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bgscan_learn: Prevent infinite busy looping
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
CommitLineData
3f5285e8 1/*
c5121837 2 * Driver interaction with Linux nl80211/cfg80211
3d9975d5 3 * Copyright (c) 2002-2012, 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 8 *
0f3d578e
JM		 9 * This software may be distributed under the terms of the BSD license.
10 * See README for more details.
3f5285e8
JM		 11 */
12
13#include "includes.h"
14#include <sys/ioctl.h>
6859f1cb
BG		 15#include <sys/types.h>
16#include <sys/stat.h>
17#include <fcntl.h>
37b7d082 18#include <net/if.h>
3f5285e8
JM		 19#include <netlink/genl/genl.h>
20#include <netlink/genl/family.h>
21#include <netlink/genl/ctrl.h>
8602b0f2 22#include <linux/rtnetlink.h>
1b648c7e
JM		 23#include <netpacket/packet.h>
24#include <linux/filter.h>
32ab4855 25#include <linux/errqueue.h>
7e45830a 26#include "nl80211_copy.h"
625f587b 27
3f5285e8 28#include "common.h"
1b648c7e 29#include "eloop.h"
f2ed8023 30#include "utils/list.h"
1b648c7e 31#include "common/ieee802_11_defs.h"
9b90955e 32#include "common/ieee802_11_common.h"
f10bfc9a 33#include "l2_packet/l2_packet.h"
e2d02c29 34#include "netlink.h"
34f2f814 35#include "linux_ioctl.h"
e2d02c29
JM		 36#include "radiotap.h"
37#include "radiotap_iter.h"
8401a6b0 38#include "rfkill.h"
1b648c7e 39#include "driver.h"
0915d02c 40
32ab4855
JB		 41#ifndef SO_WIFI_STATUS
42# if defined(__sparc__)
43# define SO_WIFI_STATUS 0x0025
44# elif defined(__parisc__)
45# define SO_WIFI_STATUS 0x4022
46# else
47# define SO_WIFI_STATUS 41
48# endif
49
50# define SCM_WIFI_STATUS SO_WIFI_STATUS
51#endif
52
53#ifndef SO_EE_ORIGIN_TXSTATUS
54#define SO_EE_ORIGIN_TXSTATUS 4
55#endif
56
57#ifndef PACKET_TX_TIMESTAMP
58#define PACKET_TX_TIMESTAMP 16
59#endif
60
216eede8
DS		 61#ifdef ANDROID
62#include "android_drv.h"
df2f9ec6
JM		 63
64/* system/core/libnl_2 in AOSP does not include nla_put_u32() */
65int nla_put_u32(struct nl_msg *msg, int attrtype, uint32_t value)
66{
67 return nla_put(msg, attrtype, sizeof(uint32_t), &value);
68}
216eede8 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;
873d0fcf 198 unsigned int in_deinit:1;
221a59c9 199
341eebee
JB		 200 u8 addr[ETH_ALEN];
201
e4fb2167
JB		 202 int freq;
203
481234cf 204 struct nl_handle *nl_preq, *nl_mgmt;
cc7a48d1 205 struct nl_cb *nl_cb;
e32ad281
JB		 206
207 struct nl80211_wiphy_data *wiphy_data;
208 struct dl_list wiphy_list;
c5121837 209};
3f5285e8
JM		 210
211struct wpa_driver_nl80211_data {
f2ed8023
JM		 212 struct nl80211_global *global;
213 struct dl_list list;
e32ad281 214 struct dl_list wiphy_list;
6859f1cb 215 char phyname[32];
3f5285e8 216 void *ctx;
3f5285e8 217 int ifindex;
7524cfb1 218 int if_removed;
a63063b4 219 int if_disabled;
7d9c3698 220 int ignore_if_down_event;
8401a6b0 221 struct rfkill_data *rfkill;
c2a04078
JM		 222 struct wpa_driver_capa capa;
223 int has_capability;
c2a04078 224
3f5285e8
JM		 225 int operstate;
226
3f5285e8
JM		 227 int scan_complete_events;
228
1afc986d 229 struct nl_cb *nl_cb;
1c873584 230
e6b8efeb 231 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 232 u8 bssid[ETH_ALEN];
233 int associated;
fd05d64e
JM		 234 u8 ssid[32];
235 size_t ssid_len;
b1f625e0
EP		 236 enum nl80211_iftype nlmode;
237 enum nl80211_iftype ap_scan_as_station;
4832ecd7 238 unsigned int assoc_freq;
d2440ba0 239
0915d02c
JM		 240 int monitor_sock;
241 int monitor_ifidx;
3fd1cefb 242 int monitor_refcount;
7da3abe7 243
b3af99d2 244 unsigned int disabled_11b_rates:1;
55777702 245 unsigned int pending_remain_on_chan:1;
dac12351 246 unsigned int in_interface_list:1;
61cbe2ff 247 unsigned int device_ap_sme:1;
39718852 248 unsigned int poll_command_supported:1;
32ab4855 249 unsigned int data_tx_status:1;
536fd62d
JM		 250 unsigned int scan_for_auth:1;
251 unsigned int retry_auth:1;
a11241fa 252 unsigned int use_monitor:1;
a8c5b43a 253 unsigned int ignore_next_local_disconnect:1;
55777702
JM		 254
255 u64 remain_on_chan_cookie;
58f6fbe0 256 u64 send_action_cookie;
c5121837 257
5582a5d1
JB		 258 unsigned int last_mgmt_freq;
259
3812464c
JM		 260 struct wpa_driver_scan_filter *filter_ssids;
261 size_t num_filter_ssids;
262
a2e40bb6
FF		 263 struct i802_bss first_bss;
264
d12dab4c 265 int eapol_tx_sock;
f10bfc9a 266
c5121837 267#ifdef HOSTAPD
c5121837 268 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 269
270 int default_if_indices[16];
271 int *if_indices;
272 int num_if_indices;
273
c5121837
JM		 274 int last_freq;
275 int last_freq_ht;
c5121837 276#endif /* HOSTAPD */
536fd62d
JM		 277
278 /* From failed authentication command */
279 int auth_freq;
280 u8 auth_bssid_[ETH_ALEN];
281 u8 auth_ssid[32];
282 size_t auth_ssid_len;
283 int auth_alg;
284 u8 *auth_ie;
285 size_t auth_ie_len;
286 u8 auth_wep_key[4][16];
287 size_t auth_wep_key_len[4];
288 int auth_wep_tx_keyidx;
289 int auth_local_state_change;
290 int auth_p2p;
3f5285e8
JM		 291};
292
293
294static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
295 void *timeout_ctx);
b1f625e0
EP		 296static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
297 enum nl80211_iftype nlmode);
362f781e 298static int
7524cfb1 299wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 300static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 301 const u8 *addr, int cmd, u16 reason_code,
302 int local_state_change);
460456f8
JM		 303static void nl80211_remove_monitor_interface(
304 struct wpa_driver_nl80211_data *drv);
88df0ef7 305static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f 306 unsigned int freq, unsigned int wait,
b106173a 307 const u8 *buf, size_t buf_len, u64 *cookie,
88df0ef7 308 int no_cck, int no_ack, int offchanok);
5582a5d1 309static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
216eede8
DS		 310#ifdef ANDROID
311static int android_pno_start(struct i802_bss *bss,
312 struct wpa_driver_scan_params *params);
313static int android_pno_stop(struct i802_bss *bss);
314#endif /* ANDROID */
0915d02c 315
072ad14c 316#ifdef HOSTAPD
2135f224
JM		 317static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
318static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 319static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
fbbfcbac
FF		 320static int wpa_driver_nl80211_if_remove(void *priv,
321 enum wpa_driver_if_type type,
322 const char *ifname);
37eb8da9 323#else /* HOSTAPD */
bd2df892
JM		 324static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
325{
326}
327
328static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
329{
330}
331
332static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
37eb8da9
JM		 333{
334 return 0;
335}
072ad14c
JM		 336#endif /* HOSTAPD */
337
e3802622 338static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
4e5cb1a3
JM		 339static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
340 int ifindex, int disabled);
504e905c 341
21bdbe38 342static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
536fd62d
JM		 343static int wpa_driver_nl80211_authenticate_retry(
344 struct wpa_driver_nl80211_data *drv);
21bdbe38 345
3f5285e8 346
b1f625e0
EP		 347static int is_ap_interface(enum nl80211_iftype nlmode)
348{
349 return (nlmode == NL80211_IFTYPE_AP ||
350 nlmode == NL80211_IFTYPE_P2P_GO);
351}
352
353
354static int is_sta_interface(enum nl80211_iftype nlmode)
355{
356 return (nlmode == NL80211_IFTYPE_STATION ||
357 nlmode == NL80211_IFTYPE_P2P_CLIENT);
358}
359
360
b3af99d2
JM		 361static int is_p2p_interface(enum nl80211_iftype nlmode)
362{
363 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
364 nlmode == NL80211_IFTYPE_P2P_GO);
365}
366
367
f5a8d422
JM		 368struct nl80211_bss_info_arg {
369 struct wpa_driver_nl80211_data *drv;
370 struct wpa_scan_results *res;
371 unsigned int assoc_freq;
20f5a4c2 372 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 373};
374
375static int bss_info_handler(struct nl_msg *msg, void *arg);
376
377
6241fcb1
JM		 378/* nl80211 code */
379static int ack_handler(struct nl_msg *msg, void *arg)
380{
381 int *err = arg;
382 *err = 0;
383 return NL_STOP;
384}
385
386static int finish_handler(struct nl_msg *msg, void *arg)
387{
8e8df255
JM		 388 int *ret = arg;
389 *ret = 0;
6241fcb1
JM		 390 return NL_SKIP;
391}
392
393static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
394 void *arg)
395{
396 int *ret = arg;
397 *ret = err->error;
398 return NL_SKIP;
399}
400
5b7b85f6
JM		 401
402static int no_seq_check(struct nl_msg *msg, void *arg)
403{
404 return NL_OK;
405}
406
407
d6c9aab8 408static int send_and_recv(struct nl80211_global *global,
58f6fbe0
JM		 409 struct nl_handle *nl_handle, struct nl_msg *msg,
410 int (*valid_handler)(struct nl_msg *, void *),
411 void *valid_data)
6241fcb1
JM		 412{
413 struct nl_cb *cb;
414 int err = -ENOMEM;
415
d6c9aab8 416 cb = nl_cb_clone(global->nl_cb);
6241fcb1
JM		 417 if (!cb)
418 goto out;
419
58f6fbe0 420 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 421 if (err < 0)
422 goto out;
423
424 err = 1;
425
426 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 427 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 428 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
429
430 if (valid_handler)
431 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
432 valid_handler, valid_data);
433
434 while (err > 0)
58f6fbe0 435 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 436 out:
437 nl_cb_put(cb);
438 nlmsg_free(msg);
439 return err;
440}
441
442
d6c9aab8
JB		 443static int send_and_recv_msgs_global(struct nl80211_global *global,
444 struct nl_msg *msg,
445 int (*valid_handler)(struct nl_msg *, void *),
446 void *valid_data)
447{
481234cf 448 return send_and_recv(global, global->nl, msg, valid_handler,
d6c9aab8
JB		 449 valid_data);
450}
451
452
58f6fbe0
JM		 453static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
454 struct nl_msg *msg,
455 int (*valid_handler)(struct nl_msg *, void *),
456 void *valid_data)
457{
481234cf 458 return send_and_recv(drv->global, drv->global->nl, msg,
d6c9aab8 459 valid_handler, valid_data);
58f6fbe0
JM		 460}
461
462
97865538
JM		 463struct family_data {
464 const char *group;
465 int id;
466};
467
468
469static int family_handler(struct nl_msg *msg, void *arg)
470{
471 struct family_data *res = arg;
472 struct nlattr *tb[CTRL_ATTR_MAX + 1];
473 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
474 struct nlattr *mcgrp;
475 int i;
476
477 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
478 genlmsg_attrlen(gnlh, 0), NULL);
479 if (!tb[CTRL_ATTR_MCAST_GROUPS])
480 return NL_SKIP;
481
482 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
483 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
484 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
485 nla_len(mcgrp), NULL);
486 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
487 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
488 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
489 res->group,
490 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
491 continue;
492 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
493 break;
494 };
495
496 return NL_SKIP;
497}
498
499
d6c9aab8 500static int nl_get_multicast_id(struct nl80211_global *global,
97865538
JM		 501 const char *family, const char *group)
502{
503 struct nl_msg *msg;
504 int ret = -1;
505 struct family_data res = { group, -ENOENT };
506
507 msg = nlmsg_alloc();
508 if (!msg)
509 return -ENOMEM;
481234cf 510 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
97865538
JM		 511 0, 0, CTRL_CMD_GETFAMILY, 0);
512 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
513
d6c9aab8 514 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
97865538
JM		 515 msg = NULL;
516 if (ret == 0)
517 ret = res.id;
518
519nla_put_failure:
520 nlmsg_free(msg);
521 return ret;
522}
523
524
9fb04070
JM		 525static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
526 struct nl_msg *msg, int flags, uint8_t cmd)
527{
335d42b1 528 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
276e2d67 529 0, flags, cmd, 0);
9fb04070
JM		 530}
531
532
e32ad281
JB		 533struct wiphy_idx_data {
534 int wiphy_idx;
535};
536
537
538static int netdev_info_handler(struct nl_msg *msg, void *arg)
539{
540 struct nlattr *tb[NL80211_ATTR_MAX + 1];
541 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
542 struct wiphy_idx_data *info = arg;
543
544 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
545 genlmsg_attrlen(gnlh, 0), NULL);
546
547 if (tb[NL80211_ATTR_WIPHY])
548 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
549
550 return NL_SKIP;
551}
552
553
554static int nl80211_get_wiphy_index(struct i802_bss *bss)
555{
556 struct nl_msg *msg;
557 struct wiphy_idx_data data = {
558 .wiphy_idx = -1,
559 };
560
561 msg = nlmsg_alloc();
562 if (!msg)
563 return -1;
564
565 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
566
567 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
568
569 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
570 return data.wiphy_idx;
571 msg = NULL;
572nla_put_failure:
573 nlmsg_free(msg);
574 return -1;
575}
576
577
578static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
579 struct nl80211_wiphy_data *w)
580{
581 struct nl_msg *msg;
582 int ret = -1;
583
584 msg = nlmsg_alloc();
585 if (!msg)
586 return -1;
587
588 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
589
590 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
591
481234cf 592 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
e32ad281
JB		 593 msg = NULL;
594 if (ret) {
595 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
596 "failed: ret=%d (%s)",
597 ret, strerror(-ret));
598 goto nla_put_failure;
599 }
600 ret = 0;
601nla_put_failure:
602 nlmsg_free(msg);
603 return ret;
604}
605
606
607static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
608{
609 struct nl80211_wiphy_data *w = eloop_ctx;
610
ee9fc67a 611 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
e32ad281
JB		 612
613 nl_recvmsgs(handle, w->nl_cb);
614}
615
616
617static int process_beacon_event(struct nl_msg *msg, void *arg)
618{
619 struct nl80211_wiphy_data *w = arg;
620 struct wpa_driver_nl80211_data *drv;
621 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
622 struct nlattr *tb[NL80211_ATTR_MAX + 1];
623 union wpa_event_data event;
624
625 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
626 genlmsg_attrlen(gnlh, 0), NULL);
627
628 if (gnlh->cmd != NL80211_CMD_FRAME) {
629 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
630 gnlh->cmd);
631 return NL_SKIP;
632 }
633
634 if (!tb[NL80211_ATTR_FRAME])
635 return NL_SKIP;
636
637 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
638 wiphy_list) {
639 os_memset(&event, 0, sizeof(event));
640 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
641 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
642 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
643 }
644
645 return NL_SKIP;
646}
647
648
649static struct nl80211_wiphy_data *
650nl80211_get_wiphy_data_ap(struct i802_bss *bss)
651{
652 static DEFINE_DL_LIST(nl80211_wiphys);
653 struct nl80211_wiphy_data *w;
654 int wiphy_idx, found = 0;
655 struct i802_bss *tmp_bss;
656
657 if (bss->wiphy_data != NULL)
658 return bss->wiphy_data;
659
660 wiphy_idx = nl80211_get_wiphy_index(bss);
661
662 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
663 if (w->wiphy_idx == wiphy_idx)
664 goto add;
665 }
666
667 /* alloc new one */
668 w = os_zalloc(sizeof(*w));
669 if (w == NULL)
670 return NULL;
671 w->wiphy_idx = wiphy_idx;
672 dl_list_init(&w->bsss);
673 dl_list_init(&w->drvs);
674
675 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
676 if (!w->nl_cb) {
677 os_free(w);
678 return NULL;
679 }
680 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
681 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
682 w);
683
481234cf
JM		 684 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
685 "wiphy beacons");
686 if (w->nl_beacons == NULL) {
e32ad281
JB		 687 os_free(w);
688 return NULL;
689 }
690
691 if (nl80211_register_beacons(bss->drv, w)) {
692 nl_destroy_handles(&w->nl_beacons);
693 os_free(w);
694 return NULL;
695 }
696
481234cf
JM		 697 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons),
698 nl80211_recv_beacons, w, w->nl_beacons);
e32ad281
JB		 699
700 dl_list_add(&nl80211_wiphys, &w->list);
701
702add:
703 /* drv entry for this bss already there? */
704 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
705 if (tmp_bss->drv == bss->drv) {
706 found = 1;
707 break;
708 }
709 }
710 /* if not add it */
711 if (!found)
712 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
713
714 dl_list_add(&w->bsss, &bss->wiphy_list);
715 bss->wiphy_data = w;
716 return w;
717}
718
719
720static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
721{
722 struct nl80211_wiphy_data *w = bss->wiphy_data;
723 struct i802_bss *tmp_bss;
724 int found = 0;
725
726 if (w == NULL)
727 return;
728 bss->wiphy_data = NULL;
729 dl_list_del(&bss->wiphy_list);
730
731 /* still any for this drv present? */
732 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
733 if (tmp_bss->drv == bss->drv) {
734 found = 1;
735 break;
736 }
737 }
738 /* if not remove it */
739 if (!found)
740 dl_list_del(&bss->drv->wiphy_list);
741
742 if (!dl_list_empty(&w->bsss))
743 return;
744
481234cf 745 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons));
e32ad281
JB		 746
747 nl_cb_put(w->nl_cb);
748 nl_destroy_handles(&w->nl_beacons);
749 dl_list_del(&w->list);
750 os_free(w);
751}
752
753
3f5285e8
JM		 754static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
755{
a2e40bb6
FF		 756 struct i802_bss *bss = priv;
757 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 758 if (!drv->associated)
759 return -1;
760 os_memcpy(bssid, drv->bssid, ETH_ALEN);
761 return 0;
3f5285e8
JM		 762}
763
764
3f5285e8
JM		 765static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
766{
a2e40bb6
FF		 767 struct i802_bss *bss = priv;
768 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 769 if (!drv->associated)
770 return -1;
771 os_memcpy(ssid, drv->ssid, drv->ssid_len);
772 return drv->ssid_len;
3f5285e8
JM		 773}
774
775
7524cfb1 776static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 777 char *buf, size_t len, int del)
3f5285e8
JM		 778{
779 union wpa_event_data event;
780
781 os_memset(&event, 0, sizeof(event));
782 if (len > sizeof(event.interface_status.ifname))
783 len = sizeof(event.interface_status.ifname) - 1;
784 os_memcpy(event.interface_status.ifname, buf, len);
785 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
786 EVENT_INTERFACE_ADDED;
787
788 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
789 del ? "DEL" : "NEW",
790 event.interface_status.ifname,
791 del ? "removed" : "added");
792
a2e40bb6 793 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
d1f4942b
JM		 794 if (del) {
795 if (drv->if_removed) {
796 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
797 "already set - ignore event");
798 return;
799 }
7524cfb1 800 drv->if_removed = 1;
d1f4942b
JM		 801 } else {
802 if (if_nametoindex(drv->first_bss.ifname) == 0) {
803 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
804 "does not exist - ignore "
805 "RTM_NEWLINK",
806 drv->first_bss.ifname);
807 return;
808 }
809 if (!drv->if_removed) {
810 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
811 "already cleared - ignore event");
812 return;
813 }
7524cfb1 814 drv->if_removed = 0;
d1f4942b 815 }
7524cfb1
JM		 816 }
817
08063178 818 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 819}
820
821
7524cfb1 822static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 823 u8 *buf, size_t len)
7524cfb1 824{
62d680c3 825 int attrlen, rta_len;
7524cfb1
JM		 826 struct rtattr *attr;
827
62d680c3
JM		 828 attrlen = len;
829 attr = (struct rtattr *) buf;
7524cfb1
JM		 830
831 rta_len = RTA_ALIGN(sizeof(struct rtattr));
832 while (RTA_OK(attr, attrlen)) {
833 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 834 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 835 == 0)
836 return 1;
837 else
838 break;
839 }
840 attr = RTA_NEXT(attr, attrlen);
841 }
842
843 return 0;
844}
845
846
847static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 848 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 849{
850 if (drv->ifindex == ifindex)
851 return 1;
852
62d680c3 853 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 854 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 855 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
856 "interface");
857 wpa_driver_nl80211_finish_drv_init(drv);
858 return 1;
859 }
860
861 return 0;
862}
863
864
36d84860
BG		 865static struct wpa_driver_nl80211_data *
866nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
867{
868 struct wpa_driver_nl80211_data *drv;
869 dl_list_for_each(drv, &global->interfaces,
870 struct wpa_driver_nl80211_data, list) {
871 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
872 have_ifidx(drv, idx))
873 return drv;
874 }
875 return NULL;
876}
877
878
62d680c3
JM		 879static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
880 struct ifinfomsg *ifi,
881 u8 *buf, size_t len)
3f5285e8 882{
36d84860
BG		 883 struct nl80211_global *global = ctx;
884 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 885 int attrlen, rta_len;
886 struct rtattr *attr;
97cfcf64 887 u32 brid = 0;
aef85ba2 888 char namebuf[IFNAMSIZ];
3f5285e8 889
36d84860
BG		 890 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
891 if (!drv) {
97cfcf64
B		 892 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
893 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 894 return;
895 }
896
897 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
898 "(%s%s%s%s)",
899 drv->operstate, ifi->ifi_flags,
900 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
901 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
902 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
903 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 904
905 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
59d24925
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 down "
910 "event since interface %s is up", namebuf);
911 return;
912 }
a63063b4 913 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 914 if (drv->ignore_if_down_event) {
915 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
916 "event generated by mode change");
917 drv->ignore_if_down_event = 0;
918 } else {
919 drv->if_disabled = 1;
920 wpa_supplicant_event(drv->ctx,
921 EVENT_INTERFACE_DISABLED, NULL);
922 }
a63063b4
JM		 923 }
924
925 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
aef85ba2
JM		 926 if (if_indextoname(ifi->ifi_index, namebuf) &&
927 linux_iface_up(drv->global->ioctl_sock,
928 drv->first_bss.ifname) == 0) {
929 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
930 "event since interface %s is down",
931 namebuf);
d1f4942b
JM		 932 } else if (if_nametoindex(drv->first_bss.ifname) == 0) {
933 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
934 "event since interface %s does not exist",
935 drv->first_bss.ifname);
936 } else if (drv->if_removed) {
937 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
938 "event since interface %s is marked "
939 "removed", drv->first_bss.ifname);
aef85ba2
JM		 940 } else {
941 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
942 drv->if_disabled = 0;
943 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
944 NULL);
945 }
a63063b4
JM		 946 }
947
3f5285e8
JM		 948 /*
949 * Some drivers send the association event before the operup event--in
950 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
951 * fails. This will hit us when wpa_supplicant does not need to do
952 * IEEE 802.1X authentication
953 */
954 if (drv->operstate == 1 &&
955 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
956 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 957 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 958 -1, IF_OPER_UP);
3f5285e8 959
62d680c3
JM		 960 attrlen = len;
961 attr = (struct rtattr *) buf;
3f5285e8
JM		 962 rta_len = RTA_ALIGN(sizeof(struct rtattr));
963 while (RTA_OK(attr, attrlen)) {
d8816397 964 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 965 wpa_driver_nl80211_event_link(
08063178 966 drv,
7524cfb1
JM		 967 ((char *) attr) + rta_len,
968 attr->rta_len - rta_len, 0);
97cfcf64
B		 969 } else if (attr->rta_type == IFLA_MASTER)
970 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 971 attr = RTA_NEXT(attr, attrlen);
972 }
97cfcf64
B		 973
974 if (ifi->ifi_family == AF_BRIDGE && brid) {
975 /* device has been added to bridge */
97cfcf64
B		 976 if_indextoname(brid, namebuf);
977 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
978 brid, namebuf);
979 add_ifidx(drv, brid);
980 }
3f5285e8
JM		 981}
982
983
62d680c3
JM		 984static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
985 struct ifinfomsg *ifi,
986 u8 *buf, size_t len)
3f5285e8 987{
36d84860
BG		 988 struct nl80211_global *global = ctx;
989 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 990 int attrlen, rta_len;
991 struct rtattr *attr;
97cfcf64 992 u32 brid = 0;
3f5285e8 993
36d84860
BG		 994 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
995 if (!drv) {
996 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
997 "foreign ifindex %d", ifi->ifi_index);
998 return;
999 }
1000
62d680c3
JM		 1001 attrlen = len;
1002 attr = (struct rtattr *) buf;
3f5285e8
JM		 1003
1004 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1005 while (RTA_OK(attr, attrlen)) {
1006 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 1007 wpa_driver_nl80211_event_link(
08063178 1008 drv,
7524cfb1
JM		 1009 ((char *) attr) + rta_len,
1010 attr->rta_len - rta_len, 1);
97cfcf64
B		 1011 } else if (attr->rta_type == IFLA_MASTER)
1012 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 1013 attr = RTA_NEXT(attr, attrlen);
1014 }
97cfcf64
B		 1015
1016 if (ifi->ifi_family == AF_BRIDGE && brid) {
1017 /* device has been removed from bridge */
1018 char namebuf[IFNAMSIZ];
1019 if_indextoname(brid, namebuf);
1020 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1021 "%s", brid, namebuf);
1022 del_ifidx(drv, brid);
1023 }
3f5285e8
JM		 1024}
1025
1026
c2a04078
JM		 1027static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1028 const u8 *frame, size_t len)
1029{
1030 const struct ieee80211_mgmt *mgmt;
1031 union wpa_event_data event;
1032
7d81932d 1033 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
c2a04078
JM		 1034 mgmt = (const struct ieee80211_mgmt *) frame;
1035 if (len < 24 + sizeof(mgmt->u.auth)) {
1036 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1037 "frame");
1038 return;
1039 }
1040
e6b8efeb 1041 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 1042 os_memset(&event, 0, sizeof(event));
1043 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1044 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
569fed90
JM		 1045 event.auth.auth_transaction =
1046 le_to_host16(mgmt->u.auth.auth_transaction);
c2a04078
JM		 1047 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1048 if (len > 24 + sizeof(mgmt->u.auth)) {
1049 event.auth.ies = mgmt->u.auth.variable;
1050 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1051 }
1052
1053 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1054}
1055
1056
f5a8d422
JM		 1057static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1058{
1059 struct nl_msg *msg;
1060 int ret;
1061 struct nl80211_bss_info_arg arg;
1062
1063 os_memset(&arg, 0, sizeof(arg));
1064 msg = nlmsg_alloc();
1065 if (!msg)
1066 goto nla_put_failure;
1067
9fb04070 1068 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 1069 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1070
1071 arg.drv = drv;
1072 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1073 msg = NULL;
1074 if (ret == 0) {
1075 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1076 "associated BSS from scan results: %u MHz",
1077 arg.assoc_freq);
1078 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
1079 }
1080 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1081 "(%s)", ret, strerror(-ret));
1082nla_put_failure:
1083 nlmsg_free(msg);
1084 return drv->assoc_freq;
1085}
1086
1087
c2a04078
JM		 1088static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1089 const u8 *frame, size_t len)
1090{
1091 const struct ieee80211_mgmt *mgmt;
1092 union wpa_event_data event;
1093 u16 status;
1094
7d81932d 1095 wpa_printf(MSG_DEBUG, "nl80211: Associate event");
c2a04078
JM		 1096 mgmt = (const struct ieee80211_mgmt *) frame;
1097 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1098 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1099 "frame");
1100 return;
1101 }
1102
1103 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1104 if (status != WLAN_STATUS_SUCCESS) {
efa46078 1105 os_memset(&event, 0, sizeof(event));
59ddf221 1106 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 1107 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1108 event.assoc_reject.resp_ies =
1109 (u8 *) mgmt->u.assoc_resp.variable;
1110 event.assoc_reject.resp_ies_len =
1111 len - 24 - sizeof(mgmt->u.assoc_resp);
1112 }
1113 event.assoc_reject.status_code = status;
1114
1115 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 1116 return;
1117 }
1118
1119 drv->associated = 1;
1120 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1121
1122 os_memset(&event, 0, sizeof(event));
1123 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1124 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1125 event.assoc_info.resp_ies_len =
efa46078 1126 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 1127 }
1128
4832ecd7
JM		 1129 event.assoc_info.freq = drv->assoc_freq;
1130
c2a04078
JM		 1131 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1132}
1133
c1bb3e0a 1134
da72a1c1
ZY		 1135static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1136 enum nl80211_commands cmd, struct nlattr *status,
1137 struct nlattr *addr, struct nlattr *req_ie,
1138 struct nlattr *resp_ie)
1139{
1140 union wpa_event_data event;
1141
7da2c527
JM		 1142 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1143 /*
1144 * Avoid reporting two association events that would confuse
1145 * the core code.
1146 */
1147 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1148 "when using userspace SME", cmd);
1149 return;
1150 }
1151
7d81932d
JM		 1152 if (cmd == NL80211_CMD_CONNECT)
1153 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1154 else if (cmd == NL80211_CMD_ROAM)
1155 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1156
da72a1c1
ZY		 1157 os_memset(&event, 0, sizeof(event));
1158 if (cmd == NL80211_CMD_CONNECT &&
1159 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 1160 if (addr)
1161 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 1162 if (resp_ie) {
1163 event.assoc_reject.resp_ies = nla_data(resp_ie);
1164 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1165 }
1166 event.assoc_reject.status_code = nla_get_u16(status);
1167 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1168 return;
1169 }
1170
1171 drv->associated = 1;
1172 if (addr)
1173 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1174
1175 if (req_ie) {
1176 event.assoc_info.req_ies = nla_data(req_ie);
1177 event.assoc_info.req_ies_len = nla_len(req_ie);
1178 }
1179 if (resp_ie) {
1180 event.assoc_info.resp_ies = nla_data(resp_ie);
1181 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1182 }
1183
f5a8d422
JM		 1184 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1185
da72a1c1
ZY		 1186 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1187}
c2a04078 1188
c1bb3e0a 1189
20f5a4c2 1190static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
3d9975d5
JM		 1191 struct nlattr *reason, struct nlattr *addr,
1192 struct nlattr *by_ap)
20f5a4c2
JM		 1193{
1194 union wpa_event_data data;
a8c5b43a 1195 unsigned int locally_generated = by_ap == NULL;
20f5a4c2
JM		 1196
1197 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1198 /*
1199 * Avoid reporting two disassociation events that could
1200 * confuse the core code.
1201 */
1202 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1203 "event when using userspace SME");
1204 return;
1205 }
1206
a8c5b43a
CW		 1207 if (drv->ignore_next_local_disconnect) {
1208 drv->ignore_next_local_disconnect = 0;
1209 if (locally_generated) {
1210 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1211 "event triggered during reassociation");
1212 return;
1213 }
1214 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1215 "disconnect but got another disconnect "
1216 "event first");
1217 }
1218
7d81932d 1219 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
20f5a4c2
JM		 1220 drv->associated = 0;
1221 os_memset(&data, 0, sizeof(data));
1222 if (reason)
2e9f078c
JM		 1223 data.deauth_info.reason_code = nla_get_u16(reason);
1224 data.deauth_info.locally_generated = by_ap == NULL;
1225 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
20f5a4c2
JM		 1226}
1227
1228
1b487b8b
TP		 1229static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1230 struct nlattr *freq, struct nlattr *type)
1231{
1232 union wpa_event_data data;
1233 int ht_enabled = 1;
1234 int chan_offset = 0;
1235
1236 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1237
1238 if (!freq || !type)
1239 return;
1240
1241 switch (nla_get_u32(type)) {
1242 case NL80211_CHAN_NO_HT:
1243 ht_enabled = 0;
1244 break;
1245 case NL80211_CHAN_HT20:
1246 break;
1247 case NL80211_CHAN_HT40PLUS:
1248 chan_offset = 1;
1249 break;
1250 case NL80211_CHAN_HT40MINUS:
1251 chan_offset = -1;
1252 break;
1253 }
1254
1255 data.ch_switch.freq = nla_get_u32(freq);
1256 data.ch_switch.ht_enabled = ht_enabled;
1257 data.ch_switch.ch_offset = chan_offset;
1258
1259 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1260}
1261
1262
da1fb17c
JM		 1263static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1264 enum nl80211_commands cmd, struct nlattr *addr)
1265{
1266 union wpa_event_data event;
1267 enum wpa_event_type ev;
1268
1269 if (nla_len(addr) != ETH_ALEN)
1270 return;
1271
1272 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1273 cmd, MAC2STR((u8 *) nla_data(addr)));
1274
1275 if (cmd == NL80211_CMD_AUTHENTICATE)
1276 ev = EVENT_AUTH_TIMED_OUT;
1277 else if (cmd == NL80211_CMD_ASSOCIATE)
1278 ev = EVENT_ASSOC_TIMED_OUT;
1279 else
1280 return;
1281
1282 os_memset(&event, 0, sizeof(event));
1283 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1284 wpa_supplicant_event(drv->ctx, ev, &event);
1285}
1286
1287
5582a5d1 1288static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
da873dbb
JB		 1289 struct nlattr *freq, struct nlattr *sig,
1290 const u8 *frame, size_t len)
58f6fbe0
JM		 1291{
1292 const struct ieee80211_mgmt *mgmt;
1293 union wpa_event_data event;
1294 u16 fc, stype;
da873dbb 1295 int ssi_signal = 0;
58f6fbe0 1296
7d81932d 1297 wpa_printf(MSG_DEBUG, "nl80211: Frame event");
58f6fbe0
JM		 1298 mgmt = (const struct ieee80211_mgmt *) frame;
1299 if (len < 24) {
1300 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1301 return;
1302 }
1303
1304 fc = le_to_host16(mgmt->frame_control);
1305 stype = WLAN_FC_GET_STYPE(fc);
1306
da873dbb
JB		 1307 if (sig)
1308 ssi_signal = (s32) nla_get_u32(sig);
1309
58f6fbe0 1310 os_memset(&event, 0, sizeof(event));
5582a5d1 1311 if (freq) {
58f6fbe0 1312 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 1313 drv->last_mgmt_freq = event.rx_action.freq;
1314 }
1315 if (stype == WLAN_FC_STYPE_ACTION) {
1316 event.rx_action.da = mgmt->da;
1317 event.rx_action.sa = mgmt->sa;
1318 event.rx_action.bssid = mgmt->bssid;
1319 event.rx_action.category = mgmt->u.action.category;
1320 event.rx_action.data = &mgmt->u.action.category + 1;
1321 event.rx_action.len = frame + len - event.rx_action.data;
1322 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1323 } else {
1324 event.rx_mgmt.frame = frame;
1325 event.rx_mgmt.frame_len = len;
da873dbb 1326 event.rx_mgmt.ssi_signal = ssi_signal;
5582a5d1
JB		 1327 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1328 }
58f6fbe0
JM		 1329}
1330
1331
a11241fa
JB		 1332static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1333 struct nlattr *cookie, const u8 *frame,
1334 size_t len, struct nlattr *ack)
58f6fbe0
JM		 1335{
1336 union wpa_event_data event;
1337 const struct ieee80211_hdr *hdr;
1338 u16 fc;
58f6fbe0 1339
7d81932d 1340 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
a11241fa
JB		 1341 if (!is_ap_interface(drv->nlmode)) {
1342 u64 cookie_val;
58f6fbe0 1343
a11241fa
JB		 1344 if (!cookie)
1345 return;
1346
1347 cookie_val = nla_get_u64(cookie);
1348 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1349 " cookie=0%llx%s (ack=%d)",
1350 (long long unsigned int) cookie_val,
1351 cookie_val == drv->send_action_cookie ?
