *priv, const u8 *addr)
7142{
7143#if 0
7144 /* TODO */
7145#endif
7146 return 0;
7147}
7148
7149
731723a5
JM		 7150static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
7151 int reason)
c5121837 7152{
a2e40bb6 7153 struct i802_bss *bss = priv;
c5121837
JM		 7154 struct ieee80211_mgmt mgmt;
7155
7156 memset(&mgmt, 0, sizeof(mgmt));
7157 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7158 WLAN_FC_STYPE_DEAUTH);
7159 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 7160 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7161 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 7162 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 7163 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 7164 IEEE80211_HDRLEN +
8cfa3527 7165 sizeof(mgmt.u.deauth), 0);
c5121837
JM		 7166}
7167
7168
731723a5
JM		 7169static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
7170 int reason)
c5121837 7171{
a2e40bb6 7172 struct i802_bss *bss = priv;
c5121837
JM		 7173 struct ieee80211_mgmt mgmt;
7174
7175 memset(&mgmt, 0, sizeof(mgmt));
7176 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7177 WLAN_FC_STYPE_DISASSOC);
7178 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 7179 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7180 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 7181 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 7182 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 7183 IEEE80211_HDRLEN +
8cfa3527 7184 sizeof(mgmt.u.disassoc), 0);
c5121837
JM		 7185}
7186
ee7ab173
JB		 7187#endif /* HOSTAPD || CONFIG_AP */
7188
7189#ifdef HOSTAPD
c5121837 7190
f07ead6a
JM		 7191static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7192{
7193 int i;
7194 int *old;
7195
7196 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
7197 ifidx);
7198 for (i = 0; i < drv->num_if_indices; i++) {
7199 if (drv->if_indices[i] == 0) {
7200 drv->if_indices[i] = ifidx;
7201 return;
7202 }
7203 }
7204
7205 if (drv->if_indices != drv->default_if_indices)
7206 old = drv->if_indices;
7207 else
7208 old = NULL;
7209
7210 drv->if_indices = os_realloc(old,
7211 sizeof(int) * (drv->num_if_indices + 1));
7212 if (!drv->if_indices) {
7213 if (!old)
7214 drv->if_indices = drv->default_if_indices;
7215 else
7216 drv->if_indices = old;
7217 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
7218 "interfaces");
7219 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
7220 return;
7221 } else if (!old)
7222 os_memcpy(drv->if_indices, drv->default_if_indices,
7223 sizeof(drv->default_if_indices));
7224 drv->if_indices[drv->num_if_indices] = ifidx;
7225 drv->num_if_indices++;
7226}
7227
7228
7229static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7230{
7231 int i;
7232
7233 for (i = 0; i < drv->num_if_indices; i++) {
7234 if (drv->if_indices[i] == ifidx) {
7235 drv->if_indices[i] = 0;
7236 break;
7237 }
7238 }
7239}
7240
7241
7242static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7243{
7244 int i;
7245
7246 for (i = 0; i < drv->num_if_indices; i++)
7247 if (drv->if_indices[i] == ifidx)
7248 return 1;
7249
7250 return 0;
7251}
7252
7253
7254static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
7255 const char *bridge_ifname)
7256{
7257 struct i802_bss *bss = priv;
7258 struct wpa_driver_nl80211_data *drv = bss->drv;
7259 char name[IFNAMSIZ + 1];
7260
7261 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
7262 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
7263 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
7264 if (val) {
7265 if (!if_nametoindex(name)) {
7266 if (nl80211_create_iface(drv, name,
7267 NL80211_IFTYPE_AP_VLAN,
7268 NULL, 1) < 0)
7269 return -1;
7270 if (bridge_ifname &&
c81eff1a
BG		 7271 linux_br_add_if(drv->global->ioctl_sock,
7272 bridge_ifname, name) < 0)
f07ead6a
JM		 7273 return -1;
7274 }
c81eff1a 7275 linux_set_iface_flags(drv->global->ioctl_sock, name, 1);
f07ead6a
JM		 7276 return i802_set_sta_vlan(priv, addr, name, 0);
7277 } else {
7278 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
7279 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
7280 name);
7281 }
7282}
7283
7284
7285static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
7286{
7287 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7288 struct sockaddr_ll lladdr;
7289 unsigned char buf[3000];
7290 int len;
7291 socklen_t fromlen = sizeof(lladdr);
7292
7293 len = recvfrom(sock, buf, sizeof(buf), 0,
7294 (struct sockaddr *)&lladdr, &fromlen);
7295 if (len < 0) {
7296 perror("recv");
7297 return;
7298 }
7299
7300 if (have_ifidx(drv, lladdr.sll_ifindex))
7301 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
7302}
7303
7304
94627f6c 7305static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 7306 struct i802_bss *bss,
94627f6c
JM		 7307 const char *brname, const char *ifname)
7308{
7309 int ifindex;
7310 char in_br[IFNAMSIZ];
7311
e17a2477 7312 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 7313 ifindex = if_nametoindex(brname);
7314 if (ifindex == 0) {
7315 /*
7316 * Bridge was configured, but the bridge device does
7317 * not exist. Try to add it now.
7318 */
c81eff1a 7319 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 7320 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
7321 "bridge interface %s: %s",
7322 brname, strerror(errno));
7323 return -1;
7324 }
e17a2477 7325 bss->added_bridge = 1;
94627f6c
JM		 7326 add_ifidx(drv, if_nametoindex(brname));
7327 }
7328
7329 if (linux_br_get(in_br, ifname) == 0) {
7330 if (os_strcmp(in_br, brname) == 0)
7331 return 0; /* already in the bridge */
7332
7333 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
7334 "bridge %s", ifname, in_br);
c81eff1a
BG		 7335 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
7336 0) {
94627f6c
JM		 7337 wpa_printf(MSG_ERROR, "nl80211: Failed to "
7338 "remove interface %s from bridge "
7339 "%s: %s",
7340 ifname, brname, strerror(errno));
7341 return -1;
7342 }
7343 }
7344
7345 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
7346 ifname, brname);
c81eff1a 7347 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 7348 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
7349 "into bridge %s: %s",
7350 ifname, brname, strerror(errno));
7351 return -1;
7352 }
e17a2477 7353 bss->added_if_into_bridge = 1;
94627f6c
JM		 7354
7355 return 0;
7356}
7357
7358
92f475b4
JM		 7359static void *i802_init(struct hostapd_data *hapd,
7360 struct wpa_init_params *params)
c5121837
JM		 7361{
7362 struct wpa_driver_nl80211_data *drv;
a2e40bb6 7363 struct i802_bss *bss;
c5121837 7364 size_t i;
94627f6c
JM		 7365 char brname[IFNAMSIZ];
7366 int ifindex, br_ifindex;
7367 int br_added = 0;
c5121837 7368
4b24282a
JM		 7369 bss = wpa_driver_nl80211_init(hapd, params->ifname,
7370 params->global_priv);
a2e40bb6 7371 if (bss == NULL)
c5121837 7372 return NULL;
c5121837 7373
a2e40bb6 7374 drv = bss->drv;
0382097e 7375 drv->nlmode = NL80211_IFTYPE_AP;
7635bfb0
JB		 7376 drv->eapol_sock = -1;
7377
94627f6c
JM		 7378 if (linux_br_get(brname, params->ifname) == 0) {
7379 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
7380 params->ifname, brname);
7381 br_ifindex = if_nametoindex(brname);
7382 } else {
7383 brname[0] = '\0';
7384 br_ifindex = 0;
7385 }
7386
c5121837
JM		 7387 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
7388 drv->if_indices = drv->default_if_indices;
92f475b4 7389 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 7390 if (params->bridge[i]) {
7391 ifindex = if_nametoindex(params->bridge[i]);
7392 if (ifindex)
7393 add_ifidx(drv, ifindex);
7394 if (ifindex == br_ifindex)
7395 br_added = 1;
7396 }
c5121837 7397 }
94627f6c
JM		 7398 if (!br_added && br_ifindex &&
7399 (params->num_bridge == 0 || !params->bridge[0]))
7400 add_ifidx(drv, br_ifindex);
c5121837 7401
ad1e68e6
JM		 7402 /* start listening for EAPOL on the default AP interface */
7403 add_ifidx(drv, drv->ifindex);
7404
c81eff1a 7405 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
6980c191 7406 goto failed;
ad1e68e6 7407
6980c191 7408 if (params->bssid) {
c81eff1a 7409 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2ac9688e 7410 params->bssid))
460456f8
JM		 7411 goto failed;
7412 }
ad1e68e6 7413
b1f625e0 7414 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 7415 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 7416 "into AP mode", bss->ifname);
bbaf0837 7417 goto failed;
ad1e68e6
JM		 7418 }
7419
94627f6c 7420 if (params->num_bridge && params->bridge[0] &&
e17a2477 7421 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 7422 goto failed;
7423
c81eff1a 7424 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
bbaf0837 7425 goto failed;
ad1e68e6
JM		 7426
7427 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
7428 if (drv->eapol_sock < 0) {
7429 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 7430 goto failed;
ad1e68e6
JM		 7431 }
7432
7433 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
7434 {
7435 printf("Could not register read socket for eapol\n");
c5121837 7436 goto failed;
ad1e68e6
JM		 7437 }
7438
c81eff1a
BG		 7439 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7440 params->own_addr))
bbaf0837 7441 goto failed;
c5121837 7442
341eebee
JB		 7443 memcpy(bss->addr, params->own_addr, ETH_ALEN);
7444
a2e40bb6 7445 return bss;
c5121837
JM		 7446
7447failed:
7635bfb0 7448 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 7449 return NULL;
7450}
c5121837 7451
c5121837 7452
bbaf0837
JM		 7453static void i802_deinit(void *priv)
7454{
7455 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 7456}
7457
7458#endif /* HOSTAPD */
7459
7460
22a7c9d7
JM		 7461static enum nl80211_iftype wpa_driver_nl80211_if_type(
7462 enum wpa_driver_if_type type)
7463{
7464 switch (type) {
7465 case WPA_IF_STATION:
9f51b113 7466 return NL80211_IFTYPE_STATION;
75bde05d
JM		 7467 case WPA_IF_P2P_CLIENT:
7468 case WPA_IF_P2P_GROUP:
9f51b113 7469 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 7470 case WPA_IF_AP_VLAN:
7471 return NL80211_IFTYPE_AP_VLAN;
7472 case WPA_IF_AP_BSS:
7473 return NL80211_IFTYPE_AP;
9f51b113
JB		 7474 case WPA_IF_P2P_GO:
7475 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 7476 }
7477 return -1;
7478}
7479
7480
482856c8
JM		 7481#ifdef CONFIG_P2P
7482
f2ed8023
JM		 7483static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
7484{
7485 struct wpa_driver_nl80211_data *drv;
7486 dl_list_for_each(drv, &global->interfaces,
7487 struct wpa_driver_nl80211_data, list) {
341eebee 7488 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
f2ed8023
JM		 7489 return 1;
7490 }
7491 return 0;
7492}
7493
7494
7495static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
7496 u8 *new_addr)
7497{
7498 unsigned int idx;
7499
7500 if (!drv->global)
7501 return -1;
7502
341eebee 7503 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
f2ed8023 7504 for (idx = 0; idx < 64; idx++) {
341eebee 7505 new_addr[0] = drv->first_bss.addr[0] | 0x02;
f2ed8023
JM		 7506 new_addr[0] ^= idx << 2;
7507 if (!nl80211_addr_in_use(drv->global, new_addr))
7508 break;
7509 }
7510 if (idx == 64)
7511 return -1;
7512
7513 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
7514 MACSTR, MAC2STR(new_addr));
7515
7516 return 0;
7517}
7518
482856c8
JM		 7519#endif /* CONFIG_P2P */
7520
f2ed8023 7521
7ab68865 7522static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 7523 const char *ifname, const u8 *addr,
f3585c8a 7524 void *bss_ctx, void **drv_priv,
e17a2477
JM		 7525 char *force_ifname, u8 *if_addr,
7526 const char *bridge)
22a7c9d7 7527{
a2e40bb6
FF		 7528 struct i802_bss *bss = priv;
7529 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 7530 int ifidx;
7531#ifdef HOSTAPD
a2e40bb6 7532 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 7533