1352 " (match)" : " (unknown)", ack != NULL);
1353 if (cookie_val != drv->send_action_cookie)
1354 return;
1355 }
58f6fbe0
JM		 1356
1357 hdr = (const struct ieee80211_hdr *) frame;
1358 fc = le_to_host16(hdr->frame_control);
1359
1360 os_memset(&event, 0, sizeof(event));
1361 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1362 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1363 event.tx_status.dst = hdr->addr1;
1364 event.tx_status.data = frame;
1365 event.tx_status.data_len = len;
1366 event.tx_status.ack = ack != NULL;
1367 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1368}
1369
1370
0544b242
JM		 1371static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1372 enum wpa_event_type type,
1373 const u8 *frame, size_t len)
1374{
1375 const struct ieee80211_mgmt *mgmt;
1376 union wpa_event_data event;
1377 const u8 *bssid = NULL;
1378 u16 reason_code = 0;
1379
7d81932d
JM		 1380 if (type == EVENT_DEAUTH)
1381 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1382 else
1383 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1384
cb30b297
PS		 1385 mgmt = (const struct ieee80211_mgmt *) frame;
1386 if (len >= 24) {
1387 bssid = mgmt->bssid;
1388
1389 if (drv->associated != 0 &&
1390 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1391 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1392 /*
1393 * We have presumably received this deauth as a
1394 * response to a clear_state_mismatch() outgoing
1395 * deauth. Don't let it take us offline!
1396 */
1397 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1398 "from Unknown BSSID " MACSTR " -- ignoring",
1399 MAC2STR(bssid));
1400 return;
1401 }
1402 }
1403
0544b242
JM		 1404 drv->associated = 0;
1405 os_memset(&event, 0, sizeof(event));
1406
0544b242
JM		 1407 /* Note: Same offset for Reason Code in both frame subtypes */
1408 if (len >= 24 + sizeof(mgmt->u.deauth))
1409 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1410
1411 if (type == EVENT_DISASSOC) {
3d9975d5
JM		 1412 event.disassoc_info.locally_generated =
1413 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1414 event.disassoc_info.addr = bssid;
1415 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1416 if (frame + len > mgmt->u.disassoc.variable) {
1417 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1418 event.disassoc_info.ie_len = frame + len -
1419 mgmt->u.disassoc.variable;
1420 }
0544b242 1421 } else {
3d9975d5
JM		 1422 event.deauth_info.locally_generated =
1423 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1424 event.deauth_info.addr = bssid;
1425 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1426 if (frame + len > mgmt->u.deauth.variable) {
1427 event.deauth_info.ie = mgmt->u.deauth.variable;
1428 event.deauth_info.ie_len = frame + len -
1429 mgmt->u.deauth.variable;
1430 }
0544b242
JM		 1431 }
1432
1433 wpa_supplicant_event(drv->ctx, type, &event);
1434}
1435
1436
7d878ca7
JM		 1437static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1438 enum wpa_event_type type,
1439 const u8 *frame, size_t len)
1440{
1441 const struct ieee80211_mgmt *mgmt;
1442 union wpa_event_data event;
1443 u16 reason_code = 0;
1444
7d81932d
JM		 1445 if (type == EVENT_UNPROT_DEAUTH)
1446 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1447 else
1448 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1449
7d878ca7
JM		 1450 if (len < 24)
1451 return;
1452
1453 mgmt = (const struct ieee80211_mgmt *) frame;
1454
1455 os_memset(&event, 0, sizeof(event));
1456 /* Note: Same offset for Reason Code in both frame subtypes */
1457 if (len >= 24 + sizeof(mgmt->u.deauth))
1458 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1459
1460 if (type == EVENT_UNPROT_DISASSOC) {
1461 event.unprot_disassoc.sa = mgmt->sa;
1462 event.unprot_disassoc.da = mgmt->da;
1463 event.unprot_disassoc.reason_code = reason_code;
1464 } else {
1465 event.unprot_deauth.sa = mgmt->sa;
1466 event.unprot_deauth.da = mgmt->da;
1467 event.unprot_deauth.reason_code = reason_code;
1468 }
1469
1470 wpa_supplicant_event(drv->ctx, type, &event);
1471}
1472
1473
c2a04078 1474static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 1475 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1476 struct nlattr *addr, struct nlattr *timed_out,
1477 struct nlattr *freq, struct nlattr *ack,
da873dbb 1478 struct nlattr *cookie, struct nlattr *sig)
c2a04078 1479{
da1fb17c
JM		 1480 if (timed_out && addr) {
1481 mlme_timeout_event(drv, cmd, addr);
1482 return;
1483 }
1484
c2a04078
JM		 1485 if (frame == NULL) {
1486 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1487 "data", cmd);
1488 return;
1489 }
1490
1491 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1492 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1493 nla_data(frame), nla_len(frame));
1494
1495 switch (cmd) {
1496 case NL80211_CMD_AUTHENTICATE:
1497 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1498 break;
1499 case NL80211_CMD_ASSOCIATE:
1500 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1501 break;
1502 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1503 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1504 nla_data(frame), nla_len(frame));
c2a04078
JM		 1505 break;
1506 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1507 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1508 nla_data(frame), nla_len(frame));
c2a04078 1509 break;
bd94971e 1510 case NL80211_CMD_FRAME:
da873dbb
JB		 1511 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1512 nla_len(frame));
58f6fbe0 1513 break;
bd94971e 1514 case NL80211_CMD_FRAME_TX_STATUS:
a11241fa
JB		 1515 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1516 nla_len(frame), ack);
58f6fbe0 1517 break;
7d878ca7
JM		 1518 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1519 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1520 nla_data(frame), nla_len(frame));
1521 break;
1522 case NL80211_CMD_UNPROT_DISASSOCIATE:
1523 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1524 nla_data(frame), nla_len(frame));
1525 break;
c2a04078
JM		 1526 default:
1527 break;
1528 }
1529}
1530
1531
35583f3f
JM		 1532static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1533 struct nlattr *tb[])
1534{
1535 union wpa_event_data data;
1536
1537 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1538 os_memset(&data, 0, sizeof(data));
1539 if (tb[NL80211_ATTR_MAC]) {
1540 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1541 nla_data(tb[NL80211_ATTR_MAC]),
1542 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1543 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1544 }
1545 if (tb[NL80211_ATTR_KEY_SEQ]) {
1546 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1547 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1548 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1549 }
1550 if (tb[NL80211_ATTR_KEY_TYPE]) {
1551 enum nl80211_key_type key_type =
1552 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1553 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1554 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1555 data.michael_mic_failure.unicast = 1;
1556 } else
1557 data.michael_mic_failure.unicast = 1;
1558
1559 if (tb[NL80211_ATTR_KEY_IDX]) {
1560 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1561 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1562 }
1563
1564 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1565}
1566
1567
5cc4d64b
JM		 1568static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1569 struct nlattr *tb[])
1570{
1571 if (tb[NL80211_ATTR_MAC] == NULL) {
1572 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1573 "event");
1574 return;
1575 }
1576 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1577 drv->associated = 1;
1578 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1579 MAC2STR(drv->bssid));
1580
1581 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1582}
1583
1584
55777702
JM		 1585static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1586 int cancel_event, struct nlattr *tb[])
1587{
1588 unsigned int freq, chan_type, duration;
1589 union wpa_event_data data;
1590 u64 cookie;
1591
1592 if (tb[NL80211_ATTR_WIPHY_FREQ])
1593 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1594 else
1595 freq = 0;
1596
1597 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1598 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1599 else
1600 chan_type = 0;
1601
1602 if (tb[NL80211_ATTR_DURATION])
1603 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1604 else
1605 duration = 0;
1606
1607 if (tb[NL80211_ATTR_COOKIE])
1608 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1609 else
1610 cookie = 0;
1611
1612 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1613 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1614 cancel_event, freq, chan_type, duration,
1615 (long long unsigned int) cookie,
1616 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1617
1618 if (cookie != drv->remain_on_chan_cookie)
1619 return; /* not for us */
1620
531f0331
JB		 1621 if (cancel_event)
1622 drv->pending_remain_on_chan = 0;
55777702
JM		 1623
1624 os_memset(&data, 0, sizeof(data));
1625 data.remain_on_channel.freq = freq;
1626 data.remain_on_channel.duration = duration;
1627 wpa_supplicant_event(drv->ctx, cancel_event ?
1628 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1629 EVENT_REMAIN_ON_CHANNEL, &data);
1630}
1631
1632
8d923a4a
JM		 1633static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1634 struct nlattr *tb[])
1635{
1636 union wpa_event_data event;
1637 struct nlattr *nl;
1638 int rem;
1639 struct scan_info *info;
1640#define MAX_REPORT_FREQS 50
1641 int freqs[MAX_REPORT_FREQS];
1642 int num_freqs = 0;
1643
536fd62d
JM		 1644 if (drv->scan_for_auth) {
1645 drv->scan_for_auth = 0;
1646 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1647 "cfg80211 BSS entry");
1648 wpa_driver_nl80211_authenticate_retry(drv);
1649 return;
1650 }
1651
8d923a4a
JM		 1652 os_memset(&event, 0, sizeof(event));
1653 info = &event.scan_info;
1654 info->aborted = aborted;
1655
1656 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1657 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1658 struct wpa_driver_scan_ssid *s =
1659 &info->ssids[info->num_ssids];
1660 s->ssid = nla_data(nl);
1661 s->ssid_len = nla_len(nl);
1662 info->num_ssids++;
1663 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1664 break;
1665 }
1666 }
1667 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1668 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1669 {
1670 freqs[num_freqs] = nla_get_u32(nl);
1671 num_freqs++;
1672 if (num_freqs == MAX_REPORT_FREQS - 1)
1673 break;
1674 }
1675 info->freqs = freqs;
1676 info->num_freqs = num_freqs;
1677 }
1678 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1679}
1680
1681
60a972a6
JM		 1682static int get_link_signal(struct nl_msg *msg, void *arg)
1683{
1684 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1685 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1686 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1687 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1688 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1689 };
7ee35bf3
PS		 1690 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1691 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1692 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1693 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1694 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1695 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1696 };
1c5c7273 1697 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1698
1699 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1700 genlmsg_attrlen(gnlh, 0), NULL);
1701 if (!tb[NL80211_ATTR_STA_INFO] ||
1702 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1703 tb[NL80211_ATTR_STA_INFO], policy))
1704 return NL_SKIP;
1705 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1706 return NL_SKIP;
1707
7ee35bf3
PS		 1708 sig_change->current_signal =
1709 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1710
1711 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1712 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1713 sinfo[NL80211_STA_INFO_TX_BITRATE],
1714 rate_policy)) {
1715 sig_change->current_txrate = 0;
1716 } else {
1717 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1718 sig_change->current_txrate =
1719 nla_get_u16(rinfo[
1720 NL80211_RATE_INFO_BITRATE]) * 100;
1721 }
1722 }
1723 }
1724
60a972a6
JM		 1725 return NL_SKIP;
1726}
1727
1728
1729static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1730 struct wpa_signal_info *sig)
60a972a6
JM		 1731{
1732 struct nl_msg *msg;
1733
7ee35bf3
PS		 1734 sig->current_signal = -9999;
1735 sig->current_txrate = 0;
60a972a6
JM		 1736
1737 msg = nlmsg_alloc();
1738 if (!msg)
1739 return -ENOMEM;
1740
9fb04070 1741 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 1742
1743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1744 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1745
1746 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1747 nla_put_failure:
5883168a 1748 nlmsg_free(msg);
60a972a6
JM		 1749 return -ENOBUFS;
1750}
1751
1752
7ee35bf3
PS		 1753static int get_link_noise(struct nl_msg *msg, void *arg)
1754{
1755 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1756 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1757 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1758 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1759 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1760 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1761 };
1c5c7273 1762 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1763
1764 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1765 genlmsg_attrlen(gnlh, 0), NULL);
1766
1767 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1768 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1769 return NL_SKIP;
1770 }
1771
1772 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1773 tb[NL80211_ATTR_SURVEY_INFO],
1774 survey_policy)) {
1775 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1776 "attributes!");
1777 return NL_SKIP;
1778 }
1779
1780 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1781 return NL_SKIP;
1782
1783 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1784 sig_change->frequency)
1785 return NL_SKIP;
1786
1787 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1788 return NL_SKIP;
1789
1790 sig_change->current_noise =
1791 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1792
1793 return NL_SKIP;
1794}
1795
1796
1797static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1798 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1799{
1800 struct nl_msg *msg;
1801
1802 sig_change->current_noise = 9999;
1803 sig_change->frequency = drv->assoc_freq;
1804
1805 msg = nlmsg_alloc();
1806 if (!msg)
1807 return -ENOMEM;
1808
9fb04070 1809 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 1810
1811 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1812
1813 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1814 nla_put_failure:
5883168a 1815 nlmsg_free(msg);
7ee35bf3
PS		 1816 return -ENOBUFS;
1817}
1818
1819
577db0ae
GM		 1820static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
1821{
1822 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1823 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1824 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1825 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1826 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1827 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1828 };
1829 struct wpa_scan_results *scan_results = arg;
1830 struct wpa_scan_res *scan_res;
1831 size_t i;
1832
1833 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1834 genlmsg_attrlen(gnlh, 0), NULL);
1835
1836 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1837 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
1838 return NL_SKIP;
1839 }
1840
1841 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1842 tb[NL80211_ATTR_SURVEY_INFO],
1843 survey_policy)) {
1844 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
1845 "attributes");
1846 return NL_SKIP;
1847 }
1848
1849 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1850 return NL_SKIP;
1851
1852 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1853 return NL_SKIP;
1854
1855 for (i = 0; i < scan_results->num; ++i) {
1856 scan_res = scan_results->res[i];
1857 if (!scan_res)
1858 continue;
1859 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1860 scan_res->freq)
1861 continue;
1862 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
1863 continue;
1864 scan_res->noise = (s8)
1865 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1866 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
1867 }
1868
1869 return NL_SKIP;
1870}
1871
1872
1873static int nl80211_get_noise_for_scan_results(
1874 struct wpa_driver_nl80211_data *drv,
1875 struct wpa_scan_results *scan_res)
1876{
1877 struct nl_msg *msg;
1878
1879 msg = nlmsg_alloc();
1880 if (!msg)
1881 return -ENOMEM;
1882
1883 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1884
1885 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1886
1887 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
1888 scan_res);
1889 nla_put_failure:
9e088e74 1890 nlmsg_free(msg);
577db0ae
GM		 1891 return -ENOBUFS;
1892}
1893
1894
93910401
JM		 1895static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1896 struct nlattr *tb[])
1897{
1898 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1899 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1900 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1901 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1902 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1903 };
1904 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1905 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1906 union wpa_event_data ed;
1c5c7273 1907 struct wpa_signal_info sig;
7ee35bf3 1908 int res;
93910401
JM		 1909
1910 if (tb[NL80211_ATTR_CQM] == NULL ||
1911 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1912 cqm_policy)) {
1913 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1914 return;
1915 }
1916
0d7e5a3a
JB		 1917 os_memset(&ed, 0, sizeof(ed));
1918
1919 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1920 if (!tb[NL80211_ATTR_MAC])
1921 return;
1922 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1923 ETH_ALEN);
1924 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1925 return;
1926 }
1927
93910401
JM		 1928 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1929 return;
1930 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1931
93910401
JM		 1932 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1933 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1934 "event: RSSI high");
b625473c 1935 ed.signal_change.above_threshold = 1;
93910401
JM		 1936 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1937 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1938 "event: RSSI low");
b625473c
JM		 1939 ed.signal_change.above_threshold = 0;
1940 } else
1941 return;
1942
60a972a6
JM		 1943 res = nl80211_get_link_signal(drv, &sig);
1944 if (res == 0) {
7ee35bf3
PS		 1945 ed.signal_change.current_signal = sig.current_signal;
1946 ed.signal_change.current_txrate = sig.current_txrate;
1947 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1948 sig.current_signal, sig.current_txrate);
1949 }
1950
1951 res = nl80211_get_link_noise(drv, &sig);
1952 if (res == 0) {
1953 ed.signal_change.current_noise = sig.current_noise;
1954 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1955 sig.current_noise);
60a972a6
JM		 1956 }
1957
b625473c 1958 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1959}
1960
1961
18d2ba08
JM		 1962static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1963 struct nlattr **tb)
1964{
1965 u8 *addr;
1966 union wpa_event_data data;
1967
1968 if (tb[NL80211_ATTR_MAC] == NULL)
1969 return;
1970 addr = nla_data(tb[NL80211_ATTR_MAC]);
1971 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 1972
61cbe2ff 1973 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 1974 u8 *ies = NULL;
1975 size_t ies_len = 0;
1976 if (tb[NL80211_ATTR_IE]) {
1977 ies = nla_data(tb[NL80211_ATTR_IE]);
1978 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1979 }
1980 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1981 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1982 return;
1983 }
1984
18d2ba08
JM		 1985 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1986 return;
1987
1988 os_memset(&data, 0, sizeof(data));
1989 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1990 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1991}
1992
1993
ef985058
JM		 1994static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1995 struct nlattr **tb)
1996{
1997 u8 *addr;
1998 union wpa_event_data data;
1999
2000 if (tb[NL80211_ATTR_MAC] == NULL)
2001 return;
2002 addr = nla_data(tb[NL80211_ATTR_MAC]);
2003 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2004 MAC2STR(addr));
5f310a9e 2005
61cbe2ff 2006 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 2007 drv_event_disassoc(drv->ctx, addr);
2008 return;
2009 }
2010
ef985058
JM		 2011 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2012 return;
2013
2014 os_memset(&data, 0, sizeof(data));
2015 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2016 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2017}
2018
2019
b14a210c
JB		 2020static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2021 struct nlattr **tb)
2022{
2023 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2024 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2025 [NL80211_REKEY_DATA_KEK] = {
2026 .minlen = NL80211_KEK_LEN,
2027 .maxlen = NL80211_KEK_LEN,
2028 },
2029 [NL80211_REKEY_DATA_KCK] = {
2030 .minlen = NL80211_KCK_LEN,
2031 .maxlen = NL80211_KCK_LEN,
2032 },
2033 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2034 .minlen = NL80211_REPLAY_CTR_LEN,
2035 .maxlen = NL80211_REPLAY_CTR_LEN,
2036 },
2037 };
2038 union wpa_event_data data;
2039
2040 if (!tb[NL80211_ATTR_MAC])
2041 return;
2042 if (!tb[NL80211_ATTR_REKEY_DATA])
2043 return;
2044 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2045 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2046 return;
2047 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2048 return;
2049
2050 os_memset(&data, 0, sizeof(data));
2051 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2052 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2053 MAC2STR(data.driver_gtk_rekey.bssid));
2054 data.driver_gtk_rekey.replay_ctr =
2055 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2056 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2057 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2058 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2059}
2060
2061
c36d5242
JM		 2062static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2063 struct nlattr **tb)
2064{
2065 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2066 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2067 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2068 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2069 .minlen = ETH_ALEN,
2070 .maxlen = ETH_ALEN,
2071 },
2072 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2073 };
2074 union wpa_event_data data;
2075
7d81932d
JM		 2076 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2077
c36d5242
JM		 2078 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2079 return;
2080 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2081 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2082 return;
2083 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2084 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2085 return;
2086
2087 os_memset(&data, 0, sizeof(data));
2088 os_memcpy(data.pmkid_candidate.bssid,
2089 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2090 data.pmkid_candidate.index =
2091 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2092 data.pmkid_candidate.preauth =
2093 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2094 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2095}
2096
2097
39718852
JB		 2098static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2099 struct nlattr **tb)
2100{
2101 union wpa_event_data data;
2102
7d81932d
JM		 2103 wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2104
39718852
JB		 2105 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2106 return;
2107
2108 os_memset(&data, 0, sizeof(data));
2109 os_memcpy(data.client_poll.addr,
2110 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2111
2112 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2113}
2114
2115
3088e4e5
JB		 2116static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2117 int wds)
02bb32c3
JB		 2118{
2119 struct wpa_driver_nl80211_data *drv = bss->drv;
2120 union wpa_event_data event;
02bb32c3
JB		 2121
2122 if (!tb[NL80211_ATTR_MAC])
2123 return;
2124
02bb32c3 2125 os_memset(&event, 0, sizeof(event));
341eebee 2126 event.rx_from_unknown.bssid = bss->addr;
02bb32c3 2127 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
3088e4e5 2128 event.rx_from_unknown.wds = wds;
02bb32c3
JB		 2129
2130 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2131}
2132
2133
d6c9aab8
JB		 2134static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
2135 int cmd, struct nlattr **tb)
97865538 2136{
b1f625e0 2137 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
d6c9aab8
JB		 2138 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2139 cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 2140 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2141 drv->ap_scan_as_station);
2142 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 2143 }
2144
d6c9aab8 2145 switch (cmd) {
d942a79e
JM		 2146 case NL80211_CMD_TRIGGER_SCAN:
2147 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
2148 break;
d21c63b9
LC		 2149 case NL80211_CMD_START_SCHED_SCAN:
2150 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
2151 break;
2152 case NL80211_CMD_SCHED_SCAN_STOPPED:
2153 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
2154 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2155 break;
97865538
JM		 2156 case NL80211_CMD_NEW_SCAN_RESULTS:
2157 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
2158 drv->scan_complete_events = 1;
2159 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2160 drv->ctx);
8d923a4a 2161 send_scan_event(drv, 0, tb);
97865538 2162 break;
d21c63b9
LC		 2163 case NL80211_CMD_SCHED_SCAN_RESULTS:
2164 wpa_printf(MSG_DEBUG,
2165 "nl80211: New sched scan results available");
2166 send_scan_event(drv, 0, tb);
2167 break;
97865538
JM		 2168 case NL80211_CMD_SCAN_ABORTED:
2169 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
2170 /*
2171 * Need to indicate that scan results are available in order
2172 * not to make wpa_supplicant stop its scanning.
2173 */
2174 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2175 drv->ctx);
8d923a4a 2176 send_scan_event(drv, 1, tb);
97865538 2177 break;
c2a04078
JM		 2178 case NL80211_CMD_AUTHENTICATE:
2179 case NL80211_CMD_ASSOCIATE:
2180 case NL80211_CMD_DEAUTHENTICATE:
2181 case NL80211_CMD_DISASSOCIATE:
bd94971e 2182 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 2183 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2184 case NL80211_CMD_UNPROT_DISASSOCIATE:
d6c9aab8 2185 mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 2186 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2187 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2188 tb[NL80211_ATTR_COOKIE],
2189 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
c2a04078 2190 break;
da72a1c1
ZY		 2191 case NL80211_CMD_CONNECT:
2192 case NL80211_CMD_ROAM:
d6c9aab8 2193 mlme_event_connect(drv, cmd,
da72a1c1
ZY		 2194 tb[NL80211_ATTR_STATUS_CODE],
2195 tb[NL80211_ATTR_MAC],
2196 tb[NL80211_ATTR_REQ_IE],
2197 tb[NL80211_ATTR_RESP_IE]);
2198 break;
1b487b8b
TP		 2199 case NL80211_CMD_CH_SWITCH_NOTIFY:
2200 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ],
2201 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2202 break;
da72a1c1 2203 case NL80211_CMD_DISCONNECT:
20f5a4c2 2204 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
3d9975d5
JM		 2205 tb[NL80211_ATTR_MAC],
2206 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
da72a1c1 2207 break;
35583f3f
JM		 2208 case NL80211_CMD_MICHAEL_MIC_FAILURE:
2209 mlme_event_michael_mic_failure(drv, tb);
2210 break;
5cc4d64b
JM		 2211 case NL80211_CMD_JOIN_IBSS:
2212 mlme_event_join_ibss(drv, tb);
2213 break;
55777702
JM		 2214 case NL80211_CMD_REMAIN_ON_CHANNEL:
2215 mlme_event_remain_on_channel(drv, 0, tb);
2216 break;
2217 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2218 mlme_event_remain_on_channel(drv, 1, tb);
2219 break;
93910401
JM		 2220 case NL80211_CMD_NOTIFY_CQM:
2221 nl80211_cqm_event(drv, tb);
2222 break;
33c5deb8
JM		 2223 case NL80211_CMD_REG_CHANGE:
2224 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2225 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2226 NULL);
2227 break;
2228 case NL80211_CMD_REG_BEACON_HINT:
2229 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2230 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2231 NULL);
2232 break;
18d2ba08
JM		 2233 case NL80211_CMD_NEW_STATION:
2234 nl80211_new_station_event(drv, tb);
2235 break;
ef985058
JM		 2236 case NL80211_CMD_DEL_STATION:
2237 nl80211_del_station_event(drv, tb);
2238 break;
b14a210c
JB		 2239 case NL80211_CMD_SET_REKEY_OFFLOAD:
2240 nl80211_rekey_offload_event(drv, tb);
2241 break;
c36d5242
JM		 2242 case NL80211_CMD_PMKSA_CANDIDATE:
2243 nl80211_pmksa_candidate_event(drv, tb);
2244 break;
39718852
JB		 2245 case NL80211_CMD_PROBE_CLIENT:
2246 nl80211_client_probe_event(drv, tb);
2247 break;
97865538 2248 default:
c2a04078 2249 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
d6c9aab8 2250 "(cmd=%d)", cmd);
97865538
JM		 2251 break;
2252 }
d6c9aab8
JB		 2253}
2254
2255
2256static int process_drv_event(struct nl_msg *msg, void *arg)
2257{
2258 struct wpa_driver_nl80211_data *drv = arg;
2259 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2260 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2261
2262 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2263 genlmsg_attrlen(gnlh, 0), NULL);
2264
2265 if (tb[NL80211_ATTR_IFINDEX]) {
2266 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2267 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
2268 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
2269 " for foreign interface (ifindex %d)",
2270 gnlh->cmd, ifindex);
2271 return NL_SKIP;
2272 }
2273 }
2274
2275 do_process_drv_event(drv, gnlh->cmd, tb);
2276 return NL_SKIP;
2277}
2278
2279
2280static int process_global_event(struct nl_msg *msg, void *arg)
2281{
2282 struct nl80211_global *global = arg;
2283 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2284 struct nlattr *tb[NL80211_ATTR_MAX + 1];
24b5bd8b 2285 struct wpa_driver_nl80211_data *drv, *tmp;
d6c9aab8
JB		 2286 int ifidx = -1;
2287
2288 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2289 genlmsg_attrlen(gnlh, 0), NULL);
2290
2291 if (tb[NL80211_ATTR_IFINDEX])
2292 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2293
24b5bd8b
JB		 2294 dl_list_for_each_safe(drv, tmp, &global->interfaces,
2295 struct wpa_driver_nl80211_data, list) {
d6c9aab8
JB		 2296 if (ifidx == -1 || ifidx == drv->ifindex ||
2297 have_ifidx(drv, ifidx))
2298 do_process_drv_event(drv, gnlh->cmd, tb);
2299 }
97865538
JM		 2300
2301 return NL_SKIP;
2302}
2303
2304
cc7a48d1
JB		 2305static int process_bss_event(struct nl_msg *msg, void *arg)
2306{
a11241fa 2307 struct i802_bss *bss = arg;
cc7a48d1
JB		 2308 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2309 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2310
2311 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2312 genlmsg_attrlen(gnlh, 0), NULL);
2313
2314 switch (gnlh->cmd) {
a11241fa
JB		 2315 case NL80211_CMD_FRAME:
2316 case NL80211_CMD_FRAME_TX_STATUS:
2317 mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
2318 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2319 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2320 tb[NL80211_ATTR_COOKIE],
2321 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
a11241fa 2322 break;
02bb32c3 2323 case NL80211_CMD_UNEXPECTED_FRAME:
3088e4e5
JB		 2324 nl80211_spurious_frame(bss, tb, 0);
2325 break;
2326 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2327 nl80211_spurious_frame(bss, tb, 1);
02bb32c3 2328 break;
cc7a48d1
JB		 2329 default:
2330 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2331 "(cmd=%d)", gnlh->cmd);
2332 break;
2333 }
2334
2335 return NL_SKIP;
2336}
2337
2338
97865538 2339static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 2340 void *handle)
97865538 2341{
a4ae123c 2342 struct nl_cb *cb = eloop_ctx;
97865538
JM		 2343
2344 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
2345
a4ae123c 2346 nl_recvmsgs(handle, cb);
97865538
JM		 2347}
2348
2349
6d158490
LR		 2350/**
2351 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2352 * @priv: driver_nl80211 private data
2353 * @alpha2_arg: country to which to switch to
2354 * Returns: 0 on success, -1 on failure
2355 *
2356 * This asks nl80211 to set the regulatory domain for given
2357 * country ISO / IEC alpha2.
2358 */
2359static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2360{
a2e40bb6
FF		 2361 struct i802_bss *bss = priv;
2362 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 2363 char alpha2[3];
2364 struct nl_msg *msg;
2365
2366 msg = nlmsg_alloc();
2367 if (!msg)
e785c2ba 2368 return -ENOMEM;
6d158490
LR		 2369
2370 alpha2[0] = alpha2_arg[0];
2371 alpha2[1] = alpha2_arg[1];
2372 alpha2[2] = '\0';
2373
9fb04070 2374 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 2375
2376 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2377 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2378 return -EINVAL;
2379 return 0;
2380nla_put_failure:
5883168a 2381 nlmsg_free(msg);
6d158490
LR		 2382 return -EINVAL;
2383}
2384
2385
80bc75f1 2386struct wiphy_info_data {
e8b5e24e
JB		 2387 struct wpa_driver_capa *capa;
2388
2389 unsigned int error:1;
61cbe2ff 2390 unsigned int device_ap_sme:1;
39718852 2391 unsigned int poll_command_supported:1;
32ab4855 2392 unsigned int data_tx_status:1;
536062f2 2393 unsigned int monitor_supported:1;
80bc75f1
JM		 2394};
2395
2396
562c9d97
AN		 2397static unsigned int probe_resp_offload_support(int supp_protocols)
2398{
2399 unsigned int prot = 0;
2400
2401 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2402 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2403 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2404 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2405 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2406 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2407 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2408 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2409
2410 return prot;
2411}
2412
2413
80bc75f1
JM		 2414static int wiphy_info_handler(struct nl_msg *msg, void *arg)
2415{
2416 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2417 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2418 struct wiphy_info_data *info = arg;
9f51b113 2419 int p2p_go_supported = 0, p2p_client_supported = 0;
e3e234fa 2420 int p2p_concurrent = 0, p2p_multichan_concurrent = 0;
e8b5e24e
JB		 2421 int auth_supported = 0, connect_supported = 0;
2422 struct wpa_driver_capa *capa = info->capa;
7626850d
JB		 2423 static struct nla_policy
2424 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2425 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2426 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2427 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
2428 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
2429 },
2430 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2431 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2432 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2433 };
80bc75f1
JM		 2434
2435 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2436 genlmsg_attrlen(gnlh, 0), NULL);
2437
2438 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 2439 capa->max_scan_ssids =
80bc75f1
JM		 2440 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
2441
d21c63b9 2442 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 2443 capa->max_sched_scan_ssids =
d21c63b9
LC		 2444 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
2445
bd525934 2446 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 2447 capa->max_match_sets =
bd525934
LC		 2448 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
2449
1581b38b
JM		 2450 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
2451 struct nlattr *nl_mode;
2452 int i;
2453 nla_for_each_nested(nl_mode,
2454 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 2455 switch (nla_type(nl_mode)) {
9f51b113 2456 case NL80211_IFTYPE_AP:
e8b5e24e 2457 capa->flags |= WPA_DRIVER_FLAGS_AP;
1581b38b 2458 break;
9f51b113
JB		 2459 case NL80211_IFTYPE_P2P_GO:
2460 p2p_go_supported = 1;
2461 break;
2462 case NL80211_IFTYPE_P2P_CLIENT:
2463 p2p_client_supported = 1;
2464 break;
536062f2
JM		 2465 case NL80211_IFTYPE_MONITOR:
2466 info->monitor_supported = 1;
2467 break;
1581b38b
JM		 2468 }
2469 }
2470 }
2471
7626850d
JB		 2472 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
2473 struct nlattr *nl_combi;
2474 int rem_combi;
2475
2476 nla_for_each_nested(nl_combi,
2477 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
2478 rem_combi) {
2479 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
2480 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
2481 struct nlattr *nl_limit, *nl_mode;
2482 int err, rem_limit, rem_mode;
2483 int combination_has_p2p = 0, combination_has_mgd = 0;
2484
2485 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
2486 nl_combi,
2487 iface_combination_policy);
2488 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
2489 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
2490 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
2491 goto broken_combination;
2492
2493 nla_for_each_nested(nl_limit,
2494 tb_comb[NL80211_IFACE_COMB_LIMITS],
2495 rem_limit) {
2496 err = nla_parse_nested(tb_limit,
2497 MAX_NL80211_IFACE_LIMIT,
2498 nl_limit,
2499 iface_limit_policy);
2500 if (err ||
2501 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2502 goto broken_combination;
2503
2504 nla_for_each_nested(
2505 nl_mode,
2506 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2507 rem_mode) {
2508 int ift = nla_type(nl_mode);
2509 if (ift == NL80211_IFTYPE_P2P_GO ||
2510 ift == NL80211_IFTYPE_P2P_CLIENT)
2511 combination_has_p2p = 1;
2512 if (ift == NL80211_IFTYPE_STATION)
2513 combination_has_mgd = 1;
2514 }
2515 if (combination_has_p2p && combination_has_mgd)
2516 break;
2517 }
2518
2519 if (combination_has_p2p && combination_has_mgd) {
e8b5e24e 2520 p2p_concurrent = 1;
e3e234fa
WJL		 2521 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1)
2522 p2p_multichan_concurrent = 1;
7626850d
JB		 2523 break;
2524 }
2525
2526broken_combination:
2527 ;
2528 }
2529 }
2530
93d11400
ZY		 2531 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
2532 struct nlattr *nl_cmd;
2533 int i;
2534
2535 nla_for_each_nested(nl_cmd,
2536 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
e8b5e24e
JB		 2537 switch (nla_get_u32(nl_cmd)) {
2538 case NL80211_CMD_AUTHENTICATE:
2539 auth_supported = 1;
2540 break;
2541 case NL80211_CMD_CONNECT:
2542 connect_supported = 1;
2543 break;
2544 case NL80211_CMD_START_SCHED_SCAN:
2545 capa->sched_scan_supported = 1;
2546 break;
39718852
JB		 2547 case NL80211_CMD_PROBE_CLIENT:
2548 info->poll_command_supported = 1;
2549 break;
e8b5e24e 2550 }
93d11400
ZY		 2551 }
2552 }
2553
e8b5e24e
JB		 2554 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
2555 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
2556 "off-channel TX");
2557 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
2558 }
2559
2560 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
2561 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
2562 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
2563 }
5dfca53f 2564
e8b5e24e
JB		 2565 /* default to 5000 since early versions of mac80211 don't set it */
2566 capa->max_remain_on_chan = 5000;
004ba773 2567
70619a5d
EP		 2568 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
2569 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
2570
89e07afb 2571 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
e8b5e24e 2572 capa->max_remain_on_chan =
89e07afb
JB		 2573 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
2574
e8b5e24e
JB		 2575 if (auth_supported)
2576 capa->flags |= WPA_DRIVER_FLAGS_SME;
2577 else if (!connect_supported) {
2578 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
2579 "authentication/association or connect commands");
2580 info->error = 1;
2581 }
2582
2583 if (p2p_go_supported && p2p_client_supported)
2584 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
2585 if (p2p_concurrent) {
2586 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
2587 "interface (driver advertised support)");
2588 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
2589 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
e3e234fa
WJL		 2590
2591 if (p2p_multichan_concurrent) {
2592 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
2593 "concurrent (driver advertised support)");
2594 capa->flags |=
2595 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT;
2596 }
e8b5e24e
JB		 2597 }
2598
03ea1786
AN		 2599 if (tb[NL80211_ATTR_TDLS_SUPPORT]) {
2600 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
2601 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
2602
2603 if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) {
2604 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
2605 capa->flags |=
2606 WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
2607 }
2608 }
2609
61cbe2ff
JB		 2610 if (tb[NL80211_ATTR_DEVICE_AP_SME])
2611 info->device_ap_sme = 1;
2612
32ab4855
JB		 2613 if (tb[NL80211_ATTR_FEATURE_FLAGS]) {
2614 u32 flags = nla_get_u32(tb[NL80211_ATTR_FEATURE_FLAGS]);
2615
2616 if (flags & NL80211_FEATURE_SK_TX_STATUS)
2617 info->data_tx_status = 1;
a0133ee1
VT		 2618
2619 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
2620 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
569fed90
JM		 2621
2622 if (flags & NL80211_FEATURE_SAE)
2623 capa->flags |= WPA_DRIVER_FLAGS_SAE;
32ab4855
JB		 2624 }
2625
562c9d97
AN		 2626 if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) {
2627 int protocols =
2628 nla_get_u32(tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
2629 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response "
2630 "offload in AP mode");
2631 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
2632 capa->probe_resp_offloads =
2633 probe_resp_offload_support(protocols);
2634 }
2635
80bc75f1
JM		 2636 return NL_SKIP;
2637}
2638
2639
2640static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
2641 struct wiphy_info_data *info)
2642{
2643 struct nl_msg *msg;
2644
2645 os_memset(info, 0, sizeof(*info));
e8b5e24e 2646 info->capa = &drv->capa;
89e07afb 2647
80bc75f1
JM		 2648 msg = nlmsg_alloc();
2649 if (!msg)
2650 return -1;
2651
9fb04070 2652 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 2653
a2e40bb6 2654 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 2655
2656 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
2657 return 0;
2658 msg = NULL;
2659nla_put_failure:
2660 nlmsg_free(msg);
2661 return -1;
2662}
2663
2664
93d11400 2665static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 2666{
2667 struct wiphy_info_data info;
2668 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 2669 return -1;
e8b5e24e
JB		 2670
2671 if (info.error)
2672 return -1;
2673
80bc75f1 2674 drv->has_capability = 1;
1b2a72e8
JM		 2675 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2676 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2677 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2678 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2679 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2680 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2681 WPA_DRIVER_CAPA_ENC_WEP104 |
2682 WPA_DRIVER_CAPA_ENC_TKIP |
2683 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 2684 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2685 WPA_DRIVER_AUTH_SHARED |
2686 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 2687
871f4dd0 2688 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 2689 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 2690 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
e1bd4e19 2691
e5091674 2692 if (!info.device_ap_sme) {
e1bd4e19 2693 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 2694
e5091674
JM		 2695 /*
2696 * No AP SME is currently assumed to also indicate no AP MLME
2697 * in the driver/firmware.
2698 */
2699 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
2700 }
2701
61cbe2ff 2702 drv->device_ap_sme = info.device_ap_sme;
39718852 2703 drv->poll_command_supported = info.poll_command_supported;
32ab4855 2704 drv->data_tx_status = info.data_tx_status;
61cbe2ff 2705
a11241fa 2706 /*
73a3c6ff
FF		 2707 * If poll command and tx status are supported, mac80211 is new enough
2708 * to have everything we need to not need monitor interfaces.
a11241fa 2709 */
73a3c6ff 2710 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
a11241fa 2711
536062f2
JM		 2712 if (drv->device_ap_sme && drv->use_monitor) {
2713 /*
2714 * Non-mac80211 drivers may not support monitor interface.
2715 * Make sure we do not get stuck with incorrect capability here
2716 * by explicitly testing this.
2717 */
2718 if (!info.monitor_supported) {
2719 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
2720 "with device_ap_sme since no monitor mode "
2721 "support detected");
2722 drv->use_monitor = 0;
2723 }
2724 }
2725
a11241fa
JB		 2726 /*
2727 * If we aren't going to use monitor interfaces, but the
2728 * driver doesn't support data TX status, we won't get TX
2729 * status for EAPOL frames.
2730 */
2731 if (!drv->use_monitor && !info.data_tx_status)
2732 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2733
93d11400 2734 return 0;
80bc75f1
JM		 2735}
2736
2737
b088cf82
JM		 2738#ifdef ANDROID
2739static int android_genl_ctrl_resolve(struct nl_handle *handle,
2740 const char *name)
2741{
2742 /*
2743 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
2744 * need to work around that.
2745 */
2746 struct nl_cache *cache = NULL;
2747 struct genl_family *nl80211 = NULL;
2748 int id = -1;
2749
2750 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
2751 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
2752 "netlink cache");
2753 goto fail;
2754 }
2755
2756 nl80211 = genl_ctrl_search_by_name(cache, name);
2757 if (nl80211 == NULL)
2758 goto fail;
2759
2760 id = genl_family_get_id(nl80211);
2761
2762fail:
2763 if (nl80211)
2764 genl_family_put(nl80211);
2765 if (cache)
2766 nl_cache_free(cache);
2767
2768 return id;
2769}
2770#define genl_ctrl_resolve android_genl_ctrl_resolve
2771#endif /* ANDROID */
2772
2773
2a7b66f5
BG		 2774static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
2775{
d6c9aab8
JB		 2776 int ret;
2777
2a7b66f5
BG		 2778 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2779 if (global->nl_cb == NULL) {
2780 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
2781 "callbacks");
2782 return -1;
2783 }
2784
481234cf
JM		 2785 global->nl = nl_create_handle(global->nl_cb, "nl");
2786 if (global->nl == NULL)
d6c9aab8 2787 goto err;
276e2d67 2788
481234cf 2789 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
335d42b1 2790 if (global->nl80211_id < 0) {
276e2d67
BG		 2791 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
2792 "found");
d6c9aab8 2793 goto err;
276e2d67
BG		 2794 }
2795
481234cf
JM		 2796 global->nl_event = nl_create_handle(global->nl_cb, "event");
2797 if (global->nl_event == NULL)
d6c9aab8 2798 goto err;
9fff9fdc 2799
d6c9aab8 2800 ret = nl_get_multicast_id(global, "nl80211", "scan");
97865538 2801 if (ret >= 0)
481234cf 2802 ret = nl_socket_add_membership(global->nl_event, ret);
97865538
JM		 2803 if (ret < 0) {
2804 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2805 "membership for scan events: %d (%s)",
2806 ret, strerror(-ret));
d6c9aab8 2807 goto err;
97865538 2808 }
c2a04078 2809
d6c9aab8 2810 ret = nl_get_multicast_id(global, "nl80211", "mlme");
c2a04078 2811 if (ret >= 0)
481234cf 2812 ret = nl_socket_add_membership(global->nl_event, ret);
c2a04078
JM		 2813 if (ret < 0) {
2814 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2815 "membership for mlme events: %d (%s)",
2816 ret, strerror(-ret));
d6c9aab8 2817 goto err;
c2a04078 2818 }
c2a04078 2819
d6c9aab8 2820 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
33c5deb8 2821 if (ret >= 0)
481234cf 2822 ret = nl_socket_add_membership(global->nl_event, ret);
33c5deb8
JM		 2823 if (ret < 0) {
2824 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2825 "membership for regulatory events: %d (%s)",
2826 ret, strerror(-ret));
2827 /* Continue without regulatory events */
2828 }
2829
d6c9aab8
JB		 2830 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2831 no_seq_check, NULL);
2832 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2833 process_global_event, global);
2834
481234cf 2835 eloop_register_read_sock(nl_socket_get_fd(global->nl_event),
d6c9aab8 2836 wpa_driver_nl80211_event_receive,
481234cf 2837 global->nl_cb, global->nl_event);
d6c9aab8
JB		 2838
2839 return 0;
2840
2841err:
2842 nl_destroy_handles(&global->nl_event);
2843 nl_destroy_handles(&global->nl);
2844 nl_cb_put(global->nl_cb);
671a5039 2845 global->nl_cb = NULL;
d6c9aab8
JB		 2846 return -1;
2847}
2848
2849
2850static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
2851{
1afc986d
JB		 2852 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2853 if (!drv->nl_cb) {
2854 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
d6c9aab8 2855 return -1;
1afc986d
JB		 2856 }
2857
2858 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2859 no_seq_check, NULL);
f06aedd9
JB		 2860 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2861 process_drv_event, drv);
1afc986d 2862
9fff9fdc 2863 return 0;
9fff9fdc
JM		 2864}
2865
2866
8401a6b0
JM		 2867static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2868{
8401a6b0 2869 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 2870 /*
2871 * This may be for any interface; use ifdown event to disable
2872 * interface.
2873 */
8401a6b0
JM		 2874}
2875
2876
2877static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2878{
2879 struct wpa_driver_nl80211_data *drv = ctx;
2880 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
c81eff1a
BG		 2881 if (linux_set_iface_flags(drv->global->ioctl_sock,
2882 drv->first_bss.ifname, 1)) {
8401a6b0
JM		 2883 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2884 "after rfkill unblock");
2885 return;
2886 }
a63063b4 2887 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 2888}
2889
2890
6859f1cb
BG		 2891static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2892{
2893 /* Find phy (radio) to which this interface belongs */
2894 char buf[90], *pos;
2895 int f, rv;
2896
2897 drv->phyname[0] = '\0';
2898 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2899 drv->first_bss.ifname);
2900 f = open(buf, O_RDONLY);
2901 if (f < 0) {
2902 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2903 buf, strerror(errno));
2904 return;
2905 }
2906
2907 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2908 close(f);
2909 if (rv < 0) {
2910 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2911 buf, strerror(errno));
2912 return;
2913 }
2914
2915 drv->phyname[rv] = '\0';
2916 pos = os_strchr(drv->phyname, '\n');
2917 if (pos)
2918 *pos = '\0';
2919 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2920 drv->first_bss.ifname, drv->phyname);
2921}
2922
2923
32ab4855
JB		 2924static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
2925 void *eloop_ctx,
2926 void *handle)
2927{
2928 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2929 u8 data[2048];
2930 struct msghdr msg;
2931 struct iovec entry;
cad0f50e 2932 u8 control[512];
32ab4855
JB		 2933 struct cmsghdr *cmsg;
2934 int res, found_ee = 0, found_wifi = 0, acked = 0;
2935 union wpa_event_data event;
2936
2937 memset(&msg, 0, sizeof(msg));
2938 msg.msg_iov = &entry;
2939 msg.msg_iovlen = 1;
2940 entry.iov_base = data;
2941 entry.iov_len = sizeof(data);
2942 msg.msg_control = &control;
2943 msg.msg_controllen = sizeof(control);
2944
2945 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
2946 /* if error or not fitting 802.3 header, return */
2947 if (res < 14)
2948 return;
2949
2950 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
2951 {
2952 if (cmsg->cmsg_level == SOL_SOCKET &&
2953 cmsg->cmsg_type == SCM_WIFI_STATUS) {
2954 int *ack;
2955
2956 found_wifi = 1;
2957 ack = (void *)CMSG_DATA(cmsg);
2958 acked = *ack;
2959 }
2960
2961 if (cmsg->cmsg_level == SOL_PACKET &&
2962 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
2963 struct sock_extended_err *err =
2964 (struct sock_extended_err *)CMSG_DATA(cmsg);
2965
2966 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
2967 found_ee = 1;
2968 }
2969 }
2970
2971 if (!found_ee || !found_wifi)
2972 return;
2973
2974 memset(&event, 0, sizeof(event));
2975 event.eapol_tx_status.dst = data;
2976 event.eapol_tx_status.data = data + 14;
2977 event.eapol_tx_status.data_len = res - 14;
2978 event.eapol_tx_status.ack = acked;
2979 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
2980}
2981
2982
cc7a48d1
JB		 2983static int nl80211_init_bss(struct i802_bss *bss)
2984{
2985 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2986 if (!bss->nl_cb)
2987 return -1;
2988
2989 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2990 no_seq_check, NULL);
2991 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2992 process_bss_event, bss);
2993
2994 return 0;
2995}
2996
2997
2998static void nl80211_destroy_bss(struct i802_bss *bss)
2999{
3000 nl_cb_put(bss->nl_cb);
3001 bss->nl_cb = NULL;
3002}
3003
3004
9fff9fdc
JM		 3005/**
3006 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
3007 * @ctx: context to be used when calling wpa_supplicant functions,
3008 * e.g., wpa_supplicant_event()
3009 * @ifname: interface name, e.g., wlan0
f2ed8023 3010 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 3011 * Returns: Pointer to private data, %NULL on failure
3012 */
f2ed8023
JM		 3013static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
3014 void *global_priv)
9fff9fdc 3015{
9fff9fdc 3016 struct wpa_driver_nl80211_data *drv;
8401a6b0 3017 struct rfkill_config *rcfg;
a2e40bb6 3018 struct i802_bss *bss;
9fff9fdc 3019
a5c696ad
JM		 3020 if (global_priv == NULL)
3021 return NULL;
9fff9fdc
JM		 3022 drv = os_zalloc(sizeof(*drv));
3023 if (drv == NULL)
3024 return NULL;
f2ed8023 3025 drv->global = global_priv;
9fff9fdc 3026 drv->ctx = ctx;
a2e40bb6
FF		 3027 bss = &drv->first_bss;
3028 bss->drv = drv;
3029 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 3030 drv->monitor_ifidx = -1;
3031 drv->monitor_sock = -1;
d12dab4c 3032 drv->eapol_tx_sock = -1;
b1f625e0 3033 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 3034
ba2d0d7d 3035 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 3036 os_free(drv);
3037 return NULL;
3038 }
9fff9fdc 3039
cc7a48d1
JB		 3040 if (nl80211_init_bss(bss))
3041 goto failed;
3042
6859f1cb
BG		 3043 nl80211_get_phy_name(drv);
3044
8401a6b0
JM		 3045 rcfg = os_zalloc(sizeof(*rcfg));
3046 if (rcfg == NULL)
3047 goto failed;
3048 rcfg->ctx = drv;
3049 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
3050 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
3051 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
3052 drv->rfkill = rfkill_init(rcfg);
52169389 3053 if (drv->rfkill == NULL) {
8401a6b0 3054 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 3055 os_free(rcfg);
3056 }
8401a6b0 3057
08063178 3058 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 3059 goto failed;
7524cfb1 3060
d12dab4c 3061 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
32ab4855
JB		 3062 if (drv->eapol_tx_sock < 0)
3063 goto failed;
3064
3065 if (drv->data_tx_status) {
3066 int enabled = 1;
3067
3068 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
3069 &enabled, sizeof(enabled)) < 0) {
3070 wpa_printf(MSG_DEBUG,
3071 "nl80211: wifi status sockopt failed\n");
3072 drv->data_tx_status = 0;
a11241fa
JB		 3073 if (!drv->use_monitor)
3074 drv->capa.flags &=
3075 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
32ab4855
JB		 3076 } else {
3077 eloop_register_read_sock(drv->eapol_tx_sock,
3078 wpa_driver_nl80211_handle_eapol_tx_status,
3079 drv, NULL);
3080 }
3081 }
f10bfc9a 3082
dac12351 3083 if (drv->global) {
c4bb8817 3084 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 3085 drv->in_interface_list = 1;
3086 }
c4bb8817 3087
a2e40bb6 3088 return bss;
7524cfb1 3089
bbaf0837 3090failed:
dac12351 3091 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 3092 return NULL;
3093}
3094
3095
a11241fa 3096static int nl80211_register_frame(struct i802_bss *bss,
5582a5d1 3097 struct nl_handle *nl_handle,
bd94971e 3098 u16 type, const u8 *match, size_t match_len)
58f6fbe0 3099{
a11241fa 3100 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0
JM		 3101 struct nl_msg *msg;
3102 int ret = -1;
3103
3104 msg = nlmsg_alloc();
3105 if (!msg)
3106 return -1;
3107
36488c05
JM		 3108 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3109 type, nl_handle);
3110 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3111 match, match_len);
3112
9fb04070 3113 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0 3114
a11241fa 3115 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
bd94971e 3116 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 3117 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
3118
d6c9aab8 3119 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 3120 msg = NULL;
3121 if (ret) {
5582a5d1
JB		 3122 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
3123 "failed (type=%u): ret=%d (%s)",
3124 type, ret, strerror(-ret));
3125 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 3126 match, match_len);
3127 goto nla_put_failure;
3128 }
3129 ret = 0;
3130nla_put_failure:
3131 nlmsg_free(msg);
3132 return ret;
3133}
3134
3135
a11241fa
JB		 3136static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
3137{
3138 struct wpa_driver_nl80211_data *drv = bss->drv;
3139
481234cf 3140 if (bss->nl_mgmt) {
a11241fa 3141 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
36488c05 3142 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
a11241fa
JB		 3143 return -1;
3144 }
3145
481234cf
JM		 3146 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
3147 if (bss->nl_mgmt == NULL)
a11241fa
JB		 3148 return -1;
3149
481234cf 3150 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt),
a11241fa 3151 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 3152 bss->nl_mgmt);
a11241fa
JB		 3153
3154 return 0;
3155}
3156
3157
3158static int nl80211_register_action_frame(struct i802_bss *bss,
bd94971e
JB		 3159 const u8 *match, size_t match_len)
3160{
3161 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
481234cf 3162 return nl80211_register_frame(bss, bss->nl_mgmt,
5582a5d1 3163 type, match, match_len);
bd94971e
JB		 3164}
3165
3166
a11241fa 3167static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
58f6fbe0 3168{
a11241fa
JB		 3169 struct wpa_driver_nl80211_data *drv = bss->drv;
3170
3171 if (nl80211_alloc_mgmt_handle(bss))
3172 return -1;
36488c05
JM		 3173 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
3174 "handle %p", bss->nl_mgmt);
a11241fa 3175
4fe9fa0d 3176#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2 3177 /* GAS Initial Request */
a11241fa 3178 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
046b26a2
JM		 3179 return -1;
3180 /* GAS Initial Response */
a11241fa 3181 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
046b26a2 3182 return -1;
18708aad 3183 /* GAS Comeback Request */
a11241fa 3184 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
18708aad
JM		 3185 return -1;
3186 /* GAS Comeback Response */
a11241fa 3187 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
18708aad 3188 return -1;
4fe9fa0d
JM		 3189#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
3190#ifdef CONFIG_P2P
046b26a2 3191 /* P2P Public Action */
a11241fa 3192 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3193 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
3194 6) < 0)
3195 return -1;
3196 /* P2P Action */
a11241fa 3197 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3198 (u8 *) "\x7f\x50\x6f\x9a\x09",
3199 5) < 0)
3200 return -1;
3201#endif /* CONFIG_P2P */
7d878ca7
JM		 3202#ifdef CONFIG_IEEE80211W
3203 /* SA Query Response */
a11241fa 3204 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
7d878ca7
JM		 3205 return -1;
3206#endif /* CONFIG_IEEE80211W */
35287637
AN		 3207#ifdef CONFIG_TDLS
3208 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
3209 /* TDLS Discovery Response */
aa543c0c 3210 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
35287637
AN		 3211 0)
3212 return -1;
3213 }
3214#endif /* CONFIG_TDLS */
046b26a2 3215
7b90c16a 3216 /* FT Action frames */
a11241fa 3217 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
7b90c16a
JM		 3218 return -1;
3219 else
3220 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3221 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3222
71269b37 3223 /* WNM - BSS Transition Management Request */
a11241fa
JB		 3224 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3225 return -1;
3226
3227 return 0;
3228}
3229
3230
02bb32c3
JB		 3231static int nl80211_register_spurious_class3(struct i802_bss *bss)
3232{
3233 struct wpa_driver_nl80211_data *drv = bss->drv;
3234 struct nl_msg *msg;
3235 int ret = -1;
3236
3237 msg = nlmsg_alloc();
3238 if (!msg)
3239 return -1;
3240
3241 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3242
3243 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3244
481234cf 3245 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
02bb32c3
JB		 3246 msg = NULL;
3247 if (ret) {
3248 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3249 "failed: ret=%d (%s)",
3250 ret, strerror(-ret));
3251 goto nla_put_failure;
3252 }
3253 ret = 0;
3254nla_put_failure:
3255 nlmsg_free(msg);
3256 return ret;
3257}
3258
3259
a11241fa
JB		 3260static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3261{
3262 static const int stypes[] = {
3263 WLAN_FC_STYPE_AUTH,
3264 WLAN_FC_STYPE_ASSOC_REQ,
3265 WLAN_FC_STYPE_REASSOC_REQ,
3266 WLAN_FC_STYPE_DISASSOC,
3267 WLAN_FC_STYPE_DEAUTH,
3268 WLAN_FC_STYPE_ACTION,
3269 WLAN_FC_STYPE_PROBE_REQ,
3270/* Beacon doesn't work as mac80211 doesn't currently allow
3271 * it, but it wouldn't really be the right thing anyway as
3272 * it isn't per interface ... maybe just dump the scan
3273 * results periodically for OLBC?
3274 */
3275// WLAN_FC_STYPE_BEACON,
3276 };
3277 unsigned int i;
3278
3279 if (nl80211_alloc_mgmt_handle(bss))
71269b37 3280 return -1;
36488c05
JM		 3281 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3282 "handle %p", bss->nl_mgmt);
71269b37 3283
a11241fa 3284 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) {
481234cf 3285 if (nl80211_register_frame(bss, bss->nl_mgmt,
a11241fa
JB		 3286 (WLAN_FC_TYPE_MGMT << 2) |
3287 (stypes[i] << 4),
3288 NULL, 0) < 0) {
3289 goto out_err;
3290 }
3291 }
3292
02bb32c3
JB		 3293 if (nl80211_register_spurious_class3(bss))
3294 goto out_err;
3295
e32ad281
JB		 3296 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3297 goto out_err;
3298
58f6fbe0 3299 return 0;
a11241fa
JB		 3300
3301out_err:
481234cf 3302 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa
JB		 3303 nl_destroy_handles(&bss->nl_mgmt);
3304 return -1;
3305}
3306
3307
a6cc0602
JM		 3308static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
3309{
3310 if (nl80211_alloc_mgmt_handle(bss))
3311 return -1;
3312 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3313 "handle %p (device SME)", bss->nl_mgmt);
3314
3315 if (nl80211_register_frame(bss, bss->nl_mgmt,
3316 (WLAN_FC_TYPE_MGMT << 2) |
3317 (WLAN_FC_STYPE_ACTION << 4),
3318 NULL, 0) < 0)
3319 goto out_err;
3320
3321 return 0;
3322
3323out_err:
3324 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3325 nl_destroy_handles(&bss->nl_mgmt);
3326 return -1;
3327}
3328
3329
36488c05 3330static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
a11241fa 3331{
481234cf 3332 if (bss->nl_mgmt == NULL)
a11241fa 3333 return;
36488c05
JM		 3334 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
3335 "(%s)", bss->nl_mgmt, reason);
481234cf 3336 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa 3337 nl_destroy_handles(&bss->nl_mgmt);
e32ad281
JB		 3338
3339 nl80211_put_wiphy_data_ap(bss);
58f6fbe0
JM		 3340}
3341
3342
8401a6b0
JM		 3343static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
3344{
3345 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
3346}
3347
3348
362f781e 3349static int
7524cfb1
JM		 3350wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
3351{
a2e40bb6 3352 struct i802_bss *bss = &drv->first_bss;
8401a6b0 3353 int send_rfkill_event = 0;
a2e40bb6
FF		 3354
3355 drv->ifindex = if_nametoindex(bss->ifname);
3356 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 3357
bbaf0837 3358#ifndef HOSTAPD
ff6a158b
JM		 3359 /*
3360 * Make sure the interface starts up in station mode unless this is a
3361 * dynamically added interface (e.g., P2P) that was already configured
3362 * with proper iftype.
3363 */
a5c696ad 3364 if (drv->ifindex != drv->global->if_add_ifindex &&
b1f625e0 3365 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 3366 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 3367 "use managed mode");
6e8183d7 3368 return -1;
a87c9d96
JM		 3369 }
3370
c81eff1a 3371 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 3372 if (rfkill_is_blocked(drv->rfkill)) {
3373 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
3374 "interface '%s' due to rfkill",
3375 bss->ifname);
a63063b4 3376 drv->if_disabled = 1;
8401a6b0
JM		 3377 send_rfkill_event = 1;
3378 } else {
3379 wpa_printf(MSG_ERROR, "nl80211: Could not set "
3380 "interface '%s' UP", bss->ifname);
3381 return -1;
3382 }
362f781e 3383 }
3f5285e8 3384
36d84860 3385 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 3386 1, IF_OPER_DORMANT);
bbaf0837 3387#endif /* HOSTAPD */
362f781e 3388
2fee890a
JM		 3389 if (wpa_driver_nl80211_capa(drv))
3390 return -1;
3391
c81eff1a 3392 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
341eebee 3393 bss->addr))
2136f480 3394 return -1;
f2ed8023 3395
8401a6b0
JM		 3396 if (send_rfkill_event) {
3397 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
3398 drv, drv->ctx);
3399 }
3400
362f781e 3401 return 0;
3f5285e8
JM		 3402}
3403
3404
8a27af5c
JM		 3405static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
3406{
3407 struct nl_msg *msg;
3408
3409 msg = nlmsg_alloc();
3410 if (!msg)
3411 return -ENOMEM;
3412
9fb04070 3413 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 3414 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3415
3416 return send_and_recv_msgs(drv, msg, NULL, NULL);
3417 nla_put_failure:
5883168a 3418 nlmsg_free(msg);
8a27af5c
JM		 3419 return -ENOBUFS;
3420}
8a27af5c
JM		 3421
3422
3f5285e8 3423/**
7e5ba1b9
JM		 3424 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
3425 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 3426 *
3427 * Shut down driver interface and processing of driver events. Free
3428 * private data buffer if one was allocated in wpa_driver_nl80211_init().
3429 */
7e5ba1b9 3430static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 3431{
a2e40bb6
FF		 3432 struct i802_bss *bss = priv;
3433 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 3434
873d0fcf 3435 bss->in_deinit = 1;
32ab4855
JB		 3436 if (drv->data_tx_status)
3437 eloop_unregister_read_sock(drv->eapol_tx_sock);
d12dab4c
JB		 3438 if (drv->eapol_tx_sock >= 0)
3439 close(drv->eapol_tx_sock);
f10bfc9a 3440
481234cf 3441 if (bss->nl_preq)
5582a5d1 3442 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 3443 if (bss->added_if_into_bridge) {
c81eff1a
BG		 3444 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
3445 bss->ifname) < 0)
94627f6c
JM		 3446 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3447 "interface %s from bridge %s: %s",
e17a2477 3448 bss->ifname, bss->brname, strerror(errno));
94627f6c 3449 }
e17a2477 3450 if (bss->added_bridge) {
c81eff1a 3451 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 3452 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3453 "bridge %s: %s",
e17a2477 3454 bss->brname, strerror(errno));
94627f6c
JM		 3455 }
3456
460456f8 3457 nl80211_remove_monitor_interface(drv);
8a27af5c 3458
b1f625e0 3459 if (is_ap_interface(drv->nlmode))
8a27af5c 3460 wpa_driver_nl80211_del_beacon(drv);
0915d02c 3461
bbaf0837
JM		 3462#ifdef HOSTAPD
3463 if (drv->last_freq_ht) {
3464 /* Clear HT flags from the driver */
3465 struct hostapd_freq_params freq;
3466 os_memset(&freq, 0, sizeof(freq));
3467 freq.freq = drv->last_freq;
3468 i802_set_freq(priv, &freq);
3469 }
3470
bbaf0837
JM		 3471 if (drv->eapol_sock >= 0) {
3472 eloop_unregister_read_sock(drv->eapol_sock);
3473 close(drv->eapol_sock);
3474 }
3475
3476 if (drv->if_indices != drv->default_if_indices)
3477 os_free(drv->if_indices);
1b648c7e 3478#endif /* HOSTAPD */
3f5285e8 3479
b3af99d2 3480 if (drv->disabled_11b_rates)
4e5cb1a3
JM		 3481 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3482
36d84860
BG		 3483 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
3484 IF_OPER_UP);
8401a6b0 3485 rfkill_deinit(drv->rfkill);
3f5285e8 3486
bbaf0837
JM		 3487 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3488
c81eff1a 3489 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
b1f625e0 3490 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
36488c05 3491 nl80211_mgmt_unsubscribe(bss, "deinit");
3f5285e8 3492
1afc986d 3493 nl_cb_put(drv->nl_cb);
3f5285e8 3494
cc7a48d1
JB		 3495 nl80211_destroy_bss(&drv->first_bss);
3496
3812464c
JM		 3497 os_free(drv->filter_ssids);
3498
536fd62d
JM		 3499 os_free(drv->auth_ie);
3500
dac12351 3501 if (drv->in_interface_list)
f2ed8023
JM		 3502 dl_list_del(&drv->list);
3503
3f5285e8
JM		 3504 os_free(drv);
3505}
3506
3507
3508/**
3509 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 3510 * @eloop_ctx: Driver private data
3f5285e8
JM		 3511 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
3512 *
3513 * This function can be used as registered timeout when starting a scan to
3514 * generate a scan completed event if the driver does not report this.