7534 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 7535 new_bss = os_zalloc(sizeof(*new_bss));
7536 if (new_bss == NULL)
22a7c9d7
JM		 7537 return -1;
7538 }
7539#endif /* HOSTAPD */
7540
f3585c8a
JM		 7541 if (addr)
7542 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 7543 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 7544 wpa_driver_nl80211_if_type(type), addr,
7545 0);
22a7c9d7
JM		 7546 if (ifidx < 0) {
7547#ifdef HOSTAPD
a2e40bb6 7548 os_free(new_bss);
22a7c9d7
JM		 7549#endif /* HOSTAPD */
7550 return -1;
7551 }
7552
f3585c8a 7553 if (!addr &&
c81eff1a
BG		 7554 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7555 if_addr) < 0) {
c55f774d 7556 nl80211_remove_iface(drv, ifidx);
f3585c8a 7557 return -1;
c55f774d
JM		 7558 }
7559
7560#ifdef CONFIG_P2P
7561 if (!addr &&
7562 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
7563 type == WPA_IF_P2P_GO)) {
7564 /* Enforce unique P2P Interface Address */
7565 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
7566
c81eff1a
BG		 7567 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7568 own_addr) < 0 ||
7569 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
7570 new_addr) < 0) {
c55f774d
JM		 7571 nl80211_remove_iface(drv, ifidx);
7572 return -1;
7573 }
7574 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
7575 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
7576 "for P2P group interface");
f2ed8023 7577 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 7578 nl80211_remove_iface(drv, ifidx);
7579 return -1;
7580 }
c81eff1a 7581 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 7582 new_addr) < 0) {
7583 nl80211_remove_iface(drv, ifidx);
7584 return -1;
7585 }
c55f774d 7586 }
f67eeb5c 7587 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 7588 }
7589#endif /* CONFIG_P2P */
f3585c8a 7590
22a7c9d7 7591#ifdef HOSTAPD
e17a2477
JM		 7592 if (bridge &&
7593 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
7594 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
7595 "interface %s to a bridge %s", ifname, bridge);
7596 nl80211_remove_iface(drv, ifidx);
7597 os_free(new_bss);
7598 return -1;
7599 }
7600
22a7c9d7 7601 if (type == WPA_IF_AP_BSS) {
c81eff1a
BG		 7602 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
7603 {
34f2f814 7604 nl80211_remove_iface(drv, ifidx);
07179987 7605 os_free(new_bss);
22a7c9d7
JM		 7606 return -1;
7607 }
a2e40bb6 7608 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
341eebee 7609 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
a2e40bb6
FF		 7610 new_bss->ifindex = ifidx;
7611 new_bss->drv = drv;
7612 new_bss->next = drv->first_bss.next;
7613 drv->first_bss.next = new_bss;
7614 if (drv_priv)
7615 *drv_priv = new_bss;
cc7a48d1 7616 nl80211_init_bss(new_bss);
22a7c9d7
JM		 7617 }
7618#endif /* HOSTAPD */
7619
ff6a158b
JM		 7620 if (drv->global)
7621 drv->global->if_add_ifindex = ifidx;
7622
22a7c9d7
JM		 7623 return 0;
7624}
7625
7626
7627static int wpa_driver_nl80211_if_remove(void *priv,
7628 enum wpa_driver_if_type type,
7629 const char *ifname)
7630{
a2e40bb6
FF		 7631 struct i802_bss *bss = priv;
7632 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 7633 int ifindex = if_nametoindex(ifname);
7634
e748062b
JM		 7635 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
7636 __func__, type, ifname, ifindex);
7637 if (ifindex <= 0)
7638 return -1;
e17a2477
JM		 7639
7640#ifdef HOSTAPD
7641 if (bss->added_if_into_bridge) {
c81eff1a
BG		 7642 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
7643 bss->ifname) < 0)
e17a2477
JM		 7644 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7645 "interface %s from bridge %s: %s",
7646 bss->ifname, bss->brname, strerror(errno));
7647 }
7648 if (bss->added_bridge) {
c81eff1a 7649 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 7650 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7651 "bridge %s: %s",
7652 bss->brname, strerror(errno));
7653 }
7654#endif /* HOSTAPD */
7655
22a7c9d7
JM		 7656 nl80211_remove_iface(drv, ifindex);
7657
7658#ifdef HOSTAPD
a2e40bb6
FF		 7659 if (type != WPA_IF_AP_BSS)
7660 return 0;
7661
7662 if (bss != &drv->first_bss) {
8546ea19 7663 struct i802_bss *tbss;
a2e40bb6 7664
8546ea19
JM		 7665 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
7666 if (tbss->next == bss) {
7667 tbss->next = bss->next;
cc7a48d1 7668 nl80211_destroy_bss(bss);
8546ea19
JM		 7669 os_free(bss);
7670 bss = NULL;
7671 break;
7672 }
22a7c9d7 7673 }
8546ea19
JM		 7674 if (bss)
7675 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
7676 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 7677 }
7678#endif /* HOSTAPD */
7679
7680 return 0;
7681}
7682
7683
55777702
JM		 7684static int cookie_handler(struct nl_msg *msg, void *arg)
7685{
7686 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7687 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7688 u64 *cookie = arg;
7689 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7690 genlmsg_attrlen(gnlh, 0), NULL);
7691 if (tb[NL80211_ATTR_COOKIE])
7692 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
7693 return NL_SKIP;
7694}
7695
7696
88df0ef7 7697static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f
JB		 7698 unsigned int freq, unsigned int wait,
7699 const u8 *buf, size_t buf_len,
88df0ef7
JB		 7700 u64 *cookie_out, int no_cck, int no_ack,
7701 int offchanok)
9884f9cc 7702{
88df0ef7 7703 struct wpa_driver_nl80211_data *drv = bss->drv;
9884f9cc
JB		 7704 struct nl_msg *msg;
7705 u64 cookie;
7706 int ret = -1;
7707
7708 msg = nlmsg_alloc();
7709 if (!msg)
7710 return -1;
7711
9fb04070 7712 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc 7713
88df0ef7 7714 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9884f9cc 7715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 7716 if (wait)
7717 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
88df0ef7
JB		 7718 if (offchanok)
7719 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
b106173a
JM		 7720 if (no_cck)
7721 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
ddc53271
JM		 7722 if (no_ack)
7723 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
970fa12e 7724
9884f9cc
JB		 7725 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
7726
7727 cookie = 0;
7728 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7729 msg = NULL;
7730 if (ret) {
7731 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 7732 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
7733 freq, wait);
9884f9cc
JB		 7734 goto nla_put_failure;
7735 }
ddc53271
JM		 7736 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; "