3515 */
3516static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
3517{
ad1e68e6 3518 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 3519 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 3520 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 3521 drv->ap_scan_as_station);
3522 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 3523 }
3f5285e8
JM		 3524 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
3525 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
3526}
3527
3528
95ac3bf4
JM		 3529static struct nl_msg *
3530nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
3531 struct wpa_driver_scan_params *params)
3f5285e8 3532{
95ac3bf4
JM		 3533 struct nl_msg *msg;
3534 int err;
6a1063e0 3535 size_t i;
3f5285e8 3536
0e75527f 3537 msg = nlmsg_alloc();
f0494d0f 3538 if (!msg)
95ac3bf4 3539 return NULL;
3812464c 3540
95ac3bf4 3541 nl80211_cmd(drv, msg, 0, cmd);
0e75527f 3542
95ac3bf4
JM		 3543 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) < 0)
3544 goto fail;
3f5285e8 3545
f0494d0f 3546 if (params->num_ssids) {
95ac3bf4 3547 struct nl_msg *ssids = nlmsg_alloc();
f0494d0f 3548 if (ssids == NULL)
95ac3bf4 3549 goto fail;
f0494d0f
JM		 3550 for (i = 0; i < params->num_ssids; i++) {
3551 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
3552 params->ssids[i].ssid,
3553 params->ssids[i].ssid_len);
95ac3bf4
JM		 3554 if (nla_put(ssids, i + 1, params->ssids[i].ssid_len,
3555 params->ssids[i].ssid) < 0) {
3556 nlmsg_free(ssids);
3557 goto fail;
3558 }
f0494d0f 3559 }
95ac3bf4
JM		 3560 err = nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3561 nlmsg_free(ssids);
3562 if (err < 0)
3563 goto fail;
3f5285e8
JM		 3564 }
3565
d173df52 3566 if (params->extra_ies) {
3b1c7bfd
JM		 3567 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
3568 params->extra_ies, params->extra_ies_len);
95ac3bf4
JM		 3569 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
3570 params->extra_ies) < 0)
3571 goto fail;
d173df52
JM		 3572 }
3573
d3a98225 3574 if (params->freqs) {
95ac3bf4 3575 struct nl_msg *freqs = nlmsg_alloc();
f0494d0f 3576 if (freqs == NULL)
95ac3bf4 3577 goto fail;
9fad706c
JM		 3578 for (i = 0; params->freqs[i]; i++) {
3579 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3580 "MHz", params->freqs[i]);
95ac3bf4
JM		 3581 if (nla_put_u32(freqs, i + 1, params->freqs[i]) < 0) {
3582 nlmsg_free(freqs);
3583 goto fail;
3584 }
9fad706c 3585 }
95ac3bf4
JM		 3586 err = nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES,
3587 freqs);
3588 nlmsg_free(freqs);
3589 if (err < 0)
3590 goto fail;
d3a98225
JM		 3591 }
3592
95ac3bf4
JM		 3593 os_free(drv->filter_ssids);
3594 drv->filter_ssids = params->filter_ssids;
3595 params->filter_ssids = NULL;
3596 drv->num_filter_ssids = params->num_filter_ssids;
3597
3598 return msg;
3599
3600fail:
3601 nlmsg_free(msg);
3602 return NULL;
3603}
3604
3605
3606/**
3607 * wpa_driver_nl80211_scan - Request the driver to initiate scan
3608 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3609 * @params: Scan parameters
3610 * Returns: 0 on success, -1 on failure
3611 */
3612static int wpa_driver_nl80211_scan(void *priv,
3613 struct wpa_driver_scan_params *params)
3614{
3615 struct i802_bss *bss = priv;
3616 struct wpa_driver_nl80211_data *drv = bss->drv;
3617 int ret = -1, timeout;
3618 struct nl_msg *msg, *rates = NULL;
3619
3620 drv->scan_for_auth = 0;
3621
3622 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params);
3623 if (!msg)
3624 return -1;
3625
47185fc7 3626 if (params->p2p_probe) {
8a6a1e1b
JM		 3627 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
3628
f0494d0f
JM		 3629 rates = nlmsg_alloc();
3630 if (rates == NULL)
3631 goto nla_put_failure;
3632
47185fc7
RM		 3633 /*
3634 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
3635 * by masking out everything else apart from the OFDM rates 6,
3636 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
3637 * rates are left enabled.
3638 */
3639 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
3640 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
f0494d0f
JM		 3641 if (nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates) <
3642 0)
3643 goto nla_put_failure;
970fa12e
RM		 3644
3645 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
47185fc7
RM		 3646 }
3647
0e75527f
JM		 3648 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3649 msg = NULL;
3650 if (ret) {
3651 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
3652 "(%s)", ret, strerror(-ret));
ad1e68e6 3653#ifdef HOSTAPD
b1f625e0 3654 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 3655 /*
3656 * mac80211 does not allow scan requests in AP mode, so
3657 * try to do this in station mode.
3658 */
b1f625e0
EP		 3659 if (wpa_driver_nl80211_set_mode(
3660 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 3661 goto nla_put_failure;
3662
3663 if (wpa_driver_nl80211_scan(drv, params)) {
b1f625e0 3664 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 3665 goto nla_put_failure;
3666 }
3667
3668 /* Restore AP mode when processing scan results */
b1f625e0 3669 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 3670 ret = 0;
3671 } else
3672 goto nla_put_failure;
3673#else /* HOSTAPD */
0e75527f 3674 goto nla_put_failure;
ad1e68e6 3675#endif /* HOSTAPD */
3f5285e8
JM		 3676 }
3677
3678 /* Not all drivers generate "scan completed" wireless event, so try to
3679 * read results after a timeout. */
0e75527f 3680 timeout = 10;
3f5285e8
JM		 3681 if (drv->scan_complete_events) {
3682 /*
d173df52
JM		 3683 * The driver seems to deliver events to notify when scan is
3684 * complete, so use longer timeout to avoid race conditions
3685 * with scanning and following association request.
3f5285e8
JM		 3686 */
3687 timeout = 30;
3688 }
3689 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
3690 "seconds", ret, timeout);
3691 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 3692 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
3693 drv, drv->ctx);
3f5285e8 3694
0e75527f 3695nla_put_failure:
0e75527f 3696 nlmsg_free(msg);
47185fc7 3697 nlmsg_free(rates);
3f5285e8
JM		 3698 return ret;
3699}
3700
3701
d21c63b9
LC		 3702/**
3703 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
3704 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3705 * @params: Scan parameters
3706 * @interval: Interval between scan cycles in milliseconds
3707 * Returns: 0 on success, -1 on failure or if not supported
3708 */
3709static int wpa_driver_nl80211_sched_scan(void *priv,
3710 struct wpa_driver_scan_params *params,
3711 u32 interval)
3712{
3713 struct i802_bss *bss = priv;
3714 struct wpa_driver_nl80211_data *drv = bss->drv;
6afbc3d6 3715 int ret = -1;
95ac3bf4 3716 struct nl_msg *msg;
6afbc3d6
JM		 3717 struct nl_msg *match_set_ssid = NULL, *match_sets = NULL;
3718 struct nl_msg *match_set_rssi = NULL;
d21c63b9
LC		 3719 size_t i;
3720
216eede8
DS		 3721#ifdef ANDROID
3722 if (!drv->capa.sched_scan_supported)
3723 return android_pno_start(bss, params);
3724#endif /* ANDROID */
3725
95ac3bf4 3726 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params);
6afbc3d6
JM		 3727 if (!msg)
3728 goto nla_put_failure;
d21c63b9 3729
d21c63b9
LC		 3730 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
3731
bf8d6d24
TP		 3732 if ((drv->num_filter_ssids &&
3733 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
3734 params->filter_rssi) {
bd525934 3735 match_sets = nlmsg_alloc();
6afbc3d6
JM		 3736 if (match_sets == NULL)
3737 goto nla_put_failure;
bd525934
LC		 3738
3739 for (i = 0; i < drv->num_filter_ssids; i++) {
3740 wpa_hexdump_ascii(MSG_MSGDUMP,
3741 "nl80211: Sched scan filter SSID",
3742 drv->filter_ssids[i].ssid,
3743 drv->filter_ssids[i].ssid_len);
3744
3745 match_set_ssid = nlmsg_alloc();
6afbc3d6
JM		 3746 if (match_set_ssid == NULL)
3747 goto nla_put_failure;
3748 NLA_PUT(match_set_ssid,
bd525934
LC		 3749 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
3750 drv->filter_ssids[i].ssid_len,
3751 drv->filter_ssids[i].ssid);
3752
6afbc3d6
JM		 3753 if (nla_put_nested(match_sets, i + 1, match_set_ssid) <
3754 0)
3755 goto nla_put_failure;
bd525934
LC		 3756 }
3757
bf8d6d24
TP		 3758 if (params->filter_rssi) {
3759 match_set_rssi = nlmsg_alloc();
6afbc3d6
JM		 3760 if (match_set_rssi == NULL)
3761 goto nla_put_failure;
bf8d6d24
TP		 3762 NLA_PUT_U32(match_set_rssi,
3763 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
3764 params->filter_rssi);
3765 wpa_printf(MSG_MSGDUMP,
3766 "nl80211: Sched scan RSSI filter %d dBm",
3767 params->filter_rssi);
6afbc3d6
JM		 3768 if (nla_put_nested(match_sets, 0, match_set_rssi) < 0)
3769 goto nla_put_failure;
bf8d6d24
TP		 3770 }
3771
6afbc3d6
JM		 3772 if (nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
3773 match_sets) < 0)
3774 goto nla_put_failure;
bd525934
LC		 3775 }
3776
d21c63b9
LC		 3777 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3778
3779 /* TODO: if we get an error here, we should fall back to normal scan */
3780
3781 msg = NULL;
3782 if (ret) {
3783 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
3784 "ret=%d (%s)", ret, strerror(-ret));
3785 goto nla_put_failure;
3786 }
3787
3788 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
3789 "scan interval %d msec", ret, interval);
3790
3791nla_put_failure:
6afbc3d6
JM		 3792 nlmsg_free(match_set_ssid);
3793 nlmsg_free(match_sets);
3794 nlmsg_free(match_set_rssi);
d21c63b9 3795 nlmsg_free(msg);
d21c63b9
LC		 3796 return ret;
3797}
3798
3799
3800/**
3801 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
3802 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3803 * Returns: 0 on success, -1 on failure or if not supported
3804 */
3805static int wpa_driver_nl80211_stop_sched_scan(void *priv)
3806{
3807 struct i802_bss *bss = priv;
3808 struct wpa_driver_nl80211_data *drv = bss->drv;
3809 int ret = 0;
3810 struct nl_msg *msg;
3811
216eede8
DS		 3812#ifdef ANDROID
3813 if (!drv->capa.sched_scan_supported)
3814 return android_pno_stop(bss);
3815#endif /* ANDROID */
3816
d21c63b9
LC		 3817 msg = nlmsg_alloc();
3818 if (!msg)
3819 return -1;
3820
9fb04070 3821 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 3822
3823 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3824
3825 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3826 msg = NULL;
3827 if (ret) {
3828 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
3829 "ret=%d (%s)", ret, strerror(-ret));
3830 goto nla_put_failure;
3831 }
3832
3833 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
3834
3835nla_put_failure:
3836 nlmsg_free(msg);
3837 return ret;
3838}
3839
3840
3812464c
JM		 3841static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
3842{
3843 const u8 *end, *pos;
3844
3845 if (ies == NULL)
3846 return NULL;
3847
3848 pos = ies;
3849 end = ies + ies_len;
3850
3851 while (pos + 1 < end) {
3852 if (pos + 2 + pos[1] > end)
3853 break;
3854 if (pos[0] == ie)
3855 return pos;
3856 pos += 2 + pos[1];
3857 }
3858
3859 return NULL;
3860}
3861
3862
3863static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
3864 const u8 *ie, size_t ie_len)
3865{
3866 const u8 *ssid;
3867 size_t i;
3868
3869 if (drv->filter_ssids == NULL)
3870 return 0;
3871
3872 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
3873 if (ssid == NULL)
3874 return 1;
3875
3876 for (i = 0; i < drv->num_filter_ssids; i++) {
3877 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
3878 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
3879 0)
3880 return 0;
3881 }
3882
3883 return 1;
3884}
3885
3886
b3db1e1c 3887static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 3888{
b3db1e1c
JM		 3889 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3890 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3891 struct nlattr *bss[NL80211_BSS_MAX + 1];
3892 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
3893 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
3894 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
3895 [NL80211_BSS_TSF] = { .type = NLA_U64 },
3896 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
3897 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
3898 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
3899 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
3900 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 3901 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 3902 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 3903 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 3904 };
3812464c
JM		 3905 struct nl80211_bss_info_arg *_arg = arg;
3906 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 3907 struct wpa_scan_res **tmp;
3908 struct wpa_scan_res *r;
8c090654
JM		 3909 const u8 *ie, *beacon_ie;
3910 size_t ie_len, beacon_ie_len;
3911 u8 *pos;
46957a9b 3912 size_t i;
3f5285e8 3913
b3db1e1c
JM		 3914 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3915 genlmsg_attrlen(gnlh, 0), NULL);
3916 if (!tb[NL80211_ATTR_BSS])
3917 return NL_SKIP;
3918 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
3919 bss_policy))
3920 return NL_SKIP;
f5a8d422
JM		 3921 if (bss[NL80211_BSS_STATUS]) {
3922 enum nl80211_bss_status status;
3923 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3924 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3925 bss[NL80211_BSS_FREQUENCY]) {
3926 _arg->assoc_freq =
3927 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3928 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
3929 _arg->assoc_freq);
3930 }
20f5a4c2
JM		 3931 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3932 bss[NL80211_BSS_BSSID]) {
3933 os_memcpy(_arg->assoc_bssid,
3934 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
3935 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
3936 MACSTR, MAC2STR(_arg->assoc_bssid));
3937 }
f5a8d422
JM		 3938 }
3939 if (!res)
3940 return NL_SKIP;
b3db1e1c
JM		 3941 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
3942 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3943 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3944 } else {
3945 ie = NULL;
3946 ie_len = 0;
3947 }
8c090654
JM		 3948 if (bss[NL80211_BSS_BEACON_IES]) {
3949 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
3950 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
3951 } else {
3952 beacon_ie = NULL;
3953 beacon_ie_len = 0;
3954 }
3f5285e8 3955
3812464c
JM		 3956 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
3957 ie ? ie_len : beacon_ie_len))
3958 return NL_SKIP;
3959
8c090654 3960 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 3961 if (r == NULL)
b3db1e1c
JM		 3962 return NL_SKIP;
3963 if (bss[NL80211_BSS_BSSID])
3964 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
3965 ETH_ALEN);
3966 if (bss[NL80211_BSS_FREQUENCY])
3967 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3968 if (bss[NL80211_BSS_BEACON_INTERVAL])
3969 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
3970 if (bss[NL80211_BSS_CAPABILITY])
3971 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 3972 r->flags |= WPA_SCAN_NOISE_INVALID;
3973 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 3974 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 3975 r->level /= 100; /* mBm to dBm */
3976 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
3977 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
3978 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
98ac6763 3979 r->flags |= WPA_SCAN_QUAL_INVALID;
7c2849d2
JM		 3980 } else
3981 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 3982 if (bss[NL80211_BSS_TSF])
3983 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 3984 if (bss[NL80211_BSS_SEEN_MS_AGO])
3985 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 3986 r->ie_len = ie_len;
8c090654
JM		 3987 pos = (u8 *) (r + 1);
3988 if (ie) {
3989 os_memcpy(pos, ie, ie_len);
3990 pos += ie_len;
3991 }
3992 r->beacon_ie_len = beacon_ie_len;
3993 if (beacon_ie)
3994 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 3995
e6b8efeb
JM		 3996 if (bss[NL80211_BSS_STATUS]) {
3997 enum nl80211_bss_status status;
3998 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3999 switch (status) {
4000 case NL80211_BSS_STATUS_AUTHENTICATED:
4001 r->flags |= WPA_SCAN_AUTHENTICATED;
4002 break;
4003 case NL80211_BSS_STATUS_ASSOCIATED:
4004 r->flags |= WPA_SCAN_ASSOCIATED;
4005 break;
4006 default:
4007 break;
4008 }
4009 }
4010
46957a9b
JM		 4011 /*
4012 * cfg80211 maintains separate BSS table entries for APs if the same
4013 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
4014 * not use frequency as a separate key in the BSS table, so filter out
4015 * duplicated entries. Prefer associated BSS entry in such a case in
4016 * order to get the correct frequency into the BSS table.
4017 */
4018 for (i = 0; i < res->num; i++) {
4019 const u8 *s1, *s2;
4020 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
4021 continue;
4022
4023 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
4024 res->res[i]->ie_len, WLAN_EID_SSID);
4025 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
4026 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
4027 os_memcmp(s1, s2, 2 + s1[1]) != 0)
4028 continue;
4029
4030 /* Same BSSID,SSID was already included in scan results */
4031 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
4032 "for " MACSTR, MAC2STR(r->bssid));
4033
4034 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
4035 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
4036 os_free(res->res[i]);
4037 res->res[i] = r;
4038 } else
4039 os_free(r);
4040 return NL_SKIP;
4041 }
4042
067ffa26
JM		 4043 tmp = os_realloc_array(res->res, res->num + 1,
4044 sizeof(struct wpa_scan_res *));
3f5285e8
JM		 4045 if (tmp == NULL) {
4046 os_free(r);
b3db1e1c 4047 return NL_SKIP;
3f5285e8
JM		 4048 }
4049 tmp[res->num++] = r;
4050 res->res = tmp;
b3db1e1c
JM		 4051
4052 return NL_SKIP;
3f5285e8 4053}
b3db1e1c 4054
3f5285e8 4055
d72aad94
JM		 4056static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
4057 const u8 *addr)
4058{
4059 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
4060 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 4061 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 4062 wpa_driver_nl80211_mlme(drv, addr,
4063 NL80211_CMD_DEAUTHENTICATE,
77339912 4064 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 4065 }
4066}
4067
4068
e6b8efeb
JM		 4069static void wpa_driver_nl80211_check_bss_status(
4070 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
4071{
4072 size_t i;
4073
4074 for (i = 0; i < res->num; i++) {
4075 struct wpa_scan_res *r = res->res[i];
4076 if (r->flags & WPA_SCAN_AUTHENTICATED) {
4077 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4078 "indicates BSS status with " MACSTR
4079 " as authenticated",
4080 MAC2STR(r->bssid));
b1f625e0 4081 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4082 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
4083 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
4084 0) {
4085 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
4086 " in local state (auth=" MACSTR
4087 " assoc=" MACSTR ")",
4088 MAC2STR(drv->auth_bssid),
4089 MAC2STR(drv->bssid));
582507be 4090 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 4091 }
4092 }
4093
4094 if (r->flags & WPA_SCAN_ASSOCIATED) {
4095 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4096 "indicate BSS status with " MACSTR
4097 " as associated",
4098 MAC2STR(r->bssid));
b1f625e0 4099 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4100 !drv->associated) {
4101 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4102 "(not associated) does not match "
4103 "with BSS state");
d72aad94 4104 clear_state_mismatch(drv, r->bssid);
b1f625e0 4105 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4106 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
4107 0) {
4108 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4109 "(associated with " MACSTR ") does "
4110 "not match with BSS state",
d72aad94
JM		 4111 MAC2STR(drv->bssid));
4112 clear_state_mismatch(drv, r->bssid);
4113 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 4114 }
4115 }
4116 }
4117}
4118
4119
7e5ba1b9 4120static struct wpa_scan_results *
8856462d 4121nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 4122{
b3db1e1c 4123 struct nl_msg *msg;
3f5285e8 4124 struct wpa_scan_results *res;
b3db1e1c 4125 int ret;
3812464c 4126 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 4127
4128 res = os_zalloc(sizeof(*res));
b3db1e1c 4129 if (res == NULL)
8e2c104f 4130 return NULL;
b3db1e1c
JM		 4131 msg = nlmsg_alloc();
4132 if (!msg)
4133 goto nla_put_failure;
3f5285e8 4134
9fb04070 4135 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
b3db1e1c 4136 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 4137
3812464c
JM		 4138 arg.drv = drv;
4139 arg.res = res;
4140 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 4141 msg = NULL;
4142 if (ret == 0) {
577db0ae
GM		 4143 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
4144 "BSSes)", (unsigned long) res->num);
4145 nl80211_get_noise_for_scan_results(drv, res);
b3db1e1c 4146 return res;
3f5285e8 4147 }
b3db1e1c
JM		 4148 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
4149 "(%s)", ret, strerror(-ret));
4150nla_put_failure:
4151 nlmsg_free(msg);
4152 wpa_scan_results_free(res);
4153 return NULL;
3f5285e8
JM		 4154}
4155
4156
8856462d
JM		 4157/**
4158 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
4159 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
4160 * Returns: Scan results on success, -1 on failure
4161 */
4162static struct wpa_scan_results *
4163wpa_driver_nl80211_get_scan_results(void *priv)
4164{
a2e40bb6
FF		 4165 struct i802_bss *bss = priv;
4166 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 4167 struct wpa_scan_results *res;
4168
4169 res = nl80211_get_scan_results(drv);
4170 if (res)
4171 wpa_driver_nl80211_check_bss_status(drv, res);
4172 return res;
4173}
4174
4175
4176static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
4177{
4178 struct wpa_scan_results *res;
4179 size_t i;
4180
4181 res = nl80211_get_scan_results(drv);
4182 if (res == NULL) {
4183 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
4184 return;
4185 }
4186
4187 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
4188 for (i = 0; i < res->num; i++) {
4189 struct wpa_scan_res *r = res->res[i];
4190 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
4191 (int) i, (int) res->num, MAC2STR(r->bssid),
4192 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
4193 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
4194 }
4195
4196 wpa_scan_results_free(res);
4197}
4198
4199
642187d6 4200static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 4201 enum wpa_alg alg, const u8 *addr,
4202 int key_idx, int set_tx,
642187d6
JM		 4203 const u8 *seq, size_t seq_len,
4204 const u8 *key, size_t key_len)
3f5285e8 4205{
a2e40bb6
FF		 4206 struct i802_bss *bss = priv;
4207 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 4208 int ifindex = if_nametoindex(ifname);
3f5285e8 4209 struct nl_msg *msg;
1ad1cdc2 4210 int ret;
3f5285e8 4211
1ad1cdc2
JM		 4212 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
4213 "set_tx=%d seq_len=%lu key_len=%lu",
4214 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8 4215 (unsigned long) seq_len, (unsigned long) key_len);
8c66e185
JM		 4216#ifdef CONFIG_TDLS
4217 if (key_idx == -1)
4218 key_idx = 0;
4219#endif /* CONFIG_TDLS */
3f5285e8
JM		 4220
4221 msg = nlmsg_alloc();
1ad1cdc2
JM		 4222 if (!msg)
4223 return -ENOMEM;
3f5285e8
JM		 4224
4225 if (alg == WPA_ALG_NONE) {
9fb04070 4226 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 4227 } else {
9fb04070 4228 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 4229 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 4230 switch (alg) {
4231 case WPA_ALG_WEP:
4232 if (key_len == 5)
4233 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4234 WLAN_CIPHER_SUITE_WEP40);
4235 else
4236 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4237 WLAN_CIPHER_SUITE_WEP104);
4238 break;
4239 case WPA_ALG_TKIP:
4240 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4241 WLAN_CIPHER_SUITE_TKIP);
4242 break;
4243 case WPA_ALG_CCMP:
4244 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4245 WLAN_CIPHER_SUITE_CCMP);
4246 break;
eb7719ff
JM		 4247 case WPA_ALG_GCMP:
4248 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4249 WLAN_CIPHER_SUITE_GCMP);
4250 break;
d723bab4
JM		 4251 case WPA_ALG_IGTK:
4252 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4253 WLAN_CIPHER_SUITE_AES_CMAC);
4254 break;
369c8d7b
JM		 4255 case WPA_ALG_SMS4:
4256 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4257 WLAN_CIPHER_SUITE_SMS4);
4258 break;
4259 case WPA_ALG_KRK:
4260 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4261 WLAN_CIPHER_SUITE_KRK);
4262 break;
d723bab4
JM		 4263 default:
4264 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4265 "algorithm %d", __func__, alg);
3f5285e8
JM		 4266 nlmsg_free(msg);
4267 return -1;
4268 }
4269 }
4270
849ef835 4271 if (seq && seq_len)
1ad1cdc2
JM		 4272 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
4273
0382097e 4274 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 4275 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
4276 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 4277
4278 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
4279 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
4280 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
4281 NL80211_KEYTYPE_GROUP);
4282 }
60ea8187
JM		 4283 } else if (addr && is_broadcast_ether_addr(addr)) {
4284 struct nl_msg *types;
4285 int err;
4286 wpa_printf(MSG_DEBUG, " broadcast key");
4287 types = nlmsg_alloc();
4288 if (!types)
4289 goto nla_put_failure;
4290 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4291 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4292 types);
4293 nlmsg_free(types);
4294 if (err)
4295 goto nla_put_failure;
3f5285e8
JM		 4296 }
4297 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 4298 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 4299
1ad1cdc2 4300 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 4301 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 4302 ret = 0;
4303 if (ret)
4304 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
4305 ret, strerror(-ret));
3f5285e8 4306
1ad1cdc2
JM		 4307 /*
4308 * If we failed or don't need to set the default TX key (below),
4309 * we're done here.
4310 */
4311 if (ret || !set_tx || alg == WPA_ALG_NONE)
4312 return ret;
b1f625e0 4313 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 4314 !is_broadcast_ether_addr(addr))
de12717a 4315 return ret;
3f5285e8 4316
1ad1cdc2
JM		 4317 msg = nlmsg_alloc();
4318 if (!msg)
4319 return -ENOMEM;
3f5285e8 4320
9fb04070 4321 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 4322 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4323 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4324 if (alg == WPA_ALG_IGTK)
4325 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
4326 else
4327 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 4328 if (addr && is_broadcast_ether_addr(addr)) {
4329 struct nl_msg *types;
4330 int err;
4331 types = nlmsg_alloc();
4332 if (!types)
4333 goto nla_put_failure;
4334 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4335 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4336 types);
4337 nlmsg_free(types);
4338 if (err)
4339 goto nla_put_failure;
4340 } else if (addr) {
4341 struct nl_msg *types;
4342 int err;
4343 types = nlmsg_alloc();
4344 if (!types)
4345 goto nla_put_failure;
4346 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
4347 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4348 types);
4349 nlmsg_free(types);
4350 if (err)
4351 goto nla_put_failure;
4352 }
3f5285e8 4353
1ad1cdc2
JM		 4354 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4355 if (ret == -ENOENT)
4356 ret = 0;
4357 if (ret)
4358 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
4359 "err=%d %s)", ret, strerror(-ret));
4360 return ret;
3f5285e8
JM		 4361
4362nla_put_failure:
5883168a 4363 nlmsg_free(msg);
6241fcb1 4364 return -ENOBUFS;
3f5285e8
JM		 4365}
4366
4367
71934751 4368static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 4369 int key_idx, int defkey,
4370 const u8 *seq, size_t seq_len,
4371 const u8 *key, size_t key_len)
4372{
4373 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
4374 if (!key_attr)
4375 return -1;
4376
4377 if (defkey && alg == WPA_ALG_IGTK)
4378 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
4379 else if (defkey)
4380 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4381
4382 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
4383
d723bab4
JM		 4384 switch (alg) {
4385 case WPA_ALG_WEP:
4386 if (key_len == 5)
2aa5f847
JM		 4387 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4388 WLAN_CIPHER_SUITE_WEP40);
d723bab4 4389 else
2aa5f847
JM		 4390 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4391 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 4392 break;
4393 case WPA_ALG_TKIP:
2aa5f847 4394 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 4395 break;
4396 case WPA_ALG_CCMP:
2aa5f847 4397 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4 4398 break;
eb7719ff
JM		 4399 case WPA_ALG_GCMP:
4400 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP);
4401 break;
d723bab4 4402 case WPA_ALG_IGTK:
2aa5f847
JM		 4403 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4404 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 4405 break;
4406 default:
4407 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4408 "algorithm %d", __func__, alg);
0194fedb 4409 return -1;
d723bab4 4410 }
0194fedb
JB		 4411
4412 if (seq && seq_len)
4413 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
4414
4415 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
4416
4417 nla_nest_end(msg, key_attr);
4418
4419 return 0;
4420 nla_put_failure:
4421 return -1;
4422}
4423
c811d5bc 4424
cfaab580
ZY		 4425static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
4426 struct nl_msg *msg)
4427{
4428 int i, privacy = 0;
4429 struct nlattr *nl_keys, *nl_key;
4430
4431 for (i = 0; i < 4; i++) {
4432 if (!params->wep_key[i])
4433 continue;
4434 privacy = 1;
4435 break;
4436 }
ce04af5a
JM		 4437 if (params->wps == WPS_MODE_PRIVACY)
4438 privacy = 1;
4439 if (params->pairwise_suite &&
4440 params->pairwise_suite != WPA_CIPHER_NONE)
4441 privacy = 1;
4442
cfaab580
ZY		 4443 if (!privacy)
4444 return 0;
4445
4446 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4447
4448 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
4449 if (!nl_keys)
4450 goto nla_put_failure;
4451
4452 for (i = 0; i < 4; i++) {
4453 if (!params->wep_key[i])
4454 continue;
4455
4456 nl_key = nla_nest_start(msg, i);
4457 if (!nl_key)
4458 goto nla_put_failure;
4459
4460 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
4461 params->wep_key[i]);
4462 if (params->wep_key_len[i] == 5)
4463 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4464 WLAN_CIPHER_SUITE_WEP40);
4465 else
4466 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4467 WLAN_CIPHER_SUITE_WEP104);
4468
4469 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
4470
4471 if (i == params->wep_tx_keyidx)
4472 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4473
4474 nla_nest_end(msg, nl_key);
4475 }
4476 nla_nest_end(msg, nl_keys);
4477
4478 return 0;
4479
4480nla_put_failure:
4481 return -ENOBUFS;
4482}
4483
4484
c2a04078 4485static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 4486 const u8 *addr, int cmd, u16 reason_code,
4487 int local_state_change)
c2a04078
JM		 4488{
4489 int ret = -1;
4490 struct nl_msg *msg;
4491
4492 msg = nlmsg_alloc();
4493 if (!msg)
4494 return -1;
4495
9fb04070 4496 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 4497
4498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4499 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
817762d9
MI		 4500 if (addr)
4501 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 4502 if (local_state_change)
4503 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 4504
4505 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4506 msg = NULL;
4507 if (ret) {
3b7ea880
BG		 4508 wpa_dbg(drv->ctx, MSG_DEBUG,
4509 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
4510 reason_code, ret, strerror(-ret));
c2a04078
JM		 4511 goto nla_put_failure;
4512 }
4513 ret = 0;
4514
4515nla_put_failure:
4516 nlmsg_free(msg);
4517 return ret;
4518}
3f5285e8
JM		 4519
4520
cfaab580 4521static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
817762d9 4522 int reason_code)
cfaab580 4523{
817762d9 4524 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
cfaab580 4525 drv->associated = 0;
a8c5b43a 4526 drv->ignore_next_local_disconnect = 0;
817762d9
MI		 4527 /* Disconnect command doesn't need BSSID - it uses cached value */
4528 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
77339912 4529 reason_code, 0);
cfaab580
ZY		 4530}
4531
4532
3f5285e8 4533static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 4534 int reason_code)
3f5285e8 4535{
a2e40bb6
FF		 4536 struct i802_bss *bss = priv;
4537 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580 4538 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
817762d9 4539 return wpa_driver_nl80211_disconnect(drv, reason_code);
2e75a2b3
JM		 4540 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4541 __func__, MAC2STR(addr), reason_code);
13405f35 4542 drv->associated = 0;
21bdbe38
JM		 4543 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
4544 return nl80211_leave_ibss(drv);
c2a04078 4545 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 4546 reason_code, 0);
3f5285e8
JM		 4547}
4548
4549
4550static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 4551 int reason_code)
3f5285e8 4552{
a2e40bb6
FF		 4553 struct i802_bss *bss = priv;
4554 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580 4555 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
817762d9 4556 return wpa_driver_nl80211_disconnect(drv, reason_code);
c2a04078 4557 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 4558 drv->associated = 0;
c2a04078 4559 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 4560 reason_code, 0);
3f5285e8
JM		 4561}
4562
4563
536fd62d
JM		 4564static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
4565 struct wpa_driver_auth_params *params)
4566{
4567 int i;
4568
4569 drv->auth_freq = params->freq;
4570 drv->auth_alg = params->auth_alg;
4571 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
4572 drv->auth_local_state_change = params->local_state_change;
4573 drv->auth_p2p = params->p2p;
4574
4575 if (params->bssid)
4576 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
4577 else
4578 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
4579
4580 if (params->ssid) {
4581 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
4582 drv->auth_ssid_len = params->ssid_len;
4583 } else
4584 drv->auth_ssid_len = 0;
4585
4586
4587 os_free(drv->auth_ie);
4588 drv->auth_ie = NULL;
4589 drv->auth_ie_len = 0;
4590 if (params->ie) {
4591 drv->auth_ie = os_malloc(params->ie_len);
4592 if (drv->auth_ie) {
4593 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
4594 drv->auth_ie_len = params->ie_len;
4595 }
4596 }
4597
4598 for (i = 0; i < 4; i++) {
4599 if (params->wep_key[i] && params->wep_key_len[i] &&
4600 params->wep_key_len[i] <= 16) {
4601 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
4602 params->wep_key_len[i]);
4603 drv->auth_wep_key_len[i] = params->wep_key_len[i];
4604 } else
4605 drv->auth_wep_key_len[i] = 0;
4606 }
4607}
4608
4609
c2a04078
JM		 4610static int wpa_driver_nl80211_authenticate(
4611 void *priv, struct wpa_driver_auth_params *params)
4612{
a2e40bb6
FF		 4613 struct i802_bss *bss = priv;
4614 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 4615 int ret = -1, i;
c2a04078
JM		 4616 struct nl_msg *msg;
4617 enum nl80211_auth_type type;
2f4f73b1 4618 enum nl80211_iftype nlmode;
6d6f4bb8 4619 int count = 0;
536fd62d
JM		 4620 int is_retry;
4621
4622 is_retry = drv->retry_auth;
4623 drv->retry_auth = 0;
c2a04078
JM		 4624
4625 drv->associated = 0;
e6b8efeb 4626 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 4627 /* FIX: IBSS mode */
2f4f73b1
EP		 4628 nlmode = params->p2p ?
4629 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
4630 if (drv->nlmode != nlmode &&
4631 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032
JM		 4632 return -1;
4633
6d6f4bb8 4634retry:
c2a04078
JM		 4635 msg = nlmsg_alloc();
4636 if (!msg)
4637 return -1;
4638
4639 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
4640 drv->ifindex);
a0b2f99b 4641
9fb04070 4642 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 4643
a0b2f99b
JM		 4644 for (i = 0; i < 4; i++) {
4645 if (!params->wep_key[i])
4646 continue;
2ea2fcc7
HS		 4647 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
4648 NULL, i,
a0b2f99b
JM		 4649 i == params->wep_tx_keyidx, NULL, 0,
4650 params->wep_key[i],
4651 params->wep_key_len[i]);
0194fedb
JB		 4652 if (params->wep_tx_keyidx != i)
4653 continue;
4654 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
4655 params->wep_key[i], params->wep_key_len[i])) {
4656 nlmsg_free(msg);
4657 return -1;
4658 }
a0b2f99b
JM		 4659 }
4660
c2a04078
JM		 4661 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4662 if (params->bssid) {
4663 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4664 MAC2STR(params->bssid));
4665 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4666 }
4667 if (params->freq) {
4668 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4669 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4670 }
4671 if (params->ssid) {
4672 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4673 params->ssid, params->ssid_len);
4674 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4675 params->ssid);
4676 }
4677 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
4678 if (params->ie)
4679 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
569fed90
JM		 4680 if (params->sae_data) {
4681 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
4682 params->sae_data_len);
4683 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
4684 params->sae_data);
4685 }
abd9fafa 4686 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 4687 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 4688 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 4689 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 4690 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 4691 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 4692 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078 4693 type = NL80211_AUTHTYPE_FT;
569fed90
JM		 4694 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
4695 type = NL80211_AUTHTYPE_SAE;
c2a04078
JM		 4696 else
4697 goto nla_put_failure;
4698 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4699 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 4700 if (params->local_state_change) {
4701 wpa_printf(MSG_DEBUG, " * Local state change only");
4702 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4703 }
c2a04078
JM		 4704
4705 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4706 msg = NULL;
4707 if (ret) {
3b7ea880
BG		 4708 wpa_dbg(drv->ctx, MSG_DEBUG,
4709 "nl80211: MLME command failed (auth): ret=%d (%s)",
4710 ret, strerror(-ret));
6d6f4bb8 4711 count++;
77339912
JM		 4712 if (ret == -EALREADY && count == 1 && params->bssid &&
4713 !params->local_state_change) {
6d6f4bb8
JM		 4714 /*
4715 * mac80211 does not currently accept new
4716 * authentication if we are already authenticated. As a
4717 * workaround, force deauthentication and try again.
4718 */
4719 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
4720 "after forced deauthentication");
4721 wpa_driver_nl80211_deauthenticate(
5205c4f9 4722 bss, params->bssid,
6d6f4bb8
JM		 4723 WLAN_REASON_PREV_AUTH_NOT_VALID);
4724 nlmsg_free(msg);
4725 goto retry;
4726 }
536fd62d
JM		 4727
4728 if (ret == -ENOENT && params->freq && !is_retry) {
4729 /*
4730 * cfg80211 has likely expired the BSS entry even
4731 * though it was previously available in our internal
4732 * BSS table. To recover quickly, start a single
4733 * channel scan on the specified channel.
4734 */
4735 struct wpa_driver_scan_params scan;
4736 int freqs[2];
4737
4738 os_memset(&scan, 0, sizeof(scan));
4739 scan.num_ssids = 1;
4740 if (params->ssid) {
4741 scan.ssids[0].ssid = params->ssid;
4742 scan.ssids[0].ssid_len = params->ssid_len;
4743 }
4744 freqs[0] = params->freq;
4745 freqs[1] = 0;
4746 scan.freqs = freqs;
4747 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
4748 "channel scan to refresh cfg80211 BSS "
4749 "entry");
4750 ret = wpa_driver_nl80211_scan(bss, &scan);
4751 if (ret == 0) {
4752 nl80211_copy_auth_params(drv, params);
4753 drv->scan_for_auth = 1;
4754 }
8c3ba078
JM		 4755 } else if (is_retry) {
4756 /*
4757 * Need to indicate this with an event since the return
4758 * value from the retry is not delivered to core code.
4759 */
4760 union wpa_event_data event;
4761 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
4762 "failed");
4763 os_memset(&event, 0, sizeof(event));
4764 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
4765 ETH_ALEN);
4766 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
4767 &event);
536fd62d
JM		 4768 }
4769
c2a04078
JM		 4770 goto nla_put_failure;
4771 }
4772 ret = 0;
4773 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
4774 "successfully");
4775
4776nla_put_failure:
4777 nlmsg_free(msg);
4778 return ret;
4779}
4780
4781
536fd62d
JM		 4782static int wpa_driver_nl80211_authenticate_retry(
4783 struct wpa_driver_nl80211_data *drv)
4784{
4785 struct wpa_driver_auth_params params;
4786 struct i802_bss *bss = &drv->first_bss;
4787 int i;
4788
4789 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
4790
4791 os_memset(&params, 0, sizeof(params));
4792 params.freq = drv->auth_freq;
4793 params.auth_alg = drv->auth_alg;
4794 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
4795 params.local_state_change = drv->auth_local_state_change;
4796 params.p2p = drv->auth_p2p;
4797
4798 if (!is_zero_ether_addr(drv->auth_bssid_))
4799 params.bssid = drv->auth_bssid_;
4800
4801 if (drv->auth_ssid_len) {
4802 params.ssid = drv->auth_ssid;
4803 params.ssid_len = drv->auth_ssid_len;
4804 }
4805
4806 params.ie = drv->auth_ie;
4807 params.ie_len = drv->auth_ie_len;
4808
4809 for (i = 0; i < 4; i++) {
4810 if (drv->auth_wep_key_len[i]) {
4811 params.wep_key[i] = drv->auth_wep_key[i];
4812 params.wep_key_len[i] = drv->auth_wep_key_len[i];
4813 }
4814 }
4815
4816 drv->retry_auth = 1;
4817 return wpa_driver_nl80211_authenticate(bss, &params);
4818}
4819
4820
282d5590
JM		 4821struct phy_info_arg {
4822 u16 *num_modes;
4823 struct hostapd_hw_modes *modes;
4824};
4825
4826static int phy_info_handler(struct nl_msg *msg, void *arg)
4827{
4828 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
4829 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4830 struct phy_info_arg *phy_info = arg;
4831
4832 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
4833
4834 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
4835 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
4836 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
4837 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
4838 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
4839 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
4840 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
4841 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
4842 };
4843
4844 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
4845 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
4846 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
4847 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
4848 };
4849
4850 struct nlattr *nl_band;
4851 struct nlattr *nl_freq;
4852 struct nlattr *nl_rate;
4853 int rem_band, rem_freq, rem_rate;
4854 struct hostapd_hw_modes *mode;
4855 int idx, mode_is_set;
4856
4857 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4858 genlmsg_attrlen(gnlh, 0), NULL);
4859
4860 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
4861 return NL_SKIP;
4862
4863 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
067ffa26
JM		 4864 mode = os_realloc_array(phy_info->modes,
4865 *phy_info->num_modes + 1,
4866 sizeof(*mode));
282d5590
JM		 4867 if (!mode)
4868 return NL_SKIP;
4869 phy_info->modes = mode;
4870
4871 mode_is_set = 0;
4872
4873 mode = &phy_info->modes[*(phy_info->num_modes)];
4874 memset(mode, 0, sizeof(*mode));
e3b473eb 4875 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
282d5590
JM		 4876 *(phy_info->num_modes) += 1;
4877
4878 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
4879 nla_len(nl_band), NULL);
4880
4881 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
4882 mode->ht_capab = nla_get_u16(
4883 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
4884 }
4885
be8eb8ab
JM		 4886 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
4887 mode->a_mpdu_params |= nla_get_u8(
4888 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
4889 0x03;
4890 }
4891
4892 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
4893 mode->a_mpdu_params |= nla_get_u8(
4894 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
4895 2;
4896 }
4897
08eb154d
JM		 4898 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
4899 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
4900 u8 *mcs;
4901 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
4902 os_memcpy(mode->mcs_set, mcs, 16);
4903 }
4904
990933fb
MP		 4905 if (tb_band[NL80211_BAND_ATTR_VHT_CAPA]) {
4906 mode->vht_capab = nla_get_u32(
4907 tb_band[NL80211_BAND_ATTR_VHT_CAPA]);
4908 }
4909
4910 if (tb_band[NL80211_BAND_ATTR_VHT_MCS_SET] &&
4911 nla_len(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET])) {
4912 u8 *mcs;
4913 mcs = nla_data(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
4914 os_memcpy(mode->vht_mcs_set, mcs, 8);
4915 }
4916
282d5590
JM		 4917 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4918 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4919 nla_len(nl_freq), freq_policy);
4920 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4921 continue;
4922 mode->num_channels++;
4923 }
4924
f9884c09
JM		 4925 mode->channels = os_calloc(mode->num_channels,
4926 sizeof(struct hostapd_channel_data));
282d5590
JM		 4927 if (!mode->channels)
4928 return NL_SKIP;
4929
4930 idx = 0;
4931
4932 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4933 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4934 nla_len(nl_freq), freq_policy);
4935 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4936 continue;
4937
4938 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
4939 mode->channels[idx].flag = 0;
4940
4941 if (!mode_is_set) {
4942 /* crude heuristic */
4943 if (mode->channels[idx].freq < 4000)
4944 mode->mode = HOSTAPD_MODE_IEEE80211B;
4945 else
4946 mode->mode = HOSTAPD_MODE_IEEE80211A;
4947 mode_is_set = 1;
4948 }
4949
4950 /* crude heuristic */
4951 if (mode->channels[idx].freq < 4000)
5a0ffb5f 4952 if (mode->channels[idx].freq == 2484)
282d5590
JM		 4953 mode->channels[idx].chan = 14;
4954 else
4955 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
4956 else
4957 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
4958
4959 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4960 mode->channels[idx].flag |=
4961 HOSTAPD_CHAN_DISABLED;
4962 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
4963 mode->channels[idx].flag |=
4964 HOSTAPD_CHAN_PASSIVE_SCAN;
4965 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
4966 mode->channels[idx].flag |=
4967 HOSTAPD_CHAN_NO_IBSS;
4968 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
4969 mode->channels[idx].flag |=
4970 HOSTAPD_CHAN_RADAR;
4971
4972 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
4973 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4974 mode->channels[idx].max_tx_power =
4975 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
4976
4977 idx++;
4978 }
4979
4980 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4981 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4982 nla_len(nl_rate), rate_policy);
4983 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4984 continue;
4985 mode->num_rates++;
4986 }
4987
f9884c09 4988 mode->rates = os_calloc(mode->num_rates, sizeof(int));
282d5590
JM		 4989 if (!mode->rates)
4990 return NL_SKIP;
4991
4992 idx = 0;
4993
4994 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4995 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4996 nla_len(nl_rate), rate_policy);
4997 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4998 continue;
fb7842aa 4999 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 5000
5001 /* crude heuristic */
5002 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 5003 mode->rates[idx] > 200)
282d5590
JM		 5004 mode->mode = HOSTAPD_MODE_IEEE80211G;
5005
282d5590
JM		 5006 idx++;
5007 }
5008 }
5009
5010 return NL_SKIP;
5011}
5012
5013static struct hostapd_hw_modes *
5014wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
5015{
5016 u16 m;
5017 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
5018 int i, mode11g_idx = -1;
5019
5020 /* If only 802.11g mode is included, use it to construct matching
5021 * 802.11b mode data. */
5022
5023 for (m = 0; m < *num_modes; m++) {
5024 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
5025 return modes; /* 802.11b already included */
5026 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
5027 mode11g_idx = m;
5028 }
5029
5030 if (mode11g_idx < 0)
5031 return modes; /* 2.4 GHz band not supported at all */
5032
067ffa26 5033 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
282d5590
JM		 5034 if (nmodes == NULL)
5035 return modes; /* Could not add 802.11b mode */
5036
5037 mode = &nmodes[*num_modes];
5038 os_memset(mode, 0, sizeof(*mode));
5039 (*num_modes)++;
5040 modes = nmodes;
5041
5042 mode->mode = HOSTAPD_MODE_IEEE80211B;
5043
5044 mode11g = &modes[mode11g_idx];
5045 mode->num_channels = mode11g->num_channels;
5046 mode->channels = os_malloc(mode11g->num_channels *
5047 sizeof(struct hostapd_channel_data));
5048 if (mode->channels == NULL) {
5049 (*num_modes)--;
5050 return modes; /* Could not add 802.11b mode */
5051 }
5052 os_memcpy(mode->channels, mode11g->channels,
5053 mode11g->num_channels * sizeof(struct hostapd_channel_data));
5054
5055 mode->num_rates = 0;
fb7842aa 5056 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 5057 if (mode->rates == NULL) {
5058 os_free(mode->channels);
5059 (*num_modes)--;
5060 return modes; /* Could not add 802.11b mode */
5061 }
5062
5063 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 5064 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
5065 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 5066 continue;
5067 mode->rates[mode->num_rates] = mode11g->rates[i];
5068 mode->num_rates++;
5069 if (mode->num_rates == 4)
5070 break;
5071 }
5072
5073 if (mode->num_rates == 0) {
5074 os_free(mode->channels);
5075 os_free(mode->rates);
5076 (*num_modes)--;
5077 return modes; /* No 802.11b rates */
5078 }
5079
5080 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
5081 "information");
5082
5083 return modes;
5084}
5085
5086
d8e66e80
JM		 5087static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
5088 int end)
5089{
5090 int c;
5091
5092 for (c = 0; c < mode->num_channels; c++) {
5093 struct hostapd_channel_data *chan = &mode->channels[c];
5094 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
5095 chan->flag |= HOSTAPD_CHAN_HT40;
5096 }
5097}
5098
5099
5100static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
5101 int end)
5102{
5103 int c;
5104
5105 for (c = 0; c < mode->num_channels; c++) {
5106 struct hostapd_channel_data *chan = &mode->channels[c];
5107 if (!(chan->flag & HOSTAPD_CHAN_HT40))
5108 continue;
5109 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
5110 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
5111 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
5112 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
5113 }
5114}
5115
5116
5117static void nl80211_reg_rule_ht40(struct nlattr *tb[],
5118 struct phy_info_arg *results)
5119{
5120 u32 start, end, max_bw;
5121 u16 m;
5122
5123 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5124 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5125 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5126 return;
5127
5128 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5129 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5130 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5131
5132 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
5133 start, end, max_bw);
5134 if (max_bw < 40)
5135 return;
5136
5137 for (m = 0; m < *results->num_modes; m++) {
5138 if (!(results->modes[m].ht_capab &
5139 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5140 continue;
5141 nl80211_set_ht40_mode(&results->modes[m], start, end);
5142 }
5143}
5144
5145
5146static void nl80211_reg_rule_sec(struct nlattr *tb[],
5147 struct phy_info_arg *results)
5148{
5149 u32 start, end, max_bw;
5150 u16 m;
5151
5152 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5153 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5154 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5155 return;
5156
5157 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5158 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5159 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5160
5161 if (max_bw < 20)
5162 return;
5163
5164 for (m = 0; m < *results->num_modes; m++) {
5165 if (!(results->modes[m].ht_capab &
5166 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5167 continue;
5168 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
5169 }
5170}
5171
5172
5173static int nl80211_get_reg(struct nl_msg *msg, void *arg)
5174{
5175 struct phy_info_arg *results = arg;
5176 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5177 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5178 struct nlattr *nl_rule;
5179 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
5180 int rem_rule;
5181 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5182 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5183 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5184 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5185 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5186 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5187 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5188 };
5189
5190 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5191 genlmsg_attrlen(gnlh, 0), NULL);
5192 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
5193 !tb_msg[NL80211_ATTR_REG_RULES]) {
5194 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
5195 "available");
5196 return NL_SKIP;
5197 }
5198
5199 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
5200 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
5201
5202 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5203 {
5204 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5205 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5206 nl80211_reg_rule_ht40(tb_rule, results);
5207 }
5208
5209 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5210 {
5211 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5212 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5213 nl80211_reg_rule_sec(tb_rule, results);
5214 }
5215
5216 return NL_SKIP;
5217}
5218
5219
5220static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
5221 struct phy_info_arg *results)
5222{
5223 struct nl_msg *msg;
5224
5225 msg = nlmsg_alloc();
5226 if (!msg)
5227 return -ENOMEM;
5228
9fb04070 5229 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 5230 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
5231}
5232
5233
282d5590
JM		 5234static struct hostapd_hw_modes *
5235wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
5236{
a2e40bb6
FF		 5237 struct i802_bss *bss = priv;
5238 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 5239 struct nl_msg *msg;
5240 struct phy_info_arg result = {
5241 .num_modes = num_modes,
5242 .modes = NULL,
5243 };
5244
5245 *num_modes = 0;
5246 *flags = 0;
5247
5248 msg = nlmsg_alloc();
5249 if (!msg)
5250 return NULL;
5251
9fb04070 5252 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590
JM		 5253
5254 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5255
d8e66e80
JM		 5256 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
5257 nl80211_set_ht40_flags(drv, &result);
282d5590 5258 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 5259 }
5883168a 5260 msg = NULL;
282d5590 5261 nla_put_failure:
5883168a 5262 nlmsg_free(msg);
282d5590
JM		 5263 return NULL;
5264}
5265
5266
a11241fa
JB		 5267static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
5268 const void *data, size_t len,
5269 int encrypt, int noack)
2c2010ac
JM		 5270{
5271 __u8 rtap_hdr[] = {
5272 0x00, 0x00, /* radiotap version */
5273 0x0e, 0x00, /* radiotap length */
5274 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
5275 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
5276 0x00, /* padding */
5277 0x00, 0x00, /* RX and TX flags to indicate that */
5278 0x00, 0x00, /* this is the injected frame directly */
5279 };
5280 struct iovec iov[2] = {
5281 {
5282 .iov_base = &rtap_hdr,
5283 .iov_len = sizeof(rtap_hdr),
5284 },
5285 {
5286 .iov_base = (void *) data,
5287 .iov_len = len,
5288 }
5289 };
5290 struct msghdr msg = {
5291 .msg_name = NULL,
5292 .msg_namelen = 0,
5293 .msg_iov = iov,
5294 .msg_iovlen = 2,
5295 .msg_control = NULL,
5296 .msg_controllen = 0,
5297 .msg_flags = 0,
5298 };
ebbec8b2 5299 int res;
fab25336 5300 u16 txflags = 0;
2c2010ac
JM		 5301
5302 if (encrypt)
5303 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
5304
866af8b6
JM		 5305 if (drv->monitor_sock < 0) {
5306 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
5307 "for %s", __func__);
5308 return -1;
5309 }
5310
fab25336
HS		 5311 if (noack)
5312 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
5313 *(le16 *) &rtap_hdr[12] = host_to_le16(txflags);
5314
ebbec8b2
JM		 5315 res = sendmsg(drv->monitor_sock, &msg, 0);
5316 if (res < 0) {
5317 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
5318 return -1;
5319 }
5320 return 0;
2c2010ac
JM		 5321}
5322
5323
a11241fa
JB		 5324static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
5325 const void *data, size_t len,
55231068
JM		 5326 int encrypt, int noack,
5327 unsigned int freq, int no_cck,
5328 int offchanok, unsigned int wait_time)
a11241fa
JB		 5329{
5330 struct wpa_driver_nl80211_data *drv = bss->drv;
5331 u64 cookie;
5332
55231068
JM		 5333 if (freq == 0)
5334 freq = bss->freq;
5335
a11241fa
JB		 5336 if (drv->use_monitor)
5337 return wpa_driver_nl80211_send_mntr(drv, data, len,
5338 encrypt, noack);
5339
55231068
JM		 5340 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
5341 &cookie, no_cck, noack, offchanok);
a11241fa
JB		 5342}
5343
5344
55231068
JM		 5345static int wpa_driver_nl80211_send_mlme_freq(struct i802_bss *bss,
5346 const u8 *data,
5347 size_t data_len, int noack,
5348 unsigned int freq, int no_cck,
5349 int offchanok,
5350 unsigned int wait_time)
2c2010ac 5351{
a2e40bb6 5352 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 5353 struct ieee80211_mgmt *mgmt;
7a47d567 5354 int encrypt = 1;
2c2010ac
JM		 5355 u16 fc;
5356
5357 mgmt = (struct ieee80211_mgmt *) data;
5358 fc = le_to_host16(mgmt->frame_control);
5359
b1f625e0 5360 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 5361 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5362 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
5363 /*
5364 * The use of last_mgmt_freq is a bit of a hack,
5365 * but it works due to the single-threaded nature
5366 * of wpa_supplicant.
5367 */
55231068
JM		 5368 if (freq == 0)
5369 freq = drv->last_mgmt_freq;
5370 return nl80211_send_frame_cmd(bss, freq, 0,
88df0ef7
JB		 5371 data, data_len, NULL, 1, noack,
5372 1);
5582a5d1
JB		 5373 }
5374
61cbe2ff 5375 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
55231068
JM		 5376 if (freq == 0)
5377 freq = bss->freq;
b5671498
JM		 5378 return nl80211_send_frame_cmd(bss, freq,
5379 (int) freq == bss->freq ? 0 :
5380 wait_time,
d8d6b32e
DG		 5381 data, data_len,
5382 &drv->send_action_cookie,
55231068 5383 no_cck, noack, offchanok);
86957e62
JM		 5384 }
5385
2c2010ac
JM		 5386 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5387 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
5388 /*
5389 * Only one of the authentication frame types is encrypted.
5390 * In order for static WEP encryption to work properly (i.e.,
5391 * to not encrypt the frame), we need to tell mac80211 about
5392 * the frames that must not be encrypted.
5393 */
5394 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
5395 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 5396 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
5397 encrypt = 0;
2c2010ac
JM		 5398 }
5399
a11241fa 5400 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
55231068
JM		 5401 noack, freq, no_cck, offchanok,
5402 wait_time);
5403}
5404
5405
5406static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
5407 size_t data_len, int noack)
5408{
5409 struct i802_bss *bss = priv;
5410 return wpa_driver_nl80211_send_mlme_freq(bss, data, data_len, noack,
5411 0, 0, 0, 0);
2c2010ac
JM		 5412}
5413
5414
31357268 5415static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
e5693c47
JM		 5416 int slot, int ht_opmode, int ap_isolate,
5417 int *basic_rates)
31357268
JM		 5418{
5419 struct wpa_driver_nl80211_data *drv = bss->drv;
5420 struct nl_msg *msg;
5421
5422 msg = nlmsg_alloc();
5423 if (!msg)
5424 return -ENOMEM;
5425
9fb04070 5426 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 5427
5428 if (cts >= 0)
5429 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5430 if (preamble >= 0)
5431 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5432 if (slot >= 0)
5433 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
5434 if (ht_opmode >= 0)
5435 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
d03e8d11
JM		 5436 if (ap_isolate >= 0)
5437 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
e5693c47
JM		 5438
5439 if (basic_rates) {
5440 u8 rates[NL80211_MAX_SUPP_RATES];
5441 u8 rates_len = 0;
5442 int i;
5443
5444 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
5445 i++)
5446 rates[rates_len++] = basic_rates[i] / 5;
5447
5448 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5449 }
5450
31357268
JM		 5451 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5452
5453 return send_and_recv_msgs(drv, msg, NULL, NULL);
5454 nla_put_failure:
5883168a 5455 nlmsg_free(msg);
31357268
JM		 5456 return -ENOBUFS;
5457}
5458
5459
19c3b566
JM		 5460static int wpa_driver_nl80211_set_ap(void *priv,
5461 struct wpa_driver_ap_params *params)
d2440ba0 5462{
a2e40bb6
FF		 5463 struct i802_bss *bss = priv;
5464 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 5465 struct nl_msg *msg;
5466 u8 cmd = NL80211_CMD_NEW_BEACON;
5467 int ret;
b4fd6fab 5468 int beacon_set;
8b897f5a 5469 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 5470 int num_suites;
5471 u32 suites[10];
5472 u32 ver;
b4fd6fab 5473
b4fd6fab 5474 beacon_set = bss->beacon_set;
d2440ba0
JM		 5475
5476 msg = nlmsg_alloc();
5477 if (!msg)
5478 return -ENOMEM;
5479
5480 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 5481 beacon_set);
5482 if (beacon_set)
d2440ba0
JM		 5483 cmd = NL80211_CMD_SET_BEACON;
5484
9fb04070 5485 nl80211_cmd(drv, msg, 0, cmd);
19c3b566
JM		 5486 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
5487 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b4fd6fab 5488 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
19c3b566
JM		 5489 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
5490 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
ccb941e6
JM		 5491 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5492 params->ssid);
5ed33546
AN		 5493 if (params->proberesp && params->proberesp_len)
5494 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
5495 params->proberesp);
97a7a0b5
JM		 5496 switch (params->hide_ssid) {
5497 case NO_SSID_HIDING:
5498 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5499 NL80211_HIDDEN_SSID_NOT_IN_USE);
5500 break;
5501 case HIDDEN_SSID_ZERO_LEN:
5502 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5503 NL80211_HIDDEN_SSID_ZERO_LEN);
5504 break;
5505 case HIDDEN_SSID_ZERO_CONTENTS:
5506 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5507 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
5508 break;
5509 }
b11d1d64
JM		 5510 if (params->privacy)
5511 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5512 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
5513 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
5514 /* Leave out the attribute */
5515 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
5516 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5517 NL80211_AUTHTYPE_SHARED_KEY);
5518 else
5519 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5520 NL80211_AUTHTYPE_OPEN_SYSTEM);
5521
5522 ver = 0;
5523 if (params->wpa_version & WPA_PROTO_WPA)
5524 ver |= NL80211_WPA_VERSION_1;
5525 if (params->wpa_version & WPA_PROTO_RSN)
5526 ver |= NL80211_WPA_VERSION_2;
5527 if (ver)
5528 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5529
5530 num_suites = 0;
5531 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
5532 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
5533 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
5534 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
5535 if (num_suites) {
5536 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
5537 num_suites * sizeof(u32), suites);
5538 }
5539
9f12614b
JB		 5540 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
5541 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
5542 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
5543
b11d1d64
JM		 5544 num_suites = 0;
5545 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
5546 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
eb7719ff
JM		 5547 if (params->pairwise_ciphers & WPA_CIPHER_GCMP)
5548 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
b11d1d64
JM		 5549 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
5550 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5551 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
5552 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5553 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
5554 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5555 if (num_suites) {
5556 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5557 num_suites * sizeof(u32), suites);
5558 }
5559
5560 switch (params->group_cipher) {
5561 case WPA_CIPHER_CCMP:
5562 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5563 WLAN_CIPHER_SUITE_CCMP);
5564 break;
eb7719ff
JM		 5565 case WPA_CIPHER_GCMP:
5566 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5567 WLAN_CIPHER_SUITE_GCMP);
5568 break;
b11d1d64
JM		 5569 case WPA_CIPHER_TKIP:
5570 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5571 WLAN_CIPHER_SUITE_TKIP);
5572 break;
5573 case WPA_CIPHER_WEP104:
5574 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5575 WLAN_CIPHER_SUITE_WEP104);
5576 break;
5577 case WPA_CIPHER_WEP40:
5578 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5579 WLAN_CIPHER_SUITE_WEP40);
5580 break;
5581 }
d2440ba0 5582
fb91db56
JM		 5583 if (params->beacon_ies) {
5584 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
5585 wpabuf_head(params->beacon_ies));
5586 }
5587 if (params->proberesp_ies) {
5588 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
5589 wpabuf_len(params->proberesp_ies),
5590 wpabuf_head(params->proberesp_ies));
5591 }
5592 if (params->assocresp_ies) {
5593 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
5594 wpabuf_len(params->assocresp_ies),
5595 wpabuf_head(params->assocresp_ies));
5596 }
5597
a0133ee1
VT		 5598 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
5599 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
5600 params->ap_max_inactivity);
5601 }
5602
d2440ba0
JM		 5603 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5604 if (ret) {
5605 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
5606 ret, strerror(-ret));
b4fd6fab 5607 } else {
b4fd6fab 5608 bss->beacon_set = 1;
31357268 5609 nl80211_set_bss(bss, params->cts_protect, params->preamble,
d03e8d11 5610 params->short_slot_time, params->ht_opmode,
e5693c47 5611 params->isolate, params->basic_rates);
b4fd6fab 5612 }
d2440ba0
JM		 5613 return ret;
5614 nla_put_failure:
5883168a 5615 nlmsg_free(msg);
d2440ba0
JM		 5616 return -ENOBUFS;
5617}
5618
5619
e4fb2167 5620static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
f019981a
JM		 5621 int freq, int ht_enabled,
5622 int sec_channel_offset)
1581b38b 5623{
e4fb2167 5624 struct wpa_driver_nl80211_data *drv = bss->drv;
1581b38b 5625 struct nl_msg *msg;
d2440ba0 5626 int ret;
1581b38b 5627
44dc872e
JM		 5628 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
5629 "sec_channel_offset=%d)",
5630 freq, ht_enabled, sec_channel_offset);
1581b38b
JM		 5631 msg = nlmsg_alloc();
5632 if (!msg)
5633 return -1;
5634
9fb04070 5635 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 5636
5637 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 5638 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5639 if (ht_enabled) {
5640 switch (sec_channel_offset) {
5641 case -1:
5642 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5643 NL80211_CHAN_HT40MINUS);
5644 break;
5645 case 1:
5646 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5647 NL80211_CHAN_HT40PLUS);
5648 break;
5649 default:
5650 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5651 NL80211_CHAN_HT20);
5652 break;
5653 }
5654 }
1581b38b 5655
d2440ba0 5656 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 5657 msg = NULL;
e4fb2167
JB		 5658 if (ret == 0) {
5659 bss->freq = freq;
1581b38b 5660 return 0;
e4fb2167 5661 }
f019981a
JM		 5662 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
5663 "%d (%s)", freq, ret, strerror(-ret));
1581b38b 5664nla_put_failure:
5883168a 5665 nlmsg_free(msg);
1581b38b
JM		 5666 return -1;
5667}
5668
0f4e8b4f 5669
95ab6063
AN		 5670static u32 sta_flags_nl80211(int flags)
5671{
5672 u32 f = 0;
5673
5674 if (flags & WPA_STA_AUTHORIZED)
5675 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
5676 if (flags & WPA_STA_WMM)
5677 f |= BIT(NL80211_STA_FLAG_WME);
5678 if (flags & WPA_STA_SHORT_PREAMBLE)
5679 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
5680 if (flags & WPA_STA_MFP)
5681 f |= BIT(NL80211_STA_FLAG_MFP);
45b722f1
AN		 5682 if (flags & WPA_STA_TDLS_PEER)
5683 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
95ab6063
AN		 5684
5685 return f;
5686}
5687
5688
62847751 5689static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 5690 struct hostapd_sta_add_params *params)
5691{
a2e40bb6
FF		 5692 struct i802_bss *bss = priv;
5693 struct wpa_driver_nl80211_data *drv = bss->drv;
774bfa62 5694 struct nl_msg *msg, *wme = NULL;
95ab6063 5695 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 5696 int ret = -ENOBUFS;
5697
45b722f1
AN		 5698 if ((params->flags & WPA_STA_TDLS_PEER) &&
5699 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
5700 return -EOPNOTSUPP;
5701
0f4e8b4f
JM		 5702 msg = nlmsg_alloc();
5703 if (!msg)
5704 return -ENOMEM;
5705
45b722f1
AN		 5706 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
5707 NL80211_CMD_NEW_STATION);
0f4e8b4f 5708
62847751 5709 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f 5710 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
0f4e8b4f
JM		 5711 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
5712 params->supp_rates);
45b722f1
AN		 5713 if (!params->set) {
5714 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
5715 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
5716 params->listen_interval);
5717 }
0f4e8b4f
JM		 5718 if (params->ht_capabilities) {
5719 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 5720 sizeof(*params->ht_capabilities),
5721 params->ht_capabilities);
0f4e8b4f 5722 }
0f4e8b4f 5723
95ab6063
AN		 5724 os_memset(&upd, 0, sizeof(upd));
5725 upd.mask = sta_flags_nl80211(params->flags);
5726 upd.set = upd.mask;
5727 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5728
774bfa62
EP		 5729 if (params->flags & WPA_STA_WMM) {
5730 wme = nlmsg_alloc();
5731 if (!wme)
5732 goto nla_put_failure;
5733
5734 NLA_PUT_U8(wme, NL80211_STA_WME_UAPSD_QUEUES,
5d061637
JY		 5735 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
5736 NLA_PUT_U8(wme, NL80211_STA_WME_MAX_SP,
5737 (params->qosinfo > WMM_QOSINFO_STA_SP_SHIFT) &
5738 WMM_QOSINFO_STA_SP_MASK);
f0494d0f
JM		 5739 if (nla_put_nested(msg, NL80211_ATTR_STA_WME, wme) < 0)
5740 goto nla_put_failure;
774bfa62
EP		 5741 }
5742
0f4e8b4f 5743 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 5744 msg = NULL;
0f4e8b4f 5745 if (ret)
45b722f1
AN		 5746 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
5747 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
5748 strerror(-ret));
0f4e8b4f
JM		 5749 if (ret == -EEXIST)
5750 ret = 0;
5751 nla_put_failure:
5d061637 5752 nlmsg_free(wme);
5883168a 5753 nlmsg_free(msg);
0f4e8b4f
JM		 5754 return ret;
5755}
5756
5757
5758static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
5759{
a2e40bb6
FF		 5760 struct i802_bss *bss = priv;
5761 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 5762 struct nl_msg *msg;
5763 int ret;
5764
5765 msg = nlmsg_alloc();
5766 if (!msg)
5767 return -ENOMEM;
5768
9fb04070 5769 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 5770
5771 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5772 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 5773 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5774
5775 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5776 if (ret == -ENOENT)
5777 return 0;
5778 return ret;
5779 nla_put_failure:
5883168a 5780 nlmsg_free(msg);
0f4e8b4f
JM		 5781 return -ENOBUFS;
5782}
5783
1581b38b 5784
0915d02c
JM		 5785static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
5786 int ifidx)
5787{
5788 struct nl_msg *msg;
5789
c6e8e8e4
JM		 5790 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
5791
2135f224
JM		 5792 /* stop listening for EAPOL on this interface */
5793 del_ifidx(drv, ifidx);
2135f224 5794
0915d02c
JM		 5795 msg = nlmsg_alloc();
5796 if (!msg)
5797 goto nla_put_failure;
5798
9fb04070 5799 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 5800 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
5801
5802 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5803 return;
5883168a 5804 msg = NULL;
0915d02c 5805 nla_put_failure:
5883168a 5806 nlmsg_free(msg);
e748062b 5807 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 5808}
5809
5810
a1922f93
JM		 5811static const char * nl80211_iftype_str(enum nl80211_iftype mode)
5812{
5813 switch (mode) {
5814 case NL80211_IFTYPE_ADHOC:
5815 return "ADHOC";
5816 case NL80211_IFTYPE_STATION:
5817 return "STATION";
5818 case NL80211_IFTYPE_AP:
5819 return "AP";
5820 case NL80211_IFTYPE_MONITOR:
5821 return "MONITOR";
5822 case NL80211_IFTYPE_P2P_CLIENT:
5823 return "P2P_CLIENT";
5824 case NL80211_IFTYPE_P2P_GO:
5825 return "P2P_GO";
5826 default:
5827 return "unknown";
5828 }
5829}
5830
5831
a35187e7
KH		 5832static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
5833 const char *ifname,
5834 enum nl80211_iftype iftype,
fbbfcbac 5835 const u8 *addr, int wds)
0915d02c
JM		 5836{
5837 struct nl_msg *msg, *flags = NULL;
5838 int ifidx;
5839 int ret = -ENOBUFS;
5840
a1922f93
JM		 5841 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
5842 iftype, nl80211_iftype_str(iftype));
5843
0915d02c
JM		 5844 msg = nlmsg_alloc();
5845 if (!msg)
5846 return -1;
5847
9fb04070 5848 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
0915d02c
JM		 5849 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5850 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
5851 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
5852
5853 if (iftype == NL80211_IFTYPE_MONITOR) {
5854 int err;
5855
5856 flags = nlmsg_alloc();
5857 if (!flags)
5858 goto nla_put_failure;
5859
5860 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
5861
5862 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
5863
5864 nlmsg_free(flags);
5865
5866 if (err)
5867 goto nla_put_failure;
fbbfcbac
FF		 5868 } else if (wds) {
5869 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 5870 }
5871
5872 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 5873 msg = NULL;
0915d02c
JM		 5874 if (ret) {
5875 nla_put_failure:
5883168a 5876 nlmsg_free(msg);
a35187e7
KH		 5877 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
5878 ifname, ret, strerror(-ret));
0915d02c
JM		 5879 return ret;
5880 }
5881
5882 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 5883 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
5884 ifname, ifidx);
0915d02c
JM		 5885
5886 if (ifidx <= 0)
5887 return -1;
5888
2135f224
JM		 5889 /* start listening for EAPOL on this interface */
5890 add_ifidx(drv, ifidx);
5891
7bfc47c3 5892 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 5893 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 5894 nl80211_remove_iface(drv, ifidx);
5895 return -1;
2135f224 5896 }
2135f224 5897
0915d02c
JM		 5898 return ifidx;
5899}
22a7c9d7
JM		 5900
5901
a35187e7
KH		 5902static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
5903 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 5904 const u8 *addr, int wds)
a35187e7
KH		 5905{
5906 int ret;
5907
fbbfcbac 5908 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 5909
ffbf1eaa 5910 /* if error occurred and interface exists already */
a35187e7
KH		 5911 if (ret == -ENFILE && if_nametoindex(ifname)) {
5912 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
5913
5914 /* Try to remove the interface that was already there. */
5915 nl80211_remove_iface(drv, if_nametoindex(ifname));
5916
5917 /* Try to create the interface again */
fbbfcbac
FF		 5918 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
5919 wds);
a35187e7
KH		 5920 }
5921
b3af99d2 5922 if (ret >= 0 && is_p2p_interface(iftype))
4e5cb1a3
JM		 5923 nl80211_disable_11b_rates(drv, ret, 1);
5924
a35187e7
KH		 5925 return ret;
5926}
0915d02c 5927
2135f224 5928
0915d02c
JM		 5929static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
5930{
5931 struct ieee80211_hdr *hdr;
f8b1f695
JM		 5932 u16 fc;
5933 union wpa_event_data event;
0915d02c
JM		 5934
5935 hdr = (struct ieee80211_hdr *) buf;
5936 fc = le_to_host16(hdr->frame_control);
5937
f8b1f695
JM		 5938 os_memset(&event, 0, sizeof(event));
5939 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
5940 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
5941 event.tx_status.dst = hdr->addr1;
5942 event.tx_status.data = buf;
5943 event.tx_status.data_len = len;
5944 event.tx_status.ack = ok;
5945 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 5946}
5947
5948
4b9841d3 5949static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 5950 u8 *buf, size_t len)
0915d02c 5951{
9b90955e
JB		 5952 struct ieee80211_hdr *hdr = (void *)buf;
5953 u16 fc;
f8b1f695 5954 union wpa_event_data event;
9b90955e
JB		 5955
5956 if (len < sizeof(*hdr))
5957 return;
5958
5959 fc = le_to_host16(hdr->frame_control);
5960
f8b1f695 5961 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 5962 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
5963 event.rx_from_unknown.addr = hdr->addr2;
5964 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
5965 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 5966 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 5967}
0915d02c 5968
4b9841d3
JM		 5969
5970static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 5971 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 5972{
5973 struct ieee80211_hdr *hdr;
f8b1f695
JM		 5974 u16 fc;
5975 union wpa_event_data event;
0915d02c
JM		 5976
5977 hdr = (struct ieee80211_hdr *) buf;
5978 fc = le_to_host16(hdr->frame_control);
0915d02c 5979
4b9841d3 5980 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 5981 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 5982 os_memset(&event, 0, sizeof(event));
5983 event.rx_mgmt.frame = buf;
5984 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 5985 event.rx_mgmt.datarate = datarate;
5986 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 5987 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 5988 break;
5989 case WLAN_FC_TYPE_CTRL:
5990 /* can only get here with PS-Poll frames */
5991 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 5992 from_unknown_sta(drv, buf, len);
0915d02c
JM		 5993 break;
5994 case WLAN_FC_TYPE_DATA:
0d9fc3d8 5995 from_unknown_sta(drv, buf, len);
0915d02c
JM		 5996 break;
5997 }
5998}
5999
6000
6001static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
6002{
6003 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6004 int len;
6005 unsigned char buf[3000];
6006 struct ieee80211_radiotap_iterator iter;
6007 int ret;
2a8b7416 6008 int datarate = 0, ssi_signal = 0;
4b9841d3 6009 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 6010
6011 len = recv(sock, buf, sizeof(buf), 0);
6012 if (len < 0) {
6013 perror("recv");
6014 return;
6015 }
6016
6017 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
6018 printf("received invalid radiotap frame\n");
6019 return;
6020 }
6021
0915d02c
JM		 6022 while (1) {
6023 ret = ieee80211_radiotap_iterator_next(&iter);
6024 if (ret == -ENOENT)
6025 break;
6026 if (ret) {
6027 printf("received invalid radiotap frame (%d)\n", ret);
6028 return;
6029 }
6030 switch (iter.this_arg_index) {
6031 case IEEE80211_RADIOTAP_FLAGS:
6032 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
6033 len -= 4;
6034 break;
6035 case IEEE80211_RADIOTAP_RX_FLAGS:
6036 rxflags = 1;
6037 break;
6038 case IEEE80211_RADIOTAP_TX_FLAGS:
6039 injected = 1;
6040 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
6041 IEEE80211_RADIOTAP_F_TX_FAIL;
6042 break;
6043 case IEEE80211_RADIOTAP_DATA_RETRIES:
6044 break;
6045 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 6046 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 6047 break;
6048 case IEEE80211_RADIOTAP_RATE:
2a8b7416 6049 datarate = *iter.this_arg * 5;
0915d02c 6050 break;
baf513d6
JB		 6051 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
6052 ssi_signal = (s8) *iter.this_arg;
0915d02c
JM		 6053 break;
6054 }
6055 }
6056
6057 if (rxflags && injected)
6058 return;
6059
6060 if (!injected)
4b9841d3 6061 handle_frame(drv, buf + iter.max_length,
2a8b7416 6062 len - iter.max_length, datarate, ssi_signal);
0915d02c 6063 else
4b9841d3
JM		 6064 handle_tx_callback(drv->ctx, buf + iter.max_length,
6065 len - iter.max_length, !failed);
0915d02c
JM		 6066}
6067
6068
6069/*
6070 * we post-process the filter code later and rewrite
6071 * this to the offset to the last instruction
6072 */
6073#define PASS 0xFF
6074#define FAIL 0xFE
6075
6076static struct sock_filter msock_filter_insns[] = {
6077 /*
6078 * do a little-endian load of the radiotap length field
6079 */
6080 /* load lower byte into A */
6081 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
6082 /* put it into X (== index register) */
6083 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6084 /* load upper byte into A */
6085 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
6086 /* left-shift it by 8 */
6087 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
6088 /* or with X */
6089 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
6090 /* put result into X */
6091 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6092
6093 /*
6094 * Allow management frames through, this also gives us those
6095 * management frames that we sent ourselves with status
6096 */
6097 /* load the lower byte of the IEEE 802.11 frame control field */
6098 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6099 /* mask off frame type and version */
6100 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
6101 /* accept frame if it's both 0, fall through otherwise */
6102 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
6103
6104 /*
6105 * TODO: add a bit to radiotap RX flags that indicates
6106 * that the sending station is not associated, then
6107 * add a filter here that filters on our DA and that flag
6108 * to allow us to deauth frames to that bad station.