7737 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
7738 (long long unsigned int) cookie);
9884f9cc
JB		 7739
7740 if (cookie_out)
ddc53271 7741 *cookie_out = no_ack ? (u64) -1 : cookie;
9884f9cc
JB		 7742
7743nla_put_failure:
7744 nlmsg_free(msg);
7745 return ret;
7746}
7747
7748
58f6fbe0 7749static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 7750 unsigned int wait_time,
58f6fbe0
JM		 7751 const u8 *dst, const u8 *src,
7752 const u8 *bssid,
b106173a
JM		 7753 const u8 *data, size_t data_len,
7754 int no_cck)
58f6fbe0 7755{
a2e40bb6
FF		 7756 struct i802_bss *bss = priv;
7757 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 7758 int ret = -1;
58f6fbe0
JM		 7759 u8 *buf;
7760 struct ieee80211_hdr *hdr;
58f6fbe0 7761
5dfca53f 7762 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
b106173a 7763 "wait=%d ms no_cck=%d)", drv->ifindex, wait_time, no_cck);
58f6fbe0
JM		 7764
7765 buf = os_zalloc(24 + data_len);
7766 if (buf == NULL)
7767 return ret;
7768 os_memcpy(buf + 24, data, data_len);
7769 hdr = (struct ieee80211_hdr *) buf;
7770 hdr->frame_control =
7771 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
7772 os_memcpy(hdr->addr1, dst, ETH_ALEN);
7773 os_memcpy(hdr->addr2, src, ETH_ALEN);
7774 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
7775
b1f625e0 7776 if (is_ap_interface(drv->nlmode))
8cfa3527
HS		 7777 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len,
7778 0);
9884f9cc 7779 else
88df0ef7 7780 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
5dfca53f 7781 24 + data_len,
b106173a 7782 &drv->send_action_cookie,
88df0ef7 7783 no_cck, 0, 1);
58f6fbe0 7784
f8bf1421 7785 os_free(buf);
58f6fbe0
JM		 7786 return ret;
7787}
7788
7789
5dfca53f
JB		 7790static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
7791{
7792 struct i802_bss *bss = priv;
7793 struct wpa_driver_nl80211_data *drv = bss->drv;
7794 struct nl_msg *msg;
7795 int ret;
7796
7797 msg = nlmsg_alloc();
7798 if (!msg)
7799 return;
7800
9fb04070 7801 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 7802
7803 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7804 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
7805
7806 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7807 msg = NULL;
7808 if (ret)
7809 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
7810 "(%s)", ret, strerror(-ret));
7811
7812 nla_put_failure:
7813 nlmsg_free(msg);
7814}
7815
7816
55777702
JM		 7817static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
7818 unsigned int duration)
7819{
a2e40bb6
FF		 7820 struct i802_bss *bss = priv;
7821 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 7822 struct nl_msg *msg;
7823 int ret;
7824 u64 cookie;
7825
7826 msg = nlmsg_alloc();
7827 if (!msg)
7828 return -1;
7829
9fb04070 7830 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702
JM		 7831
7832 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7833 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7834 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7835
7836 cookie = 0;
7837 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7838 if (ret == 0) {
7839 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
7840 "0x%llx for freq=%u MHz duration=%u",
7841 (long long unsigned int) cookie, freq, duration);
7842 drv->remain_on_chan_cookie = cookie;
531f0331 7843 drv->pending_remain_on_chan = 1;
55777702
JM		 7844 return 0;
7845 }
7846 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 7847 "(freq=%d duration=%u): %d (%s)",
7848 freq, duration, ret, strerror(-ret));
55777702
JM		 7849nla_put_failure:
7850 return -1;
7851}
7852
7853
7854static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
7855{
a2e40bb6
FF		 7856 struct i802_bss *bss = priv;
7857 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 7858 struct nl_msg *msg;
7859 int ret;
7860
7861 if (!drv->pending_remain_on_chan) {
7862 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
7863 "to cancel");
7864 return -1;
7865 }
7866
7867 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
7868 "0x%llx",
7869 (long long unsigned int) drv->remain_on_chan_cookie);
7870
7871 msg = nlmsg_alloc();
7872 if (!msg)
7873 return -1;
7874
9fb04070 7875 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702
JM		 7876
7877 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7878 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
7879
7880 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7881 if (ret == 0)
7882 return 0;
7883 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
7884 "%d (%s)", ret, strerror(-ret));
7885nla_put_failure:
7886 return -1;
7887}
7888
7889
504e905c
JM		 7890static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
7891{
a2e40bb6
FF		 7892 struct i802_bss *bss = priv;
7893 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 7894
5582a5d1 7895 if (!report) {
481234cf 7896 if (bss->nl_preq) {
5582a5d1 7897 eloop_unregister_read_sock(
481234cf 7898 nl_socket_get_fd(bss->nl_preq));
221a59c9 7899 nl_destroy_handles(&bss->nl_preq);
5582a5d1
JB		 7900 }
7901 return 0;
7902 }
7903
481234cf 7904 if (bss->nl_preq) {
5582a5d1
JB		 7905 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
7906 "already on!");
7907 return 0;
7908 }
7909
481234cf
JM		 7910 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
7911 if (bss->nl_preq == NULL)
5582a5d1 7912 return -1;
5582a5d1 7913
481234cf 7914 if (nl80211_register_frame(bss, bss->nl_preq,
5582a5d1
JB		 7915 (WLAN_FC_TYPE_MGMT << 2) |
7916 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 7917 NULL, 0) < 0)
7918 goto out_err;
5582a5d1 7919
481234cf 7920 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq),
a11241fa 7921 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 7922 bss->nl_preq);
5582a5d1 7923
504e905c 7924 return 0;
5582a5d1 7925
a92dfde8 7926 out_err:
221a59c9 7927 nl_destroy_handles(&bss->nl_preq);
5582a5d1 7928 return -1;
504e905c
JM		 7929}
7930
7931
4e5cb1a3
JM		 7932static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
7933 int ifindex, int disabled)
7934{
7935 struct nl_msg *msg;
7936 struct nlattr *bands, *band;
7937 int ret;
7938
7939 msg = nlmsg_alloc();
7940 if (!msg)
7941 return -1;
7942
9fb04070 7943 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 7944 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
7945
7946 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
7947 if (!bands)
7948 goto nla_put_failure;
7949
7950 /*
7951 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
7952 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
7953 * rates. All 5 GHz rates are left enabled.
7954 */
7955 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
7956 if (!band)
7957 goto nla_put_failure;
1dea5882
JM		 7958 if (disabled) {
7959 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
7960 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
7961 }
4e5cb1a3
JM		 7962 nla_nest_end(msg, band);
7963
7964 nla_nest_end(msg, bands);
7965
7966 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7967 msg = NULL;
7968 if (ret) {
7969 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
7970 "(%s)", ret, strerror(-ret));
7971 }
7972
7973 return ret;
7974
7975nla_put_failure:
7976 nlmsg_free(msg);
7977 return -1;
7978}
7979
7980
af473088
JM		 7981static int wpa_driver_nl80211_deinit_ap(void *priv)
7982{
a2e40bb6
FF		 7983 struct i802_bss *bss = priv;
7984 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 7985 if (!is_ap_interface(drv->nlmode))
af473088
JM		 7986 return -1;
7987 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 7988 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 7989}
7990
7991
207ef3fb
JM		 7992static void wpa_driver_nl80211_resume(void *priv)
7993{
a2e40bb6
FF		 7994 struct i802_bss *bss = priv;
7995 struct wpa_driver_nl80211_data *drv = bss->drv;
c81eff1a 7996 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 7997 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
7998 "resume event");
7999 }
8000}
8001
8002
7b90c16a
JM		 8003static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
8004 const u8 *ies, size_t ies_len)
8005{
8006 struct i802_bss *bss = priv;
8007 struct wpa_driver_nl80211_data *drv = bss->drv;
8008 int ret;
8009 u8 *data, *pos;
8010 size_t data_len;
341eebee 8011 const u8 *own_addr = bss->addr;
7b90c16a
JM		 8012
8013 if (action != 1) {
8014 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
8015 "action %d", action);
8016 return -1;
8017 }
8018
8019 /*
8020 * Action frame payload:
8021 * Category[1] = 6 (Fast BSS Transition)
8022 * Action[1] = 1 (Fast BSS Transition Request)
8023 * STA Address
8024 * Target AP Address
8025 * FT IEs
8026 */
8027
73fc617d
JM		 8028 data_len = 2 + 2 * ETH_ALEN + ies_len;
8029 data = os_malloc(data_len);
7b90c16a
JM		 8030 if (data == NULL)
8031 return -1;
8032 pos = data;
8033 *pos++ = 0x06; /* FT Action category */
8034 *pos++ = action;
8035 os_memcpy(pos, own_addr, ETH_ALEN);
8036 pos += ETH_ALEN;
8037 os_memcpy(pos, target_ap, ETH_ALEN);
8038 pos += ETH_ALEN;
8039 os_memcpy(pos, ies, ies_len);
8040
190b9062
JB		 8041 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
8042 drv->bssid, own_addr, drv->bssid,
b106173a 8043 data, data_len, 0);
7b90c16a
JM		 8044 os_free(data);
8045
8046 return ret;
8047}
8048
8049
b625473c
JM		 8050static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
8051{
8052 struct i802_bss *bss = priv;
8053 struct wpa_driver_nl80211_data *drv = bss->drv;
8054 struct nl_msg *msg, *cqm = NULL;
8055
8056 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
8057 "hysteresis=%d", threshold, hysteresis);
8058
8059 msg = nlmsg_alloc();
8060 if (!msg)
8061 return -1;
8062
9fb04070 8063 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 8064
8065 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8066
8067 cqm = nlmsg_alloc();
8068 if (cqm == NULL)
8069 return -1;
8070
8071 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
8072 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
8073 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
8074
8075 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
8076 return 0;
8077 msg = NULL;
8078
8079nla_put_failure:
8080 if (cqm)
8081 nlmsg_free(cqm);
8082 nlmsg_free(msg);
8083 return -1;
8084}
8085
8086
1c5c7273
PS		 8087static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
8088{
8089 struct i802_bss *bss = priv;
8090 struct wpa_driver_nl80211_data *drv = bss->drv;
8091 int res;
8092
8093 os_memset(si, 0, sizeof(*si));
8094 res = nl80211_get_link_signal(drv, si);
8095 if (res != 0)
8096 return res;
8097
8098 return nl80211_get_link_noise(drv, si);
8099}
8100
8101
57ebba59
JJ		 8102static int wpa_driver_nl80211_shared_freq(void *priv)
8103{
8104 struct i802_bss *bss = priv;
8105 struct wpa_driver_nl80211_data *drv = bss->drv;
8106 struct wpa_driver_nl80211_data *driver;
8107 int freq = 0;
8108
8109 /*
8110 * If the same PHY is in connected state with some other interface,
8111 * then retrieve the assoc freq.