6109 *
65ae1afd 6110 * For now allow all To DS data frames through.
0915d02c 6111 */
65ae1afd
HS		 6112 /* load the IEEE 802.11 frame control field */
6113 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
6114 /* mask off frame type, version and DS status */
6115 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
6116 /* accept frame if version 0, type 2 and To DS, fall through otherwise
6117 */
6118 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 6119
6120#if 0
6121 /*
fbbfcbac 6122 * drop non-data frames
0915d02c
JM		 6123 */
6124 /* load the lower byte of the frame control field */
6125 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6126 /* mask off QoS bit */
6127 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
6128 /* drop non-data frames */
6129 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 6130#endif
0915d02c 6131 /* load the upper byte of the frame control field */
fbbfcbac 6132 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 6133 /* mask off toDS/fromDS */
6134 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 6135 /* accept WDS frames */
6136 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 6137
6138 /*
6139 * add header length to index
6140 */
6141 /* load the lower byte of the frame control field */
6142 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6143 /* mask off QoS bit */
6144 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
6145 /* right shift it by 6 to give 0 or 2 */
6146 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
6147 /* add data frame header length */
6148 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
6149 /* add index, was start of 802.11 header */
6150 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
6151 /* move to index, now start of LL header */
6152 BPF_STMT(BPF_MISC | BPF_TAX, 0),
6153
6154 /*
6155 * Accept empty data frames, we use those for
6156 * polling activity.
6157 */
6158 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
6159 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
6160
6161 /*
6162 * Accept EAPOL frames
6163 */
6164 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
6165 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
6166 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
6167 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
6168
6169 /* keep these last two statements or change the code below */
6170 /* return 0 == "DROP" */
6171 BPF_STMT(BPF_RET | BPF_K, 0),
6172 /* return ~0 == "keep all" */
6173 BPF_STMT(BPF_RET | BPF_K, ~0),
6174};
6175
6176static struct sock_fprog msock_filter = {
6177 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
6178 .filter = msock_filter_insns,
6179};
6180
6181
6182static int add_monitor_filter(int s)
6183{
6184 int idx;
6185
6186 /* rewrite all PASS/FAIL jump offsets */
6187 for (idx = 0; idx < msock_filter.len; idx++) {
6188 struct sock_filter *insn = &msock_filter_insns[idx];
6189
6190 if (BPF_CLASS(insn->code) == BPF_JMP) {
6191 if (insn->code == (BPF_JMP|BPF_JA)) {
6192 if (insn->k == PASS)
6193 insn->k = msock_filter.len - idx - 2;
6194 else if (insn->k == FAIL)
6195 insn->k = msock_filter.len - idx - 3;
6196 }
6197
6198 if (insn->jt == PASS)
6199 insn->jt = msock_filter.len - idx - 2;
6200 else if (insn->jt == FAIL)
6201 insn->jt = msock_filter.len - idx - 3;
6202
6203 if (insn->jf == PASS)
6204 insn->jf = msock_filter.len - idx - 2;
6205 else if (insn->jf == FAIL)
6206 insn->jf = msock_filter.len - idx - 3;
6207 }
6208 }
6209
6210 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
6211 &msock_filter, sizeof(msock_filter))) {
6212 perror("SO_ATTACH_FILTER");
6213 return -1;
6214 }
6215
6216 return 0;
6217}
6218
6219
460456f8
JM		 6220static void nl80211_remove_monitor_interface(
6221 struct wpa_driver_nl80211_data *drv)
6222{
3fd1cefb
JB		 6223 drv->monitor_refcount--;
6224 if (drv->monitor_refcount > 0)
6225 return;
6226
460456f8
JM		 6227 if (drv->monitor_ifidx >= 0) {
6228 nl80211_remove_iface(drv, drv->monitor_ifidx);
6229 drv->monitor_ifidx = -1;
6230 }
504e905c
JM		 6231 if (drv->monitor_sock >= 0) {
6232 eloop_unregister_read_sock(drv->monitor_sock);
6233 close(drv->monitor_sock);
6234 drv->monitor_sock = -1;
6235 }
460456f8
JM		 6236}
6237
6238
0915d02c
JM		 6239static int
6240nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
6241{
6242 char buf[IFNAMSIZ];
6243 struct sockaddr_ll ll;
6244 int optval;
6245 socklen_t optlen;
0915d02c 6246
3fd1cefb
JB		 6247 if (drv->monitor_ifidx >= 0) {
6248 drv->monitor_refcount++;
6249 return 0;
6250 }
6251
6758b167
JJ		 6252 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
6253 /*
6254 * P2P interface name is of the format p2p-%s-%d. For monitor
6255 * interface name corresponding to P2P GO, replace "p2p-" with
6256 * "mon-" to retain the same interface name length and to
6257 * indicate that it is a monitor interface.
6258 */
6259 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
6260 } else {
6261 /* Non-P2P interface with AP functionality. */
6262 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
6263 }
6264
0915d02c
JM		 6265 buf[IFNAMSIZ - 1] = '\0';
6266
6267 drv->monitor_ifidx =
fbbfcbac
FF		 6268 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
6269 0);
0915d02c 6270
866af8b6 6271 if (drv->monitor_ifidx == -EOPNOTSUPP) {
61cbe2ff
JB		 6272 /*
6273 * This is backward compatibility for a few versions of
6274 * the kernel only that didn't advertise the right
6275 * attributes for the only driver that then supported
6276 * AP mode w/o monitor -- ath6kl.
6277 */
866af8b6
JM		 6278 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
6279 "monitor interface type - try to run without it");
61cbe2ff 6280 drv->device_ap_sme = 1;
866af8b6
JM		 6281 }
6282
0915d02c
JM		 6283 if (drv->monitor_ifidx < 0)
6284 return -1;
6285
c81eff1a 6286 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 6287 goto error;
0915d02c
JM		 6288
6289 memset(&ll, 0, sizeof(ll));
6290 ll.sll_family = AF_PACKET;
6291 ll.sll_ifindex = drv->monitor_ifidx;
6292 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
6293 if (drv->monitor_sock < 0) {
6294 perror("socket[PF_PACKET,SOCK_RAW]");
6295 goto error;
6296 }
6297
6298 if (add_monitor_filter(drv->monitor_sock)) {
6299 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
6300 "interface; do filtering in user space");
6301 /* This works, but will cost in performance. */
6302 }
6303
2135f224 6304 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 6305 perror("monitor socket bind");
6306 goto error;
6307 }
6308
6309 optlen = sizeof(optval);
6310 optval = 20;
6311 if (setsockopt
6312 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
6313 perror("Failed to set socket priority");
6314 goto error;
6315 }
6316
6317 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
6318 drv, NULL)) {
6319 printf("Could not register monitor read socket\n");
6320 goto error;
6321 }
6322
6323 return 0;
6324 error:
460456f8 6325 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 6326 return -1;
6327}
6328
db149ac9 6329
3fd1cefb
JB		 6330static int nl80211_setup_ap(struct i802_bss *bss)
6331{
6332 struct wpa_driver_nl80211_data *drv = bss->drv;
6333
36488c05
JM		 6334 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d "
6335 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor);
6336
a11241fa
JB		 6337 /*
6338 * Disable Probe Request reporting unless we need it in this way for
6339 * devices that include the AP SME, in the other case (unless using
6340 * monitor iface) we'll get it through the nl_mgmt socket instead.
6341 */
6342 if (!drv->device_ap_sme)
6343 wpa_driver_nl80211_probe_req_report(bss, 0);
6344
6345 if (!drv->device_ap_sme && !drv->use_monitor)
6346 if (nl80211_mgmt_subscribe_ap(bss))
6347 return -1;
6348
a6cc0602
JM		 6349 if (drv->device_ap_sme && !drv->use_monitor)
6350 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
6351 return -1;
6352
a11241fa 6353 if (!drv->device_ap_sme && drv->use_monitor &&
3fd1cefb
JB		 6354 nl80211_create_monitor_interface(drv) &&
6355 !drv->device_ap_sme)
6356 return -1;
6357
6358 if (drv->device_ap_sme &&
6359 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
6360 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
6361 "Probe Request frame reporting in AP mode");
6362 /* Try to survive without this */
6363 }
6364
6365 return 0;
6366}
6367
6368
6369static void nl80211_teardown_ap(struct i802_bss *bss)
6370{
6371 struct wpa_driver_nl80211_data *drv = bss->drv;
6372
a6cc0602 6373 if (drv->device_ap_sme) {
3fd1cefb 6374 wpa_driver_nl80211_probe_req_report(bss, 0);
a6cc0602
JM		 6375 if (!drv->use_monitor)
6376 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
6377 } else if (drv->use_monitor)
3fd1cefb 6378 nl80211_remove_monitor_interface(drv);
a11241fa 6379 else
36488c05 6380 nl80211_mgmt_unsubscribe(bss, "AP teardown");
a11241fa 6381
3fd1cefb
JB		 6382 bss->beacon_set = 0;
6383}
6384
6385
f10bfc9a
JM		 6386static int nl80211_send_eapol_data(struct i802_bss *bss,
6387 const u8 *addr, const u8 *data,
d12dab4c 6388 size_t data_len)
f10bfc9a 6389{
d12dab4c
JB		 6390 struct sockaddr_ll ll;
6391 int ret;
6392
6393 if (bss->drv->eapol_tx_sock < 0) {
6394 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
f10bfc9a
JM		 6395 return -1;
6396 }
6397
d12dab4c
JB		 6398 os_memset(&ll, 0, sizeof(ll));
6399 ll.sll_family = AF_PACKET;
6400 ll.sll_ifindex = bss->ifindex;
6401 ll.sll_protocol = htons(ETH_P_PAE);
6402 ll.sll_halen = ETH_ALEN;
6403 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
6404 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
6405 (struct sockaddr *) &ll, sizeof(ll));
6406 if (ret < 0)
6407 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
6408 strerror(errno));
6409
6410 return ret;
f10bfc9a 6411}
5fb1a232 6412
f10bfc9a 6413
db149ac9
JM		 6414static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
6415
6416static int wpa_driver_nl80211_hapd_send_eapol(
6417 void *priv, const u8 *addr, const u8 *data,
4378fc14 6418 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 6419{
a2e40bb6
FF		 6420 struct i802_bss *bss = priv;
6421 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 6422 struct ieee80211_hdr *hdr;
6423 size_t len;
6424 u8 *pos;
6425 int res;
4378fc14 6426 int qos = flags & WPA_STA_WMM;
db149ac9 6427
a11241fa 6428 if (drv->device_ap_sme || !drv->use_monitor)
d12dab4c 6429 return nl80211_send_eapol_data(bss, addr, data, data_len);
f10bfc9a 6430
db149ac9
JM		 6431 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
6432 data_len;
6433 hdr = os_zalloc(len);
6434 if (hdr == NULL) {
6435 printf("malloc() failed for i802_send_data(len=%lu)\n",
6436 (unsigned long) len);
6437 return -1;
6438 }
6439
6440 hdr->frame_control =
6441 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
6442 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
6443 if (encrypt)
6444 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 6445 if (qos) {
6446 hdr->frame_control |=
6447 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
6448 }
db149ac9
JM		 6449
6450 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
6451 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
6452 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
6453 pos = (u8 *) (hdr + 1);
6454
db149ac9 6455 if (qos) {
92d521d8
FF		 6456 /* Set highest priority in QoS header */
6457 pos[0] = 7;
db149ac9
JM		 6458 pos[1] = 0;
6459 pos += 2;
6460 }
db149ac9
JM		 6461
6462 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
6463 pos += sizeof(rfc1042_header);
6464 WPA_PUT_BE16(pos, ETH_P_PAE);
6465 pos += 2;
6466 memcpy(pos, data, data_len);
6467
55231068
JM		 6468 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
6469 0, 0, 0, 0);
db149ac9
JM		 6470 if (res < 0) {
6471 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
6472 "failed: %d (%s)",
6473 (unsigned long) len, errno, strerror(errno));
6474 }
7bf12757 6475 os_free(hdr);
db149ac9
JM		 6476
6477 return res;
6478}
6479
a8d6ffa4 6480
3234cba4
JM		 6481static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
6482 int total_flags,
4c32757d 6483 int flags_or, int flags_and)
a8d6ffa4 6484{
a2e40bb6
FF		 6485 struct i802_bss *bss = priv;
6486 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 6487 struct nl_msg *msg, *flags = NULL;
7e76ee9c 6488 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 6489
6490 msg = nlmsg_alloc();
6491 if (!msg)
6492 return -ENOMEM;
6493
6494 flags = nlmsg_alloc();
6495 if (!flags) {
6496 nlmsg_free(msg);
6497 return -ENOMEM;
6498 }
6499
9fb04070 6500 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 6501
6502 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 6503 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 6504 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6505
7e76ee9c
JM		 6506 /*
6507 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
6508 * can be removed eventually.
6509 */
0de39516 6510 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 6511 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
6512
0de39516 6513 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 6514 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
6515
0de39516 6516 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 6517 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
6518
0de39516 6519 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 6520 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
6521
45b722f1
AN		 6522 if (total_flags & WPA_STA_TDLS_PEER)
6523 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER);
6524
a8d6ffa4
JM		 6525 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
6526 goto nla_put_failure;
6527
7e76ee9c
JM		 6528 os_memset(&upd, 0, sizeof(upd));
6529 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
6530 upd.set = sta_flags_nl80211(flags_or);
6531 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6532
a8d6ffa4
JM		 6533 nlmsg_free(flags);
6534
6535 return send_and_recv_msgs(drv, msg, NULL, NULL);
6536 nla_put_failure:
5883168a 6537 nlmsg_free(msg);
a8d6ffa4
JM		 6538 nlmsg_free(flags);
6539 return -ENOBUFS;
6540}
6541
0915d02c 6542
1581b38b
JM		 6543static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
6544 struct wpa_driver_associate_params *params)
6545{
b1f625e0
EP		 6546 enum nl80211_iftype nlmode;
6547
6548 if (params->p2p) {
046b26a2
JM		 6549 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
6550 "group (GO)");
b1f625e0
EP		 6551 nlmode = NL80211_IFTYPE_P2P_GO;
6552 } else
6553 nlmode = NL80211_IFTYPE_AP;
6554
6555 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
e4fb2167 6556 wpa_driver_nl80211_set_freq(&drv->first_bss, params->freq, 0, 0)) {
460456f8 6557 nl80211_remove_monitor_interface(drv);
1581b38b 6558 return -1;
0915d02c 6559 }
1581b38b 6560
1581b38b
JM		 6561 return 0;
6562}
1581b38b
JM		 6563
6564
5cc4d64b
JM		 6565static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
6566{
6567 struct nl_msg *msg;
6568 int ret = -1;
6569
6570 msg = nlmsg_alloc();
6571 if (!msg)
6572 return -1;
6573
9fb04070 6574 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 6575 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6576 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6577 msg = NULL;
6578 if (ret) {
6579 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
6580 "(%s)", ret, strerror(-ret));
6581 goto nla_put_failure;
6582 }
6583
6584 ret = 0;
6585 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
6586
6587nla_put_failure:
6588 nlmsg_free(msg);
6589 return ret;
6590}
6591
6592
6593static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
6594 struct wpa_driver_associate_params *params)
6595{
6596 struct nl_msg *msg;
6597 int ret = -1;
6598 int count = 0;
6599
6600 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
6601
b1f625e0
EP		 6602 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
6603 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 6604 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
6605 "IBSS mode");
6606 return -1;
6607 }
6608
6609retry:
6610 msg = nlmsg_alloc();
6611 if (!msg)
6612 return -1;
6613
9fb04070 6614 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 6615 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6616
6617 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
6618 goto nla_put_failure;
6619
6620 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6621 params->ssid, params->ssid_len);
6622 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6623 params->ssid);
6624 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6625 drv->ssid_len = params->ssid_len;
6626
6627 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6628 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6629
6630 ret = nl80211_set_conn_keys(params, msg);
6631 if (ret)
6632 goto nla_put_failure;
6633
913e3cf7
NC		 6634 if (params->bssid && params->fixed_bssid) {
6635 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
6636 MAC2STR(params->bssid));
6637 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6638 }
6639
e640888c
AQ		 6640 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6641 params->key_mgmt_suite == KEY_MGMT_PSK ||
6642 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
6643 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
6644 wpa_printf(MSG_DEBUG, " * control port");
6645 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
6646 }
6647
a95795ad
JM		 6648 if (params->wpa_ie) {
6649 wpa_hexdump(MSG_DEBUG,
6650 " * Extra IEs for Beacon/Probe Response frames",
6651 params->wpa_ie, params->wpa_ie_len);
6652 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6653 params->wpa_ie);
6654 }
6655
5cc4d64b
JM		 6656 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6657 msg = NULL;
6658 if (ret) {
6659 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
6660 ret, strerror(-ret));
6661 count++;
6662 if (ret == -EALREADY && count == 1) {
6663 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
6664 "forced leave");
6665 nl80211_leave_ibss(drv);
6666 nlmsg_free(msg);
6667 goto retry;
6668 }
6669
6670 goto nla_put_failure;
6671 }
6672 ret = 0;
6673 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
6674
6675nla_put_failure:
6676 nlmsg_free(msg);
6677 return ret;
6678}
6679
6680
a8c5b43a 6681static int wpa_driver_nl80211_try_connect(
cfaab580
ZY		 6682 struct wpa_driver_nl80211_data *drv,
6683 struct wpa_driver_associate_params *params)
6684{
6685 struct nl_msg *msg;
6686 enum nl80211_auth_type type;
6687 int ret = 0;
3f360238 6688 int algs;
cfaab580
ZY		 6689
6690 msg = nlmsg_alloc();
6691 if (!msg)
6692 return -1;
6693
6694 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 6695 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 6696
6697 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6698 if (params->bssid) {
6699 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6700 MAC2STR(params->bssid));
6701 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6702 }
6703 if (params->freq) {
6704 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6706 }
1f6c0ab8
BS		 6707 if (params->bg_scan_period >= 0) {
6708 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
6709 params->bg_scan_period);
6710 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
6711 params->bg_scan_period);
6712 }
cfaab580
ZY		 6713 if (params->ssid) {
6714 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6715 params->ssid, params->ssid_len);
6716 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6717 params->ssid);
6718 if (params->ssid_len > sizeof(drv->ssid))
6719 goto nla_put_failure;
6720 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6721 drv->ssid_len = params->ssid_len;
6722 }
6723 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6724 if (params->wpa_ie)
6725 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6726 params->wpa_ie);
6727
3f360238
JM		 6728 algs = 0;
6729 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
6730 algs++;
6731 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
6732 algs++;
6733 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
6734 algs++;
6735 if (algs > 1) {
6736 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
6737 "selection");
6738 goto skip_auth_type;
6739 }
6740
abd9fafa 6741 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 6742 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 6743 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 6744 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 6745 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 6746 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 6747 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 6748 type = NL80211_AUTHTYPE_FT;
6749 else
6750 goto nla_put_failure;
6751
6752 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
6753 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
6754
3f360238 6755skip_auth_type:
64fa840a
JM		 6756 if (params->wpa_proto) {
6757 enum nl80211_wpa_versions ver = 0;
cfaab580 6758
64fa840a
JM		 6759 if (params->wpa_proto & WPA_PROTO_WPA)
6760 ver |= NL80211_WPA_VERSION_1;
6761 if (params->wpa_proto & WPA_PROTO_RSN)
6762 ver |= NL80211_WPA_VERSION_2;
cfaab580 6763
64fa840a 6764 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 6765 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6766 }
6767
6768 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 6769 int cipher;
cfaab580
ZY		 6770
6771 switch (params->pairwise_suite) {
369c8d7b
JM		 6772 case CIPHER_SMS4:
6773 cipher = WLAN_CIPHER_SUITE_SMS4;
6774 break;
cfaab580
ZY		 6775 case CIPHER_WEP40:
6776 cipher = WLAN_CIPHER_SUITE_WEP40;
6777 break;
6778 case CIPHER_WEP104:
6779 cipher = WLAN_CIPHER_SUITE_WEP104;
6780 break;
6781 case CIPHER_CCMP:
6782 cipher = WLAN_CIPHER_SUITE_CCMP;
6783 break;
eb7719ff
JM		 6784 case CIPHER_GCMP:
6785 cipher = WLAN_CIPHER_SUITE_GCMP;
6786 break;
cfaab580
ZY		 6787 case CIPHER_TKIP:
6788 default:
6789 cipher = WLAN_CIPHER_SUITE_TKIP;
6790 break;
6791 }
6792 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6793 }
6794
6795 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 6796 int cipher;
cfaab580
ZY		 6797
6798 switch (params->group_suite) {
369c8d7b
JM		 6799 case CIPHER_SMS4:
6800 cipher = WLAN_CIPHER_SUITE_SMS4;
6801 break;
cfaab580
ZY		 6802 case CIPHER_WEP40:
6803 cipher = WLAN_CIPHER_SUITE_WEP40;
6804 break;
6805 case CIPHER_WEP104:
6806 cipher = WLAN_CIPHER_SUITE_WEP104;
6807 break;
6808 case CIPHER_CCMP:
6809 cipher = WLAN_CIPHER_SUITE_CCMP;
6810 break;
eb7719ff
JM		 6811 case CIPHER_GCMP:
6812 cipher = WLAN_CIPHER_SUITE_GCMP;
6813 break;
cfaab580
ZY		 6814 case CIPHER_TKIP:
6815 default:
6816 cipher = WLAN_CIPHER_SUITE_TKIP;
6817 break;
6818 }
6819 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6820 }
6821
6822 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
369c8d7b
JM		 6823 params->key_mgmt_suite == KEY_MGMT_PSK ||
6824 params->key_mgmt_suite == KEY_MGMT_CCKM) {
cfaab580
ZY		 6825 int mgmt = WLAN_AKM_SUITE_PSK;
6826
6827 switch (params->key_mgmt_suite) {
369c8d7b
JM		 6828 case KEY_MGMT_CCKM:
6829 mgmt = WLAN_AKM_SUITE_CCKM;
6830 break;
cfaab580
ZY		 6831 case KEY_MGMT_802_1X:
6832 mgmt = WLAN_AKM_SUITE_8021X;
6833 break;
6834 case KEY_MGMT_PSK:
6835 default:
6836 mgmt = WLAN_AKM_SUITE_PSK;
6837 break;
6838 }
6839 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
6840 }
6841
80e8a5ee
BG		 6842 if (params->disable_ht)
6843 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
6844
6845 if (params->htcaps && params->htcaps_mask) {
6846 int sz = sizeof(struct ieee80211_ht_capabilities);
6847 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
6848 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
6849 params->htcaps_mask);
6850 }
6851
cfaab580
ZY		 6852 ret = nl80211_set_conn_keys(params, msg);
6853 if (ret)
6854 goto nla_put_failure;
6855
6856 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6857 msg = NULL;
6858 if (ret) {
6859 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
6860 "(%s)", ret, strerror(-ret));
6861 goto nla_put_failure;
6862 }
6863 ret = 0;
6864 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
6865
6866nla_put_failure:
6867 nlmsg_free(msg);
6868 return ret;
6869
6870}
6871
6872
a8c5b43a
CW		 6873static int wpa_driver_nl80211_connect(
6874 struct wpa_driver_nl80211_data *drv,
6875 struct wpa_driver_associate_params *params)
6876{
6877 int ret = wpa_driver_nl80211_try_connect(drv, params);
6878 if (ret == -EALREADY) {
6879 /*
6880 * cfg80211 does not currently accept new connections if
6881 * we are already connected. As a workaround, force
6882 * disconnection and try again.
6883 */
6884 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
6885 "disconnecting before reassociation "
6886 "attempt");
6887 if (wpa_driver_nl80211_disconnect(
6888 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
6889 return -1;
6890 /* Ignore the next local disconnect message. */
6891 drv->ignore_next_local_disconnect = 1;
6892 ret = wpa_driver_nl80211_try_connect(drv, params);
6893 }
6894 return ret;
6895}
6896
6897
c2a04078
JM		 6898static int wpa_driver_nl80211_associate(
6899 void *priv, struct wpa_driver_associate_params *params)
6900{
a2e40bb6
FF		 6901 struct i802_bss *bss = priv;
6902 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 6903 int ret = -1;
6904 struct nl_msg *msg;
6905
5cc4d64b 6906 if (params->mode == IEEE80211_MODE_AP)
1581b38b 6907 return wpa_driver_nl80211_ap(drv, params);
1581b38b 6908
5cc4d64b
JM		 6909 if (params->mode == IEEE80211_MODE_IBSS)
6910 return wpa_driver_nl80211_ibss(drv, params);
6911
4a867032 6912 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 6913 enum nl80211_iftype nlmode = params->p2p ?
6914 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
6915
6916 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 6917 return -1;
cfaab580 6918 return wpa_driver_nl80211_connect(drv, params);
4a867032 6919 }
cfaab580 6920
c2a04078
JM		 6921 drv->associated = 0;
6922
6923 msg = nlmsg_alloc();
6924 if (!msg)
6925 return -1;
6926
6927 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
6928 drv->ifindex);
9fb04070 6929 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 6930
6931 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6932 if (params->bssid) {
6933 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6934 MAC2STR(params->bssid));
6935 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6936 }
6937 if (params->freq) {
6938 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6939 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 6940 drv->assoc_freq = params->freq;
6941 } else
6942 drv->assoc_freq = 0;
1f6c0ab8
BS		 6943 if (params->bg_scan_period >= 0) {
6944 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
6945 params->bg_scan_period);
6946 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
6947 params->bg_scan_period);
6948 }
c2a04078
JM		 6949 if (params->ssid) {
6950 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6951 params->ssid, params->ssid_len);
6952 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6953 params->ssid);
fd05d64e
JM		 6954 if (params->ssid_len > sizeof(drv->ssid))
6955 goto nla_put_failure;
6956 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6957 drv->ssid_len = params->ssid_len;
c2a04078
JM		 6958 }
6959 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6960 if (params->wpa_ie)
6961 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6962 params->wpa_ie);
6963
aca01605
JM		 6964 if (params->pairwise_suite != CIPHER_NONE) {
6965 int cipher;
6966
6967 switch (params->pairwise_suite) {
6968 case CIPHER_WEP40:
6969 cipher = WLAN_CIPHER_SUITE_WEP40;
6970 break;
6971 case CIPHER_WEP104:
6972 cipher = WLAN_CIPHER_SUITE_WEP104;
6973 break;
6974 case CIPHER_CCMP:
6975 cipher = WLAN_CIPHER_SUITE_CCMP;
6976 break;
eb7719ff
JM		 6977 case CIPHER_GCMP:
6978 cipher = WLAN_CIPHER_SUITE_GCMP;
6979 break;
aca01605
JM		 6980 case CIPHER_TKIP:
6981 default:
6982 cipher = WLAN_CIPHER_SUITE_TKIP;
6983 break;
6984 }
79c3124c 6985 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 6986 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6987 }
6988
6989 if (params->group_suite != CIPHER_NONE) {
6990 int cipher;
6991
6992 switch (params->group_suite) {
6993 case CIPHER_WEP40:
6994 cipher = WLAN_CIPHER_SUITE_WEP40;
6995 break;
6996 case CIPHER_WEP104:
6997 cipher = WLAN_CIPHER_SUITE_WEP104;
6998 break;
6999 case CIPHER_CCMP:
7000 cipher = WLAN_CIPHER_SUITE_CCMP;
7001 break;
eb7719ff
JM		 7002 case CIPHER_GCMP:
7003 cipher = WLAN_CIPHER_SUITE_GCMP;
7004 break;
aca01605
JM		 7005 case CIPHER_TKIP:
7006 default:
7007 cipher = WLAN_CIPHER_SUITE_TKIP;
7008 break;
7009 }
79c3124c 7010 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 7011 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
7012 }
7013
e572fa33
JM		 7014#ifdef CONFIG_IEEE80211W
7015 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
7016 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
7017#endif /* CONFIG_IEEE80211W */
7018
01652550
JM		 7019 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
7020
62fa124c
JM		 7021 if (params->prev_bssid) {
7022 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
7023 MAC2STR(params->prev_bssid));
7024 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
7025 params->prev_bssid);
7026 }
7027
80e8a5ee
BG		 7028 if (params->disable_ht)
7029 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
7030
7031 if (params->htcaps && params->htcaps_mask) {
7032 int sz = sizeof(struct ieee80211_ht_capabilities);
7033 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
7034 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
7035 params->htcaps_mask);
7036 }
7037
046b26a2
JM		 7038 if (params->p2p)
7039 wpa_printf(MSG_DEBUG, " * P2P group");
7040
c2a04078
JM		 7041 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7042 msg = NULL;
7043 if (ret) {
3b7ea880
BG		 7044 wpa_dbg(drv->ctx, MSG_DEBUG,
7045 "nl80211: MLME command failed (assoc): ret=%d (%s)",
7046 ret, strerror(-ret));
8856462d 7047 nl80211_dump_scan(drv);
c2a04078
JM		 7048 goto nla_put_failure;
7049 }
7050 ret = 0;
7051 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
7052 "successfully");
7053
7054nla_put_failure:
7055 nlmsg_free(msg);
7056 return ret;
7057}
3f5285e8
JM		 7058
7059
ad1e68e6 7060static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 7061 int ifindex, enum nl80211_iftype mode)
3f5285e8 7062{
3f5285e8 7063 struct nl_msg *msg;
ad1e68e6
JM		 7064 int ret = -ENOBUFS;
7065
a1922f93
JM		 7066 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
7067 ifindex, mode, nl80211_iftype_str(mode));
7068
ad1e68e6
JM		 7069 msg = nlmsg_alloc();
7070 if (!msg)
7071 return -ENOMEM;
7072
9fb04070 7073 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
ad1e68e6
JM		 7074 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
7075 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
7076
7077 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7078 msg = NULL;
ad1e68e6
JM		 7079 if (!ret)
7080 return 0;
7081nla_put_failure:
5883168a 7082 nlmsg_free(msg);
ad1e68e6
JM		 7083 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
7084 " %d (%s)", ifindex, mode, ret, strerror(-ret));
7085 return ret;
7086}
7087
7088
b1f625e0
EP		 7089static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
7090 enum nl80211_iftype nlmode)
ad1e68e6 7091{
a2e40bb6 7092 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 7093 int ret = -1;
26af9dca 7094 int i;
86957e62 7095 int was_ap = is_ap_interface(drv->nlmode);
671a5039 7096 int res;
1581b38b 7097
671a5039
JM		 7098 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
7099 if (res == 0) {
ad1e68e6 7100 drv->nlmode = nlmode;
460456f8
JM		 7101 ret = 0;
7102 goto done;
ad1e68e6 7103 }
3f5285e8 7104
671a5039
JM		 7105 if (res == -ENODEV)
7106 return -1;
7107
460456f8 7108 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 7109 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
7110 "requested mode - ignore error");
460456f8
JM		 7111 ret = 0;
7112 goto done; /* Already in the requested mode */
7113 }
3f5285e8 7114
3f5285e8
JM		 7115 /* mac80211 doesn't allow mode changes while the device is up, so
7116 * take the device down, try to set the mode again, and bring the
7117 * device back up.
7118 */
26af9dca
JM		 7119 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
7120 "interface down");
7121 for (i = 0; i < 10; i++) {
c81eff1a
BG		 7122 res = linux_set_iface_flags(drv->global->ioctl_sock,
7123 bss->ifname, 0);
6e8183d7
JM		 7124 if (res == -EACCES || res == -ENODEV)
7125 break;
7126 if (res == 0) {
26af9dca
JM		 7127 /* Try to set the mode again while the interface is
7128 * down */
7129 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 7130 if (ret == -EACCES)
7131 break;
c81eff1a 7132 res = linux_set_iface_flags(drv->global->ioctl_sock,
6e8183d7
JM		 7133 bss->ifname, 1);
7134 if (res && !ret)
26af9dca 7135 ret = -1;
6e8183d7 7136 else if (ret != -EBUSY)
26af9dca
JM		 7137 break;
7138 } else
7139 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
7140 "interface down");
7141 os_sleep(0, 100000);
3f5285e8
JM		 7142 }
7143
c6e8e8e4
JM		 7144 if (!ret) {
7145 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
7146 "interface is down");
ad1e68e6 7147 drv->nlmode = nlmode;
7d9c3698 7148 drv->ignore_if_down_event = 1;
c6e8e8e4 7149 }
ad1e68e6 7150
460456f8 7151done:
3fd1cefb
JB		 7152 if (ret) {
7153 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
7154 "from %d failed", nlmode, drv->nlmode);
7155 return ret;
7156 }
7157
edb9bfba
RM		 7158 if (is_p2p_interface(nlmode))
7159 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
1d0c6fb1
JM		 7160 else if (drv->disabled_11b_rates)
7161 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
edb9bfba 7162
3fd1cefb 7163 if (is_ap_interface(nlmode)) {
36488c05 7164 nl80211_mgmt_unsubscribe(bss, "start AP");
460456f8 7165 /* Setup additional AP mode functionality if needed */
3fd1cefb 7166 if (nl80211_setup_ap(bss))
460456f8 7167 return -1;
3fd1cefb 7168 } else if (was_ap) {
460456f8 7169 /* Remove additional AP mode functionality */
3fd1cefb 7170 nl80211_teardown_ap(bss);
a11241fa 7171 } else {
36488c05 7172 nl80211_mgmt_unsubscribe(bss, "mode change");
460456f8 7173 }
460456f8 7174
873d0fcf 7175 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
a11241fa
JB		 7176 nl80211_mgmt_subscribe_non_ap(bss) < 0)
7177 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
7178 "frame processing - ignore for now");
08359050 7179
3fd1cefb 7180 return 0;
3f5285e8
JM		 7181}
7182
7183
3f5285e8
JM		 7184static int wpa_driver_nl80211_get_capa(void *priv,
7185 struct wpa_driver_capa *capa)
7186{
a2e40bb6
FF		 7187 struct i802_bss *bss = priv;
7188 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 7189 if (!drv->has_capability)
7190 return -1;
7191 os_memcpy(capa, &drv->capa, sizeof(*capa));
7192 return 0;
7193}
7194
7195
7196static int wpa_driver_nl80211_set_operstate(void *priv, int state)
7197{
a2e40bb6
FF		 7198 struct i802_bss *bss = priv;
7199 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 7200
7201 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
7202 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
7203 drv->operstate = state;
36d84860 7204 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 7205 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 7206}
7207
01652550
JM		 7208
7209static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
7210{
a2e40bb6
FF		 7211 struct i802_bss *bss = priv;
7212 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 7213 struct nl_msg *msg;
7214 struct nl80211_sta_flag_update upd;
7215
7216 msg = nlmsg_alloc();
7217 if (!msg)
7218 return -ENOMEM;
7219
9fb04070 7220 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 7221
7222 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7223 if_nametoindex(bss->ifname));
01652550
JM		 7224 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
7225
7226 os_memset(&upd, 0, sizeof(upd));
7227 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
7228 if (authorized)
7229 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
7230 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7231
7232 return send_and_recv_msgs(drv, msg, NULL, NULL);
7233 nla_put_failure:
5883168a 7234 nlmsg_free(msg);
01652550
JM		 7235 return -ENOBUFS;
7236}
7237
3f5285e8 7238
f07ead6a
JM		 7239/* Set kernel driver on given frequency (MHz) */
7240static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 7241{
f07ead6a 7242 struct i802_bss *bss = priv;
e4fb2167 7243 return wpa_driver_nl80211_set_freq(bss, freq->freq, freq->ht_enabled,
f07ead6a 7244 freq->sec_channel_offset);
c5121837
JM		 7245}
7246
f7b3920c
JM		 7247
7248#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 7249
c5121837
JM		 7250static inline int min_int(int a, int b)
7251{
7252 if (a < b)
7253 return a;
7254 return b;
7255}
7256
7257
7258static int get_key_handler(struct nl_msg *msg, void *arg)
7259{
7260 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7261 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7262
7263 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7264 genlmsg_attrlen(gnlh, 0), NULL);
7265
7266 /*
7267 * TODO: validate the key index and mac address!
7268 * Otherwise, there's a race condition as soon as
7269 * the kernel starts sending key notifications.
7270 */
7271
7272 if (tb[NL80211_ATTR_KEY_SEQ])
7273 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
7274 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
7275 return NL_SKIP;
7276}
7277
7278
7279static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
7280 int idx, u8 *seq)
7281{
a2e40bb6
FF		 7282 struct i802_bss *bss = priv;
7283 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7284 struct nl_msg *msg;
7285
7286 msg = nlmsg_alloc();
7287 if (!msg)
7288 return -ENOMEM;
7289
9fb04070 7290 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 7291
7292 if (addr)
7293 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7294 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
7295 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
7296
7297 memset(seq, 0, 6);
7298
7299 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
7300 nla_put_failure:
9e088e74 7301 nlmsg_free(msg);
c5121837
JM		 7302 return -ENOBUFS;
7303}
7304
7305
c5121837
JM		 7306static int i802_set_rts(void *priv, int rts)
7307{
a2e40bb6
FF		 7308 struct i802_bss *bss = priv;
7309 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 7310 struct nl_msg *msg;
7311 int ret = -ENOBUFS;
7312 u32 val;
c5121837 7313
ad649451
JM		 7314 msg = nlmsg_alloc();
7315 if (!msg)
7316 return -ENOMEM;
c5121837 7317
ad649451
JM		 7318 if (rts >= 2347)
7319 val = (u32) -1;
7320 else
7321 val = rts;
c5121837 7322
9fb04070 7323 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 7324 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7325 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
7326
7327 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7328 msg = NULL;
ad649451
JM		 7329 if (!ret)
7330 return 0;
7331nla_put_failure:
5883168a 7332 nlmsg_free(msg);
ad649451
JM		 7333 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
7334 "%d (%s)", rts, ret, strerror(-ret));
7335 return ret;
c5121837
JM		 7336}
7337
7338
7339static int i802_set_frag(void *priv, int frag)
7340{
a2e40bb6
FF		 7341 struct i802_bss *bss = priv;
7342 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 7343 struct nl_msg *msg;
7344 int ret = -ENOBUFS;
7345 u32 val;
c5121837 7346
ad649451
JM		 7347 msg = nlmsg_alloc();
7348 if (!msg)
7349 return -ENOMEM;
c5121837 7350
ad649451
JM		 7351 if (frag >= 2346)
7352 val = (u32) -1;
7353 else
7354 val = frag;
c5121837 7355
9fb04070 7356 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 7357 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7358 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
7359
7360 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7361 msg = NULL;
ad649451
JM		 7362 if (!ret)
7363 return 0;
7364nla_put_failure:
5883168a 7365 nlmsg_free(msg);
ad649451
JM		 7366 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
7367 "%d: %d (%s)", frag, ret, strerror(-ret));
7368 return ret;
c5121837
JM		 7369}
7370
7371
c5121837
JM		 7372static int i802_flush(void *priv)
7373{
a2e40bb6
FF		 7374 struct i802_bss *bss = priv;
7375 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 7376 struct nl_msg *msg;
82554b10 7377 int res;
c5121837
JM		 7378
7379 msg = nlmsg_alloc();
7380 if (!msg)
7381 return -1;
7382
9fb04070 7383 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 7384
7385 /*
7386 * XXX: FIX! this needs to flush all VLANs too
7387 */
7388 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7389 if_nametoindex(bss->ifname));
c5121837 7390
82554b10
JM		 7391 res = send_and_recv_msgs(drv, msg, NULL, NULL);
7392 if (res) {
7393 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
7394 "(%s)", res, strerror(-res));
7395 }
7396 return res;
c5121837 7397 nla_put_failure:
9e088e74 7398 nlmsg_free(msg);
c5121837
JM		 7399 return -ENOBUFS;
7400}
7401
d732463c
JM		 7402#endif /* HOSTAPD || CONFIG_AP */
7403
c5121837
JM		 7404
7405static int get_sta_handler(struct nl_msg *msg, void *arg)
7406{
7407 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7408 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7409 struct hostap_sta_driver_data *data = arg;
7410 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
7411 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
7412 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
7413 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
7414 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
7415 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
7416 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
dc7785f8 7417 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
c5121837
JM		 7418 };
7419
7420 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7421 genlmsg_attrlen(gnlh, 0), NULL);
7422
7423 /*
7424 * TODO: validate the interface and mac address!
7425 * Otherwise, there's a race condition as soon as
7426 * the kernel starts sending station notifications.
7427 */
7428
7429 if (!tb[NL80211_ATTR_STA_INFO]) {
7430 wpa_printf(MSG_DEBUG, "sta stats missing!");
7431 return NL_SKIP;
7432 }
7433 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
7434 tb[NL80211_ATTR_STA_INFO],
7435 stats_policy)) {
7436 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
7437 return NL_SKIP;
7438 }
7439
7440 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
7441 data->inactive_msec =
7442 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
7443 if (stats[NL80211_STA_INFO_RX_BYTES])
7444 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
7445 if (stats[NL80211_STA_INFO_TX_BYTES])
7446 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
7447 if (stats[NL80211_STA_INFO_RX_PACKETS])
7448 data->rx_packets =
7449 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
7450 if (stats[NL80211_STA_INFO_TX_PACKETS])
7451 data->tx_packets =
7452 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
dc7785f8
YZ		 7453 if (stats[NL80211_STA_INFO_TX_FAILED])
7454 data->tx_retry_failed =
7455 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
c5121837
JM		 7456
7457 return NL_SKIP;
7458}
7459
7460static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
7461 const u8 *addr)
7462{
a2e40bb6
FF		 7463 struct i802_bss *bss = priv;
7464 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7465 struct nl_msg *msg;
7466
7467 os_memset(data, 0, sizeof(*data));
7468 msg = nlmsg_alloc();
7469 if (!msg)
7470 return -ENOMEM;
7471
9fb04070 7472 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 7473
7474 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 7475 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7476
7477 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
7478 nla_put_failure:
9e088e74 7479 nlmsg_free(msg);
c5121837
JM		 7480 return -ENOBUFS;
7481}
7482
7483
d732463c
JM		 7484#if defined(HOSTAPD) || defined(CONFIG_AP)
7485
c5121837
JM		 7486static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
7487 int cw_min, int cw_max, int burst_time)
7488{
a2e40bb6
FF		 7489 struct i802_bss *bss = priv;
7490 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7491 struct nl_msg *msg;
7492 struct nlattr *txq, *params;
7493
7494 msg = nlmsg_alloc();
7495 if (!msg)
7496 return -1;
7497
9fb04070 7498 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 7499
a2e40bb6 7500 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7501
7502 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
7503 if (!txq)
7504 goto nla_put_failure;
7505
7506 /* We are only sending parameters for a single TXQ at a time */
7507 params = nla_nest_start(msg, 1);
7508 if (!params)
7509 goto nla_put_failure;
7510
7e3c1781
JM		 7511 switch (queue) {
7512 case 0:
7513 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
7514 break;
7515 case 1:
7516 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
7517 break;
7518 case 2:
7519 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
7520 break;
7521 case 3:
7522 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
7523 break;
7524 }
c5121837
JM		 7525 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
7526 * 32 usec, so need to convert the value here. */
7527 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
7528 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
7529 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
7530 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
7531
7532 nla_nest_end(msg, params);
7533
7534 nla_nest_end(msg, txq);
7535
7536 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7537 return 0;
9e088e74 7538 msg = NULL;
c5121837 7539 nla_put_failure:
9e088e74 7540 nlmsg_free(msg);
c5121837
JM		 7541 return -1;
7542}
7543
7544
c5121837
JM		 7545static int i802_set_sta_vlan(void *priv, const u8 *addr,
7546 const char *ifname, int vlan_id)
7547{
a2e40bb6
FF		 7548 struct i802_bss *bss = priv;
7549 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 7550 struct nl_msg *msg;
cd1d72c1 7551 int ret = -ENOBUFS;
c5121837
JM		 7552
7553 msg = nlmsg_alloc();
7554 if (!msg)
7555 return -ENOMEM;
7556
9fb04070 7557 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 7558
7559 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7560 if_nametoindex(bss->ifname));
c5121837 7561 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 7562 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 7563 if_nametoindex(ifname));
7564
cd1d72c1 7565 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9e088e74 7566 msg = NULL;
cd1d72c1
JM		 7567 if (ret < 0) {
7568 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
7569 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
7570 MAC2STR(addr), ifname, vlan_id, ret,
7571 strerror(-ret));
7572 }
c5121837 7573 nla_put_failure:
9e088e74 7574 nlmsg_free(msg);
cd1d72c1 7575 return ret;
c5121837
JM		 7576}
7577
fbbfcbac 7578
c5121837
JM		 7579static int i802_get_inact_sec(void *priv, const u8 *addr)
7580{
7581 struct hostap_sta_driver_data data;
7582 int ret;
7583
7584 data.inactive_msec = (unsigned long) -1;
7585 ret = i802_read_sta_data(priv, &data, addr);
7586 if (ret || data.inactive_msec == (unsigned long) -1)
7587 return -1;
7588 return data.inactive_msec / 1000;
7589}
7590
7591
7592static int i802_sta_clear_stats(void *priv, const u8 *addr)
7593{
7594#if 0
7595 /* TODO */
7596#endif
7597 return 0;
7598}
7599
7600
731723a5
JM		 7601static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
7602 int reason)
c5121837 7603{
a2e40bb6 7604 struct i802_bss *bss = priv;
e1bd4e19 7605 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7606 struct ieee80211_mgmt mgmt;
7607
e1bd4e19
AT		 7608 if (drv->device_ap_sme)
7609 return wpa_driver_nl80211_sta_remove(bss, addr);
7610
c5121837
JM		 7611 memset(&mgmt, 0, sizeof(mgmt));
7612 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7613 WLAN_FC_STYPE_DEAUTH);
7614 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 7615 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7616 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 7617 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 7618 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 7619 IEEE80211_HDRLEN +
8cfa3527 7620 sizeof(mgmt.u.deauth), 0);
c5121837
JM		 7621}
7622
7623
731723a5
JM		 7624static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
7625 int reason)
c5121837 7626{
a2e40bb6 7627 struct i802_bss *bss = priv;
e1bd4e19 7628 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7629 struct ieee80211_mgmt mgmt;
7630
e1bd4e19
AT		 7631 if (drv->device_ap_sme)
7632 return wpa_driver_nl80211_sta_remove(bss, addr);
7633
c5121837
JM		 7634 memset(&mgmt, 0, sizeof(mgmt));
7635 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7636 WLAN_FC_STYPE_DISASSOC);
7637 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 7638 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7639 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 7640 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 7641 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 7642 IEEE80211_HDRLEN +
8cfa3527 7643 sizeof(mgmt.u.disassoc), 0);
c5121837
JM		 7644}
7645
ee7ab173
JB		 7646#endif /* HOSTAPD || CONFIG_AP */
7647
7648#ifdef HOSTAPD
c5121837 7649
f07ead6a
JM		 7650static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7651{
7652 int i;
7653 int *old;
7654
7655 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
7656 ifidx);
7657 for (i = 0; i < drv->num_if_indices; i++) {
7658 if (drv->if_indices[i] == 0) {
7659 drv->if_indices[i] = ifidx;
7660 return;
7661 }
7662 }
7663
7664 if (drv->if_indices != drv->default_if_indices)
7665 old = drv->if_indices;
7666 else
7667 old = NULL;
7668
067ffa26
JM		 7669 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
7670 sizeof(int));
f07ead6a
JM		 7671 if (!drv->if_indices) {
7672 if (!old)
7673 drv->if_indices = drv->default_if_indices;
7674 else
7675 drv->if_indices = old;
7676 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
7677 "interfaces");
7678 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
7679 return;
7680 } else if (!old)
7681 os_memcpy(drv->if_indices, drv->default_if_indices,
7682 sizeof(drv->default_if_indices));
7683 drv->if_indices[drv->num_if_indices] = ifidx;
7684 drv->num_if_indices++;
7685}
7686
7687
7688static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7689{
7690 int i;
7691
7692 for (i = 0; i < drv->num_if_indices; i++) {
7693 if (drv->if_indices[i] == ifidx) {
7694 drv->if_indices[i] = 0;
7695 break;
7696 }
7697 }
7698}
7699
7700
7701static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7702{
7703 int i;
7704
7705 for (i = 0; i < drv->num_if_indices; i++)
7706 if (drv->if_indices[i] == ifidx)
7707 return 1;
7708
7709 return 0;
7710}
7711
7712
7713static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
7714 const char *bridge_ifname)
7715{
7716 struct i802_bss *bss = priv;
7717 struct wpa_driver_nl80211_data *drv = bss->drv;
7718 char name[IFNAMSIZ + 1];
7719
7720 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
7721 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
7722 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
7723 if (val) {
7724 if (!if_nametoindex(name)) {
7725 if (nl80211_create_iface(drv, name,
7726 NL80211_IFTYPE_AP_VLAN,
7727 NULL, 1) < 0)
7728 return -1;
7729 if (bridge_ifname &&
c81eff1a
BG		 7730 linux_br_add_if(drv->global->ioctl_sock,
7731 bridge_ifname, name) < 0)
f07ead6a
JM		 7732 return -1;
7733 }
75227f3a
JM		 7734 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
7735 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
7736 "interface %s up", name);
7737 }
f07ead6a
JM		 7738 return i802_set_sta_vlan(priv, addr, name, 0);
7739 } else {
c34e618d
FF		 7740 if (bridge_ifname)
7741 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
7742 name);
7743
f07ead6a
JM		 7744 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
7745 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
7746 name);
7747 }
7748}
7749
7750
7751static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
7752{
7753 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7754 struct sockaddr_ll lladdr;
7755 unsigned char buf[3000];
7756 int len;
7757 socklen_t fromlen = sizeof(lladdr);
7758
7759 len = recvfrom(sock, buf, sizeof(buf), 0,
7760 (struct sockaddr *)&lladdr, &fromlen);
7761 if (len < 0) {
7762 perror("recv");
7763 return;
7764 }
7765
7766 if (have_ifidx(drv, lladdr.sll_ifindex))
7767 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
7768}
7769
7770
94627f6c 7771static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 7772 struct i802_bss *bss,
94627f6c
JM		 7773 const char *brname, const char *ifname)
7774{
7775 int ifindex;
7776 char in_br[IFNAMSIZ];
7777
e17a2477 7778 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 7779 ifindex = if_nametoindex(brname);
7780 if (ifindex == 0) {
7781 /*
7782 * Bridge was configured, but the bridge device does
7783 * not exist. Try to add it now.
7784 */
c81eff1a 7785 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 7786 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
7787 "bridge interface %s: %s",
7788 brname, strerror(errno));
7789 return -1;
7790 }
e17a2477 7791 bss->added_bridge = 1;
94627f6c
JM		 7792 add_ifidx(drv, if_nametoindex(brname));
7793 }
7794
7795 if (linux_br_get(in_br, ifname) == 0) {
7796 if (os_strcmp(in_br, brname) == 0)
7797 return 0; /* already in the bridge */
7798
7799 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
7800 "bridge %s", ifname, in_br);
c81eff1a
BG		 7801 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
7802 0) {
94627f6c
JM		 7803 wpa_printf(MSG_ERROR, "nl80211: Failed to "
7804 "remove interface %s from bridge "
7805 "%s: %s",
7806 ifname, brname, strerror(errno));
7807 return -1;
7808 }
7809 }
7810
7811 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
7812 ifname, brname);
c81eff1a 7813 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 7814 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
7815 "into bridge %s: %s",
7816 ifname, brname, strerror(errno));
7817 return -1;
7818 }
e17a2477 7819 bss->added_if_into_bridge = 1;
94627f6c
JM		 7820
7821 return 0;
7822}
7823
7824
92f475b4
JM		 7825static void *i802_init(struct hostapd_data *hapd,
7826 struct wpa_init_params *params)
c5121837
JM		 7827{
7828 struct wpa_driver_nl80211_data *drv;
a2e40bb6 7829 struct i802_bss *bss;
c5121837 7830 size_t i;
94627f6c
JM		 7831 char brname[IFNAMSIZ];
7832 int ifindex, br_ifindex;
7833 int br_added = 0;
c5121837 7834
4b24282a
JM		 7835 bss = wpa_driver_nl80211_init(hapd, params->ifname,
7836 params->global_priv);
a2e40bb6 7837 if (bss == NULL)
c5121837 7838 return NULL;
c5121837 7839
a2e40bb6 7840 drv = bss->drv;
0382097e 7841 drv->nlmode = NL80211_IFTYPE_AP;
7635bfb0
JB		 7842 drv->eapol_sock = -1;
7843
94627f6c
JM		 7844 if (linux_br_get(brname, params->ifname) == 0) {
7845 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
7846 params->ifname, brname);
7847 br_ifindex = if_nametoindex(brname);
7848 } else {
7849 brname[0] = '\0';
7850 br_ifindex = 0;
7851 }
7852
c5121837
JM		 7853 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
7854 drv->if_indices = drv->default_if_indices;
92f475b4 7855 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 7856 if (params->bridge[i]) {
7857 ifindex = if_nametoindex(params->bridge[i]);
7858 if (ifindex)
7859 add_ifidx(drv, ifindex);
7860 if (ifindex == br_ifindex)
7861 br_added = 1;
7862 }
c5121837 7863 }
94627f6c
JM		 7864 if (!br_added && br_ifindex &&
7865 (params->num_bridge == 0 || !params->bridge[0]))
7866 add_ifidx(drv, br_ifindex);
c5121837 7867
ad1e68e6
JM		 7868 /* start listening for EAPOL on the default AP interface */
7869 add_ifidx(drv, drv->ifindex);
7870
c81eff1a 7871 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
6980c191 7872 goto failed;
ad1e68e6 7873
6980c191 7874 if (params->bssid) {
c81eff1a 7875 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2ac9688e 7876 params->bssid))
460456f8
JM		 7877 goto failed;
7878 }
ad1e68e6 7879
b1f625e0 7880 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 7881 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 7882 "into AP mode", bss->ifname);
bbaf0837 7883 goto failed;
ad1e68e6
JM		 7884 }
7885
94627f6c 7886 if (params->num_bridge && params->bridge[0] &&
e17a2477 7887 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 7888 goto failed;
7889
c81eff1a 7890 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
bbaf0837 7891 goto failed;
ad1e68e6
JM		 7892
7893 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
7894 if (drv->eapol_sock < 0) {
7895 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 7896 goto failed;
ad1e68e6
JM		 7897 }
7898
7899 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
7900 {
7901 printf("Could not register read socket for eapol\n");
c5121837 7902 goto failed;
ad1e68e6
JM		 7903 }
7904
c81eff1a
BG		 7905 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7906 params->own_addr))
bbaf0837 7907 goto failed;
c5121837 7908
341eebee
JB		 7909 memcpy(bss->addr, params->own_addr, ETH_ALEN);
7910
a2e40bb6 7911 return bss;
c5121837
JM		 7912
7913failed:
7635bfb0 7914 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 7915 return NULL;
7916}
c5121837 7917
c5121837 7918
bbaf0837
JM		 7919static void i802_deinit(void *priv)
7920{
7921 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 7922}
7923
7924#endif /* HOSTAPD */
7925
7926
22a7c9d7
JM		 7927static enum nl80211_iftype wpa_driver_nl80211_if_type(
7928 enum wpa_driver_if_type type)
7929{
7930 switch (type) {
7931 case WPA_IF_STATION:
9f51b113 7932 return NL80211_IFTYPE_STATION;
75bde05d
JM		 7933 case WPA_IF_P2P_CLIENT:
7934 case WPA_IF_P2P_GROUP:
9f51b113 7935 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 7936 case WPA_IF_AP_VLAN:
7937 return NL80211_IFTYPE_AP_VLAN;
7938 case WPA_IF_AP_BSS:
7939 return NL80211_IFTYPE_AP;
9f51b113
JB		 7940 case WPA_IF_P2P_GO:
7941 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 7942 }
7943 return -1;
7944}
7945
7946
482856c8
JM		 7947#ifdef CONFIG_P2P
7948
f2ed8023
JM		 7949static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
7950{
7951 struct wpa_driver_nl80211_data *drv;
7952 dl_list_for_each(drv, &global->interfaces,
7953 struct wpa_driver_nl80211_data, list) {
341eebee 7954 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
f2ed8023
JM		 7955 return 1;
7956 }
7957 return 0;
7958}
7959
7960
7961static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
7962 u8 *new_addr)
7963{
7964 unsigned int idx;
7965
7966 if (!drv->global)
7967 return -1;
7968
341eebee 7969 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
f2ed8023 7970 for (idx = 0; idx < 64; idx++) {
341eebee 7971 new_addr[0] = drv->first_bss.addr[0] | 0x02;
f2ed8023
JM		 7972 new_addr[0] ^= idx << 2;
7973 if (!nl80211_addr_in_use(drv->global, new_addr))
7974 break;
7975 }
7976 if (idx == 64)
7977 return -1;
7978
7979 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
7980 MACSTR, MAC2STR(new_addr));
7981
7982 return 0;
7983}
7984
482856c8
JM		 7985#endif /* CONFIG_P2P */
7986
f2ed8023 7987
7ab68865 7988static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 7989 const char *ifname, const u8 *addr,
f3585c8a 7990 void *bss_ctx, void **drv_priv,
e17a2477
JM		 7991 char *force_ifname, u8 *if_addr,
7992 const char *bridge)
22a7c9d7 7993{
a2e40bb6
FF		 7994 struct i802_bss *bss = priv;
7995 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 7996 int ifidx;
7997#ifdef HOSTAPD
a2e40bb6 7998 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 7999
8000 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 8001 new_bss = os_zalloc(sizeof(*new_bss));
8002 if (new_bss == NULL)
22a7c9d7
JM		 8003 return -1;
8004 }
8005#endif /* HOSTAPD */
8006
f3585c8a
JM		 8007 if (addr)
8008 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 8009 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 8010 wpa_driver_nl80211_if_type(type), addr,
8011 0);
22a7c9d7
JM		 8012 if (ifidx < 0) {
8013#ifdef HOSTAPD
a2e40bb6 8014 os_free(new_bss);
22a7c9d7
JM		 8015#endif /* HOSTAPD */
8016 return -1;
8017 }
8018
f3585c8a 8019 if (!addr &&
c81eff1a
BG		 8020 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8021 if_addr) < 0) {
c55f774d 8022 nl80211_remove_iface(drv, ifidx);
f3585c8a 8023 return -1;
c55f774d
JM		 8024 }
8025
8026#ifdef CONFIG_P2P
8027 if (!addr &&
8028 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
8029 type == WPA_IF_P2P_GO)) {
8030 /* Enforce unique P2P Interface Address */
8031 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
8032
c81eff1a
BG		 8033 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8034 own_addr) < 0 ||
8035 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
8036 new_addr) < 0) {
c55f774d
JM		 8037 nl80211_remove_iface(drv, ifidx);
8038 return -1;
8039 }
8040 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
8041 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
8042 "for P2P group interface");
f2ed8023 8043 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 8044 nl80211_remove_iface(drv, ifidx);
8045 return -1;
8046 }
c81eff1a 8047 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 8048 new_addr) < 0) {
8049 nl80211_remove_iface(drv, ifidx);
8050 return -1;
8051 }
c55f774d 8052 }
f67eeb5c 8053 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 8054 }
8055#endif /* CONFIG_P2P */
f3585c8a 8056
22a7c9d7 8057#ifdef HOSTAPD
e17a2477
JM		 8058 if (bridge &&
8059 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
8060 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
8061 "interface %s to a bridge %s", ifname, bridge);
8062 nl80211_remove_iface(drv, ifidx);
8063 os_free(new_bss);
8064 return -1;
8065 }
8066
22a7c9d7 8067 if (type == WPA_IF_AP_BSS) {
c81eff1a
BG		 8068 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
8069 {
34f2f814 8070 nl80211_remove_iface(drv, ifidx);
07179987 8071 os_free(new_bss);
22a7c9d7
JM		 8072 return -1;
8073 }
a2e40bb6 8074 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
341eebee 8075 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
a2e40bb6
FF		 8076 new_bss->ifindex = ifidx;
8077 new_bss->drv = drv;
8078 new_bss->next = drv->first_bss.next;
a7a6af4c 8079 new_bss->freq = drv->first_bss.freq;
a2e40bb6
FF		 8080 drv->first_bss.next = new_bss;
8081 if (drv_priv)
8082 *drv_priv = new_bss;
cc7a48d1 8083 nl80211_init_bss(new_bss);
3dd1d890
YAP		 8084
8085 /* Subscribe management frames for this WPA_IF_AP_BSS */
8086 if (nl80211_setup_ap(new_bss))
8087 return -1;
22a7c9d7
JM		 8088 }
8089#endif /* HOSTAPD */
8090
ff6a158b
JM		 8091 if (drv->global)
8092 drv->global->if_add_ifindex = ifidx;
8093
22a7c9d7
JM		 8094 return 0;
8095}
8096
8097
8098static int wpa_driver_nl80211_if_remove(void *priv,
8099 enum wpa_driver_if_type type,
8100 const char *ifname)
8101{
a2e40bb6
FF		 8102 struct i802_bss *bss = priv;
8103 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 8104 int ifindex = if_nametoindex(ifname);
8105
e748062b
JM		 8106 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
8107 __func__, type, ifname, ifindex);
8108 if (ifindex <= 0)
8109 return -1;
e17a2477 8110
c34e618d
FF		 8111 nl80211_remove_iface(drv, ifindex);
8112
e17a2477 8113#ifdef HOSTAPD
c34e618d
FF		 8114 if (type != WPA_IF_AP_BSS)
8115 return 0;
8116
e17a2477 8117 if (bss->added_if_into_bridge) {
c81eff1a
BG		 8118 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
8119 bss->ifname) < 0)
e17a2477
JM		 8120 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
8121 "interface %s from bridge %s: %s",
8122 bss->ifname, bss->brname, strerror(errno));
8123 }
8124 if (bss->added_bridge) {
c81eff1a 8125 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 8126 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
8127 "bridge %s: %s",
8128 bss->brname, strerror(errno));
8129 }
a2e40bb6
FF		 8130
8131 if (bss != &drv->first_bss) {
8546ea19 8132 struct i802_bss *tbss;
a2e40bb6 8133
8546ea19
JM		 8134 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
8135 if (tbss->next == bss) {
8136 tbss->next = bss->next;
3dd1d890
YAP		 8137 /* Unsubscribe management frames */
8138 nl80211_teardown_ap(bss);
cc7a48d1 8139 nl80211_destroy_bss(bss);
8546ea19
JM		 8140 os_free(bss);
8141 bss = NULL;
8142 break;
8143 }
22a7c9d7 8144 }
8546ea19
JM		 8145 if (bss)
8146 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
8147 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 8148 }
8149#endif /* HOSTAPD */
8150
8151 return 0;
8152}
8153
8154
55777702
JM		 8155static int cookie_handler(struct nl_msg *msg, void *arg)
8156{
8157 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8158 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8159 u64 *cookie = arg;
8160 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8161 genlmsg_attrlen(gnlh, 0), NULL);
8162 if (tb[NL80211_ATTR_COOKIE])
8163 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
8164 return NL_SKIP;
8165}
8166
8167
88df0ef7 8168static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f
JB		 8169 unsigned int freq, unsigned int wait,
8170 const u8 *buf, size_t buf_len,
88df0ef7
JB		 8171 u64 *cookie_out, int no_cck, int no_ack,
8172 int offchanok)
9884f9cc 8173{
88df0ef7 8174 struct wpa_driver_nl80211_data *drv = bss->drv;
9884f9cc
JB		 8175 struct nl_msg *msg;
8176 u64 cookie;
8177 int ret = -1;
8178
8179 msg = nlmsg_alloc();
8180 if (!msg)
8181 return -1;
8182
2e3e4566
JM		 8183 wpa_printf(MSG_DEBUG, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
8184 "no_ack=%d offchanok=%d",
8185 freq, wait, no_cck, no_ack, offchanok);
9fb04070 8186 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc 8187
88df0ef7 8188 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9884f9cc 8189 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 8190 if (wait)
8191 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
b9fd8ce8 8192 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
88df0ef7 8193 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
b106173a
JM		 8194 if (no_cck)
8195 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
ddc53271
JM		 8196 if (no_ack)
8197 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
970fa12e 8198
9884f9cc
JB		 8199 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
8200
8201 cookie = 0;
8202 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8203 msg = NULL;
8204 if (ret) {
8205 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 8206 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
8207 freq, wait);
9884f9cc
JB		 8208 goto nla_put_failure;
8209 }
ddc53271
JM		 8210 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; "
8211 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
8212 (long long unsigned int) cookie);
9884f9cc
JB		 8213
8214 if (cookie_out)
ddc53271 8215 *cookie_out = no_ack ? (u64) -1 : cookie;
9884f9cc
JB		 8216
8217nla_put_failure:
8218 nlmsg_free(msg);
8219 return ret;
8220}
8221
8222
58f6fbe0 8223static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 8224 unsigned int wait_time,
58f6fbe0
JM		 8225 const u8 *dst, const u8 *src,
8226 const u8 *bssid,
b106173a
JM		 8227 const u8 *data, size_t data_len,
8228 int no_cck)
58f6fbe0 8229{
a2e40bb6
FF		 8230 struct i802_bss *bss = priv;
8231 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 8232 int ret = -1;
58f6fbe0
JM		 8233 u8 *buf;
8234 struct ieee80211_hdr *hdr;
58f6fbe0 8235
5dfca53f 8236 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
55231068
JM		 8237 "freq=%u MHz wait=%d ms no_cck=%d)",
8238 drv->ifindex, freq, wait_time, no_cck);
58f6fbe0
JM		 8239
8240 buf = os_zalloc(24 + data_len);
8241 if (buf == NULL)
8242 return ret;
8243 os_memcpy(buf + 24, data, data_len);
8244 hdr = (struct ieee80211_hdr *) buf;
8245 hdr->frame_control =
8246 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
8247 os_memcpy(hdr->addr1, dst, ETH_ALEN);
8248 os_memcpy(hdr->addr2, src, ETH_ALEN);
8249 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
8250
b1f625e0 8251 if (is_ap_interface(drv->nlmode))
55231068
JM		 8252 ret = wpa_driver_nl80211_send_mlme_freq(priv, buf,
8253 24 + data_len,
8254 0, freq, no_cck, 1,
8255 wait_time);
9884f9cc 8256 else
88df0ef7 8257 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
5dfca53f 8258 24 + data_len,
b106173a 8259 &drv->send_action_cookie,
88df0ef7 8260 no_cck, 0, 1);
58f6fbe0 8261
f8bf1421 8262 os_free(buf);
58f6fbe0
JM		 8263 return ret;
8264}
8265
8266
5dfca53f
JB		 8267static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
8268{
8269 struct i802_bss *bss = priv;
8270 struct wpa_driver_nl80211_data *drv = bss->drv;
8271 struct nl_msg *msg;
8272 int ret;
8273
8274 msg = nlmsg_alloc();
8275 if (!msg)
8276 return;
8277
9fb04070 8278 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 8279
8280 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8281 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
8282
8283 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8284 msg = NULL;
8285 if (ret)
8286 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
8287 "(%s)", ret, strerror(-ret));
8288
8289 nla_put_failure:
8290 nlmsg_free(msg);
8291}
8292
8293
55777702
JM		 8294static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
8295 unsigned int duration)
8296{
a2e40bb6
FF		 8297 struct i802_bss *bss = priv;
8298 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 8299 struct nl_msg *msg;
8300 int ret;
8301 u64 cookie;
8302
8303 msg = nlmsg_alloc();
8304 if (!msg)
8305 return -1;
8306
9fb04070 8307 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702
JM		 8308
8309 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8310 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8311 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
8312
8313 cookie = 0;
8314 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
5883168a 8315 msg = NULL;
55777702
JM		 8316 if (ret == 0) {
8317 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
8318 "0x%llx for freq=%u MHz duration=%u",
8319 (long long unsigned int) cookie, freq, duration);
8320 drv->remain_on_chan_cookie = cookie;
531f0331 8321 drv->pending_remain_on_chan = 1;
55777702
JM		 8322 return 0;
8323 }
8324 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 8325 "(freq=%d duration=%u): %d (%s)",
8326 freq, duration, ret, strerror(-ret));
55777702 8327nla_put_failure:
5883168a 8328 nlmsg_free(msg);
55777702
JM		 8329 return -1;
8330}
8331
8332
8333static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
8334{
a2e40bb6
FF		 8335 struct i802_bss *bss = priv;
8336 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 8337 struct nl_msg *msg;
8338 int ret;
8339
8340 if (!drv->pending_remain_on_chan) {
8341 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
8342 "to cancel");
8343 return -1;
8344 }
8345
8346 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
8347 "0x%llx",
8348 (long long unsigned int) drv->remain_on_chan_cookie);
8349
8350 msg = nlmsg_alloc();
8351 if (!msg)
8352 return -1;
8353
9fb04070 8354 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702
JM		 8355
8356 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8357 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
8358
8359 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8360 msg = NULL;
55777702
JM		 8361 if (ret == 0)
8362 return 0;
8363 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
8364 "%d (%s)", ret, strerror(-ret));
8365nla_put_failure:
5883168a 8366 nlmsg_free(msg);
55777702
JM		 8367 return -1;
8368}
8369
8370
504e905c
JM		 8371static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
8372{
a2e40bb6
FF		 8373 struct i802_bss *bss = priv;
8374 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 8375
5582a5d1 8376 if (!report) {
0d891981
JM		 8377 if (bss->nl_preq && drv->device_ap_sme &&
8378 is_ap_interface(drv->nlmode)) {
8379 /*
8380 * Do not disable Probe Request reporting that was
8381 * enabled in nl80211_setup_ap().