8112 */
8113 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
8114 drv->phyname);
8115
8116 dl_list_for_each(driver, &drv->global->interfaces,
8117 struct wpa_driver_nl80211_data, list) {
8118 if (drv == driver ||
8119 os_strcmp(drv->phyname, driver->phyname) != 0 ||
8120 !driver->associated)
8121 continue;
8122
8123 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
8124 MACSTR,
8125 driver->phyname, driver->first_bss.ifname,
341eebee 8126 MAC2STR(driver->first_bss.addr));
57ebba59
JJ		 8127 freq = nl80211_get_assoc_freq(driver);
8128 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
8129 drv->phyname, freq);
8130 }
8131
8132 if (!freq)
8133 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
8134 "PHY (%s) in associated state", drv->phyname);
8135
8136 return freq;
8137}
8138
8139
b91ab76e
JM		 8140static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
8141 int encrypt)
8142{
8143 struct i802_bss *bss = priv;
a11241fa 8144 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0);
b91ab76e
JM		 8145}
8146
8147
c55f774d
JM		 8148static int nl80211_set_param(void *priv, const char *param)
8149{
c55f774d
JM		 8150 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
8151 if (param == NULL)
8152 return 0;
8153
8154#ifdef CONFIG_P2P
8155 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 8156 struct i802_bss *bss = priv;
8157 struct wpa_driver_nl80211_data *drv = bss->drv;
8158
c55f774d
JM		 8159 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
8160 "interface");
8161 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
8162 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
8163 }
8164#endif /* CONFIG_P2P */
8165
8166 return 0;
8167}
8168
8169
f2ed8023
JM		 8170static void * nl80211_global_init(void)
8171{
8172 struct nl80211_global *global;
36d84860
BG		 8173 struct netlink_config *cfg;
8174
f2ed8023
JM		 8175 global = os_zalloc(sizeof(*global));
8176 if (global == NULL)
8177 return NULL;
c81eff1a 8178 global->ioctl_sock = -1;
f2ed8023 8179 dl_list_init(&global->interfaces);
ff6a158b 8180 global->if_add_ifindex = -1;
36d84860
BG		 8181
8182 cfg = os_zalloc(sizeof(*cfg));
8183 if (cfg == NULL)
8184 goto err;
8185
8186 cfg->ctx = global;
8187 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
8188 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
8189 global->netlink = netlink_init(cfg);
8190 if (global->netlink == NULL) {
8191 os_free(cfg);
8192 goto err;
8193 }
8194
2a7b66f5
BG		 8195 if (wpa_driver_nl80211_init_nl_global(global) < 0)
8196 goto err;
8197
c81eff1a
BG		 8198 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
8199 if (global->ioctl_sock < 0) {
8200 perror("socket(PF_INET,SOCK_DGRAM)");
8201 goto err;
8202 }
8203
f2ed8023 8204 return global;
36d84860
BG		 8205
8206err:
8207 nl80211_global_deinit(global);
8208 return NULL;
f2ed8023
JM		 8209}
8210
8211
8212static void nl80211_global_deinit(void *priv)
8213{
8214 struct nl80211_global *global = priv;
8215 if (global == NULL)
8216 return;
8217 if (!dl_list_empty(&global->interfaces)) {
8218 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
8219 "nl80211_global_deinit",
8220 dl_list_len(&global->interfaces));
8221 }
36d84860
BG		 8222
8223 if (global->netlink)
8224 netlink_deinit(global->netlink);
8225
276e2d67
BG		 8226 nl_destroy_handles(&global->nl);
8227
481234cf 8228 if (global->nl_event) {
d6c9aab8 8229 eloop_unregister_read_sock(
481234cf 8230 nl_socket_get_fd(global->nl_event));
d6c9aab8
JB		 8231 nl_destroy_handles(&global->nl_event);
8232 }
8233
8234 nl_cb_put(global->nl_cb);
2a7b66f5 8235
c81eff1a
BG		 8236 if (global->ioctl_sock >= 0)
8237 close(global->ioctl_sock);
8238
f2ed8023
JM		 8239 os_free(global);
8240}
8241
8242
6859f1cb
BG		 8243static const char * nl80211_get_radio_name(void *priv)
8244{
8245 struct i802_bss *bss = priv;
8246 struct wpa_driver_nl80211_data *drv = bss->drv;
8247 return drv->phyname;
8248}
8249
8250
a6efc65d
JM		 8251static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
8252 const u8 *pmkid)
8253{
8254 struct nl_msg *msg;
8255
8256 msg = nlmsg_alloc();
8257 if (!msg)
8258 return -ENOMEM;
8259
9fb04070 8260 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 8261
8262 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
8263 if (pmkid)
8264 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
8265 if (bssid)
8266 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8267
8268 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8269 nla_put_failure:
8270 return -ENOBUFS;
8271}
8272
8273
8274static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8275{
8276 struct i802_bss *bss = priv;
8277 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
8278 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
8279}
8280
8281
8282static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8283{
8284 struct i802_bss *bss = priv;
8285 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
8286 MAC2STR(bssid));
8287 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
8288}
8289
8290
8291static int nl80211_flush_pmkid(void *priv)
8292{
8293 struct i802_bss *bss = priv;
8294 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
8295 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
8296}
8297
8298
b14a210c
JB		 8299static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
8300 const u8 *replay_ctr)
8301{
8302 struct i802_bss *bss = priv;
8303 struct wpa_driver_nl80211_data *drv = bss->drv;
8304 struct nlattr *replay_nested;
8305 struct nl_msg *msg;
8306
8307 msg = nlmsg_alloc();
8308 if (!msg)
8309 return;
8310
9fb04070 8311 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 8312
8313 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8314
8315 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8316 if (!replay_nested)
8317 goto nla_put_failure;
8318
8319 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
8320 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
8321 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
8322 replay_ctr);
8323
8324 nla_nest_end(msg, replay_nested);
8325
8326 send_and_recv_msgs(drv, msg, NULL, NULL);
8327 return;
8328 nla_put_failure:
8329 nlmsg_free(msg);
8330}
8331
8332
39718852
JB		 8333static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
8334 const u8 *addr, int qos)
bcf24348 8335{
39718852
JB		 8336 /* send data frame to poll STA and check whether
8337 * this frame is ACKed */
bcf24348
JB		 8338 struct {
8339 struct ieee80211_hdr hdr;
8340 u16 qos_ctl;
8341 } STRUCT_PACKED nulldata;
8342 size_t size;
8343
8344 /* Send data frame to poll STA and check whether this frame is ACKed */
8345
8346 os_memset(&nulldata, 0, sizeof(nulldata));
8347
8348 if (qos) {
8349 nulldata.hdr.frame_control =
8350 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8351 WLAN_FC_STYPE_QOS_NULL);
8352 size = sizeof(nulldata);
8353 } else {
8354 nulldata.hdr.frame_control =
8355 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8356 WLAN_FC_STYPE_NULLFUNC);
8357 size = sizeof(struct ieee80211_hdr);
8358 }
8359
8360 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
8361 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8362 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8363 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8364
8cfa3527 8365 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0) < 0)
bcf24348
JB		 8366 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
8367 "send poll frame");
8368}
8369
39718852
JB		 8370static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
8371 int qos)
8372{
8373 struct i802_bss *bss = priv;
8374 struct wpa_driver_nl80211_data *drv = bss->drv;
8375 struct nl_msg *msg;
8376
8377 if (!drv->poll_command_supported) {
8378 nl80211_send_null_frame(bss, own_addr, addr, qos);
8379 return;
8380 }
8381
8382 msg = nlmsg_alloc();
8383 if (!msg)
8384 return;
8385
8386 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
8387
8388 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8389 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8390
8391 send_and_recv_msgs(drv, msg, NULL, NULL);
8392 return;
8393 nla_put_failure:
8394 nlmsg_free(msg);
8395}
8396
bcf24348 8397
29f338af
JM		 8398static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
8399{
8400 struct nl_msg *msg;
8401
8402 msg = nlmsg_alloc();
8403 if (!msg)
8404 return -ENOMEM;
8405
8406 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
8407 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8408 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
8409 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
8410 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8411nla_put_failure:
8412 nlmsg_free(msg);
8413 return -ENOBUFS;
8414}
8415
8416
8417static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
8418 int ctwindow)
8419{
8420 struct i802_bss *bss = priv;
8421
8422 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
8423 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
8424
8425 if (opp_ps != -1 || ctwindow != -1)
8426 return -1; /* Not yet supported */
8427
8428 if (legacy_ps == -1)
8429 return 0;
8430 if (legacy_ps != 0 && legacy_ps != 1)
8431 return -1; /* Not yet supported */
8432
8433 return nl80211_set_power_save(bss, legacy_ps);
8434}
8435
8436
03ea1786
AN		 8437#ifdef CONFIG_TDLS
8438
8439static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
8440 u8 dialog_token, u16 status_code,
8441 const u8 *buf, size_t len)
8442{
8443 struct i802_bss *bss = priv;
8444 struct wpa_driver_nl80211_data *drv = bss->drv;
8445 struct nl_msg *msg;
8446
8447 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8448 return -EOPNOTSUPP;
8449
8450 if (!dst)
8451 return -EINVAL;
8452
8453 msg = nlmsg_alloc();
8454 if (!msg)
8455 return -ENOMEM;
8456
8457 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
8458 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8459 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
8460 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
8461 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
8462 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
8463 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
8464
8465 return send_and_recv_msgs(drv, msg, NULL, NULL);
8466
8467nla_put_failure:
8468 nlmsg_free(msg);
8469 return -ENOBUFS;
8470}
8471
8472
8473static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
8474{
8475 struct i802_bss *bss = priv;
8476 struct wpa_driver_nl80211_data *drv = bss->drv;
8477 struct nl_msg *msg;
8478 enum nl80211_tdls_operation nl80211_oper;
8479
8480 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8481 return -EOPNOTSUPP;
8482
8483 switch (oper) {
8484 case TDLS_DISCOVERY_REQ:
8485 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
8486 break;
8487 case TDLS_SETUP:
8488 nl80211_oper = NL80211_TDLS_SETUP;
8489 break;
8490 case TDLS_TEARDOWN:
8491 nl80211_oper = NL80211_TDLS_TEARDOWN;
8492 break;
8493 case TDLS_ENABLE_LINK:
8494 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
8495 break;
8496 case TDLS_DISABLE_LINK:
8497 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
8498 break;
8499 case TDLS_ENABLE:
8500 return 0;
8501 case TDLS_DISABLE:
8502 return 0;
8503 default:
8504 return -EINVAL;
8505 }
8506
8507 msg = nlmsg_alloc();
8508 if (!msg)
8509 return -ENOMEM;
8510
8511 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
8512 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
8513 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8514 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
8515
8516 return send_and_recv_msgs(drv, msg, NULL, NULL);
8517
8518nla_put_failure:
8519 nlmsg_free(msg);
8520 return -ENOBUFS;
8521}
8522
8523#endif /* CONFIG TDLS */
8524
8525
216eede8
DS		 8526#ifdef ANDROID
8527
8528typedef struct android_wifi_priv_cmd {
8529 char *buf;
8530 int used_len;
8531 int total_len;
8532} android_wifi_priv_cmd;
8533
8534static int drv_errors = 0;
8535
8536static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
8537{
8538 drv_errors++;
8539 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
8540 drv_errors = 0;
8541 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
8542 }
8543}
8544
8545
8546static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
8547{
8548 struct wpa_driver_nl80211_data *drv = bss->drv;
8549 struct ifreq ifr;
8550 android_wifi_priv_cmd priv_cmd;
8551 char buf[MAX_DRV_CMD_SIZE];
8552 int ret;
8553
8554 os_memset(&ifr, 0, sizeof(ifr));
8555 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
8556 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
8557
8558 os_memset(buf, 0, sizeof(buf));
8559 os_strlcpy(buf, cmd, sizeof(buf));
8560
8561 priv_cmd.buf = buf;
8562 priv_cmd.used_len = sizeof(buf);
8563 priv_cmd.total_len = sizeof(buf);
8564 ifr.ifr_data = &priv_cmd;
8565
8566 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
8567 if (ret < 0) {
8568 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
8569 __func__);
8570 wpa_driver_send_hang_msg(drv);