8382 */
8383 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
8384 "Probe Request reporting nl_preq=%p while "
8385 "in AP mode", bss->nl_preq);
8386 } else if (bss->nl_preq) {
36488c05
JM		 8387 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
8388 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 8389 eloop_unregister_read_sock(
481234cf 8390 nl_socket_get_fd(bss->nl_preq));
221a59c9 8391 nl_destroy_handles(&bss->nl_preq);
5582a5d1
JB		 8392 }
8393 return 0;
8394 }
8395
481234cf 8396 if (bss->nl_preq) {
5582a5d1 8397 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
36488c05 8398 "already on! nl_preq=%p", bss->nl_preq);
5582a5d1
JB		 8399 return 0;
8400 }
8401
481234cf
JM		 8402 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
8403 if (bss->nl_preq == NULL)
5582a5d1 8404 return -1;
36488c05
JM		 8405 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
8406 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 8407
481234cf 8408 if (nl80211_register_frame(bss, bss->nl_preq,
5582a5d1
JB		 8409 (WLAN_FC_TYPE_MGMT << 2) |
8410 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 8411 NULL, 0) < 0)
8412 goto out_err;
5582a5d1 8413
481234cf 8414 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq),
a11241fa 8415 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 8416 bss->nl_preq);
5582a5d1 8417
504e905c 8418 return 0;
5582a5d1 8419
a92dfde8 8420 out_err:
221a59c9 8421 nl_destroy_handles(&bss->nl_preq);
5582a5d1 8422 return -1;
504e905c
JM		 8423}
8424
8425
4e5cb1a3
JM		 8426static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
8427 int ifindex, int disabled)
8428{
8429 struct nl_msg *msg;
8430 struct nlattr *bands, *band;
8431 int ret;
8432
8433 msg = nlmsg_alloc();
8434 if (!msg)
8435 return -1;
8436
9fb04070 8437 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 8438 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
8439
8440 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
8441 if (!bands)
8442 goto nla_put_failure;
8443
8444 /*
8445 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
8446 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
8447 * rates. All 5 GHz rates are left enabled.
8448 */
8449 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
8450 if (!band)
8451 goto nla_put_failure;
1dea5882
JM		 8452 if (disabled) {
8453 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
8454 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8455 }
4e5cb1a3
JM		 8456 nla_nest_end(msg, band);
8457
8458 nla_nest_end(msg, bands);
8459
8460 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8461 msg = NULL;
8462 if (ret) {
8463 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
8464 "(%s)", ret, strerror(-ret));
1d0c6fb1
JM		 8465 } else
8466 drv->disabled_11b_rates = disabled;
4e5cb1a3
JM		 8467
8468 return ret;
8469
8470nla_put_failure:
8471 nlmsg_free(msg);
8472 return -1;
8473}
8474
8475
af473088
JM		 8476static int wpa_driver_nl80211_deinit_ap(void *priv)
8477{
a2e40bb6
FF		 8478 struct i802_bss *bss = priv;
8479 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 8480 if (!is_ap_interface(drv->nlmode))
af473088
JM		 8481 return -1;
8482 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 8483 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 8484}
8485
8486
3c29244e
EP		 8487static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
8488{
8489 struct i802_bss *bss = priv;
8490 struct wpa_driver_nl80211_data *drv = bss->drv;
8491 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
8492 return -1;
8493 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
8494}
8495
8496
207ef3fb
JM		 8497static void wpa_driver_nl80211_resume(void *priv)
8498{
a2e40bb6
FF		 8499 struct i802_bss *bss = priv;
8500 struct wpa_driver_nl80211_data *drv = bss->drv;
c81eff1a 8501 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 8502 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
8503 "resume event");
8504 }
8505}
8506
8507
7b90c16a
JM		 8508static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
8509 const u8 *ies, size_t ies_len)
8510{
8511 struct i802_bss *bss = priv;
8512 struct wpa_driver_nl80211_data *drv = bss->drv;
8513 int ret;
8514 u8 *data, *pos;
8515 size_t data_len;
341eebee 8516 const u8 *own_addr = bss->addr;
7b90c16a
JM		 8517
8518 if (action != 1) {
8519 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
8520 "action %d", action);
8521 return -1;
8522 }
8523
8524 /*
8525 * Action frame payload:
8526 * Category[1] = 6 (Fast BSS Transition)
8527 * Action[1] = 1 (Fast BSS Transition Request)
8528 * STA Address
8529 * Target AP Address
8530 * FT IEs
8531 */
8532
73fc617d
JM		 8533 data_len = 2 + 2 * ETH_ALEN + ies_len;
8534 data = os_malloc(data_len);
7b90c16a
JM		 8535 if (data == NULL)
8536 return -1;
8537 pos = data;
8538 *pos++ = 0x06; /* FT Action category */
8539 *pos++ = action;
8540 os_memcpy(pos, own_addr, ETH_ALEN);
8541 pos += ETH_ALEN;
8542 os_memcpy(pos, target_ap, ETH_ALEN);
8543 pos += ETH_ALEN;
8544 os_memcpy(pos, ies, ies_len);
8545
190b9062
JB		 8546 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
8547 drv->bssid, own_addr, drv->bssid,
b106173a 8548 data, data_len, 0);
7b90c16a
JM		 8549 os_free(data);
8550
8551 return ret;
8552}
8553
8554
b625473c
JM		 8555static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
8556{
8557 struct i802_bss *bss = priv;
8558 struct wpa_driver_nl80211_data *drv = bss->drv;
8559 struct nl_msg *msg, *cqm = NULL;
f0494d0f 8560 int ret = -1;
b625473c
JM		 8561
8562 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
8563 "hysteresis=%d", threshold, hysteresis);
8564
8565 msg = nlmsg_alloc();
8566 if (!msg)
8567 return -1;
8568
9fb04070 8569 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 8570
8571 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8572
8573 cqm = nlmsg_alloc();
8574 if (cqm == NULL)
21270bb4 8575 goto nla_put_failure;
b625473c
JM		 8576
8577 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
8578 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
f0494d0f
JM		 8579 if (nla_put_nested(msg, NL80211_ATTR_CQM, cqm) < 0)
8580 goto nla_put_failure;
21270bb4 8581
f0494d0f 8582 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
b625473c
JM		 8583 msg = NULL;
8584
8585nla_put_failure:
5883168a 8586 nlmsg_free(cqm);
b625473c 8587 nlmsg_free(msg);
f0494d0f 8588 return ret;
b625473c
JM		 8589}
8590
8591
1c5c7273
PS		 8592static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
8593{
8594 struct i802_bss *bss = priv;
8595 struct wpa_driver_nl80211_data *drv = bss->drv;
8596 int res;
8597
8598 os_memset(si, 0, sizeof(*si));
8599 res = nl80211_get_link_signal(drv, si);
8600 if (res != 0)
8601 return res;
8602
8603 return nl80211_get_link_noise(drv, si);
8604}
8605
8606
57ebba59
JJ		 8607static int wpa_driver_nl80211_shared_freq(void *priv)
8608{
8609 struct i802_bss *bss = priv;
8610 struct wpa_driver_nl80211_data *drv = bss->drv;
8611 struct wpa_driver_nl80211_data *driver;
8612 int freq = 0;
8613
8614 /*
8615 * If the same PHY is in connected state with some other interface,
8616 * then retrieve the assoc freq.
8617 */
8618 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
8619 drv->phyname);
8620
8621 dl_list_for_each(driver, &drv->global->interfaces,
8622 struct wpa_driver_nl80211_data, list) {
8623 if (drv == driver ||
8624 os_strcmp(drv->phyname, driver->phyname) != 0 ||
8625 !driver->associated)
8626 continue;
8627
8628 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
8629 MACSTR,
8630 driver->phyname, driver->first_bss.ifname,
341eebee 8631 MAC2STR(driver->first_bss.addr));
d3bd0f05
JJ		 8632 if (is_ap_interface(driver->nlmode))
8633 freq = driver->first_bss.freq;
8634 else
8635 freq = nl80211_get_assoc_freq(driver);
57ebba59
JJ		 8636 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
8637 drv->phyname, freq);
8638 }
8639
8640 if (!freq)
8641 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
8642 "PHY (%s) in associated state", drv->phyname);
8643
8644 return freq;
8645}
8646
8647
b91ab76e
JM		 8648static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
8649 int encrypt)
8650{
8651 struct i802_bss *bss = priv;
55231068
JM		 8652 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
8653 0, 0, 0, 0);
b91ab76e
JM		 8654}
8655
8656
c55f774d
JM		 8657static int nl80211_set_param(void *priv, const char *param)
8658{
c55f774d
JM		 8659 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
8660 if (param == NULL)
8661 return 0;
8662
8663#ifdef CONFIG_P2P
8664 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 8665 struct i802_bss *bss = priv;
8666 struct wpa_driver_nl80211_data *drv = bss->drv;
8667
c55f774d
JM		 8668 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
8669 "interface");
8670 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
8671 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
8672 }
8673#endif /* CONFIG_P2P */
8674
8675 return 0;
8676}
8677
8678
f2ed8023
JM		 8679static void * nl80211_global_init(void)
8680{
8681 struct nl80211_global *global;
36d84860
BG		 8682 struct netlink_config *cfg;
8683
f2ed8023
JM		 8684 global = os_zalloc(sizeof(*global));
8685 if (global == NULL)
8686 return NULL;
c81eff1a 8687 global->ioctl_sock = -1;
f2ed8023 8688 dl_list_init(&global->interfaces);
ff6a158b 8689 global->if_add_ifindex = -1;
36d84860
BG		 8690
8691 cfg = os_zalloc(sizeof(*cfg));
8692 if (cfg == NULL)
8693 goto err;
8694
8695 cfg->ctx = global;
8696 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
8697 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
8698 global->netlink = netlink_init(cfg);
8699 if (global->netlink == NULL) {
8700 os_free(cfg);
8701 goto err;
8702 }
8703
2a7b66f5
BG		 8704 if (wpa_driver_nl80211_init_nl_global(global) < 0)
8705 goto err;
8706
c81eff1a
BG		 8707 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
8708 if (global->ioctl_sock < 0) {
8709 perror("socket(PF_INET,SOCK_DGRAM)");
8710 goto err;
8711 }
8712
f2ed8023 8713 return global;
36d84860
BG		 8714
8715err:
8716 nl80211_global_deinit(global);
8717 return NULL;
f2ed8023
JM		 8718}
8719
8720
8721static void nl80211_global_deinit(void *priv)
8722{
8723 struct nl80211_global *global = priv;
8724 if (global == NULL)
8725 return;
8726 if (!dl_list_empty(&global->interfaces)) {
8727 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
8728 "nl80211_global_deinit",
8729 dl_list_len(&global->interfaces));
8730 }
36d84860
BG		 8731
8732 if (global->netlink)
8733 netlink_deinit(global->netlink);
8734
276e2d67
BG		 8735 nl_destroy_handles(&global->nl);
8736
481234cf 8737 if (global->nl_event) {
d6c9aab8 8738 eloop_unregister_read_sock(
481234cf 8739 nl_socket_get_fd(global->nl_event));
d6c9aab8
JB		 8740 nl_destroy_handles(&global->nl_event);
8741 }
8742
8743 nl_cb_put(global->nl_cb);
2a7b66f5 8744
c81eff1a
BG		 8745 if (global->ioctl_sock >= 0)
8746 close(global->ioctl_sock);
8747
f2ed8023
JM		 8748 os_free(global);
8749}
8750
8751
6859f1cb
BG		 8752static const char * nl80211_get_radio_name(void *priv)
8753{
8754 struct i802_bss *bss = priv;
8755 struct wpa_driver_nl80211_data *drv = bss->drv;
8756 return drv->phyname;
8757}
8758
8759
a6efc65d
JM		 8760static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
8761 const u8 *pmkid)
8762{
8763 struct nl_msg *msg;
8764
8765 msg = nlmsg_alloc();
8766 if (!msg)
8767 return -ENOMEM;
8768
9fb04070 8769 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 8770
8771 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
8772 if (pmkid)
8773 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
8774 if (bssid)
8775 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8776
8777 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8778 nla_put_failure:
9e088e74 8779 nlmsg_free(msg);
a6efc65d
JM		 8780 return -ENOBUFS;
8781}
8782
8783
8784static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8785{
8786 struct i802_bss *bss = priv;
8787 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
8788 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
8789}
8790
8791
8792static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8793{
8794 struct i802_bss *bss = priv;
8795 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
8796 MAC2STR(bssid));
8797 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
8798}
8799
8800
8801static int nl80211_flush_pmkid(void *priv)
8802{
8803 struct i802_bss *bss = priv;
8804 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
8805 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
8806}
8807
8808
b14a210c
JB		 8809static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
8810 const u8 *replay_ctr)
8811{
8812 struct i802_bss *bss = priv;
8813 struct wpa_driver_nl80211_data *drv = bss->drv;
8814 struct nlattr *replay_nested;
8815 struct nl_msg *msg;
8816
8817 msg = nlmsg_alloc();
8818 if (!msg)
8819 return;
8820
9fb04070 8821 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 8822
8823 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8824
8825 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8826 if (!replay_nested)
8827 goto nla_put_failure;
8828
8829 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
8830 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
8831 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
8832 replay_ctr);
8833
8834 nla_nest_end(msg, replay_nested);
8835
8836 send_and_recv_msgs(drv, msg, NULL, NULL);
8837 return;
8838 nla_put_failure:
8839 nlmsg_free(msg);
8840}
8841
8842
39718852
JB		 8843static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
8844 const u8 *addr, int qos)
bcf24348 8845{
39718852
JB		 8846 /* send data frame to poll STA and check whether
8847 * this frame is ACKed */
bcf24348
JB		 8848 struct {
8849 struct ieee80211_hdr hdr;
8850 u16 qos_ctl;
8851 } STRUCT_PACKED nulldata;
8852 size_t size;
8853
8854 /* Send data frame to poll STA and check whether this frame is ACKed */
8855
8856 os_memset(&nulldata, 0, sizeof(nulldata));
8857
8858 if (qos) {
8859 nulldata.hdr.frame_control =
8860 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8861 WLAN_FC_STYPE_QOS_NULL);
8862 size = sizeof(nulldata);
8863 } else {
8864 nulldata.hdr.frame_control =
8865 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8866 WLAN_FC_STYPE_NULLFUNC);
8867 size = sizeof(struct ieee80211_hdr);
8868 }
8869
8870 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
8871 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8872 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8873 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8874
8cfa3527 8875 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0) < 0)
bcf24348
JB		 8876 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
8877 "send poll frame");
8878}
8879
39718852
JB		 8880static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
8881 int qos)
8882{
8883 struct i802_bss *bss = priv;
8884 struct wpa_driver_nl80211_data *drv = bss->drv;
8885 struct nl_msg *msg;
8886
8887 if (!drv->poll_command_supported) {
8888 nl80211_send_null_frame(bss, own_addr, addr, qos);
8889 return;
8890 }
8891
8892 msg = nlmsg_alloc();
8893 if (!msg)
8894 return;
8895
8896 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
8897
8898 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8899 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8900
8901 send_and_recv_msgs(drv, msg, NULL, NULL);
8902 return;
8903 nla_put_failure:
8904 nlmsg_free(msg);
8905}
8906
bcf24348 8907
29f338af
JM		 8908static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
8909{
8910 struct nl_msg *msg;
8911
8912 msg = nlmsg_alloc();
8913 if (!msg)
8914 return -ENOMEM;
8915
8916 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
8917 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8918 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
8919 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
8920 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8921nla_put_failure:
8922 nlmsg_free(msg);
8923 return -ENOBUFS;
8924}
8925
8926
8927static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
8928 int ctwindow)
8929{
8930 struct i802_bss *bss = priv;
8931
8932 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
8933 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
8934
8935 if (opp_ps != -1 || ctwindow != -1)
8936 return -1; /* Not yet supported */
8937
8938 if (legacy_ps == -1)
8939 return 0;
8940 if (legacy_ps != 0 && legacy_ps != 1)
8941 return -1; /* Not yet supported */
8942
8943 return nl80211_set_power_save(bss, legacy_ps);
8944}
8945
8946
03ea1786
AN		 8947#ifdef CONFIG_TDLS
8948
8949static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
8950 u8 dialog_token, u16 status_code,
8951 const u8 *buf, size_t len)
8952{
8953 struct i802_bss *bss = priv;
8954 struct wpa_driver_nl80211_data *drv = bss->drv;
8955 struct nl_msg *msg;
8956
8957 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8958 return -EOPNOTSUPP;
8959
8960 if (!dst)
8961 return -EINVAL;
8962
8963 msg = nlmsg_alloc();
8964 if (!msg)
8965 return -ENOMEM;
8966
8967 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
8968 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8969 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
8970 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
8971 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
8972 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
8973 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
8974
8975 return send_and_recv_msgs(drv, msg, NULL, NULL);
8976
8977nla_put_failure:
8978 nlmsg_free(msg);
8979 return -ENOBUFS;
8980}
8981
8982
8983static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
8984{
8985 struct i802_bss *bss = priv;
8986 struct wpa_driver_nl80211_data *drv = bss->drv;
8987 struct nl_msg *msg;
8988 enum nl80211_tdls_operation nl80211_oper;
8989
8990 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8991 return -EOPNOTSUPP;
8992
8993 switch (oper) {
8994 case TDLS_DISCOVERY_REQ:
8995 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
8996 break;
8997 case TDLS_SETUP:
8998 nl80211_oper = NL80211_TDLS_SETUP;
8999 break;
9000 case TDLS_TEARDOWN:
9001 nl80211_oper = NL80211_TDLS_TEARDOWN;
9002 break;
9003 case TDLS_ENABLE_LINK:
9004 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
9005 break;
9006 case TDLS_DISABLE_LINK:
9007 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
9008 break;
9009 case TDLS_ENABLE:
9010 return 0;
9011 case TDLS_DISABLE:
9012 return 0;
9013 default:
9014 return -EINVAL;
9015 }
9016
9017 msg = nlmsg_alloc();
9018 if (!msg)
9019 return -ENOMEM;
9020
9021 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
9022 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
9023 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9024 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
9025
9026 return send_and_recv_msgs(drv, msg, NULL, NULL);
9027
9028nla_put_failure:
9029 nlmsg_free(msg);
9030 return -ENOBUFS;
9031}
9032
9033#endif /* CONFIG TDLS */
9034
9035
216eede8
DS		 9036#ifdef ANDROID
9037
9038typedef struct android_wifi_priv_cmd {
9039 char *buf;
9040 int used_len;
9041 int total_len;
9042} android_wifi_priv_cmd;
9043
9044static int drv_errors = 0;
9045
9046static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
9047{
9048 drv_errors++;
9049 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
9050 drv_errors = 0;
9051 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
9052 }
9053}
9054
9055
9056static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
9057{
9058 struct wpa_driver_nl80211_data *drv = bss->drv;
9059 struct ifreq ifr;
9060 android_wifi_priv_cmd priv_cmd;
9061 char buf[MAX_DRV_CMD_SIZE];
9062 int ret;
9063
9064 os_memset(&ifr, 0, sizeof(ifr));
9065 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
9066 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9067
9068 os_memset(buf, 0, sizeof(buf));
9069 os_strlcpy(buf, cmd, sizeof(buf));
9070
9071 priv_cmd.buf = buf;
9072 priv_cmd.used_len = sizeof(buf);
9073 priv_cmd.total_len = sizeof(buf);
9074 ifr.ifr_data = &priv_cmd;
9075
9076 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9077 if (ret < 0) {
9078 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
9079 __func__);
9080 wpa_driver_send_hang_msg(drv);
9081 return ret;
9082 }
9083
9084 drv_errors = 0;
9085 return 0;
9086}
9087
9088
9089static int android_pno_start(struct i802_bss *bss,
9090 struct wpa_driver_scan_params *params)
9091{
9092 struct wpa_driver_nl80211_data *drv = bss->drv;
9093 struct ifreq ifr;
9094 android_wifi_priv_cmd priv_cmd;
9095 int ret = 0, i = 0, bp;
9096 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
9097
9098 bp = WEXT_PNOSETUP_HEADER_SIZE;
9099 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
9100 buf[bp++] = WEXT_PNO_TLV_PREFIX;
9101 buf[bp++] = WEXT_PNO_TLV_VERSION;
9102 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
9103 buf[bp++] = WEXT_PNO_TLV_RESERVED;
9104
9105 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
9106 /* Check that there is enough space needed for 1 more SSID, the
9107 * other sections and null termination */
9108 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
9109 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
9110 break;
9111 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
a97bde0a
JM		 9112 params->ssids[i].ssid,
9113 params->ssids[i].ssid_len);
216eede8
DS		 9114 buf[bp++] = WEXT_PNO_SSID_SECTION;
9115 buf[bp++] = params->ssids[i].ssid_len;
9116 os_memcpy(&buf[bp], params->ssids[i].ssid,
9117 params->ssids[i].ssid_len);
9118 bp += params->ssids[i].ssid_len;
9119 i++;
9120 }
9121
9122 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
9123 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
9124 WEXT_PNO_SCAN_INTERVAL);
9125 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
9126
9127 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
9128 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
9129 WEXT_PNO_REPEAT);
9130 bp += WEXT_PNO_REPEAT_LENGTH;
9131
9132 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
9133 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
9134 WEXT_PNO_MAX_REPEAT);
9135 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
9136
9137 memset(&ifr, 0, sizeof(ifr));
9138 memset(&priv_cmd, 0, sizeof(priv_cmd));
9139 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9140
9141 priv_cmd.buf = buf;
9142 priv_cmd.used_len = bp;
9143 priv_cmd.total_len = bp;
9144 ifr.ifr_data = &priv_cmd;
9145
9146 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9147
9148 if (ret < 0) {
9149 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
9150 ret);
9151 wpa_driver_send_hang_msg(drv);
9152 return ret;
9153 }
9154
9155 drv_errors = 0;
9156
9157 return android_priv_cmd(bss, "PNOFORCE 1");
9158}
9159
9160
9161static int android_pno_stop(struct i802_bss *bss)
9162{
9163 return android_priv_cmd(bss, "PNOFORCE 0");
9164}
9165
9166#endif /* ANDROID */
9167
9168
3f5285e8
JM		 9169const struct wpa_driver_ops wpa_driver_nl80211_ops = {
9170 .name = "nl80211",
9171 .desc = "Linux nl80211/cfg80211",
9172 .get_bssid = wpa_driver_nl80211_get_bssid,
9173 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 9174 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 9175 .scan2 = wpa_driver_nl80211_scan,
d21c63b9
LC		 9176 .sched_scan = wpa_driver_nl80211_sched_scan,
9177 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8
JM		 9178 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
9179 .deauthenticate = wpa_driver_nl80211_deauthenticate,
9180 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 9181 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 9182 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 9183 .global_init = nl80211_global_init,
9184 .global_deinit = nl80211_global_deinit,
9185 .init2 = wpa_driver_nl80211_init,
3f5285e8 9186 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 9187 .get_capa = wpa_driver_nl80211_get_capa,
9188 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 9189 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 9190 .set_country = wpa_driver_nl80211_set_country,
19c3b566 9191 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7
JM		 9192 .if_add = wpa_driver_nl80211_if_add,
9193 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 9194 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 9195 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 9196 .sta_add = wpa_driver_nl80211_sta_add,
9197 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 9198 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 9199 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 9200#ifdef HOSTAPD
9201 .hapd_init = i802_init,
c5121837 9202 .hapd_deinit = i802_deinit,
f7b3920c
JM		 9203 .set_wds_sta = i802_set_wds_sta,
9204#endif /* HOSTAPD */
9205#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 9206 .get_seqnum = i802_get_seqnum,
9207 .flush = i802_flush,
c5121837
JM		 9208 .get_inact_sec = i802_get_inact_sec,
9209 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 9210 .set_rts = i802_set_rts,
9211 .set_frag = i802_set_frag,
c5121837 9212 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 9213 .set_sta_vlan = i802_set_sta_vlan,
ee7ab173
JB		 9214 .sta_deauth = i802_sta_deauth,
9215 .sta_disassoc = i802_sta_disassoc,
9216#endif /* HOSTAPD || CONFIG_AP */
d732463c 9217 .read_sta_data = i802_read_sta_data,
e3802622 9218 .set_freq = i802_set_freq,
58f6fbe0 9219 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 9220 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 9221 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
9222 .cancel_remain_on_channel =
9223 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 9224 .probe_req_report = wpa_driver_nl80211_probe_req_report,
af473088 9225 .deinit_ap = wpa_driver_nl80211_deinit_ap,
3c29244e 9226 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
207ef3fb 9227 .resume = wpa_driver_nl80211_resume,
7b90c16a 9228 .send_ft_action = nl80211_send_ft_action,
b625473c 9229 .signal_monitor = nl80211_signal_monitor,
1c5c7273 9230 .signal_poll = nl80211_signal_poll,
b91ab76e 9231 .send_frame = nl80211_send_frame,
57ebba59 9232 .shared_freq = wpa_driver_nl80211_shared_freq,
c55f774d 9233 .set_param = nl80211_set_param,
6859f1cb 9234 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 9235 .add_pmkid = nl80211_add_pmkid,
9236 .remove_pmkid = nl80211_remove_pmkid,
9237 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 9238 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 9239 .poll_client = nl80211_poll_client,
29f338af 9240 .set_p2p_powersave = nl80211_set_p2p_powersave,
03ea1786
AN		 9241#ifdef CONFIG_TDLS
9242 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
9243 .tdls_oper = nl80211_tdls_oper,
9244#endif /* CONFIG_TDLS */
3f5285e8 9245};
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