8571 return ret;
8572 }
8573
8574 drv_errors = 0;
8575 return 0;
8576}
8577
8578
8579static int android_pno_start(struct i802_bss *bss,
8580 struct wpa_driver_scan_params *params)
8581{
8582 struct wpa_driver_nl80211_data *drv = bss->drv;
8583 struct ifreq ifr;
8584 android_wifi_priv_cmd priv_cmd;
8585 int ret = 0, i = 0, bp;
8586 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
8587
8588 bp = WEXT_PNOSETUP_HEADER_SIZE;
8589 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
8590 buf[bp++] = WEXT_PNO_TLV_PREFIX;
8591 buf[bp++] = WEXT_PNO_TLV_VERSION;
8592 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
8593 buf[bp++] = WEXT_PNO_TLV_RESERVED;
8594
8595 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
8596 /* Check that there is enough space needed for 1 more SSID, the
8597 * other sections and null termination */
8598 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
8599 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
8600 break;
8601 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
8602 ssid[i].ssid, ssid[i].ssid_len);
8603 buf[bp++] = WEXT_PNO_SSID_SECTION;
8604 buf[bp++] = params->ssids[i].ssid_len;
8605 os_memcpy(&buf[bp], params->ssids[i].ssid,
8606 params->ssids[i].ssid_len);
8607 bp += params->ssids[i].ssid_len;
8608 i++;
8609 }
8610
8611 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
8612 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
8613 WEXT_PNO_SCAN_INTERVAL);
8614 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
8615
8616 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
8617 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
8618 WEXT_PNO_REPEAT);
8619 bp += WEXT_PNO_REPEAT_LENGTH;
8620
8621 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
8622 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
8623 WEXT_PNO_MAX_REPEAT);
8624 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
8625
8626 memset(&ifr, 0, sizeof(ifr));
8627 memset(&priv_cmd, 0, sizeof(priv_cmd));
8628 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
8629
8630 priv_cmd.buf = buf;
8631 priv_cmd.used_len = bp;
8632 priv_cmd.total_len = bp;
8633 ifr.ifr_data = &priv_cmd;
8634
8635 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
8636
8637 if (ret < 0) {
8638 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
8639 ret);
8640 wpa_driver_send_hang_msg(drv);
8641 return ret;
8642 }
8643
8644 drv_errors = 0;
8645
8646 return android_priv_cmd(bss, "PNOFORCE 1");
8647}
8648
8649
8650static int android_pno_stop(struct i802_bss *bss)
8651{
8652 return android_priv_cmd(bss, "PNOFORCE 0");
8653}
8654
8655#endif /* ANDROID */
8656
8657
3f5285e8
JM		 8658const struct wpa_driver_ops wpa_driver_nl80211_ops = {
8659 .name = "nl80211",
8660 .desc = "Linux nl80211/cfg80211",
8661 .get_bssid = wpa_driver_nl80211_get_bssid,
8662 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 8663 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 8664 .scan2 = wpa_driver_nl80211_scan,
d21c63b9
LC		 8665 .sched_scan = wpa_driver_nl80211_sched_scan,
8666 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8
JM		 8667 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
8668 .deauthenticate = wpa_driver_nl80211_deauthenticate,
8669 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 8670 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 8671 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 8672 .global_init = nl80211_global_init,
8673 .global_deinit = nl80211_global_deinit,
8674 .init2 = wpa_driver_nl80211_init,
3f5285e8 8675 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 8676 .get_capa = wpa_driver_nl80211_get_capa,
8677 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 8678 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 8679 .set_country = wpa_driver_nl80211_set_country,
19c3b566 8680 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7
JM		 8681 .if_add = wpa_driver_nl80211_if_add,
8682 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 8683 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 8684 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 8685 .sta_add = wpa_driver_nl80211_sta_add,
8686 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 8687 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 8688 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 8689#ifdef HOSTAPD
8690 .hapd_init = i802_init,
c5121837 8691 .hapd_deinit = i802_deinit,
f7b3920c
JM		 8692 .set_wds_sta = i802_set_wds_sta,
8693#endif /* HOSTAPD */
8694#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 8695 .get_seqnum = i802_get_seqnum,
8696 .flush = i802_flush,
8697 .read_sta_data = i802_read_sta_data,
c5121837
JM		 8698 .get_inact_sec = i802_get_inact_sec,
8699 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 8700 .set_rts = i802_set_rts,
8701 .set_frag = i802_set_frag,
c5121837 8702 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 8703 .set_sta_vlan = i802_set_sta_vlan,
ee7ab173
JB		 8704 .sta_deauth = i802_sta_deauth,
8705 .sta_disassoc = i802_sta_disassoc,
8706#endif /* HOSTAPD || CONFIG_AP */
e3802622 8707 .set_freq = i802_set_freq,
58f6fbe0 8708 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 8709 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 8710 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
8711 .cancel_remain_on_channel =
8712 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 8713 .probe_req_report = wpa_driver_nl80211_probe_req_report,
af473088 8714 .deinit_ap = wpa_driver_nl80211_deinit_ap,
207ef3fb 8715 .resume = wpa_driver_nl80211_resume,
7b90c16a 8716 .send_ft_action = nl80211_send_ft_action,
b625473c 8717 .signal_monitor = nl80211_signal_monitor,
1c5c7273 8718 .signal_poll = nl80211_signal_poll,
b91ab76e 8719 .send_frame = nl80211_send_frame,
57ebba59 8720 .shared_freq = wpa_driver_nl80211_shared_freq,
c55f774d 8721 .set_param = nl80211_set_param,
6859f1cb 8722 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 8723 .add_pmkid = nl80211_add_pmkid,
8724 .remove_pmkid = nl80211_remove_pmkid,
8725 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 8726 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 8727 .poll_client = nl80211_poll_client,
29f338af 8728 .set_p2p_powersave = nl80211_set_p2p_powersave,
03ea1786
AN		 8729#ifdef CONFIG_TDLS
8730 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
8731 .tdls_oper = nl80211_tdls_oper,
8732#endif /* CONFIG_TDLS */
3f5285e8 8733};
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